Battery cell discharging device

Abstract

The utility model provides a battery cell discharging device, the battery cell discharging device comprises a clamping mechanism, a pressing mechanism and a discharging mechanism, the clamping mechanism comprises a groove body, a shell and a clamping assembly, and the shell is connected to the groove body and is provided with a movable channel; the clamping assembly comprises a variable pitch shaft, a driving motor, a plurality of sliding blocks, a guide rail and a plurality of clamping plates; the variable-pitch shaft is arranged in the movable channel in a penetrating mode and rotationally connected to the shell, the variable-pitch shaft is connected to the driving motor, the variable-pitch shaft is provided with a plurality of variable-pitch spiral grooves, a sliding arm arranged on each sliding block in a protruding mode is embedded into one variable-pitch spiral groove, each sliding block is connected with a clamping plate, the guide rail is connected to the shell, and the multiple sliding blocks are arranged at intervals in the length direction of the guide rail; the pressing mechanism is arranged above the groove body; the discharging mechanism is electrically connected to the pressing mechanism. The variable pitch shaft drives the sliding block and the clamping plate to clamp the battery cells with different thicknesses, so that the applicability of the battery cell discharging device is improved; the clamping mechanism and the pressing mechanism clamp a plurality of battery cells, and the discharging mechanism discharges the plurality of battery cells, so that the discharging efficiency is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of battery recycling, and in particular to a battery cell discharge device. Background Art

[0002] Waste lithium-ion power batteries are mainly composed of shells, diaphragms, electrolytes, positive electrode materials and negative electrode materials. Among them, various chemical substances such as nickel, cobalt and manganese have potential pollution risks, threatening the natural environment and our health. At the same time, my country's mineral resources are also extremely scarce, and the metal elements contained in waste power batteries are very valuable resources. Therefore, it is necessary to obtain valuable products through the processing processes of crushing, screening, magnetic separation, fine crushing and so on, so as to realize the recycling and reuse of waste power batteries.

[0003] In the process of recycling used power batteries, the battery cells need to be discharged first, and then crushed and recycled. During the discharge process, the battery cells need to be accurately positioned and clamped, and then the battery cells and electrical devices are connected to form a discharge path for discharge.

[0004] The existing discharge device uses a fixture to fix and clamp batteries in batches. The fixture can only be used to fix and clamp one type of battery cell. Since different types of battery cells have different models, and the sizes of different types of battery cells are different, different tooling fixtures are required to fix and clamp different specifications of battery cells during discharge processing. The discharge device cannot be compatible with multiple types of battery cells for unified processing, which makes the discharge device not very applicable and the discharge efficiency is slow. Utility Model Content

[0005] The purpose of the present disclosure is to overcome the deficiencies in the prior art and provide a battery cell discharge device that is adapted to different battery cell thicknesses and can discharge multiple battery cells.

[0006] The purpose of this disclosure is achieved through the following technical solutions:

[0007] A battery cell discharge device comprises a clamping mechanism, a pressing mechanism and a discharge mechanism.

[0008] The clamping mechanism comprises a slot body, a shell and a clamping assembly; the slot body is provided with a mounting slot; the shell is arranged in the mounting slot, a movable channel is provided in the shell, and the shell is also provided with a sliding through slot connected to the movable channel; the clamping assembly comprises a pitch-changing shaft, a driving motor, a slider, a guide rail and a clamping plate; the pitch-changing shaft passes through the movable channel, the pitch-changing shaft is rotatably connected to the shell, the pitch-changing shaft is fixedly connected to the output end of the driving motor, a spiral groove group is provided in the circumference of the pitch-changing shaft, a sliding arm is convexly provided on the slider, the number of the sliders, the sliding arms and the clamping plates are all multiple, the spiral groove group comprises multiple pitch-changing spiral grooves, one end of each sliding arm is embedded in the corresponding pitch-changing spiral groove through the sliding through slot, the guide rail is connected to the shell, multiple sliders are arranged at intervals along the length direction of the guide rail, and each clamping plate is connected to the corresponding slider;

[0009] The clamping mechanism is provided with a discharge clamping part, and the discharge clamping part is used to clamp the battery cell to be discharged;

[0010] The discharge mechanism is electrically connected to the discharge clamping portion.

