Conductive sampling assembly, battery pack and energy storage power supply
By designing the conductive sampling component and utilizing the elastic connection of the bent arm and the cooperation of the positioning hole, the problem of the second conductive component's positional deviation was solved, achieving efficient welding and improving welding quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-04-10
AI Technical Summary
In the prior art, the second conductive component in the battery pack is prone to displacement from the first conductive component, which affects welding efficiency and welding quality.
A conductive sampling component is adopted, including a first conductive element and a second conductive element. The first conductive element has a positioning hole, and the bent arm of the second conductive element passes through the positioning hole through an elastic connection and abuts against the periphery of the positioning hole after positioning, so as to achieve pre-positioning and ensure smooth welding.
It improved welding efficiency and quality, reduced overall welding time, and increased production efficiency.
Smart Images
Figure CN224110429U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of battery pack sampling, and particularly relates to a conductive sampling assembly, a battery pack and an energy storage power supply. BACKGROUND
[0002] In related technologies, a plurality of battery cells in a battery pack are usually connected in series through a first conductive member such as an aluminum bar, a second conductive member such as a nickel sheet is welded on the first conductive member, and the second conductive member is electrically connected with a sampling board. The sampling board collects electrical data of the battery cells through the first conductive member and the second conductive member. In the manufacturing process of the battery pack, the second conductive member needs to be placed at a specified position on the first conductive member, and then the first conductive member and the second conductive member are welded. However, the second conductive member in related technologies usually adopts a simple structure such as a flat shape or a single protruding shape, and the second conductive member is prone to position deviation after being placed on the first conductive member, which affects the welding efficiency and welding quality. CONTENT OF THE UTILITY MODEL
[0003] In view of the above, it is necessary to provide a conductive sampling assembly, a battery pack and an energy storage power supply, which can improve the welding efficiency and welding quality.
[0004] The first aspect of the present application provides a conductive sampling assembly applied to a battery pack, the battery pack comprising battery cells and a sampling board, and comprising: a first conductive member electrically connected with the battery cells and having a first surface and a second surface opposite to each other, the first conductive member being provided with a positioning hole penetrating through the first surface and the second surface; and a second conductive member electrically connected with the sampling board, the second conductive member comprising a main body and a bending arm connected with the main body, the main body being attached to the first surface, the bending arm comprising a first arm and a second arm, one end of the first arm being connected with the main body, and the other end of the first arm being elastically connected with the second arm; when the first arm and the second arm are inserted into the positioning hole, the second arm is deformed to approach the first arm so that the second arm can pass through the positioning hole, and after the second arm passes through the positioning hole, the second arm is deformed to move away from the first arm so that the second arm can abut against the second surface located at the periphery of the positioning hole.
[0005] In some embodiments, the second arm abuts against the second surface along a first direction, and the hole wall of the positioning hole limits the first arm along a second direction and a third direction respectively, and the first direction, the second direction and the third direction have an included angle therebetween.
[0006] In some embodiments, the connection between the first arm and the main body is arranged in a bending manner, the connection between the second arm and the first arm is also arranged in a bending manner, and the second arm is arranged to move away from the main body bending along a third direction relative to the first arm.
[0007] In some embodiments, the length of the second arm to the first arm in the third direction gradually increases along the first direction; the minimum length of the second arm to the first arm in the third direction is less than the hole body length of the positioning hole in the third direction, and the maximum length of the second arm to the first arm in the third direction is greater than the hole body length of the positioning hole in the third direction.
[0008] In some embodiments, the two side hole walls of the positioning hole in the second direction are respectively close to the two sides of the first arm.
[0009] In some embodiments, the two side hole walls of the positioning hole in the third direction are both spaced apart from the first arm; when the first arm and the second arm are inserted into the positioning hole, the hole wall of the positioning hole pushes the second arm, so that the second arm is deformed to move closer to the first arm in the third direction.
[0010] In some embodiments, the plurality of bending arms are distributed on opposite sides of the main body; the first conductive member is provided with a plurality of positioning holes, and the plurality of bending arms are correspondingly inserted into the plurality of positioning holes.
