Positioning device and transport system

Abstract

The utility model relates to a positioning device and a carrying system, and the positioning device comprises a base which is provided with a mounting cavity; the clamping assembly is arranged in the mounting cavity and comprises a supporting frame and rolling wheels, the supporting frame is connected with the base, and the rolling wheels are rotationally matched with the supporting frame; wherein in the axial direction of the idler wheel, the size of the cross section of the idler wheel is firstly reduced and then increased, a concave face is formed on the periphery of the idler wheel, and the concave face partially protrudes out of the base. According to the positioning device and the carrying system provided by the embodiment of the invention, after the battery monomers are positioned, the contact and wrapping areas are increased, the stability is high, and the reliability of the carrying process is improved.

Description

Technical Field

[0001] The present application relates to the field of battery-assisted technology, and in particular to a positioning device and a transport system. Background Art

[0002] Energy conservation and emission reduction are the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages in energy conservation and environmental protection. For electric vehicles, battery technology is an important factor in their development.

[0003] In the related art, battery cells, especially cylindrical battery cells, need to be fixed by a handling system during the production process. The handling system in the related art has a positioning device that is not stable enough after positioning the battery cells, and the battery cells are prone to shaking, which affects the reliability of the battery cells during handling. Utility Model Content

[0004] The embodiments of the present application provide a positioning device and a transport system. After the positioning device positions a battery cell, the stability is high, thereby improving the reliability of the transport process.

[0005] On the one hand, according to an embodiment of the present application, a positioning device is provided, including: a base, having an installation cavity; a clamping assembly, arranged in the installation cavity, the clamping assembly including a support frame and a roller, the support frame is connected to the base, and the roller rotates in cooperation with the support frame; wherein, along the axial direction of the roller, the cross-sectional size of the roller first decreases and then increases, and a concave surface is formed on the outer periphery of the roller, and the concave surface portion protrudes from the base.

[0006] The positioning device provided by one embodiment of the present application includes a base and a clamping assembly, wherein the support frame of the clamping assembly is used to connect with the base, and the roller rotates with the support frame. When the battery monomer to be transported slides into the clamping space formed by the positioning device and other auxiliary structures, due to the rolling cooperation between the roller and the support frame, the battery monomer is subjected to rolling friction with the roller during the sliding process, thereby reducing damage to the battery monomer. At the same time, since the cross-sectional size of the roller first decreases and then increases along the axial direction of the roller, a concave surface is formed on the outer periphery of the roller, and the concave surface part protrudes from the base setting, so that the battery monomer can contact with the concave surface of the roller, which can increase the contact area between the positioning device and the battery monomer, better wrap the battery monomer, and make the battery monomer remain stable, not shaken, and not rotated in the positioning device during the transportation process. At the same time, the raised parts on both sides of the concave surface can provide position limits for the battery monomer, ensure the stability of the positioning of the battery monomer, and improve the reliability of its transportation process.

[0007] According to one aspect of the embodiments of the present application, there are multiple clamping assemblies, and each clamping assembly is respectively disposed in the installation cavity and respectively connected to the base.

[0008] A positioning device provided in an embodiment of the present application can clamp and position a battery cell by using multiple clamping assemblies by making the number of clamping assemblies multiple and limiting the connection relationship between the bases, so that the battery cell is not easily tilted, thereby ensuring the reliability of the battery cell during transportation.

[0009] According to one aspect of the embodiment of the present application, the clamping assemblies are arranged in pairs and are symmetrically distributed in the installation cavity.

[0010] A positioning device provided by an embodiment of the present application arranges the clamping components in pairs and distributes them symmetrically, so that the clamping components arranged in pairs can jointly position the same battery cell, thereby achieving double-point support for the battery cell, and can better position the battery cell vertically, making it difficult for the battery cell to tilt. The injection ports on the battery cell remain consistent, which can not only ensure the injection requirements, but also reduce the leakage of the electrolyte after the electrolyte is injected.

[0011] According to one aspect of the embodiments of the present application, the distances from the lowest point of the concave surface closest to the roller axis to the two ends of the roller in the axial direction are equal.

[0012] A positioning device provided in an embodiment of the present application makes the distance from the lowest point where the concave surface is closest to the roller axis to the two ends of the roller in the axial direction equal. While ensuring that the contact area with the battery cell is increased, it can ensure the balance of the battery cell limitation on both sides in the axial direction, avoid the battery cell from being subjected to unbalanced load, and effectively improve the reliability of the battery cell positioning.

