Battery module connecting structure and battery pack
By introducing an adapter board structure into the battery module, the problem of difficult disassembly of BMS components in the existing technology is solved, enabling convenient maintenance and replacement of the battery module, reducing maintenance costs, and improving the maintainability of the battery module.
Patent Information
- Application Number
- CN202422466129.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-10-11
AI Technical Summary
In the prior art, BMS components are mounted on the battery module bracket using high-strength double-sided tape or adhesive, which makes disassembly difficult, easily damages the BMS components or bracket, and affects the efficiency of maintenance and replacement.
An adapter plate structure is adopted, which is set between the battery bracket and the BMS component. The battery bracket, adapter plate and BMS component are connected by locking parts, so as to realize the detachable connection of the battery bracket, adapter plate and BMS component and avoid damage to the components during disassembly.
It enables convenient disassembly and reassembly of BMS components, reduces the maintenance and replacement costs of battery modules, avoids component damage, and improves the maintainability of battery modules.
Smart Images
Figure CN223502130U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery technology, and in particular to a battery module connection structure and battery pack. Background Technology
[0002] In battery modules, in order to intelligently manage and maintain each individual battery cell and prevent overcharging and over-discharging, a Battery Management System (BMS) is usually installed to extend battery life and monitor battery status. In the existing technology, the BMS component is mainly installed on the battery module bracket using high-strength double-sided tape or adhesive. However, the use of double-sided tape or adhesive for fixing makes it difficult to disassemble the battery module when it needs to be repaired or parts replaced, which can easily lead to damage to the BMS component or the battery module bracket. Utility Model Content
[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a battery module connection structure and battery pack.
[0004] The objective of this utility model is achieved through the following technical solution:
[0005] A battery module connection structure includes: a battery bracket, a BMS component, and an adapter plate. The battery bracket has a receiving cavity, and multiple individual batteries are disposed within the receiving cavity. The BMS component is disposed above the battery bracket and is electrically connected to the individual batteries. The adapter plate is disposed between the battery bracket and the BMS component and is detachably connected to both the battery bracket and the BMS component.
[0006] In one embodiment, the battery holder has a plurality of first fixing holes, and the adapter plate has a plurality of first through holes. The first fixing holes and the first through holes are aligned. A first locking member is inserted through the first through hole. The first locking member is engaged with or connected to the first fixing hole by a stud.
[0007] In one embodiment, the adapter plate has a plurality of second fixing holes, and the BMS component has a plurality of second through holes. The second fixing holes are aligned with the second through holes, and a second locking member passes through the second through hole. The second locking member is engaged with or connected to the second fixing hole by a stud.
[0008] In one embodiment, the adapter plate is an aluminum alloy plate or a stainless steel plate.
[0009] In one embodiment, the thickness of the adapter plate is 1mm to 3mm.
[0010] In one embodiment, the battery holder includes an insulating plate, a first limiting plate, and a second limiting plate, the first limiting plate and the second limiting plate being disposed opposite to each other, and the insulating plate being engaged between the first limiting plate and the second limiting plate.
[0011] In one embodiment, the battery bracket further includes a plurality of protective plates disposed on the side of the insulating plate near the individual battery cell, and the protective plates are connected to the insulating plate.
[0012] In one embodiment, the battery bracket further includes a plurality of support portions disposed on one side of the first fixing hole, the height of the support portions being higher than the height of the BMS component.
[0013] In one embodiment, a first cutout area is provided between the adapter plate and the battery holder, and a second cutout area is provided between the adapter plate and the BMS component.
[0014] A battery pack includes the aforementioned battery module connection structure, and also includes a housing, on which a handheld component is provided.
[0015] Compared with the prior art, the present invention has at least the following advantages:
[0016] This utility model discloses a battery module connection structure by setting an adapter plate between the battery bracket and the BMS component. This allows the BMS component to be mounted on the battery bracket via the adapter plate. The battery bracket, adapter plate, and BMS component are provided with mounting holes for installation. When the battery module needs repair or replacement of parts, the battery bracket, adapter plate, and BMS component can be disassembled and separated through the mounting holes, which can avoid damage to the BMS component or battery bracket during disassembly and facilitate manual reassembly of the battery bracket, adapter plate, and BMS component. When the model of the BMS component needs to be changed, only the corresponding adapter plate needs to be replaced, without remanufacturing the battery bracket, thus reducing the manufacturing cost of the battery module. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below.
[0018] Figure 1 This is a schematic diagram of a battery module connection structure according to one embodiment of the present invention;
[0019] Figure 2 This is another schematic diagram of a battery module connection structure according to one embodiment of the present invention;
[0020] Figure 3 for Figure 1A schematic diagram of the adapter plate structure in the diagram;
[0021] Figure 4 This is a schematic diagram of the shell structure in one embodiment of the present invention.
