Stacking tool and battery cell module welding system

Abstract

The utility model relates to the technical field of battery module assembling and welding, in particular to a stacking tool and a battery cell module welding system. The supporting structure comprises a mounting base, at least two first supporting pieces are arranged on the mounting base at intervals, and each first supporting piece is provided with a first supporting face higher than the surface of the mounting base. The supporting structure provided by the utility model can be used for the battery cell module welding system, the at least two first supporting pieces are arranged on the mounting seat at intervals, during working, the two ends of the liquid cooling plate are respectively placed on the first supporting surfaces on the same side, and the first supporting surfaces are higher than the surface of the mounting seat, so that the liquid cooling plate is placed in an overhead manner; the concave-convex structure at the bottom of the liquid cooling plate is prevented from influencing the placement stability, the top surfaces of the battery cells can be located on the same welding surface, and subsequent welding of the pole is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of battery module assembly welding, in particular to a stacking tool and a battery core module welding system. Background Art

[0002] The bottom of the liquid cooling plate is usually a concave-convex structure, which makes it difficult to lay flat stably, so that the battery cells installed on the liquid cooling plate cannot be placed upright stably. As a result, when welding the poles, it is not possible to ensure that the welding surfaces of the poles are in the same plane, which increases the difficulty of welding and the welding quality is not high. Utility Model Content

[0003] The purpose of the invention of the utility model is to provide a stacking tool and a battery module welding system to address the problems existing in the prior art, which can ensure that the top surfaces of the battery cells are on the same reference plane, thereby facilitating the subsequent welding of the poles.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A support structure comprises a mounting seat, on which at least two first support members are arranged at intervals, and the first support members have a first support surface higher than the surface of the mounting seat.

[0006] The support structure provided in the present application can be used in a battery cell module welding system. By arranging at least two first support members on the mounting base at intervals, when working, the two ends of the liquid cooling plate are respectively placed on the first support surfaces on the same side. Since the first support surface is higher than the surface of the mounting base, the liquid cooling plate can be placed in the air to avoid the concave and convex structure at the bottom of the liquid cooling plate affecting the stability of placement, and the top surface of the battery cell can be on the same welding surface, which is convenient for the subsequent welding of the poles.

[0007] As a preferred solution of the utility model, a positioning protrusion or a positioning groove is provided on the first supporting surface, and the positioning protrusion or the positioning groove can be used to position the liquid cooling plate along the extension direction of the mounting seat surface;

[0008] and / or,

[0009] At least one second support member is arranged between the two first support members, the second support member is made of a flexible material, and the second support member can assist in supporting the liquid cooling plate.

[0010] By providing a positioning protrusion or a positioning groove, it can cooperate with the groove or protrusion on the liquid cooling plate, so that the liquid cooling plate can be positioned easily during placement; the positioning protrusion or the positioning groove can also play a partial limiting role, which is beneficial to reduce the relative offset between the liquid cooling plate and the mounting seat.

[0011] The second supporting member can be rubber, elastomeric rubber, etc.

[0012] The second support member contacts the bottom of the liquid cooling plate and can be deformed to adapt to the shape of the bottom of the liquid cooling plate, thereby assisting in supporting the liquid cooling plate.

[0013] The utility model also provides a stacking tool, including a base and at least two supporting structures as described above, wherein: a track assembly is arranged on the base, the track assembly includes at least one track, the mounting seat can move relative to the base on the track assembly, two adjacent mounting seats can approach and move away from each other, and all first supporting surfaces are located on the same reference plane.

[0014] The stacking tooling provided in the present application can be used in a battery cell module welding system. A track assembly is arranged on the base, and the mounting seat can move relative to the base on the track assembly, so that multiple mounting seats can be moved closer to and farther away from each other. During operation, the mounting seats can be separated to facilitate the installation of the battery cell units. After the installation is completed, the mounting seats can be moved to make the battery cell units move closer to each other and form a battery cell module, which reduces the difficulty of forming the battery cell module and can reduce the dimensional error of the battery cell module. Controlling all the first supporting surfaces on the same reference plane can make the top surfaces of the battery cells on the same welding surface, which is convenient for subsequent welding operations.

[0015] As a preferred solution of the utility model, a first positioning component is provided on the base, and the first positioning component is used to position the mounting seat; the first positioning component includes a first positioning seat and a first movable member, the first positioning seat is fixed on the base, and the first movable member can move relative to the first positioning seat; a first groove is provided on the mounting seat, and the first movable member can be inserted into and removed from the first groove.

