A tray-mounted sealing device for the static storage and environmental control of large cylindrical batteries

Abstract

This utility model discloses a tray-mounted sealing device for the static storage and environmental control of large cylindrical batteries. It includes a cap tray assembly and a cap tray storage assembly. The cap tray assembly comprises a battery tray and cap trays. The battery tray is used for circulation on the formation line and between various devices. The cap tray has multiple countersunk holes for installing caps, and is stored in a cap-mounting machine. When a battery tray containing open batteries travels through the logistics line to the cap-mounting machine, the multiple caps on the cap tray are pressed against the corresponding battery openings to achieve a seal. The cap tray and battery tray are fastened together by a fastening device. The cap tray storage assembly stores cleaned cap trays. This utility model's cap tray assembly enables sealed operation and high-temperature sealing of the batteries, while the cap tray storage assembly stores reusable cap trays. This utility model protects the battery electrolyte, thereby ensuring battery production quality and significantly improving the battery yield.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery charging and discharging technology, specifically relating to a tray-mounted sealing device for the static placement and environmental control of large cylindrical batteries. Background Technology

[0002] With the rapid development of the lithium battery industry, charging and discharging have become a crucial step in the production process. However, insufficient air cleanliness is a significant factor affecting battery quality during the charging and discharging process. It can cause impurities in the electrolyte of exposed batteries, leading to a series of problems, with the longer the exposure time, the greater the impact.

[0003] To ensure air cleanliness, a common protective measure is to add protective covers to the production line for secondary air protection while maintaining the cleanliness of the factory. However, even with high cleanliness, impurities can still be generated over a long period of time, especially in open batteries flowing out of the pre-charging equipment during the formation stage. With an immersion time of ten to twenty hours, the electrolyte in the unsealed battery opening can be severely affected by impurities that have been deposited in the air for a long time.

[0004] This demonstrates the significant importance of sealing the battery port for improving battery quality. Therefore, it is necessary to design a battery port sealing device to enhance the battery's pass rate. Summary of the Invention

[0005] To address the aforementioned technical problems in existing technologies, this utility model provides a tray-mounted sealing device for the static placement and environmental control of large cylindrical batteries. This utility model provides a cap tray assembly and a cap tray base assembly, both with simple structures. The cap tray assembly enables sealed operation and high-temperature sealing of the battery, while the cap tray base assembly stores reusable cap trays. This utility model protects the battery electrolyte, thereby ensuring battery production quality and significantly improving the battery yield.

[0006] The technical solution adopted in this utility model is:

[0007] A tray-type sealing device for the static placement and environmental control of large cylindrical batteries, characterized in that it includes a cap tray assembly and a cap tray storage assembly, wherein:

[0008] The cap tray assembly includes a battery tray and a cap tray. The battery tray is used to move between the formation section line and various equipment. The cap tray is provided with multiple countersunk holes for installing caps. The cap tray is stored in the cap-fastening machine. When the battery tray containing open batteries moves to the cap-fastening machine through the logistics line, the multiple caps on the cap tray are pressed against the corresponding battery openings one by one to achieve a seal.

[0009] The cap tray and the battery tray are fastened together by a fastening device;

[0010] The cap tray storage assembly is used to store cleaned cap trays.

[0011] Furthermore, the fastening device includes a male positioning pin and a female positioning pin; the cap plate includes a base and multiple cap mounting holes arranged on the base, the multiple cap mounting holes being arranged in equally spaced rows, and the cap being installed in the cap mounting holes; T-shaped fixing blocks are provided around the perimeter of the base, and pin holes are provided on the T-shaped fixing blocks, with the male positioning pin disposed in the pin holes; the female positioning pin is provided around the perimeter of the battery tray at the position corresponding to the male positioning pin; the inner wall of the female positioning pin is symmetrically provided with limiting balls, and the lower part of the male positioning pin has a curved surface adapted to the outer wall of the limiting balls.

[0012] Furthermore, the cap includes a cap body and a rotating jaw; the cap body includes a connecting stud, a sealing cap, sealing auxiliary blades, and a sealing boss; the sealing cap has a connecting stud at the center of its top end, which is threadedly connected to the cap disc; the sealing cap has a sealing boss at its bottom end, and several sealing auxiliary blades are spaced circumferentially on the bottom end of the sealing cap outside the sealing boss; the sealing boss is sealed to the battery port to separate the electrolyte from the air.