[0011] In some embodiments, the first conductive member has a first welding section and a second welding section, the first welding section is electrically connected with the second conductive member, and the second welding section is used for electrically connecting with the battery cell; the first welding section is protrudingly arranged away from the second welding section and away from the battery cell.
[0012] The second aspect of the present application provides a battery pack, which comprises a battery cell, a sampling board and the conductive sampling assembly of the first aspect; the first conductive member is electrically connected with the battery cell, and the second conductive member is electrically connected with the sampling board.
[0013] The third aspect of the present application provides an energy storage power supply, which comprises a shell, a functional circuit board and the battery pack of the second aspect; the functional circuit board and the battery pack are arranged in the shell, and the functional circuit board is electrically connected with the battery pack.
[0014] By using the conductive sampling assembly, the battery pack and the energy storage power supply provided by the present application, the elastic connection between the first arm and the second arm can make the bending arm easily inserted into the positioning hole; after the bending arm is inserted into the positioning hole, the second arm is deformed to move away from the first arm, and the second arm is abutted against the second surface located outside the positioning hole, so that the second arm cannot pass through the positioning hole from the second surface to the first surface, and the main body of the first conductive member is separated from the abutment with the first surface, thereby ensuring that the main body of the first conductive member and the second conductive member are in a predetermined position, and the subsequent welding between the main body of the first conductive member and the second conductive member is smoothly performed, thereby reducing the overall welding time and improving the welding efficiency and the welding quality. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 FIG. 1 shows a structural schematic diagram of an energy storage power supply in an embodiment of the present application.
[0016] Figure 2 A structural schematic diagram of a battery pack in an embodiment of the present application is provided.
[0017] Figure 3 A structural schematic diagram of a conductive sampling assembly in an embodiment of the present application is provided.
[0018] Figure 4 A structural schematic diagram of a second conductive member in an embodiment of the present application is provided.
[0019] Figure 5 A change schematic diagram of a bending arm when passing through a positioning hole in an embodiment of the present application is provided.
[0020] Figure 6 A cooperation schematic diagram of a first conductive member and a second conductive member in an embodiment of the present application is provided.
[0021] Figure 7 A structural schematic diagram of a first conductive member in an embodiment of the present application is provided.
[0022] Figure 8 A cooperation schematic diagram of a first conductive member and a second conductive member in another embodiment of the present application is provided.
[0023] Figure 9 A cooperation schematic diagram of a first conductive member and a second conductive member in still another embodiment of the present application is provided.
[0024] Figure 10 A cooperation schematic diagram of a first conductive member and a second conductive member in still another embodiment of the present application is provided. Figure 9 A local enlarged view at A in the above figure.
[0025] Figure 11 A cooperation schematic diagram of a first conductive member and a second conductive member in still another embodiment of the present application is provided.
[0026] Main element symbol explanation
[0027] 1000, energy storage power supply; 100, battery pack; 200, shell; 10, conductive sampling assembly; 20, battery cell; 1, first conductive member; 11, first surface; 12, second surface; 13, positioning hole; 14, first welding section; 15, second welding section; 16, notch; 2, second conductive member; 21, main body; 22, bending arm; 221, first arm; 222, second arm; 23, sampling wire. DETAILED DESCRIPTION
[0028] In the description of the embodiments of the present application, the technical terms "first", "second" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise explicitly specified and limited.
[0029] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or a middle element can be present at the same time. When an element is considered to be "arranged on" another element, it can be directly arranged on the other element or a middle element can be present at the same time. In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The specification and claims of the present application and the above description of the drawings, the terms "include" and "have" and any variations thereof, are intended to cover non-exclusive inclusion.
[0031] Reference herein to "embodiments" means that the particular features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears at various places in the specification does not necessarily all refer to the same embodiments, nor is it necessarily mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0032] In the related art, the battery pack of the energy storage power supply usually includes battery cells, a sampling board, a first conductive member and a second conductive member. In the manufacturing process of the battery pack, the second conductive member needs to be placed at a specified position on the first conductive member for welding, the first conductive member is welded to the battery cells, and the second conductive member is electrically connected to the sampling board. The first conductive member can be an aluminum strip, and the second conductive member can be a nickel sheet.