[0016] By providing a first positioning assembly for positioning the mounting seat, the distance between adjacent battery cell units can be controlled more accurately, thereby reducing the error when the battery cell units are stacked, and facilitating the smooth placement of the battery cell module into the box.

[0017] As a preferred solution of the utility model, the track is one of a slide rail and a slide groove, the mounting seat is provided with the other of the slide rail and the slide groove, and the slide rail and the slide groove are slidably matched;

[0018] or,

[0019] The track is a rolling groove, and a roller is arranged on the mounting seat, and the roller and the rolling groove are in rolling cooperation.

[0020] By respectively arranging a slide rail and a slide groove on the base and the mounting seat, the slide rail is embedded in the slide groove, and the slide rail and the slide groove slide together, the mounting seat can move relative to the base on the track assembly, thereby facilitating the installation of the battery cell unit and the forming of the battery cell module.

[0021] By setting a rolling groove on the base, setting a roller on the mounting seat, putting the roller into the rolling groove, and rolling cooperation between the roller and the rolling groove, the mounting seat can move relative to the base on the track assembly, thereby facilitating the installation of the battery cell unit and the forming of the battery cell module.

[0022] As a preferred solution of the utility model, an elastic structure is provided between two adjacent mounting seats;

[0023] and / or,

[0024] The stacking tool also includes a baffle assembly, which can move relative to the base on the track assembly. At least two mounting seats are located between two baffle assemblies, and the baffle assembly is detachably connected to the outermost mounting seat.

[0025] Providing an elastic structure can more conveniently separate two mounting seats that are close together, thereby reducing operating difficulty and improving work efficiency.

[0026] By arranging baffle assemblies on both sides of the mounting base, the battery cell units can be pushed together more conveniently, thereby reducing the difficulty of forming the battery cell module and reducing its dimensional error; the baffle assembly is detachably connected to the mounting base, and the battery cell module can be conveniently hoisted by removing the mounting base during operation.

[0027] The utility model also provides a battery cell module welding system, including a battery cell unit, a welding assembly and the stacking tooling as described above, wherein: the battery cell unit includes a liquid cooling plate and at least one battery cell, the liquid cooling plate is provided with a mounting surface, the mounting surface cooperates with the first supporting surface so that the battery cell unit is suspended on a mounting seat, and the welding assembly is used for welding the poles on the battery cell.

[0028] The battery cell module welding system provided by the present application, by using the stacking tooling as described above, can separate the mounting base to facilitate the installation of the battery cell units during operation. After the installation is completed, the mounting base can be moved to bring the battery cell units closer to each other to form a battery cell module, thereby reducing the difficulty of forming the battery cell module and reducing the dimensional error of the battery cell module. At the same time, the liquid cooling plate can be placed in an overhead manner to avoid the concave and convex structure at the bottom of the liquid cooling plate affecting the stability of placement, and the top surface of the battery cell can be on the same welding surface, which is convenient for welding the poles on the battery cell units.

[0029] As a preferred solution of the utility model, the welding assembly includes a welding plate, which is located on a side of the battery cell unit away from the mounting seat, and at least two first welding holes are provided on the welding plate, and the first welding holes are aligned with the poles.

[0030] By providing the welding plate and the first welding hole, the first welding hole is aligned with the pole during operation, so that the welding position can be controlled and accurate welding can be achieved.

[0031] As a preferred solution of the utility model, a clamping assembly is provided on one side of the welding plate close to the mounting seat, the clamping assembly includes a clamping spring and a clamping block, the clamping spring is located between the welding plate and the clamping block, a second welding hole is provided on the clamping block, and the second welding hole is aligned with the first welding hole.

[0032] By providing a clamping spring and a clamping block, when working, the clamping block abuts against the battery cell unit, the clamping spring is compressed and applies thrust to the clamping block, which can further improve the stability of the battery cell unit and help improve the welding quality.

[0033] As a preferred embodiment of the utility model, a second positioning assembly is provided on the base, and the second positioning assembly is used to position the welding plate; the second positioning assembly includes a second positioning seat and a second movable member, the second positioning seat is fixed on the base, and the second movable member can move relative to the second positioning seat; the second positioning assembly also includes a first movable member and a second movable member that can move relative to each other, a second groove is provided on the first movable member, the second movable member can be inserted into and removed from the second groove, the second movable member has a lap joint, and the welding plate is lapped on the lap joint; the relative position between the first movable member and the second movable member is adjusted by a screw rod, and one of the first movable member and the second movable member is in sliding or rolling cooperation with the base.

