Module structure
By arranging insulating parts and staggered connectors in the battery module structure, the problem of short-circuit contact in traditional battery modules is solved and the heat dissipation performance is improved.
Patent Information
- Application Number
- CN202420731819.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-04-09
AI Technical Summary
During the assembly process of traditional battery modules, two adjacent bus copper bars are prone to physical contact, resulting in short circuit problems.
A module structure is designed, which avoids direct contact by arranging a first insulator between two adjacent single cells and a second insulator between the end plate and the adjacent single cell. At the same time, staggered first connectors and second connectors are used to ensure that the bus copper bars do not come into physical contact.
It effectively avoids physical contact between the two bus copper bars, improves the problem of short-circuit contact in the battery module structure, and improves the heat dissipation performance of the battery cell mechanism.
Smart Images
Figure CN222380763U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery boxes, in particular to a module structure. Background Art
[0002] A battery box is a device used to store and protect batteries. It is usually made of strong materials and has the appropriate size and structure to accommodate the batteries. It is designed to provide the physical protection, electrical isolation and temperature control required by the batteries.
[0003] The design of the module is one of the main components in the battery box design. The traditional battery module includes multiple battery cell groups. In actual application, multiple busbars are required to be electrically connected to the multiple battery cell groups one by one to achieve the series and parallel effect between the battery cells. However, during the assembly process of the existing battery module, two adjacent busbars are prone to physical contact, resulting in a short circuit problem. Utility Model Content
[0004] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a module structure that can avoid physical contact between two busbars and improve the problem of short-circuit contact that is prone to occur in the battery module structure.
[0005] According to the module structure of the embodiment of the utility model, it includes a plurality of single cells and two end plates, the plurality of single cells are arranged in sequence between the two end plates, a first insulating member is arranged between two adjacent single cells, a second insulating member is arranged between the end plate and the adjacent single cells, the first insulating member can prevent the two adjacent single cells from directly contacting each other, and the second insulating member can prevent the end plate from directly contacting the adjacent single cells, a positive electrode ear and a negative electrode ear are arranged on the single cells, and the positive electrode ear and the negative electrode ear on the two adjacent single cells are staggered along the arrangement direction of the single cells; a fixing mechanism, the cell mechanism is installed on the fixing mechanism, the fixing mechanism includes a first connecting member and a second connecting member, the number of the first connecting members corresponds to the number of the first insulating members, each first insulating member is correspondingly provided with a first connecting member, the number of the second connecting members corresponds to the number of the second insulating members, each second insulating member is correspondingly provided with a second connecting member, one end of the first connecting member is connected to the positive electrode ear, and the other end is connected to the negative electrode ear, one end of the second connecting member is connected to the positive electrode ear or the negative electrode ear, and the other end is connected to the end plate.
[0006] According to the module structure of the embodiment of the utility model, at least the following beneficial effects are achieved: two adjacent single battery cells are spaced by a first insulating plate, adjacent end plates and single battery cells are spaced by a second insulating plate, a first connector is straddled on the first insulating member and connected to the positive pole ear and the negative pole ear in sequence along the current direction, and a second connector is straddled on the second insulating member and connected to the positive pole ear and the negative pole ear in sequence along the current direction. The staggered arrangement of the first connector and the second connector can effectively avoid physical contact between the two busbars, thereby improving the problem of short-circuit contact in the battery module structure. At the same time, the first insulating member and the second insulating member create a heat-insulating environment for the battery cell mechanism, which can improve the heat dissipation performance of the battery cell mechanism while avoiding direct contact between the single battery cells.
[0007] According to some embodiments of the present invention, the second connecting member is connected to the end plate via an insulating seat.
[0008] According to some embodiments of the utility model, a plurality of limit grooves are arranged on the battery cell mechanism along the length direction, and the plurality of limit grooves are symmetrically arranged on both sides of the battery cell mechanism. The fixing mechanism also includes fixing plates, and the number of the fixing plates corresponds to the number of the limit grooves. One end of each fixing plate is fixedly arranged on one of the end plates, and the other end passes through the limit groove and is fixedly arranged on the other end plate.
[0009] According to some embodiments of the present invention, the fixing mechanism further includes a cover plate, which is disposed on the battery cell mechanism and is located on a side where the battery cell mechanism is connected to the first connector.
