Transfer equipment and transfer system of battery module

Abstract

The utility model discloses transfer equipment and a transfer system for a battery module. The transfer equipment comprises a feeding device and a discharging device, the feeding device comprises a feeding robot and a feeding grabbing structure connected with the feeding robot, and the feeding device is used for carrying a battery module to be welded to a welding station; the discharging device comprises a discharging robot and a discharging grabbing structure connected with the discharging robot. The discharging device is used for carrying the welded battery modules located at the welding station to the next station. The automation degree of the battery module production line is improved, and the labor cost is reduced.

Description

Technical Field

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

[0002] Battery cells are widely used in electronic devices, such as mobile phones, laptop computers, electric vehicles, electric cars, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes, and electric tools, etc. Battery cells can include nickel-cadmium battery cells, nickel-hydrogen battery cells, lithium-ion battery cells, and secondary alkaline zinc-manganese battery cells, etc.

[0003] A battery module is composed of multiple battery cells. Currently, the transportation of battery modules between different workstations has high labor costs, which has become an urgent problem that needs to be solved. Utility Model Content

[0004] The embodiments of the present application provide a battery module transfer device and a battery module transfer system, which can improve the production efficiency of batteries.

[0005] In the first aspect, an embodiment of the present application provides a battery module transfer device, including a loading device and an unloading device, the loading device including a loading robot and a loading and grasping structure connected to the loading robot, the loading device is used to transport the battery module to be welded to the welding station; the unloading device includes a unloading robot and a unloading and grasping structure connected to the unloading robot, the unloading device is used to transport the battery module that has been welded at the welding station to the next station.

[0006] In the above scheme, the loading and grabbing structure is installed on the loading robot, the loading and grabbing mechanism grabs the battery module to be welded, and then the loading robot moves to move the battery module to be welded to the welding station. After the battery module is welded, the unloading and grabbing structure installed on the unloading robot grabs the welded battery module, and then the unloading robot moves the welded battery module to the next station, which improves the automation of the battery module production line and reduces the labor cost.

[0007] In some embodiments, the loading and grabbing structure includes a first grabbing component and a second grabbing component, the first grabbing component is used to grab a single-row battery module, and the second grabbing component is used to grab a double-row battery module.

[0008] In the above scheme, when a single-row battery module needs to be grasped, the first grasping component is installed on the loading robot; when a double-row battery module needs to be grasped, the second grasping component is installed on the loading robot to achieve compatibility of single-row and double-row battery module loading.

[0009] In some embodiments, the first grasping assembly includes a first bracket and two first clamping plates, the first bracket is used to connect to the loading robot; the two first clamping plates are respectively slidably connected to the first bracket along the first direction, and are used to clamp the side plates of the battery module along the first direction; wherein the first direction is the width direction of the battery module.

[0010] In the above scheme, the battery module can be clamped along the width direction of the battery module by two first clamping plates, and the first clamping plates can slide relative to the first bracket along the first direction, so as to clamp battery modules of different widths, thereby improving the compatibility of the first grabbing component.

[0011] In some embodiments, the first grasping assembly further includes two first clamping jaws, which are respectively slidably connected to the first bracket along the second direction and are used to clamp the end plate of the battery module along the second direction; wherein the second direction is the length direction of the battery module.

[0012] In the above scheme, the battery module can be clamped along the length direction of the battery module by the two first clamps, and the first clamps can slide relative to the second bracket along the second direction, so as to clamp battery modules of different lengths, thereby improving the compatibility of the first grabbing component.

[0013] In some embodiments, the first grasping assembly also includes a side panel clamp, which includes a clamp block driving member and two first clamp blocks. The two first clamp blocks are connected to the clamp block driving member, and the clamp block driving member is used to drive the two first clamp blocks to move closer to or away from each other so that the side panel of the battery module is clamped between the two first clamp blocks.

[0014] In the above solution, by clamping the side plate of the battery module between the two first clamping blocks, the side plate can be prevented from falling to a certain extent, thereby improving the gripping reliability of the first gripping assembly.

[0015] In some embodiments, the second grasping assembly includes a second bracket and a second clamping plate, the second bracket is used to connect to the loading robot; the second clamping plate includes a first sub-plate, a second sub-plate, a third sub-plate and a fourth sub-plate which are sequentially slidably connected to the second bracket along the first direction, the first sub-plate and the second sub-plate are used to clamp the side plates of the first row of battery modules along the first direction, and the third sub-plate and the fourth sub-plate are used to clamp the side plates of the second row of battery modules along the first direction; wherein the first direction is the width direction of the battery module.

