Battery standing and pressurizing device

Abstract

The utility model belongs to the technical field of battery manufacturing, and discloses a battery standing and pressurizing device. The battery standing and pressurizing device comprises a standing box, a storage rack and a pressurizing assembly, the storage rack is arranged in the standing box and comprises a plurality of layers of placing tables arranged at intervals in the vertical direction, each layer of placing table is used for placing a tray bearing a battery, and each layer of placing table is provided with a plurality of rotatable first rollers; the first roller is in rolling fit with the bottom surface of the tray, and the pressurizing assembly communicates with the standing box and is used for pressurizing the battery in the standing box. According to the battery standing pressurizing device provided by the utility model, when the tray is placed on the placing table, the first rollers on the placing table are in rolling fit with the bottom surface of the tray, so that sliding friction between the placing table and the tray is converted into rolling friction, the friction force is reduced, and the tray can be completely pushed into the placing table by very small force; and the purpose of saving time and labor is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery manufacturing technical field especially relates to a battery static pressure device. BACKGROUND

[0002] In the production process of the battery, the liquid injection is an essential process, and whether the electrolyte after the liquid injection is fully infiltrated is the key to the success of the battery liquid injection. Therefore, after the battery liquid injection, the battery standing process is needed to facilitate the battery to absorb the electrolyte. However, the speed of the battery absorbing the electrolyte under natural conditions is slow, the production efficiency is low, and it is not conducive to reducing the production cost of enterprises. Therefore, in the prior art, the static pressure device is usually used to complete the static pressure process of the battery.

[0003] In the prior art, the battery static pressure device usually comprises a standing box and a storage rack in the standing box, and the batteries after the liquid injection are carried by the tray in batches. When operating, the tray carrying the batteries in batches is placed on the placing table of the storage rack, and then the positive and negative pressure is applied in the standing box. However, the process of pushing the tray into the placing table is manual, and since the overall weight of the full tray is relatively large, the friction is large when pushing, and a large force is needed to completely push the tray into the placing table, which is time-consuming and laborious, and the efficiency is also relatively low.

[0004] Therefore, it is urgent to provide a battery static pressure device to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a battery static pressure device, which can solve the technical problems of time-consuming and laborious and low efficiency when pushing the tray into the placing table.

[0006] To achieve this purpose, the utility model adopts the following technical scheme:

[0007] The battery static pressure device comprises:

[0008] A standing box;

[0009] A storage rack is arranged in the standing box, and the storage rack comprises multiple layers of placing tables arranged at intervals in the vertical direction. The placing table of each layer is used for placing the tray carrying the battery. A plurality of first rollers rotatable are arranged on each placing table, and the first rollers are in rolling cooperation with the bottom surface of the tray.

[0010] A pressure assembly is in communication with the standing box and is used for pressurizing the battery in the standing box.

[0011] As an optional solution, the upper surface of the placement table is provided with a plurality of embedding grooves corresponding to the first rollers one by one, the first rollers are rotationally arranged in the embedding grooves, and the surface of the first roller protrudes from the upper surface of the placement table.

[0012] As an optional solution, the end of the placement table, through which the tray slides in, is provided with a stopper, and the stopper comprises:

[0013] a mounting seat fixed to the edge of the placement table;

[0014] a flap, the middle part of the flap is hinged to the mounting seat, and the bottom surface of the flap can abut against the mounting seat;

[0015] a second roller, at least one end of the flap near the placement table is rotationally provided with the second roller along the length direction of the flap, and the second roller is used to block the tray from sliding out of the placement table;

[0016] a resilient member, one end of the resilient member is connected with the mounting seat, and the other end is connected with the flap.

[0017] As an optional solution, a base and a lifting assembly arranged on the base are further included, the static box comprises a lifting cover and a bottom cover, the bottom cover is arranged on the base, the lifting cover is connected to the output end of the lifting assembly, and the lifting assembly is used to drive the lifting cover to rise to separate from the bottom cover or to drive the lifting cover to descend to close the bottom cover.

[0018] As an optional solution, a locking assembly is further included, the locking assembly comprises a locking ring and a rotary driving member, the locking ring is annularly arranged at the connection between the bottom cover and the lifting cover, the rotary driving member is arranged on the base, the output end of the rotary driving member is connected to the locking ring and is used to drive the locking ring to rotate, so as to realize the locking or unlocking of the bottom cover and the lifting cover.

[0019] As an optional solution, the inner wall of the locking ring is provided with a first protrusion, the outer wall of the bottom cover is provided with a second protrusion, the outer wall of the lifting cover is provided with a third protrusion corresponding in position to the second protrusion, and the first protrusion can coincide with or be dislocated from the second protrusion and the third protrusion, so as to realize the locking or unlocking of the bottom cover and the lifting cover.

