Connecting base and battery pack

Abstract

The utility model relates to a connecting base and a battery pack, the connecting base comprises a fixing piece, an adjusting piece, a connecting piece and a fastening piece, and the fixing piece is used for being detachably connected to a box body of the battery pack; the adjusting piece is arranged on the fixing piece in a sliding mode in the first direction and can be selectively fixed, and a first hole is formed in the adjusting piece; the connecting piece is used for connecting an output electrode of the battery pack and is provided with a second hole; and the fastener penetrates through the second hole and is inserted into the first hole. According to the connecting base, through the arrangement of the adjusting piece, the assembly tolerance of the fixing piece and the output electrode of the battery pack in the first direction can be reduced, and the connecting precision is improved; the fastener penetrates through the second hole in the second direction and is inserted into the first hole, so that the connecting piece connected to the output electrode of the battery pack is connected with the adjusting piece, the fastener can reduce the assembly tolerance of the fixing piece and the output electrode of the battery pack in the second direction, and the assembly yield of the connecting base and the battery pack is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a connecting base and a battery pack. Background Art

[0002] The battery module of the existing battery pack is connected to the external conductive member arranged on the external load through the bus bar arranged at the output pole, so as to realize the electrical connection between the battery pack and the external load. In order to protect the stability of the connection between the bus bar and the external conductive member, an insulating connection base is usually fixed at the connection point. The connection base is connected to the output pole of the battery module through the bus bar to provide insulation protection for the output pole, and the external load is then connected to the bus bar on the connection base. However, due to the manufacturing or installation tolerances between the various components of the battery module, after the connection base is fixed on the box, the connection base and the corresponding output pole cannot be assembled in place through the bus bar, and the connection accuracy is poor. Utility Model Content

[0003] The purpose of the embodiments of the utility model is to provide a connection base and a battery pack, which have a simple structure, an adjustable position of an adjusting member and a high connection accuracy.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] In a first aspect, a connecting base is provided, which is used to be set on a box of a battery pack and connected to an output pole of the battery pack, and includes a fixing member, an adjusting member, a connecting member and a fastener, wherein the fixing member is used to be detachably connected to the box; the adjusting member is slidably set on the fixing member along a first direction and can be selectively fixed, and a first hole is provided on the adjusting member; the connecting member is used to connect to the output pole of the battery pack, and a second hole is provided on the connecting member; the fastener passes through the second hole along a second direction and is inserted into the first hole to connect the connecting member to the adjusting member, and the first direction and the second direction are set at an angle.

[0006] As a preferred solution for connecting the base, a limiting groove is provided on one side of the fixing member along the second direction, the adjusting member includes a first connecting portion and a first limiting portion connected to the first connecting portion, the first hole is provided on the first connecting portion, the first limiting portion is inserted into the limiting groove, and the size of the first limiting portion along the first direction is smaller than the size of the limiting groove along the first direction.

[0007] As a preferred solution for connecting the base, at least one of the two groove walls of the limit groove arranged along the first direction is protrudingly provided with a stopping portion, and the stopping portion is spaced apart from the groove bottom of the limit groove, a second limiting portion is protrudingly provided on the first limiting portion, and the second limiting portion is inserted between the stopping portion and the groove bottom of the limit groove.

[0008] As a preferred solution for connecting the base, the fixing member is provided with a first opening passing through the limiting groove, and the first opening is located on a side surface of the fixing member arranged along a third direction, and the adjusting member is inserted into the limiting groove along the third direction from the first opening, and the third direction, the second direction and the first direction are arranged at an angle to each other.

[0009] As a preferred solution for connecting the base, one of the two groove walls of the limiting groove arranged along the first direction is protrudingly provided with the stopping portion, and the other is protrudingly provided with a clamping portion, and a clamping interface is opened on the first limiting portion, and the clamping portion is clamped to the clamping interface.

[0010] As a preferred solution for connecting the base, the clamping portion has a guide surface and a first end and a second end spaced apart along the first direction, and the first end is an end at which the clamping portion is connected to the groove wall of the limiting groove, and the guide surface is inclined from the second end toward the first end and toward the direction of the first opening.

[0011] As a preferred solution for the connecting base, the connecting member includes a conductive part and an output part arranged at intervals along the second direction, the conductive part is connected to the output part through the second connecting part, the conductive part is used to connect the output pole of the battery pack, and the second hole is arranged on the output part.