[0034] A second positioning seat and a second movable member are arranged in the second positioning assembly to achieve rough positioning of the welding plate; further, a first movable member, a second movable member and a screw rod are arranged to achieve fine adjustment of the welding plate based on the rough positioning, so that the welding plate can be accurately aligned with the pole.

[0035] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0036] 1. The support structure provided in the present application can be used in a battery cell module welding system. By arranging at least two first support members on the mounting seat at intervals, the two ends of the liquid cooling plate are respectively placed on the first support surfaces on the same side during operation. Since the first support surface is higher than the surface of the mounting seat, the liquid cooling plate can be placed in the air to avoid the concave and convex structure at the bottom of the liquid cooling plate affecting the stability of placement, and the top surface of the battery cell can be on the same welding surface, which is convenient for the subsequent welding of the pole.

[0037] 2. The stacking tooling provided in the present application can be used in a battery cell module welding system. By arranging a track assembly on the base, and the mounting seat can move relative to the base on the track assembly, multiple mounting seats can be moved closer to and farther away from each other. During work, the mounting seats can be separated to facilitate the installation of the battery cell units. After the installation is completed, the mounting seats can be moved to make the battery cell units move closer to each other and form a battery cell module, which reduces the difficulty of forming the battery cell module and can reduce the dimensional error of the battery cell module; controlling all the first supporting surfaces on the same reference plane can make the top surfaces of the battery cells on the same welding surface, which is convenient for subsequent welding operations.

[0038] 3. The battery cell module welding system provided in the present application can separate the mounting base to facilitate the installation of the battery cell unit during operation by using the stacking tooling as described above. After the installation is completed, the mounting base can be moved to bring the battery cell units closer to each other to form a battery cell module, thereby reducing the difficulty of forming the battery cell module and reducing the dimensional error of the battery cell module. At the same time, the liquid cooling plate can be placed overhead to avoid the concave and convex structure at the bottom of the liquid cooling plate affecting the stability of placement, and the top surface of the battery cell can be on the same welding surface, which is convenient for welding the poles on the battery cell unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a structural schematic diagram of the support structure of the utility model;

[0040] Figure 2 for Figure 1 Detailed drawing of middle section A;

[0041] Figure 3 This is a schematic diagram of the structure of the stacking tooling of the utility model;

[0042] Figure 4 for Figure 3 Detail of middle section B;

[0043] Figure 5 It is a front view of the stacking tool of the utility model;

[0044] Figure 6 It is a structural schematic diagram of the track assembly and the moving seat of the utility model;

[0045] Figure 7 This is a schematic diagram of the structure of the stacking tooling and welding plate of the utility model;

[0046] Figure 8 for Figure 7 Detail of middle section C;

[0047] Fig. 9 It is a side view of the stacking tool and welding plate of the utility model;

[0048] Fig.10 It is a top view of the stacking tool and welding plate of the utility model;

[0049] Fig.11 It is a structural schematic diagram of the welding plate of the utility model;

[0050] Fig.12 It is a front view of the welding plate of the utility model;

[0051] Fig.13 It is a structural schematic diagram of the pressing block of the utility model.

[0052] Markings in the figure: 10-mounting seat; 11-first support member; 12-first support surface; 13-positioning protrusion; 14-second support member; 15-stop block; 20-base; 21-track assembly; 22-moving seat; 23-first support; 24-second support; 25-axis rod; 26-baffle assembly; 30-first positioning seat; 31-first movable member; 32-first groove; 33-second positioning seat; 34-second movable member; 35-second groove; 36-first moving member; 37-second moving member; 38-lapping portion; 39-screw rod; 40-welding plate; 41-first welding hole; 42-compression spring; 43-compression block; 44-second welding hole. DETAILED DESCRIPTION

[0053] The present invention is further described in detail below in combination with test examples and specific implementation methods. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0054] In the description of the specific embodiments of the present invention, unless otherwise specified, the terms indicating the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or the orientation or position relationship of the product / equipment / device of the utility model when it is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the utility model or simplifying the description in the specific embodiments, so that technicians can quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0055] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding devices / components / elements are within the error / deviation range, they can still achieve their functions in the solution of the utility model.

[0056] In addition, the expressions “first”, “second”, “third”, etc. that appear in the terms are merely descriptions used to distinguish the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0057] In addition, in the description of the embodiments of the present invention, "several", "multiple" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0058] In addition, in the description of the technical solution of the utility model, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components.

