Battery pack and electric device

Abstract

This application discloses a battery pack and electrical device, belonging to the field of battery technology. The battery pack includes a housing, a base, a first electrical module, and a second electrical module. The housing has a receiving cavity, and the base is disposed in the receiving cavity. The base has a first side and a second side. The base has a receiving groove on the first side and a mounting surface on the second side. The base has a wiring port communicating with the receiving groove. The first electrical module is disposed on the mounting surface; the second electrical module is disposed in the receiving groove, with the wiring terminal of the second electrical module facing the wiring port. The mounting surface and the second direction form an angle. The mounting surface has a first end and a second end disposed opposite to each other in the second direction. The first end is closer to the wiring port, and the distance between the mounting surface and the second electrical module gradually decreases from the first end to the second end in the first direction. This application helps to simplify the installation structure of the electrical modules in the battery pack and improves the visibility and convenience of electrical module wiring maintenance.

Description

Technical Field

[0001] This application belongs to the field of battery technology, specifically relating to a battery pack and electrical equipment. Background Technology

[0002] In addition to the batteries arranged in groups, the battery pack also needs to be equipped with electrical modules for battery control. Due to differences in shape and size, sufficient installation space is usually reserved within the battery pack for each electrical module to be installed sequentially along the same mounting surface. This can easily lead to wasted space and low space utilization within the battery pack. Utility Model Content

[0003] The purpose of this utility model is to provide a battery pack to solve the above-mentioned technical problems; another purpose of this application is to provide an electrical device that uses the above-mentioned battery pack.

[0004] Technical solution: A battery pack according to an embodiment of this application, the battery pack having a first direction and a second direction perpendicular to each other, the battery pack comprising:

[0005] The box-shaped enclosure has a receiving cavity;

[0006] A base is disposed in the receiving cavity. The base has a first side and a second side in the first direction. The base has a receiving groove on the first side and a mounting surface on the second side. The base has a wiring port communicating with the receiving groove in the second direction.

[0007] The first electrical module is disposed on the mounting surface;

[0008] A second electrical module is disposed in the receiving slot, with the wiring terminals of the second electrical module facing the wiring port;

[0009] The mounting surface is inclined relative to the second direction, and the mounting surface has a first end and a second end that are opposite to each other in the second direction. The first end is located close to the wiring port, and the distance between the mounting surface and the second electrical module in the first direction gradually decreases from the first end to the second end.

[0010] In some embodiments, the substrate includes a substrate and a protrusion protruding from the substrate, the substrate being detachably connected to the housing, the mounting surface being located on the side of the protrusion facing away from the substrate in the first direction, and the protrusion forming the receiving groove, and at least a portion of the wiring port penetrating the protrusion in the second direction.

[0011] In some embodiments, the protrusion has a first wall and a second wall disposed opposite to each other in the second direction, the first wall and the second wall being spaced apart, and the wiring port being disposed through the first wall.

[0012] In some embodiments, the protrusion includes a raised sub-part and an inclined sub-part, the raised sub-part is connected to the substrate, the inclined sub-part protrudes from the side of the raised sub-part away from the substrate, and the mounting surface is disposed on the side of the inclined sub-part away from the raised sub-part.

[0013] In some embodiments, the mounting surface is provided with a groove, and the inclined sub-part has a boss formed on the side facing the second electrical module corresponding to the groove.

[0014] In some embodiments, at least two of the inclined sub-part, the protruding sub-part, and the substrate are integrally formed.

[0015] In some embodiments, the protrusion has a third wall and a maintenance opening disposed opposite to each other in a third direction. The third wall is connected to the first wall and the second wall respectively, and the maintenance opening is connected to the receiving groove. The third direction is perpendicular to both the first direction and the second direction.

[0016] In some embodiments, at least a portion of the substrate is disposed around the protrusion, and the substrate is provided with a plurality of mounting holes distributed around the protrusion.

[0017] In some embodiments, the wiring ports are provided in multiple ways, and at least some of the wiring ports are arranged at intervals along a third direction, which is perpendicular to both the first direction and the second direction.

