CCS sampling assembly and battery module
By setting positioning grooves and positioning columns on the plastic bracket, the positioning and installation of the temperature-sensitive bracket is directly realized, which solves the problem of low production efficiency in the prior art and improves the compactness and efficiency of the production process.
Patent Information
- Application Number
- CN202422299479.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-20
AI Technical Summary
During the production process, the existing CCS sampling assembly requires positioning tooling and assisted positioning, resulting in slow pace of production processes and low production efficiency.
Positioning grooves and multiple positioning columns are provided on the plastic bracket, and corresponding positioning holes are provided on the temperature-sensitive bracket. Direct positioning installation is achieved by inserting the positioning holes of the positioning column, reducing the process steps, and directly docking with the plastic bracket.
Shorten production time, improve production efficiency, and achieve compactness of production processes.
Smart Images
Figure CN223166797U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of batteries, in particular to a CCS sampling assembly and a battery module. Background Art
[0002] With economic development and technological advancements, power batteries are widely used in industries such as electric vehicles. To ensure that power batteries operate within the specified voltage and temperature ranges, voltage and temperature signals must be collected from each battery cell in the battery module. This is typically performed by a CCS (Cells Contact System) sampling assembly. The temperature and voltage signals collected by the CCS sampling assembly are then transmitted to the battery management system for effective battery management.
[0003] Among them, the structure involved in temperature signal acquisition in the CCS sampling assembly mainly includes a plastic bracket and a temperature sensing bracket for fixing the temperature probe. It is necessary to fix the temperature sensing bracket and the bar on the plastic bracket by hot riveting. In this production, the temperature sensing bracket needs to be placed in the positioning tooling first, and then the temperature sensing bracket and the plastic bracket are docked to complete the hot riveting assembly. However, this production method requires the positioning tooling to assist in positioning the temperature sensing bracket before the temperature sensing bracket and the plastic bracket can be assembled, which leads to slow production process and low production efficiency. Utility Model Content
[0004] The purpose of the utility model is to provide a CCS sampling assembly and a battery module, which have compact production process and high production efficiency.
[0005] To achieve this purpose, the present invention adopts the following technical solutions:
[0006] In one aspect, a CCS sampling assembly is provided, comprising:
[0007] A plastic bracket, wherein the plastic bracket has a positioning groove formed inwardly, and convex edges are formed on both sides of the positioning groove. The plastic bracket is also provided with a plurality of positioning posts located in the positioning groove;
[0008] A temperature sensing bracket, wherein positioning holes corresponding to the plurality of positioning posts are formed on the temperature sensing bracket, the temperature sensing bracket is arranged in the positioning groove, and the positioning posts are inserted into the corresponding positioning holes;
[0009] A tab having a mounting hole formed thereon, the tab being pressed against a side of the temperature sensing bracket facing away from the plastic bracket, the positioning post passing through the positioning hole and being inserted into the mounting hole;
[0010] The FPC acquisition board and the bar are staggeredly arranged on the side of the temperature sensing bracket away from the plastic bracket. The FPC acquisition board is provided with a temperature sensing probe, and the temperature sensing probe is clamped on the temperature sensing bracket.
[0011] Optionally, a limiting groove is provided on the temperature sensing bracket, and the temperature sensing probe is embedded in the limiting groove.
[0012] Optionally, a plurality of limiting holes are provided on the temperature sensing probe, a plurality of limiting posts corresponding to the limiting holes are provided in the limiting groove, and the limiting posts are inserted into the limiting holes on the temperature sensing probe.
[0013] Optionally, the temperature sensing bracket includes a bracket body and a connecting extension, the limiting groove and the limiting column are both arranged on the bracket body, the positioning hole is opened on the connecting extension, one end of the connecting extension is connected to the bracket body, and the other end of the connecting extension is inserted between the bar and the plastic bracket.
