Battery circuit board positioning device, crimping device and battery production system

Abstract

The utility model relates to a battery circuit board positioning device, a crimping device and a battery production system. The battery circuit board positioning device comprises a positioning plate main body, a first positioning structure and a second positioning structure, the positioning plate main body is provided with a first bearing surface for bearing a bending part, and the first positioning structure and the second positioning structure are arranged on the positioning plate main body; the first positioning structure is used for abutting against the side, in the first direction, of the bent part located on the first bearing face, and the second positioning structure is used for abutting against the side, in the second direction, of the bent part located on the first bearing face. The minimum distance between the first positioning structure and the edge of the side, in the third direction, of the positioning plate body is smaller than the size of the bent part in the third direction. The first positioning structure and the second positioning structure are used for abutting and positioning the bending part in the two directions with the included angle, the bending part is accurately positioned on the first bearing surface, and the bending part can partially extend out of the positioning plate main body, so that the terminal can be conveniently crimped to the extending bending part.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery circuit board positioning device, a crimping device and a battery production system. Background Art

[0002] With the continuous development of the new energy industry, battery devices have been used more and more widely. In battery devices, the collection of voltage, temperature and other signals of battery cells plays a key role in the normal operation of battery devices. In related technologies, the battery circuit board is connected to an external device through a connector to collect voltage and temperature signals of the battery cells through the battery circuit board. Among them, a crimping device is generally used to crimp the terminals of the connector to the battery circuit board, thereby connecting the connector to the battery circuit board.

[0003] However, during the crimping process, the battery circuit board is prone to positional displacement, making it difficult to ensure the accuracy of the relative position between the terminal and the battery circuit board. Utility Model Content

[0004] In view of the above problems, the present application provides a battery circuit board positioning device, a crimping device and a battery production system, which can accurately position the battery circuit board and ensure the accuracy of the connection position between the terminal and the battery circuit board.

[0005] In a first aspect, the present application provides a battery circuit board positioning device, the battery circuit board comprising a main body and a bending portion connected to the main body, the battery circuit board positioning device comprising:

[0006] The positioning plate body has a first bearing surface for bearing the bending portion;

[0007] A first positioning structure, disposed on the positioning plate body, the first positioning structure being configured to abut against one side of the bent portion located on the first bearing surface along the first direction;

[0008] A second positioning structure, disposed on the positioning plate body, the second positioning structure being configured to abut against one side of the bent portion on the first bearing surface along the second direction;

[0009] Wherein, the minimum distance L1 between the first positioning structure and the edge of one side of the positioning plate body along the third direction is smaller than the dimension L2 of the bending portion along the third direction;

[0010] The first direction and the second direction are arranged at an angle, and the third direction is opposite to the first direction.

[0011] The battery circuit board positioning device provided in the embodiment of the present application is provided with a first positioning structure and a second positioning structure on the positioning plate body. The first positioning structure is used to abut and position the bending portion on the first bearing surface along one side of the first direction, and the second positioning structure is used to abut and position the bending portion on the first bearing surface along one side of the second direction. Since the first direction and the second direction are arranged at an angle, the bending portion is accurately positioned on the first bearing surface of the positioning plate body through the cooperation of the first positioning structure and the second positioning structure, so as to ensure the accuracy of the relative position between the battery circuit board and the terminal during subsequent crimping. Furthermore, by setting the minimum distance L1 of the first positioning structure from the edge of one side of the positioning plate body along the third direction to be smaller than the dimension L2 of the bending portion along the third direction, the bending portion can be partially extended to the outside of the positioning plate body after being positioned on the first bearing surface, so as to facilitate the crimping device to crimp the terminal to the bending portion extending outside the positioning plate body.

[0012] In some embodiments, the positioning plate body further has a second bearing surface for bearing the main body portion;

[0013] A groove is provided on one side of the positioning plate body provided with the second bearing surface, the groove wall of the groove in the first direction constitutes a first positioning structure, and the groove wall of the groove in the second direction constitutes a second positioning structure;

[0014] The groove bottom wall of the groove forms a first bearing surface.

