Transition piece for battery module and battery module

Abstract

The utility model discloses a battery module and transition piece for battery module, the battery module includes battery cell group, end plate and integrated busbar, the transition piece is detachably installed on the end plate, the transition piece includes: the first accommodation groove is used for accommodating the communication interface of integrated busbar, and the first accommodation groove is used for accommodating the communication interface of integrated busbar. The first accommodating groove is provided with a first fixing structure for fixing the communication interface; the second accommodating groove is used for accommodating an aluminum bar of the integrated busbar, and the second accommodating groove is provided with a limiting structure for limiting the aluminum bar; and the second fixing structure is used for detachably connecting the transition piece and the end plate. The battery module mounting structure solves the problems that an existing battery module mounting structure is poor in positioning precision and inconvenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of battery modules, and in particular to a transition piece used for a battery module and a battery module. Background Art

[0002] Battery grouping refers to the combination of many battery cells or multiple battery cells in series and / or in parallel through connecting elements to form a battery pack with a larger capacity, also known as a battery module. An integrated busbar is usually set on the side of the battery module to connect the battery cells in series and in parallel and collect relevant information of the battery cells. The existing integrated busbar usually includes an FPC, and a communication interface is set at the end of the FPC. The FPC, communication interface and aluminum busbar at the end of the integrated busbar are directly fixed to the end plate of the battery module. The installation and positioning accuracy of the structure is poor, and installation and disassembly are inconvenient. Utility Model Content

[0003] The main purpose of the utility model is to provide a transition piece for a battery module and a battery module, aiming to solve the problems of poor positioning accuracy and inconvenient installation and disassembly of the existing battery module installation structure.

[0004] To achieve the above-mentioned purpose, the utility model proposes a transition piece for a battery module, the battery module comprises a battery cell group, an end plate and an integrated busbar, the transition piece can be detachably mounted on the end plate, and the transition piece comprises:

[0005] A first accommodating groove, used to accommodate the communication interface of the integrated busbar, wherein the first accommodating groove is provided with a first fixing structure for fixing the communication interface;

[0006] A second accommodating groove is used to accommodate the aluminum bar of the integrated busbar, and the second accommodating groove is provided with a limiting structure for limiting the aluminum bar;

[0007] The second fixing structure is used for detachable connection between the transition piece and the end plate.

[0008] Optionally, the communication interface is mounted on a fixed plate, and a support platform is respectively provided at both ends of the first accommodating groove, and both ends of the fixed plate are respectively mounted on the support platforms.

[0009] Optionally, the fixing structure is configured as a first fixing hole opened on the support platform, the fixing plate is provided with a first docking hole docking with the first fixing hole, and the first fixing hole and the first docking hole are connected by a fixing member.

[0010] Optionally, the first limiting structure is configured as a plurality of reinforcing ribs integrally formed with the transition piece, and the plurality of reinforcing ribs are symmetrically arranged on both sides of the aluminum bar.

[0011] Optionally, a gap is provided between the reinforcing rib and the aluminum row.

[0012] Optionally, the end of the reinforcing rib is provided with a guiding slope for guiding the installation of the aluminum bar.

[0013] Optionally, the third fixing member is configured as a snap-fit ​​structure, and the end plate is provided with a clamping platform that is clamped with the snap-fit ​​structure.

[0014] Optionally, the third fixing member is provided in plurality, and the plurality of the third fixing members are arranged along the length direction of the transition member.

[0015] Optionally, the transition piece is configured as an integrally-molded plastic structure.

[0016] To achieve the above objectives, the utility model also provides a battery module, comprising any of the transition pieces described above.

[0017] The beneficial effects of the utility model are: improving the connection structure of the existing battery module, a transition piece can be detachably installed on the end plate of the battery module, and an accommodation space for installing a communication interface and an aluminum busbar is provided on the transition piece, so as to effectively position the integrated busbar and ensure its installation stability, so as to facilitate subsequent precise welding between the aluminum busbar of the integrated busbar and the battery cells of the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure of the transition piece of the utility model;

[0020] Figure 2 This is a schematic diagram of the integrated busbar structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the installation structure of the transition piece of the utility model;

[0022] Figure 4 This is a schematic diagram of the battery module structure of the utility model;

[0023] Description of Figure Numbers:

