CN220456595U

CN220456595U - Wire harness isolation assembly and battery module

Info

Publication number: CN220456595U
Application number: CN202321973331.4U
Authority: CN
Inventors: 胡云锋; 王尧炜; 曹楷; 曹辉
Original assignee: Shanghai Ruipu Energy Co Ltd
Current assignee: Shanghai Ruipu Energy Co Ltd
Priority date: 2023-07-25
Filing date: 2023-07-25
Publication date: 2024-02-06
Anticipated expiration: 2033-07-25

Abstract

The utility model discloses a wire harness isolation assembly and a battery module, and relates to the technical field of batteries, wherein the assembly comprises a flexible circuit board, a fixed plate and a battery isolation plate; wherein, the flexible circuit board is provided with a first via hole; the fixing plate is attached to the flexible circuit board; the battery isolation board is attached to one side, far away from the fixing board, of the flexible circuit board, fixing protrusions are arranged on the surface of the battery isolation board, penetrate through the first through holes and are detachably connected with the fixing board, and therefore the flexible circuit board is fixed on the battery isolation board. The fixing plate is arranged on the flexible circuit board, and the fixing protrusion on the battery isolation plate penetrates through the flexible circuit board and is detachably connected with the fixing plate, so that the flexible circuit board is convenient to install and detach, and the flexible circuit board is prevented from tilting at the edge of the mounting hole on the premise that the circuit layout of the flexible circuit board is not affected.

Description

Wire harness isolation assembly and battery module

Technical Field

The utility model relates to the technical field of batteries, in particular to a wire harness isolation assembly and a battery module.

Background

Energy conservation and emission reduction are key to sustainable development of the automobile industry, and electric vehicles become an important component of sustainable development of the automobile industry due to the energy conservation and environmental protection advantages, so that battery technology is an important factor related to the development of the electric vehicles.

In the related art, an FPC (flexible circuit board) integrated assembly for a power battery, in which collection of current and voltage and collection of temperature are integrated, is widely used in a battery module. To prevent the FPC from moving or tilting, a practitioner secures the FPC to the spacer. At present, the common FPC fixing mode is hot riveting column fixing, but the hot melting mushroom head needs to be sheared off when the FPC is detached by the method, and the FPC is difficult to recycle. And the FPC may be damaged during the assembly of the FPC, so that the hole edge of the FPC is tilted outwards, and the circuit layout of the FPC is even affected.

Disclosure of Invention

To the FPC's among the prior art during assembly probably can cause the damage to FPC to make FPC's hole edge take place perk or the phenomenon of turning up, influence FPC circuit layout even, this application provides a pencil isolation component, it includes: a flexible circuit board, a fixing plate and a battery separator; wherein,

the flexible circuit board is provided with a first via hole;

the fixing plate is attached to one side of the flexible circuit board;

the battery isolation board is attached to one side, far away from the fixing board, of the flexible circuit board, fixing protrusions are arranged on the surface of the battery isolation board, penetrate through the first through holes and are detachably connected with the fixing board, and therefore the flexible circuit board is fixed on the battery isolation board.

In some embodiments, the fixing plate is provided with a second via hole, and the second via hole is in interference fit with the fixing protrusion.

In some embodiments, the second via corresponds to the first via, the second via has a smaller aperture than the first via, and the first via is in clearance fit with the fixing protrusion.

In some embodiments, the fixing protrusion includes:

a column part assembled on the battery separator;

and the shrinkage part is arranged on the column body part and can be in interference fit with the second via hole through shrinkage.

In some embodiments, the constriction comprises: a plurality of protruding parts which are arranged at intervals along the edge of the column part and can deform in a direction approaching to the central axis of the column part

In some embodiments, the tip of the protruding portion extends along the axial direction of the column portion and extends out of the second via hole, and a flange portion is disposed at the tip of the protruding portion and is in press fit with a side, away from the flexible circuit board, of the fixing plate.

In some embodiments, the constriction is made of an elastic material.

In some embodiments, the fixing plate is provided with a threaded hole, the fixing protrusion is provided with external threads, and the fixing protrusion is in threaded connection with the fixing plate.

In some embodiments, the fixing protrusion penetrates through the first via hole and extends out of the fixing plate, an external thread is arranged at the end, beyond the fixing plate, of the fixing protrusion, a compression nut is arranged on the surface of the fixing plate, and the compression nut is in threaded connection with the end of the fixing protrusion.

In another aspect, the present application provides a battery module, comprising: the wire harness insulation assembly of any one of the preceding claims.

Therefore, the fixing plate is arranged on the flexible circuit board, and the fixing protrusions on the battery isolating plate penetrate through the flexible circuit board and are detachably connected with the fixing plate, so that the flexible circuit board (FPC) is convenient to mount and dismount, and the flexible circuit board can be prevented from being tilted at the edge of the mounting hole on the premise that the circuit layout of the flexible circuit board is not affected.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a partial structure of a battery cell according to an embodiment of the present utility model;

FIG. 2 is a schematic view showing the structure of a fixing protrusion according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a wire harness isolation assembly according to an embodiment of the present utility model.

