Temperature sensing bracket and battery pack

Abstract

The utility model provides a kind of temperature sensing support, belong to battery pack technical field, including support body, the upper surface of support body is provided with the support hole and installation slot of the penetration support body, the upper surface of support body is provided with support limiting post, and the support hole is located between installation slot and support limiting post;The temperature sensing support of the utility model does not utilize battery pole limiting, can be applicable to different types of battery, in no tray scheme, the temperature sensing support is assembled using support limiting post;In the tray scheme, the support is assembled by the auxiliary of support hot riveting column, can be used in the tray and no tray two kinds of scheme simultaneously. Above all, the application scenario of the support is extremely extensive.

Description

Technical Field

[0001] This utility model belongs to the field of battery pack technology, and specifically relates to a temperature-sensing bracket and battery pack. Background Technology

[0002] The electric vehicle market is shifting from a growth market to a replacement market. In order to continuously improve the cost-effectiveness of products, it is necessary to continuously optimize the structure of parts and reduce product costs. Therefore, it is necessary to make the product structure as simple as possible and to be repeatedly used in different models of electric vehicles to achieve versatility and reduce research and development and manufacturing costs.

[0003] Because the thickness of the battery cell terminals varies in different vehicle models, and some models require the installation of a tray while others do not, the temperature sensor mounted on the battery cell needs to be fixed with various different temperature sensor brackets to adapt to different electric vehicles.

[0004] To solve the above problems, a temperature-sensing bracket that can adapt to various situations needs to be designed. Utility Model Content

[0005] To address the aforementioned problems, this utility model proposes a temperature-sensing bracket, comprising a bracket body, wherein the upper surface of the bracket body is provided with a bracket hole and a mounting groove penetrating the bracket body, and a bracket limiting post is provided on the upper surface of the bracket body, and the bracket hole is located between the mounting groove and the bracket limiting post.

[0006] Furthermore, the temperature sensing bracket also includes a cover plate, which is hinged to the side of the mounting groove near the bracket hole. The side of the cover plate away from the bracket hole is provided with a claw structure, which engages with the edge of the mounting groove.

[0007] Furthermore, the temperature-sensing bracket further includes foam, and the foam is mounted on the lower surface of the bracket body.

[0008] A battery pack includes an FPC, an aluminum busbar, a battery cell, and the aforementioned temperature-sensing bracket. The FPC, the temperature-sensing bracket, and the aluminum busbar are sequentially mounted on the battery cell. The FPC is mounted on the side of the battery cell away from the aluminum busbar. The aluminum busbar is electrically connected to the battery cell, and the FPC is electrically connected to the aluminum busbar. A temperature sensor is disposed on the FPC, and the temperature sensor is in contact with the battery cell and is mounted in a mounting groove in the bracket body.

[0009] Furthermore, a support plate is provided on the outside of the temperature sensor, and the support plate is located in the mounting groove.

[0010] Furthermore, the aluminum busbar is provided with a limiting hole and a pole mounting hole. The limiting hole is fixedly installed on the limiting post of the bracket, and the pole mounting hole is fixedly installed on the pole of the battery cell, and the pole of the battery cell is electrically connected to the aluminum busbar.

[0011] A battery pack includes an FPC, an aluminum busbar, a battery cell, a tray, and the aforementioned temperature-sensing bracket. The battery cell is sequentially mounted with the tray, FPC, temperature-sensing bracket, and aluminum busbar. The aluminum busbar is electrically connected to the battery cell. The FPC is mounted on the side of the tray away from the aluminum busbar, and the outer edge of the aluminum busbar abuts against a limiting post of the bracket. The FPC is electrically connected to the aluminum busbar. A temperature sensor is disposed on the FPC, and the temperature sensor passes through a groove in the tray to contact the battery cell. The temperature sensor is also mounted in a mounting groove in the bracket body.

[0012] Furthermore, a support plate is provided on the outside of the temperature sensor, and the support plate is located in the mounting groove.

[0013] Furthermore, the bracket body is provided with bracket hot riveting columns, which are located on both sides of the mounting groove; a U-shaped support plate is installed on the bracket hot riveting column, and the U-shaped support plate abuts against the support plate.

[0014] Furthermore, the tray includes a tray hot riveting post, which is fixedly installed in the bracket hole.