[0033] In the case of using square shell battery cells (also known as square battery cells), the sampling method usually adopts soft connection because the square shell battery cells will swell during use. For example, the second conductive part is electrically connected to the sampling board through a sampling line. The internal structure of the shell lacks a structure for installing and fixing the nickel sheet. In addition, the second conductive part usually adopts a simple structure such as a flat shape or a single protruding shape, which makes it difficult to achieve the desired effect of the positioning scheme between the second conductive part and the first conductive part. Therefore, after the second conductive part is placed on the first conductive part, the second conductive part is prone to deviate from the first conductive part, and the second conductive part is also difficult to be tightly attached to the first conductive part, which affects the welding efficiency and welding quality.
[0034] Therefore, the present application provides a conductive sampling assembly, a battery pack and an energy storage power supply, which can improve the welding efficiency and welding quality.
[0035] Figure 1 The present application provides a structure diagram of an energy storage power supply in an embodiment. Figure 2 The present application provides a structure diagram of a battery pack in an embodiment.
[0036] As shown in Figure 1 and Figure 2 The present application provides a conductive sampling assembly 10, which is applied to a battery pack 100. The battery pack 100 can be applied to an energy storage power supply 1000, and the battery pack 100 is used to provide electrical energy for the energy storage power supply 1000.
[0037] The battery pack 100 includes a conductive sampling assembly 10, a battery cell 20 and a sampling board (not shown in the figure). The sampling board is a circuit board with sampling function, which can be electrically connected to the battery cell 20 and is used to collect electrical data such as voltage or current of the battery cell. The conductive sampling assembly 10 includes a first conductive part 1 and a second conductive part 2. The first conductive part 1 is electrically connected to the battery cell 20, and the second conductive part 2 is electrically connected to the sampling board. The conductive sampling assembly 10 is used to electrically connect the battery cell 20 and the sampling board, and realizes the sampling function of the sampling board to the electrical data of the battery cell 20.
[0038] For example, the battery cell 20 adopts a square shell battery cell, and the battery cell 20 has a plurality of battery cells 20 which are arranged in an array and combined to form a whole. A group of conductive sampling assemblies 10 are arranged between the end portions of two adjacent battery cells 20. It can be understood that the specific number and position of the conductive sampling assemblies 10 can be configured according to the number and position of the battery cells 20.
[0039] For example, the first conductive part 1 is an aluminum strip, and the first conductive part 1 is welded to the tab of the corresponding two battery cells 20 to fix and electrically connect the first conductive part 1 and the battery cell 20.
[0040] The second conductive member 2 is a nickel sheet, and the second conductive member 2 is welded to the first conductive member 1 and is electrically connected to the sampling plate through the sampling line 23.
[0041] Figure 3 A structural schematic diagram of the conductive sampling assembly in an embodiment of the present application is provided.
[0042] Please refer to Figure 3 In the embodiment, the first conductive member 1 has a first surface 11 and a second surface 12 opposite to each other, and the first conductive member 1 is provided with a positioning hole 13 penetrating through the first surface 11 and the second surface 12.
[0043] The first surface 11 and the second surface 12 are distributed along a first direction, and the first direction is a thickness direction of the first conductive member 1, and the first direction takes the Z-axis direction in the drawing as an example. The positioning hole 13 penetrates through the first conductive member 1 along the first direction. The positioning hole 13 is used for partially penetrating the second conductive member 2 and positioning the second conductive member 2.
[0044] Figure 4 A structural schematic diagram of the second conductive member in an embodiment of the present application is provided.
[0045] Please refer to Figure 4 The second conductive member 2 includes a main body 21 and a bent arm 22 connected with the main body 21. The main body 21 is attached to the first surface 11. The main body 21 is used for welding and fixing with the first conductive member 1, and the bent arm 22 is used for penetrating and positioning with the positioning hole 13.
[0046] Specifically, the bent arm 22 includes a first arm 221 and a second arm 222, one end of the first arm 221 is connected with the main body 21, the other end of the first arm 221 is elastically connected with the second arm 222, and the second arm 222 can abut against the second surface 12 located at the periphery of the positioning hole 13.