[0020] As an optional solution, a limiting member is arranged on the periphery of the locking ring, a first detection member and a second detection member are respectively arranged on the base at a certain distance along the circumference of the locking ring, the first detection member and the second detection member are both in communication connection with the rotary driving member, and the limiting member is respectively in inductive cooperation with the first detection member and the second detection member.

[0021] As an optional scheme, the periphery of the locking ring is provided with a positioning block, the positioning block is provided with a positioning hole, a second supporting seat is vertically arranged on the base, and a positioning cylinder is fixed to the second supporting seat, and when the base cover is locked with the lifting cover, the output shaft of the positioning cylinder is inserted into the positioning hole.

[0022] As an optional scheme, at least two third supporting seats are uniformly and spacedly arranged on the base along the circumference of the locking ring, a slot is formed in the top end of the third supporting seat, the side edge of the locking ring is located in the slot, a third roller and a fourth roller are arranged on the third supporting seat, the third roller is rotationally arranged on the top of the third supporting seat and is in rolling cooperation with the side surface of the locking ring, and the fourth roller is rotationally arranged in the slot and is in rolling cooperation with the bottom surface of the locking ring.

[0023] As an optional scheme, the pressurizing assembly comprises:

[0024] A high-pressure nitrogen tank is communicated with the standing tank through a nitrogen conveying pipe and is used for conveying nitrogen into the standing tank.

[0025] A nitrogen recovery tank is communicated with the standing tank through a nitrogen recovery pipe and is used for recovering part of the nitrogen in the standing tank.

[0026] A vacuumizing tank is communicated with the standing tank through a vacuumizing pipe and is used for vacuumizing the standing tank.

[0027] A pressure relief pipe is communicated with the standing tank at one end and is communicated with the outside at the other end and is used for discharging another part of the nitrogen to the outside.

[0028] The utility model discloses beneficial effects:

[0029] The utility model provides a kind of battery standing pressurizing device, when operating, multiple batteries of multiple liquid injection are placed on tray, then each places one or more trays on the placing table of each layer of storage rack, again, standing tank is buckled to form closed standing cavity, then through pressurizing assembly, positive and negative pressure is applied to standing tank circulation, accelerates the absorption of battery to electrolyte. Wherein, when placing tray on placing table, first the side edge of tray is placed on placing table, then tray is pushed into placing table, when pushing, the bottom surface of the first roller on placing table and tray form rolling cooperation, so that the sliding friction between placing table and tray is changed into rolling friction, so reduce friction, need very small force to be able to push tray into placing table completely, reach the purpose of time-saving and labor-saving, provide feeding efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1It is the structural schematic view of the battery static pressure device after the lifting cover is hidden of the embodiment of the utility model;

[0031] Figure 2 It is the structural schematic view of the battery static pressure device of the embodiment of the utility model;

[0032] Figure 3 It is Figure 1 The partial close-up view of A in the middle;

[0033] Figure 4 It is the structural schematic view of the blocking device of the embodiment of the utility model;

[0034] Figure 5 It is the structural schematic view of the lifting cover of the embodiment of the utility model;

[0035] Figure 6 It is the cooperation schematic view of the bottom cover and the lock ring of the embodiment of the utility model;

[0036] Figure 7 It is Figure 1 The partial close-up view of B in the middle;

[0037] Figure 8 It is Figure 2 The partial close-up view of C in the middle.

[0038] In the figure:

[0039] 1, the static box; 11, the lifting cover; 111, the third protruding block; 112, the clamping plate; 114, the pressure gauge; 115, the safety valve; 12, the bottom cover; 121, the second protruding block; 122, the inlet and outlet pipe;

[0040] 2, the storage rack; 21, the placing table; 211, the embedded groove; 22, the first roller; 23, the blocking device; 231, the mounting seat; 232, the flap; 233, the second roller; 234, the elastic member;

[0041] 3, the pressure assembly; 31, the high-pressure nitrogen gas tank; 311, the nitrogen gas conveying pipe; 32, the nitrogen gas recovery tank; 321, the nitrogen gas recovery pipe; 33, the vacuumizing tank; 331, the vacuumizing pipe; 34, the pressure relief pipe; 35, the angle seat valve; 36, the main pipeline;

[0042] 4, the base; 41, the first supporting seat; 42, the second supporting seat; 43, the third supporting seat; 431, the insertion slot; 432, the third roller; 433, the fourth roller;

[0043] 5, the lifting assembly; 51, the lifting air cylinder; 52, the guide rod; 53, the linear bearing;

[0044] 6, locking assembly; 61, locking ring; 611, first protrusion; 62, rotating driving member; 63, limiting member; 64, first detection member; 65, second detection member; 66, positioning block; 661, positioning hole; 67, positioning cylinder. DETAILED DESCRIPTION