[0010] According to some embodiments of the utility model, the limiting groove includes: a first groove, the number of the first grooves corresponds to the number of the first insulating parts, and each first insulating part is provided with a first groove; a second groove, the number of the second grooves corresponds to the number of the second insulating parts, and each second insulating part is provided with a second groove, and a plurality of first grooves and a plurality of second grooves are located on the same straight line.
[0011] According to some embodiments of the utility model, a plurality of first positioning columns are provided on the first insulating member, and a plurality of first through holes that can cooperate with the first positioning columns are correspondingly provided on the first connecting member. The first positioning columns cooperate with the corresponding first through holes to limit the position of the first connecting member on the first insulating member.
[0012] According to some embodiments of the utility model, a plurality of second positioning columns are provided on the second insulating member, and a plurality of second through holes that can cooperate with the second positioning columns are correspondingly provided on the second connecting member. The second positioning columns cooperate with the corresponding second through holes to limit the position of the second connecting member on the end plate.
[0013] According to some embodiments of the utility model, a third positioning column is provided on the second insulating member, and the third positioning column is located on the side of the second insulating member close to the end plate. A third through hole that can cooperate with the third positioning column is provided on the end plate, and the third positioning column cooperates with the corresponding third through hole to limit the position of the second insulating member on the end plate.
[0014] According to some embodiments of the present invention, a plurality of hoisting holes are provided on the end plate, and the plurality of hoisting holes are used for hoisting the battery module.
[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;
[0017] Figure 1 It is a structural schematic diagram of the module structure of an embodiment of the utility model;
[0018] Figure 2 for Figure 1 A schematic diagram of the structure of the hidden cover;
[0019] Figure 3 for Figure 2 Explosion diagram in .
[0020] Reference numerals:
[0021] Battery cell structure 100, single battery cell 110, positive electrode ear 111, negative electrode ear 112, end plate 120, third through hole 121, hanging hole 122, first insulating member 130, first positioning column 131, second insulating member 140, second positioning column 141, third positioning column 142, limiting groove 150, first groove 151, second groove 152;
[0022] The fixing mechanism 200 , the first connecting member 210 , the first through hole 211 , the first clearance hole 212 , the second connecting member 220 , the second through hole 221 , the second clearance hole 222 , the fixing plate 230 , and the cover plate 240 . DETAILED DESCRIPTION
[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0024] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0025] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a first or second description, it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0027] refer to Figures 1 to 3 The module structure according to the embodiment of the present utility model is described.
[0028] like Figures 1 to 3As shown, the module structure includes a cell mechanism 100, the cell mechanism 100 includes a plurality of single cells 110 and two end plates 120, the plurality of single cells 110 are sequentially arranged between the two end plates 120, a first insulating member 130 is arranged between two adjacent single cells 110, a second insulating member 140 is arranged between the end plate 120 and the adjacent single cells 110, the first insulating member 130 can prevent the two adjacent single cells 110 from directly contacting, the second insulating member 140 can prevent the end plate 120 from directly contacting the adjacent single cells 110, a positive electrode ear 111 and a negative electrode ear 112 are arranged on the single cell 110, and the positive electrode ear 111 and the negative electrode ear 112 on the two adjacent single cells 110 are arranged along the single cell 110 The arrangement direction is staggered; the fixing mechanism 200, the battery cell mechanism 100 is installed on the fixing mechanism 200, the fixing mechanism 200 includes a first connecting member 210 and a second connecting member 220, the number of the first connecting members 210 corresponds to the number of the first insulating members 130, and each first insulating member 130 is correspondingly provided with a first connecting member 210, the number of the second connecting members 220 corresponds to the number of the second insulating members 140, and each second insulating member 140 is correspondingly provided with a second connecting member 220, one end of the first connecting member 210 is connected to the positive ear 111, and the other end is connected to the negative ear 112, one end of the second connecting member 220 is connected to the positive ear 111 or the negative ear 112, and the other end is connected to the end plate 120.
[0029] like Figure 1 As shown, the cell structure 100 is arranged in a rectangular box along the left-right direction, two end plates 120 are respectively located at the left and right ends of the cell structure 100, and a plurality of single cells 110 are arranged in sequence along the left-right direction between the two end plates 120, a first insulator is arranged between two adjacent single cells 110, and a second insulator is arranged between each end plate 120 and the adjacent single cell 110, so as to avoid direct contact between two adjacent single cells 110, and between adjacent end plates 120 and single cells 110. Figure 3 As shown, a positive electrode ear 111 and a negative electrode ear 112 are arranged on the single cell 110 along the front-to-back direction. Specifically, two adjacent single cells 110 are symmetrical in center, that is, the electrodes arranged along the same straight line in the left-right direction are the positive electrode ear 111 and the negative electrode ear 112 arranged alternately. It should be noted that a first connector 210 is arranged on each first insulating member 130, and a second connector 220 is arranged on each second insulating member 140. One end of the first connector 210 is connected to the positive electrode ear 111, and the other end is connected to the negative electrode ear 112. One end of the second connector 220 is connected to the positive electrode ear 111, and the other end is connected to the negative electrode ear 112. Then, the first connector 210 and the second connector 220 both extend in the left-right direction.