In the figure: 1. a flexible circuit board; 2. a fixing plate; 3. a battery separator; 4. a fixing protrusion; 41. a column portion; 42. a constriction; 421. a protruding portion; 422. and a flanging part.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings. To the FPC's among the prior art phenomenon that can cause the damage to FPC when assembling, make FPC's hole edge take place perk or evert, influence FPC circuit layout even, this application provides a pencil isolation component, it includes: a flexible circuit board 1, a fixing plate 2 and a battery separator 3; wherein,

the flexible circuit board 1 is provided with a first via hole. The fixing plate 2 is attached to one side of the flexible circuit board 1. The battery isolation board 3 is attached to one side, far away from the fixed board 2, of the flexible circuit board 1, a fixing protrusion 4 is arranged on the surface of the battery isolation board 3, and the fixing protrusion 4 penetrates through the first through hole and is detachably connected with the fixed board 2, so that the flexible circuit board 1 is fixed on the battery isolation board 3.

The specific implementation manner of the battery isolation board 3 with the fixing protrusion 4 on the surface is not limited, for example, the battery isolation board 3 and the fixing protrusion 4 may be integrally provided or may be separately provided, the battery isolation board 3 and the fixing protrusion 4 may be detachably connected or may be fixedly connected, and the embodiment of the application is not limited thereto.

It should be noted that, when the flexible circuit board 1 is larger, the edge of the first via hole of the flexible circuit board 1 may lift up and interfere with the upper cover. If the fixing points are simply added to prevent the flexible circuit board 1 from tilting, the circuit layout of the flexible circuit board 1 may be affected. To solve this problem, the present application provides a fixing plate 2 on a flexible circuit board 1 and detachably connects the fixing plate 2 with the flexible circuit board 1 to clamp and fix the flexible circuit board 1 located in the middle of the fixing plate 2 and a battery separator 3. Thus, the area of the clamping surface of the fixing plate 2 can be enlarged as required to prevent the flexible circuit board 1 from tilting at the edge position of the first via hole, and the circuit layout of the flexible circuit board 1 is not affected.

In some specific embodiments, for easy assembly and fixing, the fixing plate 2 is provided with a second via hole, and the second via hole is in interference fit with the fixing protrusion 4 to complete fixing.

Preferably, the second via hole corresponds to the first via hole, the aperture of the second via hole is smaller than that of the first via hole, and the first via hole is in clearance fit with the fixing protrusion 4.

It can be appreciated that in the assembly process of the flexible circuit board 1 and the battery isolation board 3 in the related art, the heat rivet column is easy to damage the flexible circuit board 1, but in the scheme of the application, the first through hole is in clearance fit with the fixing protrusion 4, the fixing protrusion 4 passes through the first through hole of the flexible circuit board 1 first, then passes through the second through hole and is fixedly connected with the fixing board 2, since the fixing board 2 is larger than the first through hole, the first through hole is larger than the second through hole, and the first through hole is in clearance fit with the fixing protrusion 4, in the whole assembly process, the fixing protrusion 4 can not collide with the flexible circuit board 1, and the situation of naturally damaging the flexible circuit board 1 is solved.

In some embodiments, in order to facilitate the assembly or disassembly of the flexible circuit board 1 by an operator using the fixing protrusion 4, the fixing protrusion 4 includes: a column portion 41 and a constricted portion 42; wherein,

the column portion 41 is assembled to the battery separator 3. A constriction 42 is provided on the pillar 41, the constriction 42 being in an interference fit with the second via by constriction.

When in use, the shrinkage part 42 is extruded to shrink the volume, and then the shrinkage part 42 is stretched into the second via hole and the shrinkage part 42 is loosened, at this time, the shrinkage part 42 has a tendency of returning to an initial state and is in interference fit with the second via hole.

Specifically, as shown in fig. 2, the constriction 42 includes: the plurality of protruding portions 421 are provided at intervals along the edge of the column portion 41, and the protruding portions 421 are deformable in a direction approaching the central axis of the column portion 41. In the embodiments of the present application, a plurality refers to two or more. Optionally, the constriction 42 is made of an elastic material to facilitate the compression set. Illustratively, the constriction 42 comprises 4 protrusions 421,4 protrusions 421 equally spaced apart in the rest state, symmetrically arranged on the cylindrical portion 41. In other possible embodiments, the number of the protrusions 421 may be 2, 3, 5, 6, etc., which is not particularly limited in the embodiment of the present application.

In use, the operator squeezes the plurality of protrusions 421 to bring the plurality of protrusions 421 closer together to reduce the axial cross-sectional area so that the protrusions 421 can pass through the second via.

Preferably, the tip of the protruding portion 421 extends along the axial direction of the column portion 41 and protrudes out of the second via hole, the tip of the protruding portion 421 is provided with a flange portion 422, and the flange portion 422 is press-fitted with the side of the fixing board 2 away from the flexible circuit board 1.