[0015] The battery circuit board positioning device provided in the embodiment of the present application is provided with a groove on the positioning plate body, the groove wall of the groove constructs the aforementioned first positioning structure and the second positioning structure, and the groove bottom of the groove constructs the first bearing surface for bearing the bending part. The area outside the groove on the positioning plate body constructs the second bearing surface for bearing the main body.

[0016] In some embodiments, along the third direction, the groove extends to a side edge of the positioning plate body along the third direction.

[0017] The battery circuit board positioning device provided in the embodiment of the present application can conveniently extend to the outside of the positioning plate body when the bending portion is positioned on the first bearing surface, and will not be restricted by the groove wall. At the same time, such a setting can improve the compatibility of the battery circuit board positioning device, and the bending portion can be carried on the first bearing surface as long as the dimension L2 along the third direction is greater than the minimum distance L1 between the first positioning structure and the edge of one side of the positioning plate body along the third direction.

[0018] In some embodiments, along the fourth direction, the groove extends to a side edge of the positioning plate body along the fourth direction;

[0019] The fourth direction is opposite to the second direction.

[0020] The battery circuit board positioning device provided in the embodiment of the present application can conveniently extend the bending portion to the outside of the positioning plate body when the bending portion is positioned on the first bearing surface, without being restricted by the groove wall.

[0021] In some embodiments, the positioning plate body includes a connecting portion and a positioning portion connected to each other;

[0022] The connecting portion is located at one side of the positioning portion along the first direction, the groove is arranged on the positioning portion, and the second bearing surface is arranged on the connecting portion.

[0023] The battery circuit board positioning device provided in the embodiment of the present application supports the main body of the battery circuit board by arranging a connecting portion on one side of the positioning portion along the first direction and arranging a second bearing surface on the connecting portion, so as to ensure that all parts of the battery circuit board are protected after being bent.

[0024] In some embodiments, the battery circuit board positioning device further includes at least one pre-positioning member;

[0025] The pre-positioning member is arranged on the first bearing surface, and the bending portion is provided with a matching portion matching with the pre-positioning member, so that the battery circuit board can rotate around the pre-positioning member.

[0026] In the battery circuit board positioning device provided in the embodiment of the present application, when the battery circuit board is placed on the first bearing surface, the bending portion is first assembled with the pre-positioning member, and then the battery circuit board is rotated around the pre-positioning member so that the bending portion abuts against the first positioning structure and the second positioning structure. By providing the pre-positioning member, it is more convenient to adjust the bending portion to the precise position of abutting and positioning with the first positioning structure and the second positioning structure.

[0027] In some embodiments, the pre-positioning member includes a positioning post;

[0028] The matching portion is configured as a positioning hole adapted to the positioning column, and the positioning column can be inserted into the positioning hole.

[0029] The battery circuit board positioning device provided in the embodiment of the present application realizes the pre-positioning of the bent portion by plugging and matching the positioning column with the positioning hole.

[0030] In some embodiments, the battery circuit board positioning device further comprises:

[0031] The third positioning structure is disposed on the first bearing surface, and the third positioning structure is configured to fix the bending portion on the first bearing surface.

[0032] The battery circuit board positioning device provided in the embodiment of the present application, by setting a third positioning structure on the first bearing surface, fixes the bent portion after precise positioning by the first positioning structure and the second positioning structure on the first bearing surface to prevent the bent portion from moving during transportation or crimping.

[0033] In some embodiments, the third positioning structure includes at least one negative pressure adsorption member;

[0034] The negative pressure adsorption component is arranged on the first bearing surface and is used for vacuum adsorption of the bending portion.

[0035] The battery circuit board positioning device provided in the embodiment of the present application firmly fixes the bent portion on the first bearing surface by vacuum adsorption.

[0036] In some embodiments, the third positioning structure includes a plurality of negative pressure adsorption members;

[0037] A plurality of negative pressure adsorption members are arranged at intervals along the second direction.

[0038] The battery circuit board positioning device provided in the embodiment of the present application has a structure in which the bending portion is extended along the fourth direction. By arranging a plurality of negative pressure adsorption members at intervals along the fourth direction, a more solid adsorption force can be provided to the bending portion.