[0016] In the above scheme, the first row of battery modules is clamped by the first sub-board and the second sub-board, and the second row of battery modules is clamped by the third sub-board and the fourth sub-board, so as to realize the handling of double-row battery modules. Moreover, the width between the first sub-board and the second sub-board, and the width between the third sub-board and the fourth sub-board can be adjusted, so as to adapt to double-row battery modules of different widths, and improve the compatibility of the second grabbing component.

[0017] In some embodiments, the second grasping assembly also includes four second jaws, two of which are slidably connected to the second bracket along the second direction, and are used to clamp the end plates of the first row of battery modules along the second direction; the other two second jaws are slidably connected to the second bracket along the second direction, and are used to clamp the end plates of the second row of battery modules along the second direction; wherein the second direction is the length direction of the battery module.

[0018] In the above scheme, the four second clamps can clamp the battery modules of the first row and the battery modules of the second row at the same time, and the width between the two second clamps can be adjusted to accommodate double-row battery modules of different lengths, thereby improving the compatibility of the second grasping component.

[0019] In some embodiments, the second grasping assembly also includes a middle partition clamp, and the middle partition clamp is provided on the side of the second sub-plate facing the third sub-plate and on the side of the third sub-plate facing the second sub-plate. The middle partition clamp is used to clamp the middle partition between the battery modules in the first row and the battery modules in the second row.

[0020] In the above solution, the middle partition clamp can clamp the middle partition of the double-row battery module for insulation, thereby further improving the gripping reliability of the second gripping assembly.

[0021] In some embodiments, the material unloading grasping structure includes a third bracket and two third clamps, the third bracket is used to connect to the unloading robot; the two third clamps are respectively slidably connected to the third bracket along the first direction, and are used to clamp the side panels of the single-row or double-row battery modules along the first direction; wherein the first direction is the width direction of the battery module.

[0022] In the above scheme, the unloading gripper can grab both the welded single-row battery module and the welded double-row battery module, which improves the compatibility of the unloading gripping structure.

[0023] In some embodiments, the material unloading grabbing structure also includes two third clamps, which are respectively slidably connected to the third bracket along the second direction, and are used to clamp the end plates of the single-row or double-row battery modules along the second direction; wherein the second direction is the length direction of the battery module.

[0024] In the above solution, the side plate and the end plate of the battery module can be clamped by the cooperation between the third clamping claw and the third clamping plate, thereby improving the gripping stability of the blanking gripping structure.

[0025] In a second aspect, an embodiment of the present application further provides a transport system, comprising a transport device for a battery module according to any of the above-mentioned embodiments.

[0026] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A schematic diagram of a vehicle according to some embodiments of the present application;

[0029] Figure 2 A schematic diagram of the structure of a battery in some embodiments of the present application;

[0030] Figure 3 This is a schematic diagram of the structure of a battery module of some embodiments of the present application;

[0031] Figure 4 A schematic diagram of a transport system according to some embodiments of the present application;

[0032] Figure 5 A schematic diagram of the structure of a first grabbing assembly in some embodiments of the present application;

[0033] Figure 6 A partial structural schematic diagram of a first grabbing assembly in some embodiments of the present application;

[0034] Figure 7 A schematic diagram of the structure of a second grabbing assembly in some embodiments of the present application;

[0035] Figure 8 A partial structural schematic diagram of a second grabbing assembly in some embodiments of the present application;

[0036] Fig. 9 This is a schematic diagram of the structure of the material feeding and grabbing structure of some embodiments of the present application.

[0037] The figures are as follows:

[0038] 1000, vehicle; 100, battery; 200, controller; 300, motor; 10, upper cover; 20, battery cell; 30, box; 400, battery module; 500, feeding device; 50, feeding robot; 60, feeding grasping structure; 61, first grasping assembly; 611, first bracket; 612, first clamping plate; 613, first convex strip; 614, first clamping claw; 615, first convex block; 616, side plate clamping member; 617, clamping block driving member; 618, first clamping block; 62, second grasping assembly; 6 21. second bracket; 622. second clamping plate; 623. first sub-plate; 624. second sub-plate; 625. third sub-plate; 626. fourth sub-plate; 627. second convex strip; 628. second clamping jaw; 629. second protrusion; 630. middle partition plate clamp; 600. unloading device; 70. unloading robot; 80. unloading grasping structure; 81. third bracket; 82. third clamping plate; 83. third convex strip; 84. third clamping jaw; 85. third protrusion; 700. welding station; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0039] The following detailed description and drawings of the embodiments of the present application are used to illustrate the principles of the present application, but cannot be used to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