It can be appreciated that when the operator releases the protruding portion 421, the protruding portion 421 returns to the initial position, and the surface of the flange portion 422 near the column portion 41 abuts against the surface of the fixing plate 2 away from the flexible circuit board, so that the assembly of the flexible circuit board 1 is completed more simply.

When an operator installs the flexible circuit board 1 by using the wire harness isolation assembly, the fixing protrusion 4 is firstly passed through the first through hole of the flexible circuit board 1 to realize preliminary fixing, then the shrinkage part 42 of the fixing protrusion 4 is manually extruded, and the shrinkage part 42 is passed through the second through hole to realize interference fit between the shrinkage part 42 and the second through hole. Further, the constriction 42 is passed through the second via hole, and the constriction 42 is released, so that the constriction 42 presses the fixing plate 2 to complete the fixing.

When the operator dismantles the flexible circuit board 1, only the contraction part 42 is needed to be extruded, and then the fixing plate 2 is lifted slightly until the contraction part 42 passes through the second through hole, so that the fixing plate 2 can be dismounted. Then, the flexible circuit board 1 is lifted slightly until the shrinkage portion 42 passes through the first via hole, and the flexible circuit board 1 is detached. As can be seen from the above, the whole disassembly process is simple and the constriction 42 on the fixing projection 4 can be reused.

The application also provides a specific embodiment of the second wire harness isolation assembly, the fixing plate 2 is provided with a threaded hole, the fixing protrusion 4 is provided with external threads, and the fixing protrusion 4 is in threaded connection with the fixing plate 2. When in use, the fixing plate 2 is screwed tightly to finish the fixing.

Further, the fixing protrusion 4 is disposed through the first via hole and extends out of the fixing plate 2, an external thread is disposed at an end of the fixing protrusion 4 that protrudes out of the fixing plate 2, a compression nut is disposed on the surface of the fixing plate 2, and the compression nut is in threaded connection with the end of the fixing protrusion 4. When the fixing device is used, the compression nut is screwed down to complete fixing.

In another aspect, the present application also provides a battery module, which includes: such as any of the wire harness insulation assemblies described above.

To sum up, through set up the fixed plate on the flexible circuit board in this application pencil isolation assembly to pass the flexible circuit board and link to each other with fixed plate detachably through the fixed protrusion on the battery isolation board, both make flexible circuit board (FPC) installation dismantle portably, can prevent again that flexible circuit board from taking place to warp the phenomenon at the edge of its mounting hole under the prerequisite that does not influence flexible circuit board circuit layout.

In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description of the present application and simplification of the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

It should be noted that in this application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wire harness insulation assembly, comprising:

the flexible circuit board (1) is provided with a first via hole;

a fixing plate (2) attached to one side of the flexible circuit board (1);

the battery isolation board (3) is attached to one side, far away from the fixing board (2), of the flexible circuit board (1), fixing protrusions (4) are arranged on the surface of the battery isolation board (3), and the fixing protrusions (4) penetrate through the first through holes and are detachably connected with the fixing board (2) so as to fix the flexible circuit board (1) on the battery isolation board (3).

2. The wire harness isolation assembly of claim 1 wherein: the fixing plate (2) is provided with a second through hole, and the second through hole is in interference fit with the fixing protrusion (4).

3. The wire harness isolation assembly of claim 2 wherein: the second via hole corresponds to the first via hole, the aperture of the second via hole is smaller than that of the first via hole, and the first via hole is in clearance fit with the fixing protrusion (4).

4. A wire harness insulation assembly as claimed in claim 3, wherein the fixing projection (4) comprises:

a column part (41) assembled on the battery separator (3);

and the contraction part (42) is arranged on the column part (41), and the contraction part (42) can be in interference fit with the second via hole through contraction.

5. The wire harness insulation assembly of claim 4, wherein the constriction (42) comprises: and a plurality of protruding parts (421), wherein the protruding parts (421) are arranged at intervals along the edge of the column part (41), and the protruding parts (421) can deform in a direction approaching to the central axis of the column part (41).

6. The wire harness isolation assembly of claim 5, wherein: the tail end of the protruding portion (421) axially extends along the column portion (41) and protrudes out of the second through hole, a flanging portion (422) is arranged at the tail end of the protruding portion (421), and the flanging portion (422) is in press fit with one side, far away from the flexible circuit board (1), of the fixing plate (2).

7. The wire harness isolation assembly of claim 4, wherein: the constriction (42) is made of an elastic material.

8. The wire harness isolation assembly of claim 1 wherein: the fixing plate (2) is provided with a threaded hole, the fixing protrusion (4) is provided with external threads, and the fixing protrusion (4) is in threaded connection with the fixing plate (2).

9. The wire harness isolation assembly of claim 1 wherein: the fixing protrusion (4) penetrates through the first through hole and extends out of the fixing plate (2), an external thread is arranged at the tail end of the fixing protrusion (4) beyond the fixing plate (2), a compression nut is arranged on the surface of the fixing plate (2), and the compression nut is in threaded connection with the tail end of the fixing protrusion (4).

10. A battery module, characterized in that it comprises: the wire harness insulation assembly of any one of claims 1-9.