[0039] In some embodiments, when the battery circuit board is flattened, the main body and the bent portion are arranged along the second direction; a dimension W1 of the battery circuit board along the second direction is greater than or equal to a dimension W2 of the battery circuit board along the first direction.

[0040] The battery circuit board positioning device provided in the embodiment of the present application is particularly suitable for a battery circuit board whose dimension W1 along the second direction is larger than the dimension W2 along the first direction. Since the second positioning structure abuts and positions one side of the bending portion along the second direction, the main body arranged along the second direction with the bending portion is a free end and can extend to the outside of the positioning plate body. Therefore, the battery circuit board can be set with a larger dimension in the second direction.

[0041] In some embodiments, the ratio of the dimension W1 to the dimension W2 ranges from 5 to 100.

[0042] In some embodiments, the ratio of the dimension W1 to the dimension W2 ranges from 18 to 60.

[0043] In a second aspect, the present application further provides a crimping device, including a conveying device, a pressing head device, and a battery circuit board positioning device as in any of the above embodiments;

[0044] The battery circuit board positioning device is arranged on the conveying device, and the conveying device can drive the battery circuit board positioning device to reciprocate along the third direction to convey it to the pressing head device;

[0045] The crimping head device is used to crimp the terminal of the connector to the bent portion of the battery circuit board.

[0046] In a third aspect, the present application also provides a battery production system, including the crimping device of the above embodiment.

[0047] 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0049] Figure 1 A schematic diagram of the structure of a vehicle according to some embodiments of the present application;

[0050] Figure 2 A schematic diagram of the structure of a battery device according to some embodiments of the present application;

[0051] Figure 3 This is a schematic diagram of the structure of a battery circuit board in some embodiments of the present application;

[0052] Figure 4 This is a schematic structural diagram of a battery circuit board positioning device according to some embodiments of the present application;

[0053] Figure 5 Schematic diagram of the positioning state of the battery circuit board on the battery circuit board positioning device in some embodiments of the present application Figure 1 ;

[0054] Figure 6 Schematic diagram of the positioning state of the battery circuit board on the battery circuit board positioning device in some embodiments of the present application Figure 2 .

[0055] The reference numerals in the specific implementation manner are as follows:

[0056] 1000. Vehicles;

[0057] 100, battery device; 10, housing; 11, first part; 12, second part; 20, battery cell; 200, controller; 300, motor;

[0058] 400, battery circuit board; 410, main body; 420, bending part; 421, positioning hole;

[0059] 1. Positioning plate body; 101. Connecting portion; 1011. Connecting hole; 1012. Second bearing surface; 102. Positioning portion; 1021. First bearing surface; 2. First positioning structure; 3. Second positioning structure; 4. Pre-positioning member; 5. Third positioning structure; 51. Negative pressure adsorption member; 6. Fastener. DETAILED DESCRIPTION

[0060] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0061] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0062] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0063] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations 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. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0064] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may 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 article generally indicates that the associated objects before and after are in an "or" relationship.

[0065] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0066] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0067] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0068] At present, from the perspective of market development, 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 aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0069] As a power battery, the battery device includes multiple battery cells. The collection of voltage, temperature and other signals of the battery cells plays a key role in the normal operation of the battery device. Generally, a battery circuit board is used to collect voltage and temperature signals of the battery cells. The battery circuit board is connected to the external device through a connector, and the terminals of the connector are crimped to the battery circuit board through a crimping device. When the traditional crimping device crimps the terminal to the battery circuit board, the position of the battery circuit board is easily offset, and it is difficult to ensure the accuracy of the relative position between the terminal and the battery circuit board.

[0070] Based on the above considerations, the inventor of the present application has designed a battery circuit board positioning device, including a positioning plate body for carrying a battery circuit board, and a first positioning structure and a second positioning structure are arranged on the positioning plate body. The first positioning structure and the second positioning structure are used to abut the two sides of the battery circuit board that extend at an angle, so as to accurately position the battery circuit board on the battery circuit board body, so as to ensure the accuracy of the relative position between the battery circuit board and the terminal during subsequent crimping. And by limiting the distance from the first positioning structure to the edge of the positioning plate body, the part where the battery circuit board is crimped with the terminal can extend to the outside of the positioning plate body, so as to facilitate the crimping operation of the crimping device.