[0013] The rotating gripper includes a rotating base and a rotating handle. The rotating base includes a rotating base and a rotating column disposed on the rotating base. The rotating base has grooves for use with sealing auxiliary blades, and the number of sealing auxiliary blades corresponds one-to-one with the number of grooves. A through hole is opened radially on the rotating column, and the rotating handle is inserted into the through hole. Rotating the rotating handle is used to install the cap into the cap plate to achieve an interference fit between the cap and the cap plate.

[0014] Furthermore, the upper part of the outer side of the sealing boss has a sealing surface, and the lower part has a guide surface. The guide surface is an inclined surface, and the battery port of the cylindrical battery has a stepped surface that matches the inclined surface. The sealing boss and the battery port are interference fit.

[0015] Furthermore, both the sealing cover and the sealing auxiliary blade are made of steel plate, and the outer layer of the steel plate and the sealing boss of the sealing cover and the sealing auxiliary blade are integrally injection molded from EPDM rubber.

[0016] Furthermore, the chassis has a first countersunk hole on its four edges for mounting a T-shaped fixing block, and the battery tray has a second countersunk hole on its four edges for mounting a positioning pin female plug.

[0017] Furthermore, the battery tray includes a tray bottom plate and four tray side plates, which together form a battery tray with an open upper surface; a battery guide is installed inside the battery tray.

[0018] Furthermore, the cap tray storage assembly includes a base support member, which has a frame structure adapted to the cap tray, and the cap tray is placed on the frame structure; the T-shaped fixing block is fixedly installed in the first countersunk hole by a fixing block positioning pin.

[0019] Furthermore, the pallet side panel is fixedly installed on the pallet bottom plate by side panel positioning pins.

[0020] Furthermore, by adjusting the thickness of the T-shaped fixing block, the battery of different heights can be replaced.

[0021] The workflow of this invention is as follows: When a tray containing open-ended batteries flows out of the pre-charger and onto the battery capping machine via the logistics line, the grippers of the capping machine place a capping disc onto the battery tray. At this time, a number of caps on the lower surface of the capping disc are pressed one-to-one with the battery opening. After pressing, the battery tray leaves and flows to the high-temperature immersion chamber for sealed high-temperature immersion of the batteries. Since the batteries need to be opened again for the formation process after immersion, the capping tray assembly must first enter the cap removal machine before formation. The capping disc is picked up by the grippers, allowing the battery opening to open again and flow out of the equipment before entering the formation process. The capping disc picked up by the cap removal machine retains electrolyte from the original tray batteries after use. The grippers send it to the cleaning area for cleaning, and the cleaned capping disc is stored in the capping disc storage assembly. At this point, all the relevant processes have been completed.

[0022] Compared with the prior art, the beneficial effects of this utility model are reflected in:

[0023] 1. This utility model, by setting up a cap tray assembly, uses the sealing protrusion of the cap to form a sealed connection with the battery port, thereby achieving effective isolation between the electrolyte and air, which greatly improves the quality of the battery.

[0024] 2. By setting up a cap tray storage component, the used cap tray can be cleaned and recycled for reuse.

[0025] 3. The overall structure of this utility model is simple. The cap tray assembly realizes the sealed operation and high-temperature sealing of the battery, while the cap tray bottom support assembly is used to store the recyclable cap tray. This utility model realizes the function of protecting the battery electrolyte, thereby ensuring the battery production quality and greatly improving the battery qualification rate.

[0026] 4. This utility model can adapt to different battery models by setting different thicknesses of T-shaped protrusions. The operation is simple and convenient. You only need to remove them all and replace them with T-shaped fixing blocks of the corresponding thickness to achieve the change. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the cap tray assembly of this utility model.

[0028] Figure 2a This is a schematic diagram of the cap plate structure of this utility model.

[0029] Figure 2b yes Figure 2a Enlarged view of section I in the middle.

[0030] Figure 3 This is a schematic diagram of the battery tray structure of this utility model.

[0031] Figure 4 This is a schematic diagram of the structure of the cap tray storage component of this utility model.

[0032] Figure 5a This is a schematic diagram of the three-dimensional structure of the cap of this utility model. Figure 1 .

[0033] Figure 5b This is a schematic diagram of the three-dimensional structure of the cap of this utility model.

[0034] Figure 6 This is a cross-sectional view of the cap of this utility model in the state where the cap plate and the battery port are pressed together.