[0013] According to one aspect of the embodiment of the present application, the support frame is rotatably connected to the base, and the clamping assembly further includes an adjusting member, which is connected to the support frame and drives the support frame to drive the roller to rotate relative to the base.

[0014] A positioning device provided by an embodiment of the present application, through the clamping assembly also including an adjusting member, can use the adjusting member to drive the support frame to rotate, and then drive the roller to rotate to adjust the size of the roller protruding from the base. Therefore, the pressure on the battery cell can be adjusted according to the positioning requirements to ensure the stability of the battery cell.

[0015] According to one aspect of an embodiment of the present application, the installation cavity is set through the base in a first direction, the first direction intersects with the axial direction, the adjusting member includes an elastomer, and a first limit member is set on one side of the base in the first direction, and the elastomer is clamped between the support frame and the first limit member.

[0016] A positioning device provided in an embodiment of the present application, by making the adjusting member include an elastomer, and by providing a first limit member and the relationship between the elastomer, the first limit member and the support frame, can utilize the adaptive function of the elastomer to adaptively adjust the pressure on the battery cell according to the radial size of the battery cell, thereby ensuring the positioning stability of the positioning device, improving the versatility of the positioning device, and reducing the probability of collision and damage to the outer surface of the battery cell.

[0017] According to one aspect of the embodiments of the present application, a groove is provided on at least one of the first limiting member and the supporting frame, and the elastic body partially extends into the groove and abuts against the bottom wall of the groove.

[0018] A positioning device provided in an embodiment of the present application can limit the elastomer by providing a groove on at least one of the first limiting member and the support frame and defining the relationship between the elastomer and the groove, thereby facilitating the positioning and installation of the elastomer and ensuring the limitation of the elastomer, reducing the probability of the elastomer being separated from the first limiting member and the support frame after being squeezed, and improving the stability of the positioning device.

[0019] According to one aspect of an embodiment of the present application, the positioning device further includes a second limit member, which is disposed on a side of the base away from the second limit member in the first direction to limit a rotation angle of the support frame relative to the base.

[0020] The positioning device provided in one embodiment of the present application can limit the rotation angle of the support frame relative to the base by setting a second limiter, thereby preventing the support frame from driving the roller to rotate excessively and causing damage to the battery body, thereby improving positioning reliability.

[0021] According to one aspect of the embodiment of the present application, the second position limiting member is in a plate-like structure and extends axially, a mounting groove is provided on the base, and the second position limiting member at least partially extends into the mounting groove and is detachably connected to the base.

[0022] The positioning device provided in one embodiment of the present application can simplify the structure of the second position limiter by making the second position limiter a plate-shaped structure. The mounting groove provided on the base is conducive to the positioning and installation of the second position limiter, and can make the distance between the second position limiter and the support frame in the first direction closer, so that the support frame can rotate within a suitable range, which is conducive to adapting to the use conditions in the battery field. The detachable connection between the second position limiter and the mounting groove is conducive to the assembly of the clamping component and reduces the difficulty of assembling the positioning device.

[0023] According to one aspect of the embodiment of the present application, along the first direction, the orthographic projection of the second limiting member and the orthographic projection of the roller are staggered.

[0024] A positioning device provided in an embodiment of the present application can avoid interference of the second limiting member with the contact between the roller and the battery cell by staggering the orthographic projection of the second limiting member and the orthographic projection of the roller, thereby ensuring the contact area between the roller and the battery cell while limiting the position, thereby improving the reliability of positioning the battery cell.

[0025] According to one aspect of an embodiment of the present application, the support frame includes a frame body and ear seats arranged in pairs, the ear seats arranged in pairs are spaced apart in the axial direction and are respectively connected to the frame body, the positioning device also includes a connecting shaft, the connecting shaft is axially inserted into the frame body and the base and is gap-matched with the frame body, and the roller is located between the ear seats arranged in pairs and is rotatably connected to the ear seats.

[0026] A positioning device provided by an embodiment of the present application, wherein the support frame adopts the above-mentioned structural form and the setting of the connecting shaft, is conducive to ensuring the rotational connection requirements between the roller and the support frame and the rotational connection requirements between the support frame and the base, simplifying the structure of the positioning device and improving the compactness of the positioning device.