[0011] In one embodiment, the plurality of variable pitch spiral grooves include m first variable pitch spiral grooves, the starting points of the m first variable pitch spiral grooves are spaced apart along the axial direction of the variable pitch shaft, the pitches of the m first variable pitch spiral grooves gradually decrease along the direction of the variable pitch shaft away from the drive motor, and the thread lead angles of the m first variable pitch spiral grooves gradually decrease along the direction of the variable pitch shaft away from the drive motor; wherein m is a positive integer.

[0012] In one embodiment, the plurality of variable pitch spiral grooves further include n second variable pitch spiral grooves, the rotation direction of each of the second variable pitch spiral grooves is opposite to the rotation direction of any of the first variable pitch spiral grooves, the m first variable pitch spiral grooves are arranged at a position of the variable pitch shaft adjacent to the drive motor; the n second variable pitch spiral grooves are arranged at a position of the variable pitch shaft away from the drive motor; n is a positive integer, and m is equal to n.

[0013] In one of the embodiments, the battery cell discharge device further includes a clamping cylinder, and the number of the clamping cylinders is multiple, and each of the clamping cylinders is respectively connected to the corresponding slider.

[0014] In one embodiment, each of the sliders is connected to two clamping plates and two pressing cylinders, the two clamping plates are respectively arranged on both sides of the corresponding slider, and the two pressing cylinders are respectively arranged on both sides of the corresponding slider.

[0015] In one embodiment, each of the sliders is provided with a sliding embedding groove, and the guide rails are respectively slidably arranged in the sliding embedding grooves of the plurality of sliders.

[0016] In one embodiment, the clamping mechanism further includes a lifting frame assembly, the lifting frame assembly is arranged above the trough body, the discharge clamping part is connected to the lifting frame assembly, and the lifting frame assembly is used to control the discharge clamping part;

[0017] The discharge and clamping part includes a positive conductive plate and a negative conductive plate, and the positive conductive plate and the negative conductive plate are respectively connected to the lifting frame assembly.

[0018] In one embodiment, the lifting frame assembly includes a guide column, a fixed plate, a movable plate, a lifting cylinder and an elastic member, one end of the guide column is connected to the slot body, the fixed plate is connected to the other end of the guide column, the movable plate is provided with a sliding hole, the guide column is passed through the sliding hole, the lifting cylinder is connected to the fixed plate, the output end of the lifting cylinder is connected to the movable plate, the elastic member is sleeved on the guide column, one end of the elastic member abuts against the movable plate, the other end of the elastic member abuts against the slot body, and the positive conductive plate and the negative conductive plate are arranged on a side of the movable plate away from the fixed plate.

[0019] In one embodiment, the discharge mechanism includes a discharge water tank, a resistor assembly and a placement plate, the discharge water tank is provided with a receiving groove, the placement plate is covered on the discharge water tank, the resistor assembly is connected to the placement plate, one end of the resistor assembly is electrically connected to the positive conductive plate, and the other end of the resistor assembly is electrically connected to the negative conductive plate.

[0020] In one embodiment, the resistor assembly includes a positive pole, a negative pole and a resistance wire, and the number of the positive pole, the negative pole and the resistance wire are multiple, and the multiple positive poles and the multiple negative poles are alternately arranged, each of the resistance wires is respectively connected to the placement plate, and the main body of each of the resistance wires is arranged in the accommodating groove, the positive ends of the multiple resistance wires are sequentially connected to a positive pole, and the multiple positive poles are electrically connected to the positive conductive plate, the negative ends of the multiple resistance wires are sequentially connected to a negative pole, and the multiple negative poles are electrically connected to the negative conductive plate.

