Lithium ion energy storage battery stacking device

Abstract

The utility model discloses a stacking device capable of meeting the requirement of stacking lithium ion energy storage batteries into groups, and relates to the field of energy storage battery module manufacturing in the field of electrochemical energy storage. According to the technical scheme, the lithium ion energy storage battery stacking device comprises an operation platform, a fixed module stacking device and a sliding module stacking device, and the fixed module stacking device and the sliding module stacking device are installed on the operation platform. The fixed module side blocking device, the end part first pressing block and the end part second pressing block define a [-shaped fixed module stacking area on the fixed module bottom plate; the sliding module stacking device comprises a sliding module bottom plate, a sliding module side baffle, a third end pressing block and a fourth end pressing block define a sliding module stacking area in a [shape on the sliding module bottom plate, and the sliding module stacking area and the fixed module stacking area define a rectangular module stacking area. The device is used for stacking, extruding and grouping of single modules of the lithium ion energy storage battery, installation of side liquid cooling plates and assembly and grouping of side cooling double modules.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage battery module manufacturing in the field of electrochemical energy storage, in particular to a lithium-ion energy storage battery stacking device. Background Art

[0002] Electrochemical energy storage is a new type of electric energy storage system with advantages such as long life, high efficiency, fast dynamic response, unrestricted geographical conditions, and flexible storage duration. It can serve as a flexible regulatory resource in new power systems dominated by renewable energy. Lithium-ion battery energy storage boasts numerous advantages, including high energy density, high output power, long charge and discharge life, zero pollution, a wide operating temperature range, and low self-discharge. It currently holds a dominant position in electrochemical energy storage. As a new type of high-energy electrochemical energy storage, current energy storage designs typically stack individual lithium-ion cells into modules, which are then assembled into energy storage battery packs. Thermal management and design are crucial aspects of battery module and pack design, as lithium-ion batteries have stringent temperature requirements during charge and discharge. This critical aspect impacts the consistency and service life of lithium-ion batteries during operation. In severe cases, thermal runaway can even occur, leading to safety incidents in energy storage systems.

[0003] Currently, most lithium-ion energy storage battery packs use liquid cooling for thermal management, with the mainstream design employing bottom-side liquid cooling for thermal management. Compared to side-side liquid cooling, bottom-side liquid cooling technology has the following drawbacks: First, the heat exchange contact area at the bottom of the lithium-ion battery is small, resulting in low heat exchange efficiency and high heat exchange power consumption. Second, bottom-side liquid cooling can lead to severe condensation on the lower cold plate, compromising the electrical safety of the lithium-ion energy storage system. Using side-side liquid cooling for thermal management of lithium-ion batteries can effectively address these issues. Compared to bottom-side liquid cooling, side-side liquid cooling offers a larger heat exchange contact area. Under the same conditions, side-side liquid cooling can exchange more heat and achieve higher heat exchange efficiency. Furthermore, because the cold plate, except for the nozzle connector, is in close contact with the lithium-ion battery module on both sides, the module is installed in an IP67-rated battery enclosure. This significantly reduces condensation caused by the large temperature difference between the cold plate and the ambient temperature, improving the electrical safety of the energy storage system. There are certain gaps and expansion spaces inside the lithium-ion battery cells. These gaps and expansion spaces will cause instability in the internal structure of the battery cells, which in turn affects the safety and cycle life of the battery. In order to ensure the consistency and stability of the battery modules and improve product quality, it is necessary to stack the battery modules into groups by stacking and extrusion. The existing stacking tooling can only meet the stacking assembly of the bottom liquid cooling method of the energy storage lithium-ion battery, and does not have the function of installing and clamping the liquid cooling plate between two single modules. Due to the particularity of the side liquid cooling of the energy storage lithium-ion battery, it is necessary to install and clamp a liquid cooling plate between the two groups of single modules. Therefore, a larger space is required between the two single modules to facilitate the installation of the liquid cooling plate. After the liquid cooling plate is installed, the two groups of single modules can be closed and clamped with the liquid cooling plate in the middle. Due to the particularity of side liquid cooling, the existing tooling equipment cannot meet the stacking requirements of side liquid-cooled battery modules. Utility Model Content

[0004] The utility model provides a lithium-ion energy storage battery stacking device, which aims to meet the process requirements of stacking lithium-ion energy storage battery side liquid-cooled double modules into groups.

