Sodium-ion battery bump detection device

Abstract

The invention relates to the field of battery testing devices, in particular to a sodium ion battery bump detection device which comprises a rack, two conveying belts are sequentially arranged on the rack, the conveying belts are driven by corresponding conveying motors to rotate, a limiting plate is further fixed to the portion, above the conveying belts, of the rack, and the limiting plate is arranged on the rack. A feeding groove is further fixed to the portion, on one side of the limiting plate, of the machine frame, a discharging hole is formed in the tail end of the feeding groove, a lead screw and a sliding rod are further arranged on the portion, above the feeding groove, of the machine frame, a sliding plate is arranged on the lead screw, the lead screw penetrates through the sliding plate and is in threaded connection with the sliding plate, and the lead screw is driven by a pushing motor to rotate. A sliding plate is arranged on the rack, a sliding rod is arranged on the sliding plate, the sliding rod penetrates through the sliding plate and is in sliding connection with the sliding plate, a pushing air cylinder is further fixed to the sliding plate, a pushing plate is fixed to the tail end of a piston rod of the pushing air cylinder, a rotary disc is arranged on the rack below the discharging hole, a plurality of sorting grooves are formed in the rotary disc, and the section of each sorting groove is of a trapezoidal structure. The device can automatically screen swelled batteries.

Description

Technical Field

[0001] The present invention relates to the field of battery testing devices, and in particular to a sodium ion battery bulge detection device. Background Art

[0002] With the increasing problems of environmental problems and insufficient supply of traditional fossil energy, clean energy has attracted more and more attention. For example, solar energy, wind energy, grid energy storage, etc. Among the many grid energy storage, lithium-ion batteries have quickly occupied the market with high energy density, low self-discharge and long service life. However, due to the limited storage and uneven distribution of lithium raw materials, the cost of lithium-ion batteries is high and cannot meet the needs of large-scale energy storage grids. Sodium-ion batteries have the same electrochemical principle as lithium-ion batteries, but their raw materials are abundant, widely distributed and cheap, and are expected to become the next generation of energy storage systems. The current problems with sodium ions are mainly due to the fact that commonly used positive electrode materials such as Prussian blue materials contain crystal water that is difficult to remove, and layered oxide materials are highly sensitive to environmental humidity and are very easy to absorb water during the preparation process. This results in the prepared positive electrode plate containing crystal water and adsorbed water. During the charging and discharging process, the water in the plate enters the electrolyte, and the water decomposes to produce gas, causing the soft-pack battery to swell and bulge. Before the sodium-ion battery is put on the market, the battery needs to be tested and the battery with bulging phenomenon should be picked out.

[0003] Patent application number: CN202321700947.4 discloses a battery bulging detection circuit and device, which is used to install a battery fixing module for a battery to be detected; a baffle is arranged on the surface of the battery to be detected, and the baffle is in contact with one surface of the battery to be detected; a battery bulging detection circuit is arranged at any two opposite sides of the baffle, and the battery bulging detection circuit includes a first detection circuit and a second detection circuit; the first detection circuit includes a signal transmitting unit D1, and the second detection circuit includes a signal receiving unit D2. Through this device, it is possible to timely and accurately detect whether the battery to be detected is bulging, thereby prompting the detection personnel. However, this type of detection device finally requires manual selection of bulging batteries, and manual selection reduces the test efficiency.

[0004] The present invention is proposed in view of the deficiencies in the prior art. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a sodium ion battery bulge detection device.

[0006] The present invention can be implemented by the following technical solutions:

[0007] The invention discloses a sodium ion battery bulge detection device, comprising a frame, two conveyor belts are arranged on the frame in sequence, the conveyor belts are driven to rotate by corresponding conveyor motors, a limit plate is fixed on the frame above the conveyor belt, a feeding trough is fixed on the frame on one side of the limit plate, a feeding hole is arranged at the end of the feeding trough, a screw rod and a sliding rod are arranged on the frame above the feeding trough, a slide plate is arranged on the screw rod, the screw rod passes through the slide plate and is threadedly connected to the slide plate, the screw rod is driven to rotate by a pushing motor, and the sliding rod passes through the slide plate and is slidably connected to the slide plate Then, a pushing cylinder is also fixed on the slide plate, a pushing plate is fixed to the end of the piston rod of the pushing cylinder, a turntable is arranged on the frame below the feeding hole, a plurality of material selection slots are arranged on the turntable, the cross-section of the material selection slots is a trapezoidal structure, pushing blocks are arranged in the material selection slots, a pushing rod is fixed on the pushing blocks, the pushing rod passes through the turntable and is slidably connected to the turntable, a positioning block is fixed to the end of the pushing rod, a spring is fixed between the positioning block and the turntable, a cam is fixed on the frame at a position corresponding to the positioning block, and a material blocking plate is fixed on the frame on one side of the turntable. After rows of batteries are produced, they move forward via conveyor belts. The rotation speeds of the two conveyor belts are different. When the batteries move from the slower conveyor belt to the faster conveyor belt, the adjacent batteries are pulled apart. After the front row of batteries reaches the limit plate position, the conveying motor stops, the pushing motor drives the screw to rotate, and the slide plate moves in the direction of the screw. The push plate contacts the batteries at the limit plate position and pushes the batteries to move. After the batteries move into the feeding trough, the outermost batteries reach the discharge hole position, and the outermost batteries slide down from the discharge hole position and fall into the selection trough of the turntable. Since the selection trough is a trapezoidal structure and the narrowest position of the selection trough is consistent with the width of the batteries, batteries without bulges can pass through the selection trough smoothly. The bulged batteries will be stuck in the material selection trough, and the push plate will push the batteries to the discharge hole position one by one. When the batteries are stuck in the material selection trough, the rotating motor will start, and the rotating motor will drive the turntable to rotate. The bulged batteries will rotate with the turntable. The spring pushes the positioning block against the cam. Due to the structural characteristics of the cam, the positioning block rotates with the turntable. During the process of the positioning block moving from the proximal end of the cam to the distal end of the cam, the push block moves in the material selection trough. When the push block moves, the push block pushes the batteries stuck in the material selection trough out of the material selection trough, automatically pushes the bulged batteries out of the material selection trough, and collects the bulged batteries. The device can automatically screen the bulged batteries and collect the bulged batteries separately from the batteries without bulges, which greatly improves the production efficiency of the batteries.