[0040] In the description of the present application, it should be noted that, unless otherwise specified, "multiple" means more than two; the terms "upper", "lower", "left", "right", "inside", "outside", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly vertical, but is within the allowable error range. "Parallel" is not strictly parallel, but is within the allowable error range.

[0041] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0042] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0043] In the present application, battery cells may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries or magnesium-ion batteries, etc., and the embodiments of the present application do not limit this. Battery cells may be cylindrical, flat, rectangular or other shapes, etc., and the embodiments of the present application do not limit this. Battery cells are generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells and soft-pack battery cells, and the embodiments of the present application do not limit this.

[0044] The battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity. For example, the battery mentioned in the present application may include a battery module or a battery pack. The battery generally includes a box for encapsulating one or more battery cells. The box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells.

[0045] The battery cell includes an electrode assembly and an electrolyte. The electrode assembly is composed of a positive electrode sheet, a negative electrode sheet and a separator. The battery cell mainly relies on the movement of metal ions between the positive electrode sheet and the negative electrode sheet to work. The positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer. The positive electrode active material layer is coated on the surface of the positive electrode current collector. The current collector not coated with the positive electrode active material layer protrudes from the current collector coated with the positive electrode active material layer. The current collector not coated with the positive electrode active material layer is stacked as a positive electrode tab. Taking lithium-ion batteries as an example, the material of the positive electrode current collector can be aluminum, and the positive electrode active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganese oxide. The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer. The negative electrode active material layer is coated on the surface of the negative electrode current collector. The current collector not coated with the negative electrode active material layer protrudes from the current collector coated with the negative electrode active material layer. The current collector not coated with the negative electrode active material layer is stacked as a negative electrode tab. The material of the negative electrode current collector can be copper, and the negative electrode active material can be carbon or silicon. The material of the isolation film may be PP (polypropylene) or PE (polyethylene), etc. In addition, the electrode assembly may be a winding structure or a stacked structure, but the embodiments of the present application are not limited thereto.

[0046] The battery cells disclosed in the embodiments of the present application can be used in, but not limited to, electrical devices such as vehicles, ships or aircraft. A power supply system comprising the battery cells and batteries disclosed in the present application can be used to form the electrical device, which is beneficial to improving the stability of battery performance and battery life.

[0047] The embodiment of the present application provides an electric device using a battery as a power source, and the electric device may be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc. The electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc. The spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0048] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device according to an embodiment of the present application.

[0049] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle 1000, and the battery 100 may be provided at the bottom, head or tail of the vehicle 1000. The battery 100 may be used to power the vehicle 1000, for example, the battery 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery 100 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0050] In some embodiments of the present application, the battery 100 can not only serve as an operating power source for the vehicle 1000, but also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0051] Please refer to Figure 2 , Figure 2An exploded view of a battery 100 provided in some embodiments of the present application. The battery 100 includes a battery box and a battery cell 20. In some embodiments, the battery box may include an upper cover 10 and a box body 30, the upper cover 10 and the box body 30 cover each other, and the upper cover 10 and the box body 30 jointly define a storage space for accommodating the battery cell 20. The box body 30 may be a hollow structure with one end open, and the upper cover 10 may be a plate-like structure, and the upper cover 10 covers the open side of the box body 30, so that the upper cover 10 and the box body 30 jointly define a storage space; the upper cover 10 and the box body 30 may also be hollow structures with one side open, and the open side of the upper cover 10 covers the open side of the box body 30. Of course, the box body formed by the upper cover 10 and the box body 30 may be in a variety of shapes, such as a cylinder, a cuboid, etc.

