Self-heating restraining tray

Abstract

The self-heating restraining tray comprises a tray body, a layer plate mechanism and a driving mechanism, the tray body comprises a base, a front plate arranged at the front end of the base and a rear plate arranged at the rear end of the base, and the layer plate mechanism comprises a plurality of layer plate structures sequentially arranged between the front plate and the rear plate at intervals from front to back. A restraining space is formed between every two adjacent layer plate structures, each layer plate structure comprises a first clamping plate and a second clamping plate, the two ends of each first clamping plate are each provided with two sliding parts, the two sliding parts are arranged at the top end of the base in a sliding mode, a first mounting groove is formed in the rear side of each first clamping plate, and each second clamping plate is arranged in the corresponding first mounting groove. A second mounting groove is formed in the bottom of the first mounting groove, and a heating sheet is arranged in the second mounting groove; the driving mechanism comprises an air cylinder which is arranged on the outer side of the front plate. According to the utility model, the energy consumption can be reduced, the cost is reduced, the uniform charging and discharging of the lithium battery can be ensured, and the performance of the lithium battery is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to a self-heating restraint tray. Background Art

[0002] During the production process of lithium batteries, it is usually necessary to charge and discharge the lithium batteries for the first time to activate them. This process is called lithium battery formation.

[0003] The restraint pallet of the currently existing chemical formation equipment is generally placed in the storage position of the chemical formation equipment, and includes a pallet body, a layer plate mechanism and a driving mechanism. The pallet body includes a base, a front plate arranged at the front end of the base and a rear plate arranged at the rear end of the base. The layer plate mechanism includes a plurality of layer plate structures arranged in sequence from front to back between the front plate and the rear plate, and a restraint space is formed between two adjacent layer plate structures. The layer plate structure includes layers, and the layers can move forward and backward relative to the base. The layers of the two adjacent layer plate structures are linked to each other. The driving mechanism includes a motor, a screw and a nut threaded with the screw rod arranged on the outside of the front plate. One end of the screw rod is connected to the output end of the motor, and the other end of the screw rod passes through the through hole of the front plate and is connected to the layer plate of the first layer plate structure. In actual application, the lithium batteries are first placed one by one in the restraint space of two adjacent layer plate structures, and then the motor drives the first layer plate structure to move backward through the screw rod and nut, thereby driving each lithium battery and the remaining layer plate structures to move backward in turn, so that the lithium battery can be squeezed by the layer plates of the two adjacent layer plate structures, thereby realizing the restraint and pressurization of the lithium battery. After the positive and negative poles of the lithium battery are electrically connected to the positive polarization probe and the negative polarization probe in the storage position respectively, the control module of the formation equipment can be used to control the charger of the formation equipment to charge and discharge the lithium battery, thereby realizing the formation treatment of the lithium battery. At the same time, the storage position is heated by the heating module of the formation equipment, so that the lithium battery can be heated to improve the performance of the lithium battery.

[0004] In the above structure, since the storage space is heated, the heat is first transferred to the tray body and then to the lithium batteries. The heat transfer rate is relatively slow, resulting in a long heating time, increased energy consumption, and heat waste, which increases costs. In addition, since lithium batteries generate heat and expand during the charging and discharging process, the pressure on the lithium batteries will continue to increase, usually causing the pressure on the lithium batteries to exceed the predetermined value. The above-mentioned restraint tray cannot detect the pressure of the lithium batteries, and therefore cannot adjust the position of the layer structure, and thus cannot adjust the pressure of the lithium batteries. As a result, the pressure of the lithium batteries cannot be maintained constant, resulting in uneven charging and discharging of the lithium batteries and reduced performance of the lithium batteries. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a self-heating restraint tray, which can reduce energy consumption, lower costs, ensure uniform charging and discharging of lithium batteries, and improve the performance of lithium batteries.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] The tray body comprises a first plate and a second plate, and the second plate is mounted on a support frame and has a first end connected to the support frame by a spring, and the second end is connected to the support frame by a spring. The second plate is mounted on a support frame and has a first end connected to the support frame by a spring. The second plate is mounted on a support frame and has a first end connected to the support frame by a spring.

[0008] The beneficial effects of the present invention are as follows: the layer plate structure of the present invention includes a first plywood and a second plywood, the rear side of the first plywood is provided with a first mounting groove, the second plywood is arranged in the first mounting groove, the bottom of the first mounting groove is provided with a second mounting groove, and the second mounting groove is provided with a heating plate, which generates heat after being energized, and the heat can be directly transferred to the lithium battery through the layer plate structure, thereby heating the lithium battery. Compared with the existing technology, the heat transfer speed will be faster, which can reduce the heating time and heat waste, thereby reducing energy consumption, reducing costs, and improving the formation efficiency of the lithium battery. The pressure sensor between the output end of the cylinder and the front side of the first plywood of the first layer plate structure can detect the compressive pressure of the lithium battery during the formation process, and the cylinder can adjust the position of the layer plate structure according to the compressive pressure of the lithium battery detected by the pressure sensor, thereby realizing the adjustment of the compressive pressure of the lithium battery, ensuring the constancy of the compressive pressure of the lithium battery, thereby ensuring uniform charging and discharging of the lithium battery, and improving the performance of the lithium battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0010] Figure 1This is a structural schematic diagram of a self-heating restraint tray provided by an embodiment of the present invention at a first angle;

[0011] Figure 2 yes Figure 1 A schematic structural diagram of a second angle of the self-heating restraint tray shown;

[0012] Figure 3 yes Figure 1 A schematic cross-sectional view of the self-heating restraint tray shown;