[0071] The embodiment of the present application provides a battery device including the battery circuit board with the connector terminal crimped thereon, and the battery device can be used in, but not limited to, an energy storage device or an electric device, and the energy storage device includes an energy storage container, an energy storage cabinet, etc. The electric device can be, but not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc. Among them, the electric toy can include a fixed or mobile electric toy, for example, a game console, an electric car toy, an electric ship toy, an electric airplane toy, etc., and the spacecraft can include an airplane, a rocket, a space shuttle, a spacecraft, etc.

[0072] In some embodiments, the power-consuming device may be a vehicle. The vehicle may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device is provided inside the vehicle, and the battery device may be provided at the bottom, head or tail of the vehicle. The battery device may be used to power the vehicle, for example, the battery device may be used as an operating power source for the vehicle. The vehicle may also include a controller and a motor, and the controller may be used to control the battery device to power the motor. For example, the battery device may be used for starting, navigating and operating power requirements of the vehicle during driving.

[0073] The battery circuit board positioning device, crimping device and battery production system provided in the embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0074] Please refer to Figure 1 , Figure 1This is a schematic diagram of the structure of a vehicle 1000 of some embodiments of the present application. Taking the vehicle 1000 as an example, the power-consuming device may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device 100 is provided inside the vehicle 1000, and the battery device 100 may be provided at the bottom, head or tail of the vehicle 1000. The battery device 100 may be used to power the vehicle 1000, for example, the battery device 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery device 100 to power the motor 300, for example, for the starting, navigation and working power requirements of the vehicle 1000 during driving.

[0075] In some embodiments, the battery device 100 can not only serve as an operating power source for the vehicle 1000 , but also serve as a driving power source for the vehicle 1000 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000 .

[0076] Please refer to Figure 2 , Figure 2 Schematic diagram of the structure of the battery device 100 according to some embodiments of the present application. In some embodiments, the battery device 100 includes a box body 10 and a battery cell 20 , wherein the battery cell 20 is accommodated in the box body 10 .

[0077] The box 10 is used to provide a storage space for the battery cells, and the box 10 can adopt a variety of structures. In some embodiments, the box 10 may include a first part 11 and a second part 12, and the first part 11 and the second part 12 cover each other, and the first part 11 and the second part 12 jointly define a storage space for accommodating the battery cells. The second part 12 can be a hollow structure with one end open, and the first part 11 can be a plate-like structure, and the first part 11 covers the open side of the second part 12, so that the first part 11 and the second part 12 jointly define a storage space; the first part 11 and the second part 12 can also be hollow structures with one side open, and the open side of the first part 11 covers the open side of the second part 12. Of course, the box 10 formed by the first part 11 and the second part 12 can be in a variety of shapes, such as a cylinder, a cuboid, etc.

[0078] Please refer to Figure 2In the battery device 100, there may be multiple battery cells 20, and the multiple battery cells 20 may be connected in series, in parallel, or in a mixed connection. A mixed connection means that the multiple battery cells 20 are both connected in series and in parallel. The multiple battery cells 20 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells 20 is accommodated in the box 10; of course, the battery device 100 may also be a battery module formed by connecting multiple battery cells 20 in series, in parallel, or in a mixed connection, and then the multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box 10. The battery device 100 may also include other structures, for example, the battery device 100 may also include a busbar component for realizing electrical connection between the multiple battery cells 20.

[0079] See also Figure 3~Figure 6 , Figure 3 This is a schematic diagram of the structure of a battery circuit board 400 according to some embodiments of the present application; Figure 4 This is a schematic structural diagram of a battery circuit board positioning device according to some embodiments of the present application; Figure 5 Schematic diagram of the positioning state of the battery circuit board on the battery circuit board positioning device in some embodiments of the present application Figure 1 ; Figure 6 Schematic diagram of the positioning state of the battery circuit board on the battery circuit board positioning device in some embodiments of the present application Figure 2 .

