Battery detection tool and battery detection system

Abstract

The embodiment of the utility model provides a battery detection tool and a battery detection system, and relates to the technical field of batteries. The battery detection tool comprises a first bearing part, a conductive assembly and a second bearing part, the first bearing part is used for bearing a battery monomer, and the battery monomer comprises a first tab part and a second tab part; the conductive assembly is installed on the first bearing piece, the conductive assembly is connected with the first tab part and the second tab part and used for being connected with an external detection circuit, and the first bearing piece is installed on the second bearing piece. Before detection, the single battery is fixed on the first bearing piece, the first tab part and the second tab part are connected through the conductive assembly, the first bearing piece with the single battery is directly placed at a detection station during detection, and the conductive assembly is in butt joint with an external detection circuit, so that the detection time can be saved to a certain extent, and the detection efficiency can be improved to a certain extent.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and more specifically, to a battery testing tool and a battery testing system. Background Art

[0002] Battery devices are widely used in electronic devices, such as mobile phones, laptop computers, battery cars, electric cars, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes, and electric tools, etc.

[0003] During the production process of battery devices, performance testing of battery cells is required. In related technologies, the testing requires steps such as fixing and wiring of battery cells at the testing station. The whole process is cumbersome, which affects the overall testing efficiency. Therefore, how to improve the efficiency of performance testing of battery cells is an important research direction in battery technology. Utility Model Content

[0004] The present application provides a battery testing tool and a battery testing system, which can improve the efficiency of performance testing of battery cells.

[0005] In a first aspect, an embodiment of the present application provides a battery detection tool, comprising a first carrier, a conductive component and a second carrier, wherein the first carrier is used to carry a battery cell, wherein the battery cell comprises a first pole ear portion and a second pole ear portion; the conductive component is installed on the first carrier, and the conductive component is used to be respectively connected to the first pole ear portion and the second pole ear portion when the battery cell is fixed on the first carrier, and is used to connect to an external detection circuit; the first carrier is installed on the second carrier.

[0006] By adopting the above technical scheme, the battery cell can be fixed to the first carrier before detection, and the first pole ear part and the second pole ear part can be connected through the conductive component. During detection, the first carrier with the battery cell can be directly placed on the detection station, and only the conductive component needs to be connected with the external detection circuit. Compared with the related technology that requires first placing the battery cell on the detection station and then connecting the first pole ear part and the second pole ear part to the external detection circuit respectively, it can not only save detection time and improve detection efficiency to a certain extent, but also because only one wiring step is required, it can be conducive to the automation of battery cell detection and loading; in addition, one or more first carriers can be placed on the second carrier, and the first carrier can improve the stability of the first carrier on the detection station, and multiple first carriers can be installed on the second carrier to achieve multiple battery cells being moved to the detection station for detection at the same time.

[0007] In some embodiments of the present application, the conductive component includes a first conductive member, a first pole lug connector and a second pole lug connector, the first conductive member is mounted on the first carrier and is used to connect the detection circuit; the first pole lug connector is conductively connected to the first conductive member and is used to connect the first pole lug portion; the second pole lug connector is conductively connected to the first conductive member and is used to connect the second pole lug portion.

[0008] By adopting the above technical solution, the conductive component is designed to include a first conductive member, a first pole lug connector and a second pole lug connector. The first conductive member is used to connect the first pole lug connector, the second pole lug connector and the detection circuit. The connection and fixation of the battery cell are completed by connecting the first pole lug connector with the first pole lug part and connecting the second pole lug connector with the second pole lug part.

[0009] In some embodiments of the present application, the first carrier includes a first end and a second end that are opposite to each other, and the first conductive member is mounted on the first end.

[0010] By adopting the above technical solution, the first conductive member is installed at one end of the first supporting member, so that the first conductive member can be conveniently connected to an external detection circuit.

[0011] In some embodiments of the present application, the first conductive member has a connecting end extending from the first end in a direction away from the second end, and the connecting end is used to connect to the detection circuit.

[0012] By adopting the above technical solution, the first conductive member is provided with a connecting end extending out of the first end, and the detection circuit can be connected via the connecting end, which makes it more convenient to connect the first conductive member with the detection circuit.

[0013] In some embodiments of the present application, the first tab connector and the second tab connector are both adjacent to and connected to the first conductive member; or, the first tab connector is adjacent to and connected to the first conductive member, and the second tab connector is located at the second end and conductively connected to the first conductive member.

[0014] By adopting the above technical solution, when the first pole tab connector and the second pole tab connector are designed to be adjacent to the first conductive member, the battery cells with the positive and negative pole tabs on the same side can be matched; when the first pole tab connector is designed to be adjacent to the first conductive member and the second pole tab connector is located at the second end, the battery cells with the positive and negative pole tabs on opposite sides can be matched.

[0015] In some embodiments of the present application, the battery testing tool also includes a first limit assembly, which is installed on the first carrier and is used to limit the displacement of the battery cell along a first direction, and the first direction intersects with the arrangement direction from the first end to the second end.

[0016] By adopting the above technical solution, the first limiting assembly can be used to limit and fix the battery cell in the first direction, thereby improving the stability of the battery cell on the first carrier.

[0017] In some embodiments of the present application, the first limiting assembly includes a first limiting member and a second limiting member arranged at intervals along the first direction, the first limiting member is used to limit one side of the battery cell along the first direction, and the second limiting member is used to limit the other side of the battery cell along the first direction.