[0027] On the other hand, according to an embodiment of the present application, a handling system is provided, comprising the above-mentioned positioning device; an auxiliary member, which is arranged facing the concave surface and forms a clamping cavity between the auxiliary member and the positioning device.

[0028] According to another aspect of the embodiment of the present application, the surface of the auxiliary component facing the positioning device is an arc-shaped surface and is recessed toward the side away from the positioning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0030] Figure 1 is a schematic diagram of a battery cell according to an embodiment of the present application;

[0031] Figure 2 This is a schematic diagram of the structure of the handling system and the battery cell in one embodiment of the present application;

[0032] Figure 3 is a schematic structural diagram of a positioning device according to an embodiment of the present application;

[0033] Figure 4 is a top view of a positioning device according to an embodiment of the present application;

[0034] Figure 5 yes Figure 4 The cross-sectional view along the AA direction;

[0035] Figure 6 is a schematic structural diagram of a base of an embodiment of the present application;

[0036] Figure 7 is a schematic structural diagram of a roller according to an embodiment of the present application;

[0037] Figure 8 is a schematic structural diagram of a first position-limiting member according to an embodiment of the present application;

[0038] Fig. 9 is a schematic structural diagram of a second position-limiting member according to an embodiment of the present application;

[0039] Fig.10 It is a schematic structural diagram of a support frame of an embodiment of the present application.

[0040] in:

[0041] 100- positioning device;

[0042] 10- base;

[0043] 11-installation cavity; 12-installation slot;

[0044] 20- clamping assembly;

[0045] 21-support frame; 211-frame body; 212-ear seat;

[0046] 22-roller; 221-concave surface; 222-first end surface; 223-second end surface;

[0047] 23-adjusting member;

[0048] 30-first stopper; 31-groove;

[0049] 40-second limiting member; 50-connecting shaft;

[0050] 200- auxiliary part; 210- arc surface;

[0051] 300 - battery cell; 310 - housing; 320 - end cap assembly;

[0052] X-axis direction; Y-first direction.

[0053] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0054] 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.

[0055] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the embodiments of the present application should have the common meanings understood by technicians in the field to which the embodiments of the present application belong.

[0056] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings and 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.

[0057] In addition, the technical terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number 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.

[0058] 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 ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0059] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0060] 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 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.

[0061] 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.

[0062] The battery cell may be a secondary battery cell, which refers to a battery cell that can be continuously used by activating active materials by charging after the battery cell is discharged.

[0063] like Figure 1 As shown, the battery cell 300 includes a shell 310, an end cover assembly 320, an electrode assembly and an electrolyte, and the shell is cylindrical.

[0064] The electrode assembly is arranged in the housing 310, and the electrode assembly is a component in the battery cell 300 where an electrochemical reaction occurs. One or more electrode assemblies may be contained in the housing 310. The electrode assembly is mainly formed by winding or stacking the positive electrode sheet and the negative electrode sheet, and a separator is usually provided between the positive electrode sheet and the negative electrode sheet. The parts of the positive electrode sheet and the negative electrode sheet with active materials constitute the main body of the electrode assembly, and the parts of the positive electrode sheet and the negative electrode sheet without active materials each constitute a pole ear (not shown in the figure). The positive pole ear and the negative pole ear may be located together at one end of the main body or respectively at both ends of the main body. During the charge and discharge process of the battery, the positive electrode active material and the negative electrode active material react with the electrolyte, and the pole ears connect the electrode terminals to form a current loop.

[0065] The end cap assembly 320 refers to a component that covers the opening of the housing 310 to isolate the internal environment of the battery cell 300 from the external environment. Without limitation, the shape of the end cap assembly 320 can be adapted to the shape of the housing 310 to match the housing 310.

[0066] The end cap assembly 320 includes a cover plate and an electrode terminal. The cover plate is provided with a liquid injection hole. The electrolyte is filled into the shell 310 through the liquid injection hole. The end cap assembly 320 is provided to close the opening of the shell 310 .

[0067] The applicant noticed that the cylindrical battery cell 300 in the related art needs to be fixed by a handling system during the production process. The positioning device 100 in the handling system in the related art is not stable enough after positioning the battery cell 300, and the battery cell 300 is prone to shaking, which affects the reliability of the battery cell 300 during the handling process. Further research found that the positioning device 100 in the related art has a structural deficiency in the design of the components used to cooperate with the battery cell 300, so that the battery cell 300 cannot be limited after being clamped, so that the friction resistance provided by the positioning device 100 can be overcome by inertia or a small external force during transportation, causing movement and shaking.