[0005] The technical solution adopted by the utility model is: a lithium-ion energy storage battery stacking device, comprising an operating platform and a fixed module stacking device, a sliding module stacking device and a side pushing feeding device installed on the operating platform, the plane corresponding to the operating platform is a horizontal plane, and the two directions perpendicular to each other on the horizontal plane are respectively the X-axis direction and the Y-axis direction; the fixed module stacking device comprises a fixed module bottom plate fixedly installed on the operating platform, and the fixed module bottom plate is respectively provided with a first end pressure block and a first pushing block device at both ends along the Y-axis direction, the first pushing block device is provided with a second end pressure block toward one end of the first end pressure block, the first pushing block device can push and pull the second end pressure block for reciprocating movement along the Y-axis direction, and a fixed module side stop device is fixed at one end of the fixed module bottom plate along the X-axis direction, the fixed module side stop device, the first end pressure block and the second end pressure block form a fixed module stacking area in the shape of [ on the fixed module bottom plate; the sliding module stacking device comprises a sliding module bottom plate slidably installed on the operating platform, the top surface of the sliding module bottom plate is aligned with the top surface of the fixed module bottom plate The surfaces are coplanar, the sliding direction of the sliding module bottom plate on the operating platform is the X-axis direction, and the third end pressure block and the second end push block device are respectively installed at both ends of the sliding module bottom plate along the Y-axis direction. The second push block device is provided with a fourth end pressure block at one end facing the third end pressure block, and the second push block device can push and pull the fourth end pressure block to reciprocate along the Y-axis direction. A sliding module side baffle is fixed to one end of the sliding module bottom plate along the X-axis direction, and the sliding module side baffle, the third end pressure block and the fourth end pressure block form a circle on the sliding module bottom plate. [shaped sliding module stacking area, the sliding module stacking area and the fixed module stacking area are arranged opposite to each other in the direction of the notch and form a rectangular module stacking area, the first end pressure block and the third end pressure block are located on the same side of the module stacking area and are arranged along the X-axis direction; the side push feeding device is fixedly installed on the operating platform, one end of the side push feeding device is connected to the sliding module bottom plate and can push and pull the sliding module bottom plate to reciprocate along the X-axis direction, the first pushing block device, the second pushing block device and the side pushing feeding device are all reciprocating linear motion drive devices.

[0006] The sliding module base plate of the sliding module stacking device is slidably installed on the operating platform. In order to ensure that the sliding module base plate can only slide back and forth along the X-axis direction, further: at least two first linear guide rails are fixed on the operating platform, and each first linear guide rail is distributed along the X-axis direction. A slider adapted to the first linear guide rail is fixed to the bottom of the sliding module base plate.

[0007] In order to reduce the influence of the second pushing block device on the stability of the sliding module stacking device and improve the stability of the sliding module stacking device in the reciprocating sliding along the X-axis direction, further: a limit stop bar is fixedly installed on the operating platform, the limit stop bar is distributed along the X-axis direction, the limit stop bar is provided with a slide groove, the slide groove is distributed along the X-axis direction, and the side of the sliding module bottom plate away from the second pushing block device is located in the slide groove and abuts against the limit stop bar.

[0008] The side push feeding device is used to push and pull the bottom plate of the sliding module to reciprocate along the X-axis direction, thereby controlling the size of the module stacking area in the X-direction. Specifically: the side push feeding device is a pneumatic device, a hydraulic device, a gear rack device or a screw lifting device; or, the side push feeding device includes a side push screw device fixedly installed on the operating platform and two second linear guides, the two second linear guides are arranged along the X-axis direction, and a sliding module push-pull bar is slidably installed on the two second linear guides. The two sliding module push-pull bars are respectively fixedly connected to the bottom plate of the sliding module, and the two sliding module push-pull bars are fixedly connected through a side push screw push plate, and a nut seat is provided at one end of the side push screw push plate facing away from the sliding module stacking area; the side push screw device includes a support seat fixed to the operating platform and a screw rod installed on the support seat, one end of the screw rod is provided with a crank, and the other end of the screw rod is threadedly matched with a nut seat fixedly installed on the side push screw push plate.

[0009] The first pushing block device and the second pushing block device are used to push and pull the second end pressing block and the fourth end pressing block respectively, thereby changing the size of the module stacking area in the Y-axis direction. Specifically: the first pushing block device is a pneumatic device, a hydraulic device, a gear rack device or a screw lifting device, and the second pushing block device is a pneumatic device, a hydraulic device, a gear rack device or a screw lifting device; or, the first pushing block device and the second pushing block device are the same, the second end pressure block and the fourth end pressure block are the same, the first pushing block device includes an end screw device and a slide rail mounting seat arranged along the Y-axis direction, the top of the slide rail mounting seat is slidably mounted with a slide rail, the movement direction of the slide rail along the slide rail mounting seat is the Y-axis direction, and an end screw push block is fixedly mounted on the top of the slide rail, one end of the end screw push block faces the end screw device and is provided with a nut seat, and the other end of the end screw push block faces the fixed module stacking area and is connected to the second end pressure block; the end screw device includes a support seat fixed to the bottom plate of the fixed module and a screw rod installed on the support seat, one end of the screw rod is provided with a crank, and the other end of the screw rod is threadedly matched with the nut seat of the end screw push block.

