Patent Application
20250192332
The present disclosure relates to a holder and a power storage unit.
Power storage units that accommodate a plurality of power storage elements are known. The power storage unit is used as, for example, an auxiliary power source that supplies power to in-vehicle electrical equipment when an abnormality occurs in a battery of a vehicle. For example, JP 2016-81795A discloses a power storage unit including a plurality of power storage devices (power double layer capacitors) held by a holder.
Also, J P 2020-114112A discloses a configuration in which a metal shield case that covers both surfaces of a circuit board is electrically connected to a ground line (a line connected to a ground potential) of the circuit board.
There is demand for reducing the size of a power storage unit. For example, although a plurality of power storage devices were conventionally held vertically by an upper holder and a lower holder, JP 2016-81795A discloses that a plurality of power storage devices are cantilevered by only a lower holder (the holder in JP 2016-81795A) to reduce the height of the power storage unit. In JP 2016-81795A, the power storage devices are held by a pair of holding portions provided on a holder.
The present disclosure aims to further reduce the size of the power storage unit.
A power storage unit according to the present disclosure includes: a resin holder configured to accommodate a power storage element with the power storage element partially exposed to an upper side; a circuit board that includes wiring electrically connected to the power storage element and is fixed to a lower side of the holder; and a metal case configured to accommodate the power storage element and the holder by fixing an open end that is open to the lower side to the circuit board, in which the holder includes one or more pillar portions protruding toward the upper side relative to the power storage element.
According to the present disclosure, the power storage unit can be made smaller.
The gist of the present disclosure includes the following configurations.
A power storage unit according to the present disclosure includes: a resin holder configured to accommodate a power storage element with the power storage element partially exposed to an upper side; a circuit board that includes wiring electrically connected to the power storage element and is fixed to a lower side of the holder; and a metal case configured to accommodate the power storage element and the holder by fixing an open end that is open to the lower side to the circuit board, in which the holder includes one or more pillar portions protruding toward the upper side relative to the power storage element.
When the case bends toward the lower side due to vibration of the vehicle or the like, the pillar portions come into contact with the case, thereby suppressing the bending of the case. This makes it possible to suppress short-circuiting between the case and the power storage element caused by the bent case coming close to the power storage element in the up-down direction. According to the power storage unit of the present disclosure, inclusion of the pillar portions eliminates the need to design an excessively large gap between the case and the power storage element taking into consideration the amount by which the case bends in order to suppress short-circuiting. That is, the gap between the case and the power storage element can be made even smaller. As a result, the power storage unit can be made smaller.
The case may include an opposing wall opposing the power storage element and the holder in the up-down direction, and the one or more pillar portions may come into contact with the opposing wall before the power storage element comes into contact with the opposing wall when the opposing wall bends toward the lower side.
With this configuration, a gap can be maintained between the opposing wall and the power storage element, thereby suppressing short-circuiting of the power storage element with the opposing wall.
The wiring may include a ground line, the open end may be electrically connected to the ground line, and the one or more pillar portions may oppose the opposing wall with a gap therebetween in the up-down direction when the opposing wall is not bending.
With this configuration, the effect of the tolerance of the pillar portions can be absorbed by the gap, and therefore it is possible to prevent the case from floating in the up-down direction from the circuit board. Also, by providing this gap, the pillar portions do not come into contact with the opposing wall when the opposing wall bends slightly, and the pillar portions can come into contact with the opposing wall only when the opposing wall bends so much that there is a risk of short-circuiting with the power storage element. As a result, it is possible to reduce the load on the fastening portion between the case and the circuit board.
The one or more pillar portions may include at least one of a first pillar portion protruding toward the upper side from a corner of the holder, and a second pillar portion protruding toward the upper side from a side of the holder.
By providing pillar portions at the corners or sides of the holder, the bent case can be supported and the pillar portions can increase the rigidity of the outer frame portion of the holder, thereby suppressing bending of the holder as well. This also makes it possible to prevent short-circuiting caused by the holder bending and the power storage element held by the holder coming close to the case.
A plurality of the power storage elements may be arranged side by side in an arrangement direction intersecting the up-down direction, the holder may include a plurality of recesses respectively accommodating the plurality of power storage elements, a frame portion that partitions two recesses adjacent to each other in the arrangement direction among the plurality of recesses, and a holding portion that protrudes upward from the frame portion and is configured to hold the power storage elements by coming into contact in the arrangement direction with the power storage elements accommodated in the recesses, and the one or more pillar portions may include a third pillar portion protruding toward the upper side from the holding portion.