[0018] By adopting the above technical solution, the first limiting assembly is designed to include a first limiting member and a second limiting member to limit the battery cell in a first direction. The structure is simple and the battery cell can be easily installed between the first limiting member and the second limiting member.

[0019] In some embodiments of the present application, the first pole tab connector is a clamping member for clamping the first pole tab portion, and / or the second pole tab connector is a clamping member for clamping the second pole tab portion.

[0020] By adopting the above technical solution, the first pole tab connector and / or the second pole tab connector is designed as a clamping member to clamp the pole tab of the battery cell, thereby facilitating the connection between the battery cell and the conductive component.

[0021] In some embodiments of the present application, a first heat dissipation through hole is formed on a portion of the first carrier used for supporting the battery cell.

[0022] By adopting the above technical solution, a first heat dissipation through hole is provided on the first carrier, which is beneficial to the heat dissipation of the battery cell when the battery cell is tested, and reduces the possibility that the over-high temperature of the battery cell will affect the test result.

[0023] In some embodiments of the present application, the battery testing tool also includes a second conductive member, which is installed on the second carrier, and the second conductive member is arranged facing the first conductive member and connected to the first conductive member. The second conductive member is used to connect the detection circuit, and the first conductive member is connected to the detection circuit through the second conductive member.

[0024] By adopting the above technical solution, the battery detection tool is designed to further include a second conductive member, and the first conductive member and the detection circuit are switched through the second conductive member, which can facilitate the connection between the first conductive member and the detection circuit.

[0025] In some embodiments of the present application, the first conductive member and the second conductive member are detachably connected.

[0026] By adopting the above technical solution, the first conductive member and the second conductive member are designed to be detachably connected, so as to facilitate the disassembly and assembly of the first conductive member and the second conductive member.

[0027] In some embodiments of the present application, the first conductive member and the second conductive member are plugged into each other.

[0028] By adopting the above technical solution, after the first carrier is placed on the second carrier, the plug-in method can achieve connection with the second conductive member by only moving the first carrier and the first conductive member thereon in one direction, thereby improving the connection efficiency between the first conductive member and the second conductive member.

[0029] In some embodiments of the present application, the battery testing tool further includes a second limiting assembly, and the second limiting assembly is used to limit the displacement of the first carrier along a first direction, and the first direction intersects with the arrangement direction of the first conductive member and the second conductive member.

[0030] By adopting the above technical solution, the second limiting assembly is used to limit the position of the first bearing member along the first direction, thereby improving the stability of the first bearing member on the second bearing member.

[0031] In some embodiments of the present application, the second limiting assembly includes a third limiting member and a fourth limiting member arranged at intervals along the first direction, the third limiting member cooperates with a side limit of the first supporting member along the first direction, and the fourth limiting member cooperates with another side limit of the first supporting member along the first direction.

[0032] By adopting the above technical solution, the second limiting assembly is designed to include a third limiting member and a fourth limiting member, which respectively limit the two sides of the first bearing member. The structure is simple and the first bearing member can be easily installed on the second bearing member.

[0033] In some embodiments of the present application, the first bearing member is slidably connected to the third limiting member along one side of the first direction, and / or the first bearing member is slidably connected to the fourth limiting member along the other side of the first direction.

[0034] By adopting the above technical solution, the first carrier is designed to be slidably connected to the third limiter and the fourth limiter respectively, which not only facilitates the installation of the first carrier on the second carrier, but also facilitates the movement of the first carrier and thereby drives the docking of the first conductive member and the second conductive member.

[0035] In some embodiments of the present application, a portion of the second carrier that supports the first carrier is provided with a second heat dissipation through hole.

[0036] By adopting the above technical solution, the second carrier is designed to have a second heat dissipation through hole, thereby improving the heat dissipation performance of the tooling and reducing the possibility of the battery cell being overheated during testing.

[0037] In a second aspect, an embodiment of the present application provides a battery production system, comprising a battery testing tool as described in any one of the above technical solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0039] Figure 1 A schematic diagram of the structure of a battery testing tool provided in some embodiments of the present application;

[0040] Figure 2 A schematic diagram of the structure of another battery testing tool provided in some embodiments of the present application;

[0041] Figure 3 A schematic structural diagram of yet another battery testing tool provided in some embodiments of the present application.

[0042] The reference numerals of the specific embodiments are as follows:

[0043] 100. Battery testing tooling;

[0044] 10. first carrier; 11. first end; 12. second end; 13. first heat dissipation through hole;

[0045] 20. Conductive component; 21. First conductive member; 211. First circuit board; 212. Conductive sheet; 213. Connecting end; 22. First tab connector; 23. Second tab connector; 24. Third conductive member;

[0046] 30. First limiting component; 31. First limiting member; 32. Second limiting member;

[0047] 40. second carrier; 41. second heat dissipation through hole;

[0048] 50. A second conductive member;

[0049] 60. Second limiting component; 61. Third limiting component; 62. Fourth limiting component;

[0050] 200, battery cell; 210, first pole ear portion; 220, second pole ear portion;

[0051] X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0053] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0054] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0055] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0056] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0057] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0058] The term “plurality” used in this application refers to two or more (including two).

[0059] The battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity. For example, the battery mentioned in the present application may include a battery module or a battery pack. The battery generally includes a battery box for encapsulating one or more battery cells. The battery box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells.

