Auxiliary tool

Abstract

The utility model discloses an auxiliary tool, and relates to the technical field of new energy, the auxiliary tool comprises a base, an upper cover and a first conduction assembly, the base is provided with an accommodating groove, and the accommodating groove is used for placing a battery; the first conduction assembly is used for connecting the batteries in the two adjacent accommodating grooves in series and comprises a first conduction piece, two first conductive parts are arranged on the first conduction piece, and the first conductive parts are used for being in contact with battery poles so as to realize conduction. According to the auxiliary tool, after the upper cover is connected with the base, the upper cover can enable the first conductive part to be in close contact with the battery pole, and the first conductive part and the second conductive part are subjected to counter-acting force applied by the first spring and the second spring respectively, so that the first conductive part and the second conductive part are in good contact with the battery pole; the counter-acting force applied by the first spring and the second spring can play a role in limiting and fixing the battery; and compared with a welding connection mode, the battery pole is not damaged, and the battery pole is convenient to assemble and disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy, and particularly relates to an auxiliary tooling. Background Art

[0002] With the rapid development of the new energy industry, the demand for electric vehicles and energy storage power stations has increased greatly, and the overall performance of the system is not determined by single cells but by the performance and parameters of the battery pack. Single cells are connected in series to obtain high voltage and in parallel to obtain a battery pack with high capacity. After the single cells are grouped, the performance of the battery pack, such as energy density, durability, and safety, will decline to a certain extent compared with that of single cells.

[0003] At present, the method of combining multiple single cells into a test battery pack is to connect the poles of multiple single cells by laser welding. During the test, if the consistency of the battery cells in a certain battery pack is not good, it is necessary to disassemble the test battery pack and replace one or several possibly faulty single cells. Since the connection and assembly are carried out by welding, the poles of the replaced single cells are generally damaged. Even if no faults are found in subsequent tests, these single cells are often scrapped and cannot be grouped again. Therefore, there are still disadvantages and deficiencies in the prior art. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an auxiliary tooling, which solves the technical problem that the method of combining multiple single cells into a test battery pack at present is to connect the poles of multiple single cells by laser welding, and the poles of the replaced single cells disassembled are generally damaged and cannot be used again.

[0005] To achieve the above purpose, the utility model provides an auxiliary tooling, including:

[0006] A base, on which a receiving groove is arranged, and the receiving groove is used for placing batteries;

[0007] An upper cover, which is detachably connected to the base;

[0008] A first conduction component, which is used to connect the batteries in adjacent two of the receiving grooves in series, including a first conduction piece, and two first conductive parts are arranged on the first conduction piece, and the first conductive parts are used for contacting with the battery poles to achieve conduction;

[0009] Wherein, when the upper cover is connected to the base, the upper cover can make the first conductive part closely contact with the battery poles.

[0010] Preferably, the first conduction component further includes:

[0011] A first mounting plate, which is arranged in parallel with the first conduction piece;

[0012] The first sleeve is fixedly connected to the first mounting plate;

[0013] The first guide post is located between the first conduction member and the first mounting plate, one end of which is fixedly connected to the first conduction member, and the other end is received in the first sleeve and slidably connected to the first mounting plate;

[0014] The first spring is sleeved on the first guide post and is located between the first conduction member and the first mounting plate;

[0015] The first connector is arranged on the first mounting plate and is connected to the first guide post.

[0016] Preferably, it further includes a second conduction assembly for connecting the positive and negative electrodes of the battery to the test line. The second conduction assembly includes:

[0017] The second mounting plate;

[0018] The second conduction member is arranged in parallel with the second mounting plate. The second conduction member is provided with a second conductive portion for contacting the battery pole.

[0019] The second sleeve is fixedly connected to the second mounting plate,

[0020] The second guide post is located between the second conduction member and the first conduction member. One end of it is fixedly connected to the second conduction member, and the other end is received in the second sleeve and slidably connected to the second mounting plate;

[0021] The second spring is sleeved on the second guide post and is located between the second conduction member and the second mounting plate;

[0022] The second connector is arranged on the second conduction member and is used for connecting the positive / negative electrodes of the test line;

[0023] The third connector is arranged on the second mounting plate and is connected to the second guide post.