[0059] Example 1

[0060] See also Figure 1-2 A support structure provided in this embodiment includes a mounting seat 10 , on which at least two first support members 11 are spaced apart, and the first support members 11 have a first support surface 12 higher than the surface of the mounting seat 10 .

[0061] The mounting seat 10 is used to provide a placement basis for the two first support members 11 and to control the relative position between the two, and can be a rod, a plate, a solid structure, a hollow structure, etc.

[0062] The first support member 11 may be a solid structure or a hollow structure, and has a first support surface 12 on its top that is higher than the surface of the mounting seat 10 .

[0063] The first supporting surface 12 may be a plane or a curved surface adapted to the mounting surface of the liquid cooling plate. At least two first supporting surfaces 12 can stably support the liquid cooling plate so that the liquid cooling plate can be placed in the air.

[0064] The support structure provided in the present application can be used in a battery cell module welding system. By arranging at least two first support members 11 on the mounting base 10 at intervals, during operation, the two ends of the liquid cooling plate are respectively placed on the first support surfaces 12 on the same side. Since the first support surface 12 is higher than the surface of the mounting base 10, the liquid cooling plate can be placed in an overhead manner to avoid the concave and convex structure at the bottom of the liquid cooling plate affecting the stability of placement, so that the top surface of the battery cell can be on the same welding surface, which is convenient for the subsequent welding of the poles.

[0065] Example 2

[0066] This embodiment provides a support structure. Based on the embodiment 1, a positioning protrusion 13 or a positioning groove is provided on the first support surface 12. The positioning protrusion 13 or the positioning groove can be used to position the liquid cooling plate along the extension direction of the surface of the mounting seat 10.

[0067] The positioning protrusion 13 is arranged protruding from the first supporting surface 12, and a corresponding groove can be arranged on the mounting surface of the liquid cooling plate to cooperate with the positioning protrusion 13, so that the liquid cooling plate can be quickly aligned with the mounting seat 10 when placed, and play a partial limiting role, which is conducive to reducing the relative offset between the liquid cooling plate and the mounting seat 10.

[0068] The positioning groove is recessed on the first supporting surface 12 . Similarly, a corresponding protrusion may be provided on the mounting surface of the liquid cooling plate to match with the positioning groove.

[0069] Specifically, in this embodiment, a positioning protrusion 13 is provided on the first supporting surface 12 , and the top edge of the positioning protrusion 13 is arc-shaped to facilitate the sliding of the mounting seat 10 .

[0070] At least one second support member 14 is disposed between the two first support members 11 . The second support member 14 is made of a flexible material and can assist in supporting the liquid cooling plate.

[0071] Considering that some liquid cooling plates are relatively long, if two first support members 11 are arranged at both ends of the liquid cooling plate, one or more second support members 14 may be further arranged between the two first support members 11 to assist in supporting the liquid cooling plate and reduce the downward bending amplitude of the middle part thereof.

[0072] The second support member 14 can be rubber, elastomeric rubber, etc. In this embodiment, elastomeric rubber with very low hardness is used, and its top surface can be deformed to adapt to the shape of the bottom of the liquid cooling plate.

[0073] Example 3

[0074] See also Figure 3-6 A stacking tool provided in this embodiment includes a base 20 and at least two supporting structures as described in Example 1 or 2, wherein: a track assembly 21 is provided on the base 20, the track assembly 21 includes at least one track, the mounting seat 10 can move relative to the base 20 on the track assembly 21, two adjacent mounting seats 10 can approach and move away from each other, and all first supporting surfaces 12 are located on the same reference plane.

[0075] The base 20 is used to provide installation support for other components. The specific shape of the base 20 is not limited and can be a plate, a block, a hollow structure, etc.

[0076] The track assembly 21 includes at least one track, and the track can be in a straight line shape, an arc shape, etc.

[0077] Adjacent mounting seats 10 can be separated and gathered together. When separated, it is convenient to install the battery cell unit, and after being placed, they can be gathered together to form a battery cell module.

[0078] The number of mounting seats 10 matches the number of battery cell units in the battery cell module.

[0079] The first supporting surfaces 12 on all mounting seats 10 are located on the same reference plane, which can be a plane or a curved surface, and its shape is adapted to the liquid cooling plate, so that the top surface of the battery cell mounted on the liquid cooling plate is on the same welding surface, thereby facilitating the welding of the pole.

[0080] Specifically, in this embodiment, the welding surface is a plane.