[0060] The battery cells mentioned in the embodiments of the present application may be lithium-ion secondary battery cells, lithium-ion primary battery cells, lithium-sulfur battery cells, sodium-lithium-ion battery cells, sodium-ion battery cells or magnesium-ion battery cells, etc., which are not limited in the embodiments of the present application. The battery cells may be cylindrical, flat, cuboid or other shapes, which are not limited in the embodiments of the present application.

[0061] The battery cell mentioned in the embodiments of the present application may include an electrode assembly and an electrolyte, and the electrode assembly includes a positive electrode sheet, a negative electrode sheet and a separator. The battery cell mainly relies on the movement of metal ions between the positive electrode sheet and the negative electrode sheet to work. The positive electrode sheet includes a positive current collector and a positive active material layer, and the positive active material layer is coated on the surface of the positive current collector; the positive current collector includes a positive electrode coating area and a positive electrode ear connected to the positive electrode coating area, the positive electrode coating area is coated with a positive electrode active material layer, and the positive electrode ear is not coated with a positive electrode active material layer. Taking a lithium-ion battery cell as an example, the material of the positive current collector can be aluminum, and the positive electrode active material layer includes a positive electrode active material, and the positive electrode active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganese oxide, etc. The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer, and the negative electrode active material layer is coated on the surface of the negative electrode current collector; the negative electrode current collector includes a negative electrode coating area and a negative electrode tab connected to the negative electrode coating area, and the negative electrode coating area is coated with a negative electrode active material layer, and the negative electrode tab is not coated with a negative electrode active material layer. The material of the negative electrode current collector can be copper, and the negative electrode active material layer includes a negative electrode active material, and the negative electrode active material can be carbon or silicon, etc. The material of the separator can be PP (polypropylene, polypropylene) or PE (polyethylene, polyethylene), etc.

[0062] The battery cells described in the embodiments of the present application are suitable for batteries and electrical devices using batteries. Electrical devices may be vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and electric tools, etc. Vehicles may be fuel vehicles, gas vehicles, or new energy vehicles, and new energy vehicles may be pure electric vehicles, hybrid vehicles, or extended-range vehicles, etc.; spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc.; electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc.; electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools, and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc. The embodiments of the present application do not impose any special restrictions on the above-mentioned electrical devices.

[0063] Below, the embodiments of the present application are described in detail.

[0064] At present, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0065] During the production process of batteries, it is necessary to perform performance testing on battery cells, for example, energizing the battery cells and testing parameters such as current and voltage.

[0066] When performing battery cell testing, the battery cell needs to be moved to a testing station, then fixed, and the positive and negative pole tabs of the battery cell need to be connected to a testing circuit respectively to connect the battery cell to the testing circuit to form a testing loop.

[0067] This detection method wastes a lot of time on fixing and wiring the battery cells during the detection, which in turn affects the overall performance detection efficiency. In addition, due to the large number of operation steps, if mechanical operation is adopted, multiple devices are required to implement it together, which is costly. Therefore, the loading and wiring of the battery cells can only be performed manually, and it is difficult to realize the automation of the battery cell detection and loading.

[0068] Therefore, how to improve the efficiency of battery cell performance testing is an important issue in battery production and processing.

[0069] In view of this, the present application provides a technical solution, which solves the above technical problems by providing a battery testing tool, placing the battery cell on the tool in advance before testing. When testing, it is only necessary to connect the conductive components on the tool to the detection circuit, and there is no need to fix the battery cell and connect the positive and negative pole tabs to the detection circuit respectively.

[0070] The following is combined with Figure 1-3 The structure of the battery testing tool provided in the embodiment of the present application is described.

[0071] Combined with Figure 1 As shown, an embodiment of the present application provides a battery testing tool 100, including a first carrier 10 and a conductive component 20, the first carrier 10 is used to carry a battery cell 200, the battery cell 200 includes a first pole ear portion 210 and a second pole ear portion 220; the conductive component 20 is installed on the first carrier 10, and the conductive component 20 is used to be respectively connected to the first pole ear portion 210 and the second pole ear portion 220 when the battery cell 200 is fixed on the first carrier 10, and is used to connect to an external detection circuit.

[0072] The first carrier 10 is used to place the battery cell 200 . The first carrier 10 may be a plate-shaped member as shown in the figure, and may be in a rectangular, elliptical, polygonal or other shape, which will not be listed one by one in this embodiment.

[0073] The first carrier 10 may be made of insulating materials such as plastic to reduce the risk of short circuits among the detection circuit, the conductive component 20 and the battery cell 200 after the detection loop is formed.

[0074] The battery cell 200 may be a soft-pack battery cell, or the electrode assembly may be a laminated battery cell. One of the first pole lug 210 and the second pole lug 220 is a positive pole lug of the battery cell 200 , and the other is a negative pole lug.

[0075] The conductive component 20 is installed on the first carrier 10, and the installation method can be any mechanical connection method such as bonding, plugging, bolting, etc. The main function of the conductive component 20 is to conductively connect the first pole ear portion 210 and the second pole ear portion 220, and to be used for conductive connection to the external detection circuit (not shown in the figure).

[0076] The detection circuit may include a conductive line connected to the conductive component 20 and a detector for detecting parameters such as voltage, current and resistance. Since the improvement of this embodiment is only the addition of a battery detection tool 100, this embodiment does not provide too much description and illustration of the detection circuit.