[0013] Figure 4 yes Figure 1 A schematic diagram of the structure of the self-heating restraint tray shown in FIG. 1 , wherein the two negative pressure cup mechanisms are removed, the first and second plywood of the multiple layer structure of the layer mechanism located on the left are removed, and the rear plate is removed;

[0014] Figure 5 yes Figure 1 A schematic structural diagram of a first angle of view of the layer mechanism of the self-heating restraint tray shown;

[0015] Figure 6 yes Figure 5 A schematic structural diagram of the layer mechanism of the self-heating restraint tray from a second angle;

[0016] Figure 7 yes Figure 5 A schematic structural diagram of a first angle of view of the layer structure of the layer mechanism shown;

[0017] Figure 8 yes Figure 5 A schematic structural diagram of the layer structure of the layer mechanism from a second angle;

[0018] Figure 9 yes Figure 8 The schematic diagram of the structure of the laminate structure after removing the second plywood;

[0019] Figure 10 yes Figure 1 A schematic structural diagram of the negative pressure cup mechanism of the self-heating restraint tray from a first angle;

[0020] Figure 11 yes Figure 10 A schematic structural diagram of the negative pressure cup mechanism at a second angle is shown;

[0021] Figure 12 yes Figure 11 A local enlarged schematic diagram of point A shown;

[0022] Figure 13 yes Figure 11 A local enlarged schematic diagram of point B is shown. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technical personnel in this field without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the present invention can be combined interactively without conflicting with each other.

[0024] Please refer to Figures 1 to 4 An embodiment of the present invention provides a self-heating restraint tray, which includes a tray body 10, a layer mechanism 20, a driving mechanism 30 and a negative pressure cup mechanism 50.

[0025] The tray body 10 includes a base 11, a front panel 12 disposed at the front end of the base 11, and a rear panel 13 disposed at the rear end of the base 11. The front panel 12 and the rear panel 13 are disposed in a front-to-back relationship. Two sealing panels 14 are disposed between one end of the front panel 12 and one end of the rear panel 13, and between the other ends of the front panel 12 and the other end of the rear panel 13, respectively. The two sealing panels 14 are disposed in a left-to-right relationship and are both located at the top end of the base 11.

[0026] In this embodiment, Figure 4 As shown, the base 11 includes two bottom plates 112 and three base support members 111 . The three base support members 111 are sequentially spaced from left to right, and one bottom plate 112 is provided between two adjacent base support members 111 .

[0027] Combine Figures 5 to 9 As shown, the shelf structure 20 includes multiple shelf structures 21 spaced sequentially from front to back between the front plate 12 and the rear plate 13. A gap exists between the first shelf structure 21 and the front plate 12, and between the last shelf structure 21 and the rear plate 13. A restraint space 22 for the lithium battery 100 is formed between two adjacent shelf structures 21. In this embodiment, there are two shelf structures 20, which are arranged side by side. It is understood that the number of shelf structures 20 and shelf structures 21 can be adjusted based on actual conditions.

[0028] The laminate structure 21 includes a first clamping plate 211 and a second clamping plate 212 . The two ends of the first splint 211 are respectively provided with two sliding members 2111, and the two ends of the sliding member 2111 protrude from the front and rear sides of the first splint 211 respectively. The two sliding members 2111 are slidably arranged at the top end of the base 11 and can move back and forth relative to the base 11. Specifically, the top end of the base 11 is provided with two layer slide rails 113 corresponding to the layer mechanism 20, and the two layer slide rails 113 are arranged side by side left and right, and the bottom end of the sliding member 2111 is provided with a support seat 2111a, and the bottom end of the support seat 2111a is provided with a layer slide block 114. The sliding member 2111 at one end of the first splint 211 of multiple layer structure 21, and the layer slide block 114 at the bottom end of the support seat 2111a is slidably matched with one of the layer slide rails 113, and the sliding member 2111 at the other end of the first splint 211 of multiple layer structure 21, and the layer slide block 114 at the bottom end of the support seat 2111a is slidably matched with the other layer slide rail 113.

[0029] The two sliding members 2111 of the preceding layer structure 21 are respectively linked to the two sliding members 2111 of the succeeding layer structure 21. In this embodiment, a groove 21111 is provided on the side of the sliding member 2111 away from the first clamping plate 211. The bottom of the groove 21111 is provided with a first connecting plate 2113 and a second connecting plate 2112 arranged side by side in a front-to-back manner. The first connecting plate 2113 is provided with a first connecting hole 21131, and the second connecting plate 2112 is provided with a second connecting hole 21121 corresponding to the first connecting hole 21131. A reset guide post 2114 and a reset elastic member (not shown) are respectively provided between the second connecting plates 2112 of the two sliding members 2111 of the preceding layer structure 21 and the first connecting plates 2113 of the two sliding members 2111 of the succeeding layer structure 21. One end of the reset guide post 2114 is fixedly disposed within the first connecting hole 21131 of the corresponding first connecting plate 2113, and the other end of the reset guide post 2114 is inserted into the second connecting hole 21121 of the corresponding second connecting plate 2112. The reset elastic member is sleeved around the outer periphery of the reset guide post 2114, with one end connected to the corresponding second connecting plate 2112 and the other end connected to the corresponding first connecting plate 2113. The reset elastic member is a spring.