[0030] Thus, two adjacent single battery cells 110 are spaced apart by a first insulating plate, and adjacent end plates 120 and single battery cells 110 are spaced apart by a second insulating plate. The first connector 210 is straddled on the first insulating member 130 and connected to the positive electrode ear 111 and the negative electrode ear 112 in sequence along the current direction. The second connector 220 is straddled on the second insulating member 140 and connected to the positive electrode ear 111 and the negative electrode ear 112 in sequence along the current direction. The staggered arrangement of the first connector 210 and the second connector 220 can effectively avoid physical contact between the two busbars, and improve the problem of short-circuit contact of the battery cell structure 100. At the same time, the first insulating member 130 and the second insulating member 140 create a heat-insulating environment for the battery cell structure 100, which can improve the heat dissipation performance of the battery cell structure 100 while avoiding direct contact between the single battery cells 110.
[0031] In some specific embodiments of the present invention, the second connecting member 220 is connected to the end plate 120 via an insulating seat.
[0032] In some specific embodiments of the utility model, a plurality of limiting grooves 150 are arranged on the battery cell mechanism 100 along the length direction, and the plurality of limiting grooves 150 are symmetrically arranged on both sides of the battery cell mechanism 100. The fixing mechanism 200 also includes a fixing plate 230, and the number of the fixing plates 230 corresponds to the number of the limiting grooves 150. One end of each fixing plate 230 is fixedly arranged on one of the end plates 120, and the other end passes through the limiting groove 150 and is fixedly arranged on the other end plate 120.
[0033] like Figure 2 and Figure 3 As shown, the battery cell mechanism 100 is provided with four limiting grooves 150, which extend in the left-right direction and are respectively arranged in pairs on the front and rear sides of the battery cell mechanism 100. Correspondingly, four fixing plates 230 are also provided, and the four fixing plates 230 are respectively arranged in the four limiting grooves 150. Specifically, the left end of each fixing plate 230 is set on the edge of the left end plate 120 by bolts, and the right end of the fixing plate 230 is set on the edge of the right end plate 120 by bolts. Thus, the fixing plates 230 located on the front and rear sides of the battery cell mechanism 100 are connected with the two end plates 120 and are limited in the limiting grooves 150, thereby limiting the displacement of a plurality of single battery cells 110, the first insulating member 130 and the second insulating member 140 in the up and down directions, so that a plurality of single battery cells 110, the first insulating member 130 and the second insulating member 140 can be sequentially overlapped and connected.
[0034] In some specific embodiments of the present invention, the fixing mechanism 200 further includes a cover plate 240, which is disposed on the battery cell mechanism 100 and is located on a side where the battery cell mechanism 100 is connected to the first connector 210. Figure 3As shown, the cover plate 240 is disposed on the upper end of the cell structure 100 to cover and protect the first connector 210 and the second connector 220 connected to the upper ends of the positive electrode tab 111 and the negative electrode tab 112 .
[0035] In some specific embodiments of the present invention, the limiting groove 150 includes: a first groove 151, the number of the first grooves 151 corresponds to the number of the first insulating members 130, and each first insulating member 130 is provided with a first groove 151; a second groove 152, the number of the second grooves 152 corresponds to the number of the second insulating members 140, and each second insulating member 140 is provided with a second groove 152, and a plurality of first grooves 151 and a plurality of second grooves 152 are located on the same straight line.
[0036] like Figure 3 As shown, the limiting groove 150 includes a plurality of first grooves 151 and two second grooves 152. In the present specific embodiment, eight single cells 110 are provided, and seven first insulating members 130 are respectively interspersed in the eight single cells 110. A second insulating member 140 is respectively provided at both ends of the eight single cells 110. Each first insulating member 130 is provided with two first grooves 151 along the up-down direction, and each second insulating member 140 is provided with two second grooves 152 along the up-down direction. The six first grooves 151 located on the same straight line and the two second grooves 152 located at both ends of the seven first grooves 151 form a limiting groove 150. Therefore, when the fixing plate 230 is accommodated in the limiting groove 150, while limiting the positions of the first insulating plate and the second insulating plate, direct contact between the fixing plate 230 and the single cells 110 can also be avoided.
