FPC acquisition plug-in fixing base, FPC acquisition structure, power battery module, battery pack and vehicle

Abstract

The utility model relates to an FPC acquisition plug-in fixing base, an FPC acquisition structure, a power battery module, a battery pack and a vehicle, the FPC acquisition plug-in fixing base is used for the power battery module, the power battery module comprises an end plate, the end plate is provided with a plurality of cavities which are through up and down, the FPC acquisition plug-in fixing base for the power battery module comprises a base body, and the base body is provided with a through hole. An inserting part is arranged at the bottom of the seat body and is inserted into the top position of one cavity of the end plate, and a thread bushing which is obliquely arranged is pre-embedded in the top of the seat body. The FPC acquisition plug-in fixing base provided by the utility model has the advantages of small occupied space, excellent assembly reliability and structural mechanical strength, simple structure and strong manufacturability, is especially suitable for manufacturing batch structural members, and can be introduced and considered as universal design in subsequent other similar modular designs.

Description

Technical Field

[0001] The utility model relates to the technical field of power batteries, in particular to an FPC acquisition plug fixing base, an FPC acquisition structure, a power battery module, a battery pack and a vehicle. Background Art

[0002] The traditional integration method of new energy vehicle power is CTM, that is, "Cell to Module", which represents an integration mode of integrating battery cells on a module. Its overall configuration method is: battery cell - module - PACK - vehicle installation. Among them, the module is a development path proposed due to different battery requirements for different vehicle models and different cell sizes of battery manufacturers, which helps to form economies of scale and product unification. Then, the parameters of the battery cells are collected through the acquisition wire harness or flexible printed circuit (FPC) connected to the pole columns between different modules for the whole package system to reference. Each module acquisition wire harness or FPC outputs alternating current in the form of a plug, and the plug requires structural support, which is affected by both the module acquisition form and the envelope boundary of the battery pack box.

[0003] Generally, a mature general mold - made part is used for the plug fixing base to save development costs. However, with the increasing demand for the envelope space of the battery pack and the increasing number of stacked battery cells, the edge space inside the whole package will be extremely limited, especially in the Z - direction space. On the one hand, the form of FPC acquisition is used instead of wire harness acquisition. On the other hand, the design of the corresponding plug fixing base is also optimized. Under the condition of meeting the plug limit, the outer dimensions of the fixing base that meet this limited internal space are designed as much as possible. Designing a structural part form that meets the conditions is one of the key technologies.

[0004] When the power battery modules are grouped, the preliminary module arrangement is first completed, and then the corresponding module end plates are designed. The acquisition outlet is often on one side of the end plate, and this position is generally close to the edge of the box. Currently, the general plug fixing base usually mainly relies on the upper surface of the end plate as the main support surface, and the plug is stuck in the upper position of the fixing base after coming out from the upper edge of the module. The premise of this method is that there is sufficient space in both the horizontal and height directions inside the box. However, if the space given by the vehicle frame is insufficient, as Figure 1 shown, when the peripheral space of the battery pack envelope does not allow, the above - mentioned general plug fixing base design cannot meet the installation requirements. Summary of the Utility Model

[0005] Based on this, in view of the technical problem that the fixed base of the current plug-in usually mainly relies on the upper surface of the end plate as the main supporting surface, and the plug-in is stuck at the upper position of the fixed seat after coming out from the upper edge of the module. If the peripheral space around the battery pack envelope does not allow, it will cause the general plug-in fixed base to not meet the installation requirements, the present utility model provides an FPC acquisition plug-in fixed base, an FPC acquisition structure, a power battery module, a battery pack, and a vehicle.

[0006] An FPC acquisition plug-in fixed base provided by the present utility model is used for a power battery module. The power battery module includes an end plate, and the end plate has a plurality of cavities that penetrate up and down. The FPC acquisition plug-in fixed base for the power battery module includes a seat body. An insertion part is arranged at the bottom of the seat body, and the insertion part is inserted at the top position of one of the cavities of the end plate. A thread sleeve arranged obliquely is embedded at the top of the seat body.

