Degassing device and battery processing equipment

Abstract

The utility model discloses a degassing device and battery processing equipment, and relates to the technical field of battery processing, the degassing device comprises a rack, a pressure maintaining piece and a puncturing assembly, the rack is provided with an object placing table, and the object placing table is used for bearing a product; the pressure maintaining piece is movably arranged relative to the object placing table and is used for abutting against one side, deviating from the object placing table, of the product; and the puncturing assembly is connected to the rack and is used for puncturing the product. The scheme provided by the utility model is beneficial to improving the qualified rate of the soft package battery.

Description

Technical Field

[0001] The utility model relates to the technical field of battery processing, in particular to a degassing device and a battery processing device. Background Art

[0002] After the battery is injected with electrolyte, it needs to be charged for the first time to activate the active substances inside the battery. During this process, due to the chemical reaction of the electrolyte, a certain amount of gas will be generated inside the battery. Therefore, the battery needs to be degassed to meet the requirements of the battery before leaving the factory.

[0003] In the prior art, to degas soft-pack batteries, a puncture assembly is typically used to puncture a localized area of ​​the soft-pack battery, allowing the battery to release gas through the punctured area. However, due to the soft material of the soft-pack battery, it is prone to deformation during the degassing process, resulting in a decrease in the qualified rate of the soft-pack battery. Utility Model Content

[0004] The main purpose of the utility model is to provide a degassing device, which aims to ensure the pressure balance of soft-pack batteries and avoid deformation of the soft-pack batteries during the degassing process, which is conducive to improving the qualified rate of soft-pack batteries.

[0005] To achieve the above-mentioned purpose, the utility model proposes a degassing device, which includes a frame, a pressure-maintaining part and a puncture assembly. The frame is provided with a storage table, which is used to receive the product; the pressure-maintaining part is movably arranged relative to the storage table, and is used to abut against the side of the product away from the storage table; the puncture assembly is connected to the frame, and the puncture assembly is used to puncture the product.

[0006] In one embodiment, the pressure-maintaining member includes a first driving member, a first transmission member and a pressing portion, wherein the first driving member is connected to the frame, the first transmission member is transmission-connected to the first driving member, and the pressing portion is connected to the first transmission member so as to reciprocate in a direction approaching or away from the storage table so as to abut against the side of the product facing away from the storage table.

[0007] In one embodiment, a guide portion is protruded from one side of the placement table toward the pressing portion, the guide portion extends along the movement direction of the pressing portion, a guide hole is penetrated from one side of the pressing portion toward the guide portion, and the guide portion is inserted into the guide hole.

[0008] In one embodiment, a first hot pressing part and a second hot pressing part are respectively protruded from opposite sides of the placement table and the pressure maintaining part, the first hot pressing part is used to support the product, and the second hot pressing part is used to abut against the side of the product away from the first hot pressing part to hot press the product.

[0009] In one embodiment, the product includes an air bag portion and a main body portion that are connected to each other, the main body portion is used for the pressure maintaining part to abut, and the puncture assembly includes a first adsorption cover, a second adsorption cover and a bayonet, the first adsorption cover, the second adsorption cover and the bayonet are respectively movably connected to the frame, the first adsorption cover and the second adsorption cover also move in a direction of approaching or moving away from each other, and are located on opposite sides of the air bag portion, so as to be used for adsorbing and clamping the air bag portion, and the bayonet is also penetrated through the first adsorption cover for puncturing the air bag portion.

[0010] In one embodiment, the puncture assembly further includes a second driving member, a second transmission member and a plurality of stroke sensors, the second transmission member is connected to the second driving member for translation, the first adsorption cover and the bayonet are connected to the second transmission member, and the plurality of stroke sensors are arranged at intervals along the moving direction of the second transmission member to detect the translation stroke of the bayonet.

[0011] In one embodiment, the puncture assembly further includes a spring, one end of the spring is connected to the second transmission member, and the other end is connected to the first adsorption cover, and the first adsorption cover elastically abuts against the side of the air bag portion facing away from the second adsorption cover so that the bayonet is exposed from the first adsorption cover.

[0012] In one embodiment, there are multiple first adsorption covers, multiple second adsorption covers and multiple bayonets, and the multiple first adsorption covers, the multiple second adsorption covers and the multiple bayonets are spaced apart perpendicular to the moving direction, one first adsorption cover and one second adsorption cover are arranged on opposite sides of the product, and one bayonet is passed through one first adsorption cover.