[0021] Compared with the prior art, the present invention has at least the following advantages:

[0022] 1. The above-mentioned battery cell discharge device drives the variable pitch shaft to rotate by driving the motor, and the multiple variable pitch spiral grooves drive the adjacent sliders to shorten the distance synchronously, thereby driving the multiple clamping plates to shorten the distance synchronously to clamp the battery cells, so that the battery cell discharge device can be adapted to clamp battery cells of different thicknesses, thereby increasing the applicability of the battery cell discharge device;

[0023] 2. The clamping mechanism clamps the multiple battery cells, and the pressing mechanism presses the multiple battery cells, so that the battery cell discharge device clamps the multiple battery cells tightly, and the discharge mechanism can discharge the multiple battery cells at the same time, thereby improving the discharge efficiency of the battery cells.

[0024] 3. Multiple resistance wires are respectively connected to multiple positive poles and multiple negative poles, multiple positive poles are connected to the positive conductive plate, multiple negative poles are connected to the negative conductive plate, the positive conductive plate and the negative conductive plate are respectively connected to the positive and negative poles of the battery cell for discharge. When the battery cell is discharged, the multiple resistance wires and the water in the containing tank simultaneously perform heat exchange, so that the discharge speed of the battery cell is improved, and the discharge efficiency of the battery cell is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of a battery cell discharge device according to an embodiment;

[0027] Figure 2 for Figure 1 A partial structural schematic diagram of a battery cell discharge device shown;

[0028] Figure 3 for Figure 1 Another partial structural schematic diagram of the battery cell discharge device shown;

[0029] Figure 4 for Figure 1 A schematic structural diagram of the clamping mechanism shown;

[0030] Figure 5 for Figure 4 A cross-sectional view of the clamping mechanism shown;

[0031] Figure 6 for Figure 1 A schematic diagram of a partial structure of the clamping assembly shown;

[0032] Figure 7 for Figure 1 Another partial structural schematic diagram of the clamping assembly is shown.

[0033] Reference numerals: 10-cell discharge device; 100-clamping mechanism; 110-slot body; 1101-installation slot; 120-housing; 1201-movable channel; 1202-sliding through slot; 130-clamping assembly; 131-variable wheelbase; 1311-spiral groove group; 1301-variable pitch spiral groove; 1302-first variable pitch spiral groove; 1303-second variable pitch spiral groove; 1304-sliding embedded slot; 132-driving motor; 133-sliding block; 1331-sliding arm; 134-guide rail; 135 - clamping plate; 140- clamping cylinder; 200- clamping mechanism; 210- discharge clamping part; 211- positive conductive plate; 212- negative conductive plate; 220- lifting frame assembly; 221- guide column; 222- fixed plate; 223- movable plate; 224- lifting cylinder; 225- elastic member; 2201- sliding hole; 300- discharge mechanism; 310- discharge water tank; 3101- receiving groove; 320- resistance assembly; 321- positive pole column; 322- negative pole column; 323- resistance wire; 330- placement plate. DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0037] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0038] like Figures 1 to 7As shown, a battery cell discharge device 10 of an embodiment of the present disclosure includes a clamping mechanism 100, a pressing mechanism 200 and a discharge mechanism 300. The clamping mechanism 100 includes a slot body 110, a shell 120 and a clamping assembly 130. The slot body 110 is provided with a mounting slot 1101. The shell 120 is arranged in the mounting slot 1101. An active channel 1201 is provided in the shell 120. The shell 120 is also provided with a sliding through slot 1202 connected to the active channel 1201.