[0077] Before testing, place the battery cell 200 on the first carrier 10, connect the first pole ear 210 and the second pole ear 220 of the battery cell 200 to the conductive component 20, and then place the first carrier 10 with the battery cell 200 on the testing station manually or mechanically (such as an intelligent transporter). It is only necessary to connect the conductive component 20 and the testing circuit to form a testing loop between the battery cell 200 and the testing circuit.

[0078] Compared with the related art which requires first placing the battery cell 200 at the inspection station and respectively connecting the first pole ear portion 210 and the second pole ear portion 220 to the external inspection circuit, the battery inspection tool 100 provided in this embodiment can pre-fix and wire the battery cell 200, thereby saving inspection time and improving inspection efficiency to a certain extent.

[0079] In addition, since the conductive component 20 and the detection circuit only need to be connected after the first carrier 10 and the battery cell 200 are in place, the connection of the detection circuit can be directly achieved through mechanical equipment such as a robotic arm, thereby automating the detection preparation work and further improving the detection efficiency.

[0080] In some examples, optionally, the conductive component 20 includes a first conductive member 21, a first pole ear connector 22 and a second pole ear connector 23, the first conductive member 21 is mounted on the first carrier 10 and is used to connect the detection circuit; the first pole ear connector 22 is conductively connected to the first conductive member 21 and is used to connect the first pole ear portion 210; the second pole ear connector 23 is conductively connected to the first conductive member 21 and is used to connect the second pole ear portion 220.

[0081] The first conductive member 21 may be a workpiece directly made of a conductive material such as metal, or may include a first circuit board 211 on which a plurality of conductive sheets 212 are provided, and the plurality of conductive sheets 212 are respectively connected to the first tab connector 22, the second tab connector 23 and an external detection circuit.

[0082] The first pole lug connector 22 is used to connect and preliminarily fix the first pole lug portion 210. The first pole lug connector 22 needs to be conductively connected to the first conductive member 21 and the first pole lug portion 210. Therefore, the first pole lug connector 22 can be made of conductive materials such as metal, or the parts of the first pole lug connector 22 that are respectively connected to the first conductive member 21 and the first pole lug portion 210 are made of conductive materials.

[0083] The connection method between the first pole lug connector 22 and the first pole lug portion 210 can be a mechanical connection method such as plug-in, snap-on, clamping, etc., as long as the first pole lug connector 22 and the first pole lug portion 210 can remain relatively fixed after connection. Therefore, the connection relationship between the two is not listed one by one in this embodiment.

[0084] Similarly, the second pole lug connector 23 is used to connect and preliminarily fix the second pole lug portion 220. The second pole lug connector 23 needs to be conductively connected to the first conductive member 21 and the second pole lug portion 220. The second pole lug connector 23 can also be made of conductive materials such as metal, or the second pole lug connector 23 can be at least partially made of conductive materials.

[0085] The connection method between the second tab connector 23 and the second tab portion 220 may also be the above-mentioned mechanical connection method such as plug-in, snap-on, clamping, etc. In some embodiments, the structure and material of the second tab connector 23 and the first tab connector 22 may be the same or similar.

[0086] The conductive component 20 is designed to include a first conductive member 21, a first pole lug connector 22 and a second pole lug connector 23. The first conductive member 21 is used to connect the first pole lug connector 22, the second pole lug connector 23 and the detection circuit. The connection and fixation of the battery cell 200 are completed by connecting the first pole lug connector 22 with the first pole lug portion 210 and connecting the second pole lug connector 23 with the second pole lug portion 220.

[0087] In some examples, optionally, the first carrier 10 includes a first end 11 and a second end 12 opposite to each other, and the first conductive member 21 is mounted on the first end 11 .

[0088] The "end" in the first end 11 and the second end 12 should be understood in a broad sense, and may refer to the end of the first carrier 10, which has a certain structural size and area along the length direction of the first carrier 10 (the second direction Y in the figure), or may refer to the end face of the first carrier 10 along its length direction.

[0089] In some embodiments, the first end 11 is an end portion of the first carrier 10 , and therefore, the first end 11 has a certain structural size and area to facilitate the installation of the first conductive member 21 of this embodiment.

[0090] When loading, the first end 11 of the first carrier 10 is arranged close to the connection structure of the detection circuit, so that the first conductive member 21 of this embodiment can be close to the connection structure of the detection circuit, thereby facilitating the first conductive member 21 to connect to the external detection circuit.

[0091] In some examples, optionally, the first conductive member 21 has a connecting end 213 extending from the first end 11 in a direction away from the second end 12 , and the connecting end 213 is used to connect to the detection circuit.

[0092] When the first conductive member 21 includes a circuit board and a conductive sheet 212 located on the circuit board, the portion having the conductive sheet 212 is the aforementioned connecting end 213 .

[0093] A portion of the circuit board is mounted on the first carrier 10 , and the connection end 213 is extended out of the first carrier 10 . This structure enables the connection end 213 to be more conveniently connected to the detection circuit.

[0094] In some examples, optionally, the first tab connector 22 and the second tab connector 23 are both adjacent to and connected to the first conductive member 21; or, the first tab connector 22 is adjacent to and connected to the first conductive member 21, and the second tab connector 23 is located at the second end 12 and conductively connected to the first conductive member 21.

[0095] The above technical solution includes two ways of arranging the first tab connector 22 and the second tab connector 23. The first way is as follows: Figure 1 The first tab connector 22 and the second tab connector 23 shown in the figure are both located in a region close to the first end 11 of the first carrier 10 . At this time, the first tab connector 22 and the second tab connector 23 are both directly connected to the first conductive member 21 .

