The present invention relates to an electronic apparatus.
Conventionally, a technique of fixing a cable in a back surface portion of a display device using a so-called “hook-and-loop fastener” has been developed (see, for example, Patent Literature 1).
Patent Literature 1: JP 2014-153534 A
When an electronic apparatus is assembled, work (hereinafter referred to as “connection work”) of connecting a cable to a terminal in the electronic apparatus is performed. From the viewpoint of facilitating the connection work, it is preferable to use a cable having a so-called “extra length”. However, in a case where a cable having an extra length is used, when the cable is connected to the terminal, a part of the cable may protrude out of a predetermined region. In this case, from the viewpoint of avoiding the protruding portion from being caught by another member, the work of pushing the protruding portion into the predetermined region is required. Hereinafter, this work is referred to as “extra length processing”.
Here, although not described or suggested in Patent Literature 1, it is conceivable to use the fixing method described in Patent Literature 1 (hereinafter, referred to as a “conventional fixing method”) for fixing a cable inside an electronic apparatus. However, in the conventional fixing method, the extra length processing is not taken into consideration. For this reason, when the cable is connected to the terminal, there is a problem that the extra length processing is not performed, and a part of the cable may remain out of a predetermined region. In addition, even if the extra length processing is performed, after the protruding portion is pushed into the predetermined region, a so-called “return” occurs, so that the shape of the cable may return to the shape before being pushed in. As a result, there is a problem that the pushed-in portion may protrude out of the predetermined region again.
The present invention has been made to solve the above problem, and an object thereof is to provide an electronic apparatus having a structure for extra length processing.
An electronic apparatus of the present invention includes: a chassis and a substrate arranged to face each other; a cable disposed between the chassis and the substrate and having an extra length; and a plurality of dampers formed on the chassis and clamping the cable, in which the plurality of dampers includes a second damper fixedly clamping the cable and a third damper movably clamping the cable, the cable is fixed to the chassis by the second clamper, and the third damper limits a movable direction and a movable range of the cable in extra length processing of the cable.
According to the present invention, with the above configuration, it is possible to obtain an electronic apparatus having a structure for extra length processing.
Hereinafter, in order to explain this invention in more detail, a mode for carrying out this invention will be described with reference to the accompanying drawings.
An electronic apparatus 100 includes, for example, a display device for an in-vehicle information device. That is, as illustrated in
The liquid crystal module 3 and the substrate 5 are electrically connected by a flat cable 6. Further, the liquid crystal module 3 and the substrate 5 are electrically connected by a cable 7. Each of the flat cable 6 and the cable 7 is wired so as to avoid the chassis 4 inside the electronic apparatus 100. The front panel 1, the rear cover 2, the liquid crystal module 3, the chassis 4, the substrate 5, the flat cable 6, and the cable 7 constitute a main part of the electronic apparatus 100.
One end portion (hereinafter, referred to as a “first end portion”) of the cable 7 is electrically connected to the substrate 5. More specifically, a connector 11 is provided at the first end portion of the cable 7, a terminal 12 is provided on the substrate 5, and the connector 11 is connected to the terminal 12. Here, a connection portion (not illustrated) between the connector 11 and the terminal 12 has a cylindrical shape. Thus, the connector 11 is rotatable with respect to the terminal 12 in a state of being connected to the terminal 12.
The other end portion (hereinafter, referred to as a “second end portion”.) of the cable 7 is electrically connected to the liquid crystal module 3. For this reason, while the substantially half portion (hereinafter, referred to as a “first half portion”) including the first end portion of the cable 7 is disposed in a space portion (hereinafter, referred to as a “first space portion”) S1 between the chassis 4 and the substrate 5, the substantially half portion (hereinafter, referred to as a “second half portion”) including the second end portion of the cable 7 is disposed in a space portion (hereinafter, referred to as a “second space portion”) S2 between the liquid crystal module 3 and the chassis 4. As described above, at least a part of the cable 7 is disposed between the chassis 4 and the substrate 5.
The cable 7 is pulled out from the second space portion S2 to the first space portion S1 through a notch-shaped recess formed on the chassis 4 (13 in the drawing). Hereinafter, a portion from which the cable 7 is pulled out is referred to as a “pull-out portion”.
Hereinafter, among the directions along the plate surface of the chassis 4, a direction along a virtual straight line passing through the arrangement position of the terminal 12 and the arrangement position of the pull-out portion 13 is referred to as a “second direction” or a “Y direction”. In the drawing, the Y axis indicates a virtual axis along the Y direction. Among the directions along the plate surface of the chassis 4, a direction orthogonal to the Y direction is referred to as a “first direction” or an “X direction”. In the drawing, the X axis indicates a virtual axis along the X direction. Further, a direction orthogonal to the plate surface of the chassis 4, that is, a direction orthogonal to the X direction and the Y direction is referred to as a “Z direction”. In the drawing, the Z axis indicates a virtual axis along the Z direction.