[0039] Furthermore, the clamping assembly 130 includes a pitch-changing shaft 131, a driving motor 132, a slider 133, a guide rail 134 and a clamping plate 135. The pitch-changing shaft 131 is inserted into the movable channel 1201, and the pitch-changing shaft 131 is rotatably connected to the housing 120. The pitch-changing shaft 131 is fixedly connected to the output end of the driving motor 132. When the driving motor 132 is started, the driving motor 132 drives the pitch-changing shaft 131 to rotate in the movable channel 1201. A spiral groove group 1311 is provided in the circumference of the pitch-changing shaft 131, and a sliding arm 1331 is convexly provided on the slider 133. There are multiple sliders 133, sliding arms 1331 and clamping plates 135. The spiral groove group 1311 includes multiple pitch-changing thread grooves 1301. Each sliding arm 1331 is embedded in the corresponding pitch-changing thread groove 1301 through the sliding through groove 1202. The rotation of the pitch-changing shaft 131 drives the first pitch-changing spiral groove 1302 Rotation, the first variable pitch spiral groove 1302 acts on the sliding arm 1331, the guide rail 134 is connected to the shell 120, and multiple sliders 133 are arranged at intervals along the length direction of the guide rail 134. The sliding arm 1331 drives the multiple sliders 133 to slide along the extension direction of the guide rail 134; each clamping plate 135 is connected to the corresponding slider 133; the clamping mechanism 200 includes a discharge clamping part 210, and the discharge clamping part 210 is used to clamp the battery cell to be discharged; the clamping mechanism 200 controls the discharge clamping part 210 to clamp the battery cell to be discharged, and the discharge clamping part 210 is arranged corresponding to the battery cell to be discharged. When the battery cell is placed in the installation groove 1101, the positive and negative poles of the battery cell are located below the discharge clamping part 210; the discharge mechanism 300 is electrically connected to the discharge clamping part 210, and the electric energy in the battery cell can be continuously consumed when the circuits of the battery cell, the discharge clamping part 210 and the discharge mechanism 300 are connected.

[0040] In this embodiment, a plurality of sliders 133 are arranged in sequence and spaced apart, and the drive motor 132 is started to drive the pitch-changing shaft 131 to rotate, and the pitch-changing spiral groove 1301 controls the adjacent sliders 133 to move away from each other as the pitch-changing shaft 131 rotates, so that the distance between the clamping plates 135 connected to the adjacent sliders 133 is widened, and the operator places a plurality of battery cells between two adjacent clamping plates 135 in sequence, and starts the drive motor 132 to drive the pitch-changing shaft 131 to rotate in the opposite direction, so that the adjacent sliders 133 are close to each other, and the distance between the clamping plates 135 connected to the adjacent sliders 133 is reduced, and the two adjacent clamping plates are closed. The plate 135 clamps the battery cell; the clamping mechanism 200 drives the discharge clamping part 210 to descend. When the discharge clamping part 210 presses the battery cell, the discharge clamping part 210 contacts the positive and negative electrodes of the battery cell respectively, and an energized circuit is formed between the battery cell, the discharge clamping part 210 and the discharge mechanism 300, so that the battery cell is continuously discharged; after the discharge is completed, the clamping mechanism 200 drives the discharge clamping part 210 to rise, and the discharge clamping part 210 is separated from the positive and negative electrodes of the battery cell, and the driving motor 132 drives the variable pitch shaft 131 to rotate, so that the adjacent slider 133 drives the adjacent clamping plate 135 away from the released battery cell.

[0041] The above-mentioned battery cell discharge device 10 drives the variable pitch shaft 131 to rotate by the driving motor 132, and the multiple variable pitch spiral grooves 1301 drive the adjacent sliders 133 to shorten the distance synchronously, thereby driving the multiple clamping plates 135 to shorten the distance synchronously to clamp the battery cells, so that the battery cell discharge device 10 can be adapted to clamp battery cells of different thicknesses, thereby increasing the applicability of the battery cell discharge device 10; the multiple battery cells are clamped by the clamping mechanism 100, and the pressing mechanism 200 presses the multiple battery cells, so that the battery cell discharge device 10 clamps the multiple battery cells tightly, and the discharge mechanism 300 can discharge the multiple battery cells at the same time, thereby improving the discharge efficiency of the battery cells.