[0081] The stacking tooling provided in the present application can be used in a battery cell module welding system. By setting a track assembly 21 on the base 20, and the mounting seat 10 can move relative to the base 20 on the track assembly 21, multiple mounting seats 10 can be close to and away from each other. During operation, the mounting seats 10 can be separated to facilitate the installation of the battery cell units. After the installation is completed, the mounting seats 10 can be moved to make the battery cell units close to each other and form a battery cell module, which reduces the difficulty of forming the battery cell module and can reduce the dimensional error of the battery cell module; controlling all the first support surfaces 12 to the same reference plane can make the top surface of the battery cell on the same welding surface, which is convenient for subsequent welding operations.

[0082] Example 4

[0083] See also Figure 4 This embodiment provides a stacking tool. Based on the third embodiment, a first positioning component is provided on the base 20 , and the first positioning component is used to position the mounting seat 10 .

[0084] The first positioning assembly can be installed in various positions. Preferably, it can be located at one end or both ends of the mounting base 10 to facilitate manual adjustment.

[0085] The first positioning assembly can position the mounting seat 10 by limiting, snapping, etc.

[0086] The stacking tool provided in this embodiment, by providing a first positioning component for positioning the mounting seat 10, can more accurately control the distance between adjacent battery cell units, reduce the error when the battery cell units are stacked, and help ensure the smooth entry of the battery cell module into the box.

[0087] Preferably, the first positioning assembly includes a first positioning seat 30 and a first movable member 31. The first positioning seat 30 is fixed on the base 20, and the first movable member 31 can move relative to the first positioning seat 30. A first groove 32 is provided on the mounting seat 10, and the first movable member 31 can be inserted into and removed from the first groove 32.

[0088] A hole may be opened on the first positioning seat 30 , and the first movable member 31 is inserted into the hole. The first movable member 31 is extended or retracted relative to the first positioning seat 30 by screwing or pulling, so that the first movable member 31 is inserted into and removed from the first groove 32 .

[0089] The first movable member 31 and the first positioning seat 30 may also be hinged, and the first movable member 31 may be rotated relative to the first positioning seat 30 to allow the first movable member 31 to be inserted into and removed from the first groove 32 .

[0090] The first movable member 31 is inserted into and removed from the first groove 32 , so as to switch the locking and releasing states of the mounting seat 10 .

[0091] Specifically, in this embodiment, the first groove 32 is a V-shaped groove, a hole is opened on the first positioning seat 30, one end of the first movable part 31 is provided with a V-shaped structure adapted to the V-shaped groove, and the other end is provided with a nut, and the V-shaped structure can be extended into or out of the V-shaped groove by screwing the nut.

[0092] One relative movement mode between the base 20 and the mounting seat 10 is: the track is one of a slide rail and a slide groove, the mounting seat 10 is provided with the other of the slide rail and the slide groove, and the slide rail and the slide groove are slidably matched.

[0093] By respectively arranging a slide rail and a slide groove on the base 20 and the mounting base 10, the slide rail is embedded in the slide groove, and the slide rail and the slide groove slide together, the mounting base 10 can move relative to the base 20 on the track assembly 21, thereby facilitating the installation of the battery cell unit and the forming of the battery cell module.

[0094] Another relative movement mode of the base 20 and the mounting seat 10 is: the track is a rolling groove, and the mounting seat 10 is provided with a roller, and the roller and the rolling groove are in rolling cooperation.

[0095] By setting a rolling groove on the base 20, setting a roller on the mounting seat 10, and placing the roller into the rolling groove, the roller and the rolling groove are rolled together, so that the mounting seat 10 can move relative to the base 20 on the track assembly 21, thereby facilitating the installation of the battery cell unit and the forming of the battery cell module.

[0096] Specifically, in this embodiment, the track is a slide rail, a moving seat 22 is provided at the bottom of the mounting seat 10, a slide groove is provided on the moving seat 22, and the moving seat 22 can move on the track assembly 21, thereby driving the mounting seat 10 to move on the track assembly 21.

[0097] An elastic structure is disposed between two adjacent mounting seats 10 .

[0098] The elastic structure may be a spring, an elastic member, etc. The provision of the elastic structure can more conveniently separate two mounting seats 10 that are close together, thereby reducing the difficulty of use and improving efficiency.

[0099] Specifically, in this embodiment, the elastic structure is arranged at both ends of the mounting seat 10, and a first support 23 and a second support 24 can be respectively arranged on two adjacent mounting seats 10. A shaft rod 25 is passed through the first support 23, and a spring is sleeved on the shaft rod 25. When the second support 24 approaches the first support 23, the shaft rod 25 is pushed out, so that the spring is compressed and has a retreating elastic restoring force.