[0045] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0046] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0047] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0048] In the description of the embodiment, the terms "up", "down", "right", etc. The orientation or position relationship shown in the drawing is only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, so it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0049] The embodiment provides a battery static pressure device for static pressure of the battery. Specifically, as shown in Figures 1 to 3As shown, the battery static pressure device comprises a static box 1, a storage rack 2 and a pressure assembly 3. The static box 1 is provided with a static cavity, the storage rack 2 is arranged in the static cavity of the static box 1, and the storage rack 2 comprises multiple layers of placement tables 21 arranged in the vertical direction. Each layer of the placement tables 21 is used for placing a tray carrying batteries, and each layer of the placement tables 21 is provided with multiple rotatable first rollers 22 arranged in the vertical direction. The first rollers 22 are in rolling cooperation with the bottom surface of the tray. The pressure assembly 3 is in communication with the static box 1 and is used for pressurizing the batteries in the static box 1.

[0050] In operation, multiple batteries filled with electrolyte are placed on the trays, and then one or more trays are placed on each layer of the placement tables 21 of the storage rack 2. Then, the static box 1 is fastened to form a closed static cavity, and then the pressure assembly 3 is used to cyclically apply positive and negative pressure to the static box 1 to accelerate the absorption of the electrolyte by the batteries. When placing the tray on the placement table 21, one side of the tray is placed on the placement table 21, and then the tray is pushed into the placement table 21. When the tray is pushed in, the first rollers 22 on the placement table 21 are in rolling cooperation with the bottom surface of the tray, so that the sliding friction between the placement table 21 and the tray is changed to rolling friction, thereby reducing the friction. Therefore, a small force is required to completely push the tray into the placement table 21, which saves time and effort and improves the efficiency of loading.

[0051] In this embodiment, the tray is pushed into the placement table 21 along the X-axis direction, and the first rollers 22 are arranged in the Y-axis direction perpendicular to the pushing direction of the tray. In other embodiments, the pushing direction of the tray can be the Y-axis direction, and the first rollers 22 can be arranged in the X-axis direction. Figure 3 , the pushing direction of the tray is defined as the X-axis direction, and the Y-axis direction is perpendicular to the pushing direction of the tray in the horizontal plane. The first rollers 22 are arranged in four rows in the Y-axis direction, and each row includes multiple first rollers 22 arranged in the X-axis direction. The axis of each first roller 22 extends in the Y-axis direction. In the Y-axis direction, the two sides of the placement table 21 are each provided with a row of first rollers 22. The two rows of first rollers 22 are in rolling cooperation with the two opposite sides of the bottom surface of the tray, and the two rows of first rollers 22 are arranged from one end of the placement table 21 to the other end along the X-axis direction. The other two rows of first rollers 22 are located inside the two rows of first rollers 22, and each of the two rows includes three first rollers 22, which are arranged only at the end of the placement table 21 that first contacts the tray. In another alternative embodiment, the first rollers 22 can be arranged according to actual needs, which is not limited here.

[0052] In this embodiment, as shown in Figure 1 , the storage rack 2 comprises three layers of placement tables 21 to ensure the carrying capacity. In other embodiments, the storage rack 2 can also comprise two, four or more layers of placement tables 21, which can be adaptively arranged according to actual needs, which is not limited here.

[0053] Specifically, as shown in Figure 3As shown, the upper surface of the placement table 21 is provided with a plurality of embedding grooves 211 corresponding to the first rollers 22, the first rollers 22 are rotationally arranged in the embedding grooves 211, and the surface of the first rollers 22 protrudes from the upper surface of the placement table 21. Most of the first rollers 22 are installed in the embedding grooves 211, forming embedded installation, and a small part of the first rollers 22 protrudes from the upper surface of the placement table 21, forming rolling cooperation with the bottom surface of the tray, which not only reduces the friction, but also makes the overall structure more simple and compact.

[0054] Further, as shown in Figure 3 and Figure 4 The end of the placement table 21 for sliding the tray is provided with a stopper 23, the stopper 23 includes a mounting seat 231, a flap 232, a second roller 233 and an elastic member 234, the mounting seat 231 is fixed to the edge of the placement table 21, the middle part of the flap 232 is hinged to the mounting seat 231, and the bottom surface of the flap 232 can abut and limit the mounting seat 231, at least one end of the flap 232 close to the placement table 21 is rotationally provided with the second roller 233, one end of the elastic member 234 is connected with the mounting seat 231, and the other end is connected with the flap 232, the elastic member 234 can be a spring, and when the spring is in a natural state, the flap 232 is in an inclined state, and at this time the second roller 233 is used to block the tray from sliding out of the placement table 21.

[0055] In this embodiment, the two ends of the flap 232 are both rotationally provided with the second roller 233, the second roller 233 close to the placement table 21 is used to block the tray from sliding out of the placement table 21, and the second roller 233 away from the placement table 21 is used to ensure the balance of the flap 232, and the elastic member 234 is in a vertical state and connected to the end of the flap 232 closer to the placement table 21.