[0007] The FPC acquisition plug-in fixed base proposed by the present utility model has a simple structure, small occupied space, excellent assembly reliability and structural mechanical strength, and strong manufacturability. It is particularly suitable for the production of batch structural parts. At the same time, in subsequent other similar modular designs, it can be considered as a general design reference.

[0008] As a further improvement of the above solution of the present utility model, at least one side surface of the insertion part is provided with a cylindrical pin, and at least one side wall top position of the cavity is provided with a first clamping hole adapted to the cylindrical pin. At least one cylindrical pin is respectively clamped in at least one first clamping hole.

[0009] As a further improvement of the above solution of the present utility model, pre-embedded parts are integrally formed at both ends of the top of the seat body. The pre-embedded parts have a triangular cross-section. Thread sleeves are embedded in both pre-embedded parts, and the openings of the two thread sleeves face the same direction. The side surface of the pre-embedded part close to the opening end of the thread sleeve forms a supporting surface.

[0010] As a further improvement of the above solution of the present utility model, a reinforcing rib connecting the two pre-embedded parts is integrally formed at the top of the seat body. The overall strength of the FPC acquisition plug-in fixed base is improved, and the assembly reliability is improved.

[0011] As a further improvement of the above solution of the present utility model, the seat body is integrally injection-molded. The injection process is adopted for batch manufacturing, which is more cost-effective.

[0012] An FPC acquisition structure proposed by the present utility model includes an FPC board and a plug-in. An output end is arranged at one end of the FPC board. The FPC acquisition structure further includes an epoxy board, a bolt, and the FPC acquisition plug-in fixed base as described above. The plug-in, the output end of the FPC board, the epoxy board, and the seat body are arranged from top to bottom in sequence. The plug-in, the output end of the FPC board, and the epoxy board are connected in sequence. The bolt penetrates through the epoxy board and is in threaded fit connection with the thread sleeve of the seat body.

[0013] As a further improvement of the above solution of the present utility model, at least one clamping portion is provided on one side of the plug facing the epoxy board. At least one second clamping hole is formed in the output end of the FPC board, and at least one third clamping hole is formed in the epoxy board. The clamping portion, the second clamping hole, and the third clamping hole are arranged in one-to-one correspondence, and the clamping portion sequentially passes through and is clamped in the second clamping hole and the third clamping hole.

[0014] A power battery module proposed by the present utility model includes the FPC acquisition structure as described above.

[0015] A battery pack proposed by the present utility model includes the power battery module as described above.

[0016] A vehicle proposed by the present utility model includes the battery pack as described above.

[0017] Compared with the prior art, the present utility model has the following beneficial effects:

[0018] The FPC acquisition plug fixing base proposed by the present utility model has a simple structure, small occupied space, excellent assembly reliability performance and structural mechanical strength, and strong manufacturability. It is particularly suitable for the production of batch structural parts. At the same time, in subsequent other similar modular designs, it can be considered as a general design reference. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the structure of the existing battery pack;

[0020] Figure 2 It is a schematic diagram of the structure of an FPC acquisition plug fixing base proposed by an embodiment of the present utility model;

[0021] Figure 3 It is Figure 2 Another perspective view of

[0022] Figure 4 It is a schematic diagram of the structure of a power battery module proposed by an embodiment of the present utility model;

[0023] Figure 5 It is an exploded view of a power battery module proposed by an embodiment of the present utility model;

[0024] Figure 6 It is a schematic diagram of the structure of an end plate in a power battery module proposed by an embodiment of the present utility model;

[0025] Figure 7 It is a schematic diagram of the structure of a plug in a power battery module proposed by an embodiment of the present utility model.