[0013] In one embodiment, the degassing device further includes a sealing assembly, which includes a first heat seal and a second heat seal. The first heat seal and the second heat seal are respectively connected to the frame, located on opposite sides of the portion of the product suspended on the storage table, and are movably arranged in directions of approaching or moving away from each other to seal the edge of the portion of the product suspended on the storage table.

[0014] The utility model also provides a battery processing device, which includes a degassing device and a cutting device. The cutting device and the frame are spaced apart, and the cutting device is used to cut the air bag portion of the product.

[0015] In the technical solution of this utility model, during the degassing process of the soft-pack battery, the pressure-maintaining member maintains the pressure of the battery on the storage table, and then the puncture assembly punctures the soft-pack battery to release the gas from the soft-pack battery. During the degassing process, the pressure-maintaining effect of the pressure-maintaining member can ensure the pressure balance of the soft-pack battery, prevent the soft-pack battery from deforming during the degassing process, and help improve the qualified rate of the soft-pack battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0017] Figure 1 A schematic structural diagram of an embodiment of a battery processing device provided by the present utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure of the degassing component from one perspective;

[0019] Figure 3 for Figure 2 Schematic diagram of the structure of the degassing component from another perspective;

[0020] Figure 4 for Figure 2 A schematic diagram of the partial structure of the degassing component from another perspective;

[0021] Figure 5 for Figure 2 Schematic diagram of the partial structure of the degassing component;

[0022] Figure 6 for Figure 5 Schematic diagram of the partial structure of the first adsorption hood hidden in the middle degassing assembly;

[0023] Figure 7 for Figure 1 Schematic diagram of the structure of the cutting device.

[0024] Explanation of the accompanying figures: 100, battery processing equipment; 10, degassing device; 1, frame; 11, storage table; 111, first hot pressing part; 113, guide part; 3, pressure maintaining part; 331, first driving part; 333, first transmission part; 335, pressing part; 3351, second hot pressing part; 35, material receiving part; 5, puncture assembly; 511, second driving part; 513, second transmission part; 5131, limit block; 515, first adsorption cover; 517, stroke sensor; 531, third Driving member; 533, third transmission member; 535, second adsorption cover; 5351, air hole; 55, bayonet; 6, sealing assembly; 611, fourth driving member; 613, fourth transmission member; 615, first heat-sealing member; 631, fifth driving member; 633, fifth transmission member; 635, second heat-sealing member; 70, cutting device; 71, cutting cylinder; 73, cutter; 75, cutting table; 80, weighing device; 91, storage device; 93, material taking device; 94, barcode scanner; 95, product.

[0025] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] After the battery is injected with electrolyte, it needs to be charged for the first time to activate the active substances inside the battery. During this process, due to the chemical reaction of the electrolyte, a certain amount of gas will be generated inside the battery. Therefore, the battery needs to be degassed to meet the requirements of the battery before leaving the factory.

[0030] In the prior art, to degas soft-pack batteries, a puncture assembly is typically used to puncture a localized area of ​​the soft-pack battery, allowing the battery to release gas through the punctured area. However, due to the relatively soft material of the soft-pack battery, it is prone to deformation during the degassing process, resulting in a decrease in the qualified rate of the soft-pack battery.

[0031] In order to solve the above problems, the present invention proposes a degassing device 10, which aims to ensure the pressure balance of the soft-pack battery and avoid deformation of the soft-pack battery during the degassing process, which is conducive to improving the qualified rate of the soft-pack battery.

[0032] Reference Figures 1 to 7 In one embodiment of the present invention, the degassing device 10 includes a frame 1, a pressure-maintaining member 3 and a puncturing assembly 5. The frame 1 is provided with a storage table 11, and the storage table 11 is used to receive the product 95; the pressure-maintaining member 3 is movably arranged relative to the storage table 11, and is used to abut against the side of the product 95 away from the storage table 11; the puncturing assembly 5 is connected to the frame 1, and the puncturing assembly 5 is used to puncture the product 95.

[0033] Among them, the soft-pack battery generally includes a battery cell and an aluminum-plastic film. The aluminum-plastic film is used to enclose the battery cell to serve as the main body. In addition, the enclosing size of the aluminum-plastic film is relatively large, and the part that does not enclose the battery cell can be used as an air bag part. The gas of the soft-pack battery is temporarily stored in the air bag part and is used for the puncture component 5 to pierce and exhaust.

[0034] In the technical solution of the present utility model, during the degassing process of the soft-pack battery, the pressure-maintaining member 3 maintains pressure on the battery on the storage platform 11, and then the puncture assembly 5 punctures the soft-pack battery to release the gas from the soft-pack battery. During the degassing process, the pressure-maintaining effect of the pressure-maintaining member 3 can ensure the pressure balance of the soft-pack battery, prevent the soft-pack battery from deforming during the degassing process, and help improve the qualified rate of the soft-pack battery.