[0037] In some specific embodiments of the present invention, a plurality of first positioning columns 131 are provided on the first insulating member 130, and a plurality of first through holes 211 that can cooperate with the first positioning columns 131 are correspondingly provided on the first connecting member 210. The first positioning columns 131 cooperate with the corresponding first through holes 211 to limit the position of the first connecting member 210 on the first insulating member 130.
[0038] like Figure 3As shown, two first positioning posts 131 are provided on the first insulating member 130, and four first through holes 211 are provided on the first connecting member 210. The two first positioning posts 131 correspond to the two first through holes 211 at opposite corners, respectively. The first through holes 211 on the first connecting member 210 are sleeved on the corresponding first positioning posts 131 to limit the position of the first connecting member 210 on the first insulating member 130. Further, first clearance holes 212 are symmetrically provided at the left and right ends of the first connecting member 210. The first clearance holes 212 correspond to the welding positions of the positive electrode ears 111 or the negative electrode ears 112. Through the first clearance holes 212, the welding positions can be directly visually observed to ensure the accuracy of welding the first connecting member 210 with the positive electrode ears 111 and the negative electrode ears 112 at both ends.
[0039] In some specific embodiments of the present invention, a plurality of second positioning columns 141 are provided on the second insulating member 140, and a plurality of second through holes 221 that can cooperate with the second positioning columns 141 are correspondingly provided on the second connecting member 220. The second positioning columns 141 cooperate with the corresponding second through holes 221 to limit the position of the second connecting member 220 on the end plate 120.
[0040] like Figure 3 As shown, two second positioning posts 141 are provided on the second insulating member 140, and four second through holes 221 are provided on the second connecting member 220. The two second positioning posts 141 correspond to the two second through holes 221 at opposite corners, respectively. The second through holes 221 on the second connecting member 220 are sleeved on the corresponding second positioning posts 141 to limit the position of the second connecting member 220 on the second insulating member 140. Further, second clearance holes 222 are symmetrically provided at the left and right ends of the second connecting member 220. The second clearance holes 222 correspond to the welding positions of the positive electrode ears 111 or the negative electrode ears 112. The welding positions can be directly visually observed through the second clearance holes 222 to ensure the accuracy of welding the second connecting member 220 with the positive electrode ears 111 and the negative electrode ears 112 at both ends.
[0041] It should be noted that the first positioning posts 131 may be provided with three, four or more, and correspondingly, the first through holes 211 should correspond to the first positioning posts 131, and the number of the first through holes 211 is greater than or equal to the number of the corresponding first positioning posts 131. Of course, the first positioning post 131 may also be provided with one, and its cross section is a special shape or polygon, and correspondingly, the cross section of the first through hole 211 is consistent with the cross section of the first positioning post 131, so when there is only one first positioning post 131, the first connector 210 can also be positioned on the first insulating plate. Similarly, the situation of the second positioning post 141 is similar to that of the first positioning post 131, so it is not repeated.
[0042] In some specific embodiments of the present invention, the second insulating member 140 is provided with a third positioning column 142, and the third positioning column 142 is located on the side of the second insulating member 140 close to the end plate 120. The end plate 120 is provided with a third through hole 121 that can cooperate with the third positioning column 142. The third positioning column 142 cooperates with the corresponding third through hole 121 to limit the position of the second insulating member 140 on the end plate 120. Figure 3 As shown, two third positioning columns 142 are provided on the second insulating member 140, and two third through holes 121 are provided on each end plate 120. The two third positioning columns 142 correspond to the two third through holes 121 respectively, and the third through holes 121 on the end plate 120 are sleeved on the corresponding third positioning columns 142 to limit the position of the second connecting member 220 on the second insulating member 140.
[0043] In some specific embodiments of the present invention, a plurality of lifting holes 122 are provided on the end plate 120, and the plurality of lifting holes 122 are used for lifting the battery cell mechanism 100. Figure 3 As shown, each end plate 120 is provided with two lifting holes 122, and the two lifting holes 122 are arranged at one end of the end plate 120 away from the single battery cell 110. The two lifting holes 122 are arranged at the front and rear ends of the end plate 120 along the front-to-back direction. The lifting equipment is connected to the lifting holes 122 on the two end plates 120, so that the battery cell structure 100 can be safely lifted or suspended.