[0052] Figure 3 This is a schematic diagram of the structure of the battery module of some embodiments of the present application. In the battery 100, there can be multiple battery cells 20, and the multiple battery cells 20 can be connected in series, in parallel, or in mixed connection. Mixed connection means that the multiple battery cells 20 are both connected in series and in parallel. The multiple battery cells 20 can be directly connected in series, in parallel, or in mixed connection, and then the whole formed by the multiple battery cells 20 is accommodated in the box; of course, the battery 100 can also be a battery module formed by connecting multiple battery cells 20 in series, in parallel, or in mixed connection, and then the multiple battery modules are connected in series, in parallel, or in mixed connection to form a whole, and are accommodated in the box. The battery 100 may also include other structures. For example, the battery 100 may also include a confluence component for realizing electrical connection between the multiple battery cells 20.

[0053] Each battery cell 20 can be a secondary battery or a primary battery, or a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 can be cylindrical, flat, rectangular, or in other shapes.

[0054] At present, the operation of battery modules between different stations, such as the battery module from the assembly station to the welding station, and then to the packaging station, is a very important link in the battery module assembly process. However, the operation of battery modules generally requires the use of external lifting equipment, which requires wire pulling and manpower configuration, increasing labor costs.

[0055] In view of this, the present application provides a technical solution, by installing a loading and grabbing structure on a loading robot, the loading and grabbing mechanism grabs the battery module to be welded, and then the loading robot moves to realize the transportation of the battery module to be welded to the welding station. After the battery module is welded, the unloading and grabbing structure installed on the unloading robot grabs the welded battery module, and then the unloading robot transports the welded battery module to the next station, thereby improving the automation degree of the battery module production line and reducing the labor cost.

[0056] Figure 4 Schematic diagram of the transport system of some embodiments of the present application. Figure 4 As shown, in the first aspect, an embodiment of the present application provides a transfer device for a battery module 400, including a loading device 500 and a unloading device 600, wherein the loading device 500 includes a loading robot 50 and a loading grasping structure 60 connected to the loading robot 50, and the loading device 500 is used to transport the battery module 400 to be welded to a welding station 700; the unloading device 600 includes a unloading robot 70 and a unloading grasping structure 80 connected to the unloading robot 70, and the unloading device 600 is used to transport the battery module 400 that has been welded at the welding station 700 to the next station.

[0057] The battery module 400 may be a single-row battery module 400 or a double-row battery module 400. The single-row battery module 400 includes a row of battery cells 20 arranged in sequence and connected to each other. These battery cells 20 may be identical in model, specification, etc., or may have differences, such as a single-row double-piece battery module 400. The battery module 400 is provided with side plates on opposite sides along the first direction X, and the battery module 400 is provided with end plates on opposite sides along the second direction Y. The first direction X is the width direction of the battery module 400, and the second direction Y is the length direction of the battery module 400. The end plate can be fixed to the battery cell 20 by pasting, clamping, etc. At the welding station 700, the side plate and the end plate need to be welded so that the side plate and the end plate are fixed.

[0058] The loading and grabbing structure 60 and the unloading and grabbing structure 80 may include grippers, clamps, claws and other components, respectively. The loading and grabbing structure 60 may be connected to the loading robot 50 through a quick-change plate. The loading robot 50 can grab the battery module 400 from the origin to the material picking position. After the loading robot 50 grabs the battery module 400, it returns to the origin and waits. The welding fixture on the welding station 700 opens and requests the loading robot 50 to place the battery module 400. The loading robot 50 goes to the welding station 700 to place the module. The loading and grabbing structure 60 opens and places the battery module 400 in the welding fixture of the welding station 700. After welding the side panels and end panels of the battery module 400, the welding robot returns to the origin. The welding fixture is released and the unloading robot 70 is requested to take the battery module 400. The unloading robot 70 moves to the welding station 700. The unloading grasping structure 80 grasps the welded battery module 400. The unloading robot 70 moves the battery module 400 to the next station.

[0059] In the above scheme, the loading and grabbing structure 60 is installed on the loading robot 50, the loading and grabbing mechanism grabs the battery module 400 to be welded, and then the loading robot 50 moves to realize the transportation of the battery module 400 to be welded to the welding station 700. After the welding of the battery module 400 is completed, the unloading and grabbing structure 80 installed on the unloading robot 70 grabs the welded battery module 400, and then the unloading robot 70 transports the welded battery module 400 to the next station, thereby improving the automation degree of the battery module 400 production line and reducing the labor cost.

[0060] In some embodiments, the loading and grabbing structure 60 includes a first grabbing component 61 and a second grabbing component 62 . The first grabbing component 61 is used to grab a single-row battery module 400 , and the second grabbing component 62 is used to grab a double-row battery module 400 .