[0080] like Figure 3 As shown, the battery circuit board 400 includes a main body 410 and a bending portion 420 connected to the main body 410, the bending portion 420 is connected to one side of the main body 410 along the X1 direction, and one end of the bending portion 420 along the Y2 direction is used for crimping with the terminal. The main body 410 is relatively long along the X2 direction and is used to set a plurality of sampling sheets, such as voltage sampling sheets, temperature sampling sheets, etc. Among them, the battery circuit board 400 can be an FPC (Flexible Printed Circuit), that is, a flexible circuit board, which is flexible and can be bent.

[0081] Specifically, when the battery circuit board 400 is flattened, the main body 410 and the bent portion 420 are aligned along the second direction ( Figure 3 The dimension W1 of the battery circuit board 400 along the second direction is greater than or equal to the dimension W2 of the battery circuit board 400 along the first direction.

[0082] Optionally, the ratio of the size W1 to the size W2 ranges from 5 to 100.

[0083] Furthermore, the ratio of the dimension W1 to the dimension W2 is in the range of 18 to 60. The battery circuit board 400 of the embodiment of the present application is configured as a long strip structure, the dimension in the X1 direction is much larger than the dimension in the Y1 direction, and one end of the bending portion 420 along the Y2 direction is used for crimping with the terminal, and during the crimping process, it needs to be transported to the crimping device along the Y2 direction.

[0084] like Figure 4~Figure 6 As shown, an embodiment of the present application provides a battery circuit board positioning device, which includes a positioning plate body 1, a first positioning structure 2 and a second positioning structure 3. The positioning plate body 1 has a first bearing surface 1021 for bearing the bending portion 420. The first positioning structure 2 is disposed on the positioning plate body 1, and the first positioning structure 2 is configured to abut against one side of the bending portion 420 located on the first bearing surface 1021 along the first direction. The second positioning structure 3 is disposed on the positioning plate body 1, and the second positioning structure 3 is configured to abut against one side of the bending portion 420 located on the first bearing surface 1021 along the second direction. Among them, the minimum distance L1 of the first positioning structure 2 from the edge of one side of the positioning plate body 1 along the third direction is less than the dimension L2 of the bending portion 420 along the third direction. The first direction is set at an angle to the second direction, and the third direction is opposite to the first direction. Specifically, the first direction is Figure 5 The Y1 direction shown in the figure, the second direction is Figure 5 The X1 direction is shown in the figure, and the third direction is Figure 5 The Y2 direction shown in .

[0085] The battery circuit board positioning device provided in the embodiment of the present application is provided with a first positioning structure 2 and a second positioning structure 3 on the positioning plate main body 1, and the first positioning structure 2 is used to abut and position the bending portion 420 on the first bearing surface 1021 along one side of the Y1 direction, and the second positioning structure 3 is used to abut and position the bending portion 420 on the first bearing surface 1021 along one side of the X1 direction. Since the Y1 direction and the X1 direction are arranged at an angle, the first positioning structure 2 and the second positioning structure 3 are used to cooperate to accurately position the bending portion 420 on the first bearing surface 1021 of the positioning plate main body to ensure the accuracy of the relative position of the battery circuit board 400 and the terminal during subsequent crimping. Furthermore, by setting the minimum distance L1 between the first positioning structure 2 and the side edge of the positioning plate body 1 along the third direction to be smaller than the dimension L2 of the bending portion 420 along the Y2 direction, the bending portion 420 can partially extend to the outside of the positioning plate body 1 after being positioned on the first bearing surface 1021, so as to facilitate the crimping device to crimp the terminal to the bending portion 420 extending outside the positioning plate body 1.

[0086] Specifically, in the embodiment of the present application, the X1 direction is perpendicular to the Y1 direction to match the right-angled structural form of the two adjacent sides of the bending portion 420. In some other embodiments, the angle between the X1 direction and the Y1 direction can be specifically set according to the specific shape of the battery circuit board 400 to be positioned, and can be flexibly set within a range greater than 0° and less than 180°.