[0047] In actual application scenarios, the first conductive member 1 and the second conductive member 2 can be assembled and pre-positioned first, and then welded and fixed.
[0048] Figure 5 A change schematic diagram of the bent arm when penetrating through the positioning hole in an embodiment of the present application is provided.
[0049] Please refer to Figure 5In the assembling of the first conductive member 1 and the second conductive member 2, the bending arm 22 can pass through the positioning hole 13 from the first surface 11 to the second surface 12. Specifically, when the first arm 221 and the second arm 222 pass through the positioning hole 13, the second arm 222 generates a deformation close to the first arm 221 so that the second arm 222 can pass through the positioning hole 13; after the second arm 222 passes through the positioning hole 13, the second arm 222 generates a deformation away from the first arm 221 so that the second arm 222 can abut against the second surface 12 at the periphery of the positioning hole 13.
[0050] In this way, the elastic connection between the first arm 221 and the second arm 222 can make the bending arm 22 easily pass through the positioning hole 13. After the bending arm 22 passes through the positioning hole 13, the main body 21 and the second arm 222 abut against the first conductive member 1 on the first surface 11 and the second surface 12, respectively, to form a positioning fit with the first conductive member 1 in the first direction, thereby achieving a pre-positioning, reducing the risk of the main body 21 deviating from the welding area of the first conductive member 1 in subsequent welding, and ensuring the close contact between the main body 21 and the first conductive member 1, thereby reducing the overall welding time and improving the welding quality and production efficiency.
[0051] Figure 6 A schematic view of the cooperation between the first conductive member and the second conductive member in an embodiment of the present application is provided.
[0052] Please refer to Figure 6 In some embodiments, the second arm 222 abuts against the second surface 12 in the first direction, and the positioning hole 13 limits the first arm 221 in the second direction and the third direction, respectively. The first direction, the second direction, and the third direction have an included angle therebetween. The second direction takes the Y-axis direction in the drawing as an example, and the third direction takes the X-axis direction in the drawing as an example.
[0053] In this way, the main body 21 and the second arm 222 cooperate to form a positioning fit with the first conductive member 1 in the first direction, and the first conductive member 1 limits the second conductive member 2 in the second direction and the third direction through the positioning hole 13, so that the second conductive member 2 and the first conductive member 1 achieve a positioning and limiting in multiple directions, thereby ensuring that the second conductive member 2 does not deviate from the welding area of the first conductive member 1 in subsequent welding.
[0054] In some embodiments, the main body 21 is in the form of a sheet as a whole, and the main body 21 is arranged in parallel with the first surface 12. In this way, the contact area between the main body 21 and the first surface 12 can be increased, thereby improving the welding quality. For example, the length direction of the main body 21 is parallel to the second direction, and the width direction of the main body 21 is parallel to the third direction.
[0055] In some embodiments, the first arm 221 is bent at the connection with the main body 21, and the second arm 222 is bent at the connection with the first arm 221, and the second arm 222 is bent away from the main body 21 along the third direction relative to the first arm 221.
[0056] In this way, the bent arm 22 is integrally formed by a bending process, and the main body 21 is integrally formed with the bent arm 22, so that the structure and processing of the second conductive part 2 can be simplified, the material cost is reduced, and the production efficiency is improved.
[0057] In some embodiments, the length of the bent arm 22 in the third direction gradually increases as it approaches the main body 21 along the first direction. The minimum length of the bent arm 22 in the third direction is less than the hole length of the positioning hole 13 in the third direction, and the maximum length of the bent arm 22 in the third direction is greater than the hole length of the positioning hole 13 in the third direction.
[0058] In some embodiments, the length of the bent arm 22 in the third direction is the distance between the first arm 221 and the second arm 222 in the third direction. That is, the distance between the first arm 221 and the second arm 222 in the third direction gradually shrinks away from the main body 21. The minimum distance between the first arm 221 and the second arm 222 in the third direction (i.e., the lower end length of the bent arm 22) is less than the hole length of the positioning hole 13 in the third direction, and the maximum distance between the first arm 221 and the second arm 222 in the third direction (i.e., the upper end length of the bent arm 22) is greater than the hole length of the positioning hole 13 in the third direction.