[0030] In this embodiment, two guide shafts 15 are provided between the front plate 12 and the rear plate 13. The two guide shafts 15 are symmetrically arranged. A sliding groove 21112 is provided on the side of the sliding member 2111 away from the first clamping plate 211. The sliding groove 21112 is located above the reset guide post 2114. The sliding grooves 21112 of the two sliding members 2111 at both ends of the first clamping plate 21 slide in engagement with the two guide shafts 15, respectively. It is understood that the number of guide shafts 15 and sliding grooves 21112 can be set according to actual conditions.

[0031] A first mounting slot 211a is provided on the rear side of the first clamping plate 211, and the second clamping plate 212 is disposed within the first mounting slot 211a. A second mounting slot 211b is provided at the bottom of the first mounting slot 211a, and a heating plate 24 is disposed within the second mounting slot 211b. The heating plate 24 is used to heat the lithium battery 100. In this embodiment, the heating plate 24 is provided with a heating plate mounting hole, and a mounting post 241 corresponding to the heating plate mounting hole is provided at the bottom of the second mounting slot 211b. The end of the mounting post 241 passes through the corresponding heating plate mounting hole and abuts against the front side of the second clamping plate 212.

[0032] A power-taking mounting plate 16 is provided between the front plate 12 and the rear plate 13. The power-taking mounting plate 16 is located on one side of the layer structure 20. A plurality of power-taking probes 17 are provided through the power-taking mounting plate 16. Each power-taking probe 17 corresponds to a layer structure 21. One end of the power-taking probe 17 is located below the power-taking mounting plate 16 and is used to electrically connect to the control module. The other end of the power-taking probe 17 is located above the power-taking mounting plate 16 and is connected to a power connection line. The top of the first clamping plate 211 is provided with a wire hole connected to the second mounting groove 211b. The other end of the power connection line away from the power-taking probe 17 passes through the wire hole of the first clamping plate 211 of the corresponding layer structure 21 and is electrically connected to the heating plate 24 of the corresponding layer structure 21. The heating plate 24 generates heat when energized, thereby heating the lithium battery 100.

[0033] In this embodiment, the number of power-taking installation plates 16 corresponds to the number of layer plate mechanisms 20, which is also two. One power-taking installation plate 16 is located between the left sealing plate 14 and the left layer plate mechanism 20, and the other power-taking installation plate 16 is located between the right sealing plate 14 and the right layer plate mechanism 20.

[0034] Two first limiting blocks 231 are provided on the front side of the first clamping plate 21, and two first support blocks 232 are provided on the adjacent sides of the two first limiting blocks 231. The bottom ends of the first support blocks 232 are flush with the bottom ends of the first limiting blocks 231. Two second limiting blocks 233 are provided on the rear side of the second clamping plate 212, and the two second limiting blocks 233 correspond to the two first limiting blocks 231, respectively. Two second support blocks 234 are provided on the adjacent sides of the two second limiting blocks 233, and the bottom ends of the second support blocks 234 are flush with the bottom ends of the second limiting blocks 233, respectively. The two second support blocks 234 correspond to the two first support blocks 232. The side of the first support block 232 away from the first clamping plate 211 is flush with the side of the first limiting block 231 away from the first clamping plate 211, and the side of the second support block 234 away from the second clamping plate 212 is flush with the side of the second limiting block 233 away from the second clamping plate 212. In actual application, when the lithium battery 100 is placed in the constrained space 22, the lithium battery 100 can be placed at the top of the two first support blocks 232 of the previous layer structure 21 and the top of the two second support blocks 234 of the next layer structure 21. At this time, the lithium battery 100 is located between the two first limit blocks 231 of the previous layer structure 21 and between the two second limit blocks 233 of the next layer structure 21. The lithium battery 100 can be supported by the two first support blocks 232 and the two second support blocks 234, and can be limited by the two first limit blocks 231 and the two second limit blocks 233 to prevent the lithium battery 100 from shifting.

[0035] The driving mechanism 30 includes a cylinder 31, which is arranged on the outside of the front plate 12 through a cylinder seat 32. The output end of the cylinder 31 passes through the through hole 121 of the front plate 12 and is connected to the front side of the first clamping plate 211 of the first layer structure 21 through a pressure sensor (not shown in the figure). The pressure sensor is used to detect the pressure of the lithium battery 100. The cylinder 31 is used to drive the first clamping plate 211 of the first layer structure 21 to move backward or forward. Under the action of the reset elastic member between the two sliding members 2111 of the previous layer structure 21 and the two sliding members 2111 of the next layer structure 21, the remaining layer structures 21 can be driven to move backward or forward in turn. It is also used to adjust the position of the layer structure 21 according to the pressure of the lithium battery 100 detected by the pressure sensor, thereby adjusting the pressure of the lithium battery 100.

[0036] In this embodiment, the number of the driving mechanisms 30 corresponds to the number of the layer mechanisms 20, which is also two, and the two driving mechanisms 30 are arranged side by side on the left and right.

[0037] Two cooling fans 40 are positioned opposite each other at each end of the restraint space 22. The cooling fans 40 partially protrude from the bottom end of the first clamping plate 211. The cooling fans 40 are located below the two first support blocks 232, the two first limit blocks 231, the two second support blocks 234, and the two second limit blocks 233.