[0068] Based on the above considerations, the applicant has conducted in-depth research and designed a new positioning device, which includes a base and a clamping assembly. The base has an installation cavity, and the clamping assembly is arranged in the installation cavity. The clamping assembly includes a support frame and a roller. The support frame is connected to the base, and the roller rotates with the support frame. In the axial direction of the roller, the cross-sectional size of the roller first decreases and then increases, and a concave surface is formed on the outer periphery of the roller, and the concave surface part protrudes from the base. After the positioning device positions the battery cell, it has high stability and improves the reliability of the handling process.

[0069] It should be understood that the technical solutions described in the embodiments of the present application are applicable to various devices for forming and transporting cylindrical battery cells 300.

[0070] For example, Figure 2 As shown, one embodiment of the present application provides a transport system, which includes a positioning device 100 and an auxiliary part 200. A clamping cavity is formed between the auxiliary part 200 and the positioning part for clamping and fixing a battery cell 300. The battery cell 300 can be moved together with the auxiliary part 200 and the positioning part to achieve actions such as transporting the battery cell 300.

[0071] like Figures 2 to 7 As shown, a positioning device 100 provided by an embodiment of the present application includes a base 10 and a clamping assembly 20, the base 10 has an installation cavity 11, the clamping assembly 20 is arranged in the installation cavity 11, the clamping assembly 20 includes a support frame 21 and a roller 22, the support frame 21 is connected to the base 10, and the roller 22 is rotatably matched with the support frame 21, wherein along the axial direction X of the roller 22, the cross-sectional size of the roller 22 first decreases and then increases, and a concave surface 221 is formed on the outer periphery of the roller 22, and the concave surface 221 partially protrudes from the base 10.

[0072] The base 10 may adopt a frame-shaped structure in which the installation cavity 11 is provided through, or may adopt a seat body structure in which the installation cavity 11 extends to a certain depth but is provided through the base 10 itself.

[0073] The number of the clamping components 20 can be one group or more than one group. Each group of the clamping components 20 can be disposed in the installation cavity 11 of the base 10 and connected to the base 10 .

[0074] The support frame 21 and the base 10 may be connected in a fixed manner, such as by welding or by locking and fixing with fasteners such as bolts and screws. They may also be connected in a rotating manner, such as by using a connecting shaft 50 in an articulated manner.

[0075] The outer periphery of the roller 22 may be an arcuate surface 210 which is recessed from the outer periphery of the roller 22 toward the center of the roller 22. Along the axial direction X of the roller 22, the cross-sectional dimension of the roller 22 may first gradually decrease and then gradually increase. The outer periphery of the roller 22 may be formed by an arcuate line recessed toward the center line of the roller 22 and rotating around the center line of the roller 22 for one circle.

[0076] The concave surface 221 is partially protruded from the base 10 , which can be understood as the roller 22 can be partially located in the installation cavity 11 and partially exceed the installation cavity 11 and protrude from one of the surfaces of the base 10 .

[0077] A positioning device 100 provided in an embodiment of the present application can be used in a positioning system and used in conjunction with an auxiliary component 200. The positioning device 100 includes a base 10 and a clamping assembly 20. The support frame 21 of the clamping assembly 20 is used to connect with the base 10, and the roller 22 rotates with the support frame 21. When the battery cell 300 to be transported slides into the clamping space formed by the positioning device 100 and the auxiliary component 200, due to the rolling cooperation between the roller 22 and the support frame 21, the battery cell 300 has rolling friction with the roller 22 during the sliding process, thereby reducing damage to the battery cell 300. At the same time, since the cross-sectional size of the roller 22 first decreases and then increases along the axial direction X of the roller 22, a concave surface 221 is formed on the outer periphery of the roller 22, and the concave surface 221 partially protrudes from the base 10, so that the battery cell 300 can contact the concave surface 221 of the roller 22, which can increase the contact area between the positioning device 100 and the battery cell 300, and better wrap the battery cell 300, so that the battery cell 300 remains stable, does not shake, and does not rotate in the positioning device 100 during transportation. At the same time, the raised parts on both sides of the concave surface 221 can provide limit for the battery cell 300, ensure the stability of the positioning of the battery cell 300, and improve the reliability of its transportation process.

[0078] In some optional embodiments, a positioning device 100 provided in one embodiment of the present application has a plurality of clamping assemblies 20 , and each clamping assembly 20 is respectively disposed in the installation cavity 11 and respectively connected to the base 10 .