[0012] As a preferred solution for connecting the base, the fixing member has a receiving groove, and a second opening penetrating the receiving groove is provided on one side of the fixing member along the second direction, the adjusting member is provided in the receiving groove, and the output part is inserted into the receiving groove along the second opening.

[0013] As a preferred solution for connecting the base, the fixing member is provided with a buckle, and the buckle is used to detachably mount the fixing member on the box body; and / or,

[0014] A first positioning portion is protruding from the fixing member, and the first positioning portion is used for positioning the fixing member when it is installed on the box.

[0015] In a second aspect, a battery pack comprises a case, a battery module and a connection base as described above, wherein the case has a mounting groove, the battery module is arranged in the mounting groove, the connection base is detachably connected to the case, and the connector of the connection base is connected to the output pole of the battery module.

[0016] The beneficial effects of the embodiments of the utility model are as follows: by enabling the adjustment member to be adjusted along the first direction, the assembly tolerance of the fixing member and the output pole of the battery pack along the first direction can be reduced, thereby improving the connection accuracy; by utilizing the fastener to pass through the second hole and be inserted into the first hole along the second direction to connect the connecting member connected to the output pole of the battery pack with the adjusting member, the fastener can reduce the assembly tolerance of the fixing member and the output pole of the battery pack along the second direction, thereby avoiding the problem of misalignment and difficulty in assembly of the connecting member and the fixing member, thereby effectively improving the assembly yield of the connecting base and the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below based on the drawings and embodiments.

[0018] Figure 1 It is a schematic structural diagram of a battery pack according to an embodiment of the utility model.

[0019] Figure 2 for Figure 1 An enlarged schematic diagram of point A.

[0020] Figure 3 This is a schematic diagram of the disassembled state of the connection base and the box body of an embodiment of the utility model.

[0021] Figure 4 It is an exploded schematic diagram of the connection base of an embodiment of the utility model.

[0022] Figure 5 It is a schematic structural diagram of a fixing member according to an embodiment of the utility model.

[0023] Figure 6 It is a schematic structural diagram of the adjusting member of an embodiment of the utility model.

[0024] In the figure:

[0025] 1. Fixing member; 11. Limiting groove; 12. Stopping portion; 13. First opening; 14. Clamping portion; 141. Guide surface; 142. First end; 143. Second end; 15. Accommodating groove; 16. Second opening; 17. Buckle; 18. First positioning portion; 19. Second positioning groove; 20. Second avoidance groove; 2. Box body; 21. Mounting groove; 22. Clamping groove; 23. First positioning groove; 24. First avoidance groove; 3. Adjusting member; 31. First hole; 32. First connecting portion; 33. First limiting portion; 331. Clamping interface; 34. Second limiting portion; 35. Second positioning portion; 36. Second reinforcing portion; 37. First reinforcing portion; 4. Connecting member; 41. Second hole; 42. Conductive portion; 43. Output portion; 44. Second connecting portion; 5. Battery module. DETAILED DESCRIPTION

[0026] In order to make the technical problems solved by the utility model, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the connecting base of the embodiment of the utility model is used to be arranged on the box body 2 of the battery pack and connected to the output pole of the battery pack, including a fixing member 1, an adjusting member 3, a connecting member 4 and a fastener, the fixing member 1 is used to be detachably connected to the box body 2 of the battery pack; the adjusting member 3 is slidably arranged on the fixing member 1 along a first direction and can be selectively fixed (the first direction is the X direction shown in the figure), and a first hole 31 is provided on the adjusting member 3; the connecting member 4 is used to connect the output pole of the battery pack, and the connecting member 4 is provided with a second hole 41; the fastener passes through the second hole 41 along the second direction and is inserted into the first hole 31 (the second direction is the Y direction shown in the figure, that is, the height direction of this embodiment) to connect the connecting member 4 to the adjusting member 3, and the first direction and the second direction are arranged at an angle.