[0056] When the tray is placed on the placement table 21, the tray first passes through the stopper 23, and the tray gradually advances along the flap 232, when the bottom of the tray contacts the second roller 233, the elastic member 234 gradually contracts, the flap 232 rotates from the inclined state to the horizontal state, which facilitates the tray to pass through the second roller 233 and push into the placement table 21, when the tray is completely pushed into the placement table 21, the elastic member 234 resets the flap 232 to the inclined state, after the flap 232 returns to the inclined state, the upper surface of the second roller 233 is higher than the upper surface of the first roller 22, thereby blocking the tray and preventing the tray from sliding out of the placement table 21 on one side, and the other side of the tray can be blocked by the stop block or the stop plate of the placement rack 2.

[0057] It is understandable that the pressurizing component 3 applies positive and negative pressure to the battery in the settling box 1, mainly by introducing nitrogen gas to provide positive pressure. However, existing battery settling pressurizing devices do not have a nitrogen gas recovery function. If the nitrogen gas is directly discharged into the outside world after use, it will pollute the environment.

[0058] To solve the above problems, such as Figure 1 and Figure 2 As shown, the pressurization assembly 3 provided in this embodiment includes a high-pressure nitrogen tank 31, a nitrogen recovery tank 32, a vacuum tank 33, and a pressure relief pipe 34 arranged side by side. The high-pressure nitrogen tank 31 is connected to the settling chamber 1 through a nitrogen delivery pipe 311 for supplying nitrogen into the settling chamber 1. The nitrogen recovery tank 32 is connected to the settling chamber 1 through a nitrogen recovery pipe 321 for recovering a portion of the nitrogen in the settling chamber 1. The vacuum tank 33 is connected to the settling chamber 1 through a vacuum pipe 331 for evacuating the settling chamber 1 to a vacuum state. One end of the pressure relief pipe 34 is connected to the settling chamber 1, and the other end is connected to the outside to allow another portion of the nitrogen to be discharged to the outside. Angle seat valves 35 are provided on the nitrogen delivery pipe 311, the nitrogen recovery pipe 321, the vacuum pipe 331, and the pressure relief pipe 34 to control the opening and closing of the nitrogen delivery pipe 311, the nitrogen recovery pipe 321, the vacuum pipe 331, and the pressure relief pipe 34, respectively.

[0059] During the static pressurization process, firstly, open the angle seat valve 35 on the nitrogen delivery pipe 311. High-pressure nitrogen from the high-pressure nitrogen tank 31 is then delivered to the static chamber 1 via the nitrogen delivery pipe 311. After maintaining high pressure for the set time, close the angle seat valve 35 on the nitrogen delivery pipe 311 and open the angle seat valve 35 on the nitrogen recovery pipe 321 to recover nitrogen into the nitrogen recovery tank 32. Once the pressure in the nitrogen recovery tank 32 is equal to that in the static chamber 1, close the angle seat valve 35 on the nitrogen recovery pipe 321 and open the angle seat valve on the pressure relief pipe 34. The seat valve 35 is used to discharge the remaining nitrogen gas in the settling chamber 1. After the pressure is released, the angle seat valve 35 on the pressure relief pipe 34 is closed, and the angle seat valve 35 on the vacuum pipe 331 is opened. The vacuum tank 33 evacuates the settling chamber 1 through the vacuum pipe 331. After maintaining the vacuum for a set time, the angle seat valve 35 on the vacuum pipe 331 is closed, and the angle seat valve 35 on the pressure relief pipe 34 is opened. Once the gas pressure in the settling chamber 1 returns to normal, one settling pressurization cycle is completed. The pressurization time and number of cycles can be adjusted adaptively for different battery specifications.

[0060] Therefore, this embodiment uses a high-pressure nitrogen tank 31, a nitrogen recovery tank 32, and a vacuum tank 33 to apply positive pressure, recover nitrogen, and vacuum the battery in the settling box 1, thereby achieving the battery's static pressurization process. Furthermore, by setting up the nitrogen recovery tank 32 and the nitrogen recovery pipe 321, some nitrogen can be recovered and reused, thus saving the cost of producing nitrogen and reducing exhaust pollution.

[0061] Further, as shown in Figure 1 and Figure 2 Nitrogen delivery pipe 311, nitrogen recovery pipe 321, vacuum pipe 331 and pressure relief pipe 34 are all located above the static tank 1, and nitrogen delivery pipe 311, nitrogen recovery pipe 321, vacuum pipe 331 and pressure relief pipe 34 are collected to form a total pipe 36, the total pipe 36 is bent downward and extends to the bottom of the static tank 1, the bottom of the static tank 1 is provided with an inlet and outlet pipe 122, the inlet and outlet pipe 122 is communicated with the total pipe 36. In this way, the pipeline layout is reasonable, the number of pipelines at the bottom of the static tank 1 is reduced, and the pipeline connection is prevented from being chaotic.