[0022] Figure Descriptions: 10. Battery module; 100. Battery bracket; 200. BMS assembly; 300. Adapter plate; 110. Receiving cavity; 111. Single battery cell; 120. First fixing hole; 310. First through hole; 311. First locking element; 320. Second fixing hole; 210. Second through hole; 211. Second locking element; 130. Insulating plate; 140. First limiting plate; 150. Second limiting plate; 160. Protective plate; 170. Support part; 330. First hollow area; 340. Second hollow area; 20. Housing; 21. Handheld part; Detailed Implementation
[0023] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.
[0024] Please see Figures 1 to 3 A battery module connection structure 10 includes: a battery bracket 100, a BMS component 200, and an adapter plate 300. The battery bracket 100 is provided with a receiving cavity 110, and a plurality of individual batteries 111 are disposed in the receiving cavity 110. The BMS component 200 is disposed above the battery bracket 100 and is electrically connected to the individual batteries 111. The adapter plate 300 is disposed between the battery bracket 100 and the BMS component 200 and is detachably connected to both the battery bracket 100 and the BMS component 200.
[0025] It should be noted that by setting an adapter plate 300 between the battery bracket 100 and the BMS component 200, the BMS component 200 can be mounted on the battery bracket 100 through the adapter plate 300. The battery bracket 100, the adapter plate 300, and the BMS component 200 are provided with mounting holes for installation. When the battery module needs to be repaired or parts replaced, the battery bracket 100, the adapter plate 300, and the BMS component 200 can be disassembled and separated through the mounting holes, which can avoid damage to the BMS component 200 or the battery bracket 100 during disassembly and facilitate manual reassembly of the battery bracket 100, the adapter plate 300, and the BMS component 200. When the model of the BMS component 200 is changed, only the corresponding adapter plate 300 needs to be replaced, without remanufacturing the battery bracket 100, thus reducing the manufacturing cost of the battery module.
[0026] Please refer to it again. Figures 1 to 3In one embodiment, the battery bracket 100 is provided with a plurality of first fixing holes 120, and the adapter plate 300 is provided with a plurality of first through holes 310. The first fixing holes 120 and the first through holes 310 are aligned and arranged. A first locking member 311 is provided through the first through hole 310. The first locking member 311 is engaged with the first fixing hole 120 or connected with a stud.
[0027] It should be noted that the operator places the adapter plate 300 on the battery bracket 100, aligns the multiple first through holes 310 on the adapter plate 300 with the multiple first fixing holes 120 on the battery bracket 100, and uses the first locking member 311 to pass through the first through holes 310 and fix them to the first fixing holes 120. Thus, the adapter plate 300 is installed on the battery bracket 100. Preferably, the first locking member 311 and the first fixing holes 120 adopt a stud connection. Both stud connections and snap-fit connections are detachable. When the battery module needs to be repaired or parts replaced, the fixing bolts can be easily removed without causing irreversible damage to the BMS component 200 or the battery bracket 100. This facilitates the disassembly and assembly of the adapter plate 300 and the battery bracket 100 during maintenance. However, the stability of the stud connection is higher than that of the snap-fit connection, which improves the reliability of the connection between the adapter plate 300 and the battery bracket 100.
[0028] Please refer to it again. Figures 1 to 3 In one embodiment, the adapter plate 300 is provided with a plurality of second fixing holes 320, and the BMS component 200 is provided with a plurality of second through holes 210. The second fixing holes 320 and the second through holes 210 are aligned. A second locking member 211 passes through the second through hole 210. The second locking member 211 and the second fixing hole 320 are connected by a snap-fit connection or a stud connection.
[0029] It should be noted that the operator places the BMS component 200 on the adapter plate 300, aligns the multiple second through holes 210 on the BMS component 200 with the multiple second fixing holes 320 on the adapter plate 300, and uses the second locking member 211 to pass through the second through holes 210 and fix them to the second fixing holes 320. In this way, the BMS component 200 is installed on the adapter plate 300, and the BMS component 200 is assembled with the battery bracket 100 through the adapter plate 300. Similarly, it is preferable to use a stud connection to connect the second locking member 211 and the second fixing hole 320.
[0030] Please refer to it again. Figure 3In one embodiment, the adapter plate 300 is an aluminum alloy plate or a stainless steel plate. Preferably, the adapter plate 300 is an aluminum alloy plate. Aluminum alloy plates have good strength and durability, thereby improving the service life of the adapter plate 300 and improving the performance of the battery module. Furthermore, the cost of using an aluminum alloy plate as the adapter plate 300 is much lower than that of other metal plates, thereby improving the economic benefits of enterprises.