[0079] The number of the clamping assemblies 20 may be two, three or more. The multiple clamping assemblies 20 may be distributed along the same direction and jointly position a battery cell 300. Of course, the multiple clamping assemblies 20 may also be arranged in groups, with each or more than two clamping assemblies 20 clamping one of the battery cells 300. Optionally, the multiple clamping assemblies 20 may be distributed along the same direction and jointly position a battery cell 300.

[0080] A positioning device 100 provided in an embodiment of the present application can clamp and position a battery cell 300 by using multiple clamping assemblies 20 by making the number of clamping assemblies 20 multiple and limiting the connection relationship between the bases 10, so that the battery cell 300 is not easily tilted, thereby ensuring the reliability of the battery cell 300 during transportation.

[0081] In some optional embodiments, in a positioning device 100 provided by one embodiment of the present application, the clamping assemblies 20 are arranged in pairs and symmetrically distributed in the installation cavity 11.

[0082] The clamping assemblies 20 may be a pair or multiple pairs. When there are multiple pairs, each pair of clamping assemblies 20 may correspondingly clamp one battery cell 300. The clamping assemblies 20 arranged in pairs may be symmetrically distributed in the height direction of the battery cell 300.

[0083] A positioning device 100 provided in an embodiment of the present application arranges the clamping assemblies 20 in pairs and distributes them symmetrically, so that the clamping assemblies 20 arranged in pairs can jointly position the same battery cell 300, thereby achieving double-point support for the battery cell 300, and can better position the battery cell 300 vertically, so that the battery cell 300 is not easy to tilt, and the injection port on the battery cell 300 remains consistent, which can not only meet the injection requirements, but also reduce the leakage of the electrolyte after the electrolyte is injected.

[0084] like Figure 7 As shown, in some optional embodiments, in a positioning device 100 provided by an embodiment of the present application, the distances from the lowest point where the concave surface 221 is closest to the axis of the roller 22 to both ends of the roller 22 in the axial direction X are equal, that is, H1 is equal to H2.

[0085] The roller 22 has a first end face 222, a second end face 223, and an outer peripheral face connected between the first end face 222 and the second end face 223 in the axial direction X. The outer peripheral face is a concave surface 221, and the vertical distance from the lowest point of the concave surface 221 to the first end face 222 and the vertical distance from the lowest point to the second end face 223 in the axial direction X are equal. In other words, the roller 22 is a symmetrical structure in the axial direction X.

[0086] A positioning device 100 provided in an embodiment of the present application makes the distance from the lowest point where the concave surface 221 is closest to the axis of the roller 22 to the two ends of the roller 22 in the axial direction X equal. While ensuring that the contact area with the battery cell 300 is increased, it can ensure the balance of limiting the battery cell 300 on both sides in the axial direction X, avoid the battery cell 300 from being subjected to unbalanced load, and effectively improve the reliability of the positioning of the battery cell 300.

[0087] like Figure 5 As shown, in some optional embodiments, a positioning device 100 is provided in one embodiment of the present application, wherein the support frame 21 is rotatably connected to the base 10, and the clamping assembly 20 also includes an adjusting member 23, which is connected to the support frame 21 and drives the support frame 21 to drive the roller 22 to rotate relative to the base 10.

[0088] The adjusting member 23 can be provided with a mounting frame separately to support itself. Of course, the adjusting member 23 can also be directly or indirectly connected to the base 10 .

[0089] The adjusting member 23 drives the supporting frame 21 to rotate, so as to change the size of the roller 22 protruding from the base 10 .

[0090] The adjusting member 23 includes but is not limited to an elastic member, a telescopic member, a damping member, and the like.

[0091] A positioning device 100 provided in an embodiment of the present application enables the clamping assembly 20 to also include an adjusting member 23, and can utilize the adjusting member 23 to drive the support frame 21 to rotate, thereby driving the roller 22 to rotate, so as to adjust the size of the roller 22 protruding from the base 10. In this way, the pressure on the battery cell 300 can be adjusted according to the positioning requirements to ensure the stability of the battery cell 300.

[0092] like Figures 3 to 8 As shown, in some optional embodiments, a positioning device 100 is provided in an embodiment of the present application, and the mounting cavity 11 is arranged to penetrate the base 10 in a first direction Y, the first direction Y intersects with the axial direction X, the adjusting member 23 includes an elastomer, and the base 10 is provided with a first limit member 30 on one side of the first direction Y, and the elastomer is clamped between the support frame 21 and the first limit member 30.