[0042] like Figure 6 and Figure 7As shown, in one embodiment, the multiple variable pitch spiral grooves 1301 include m first variable pitch spiral grooves 1302, the starting points of the m first variable pitch spiral grooves 1302 are arranged at intervals along the axial direction of the variable pitch shaft 131, the pitches of the m first variable pitch spiral grooves 1302 gradually decrease along the direction of the variable pitch shaft 131 away from the drive motor 132, and the thread lead angles of the m first variable pitch spiral grooves 1302 gradually decrease along the direction of the variable pitch shaft 131 away from the drive motor 132; wherein m is a positive integer. In this embodiment, the thread lead angle of the first variable pitch spiral groove 1302 located at the outermost side of the variable pitch shaft 131 is relatively large. When the variable pitch shaft 131 rotates, the sliding block 133 slides along the sliding through groove 1202 for a long distance. The thread lead angles of the m first variable pitch spiral grooves 1302 arranged in sequence along the direction of the variable pitch shaft 131 away from the drive motor 132 are reduced in sequence, so that the active displacements of the m sliding blocks 133 arranged in sequence along the direction of the variable pitch shaft 131 away from the drive motor 132 are reduced in sequence. When the variable pitch shaft 131 rotates, the sliding block 133 located on the outer side of the variable pitch shaft 131 slides along the sliding through groove 1202 for a longer distance than the adjacent inner sliding block 133. When the adjacent sliding blocks 133 slide along the direction of the variable pitch shaft 131 away from the drive motor 132, the distance between each adjacent sliding block 133 is synchronously reduced, so that the clamping plate 135 can clamp battery cells of different thicknesses.

[0043] like Figure 6 and Figure 7 As shown, in one embodiment, the multiple variable pitch spiral grooves 1301 also include n second variable pitch spiral grooves 1303, the rotation direction of each second variable pitch spiral groove 1303 is opposite to the rotation direction of any first variable pitch spiral groove 1302, the m first variable pitch spiral grooves 1302 are arranged at the position of the variable pitch shaft 131 adjacent to the drive motor 132; the n second variable pitch spiral grooves 1303 are arranged at the position of the variable pitch shaft 131 away from the drive motor 132; n is a positive integer, and m is equal to n. In this embodiment, when the pitch shaft 131 rotates, multiple sliders 133 arranged corresponding to the first pitch spiral groove 1302 are tightened along one end of the pitch shaft 131 toward the center position of the pitch shaft 131, and multiple sliders 133 arranged corresponding to the second pitch spiral groove 1303 are tightened along the other end of the pitch shaft 131 toward the center position of the pitch shaft 131, so that the battery cells are evenly distributed along the center of the pitch shaft 131, so that the force between the battery cells and the clamping mechanism 200 is more uniform when the clamping mechanism 200 clamps the battery cells.

[0044] like Figure 4As shown, in one embodiment, the battery cell discharge device 10 further includes a clamping cylinder 140, and the number of the clamping cylinders 140 is multiple, and each clamping cylinder 140 is respectively connected to a corresponding slider 133. In this embodiment, the clamping cylinder 140 can push the battery cell to be discharged to the discharge position, and the battery cell is clamped between the clamping cylinder 140 and the inner wall of the tank body, so that the discharge clamping part 210 can be accurately pressed on the positive and negative electrodes of the battery cell.

[0045] like Figure 4 As shown, in one embodiment, each slider 133 is connected to two clamping plates 135 and two pressing cylinders 140, and the two clamping plates 135 are respectively arranged on both sides of the corresponding slider 133, and the two pressing cylinders 140 are respectively arranged on both sides of the corresponding slider 133. In this embodiment, a plurality of battery cells can be placed along both sides of the housing 120, so that when the slider 133 slides, the clamping plates 135 on both sides can clamp the battery cells at the same time, and more battery cells can be placed in the installation groove 1101, thereby improving the discharge efficiency of the battery cell discharge device 10 for multiple battery cells.

[0046] like Figure 4 As shown, in one embodiment, each slider 133 is provided with a sliding embedding groove 1304, and the guide rail 134 slides through the sliding embedding grooves 1304 of the multiple sliders 133. In this embodiment, the sliding embedding groove 1304 is a special-shaped groove, and the guide rail 134 is adapted to be embedded in the sliding embedding groove 1304, so that the slider 133 can only slide along the extension direction of the guide rail 134, and the fit between the slider 133 and the guide rail 134 is tighter.