[0100] The stacking tool also includes a baffle assembly 26, which can move relative to the base 20 on the track assembly 21, at least two mounting seats 10 are located between the two baffle assemblies 26, and the baffle assembly 26 is detachably connected to the outermost mounting seat 10.

[0101] The baffle assembly 26 includes at least one baffle.

[0102] The baffle assembly 26 is detachably connected to the outermost mounting seat 10, such as a bolt connection. When the baffle assembly 26 is fixedly connected to the mounting seat 10, the baffle can block the mounting seat 10 from moving relative to the base 20. When the baffle assembly 26 is separated from the mounting seat 10, the baffle assembly 26 can be removed to free up the installation space of the lifting structure, thereby facilitating the subsequent lifting of the battery cell module.

[0103] The matching manner of the baffle assembly 26 and the base 20 may refer to the mounting base 10 and the base 20 .

[0104] The number of mounting seats 10 between the two baffle assemblies 26 matches the number of battery cell units in the battery cell module.

[0105] The stacking tool provided in this embodiment can more conveniently push and gather the battery cell units by respectively arranging baffle assemblies 26 on both sides of the mounting base 10, thereby reducing the difficulty of forming the battery cell module and reducing its dimensional error; the baffle assembly 26 is detachably connected to the mounting base 10, and during operation, the battery cell module can be conveniently hoisted by removing the mounting base 10.

[0106] At least two stoppers 15 are provided on one side of the mounting seat 10 in the direction of movement relative to the base 20 , and the tops of the stoppers 15 are higher than the first supporting surface 12 .

[0107] The stopper 15 can further limit the battery cell units on the mounting seat 10. During operation, the mounting seats 10 can be brought closer to each other by pushing the battery cell units, thereby simplifying the operation.

[0108] Specifically, the stopper 15 may be set to be L-shaped; and the stopper 15 may not be set on the two outermost mounting seats 10 .

[0109] Example 5

[0110] See also Figure 7-10 The present embodiment provides a battery cell module welding system, comprising a battery cell unit, a welding assembly and a stacking tool as described in Example 3 or 4, wherein: the battery cell unit comprises a liquid cooling plate and at least one battery cell, a mounting surface is provided on the liquid cooling plate, the mounting surface cooperates with the first supporting surface 12, so that the battery cell unit is placed overhead on the mounting seat 10, and the welding assembly is used to weld the poles on the battery cell.

[0111] The liquid cooling plate is a plate with liquid cooling function, which can reduce the surrounding temperature by absorbing heat through the medium, so that the battery and other structures can maintain a low temperature when in use.

[0112] In this embodiment, the liquid cooling plate is a T-shaped liquid cooling plate, on which at least one battery cell is installed. The battery cell, the liquid cooling plate and related accessories constitute a battery cell unit, and the battery cell unit is installed on the mounting seat 10.

[0113] One or more battery cell units and related accessories can form a battery cell module.

[0114] The liquid cooling plate is provided with a mounting surface matched with the first supporting surface 12, and the position of the mounting surface is matched with the first supporting surface 12; in this embodiment, the mounting surface is located at both ends of the liquid cooling plate, and through the cooperation between the mounting surface and the first supporting surface 12, the liquid cooling plate can be stably mounted on the mounting base 10.

[0115] The welding assembly is used to weld the poles on the battery cells. By stacking the stacking tools, the poles on the battery cell modules can be welded uniformly, which improves work efficiency.

[0116] The battery cell module welding system provided in the present application, by using the stacking tooling as described above, can separate the mounting seat 10 during operation to facilitate the installation of the battery cell units. After the installation is completed, the mounting seat 10 can be moved to bring the battery cell units closer to each other and form a battery cell module, thereby reducing the difficulty of forming the battery cell module and reducing the dimensional error of the battery cell module. At the same time, the liquid cooling plate can be placed overhead to avoid the concave and convex structure at the bottom of the liquid cooling plate affecting the stability of placement, and the top surface of the battery cell can be on the same welding surface, which is convenient for welding the poles on the battery cell units.

[0117] Example 6

[0118] See also Figure 11-13 This embodiment provides a battery cell module welding system. Based on Embodiment 5, the welding assembly includes a welding plate 40. The welding plate 40 is located on the side of the battery cell unit away from the mounting base 10. At least two first welding holes 41 are provided on the welding plate 40. The first welding holes 41 are aligned with the poles.