[0024] Transition component 1; first accommodating groove 11; first fixing hole 111; support platform 112; second accommodating groove 12; reinforcing rib 121; guide inclined surface 122; buckle structure 13;

[0025] Battery cell group 2; end plate 3; card table 31;

[0026] Integrated busbar 4; communication interface 41; aluminum busbar 42; fixing plate 43; first docking hole 431;

[0027] Rivet 5;

[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0032] An embodiment of the present invention provides a transition piece for a battery module, referring to Figure 3 and Figure 4 The battery module includes a battery cell group 2, an end plate 3 and an integrated busbar 4. The transition piece 1 can be detachably mounted on the end plate 3. Figure 1 , the transition piece 1 comprises:

[0033] The first accommodating groove 11 is used to accommodate the communication interface 41 of the integrated busbar 4. The first accommodating groove 11 is provided with a first fixing structure for fixing the communication interface 41;

[0034] The second accommodating groove 12 is used to accommodate the aluminum bar 42 of the integrated busbar 4. The second accommodating groove 42 is provided with a limiting structure for limiting the aluminum bar 42;

[0035] The second fixing structure is used for detachable connection between the transition piece 1 and the end plate 3 .

[0036] It should be noted that, in this embodiment, a transition piece 1 is provided, and the communication interface 41 and the aluminum bar 42 of the integrated busbar 4 are respectively installed in the first accommodating groove 11 and the second accommodating groove 12 of the transition piece 1, so as to effectively position them, and then they are fixed and limited by the first fixing structure and the limiting structure respectively to ensure the stability of their installation. This structure can effectively position and limit the integrated busbar 4 in advance, thereby improving the accuracy of its installation, facilitating the subsequent accurate welding between the aluminum bar 42 of the integrated busbar 4 and the battery cell group 2, and ensuring the overall structural accuracy and stability requirements of the battery pack.

[0037] Further, refer to Figure 1 and Figure 2 , the communication interface 41 is installed on a fixing plate 43, and a support platform 112 is respectively provided at both ends of the first receiving groove 11, and both ends of the fixing plate 43 are respectively mounted on the support platforms 112. It should be noted that in the prior art, the communication interface 41 is usually connected to the FPC end of the integrated busbar 4. In this embodiment, in order to prevent the communication interface 41 from damaging the FPC during installation, the communication interface 41 is installed on a fixing plate 43. When the communication interface 41 is installed, the fixing plate 43 is directly mounted and fixed on the two support platforms 112, so that the communication interface 41 can be accommodated in the first receiving groove 11, which is simple to operate and has a stable structure.

[0038] Further, the first fixing structure is configured as a first fixing hole 111 opened on the support platform 112, and a first docking hole 431 docking with the first fixing hole 111 is opened on the fixing plate 43, and the first fixing hole 111 and the first docking hole 431 are connected by a fixing member. In this embodiment, the first fixing hole 111 and the first docking hole 431 are configured as through-hole structures, and the fixing member is configured as a rivet 5, which directly passes through the first fixing hole 111 and the first docking hole 431 for riveting, and the first fixing hole 111 and the first docking hole 431 are connected, which can ensure the stability of the connection structure, facilitate installation and disassembly, and at the same time, effectively position the communication interface 41, thereby further realizing the positioning of the integrated busbar 4.

[0039] Furthermore, the first limiting structure is configured as a plurality of reinforcing ribs 121 integrally formed with the transition piece 1, and the plurality of reinforcing ribs 121 are symmetrically arranged on both sides of the aluminum bar 42. In this embodiment, in order to prevent the aluminum bar 42 from shaking greatly in the second receiving groove 12, a limiting structure is provided in the second receiving groove 12 to effectively limit it and ensure its stability. In this embodiment, the limiting structure is configured as a plurality of reinforcing ribs 121 integrally formed with the transition piece 1, and the structural design is simple, which simplifies the manufacturing process. Moreover, a gap is provided between the reinforcing ribs 121 and the aluminum bar 42 to prevent the aluminum bar from getting stuck during installation. Specifically, the gap is set to 0.8 mm to 1.2 mm, which ensures that the aluminum bar 42 is effectively limited while being conveniently installed in the second receiving groove 12.