[0031] Please refer to it again. Figure 3 In one embodiment, the thickness of the adapter plate 300 is 1mm to 3mm. Different thicknesses of the adapter plate 300 can be selected according to the requirements. Preferably, the thickness of the adapter plate 300 is selected as 2mm. This ensures that the adapter plate 300 has sufficient strength while not restricting the wiring space between the BMS component 200 and the single cell 111.
[0032] Please refer to it again. Figure 2 In one embodiment, the battery bracket 100 includes an insulating plate 130, a first limiting plate 140, and a second limiting plate 150. The first limiting plate and the second limiting plate 150 are arranged opposite to each other. The insulating plate 130 is engaged between the first limiting plate 140 and the second limiting plate 150. The battery bracket 100 has electrical connection points for individual batteries 111 on both sides. The insulating plate 130 is provided here to insulate and protect the electrical connection points of the individual batteries 111.
[0033] Please refer to it again. Figure 1 and Figure 2 In one embodiment, the battery bracket 100 further includes a plurality of protective plates 160. The protective plates 160 are disposed on the side of the insulating plate 130 near the single cell 111. The protective plates 160 are connected to the insulating plate 130 and provide support for the insulating plate 130, thereby preventing the insulating plate 130 from squeezing the electrical connection of the single cell 111 and causing a reduction in the power supply performance of the battery module.
[0034] Please refer to it again. Figure 1 In one embodiment, the battery bracket 100 further includes a plurality of support portions 170, which are disposed on one side of the first fixing hole 120. The horizontal height of the support portion 170 is higher than the horizontal height of the BMS component 200. The support portion 170 is mainly used to provide protection for the BMS component 200 and prevent the BMS component 200 from being squeezed and damaged.
[0035] Please refer to it again. Figure 1In one embodiment, a first hollow area 330 is provided between the adapter plate 300 and the battery bracket 100, and a second hollow area 340 is provided between the adapter plate 300 and the BMS component 200. This arrangement facilitates the connection of the wires of the BMS component 200 through the first hollow area 330 and the second hollow area 340 to the single battery 111, making the structure of the battery module more compact.
[0036] Please see Figure 4 A battery pack includes the aforementioned battery module connection structure 10, and also includes a housing 20. The housing is further provided with a handheld component 21, which facilitates the handling of the battery module by the staff.
[0037] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A battery module connection structure, characterized in that, include: A battery holder, wherein a receiving cavity is provided on the battery holder and a plurality of individual batteries are disposed within the receiving cavity; The BMS component is disposed above the battery bracket and is electrically connected to the individual battery cell. and An adapter plate is disposed between the battery bracket and the BMS assembly, and the adapter plate is detachably connected to both the battery bracket and the BMS assembly.
2. The battery module connection structure according to claim 1, characterized in that, The battery bracket has multiple first fixing holes, and the adapter plate has multiple first through holes. The first fixing holes and the first through holes are aligned. A first locking member is inserted through the first through hole. The first locking member is engaged with the first fixing hole or connected with a stud.
3. The battery module connection structure according to claim 1, characterized in that, The adapter plate has multiple second fixing holes, and the BMS component has multiple second through holes. The second fixing holes and the second through holes are aligned. A second locking member passes through the second through hole and engages with or is connected to the second fixing hole via a stud.
4. The battery module connection structure according to claim 1, characterized in that, The adapter plate is made of aluminum alloy or stainless steel.
5. A battery module connection structure according to claim 4, characterized in that, The thickness of the adapter plate is 1mm to 3mm.
6. A battery module connection structure according to any one of claims 1-5, characterized in that, The battery bracket includes an insulating plate, a first limiting plate, and a second limiting plate. The first limiting plate and the second limiting plate are arranged opposite to each other, and the insulating plate is engaged between the first limiting plate and the second limiting plate.
7. A battery module connection structure according to claim 6, characterized in that, The battery bracket also includes multiple protective plates, which are disposed on the side of the insulating plate close to the individual battery cell, and are connected to the insulating plate.
8. A battery module connection structure according to claim 2, characterized in that, The battery bracket also includes multiple support portions, which are disposed on one side of the first fixing hole, and the height of the support portions is higher than the height of the BMS component.
9. A battery module connection structure according to claim 1, characterized in that, A first cutout area is provided between the adapter plate and the battery bracket, and a second cutout area is provided between the adapter plate and the BMS component.
10. A battery pack, comprising a battery module connection structure as described in any one of claims 1-9, and further comprising a housing, wherein a handheld component is provided on the housing.