[0035] Figure 7a This is a schematic diagram of the rotating gripper structure of this utility model.

[0036] Figure 7b This is a schematic diagram of the installation of the rotating gripper of this utility model.

[0037] Figure 8 This is a partial enlarged view (I) of Figure 2 of this utility model.

[0038] Figure 9a This is a schematic diagram of the assembly of the cap tray component of this utility model.

[0039] Figure 9b yes Figure 9a Schematic diagram of section AA.

[0040] Figure 9c yes Figure 9b Enlarged view of section II in the middle.

[0041] Figure 9d yes Figure 9a Schematic diagram of the BB-section.

[0042] Figure 10a This is a schematic diagram of the assembly of the battery tray parts of this utility model.

[0043] Figure 10b yes Figure 10a Schematic diagram of the CC section.

[0044] Figure 10c yes Figure 10b Enlarged view of section III.

[0045] Figure 10d yes Figure 10b Enlarged view of section IV in the middle.

[0046] Figure 11a This is a schematic diagram illustrating the positioning pin engagement after the cap tray and battery tray of this utility model are pressed together. Figure 1 .

[0047] Figure 11b yes Figure 11a Schematic diagram of the DD section.

[0048] Figure 11c yes Figure 11b Enlarged view of section V in the middle.

[0049] Figure 12a This is a schematic diagram of the positioning pin fitting after the cap plate and battery tray are pressed together in this utility model.

[0050] Figure 12b yes Figure 12a Schematic diagram of the EE section.

[0051] Figure 13 This is a diagram illustrating the changeover process when producing batteries of different heights.

[0052] Figure 14a This is a schematic diagram of the T-shaped fixing block structure when producing 46120 open-top batteries.

[0053] Figure 14b yes Figure 14a Schematic diagram of the FF section.

[0054] Figure 15a This is a schematic diagram of the T-shaped fixing block structure used in the production of 4695 open-top batteries.

[0055] Figure 15b yes Figure 15a Schematic diagram of the GG cross section. Detailed Implementation

[0056] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0057] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0058] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0059] refer to Figure 1 As shown in the figure, this utility model discloses a tray-type sealing device for the static placement and environmental control of large cylindrical batteries, comprising a cap tray assembly 1 and a cap tray storage assembly 11, wherein:

[0060] The cap tray assembly 1 includes a battery tray 2 and a cap tray 6. The battery tray 2 is used to move between the formation section line and various equipment. The cap tray 6 is provided with multiple countersunk holes for installing caps 5. The cap tray 6 is stored in the cap fastening machine. When the battery tray 2 containing open batteries 15 moves to the cap fastening machine through the logistics line, the multiple caps 5 on the cap tray 6 are pressed against the corresponding battery openings one by one to achieve sealing.

[0061] The cap tray 6 and the battery tray 2 are fastened together by a fastening device;

[0062] The cap tray storage component 11 is used to store the cleaned cap trays.

[0063] In one embodiment, the fastening device includes a male positioning pin plug 4 and a female positioning pin plug 10; the cap plate 6 includes a base and a plurality of cap mounting holes disposed on the base, the plurality of cap mounting holes being arranged in rows at equal intervals, and the cap 5 being installed in the cap mounting holes; a T-shaped fixing block 3 is provided on the four edges of the base, and a pin hole is provided on the T-shaped fixing block 3, the male positioning pin plug 4 being disposed in the pin hole; the female positioning pin plug 10 is provided on the four edges of the battery tray 2 corresponding to the position of the male positioning pin plug 4; the inner wall of the female positioning pin plug 10 is symmetrically provided with limiting balls 17, and the lower part of the male positioning pin plug 4 has a curved surface adapted to the outer wall of the limiting balls 17.

[0064] In one embodiment, the cap 5 includes a cap body and a rotating gripper; the cap body includes a connecting stud 52, a sealing cap 51, sealing auxiliary blades 53, and a sealing boss 54. The sealing cap has a connecting stud 52 at its top center, and the connecting stud 52 is threadedly connected to the cap disc 6; the sealing cap 51 has a sealing boss 54 at its bottom end, and several sealing auxiliary blades 53 are spaced apart along the circumferential direction on the bottom end of the sealing cap outside the sealing boss 54; the sealing boss 54 is sealed to the battery port to separate the electrolyte from the air.