[0059] For convenience of description, the two ends of the bent arm 22 are defined as the upper end and the lower end below. The upper end of the bent arm 221 is connected to the main body 21, and the lower end of the bent arm 221 is the connection between the first arm 221 and the second arm 222, so that the bent arm 22 forms a V-shaped structure with a wide upper end and a narrow lower end.
[0060] It can be understood that, in the process of the bent arm 22 passing through the positioning hole 13 from the first surface 11 to the second surface 12, first the lower end of the bent arm 22 enters the positioning hole 13, then the upper end of the bent arm 22 enters the positioning hole 13, and finally the upper end of the bent arm 22 passes through the positioning hole 13.
[0061] By the shape of the bent arm 22 with a wide upper end and a narrow lower end, the lower end of the bent arm 22 can easily enter the positioning hole 13. In the process of the upper end of the bent arm 22 entering the positioning hole 13, the bent arm 22 as a whole shrinks in the third direction, and after the upper end of the bent arm 22 passes through the positioning hole 13, the bent arm 22 as a whole restores the deformation in the third direction. In this way, the second arm 222 will immediately move away from the first arm 221 along the third direction after passing through the positioning hole 13, so that the second arm 222 can pass over the positioning hole 13 in the third direction, and thus the second arm 222 can abut against the second surface 12 located outside the positioning hole 13.
[0062] In some embodiments, the two side hole walls of the positioning hole 13 in the second direction are respectively close to the two sides of the first arm 221. In this way, the positioning hole 13 limits the movement space of the first arm 221 in the second direction, achieving the limiting effect. At the same time, there is a certain gap between the hole wall of the positioning hole 13 and the side wall of the first arm 221, preventing the bending arm 22 from being stuck when passing through the positioning hole 13, and improving the installation positioning efficiency.
[0063] In some embodiments, the two side hole walls of the positioning hole 13 in the third direction are both spaced apart from the first arm 221. In this way, the inside of the positioning hole 13 leaves a certain movement space for the deformation between the first arm 221 and the second arm 222, facilitating the deformation of the bending arm 22 when passing through the positioning hole 13, and improving the installation positioning efficiency.
[0064] In some embodiments, the bending arm 22 has multiple bending arms 22 distributed on both sides of the main body 21 in the third direction. Correspondingly, the positioning hole 13 also has multiple positioning holes 13, and the number and position of the positioning hole 13 are set to correspond to the number and position of the bending arm 22, so that each bending arm 22 can be positioned with the corresponding positioning hole 13.
[0065] In the examples of the present application, the bending arm 22 is arranged in pairs, and each pair of bending arms 22 is symmetrically arranged on both sides of the main body 21. For example, the number of bending arms 22 of each second conductive part 2 is 2, and the two bending arms 22 are respectively located on both sides of the main body 21, and the two bending arms 22 are mirror-symmetrically arranged. Correspondingly, the number of positioning holes 13 of each first conductive part 1 is 2, and the positions of the two positioning holes 13 correspond to the positions of the first arms 221 of the two bending arms 22, respectively.
[0066] In other embodiments, the number of bending arms 22 can also be greater than or equal to 2, for example, the bending arm 22 can be provided with multiple pairs, and the multiple pairs of bending arms 22 are distributed along the second direction. The number and position of the positioning hole 13 can also be adaptively adjusted according to each bending arm 22, which is not limited in the present application.
[0067] Figure 7 The structure schematic diagram of the first conductive part in an embodiment of the present application is provided.
[0068] Please refer to Figure 7 In some embodiments, the first conductive part 1 has a first welding section 14 and a second welding section 15, wherein the first welding section 14 is connected with the second conductive part 2, the first welding section 14 is electrically connected with the second conductive part 2, the two surfaces of the first welding section 14 in the first direction respectively form the first surface 11 and the second surface 12, and the positioning hole 13 is formed in the first welding section 14.