[0014] Optionally, the surface of the bracket body facing away from the plastic bracket is higher than the surface of the connecting edge facing away from the plastic bracket, so as to form a limiting step at the junction of the bracket body and the connecting edge, and the tab abuts against the limiting step.
[0015] Optionally, a weight-reducing structure is further provided on the bracket body, and the weight-reducing structure passes through the bracket body.
[0016] Optionally, the tab is bent to form an avoidance groove, and the convex edges located on both sides of the positioning groove are accommodated in the avoidance groove.
[0017] Optionally, the plurality of positioning posts located in the positioning groove are arranged in groups of two and are diagonally symmetrically distributed.
[0018] Optionally, the temperature sensing bracket is injection molded.
[0019] On the other hand, a battery module is also provided, which includes the CCS sampling assembly as described in any one of the above items.
[0020] Beneficial effects of the utility model:
[0021] The utility model provides a CCS sampling assembly. By providing positioning grooves on a plastic bracket and a plurality of positioning posts arranged in the positioning grooves, when assembling a temperature sensor bracket and the plastic bracket, the temperature sensor bracket is arranged in the positioning grooves, and the positioning posts are inserted into the positioning holes of the temperature sensor bracket, so as to directly realize the positioning and installation of the temperature sensor bracket, without first installing the temperature sensor bracket in a positioning tooling and then docking the temperature sensor bracket with the plastic bracket, thereby reducing the required process steps, making the production process rhythm more compact, shortening the production time, and improving the production efficiency.
[0022] The utility model also provides a battery module. By applying the above-mentioned CCS sampling assembly, the production cycle is effectively shortened, and the production efficiency of the battery module is improved. Brief Description of the Drawings
[0023] Figure 1 is a partial structure assembly drawing of the CCS sampling assembly provided by the utility model;
[0024] Figure 2 is a partial structure disassembly drawing of the CCS sampling assembly provided by the utility model;
[0025] Figure 3 is a schematic structural diagram of the plastic bracket in the CCS sampling assembly provided by the utility model;
[0026] Figure 4 is a schematic structural diagram of the temperature sensor bracket in the CCS sampling assembly provided by the utility model;
[0027] Figure 5 is a schematic structural diagram of the bus bar in the CCS sampling assembly provided by the utility model;
[0028] Figure 6 is a partial schematic structural diagram of the FPC acquisition board in the CCS sampling assembly provided by the utility model;
[0029] Figure 7 is Figure 6 an enlarged structural diagram of part A in
[0030] In the figure:
[0031] 1. Plastic bracket; 11. Positioning groove; 12. Convex edge; 13. Positioning post;
[0032] 2. Temperature sensor bracket; 21. Positioning hole; 22. Limiting groove; 23. Limiting post; 24. Bracket body; 25. Connecting edge; 26. Limiting step; 27. Weight reduction structure;
[0033] 3. Bus bar; 31. Mounting hole; 32. Avoidance groove;
[0034] 4. FPC acquisition board; 41. Temperature sensor probe; 42. Limit hole. Detailed implementation manners
[0035] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model are shown in the drawings, rather than all the structures.
[0036] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0037] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above and over", and "on the top of" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below and under", and "under the bottom of" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.
[0038] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.
[0039] With economic development and technological advancements, power batteries are widely used in industries such as electric vehicles. To ensure that power batteries operate within the specified voltage and temperature ranges, voltage and temperature signals must be collected from each battery cell in the battery module. This is typically performed by a CCS (Cells Contact System) sampling assembly. The temperature and voltage signals collected by the CCS sampling assembly are then transmitted to the battery management system for effective battery management.
[0040] Among them, the structure involved in temperature signal acquisition in the CCS sampling assembly mainly includes a plastic bracket and a temperature sensing bracket for fixing the temperature probe. It is necessary to fix the temperature sensing bracket and the bar on the plastic bracket by hot riveting. In this production, the temperature sensing bracket needs to be placed in the positioning tooling first, and then the temperature sensing bracket and the plastic bracket are docked to complete the hot riveting assembly. However, this production method requires the positioning tooling to assist in positioning the temperature sensing bracket before the temperature sensing bracket and the plastic bracket can be assembled, which leads to slow production process and low production efficiency.