[0010] In order to facilitate monitoring the pushing force of the first pushing block device and the second pushing block device on the second end pressure block and the fourth end pressure block respectively, further: the second end pressure block includes a screw end push plate and a screw end pressure plate that are parallel to each other and arranged vertically, and the end of the end screw push block is fixedly connected to the screw end push plate at one end facing the fixed module stacking area. The screw end push plate and the screw end pressure plate are both rectangular plates. Guide rods are respectively fixed at the four corners of the screw end pressure plate, and adaptive through holes are respectively provided at the four corners of the screw end push plate. Each guide rod is inserted into the through hole of the screw end push plate and is fixed by a fixing ring. The guide rod and the through hole are clearance-matched, and a pressure sensor is provided between the screw end push plate and the screw end pressure plate.

[0011] In order to facilitate direct observation of the dimensions of the module stacking area in the X-axis and Y-axis directions, further: a length scale arranged along the Y-axis direction is provided on the top of the sliding module side baffle, and a length scale arranged along the X-axis direction is provided on the operating platform directly below the sliding module bottom plate.

[0012] In order to facilitate the arrangement of the fixed module stacking device, the sliding module stacking device and the side pushing feeding device, further: the operating platform is rectangular, the long side direction of the rectangle corresponding to the operating platform is the Y-axis direction, and the wide side direction is the X-axis direction; the fixed module bottom plate and the sliding module bottom plate are both rectangular, the long side direction of the rectangle corresponding to the fixed module bottom plate and the sliding module bottom plate is the Y-axis direction, and the wide side direction is the X-axis direction; a bracket is provided at the bottom of the operating platform, and the operating platform is fixed to the top of the bracket.

[0013] In order to ensure that the first end pressure block and the second end pressure block have sufficiently large supporting strength, specifically: the first end pressure block includes a vertically arranged end pressure plate, and the end pressure plate is located outside the module stacking area and has at least two end reinforcement blocks on one side; the third end pressure block has the same structure as the first end pressure block, and the end pressure plate of the third end pressure block is opposite to the end pressure plate of the first end pressure block and is respectively provided with avoidance grooves at both ends.

[0014] In order to make the fixed module side baffle device better adapt to the liquid cooling belts and lithium-ion batteries that need to be stacked, further: the fixed module side baffle device includes a middle side baffle and end side baffles located at both ends of the middle side baffle, the middle side baffle and the end side baffle are both arranged along the Y-axis direction, the installation height of the middle side baffle is higher than the installation height of the end side baffle, the middle side baffle is provided with an avoidance step arranged along the Y-axis direction, and the middle side baffle and the end side baffle are each provided with at least two side baffle reinforcement blocks on the side facing away from the fixed module stacking area, and the side baffle reinforcement blocks are fixedly installed on the fixed module bottom plate.

[0015] The beneficial effects of the present invention are as follows: the module stacking area is used to prevent the placement of liquid cooling belts and lithium-ion batteries that need to be stacked. The module stacking area is rectangular. The positions of the second end pressure block and the fourth end pressure block can be changed by the first and second push block devices, thereby changing the size of the module stacking area in the Y-axis direction; the position of the sliding module stacking device can be changed by the side push feeding device, thereby changing the size of the module stacking area in the X-axis direction. The present invention not only allows single modules to be stacked and assembled into groups, but also provides space for the liquid cooling plate between the two single modules to facilitate installation operations. At the same time, the sliding module can be closed toward the fixed module along the X-direction and clamp the liquid cooling plate, so that the liquid cooling plate is completely attached to the side of the energy storage lithium-ion battery. In this state, the subsequent assembly operation of the liquid cooling dual module on the side of the energy storage lithium-ion battery is carried out, achieving the optimal heat exchange state between the lithium-ion energy storage battery and the cold plate. The present invention can meet the process requirements for stacking the liquid cooling dual module on the side of the lithium-ion energy storage battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of an embodiment of the utility model.

[0017] Figure 2 yes Figure 1 A schematic structural diagram of the fixed module stacking device in the illustrated embodiment.

[0018] Figure 3 yes Figure 1 A schematic structural diagram of the sliding module stacking device in the illustrated embodiment.

[0019] Figure 4 yes Figure 1 A schematic structural diagram of the side propulsion feeding device in the illustrated embodiment.

[0020] Figure 5 It is the use of Figure 1 The embodiment shown is a schematic diagram of stacking two modules of lithium-ion energy storage batteries with liquid cooling on the side into a group.