[0015] Beneficial effects:

[0016] 1. The temperature sensing bracket of this utility model does not utilize cell terminal posts for limiting, making it suitable for different types of cells. In trayless designs, the temperature sensing bracket is assembled using bracket limiting posts; in tray-supported designs, the bracket is assembled with the assistance of bracket hot riveting posts, enabling its use in both tray-supported and trayless designs simultaneously. In summary, the application scenarios of this bracket are extremely wide.

[0017] 2. The temperature sensing bracket of this utility model includes a bracket body. In the trayless design, the bracket limiting post of the bracket body is connected to the aluminum strip. In the tray-supported design, the bracket hot-riveting post on the bracket body provides a fixing structure for the temperature sensor. Since there are multiple pairs of bracket hot-riveting posts, the position of the temperature sensor can be adjusted accordingly. It is applicable to both trayless and tray-supported designs, thus improving the versatility of the bracket body.

[0018] 3. The temperature sensor bracket of this utility model is designed with a bracket limiting post. In the trayless design, the bracket limiting post cooperates with the limiting hole of the aluminum strip, thereby limiting the temperature sensor bracket. At the same time, the height of the bracket limiting post will not exceed the thickness of the aluminum strip, so it will not affect the welding of the nickel sheet. In the tray-type design, the bracket limiting post contacts the edge of the nickel sheet, providing a limit for the temperature sensor bracket.

[0019] 4. In the trayless design of this utility model, the temperature sensor bracket uses three parts: a cover plate, a bracket body, and foam. In the trayless design, the temperature sensor can be observed through the observation hole. The bracket limiting post will cooperate with the aluminum strip to limit the temperature sensor bracket. The bracket hole serves as an observation hole for the foam to observe whether the foam has fallen off.

[0020] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the temperature-sensing bracket in Embodiment 1 of this utility model is shown.

[0023] Figure 2 An exploded view of the temperature-sensing bracket in Embodiment 1 of this utility model is shown.

[0024] Figure 3 A schematic diagram of the battery pack in Embodiment 2 of this utility model is shown.

[0025] Figure 4 An exploded schematic diagram of the battery pack in Embodiment 2 of this utility model is shown.

[0026] Figure 5 A schematic diagram of the battery cell and temperature sensing bracket in the battery pack of Embodiment 2 of this utility model is shown.

[0027] Figure 6 A schematic diagram of the battery pack in Embodiment 3 of this utility model is shown.

[0028] Figure 7 This diagram shows another angle view of the battery pack in Embodiment 3 of the present invention.

[0029] Figure 8 An exploded view of the battery pack in Embodiment 3 of this utility model is shown.

[0030] In the diagram, 1 is the cover plate; 11 is the observation hole.

[0031] 2. Bracket body; 21. Bracket limiting post; 22. Bracket hole; 23. Bracket hot riveting post; 24. Mounting groove;

[0032] 3. Foam;

[0033] 4. FPC; 41. Nickel sheet; 42. Support plate; 43. Temperature sensor; 44. U-shaped support plate;

[0034] 5. Aluminum busbar; 51. Limiting hole; 52. Pole post mounting hole;

[0035] 6. Battery cell; 61. Battery cell terminal;

[0036] 7. Pallet; 71. Pallet hot riveting column. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0038] Example 1,

[0039] refer to Figure 1 A temperature-sensing bracket includes a bracket body 2. The upper surface of the bracket body 2 has a bracket hole 22 and a mounting groove 24 penetrating through the bracket body 2. A bracket limiting post 21 is also provided on the upper surface of the bracket body 2, and the bracket hole 22 is located between the mounting groove 24 and the bracket limiting post 21. Specifically, in a design without a tray 7, the bracket hole 22 serves as an observation hole for the foam 3 to observe whether the foam 3 has detached; in a design with a tray 7, it serves as a fixing hole for the tray hot-riveting post 71, cooperating with the tray hot-riveting post 71 to limit the position of the tray 7.

[0040] refer to Figure 1 The temperature-sensing bracket also includes a cover plate 1. The cover plate 1 is hinged to the side of the mounting groove 24 near the bracket hole 22. A claw structure is provided on the side of the cover plate 1 away from the bracket hole 22, and the claw structure engages with the edge of the mounting groove 24. Specifically, the cover plate 1 and the bracket body 2 cooperate through the hinge structure, allowing the cover plate 1 to open and close freely in the mounting groove 24 of the bracket body 2. The cover plate 1 also has a claw structure, which locks the cover plate 1 into the bracket body 2 after it is closed, thereby completely fixing the cover plate 1 in the mounting groove 24.