[0041] Therefore, in order to reduce the number of process steps, make the production process more compact, shorten the production time, and improve production efficiency, this embodiment provides a CCS sampling assembly.
[0042] like Figures 1 to 7 As shown, the CCS sampling assembly includes a plastic bracket 1, a temperature sensing bracket 2, a bar 3 and an FPC (Flexible Printed Circuit) collection board. The plastic bracket 1 is provided with a positioning groove 11, and convex edges 12 are formed on both sides of the positioning groove 11. The plastic bracket 1 is also provided with a plurality of positioning posts 13 located in the positioning groove 11. The temperature sensing bracket 2 is provided with positioning holes 21 corresponding to the plurality of positioning posts 13 one by one. The temperature sensing bracket 2 is arranged in the positioning groove 11, and the positioning posts 13 are inserted into the corresponding positioning holes 21. A mounting hole 31 is provided on the bar 3. The bar 3 is pressed on the side of the temperature sensing bracket 2 away from the plastic bracket 1. The positioning post 13 passes through the positioning hole 21 and is inserted into the mounting hole 31. The FPC collection board 4 and the bar 3 are staggered on the side of the temperature sensing bracket 2 away from the plastic bracket 1. A temperature probe 41 is provided on the FPC collection board 4, and the temperature probe 41 is snapped onto the temperature sensing bracket 2.
[0043] By providing a positioning groove 11 on the plastic bracket 1 and a plurality of positioning posts 13 disposed within the positioning groove 11, when assembling the temperature sensor bracket 2 and the plastic bracket 1, the temperature sensor bracket 2 is disposed within the positioning groove 11, and the positioning posts 13 are inserted into the positioning holes 21 of the temperature sensor bracket 2, thereby directly achieving the positioning and installation of the temperature sensor bracket 2. There is no need to first install the temperature sensor bracket 2 into a positioning tooling and then dock the temperature sensor bracket 2 with the plastic bracket 1, thus reducing the required process steps, making the production process beat more compact, shortening the production time, and improving production efficiency.
[0044] The CCS sampling assembly can be used in a variety of different types of battery modules, such as blade battery modules, square shell battery modules, or large cylindrical battery modules. The plastic bracket 1 is fabricated using a thermoforming process to simultaneously form the positioning groove 11 and a plurality of positioning posts 13 on the plastic bracket 1. The number of positioning posts 13 can be freely set according to requirements. In this embodiment, two positioning posts 13 are provided within the positioning groove 11 of the plastic bracket 1. Each positioning post 13 is connected to a bus bar 3. The FPC acquisition board 4 is located between the two bus bars 3. The temperature sensor bracket 2 is pressed against the plastic bracket 1 by the two bus bars 3. After the bus bars 3 are thermally riveted to the plastic bracket 1, the temperature sensor bracket 2 is fixedly connected to the plastic bracket 1.
[0045] Optionally, as Figure 4 , Figure 6 shown, a limiting groove 22 is provided on the temperature sensor bracket 2, and the temperature sensor probe 41 is embedded in the limiting groove 22. By providing the limiting groove 22 on the temperature sensor bracket 2, it is convenient to limit and fix the temperature sensor probe 41, preventing the temperature sensor probe 41 from moving freely and affecting the connection between the temperature sensor probe 41 and the FPC acquisition board 4. In this embodiment, the temperature sensor probe 41 has various specifications and models, and the external structures of the temperature sensor probes 41 with different specifications and models are different. Therefore, it is necessary to ensure that the groove shape of the limiting groove 22 matches the external shape of the temperature sensor probe 41.