[0024] Preferably, a plurality of through holes are provided on the top surface of the upper cover. After the upper cover is connected to the base, at least part of the first connector and the third connector extends out of the upper cover through the through holes.

[0025] Preferably, the upper cover is provided with connection holes. The connection holes are located on the side surface of the upper cover, and the number of the connection holes is two. The two connection holes are used for the positive / negative electrodes of the test line to be respectively connected to two of the second connectors in two groups of the second conduction assemblies.

[0026] Preferably, the plurality of receiving grooves are distributed in a rectangular array.

[0027] Preferably, the receiving grooves are arranged in two rows, the second conduction components are located at the first battery in each row, two adjacent batteries in each row are connected in series through the first conduction components, and the last battery in the first row and the last battery in the second row are connected in series through the first conduction components.

[0028] Preferably, the base is provided with first heat dissipation holes, the first heat dissipation holes are located on the bottom surface and the side surface of the base, and the first heat dissipation holes are communicated with the receiving grooves.

[0029] Preferably, the upper cover is provided with second heat dissipation holes.

[0030] Preferably, the upper cover and the base are detachably connected through a buckle lock.

[0031] Compared with the above background art, after the upper cover and the base of the auxiliary tooling provided by the present utility model are connected, when the upper cover applies a downward force to the first mounting plate and the second mounting plate, the first spring and the second spring are compressed, and the first conduction member and the second conduction member respectively receive the reaction forces exerted by the first spring and the second spring, so that the first conductive part and the second conductive part are in good contact with the battery pole columns, ensuring conduction, and the reaction forces exerted by the first spring and the second spring can play a role in limiting and fixing the battery; compared with the welding connection method, it not only does not damage the battery pole columns, but also is more convenient for installation and disassembly, and can improve the efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the provided drawings.

[0033] Figure 1 It is a schematic structural diagram of the auxiliary tooling provided by the embodiment of the present utility model;

[0034] Figure 2 is Figure 1 a schematic structural diagram from another perspective;

[0035] Figure 3 is Figure 1 a schematic structural diagram of the shown auxiliary tooling after removing the upper cover;

[0036] Figure 4 is Figure 1 an exploded schematic diagram of the shown auxiliary tooling;

[0037] Figure 5Explosion schematic diagram of the first conduction component in the auxiliary tooling;

[0038] Figure 6 Explosion schematic diagram of the second conduction component in the auxiliary tooling.

[0039] Figures 1 to 6 In the figure, reference numerals: 10, base; 11, receiving groove; 12, handle; 13, first heat dissipation hole; 20, upper cover; 21, buckle lock; 22, second heat dissipation hole; 23, connection hole; 24, through hole; 30, first conduction component; 31, first mounting plate; 32, first conduction piece; 321, first conductive part; 33, first guide post; 34, first spring; 35, first connector; 36, first sleeve; 40, second conduction component; 41, second mounting plate; 42, second conduction piece; 421, second conductive part; 43, second guide post; 44, second spring; 45, second connector; 46, third connector; 47, second sleeve; 50, battery. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] In order to enable those skilled in the art in the technical field to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0042] The present invention provides an auxiliary tooling for series connection testing, which can connect multiple batteries 50 in series without welding, and can perform charge and discharge testing and battery 50 monomer consistency screening, with relatively high working efficiency.

[0043] Please refer to Figures 1 to 3 together. The auxiliary tooling provided by the present invention includes a base 10, an upper cover 20, a first conduction component 30 and a second conduction component 40.

[0044] The base 10 is generally in a cuboid structure. A plurality of receiving grooves 11 are provided on the base 10, and the receiving grooves 11 are used for placing the batteries 50 to be subjected to series connection testing. In this embodiment, the plurality of receiving grooves 11 are distributed in a rectangular array.

