Patent Application
20200274130
The present application claims priority to Chinese Patent Application No. 201920240599.4, filed on Feb. 26, 2019, the content of which is incorporated herein by reference in its entirety.
The present disclosure relates to the technical field of energy storage devices, and in particular, to a wire-bundle receiving bracket and a battery module.
A battery module includes a plurality of batteries. In order to acquire data about characteristics such as voltage and temperature of each battery, a sampling wire-bundle is provided in the battery module. Since there is a large number of sampling wire-bundles provided in the battery module and a potential difference between the wire-bundles is relatively high, the improper installation and fixation of the wire-bundle may cause abnormal abrasion of an insulation layer of the wire-bundle, and further cause electric leakage and short circuit, which may further result in more electrical failures or even a fire on the battery module. In such a case, personal safety and property safety are in danger.
At present, the wire-bundle is installed and fixed mainly in two ways. The first way is strapping, which is inconvenient to operate and may result in a lower productivity of the battery module. The second way is snap-in, which may easily cause a detachment of the wire-bundle from a wire slot due to the presence of an opening in the wire slot and thus reduces the reliability of the battery module.
The present disclosure provides a wire-bundle receiving bracket and a battery module to facilitate installing and receiving the wire-bundle, thereby improving reliability of receiving the wire-bundle.
In one aspect, the present disclosure provides a wire-bundle receiving bracket for receiving a wire-bundle of a battery module, including a wire-bundle receiving slot comprising a first side wall and a second side wall opposite to the first side wall; and a clasp part comprising a cover plate for covering the wire-bundle receiving slot, and a curved portion and a buckling portion that are disposed at two ends of the cover plate, wherein the curved portion is connected to the first side wall, and the buckling portion is buckled on the second side wall.
In an embodiment, the curved portion has an elastic arcuate structure.
In an embodiment, the curved portion has a smaller thickness than the cover plate.
In an embodiment, an avoiding slot is formed between an inner side of the curved portion and the cover plate.
In an embodiment, a protrusion is provided at an inner side of the cover plate to tightly press the wire-bundle.
In an embodiment, a groove is provided in a middle portion of the protrusion, and the groove extends along a length direction of the wire-bundle receiving slot and extends over a whole length of the protrusion.
In an embodiment, the buckling portion comprises an extending section and a first buckling section, the extending section extends in a direction facing towards an inner side of the cover plate, and the first buckling section is disposed at an end of the extending section facing away from the cover plate, and a second buckling section for matching the first buckling section is provided on the second side wall.
In an embodiment, the wire-bundle receiving slot and the clasp part are formed into one piece by injection molding.
In an embodiment, the wire-bundle receiving bracket further includes a baffle. The baffle includes a first end fixedly connected to the first side wall or the second side wall, and a second end provided with a mounting notch.
In a second aspect, the disclosure provides a battery module, including the wire-bundle receiving bracket described in the first aspect.
The technical solutions provided by the present disclosure can achieve the following beneficial effects.
The wire-bundle receiving bracket provided by the present disclosure includes a wire-bundle receiving slot and a clasp part. The wire-bundle receiving slot is provided with an opening for facilitating installation of the wire-bundle. The opening of the wire-bundle receiving slot is covered by clasp part, so that the wire-bundle is received in the wire-bundle receiving slot. The operation is convenient, and the wire-bundle is reliably received. An end of the clasp part is provided with a curved portion, and the curved portion is connected to the first side wall of the wire-bundle receiving slot, so that the clasp part can flip to open and close the opening of the receiving slot. Another end of the clasp part is provided with a buckling portion, and the buckling portion is buckled on the second side wall of the wire-bundle receiving slot to close the opening of the wire-bundle receiving slot by the clasp part during use, thereby prevent the wire-bundle from detaching from the wire-bundle receiving slot.
It should be understood that the foregoing general description and the following detailed description are merely illustrative and are not intended to limit the present disclosure.
The drawings herein are incorporated into and constitute a part of the present specification, illustrate embodiments of the present disclosure and explain principles of the present disclosure together with the specification.