[0046] Optionally, as Figure 4 , Figure 6 shown, a plurality of limiting holes 42 are provided on the temperature sensor probe 41, and a plurality of limiting posts 23 corresponding to the limiting holes 42 one by one are provided within the limiting groove 22. The limiting posts 23 are inserted into the limiting holes 42 on the temperature sensor probe 41. By providing the limiting posts 23 corresponding to the limiting holes 42 on the temperature sensor probe 41 one by one within the limiting groove 22, it is convenient to position and fix the temperature sensor probe 41 when the temperature sensor probe 41 is inserted into the limiting groove 22, ensuring the accuracy of the connection position of the temperature sensor probe 41. The number of limiting posts 23 within the limiting groove 22 should be determined according to the actual number of limiting holes 42 provided on the temperature sensor probe 41. In this embodiment, two limiting holes 42 are provided on this type of temperature sensor probe 41, so two limiting posts 23 are provided within the limiting groove 22.
[0047] Optionally, as Figure 2 , Figure 4 shown, the temperature-sensitive bracket 2 includes a bracket body 24 and a connecting extension 25. The limiting groove 22 and the limiting post 23 are both provided on the bracket body 24, and the positioning hole 21 is opened on the connecting extension 25. One end of the connecting extension 25 is connected to the bracket body 24, and the other end of the connecting extension 25 is inserted between the barium piece 3 and the plastic bracket 1. By providing the connecting extension 25, a connecting area is provided for the connection between the temperature-sensitive bracket 2, the barium piece 3 and the plastic bracket 1, and interference between this connecting area and the connecting area between the temperature-sensitive bracket 2 and the temperature-sensitive probe 41 is avoided.
[0048] In this embodiment, connecting extensions 25 are respectively connected to both sides of the bracket body 24. The connecting extensions 25 located on both sides of the bracket body 24 are respectively inserted between the barium piece 3 and the plastic bracket 1 to fix both sides of the temperature-sensitive bracket 2, thereby ensuring the reliability of the fixation of the temperature-sensitive bracket 2.
[0049] Optionally, as Figure 2 , Figure 4 shown, the surface of the bracket body 24 facing away from the plastic bracket 1 is higher than the surface of the connecting extension 25 facing away from the plastic bracket 1, so as to form a limiting step 26 at the junction of the bracket body 24 and the connecting extension 25, and the barium piece 3 abuts against the limiting step 26. By making the surface of the bracket body 24 facing away from the plastic bracket 1 higher than the surface of the connecting extension 25 facing away from the plastic bracket 1, the limiting step 26 abutting against the barium piece 3 is formed. When the barium piece 3 is assembled with the temperature-sensitive bracket 2, on the one hand, the barium piece 3 is positioned by using the limiting step 26 to ensure the accuracy of the connection position between the barium piece 3 and the temperature-sensitive bracket 2, and on the other hand, the barium piece 3 is limited by using the limiting step 26 to ensure that the barium piece 3 will not move relative to the temperature-sensitive bracket 2 during assembly.
[0050] Optionally, as Figure 4 shown, a weight-reducing structure 27 is also provided on the bracket body 24, and the weight-reducing structure 27 penetrates the bracket body 24. By providing the weight-reducing structure 27 on the bracket body 24, while ensuring the structural strength of the bracket body 24 itself, the weight of the bracket body 24 is reduced, thereby realizing the lightweight design of the temperature-sensitive bracket 2. In this embodiment, the shape of the weight-reducing structure 27 penetrating the bracket body 24 can be freely set according to requirements, and can be a regular structure or an irregular structure.
[0051] Optionally, as Figure 3 , Figure 5As shown, the bus bar 3 is bent to form an avoidance groove 32, and the convex edges 12 on both sides of the positioning groove 11 are received in the avoidance groove 32. Since the plastic bracket 1 is recessed to form the positioning groove 11, convex edges 12 will be formed on both sides of the positioning groove 11. By bending the bus bar 3 to form the avoidance groove 32, interference between the bus bar 3 and the convex edges 12 during assembly can be avoided.