In the example illustrated in
The chassis 4 is made of sheet metal, for example. A plurality of dampers 21 is formed by cutting and raising the sheet metal and step bending. More specifically, a first damper 21_1, a second damper 21_2, and a third damper 21_3 are formed. The first half portion of the cable 7 is clamped by the individual clampers 21.
As illustrated in
Hereinafter, in the X direction, a direction from the arrangement positions of the terminal 12 and the pull-out portion 13 toward the arrangement positions of the second damper 21_2 and the third damper 21_3 is referred to as a “positive direction”. Further, in the X direction, a direction from the arrangement positions of the second damper 21_2 and the third damper 21_3 to the arrangement positions of the terminal 12 and the pull-out portion 13 is referred to as a “negative direction”.
As illustrated in
Hereinafter, in the Y direction, a direction from the arrangement position of the terminal 12 toward the arrangement position of the pull-out portion 13, that is, a direction from the arrangement position of the third damper 21_3 toward the arrangement position of the second damper 21_2 is referred to as a “positive direction”. Further, in the Y direction, a direction from the arrangement position of the pull-out portion 13 toward the arrangement position of the terminal 12, that is, a direction from the arrangement position of the second damper 21_2 toward the arrangement position of the third damper 21_3 is referred to as a “negative direction”.
The opening direction of the first damper 21_1 is set to the negative direction with respect to the X direction and to the negative direction with respect to the Y direction. More specifically, the opening direction of the first damper 21_1 is set to a direction inclined by 45 degrees with respect to each of the X direction and the Y direction. The opening direction of the second damper 21_2 is set to the positive direction with respect to the Y direction. The opening direction of the third clamper 21_3 is set to the positive direction with respect to the X direction and to the negative direction with respect to the Y direction.
That is, the opening direction (positive direction) of the second damper 21_2 with respect to the Y direction is set to a direction opposite to the opening direction (negative direction) of the first damper 21_1 with respect to the Y direction, and is set to a direction opposite to the opening direction (negative direction) of the third clamper 21_3 with respect to the Y direction. In other words, the opening directions of the plurality of dampers 21_1, 21_2, and 21_3 with respect to the Y direction are set to alternately reverse directions (negative direction→positive direction→negative direction).
Hereinafter, a length L of a portion of the cable 7 disposed in the first space portion S1, that is, the length L of the first half portion of the cable 7 is referred to as a “wiring length”. Each of C1 and C2 in
A height H3 (see
As described above, the chassis 4 is made of sheet metal, for example. A protrusion 22 having a drawing shape is formed by drawing or the like on the sheet metal. The protrusion 22 is disposed between the first damper 21_1 and the second damper 21_2. The height H4 of the protrusion 22 is set to a value larger than that of the height H2 of the cut-and-raised portion in the second damper 21_2 (see
Next, with reference to
First, in a state where the first half portion of the cable 7 is pulled out from the second space portion S2 to the first space portion S1 through the pull-out portion 13, the worker performs work (hereinafter, referred to as “wiring work”) of sequentially hooking the first half portion of the cable 7 to the first damper 21_1, the second damper 21_2, and the third clamper 21_3. As a result, as illustrated in
Here, as described above, the opening directions of the plurality of dampers 21_1, 21_2, and 21_3 with respect to the Y direction are set to alternately reverse directions (negative direction→positive direction→negative direction). As a result, when the worker performs the wiring work, the movement of the hand of the worker can be made smooth. That is, the moving line of the hand of the worker can be a wavy smooth line. As a result, workability of wiring work can be improved.
Next, as illustrated in
However, when the connection work is performed, a part of the cable 7 protrudes to the region outside the chassis 4 due to the extra length of the cable 7 (see
Here, D2 in
That is, as described above, the connection portion between the connector 11 and the terminal 12 is configured to be rotatable. As a result, as illustrated in
Next, another effect of the structure of the electronic apparatus 100 will be described with reference to
Firstly, as shown in
Secondly, as shown in
Thirdly, as shown in
In addition, since the third clamper 21_3 is provided in addition to the first damper 21_1 and the second clamper 21_2, as illustrated in
Fourthly, the opening direction of the first damper 21_1 with respect to the X direction is set to the negative direction, and the opening direction of the second damper 21_2 with respect to the Y direction is set to the negative direction. That is, the opening direction of the first damper 21_1 is set to a direction inclined with respect to each of the X direction and the Y direction. As a result, it is possible to improve the workability of the work in which the worker hooks the cable 7 on the first clamper 21_1 and the work in which the worker hooks the cable 7 on the second damper 21_2. As a result, the mechanical load applied to the cable 7 by these works can be reduced. In addition, the behavior of the cable 7 when the cable 7 is clamped by the second damper 21_2 can be stabilized.