[0061] The first grabbing assembly 61 and the second grabbing assembly 62 can be connected to the loading robot 50 respectively through a quick-change plate, and can be quickly replaced according to the type of the battery module 400.

[0062] In the above scheme, when it is necessary to grasp a single-row battery module 400, the first grasping component 61 is installed on the loading robot 50; when it is necessary to grasp a double-row battery module 400, the second grasping component 62 is installed on the loading robot 50 to achieve compatibility with the loading of single-row and double-row battery modules 400.

[0063] Figure 5 Schematic diagram of the structure of the first grabbing assembly in some embodiments of the present application. Figure 5 As shown, in some embodiments, the first grasping assembly 61 includes a first bracket 611 and two first clamping plates 612, the first bracket 611 is used to connect with the loading robot 50; the two first clamping plates 612 are respectively slidably connected to the first bracket 611 along the first direction X, and are used to clamp the side panels of the battery module 400 along the first direction X; wherein the first direction X is the width direction of the battery module 400.

[0064] A slide rail extending along the first direction X may be provided on the first bracket 611, and a slider slidably connected to the slide rail may be provided on the upper side of the first clamping plate 612, and the first clamping plate 612 may be driven to move along the first direction X by sliding of the slider. The movement of the first clamping plate 612 may be achieved by manual adjustment or by driving of a cylinder, a hydraulic cylinder, a motor, or the like.

[0065] An insulating plate may be provided on one side of the first clamping plate 612 facing the battery module 400 to reduce the danger caused by leakage of the battery 100. A first convex strip 613 is provided on one side of the first clamping plate 612 away from the first bracket 611. The first convex strip 613 is used to cover the bottom of the battery module 400 and contact the bottom of the battery module 400 to reduce the risk of the battery module 400 falling.

[0066] In the above scheme, the battery module 400 can be clamped along the width direction of the battery module 400 by the two first clamping plates 612, and the first clamping plates 612 can slide relative to the first bracket 611 along the first direction X, so as to clamp battery modules 400 of different widths, thereby improving the compatibility of the first grabbing component 61.

[0067] In some embodiments, the first grabbing assembly 61 also includes two first clamps 614, which are respectively slidably connected to the first bracket 611 along the second direction Y, and are used to clamp the end plate of the battery module 400 along the second direction Y; wherein the second direction Y is the length direction of the battery module 400.

[0068] A slide rail extending along the second direction Y may be provided on the first bracket 611, and a slider slidably connected to the slide rail may be provided on the upper side of the first clamping jaw 614, and the first clamping jaw 614 may be driven to move along the second direction Y by sliding of the slider. The movement of the first clamping jaw 614 may be achieved by manual adjustment or by driving of a cylinder, a hydraulic cylinder, a motor, or the like.

[0069] An insulating portion may be provided on the side of the first clamp 614 facing the battery module 400 to reduce the danger caused by leakage of the battery 100. A first protrusion 615 is provided on the side of the first clamp 614 away from the first bracket 611. The first protrusion 615 is used to cover the bottom of the battery module 400 and contact the bottom of the battery module 400 to reduce the risk of the battery module 400 falling.

[0070] In the above scheme, the battery module 400 can be clamped along the length direction of the battery module 400 by the two first clamps 614, and the first clamps 614 can slide relative to the second bracket 621 along the second direction Y, so as to clamp battery modules 400 of different lengths, thereby improving the compatibility of the first grabbing component 61.

[0071] Figure 6 Schematic diagram of the partial structure of the first grabbing assembly in some embodiments of the present application. Figure 6As shown, in some embodiments, the first grasping assembly 61 also includes a side panel clamp 616, and the side panel clamp 616 includes a clamp block driving member 617 and two first clamps 618. The two first clamps 618 are connected to the clamp block driving member 617, and the clamp block driving member 617 is used to drive the two first clamps 618 to move closer to or away from each other so that the side panel of the battery module 400 is clamped between the two first clamps 618.

[0072] The clamp block driving member 617 is disposed on the first bracket 611, and the clamp block driving member 617 can be a cylinder, a hydraulic cylinder or a motor, etc. Since the side plate and the end plate are not welded when the feeding device 500 grabs the battery module 400, in order to operate the side plate and the battery cell 20 more stably, the embodiment of the present application clamps the side plate through the two first clamp blocks 618 of the side plate clamping member 616 to reduce the probability of the side plate falling.