The third pillar portion is provided on the holding portion, and therefore can oppose the central region of the opposing wall in the up-down direction and support the portion of the opposing wall that bends significantly. This makes it possible to more reliably prevent short-circuiting between the power storage elements and the opposing wall.
Hereinafter, details of embodiments of the present disclosure will be described with reference to the drawings.
The power storage unit 10 is an auxiliary power source (backup power source) that is mounted in, for example, a vehicle, and that, in the event of an abnormality such as a drop in voltage in a battery of the vehicle, supplies auxiliary power to various parts in the vehicle that are normally supplied with power by the battery. The power storage unit 10 may supply power to in-vehicle electrical equipment such as lamps, or may supply power to an actuator that controls a shift lever or the like of the vehicle.
As shown in
The substrate unit 20 includes a plurality of power storage elements 50, a holder 60, and a circuit board 70. In this embodiment, eight power storage elements 50 are arranged in the arrangement direction, but the number of power storage elements 50 is not particularly limited. The holder 60 holds the plurality of power storage elements 50 with the power storage elements 50 exposed to an upper side in a direction (hereinafter referred to as the “up-down direction”) intersecting the arrangement direction. The circuit board 70 is fixed to the lower side of the holder 60 in the up-down direction.
The direction intersecting both the arrangement direction and the up-down direction is referred to as the “width direction”. In this embodiment, the arrangement direction, the vertical direction, and the width direction are perpendicular to each other. However, these directions may be oblique and do not need to be perpendicular to each other. In each drawing, the arrangement direction is indicated by an arrow x, the width direction is indicated by an arrow y, and the up-down direction is indicated by an arrow z. In the arrangement direction and width direction, the side indicated by the arrow is referred to as “one side” and the opposite side is referred to as the “other side”. In the up-down direction, the side indicated by the arrow is referred to as the “upper side” and the opposite side is referred to as the “lower side”. The up-down direction in each drawing is a direction for convenience and does not necessarily need to coincide with the vertical direction (direction of gravity) when the power storage unit 10 is installed.
In
In this embodiment, eight recesses 61 are formed in the holder 60, which is the same as the number of power storage elements 50. Each of the plurality of recesses 61 accommodates one of the plurality of power storage elements 50. The shape of the recesses 61 corresponds to the outer circumferential shape of power storage elements 50, and in this embodiment, is a semi-cylindrical shape recessed to the lower side. The recesses 61 are open to the upper side. The power storage elements 50 are accommodated in the recesses 61 with portions thereof (specifically, the upper halves of the cylinders) exposed to the upper side.
The plurality of frame portions 62 are regions extending in the width direction, and each of the frame portions 62 partitions two recesses 61 adjacent to each other in the arrangement direction. In this embodiment, seven frame portions 62 are formed in the holder 60, which is one less than the number of recesses 61. Hereinafter, any one of the plurality of recesses 61 will be referred to as a “first recess 611” as appropriate, and the recess 61 adjacent to the first recess 611 on the one side in the arrangement direction will be referred to as a “second recess 612” as appropriate. In
Also, among the plurality of frame portions 62, the frame portion 62 that partitions the first recess 611 and the second recess 612 will be referred to as a “frame portion 62a” as appropriate. As shown in
The outer frame portion 63 is an outer frame formed on the four sides of the holder 60. The outer frame portion 63 includes two first side portions 631 extending in the arrangement direction, two second side portions 632 extending in the width direction, and four corner portions 633 where the first side portions 631 and second side portions 632 abut each other. The first side portions 631 and the second side portions 632 are the sides of the holder 60, and the corner portions 633 are the corners of the holder 60.
In each drawing, the lengths of the first side portions 631 in the arrangement direction are longer than the lengths of the second side portions 632 in the width direction. That is, the first side portions 631 are the long sides of the holder 60 and the second side portions 632 are the short sides of the holder 60. Note that the first side portions 631 may be the short sides of the holder 60, or the holder 60 may have a square shape in which the first side portions 631 and the second side portions 632 are equal in length.