[0052] Optionally, as Figure 3 shown, a plurality of positioning posts 13 located in the positioning groove 11 are symmetrically distributed in a diagonal pattern in groups of two. By arranging the plurality of positioning posts 13 in groups of two and symmetrically distributing them diagonally, the force on each positioning post 13 can be ensured to be uniform. In this embodiment, since only two positioning posts 13 are provided, the two positioning posts 13 are evenly distributed diagonally on both sides of the plastic bracket 1.
[0053] Optionally, the temperature sensing bracket 2 is injection molded. By using the injection molding process to manufacture the temperature sensing bracket 2, the positioning holes 21, the limiting grooves 22, the limiting posts 23, the limiting steps 26, and the weight reduction structure 27 can be formed on the temperature sensing bracket 2 at the same time.
[0054] In this embodiment, a battery module is further provided, and the battery module includes the above-mentioned CCS sampling assembly. By applying the above-mentioned CCS sampling assembly, the manufacturing cycle is effectively shortened, and the production efficiency of the battery module is improved.
[0055] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments, and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.
Claims
1. CCS sampling assembly, characterized in that, The CCS sampling assembly includes: A plastic bracket, wherein the plastic bracket has a positioning groove formed inwardly, and convex edges are formed on both sides of the positioning groove. The plastic bracket is also provided with a plurality of positioning posts located in the positioning groove; A temperature sensing bracket, wherein positioning holes corresponding to the plurality of positioning posts are formed on the temperature sensing bracket, the temperature sensing bracket is arranged in the positioning groove, and the positioning posts are inserted into the corresponding positioning holes; A tab having a mounting hole formed thereon, the tab being pressed against a side of the temperature sensing bracket facing away from the plastic bracket, the positioning post passing through the positioning hole and being inserted into the mounting hole; The FPC acquisition board and the bar are staggeredly arranged on the side of the temperature sensing bracket away from the plastic bracket. The FPC acquisition board is provided with a temperature sensing probe, and the temperature sensing probe is clamped on the temperature sensing bracket.
2. The CCS sampling assembly according to claim 1, wherein The temperature sensing bracket is provided with a limiting groove, and the temperature sensing probe is embedded in the limiting groove.
3. The CCS sampling assembly according to claim 2, wherein, The temperature sensing probe is provided with a plurality of limiting holes, the limiting groove is provided with a plurality of limiting posts corresponding to the limiting holes one by one, and the limiting posts are inserted into the limiting holes on the temperature sensing probe.
4. The CCS sampling assembly according to claim 3, wherein, The temperature sensing bracket includes a bracket body and a connecting extension. The limiting groove and the limiting column are both arranged on the bracket body. The positioning hole is opened on the connecting extension. One end of the connecting extension is connected to the bracket body, and the other end of the connecting extension is inserted between the bar and the plastic bracket.
5. The CCS sampling assembly according to claim 4, wherein The surface of the bracket body facing away from the plastic bracket is higher than the surface of the connecting edge facing away from the plastic bracket, so as to form a limiting step at the junction of the bracket body and the connecting edge, and the tab abuts against the limiting step.
6. The CCS sampling assembly according to claim 4, characterized in that, The bracket body is also provided with a weight-reducing structure, which passes through the bracket body.
7. The CCS sampling assembly according to claim 1, wherein The bar is bent to form an avoidance groove, and the convex edges located on both sides of the positioning groove are accommodated in the avoidance groove.
8. The CCS sampling assembly according to claim 1, characterized in that, The plurality of positioning posts located in the positioning groove are arranged in groups of two and are symmetrically distributed along a diagonal line.
9. The CCS sampling assembly according to claim 1, wherein, The temperature sensing bracket is injection molded.
10. Battery module, characterized in that, The battery module includes the CCS sampling assembly according to any one of claims 1 to 9.