[0040] Furthermore, the end of the reinforcing rib 121 is provided with a guiding slope 122 for guiding the installation of the aluminum bar 42. When the aluminum bar 42 is installed, it can be installed between the reinforcing ribs 121 along the guiding slope at the end of the reinforcing rib 121, thereby effectively guiding the aluminum bar 42 and facilitating installation.

[0041] Furthermore, the third fixing member is configured as a buckle structure 13, and the end plate 3 is provided with a clamping platform 31 clamped with the buckle structure 13. In this embodiment, the buckle structure 13 is configured as an elastic force arm, and a buckle is provided at the end of the elastic force arm, and the corresponding end plate 3 is provided with a through hole for the elastic force arm to pass through, and a clamping platform 31 clamped with the buckle is provided below the through hole. When installing the transition piece 1, it is only necessary to insert the elastic force arm into the through hole to realize the clamping connection between the buckle and the clamping platform 31, which is simple and convenient to operate and has strong stability. When disassembling, it is only necessary to manually move the elastic force arm to contact the clamping connection between the buckle and the clamping platform 31, and the transition piece 1 can be removed from the end plate 3, which is convenient to operate.

[0042] Furthermore, the third fixing members are provided in plurality, and the plurality of third fixing members are arranged along the length direction of the transition member 1. In this embodiment, three third fixing members are provided to ensure uniform and stable force between the transition member 1 and the end plate 3, and further improve the installation stability of the transition member 1.

[0043] Furthermore, the transition piece 1 is configured as an integrally molded plastic structure. In the present embodiment, the transition piece 1 is an integral structure made of ABS+PC materials, which has low cost and stable structure.

[0044] The transition piece 1 of this embodiment realizes the intermediate transition from the components of the integrated busbar 4 to the battery module end plate 3, so that the stability of the structure is enhanced. In the subsequent welding process, this structure increases the welding accuracy.

[0045] Another embodiment of the utility model also provides a battery module, including any of the above-mentioned transition pieces 1. Since the battery module provided in this embodiment includes all solutions of all embodiments of the above-mentioned transition piece 1, it has at least the same technical effects as the transition piece 1, which will not be elaborated here one by one.

[0046] The above description is only an optional embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A transition piece for a battery module, the battery module comprising a battery cell group, an end plate and an integrated busbar, characterized in that: The transition piece is detachably mounted on the end plate, and the transition piece comprises: A first accommodating groove, used to accommodate the communication interface of the integrated busbar, wherein the first accommodating groove is provided with a first fixing structure for fixing the communication interface; A second accommodating groove is used to accommodate the aluminum bar of the integrated busbar, and the second accommodating groove is provided with a limiting structure for limiting the aluminum bar; The second fixing structure is used for detachable connection between the transition piece and the end plate.

2. The transition piece for a battery module according to claim 1, characterized in that: The communication interface is installed on a fixing plate, and a supporting platform is respectively provided at both ends of the first accommodating groove, and both ends of the fixing plate are respectively mounted on the supporting platforms.

3. The transition piece for a battery module according to claim 2, characterized in that: The first fixing structure is configured as a first fixing hole opened on the support platform, the fixing plate is provided with a first docking hole docked with the first fixing hole, and the first fixing hole and the first docking hole are connected by a fixing member.

4. The transition piece for a battery module according to claim 1, characterized in that: The limiting structure is configured as a plurality of reinforcing ribs integrally formed with the transition piece, and the plurality of reinforcing ribs are symmetrically arranged on both sides of the aluminum bar.

5. The transition piece for a battery module according to claim 4, characterized in that: A gap is arranged between the reinforcing rib and the aluminum row.

6. The transition piece for a battery module according to claim 4, characterized in that: The end of the reinforcing rib is provided with a guiding inclined surface for guiding the installation of the aluminum bar.

7. The transition piece for a battery module according to claim 1, characterized in that: The second fixing structure is configured as a buckle structure, and the end plate is provided with a clamping platform that is clamped with the buckle structure.

8. The transition piece for a battery module according to claim 7, characterized in that: The second fixing structure is provided in plurality, and the plurality of second fixing structures are arranged along the length direction of the transition piece.

9. The transition piece for a battery module according to claim 1, characterized in that: The transition piece is configured as a plastic integrally formed structure.

10. A battery module, characterized in that: It comprises the transition piece described in any one of claims 1 to 9.

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