[0073] Specifically, when the first grasping assembly 61 grasps the battery module 400, the clamping side panel drives the two first clamps 618 to move closer to each other to clamp the side panel; then the loading robot 50 moves the battery module 400 to the welding station 700, and the clamp driving component 617 drives the two first clamps 618 away from each other to loosen the side panel.

[0074] In the above solution, by clamping the side plate of the battery module 400 between the two first clamping blocks 618 , the side plate can be prevented from falling to a certain extent, thereby improving the gripping reliability of the first gripping component 61 .

[0075] Figure 7 Schematic diagram of the structure of the second grabbing assembly in some embodiments of the present application. Figure 7 As shown, in some embodiments, the second grasping assembly 62 includes a second bracket 621 and a second clamping plate 622, and the second bracket 621 is used to connect to the loading robot 50; the second clamping plate 622 includes a first sub-plate 623, a second sub-plate 624, a third sub-plate 625 and a fourth sub-plate 626 which are sequentially slidably connected to the second bracket 621 along the first direction X, the first sub-plate 623 and the second sub-plate 624 are used to clamp the side plates of the first row of battery modules 400 along the first direction X, and the third sub-plate 625 and the fourth sub-plate 626 are used to clamp the side plates of the second row of battery modules 400 along the first direction X; wherein the first direction X is the width direction of the battery module 400.

[0076] A plurality of slide rails extending along the first direction X may be provided on the second bracket 621, and sliders slidably connected to the corresponding slide rails may be provided on the upper sides of the first sub-plate 623, the second sub-plate 624, the third sub-plate 625, and the fourth sub-plate 626, respectively, so that the first sub-plate 623, the second sub-plate 624, the third sub-plate 625, and the fourth sub-plate 626 are driven to move along the first direction X through the sliding of the sliders. The movement of the first sub-plate 623, the second sub-plate 624, the third sub-plate 625, and the fourth sub-plate 626 may be achieved by manual adjustment or by cylinder, hydraulic cylinder, motor drive, or the like.

[0077] Insulating plates may be provided on the sides of the first sub-board 623, the second sub-board 624, the third sub-board 625 and the fourth sub-board 626 facing the battery module 400 to reduce the danger caused by leakage of the battery 100. Second convex strips 627 may be provided on the sides of the first sub-board 623, the second sub-board 624, the third sub-board 625 and the fourth sub-board 626 away from the first bracket 611. The second convex strips 627 are used to cover the bottom of the battery module 400 and contact the bottom of the battery module 400 to reduce the risk of the battery module 400 falling.

[0078] In the above scheme, the first row of battery modules 400 are clamped by the first sub-plate 623 and the second sub-plate 624, and the second row of battery modules 400 are clamped by the third sub-plate 625 and the fourth sub-plate 626, so as to realize the transportation of double-row battery modules 400. Moreover, the width between the first sub-plate 623 and the second sub-plate 624, and the width between the third sub-plate 625 and the fourth sub-plate 626 can be adjusted, so as to adapt to double-row battery modules 400 of different widths, and improve the compatibility of the second grabbing component 62.

[0079] In some embodiments, the second grasping assembly 62 also includes four second clamps 628, two of which are slidably connected to the second bracket 621 along the second direction Y, and are used to clamp the end plates of the first row of battery modules 400 along the second direction Y; the other two second clamps 628 are slidably connected to the second bracket 621 along the second direction Y, and are used to clamp the end plates of the second row of battery modules 400 along the second direction Y; wherein the second direction Y is the length direction of the battery module 400.

[0080] Two of the second clamping jaws 628 cooperate with the first sub-plate 623 and the second sub-plate 624 to grab the first row of battery modules 400 , and the other two second clamping jaws 628 cooperate with the third sub-plate 625 and the fourth sub-plate 626 to grab the second row of battery modules 400 .

[0081] A slide rail extending along the second direction Y may be provided on the second bracket 621, and a slider slidably connected to the slide rail may be provided on the upper side of the second clamping jaw 628, and the second clamping jaw 628 may be driven to move along the second direction Y by sliding of the slider. The movement of the second clamping jaw 628 may be achieved by manual adjustment or by driving of a cylinder, a hydraulic cylinder, a motor, or the like.

[0082] In the above scheme, the four second clamps 628 can clamp the first row of battery modules 400 and the second row of battery modules 400 at the same time, and the width between the two second clamps 628 can be adjusted to accommodate double-row battery modules 400 of different lengths, thereby improving the compatibility of the second grabbing component 62.