[0018] Accordingly, the electrical device described in this application includes the aforementioned battery pack.

[0019] Beneficial Effects: The battery pack of this application embodiment includes a housing, a base, a first electrical module, and a second electrical module. The housing has a receiving cavity, and the base is disposed in the receiving cavity. The base has a first side and a second side. The base has a receiving groove on the first side and a mounting surface on the second side. The base has a wiring port communicating with the receiving groove. The first electrical module is disposed on the mounting surface; the second electrical module is disposed in the receiving groove, with the wiring terminal of the second electrical module facing the wiring port. The mounting surface is inclined relative to the second direction (i.e., the mounting surface and the second direction form an angle). The mounting surface has a first end and a second end that are opposite to each other in the second direction. The first end is close to the wiring port, and the distance between the mounting surface and the second electrical module gradually decreases from the first end to the second end in the first direction. The base provides centralized mounting of the first and second electrical modules through the receiving groove and the mounting surface, which helps to simplify the mounting structure of the first and second electrical modules in the receiving cavity. The receiving groove covers the second electrical module, and the wiring port facilitates wiring of the second electrical module. The distance between the first end of the mounting surface and the second electrical module in the first direction is greater than the distance between the second end of the mounting surface and the second electrical module in the first direction. This allows the first electrical module to be tilted upward relative to the wiring port. As a result, the angle formed by the mounting surface and the second direction helps to reduce the impact of the first electrical module on the wiring of the second electrical module, and improves the visibility and convenience of wiring maintenance of the second electrical module. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the battery pack housing and base mounting structure according to an embodiment of this application;

[0022] Figure 2 This is a schematic diagram of the battery pack structure according to an embodiment of this application;

[0023] Figure 3 This is an exploded structural diagram of the battery pack according to an embodiment of this application;

[0024] Figure 4 This is a schematic diagram of the structure of the substrate in an embodiment of this application;

[0025] Figure 5 This is a cross-sectional view of the base, the first electrical module, and the second electrical module according to an embodiment of this application;

[0026] Figure 6 This is a side view of the substrate along a third direction in an embodiment of this application.

[0027] Reference numerals: 1. Base; 10. First side; 11. Second side; 12. Substrate; 120. Mounting hole; 13. Protrusion; 130. Raised sub-part; 131. Inclined sub-part; 132. Receiving groove; 133. Mounting surface; 1330. First end; 1331. Second end; 134. Maintenance port; 135. First wall; 136. Second wall; 137. Third wall; 138. Groove; 139. Boss; 14. Wiring port; 2. First electrical module; 20. First terminal; 3. Second electrical module; 30. Second terminal; 4. Housing; 40. Receiving cavity; X. First direction; Y. Second direction; Z. Third direction. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0029] In the description of this application, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, and "at least one" can mean one, two, or more, unless otherwise explicitly specified. "Perpendicular" means completely perpendicular to 90° or almost completely perpendicular; for example, an angle between 85° and 95° is considered perpendicular.

[0030] Currently, in addition to the batteries, battery packs also require electrical modules for battery control. Because these electrical modules vary in shape and size, sufficient installation space must be reserved within the battery pack to allow for their sequential installation along the same mounting surface. However, this ample installation space can easily lead to wasted space within the battery pack, reducing its space utilization and consequently affecting its energy density.

[0031] In view of this, refer to Figures 1 to 6This application discloses a battery pack designed to solve at least one of the aforementioned technical problems.

[0032] Reference Figures 1 to 6 The battery pack includes a housing 4, a base 1, a first electrical module 2, and a second electrical module 3.

[0033] It should be noted that the following embodiments introduce a first direction X, a second direction Y, and a third direction Z that are perpendicular to each other. The first direction X is approximately parallel to the thickness direction of the substrate 1, the second direction Y is approximately parallel to the width direction of the substrate 1, and the third direction Z is approximately parallel to the length direction of the substrate 1.

[0034] The housing 4 has a receiving cavity 40, and the base 1 is disposed in the receiving cavity 40. It is understood that, in this embodiment, as... Figure 1 The example illustrates the arrangement of the base 1, the first electrical module 2, and the second electrical module 3 within the receiving cavity 40. In other embodiments, the arrangement of the base 1, the first electrical module 2, and the second electrical module 3 can be flexibly adjusted as needed, which will not be elaborated here.