[0041] Furthermore, in the scheme with tray 7, bracket body 2 is used, cover plate 1 is used selectively, foam 3 is not used, bracket hole 22 is used as assembly hole, and it cooperates with tray hot riveting column 71 on tray 7. After the tray hot riveting column 71 is hot-pressed, tray 7 is fixed; bracket hot riveting column 23 fixes the U-shaped support plate 44 by hot riveting, thereby fixing temperature sensor 43.

[0042] refer to Figure 2 The temperature-sensing bracket also includes foam 3, which is installed on the lower surface of the bracket body 2. Specifically, the foam 3 has a certain amount of compression and is attached to the bottom of the bracket body 2.

[0043] Example 2,

[0044] refer to Figure 3 A battery pack comprising FPC4, aluminum busbar 5, and battery cell 6 (reference) Figure 5 The temperature-sensing bracket of Example 1 is used in this embodiment. An FPC4, a temperature-sensing bracket, and an aluminum busbar 5 are sequentially mounted on the battery cell 6. The FPC4 is mounted on the side of the battery cell 6 away from the aluminum busbar 5. The aluminum busbar 5 is electrically connected to the battery cell 6, and the FPC4 and the aluminum busbar 5 are electrically connected via a nickel strip 41. A temperature sensor 43 is mounted on the FPC4, contacting the battery cell 6, and is installed in the mounting groove 24 of the bracket body 2. The temperature-sensing bracket is used to house and protect the temperature sensor 43, thereby preventing damage to the temperature sensor 43.

[0045] Specifically, FPC (Flexible Printed Circuit) is a thin, lightweight circuit board that can be bent and folded. It consists of a flexible insulating substrate (such as polyimide PI) and conductive copper foil, with conductive lines formed through an etching process. In battery systems, FPCs are mainly used for electrical signal transmission, battery status monitoring, and connecting components, making them key components for achieving battery intelligence and lightweight design.

[0046] refer to Figure 4 A support plate 42 is provided on the outside of the temperature sensor 43, and the support plate 42 is located in the mounting groove 24. The support plate 42 is used to limit the temperature sensor 43 and prevent the bracket body 2 from directly contacting the temperature sensor 43, thereby protecting the temperature sensor 43.

[0047] refer to Figure 4 The aluminum busbar 5 is provided with a limiting hole 51 and a terminal mounting hole 52. The limiting hole 51 is fixedly installed on the bracket limiting post 21, and the terminal mounting hole 52 is fixedly installed on the battery terminal 61 of the battery cell 6, and the battery terminal 61 is electrically connected to the aluminum busbar 5. The bracket limiting post 21 of the bracket body 2 cooperates with the limiting hole 51. At the same time, after the terminal mounting hole 52 is welded to the battery terminal 61, the aluminum busbar 5 presses down the temperature sensing bracket, thereby realizing the fixation of the temperature sensing bracket.

[0048] In the above embodiments, another optional implementation is as follows: Figure 3 This is a schematic diagram of the temperature sensor bracket assembly without a tray 7. In the trayless design, the temperature sensor bracket includes a cover plate 1, a bracket body 2, and foam 3. The temperature sensor bracket is placed on the upper surface of the battery cell 6, and is pressed onto the battery cell 6 by the aluminum busbar 5. The bracket limiting post 21 of the bracket body 2 cooperates with the limiting hole 51. Simultaneously, after the electrode mounting hole 52 is welded to the battery cell electrode 61, the aluminum busbar 5 presses down on the temperature sensor bracket, compressing the foam 3 at the bottom of the temperature sensor bracket, so that the temperature sensor 43 is attached to the battery cell 6, thus fixing the temperature sensor 43. The nickel sheet 41 is welded to the aluminum busbar 5. Since the height of the bracket limiting post 21 is less than or equal to the thickness of the aluminum busbar 5, the bracket limiting post 21 has little impact on the welding of the nickel sheet 41. Temperature sensor 43 extends from FPC4 and is placed in mounting groove 24 of bracket body 2. Support plate 42 is higher than temperature sensor 43, which serves to fix and protect temperature sensor 43. When cover plate 1 is closed, support plate 42 and temperature sensor 43 are pressed down together, so that temperature sensor 43 is attached to the upper surface of cell 6, thus fixing temperature sensor 43. Bracket hole 22 serves as foam observation hole, which can be used to observe whether foam 3 has fallen off after support plate 42 is assembled, which is convenient for product off-line testing.