The plurality of holding portions 64 are claw-shaped regions that protrude toward the upper side from the frame portions 62 or the second side portions 632. The plurality of holding portions 64 respectively come into contact with the power storage elements 50 accommodated in the recesses 61 to hold the power storage elements 50 in the recesses 61. In this embodiment, three holding portions 64 are provided on one frame portion 62 and one or two holding portions 64 are provided on one second side portion 632, but the number of holding portions 64 is not particularly limited.
Among the plurality of holding portions 64, the holding portion 64 that comes into contact with the power storage element 50 accommodated in the recess 61 from the one side in the arrangement direction (the right side in
The guide portion 643 includes an inclined surface. The inclined surface included in the guide portion 643 of the first holding portion 641 inclines to the one side in the arrangement direction toward the top. The inclined surface included in the guide portion 643 of the second holding portion 642 inclines to the other side in the arrangement direction toward the top. That is, the inclined surface is inclined so as to be located away from the center in the arrangement direction of the recess 61 in which the power storage device 50 guided by the guide portion 643 is accommodated.
When the power storage element 50 is inserted into the recess 61, the power storage element 50 is brought relatively close to the recess 61 in the up-down direction and first comes into contact with the guide portion 643. Then, the outer peripheral surface of power storage element 50 slides toward the lower side along the inclined surface of guide portion 643, and pushes out the guide portion 643 in the arrangement direction. At this time, the holding portion 64 is elastically deformed in the arrangement direction. When a vertex P2 in the width direction of the power storage element 50 at which is the width in the arrangement direction is the widest passes over the guide portion 643 and the contact portion 644 toward the opposite side in the up-down direction, the elastic deformation of the holding portion 64 in the arrangement direction is reduced, and the contact portion 644 presses the power storage element 50 into the recess 61. As a result, the power storage element 50 is accommodated in the recess 61 while being held by the holding portion 64.
Here, in JP 2016-81795A, the two holding portions oppose each other with a recess interposed therebetween (paragraph 0038, FIGS. 7 and 9 of JP 2016-81795A). In contrast, in this embodiment, the first holding portion 641 and the second holding portion 642 provided on the same frame portion 62 (e.g., frame portion 62a) do not overlap in a view from the arrangement direction, as shown in
With this configuration, the width of the frame portion 62 in the arrangement direction can be narrowed, and therefore the holder 60 can be made smaller. As a result, the power storage unit 10 can be made smaller.
Also, as shown in
With this configuration, the first holding portions 641 and the second holding portions 642 can be arranged repeatedly in a more compact manner, and therefore the width of each of the plurality of frame portions 62 in the arrangement direction can be narrowed, and thus the holder 60 can be made even smaller.
As shown in
In this manner, the plurality of second holding portions 642 are located apart from each other in the width direction with the first holding portion 641 interposed therebetween, and therefore the power storage elements 50 can each be held at two or more points spaced apart from each other in the width direction. This allows the power storage elements 50 to be held more stably.
Also, two second holding portions 642 are provided on the frame portion 62b with a gap therebetween in the width direction. The first holding portion 641 provided on the frame portion 62a is located between the two second holding portions 642 in the width direction. That is, the first power storage element 50a is held at two locations from the other side in the arrangement direction, and at one location between the two locations from the one side in the arrangement direction. This makes it possible to more stably hold the first power storage element 50a while reducing the number of holding portions 64 that hold the first power storage element 50a.
The plurality of pillar portions 65 protrude toward the upper side relative to at least one of the plurality of power storage elements 50 (e.g., the first power storage element 50a) among the plurality of power storage elements 50 respectively accommodated in the plurality of recesses 61. In this embodiment, the plurality of power storage elements 50 have the same shape as each other, and the plurality of recesses 61 also have the same shape as each other, and therefore the plurality of pillar portions 65 protrude toward the upper side relative to all of the plurality of power storage elements 50. As shown in
As shown in
By providing the pillar portions 65 at the corners or sides of the holder 60, the bent case 31 can be supported, and the pillar portions 65 can increase the rigidity of the outer frame portion 63 of the holder 60, and therefore bending of the holder 60 can also be suppressed. This also makes it possible to prevent short-circuiting caused by the holder 60 bending and the power storage elements 50 held by the holder 60 coming close to the case 31.