[0035] The base 1 has a first side 10 and a second side 11 in the first direction X. The base 1 has a receiving groove 132 on the first side 10 and a mounting surface 133 on the second side 11. The base 1 has a wiring port 14 in the second direction Y that connects to the receiving groove 132. A first electrical module 2 is disposed on the mounting surface 133, and a second electrical module 3 is disposed on the receiving groove 132. The wiring terminal of the second electrical module 3 faces the wiring port 14. The mounting surface 133 and the second direction Y form an angle α, satisfying 90°>α>0 (i.e., the mounting surface 133 is inclined relative to the second direction Y). The mounting surface 133 has a first end 1330 and a second end 1331 disposed opposite to each other in the second direction Y. The first end 1330 is disposed close to the wiring port 14. From the first end 1330 to the second end 1331, the distance between the mounting surface 133 and the second electrical module 3 in the first direction X (i.e., the distance between the mounting surface 133 and the second electrical module 3 in the first direction X) gradually decreases.

[0036] The base 1 provides a central mounting space for the first electrical module 2 and the second electrical module 3 via the receiving groove 132 and the mounting surface 133. This simplifies the mounting structure of the first electrical module 2 and the second electrical module 3 within the receiving cavity 40. The receiving groove 132 encloses the second electrical module 3, and the provided wiring port 14 facilitates wiring of the second electrical module 3. By setting an included angle α, after the first electrical module 2 is mounted on the mounting surface 133, the portion of the first electrical module 2 facing the wiring port 14 is raised away from the wiring port 14. This reduces the impact of the first electrical module 2 on the wiring of the second electrical module 3, improving the visibility and convenience of wiring maintenance for the second electrical module 3.

[0037] It should be noted that, referring to Figure 2 and Figure 3 The first electrical module 2 has a first terminal 20, and the second electrical module 3 has a second terminal 30. The second terminal 30 is positioned facing the connection port 14. To further reduce the impact of the wiring of the first electrical module 2 on the wiring of the second electrical module 3, in this embodiment, the first terminal 20 is positioned facing away from the connection port 14. It is understood that in other embodiments, the orientation of the first terminal 20 can be flexibly adjusted as needed, which will not be elaborated here. In some embodiments, the first electrical module 2 and the second electrical module 3 are each formed by electrical components.

[0038] In some embodiments, refer to Figures 1 to 3 The substrate 1 includes a base plate 12 and a protrusion 13 protruding from the base plate 12. The base plate 12 is detachably connected to the housing 4. The mounting surface 133 is located on the side of the protrusion 13 facing away from the base plate 12 in the first direction X. The protrusion 13 forms the aforementioned receiving groove 132. At least a portion of the wiring port 14 penetrates the protrusion 13 in the second direction Y. By forming the receiving groove 132 and the mounting surface 133 on the protrusion 13 protruding from the base plate 12, it is beneficial to reduce the space occupied by the overall substrate 1. The base plate 12 and the protrusion 13 can have the same wall thickness. The second electrical module 3 is embedded in the receiving groove 132 from the second side 11. The protrusion 13 is used to release other areas in the receiving cavity 40 except for the protrusion 13. It is understood that the figure only schematically shows the cooperation structure of the first electrical module 2, the second electrical module 3 and the protrusion 13 in some embodiments. In other embodiments, in order to further improve the coverage of the second electrical module 3, the inner wall of the receiving groove 132 can be circumferentially fitted to the second electrical module 3 to improve the installation stability of the second electrical module 3 and further reduce the space occupation of the protrusion 13.

[0039] In some embodiments, refer to Figures 3 to 5 The protrusion 13 has a first wall 135 and a second wall 136 arranged opposite to each other in the second direction Y. The first wall 135 and the second wall 136 are spaced apart, and the wiring port 14 passes through the first wall 135. During the wiring process of the second electrical module 3, the second terminal 30 and the wire insertion and removal process require the formation of a force on the entire second electrical module 3 in the second direction Y. The second wall 136 helps to limit the movement of the second electrical module 3 and improve the stability of the second electrical module 3.