[0062] Further, as shown in Figure 2 The static tank 1 is provided with a pressure gauge 114, which is communicated with the inside of the static tank 1, for detecting the positive and negative pressure inside the static tank 1. The static tank 1 is also provided with a safety valve 115, which is communicated with the static tank 1, for relieving pressure when the pressure inside the static tank 1 is higher than the preset value, preventing the static tank 1 from bursting, and improving safety.

[0063] As shown in Figure 1 and Figure 2 The battery static pressure device also includes a base 4, the static tank 1 is placed on the base 4, and a plurality of feet are installed at the bottom of the base 4 to ensure that it can stand stably on the ground.

[0064] Further, as shown in Figure 1 The battery static pressure device also includes a lifting assembly 5, which is provided on the base 4, as shown in Figure 2 , Figure 5 and Figure 6 The static tank 1 includes a lifting cover 11 and a bottom cover 12, the bottom cover 12 is provided on the base 4, the storage rack 2 is installed on the bottom cover 12, the inlet and outlet pipe 122 is provided on the bottom cover 12, and the lifting cover 11 is connected to the output end of the lifting assembly 5, the lifting assembly 5 is used to drive the lifting cover 11 to rise to separate from the bottom cover 12, or to drive the lifting cover 11 to descend to close the bottom cover 12. When the battery reaches the static tank 1, the lifting assembly 5 is started, the lifting cover 11 is lifted to the maximum height, then the tray carrying a plurality of batteries is placed on each layer of the placing table 21 in turn, then the lifting assembly 5 drives the lifting cover 11 to descend to close the bottom cover 12, forming a closed static chamber, and finally the battery in the static chamber is pressurized by the pressurizing assembly 3. The above-mentioned static tank 1 has simple structure and is convenient to use.

[0065] Among them, as shown in Figure 1As shown, the lifting assembly 5 includes at least one lifting cylinder 51 fixed to the base 4 and located beside the static box 1, and a fixed plate is arranged on the side wall of the lifting cover 11 and connected to the output end of the lifting cylinder 51. In this embodiment, the lifting assembly 5 includes two lifting cylinders 51 arranged diagonally with respect to the lifting cover 11, which ensures that the lifting cover 11 is uniformly stressed and improves the stability of the lifting cover 11 during lifting. In other embodiments, the lifting assembly 5 can also include one, three or more lifting cylinders 51, which can be flexibly arranged according to actual needs, and no specific limitation is made herein.

[0066] Further, as shown in Figure 1 and Figure 2 , the lifting assembly 5 further includes a plurality of guide rods 52 and linear bearings 53, the guide rods 52 are vertically arranged on the base 4, the side of the lifting cover 11 is provided with a plurality of clamping plates 112, the linear bearings 53 are fixed to the clamping plates 112, and the guide rods 52 are arranged through the linear bearings 53. When the lifting cover 11 moves up and down, the linear bearings 53 are driven to slide up and down along the guide rods 52. Through the cooperation of the guide rods 52 and the linear bearings 53, the lifting cover 11 is only lifted along the length direction of the guide rods 52, which prevents the lifting cover 11 from deviating during lifting, so that the lifting cover 11 cannot be closed with the bottom cover 12.

[0067] Specifically, in this embodiment, four guide rods 52 are arranged on the base 4, and the four guide rods 52 are respectively located at the four corner positions of the bottom cover 12. Each guide rod 52 can be slidably connected with one, two or more linear bearings 53 to achieve better guiding effect and ensure the stability and accuracy of the lifting cover 11 during lifting. In other embodiments, two, three or other number of guide rods 52 can also be arranged on the base 4, which can be flexibly arranged according to actual needs, and no specific limitation is made herein.

[0068] Further, as shown in Figure 2 and Figure 8 , the battery static pressure device further includes a locking assembly 6, the locking assembly 6 includes a locking ring 61 and a rotary driving member 62, the locking ring 61 is arranged around the connection between the bottom cover 12 and the lifting cover 11, and the rotary driving member 62 is arranged on the base 4. The output end of the rotary driving member 62 is connected to the locking ring 61 and used to drive the locking ring 61 to rotate, so as to realize the locking or unlocking of the bottom cover 12 and the lifting cover 11. By driving the locking ring 61 to rotate forward or reverse through the rotary driving member 62, the locking or unlocking of the bottom cover 12 and the lifting cover 11 can be realized, which ensures the airtightness between the bottom cover 12 and the lifting cover 11 and improves the effect of subsequent positive and negative pressure.