[0047] like Figure 3 As shown, in one embodiment, the pressing mechanism 200 further includes a lifting frame assembly 220, which is disposed above the tank body 110, and the discharge pressing part 210 is connected to the lifting frame assembly 220, and the lifting frame assembly 220 is used to control the discharge pressing part 210; the discharge pressing part 210 includes a positive conductive plate 211 and a negative conductive plate 212, and the positive conductive plate 211 and the negative conductive plate 212 are respectively connected to the lifting frame assembly 220. In this embodiment, the positive conductive plate 211 and the negative conductive plate 212 are disposed in parallel to the lifting frame assembly 220, so that the positive conductive plate 211 and the negative conductive plate 212 are respectively disposed above the positive and negative electrodes of the battery cells, so that when the lifting frame assembly 220 controls the positive conductive plate 211 and the negative conductive plate 212 to press the battery cells, the positive electrodes of the multiple battery cells are accurately in contact with the positive conductive plate 211, and the negative electrodes of the multiple battery cells are accurately in contact with the negative conductive plate 212.

[0048] like Figure 3As shown, in one embodiment, the lifting frame assembly 210 includes a guide column 221, a fixed plate 222, a movable plate 223, a lifting cylinder 224 and an elastic member 225, one end of the guide column 221 is connected to the slot body 110, the fixed plate 222 is connected to the other end of the guide column 221, the movable plate 223 is provided with a sliding hole 2201, the guide column 221 is penetrated by the sliding hole 2201, the lifting cylinder 224 is connected to the fixed plate 222, the output end of the lifting cylinder 224 is connected to the movable plate 223, the elastic member 225 is sleeved on the guide column 221, one end of the elastic member 225 abuts against the movable plate 223, and the other end of the elastic member 225 abuts against the slot body 110, and the positive conductive plate 221 and the negative conductive plate 222 are arranged on a side of the movable plate 223 away from the fixed plate 222. In this embodiment, the guide column 221 guides the movable plate 223 to move in the vertical direction, and the elastic member 225 can support the movable plate 223 so that the movable plate 223 is located above the slot body 110. When the lifting cylinder 224 contracts, the elastic member 225 abuts against the movable plate 223, so that the movable plate 223 can automatically reset to the position above the slot body 110, thereby preventing the movable plate 223 from obstructing the removal and placement of the battery cells.

[0049] like Figure 2 and Figure 3 As shown, in one embodiment, the discharge mechanism 300 includes a discharge water tank 310, a resistor assembly 320 and a placement plate 330. The discharge water tank 310 is provided with a receiving groove 3101, and the placement plate 330 is covered on the discharge water tank 310. The resistor assembly 320 is connected to the placement plate 330. One end of the resistor assembly 320 is electrically connected to the positive conductive plate 221, and the other end of the resistor assembly 320 is electrically connected to the negative conductive plate 222. In this embodiment, the positive conductive plate 221 and the negative conductive plate 222 connected to the battery cell are electrically connected to the positive terminal and the negative terminal of the resistor assembly 320 respectively. The battery cell discharges and is connected to the resistor assembly 320 to generate heat. The resistor assembly 320 is immersed in cooling water to exchange heat, so that the resistor assembly 320 is continuously cooled, so that the battery cell is discharged in a safe temperature environment.

[0050] like Figure 2As shown, in one embodiment, the resistance component 320 includes a positive pole 321, a negative pole 322 and a resistance wire 323. The number of the positive pole 321, the negative pole 322 and the resistance wire 323 are all multiple, and the multiple positive poles 321 and the multiple negative poles 322 are alternately arranged. Each resistance wire 323 is respectively connected to the placement plate 330, and the main body of each resistance wire 323 is arranged in the accommodating groove 3101. The positive ends of the multiple resistance wires 323 are sequentially connected to a positive pole 321, and the multiple positive poles 321 are all electrically connected to the positive conductive plate 221. The negative ends of the multiple resistance wires 323 are sequentially connected to a negative pole 322, and the multiple negative poles 322 are electrically connected to the negative conductive plate 222. In this embodiment, each positive electrode post 321 is connected to the positive end of multiple resistance wires 323, and each negative electrode post 322 is connected to the negative end of multiple resistance wires 323. More resistance wires 323 can be arranged on the placement plate 330. Multiple resistance wires 323 exchange heat with the water in the receiving tank 3101 at the same time, thereby improving the discharge efficiency of the battery cell.