[0008] Preferably, a plurality of blocking cylinders are fixed on the frame between the two conveyor belts, and the ends of the piston rods of the blocking cylinders are fixed to the baffles. After a row of batteries moves from one conveyor belt to another, the blocking cylinders are started, the piston rods on the blocking cylinders are extended, and the baffles are lowered to block the next row of batteries from obstructing the battery test.

[0009] Preferably, guide plates are fixed on the frames on both sides above the conveyor belt.

[0010] Preferably, the positioning blocks are each provided with a roller, which contacts the cam via the roller.

[0011] Preferably, the racks on both sides below the turntable are respectively provided with a receiving belt and a recycling belt, which are driven to rotate by corresponding motors. Batteries without bulges fall onto the receiving belt and are collected by the receiving belt, and batteries with bulges fall onto the recycling belt and are collected by the recycling belt.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] The device can automatically screen out bulging batteries and collect bulging batteries separately from non-bulging batteries, eliminating the need for manual selection of bulging batteries and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is another structural schematic diagram of the present invention from another angle;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] In the figure: 1, frame; 2, conveyor belt; 3, conveying motor; 4, material blocking cylinder; 5, baffle plate; 6, limit plate; 7, feeding trough; 8, feeding hole; 9, slide bar; 10, screw rod; 11, pushing motor; 12, slide plate; 13, pushing cylinder; 14, pushing plate; 15, turntable; 16, material selection trough; 17, material blocking plate; 18, rotating motor; 19, pushing block; 20, pushing rod; 21, positioning block; 22, spring; 23, roller; 24, cam; 25, guide plate; DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below with reference to the accompanying drawings:

[0020] Embodiment 1:

[0021] like Figures 1 to 3As shown, the present embodiment discloses a sodium ion battery bulge detection device, comprising a frame 1, on which two conveyor belts 2 are sequentially arranged, and the conveyor belts 2 are driven to rotate by corresponding conveying motors 3, and a limit plate 6 is also fixed on the frame 1 above the conveyor belt 2, and a feeding trough 7 is also fixed on the frame 1 on one side of the limit plate 6, and a feeding trough 7 is provided at the end of the feeding trough 7. A feeding hole 8 is provided, and a screw rod 10 and a sliding rod 9 are also provided on the frame 1 above the feeding trough 7, and a slide plate 12 is provided on the screw rod 10, and the screw rod 10 passes through the slide plate 12 and is threadedly connected to the slide plate 12, and the screw rod 10 is driven to rotate by a pushing motor 11, and the sliding rod 9 passes through the slide plate 12 and is slidably connected to the slide plate 12, and the sliding rod 9 passes through the slide plate 12 and is slidably connected to the slide plate 12, and the sliding rod 9 passes through the slide plate 12 and is slidably connected to the slide plate 12. A pushing cylinder 13 is also fixed on the plate 12, and a pushing plate 14 is fixed to the end of the piston rod of the pushing cylinder 13. A turntable 15 is arranged on the frame 1 below the discharge hole 8, and a plurality of material selection troughs 16 are arranged on the turntable 15. The cross-section of the material selection trough 16 is a trapezoidal structure, and a pushing block 19 is arranged in the material selection trough 16. A pushing rod 20 is fixed on the pushing block 19, and the pushing rod 20 passes through the turntable 15 and is slidably connected to the turntable 15. A positioning block 21 is fixed to the end of the pushing rod 20, and a spring 22 is fixed between the positioning block 21 and the turntable 15. A cam 24 is also fixed on the frame 1 at a position corresponding to the positioning block 21, and a material blocking plate 17 is also fixed on the frame 1 on one side of the turntable 15. After rows of batteries are produced, they are moved forward by the conveyor belt 2. The rotation speeds of the two conveyor belts 2 are different. When the batteries move from the slower conveyor belt 2 to the faster conveyor belt 2, the adjacent batteries are pulled apart. After the front row of batteries reaches the position of the limit plate 6, the conveying motor 3 stops, and the pushing motor 11 drives the screw rod 10 to rotate. The slide plate 12 moves in the direction of the screw rod 10, and the push plate 14 contacts the battery at the position of the limit plate 6 and pushes the battery to move. After the battery moves into the feeding trough 7, the outermost battery reaches the position of the discharge hole 8, and the outermost battery slides from the discharge hole 8. The battery slides into the selection trough 16 of the turntable 15. Since the selection trough 16 is a trapezoidal structure and the narrowest position of the selection trough 16 is consistent with the width of the battery, the battery without bulging can pass through the selection trough 16 smoothly, and the battery with bulging will be stuck in the selection trough 16. The batteries are pushed to the position of the discharge hole 8 one by one in the slot 16 by the push plate 14. When the batteries are stuck in the selection slot 16, the rotating motor 18 is started, and the rotating motor 18 drives the turntable 15 to rotate. The bulging batteries rotate with the turntable 15. The spring 22 pushes the positioning block 21 to lean against the cam 24. Due to the structural characteristics of the cam 24, the positioning block 21 rotates with the turntable 15. During the process of the positioning block 21 moving from the proximal end of the cam 24 to the distal end of the cam 24, the push block 19 moves in the selection slot 16. When the push block 19 moves, the push block 19 pushes the batteries stuck in the selection slot 16 out of the selection slot 16, automatically pushes the bulging batteries out of the selection slot 16, and collects the bulging batteries. The device can automatically screen the bulging batteries and collect the bulging batteries separately from the batteries without bulging, which greatly improves the production efficiency of the batteries.