[0021] Reference numerals: bracket 10, operating platform 20, first linear guide rail 201, limit stop bar 202, fixed module stacking device 30, fixed module bottom plate 301, first end pressure block 302, end pressure plate 3021, end reinforcement block 3022, first push block device 303, end lead screw device 3031, slide rail mounting seat 3032, slide rail 3033, end lead screw push block 3034, second end pressure block 304, lead screw end push plate 3041, lead screw end pressure plate 3042, guide rod 3043 , fixing ring 3044, pressure sensor 3045, fixed module side block device 305, middle side baffle 3051, end side baffle 3052, side block reinforcement block 3053, sliding module stacking device 40, sliding module bottom plate 401, end third pressure block 402, second push block device 403, end fourth pressure block 404, sliding module side baffle 405, side push feeding device 50, side push screw device 501, second linear guide rail 502, sliding module push-pull strip 503, side push screw push plate 504. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] The utility model is used for stacking and extruding single modules of lithium-ion energy storage batteries, installing side cold plates, and grouping side-cooled double modules. Figures 1 to 5As shown, the lithium-ion energy storage battery stacking device includes an operating platform 20 and a fixed module stacking device 30, a sliding module stacking device 40 and a side push feeding device 50 installed on the operating platform 20. A bracket 10 is provided at the bottom of the operating platform 20, and the operating platform 20 is fixed to the top of the bracket 10. For example, the operating platform 20 is locked and connected to the bracket 10 by a number of countersunk screws. In addition, the operating platform 20 can be placed directly on other supports. The operating platform 20 can be of any shape, generally a rectangle. For ease of description, the plane corresponding to the operating platform 20 is marked as a horizontal plane, and the two directions perpendicular to each other on the horizontal plane are the X-axis direction and the Y-axis direction. When the operating platform 20 is rectangular, the long side direction of the rectangle corresponding to the operating platform 20 is preferably the Y-axis direction and the wide side direction is the X-axis direction, such as Figure 1 shown.

[0024] The fixed module stacking device 30 includes a fixed module base plate 301 fixedly mounted on the operating platform 20. The fixed module base plate 301 can be directly fixedly mounted on the operating platform 20, or at least two fixed module mounting bars are provided on the operating platform 20. The fixed module base plate 301 is placed on the fixed module mounting bars, and then the fixed module base plate 301 and the fixed module mounting bars are fixedly mounted on the operating platform 20 by screws. Figure 1 As shown. The fixed module base plate 301 can be of any shape. In order to facilitate the arrangement of the fixed module stacking device 30, the fixed module base plate 301 is generally rectangular, and the long side direction of the rectangle is the Y-axis direction and the wide side direction is the X-axis direction. The fixed module mounting bar can lift the fixed module base plate 301 so that the top surface of the fixed module base plate 301 is coplanar with the top surface of the sliding module base plate 401. The fixed module base plate 301 is respectively installed with an end first pressure block 302 and a first pushing block device 303 at both ends along the Y-axis direction. The first pushing block device 303 is provided with an end second pressure block 304 facing the end first pressure block 302. The end first pressure block 302 and the end second pressure block 304 are both arranged vertically and parallel to each other. The first pushing block device 303 is used to push and pull the end second pressure block 304 to reciprocate along the Y-axis direction, mainly to push the end second pressure block 304 closer to the end first pressure block 302. A fixed module side stop 305 is fixed to one end of the fixed module base plate 301 along the X-axis, and is arranged along the Y-axis. The fixed module side stop 305, the first end pressure block 302, and the second end pressure block 304 form a [-shaped fixed module stacking area on the fixed module base plate 301. One side of the fixed module stacking area is a notch.

[0025] The fixed module side stop 305 has a larger size in the Y-axis direction. The fixed module side stop 305 can be a whole side stop or a segmented side stop. The fixed module side stop 305 has a certain height on the top surface of the fixed module bottom plate 301. For example, Figure 1 In the illustrated embodiment, the fixed module side baffle 305 includes a central side baffle 3051 and end side baffles 3052 located at both ends of the central side baffle 3051. The central side baffle 3051 and the end side baffles 3052 are both arranged along the Y-axis. The central side baffle 3051 is installed at a higher height than the end side baffles 3052. At least two side baffle reinforcement blocks 3053 are provided on each side of the central side baffle 3051 and the end side baffle 3052, facing away from the fixed module stacking area. The side baffle reinforcement blocks 3053 are fixedly mounted to the fixed module base plate 301. The side baffle reinforcement blocks 3053 serve to secure the central side baffle 3051 and the end side baffles 3052 and are generally secured to the fixed module base plate 301 by screws. Since the modules need to be fastened with steel ties at the upper end after being stacked into groups, in order to reserve space for the steel ties, the fixed module side baffle 305 is provided with an avoidance step arranged along the Y-axis direction. For example, the middle side baffle 3051 is provided with an avoidance step arranged along the Y-axis direction.