[0038] A bracket 18 is provided at the top of the base 11. Its ends are connected to the inner sides of the front panel 12 and the inner sides of the rear panel 13, respectively. The bracket 18 is positioned below the first clamping plate 211 of the multi-layer structure 21 and between two sliding members 2111 at either end of the first clamping plate 211. A heat dissipation cavity 181 is formed between the bracket 18 and the top of the base 11. A cooling fan 40 is disposed at the top of the bracket 18, and the bracket 18 provides mounting support for the cooling fan 40. The top of the bracket 18 is provided with a plurality of first cooling holes 182, spaced sequentially from front to back, at positions corresponding to the cooling fans 40. The top of the base 11 is provided with a plurality of second cooling holes 1121, spaced sequentially from front to back, at positions corresponding to the cooling fans 40. Both the first and second cooling holes 182, 182, communicate with the heat dissipation cavity 181, and the second cooling holes 1121 communicate with the external environment. The lithium battery 100 releases heat during the charging and discharging process. The cooling fan 40 can dissipate the heat released by the lithium battery 100 in the corresponding confinement space 22 to the external environment through the multiple first cooling holes 182, the cooling cavity 181 and the multiple second cooling holes 1121.

[0039] Combine Figures 10 to 13 As shown, the negative pressure cup mechanism 50 includes a negative pressure mounting plate 51 and a plurality of negative pressure cups 52 .

[0040] The negative pressure mounting plate 51 is located above the multiple layer plate structure 21. The two ends of the negative pressure mounting plate 51 are respectively connected to two sliding blocks 61. The two sliding blocks 61 are respectively slidably connected to two L-shaped fixed blocks 62 and can move left and right relative to the corresponding fixed blocks 62. One fixed block 62 is set at the top and outside of the front plate 12, and the other fixed block 62 is set at the top and outside of the rear plate 13 (the fixed block 62 set at the top and outside of the front plate 12 is not shown in the figure). In this embodiment, two sliding block grooves 611 are respectively provided on the side where the two sliding blocks 61 are close to each other. The two sliding block grooves 611 slide with the two fixed blocks 62 respectively. The two sliding blocks 61 are respectively threaded with fasteners. The ends of the fasteners of the two sliding blocks 61 are respectively against the tops of the two fixed blocks 62, thereby locking the sliding blocks 62 on the corresponding fixed blocks 62 to prevent the sliding blocks 62 and the negative pressure mounting plate 51 from moving left and right. The heads of the fasteners of the two sliding blocks 61 are respectively located above the two sliding blocks 61.

[0041] The fastener is a screw rod. The top of the sliding block 61 is provided with a screw hole 612 which is connected with the sliding block slot 611 . The screw rod is installed in the internal thread of the screw hole 612 .

[0042] A pull rod 63 is provided at one end of the sliding block 61, and a connecting block 64 is provided on the outer periphery of the pull rod 63. The connecting block 64 is slidingly connected to the corresponding fixed block 62. Specifically, a connecting block groove 641 is provided on the side of the connecting block 64 close to the corresponding fixed block 62, and the connecting block groove 641 is slidingly matched with the corresponding fixed block 62.

[0043] A limiting member 516 is fixedly provided on one side of the negative pressure mounting plate 51, for example, the right side, and a plurality of mounting members 511 and a plurality of mounting seats 512 are slidably provided. The mounting members 511 and the mounting seats 512 can move forward and backward relative to the negative pressure mounting plate 51. The plurality of mounting seats 512 and the plurality of mounting members 511 are alternately arranged in sequence from front to back. The limiting member 516 is located in front of the first mounting seat 512, and the limiting member 516 corresponds to the first layer plate structure 21. The plurality of mounting members 511 correspond one-to-one with the remaining layer plate structures 21, and each mounting seat 512 corresponds to a restraint space 22. The top end of the mounting seat 512 is open, and the side of the mounting seat 512 away from the negative pressure mounting plate 51 is open. Specifically, a mounting member slide rail 5111 is provided on one side of the negative pressure mounting plate 51, a mounting member slider 5112 is provided on the side of the mounting member 511 close to the negative pressure mounting plate 51, and a mounting seat slider is provided on the side of the mounting seat 512 close to the negative pressure mounting plate 51. The mounting member sliders 5112 of multiple mounting members 511 and the mounting seat sliders of multiple mounting seats 512 all slide in cooperation with the mounting member slide rail 5111.

[0044] The bottom end of the mounting member 511 protrudes from the bottom end of the negative pressure mounting plate 51 and is slidably mounted on the top end of the first clamping plate 211 of the corresponding floor structure 21. The mounting member 511 can move left and right relative to the corresponding floor structure 21. Specifically, a clamping plate slide rail 5114 is provided on the top end of the first clamping plate 211 of the floor structure 21, and a mounting member slide groove 5113 is provided on the bottom end of the mounting member 511. The mounting member slide groove 5113 slidably engages with the clamping plate slide rail 5114 of the corresponding floor structure 21.

[0045] A first elastic mounting member 514 is provided between the mounting seat 512 and the adjacent mounting member 511. One end of the first elastic mounting member 514 is connected to the corresponding mounting seat 512 via a first connecting block, and the other end of the first elastic mounting member 514 is connected to the corresponding mounting member 511 via a second connecting block. The first elastic mounting member 514 is a tension spring. A second elastic mounting member 518 is provided between the limiting member 516 and the first mounting seat 512. One end of the second elastic mounting member 518 is connected to the limiting member 516 via a third connecting block, and the other end of the second elastic mounting member 518 is connected to the first mounting seat 512 via a fourth connecting block. The second elastic mounting member 518 is a tension spring.