[0051] Compared with the prior art, the present invention has at least the following advantages:

[0052] 1. The battery cell discharge device 10 drives the variable pitch shaft 131 to rotate by the driving motor 132, and the multiple variable pitch spiral grooves 1301 drive the adjacent sliders 133 to shorten the distance synchronously, thereby driving the multiple clamping plates 135 to shorten the distance synchronously to clamp the battery cell, so that the battery cell discharge device 10 can be adapted to clamp battery cells of different thicknesses, thereby increasing the applicability of the battery cell discharge device 10;

[0053] 2. The clamping mechanism 100 clamps multiple battery cells, and the pressing mechanism 200 presses multiple battery cells, so that the battery cell discharge device 10 clamps multiple battery cells tightly, and the discharge mechanism 300 can discharge multiple battery cells at the same time, thereby improving the discharge efficiency of the battery cells.

[0054] 3. Multiple resistance wires 323 are respectively connected to multiple positive poles 321 and multiple negative poles 322, multiple positive poles 321 are connected to the positive conductive plate 221, multiple negative poles 322 are connected to the negative conductive plate 222, the positive conductive plate 221 and the negative conductive plate 222 are respectively connected to the positive and negative poles of the battery cell for discharge, so that when the battery cell is discharged, the multiple resistance wires 323 and the water in the containing tank 3101 are heat exchanged at the same time, so that the discharge speed of the battery cell is improved, and the discharge efficiency of the battery cell is increased.

[0055] The above embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the disclosed patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the disclosed patent shall be subject to the attached claims.

Claims

1. A battery cell discharge device, characterized in that: It comprises a clamping mechanism (100), a pressing mechanism (200) and a discharging mechanism (300), The clamping mechanism (100) comprises a slot body (110), a shell (120) and a clamping assembly (130); the slot body (110) is provided with a mounting slot (1101); the shell (120) is arranged in the mounting slot (1101), a movable channel (1201) is provided in the shell (120), and the shell (120) is further provided with a sliding through slot (1202) connected to the movable channel (1201); the clamping assembly (130) comprises a pitch-changing shaft (131), a driving motor (132), a sliding block (133), a guide rail (134) and a clamping plate (135); the pitch-changing shaft (131) is passed through the movable channel (1201), the pitch-changing shaft (131) is rotatably connected to the shell (120), and the pitch-changing shaft (131) The variable pitch shaft (131) is fixedly connected to the output end of the driving motor (132); a spiral groove group (1311) is provided in the circumferential direction of the variable pitch shaft (131); a sliding arm (1331) is protruding from the slider (133); the slider (133), the sliding arm (1331) and the clamping plate (135) are all multiple in number; the spiral groove group (1311) includes multiple variable pitch spiral grooves (1301); one end of each sliding arm (1331) is embedded in the corresponding variable pitch spiral groove (1301) through the sliding through groove (1202); the guide rail (134) is connected to the housing (120); multiple sliders (133) are arranged at intervals along the length direction of the guide rail (134); and each clamping plate (135) is connected to the corresponding slider (133); The clamping mechanism (200) is provided with a discharge clamping portion (210), and the discharge clamping portion (210) is used to clamp the battery cell to be discharged; The discharge mechanism (300) is electrically connected to the discharge clamping portion (210).

2. The battery cell discharge device according to claim 1, characterized in that: The plurality of variable pitch spiral grooves (1301) include m first variable pitch spiral grooves (1302), the starting points of the m first variable pitch spiral grooves (1302) are arranged at intervals along the axial direction of the variable pitch shaft (131), the pitches of the m first variable pitch spiral grooves (1302) gradually decrease along the direction of the variable pitch shaft (131) away from the drive motor (132), and the thread lead angles of the m first variable pitch spiral grooves (1302) gradually decrease along the direction of the variable pitch shaft (131) away from the drive motor (132); wherein m is a positive integer.