[0069] The second welding section 15 is used to electrically connect with the battery cell 20, and a through hole is arranged in the middle of the second welding section 15. The second welding section 15 is arranged on both sides of the first welding section 14 in pairs, and the two second welding sections 15 arranged in pairs can be welded with two battery cells 20 respectively.
[0070] In some embodiments, the first welding section 14 is arranged protruding away from the battery cell 20 relative to the second welding section 15. For example, the middle of the first conductive member 1 is arranged protruding relative to both ends, so that the first conductive member 1 as a whole is arched. The middle of the first conductive member 1 forms the first welding section 14, and both ends of the first conductive member 1 form the second welding sections 15 in pairs.
[0071] In the case where the first conductive member 1 is fixed to the battery cell 20, the second welding section 15 is fixed to the battery cell 20, and the first welding section 14 is arranged protruding away from the battery cell 20, so that an avoiding space is formed between the first welding section 14 and the battery cell 20, which is used to accommodate the part of the connecting part of the first arm 221 and the second arm 222 passing through the positioning hole 13, so as to avoid the position interference between the second conductive member 2 and the battery cell 20.
[0072] Figure 8 A cooperation schematic view of the first conductive member and the second conductive member in another embodiment is provided for the present application.
[0073] As shown in Figure 8 , in another embodiment, the second arm 222 abuts against the first conductive member 1 along the third direction. For example, the second arm 222 abuts against the hole wall of the positioning hole 13 along the third direction. In this way, the positioning of the main body 21 along the third direction is realized by the abutment between the second arm 222 and the hole wall of the positioning hole 13. For example, the shortest distance between the second arm 222 and the main body 21 along the first direction is less than the thickness of the first conductive member 1, so that the end of the second arm 222 away from the first arm 221 can be accommodated in the positioning hole 13 and abut against the hole wall of the positioning hole 13.
[0074] In the case where a plurality of second arms 222 are arranged in pairs on both sides of the main body 21, each pair of second arms 222 is accommodated in the corresponding positioning hole 13 and abuts against the hole wall of the corresponding positioning hole 13 along the opposite direction, so as to improve the positioning effect.
[0075] Figure 9 A cooperation schematic view of the first conductive member and the second conductive member in another embodiment is provided for the present application. Figure 10 A partial enlarged view of position A in Figure 9 .
[0076] As shown in Figure 9 and Figure 10 , please refer to Figure 8In yet another embodiment, the second arm 222 abuts against the first conductive member 1 along the first direction and the third direction respectively. Exemplarily, the second face 12 of the first conductive member 1 is provided with a notch 16 between the hole wall of the positioning hole 13 and the second arm 222 abuts against the notch 16 at the end away from the first arm 221.
[0077] In this way, the second arm 222 simultaneously has the force along the first direction and the third direction on the notch 16, and the second arm 222 can cooperate with the first conductive member 1 to realize positioning in the first direction and the third direction respectively, thereby improving the positioning effect. Moreover, the two second arms 222 located on both sides of the main body 21 can abut against the corresponding notches 16 in opposite directions, thereby further improving the positioning effect.
[0078] Figure 11 A cooperation schematic view of the first conductive member and the second conductive member in yet another embodiment of the present application is provided.
[0079] Please refer to Figure 11 In yet another embodiment, the second arm 222 is arranged to be bent towards the main body 21 relative to the first arm 221. The first arm 221 and the main body 21 form a first bending angle, the first arm 221 and the second arm 222 form a second bending angle, the sum of the angle of the first bending angle and the angle of the second bending angle is less than 180°, and the opening of the first bending angle and the opening of the second bending angle are towards the same face of the first arm 221.
[0080] It is worth noting that the shapes of the first arm 221 and the second arm 222 in the above embodiments are all examples of deformation by bending the arm 22 at a specified angle, and are not limited to the specific bending angle or bending shape of the bent arm 22. In actual application, the bending angle or bending shape of the bent arm 22 can be configured according to the requirements of positioning cooperation, and the present application does not limit this.