[0045] In this embodiment, the receiving slots 11 are provided with two rows, the second conductive component 40 is provided on the first battery 50 in each row, the two adjacent batteries 50 in each row are connected in series through the first conductive component 30, and the last battery 50 in the first row and the last battery 50 in the second row are connected in series through the first conductive component 30. It should be noted that the number of rows and columns of the receiving slots 11 can be set as needed, and is not specifically limited.

[0046] The upper cover 20 is generally a rectangular parallelepiped structure, and is located on the top of the base 10. The upper cover 20 can fix the battery 50 in the receiving groove 11 of the base 10. The upper cover 20 is detachably connected to the base 10. In this embodiment, the upper cover 20 and the base 10 are detachably connected by a buckle lock 21, which is not only convenient for assembly and disassembly, but also reliable. In other embodiments, other detachable connection methods can also be used between the upper cover 20 and the base 10, which are not specifically limited.

[0047] Please refer to Figures 2 to 6 The first conducting component 30 is used to connect the batteries 50 in the receiving slots 11 in series. The first conducting component 30 includes a first mounting plate 31 , a first conducting member 32 , a first sleeve 36 , a first guide column 33 , a first spring 34 and a first connector 35 .

[0048] Please refer to Figures 2 to 6 The first conductive member 32 is generally in a rectangular sheet structure, and is provided with a first conductive portion 321, which is used to contact the pole of the battery 50 to conduct the circuit. There are two first conductive portions 321, and when in use, the two first conductive portions 321 on the first conductive member 32 are respectively connected to the poles of two adjacent batteries 50. It should be noted that the two first conductive portions 321 are respectively connected to the positive pole of one battery 50 and the negative pole of the other battery 50, and through such a setting, the batteries 50 are connected in series.

[0049] The first conducting member 32 and the first mounting plate 31 are arranged in parallel, and the first conductive portion 321 is located on the side of the first conducting member 32 away from the first guide column 33; the first sleeve 36 is fixedly arranged on the first mounting plate 31, and the first guide column 33 is located between the first conducting member 32 and the first mounting plate 31, one end of the first guide column 33 is fixedly connected to the first conducting member 32, and the other end of the first guide column 33 is accommodated in the first sleeve 36, and the first guide column 33 is slidably connected to the first mounting plate 31; the first spring 34 is sleeved on the first guide column 33, and the first spring 34 is located between the first conducting member 32 and the first mounting plate 31; the first connector 35 is arranged on the first mounting plate 31, and one end of the first connector 35 passes through the first mounting plate 31 and is connected to the first guide column 33.

[0050] By setting the first spring 34, when the first spring 34 is compressed during use, the first spring 34 can apply a reaction force to the first mounting plate 31, which on the one hand limits and fixes the battery 50, and on the other hand enables the first conductive part 321 on the first mounting plate 31 to be in close contact with the pole of the battery 50 to ensure conduction.

[0051] By providing the first conducting component 30 , the batteries 50 in two adjacent receiving slots 11 can be connected in series, wherein the two first conductive parts 321 are respectively connected to the positive electrode column of one of the batteries 50 and the negative electrode column of the other battery 50 .

[0052] It should be noted that, in the first conductive component 30 that connects the last battery 50 in the first row and the last battery 50 in the second row in series, the first conductive member 32 is roughly a U-shaped sheet structure. Through such a setting, it is convenient to connect the two batteries 50 in the first row and the second row in series without interfering with other second conductive components 40 and making the structure more compact.

[0053] The auxiliary tooling provided by the utility model further includes a second conducting component 40, and there are two groups of the second conducting components 40. The second conducting components 40 are used to connect the battery 50 with the positive and negative electrodes of the test line.