[0026] The first push block device 303 is actually a reciprocating linear motion drive device, which changes the size of the fixed module stacking area in the Y-axis direction by changing the position of the second pressure block 304 at the end. The first push block device 303 can be a pneumatic device or a hydraulic device, which uses pneumatic or hydraulic pressure to drive the second pressure block 304 at the end to produce displacement. The first push block device 303 can also be a gear rack device or a screw lifting device, which uses mechanical movement to drive the second pressure block 304 at the end to produce displacement. Another embodiment of the first push block device 303 is provided below. Figure 1 、 Figure 2 and Figure 5As shown, the first push block device 303 includes an end screw device 3031 arranged along the Y-axis direction and a slide rail mounting base 3032. The slide rail mounting base 3032 is fixed to the top surface of the fixed module base plate 301. A slide rail 3033 is slidably mounted on the top of the slide rail mounting base 3032. The slide rail 3033 moves along the slide rail mounting base 3032 in the Y-axis direction. The end screw push block 3034 is fixedly mounted on the top of the slide rail 3033. To ensure the balance and stability of the end screw push block 3034, two slide rails 3033 are provided. The two slide rails 3033 are parallel to each other and jointly support the end screw push block 3034. One end of the end screw pusher 3034 faces the end screw assembly 3031 and is equipped with a nut seat for mating with the end screw assembly 3031. The other end of the end screw pusher 3034 faces the fixed module stacking area and is connected to the second end pressure block 304, allowing the end screw pusher 3034 to push and pull the second end pressure block 304. The end screw assembly 3031 includes a support seat fixed to the fixed module base plate 301 and a screw mounted on the support seat. One end of the screw is equipped with a crank for driving the screw to rotate about its axis. The other end of the screw is threadedly mated with the nut seat of the end screw pusher 3034. By rotating the screw with the crank, the screw drives the end screw pusher 3034 and the second end pressure block 304 to move respectively along the Y-axis.

[0027] In order to monitor the pushing force of the second end pressing block 304, this can be achieved by monitoring the pushing force of the first pushing block device 303 on the second end pressing block 304. Figure 2 The second end pressure block 304 includes a screw end push plate 3041 and a screw end pressure plate 3042, which are parallel and vertically arranged. The end screw push block 3034 is directly fixedly connected to the screw end push plate 3041 at one end facing the fixed module stacking area. The screw end push plate 3041 and the screw end pressure plate 3042 are both rectangular plates. Guide rods 3043 are fixed to the four corners of the screw end pressure plate 3042. The four corners of the screw end push plate 3041 are provided with matching through holes. Each guide rod 3043 is inserted into the through hole of the screw end push plate 3041 and fixed by a fixing ring 3044. The guide rods 3043 and the through holes are clearance-fitted. A pressure sensor 3045 is provided between the screw end push plate 3041 and the screw end pressure plate 3042. In addition, the number of guide rods 3043 between the screw end push plate 3041 and the screw end pressure plate 3042 can also be three, five, or more.

[0028] The sliding module stacking device 40 includes a sliding module base plate 401 that is slidably mounted on the operating platform 20. The top surface of the sliding module base plate 401 is coplanar with the top surface of the fixed module base plate 301. The sliding direction of the sliding module base plate 401 on the operating platform 20 is the X-axis direction. The sliding module base plate 401 can be of any shape. In order to facilitate the arrangement of the sliding module stacking device 40, the sliding module base plate 401 is generally rectangular, and the long side direction of the rectangle is the Y-axis direction, and the wide side direction is the X-axis direction. The sliding module base plate 401 can only move along the X-axis direction on the operating platform 20. Therefore, mutually compatible slides and slides can be set between the operating platform 20 and the sliding module base plate 401. The slides and slides are one group (one slide and one slide) or multiple groups, and each group is arranged along the X-axis direction. Or see Figure 1 and Figure 5 At least two first linear guide rails 201 are fixed on the operating platform 20, and each first linear guide rail 201 is distributed along the X-axis direction. A slider adapted to the first linear guide rail 201 is fixed at the bottom of the sliding module base plate 401. For example, Figure 1 In the illustrated embodiment, three first linear guide rails 201 are fixed to the bottom of the sliding module base plate 401. The slider is preferably fixed to the first linear guide rails 201 so that it cannot move vertically. The first linear guide rails 201 elevate the sliding module base plate 401 above the operating platform 20. A fixed module mounting bar is provided between the fixed module base plate 301 and the operating platform 20. The fixed module mounting bar elevates the fixed module base plate 301 so that its top surface is coplanar with the top surface of the sliding module base plate 401.