[0040] Furthermore, it is understood that the opening shape and size of the aforementioned wiring port 14 can be flexibly adjusted as needed, such as... Figure 4 As shown, in order to increase the area of ​​the connection port 14, a portion of the connection port 14 can also extend through the area outside the first wall 135, which will not be elaborated here.

[0041] In some embodiments, refer to Figures 3 to 5 The protrusion 13 includes a raised sub-part 130 and an inclined sub-part 131. The raised sub-part 130 is connected to the substrate 12, and the inclined sub-part 131 protrudes from the side of the raised sub-part 130 away from the substrate 12. The mounting surface 133 is located on the side of the inclined sub-part 131 away from the raised sub-part 130. It is understood that the main structure of the raised sub-part 130 is primarily used to form a receiving groove 132 adapted to the second electrical module 3. When the required mounting surface 133 of the first electrical module 2 does not need to completely occupy the surface of the raised sub-part 130, the inclined sub-part 131 protruding from the raised sub-part 130 forms the mounting surface 133 adapted to the size and structure of the first electrical module 2, reducing the impact of the inclined sub-part 131 on the receiving groove 132 and on the mounting area of ​​the second electrical module 3. Simultaneously, it reduces space waste in other areas of the protrusion 13, which helps to reduce the space occupied by the receiving cavity 40.

[0042] In some embodiments, refer to Figure 5 The mounting surface 133 has a groove 138, and the inclined sub-part 131 facing the second electrical module 3 has a boss 139 corresponding to the groove 138. By providing the groove 138 structure on the mounting surface 133 and forming the boss 139 on the side of the inclined sub-part 131 facing the second electrical module 3, it is beneficial to improve the overall structural strength of the inclined sub-part 131 and reduce the problem of deformation of the inclined sub-part 131 under stress. It can be understood that by setting the boss 139 on the side of the inclined sub-part 131 facing the second electrical module 3, the protrusion range of the boss 139 towards the second electrical module 3 in the first direction X can be limited to the inclined area formed by the inclined sub-part 131, which is beneficial to reduce the impact of the boss 139 on the structural dimensions of the protrusion 13 and at the same time reduce the impact of the boss 139 on the installation space of the second electrical module 3.

[0043] In some embodiments, refer to Figures 2 to 4 At least two of the inclined sub-part 131, the protruding sub-part 130, and the substrate 12 are integrally formed. It is understood that in this embodiment, the overall substrate 1 can be manufactured by integral molding, which is beneficial to simplifying the manufacturing process of the substrate 1. The substrate 1 can be made of metal or non-metal materials as needed, which will not be elaborated here.

[0044] In some embodiments, refer to Figure 2 and Figure 3The protrusion 13 has a third wall 137 and a maintenance port 134 disposed opposite to each other in the third direction Z. The third wall 137 is connected to the first wall 135 and the second wall 136 respectively, and the maintenance port 134 is connected to the receiving groove 132. The first wall 135, the second wall 136 and the third wall 137 realize the basic positioning of the second electrical module 3, and the second electrical module 3 can be further locked by pre-setting screw holes on the protrusion 130. The maintenance port 134 is reserved during the molding process of the base body 1, which is beneficial to provide additional operable ports for maintenance, other wiring, etc., and improves the flexibility of the base body 1.

[0045] In some embodiments, refer to Figure 4 At least a portion of the substrate 12 is disposed around the protrusion 13, and the substrate 12 is provided with a plurality of mounting holes 120, which are distributed around the protrusion 13. To improve the stability of the substrate 12 when mounted within the housing 4, combined with... Figure 1 As shown, an exemplary embodiment of mounting the substrate 1 on the inner wall of the housing 4 is illustrated. The substrate 12 can be screwed to the housing 4 by means of a plurality of mounting holes 120. The mounting holes 120 distributed around the protrusion 13 help to improve the installation stability of the substrate 1 and the limiting stability of the second electrical module 3.