[0069] In this embodiment, as shown in Figure 7As shown, the rotary driving member 62 is a cylinder, the output end of the cylinder is hinged with the lock ring 61, and the piston rod of the cylinder drives the lock ring 61 to rotate forward or reversely by extending or retracting, which is simple in structure and easy to realize. In other alternative embodiments, the rotary driving member 62 can also be any other driving structure capable of outputting rotary motion, which is not specifically limited here.

[0070] Specifically, as shown in Figure 5 、 Figure 6 and Figure 8 , the inner wall of the lock ring 61 is provided with a plurality of first protrusions 611, the plurality of first protrusions 611 are equidistantly arranged along the circumference of the lock ring 61, the outer wall of the bottom cover 12 is provided with a plurality of second protrusions 121, the plurality of second protrusions 121 are equidistantly arranged along the circumference of the bottom cover 12, the outer wall of the lifting cover 11 is provided with a plurality of third protrusions 111 corresponding to the positions of the second protrusions 121, the plurality of third protrusions 111 are equidistantly arranged along the circumference of the lifting cover 11, the first protrusions 611, the second protrusions 121 and the third protrusions 111 correspond to each other one by one, and the first protrusions 611 can coincide with or be misaligned with the second protrusions 121 and the third protrusions 111 to realize the locking or unlocking of the bottom cover 12 and the lifting cover 11. That is, when locked, the first protrusions 611, the second protrusions 121 and the third protrusions 111 coincide with each other, and when unlocked, the first protrusions 611 are misaligned with the second protrusions 121 and the third protrusions 111.

[0071] Specifically, when the lifting cylinder 51 drives the lifting cover 11 to descend to close with the bottom cover 12, the third protrusions 111 outside the lifting cover 11 pass through the adjacent two first protrusions 611 and abut against and coincide with the second protrusions 121, at this time, the static cavity is formed between the lifting cover 11 and the bottom cover 12, then the rotary driving member 62 drives the lock ring 61 to rotate by a certain angle, so that the first protrusions 611 coincide with the second protrusions 121 and the third protrusions 111, at this time, the third protrusions 111 are clamped between the first protrusions 611 and the second protrusions 121, realizing the locking between the bottom cover 12 and the lifting cover 11, so that the static cavity forms a sealed environment. When unlocking, the rotary driving member 62 drives the lock ring 61 to reversely rotate by a certain angle, so that the first protrusions 611 are misaligned with the second protrusions 121 and the third protrusions 111, at this time, the first protrusions 611 release the restriction of the third protrusions 111, that is, the bottom cover 12 and the lifting cover 11 are in an unlocked state, and the lifting cylinder 51 can drive the lifting cover 11 to lift.

[0072] Further, as shown in Figure 8As shown, the periphery of the lock ring 61 is provided with a limiting piece 63, and the base 4 is provided with a first detection piece 64 and a second detection piece 65 at intervals along the circumference of the lock ring 61, specifically, the base 4 is provided with a first support seat 41 at intervals along the circumference of the lock ring 61, and the first detection piece 64 and the second detection piece 65 are respectively installed on the corresponding first support seat 41, and the first detection piece 64 and the second detection piece 65 are in communication connection with the rotary driving piece 62, and the limiting piece 63 is respectively inductive cooperation with the first detection piece 64 and the second detection piece 65. Among them, the first detection piece 64 and the second detection piece 65 can be non-contact proximity switches, or can be contact switches, which are not limited here.

[0073] In combination Figure 8 , the first detection piece 64 and the second detection piece 65 correspond to the unlocking position and the locking position of the lock ring 61 respectively. When the rotary driving piece 62 drives the lock ring 61 to rotate to the locking position, the second detection piece 65 senses the limiting piece 63, triggering the rotary driving piece 62 to stop working; when the rotary driving piece 62 drives the lock ring 61 to rotate to the unlocking position in Figure 8 , the first detection piece 64 senses the limiting piece 63, triggering the rotary driving piece 62 to stop working, thereby ensuring the accuracy of the rotation of the lock ring 61.

[0074] Further, as shown in Figure 8 , the periphery of the lock ring 61 is provided with a positioning block 66, the positioning block 66 is provided with a positioning hole 661, and the base 4 is provided with a second support seat 42, and the second support seat 42 is fixed with a positioning cylinder 67, when the bottom cover 12 is locked with the lifting cover 11, the output shaft of the positioning cylinder 67 is inserted into the positioning hole 661. That is, when the rotary driving piece 62 drives the lock ring 61 to rotate to the locking position, the second detection piece 65 senses the limiting piece 63, triggering the rotary driving piece 62 to stop working, and at the same time triggering the positioning cylinder 67 to work, the output shaft of the positioning cylinder 67 extends and is inserted into the positioning hole 661, locking the position of the lock ring 61, realizing the stable locking between the bottom cover 12 and the lifting cover 11.