In order to make the purpose, technical solutions, and advantages of the embodiments of the present disclosure be understandable, the technical solutions in the embodiments of the present disclosure are described in the following with reference to the accompanying drawings. It should be understood that the described embodiments are merely exemplary embodiments of the present disclosure, which shall not be interpreted as providing limitations to the present disclosure.
In the description of the present disclosure, the terms “first” and “second” are used merely for a purpose of description, which shall not be construed as indicating or implying relative importance, unless otherwise stated or indicated. The term “plurality” means two or more, unless otherwise stated or indicated. The terms “connect”, “fix” and the like shall be construed in a broad sense. For example, “connection” may be fixed connection, detachable connection, integral connection, or electrical connection, and the “connection” may be either direct connection or indirect connection via an intermediate element. For those skilled in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific situations.
It should be understood that in the description of the present disclosure, the terms such as “upper”, “lower” and the like are used to indicate positions shown in the drawing, instead of being construed as limitations of the embodiment of the present disclosure. In addition, when an element is described as being “above” or “under” another element in the context, it should be understood that the element can be directly or via an intermediate element located “above” or “under” another element.
As shown in
The embodiment shown in
In an embodiment, the wire-bundle receiving slot 30 and the clasp part 32 are made of a same material, and the wire-bundle receiving slot 30 and the clasp part 32 are formed into one piece by injection molding, which is simple and can produce a reliable connection.
The curved portion 322 can be any structure allowing the clasp part 32 to flip, such as a hinge structure or a bendable structure having elasticity.
In an embodiment, when the clasp part 32 is in the closed state, the curved portion 322 is an elastic arcuate structure. When the clasp part 32 opens the opening of the wire-bundle receiving slot 30 by flipping, the curved portion 322 is stretched into a linear structure or an approximately linear structure. When the clasp part 32 closes the opening of the wire-bundle receiving slot 30 by flipping, the curved portion 322 is deformed by bending and forms a rebound force. Under the effect of the rebound force, the clasp part 32 is tightly connected to the wire-bundle receiving slot 30 through the buckling portion 324, thereby preventing a vibration of the clasp part 32 from affecting the fixation reliability of the wire-bundle 4.
Further, the curved portion 322 has a smaller thickness than the cover plate 320, and thus the curved portion 322 and the cover plate 320 have different elasticity. In other words, the curved portion 322 has a smaller thickness and a greater elasticity, and thus is likely to be bent and deformed to flip the clasp part 32; and the cover plate 320 has a greater thickness and a lower elasticity, which inhibits the bending and deformation, such that the clasp part 32 is capable of closing the opening of the wire-bundle receiving slot 30.
For example, when the thickness of the curved portion 322 is smaller than the thickness of the cover plate 320, an avoiding slot 322a is formed between an inner side of the curved portion 322 and the cover plate 320. On the one hand, the avoiding slot 322a is located at the inner side the curved portion 322, and thus an outer portion of the wire-bundle receiving bracket 3 maintains flat when the clasp part 32 is in the closed state, such that sharp portions are prevented from scratching the operator or other components; on the other hand, since the inner side of the curved portion 322 is not completely fitted during bending, a gap is formed between the cover plate 320 and the top of the wire-bundle receiving slot 30, with the avoiding slot 322a, the cover plate 320 can protrude from the inner side of the curved portion 322, thereby reducing the gap between the cover plate 320 and the top of the wire-bundle receiving slot 30, reducing the movable space of the clasp part 32, and increasing the fixation reliability of the wire-bundle 4.
Further, the inner side of the cover plate 320 (a side of the cover plate 320 facing towards the wire-bundle receiving slot 30, i.e., an opposite direction to direction Z shown in
In an embodiment, one or more protrusions 326 can be provided along a width direction of the wire-bundle receiving slot 30. When more than one protrusions 326 are provided, each protrusion 326 has a height gradually increasing along a direction from the middle portion to both ends of the cover plate 320, thereby maintaining each protrusion 326 in contact with the wire-bundle 4.
In an embodiment, a side of the protrusion 326 facing away from the cover plate 320 can have either a planar surface or a concave surface. The concave surface is preferable, which increases a contact area between the protrusion 326 and the wire-bundle 4, thereby increasing the fixation reliability of the wire-bundle 4. The side of the protrusion 326 may be provided with a slip-proof notch for preventing the wire-bundle 4 from slipping.