[0046] The bottom end of the mounting seat 512 is provided with a through hole that communicates with the interior of the mounting seat 512. Each negative pressure cup 52 corresponds to a mounting seat 512 and a restraining space 22. The negative pressure cup 52 is located above the corresponding mounting seat 512. The end of the negative pressure suction nozzle 521 of the negative pressure cup 52 passes through the interior of the corresponding mounting seat 512 and the through hole and extends into the corresponding restraining space 22. A linear bearing 5121 is provided at the bottom of the mounting seat 512. The linear bearing 5121 is sleeved around the outer circumference of the negative pressure suction nozzle 521 of the corresponding negative pressure cup 52. A negative pressure elastic member 5122 is provided between the bottom end of the linear bearing 5121 and the end of the negative pressure suction nozzle 521 of the corresponding negative pressure cup 52. The negative pressure elastic member 5122 is sleeved around the outer circumference of the negative pressure suction nozzle 521 of the corresponding negative pressure cup 52. The negative pressure elastic member 5122 is a spring. The end of the negative pressure suction nozzle 521 of the negative pressure cup 52 is used to dock with the liquid injection port 103 of the lithium battery 100 in the corresponding restraint space 22. When the end of the negative pressure suction nozzle 521 of the negative pressure cup 52 docks with the liquid injection port 103 of the lithium battery 100 in the corresponding restraint space 22, the negative pressure elastic part 5122 is compressed, thereby applying a downward force to the negative pressure suction nozzle 521, thereby ensuring that the end of the negative pressure suction nozzle 521 and the liquid injection port 103 of the lithium battery 100 in the corresponding restraint space 22 will not separate, thereby ensuring air tightness.

[0047] The negative pressure connector 522 of the negative pressure cup 52 is connected to a connecting pipe 523. The connecting pipes 523 of the multiple negative pressure cups 52 are all connected to the negative pressure manifold 53. The negative pressure manifold 53 is located above the negative pressure mounting plate 51 and is connected to the negative pressure mounting plate 51 via a support frame. A frame 54 is provided at the top of the negative pressure mounting plate 51, in front of the multiple negative pressure cups 52. The frame 54 is equipped with an air control valve 55. One end of the negative pressure manifold 53 is connected to the air control valve 55 via a pipe 531, and the other end of the negative pressure manifold 53 is sealed. The air control valve 55 is used to connect to the exhaust gas collection device.

[0048] The liquid injection connector 524 of the negative pressure cup 52 is connected to the liquid injection tube 525. The liquid injection tubes 525 of multiple negative pressure cups 52 are all connected to the liquid injection manifold 56. The liquid injection manifold 56 is located above the negative pressure manifold 53 and is connected to the negative pressure mounting plate 51 through the mounting frame. One end of the liquid injection manifold 56 is used to connect to the liquid injection device, and the other end of the liquid injection manifold 56 is closed.

[0049] In this embodiment, the number of the negative pressure cup mechanisms 50 corresponds to the number of the layer plate mechanisms 20 , which is also two, and the two negative pressure cup mechanisms 50 are arranged side by side on the left and right.

[0050] The two sliding blocks 61 are provided to adjust the left-right position of the negative pressure mounting plate 51, thereby adjusting the left-right position of the negative pressure cup 52, ensuring that the end of the negative pressure nozzle 521 of the negative pressure cup 52 can dock with the liquid filling port of the lithium battery 100. For example, when the negative pressure mounting plate 51 needs to be moved to the left, the fasteners of the two sliding blocks 61 are first screwed to separate the ends of the fasteners 61 from the top of the corresponding fixed block 62, and then the pull rod 63 is pushed leftward, thereby pushing the connecting block 64 and the corresponding sliding block 61 to move leftward relative to the corresponding fixed block 62. The fasteners of the two sliding blocks 61 are then screwed to make the ends of the fasteners abut against the top of the corresponding fixed block 62, and the adjustment is complete. When the negative pressure mounting plate 51 needs to be moved to the right, first screw the fasteners of the two sliding blocks 61 so that the ends of the fasteners are separated from the top ends of the corresponding fixed blocks 62, and then pull the pull rod 63 to the right, thereby pulling the connecting block 64 and the corresponding sliding block 61 to move to the right relative to the corresponding fixed block 62, and then screw the fasteners of the two sliding blocks 61 so that the ends of the fasteners are against the top ends of the corresponding fixed blocks 62, and the adjustment is completed.

[0051] Through the above structure, in actual application, the lithium batteries 100 are first placed one by one in the restraint space 22 of two adjacent layer plate structures 21, and the lithium batteries 100 are placed on the top of the two first support blocks 232 of the previous layer plate structure 21 and the top of the two second support blocks 234 of the next layer plate structure 21. At this time, the lithium battery 100 is located between the two first limit blocks 231 of the previous layer plate structure 21 and between the two second limit blocks 233 of the next layer plate structure 21. During the placement of the lithium battery 100, the negative pressure suction nozzle 521 of the negative pressure cup 52 is first moved upward so that the end of the negative pressure suction nozzle 521 is located above the corresponding restraint space 22, which facilitates the placement of the lithium battery 100. At this time, the negative pressure elastic member 5122 is compressed. After the lithium battery 100 is placed, the negative pressure suction nozzle 521 is released. Under the resetting action of the negative pressure elastic member 5122, the negative pressure suction nozzle 521 can be driven to move downward so that the end of the negative pressure suction nozzle 521 is docked with the liquid filling port 103 of the lithium battery 100 in the corresponding restraint space 22. After the tip of the negative pressure nozzle 521 docks with the corresponding lithium battery 100 filling port 103 within the restraining space 22, the negative pressure elastic member 5122 remains compressed, thereby applying a downward force to the negative pressure nozzle 521. This ensures that the tip of the negative pressure nozzle 521 and the corresponding lithium battery 100 filling port 103 within the restraining space 22 do not separate, thereby ensuring airtightness. The linear bearing 5121 provides support for the up and down movement of the negative pressure nozzle 521.