[0046] In some embodiments, refer to Figure 4 Multiple connection ports 14 are provided, and at least some of the connection ports 14 are arranged at intervals along the third direction Z. It is understood that the number of connection ports 14 can be flexibly adjusted according to the specifications of the second terminal 30 of the second electrical module 3, which will not be elaborated here.

[0047] Accordingly, this application provides an electrical device that includes the aforementioned battery pack. This electrical device can be an electronic device, a storage device, a powered vehicle, or similar equipment. It is understood that this electrical device can possess all the technical features and corresponding beneficial effects of the aforementioned battery pack, which will not be elaborated upon here.

[0048] The battery pack and electrical device provided in the embodiments of this application have been described in detail above, and specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A battery pack, characterized in that, The battery pack has a first direction (X) and a second direction (Y) that are perpendicular to each other, and the battery pack includes: The box (4) has a receiving cavity (40); A base (1) is disposed in the receiving cavity (40). The base (1) has a first side (10) and a second side (11) in the first direction (X). The base (1) has a receiving groove (132) on the first side (10) and a mounting surface (133) on the second side (11). The base (1) has a wiring port (14) in the second direction (Y) that communicates with the receiving groove (132). The first electrical module (2) is disposed on the mounting surface (133); A second electrical module (3) is disposed in the receiving slot (132), and the wiring terminals of the second electrical module (3) face the wiring port (14); The mounting surface (133) is inclined relative to the second direction (Y). The mounting surface (133) has a first end (1330) and a second end (1331) that are opposite to each other in the second direction (Y). The first end (1330) is located close to the wiring port (14). From the first end (1330) to the second end (1331), the distance between the mounting surface (133) and the second electrical module (3) in the first direction (X) gradually decreases.

2. The battery pack according to claim 1, characterized in that, The substrate (1) includes a base plate (12) and a protrusion (13) protruding from the base plate (12). The base plate (12) is detachably connected to the housing (4). The mounting surface (133) is located on the side of the protrusion (13) facing away from the base plate (12) in the first direction (X). The protrusion (13) forms the receiving groove (132). At least a portion of the wiring port (14) penetrates the protrusion (13) in the second direction (Y).

3. The battery pack according to claim 2, characterized in that, The protrusion (13) has a first wall (135) and a second wall (136) disposed opposite to each other in the second direction (Y), the first wall (135) and the second wall (136) being spaced apart, and the wiring port (14) being disposed through the first wall (135).

4. The battery pack according to claim 2 or 3, characterized in that, The protrusion (13) includes a protruding sub-part (130) and an inclined sub-part (131). The protruding sub-part (130) is connected to the substrate (12). The inclined sub-part (131) protrudes from the side of the protruding sub-part (130) away from the substrate (12). The mounting surface (133) is located on the side of the inclined sub-part (131) away from the protruding sub-part (130).

5. The battery pack according to claim 4, characterized in that, The mounting surface (133) is provided with a groove (138), and the inclined sub-part (131) facing the second electrical module (3) has a boss (139) corresponding to the groove (138).

6. The battery pack according to claim 4, characterized in that, At least two of the inclined sub-part (131), the protruding sub-part (130), and the substrate (12) are integrally formed.

7. The battery pack according to claim 3, characterized in that, The protrusion (13) has a third wall (137) and a maintenance port (134) disposed opposite to each other in the third direction (Z). The third wall (137) is connected to the first wall (135) and the second wall (136) respectively, and the maintenance port (134) is connected to the receiving groove (132). The third direction (Z) is perpendicular to the first direction (X) and the second direction (Y).

8. The battery pack according to claim 2, characterized in that, At least a portion of the substrate (12) is disposed around the protrusion (13), and the substrate (12) is provided with a plurality of mounting holes (120) distributed around the protrusion (13).

9. The battery pack according to claim 1, characterized in that, The wiring port (14) is provided in multiple ways, and at least some of the wiring ports (14) are arranged at intervals along a third direction (Z), which is perpendicular to the first direction (X) and the second direction (Y).

10. An electrical appliance, characterized in that, Includes the battery pack as described in any one of claims 1 to 9.

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