[0087] It should be noted that after the battery circuit board positioning device carries the battery circuit board 400 and positions the battery circuit board 400, it will be moved along the Y2 direction to be transported to the bottom of the pressure head of the crimping device. The size of the battery circuit board 400 along the X2 direction is relatively large, which may affect the transportation to the pressure head. Therefore, when the battery circuit board positioning device carries the battery circuit board 400, since the battery circuit board 400 is flexible, the battery circuit board 400 can be bent, and the bending is performed from the connection between the main body 410 and the bending part 420. After bending, the main body 410 extends along the Y1 direction to support on the positioning plate body 1, which can significantly reduce the size of the battery circuit board 400 in the X2 direction.

[0088] In some embodiments, the positioning plate body 1 further has a second bearing surface 1012 for bearing the main body 410. A groove is provided on one side of the positioning plate body 1 having the second bearing surface 1012, the groove wall of the groove in the first direction constitutes the first positioning structure 2, the groove wall of the groove in the second direction constitutes the second positioning structure 3, and the groove bottom wall of the groove constitutes the first bearing surface 1021.

[0089] By setting a groove on the positioning plate body 1, the groove wall of the groove constructs the aforementioned first positioning structure 2 and second positioning structure 3, and the groove bottom of the groove constructs the first bearing surface 1021 that supports the bending part 420. The area outside the groove on the positioning plate body 1 constructs the second bearing surface 1012 that supports the main body 410.

[0090] Optionally, along the Y2 direction, the groove extends to a side edge of the positioning plate body 1 along the Y2 direction. In other words, the groove is not provided with a groove wall along the Y2 direction, and is an open structure. In this way, when the bending portion 420 is positioned on the first bearing surface 1021, it can be conveniently extended to the outside of the positioning plate body 1 along the Y2 direction without being restricted by the groove wall. At the same time, such a setting can improve the compatibility of the battery circuit board positioning device. As long as the dimension L2 of the bending portion 420 along the Y2 direction is greater than the minimum distance L1 between the first positioning structure 2 and a side edge of the positioning plate body 1 along the Y2 direction, it can be carried on the first bearing surface 1021.

[0091] Further, along the fourth direction, the groove extends to a side edge of the positioning plate body 1 along the fourth direction; wherein the fourth direction is opposite to the second direction. Figure 5In other words, the groove is not provided with a groove wall along the X2 direction, and is an open structure. Thus, when the bending portion 420 is positioned on the first bearing surface 1021, it can be conveniently extended along the X2 direction to the outside of the positioning plate body 1 without being restricted by the groove wall.

[0092] Specifically, the positioning plate body 1 includes a connecting portion 101 and a positioning portion 102 connected to each other; the connecting portion 101 is located on one side of the positioning portion 102 along the Y1 direction, the groove is provided on the positioning portion 102, and the second bearing surface 1012 is provided on the connecting portion 101. By providing the connecting portion 101 on one side of the positioning portion 102 along the Y1 direction and providing the second bearing surface 1012 on the connecting portion 101, the main body 410 of the battery circuit board 400 is supported, so as to ensure that all parts of the battery circuit board 400 after bending are supported and protected.

[0093] In some other embodiments, the first bearing surface 1021 and the second bearing surface 1012 can also be directly constructed on the surface of the positioning plate body 1. In this case, the first bearing surface 1021 and the second bearing surface 1012 can be located on the same plane. The first positioning structure 2 and the second positioning structure 3 are constructed as limit protrusions arranged on the surface of the positioning plate body, and the limit protrusions are used to abut the bending portion 420, so as to achieve the positioning effect. In order to facilitate the fitting of the main body 410 and the second bearing surface 1012, an avoidance notch can be set on the limit protrusion as the first positioning structure 2 to allow the main body 410 to pass through.

[0094] In some embodiments, Figure 4 As shown, the battery circuit board positioning device also includes at least one pre-positioning member 4, which is arranged on the first bearing surface 1021, and the bending portion 420 is provided with a matching portion that matches the pre-positioning member 4, so that the battery circuit board 400 can rotate around the pre-positioning member 4. When the battery circuit board 400 is placed on the first bearing surface 1021, the bending portion 420 is first assembled with the pre-positioning member 4, and then the battery circuit board 400 is rotated around the pre-positioning member 4, so that the bending portion 420 abuts against the first positioning structure 2 and the second positioning structure 3. By providing the pre-positioning member 4, it is more convenient to adjust the bending portion 420 to the precise position of abutting and positioning with the first positioning structure 2 and the second positioning structure 3.