[0052] Then, the first clamping plate 211 and the second clamping plate 212 of the first layer plate structure 21 are driven by the cylinder 31 to move backward, thereby driving the two sliding members 2111 at both ends of the first clamping plate 211 to move backward along the two guide shafts 15 respectively. Driven by the reset elastic member between the two sliding members 2111 of the previous layer plate structure 21 and the two sliding members 2111 of the next layer plate structure 21, the lithium batteries, the first clamping plates 211, the second clamping plates 212 of the remaining layer plate structures 21 and the two sliding members 2111 at both ends of the first clamping plate 211 are driven to move backward along the two guide shafts 15 respectively. The two sliding members 2111 of the last layer plate structure 21 are moved back and forth until both sliding members 2111 of the last layer plate structure 21 are against the inner side of the rear plate 13. In this way, the lithium battery 100 between the two layer plate structures 21 can be squeezed by the second clamping plate 212 of the previous layer plate structure 21 and the first clamping plate 211 of the next layer plate structure 21, thereby restraining and pressurizing the lithium battery 100. At this time, the reset elastic member between the two sliding members 2111 of the previous layer plate structure 21 and the two sliding members 2111 of the next layer plate structure 21 is compressed, and the pressure of the lithium battery 100 can be detected by the pressure sensor. The two guide shafts 15 can guide the movement of the two sliding members 2111 at both ends of the first clamping plate 211, and the reset guide pillars between the two sliding members 2111 of the previous layer plate structure 21 and the two sliding members 2111 of the next layer plate structure 21 can guide the corresponding reset elastic member to prevent the reset elastic member from twisting. Since the bottom end of the mounting member 511 is slidably mounted on the top end of the first clamping plate 211 of the corresponding layer structure 21, the mounting member 511 can be synchronously moved backwards under the drive of the first clamping plate 211 of the corresponding layer structure 21 during the backward movement of the layer structure 21. During the backward movement of the mounting member 511, the first mounting elastic member 514 located in front of the mounting member 511 can drive the mounting seat 512 located in front of the mounting member 511 and the negative pressure cup 52 on the mounting seat 512 to move backwards synchronously, thereby enabling the negative pressure cup 52 and the lithium battery 100 in the corresponding restraint space 22 to move synchronously, thereby ensuring that the end of the negative pressure nozzle 521 of the negative pressure cup 52 and the liquid injection port 103 of the lithium battery 100 in the corresponding restraint space 22 are always docked. Since the limiting member 516 is fixedly mounted on one side of the negative pressure mounting plate 51, after the first mounting seat 512 moves backwards to the predetermined position, the second mounting elastic member 518 is in a stretched state.

[0053] After the positive electrode 101 and the negative electrode 102 of the lithium battery 100 are electrically connected to the positive polarization formation probe and the negative polarization formation probe respectively, the charger can be controlled by the control module to charge and discharge the lithium battery 100, thereby realizing the formation treatment of the lithium battery 100. At the same time, the power-taking probe 17 and the power supply are connected by the control module to energize the heating plate 24. After the heating plate 24 is energized, it generates heat. The heat can be directly transferred to the lithium battery 100 through the layer plate structure 21, thereby heating the lithium battery 100, thereby improving the performance of the lithium battery 100. Compared with the existing technology, the heat transfer speed will be faster, which can reduce the heating time and heat waste, thereby reducing energy consumption, reducing costs, and improving the formation efficiency of the lithium battery 100. During the formation treatment of the lithium battery 100, the air control valve 55 is opened, so that the interior of the lithium battery 100 can be evacuated through the liquid injection port 103 of the lithium battery 100 through the negative pressure suction nozzle 521 of the negative pressure cup 52, so that the waste gas generated during the charging and discharging of the lithium battery 100 can enter the manifold 53 through the negative pressure cup 52, and then be collected by the waste gas collection device. In this way, the waste gas generated during the charging and discharging of the lithium battery 100 can be discharged in time, avoiding the phenomenon of poor formation and the like, thereby improving the performance of the lithium battery 100.

[0054] Since the lithium battery 100 will heat up and expand during the charging and discharging process, the pressure on the lithium battery 100 will continue to increase. When the pressure of the lithium battery 100 detected by the pressure sensor exceeds a predetermined value, the first clamping plate 211 and the second clamping plate 212 of the first layer structure 21 are driven by the cylinder 31 to move forward. Driven by the two sliding members 2111 of the previous layer structure 21 and the two sliding members 2111 of the next layer structure 21, the first clamping plate 211 and the second clamping plate 212 of each lithium battery 100 and the remaining layer structures 21 are driven to move forward in sequence. The two sliding members 2111 at both ends of the first clamping plate 211 are respectively driven along the two guide rails. The axis 15 moves forward, thereby adjusting the position of the layer structure 21, thereby reducing the squeezing force of the second clamping plate 212 of the previous layer structure 21 and the first clamping plate 211 of the next layer structure 21 on the lithium battery 100 between the two layer structures 21, so that the compressive pressure of the lithium battery 100 is reduced. When the compressive pressure of the lithium battery 100 reaches a predetermined value, the cylinder 31 stops driving the first clamping plate 211 and the second clamping plate 212 of the first layer structure 21 to move forward, thereby adjusting the compressive pressure of the lithium battery 100, ensuring the constancy of the compressive pressure of the lithium battery 100, thereby ensuring uniform charging and discharging of the lithium battery 100 and improving the performance of the lithium battery 100. During the forward movement of the layer structure 21, the mounting member 511 can be synchronously moved forward driven by the first clamping plate 211 of the corresponding layer structure 21. During the forward movement of the mounting member 511, the first mounting elastic member 514 located behind the mounting member 511 can drive the mounting seat 512 located behind the mounting member 511 and the negative pressure cup 52 on the mounting seat 512, and the second mounting elastic member 518 can drive the first mounting seat 512 and the negative pressure cup 52 on the mounting seat 512 to move forward synchronously, so that the negative pressure cup 52 and the corresponding lithium battery 100 in the restraint space 22 move synchronously, thereby ensuring that the end of the negative pressure suction nozzle 521 of the negative pressure cup 52 is always docked with the liquid filling port 103 of the lithium battery 100 in the corresponding restraint space 22.