[0030] It is understandable that, compared with the traditional connection base, only the fixing member 1 and the connecting member 4 are provided, the fixing member 1 is fixed to the box 2 or the end plate of the battery pack, and then the connecting member 4 is used to insert the output pole of the battery module 5 therein, resulting in the battery module 5 being unable to be assembled in place or having an assembly gap between the fixing member 1 and the corresponding output pole due to the manufacturing or installation tolerance between the various components. In this embodiment, the adjusting member 3 can be adjusted along the first direction to reduce the assembly tolerance of the fixing member 1 and the output pole of the battery pack along the first direction and improve the connection accuracy; by using the fastener to pass through the second hole 41 along the second direction and insert it into the first hole 31 to connect the connecting member 4 connected to the output pole of the battery pack with the adjusting member 3, the fastener can reduce the assembly tolerance of the fixing member 1 and the output pole of the battery pack along the second direction, avoid the problem of the connecting member 4 and the fixing member 1 being misaligned and difficult to assemble, thereby effectively improving the assembly yield of the connection base and the battery pack.

[0031] It should be noted that in the present embodiment, the fastener is a bolt, the first hole 31 is a threaded hole, and the second hole 41 is a through hole. The bolt is screwed through the through hole and screwed into the threaded hole to connect the connector 4 to the adjusting member 3. The bolt itself has adaptability and adjustability along the length direction, which is convenient for adjustment, and the threaded connection is stable and convenient for assembly and disassembly. In other embodiments, the first hole 31 can be a through hole, the second hole 41 can be a threaded hole, or the fastener can be a screw or other fixing member 1, which is not limited here. Of course, the adjusting member 3 is used for electrical connection with an external load to realize electrical connection between the battery pack and the external load. In addition, the fixing member 1 must be an insulating member made of plastic, silicone or other materials to avoid the possibility of leakage or electric shock.

[0032] Specifically, Figure 4 , Figure 5 and Figure 6As shown, a limiting groove 11 is recessed on one side of the fixing member 1 along the second direction, and the adjusting member 3 includes a first connecting portion 32 and a first limiting portion 33 connected to the first connecting portion 32. The length of the first limiting portion 33 extends along the second direction. The first hole 31 is provided on the first connecting portion 32. The first limiting portion 33 is inserted into the limiting groove 11, and the size of the first limiting portion 33 along the first direction is smaller than the size of the limiting groove 11 along the first direction. By inserting the first limiting portion 33 into the limiting groove 11, the first limiting portion 33 can be moved and adjusted in the first direction in the limiting groove 11, thereby realizing the adjustment of the adjusting member 3 along the first direction. In this embodiment, two first limiting portions 33 are arranged at intervals along the first direction on the first connecting portion 32, that is, two limiting grooves 11 are arranged on the fixing seat, and the two first limiting portions 33 are respectively inserted into the two limiting grooves 11. The arrangement of the two first limiting portions 33 of the adjusting member 3 can improve the structural strength of the adjusting member 3 and the connection strength with the fixing member 1, and ensure the connection stability of the adjusting member 3 and the fixing member 1. In other embodiments, the adjusting member 3 can also adopt a movable adjustment structure in which a slider cooperates with a slide rail or a slide groove.

[0033] Furthermore, if Figure 4 , Figure 5 and Figure 6 As shown, at least one of the two groove walls of the limiting groove 11 arranged along the first direction is protrudingly provided with a stopping portion 12, and the stopping portion 12 is spaced apart from the groove bottom of the limiting groove 11, and a second limiting portion 34 is protrudingly provided on the first limiting portion 33, and the second limiting portion 34 is inserted between the stopping portion 12 and the groove bottom of the limiting groove 11, and the second limiting portion 34 can abut against the stopping portion 12. By setting the stopper 12, the second limiter 34 can be limited in the height direction, and the second limiter 34 can be prevented from slipping out of the limiter slot 11 in the height direction. That is, during the screwing process of the bolt, the adjusting member 3 can be pulled so that the second limiter 34 is stuck in the stopper 12, so as to achieve the locking of the adjusting member 3 and the fixing member 1. It should be noted that when only one of the two groove walls of the limiter slot 11 arranged in the first direction is provided with the stopper 12, the distance between the stopper 12 and the other groove wall should be greater than the size of the first limiter 33 in the first direction, so as to ensure that the adjusting member 3 can still be adjusted in the first direction. When the stopper 12 is provided on both groove walls of the limiter slot 11 arranged in the first direction, the distance between the stopper 12 should be greater than the size of the first limiter 33 in the first direction, so as to ensure that the adjusting member 3 can still be adjusted in the first direction.