[0095] Specifically, the pre-positioning member 4 includes a positioning column, and the matching portion is configured as a positioning hole 421 adapted to the positioning column, and the positioning column can be plugged into the positioning hole 421. The positioning column can be set as a circular column to facilitate the battery circuit board 400 to rotate around it. The pre-positioning of the bent portion 420 is achieved by plugging and matching the positioning column with the positioning hole 421.

[0096] In some embodiments, Figure 4As shown, the battery circuit board positioning device further includes a third positioning structure 5, which is disposed on the first bearing surface 1021 and is configured to fix the bent portion 420 on the first bearing surface 1021. By arranging the third positioning structure 5 on the first bearing surface 1021, the bent portion 420 precisely positioned by the first positioning structure 2 and the second positioning structure 3 is fixed on the first bearing surface 1021 to prevent the bent portion 420 from moving during transportation or crimping.

[0097] In one embodiment, the third positioning structure 5 includes at least one negative pressure adsorption component 51, which is disposed on the first supporting surface 1021 and is used to vacuum adsorb the bending portion 420 so as to firmly fix the bending portion 420 on the first supporting surface 1021 by vacuum adsorption.

[0098] Specifically, the third positioning structure 5 includes a plurality of negative pressure adsorption members 51, which are arranged at intervals along the X2 direction. Since the bending portion 420 is a structure extending along the X2 direction, by arranging a plurality of negative pressure adsorption members 51 at intervals along the X2 direction, a more solid adsorption force can be provided to the bending portion 420.

[0099] The battery circuit board positioning device provided in the embodiment of the present application includes a positioning plate body 1, a first positioning structure 2, a second positioning structure 3 and a third positioning structure 5. The positioning plate body 1 includes a connecting portion 101 and a positioning portion 102 connected to each other, and the connecting portion 101 is located on one side of the positioning portion 102 along the Y1 direction. A second bearing surface 1012 is provided on the connecting portion 101, and the main body 410 of the battery circuit board 400 is supported by the second bearing surface 1012. A groove is provided on the positioning portion 102, and the groove wall of the groove constructs a first positioning structure 2 and a second positioning structure 3. The first positioning structure 2 is used to abut and position the bending portion 420 on the first bearing surface 1021 along one side of the Y1 direction, and the second positioning structure 3 is used to abut and position the bending portion 420 on the first bearing surface 1021 along one side of the X1 direction. Since the Y1 direction and the X1 direction are set at an angle, the bending portion 420 is accurately positioned on the first bearing surface 1021. The third positioning structure 5 includes a plurality of negative pressure adsorption members 51, which are used to fix the bent portion 420 after being accurately positioned by the first positioning structure 2 and the second positioning structure 3 on the first bearing surface 1021. The embodiment of the present application also sets a minimum distance L1 between the first positioning structure 2 and the edge of one side of the positioning plate body 1 along the third direction, which is smaller than the dimension L2 of the bent portion 420 along the third direction. This allows the bent portion 420 to partially extend outside the positioning plate body 1 after being positioned on the first bearing surface 1021, so as to facilitate the crimping device to crimp the terminal to the bent portion 420 extending outside the positioning plate body 1.

[0100] The embodiment of the present application also provides a crimping device, including a conveying device, a pressing head device, and a battery circuit board positioning device as in any of the above embodiments, wherein the battery circuit board positioning device is arranged on the conveying device, and the conveying device can drive the battery circuit board positioning device to reciprocate along a third direction to convey it to the pressing head device, and the pressing head device is used to crimp the terminal of the connector to the bending portion 420 of the battery circuit board 400. Both the conveying device and the pressing head device can adopt conventional structures in the prior art, which will not be described in detail here.

[0101] Combination Figure 4 and Figure 6 As shown, in order to install the battery circuit board positioning device to the conveying device, a plurality of connecting holes 1011 are provided on the connecting portion 101, and the fastener 6 is connected to the conveying device through the connecting holes 1011, so that the battery circuit board positioning device is firmly connected to the conveying device through the fastener 6. Specifically, the fastener 6 can be a bolt or a screw.