[0083] Figure 8 Schematic diagram of the partial structure of the second grabbing assembly in some embodiments of the present application. Figure 8 As shown, in some embodiments, the second grabbing assembly 62 also includes a middle partition clamp 630, and the middle partition clamp 630 is provided on the side of the second sub-plate 624 facing the third sub-plate 625 and on the side of the third sub-plate 625 facing the second sub-plate 624. The middle partition clamp 630 is used to clamp the middle partition between the battery modules 400 in the first row and the battery modules 400 in the second row.

[0084] In the double-row battery modules 400 , a middle separator is disposed between the battery modules 400 in the first row and the battery modules 400 in the second row, and the middle separator is used to insulate the battery modules 400 in the first row and the battery modules 400 in the second row.

[0085] In the above solution, the middle partition clamp 630 can clamp the middle partition of the double-row battery module 400 for insulation, thereby further improving the gripping reliability of the second gripping assembly 62.

[0086] Fig. 9 This is a schematic diagram of the structure of the material feeding and grabbing structure of some embodiments of the present application. Fig. 9 As shown, in some embodiments, the unloading grasping structure 80 includes a third bracket 81 and two third clamping plates 82, the third bracket 81 is used to connect with the unloading robot 70; the two third clamping plates 82 are respectively slidably connected to the third bracket 81 along the first direction X, and are used to clamp the side panels of the single-row or double-row battery module 400 along the first direction X; wherein the first direction X is the width direction of the battery module 400.

[0087] Since the material unloading and grabbing structure 80 grabs the welded battery module 400, the material unloading and grabbing structure 80 is compatible with single-row and double-row battery modules 400. Whether it is a single-row battery module 400 or a double-row battery module 400, the material unloading and grabbing structure 80 can grab it without replacing the grabbing structure like the loading device 500.

[0088] A plurality of slide rails extending along the first direction X may be provided on the third bracket 81, and sliders slidably connected to the corresponding slide rails may be provided on the upper side of the third clamping plate 82, so that the third clamping plate 82 is driven to move along the first direction X by sliding of the sliders. The movement of the third clamping plate 82 may be achieved by manual adjustment or by driving of a cylinder, a hydraulic cylinder, a motor, or the like.

[0089] An insulating plate may be provided on one side of the third clamping plate 82 facing the battery module 400 to reduce the danger caused by leakage of the battery 100. A third convex strip 83 may be provided on one side of the third clamping plate 82 away from the first bracket 611. The third convex strip 83 is used to cover the bottom of the battery module 400 and contact the bottom of the battery module 400 to reduce the risk of the battery module 400 falling.

[0090] In the above solution, the material unloading gripper can grab both the welded single-row battery module 400 and the welded double-row battery module 100, thereby improving the compatibility of the material unloading gripping structure 80.

[0091] In some embodiments, the material unloading grabbing structure also includes two third clamps 84, which are respectively slidably connected to the third bracket 81 along the second direction Y, and are used to clamp the end plates of the single-row or double-row battery modules 400 along the second direction Y; wherein the second direction Y is the length direction of the battery module 400.

[0092] A slide rail extending along the second direction Y may be provided on the third bracket 81, and a slider slidably connected to the slide rail may be provided on the upper side of the third clamping jaw 84, and the third clamping jaw 84 may be driven to move along the second direction Y by sliding of the slider. The movement of the third clamping jaw 84 may be achieved by manual adjustment or by driving of a cylinder, a hydraulic cylinder, a motor, or the like.

[0093] An insulating portion may be provided on the side of the third clamping jaw 84 facing the battery module 400 to reduce the danger caused by leakage of the battery 100. A third protrusion 85 is provided on the side of the third clamping jaw 84 away from the first bracket 611. The third protrusion 85 is used to cover the bottom of the battery module 400 and contact the bottom of the battery module 400 to reduce the risk of the battery module 400 falling.

[0094] In the above solution, the side plates and end plates of the battery module 400 can be clamped by the cooperation between the third clamping claw 84 and the third clamping plate 82, thereby improving the gripping stability of the blanking gripping structure.

[0095] In a second aspect, an embodiment of the present application further provides a transport system, including a transport device for the battery module 400 of any of the above-mentioned embodiments.

[0096] The transfer system can also include NG trolley, welding fixture, post-weld inspection device, etc.