[0029] A third end pressure block 402 and a second push block device 403 are respectively mounted on both ends of the sliding module base plate 401 along the Y-axis. A fourth end pressure block 404 is mounted on the end of the second push block device 403 facing the third end pressure block 402. The third end pressure block 402 and the fourth end pressure block 404 are both arranged vertically and parallel to each other. The second push block device 403 is used to push and pull the fourth end pressure block 404 to move back and forth along the Y-axis, primarily pushing the fourth end pressure block 404 toward the third end pressure block 402. A sliding module side baffle 405 is fixed to one end of the sliding module base plate 401 along the X-axis, and the sliding module side baffle 405 is arranged along the Y-axis. The sliding module side baffle 405, the third end pressure block 402, and the fourth end pressure block 404 form a [-shaped sliding module stacking area on the sliding module base plate 401. One side of the sliding module stacking area is notched. The notch direction of the sliding module stacking area is arranged opposite to the notch direction of the fixed module stacking area. The sliding module stacking area and the fixed module stacking area form a rectangular module stacking area. The first pressure block 302 at the end and the third pressure block 402 at the end are located on the same side of the module stacking area and are arranged along the X-axis direction. The first push block device 303 and the second push block device 403 are located on the same side of the module stacking area and are arranged along the X-axis direction. The second push block device 403 is actually a reciprocating linear motion drive device, which changes the size of the sliding module stacking area in the Y-axis direction by changing the position of the fourth pressure block 404 at the end. The second push block device 403 can be a pneumatic device or a hydraulic device, which uses pneumatic or hydraulic pressure to drive the fourth pressure block 404 at the end to generate displacement. The second push block device 403 can also be a gear rack device or a screw lifting device, which uses mechanical movement to drive the fourth pressure block 404 at the end to generate displacement. Figure 1 In the illustrated embodiment, the second pushing block device 403 is identical to the first pushing block device 303 , and the fourth end pressing block 404 is identical to the second end pressing block 304 .

[0030] The first end pressing block 302 and the third end pressing block 402 form one side of the module stacking area, and the two can be the same, such as Figure 3 and Figure 4 In order to ensure that the first end pressing block 302 has sufficient support strength and avoid the first end pressing block 302 and the second end pressing block 304 from tilting, see Figure 1 and Figure 2The first end pressure block 302 includes a vertically arranged end pressure plate 3021. This end pressure plate 3021 is located outside the module stacking area and has at least two end reinforcement blocks 3022 fixed to the fixed module base plate 301 via screws. To ensure sufficient support strength for the third end pressure block 402, the third end pressure block 402 has the same structure as the first end pressure block 302. The difference between the first and third end pressure blocks 302 and 402 is that the first end pressure block 302 is mounted on the fixed module base plate 301, while the third end pressure block 402 is mounted on the sliding module base plate 401. Because the cold plate faucet joint of the lithium-ion energy storage battery side liquid dual module is located away from the first and second push block devices 303 and 403, avoidance grooves are provided at the opposite ends of the end pressure plate 3021 of the third end pressure block 402 and the end pressure plate 3021 of the first end pressure block 302.

[0031] When the second pushing block device 403 pushes the fourth pressing block 404 at the end, it generates a force in the Y-axis direction on the sliding module bottom plate 401, thereby affecting the stability of the sliding module bottom plate 401. In order to reduce the influence of the second pushing block device 403 on the stability of the sliding module stacking device 40 and improve the stability of the sliding module stacking device 40 in the reciprocating sliding along the X-axis direction, see Figure 1 and Figure 5 The operating platform 20 is also fixedly mounted with a limit stop bar 202, which is distributed along the X-axis. The limit stop bar 202 is provided with a slide groove, which is distributed along the X-axis. The side of the sliding module bottom plate 401 away from the second push block device 403 is located in the slide groove and abuts against the limit stop bar 202. In order to improve the stability of the limit stop bar 202, at least one reinforcement block can be provided on the side of the limit stop bar 202 facing away from the sliding module stacking area. In order to facilitate direct observation of the displacement of the fourth pressure block 404 at the end pushed by the second push block device 403, see Figure 1 、 Figure 3 and Figure 5 The top of the sliding module side baffle 405 is provided with a length scale arranged along the Y-axis direction. By observing the positional relationship between the fourth pressure block 404 at the end and the length scale, the size of the sliding module stacking area in the Y-axis direction can be obtained.

[0032] The side push feeding device 50 is fixedly installed on the operating platform 20, and one end of the side push feeding device 50 is connected to the sliding module base plate 401 and can push and pull the sliding module base plate 401 to reciprocate along the X-axis direction. The side push feeding device 50 is actually a reciprocating linear motion drive device, which is used to push and pull the sliding module base plate 401 to reciprocate along the X-axis direction, change the distance between the sliding module base plate 401 and the fixed module base plate 301, and then change the size of the module stacking area in the X direction. The side push feeding device 50 can be a pneumatic device or a hydraulic device, which uses pneumatic or hydraulic pressure to drive the sliding module base plate 401 to generate displacement. The side push feeding device 50 can also be a gear rack device or a screw lifting device, which uses mechanical movement to drive the sliding module base plate 401 to generate displacement. Another embodiment of the side push feeding device 50 is provided below. As shown in FIG. Figure 1 、 Figure 4 and Figure 5 As shown, the side push feeding device 50 includes a side push screw device 501 fixedly mounted on the operating platform 20 and two second linear guides 502, the two second linear guides 502 are arranged along the X-axis direction, and a sliding module push-pull bar 503 is slidably mounted on each of the two second linear guides 502. The two sliding module push-pull bars 503 are respectively fixedly connected to the sliding module bottom plate 401. The two sliding module push-pull bars 503 are fixedly connected by a side push screw push plate 504. The side push screw push plate 504 can be arranged between the two sliding module push-pull bars 503 or on top of the two sliding module push-pull bars 503. The side push screw push plate 504 is provided with a nut seat at one end facing away from the sliding module stacking area, and the nut seat is used to cooperate with the side push screw device 501. In addition, the second linear guides 502 can also be three or more, and each second linear guide 502 is parallel to each other and jointly supports the side push screw push plate 504. The side push screw device 501 includes a support seat fixed to the operating platform 20 and a screw installed on the support seat. One end of the screw is provided with a crank, which is used to drive the screw to rotate around its axis, and the other end of the screw is threadedly engaged with a nut seat fixedly installed on the side push screw push plate 504. By rotating the screw by the crank, the screw drives the side push screw push plate 504 and the sliding module push-pull bar 503 to move accordingly along the X-axis direction. In order to facilitate direct observation of the displacement of the sliding module base plate 401 in the X-axis direction by the side push feed device 50, the operating platform 20 can also be provided with a length scale arranged along the X-axis direction at a position directly below the sliding module base plate 401. By observing the position of the sliding module base plate 401 on the length scale, the size of the module stacking area in the X-axis direction can be obtained. In addition, the length scale can also be provided on the limit stop bar 202.