[0035] Reference Figure 2 In one embodiment of the present invention, the pressure-maintaining member 3 includes a first driving member 331, a first transmission member 333 and a pressing portion 335. The first driving member 331 is connected to the frame 1, the first transmission member 333 is transmission-connected to the first driving member 331, and the pressing portion 335 is connected to the first transmission member 333 to reciprocate in a direction approaching or away from the placement table 11 to abut against the side of the product 95 away from the placement table 11.

[0036] Among them, the first driving member 331 can be a driving motor, and the first transmission member 333 includes a screw, which is threadedly connected to the driving motor for telescopic translation, and the pressing part 335 is connected to the screw, thereby realizing movement in the direction of approaching or moving away from the storage platform 11.

[0037] In this embodiment, by directly connecting the pressing part 335 to the first transmission member 333, it is beneficial to ensure the transmission stability of the pressing part 335, so that the pressing process of the pressing part 335 is relatively smooth, thereby avoiding the pressing deformation of the soft-pack battery.

[0038] Reference Figures 1 to 7 In one embodiment of the present invention, a guide portion 113 is protruded from one side of the placement table 11 toward the pressing portion 335, and the guide portion 113 extends along the movement direction of the pressing portion 335. A guide hole is penetrated through the side of the pressing portion 335 toward the guide portion 113, and the guide portion 113 is passed through the guide hole.

[0039] In this embodiment, the guide portion 113 guides the movement of the pressing portion 335, which is conducive to achieving the flatness of the pressing portion 335 on the soft-pack battery and further avoiding deformation of the soft-pack battery during pressing.

[0040] Reference Figure 2 and Figure 4 In one embodiment of the present invention, a first hot pressing portion 111 and a second hot pressing portion 3351 are respectively protruded from opposite sides of the placement table 11 and the pressure maintaining part 3. The first hot pressing portion 111 is used to support the product 95, and the second hot pressing portion 3351 is used to abut against the side of the product 95 away from the first hot pressing portion 111 to hot press the product 95.

[0041] In this embodiment, hot pressing is performed on both sides of the soft-pack battery by the first hot pressing part 111 and the second hot pressing part 3351, which is beneficial to further ensure the pressure balance of the soft-pack battery, so as to ensure the stability of the shape of the soft-pack battery, thereby further avoiding deformation of the soft-pack battery.

[0042] Reference Figure 4 and Figure 6 In one embodiment of the present utility model, the product 95 includes an air bag portion and a main body portion connected to each other, the main body portion is used for the pressure maintaining member 3 to abut, and the puncture component 5 includes a first adsorption cover 515, a second adsorption cover 535 and a bayonet 55. The first adsorption cover 515, the second adsorption cover 535 and the bayonet 55 are respectively movably connected to the frame 1. The first adsorption cover 515 and the second adsorption cover 535 also move in directions approaching or moving away from each other, and are located on opposite sides of the air bag portion for adsorbing and clamping the air bag portion. The bayonet 55 is also penetrated through the first adsorption cover 515 for puncturing the air bag portion.

[0043] Among them, the main body is used to abut against the pressure-maintaining part 3 to ensure the shape stability of the soft-pack battery, and the air bag part is used for the bayonet 55 to pierce. After the air bag part is exhausted, the connection between the main body and the air bag part is heat-sealed in turn through the heat sealing component, and the air bag part is cut off from the main body through the cutting device 70 to achieve the finished product acquisition of the soft-pack battery in this process.

[0044] An air hole 5351 may be further provided on one side of the second adsorption cover 535 , which is connected to an external air pump through the air hole 5351 so as to achieve air suction in the puncture area of ​​the puncture portion through the second adsorption cover 535 .

[0045] In this embodiment, after the air bag portion is adsorbed and clamped by the first adsorption cover 515 and the second adsorption cover 535, the bayonet 55 is used to puncture the adsorption and clamping area, which is beneficial to prevent the soft-pack battery from being deformed as a whole during the pressure puncture process, thereby further preventing the soft-pack battery from being deformed.

[0046] Reference Figure 5 In one embodiment of the present invention, the puncture assembly 5 also includes a second driving member 511, a second transmission member 513 and a plurality of stroke sensors 517. The second transmission member 513 is connected to the second driving member 511 for translation. The first adsorption cover 515 and the bayonet 55 are connected to the second transmission member 513. The plurality of stroke sensors 517 are arranged at intervals along the moving direction of the second transmission member 513 to detect the translation stroke of the bayonet 55.