[0054] Please refer to Figures 2 to 6 The second conducting assembly 40 includes a second mounting plate 41, a second conducting member 42, a second sleeve 47, a second guide post 43, a second spring 44, a second connector 45 and a third connector 46. The second conducting member 42 is generally a rectangular sheet structure, and a second conducting portion 421 is provided on the second conducting member 42, and the second conducting portion 421 is used to contact the pole of the battery 50 to conduct the circuit.

[0055] Please refer to Figures 2 to 6 , the second conductive member 42 and the second mounting plate 41 are arranged in parallel, and the second conductive part 421 is located on the side of the second conductive member 42 away from the second guide post 43; the second sleeve 47 is arranged on the second mounting plate 41, and the second guide post 43 is located between the second conductive member 42 and the second mounting plate 41, one end of the second guide post 43 is fixedly connected to the second conductive member 42, and the other end of the second guide post 43 is accommodated in the second sleeve 47, and the second guide post 43 is slidably connected to the second mounting plate 41; the second spring 44 is sleeved on the second guide post 43, and the second spring 44 is located between the second conductive member 42 and the second mounting plate 41. The second connector 45 is arranged on the second conductive member 42, and the second connector 45 is located on the side of the second conductive member 42 away from the second conductive part 421, and the second connector 45 is used to connect the positive / negative poles of the test line; the third connector 46 is arranged on the second mounting plate 41, and one end of the third connector 46 passes through the second mounting plate 41 and is connected to the second guide post 43.

[0056] In some of these embodiments, a handle 12 is provided on the base 10. The number of handles 12 is two, and the two handles 12 are respectively located on both sides of the base 10. By providing the handle 12, it is convenient for the staff to move the auxiliary tooling.

[0057] In some of these embodiments, a first heat dissipation hole 13 is provided on the base 10. The first heat dissipation hole 13 has a rectangular structure. The first heat dissipation hole 13 is located on the bottom surface and side surface of the base 10. Among them, the first heat dissipation hole 13 on the base 10 communicates with the receiving groove 11 on the base 10. By providing the first heat dissipation hole 13, the heat dissipation capacity of the auxiliary tooling can be improved, and damage caused by the inability of the heat inside the auxiliary tooling to dissipate in time during series testing can be avoided. It can be understood that the size of the first heat dissipation hole 13 provided on the base 10 is relatively large. Through such a setting, the heat dissipation speed can be accelerated and the heat dissipation effect can be improved.

[0058] In some of these embodiments, a second heat dissipation hole 22 is provided on the top surface of the upper cover 20. The second heat dissipation hole 22 has a rectangular structure. Through the second heat dissipation hole 22 provided on the upper cover 20, after the upper cover 20 is connected to the base 10, the heat dissipation capacity of the auxiliary tooling can be improved, and the heat inside the auxiliary tooling can be dissipated in time.

[0059] In some of these embodiments, please refer to Figure 2 , connection holes 23 are provided on the upper cover 20. The connection holes 23 are located on the side surface of the upper cover 20. The number of connection holes 23 is two. The connection holes 23 are provided close to one side of the second connector 45. The two connection holes 23 are used for the positive / negative poles of the test wires to be respectively connected to two second connectors 45 in two groups of second conduction components 40.

[0060] In some of these embodiments, a plurality of through holes 24 are provided on the top surface of the upper cover 20. After the upper cover 20 is connected to the base 10, at least a part of the first connector 35 and the third connector 46 extends out of the upper cover 20 through the through holes, which is convenient for subsequent testing of the battery 50.

[0061] The using process of the auxiliary tooling provided by the present utility model is as follows: First, the batteries 50 are placed one by one in the receiving grooves 11 of the base 10; Secondly, the batteries 50 in the receiving grooves 11 are connected in series through the first conduction component 30. Two first conductive parts 321 on the first conductive member 32 are respectively connected to the positive electrode post of one battery 50 and the negative electrode post of another battery 50; After the batteries 50 are connected in series, the upper cover 20 is connected to the base 10 through the buckle lock 21, and the first connector 35 and the third connector 46 extend out from the through holes at the top of the upper cover 20; Finally, the positive / negative poles of the test wires are respectively connected to two second connectors 45 in two groups of second conduction components 40 through the two connection holes 23, and then the batteries 50 in the receiving grooves 11 can be tested in series.