[0055] After the lithium battery 100 is formed, the first clamping plate 211 and the second clamping plate 212 of the first layer structure 21 are driven by the cylinder 31 to move forward to the initial position. Driven by the two sliding members 2111 of the previous layer structure 21 and the two sliding members 2111 of the next layer structure 21, the remaining layer structures 21 can be driven to move forward to the initial position, thereby releasing the restraint of the lithium battery 100. The mounting member 511 is driven by the first clamping plate 211 of the corresponding layer structure 21 to move forward to the initial position synchronously. The first mounting elastic member 514 located behind the mounting member 511 can drive the mounting seat 512 located behind the mounting member 511 and the negative pressure cup 52 on the mounting seat 512, and the second mounting elastic member 518 can drive the first mounting seat 512 and the negative pressure cup 52 on the mounting seat 512 to move forward synchronously to the initial position. The electrolyte is then injected into the lithium battery 100 through the injection device via the injection manifold 56, injection tube 525, injection connector 524, negative pressure cup 52, negative pressure nozzle 521, and injection port 103 of the lithium battery 100, thereby replenishing the lithium battery 100. After replenishment, the negative pressure nozzle 521 of the negative pressure cup 52 is first moved upward, and then the lithium battery 100 is removed from the restraint space 22.

[0056] The above is a specific description of the preferred implementation of the present invention, but the invention of the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A self-heating restraint tray, comprising a tray body, a layer plate mechanism and a drive mechanism, wherein the tray body comprises a base, a front plate arranged at the front end of the base and a rear plate arranged at the rear end of the base, the layer plate mechanism comprises a plurality of layer plate structures sequentially arranged between the front plate and the rear plate from front to back, a gap being respectively provided between the first layer plate structure and the front plate and between the last layer plate structure and the rear plate, and a restraint space being formed between two adjacent layer plate structures, characterized in that: The layer plate structure includes a first splint and a second splint, two sliding members are respectively provided at both ends of the first splint, the two sliding members are respectively slidably arranged at the top end of the base and can move forward and backward relative to the base, the two sliding members of the previous layer plate structure are respectively linked to the two sliding members of the next layer plate structure, a first mounting groove is provided on the rear side of the first splint, the second splint is arranged in the first mounting groove, a second mounting groove is provided at the bottom of the first mounting groove, and a heating plate is provided in the second mounting groove; the driving mechanism includes a cylinder, which is arranged on the outer side of the front plate, and the output end of the cylinder passes through the through hole of the front plate and is connected to the front side of the first splint of the first layer plate structure through a pressure sensor.

2. The self-heating restraint tray according to claim 1, characterized in that: At least two guide shafts are provided between the front plate and the rear plate, and the two guide shafts are symmetrically arranged on the left and right sides. A sliding groove is provided on the side of the sliding member away from the first clamping plate, and the sliding grooves of the two sliding members at both ends of the first clamping plate are respectively slidably matched with the two guide shafts.

3. The self-heating restraint tray according to claim 1, characterized in that: The sliding member is provided with a groove on the side away from the first splint, and the bottom of the groove is provided with a first connecting plate and a second connecting plate arranged side by side in front and back, the first connecting plate is provided with a first connecting hole, and the second connecting plate is provided with a second connecting hole corresponding to the first connecting hole, and a reset guide post and a reset elastic member are respectively provided between the second connecting plates of the two sliding members of the previous layer plate structure and the first connecting plates of the two sliding members of the latter layer plate structure. One end of the reset guide post is fixedly set in the first connecting hole of the corresponding first connecting plate, and the other end of the reset guide post is inserted in the second connecting hole of the corresponding second connecting plate. The reset elastic member is sleeved on the outer periphery of the reset guide post, and one end of the reset elastic member is connected to the corresponding second connecting plate, and the other end of the reset elastic member is connected to the corresponding first connecting plate.

4. The self-heating restraint tray according to claim 1, characterized in that: A power taking installation plate is provided between the front plate and the rear plate. The power taking installation plate is located on one side of the layer plate mechanism and is penetrated by a plurality of power taking probes. Each power taking probe corresponds to a layer plate structure. One end of the power taking probe is located below the power taking installation plate and is used to be electrically connected to the control module. The other end of the power taking probe is located above the power taking installation plate and is connected to a power taking connection line. A wire hole communicating with the second mounting groove is provided at the top of the first clamping plate. The other end of the power taking connection line away from the power taking probe passes through the wire hole of the first clamping plate of the corresponding layer plate structure and is electrically connected to the heating plate of the corresponding layer plate structure.