Claims

1. A lithium-ion energy storage battery stacking device, characterized in that: The invention comprises an operating platform (20) and a fixed module stacking device (30), a sliding module stacking device (40) and a side push feeding device (50) installed on the operating platform (20); the plane corresponding to the operating platform (20) is a horizontal plane, and two directions perpendicular to each other on the horizontal plane are an X-axis direction and a Y-axis direction respectively; The fixed module stacking device (30) comprises a fixed module base plate (301) fixedly mounted on the operating platform (20); a first end pressure block (302) and a first pushing block device (303) are respectively mounted on both ends of the fixed module base plate (301) along the Y-axis direction; a second end pressure block (304) is provided on one end of the first pushing block device (303) facing the first end pressure block (302); the first pushing block device (303) can push and pull the second end pressure block (304) to reciprocate along the Y-axis direction; a fixed module side stop device (305) is fixed on one end of the fixed module base plate (301) along the X-axis direction; the fixed module side stop device (305), the first end pressure block (302) and the second end pressure block (304) form a [-shaped fixed module stacking area on the fixed module base plate (301); The sliding module stacking device (40) comprises a sliding module base plate (401) slidably mounted on the operating platform (20), the top surface of the sliding module base plate (401) is coplanar with the top surface of the fixed module base plate (301), the sliding direction of the sliding module base plate (401) on the operating platform (20) is the X-axis direction, and the sliding module base plate (401) is respectively installed with an end third pressing block (402) and a second pushing block device (403) at both ends along the Y-axis direction, and the second pushing block device (403) is provided with an end fourth pressing block (404) facing the end third pressing block (402), and the second pushing block device (403) is provided with a fixed module base plate (301). ) can push and pull the fourth end pressing block (404) to reciprocate along the Y-axis direction, a sliding module side baffle (405) is fixed to one end of the sliding module bottom plate (401) along the X-axis direction, the sliding module side baffle (405), the third end pressing block (402) and the fourth end pressing block (404) form a [-shaped sliding module stacking area on the sliding module bottom plate (401), the sliding module stacking area is arranged opposite to the notch direction of the fixed module stacking area and forms a rectangular module stacking area, the first end pressing block (302) and the third end pressing block (402) are located on the same side of the module stacking area and are arranged along the X-axis direction; The side push feeding device (50) is fixedly installed on the operating platform (20), one end of the side push feeding device (50) is connected to the sliding module base plate (401) and can push and pull the sliding module base plate (401) to reciprocate along the X-axis direction, and the first pushing block device (303), the second pushing block device (403) and the side push feeding device (50) are all reciprocating linear motion drive devices.

2. The lithium-ion energy storage battery stacking device according to claim 1, wherein: At least two first linear guide rails (201) are fixed on the operating platform (20), and each first linear guide rail (201) is distributed along the X-axis direction. A slider adapted to the first linear guide rail (201) is fixed at the bottom of the sliding module base plate (401).

3. The lithium-ion energy storage battery stacking device according to claim 1, wherein: A limit stop bar (202) is also fixedly installed on the operating platform (20), and the limit stop bar (202) is distributed along the X-axis direction. The limit stop bar (202) is provided with a slide groove, and the slide groove is distributed along the X-axis direction. The side of the sliding module bottom plate (401) away from the second push block device (403) is located in the slide groove and abuts against the limit stop bar (202).