[0047] One side of the second transmission member 513 is further connected to a limit block 5131 . When the limit block 5131 passes through the limit slot of the travel sensor 517 , it provides a sensing signal to the travel sensor 517 .

[0048] The puncture assembly 5 also includes a third driving member 531 and a third transmission member 533. The third transmission member 533 is connected to the third driving member 531 for translation, and the second adsorption cover 535 is connected to the third transmission member 533 to move in a direction close to or away from the product 95.

[0049] In this embodiment, by providing a plurality of stroke sensors 517, the translation stroke of the bayonet 55 can be detected, thereby determining the translation stroke of the bayonet 55, thereby realizing the detection of the working state of the device, which is beneficial to ensure the stable production of soft-pack batteries.

[0050] Reference Figure 5 and Figure 6 In one embodiment of the present invention, the puncturing assembly 5 also includes a spring, one end of the spring is connected to the second transmission member 513, and the other end is connected to the first adsorption cover 515. The first adsorption cover 515 elastically abuts against the side of the air bag portion away from the second adsorption cover 535, so that the bayonet 55 is exposed from the first adsorption cover 515.

[0051] In this embodiment, the first adsorption cover 515 is driven by the translation of the second transmission member 513 to abut against the side of the air bag portion facing away from the second adsorption cover 535. The first adsorption cover 515 is retracted under the elastic force of the spring, so that the bayonet 55 moves relative to the direction of being exposed to the first adsorption cover 515, which is conducive to ensuring that the bayonet 55 fully penetrates the air bag portion, ensures sufficient exhaust of the soft-pack battery, and improves production efficiency.

[0052] Reference Figure 5 and Figure 6 In one embodiment of the present invention, there are multiple first adsorption covers 515, second adsorption covers 535 and bayonets 55, and multiple first adsorption covers 515, second adsorption covers 535 and bayonets 55 are respectively arranged at intervals perpendicular to the movement direction. One first adsorption cover 515 and one second adsorption cover 535 are arranged on opposite sides of the product 95, and one bayonet 55 is passed through one first adsorption cover 515.

[0053] In this embodiment, by adding multiple first adsorption covers 515, second adsorption covers 535 and bayonets 55, it is possible to simultaneously achieve piercing adsorption of multiple areas of the airbag portion, accelerate the exhaust speed of the soft-pack battery, and further improve production efficiency.

[0054] Reference Figure 4In one embodiment of the present invention, the degassing device 10 further includes a sealing assembly 6, which includes a first heat-sealing member 615 and a second heat-sealing member 635. The first heat-sealing member 615 and the second heat-sealing member 635 are respectively connected to the frame 1, and are located on opposite sides of the portion of the product 95 suspended on the placement table 11, and are movably arranged in directions of approaching or moving away from each other to seal the portion of the product 95 suspended on the placement table 11.

[0055] The sealing assembly 6 further includes a fourth driving member 611 and a fourth transmission member 613. The fourth transmission member 613 is connected to the fourth driving member 611 and drives the first heat-sealing member 615 to translate. The sealing assembly 6 further includes a fifth driving member 631 and a fifth transmission member 633. The fifth transmission member 633 is connected to the fifth driving member 631 and drives the second heat-sealing member 635 to translate.

[0056] In this embodiment, the degassing device 10 is further provided with a first heat seal 615 and a second heat seal 635. The relative movement of the first heat seal 615 and the second heat seal 635 enables edge sealing at the junction between the main body and the air pocket of the soft-pack battery. Therefore, the degassing device 10 also integrates the edge sealing function of the soft-pack battery, which helps avoid multiple transfers of the soft-pack battery, thereby further improving production efficiency.

[0057] The present invention also provides a battery processing device 100, comprising a degassing device 10 and a cutting device 70. The cutting device 70 is spaced apart from the frame 1 and is used to cut the air pockets of the product 95. The specific structure of the degassing device 10 is similar to that of the aforementioned embodiments. Since the present battery processing device 100 utilizes all the technical solutions of all of the aforementioned embodiments, it at least possesses all the beneficial effects of the technical solutions of the aforementioned embodiments, and therefore will not be further detailed here.

[0058] Among them, the cutting device 70 may include a cutting table 75, a cutting cylinder 71 and a cutter 73. The soft-pack battery is set on the cutting table 75. The cutter 73 is driven by the cutting cylinder 71 to cut the air bag part of the soft-pack battery to achieve the cutting off of the air bag part. Therefore, the same battery processing equipment 100 can also realize automatic cutting of soft-pack batteries, which is conducive to further improving the degree of automation of the equipment.