3. The battery cell discharge device according to claim 2, characterized in that: The plurality of variable pitch spiral grooves (1301) further include n second variable pitch spiral grooves (1303), the rotation direction of each of the second variable pitch spiral grooves (1303) being opposite to the rotation direction of any of the first variable pitch spiral grooves (1302), the m first variable pitch spiral grooves (1302) being arranged at a position of the variable pitch shaft (131) adjacent to the drive motor (132); and the n second variable pitch spiral grooves (1303) being arranged at a position of the variable pitch shaft (131) away from the drive motor (132); and n is a positive integer, and m is equal to n.

4. The battery cell discharge device according to claim 1, characterized in that: The battery cell discharge device further comprises a pressing cylinder (140), the number of the pressing cylinders (140) is plural, and each of the pressing cylinders (140) is respectively connected to a corresponding slider (133).

5. The battery cell discharge device according to claim 4, characterized in that: Each of the sliders (133) is connected to two clamping plates (135) and two pressing cylinders (140); the two clamping plates (135) are respectively arranged on both sides of the corresponding slider (133); and the two pressing cylinders (140) are respectively arranged on both sides of the corresponding slider (133).

6. The battery cell discharge device according to claim 1, characterized in that: Each of the sliders (133) is provided with a sliding embedding groove (1304), and the guide rails (134) are respectively slidably arranged in the sliding embedding grooves (1304) of the plurality of sliders (133).

7. The battery cell discharge device according to claim 1, characterized in that: The clamping mechanism (200) further comprises a lifting frame assembly (220), wherein the lifting frame assembly (220) is arranged above the trough body (110), the discharge clamping portion (210) is connected to the lifting frame assembly (220), and the lifting frame assembly (220) is used to control the discharge clamping portion (210); The discharge clamping part (210) comprises a positive conductive plate (211) and a negative conductive plate (212), and the positive conductive plate (211) and the negative conductive plate (212) are respectively connected to the lifting frame assembly (220).

8. The battery cell discharge device according to claim 7, characterized in that: The lifting frame assembly (220) comprises a guide column (221), a fixed plate (222), a movable plate (223), a lifting cylinder (224) and an elastic member (225); one end of the guide column (221) is connected to the groove body (110); the fixed plate (222) is connected to the other end of the guide column (221); the movable plate (223) is provided with a sliding hole (2201); the guide column (221) is passed through the sliding hole (2201); the lifting cylinder (224) is connected to the groove body (110); The guide column (221) is connected to the fixed plate (222), the output end of the lifting cylinder (224) is connected to the movable plate (223), the elastic member (225) is sleeved on the guide column (221), one end of the elastic member (225) is abutted against the movable plate (223), and the other end of the elastic member (225) is abutted against the slot body (110), and the positive conductive plate (211) and the negative conductive plate (212) are arranged on a side of the movable plate (223) away from the fixed plate (222).

9. The battery cell discharge device according to claim 7, characterized in that: The discharge mechanism (300) comprises a discharge water tank (310), a resistor component (320) and a placement plate (330); the discharge water tank (310) is provided with a receiving groove (3101); the placement plate (330) is covered on the discharge water tank (310); the resistor component (320) is connected to the placement plate (330); one end of the resistor component (320) is electrically connected to the positive conductive plate (211); and the other end of the resistor component (320) is electrically connected to the negative conductive plate (212).

10. The battery cell discharge device according to claim 9, characterized in that: The resistor assembly (320) comprises a positive pole (321), a negative pole (322) and a resistance wire (323). The number of the positive pole (321), the negative pole (322) and the resistance wire (323) are all multiple. The multiple positive poles (321) and the multiple negative poles (322) are alternately arranged. Each resistance wire (323) is respectively connected to the placement plate (330). The main body of each resistance wire (323) is arranged in the accommodating groove (3101). The positive ends of the multiple resistance wires (323) are sequentially connected to a positive pole (321). The multiple positive poles (321) are electrically connected to the positive conductive plate (211). The negative ends of the multiple resistance wires (323) are sequentially connected to a negative pole (322). The multiple negative poles (322) are electrically connected to the negative conductive plate (212).

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