[0096] The first arrangement can match the situation where the first pole lug portion 210 and the second pole lug portion 220 of the battery cell 200 are on the same side of the battery cell 200 .

[0097] The second is Figure 2 The first tab connector 22 shown in FIG. 1 is located near the first end 11 , and the second tab connector 23 is located at the second end 12 of the first carrier 10 . At this time, the first tab connector 22 and the second tab connector 23 form a space for accommodating the battery cell 200 .

[0098] In this structure, the first tab connector 22 and the second tab connector 23 can be connected via a third conductive member 24 in the middle. The third conductive member 24 can include a second conductive circuit board or a workpiece made of a conductive material.

[0099] The second arrangement can match the situation where the first pole lug portion 210 and the second pole lug portion 220 of the battery cell 200 are on opposite sides of the battery cell 200 .

[0100] Combined with the attachment again Figure 1 and 2As shown, in some examples, optionally, the battery inspection tool 100 also includes a first limit assembly 30, which is installed on the first carrier 10 and is used to limit the displacement of the battery cell 200 along the first direction X, and the first direction X intersects with the arrangement direction from the first end 11 to the second end 12.

[0101] In some embodiments, the first direction X may be perpendicular to the arrangement direction from the first end 11 to the second end 12 . In this case, the first direction X may be the width direction of the first carrier 10 .

[0102] The "limit" in the first limiting component 30 can be understood as limiting the displacement of the battery cell 200. After the battery cell 200 is placed on the first carrier 10, the first limiting component 30 can be used to limit the battery cell 200, thereby limiting the displacement of the battery cell 200 in two opposite sub-directions of the first direction X.

[0103] By further fixing the battery cell 200 using the first limiting assembly 30 , the stability of the battery cell 200 on the first carrier 10 can be improved to a certain extent, and the possibility of the battery cell 200 being separated from the first carrier 10 during movement or transportation can be reduced.

[0104] In some examples, optionally, the first limiting assembly 30 includes a first limiting member 31 and a second limiting member 32 arranged at intervals along the first direction X, the first limiting member 31 is used to limit one side of the battery cell 200 along the first direction X, and the second limiting member 32 is used to limit the other side of the battery cell 200 along the first direction X.

[0105] The first limiter 31 and the second limiter 32 may be in the shape of a strip, a rod, a block, etc. The first limiter 31 and the second limiter 32 may be made of insulating materials such as plastic to reduce the risk of short circuit when the battery cell 200 is tested.

[0106] A gap is formed between the first stopper 31 and the second stopper 32 along the first direction X. The size of the gap may be equal to or slightly larger than (eg, larger than 0.1 mm-10 mm) the size of the battery cell 200 in the first direction X.

[0107] After the battery cell 200 is placed between the first limit piece 31 and the second limit piece 32, the first limit piece 31 and the second limit piece 32 respectively abut against the two sides of the battery cell 200 along the first direction X, and limit the battery cell 200. The structure is simple and the battery cell 200 is easy to install between the first limit piece 31 and the second limit piece 32.

[0108] In addition, in some embodiments, the first limit member 31 and the second limit member 32 can be designed to have an adjustable spacing along the first direction X, for example, by installing the first limit member 31 and the second limit member 32 respectively through elastic members, so that the spacing between the first limit member 31 and the second limit member 32 can match battery cells 200 of different specifications.

[0109] In addition, in some embodiments, the first limit member 31 and the second limit member 32 can be hinged to the first carrier 10 at one end close to the first end 11, so that the first limit member 31 and the second limit member 32 can each form an opening larger than the battery cell 200 after rotating outward at one end away from the first end 11, thereby making it easier for the battery cell 200 to enter the gap between the two.

[0110] In some examples, optionally, the first pole tab connector 22 is a clamping member for clamping the first pole tab portion 210 , and / or the second pole tab connector 23 is a clamping member for clamping the second pole tab portion 220 .

[0111] The above technical solution includes three implementation methods. One is that the first pole lug connector 22 is a clamping member, and the first pole lug connector 22 can directly clamp the first pole lug portion 210. The second pole lug connector 23 is not a clamping member, and the second pole lug connector 23 adopts other mechanical connection methods to connect with the second pole lug portion 220.

[0112] Another is that the first tab connector 22 is a non-clamping member, the first tab connector 22 is connected to the first tab portion 210 by other mechanical connection methods, and the second tab connector 23 is a clamping member, and the second tab connector 23 can directly clamp the second tab portion 220. Another is that both the first tab connector 22 and the second tab connector 23 are clamping members.

[0113] The clamping member refers to a member having two clamping jaws, one of which is connected to the first conductive member 21 and is connected to an elastic member between the two clamping jaws, and at least one of the two clamping jaws can rotate so that the two clamping jaws form a space for clamping the pole ear.

[0114] The clamping piece is used to clamp the tab of the battery cell 200 , so as to facilitate the connection between the battery cell 200 and the conductive component 20 .

[0115] In some examples, optionally, a first heat dissipation through hole 13 is formed on a portion of the first carrier 10 for supporting the battery cell 200 .

[0116] There are multiple first heat dissipation through holes 13 , and the first heat dissipation through holes 13 penetrate through two surfaces of the first carrier 10 along the third direction Z in the figure.