Further, when only one protrusion 326 is provided along the width direction of the wire-bundle receiving slot 30, the middle portion of the protrusion 326 is provided with a groove 326a. The groove 326a extends over the length of the wire-bundle receiving slot 30 (along the direction X shown in the figures) and passes through the protrusion 326. The presence of the groove 326a produces two locking feet 326b that are separated on the protrusion 326. The two locking feet 326b fix the wire-bundle 4 respectively at two sides of the wire-bundle 4. In this way, the wire-bundle 4 is prevented from moving laterally and detaching from the protrusion 326, and the contact area between the protrusion 326 and the wire-bundle 4 is also increased, thereby enhancing the fixation reliability.
The groove 326a can have a cross-section of any shape such as an arcuate cross-section, a polyline cross-section, etc., and in the present embodiment, merely the arcuate cross-section is described in details as an example. For example, an inner diameter of the groove 326a is not larger than the outer diameter of the wire-bundle 4, so that the protrusion 326 can tightly press against the wire-bundle 4 with the locking feet 326b. It should be understood that the inner diameter of the groove 326a can also be larger than the outer diameter of the wire-bundle 4, in which the protrusion 326 tightly presses against the wire-bundle 4 through the bottom of the groove 326a.
Further, the above-mentioned buckling portion 324 includes an extending section 324a and a first buckling section 324b, and the second side wall 302 is provided with a second buckling section 302a. The first buckling section 324b matches and is buckled on the second buckling section 302a. The extending section 324a extends in a direction facing towards the inner side of the cover plate 320 (the side of the cover plate 320 facing towards the wire-bundle receiving slot 30, i.e., the opposite direction of the direction Z shown in
The first buckling section 324b and the second buckling section 302a can be any structures that match each other, such as engaged protrusion and groove, or two connected protrusions. For example, the first buckling section 324b and the second buckling section 302a are two protrusions that are connected to each other, so as to avoid a groove structure in the buckling portion 324 or in the second side wall 302 that may weaken their strength.
When the first buckling section 324b and the second buckling section 302a are protrusions, a side of the first buckling section 324b facing towards the cover plate 320 is in contact with a side of the second buckling section facing away from the cover plate 320. The side of the first buckling section 324b facing away from the cover plate 320 and/or the side of the second buckling section 302a facing towards the cover plate 320 can be provided with a buckling guidance surface, for example, an oblique surface or an arcuate surface, in order to facilitate the buckling between the first buckling section 324b and the second buckling section 302a and reduce the force required for buckling the clasp part 32.
In an embodiment, a length of the extending section 324a is approximately a half of the slot depth of the wire-bundle receiving slot 30. In this way, the fixation thereof is reliable and difficult to loosen. When the length of the extending section 324a is larger than the half of the slot depth of the wire-bundle receiving slot 30, the extending section 324a has a relatively high elasticity and thus is likely to be detached. When the length of the extending section 324a is smaller than the half of the slot depth of the wire-bundle receiving slot 30, the extending section 324a has a relatively low elasticity and thus a brittle fracture of the extending section 324a may occur during the buckling.
Further, the wire-bundle receiving bracket provided by the present disclosure further includes a baffle 34. The baffle 34 has two opposite ends, i.e., a first end 340 and a second end 342. The first end 340 is fixed to the first side wall 300 or the second side wall 302, and the second end 342 is provided with a mounting notch 344. The wire-bundle 4 can be installed into the wire-bundle receiving slot 30 through the mounting notch 344, and the baffle 34 can pre-fix the wire-bundle 4, thereby preventing the wire-bundle 4 from detaching from the wire-bundle receiving slot 30 during the buckling process of the clasp part 32.
In an embodiment, the baffle 34 can be disposed between two adjacent clasp parts 32, so as to prolong the possible distance between adjacent clasp parts 32, and thus further reducing the number of the clasp parts 32.
The above-described embodiments are merely preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Various changes and variations can be made to the present disclosure by those skilled in the art. However, any modifications, equivalent substitutions and improvements made within the principle of the present disclosure shall fall into the protection scope of the present disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201920240599.4 | Feb 2019 | CN | national |