[0034] Furthermore, if Figure 4 , Figure 5 and Figure 6As shown, the fixing member 1 is provided with a first opening 13 penetrating the limiting groove 11, and the first opening 13 is located on a side surface of the fixing member 1 arranged along the third direction, and the adjusting member 3 is inserted into the limiting groove 11 through the first opening 13 along the third direction, and the third direction, the second direction and the first direction are arranged at an angle to each other. The first opening 13 is provided to facilitate the installation of the adjusting member 3. By adjusting the depth of the adjusting member 3 inserted into the limiting groove 11, the assembly tolerance of the adjusting member 3 and the output pole along the third direction can be reduced, and the assembly yield of the output pole seat can be improved. At this point, the output pole seat has a certain amount of movable adjustment in the X, Y and Z directions, reducing the assembly tolerance of the output pole in each direction.

[0035] Alternatively, if Figure 4 , Figure 5 and Figure 6 As shown, one of the two groove walls arranged along the first direction of the limiting groove 11 is protrudingly provided with a stopper 12, and the other is protrudingly provided with a clamping portion 14, and a clamping interface 331 is provided on the first limiting portion 33, and the clamping portion 14 is clamped to the clamping interface 331. Through the clamping cooperation between the clamping portion 14 and the clamping interface 331, the connection strength between the adjusting member 3 and the fixing member 1 can be strengthened, and the second limiting portion 34 is prevented from being separated from the limiting groove 11 along the first opening 13. It should be noted that the size of the clamping interface 331 should be larger than that of the clamping portion 14, so that when the clamping portion 14 is clamped to the clamping interface 331, the adjusting member 3 can still be moved and adjusted along the second direction and the third direction.

[0036] Preferably, if Figure 5 As shown, the clamping part 14 has a guide surface 141 and a first end 142 and a second end 143 spaced apart along the first direction, and the first end 142 is an end of the clamping part 14 connected to the groove wall of the limiting groove 11, and the guide surface 141 is inclined from the second end 143 toward the first end 142 and toward the direction of the first opening 13. Through the setting of the guide surface 141, when the adjusting member 3 is inserted into the limiting groove 11, the first limiting part 33 can slide and move along the guide surface 141, rather than being blocked at the outside of the clamping part 14 and unable to be inserted into the limiting groove 11 or having to force the first limiting part 33 to be installed, thereby improving the convenience of installing the adjusting member 3. It can be understood that the adjusting member 3 has a certain elasticity, that is, the two first limiting parts 33 can be clamped along both sides of the first direction when sliding on the guide surface 141, and the second limiting part 34 is restored to its original state when the clamping part 14 is inserted into the card interface 331, thereby ensuring the structural strength of the adjusting member 3.

[0037] In some embodiments, Figure 1 , Figure 2 and Figure 4As shown, the connector 4 includes a conductive portion 42 and an output portion 43 arranged at intervals along the second direction. The conductive portion 42 is connected to the output portion 43 through the second connecting portion 44. The conductive portion 42 is used to connect the output pole of the battery pack, and the second hole 41 is arranged on the output portion 43. Compared with the connector with a flat sheet structure, when there is a height tolerance between the output pole and the output pole seat after the battery module 5 is installed, the gap between the connecting piece of the flat sheet structure and the output pole seat is large, and the connection strength is difficult to ensure. It is easy to bend the connecting piece of the flat sheet structure and affect the connection strength between the connecting piece of the flat sheet structure and the output pole. In this embodiment, the conductive portion 42 and the output portion 43 are arranged at intervals along the second direction, so that the output portion 43 is connected to the adjusting member 3. Even if there is a gap between the output portion 43 and the adjusting member 3, the deformation amount usually occurs on the output portion 43 or the second connecting portion 44, reducing the influence on the connection between the conductive portion 42 and the output pole.

[0038] Alternatively, if Figure 2 , Figure 4 and Figure 5 As shown, the fixing member 1 has a receiving groove 15, and a second opening 16 penetrating the receiving groove 15 is provided on one side of the fixing member 1 along the second direction, the adjusting member 3 is provided in the receiving groove 15, and the output portion 43 is inserted into the receiving groove 15 along the second opening 16. By providing the receiving groove 15, the output portion 43 extends into the receiving groove 15 and is connected to the adjusting member 3, so that the connection between the connecting member 4 and the adjusting member 3 can be effectively protected.