The circuit board 70 has a connector portion 74 that electrically connects the wiring 72 to external wiring, and a connector surface 75 (underside surface) that is the surface on the underside of the circuit surface 71 and on which the connector portion 74 is provided. The electric power extracted from the plurality of power storage elements 50 to the wiring 72 is supplied to the external wiring via the connector portion 74.
The case 31 includes an opposing wall 311, side walls 312, and an open end 313. The opposing wall 311 is a wall that opposes the plurality of power storage elements 50 and the holder 60 in the up-down direction, and in this embodiment is a plate-shaped region that extends in the arrangement direction and the width direction. The side walls 312 are four walls extending toward the lower side from the peripheral edge of the opposing wall 311, and are a region that supports the opposing wall 311 in a state in which the opposing wall 311 opposes the plurality of power storage elements 50 and the holder 60.
The open end 313 is an end portion provided on the lower sides of the side walls 312. The case 31 is open to the lower side at the open end 313. The open end 313 of this embodiment is provided on the lower side of the case 31 in a “brim” shape.
The open end 313 is fixed to the circuit surface 71 of the circuit board 70 by fastening members (not shown) such as bolts and nuts, while being electrically connected to the ground line 73b of the circuit board 70. As a result, the entire case 31 is at ground potential. By accommodating the plurality of power storage elements 50 together with the holder 60 in the case 31 at ground potential, the power storage elements 50 can be protected from electrical noise outside of the case 31.
Similarly to the case 31, the partner case 32 includes an opposing wall 321, side walls 322, and an open end 323. The opposing wall 321 is a wall that opposes the connector surface 75 of the circuit board 70 in the up-down direction, and in this embodiment is a plate-shaped region that extends along the arrangement direction and the width direction. The side walls 322 are four walls extending toward the upper side from the peripheral edge of the opposing wall 321, and are a region that supports the opposing wall 321 in a state in which the opposing wall 321 opposes the connector surface 75. The side walls 322 include a notch C1 for exposing the connector portion 74 to the outside.
The open end 323 is an end portion provided on the upper side of the side wall 322. The partner case 32 is open to the upper side at the open end 323. In this embodiment, the open end 323 is provided on the upper side of the partner case 32 in a “brim” shape.
The open end 323 is fixed to the connector surface 75 of the circuit board 70 by fastening members (not shown) such as bolts and nuts, while being electrically connected to the ground line 73b of the circuit board 70. As a result, the entire partner case 32 is at ground potential, and the shield unit 30 is at ground potential.
By accommodating the substrate unit 20 in the shield unit 30 at ground potential, the substrate unit 20 can be more reliably protected from electrical noise outside of the shield unit 30.
The relationship between the opposing walls 311 of the case 31 and the pillar portions 65 will be described with reference to
For this reason, the gap between the opposing wall 311 and the power storage elements 50 (the distance from the vertex P1 on the upper side of the power storage elements 50 to the opposing wall 311) is made as small as possible without causing short-circuiting between the power storage elements 50 and the opposing wall 311.
Here, it is preferable that the case 31 is thin from the viewpoint of reducing the size and weight of the power storage unit 10. However, if the case 31 is thin, in some cases, the opposing wall 311 will significantly bend toward the lower side due to, for example, vibrations of the vehicle in which the power storage unit 10 is mounted or the like. If the gap between the power storage elements 50 and the opposing wall 311 is made as small as possible without causing short-circuiting between the power storage elements 50 and the opposing wall 311, then when the opposing wall 311 bends toward the lower side in this manner, there is a risk that the power storage elements 50 will short-circuit with the opposing wall 311.
In view of this, in this embodiment, by supporting the opposing wall 311 that bends toward the lower side by the pillar portions 65, the opposing wall 311 is prevented from approaching the power storage elements 50. That is, when the opposing wall 311 bends toward the lower side, the pillar portions 65 come into contact with the opposing wall 311 before the power storage elements 50 come into contact with the opposing wall 311, thereby suppressing bending of the opposing wall 311. This makes it possible to maintain a gap between the opposing wall 311 and the power storage elements 50, thereby preventing the power storage elements 50 from short-circuiting with the opposing wall 311.
In this way, in the present embodiment, inclusion of the pillar portions 65 eliminates the need to design an excessively large gap between the case 31 and the power storage elements 50 taking into consideration the amount by which the case 31 bends in order to suppress short-circuiting. That is, the gap between the case 31 and the power storage elements 50 can be made even smaller. As a result, the power storage unit 10 can be made smaller.