[0117] The reason for setting the first heat dissipation through hole 13 is that after the battery cell 200 is connected to the detection circuit, the battery cell 200 is powered on and generates heat. When the heat of the battery cell 200 cannot be dissipated, it will not only easily affect the performance of the battery cell 200, but also have an adverse effect on the accuracy of the detection result.

[0118] Therefore, in this embodiment, a first heat dissipation hole 13 is provided on the first carrier 10. When the battery cell 200 is tested, part of the heat of the battery cell 200 can flow outward through the first heat dissipation hole 13, which is beneficial to the heat dissipation of the battery cell 200 and reduces the possibility that the temperature of the battery cell 200 is too high and affects the test results.

[0119] Combined with the attachment again Figure 1 and attached Figure 2 As shown, in some examples, optionally, the battery testing tool 100 also includes a second carrier 40 and a second conductive member 50, the first carrier 10 is installed on the second carrier 40, the second conductive member 50 is installed on the second carrier 40, the second conductive member 50 is arranged facing the first conductive member 21 and connected to the first conductive member 21, the second conductive member 50 is used to connect the detection circuit, and the first conductive member 21 is connected to the detection circuit through the second conductive member 50.

[0120] The material and shape of the second carrier 40 can be the same as or similar to the aforementioned first carrier 10. For example, the second carrier 40 is also made of insulating materials such as plastic. However, the surface area of ​​the second carrier 40 used to support the first carrier 10 needs to be larger than the area of ​​any surface of the first carrier 10.

[0121] By placing the first carrier 10 and the structure thereon via the second carrier 40 , the stability of the first carrier 10 at the inspection station can be improved.

[0122] And combined with Figure 3 As shown, in some embodiments, a second carrier 40 has multiple first carriers 10, and the multiple first carriers 10 can be arranged at intervals along the first direction X. Each first carrier 10 is provided with a conductive component 20 and a battery cell 200. Therefore, by moving a second carrier 40, multiple first carriers 10 and battery cells 200 can be driven to move, so that multiple battery cells 200 can be moved to the inspection station for inspection at the same time, further improving the efficiency of loading the battery cells 200, thereby improving the inspection efficiency.

[0123] The second conductive member 50 is used to connect with the first conductive member 21 to achieve the connection between the first conductive member 21 and the detection circuit. At this time, the wiring of the detection circuit can be directly connected to the second conductive member 50, and the first conductive member 21 and the detection circuit are switched through the second conductive member 50.

[0124] In some examples, optionally, the first conductive member 21 and the second conductive member 50 are detachably connected.

[0125] The detachable connection means that the first conductive member 21 and the second conductive member 50 can be removed after being connected. The detachable connection not only facilitates the connection of the first conductive member 21 and the second conductive member 50 before detection, but also facilitates the removal of the first conductive member 21 and the second conductive member 50 after detection.

[0126] After the first conductive member 21 and the second conductive member 50 are removed, the first carrier 10 having a different arrangement of the first tab connector 22 and the second tab connector 23 can be replaced, so that the second carrier 40 can selectively install the first carrier 10 with the battery cell 200 on the same side of the tab, or install the first carrier 10 with the battery cell 200 on the opposite side of the tab.

[0127] There are many ways of detachable connection, such as plug-in connection, snap-on connection, threaded connection, etc., which are not listed one by one in this embodiment.

[0128] In some examples, optionally, the first conductive member 21 and the second conductive member 50 of this embodiment are plugged into each other.

[0129] There are two ways to connect the first conductive member 21 and the second conductive member 50. One is as follows: Figure 1 and 2 The first conductive member 21 shown in the figure is provided with a plug (such as the above-mentioned connecting end 213), and the second conductive member 50 is provided with a slot or a socket (not shown in the figure), and the two can be conductively connected after being plugged in.

[0130] Another embodiment is that the first conductive member 21 is provided with a slot or a socket, and the second conductive member 50 is provided with a plug (this embodiment is not shown in the figure).

[0131] When the first conductive member 21 and the second conductive member 50 are connected by plugging, after the first carrier 10 is placed on the second carrier 40, it is only necessary to move the first carrier 10 and the first conductive member 21 thereon along the second direction Y in the figure to achieve the plug-in connection between the first conductive member 21 and the second conductive member 50. This is easy to operate, improves the connection efficiency between the first conductive member 21 and the second conductive member 50, and is more conducive to mechanical equipment such as a robot to perform this step, thereby making it more convenient to realize the automation of detection and feeding.

[0132] In some examples, optionally, the battery testing tool 100 further includes a second limit assembly 60 , which is used to limit the displacement of the first carrier 10 along the first direction X, where the first direction X intersects with the arrangement direction of the first conductive member 21 and the second conductive member 50 .

[0133] The "limit" in the second limiting component 60 can be understood as limiting the displacement of the first carrier 10 along the first direction X. After the battery cell 200 is placed on the first carrier 10, the displacement of the first carrier 10 in two opposite sub-directions of the first direction X can be limited by the limiting cooperation between the second limiting component 60 and the first carrier 10.

[0134] By further fixing the first carrier 10 using the second limiting assembly 60 , the stability of the first carrier 10 on the second carrier 40 can be improved to a certain extent, and the possibility of the first carrier 10 being separated from the second carrier 40 during movement or transportation can be reduced.