[0022] Wherein, guide plates 25 are fixed on the frame 1 on both sides above the conveyor belt 2 .

[0023] The positioning blocks 21 are each provided with a roller 23 which contacts the cam 24 via the roller 23 .

[0024] The racks 1 on both sides below the turntable 15 are respectively provided with a receiving belt and a recycling belt, which are driven to rotate by corresponding motors. Batteries without bulges fall onto the receiving belt and are collected by the receiving belt, and batteries with bulges fall onto the recycling belt and are collected by the recycling belt.

[0025] Embodiment 2:

[0026] This embodiment discloses a sodium ion battery bulge detection device. Based on the structure and principle of embodiment 1, a plurality of blocking cylinders 4 are fixed on the frame 1 between the two conveyor belts 2 of this embodiment, and the ends of the piston rods of the blocking cylinders 4 are fixed to the baffles 5. After a row of batteries moves from one conveyor belt 2 to another conveyor belt 2, the blocking cylinders 4 are started, the piston rods on the blocking cylinders 4 are extended, and the baffles 5 are lowered, and the baffles 5 are blocked to prevent the next row of batteries from hindering the battery test.

[0027] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the technical principles of the present invention. These changes, modifications, substitutions and variations should also be regarded as the scope of protection of the present invention.

Claims

1. A sodium ion battery bulge detection device, comprising a frame, characterized in that: Two conveyor belts are arranged on the frame in sequence, and the conveyor belts are driven to rotate by corresponding conveyor motors. A limit plate is fixed on the frame above the conveyor belt, and a feeding trough is fixed on the frame on one side of the limit plate. A feeding hole is arranged at the end of the feeding trough, and a screw rod and a sliding rod are arranged on the frame above the feeding trough. A slide plate is arranged on the screw rod, and the screw rod passes through the slide plate and is threadedly connected to the slide plate. The screw rod is driven to rotate by a pushing motor, and the sliding rod passes through the slide plate and is slidably connected to the slide plate. A pushing rod is also fixed on the slide plate. A material cylinder, a push plate is fixed to the end of the piston rod of the push cylinder, a turntable is arranged on the frame below the feed hole, a plurality of material selection slots are arranged on the turntable, the cross-section of the material selection slot is a trapezoidal structure, push blocks are arranged in the material selection slots, push rods are fixed on the push blocks, the push rods pass through the turntable and are slidably connected to the turntable, positioning blocks are fixed to the ends of the push rods, springs are fixed between the positioning blocks and the turntable, a cam is fixed on the frame at a position corresponding to the positioning block, and a material baffle plate is fixed on the frame on one side of the turntable.

2. The sodium ion battery bulge detection device according to claim 1, characterized in that: A plurality of material-blocking cylinders are also fixed on the frame between the two conveyor belts, and the ends of the piston rods of the material-blocking cylinders are all fixed to the baffle plates.

3. The sodium ion battery bulge detection device according to claim 1, characterized in that: Guide plates are fixed on the frames on both sides above the conveyor belt.

4. The sodium ion battery bulge detection device according to claim 1, characterized in that: The positioning blocks are all provided with rollers.

5. The sodium ion battery bulge detection device according to claim 1, characterized in that: The frames on both sides below the turntable are respectively provided with a receiving belt and a recycling belt, and the receiving belt and the recycling belt are driven to rotate by corresponding motors.

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