[0093] The angle between the first direction Y and the axial direction X may be 85° to 95°, and may be 90 degrees, that is, the first direction Y and the axial direction X may be perpendicular to each other.

[0094] The first limiting member 30 disposed on the base 10 in the first direction Y may be detachably connected to the base 10 , may be fixedly connected, or may be detachably connected.

[0095] The elastic body includes but is not limited to a spring, a rubber pad or an air bag that can be compressed and deformed.

[0096] The elastic body can be connected to both the support frame 21 and the first stopper 30 by abutting. Of course, the elastic body can be connected to one of the support frame 21 and the first stopper 30 by fixed connection, and connected to the other by abutting. In some embodiments, the elastic body can be connected to both the support frame 21 and the first stopper 30 by fixed connection.

[0097] A positioning device 100 provided in an embodiment of the present application, by making the adjustment member 23 include an elastomer, and by providing a first limit member 30 and the relationship between the elastomer, the first limit member 30 and the support frame 21, can utilize the adaptive function of the elastomer to adaptively adjust the pressure on the battery cell 300 according to the radial size of the battery cell 300, thereby ensuring the positioning stability of the positioning device 100, improving the versatility of the positioning device 100, and reducing the probability of collision and damage to the outer surface of the battery cell 300.

[0098] In some optional embodiments, in a positioning device 100 provided in one embodiment of the present application, a groove 31 is provided on at least one of the first limiting member 30 and the support frame 21 , and the elastic body partially extends into the groove 31 and abuts against the bottom wall of the groove 31 .

[0099] The groove 31 may be provided on one of the first position-limiting member 30 and the support frame 21 , or may be provided on both the first position-limiting member 30 and the support frame 21 .

[0100] The elastic body is partially accommodated in the groove 31 , and the elastic body and the bottom wall of the groove 31 may be in contact but not connected. Of course, they may also be connected by welding or other methods.

[0101] A positioning device 100 provided in an embodiment of the present application is capable of limiting the elastomer by providing a groove 31 on at least one of the first limiting member 30 and the support frame 21 and defining the relationship between the elastomer and the groove 31, thereby facilitating the positioning and installation of the elastomer and ensuring the limitation of the elastomer, reducing the probability of the elastomer being separated from the first limiting member 30 and the support frame 21 after being squeezed, and improving the stability of the positioning device 100.

[0102] like Figures 3 to 9 As shown, in some optional embodiments, the positioning device 100 provided in one embodiment of the present application further includes a second limit member 40, and the second limit member 40 is arranged on the side of the base 10 away from the second limit member 40 in the first direction Y to limit the rotation angle of the support frame 21 relative to the base 10.

[0103] The second limiting member 40 may be in the shape of a plate or a beam.

[0104] The positioning device 100 provided in one embodiment of the present application can limit the rotation angle of the support frame 21 relative to the base 10 by setting a second limiter 40, thereby preventing the support frame 21 from driving the roller 22 to rotate excessively and causing damage to the battery body, thereby improving positioning reliability.

[0105] In some optional embodiments, in a positioning device 100 provided by an embodiment of the present application, the second limit member 40 is a plate-like structure and extends along the axial direction X, a mounting groove 12 is provided on the base 10, and the second limit member 40 at least partially extends into the mounting groove 12 and is detachably connected to the base 10.

[0106] The shape of the mounting groove 12 may match the shape of the end of the second limiting member 40 facing the base 10 .

[0107] The second limiting member 40 may partially or completely extend into the mounting groove 12 .

[0108] The second position-limiting member 40 and the base 10 may be locked with fasteners such as bolts, screws, and rivets, or may be positioned with elastic body snap-fitting or pin-shaft plug-in or the like.

[0109] The positioning device 100 provided in one embodiment of the present application can simplify the structure of the second position limiter 40 by making the second position limiter 40 a plate-like structure. The mounting groove 12 provided on the base 10 is conducive to the positioning and installation of the second position limiter 40, and can make the distance between the second position limiter 40 and the support frame 21 in the first direction Y closer, so that the support frame 21 can rotate within a suitable range, which is conducive to adapting to the use conditions in the battery field. The detachable connection between the second position limiter 40 and the mounting groove 12 is conducive to the assembly of the clamping assembly 20 and reduces the assembly difficulty of the positioning device 100.