[0065] The rotating gripper includes a rotating base and a rotating handle. The rotating base includes a rotating base and a rotating column 16 disposed on the rotating base. The rotating base has a groove for use with sealing auxiliary blades, and the number of sealing auxiliary blades corresponds one-to-one with the number of grooves. A through hole is opened radially on the rotating column, and the rotating handle is inserted into the through hole. Rotating the rotating handle is used to install the cap into the cap plate to achieve an interference fit between the cap and the cap plate.

[0066] In one embodiment, the upper part of the outer side of the sealing boss 54 has a boss sealing surface 541, and the lower part has a boss guide surface 542. The guide surface is an inclined surface, and the battery port of the cylindrical battery has a stepped surface that matches the inclined surface. The sealing boss and the battery port are interference-fitted.

[0067] In one embodiment, the cap plate 6 has a countersunk hole for installing a sealing cap. The upper part of the end face of the outer side of the sealing cap 51 that extends into the countersunk hole is an inclined surface 511. The inner diameter of the countersunk hole is greater than or equal to the outer diameter of the inclined surfaces on both sides of the sealing cap, so as to achieve an interference fit between the sealing cap and the cap plate.

[0068] In one embodiment, the outer diameter of the sealing boss is larger than the inner diameter of the battery port, thereby achieving an interference fit between the sealing boss 54 and the battery port.

[0069] In one embodiment, both the sealing cap and the sealing auxiliary blade are made of steel plate, and the outer layer of the steel plate and the sealing boss of the sealing cap and the sealing auxiliary blade are integrally injection molded from EPDM rubber.

[0070] In one embodiment, the chassis has a first countersunk hole on its four edges for mounting a T-shaped fixing block, and the battery tray has a second countersunk hole on its four edges for mounting a positioning pin female plug.

[0071] In one embodiment, the battery tray 2 includes a tray base plate 8 and four tray side plates 7, which together form a battery tray with an open upper surface; a battery guide 9 is installed inside the battery tray.

[0072] In one embodiment, the cap tray storage assembly includes a base support member having a frame structure adapted to the cap tray, the cap tray being placed on the frame structure; the T-shaped fixing block is fixedly installed in the first countersunk hole by a fixing block positioning pin 13.

[0073] In one embodiment, the pallet side panel 7 is fixedly mounted on the pallet bottom plate by a side panel positioning pin 14.

[0074] In one embodiment, the thickness of the T-shaped fixing block 3 is adjusted to allow for the replacement of batteries of different heights.

[0075] The workflow of this invention is as follows: When a tray containing open-ended batteries flows out of the pre-charger and onto the battery capping machine via the logistics line, the grippers of the capping machine place a capping disc onto the battery tray. At this time, a number of caps on the lower surface of the capping disc are pressed one-to-one with the battery opening. After pressing, the battery tray leaves and flows to the high-temperature immersion chamber for sealed high-temperature immersion of the batteries. Since the batteries need to be opened again for the formation process after immersion, the capping tray assembly must first enter the cap removal machine before formation. The capping disc is picked up by the grippers, allowing the battery opening to open again and flow out of the equipment before entering the formation process. The capping disc picked up by the cap removal machine retains electrolyte from the original tray batteries after use. The grippers send it to the cleaning area for cleaning, and the cleaned capping disc is stored in the capping disc storage assembly. At this point, all the relevant processes have been completed.

[0076] like Figure 1 As shown, when the battery tray assembly enters the cap-closing machine, the mechanism's grippers extend into the four lifting holes of the cap tray and align it with the battery tray to close it. During the closing process, the male and female positioning pins engage to achieve precise positioning of the cap tray assembly relative to the battery tray, ensuring accurate fit between the cap and the battery opening and guaranteeing the battery's internal sealing.

[0077] like Figure 7a and 7b As shown, the cap plate is initially without the cap installed. It is necessary to manually use a rotating jaw tool to hold the cap installation auxiliary blade and lock the cap connecting stud into the internal thread of the cap plate until the jaw touches the cap plate and cannot be screwed in any further. This indicates that the cap is installed in place.

[0078] like Figures 13 to 15b The diagram shows two different battery heights, 46120 and 4695, in their pressed state. The only difference in the replacement process is the thickness of the contact surface between the T-shaped retaining block and the cap plate. The replacement method is simple and convenient; simply remove all components and replace them with the corresponding compatible retaining blocks to achieve the replacement.