Here, when the opposing wall 311 is not bent in the up-down direction, the pillar portions 65 oppose the opposing wall 311 with a gap D1 therebetween in the up-down direction. That is, when the opposing wall 311 is not bent in the up-down direction, the pillar portions 65 are not in contact with the opposing wall 311.
Since the holder 60 is formed through, for example, injection molding, there may be a tolerance of, for example, about 0.1 mm in the height of the pillar portions 65 in the up-down direction. If the pillar portions 65 are arranged so as to be in constant contact with the non-flexible opposing wall 311, the tolerance of the pillar portions 65 may cause the case 31 to float above the circuit board 70 in the up-down direction, which may result in the electrical connection between the case 31 and the ground line 73b being cut off.
The pillar portions 65 in this embodiment oppose the non-flexible opposing wall 311 with the gap D1 therebetween in the up-down direction, and therefore the effect of the tolerance is absorbed by the gap D1, and the case 31 can be prevented from constantly floating in the up-down direction from the circuit board 70.
Also, in some cases, vibration causes the opposing wall 311 to bend slightly while a gap sufficient to prevent short-circuiting between the opposing wall 311 and the power storage elements 50 is maintained. In such a case, if the pillar portions 65 are configured to individually come into contact with the opposing wall 311, there is a risk that the pillar portions 65 will push the case 31 in the up-down direction every time the opposing wall 311 bends slightly, which will result in a load acting on the fastening portions between the case 31 and the circuit board 70. In this case, there is a risk that the bolts and nuts fastening the case 31 and the circuit board 70 will easily come loose, or the electrical connection between the case 31 and the ground line 73b will frequently come loose.
In this embodiment, due to the gap D1, the pillar portions 65 do not come into contact with the opposing wall 311 when the opposing wall 311 bends slightly, but can come into contact with the opposing wall 311 only when the opposing wall 311 bends so much that there is a risk of short-circuiting with the power storage elements 50. This reduces the load on the fastening portion between the case 31 and the circuit board 70. Also, the electrical connection between the case 31 and the ground line 73b can be maintained more continuously.
The partner cover 42 is a substantially cuboid-shaped housing that is open to the upper side. The partner cover 42 covers the substrate unit 20 and the shield unit 30 from below, with the connector portion 74 exposed to the outside.
In the power storage unit 10 of this embodiment, the shield unit 30 made of metal is located inside of the cover unit 40 made of resin. For this reason, the cover unit 40 can protect the shield unit 30 from a configuration outside of the power storage unit 10 (e.g., the frame of a vehicle body on which the power storage unit 10 is installed, etc.). Because of the protection provided by the cover unit 40, there is little problem even if the strength of the shield unit 30 is reduced. For this reason, by providing the cover unit 40, the shield unit 30 can be made thinner, and the weight of the power storage unit 10 can be reduced.
Modified examples of the embodiment will be described below. In the modified examples, portions that are unchanged from the embodiment are denoted by the same reference numerals and description thereof is omitted.
The plurality of pillar portions 65 may include third pillar portions 653 protruding in the up-down direction from the holding portion 64. For example, the third pillar portions 653 are formed by further extending the leading ends on the upper sides of the holding portions 64. The third pillar portions 653 are higher than the vertex P1 of the power storage elements 50 by a height H2, and oppose the opposing wall 311 with a gap D2 therebetween in the up-down direction.
The opposing wall 311 tends to bend more significantly the more spaced apart from the side wall 312 it is (that is, the closer to the central region in the arrangement direction and the width direction of the opposing wall 311 it is). Since the third pillar portions 653 are provided on the holding portions 64, the third pillar portions 653 can oppose the central region of the opposing wall 311 in the up-down direction and can support the portion of the opposing wall 311 that bends significantly. This makes it possible to more reliably suppress short-circuiting between the power storage elements 50 and the opposing wall 311.