[0135] In some examples, optionally, the second limiting assembly 60 includes a third limiting member 61 and a fourth limiting member 62 arranged at intervals along the first direction X, the third limiting member 61 cooperates with a side limit of the first carrier 10 along the first direction X, and the fourth limiting member 62 cooperates with another side limit of the first carrier 10 along the first direction X.

[0136] Similar in shape and structure to the aforementioned first limiter 31 and second limiter 32, the third limiter 61 and fourth limiter 62 of this embodiment may be strip-shaped, rod-shaped, block-shaped, etc., and the third limiter 61 and fourth limiter 62 may be made of insulating materials such as plastic.

[0137] A gap is also formed between the third limiting member 61 and the fourth limiting member 62 along the first direction X. The size of the gap may be equal to or slightly larger than (for example, larger than 0.1 mm-10 mm) the size of the first supporting member 10 in the first direction X.

[0138] After the first carrier 10 is placed between the third limiting member 61 and the fourth limiting member 62, the third limiting member 61 and the fourth limiting member 62 respectively abut against the two sides of the first carrier 10 along the first direction X, and limit the first carrier 10. The structure is simple and the first carrier 10 is easy to install between the third limiting member 61 and the fourth limiting member 62.

[0139] In some examples, optionally, the first carrier 10 is slidably connected to the third limit member 61 along one side of the first direction X, and / or the first carrier 10 is slidably connected to the fourth limit member 62 along the other side of the first direction X.

[0140] There are many ways to slide the first supporting member 10 with the third limiting member 61 and the fourth limiting member 62. For example, the third limiting member 61 and the fourth limiting member 62 are provided with sliding grooves (not shown in the figure), and the two sides of the first supporting member 10 can slide in the sliding grooves respectively.

[0141] Alternatively, sliding grooves are provided on both sides of the first bearing member 10 , and the two sliding grooves can be slidably connected to the third limiting member 61 and the fourth limiting member 62 respectively.

[0142] The first carrier 10 is designed to be slidably connected to the third limit member 61 and the fourth limit member 62 respectively, which not only facilitates the installation of the first carrier 10 on the second carrier 40, but also facilitates the movement of the first carrier 10 to drive the docking of the first conductive member 21 and the second conductive member 50.

[0143] In addition, an elastic limiter (not shown in the figure) may be provided in the slide groove. When the first carrier 10 slides to a certain position relative to the third limiter 61 and the fourth limiter 62, the elastic limiter is compressed, thereby applying a certain pressure to the first carrier 10 to limit the continued sliding of the first carrier 10. A certain external force is required to release the restriction of the elastic limiter on the first carrier 10. In this way, the installation stability of the first carrier 10 installed on the second carrier 40 can be further improved.

[0144] In some examples, optionally, a portion of the second carrier 40 that supports the first carrier 10 is provided with a second heat dissipation through hole 41 .

[0145] There may be a plurality of second heat dissipation through holes 41 , and the second heat dissipation through holes 41 penetrate through two surfaces of the second carrier 40 along the third direction Z.

[0146] The second carrier 40 is designed to have a second heat dissipation through hole 41 to improve the heat dissipation performance of the tooling and reduce the possibility of the battery cell 200 being overheated during testing.

[0147] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below.

[0148] Please refer to the attached Figure 1-3As shown, the embodiment of the present application provides a battery detection tool 100, including a first carrier 10 and a conductive component 20. The first carrier 10 is used to carry a battery cell 200. The battery cell 200 includes a first pole ear portion 210 and a second pole ear portion 220. The conductive component 20 is installed on the first carrier 10. The conductive component 20 is used to connect with the first pole ear portion 210 and the second pole ear portion 220 respectively when the battery cell 200 is fixed on the first carrier 10, and is used to connect with an external detection circuit. The conductive component 20 includes a first conductive member 21, a first pole ear connector 22, and a second pole ear connector 23. The first conductive member 21 is installed on the first carrier 10 and is used to connect with the detection circuit; the first pole ear connector 22 is conductively connected to the first conductive member 21 and is used to connect with the first pole ear portion 210; the second pole ear connector 23 is conductively connected to the first conductive member 21 and is used to connect with the second pole ear portion 220. The first carrier 10 includes an opposite first end 11 and a second end 12, and the first conductive member 21 is mounted on the first end 11. The first conductive member 21 has a connecting end 213 extending from the first end 11 in a direction away from the second end 12, and the connecting end 213 is used to connect the detection circuit. The first tab connector 22 and the second tab connector 23 are both adjacent to and connected to the first conductive member 21; or, the first tab connector 22 is adjacent to and connected to the first conductive member 21, and the second tab connector 23 is located at the second end 12 and is conductively connected to the first conductive member 21. The battery detection fixture 100 also includes a first limit assembly 30, which is mounted on the first carrier 10 and is used to limit the displacement of the battery cell 200 along the first direction X, and the first direction X intersects with the arrangement direction from the first end 11 to the second end 12. The first limiting assembly 30 includes a first limiting member 31 and a second limiting member 32 arranged at intervals along the first direction X. The first limiting member 31 is used to limit one side of the battery cell 200 along the first direction X, and the second limiting member 32 is used to limit the other side of the battery cell 200 along the first direction X. The first pole ear connector 22 is a clamping member for clamping the first pole ear portion 210, and / or the second pole ear connector 23 is a clamping member for clamping the second pole ear portion 220. The first heat dissipation through hole 13 is provided on the portion of the first carrier 10 for supporting the battery cell 200. The battery detection fixture 100 also includes a second carrier 40 and a second conductive member 50. The first carrier 10 is mounted on the second carrier 40, and the second conductive member 50 is mounted on the second carrier 40. The second conductive member 50 is arranged facing the first conductive member 21 and connected to the first conductive member 21. The second conductive member 50 is used to connect the detection circuit, and the first conductive member 21 is connected to the detection circuit through the second conductive member 50. The first conductive member 21 and the second conductive member 50 are detachably connected. The first conductive member 21 and the second conductive member 50 are plugged into each other.The battery inspection tool 100 also includes a second limiter assembly 60, which is used to limit the displacement of the first carrier 10 along the first direction X, and the first direction X intersects with the arrangement direction of the first conductive member 21 and the second conductive member 50. The second limiter assembly 60 includes a third limiter 61 and a fourth limiter 62 arranged at intervals along the first direction X, the third limiter 61 is limitedly matched with one side of the first carrier 10 along the first direction X, and the fourth limiter 62 is limitedly matched with the other side of the first carrier 10 along the first direction X. The first carrier 10 is slidably connected to the third limiter 61 on one side of the first direction X, and / or the first carrier 10 is slidably connected to the fourth limiter 62 on the other side of the first direction X. The portion of the second carrier 40 that supports the first carrier 10 is provided with a second heat dissipation through hole 41.