[0119] The welding plate 40 may be a plate structure, on which a first welding hole 41 is opened for welding the pole.

[0120] The number of the first welding holes 41 is greater than or equal to the number of the poles on the welding surface, and the spacing between the first welding holes 41 is adapted to the spacing between the poles, so that the first welding holes 41 can be aligned with each pole.

[0121] The welding plate 40 may be made of copper, or the periphery of the first welding hole 41 may be made of copper.

[0122] The welding plate 40 can be detachably connected to the base 20 and removed before and after welding to free up installation and hoisting space.

[0123] The welding method can be laser welding.

[0124] Preferably, a clamping assembly is provided on one side of the welding plate 40 close to the mounting seat 10, and the clamping assembly includes a clamping spring 42 and a clamping block 43. The clamping spring 42 is located between the welding plate 40 and the clamping block 43. The clamping block 43 is provided with a second welding hole 44, and the second welding hole 44 is aligned with the first welding hole 41.

[0125] By providing the clamping spring 42 and the clamping block 43 , during operation, the clamping block 43 abuts against the battery cell unit, and the clamping spring 42 is compressed and applies thrust to the clamping block 43 , thereby further ensuring the stability of the battery cell unit and improving the welding quality.

[0126] See also Figure 8 Preferably, a second positioning component is provided on the base 20 , and the second positioning component is used to position the welding plate 40 .

[0127] There are various installation positions for the second positioning assembly, and the second positioning assembly can be located at one end or both ends of the welding plate 40 .

[0128] The second positioning assembly can position the welding plate 40 by limiting, snapping, etc.

[0129] Further preferably, the second positioning assembly includes a second positioning seat 33 and a second movable member 34, the second positioning seat 33 is fixed on the base 20, and the second movable member 34 can move relative to the second positioning seat 33; the second positioning assembly also includes a first movable member 36 and a second movable member 37 that can slide relative to each other, the first movable member 36 is provided with a second groove 35, the second movable member 34 can be inserted into or out of the second groove 35, the second movable member 37 has a lap joint 38, and the welding plate 40 is overlapped on the lap joint 38; a screw rod 39 is also installed between the first movable member 36 and the second movable member 37 for adjusting the relative positions of the two, and one of the first movable member 36 and the second movable member 37 is in sliding or rolling cooperation with the base 20.

[0130] The second positioning seat 33 and the second movable member 34 may be arranged in a manner similar to the first positioning seat 30 and the first movable member 31 , except that the second groove 35 is arranged on the first movable member 36 instead of being directly arranged on the welding plate 40 .

[0131] The shapes of the first moving member 36 and the second moving member 37 are not limited in this embodiment, and may be solid or hollow blocks, plates, frame structures, etc.

[0132] The first moving member 36 and the second moving member 37 may be provided with a slide rail and a slide groove respectively to achieve relative movement between the two.

[0133] The second moving member 37 has an overlapping portion 38 which can be used for overlapping the welding plate 40 . A V-shaped groove can be provided on the overlapping portion 38 to achieve accurate placement of the welding plate 40 .

[0134] One of the first moving member 36 and the second moving member 37 is in sliding or rolling cooperation with the base 20 , and the sliding or rolling direction is parallel to the relative movement direction of the mounting seat 10 .

[0135] The arrangement of the sliding or rolling can refer to the arrangement of the base 20 and the mounting base 10 in the fourth embodiment.

[0136] One arrangement of the first moving member 36 and the second moving member 37 is as follows: the first moving member 36 is mounted on the base 20 and slides or rolls with the base 20 , the second moving member 34 can limit the first moving member 36 , and the second moving member 37 is mounted on the first moving member 36 .

[0137] Another arrangement of the first moving member 36 and the second moving member 37 is as follows: the second moving member 37 is mounted on the base 20 and slides or rolls with the base 20 , the first moving member 36 is mounted on the second moving member 37 , and the second moving member 34 can limit the first moving member 36 .

[0138] Specifically, the second setting mode is preferred in this embodiment.

[0139] Regardless of the setting method, a screw rod 39 can be set between the first moving part 36 and the second moving part 37. The screw rod 39 can pass through the moving part connected to the base 20 and abut against another moving part. The relative positions of the two moving parts can be adjusted by screwing the screw rod 39, thereby achieving fine-tuning of the welding plate 40.