[0102] An embodiment of the present application also provides a battery production system, including the above crimping device.

[0103] 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 them; 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 replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery circuit board positioning device, the battery circuit board comprises a main body and a bending portion connected to the main body, characterized in that: The battery circuit board positioning device comprises: A positioning plate body having a first bearing surface for bearing the bending portion; A first positioning structure, disposed on the positioning plate body, wherein the first positioning structure is configured to abut against one side of the bent portion on the first bearing surface along the first direction; A second positioning structure, disposed on the positioning plate body, the second positioning structure being configured to abut against one side of the bent portion on the first bearing surface along the second direction; Wherein, the minimum distance L1 between the first positioning structure and the edge of one side of the positioning plate body along the third direction is smaller than the dimension L2 of the bending portion along the third direction; The first direction and the second direction are arranged at an angle, and the third direction is opposite to the first direction.

2. The battery circuit board positioning device according to claim 1, characterized in that: The positioning plate body also has a second bearing surface for bearing the main body; A groove is provided on one side of the positioning plate body provided with the second bearing surface, the groove wall of the groove in the first direction constitutes the first positioning structure, and the groove wall of the groove in the second direction constitutes the second positioning structure; The bottom wall of the groove forms the first bearing surface.

3. The battery circuit board positioning device according to claim 2, characterized in that: Along the third direction, the groove extends to a side edge of the positioning plate body along the third direction.

4. The battery circuit board positioning device according to claim 3, characterized in that: Along the fourth direction, the groove extends to a side edge of the positioning plate body along the fourth direction; Wherein, the fourth direction is opposite to the second direction.

5. The battery circuit board positioning device according to claim 2, characterized in that: The positioning plate body comprises a connecting portion and a positioning portion connected to each other; The connecting portion is located at one side of the positioning portion along the first direction, the groove is arranged on the positioning portion, and the second bearing surface is arranged on the connecting portion.

6. The battery circuit board positioning device according to any one of claims 1 to 5, characterized in that: The battery circuit board positioning device also includes at least one pre-positioning member; The pre-positioning member is arranged on the first bearing surface, and the bending portion is provided with a matching portion matching with the pre-positioning member, so that the battery circuit board can rotate around the pre-positioning member.

7. The battery circuit board positioning device according to claim 6, characterized in that: The pre-positioning member includes a positioning column; The matching portion is configured as a positioning hole adapted to the positioning post, and the positioning post can be inserted into the positioning hole.

8. The battery circuit board positioning device according to any one of claims 1 to 5, characterized in that: The battery circuit board positioning device also includes: A third positioning structure is disposed on the first bearing surface, and the third positioning structure is configured to fix the bending portion on the first bearing surface.

9. The battery circuit board positioning device according to claim 8, characterized in that: The third positioning structure includes at least one negative pressure adsorption component; The negative pressure adsorption component is arranged on the first bearing surface, and is used for vacuum adsorption of the bending portion.

10. The battery circuit board positioning device according to claim 9, characterized in that: The third positioning structure includes a plurality of negative pressure adsorption members; The plurality of negative pressure adsorption members are arranged at intervals along the second direction.

11. The battery circuit board positioning device according to any one of claims 1 to 5, characterized in that: When the battery circuit board is flattened, the main body and the bent portion are arranged along the second direction; a dimension W1 of the battery circuit board along the second direction is greater than or equal to a dimension W2 of the battery circuit board along the first direction.

12. The battery circuit board positioning device according to claim 11, characterized in that: The ratio of the size W1 to the size W2 ranges from 5 to 100.

13. The battery circuit board positioning device according to claim 12, characterized in that: The ratio of the size W1 to the size W2 ranges from 18 to 60.

14. A crimping device, characterized in that: It comprises a conveying device, a pressing head device and a battery circuit board positioning device as claimed in any one of claims 1 to 13; The battery circuit board positioning device is arranged on the conveying device, and the conveying device can drive the battery circuit board positioning device to reciprocate along the third direction to convey it to the pressing head device; The pressing head device is used to press the terminal of the connector onto the bent portion of the battery circuit board.

15. A battery production system, characterized in that: Comprising a crimping device as claimed in claim 14.

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