Fifth, the chassis 4 is provided with the protrusion 22 having a drawing shape. As shown in
Sixth, as shown in
Seventh, the height H3 (see
As a result, a plurality of functions can be implemented using the plurality of dampers 21. That is, the first clamper 21_1 and the second damper 21_2 mainly function to fix the cable 7 to the chassis 4. On the other hand, the third damper 21_3 mainly functions to guide the connector 11 to a position suitable for the connection work (that is, a position near the terminal 12) at the time of the wiring work, and functions to limit the movable direction and the movable range of the cable 7 in the extra length processing.
Next, a modification of the electronic apparatus 100 will be described.
The number of dampers 21, the arrangement positions of the individual dampers 21, the opening directions of the individual dampers 21, and the heights of the individual dampers 21 are not limited to the examples illustrated in
These parameters may be set so as to implement at least a function of fixing the cable 7 to the chassis 4, a function of limiting the movable direction of the cable 7 in the extra length processing to a predetermined direction, and a function of limiting the movable range of the cable 7 in the extra length processing to a predetermined range. More preferably, these parameters may be set so as to implement, in addition to these functions, a function of suppressing the return of the cable 7 after the extra length processing and a function of guiding the connector 11 to a position suitable for the connection work (that is, a position near the arrangement position of the terminal 12) by the wiring work.
That is, specific aspects of these parameters for implementing these functions can vary depending on the application, specification, and the like of the electronic apparatus 100. Therefore, these parameters only need to be set by those skilled in the art so that these functions are implemented in accordance with the application, specification, and the like of the electronic apparatus 100.
For example, the plurality of dampers 21 may include a fourth damper 21_4 (not illustrated) in addition to the first damper 21_1, the second damper 21_2, and the third clamper 21_3. The fourth damper 21_4 is formed on the chassis 4 instead of the protrusion 22. The fourth damper 21_4 fixedly holds the cable 7.
Further, for example, the second damper 21_2 may include two or more dampers. That is, the plurality of dampers 21 may include four or more dampers, and the cable 7 may be fixed by three or more dampers among the four or more dampers.
Further, for example, the terminal 12 and the pull-out portion 13 may be arranged at a center portion of the chassis 4 instead of being arranged at an edge portion of the chassis 4 (more specifically, one short side portion of two short side portions).
In addition, the connection portion between the connector 11 and the terminal 12 may be configured to be non-rotatable. However, as described above, from the viewpoint of reducing the mechanical load applied to the first end portion of the cable 7, the connection portion between the connector 11 and the terminal 12 is more preferably configured to be rotatable.
In addition, the application of the electronic apparatus 100 is not limited to the display device for the in-vehicle information device. The electronic apparatus 100 may be used for any electronic apparatus as long as it is an electronic apparatus including at least the chassis 4, the substrate 5, and the cable 7.
As described above, the electronic apparatus 100 according to the first embodiment includes the chassis 4 and the substrate 5 arranged to face each other, the cable 7 disposed between the chassis 4 and the substrate 5 and having an extra length, and the plurality of dampers 21 formed on the chassis 4 and clamping the cable 7. The plurality of dampers 21 includes the second damper 21_2 fixedly clamping the cable 7 and the third damper 21_3 movably clamping the cable 7. The cable 7 is fixed to the chassis 4 by the second damper 21_2, and the movable direction and the movable range of the cable 7 in the extra length processing of the cable 7 are limited by the third damper 21_3. As a result, the electronic apparatus 100 having a structure for extra length processing can be achieved. In addition, an additional member such as a hook-and-loop fastener can be made unnecessary in fixing the cable 7 to the chassis 4. As a result, it is possible to avoid an increase in the number of components of the electronic apparatus 100 due to such an additional member.