[0081] As Figures 1 to 3 shown, the present application embodiment further provides a battery pack 100. The battery pack 100 comprises a battery cell 20, a sampling plate and a conductive sampling assembly 10 as in any one of the above embodiments. Wherein the first conductive member 1 is electrically connected with the battery cell 20, and the second conductive member 2 is electrically connected with the sampling plate. Exemplarily, the battery cell 20 adopts a square cell, the first conductive member 1 is welded and fixed with the battery cell 20, and the second conductive member 2 is electrically connected with the sampling plate through a sampling wire.
[0082] As Figures 1 to 3As shown, the embodiment of the present application further provides a storage power supply 1000. The storage power supply 1000 comprises a shell 200, a functional circuit board and the battery pack 100 in the above embodiment, the functional circuit board and the battery pack 100 are both arranged in the shell 200, and the functional circuit board is electrically connected with the battery pack 100. The battery pack 100 can store electric energy, and in the case that the storage power supply 1000 is connected with an external power device, the battery pack 100 can provide electric energy for the power device.
[0083] The working principle and beneficial effects of the battery pack 100 and the storage power supply 1000 provided by the present application are specifically described in the foregoing embodiments, and will not be described herein again.
[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application rather than limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application.
Claims
1. A conductive sampling assembly for use in a battery pack, the battery pack comprising a cell and a sampling plate, the conductive sampling assembly comprising: The application relates to a conductive sampling assembly. The first conductive part is electrically connected with the battery cell and has a first surface and a second surface opposite to each other, and the first conductive part is provided with a positioning hole penetrating through the first surface and the second surface; the second conductive part is electrically connected with the sampling plate, and the second conductive part comprises a main body and a bending arm connected with the main body, the main body is attached to the first surface, the bending arm comprises a first arm and a second arm, one end of the first arm is connected with the main body, and the other end of the first arm is elastically connected with the second arm; when the first arm and the second arm pass through the positioning hole, the second arm is deformed to approach the first arm so that the second arm can pass through the positioning hole, and after the second arm passes through the positioning hole, the second arm is deformed to move away from the first arm so that the second arm can abut against the second surface located at the periphery of the positioning hole. The second arm abuts against the second surface along a first direction, and the hole wall of the positioning hole limits the first arm along a second direction and a third direction respectively, and the first direction, the second direction and the third direction have an included angle.
2. The electrically conductive sampling assembly of claim 1, wherein, The connection between the first arm and the main body is arranged in a bending mode, the connection between the second arm and the first arm is also arranged in a bending mode, and the second arm is bent away from the main body along the third direction relative to the first arm.
3. The electrically conductive sampling assembly of claim 2, wherein, The length of the second arm to the first arm in the third direction gradually increases along the first direction; the minimum length of the second arm to the first arm in the third direction is smaller than the hole body length of the positioning hole in the third direction, and the maximum length of the second arm to the first arm in the third direction is greater than the hole body length of the positioning hole in the third direction.
4. The electrically conductive sampling assembly of claim 2, wherein, The two side hole walls of the positioning hole in the second direction are close to the two sides of the first arm respectively.
5. The electrically conductive sampling assembly of claim 2, wherein, The two side hole walls of the positioning hole in the third direction have a spacing with the first arm; when the first arm and the second arm pass through the positioning hole, the hole wall of the positioning hole pushes the second arm so that the second arm is deformed to approach the first arm along the third direction.
6. The electrically conductive sampling assembly of claim 2, wherein, The bending arm has a plurality of bending arms, and the plurality of bending arms are distributed on opposite sides of the main body; the first conductive part is provided with a plurality of positioning holes, and the plurality of bending arms are correspondingly arranged in the plurality of positioning holes.
7. The electrically conductive sampling assembly of claim 1, wherein, The first conductive part has a first welding section and a second welding section, the first welding section is electrically connected with the second conductive part, the second welding section is used for being electrically connected with the battery cell, and the first welding section is arranged in a convex mode relative to the second welding section and away from the battery cell.
8. The electrically conductive sampling assembly of claim 1, wherein, The application relates to a conductive sampling assembly.
9. A battery pack, characterized by, The energy storage power supply comprises a shell, a functional circuit board and the battery pack as claimed in claim 9, the functional circuit board and the battery pack are arranged in the shell, and the functional circuit board is electrically connected with the battery pack.
10. An energy storage power supply, characterized by,