[0049] Example 3,

[0050] refer to Figure 6 A battery pack includes an FPC4, an aluminum busbar 5, a battery cell 6, a tray 7, and a temperature-sensing bracket as described in Embodiment 1. The tray 7, FPC4, temperature-sensing bracket, and aluminum busbar 5 are sequentially mounted on the battery cell 6. The aluminum busbar 5 is electrically connected to the battery cell 6. The FPC4 is mounted on the tray 7 on the side away from the aluminum busbar 5, with the outer edge of the aluminum busbar 5 abutting against a bracket limiting post 21. The FPC4 is electrically connected to the aluminum busbar 5. A temperature sensor 43 is disposed on the FPC4, passing through a groove in the tray 7 to contact the battery cell 6, and is mounted in a mounting groove 24 of the bracket body 2. The bracket limiting post 21 on the bracket body 2 is attached to the edge of the aluminum busbar 5, neither affecting the welding of the aluminum busbar 5 nor restricting the movement of the temperature-sensing bracket.

[0051] refer to Figure 7 A support plate 42 is provided on the outside of the temperature sensor 43, and the support plate 42 is located in the mounting groove 24. The support plate 42 is used to limit the temperature sensor 43 and prevent the bracket body 2 from directly contacting the temperature sensor 43, thereby protecting the temperature sensor 43.

[0052] Furthermore, the bracket body 2 is provided with bracket hot riveting posts 23, which are located on both sides of the mounting groove 24; a U-shaped support plate 44 is installed on the bracket hot riveting post 23, and the U-shaped support plate 44 abuts against the support plate 42. The U-shaped support plate 44 cooperates with the bracket hot riveting post 23 on the bracket body 2. After the bracket hot riveting post 23 is hot riveted, it presses down and fixes the U-shaped support plate 44. At the same time, the U-shaped support plate 44 presses down the support plate 42 and then the temperature sensor 43, so that the temperature sensor 43 is attached to the surface of the cell 6, thus completing the fixation of the temperature sensor 43.

[0053] refer to Figure 8 The tray 7 includes a tray hot riveting post 71, which is fixedly installed in the bracket hole 22. At this time, the bracket hole 22 serves as a fixing hole for the tray hot riveting post 71, and the positioning of the bracket body 2 is completed after the tray hot riveting post 71 is hot riveted.

[0054] In the above embodiments, another optional implementation is as follows: Figure 6 This is a schematic diagram of the assembly of a temperature sensing bracket with tray 7. Only a partial area of ​​tray 7 is shown in the diagram. The battery cell 6 is located at the bottom of tray 7. An opening or groove is formed at the bottom of tray 7 in the area where the temperature sensor 43 is located. In the tray 7 configuration, the temperature sensing bracket uses bracket body 2, and cover plate 1 is selectively used; foam 3 is not used. Tray 7 has a groove that mates with bracket body 2. A tray hot-riveting post 71 is positioned in the center of the groove. After bracket body 2 is placed into the groove of tray 7, the tray hot-riveting post 71 passes through bracket hole 22. At this time, bracket hole 22 acts as a fixing hole for tray hot-riveting post 71. After the tray hot-riveting post 71 is hot-riveted, the bracket body 2 is positioned. In this design, the temperature sensor 43 is also led out from the FPC4 and placed into the mounting slot 24 of the bracket body 2. The U-shaped support plate 44 cooperates with the bracket hot riveting post 23 on the bracket body 2. After the bracket hot riveting post 23 is hot riveted, the U-shaped support plate 44 is pressed down and fixed. At the same time, the U-shaped support plate 44 presses down the temperature sensor 43, so that the temperature sensor 43 is attached to the surface of the battery cell 6, thus completing the fixation of the temperature sensor 43. When the U-shaped support plate 44 is not used, the temperature sensor 43 can also be pressed down by using the cover plate 1. The aluminum busbar 5 is fixed on the tray 7 and presses down on the bracket body 2, further restricting the Z-axis (vertically upward) movement of the bracket body 2. Meanwhile, the bracket limiting post 21 on the bracket body 2 is attached to the edge of the aluminum busbar 5, which does not affect the welding of the aluminum busbar 5 and also restricts the movement of the temperature sensor bracket.