[0140] The battery cell module welding system provided in this embodiment is provided with a second positioning seat 33 and a second movable member 34 in the second positioning assembly, which can realize the rough positioning of the welding plate 40; further, a first movable member 36, a second movable member 37 and a screw rod 39 are provided, which can realize the fine adjustment of the welding plate 40 on the basis of the rough positioning, so that the welding plate 40 can be accurately aligned with the pole.

[0141] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stacking tool, characterized in that: The invention comprises a base (20) and at least two supporting structures, wherein the supporting structures comprise a mounting seat (10), at least two first supporting members (11) are arranged at intervals on the mounting seat (10), and the first supporting members (11) have a first supporting surface (12) higher than the surface of the mounting seat (10); wherein: A track assembly (21) is provided on the base (20), the track assembly (21) comprising at least one track, the mounting seat (10) can move on the track assembly (21) relative to the base (20), two adjacent mounting seats (10) can move closer to or farther from each other, and all the first supporting surfaces (12) are located on the same reference plane.

2. The stacking tool according to claim 1, characterized in that: A positioning protrusion (13) or a positioning groove is provided on the first supporting surface (12), and the positioning protrusion (13) or the positioning groove can be used to position the liquid cooling plate along the extension direction of the surface of the mounting seat (10); and / or, At least one second support member (14) is arranged between the two first support members (11); the second support member (14) is made of a flexible material; and the second support member (14) is capable of assisting in supporting the liquid cooling plate.

3. The stacking tool according to claim 1, characterized in that: A first positioning component is provided on the base (20), and the first positioning component is used to position the mounting seat (10); The first positioning assembly comprises a first positioning seat (30) and a first movable member (31); the first positioning seat (30) is fixed on the base (20); and the first movable member (31) is capable of moving relative to the first positioning seat (30); The mounting seat (10) is provided with a first groove (32), and the first movable member (31) can be inserted into and removed from the first groove (32).

4. The stacking tool according to claim 1, characterized in that: The track is one of a slide rail and a slide groove, the mounting seat (10) is provided with the other of the slide rail and the slide groove, and the slide rail and the slide groove are slidably matched; or, The track is a rolling groove, and a roller is provided on the mounting seat (10), and the roller is in rolling engagement with the rolling groove.

5. The stacking tool according to claim 1, characterized in that: An elastic structure is provided between two adjacent mounting seats (10); and / or, The stacking tool also includes a baffle assembly (26), wherein the baffle assembly (26) is movable on the track assembly (21) relative to the base (20), at least two of the mounting seats (10) are located between two of the baffle assemblies (26), and the baffle assembly (26) is detachably connected to the outermost mounting seat (10).

6. A battery module welding system, characterized in that: It comprises a battery cell unit, a welding assembly and a stacking tool as claimed in any one of claims 1 to 5, wherein: the battery cell unit comprises a liquid cooling plate and at least one battery cell, the liquid cooling plate is provided with a mounting surface, the mounting surface cooperates with the first supporting surface (12), so that the battery cell unit is suspended on the mounting seat (10), and the welding assembly is used for welding the poles on the battery cell.

7. The battery cell module welding system according to claim 6, characterized in that: The welding assembly comprises a welding plate (40), the welding plate (40) being located on a side of the battery cell unit facing away from the mounting seat (10), the welding plate (40) being provided with at least two first welding holes (41), the first welding holes (41) being aligned with the pole.

8. The battery cell module welding system according to claim 7, characterized in that: A clamping assembly is provided on one side of the welding plate (40) close to the mounting seat (10), the clamping assembly comprising a clamping spring (42) and a clamping block (43), the clamping spring (42) being located between the welding plate (40) and the clamping block (43), the clamping block (43) being provided with a second welding hole (44), the second welding hole (44) being aligned with the first welding hole (41).

9. The battery cell module welding system according to claim 7, characterized in that: A second positioning component is provided on the base (20), and the second positioning component is used to position the welding plate (40); The second positioning assembly comprises a second positioning seat (33) and a second movable member (34); the second positioning seat (33) is fixed on the base (20); and the second movable member (34) is movable relative to the second positioning seat (33); The second positioning assembly further comprises a first moving member (36) and a second moving member (37) capable of relative movement, the first moving member (36) being provided with a second groove (35), the second moving member (34) being capable of being inserted into and removed from the second groove (35), the second moving member (37) having an overlapping portion (38), the welding plate (40) being overlapped on the overlapping portion (38); The relative position between the first moving member (36) and the second moving member (37) is adjusted via a screw rod (39), and one of the first moving member (36) and the second moving member (37) is in sliding or rolling cooperation with the base (20).

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