[0059] To sum up, in the battery processing equipment 100 of the embodiment of the present invention, the material storage device 91 is used to cache the soft-pack batteries. After the code is scanned by the code scanning gun 94, the material picking device 93 further transports the soft-pack batteries to the receiving part 35 of the degassing device 10. After the soft-pack batteries are successively degassed by the pressure maintaining part 3 and the piercing component, the heat sealing component is further used to achieve the edge sealing between the main body and the air bag part of the soft-pack batteries, and finally the soft-pack batteries are transferred to the cutting device 70 for cutting the air bag part to obtain the final product of this process.

[0060] Among them, after the soft-pack batteries are punctured for degassing and the air bags are cut, the soft-pack batteries can also be weighed by the weighing device 80 to monitor the weight changes of the soft-pack batteries, which is conducive to ensuring the quality consistency of the same batch of products 95.

[0061] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A degassing device, characterized in that: The degassing device comprises: A frame, wherein the frame is provided with a storage platform for receiving products; a pressure-maintaining member, the pressure-maintaining member being movably disposed relative to the storage platform and configured to abut against a side of the product facing away from the storage platform; and A puncture assembly is connected to the frame and is used to puncture the product.

2. The degassing device according to claim 1, characterized in that The pressure-maintaining member includes a first driving member, a first transmission member and a pressing part. The first driving member is connected to the frame, the first transmission member is transmission-connected to the first driving member, and the pressing part is connected to the first transmission member so as to reciprocate in the direction of approaching or moving away from the storage table to abut against the side of the product away from the storage table.

3. The degassing device according to claim 2, characterized in that A guide portion is protruded from one side of the storage platform toward the pressing portion, and the guide portion extends along the movement direction of the pressing portion. A guide hole is penetrated through the side of the pressing portion toward the guide portion, and the guide portion is inserted into the guide hole.

4. The degassing device according to claim 1, wherein The storage platform and the pressure-maintaining component are respectively provided with a first hot pressing part and a second hot pressing part on the opposite sides thereof. The first hot pressing part is used to support the product, and the second hot pressing part is used to abut against the side of the product away from the first hot pressing part to perform hot pressing on the product.

5. The degassing device according to any one of claims 1 to 4, characterized in that: The product includes an air bag portion and a main body portion that are connected to each other, the main body portion is used for the pressure-maintaining part to abut, and the puncture assembly includes a first adsorption cover, a second adsorption cover and a bayonet, the first adsorption cover, the second adsorption cover and the bayonet are respectively movably connected to the frame, the first adsorption cover and the second adsorption cover also move in the direction of approaching or moving away from each other, and are located on opposite sides of the air bag portion, so as to be used for adsorbing and clamping the air bag portion, and the bayonet is also penetrated through the first adsorption cover for puncturing the air bag portion.

6. The degassing device according to claim 5, characterized in that The puncture assembly also includes a second driving member, a second transmission member and a plurality of stroke sensors. The second transmission member is connected to the second driving member for translation. The first adsorption cover and the bayonet are connected to the second transmission member. The plurality of stroke sensors are arranged at intervals along the moving direction of the second transmission member to detect the translation stroke of the bayonet.

7. The degassing device according to claim 6, characterized in that The puncture assembly also includes a spring, one end of the spring is connected to the second transmission member, and the other end is connected to the first adsorption cover. The first adsorption cover elastically abuts against the side of the air bag portion facing away from the second adsorption cover to expose the bayonet from the first adsorption cover.

8. The degassing device according to claim 5, characterized in that There are multiple first adsorption covers, multiple second adsorption covers and multiple bayonets, and the multiple first adsorption covers, the second adsorption covers and the bayonets are respectively arranged at intervals perpendicular to the movement direction. One first adsorption cover and one second adsorption cover are arranged on opposite sides of the air bag part, and one bayonet is passed through one first adsorption cover.

9. The degassing device according to any one of claims 1 to 4, characterized in that: The degassing device also includes a sealing assembly, which includes a first heat-sealing member and a second heat-sealing member. The first heat-sealing member and the second heat-sealing member are respectively connected to the frame, located on opposite sides of the portion of the product suspended on the storage table, and are movably arranged in directions approaching or moving away from each other to seal the edge of the portion of the product suspended on the storage table.

10. A battery processing device, characterized in that: The battery processing equipment includes: The degassing device according to any one of claims 1 to 9; and A cutting device is provided at a distance from the frame, and is used for cutting the air bag portion of the product.

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