[0055] The temperature sensing bracket of this utility model includes a bracket body 2. In the trayless design, the temperature sensing bracket uses a hinge structure, which facilitates the installation of the temperature sensor 43 and improves production efficiency. In the trayless design, the temperature sensing bracket can also use a cover plate 1, which has an observation hole 11, allowing for easy observation of the temperature sensor 43 when the cover plate 1 is closed. In the design with a tray 7, the bracket hot-riveting posts 23 on the bracket body 2 provide a fixing structure for the temperature sensor 43. Since there are multiple pairs of bracket hot-riveting posts 23, the position of the temperature sensor 43 can be adjusted accordingly, making it applicable to both trayless and trayless designs, thus improving the versatility of the bracket body 2.

[0056] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A temperature-sensing bracket, characterized in that, Includes a bracket body (2), the upper surface of which is provided with a bracket hole (22) and a mounting groove (24) penetrating the bracket body (2), and a bracket limiting post (21) is provided on the upper surface of the bracket body (2), and the bracket hole (22) is located between the mounting groove (24) and the bracket limiting post (21).

2. The temperature-sensing bracket according to claim 1, characterized in that, The temperature sensing bracket also includes a cover plate (1), which is hinged to the side of the mounting groove (24) near the bracket hole (22). A claw structure is provided on the side of the cover plate (1) away from the bracket hole (22), and the claw structure engages with the edge of the mounting groove (24).

3. A temperature-sensing bracket according to claim 1 or 2, characterized in that, The temperature-sensing bracket also includes foam (3), which is mounted on the lower surface of the bracket body (2).

4. A battery pack, characterized in that, The device includes an FPC (4), an aluminum busbar (5), a battery cell (6), and a temperature-sensing bracket as described in any one of claims 1-3. The battery cell (6) is sequentially mounted with the FPC (4), the temperature-sensing bracket, and the aluminum busbar (5). The FPC (4) is mounted on the side of the battery cell (6) away from the aluminum busbar (5). The aluminum busbar (5) is electrically connected to the battery cell (6), and the FPC (4) is electrically connected to the aluminum busbar (5). A temperature sensor (43) is provided on the FPC (4). The temperature sensor (43) is in contact with the battery cell (6), and the temperature sensor (43) is mounted in the mounting groove (24) of the bracket body (2).

5. A battery pack according to claim 4, characterized in that, The temperature sensor (43) is provided with a support plate (42) on its outer side, and the support plate (42) is located in the mounting groove (24).

6. A battery pack according to claim 4, characterized in that, The aluminum busbar (5) is provided with a limiting hole (51) and a pole mounting hole (52). The limiting hole (51) is fixedly installed on the bracket limiting post (21), and the pole mounting hole (52) is fixedly installed on the pole post (61) of the battery cell (6). The pole post (61) is electrically connected to the aluminum busbar (5).

7. A battery pack, characterized in that, The device includes an FPC (4), an aluminum busbar (5), a battery cell (6), a tray (7), and a temperature-sensing bracket as described in any one of claims 1-2. The battery cell (6) is sequentially mounted with the tray (7), the FPC (4), the temperature-sensing bracket, and the aluminum busbar (5). The aluminum busbar (5) is electrically connected to the battery cell (6). The FPC (4) is mounted on the tray (7) on the side away from the aluminum busbar (5). The outer edge of the aluminum busbar (5) abuts against the bracket limiting post (21). The FPC (4) is electrically connected to the aluminum busbar (5). A temperature sensor (43) is provided on the FPC (4). The temperature sensor (43) passes through the groove of the tray (7) and contacts the battery cell (6). The temperature sensor (43) is mounted in the mounting groove (24) of the bracket body (2).

8. A battery pack according to claim 7, characterized in that, The temperature sensor (43) is provided with a support plate (42) on its outer side, and the support plate (42) is located in the mounting groove (24).

9. A battery pack according to claim 8, characterized in that, The bracket body (2) is provided with bracket hot riveting columns (23), which are located on both sides of the mounting groove (24); the bracket hot riveting columns (23) are installed on the bracket hot riveting columns (23), and the spiral support plate (44) abuts against the support plate (42).

10. A battery pack according to claim 7, characterized in that, The tray (7) includes a tray hot riveting post (71), which is fixedly installed in the bracket hole (22).

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