[0075] Further, as shown in Figure 1 and Figure 7As shown, the base 4 is provided with at least two third support seats 43 which are uniformly and spaced apart along the circumference of the locking ring 61, the top end of the third support seat 43 is provided with a slot 431, the side of the locking ring 61 is located in the slot 431, the third support seat 43 is provided with a third roller 432 and a fourth roller 433, the third roller 432 is rotatably arranged at the top of the third support seat 43 and is in rolling cooperation with the side of the locking ring 61, and the fourth roller 433 is rotatably arranged in the slot 431 and is in rolling cooperation with the bottom surface of the locking ring 61. Through the at least two third support seats 43 and the third roller 432 and the fourth roller 433 arranged on the third support seat 43, a rotating track can be provided for the locking ring 61, and the bottom support and the side abutment of the locking ring 61 are provided, so that the locking ring 61 is not easy to deviate, and the accuracy of the rotation of the locking ring 61 is ensured. During the rotation of the locking ring 61, the third roller 432 and the fourth roller 433 rotate with the rotation of the locking ring 61 to form the rolling friction between the third roller 432, the fourth roller 433 and the locking ring 61 respectively, which reduces the friction resistance, prolongs the service life of the locking ring 61 and the third support seat 43, and improves the stability of the rotation of the locking ring 61. The number of the third support seat 43 can be two, three or more, which can be adaptively set according to actual needs, and is not limited here.

[0076] The working principle of the battery static pressure device provided by the embodiment is as follows:

[0077] 1) When the battery reaches the static box 1, the lifting cylinder 51 is started to lift the lifting cover 11 to the limit height, and then the tray carrying a plurality of batteries is placed on each layer of the placing table 21 in turn, and then the lifting cylinder 51 drives the lifting cover 11 to descend to close with the bottom cover 12, the third protrusion 111 outside the lifting cover 11 abuts and overlaps with the second protrusion 121 outside the bottom cover 12, forming a closed static cavity.

[0078] 2) The rotary driving member 62 extends to drive the locking ring 61 to rotate by a certain angle, and when the second detection member 65 senses the limiting member 63, the rotary driving member 62 is triggered to stop acting, and the positioning cylinder 67 is triggered to act, the output shaft of the positioning cylinder 67 extends and inserts into the positioning hole 661, and the position of the locking ring 61 is locked, at this time, the first protrusion 611 overlaps with the second protrusion 121 and the third protrusion 111, realizing the locking between the bottom cover 12 and the lifting cover 11, so that the static cavity forms a sealed environment.

[0079] 3) Open the angle seat valve 35 on the nitrogen delivery pipe 311. The high-pressure nitrogen in the high-pressure nitrogen tank 31 is delivered to the settling box 1 through the nitrogen delivery pipe 311. After maintaining the high pressure for the set time, close the angle seat valve 35 on the nitrogen delivery pipe 311 and open the angle seat valve 35 on the nitrogen recovery pipe 321 to recover the nitrogen into the nitrogen recovery tank 32 through the nitrogen recovery pipe 321. After the pressure in the nitrogen recovery tank 32 is equal to that in the settling box 1, close the angle seat valve 35 on the nitrogen recovery pipe 321 and open the vent. The angle seat valve 35 on the pressure relief pipe 34 is used to discharge the remaining nitrogen gas in the settling chamber 1. After the pressure is released, the angle seat valve 35 on the pressure relief pipe 34 is closed, and the angle seat valve 35 on the vacuum pipe 331 is opened. The vacuum tank 33 evacuates the settling chamber 1 through the vacuum pipe 331. After maintaining the vacuum for a set time, the angle seat valve 35 on the vacuum pipe 331 is closed, and the angle seat valve 35 on the pressure relief pipe 34 is opened. Once the gas pressure in the settling chamber 1 returns to normal, one settling and pressurizing cycle of the battery in the settling chamber is completed.

[0080] 3) After three cycles of static pressurization, the positioning cylinder 67 retracts to release the positioning block 66, and the rotation drive 62 retracts to pull the locking ring 61 to rotate in the opposite direction by a certain angle. When the first detection element 64 senses the limit element 63, it triggers the rotation drive 62 to stop. At this time, the first protrusion 611 is misaligned with the second protrusion 121 and the third protrusion 111, thereby unlocking the bottom cover 12 and the lifting cover 11. Then, the lifting cylinder 51 drives the lifting cover 11 to rise to the limit height and removes the tray carrying the battery from the placement platform 21.

[0081] 4) Repeat the above process to complete the static pressurization process of batch batteries.

[0082] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A battery resting pressurization device, characterized by, The utility model relates to a battery storage device, including: a static box (1); a storage rack (2) arranged in the static box (1), the storage rack (2) includes multiple layers of placement tables (21) arranged in the vertical direction, each layer of the placement table (21) is used for placing a tray carrying a battery, and a plurality of rotatable first rollers (22) are arranged on each layer of the placement table (21), the first roller (22) is rolling matched with the bottom surface of the tray; a pressurizing assembly (3) communicated with the static box (1) and used for pressurizing the battery in the static box (1).