Also, since the third pillar portions 653 are additionally formed on top of the holding portions 64, which are structures provided for holding the power storage elements 50, the amount of resin required for their formation can be reduced compared to the first pillar portions 651 and the second pillar portions 652, which are formed on the outer frame portion 63. This makes it possible to reduce the weight of the power storage unit 10 and reduce the material cost of the resin. The third pillar portions 653 may be formed on all of the holding portions 64 or on some of the holding portions 64. When the third pillar portions 653 are formed on some of the holding portions 64, for example, they may be formed on the holding portions 64 located in the center in the arrangement direction (in the example of
In the above embodiment and modified example, the holder 60 is provided with a plurality of pillar portions 65. However, the number of pillar portions 65 provided on the holder 60 may be one. For example, only the holding portion 64 located the closest to the center (in the example of
In a holder 60a according to this modified example, the arrangement of the holding portions 64 is different from that of the holder 60 of the embodiment, but the other configurations are the same as those of the embodiment.
In the above embodiment, the holding portions 64 are arranged in a staggered pattern, and the first holding portion 641 and the second holding portions 642 that hold one power storage element 50 do not overlap in a view in the arrangement direction. However, the arrangement of the holding portions 64 of the present disclosure is not limited to this, and such first holding portions 641 and second holding portions 642 may overlap in a view in the arrangement direction.
In
One each of the first holding portion 641a and the second holding portion 642b is provided on the frame portion 62a that partitions the first recess 611 and the second recess 612. As in the above embodiment, in a view from the arrangement direction, the first holding portion 641a does not overlap with the second holding portion 642b.
The second holding portion 642a is provided on a frame portion 62b adjacent to the opposite side in the arrangement direction of the frame portion 62a. In a view from the arrangement direction, the second holding portion 642a overlaps with the first holding portion 641a, but does not overlap with the second holding portion 642b. Similarly, the first holding portion 641b is provided on a frame portion 62c (the second side portion 632 in the example of
In the above embodiment, the first holding portion 641 and the second holding portion 642 do not directly oppose each other in the arrangement direction, and therefore a plurality of power storage elements 50 can be held at the same location (holding conditions can be made uniform), but it was necessary to hold the power storage elements 50 at at least three locations.
In contrast, the second holding portion 642a according to the modified example directly opposes the first holding portion 641a in the arrangement direction, and therefore the first power storage element 50a can be stably held at two locations, namely the first holding portion 641a and the second holding portion 642a. Also, since the first holding portion 641b according to the modified example directly opposes the second holding portion 642b in the arrangement direction, the second power storage element 50b can be stably held at two locations, namely the first holding portion 641b and the second holding portion 642b. As a result, the number of holding portions 64 can be reduced and the weight of the power storage unit 10 can be reduced compared to the above embodiment.
In the above embodiment, one power storage element 50 is held by three holding portions 64. However, the number of holding portions 64 used to hold one power storage element 50 is not particularly limited as long as it is two or more. Also, in the above embodiment, all of the power storage elements 50 are held by three holding portions 64, but the number of holding portions 64 that hold the power storage elements 50 in one holder 60 may be different.
For example, two power storage elements 50 that are accommodated in the recesses 61 that are adjacent to the outer frame portion 63 and are located at both ends in the arrangement direction may each be held by four holding portions 64, and the other storage elements 50 may each be held by three holding portions 64. Since the outer frame portion 63 has room for providing more holding portions 64 than the frame portion 62, more holding portions 64 may be provided.
Also, the power storage elements 50 accommodated in the recesses 61 near the center in the arrangement direction may be held by more holding portions 64 than the other power storage elements 50. The bending of the holder 60 tends to reach its maximum near the center in the arrangement direction. For this reason, by holding the power storage elements 50 accommodated in the portion with significant bending with more holding portions 64, the power storage elements 50 can be held more stably.
In the above-described embodiment, a plurality of power storage elements 50 are accommodated in the holder 60. However, there may also be only one power storage element 50 accommodated in the holder 60.
Note that at least some of the above-described embodiments and various modified examples may be combined with each other as appropriate. Also, the embodiments disclosed herein are to be considered as illustrative in all respects and not limiting. The scope of the present disclosure is defined by the claims, and all modifications within the meaning and scope of equivalency to the claims are intended to be encompassed therein.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2022-031088 | Mar 2022 | JP | national |
This application is the U.S. national stage of PCT/JP2023/004602 filed on Feb. 10, 2023, which claims priority of Japanese Patent Application No. JP 2022-031088 filed on Mar. 1, 2022, the contents of which are incorporated herein.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/JP2023/004602 | 2/10/2023 | WO |