5. The self-heating restraint tray according to claim 1, characterized in that: The front side of the first splint is provided with two first limit blocks arranged opposite to each other on the left and right sides, and two first support blocks are respectively provided on the side where the two first limit blocks are close to each other, and the bottom end of the first support block is flush with the bottom end of the first limit block. The rear side of the second splint is provided with two second limit blocks arranged opposite to each other on the left and right sides, and the two second limit blocks respectively correspond to the two first limit blocks, and two second support blocks are respectively provided on the side where the two second limit blocks are close to each other, and the bottom end of the second support block is flush with the bottom end of the second limit block, and the two second support blocks respectively correspond to the two first support blocks.

6. The self-heating restraint tray according to claim 1, characterized in that: Two cooling fans are respectively provided at both ends of the restraint space and are arranged opposite to each other on the left and right sides. Parts of the cooling fans protrude from the bottom end of the first clamping plate.

7. The self-heating restraint tray according to claim 6, characterized in that: A bracket is provided at the top of the base, and both ends of the bracket are respectively connected to the inner side of the front plate and the inner side of the rear plate, the bracket is located below the first plywood of the multiple layer structure and between the two sliding parts at both ends of the first plywood, a heat dissipation cavity is formed between the bracket and the top of the base, the heat dissipation fan is arranged at the top of the bracket, and the top of the bracket is provided with a plurality of first heat dissipation holes at the position corresponding to the heat dissipation fan, and the plurality of first heat dissipation holes are arranged in sequence from front to back, the top of the base is provided with a plurality of second heat dissipation holes at the position corresponding to the heat dissipation fan, and the plurality of second heat dissipation holes are arranged in sequence from front to back, the plurality of first heat dissipation holes and the plurality of second heat dissipation holes are all connected to the heat dissipation cavity, and the plurality of second heat dissipation holes are all connected to the external environment.

8. The self-heating restraint tray according to claim 1, characterized in that: The self-heating restraint tray also includes a negative pressure cup mechanism, which includes a negative pressure mounting plate and a plurality of negative pressure cups. The negative pressure mounting plate is located above the plurality of layer plate structures. The two ends of the negative pressure mounting plate are respectively connected to two sliding blocks. The two sliding blocks are respectively slidably connected to two fixed blocks and can move left and right relative to the corresponding fixed blocks. One of the fixed blocks is arranged at the top and outer side of the front plate, and the other fixed block is arranged at the top and outer side of the rear plate. and a plurality of mounting members are provided on one side of the negative pressure mounting plate, and a plurality of mounting members are slidably provided on the mounting member, and the mounting member and the mounting member can move forward and backward relative to the negative pressure mounting plate, and the plurality of mounting members and the plurality of mounting members are alternately arranged in sequence from front to back. The limiting member is located in front of the first mounting member and corresponds to the first layer plate structure, and the plurality of mounting members correspond to the remaining layer plate structures one by one. Each mounting seat corresponds to a restraining space, and each mounting seat corresponds to a restraining space. The bottom end of the mounting member protrudes from the bottom end of the negative pressure mounting plate and is slidably provided on the top end of the first splint of the corresponding layer plate structure. The mounting member can move left and right relative to the corresponding layer plate structure. A first mounting elastic member is provided between the mounting seat and the adjacent mounting member, one end of the first mounting elastic member is connected to the corresponding mounting seat, and the other end of the first mounting elastic member is connected to the corresponding mounting seat. A second mounting elastic member is provided between the limiting member and the first mounting seat, one end of the second mounting elastic member is connected to the limiting member, and the other end of the second mounting elastic member is connected to the first mounting seat. The bottom end of the mounting seat is provided with a through hole connected to the interior of the mounting seat, and each negative pressure cup corresponds to a mounting seat and a restraint space respectively. The negative pressure cup is located above the corresponding mounting seat, and the end of the negative pressure suction nozzle of the negative pressure cup passes through the interior of the corresponding mounting seat and the through hole and extends into the corresponding restraint space. A linear bearing is provided at the bottom of the mounting seat, and the linear bearing is sleeved on the outer periphery of the negative pressure suction nozzle of the corresponding negative pressure cup. A negative pressure elastic part is provided between the bottom end of the linear bearing and the end of the negative pressure suction nozzle of the corresponding negative pressure cup, and the negative pressure elastic part is sleeved on the outer periphery of the negative pressure suction nozzle of the corresponding negative pressure cup.

9. The self-heating restraint tray according to claim 8, characterized in that: The negative pressure connector of the negative pressure cup is connected to a connecting pipe, and the connecting pipes of the multiple negative pressure cups are all connected to the negative pressure manifold. The negative pressure manifold is located above the negative pressure mounting plate and is connected to the negative pressure mounting plate through a support frame. The top of the negative pressure mounting plate is provided with a frame in front of the multiple negative pressure cups. The frame is provided with an air control valve. One end of the negative pressure manifold is connected to the air control valve through a pipe, and the other end of the negative pressure manifold is closed. The injection joint of the negative pressure cup is connected to an injection tube, and the injection tubes of multiple negative pressure cups are all connected to the injection manifold. The injection manifold is located above the negative pressure manifold and is connected to the negative pressure mounting plate through a mounting frame. One end of the injection manifold is used to connect to the injection device, and the other end of the injection manifold is closed.

10. The self-heating restraint tray according to claim 8, characterized in that: The two sliding blocks are respectively threaded with fasteners, the ends of the fasteners of the two sliding blocks are respectively against the top ends of the two fixed blocks, and the heads of the fasteners of the two sliding blocks are respectively located above the two sliding blocks. A pull rod is provided at one end of the sliding block, and a connecting block is provided on the outer periphery of the pull rod. The connecting block is slidably connected to the corresponding fixed block.

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