2. The battery resting pressurization device of claim 1, wherein The upper surface of the placement table (21) is provided with a plurality of embedding grooves (211) corresponding to the first rollers (22), the first roller (22) is rotatably arranged in the embedding groove (211), and the surface of the first roller (22) protrudes from the upper surface of the placement table (21).

3. The battery resting pressurization device of claim 1, wherein One end of the placement table (21) for sliding the tray is provided with a stopper (23), and the stopper (23) includes: a mounting seat (231) fixed to the edge of the placement table (21); a rocker (232), the middle part of the rocker (232) is hinged to the mounting seat (231), and the bottom surface of the rocker (232) can abut against the mounting seat (231); a second roller (233), at least one end near the placement table (21) of the rocker (232) along the length direction is rotatably provided with the second roller (233), and the second roller (233) is used for blocking the tray from sliding out of the placement table (21); a resilient member (234), one end of the resilient member (234) is connected with the mounting seat (231), and the other end is connected with the rocker (232).

4. The battery resting pressurization device of claim 1, wherein Further including a base (4) and a lifting assembly (5) arranged on the base (4), the static box (1) includes a lifting cover (11) and a bottom cover (12), the bottom cover (12) is arranged on the base (4), the lifting cover (11) is connected to the output end of the lifting assembly (5), and the lifting assembly (5) is used for driving the lifting cover (11) to rise to separate from the bottom cover (12) or drive the lifting cover (11) to descend to close the bottom cover (12).

5. The battery resting pressurization device of claim 4, wherein, Further including a locking assembly (6), the locking assembly (6) includes a locking ring (61) and a rotary driving member (62), the locking ring (61) is annularly arranged at the connection between the bottom cover (12) and the lifting cover (11), the rotary driving member (62) is arranged on the base (4), the output end of the rotary driving member (62) is connected to the locking ring (61) and is used for driving the locking ring (61) to rotate, so as to realize the locking or unlocking of the bottom cover (12) and the lifting cover (11).

6. The battery resting pressurization device of claim 5, wherein, An inner wall of the lock ring (61) is provided with a first protrusion (611), an outer wall of the bottom cover (12) is provided with a second protrusion (121), and an outer wall of the lifting cover (11) is provided with a third protrusion (111) corresponding to the position of the second protrusion (121). The first protrusion (611) can coincide or be misaligned with the second protrusion (121) and the third protrusion (111) to achieve locking or unlocking of the bottom cover (12) and the lifting cover (11).

7. The battery resting pressurization device of claim 5, wherein, A limiting piece (63) is arranged on the periphery of the lock ring (61). First and second detection pieces (64) and (65) are respectively arranged on the base (4) at intervals along the circumference of the lock ring (61). The first and second detection pieces (64) and (65) are in communication connection with the rotary driving piece (62). The limiting piece (63) is in inductive cooperation with the first and second detection pieces (64) and (65) respectively.

8. The battery resting pressurization device of claim 5, wherein, A positioning block (66) is arranged on the periphery of the lock ring (61). The positioning block (66) is provided with a positioning hole (661). A second support seat (42) is vertically arranged on the base (4). A positioning cylinder (67) is fixed on the second support seat (42). When the bottom cover (12) is locked with the lifting cover (11), an output shaft of the positioning cylinder (67) is inserted into the positioning hole (661).

9. The battery resting pressurization device of claim 5, wherein, At least two third support seats (43) are uniformly and interval arranged on the base (4) along the circumference of the lock ring (61). The top end of the third support seat (43) is provided with a slot (431). The side edge of the lock ring (61) is located in the slot (431). A third roller (432) and a fourth roller (433) are arranged on the third support seat (43). The third roller (432) is rotatably arranged on the top of the third support seat (43) and is in rolling cooperation with the side surface of the lock ring (61). The fourth roller (433) is rotatably arranged in the slot (431) and is in rolling cooperation with the bottom surface of the lock ring (61).

10. The battery resting pressurization device of any one of claims 1-9, wherein, The pressurizing assembly (3) comprises: A high-pressure nitrogen tank (31) is in communication with the static tank (1) through a nitrogen delivery pipe (311) and is used for delivering nitrogen into the static tank (1); A nitrogen recovery tank (32) is in communication with the static tank (1) through a nitrogen recovery pipe (321) and is used for recovering part of the nitrogen in the static tank (1); A vacuumizing tank (33) is in communication with the static tank (1) through a vacuumizing pipe (331) and is used for vacuumizing the static tank (1); A pressure relief pipe (34) is in communication with the static tank (1) at one end and is in communication with the outside at the other end and is used for discharging another part of the nitrogen to the outside.

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