[0149] Based on the above-mentioned battery testing tool 100, an embodiment of the present application provides a battery production system, including a testing circuit (not shown in the figure) and a battery testing tool 100 as any one of the above-mentioned technical solutions.

[0150] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0151] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein, but these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery testing tool, characterized in that: include: A first carrier, used for carrying a battery cell, wherein the battery cell comprises a first pole ear portion and a second pole ear portion; A conductive component mounted on the first carrier, the conductive component is used to be connected to the first pole ear portion and the second pole ear portion respectively when the battery cell is fixed on the first carrier, and is used to be connected to an external detection circuit; as well as A second bearing member, wherein the first bearing member is mounted on the second bearing member.

2. The battery testing tool according to claim 1, characterized in that: The conductive component comprises: A first conductive member, mounted on the first carrier and used to connect the detection circuit; a first pole lug connector, conductively connected to the first conductive member and used to connect the first pole lug portion; and The second pole lug connector is conductively connected to the first conductive member and is used to connect the second pole lug portion.

3. The battery testing tool according to claim 2, characterized in that: The first bearing member includes a first end and a second end that are opposite to each other, and the first conductive member is mounted on the first end.

4. The battery testing tool according to claim 3, characterized in that: The first conductive member has a connecting end extending from the first end in a direction away from the second end, and the connecting end is used for connecting to the detection circuit.

5. The battery testing tool according to claim 3, characterized in that: The first tab connector and the second tab connector are both adjacent to and connected to the first conductive member; Alternatively, the first tab connector is adjacent to and connected to the first conductive member, and the second tab connector is located at the second end and conductively connected to the first conductive member.

6. The battery testing tool according to claim 3, characterized in that: The battery testing tool further includes a first limiting assembly, which is mounted on the first bearing member and is used to limit the displacement of the battery cell along a first direction, wherein the first direction intersects with the arrangement direction from the first end to the second end.

7. The battery testing tool according to claim 6, characterized in that: The first limiting assembly includes a first limiting member and a second limiting member arranged at intervals along the first direction, the first limiting member is used to limit one side of the battery cell along the first direction, and the second limiting member is used to limit the other side of the battery cell along the first direction.

8. The battery testing tool according to claim 2, characterized in that: The first pole tab connector is a clamping member used for clamping the first pole tab portion, and / or the second pole tab connector is a clamping member used for clamping the second pole tab portion.

9. The battery testing tool according to any one of claims 1 to 8, characterized in that: A first heat dissipation through hole is formed on a portion of the first carrier used for supporting the battery cell.

10. The battery testing tool according to any one of claims 2 to 8, characterized in that: The battery testing tool also includes: The second conductive member is installed on the second supporting member. The second conductive member is arranged facing the first conductive member and connected to the first conductive member. The second conductive member is used to connect to the detection circuit. The first conductive member is connected to the detection circuit through the second conductive member.

11. The battery testing tool according to claim 10, characterized in that: The first conductive member and the second conductive member are detachably connected.

12. The battery testing tool according to claim 11, characterized in that: The first conductive member and the second conductive member are plugged into each other.

13. The battery testing tool according to claim 10, characterized in that: The battery testing tool further includes a second limiting assembly, which is used to limit the displacement of the first bearing member along a first direction, where the first direction intersects with the arrangement direction of the first conductive member and the second conductive member.

14. The battery testing tool according to claim 13, characterized in that: The second limiting assembly includes a third limiting member and a fourth limiting member arranged at intervals along the first direction, the third limiting member cooperates with a side limit of the first bearing member along the first direction, and the fourth limiting member cooperates with another side limit of the first bearing member along the first direction.

15. The battery testing tool according to claim 14, characterized in that: One side of the first bearing member along the first direction is slidably connected to the third limiting member; And / or, the first bearing member is slidably connected to the fourth limiting member along the other side of the first direction.

16. The battery testing tool according to claim 10, characterized in that: A second heat dissipation through hole is provided on a portion of the second carrier that supports the first carrier.

17. A battery detection system, characterized in that: It comprises a detection circuit and a battery detection tool as described in any one of claims 1-16.

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