[0097] According to some embodiments of the present application, the present application provides a transfer device for a battery module 400, including a loading device 500 and a unloading device 600, wherein the loading device 500 includes a loading robot 50 and a loading and grasping structure 60 connected to the loading robot 50, and the loading device 500 is used to carry the battery module 400 to be welded to the welding station 700; the unloading device 600 includes a unloading robot 70 and a unloading and grasping structure 80 connected to the unloading robot 70, and the unloading device 600 is used to carry the battery module 400 welded at the welding station 700 to the next station. The loading and grasping structure 60 includes a first grasping component 61 and a second grasping component 62, wherein the first grasping component 61 is used to grasp a single-row battery module 400, and the second grasping component 62 is used to grasp a double-row battery module 400.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery module transport device, characterized in that: include: A loading device, comprising a loading robot and a loading grasping structure connected to the loading robot, the loading device being used to carry the battery module to be welded to the welding station; The unloading device comprises an unloading robot and an unloading grasping structure connected to the unloading robot, and the unloading device is used to transport the battery module that has been welded at the welding station to the next station.

2. The battery module transfer device according to claim 1, characterized in that: The feeding grabbing structure includes a first grabbing assembly and a second grabbing assembly, wherein the first grabbing assembly is used to grab a single-row battery module, and the second grabbing assembly is used to grab a double-row battery module.

3. The battery module transfer device according to claim 2, characterized in that: The first grabbing component comprises: A first bracket, used for connecting with the feeding robot; Two first clamping plates are respectively connected to the first bracket in a sliding manner along a first direction, and are used to clamp the side plates of the battery module along the first direction; wherein the first direction is the width direction of the battery module.

4. The battery module transfer device according to claim 3, characterized in that: The first grabbing assembly also includes two first clamping jaws, which are respectively slidably connected to the first bracket along a second direction and are used to clamp the end plate of the battery module along the second direction; wherein the second direction is the length direction of the battery module.

5. The battery module transfer device according to claim 3, characterized in that: The first grab assembly further includes a side panel clamp, and the side panel clamp includes: Clamp drive, The two first clamping blocks are connected to the clamping block driving member, and the clamping block driving member is used to drive the two first clamping blocks to move closer to or away from each other, so that the side plate of the battery module is clamped between the two first clamping blocks.

6. The battery module transfer device according to claim 2, characterized in that: The second grabbing component comprises: A second bracket, used for connecting with the feeding robot; The second clamping plate includes a first sub-plate, a second sub-plate, a third sub-plate and a fourth sub-plate which are slidably connected to the second bracket in sequence along the first direction, the first sub-plate and the second sub-plate are used to clamp the side plates of the first row of battery modules along the first direction, and the third sub-plate and the fourth sub-plate are used to clamp the side plates of the second row of battery modules along the first direction; wherein the first direction is the width direction of the battery module.

7. The battery module transfer device according to claim 6, characterized in that: The second grasping assembly also includes four second clamps, two of which are slidably connected to the second bracket along the second direction, and are used to clamp the end plates of the first row of battery modules along the second direction; the other two second clamps are slidably connected to the second bracket along the second direction, and are used to clamp the end plates of the second row of battery modules along the second direction; wherein the second direction is the length direction of the battery module.

8. The battery module transfer device according to claim 6, characterized in that: The second grabbing assembly also includes a middle partition clamping piece, and the middle partition clamping piece is provided on the side of the second sub-plate facing the third sub-plate and on the side of the third sub-plate facing the second sub-plate, and the middle partition clamping piece is used to clamp the middle partition between the battery modules in the first row and the battery modules in the second row.

9. The battery module transport device according to any one of claims 1 to 8, characterized in that: The material feeding and grabbing structure comprises: A third bracket, used for connecting with the blanking robot; Two third clamping plates are respectively connected to the third bracket in a sliding manner along a first direction, and are used to clamp the side plates of the single-row or double-row battery modules along the first direction; wherein the first direction is the width direction of the battery module.

10. The battery module transfer device according to claim 9, characterized in that: The material blanking and grabbing structure also includes two third clamps, which are respectively slidably connected to the third bracket along the second direction and are used to clamp the end plates of the single-row or double-row battery modules along the second direction; wherein the second direction is the length direction of the battery module.

11. A transport system, characterized in that: A transport device comprising a battery module as described in any one of claims 1-10.

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