4. The lithium-ion energy storage battery stacking device according to claim 1, wherein: The side push feeding device (50) is a pneumatic device, a hydraulic device, a gear rack device or a screw lifting device; or, the side push feeding device (50) includes a side push screw device (501) fixedly mounted on the operating platform (20) and two second linear guide rails (502), the two second linear guide rails (502) are arranged along the X-axis direction, and a sliding module push-pull bar (503) is slidably mounted on each of the two second linear guide rails (502), and the two sliding module push-pull bars (503) They are respectively fixedly connected to the sliding module bottom plate (401), and the two sliding module push-pull strips (503) are fixedly connected through the side push screw push plate (504), and a nut seat is provided at one end of the side push screw push plate (504) facing away from the sliding module stacking area; the side push screw device (501) includes a support seat fixed to the operating platform (20) and a screw installed on the support seat, one end of the screw is provided with a crank, and the other end of the screw is threadedly matched with the nut seat fixedly installed on the side push screw push plate (504).

5. The lithium-ion energy storage battery stacking device according to claim 1, wherein: The first push block device (303) is a pneumatic device, a hydraulic device, a gear rack device or a screw lifting device, and the second push block device (403) is a pneumatic device, a hydraulic device, a gear rack device or a screw lifting device; or, the first push block device (303) and the second push block device (403) are the same, the second end pressure block (304) and the fourth end pressure block (404) are the same, the first push block device (303) includes an end screw device (3031) and a slide rail mounting seat (3032) arranged along the Y-axis direction, the top of the slide rail mounting seat (3032) is slidably mounted with a slide rail (3033), and the slide rail (3033) is arranged along the Y-axis direction. The movement direction of the slide rail mounting seat (3032) is the Y-axis direction, and an end screw push block (3034) is fixedly installed on the top of the slide rail (3033), one end of the end screw push block (3034) faces the end screw device (3031) and is provided with a nut seat, and the other end of the end screw push block (3034) faces the fixed module stacking area and is connected to the end second pressure block (304); the end screw device (3031) includes a support seat fixed to the fixed module bottom plate (301) and a screw installed on the support seat, one end of the screw is provided with a crank, and the other end of the screw is threadedly matched with the nut seat of the end screw push block (3034).

6. The lithium-ion energy storage battery stacking device according to claim 5, wherein: The second end pressure block (304) includes a screw end push plate (3041) and a screw end pressure plate (3042) that are parallel to each other and arranged vertically. The end screw push block (3034) is fixedly connected to the screw end push plate (3041) at one end facing the fixed module stacking area. The screw end push plate (3041) and the screw end pressure plate (3042) are both rectangular plates. The four corners of the screw end push plate (3041) are respectively fixed with guide rods (3043). The four corners of the screw end pressure plate (3042) are respectively provided with matching through holes. Each guide rod (3043) is inserted into the through hole of the screw end push plate (3041) and fixed by a fixing ring (3044). The guide rod (3043) and the through hole are clearance-matched. A pressure sensor (3045) is provided between the screw end push plate (3041) and the screw end pressure plate (3042).

7. The lithium-ion energy storage battery stacking device according to any one of claims 1 to 6, wherein: The top of the sliding module side baffle (405) is provided with a length scale arranged along the Y-axis direction, and the operating platform (20) is provided with a length scale arranged along the X-axis direction at a position directly below the sliding module bottom plate (401).

8. The lithium-ion energy storage battery stacking device according to any one of claims 1 to 6, wherein: The operating platform (20) is rectangular, and the long side direction of the rectangle corresponding to the operating platform (20) is the Y-axis direction, and the wide side direction is the X-axis direction; the fixed module base plate (301) and the sliding module base plate (401) are both rectangular, and the long side direction of the rectangle corresponding to the fixed module base plate (301) and the sliding module base plate (401) is the Y-axis direction, and the wide side direction is the X-axis direction; a bracket (10) is provided at the bottom of the operating platform (20), and the operating platform (20) is fixed to the top of the bracket (10).

9. The lithium-ion energy storage battery stacking device according to any one of claims 1 to 6, wherein: The first end pressing block (302) comprises a vertically arranged end pressing plate (3021), and the end pressing plate (3021) is located on one side outside the module stacking area and has at least two end reinforcing blocks (3022); the third end pressing block (402) has the same structure as the first end pressing block (302), and the end pressing plate (3021) of the third end pressing block (402) and the end pressing plate (3021) of the first end pressing block (302) are respectively provided with avoidance grooves at their opposite ends.

10. The lithium-ion energy storage battery stacking device according to any one of claims 1 to 6, characterized in that: The fixed module side baffle device (305) comprises a middle side baffle (3051) and end side baffles (3052) located at both ends of the middle side baffle (3051). The middle side baffle (3051) and the end side baffles (3052) are both arranged along the Y-axis direction. The installation height of the middle side baffle (3051) is higher than the installation height of the end side baffles (3052). The middle side baffle (3051) is provided with an avoidance step arranged along the Y-axis direction. The middle side baffle (3051) and the end side baffle (3052) are each provided with at least two side baffle reinforcement blocks (3053) on a side facing away from the fixed module stacking area. The side baffle reinforcement blocks (3053) are fixedly installed on the fixed module bottom plate (301).

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