[0044] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.
Claims
1. A module structure, characterized in that: include: A cell structure (100), the cell structure (100) comprising a plurality of single cells (110) and two end plates (120), the plurality of single cells (110) being arranged in sequence between the two end plates (120), a first insulating member (130) being arranged between two adjacent single cells (110), a second insulating member (140) being arranged between the end plates (120) and the adjacent single cells (110), the first insulating member (130) being arranged between the two adjacent single cells (110), 0) can prevent two adjacent single cells (110) from directly contacting each other, the second insulating member (140) can prevent the end plate (120) from directly contacting the adjacent single cells (110), the single cells (110) are provided with positive pole ears (111) and negative pole ears (112), and the positive pole ears (111) and the negative pole ears (112) on the two adjacent single cells (110) are arranged alternately along the arrangement direction of the single cells (110); A fixing mechanism (200), wherein the battery cell mechanism (100) is mounted on the fixing mechanism (200), and the fixing mechanism (200) comprises a first connecting member (210) and a second connecting member (220), wherein the number of the first connecting members (210) corresponds to the number of the first insulating members (130), and each of the first insulating members (130) is provided with a corresponding first connecting member (210), and the number of the second connecting members (220) corresponds to the number of the second insulating members (140), and each of the second insulating members (140) is provided with a corresponding second connecting member (220), wherein one end of the first connecting member (210) is connected to the positive electrode ear (111), and the other end is connected to the negative electrode ear (112), and one end of the second connecting member (220) is connected to the positive electrode ear (111) or the negative electrode ear (112), and the other end is connected to the end plate (120).
2. The module structure according to claim 1, characterized in that: The second connecting member (220) is connected to the end plate (120) via an insulating seat.
3. The module structure according to claim 1, characterized in that: The battery cell mechanism (100) is provided with a plurality of limiting grooves (150) along the length direction, and the plurality of limiting grooves (150) are symmetrically arranged on both sides of the battery cell mechanism (100); the fixing mechanism (200) further comprises fixing plates (230), the number of the fixing plates (230) corresponds to the number of the limiting grooves (150), and one end of each fixing plate (230) is fixedly arranged on one of the end plates (120), and the other end passes through the limiting groove (150) and is fixedly arranged on the other end plate (120).
4. The module structure according to claim 1, characterized in that: The fixing mechanism (200) further comprises a cover plate (240), wherein the cover plate (240) is arranged to cover the battery cell mechanism (100), and the cover plate (240) is located on a side where the battery cell mechanism (100) is connected to the first connecting member (210).
5. The module structure according to claim 3, characterized in that: The limiting groove (150) comprises: first grooves (151), the number of the first grooves (151) corresponding to the number of the first insulating members (130), and each of the first insulating members (130) is provided with one first groove (151); Second grooves (152), the number of the second grooves (152) corresponds to the number of the second insulating members (140), each of the second insulating members (140) is provided with a second groove (152), and a plurality of the first grooves (151) and a plurality of the second grooves (152) are located on the same straight line.
6. The module structure according to claim 2, characterized in that: The first insulating member (130) is provided with a plurality of first positioning posts (131), and the first connecting member (210) is correspondingly provided with a plurality of first through holes (211) that can cooperate with the first positioning posts (131). The first positioning posts (131) cooperate with the corresponding first through holes (211) to limit the position of the first connecting member (210) on the first insulating member (130).
7. The module structure according to claim 2, characterized in that: The second insulating member (140) is provided with a plurality of second positioning posts (141), and the second connecting member (220) is correspondingly provided with a plurality of second through holes (221) that can cooperate with the second positioning posts (141), and the second positioning posts (141) cooperate with the corresponding second through holes (221) to limit the position of the second connecting member (220) on the end plate (120).
8. The module structure according to claim 1, characterized in that: A third positioning column (142) is provided on the second insulating member (140), and the third positioning column (142) is located on the side of the second insulating member (140) close to the end plate (120). A third through hole (121) that can cooperate with the third positioning column (142) is provided on the end plate (120). The third positioning column (142) cooperates with the corresponding third through hole (121) to limit the position of the second insulating member (140) on the end plate (120).
9. The module structure according to claim 2, characterized in that: A plurality of hoisting holes (122) are provided on the end plate (120), and the plurality of hoisting holes (122) are used for hoisting the battery cell mechanism (100).