[0062] After the upper cover 20 is connected to the base 10 in the auxiliary tooling provided by the present utility model, when the upper cover 20 applies a downward force to the first mounting plate 31 and the second mounting plate 41, the first spring 34 and the second spring 44 are compressed. The first conduction member 32 and the second conduction member 42 are respectively subjected to the reaction forces applied by the first spring 34 and the second spring 44, so that the first conductive portion 321 and the second conductive portion 421 are in good contact with the battery 50 pole columns, ensuring conduction.

[0063] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0064] In this article, specific examples are used to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art of this technology, without departing from the principle of the present utility model, several improvements and modifications can be made to the present utility model, and these improvements and modifications also fall within the protection scope of the present utility model.

Claims

1. An auxiliary tooling, characterized in that, For series testing of batteries, including: A base, on which a receiving groove is provided for placing batteries; An upper cover, detachably connected to the base; A first conduction component for serially connecting the batteries in two adjacent receiving grooves, including a first conduction piece, on which two first conductive parts are provided for contacting the battery pole columns to achieve conduction; Wherein, after the upper cover is connected to the base, the upper cover can make the first conductive part closely contact the battery pole column.

2. The auxiliary tooling according to claim 1, wherein The first conduction component further includes: A first mounting plate, arranged in parallel with the first conduction piece; A first sleeve, fixedly connected to the first mounting plate; A first guide post, located between the first conduction piece and the first mounting plate, with one end fixedly connected to the first conduction piece and the other end received in the first sleeve and slidably connected to the first mounting plate; A first spring, sleeved on the first guide post and located between the first conduction piece and the first mounting plate; A first connector, arranged on the first mounting plate and connected to the first guide post.

3. The auxiliary tooling according to claim 2, wherein, It further includes a second conduction component for connecting the positive and negative poles of the battery to the test line. The second conduction component includes: A second mounting plate; A second conduction piece, arranged in parallel with the second mounting plate, on which a second conductive part is provided for contacting the battery pole column; A second sleeve, fixedly connected to the second mounting plate; A second guide post, located between the second conduction piece and the first conduction piece, with one end fixedly connected to the second conduction piece and the other end received in the second sleeve and slidably connected to the second mounting plate; A second spring, sleeved on the second guide post and located between the second conduction piece and the second mounting plate; A second connector, arranged on the second conduction piece for connecting the positive / negative pole of the test line; A third connector, arranged on the second mounting plate and connected to the second guide post.

4. The auxiliary tooling according to claim 3, characterized in that, The top surface of the upper cover is provided with a plurality of through holes. After the upper cover is connected to the base, at least part of the first connector and the third connector extends out of the upper cover through the through holes.

5. The auxiliary tooling according to claim 3, wherein, The upper cover is provided with connection holes on the side surface of the upper cover. The number of the connection holes is two, and the two connection holes are used for connecting the positive / negative poles of the test line to the two second connectors in two groups of the second conduction components respectively.

6. The auxiliary tooling according to claim 3, characterized in that, The plurality of receiving grooves are distributed in a rectangular array.

7. The auxiliary tooling according to claim 6, wherein The receiving grooves are arranged in two rows. The second conduction component is located at the first battery in each row. The two adjacent batteries in each row are serially connected through the first conduction component. The last battery in the first row and the last battery in the second row are serially connected through the first conduction component.

8. The auxiliary tooling according to claim 1, wherein The base is provided with first heat dissipation holes on the bottom surface and the side surface of the base, and the first heat dissipation holes are communicated with the receiving grooves.

9. The auxiliary tooling according to claim 1, wherein, The upper cover is provided with second heat dissipation holes.

10. The auxiliary tooling according to any one of the above-mentioned claims 1-9, characterized in that, The upper cover and the base are detachably connected by a snap lock.

Images