[0026] Reference numerals: 1, end plate; 11, cavity; 12, first card hole; 2, seat body; 21, insertion part; 22, threaded sleeve; 23, cylindrical pin; 24, embedded part; 25, support surface; 26, reinforcing rib; 3, FPC board; 31, output end; 32, second card hole; 4, plug-in; 41, clamping part; 5, epoxy board; 6, bolt; 7, module. Detailed implementation manners

[0027] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below in conjunction with specific embodiments. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0029] Referring to Figure 2 、 Figure 3 , in this embodiment, a fixing base for an FPC acquisition plug-in is first proposed, which includes a seat body 2. The seat body 2 is generally in a cuboid structure as a whole. An insertion part 21 is integrally formed at the bottom of the seat body 2, and the insertion part 21 can be provided with a hollow to reduce the overall weight. Cylindrical pins 23 are integrally formed on both side surfaces of the insertion part 21 located on both sides in the length direction of the seat body 2. Embedded parts 24 are integrally formed at both ends in the length direction of the top surface of the seat body 2, and the embedded parts 24 are structures with a triangular cross-section. Of course, in other embodiments, as long as the installation requirements of the plug-in 4 are met, the embedded parts 24 can also be other shaped structures. Threaded sleeves 22 are injection-molded and embedded in both embedded parts 24 in an inclined manner, the open ends of the threaded sleeves 22 are arranged upward, and the threaded sleeves 22 are made of copper material to improve the service life. The positions of the embedded parts 24 below the threaded sleeves 22 can be provided with a hollow to reduce the overall weight. The side surface of the embedded part 24 close to the open end of the threaded sleeve 22 forms a support surface 25. To improve the overall strength of the seat body 2, a reinforcing rib 26 connected to the two embedded parts 24 is also integrally formed at the position between the two embedded parts 24 on the top surface of the seat body 2.

[0030] The fixing base for the FPC acquisition plug-in of this embodiment occupies a small space, has excellent assembly reliability and structural mechanical strength, has a simple structure, strong manufacturing feasibility, and moreover, the subsequent mass production adopts an injection molding process, which is more cost-effective. At the same time, in subsequent other similar modular designs, it can be considered as a general design reference.

[0031] Referring to Figure 4 、Figure 5 Based on the above FPC acquisition plug fixing base, in this embodiment, a power battery module is further proposed. The power battery module includes a module 7, end plates 1 located at both ends of the module, and an FPC acquisition structure. The FPC acquisition structure includes an FPC board 3, two plugs 4, two epoxy boards 5, four bolts 6, and two of the above FPC acquisition plug fixing bases.

[0032] Both of the two end plates 1 have a number of cavities 11 that penetrate up and down. In this embodiment, in combination with Figure 6 , two cavities 11 of one of the end plates 1 are selected. The distance between the two cavities 11 is adapted to the distance between two output terminals 31 on the FPC board 3. On the inner and outer sides of the tops of the two cavities 11, first clamping holes 12 are opened. The aperture of the first clamping holes 12 is adapted to the diameter of the cylindrical clamping pins 23.

[0033] The insertion parts 21 of the two FPC acquisition plug fixing bases are respectively inserted into the tops of the two selected cavities 11, and the cylindrical clamping pins 23 on the front and rear sides of the insertion parts 21 are respectively clamped in the two first clamping holes 12 of the corresponding cavities 11.

[0034] The two epoxy boards 5 are respectively attached to the supporting surfaces 25 of the two seat bodies 2. Two third clamping holes are penetrated through both of the two epoxy boards 5, and two assembly holes are also penetrated through each epoxy board 5. The distance between the two assembly holes is the same as the distance between the two threaded sleeves 22 on the seat body 2. The two assembly holes of the epoxy board 5 are respectively correspondingly communicated with the two threaded sleeves 22 of the corresponding seat body 2. The four bolts 6 respectively pass through the four assembly holes and are respectively in threaded fit connection with the four threaded sleeves 22.

[0035] The FPC board 3 is arranged above the module. The FPC board 3 adopts the prior art. One end of the FPC board 3 is provided with two output terminals 31, and the two output terminals 31 are respectively attached to the two epoxy boards 5. Two second clamping holes 32 are penetrated through each of the output terminals 31. The two second clamping holes 32 of the output terminal 31 are respectively correspondingly communicated with the two third clamping holes of the corresponding epoxy board 5.