[0110] In some optional embodiments, in a positioning device 100 provided by an embodiment of the present application, along the first direction Y, the orthographic projection of the second limiting member 40 and the orthographic projection of the roller 22 are staggered.

[0111] In the first direction Y, the orthographic projection of the second position-limiting member 40 does not overlap with the orthographic projection of the roller 22 .

[0112] A positioning device 100 provided in an embodiment of the present application can avoid interference of the second limiting member 40 with the contact between the roller 22 and the battery cell 300 by staggering the orthographic projection of the second limiting member 40 and the orthographic projection of the roller 22, thereby ensuring the contact area between the roller 22 and the battery cell 300 while limiting the position, thereby improving the reliability of positioning the battery cell 300.

[0113] like Figures 3 to 10As shown, in some optional embodiments, a positioning device 100 is provided in one embodiment of the present application, wherein the support frame 21 includes a frame body 211 and ear seats 212 arranged in pairs, the ear seats 212 arranged in pairs are spaced apart in the axial direction X and are respectively connected to the frame body 211, the positioning device 100 also includes a connecting shaft 50, the connecting shaft 50 is inserted into the frame body 211 and the base 10 along the axial direction X and is gap-matched with the frame body 211, and the roller 22 is located between the ear seats 212 arranged in pairs and is rotatably connected to the ear seats 212.

[0114] The frame body 211 may be in a plate-like structure or a block-like structure.

[0115] The size of the ear seat 212 in the axial direction X is smaller than that of the frame body 211, and the ear seats 212 arranged in pairs are spaced apart in the axial direction X. The ear seat 212 and the frame body 211 can be connected by a fixed method such as welding or an integrated structure, or can be connected by a detachable connection method such as bolts.

[0116] The roller 22 is located between the ear seats 212 arranged in pairs and is rotatably engaged with the two ear seats 212 .

[0117] The connecting shaft 50 can be synchronously inserted into the base 10 and the frame body 211 along the axial direction X, so that the frame body 211 can rotate with the connecting shaft 50, and can also rotate with the base 10 through the connecting shaft 50.

[0118] A positioning device 100 provided in one embodiment of the present application, wherein the support frame 21 adopts the above-mentioned structural form and the setting of the connecting shaft 50, is conducive to ensuring the rotational connection requirements between the roller 22 and the support frame 21 and the rotational connection requirements between the support frame 21 and the base 10, simplifying the structure of the positioning device 100, and improving the compactness of the positioning device 100.

[0119] In some optional embodiments, a positioning device 100 provided in an embodiment of the present application includes a base 10, a clamping assembly 20 and a second limiter 40. The base 10 can be in the shape of a rectangular frame. The base 10 has an installation cavity 11, and the installation cavity 11 is set through along the first direction Y. The clamping assembly 20 is arranged in pairs and symmetrically distributed in the installation cavity 11. The clamping assembly 20 includes a support frame 21 and a roller 22. The support frame 21 is connected to the base 10, and the roller 22 is rotatably matched with the support frame 21. Among them, along the axial direction X of the roller 22, the cross-sectional size of the roller 22 first decreases and then increases, and the outer periphery of the roller 22 forms There is a concave surface 221, which partially protrudes from the base 10. The distance from the lowest point of the concave surface 221 closest to the axis of the roller 22 to the two ends of the roller 22 in the axial direction X is equal. The support frame 21 includes a frame body 211 and ear seats 212 arranged in pairs. The ear seats 212 arranged in pairs are spaced apart in the axial direction X and are respectively connected to the frame body 211. The positioning device 100 also includes a connecting shaft 50. The connecting shaft 50 is inserted into the frame body 211 and the base 10 along the axial direction X and is gap-matched with the frame body 211. The roller 22 is located between the ear seats 212 arranged in pairs and is rotatably connected to the ear seats 212. The clamping assembly 20 also includes an adjusting member 23, which includes an elastic body. A first stopper 30 is provided on one side of the base 10 in the first direction Y. The elastic body is clamped and arranged between the support frame 21 and the first stopper 30. A groove 31 is provided on the first stopper 30 and the support frame 21. The elastic body partially extends into the groove 31 and abuts against the bottom wall of the groove 31. A second stopper 40 is provided on the side of the base 10 away from the second stopper 40 in the first direction Y to limit the rotation angle of the support frame 21 relative to the base 10. The second stopper 40 is a plate-like structure and extends along the axial direction X. A mounting groove 12 is provided on the base 10. The second stopper 40 partially extends into the mounting groove 12 and is detachably connected to the base 10. Along the first direction Y, the orthographic projection of the second stopper 40 is staggered with the orthographic projection of the roller 22, and the first direction Y is perpendicular to the axial direction X.