[0079] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A whole pallet clip seal device for large cylindrical battery resting and environmental management, characterized in that, Includes cap tray assembly and cap tray storage assembly, wherein: The cap tray assembly includes a battery tray and a cap tray. The battery tray is used to move between the formation section line and various equipment. The cap tray is provided with multiple countersunk holes for installing caps. The cap tray is stored in the cap-fastening machine. When the battery tray containing open batteries moves to the cap-fastening machine through the logistics line, the multiple caps on the cap tray are pressed against the corresponding battery openings one by one to achieve a seal. The cap tray and the battery tray are fastened together by a fastening device; The cap tray storage assembly is used to store cleaned cap trays.

2. A whole tray clamping sealing device for large cylindrical battery static and environmental management according to claim 1, characterized in that, The fastening device includes a male positioning pin and a female positioning pin; the cap plate includes a base and multiple cap mounting holes arranged in equal rows on the base, and the cap is installed in the cap mounting holes; T-shaped fixing blocks are provided around the four edges of the base, and pin holes are provided on the T-shaped fixing blocks, and the male positioning pin is provided in the pin holes; the female positioning pin is provided around the four edges of the battery tray at the positions corresponding to the male positioning pin; the inner wall of the female positioning pin is symmetrically provided with limiting balls, and the lower part of the male positioning pin has a curved surface adapted to the outer wall of the limiting balls.

3. A whole pallet clip seal apparatus for large cylindrical battery resting and environmental management as defined in claim 1, wherein, The cap includes a cap body and a rotating jaw; the cap body includes a connecting stud, a sealing cap, sealing auxiliary blades, and a sealing boss; the sealing cap has a connecting stud at the center of its top, which is threadedly connected to the cap disc; the sealing cap has a sealing boss at its bottom, and several sealing auxiliary blades are spaced circumferentially on the bottom of the sealing cap outside the sealing boss; the sealing boss is sealed to the battery port to separate the electrolyte from the air. The rotating gripper includes a rotating base and a rotating handle. The rotating base includes a rotating base and a rotating column disposed on the rotating base. The rotating base has grooves for use with sealing auxiliary blades, and the number of sealing auxiliary blades corresponds one-to-one with the number of grooves. A through hole is opened radially on the rotating column, and the rotating handle is inserted into the through hole. Rotating the rotating handle is used to install the cap into the cap plate to achieve an interference fit between the cap and the cap plate.

4. A whole pallet clip seal apparatus for large cylindrical battery resting and environmental management as defined in claim 3, wherein, The upper part of the outer side of the sealing boss has a sealing surface, and the lower part has a guide surface. The guide surface is an inclined surface. The battery port of the cylindrical battery has a stepped surface that matches the inclined surface. The sealing boss and the battery port are interference-fitted.

5. A whole tray clamping seal apparatus for large cylindrical battery resting and environmental management as claimed in claim 3, wherein, Both the sealing cover and the sealing auxiliary blade are made of steel plate, and the outer layer of the steel plate and the sealing boss of the sealing cover and the sealing auxiliary blade are integrally injection molded from EPDM rubber.

6. A whole tray clamping seal apparatus for large cylindrical battery resting and environmental management as claimed in claim 2, wherein, The chassis has first countersunk holes on its four edges for mounting T-shaped fixing blocks, and the battery tray has second countersunk holes on its four edges for mounting positioning pin female plugs.

7. A whole pallet clip seal apparatus for large cylindrical battery resting and environmental management as defined in claim 6, wherein, The battery tray includes a tray base plate and four tray side plates, which together form a battery tray with an open upper surface; a battery guide is installed inside the battery tray.

8. A whole pallet clip seal apparatus for large cylindrical battery resting and environmental management as defined in claim 7, wherein, The cap tray storage assembly includes a base support member, which has a frame structure adapted to the cap tray, and the cap tray is placed on the frame structure; the T-shaped fixing block is fixedly installed in the first countersunk hole by a fixing block positioning pin.

9. A whole pallet clip seal apparatus for large cylindrical battery resting and environmental management as defined in claim 7, wherein, The pallet side panel is fixedly installed on the pallet bottom plate by side panel positioning pins.

10. A whole pallet clip seal apparatus for large cylindrical battery resting and environmental management as defined in claim 2, wherein, By adjusting the thickness of the T-shaped fixing block, the battery of different heights can be replaced.

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