[0039] It should be noted that, in this embodiment, Figure 4 and Figure 5 As shown, the limiting groove 11 is arranged at the bottom of the accommodating groove 15, and the accommodating groove 15 also penetrates the fixing member 1 along the third direction and is provided with a side surface of the first opening 13, so as to facilitate intuitive and clear adjustment of the position of the adjusting member 3, so that the first hole 31 can be quickly aligned with the second hole 41, thereby improving assembly efficiency.

[0040] Preferably, if Figure 5 and Figure 6 As shown, a first reinforcement portion 37 is provided on the side of the first connection portion 32 of the adjusting member 3 away from the connecting member 4, and the first hole 31 penetrates the first connection portion 32 and extends into the first reinforcement portion 37, thereby increasing the depth of the first hole 31, which can effectively ensure the contact area between the bolt and the first hole 31, and ensure the connection strength between the adjusting member 3 and the connecting member 4. Accordingly, a second avoidance groove 20 is provided on the fixing seat at a position relative to the first reinforcement portion 37, that is, the second avoidance groove 20 is provided at the bottom of the accommodating groove 15, and the second avoidance groove 20 penetrates the groove wall of the fixing seat provided with the first opening 13 along the third direction.

[0041] Furthermore, if Figure 4 , Figure 5 and Figure 6As shown, the adjusting member 3 is provided with a second positioning portion 35 protruding from one side of the groove wall close to the accommodating groove 15 along the third direction, and a second positioning groove 19 is recessed on the groove wall of the accommodating groove 15. The second positioning portion 35 is inserted into the second positioning groove 19, which can effectively enhance the installation position accuracy between the adjusting member 3 and the fixing member 1. It should be noted that the size of the second positioning groove 19 should be larger than the size of the second positioning portion 35, so that when the second positioning portion 35 is inserted into the second positioning groove 19, the adjusting member 3 can still be adjusted along the first direction and the second direction.

[0042] In addition, the second reinforcing portion 36 is provided on the side of the adjusting member 3 adjacent to the first opening 13 along the third direction, that is, the second reinforcing portion 36 is connected to the first limiting portion 33, and the length of the second reinforcing portion 36 extends along the first direction. By providing the second reinforcing portion 36, the structural strength of the first limiting portion 33 can be effectively strengthened, thereby ensuring the overall structural strength of the adjusting member 3. Furthermore, the side of the stopper 12 adjacent to the first opening 13 along the third direction has a certain spacing gap from the side of the fixing member 1 where the first opening 13 is provided, and the spacing gap can accommodate the second reinforcing portion 36, thereby reducing the leakage of the adjusting member 3 structure, thereby reducing the risk of electric shock, and improving the safety of the structure.

[0043] The present application also provides a battery pack, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a box body 2, a battery module 5 and the above-mentioned connection base, the box body 2 has a mounting groove 21, the battery module 5 is arranged in the mounting groove 21, the connection base is detachably connected to the box body 2, and the connection member 4 of the connection base is connected to the output pole of the battery module 5. By providing a battery pack with the connection base, after the battery module 5 is installed, the position of the adjustment member 3 of the connection base can be adjusted, so that the connection member 4 electrically connected to the output pole of the battery module 5 can be accurately connected with the adjustment member 3, reducing the assembly tolerance, avoiding the problem of the connection member 4 and the fixing member 1 being misaligned and difficult to assemble, thereby effectively improving the assembly yield of the connection base and the battery pack, and then effectively improving the production efficiency.

[0044] Optionally, a buckle 17 is provided on the fixing member 1 connected to the base, and a slot 22 is provided on the box body 2. The buckle 17 is engaged in the slot 22. The fixing member 1 and the box body 2 are detachably connected by the combination of the buckle 17 and the slot 22. The disassembly and assembly are convenient, and the buckle 17 is firmly connected. Of course, in other embodiments, bolts and other methods can also be used for detachable connection.