[0036] The two plugs 4 are respectively arranged corresponding to the two output terminals 31. In combination with Figure 7 , on the side of the plug 4 facing the output terminal 31, two clamping parts 41 are provided. After the two clamping parts 41 of the plug 4 penetrate through the two second clamping holes 32 of the corresponding output terminal 31, they then penetrate and are clamped in the two third clamping holes of the corresponding epoxy board 5, so that the plug 4, the output terminal 31, and the epoxy board 5 are connected as a whole.

[0037] The FPC acquisition plug fixing base of this embodiment solves the assembly problem of the module output plug 4 in a limited space, makes full use of the edge envelope space of the module, improves the compactness of the internal structural parts of the battery pack box body, can be reused, has reliable assembly, strong manufacturability, high cost performance, and can be mass-produced through the injection molding process.

[0038] It should be noted that when a component is referred to as "mounted on" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component at the same time. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or there may be an intermediate component at the same time.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0040] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0041] The above-described embodiments only represent several implementation manners of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of this utility model, several modifications and improvements can still be made, and these all belong to the protection scope of this utility model. Therefore, the protection scope of this utility model patent shall be subject to the appended claims.

Claims

1. An FPC acquisition plug-in fixing base, which is used for a power battery module. The power battery module includes an end plate (1), and the end plate (1) has a plurality of cavities (11) that penetrate up and down. It is characterized in that, The FPC acquisition plug-in (4) fixing base for the power battery module includes a base body (2). A plug-in part (21) is arranged at the bottom of the base body (2), and the plug-in part (21) is plugged at the top position of one of the cavities (11) of the end plate (1). A thread sleeve (22) arranged obliquely is embedded at the top of the base body (2).

2. The FPC acquisition plug-in fixing base according to claim 1, characterized in that At least one side surface of the plug-in part (21) is provided with a cylindrical pin (23). At the top position of at least one side wall of the cavity (11), a first clamping hole (12) adapted to the cylindrical pin (23) is provided. At least one cylindrical pin (23) is respectively clamped in at least one first clamping hole (12).

3. The FPC acquisition plug-in fixing base according to claim 1, characterized in that, At both ends of the top of the base body (2), pre-embedded parts (24) are integrally formed. The pre-embedded parts (24) have a triangular cross-section. Thread sleeves (22) are embedded in both pre-embedded parts (24), and the openings of the two thread sleeves (22) face the same direction. A support surface (25) is formed on the side surface of the pre-embedded part (24) close to the opening end of the thread sleeve (22).

4. The FPC acquisition plug-in fixed base according to claim 3, characterized in that A reinforcing rib (26) connected to the two pre-embedded parts (24) is integrally formed at the top of the base body (2).

5. The FPC acquisition plug-in fixing base according to claim 1, characterized in that The base body (2) is integrally injection-molded.

6. An FPC acquisition structure, which includes an FPC board (3) and a plug-in (4). One end of the FPC board (3) is provided with an output end (31), and it is characterized in that, The FPC acquisition structure further includes an epoxy board (5), a bolt (6), and the FPC acquisition plug-in fixing base according to any one of claims 1-5. The plug-in (4), the output end (31) of the FPC board (3), the epoxy board (5), and the base body (2) are arranged in sequence from top to bottom. The plug-in (4), the output end (31) of the FPC board (3), and the epoxy board (5) are connected in sequence. The bolt (6) penetrates through the epoxy board (5) and is in threaded fit connection with the thread sleeve (22) of the base body (2).

7. The FPC acquisition structure according to claim 6, characterized in that, At least one clamping part (41) is arranged on the side of the plug-in (4) facing the epoxy board (5). At least one second clamping hole (32) is formed in the output end (31) of the FPC board (3). At least one third clamping hole is formed in the epoxy board (5). The clamping part (41), the second clamping hole (32), and the third clamping hole are arranged in one-to-one correspondence, and the clamping part (41) sequentially passes through and is clamped in the second clamping hole (32) and the third clamping hole.

8. A power battery module, characterized in that, It includes the FPC acquisition structure according to claim 6 or 7.

9. A battery pack, characterized in that, It includes the power battery module according to claim 8.

10. A vehicle, characterized in that, It includes the battery pack according to claim 9.

Images