[0120] like Figure 2 As shown, on the other hand, the handling system provided by an embodiment of the present application includes the positioning device 100 and the auxiliary component 200 provided in the above-mentioned embodiments, and the two can work together to clamp and position the battery cell 300. At the same time, the structural setting of the positioning device 100 can increase the contact area with the battery cell 300, and better wrap the battery cell 300, so that the electrode assembly of the battery cell 300 is stable, does not shake, and does not rotate in the positioning device 100 during the handling process. At the same time, the raised parts on both sides of the concave surface 221 can provide limit for the battery cell 300, ensure the positioning of the battery cell 300, and improve the reliability of the handling process of the handling system.

[0121] In some optional embodiments, in a transport system provided by an embodiment of the present application, the surface of the auxiliary component 200 facing the positioning device 100 is a curved surface 210 and is recessed toward a side away from the positioning device 100 .

[0122] Through the above arrangement, the contact area between the auxiliary component 200 and the battery cell 300 can be further increased, the battery cell 300 can be better wrapped, and the stability of the battery cell 300 during transportation can be improved.

[0123] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A positioning device, characterized in that: include: A base having a mounting cavity; A clamping assembly is arranged in the installation cavity, and the clamping assembly includes a support frame and a roller, the support frame is connected to the base, and the roller is rotatably matched with the support frame; Wherein, along the axial direction of the roller, the cross-sectional size of the roller first decreases and then increases, and a concave surface is formed on the outer periphery of the roller, and the concave surface portion protrudes from the base.

2. The positioning device according to claim 1, characterized in that: There are multiple clamping assemblies, and each of the clamping assemblies is respectively arranged in the installation cavity and is respectively connected to the base.

3. The positioning device according to claim 2, characterized in that: The clamping components are arranged in pairs and are symmetrically distributed in the installation cavity.

4. The positioning device according to claim 1, characterized in that: The distances from the lowest point of the concave surface closest to the roller axis to both ends of the roller in the axial direction are equal.

5. The positioning device according to claim 1, characterized in that: The support frame is rotatably connected to the base, and the clamping assembly further comprises an adjusting member, which is connected to the support frame and drives the support frame to drive the roller to rotate relative to the base.

6. The positioning device according to claim 5, characterized in that: The mounting cavity is arranged to penetrate the base in a first direction, the first direction intersects with the axial direction, the adjusting member includes an elastomer, a first limiting member is arranged on one side of the base in the first direction, and the elastomer is clamped between the supporting frame and the first limiting member.

7. The positioning device according to claim 6, characterized in that: A groove is provided on at least one of the first limiting member and the supporting frame, and the elastic body partially extends into the groove and abuts against the bottom wall of the groove.

8. The positioning device according to claim 6, characterized in that: The positioning device further includes a second limiting member, which is disposed on a side of the base away from the second limiting member in the first direction to limit a rotation angle of the support frame relative to the base.

9. The positioning device according to claim 8, characterized in that: The second position-limiting member is in a plate-like structure and extends along the axial direction. The base is provided with a mounting groove. The second position-limiting member at least partially extends into the mounting groove and is detachably connected to the base.

10. The positioning device according to claim 8, characterized in that: Along the first direction, the orthographic projection of the second limiting member and the orthographic projection of the roller are staggered.

11. The positioning device according to claim 1, characterized in that: The support frame includes a frame body and ear seats arranged in pairs, the ear seats arranged in pairs are spaced apart in the axial direction and are respectively connected to the frame body, the positioning device also includes a connecting shaft, the connecting shaft is inserted into the frame body and the base along the axial direction and is gap-matched with the frame body, and the roller is located between the ear seats arranged in pairs and is rotatably connected to the ear seats.

12. A transport system, characterized in that: include: The positioning device according to any one of claims 1 to 11; An auxiliary component is arranged facing the concave surface and forms a clamping cavity between the auxiliary component and the positioning device.

13. The transport system according to claim 12, characterized in that: The surface of the auxiliary component facing the positioning device is an arc-shaped surface and is concavely arranged toward a side away from the positioning device.

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