[0045] Furthermore, a first positioning portion 18 is protrudingly provided on the fixing member 1 connected to the base, and a first positioning groove 23 is provided on the box body 2, and the first positioning portion 18 is inserted into the first positioning groove 23. Through the structural cooperation between the first positioning portion 18 and the first positioning groove 23, the position accuracy of the fixing member 1 when it is installed on the box body 2 can be effectively enhanced. At the same time, combined with the connection mode of the single buckle 17, the fixing member 1 can be prevented from rotating after being connected, thereby ensuring the connection stability of the fixing member 1.

[0046] Preferably, the box body 2 is recessed with a first avoidance groove 24, and the fixing member 1 connected to the base is partially inserted into the first avoidance groove 24. The first avoidance groove 24 can effectively accommodate the structure of the fixing member 1, reduce the height space occupied by the fixing member 1 in the battery pack, and ensure the compactness of the overall structure of the battery pack.

[0047] In the description of this article, it is necessary to understand that the terms "upper", "lower", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of 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 therefore cannot be understood as a limitation on the present invention.

[0048] In the description of this specification, the description of reference term "an embodiment" etc. means that the specific features, structures, materials or characteristics of the embodiment are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment.

[0049] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0050] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A connection base, used to be arranged on a box of a battery pack and connected to an output electrode of the battery pack, characterized in that: include: A fixing member, the fixing member is used to be detachably connected to the box body; An adjusting member, the adjusting member is slidably disposed on the fixing member along a first direction and can be selectively fixed, and a first hole is formed on the adjusting member; A connector, the connector is used to connect the output pole of the battery pack, and the connector is provided with a second hole; A fastener passes through the second hole along a second direction and is inserted into the first hole to connect the connecting member with the adjusting member, and the first direction and the second direction are arranged at an angle.

2. The connection base according to claim 1, characterized in that: A limiting groove is recessed on one side of the fixing member along the second direction, the adjusting member includes a first connecting portion and a first limiting portion connected to the first connecting portion, the first hole is arranged on the first connecting portion, the first limiting portion is inserted into the limiting groove, and the size of the first limiting portion along the first direction is smaller than the size of the limiting groove along the first direction.

3. The connection base according to claim 2, characterized in that: At least one of the two groove walls of the limiting groove arranged along the first direction is protrudingly provided with a stopping portion, and the stopping portion is spaced apart from the groove bottom of the limiting groove. A second limiting portion is protrudingly provided on the first limiting portion, and the second limiting portion is inserted between the stopping portion and the groove bottom of the limiting groove.

4. The connection base according to claim 3, characterized in that: The fixing member is provided with a first opening that passes through the limiting groove, and the first opening is located on a side surface of the fixing member arranged along a third direction, and the adjusting member is inserted into the limiting groove along the third direction through the first opening, and the third direction, the second direction and the first direction are arranged at an angle to each other.

5. The connection base according to claim 4, characterized in that: One of the two groove walls of the limiting groove arranged along the first direction is protrudingly provided with the stopping portion, and the other is protrudingly provided with a clamping portion. The first limiting portion is provided with a clamping interface, and the clamping portion is clamped to the clamping interface.

6. The connection base according to claim 5, characterized in that: The clamping portion has a guide surface and a first end and a second end spaced apart along the first direction, and the first end is an end of the clamping portion connected to the groove wall of the limiting groove, and the guide surface is inclined from the second end toward the first end and toward the first opening.

7. The connection base according to any one of claims 1 to 6, characterized in that: The connecting member includes a conductive part and an output part arranged at intervals along the second direction, the conductive part is connected to the output part through the second connecting part, the conductive part is used to connect the output pole of the battery pack, and the second hole is arranged on the output part.

8. The connection base according to claim 7, characterized in that: The fixing member has a receiving groove therein, and a second opening penetrating the receiving groove is provided on one side of the fixing member along the second direction, the adjusting member is provided in the receiving groove, and the output portion is inserted into the receiving groove through the second opening.

9. The connection base according to any one of claims 1 to 6, characterized in that: The fixing member is provided with a buckle, and the buckle is used to detachably mount the fixing member on the box body; and / or, A first positioning portion is protruding from the fixing member, and the first positioning portion is used for positioning the fixing member when it is installed on the box.

10. A battery pack, characterized in that: It comprises a box body, a battery module and a connecting base as described in any one of claims 1-9, wherein the box body has a mounting groove, the battery module is arranged in the mounting groove, the connecting base is detachably connected to the box body, and the connecting piece of the connecting base is connected to the output pole of the battery module.

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