In addition, the plurality of dampers 21 suppresses the return of the cable 7 after the extra length processing. As a result, for example, it is possible to avoid the shape of the cable 7 from returning from the shape illustrated in
Further, the electronic apparatus 100 includes the connector 11 provided at the first end portion of the cable 7 and the terminal 12 provided on the substrate 5 and connected with the connector 11. The arrangement position of the second damper 21_2 with respect to the first direction (X direction) of the first direction (X direction) and the second direction (Y direction) orthogonal to each other among the directions along the plate surface of the chassis 4 is set at a position different from the arrangement position of the terminal 12 with respect to the first direction (X direction), and is set at a position equivalent to the arrangement position of the third damper 21_3 with respect to the first direction (X direction). The opening direction of the second damper 21_2 with respect to the second direction (Y direction) is set to the positive direction, and the opening direction of the third damper 21_3 with respect to the second direction (Y direction) is set to the negative direction. As a result, when the worker performs the wiring work, the connector 11 is guided to a position near the arrangement position of the terminal 12. That is, the connector 11 is guided to a position suitable for connection work. As a result, handling of the cable 7 in the connection work can be facilitated.
In addition, the third damper 21_3 is disposed inside the predetermined circle C2, and the predetermined circle C2 is a circle C2 that passes through a position corresponding to the arrangement position of the second damper 21_2, passes through a position corresponding to the arrangement position of the terminal 12, and has a circumferential length corresponding to the wiring length L of the cable 7. This makes it possible to suppress the occurrence of return of the cable 7.
The plurality of dampers 21 includes the first clamper 21_1 that fixedly clamps the cable 7, and the cable 7 is fixed to the chassis 4 by the first damper 21_1 and the second damper 21_2. The arrangement position of the first damper 21_1 with respect to the first direction (X direction) is set at a position between the arrangement position of the terminal 12 with respect to the first direction (X direction), and the arrangement position of the second damper 21_2 with respect to the first direction (X direction). The opening direction of the first damper 21_1 with respect to the second direction (Y direction) is set to a direction opposite to the opening direction of the second damper with respect to the second direction (Y direction). This makes it possible to stabilize the orientation of the cable 7 between the pull-out portion 13 and the second clamper 21_2. In addition, the movable direction of the cable 7 in the extra length processing can be limited to a predetermined direction, and the movable range of the cable 7 in the extra length processing can be limited to a predetermined range.
Further, the opening direction of the first damper 21_1 with respect to the first direction (X direction) is set to the negative direction, and the opening direction of the first damper 21_1 with respect to the second direction (Y direction) is set to the negative direction. As a result, it is possible to improve the workability of the work in which the worker hooks the cable 7 on the first damper 21_1 and the work in which the worker hooks the cable 7 on the second damper 21_2. As a result, the mechanical load applied to the cable 7 by these works can be reduced. In addition, the behavior of the cable 7 when the cable 7 is clamped by the second clamper 21_2 can be stabilized.
In addition, the electronic apparatus 100 includes the protrusion 22 provided on the chassis 4 and having a drawing shape, and the protrusion 22 is disposed between the first damper 21_1 and the second clamper 21_2. This makes it possible to stabilize the behavior of the cable 7 when the cable 7 is clamped by the second damper 21_2 in the wiring work. In addition, when the cable 7 is pushed in by the extra length processing, the cable 7 can be hardly detached from the second damper 21_2.
The height H4 of the protrusion 22 is set to a value larger than that of the height H2 of the second damper 21_2. As a result, when a plurality of cables including the cable 7 and the other cable 8 is arranged side by side in the Z direction between the first damper 21_1 and the second damper 21_2, the plurality of cables can be held.
The height H3 of the third damper 21_3 is set to a value larger than that of the height H2 of the second damper 21_2. As a result, the second damper 21_2 that fixedly clamps the cable 7 can be achieved, and the third damper 21_3 that movably clamps the cable 7 can be achieved. The third damper 21_3 can implement a function of limiting the movable direction and the movable range of the cable 7 in the extra length processing.
In addition, the connection portion between the connector 11 and the terminal 12 is configured to be rotatable. When the cable 7 is pushed in by the extra length processing, the connector 11 rotates with respect to the terminal 12, so that a mechanical load applied to the first end portion of the cable 7 can be reduced.
It should be noted that the invention of the present application is capable of modifying any of the constituent elements of the embodiment or omitting any of the constituent elements of the embodiment within the scope of the invention.
The electronic apparatus of the present invention can be used for, for example, a display device for an in-vehicle information device.
1: front panel, 2: rear cover, 3: liquid crystal module, 4: chassis, 5: substrate, 6: flat cable, 7: cable, 8: cable, 11: connector, 12: terminal, 13: pull-out portion, 21: damper, 21_1: first damper, 21_2: second damper, 21_3: third damper, 22: protrusion, 100: electronic apparatus
Filing Document | Filing Date | Country | Kind |
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PCT/JP2019/026664 | 7/4/2019 | WO | 00 |