CN113044381B - Substandard product electricity core storage device - Google Patents
Substandard product electricity core storage device Download PDFInfo
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- CN113044381B CN113044381B CN202110296951.8A CN202110296951A CN113044381B CN 113044381 B CN113044381 B CN 113044381B CN 202110296951 A CN202110296951 A CN 202110296951A CN 113044381 B CN113044381 B CN 113044381B
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- box
- storage box
- battery cell
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/38—Devices for discharging contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
- B65D25/10—Devices to locate articles in containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a defective battery cell storage device which comprises a storage box, wherein an inner cavity for storing a columnar battery cell is formed in the periphery of the storage box, a groove for storing a sheet battery cell is formed in the middle of the storage box, a feed inlet and a discharge outlet which are communicated with the inner cavity are formed in the top and the bottom of the periphery of the storage box respectively, an adjusting box is fixedly connected to the bottom of the storage box, and first transmission screws with different thread turning directions are rotatably arranged on two sides of the bottom of the adjusting box. According to the invention, the defective columnar cells enter the inner cavity through the feed inlet, the first driving device drives the first driving screw to rotate forwards, the inverted T-shaped rod is driven to drive the placing plate to move upwards in the vertical direction according to the screw thread transmission principle, and the sheet-shaped cells are placed on the placing plate.
Description
Technical Field
The invention relates to the technical field of storage of defective battery cells, in particular to a storage device for defective battery cells.
Background
Along with the technical development of new energy vehicles and electronic products, the demand of power batteries is continuously increased, the battery core is used as an indispensable component unit of the power batteries, in the production process of the battery core, when a defective battery core is generated in the previous process, the defective battery core needs to be removed from a transportation line, and the defective battery core is conveyed on the line again after being repaired.
However, firstly, most of the existing defective product removal is to move the product from the production line to a defective product frame or an empty space beside the production line, which is messy in placement and easily causes short circuit of the battery cells.
Disclosure of Invention
In order to solve the problems mentioned in the background art, a defective battery cell storage device is provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
a defective cell storage device comprises a storage box, wherein an inner cavity for storing cylindrical cells is formed in the periphery of the storage box, a groove for storing sheet cells is formed in the middle of the storage box, a feed inlet and a discharge outlet which are communicated with the inner cavity are formed in the top and the bottom of the periphery of the storage box respectively, an adjusting box is fixedly connected to the bottom of the storage box, first transmission screws with different thread turning directions are rotatably mounted on two sides of the bottom of the adjusting box, a first driving device for driving the first transmission screws to rotate is arranged in the adjusting box, the free ends of the first transmission screws penetrate through the storage box and extend into the groove, reverse T-shaped rods are rotatably connected to the outer sides of the first transmission screws through threads, a plurality of placing plates for placing the sheet cells are fixedly connected to the vertical ends of the reverse T-shaped rods, and a material baffle plate located on the outer side of the discharge outlet is sleeved on the outer side of the storage box, and a second driving device for driving the striker plate to move in the vertical direction is arranged on the containing box.
As a further description of the above technical solution:
the storage box is top fixedly connected with all around and is located the last flitch of feed inlet below, storage box bottom fixedly connected with all around is located the lower flitch of discharge gate below.
As a further description of the above technical solution:
the first driving device comprises cylindrical gears rotatably installed at the bottoms of the first transmission screw rods, a second transmission screw rod is rotatably installed inside the adjusting box, a third driving motor in transmission connection with the second transmission screw rod is fixedly installed inside the adjusting box, racks which are in meshing connection with the cylindrical gears on the two sides are connected to the outer side of the second transmission screw rod in a screwing mode through threads, and a group of limiting rods which penetrate through the racks are fixedly connected to the adjusting box.
As a further description of the above technical solution:
a plurality of the placing plates are distributed on the vertical end of the inverted T-shaped rod at equal intervals.
As a further description of the above technical solution:
a plurality of transverse plates and vertical plates are fixedly connected to the placing plate, and a plurality of accommodating grooves are formed between the transverse plates and the vertical plates at intervals.
As a further description of the above technical solution:
the second driving device comprises first driving motors fixedly mounted on two sides of the containing box, an output shaft of each first driving motor is connected with a first worm in a transmission mode, incomplete gears meshed with the first worms are mounted on two sides of the containing box in a rotating mode, bottom fixedly connected with connecting rods of the incomplete gears are connected with the two sides of the striker plate in a rotating mode, and sliding blocks of the bottom fixedly connected with the connecting rods are connected with the sliding grooves in a sliding mode.
As a further description of the above technical solution:
the base is installed in the bottom rotation of regulating box, the regulating box outside fixedly connected with ring gear, fixed mounting has second driving motor on the base, second driving motor's output shaft transmission is connected with the second worm that is connected with the ring gear meshing.
As a further description of the above technical solution:
the base is rotatably connected with the adjusting box through a rotating shaft.
As a further description of the above technical solution:
a plurality of universal wheels with self-locking structures are installed at the bottom of the base.
As a further description of the above technical solution:
the inner wall of the inner cavity is bonded with a rubber pad.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, the defective columnar cells enter the inner cavity through the feed inlet, the first driving device drives the first driving screw to rotate forwards, the inverted T-shaped rod is driven to drive the placing plate to move upwards in the vertical direction according to the screw thread transmission principle, and the sheet-shaped cells are placed on the placing plate.
2. According to the invention, the first worm is driven to rotate by the first driving motor, the incomplete gear is driven to drive the connecting rod and the sliding block to rotate according to the meshing transmission principle of the latch, the sliding block is connected with the sliding groove in a sliding manner, so that the material baffle is driven to move, when the sliding block rotates anticlockwise, the material baffle moves upwards in the vertical direction to open the discharge hole, and when the sliding block rotates clockwise, the material baffle moves downwards in the vertical direction to close the discharge hole.
3. According to the invention, the rubber pads are bonded on the inner wall of the inner cavity, the distance between the rubber pads at two sides of the inner cavity is slightly larger than the diameter of the columnar battery cell, when the columnar battery cell falls in the inner cavity, the falling speed of the columnar battery cell is buffered due to the friction effect between the surface of the columnar battery cell and the rubber pads, the collision force between the columnar battery cells is reduced, and the columnar battery cell is protected.
Drawings
Fig. 1 is a schematic diagram illustrating an internal structure of a defective cell storage device according to an embodiment of the present invention;
fig. 2 is a schematic top view of a defective cell storage device according to an embodiment of the present invention;
fig. 3 is a schematic top view illustrating a regulating box of a defective cell storage device according to an embodiment of the present invention;
fig. 4 is a schematic side view of a storage box of a defective cell storage device according to an embodiment of the present invention;
fig. 5 is a schematic perspective view illustrating a first driving device of a defective cell storage device according to an embodiment of the invention;
fig. 6 is a schematic perspective view illustrating a second driving device of a defective battery cell accommodating device according to an embodiment of the invention.
Illustration of the drawings:
1. a base; 2. a universal wheel; 3. a rotating shaft; 4. an adjusting box; 5. a ring gear; 6. a blanking plate; 7. a striker plate; 8. a connecting rod; 9. an incomplete gear; 10. a first worm; 11. feeding plates; 12. a feed inlet; 13. a rubber pad; 14. placing the plate; 15. an inverted T-shaped bar; 16. a first drive screw; 17. a first drive motor; 18. a storage box; 19. a discharge port; 20. a cylindrical gear; 21. a rack; 22. a second drive screw; 23. a second drive motor; 24. a second worm; 25. an inner cavity; 26. a groove; 27. a transverse plate; 28. a vertical plate; 29. a receiving groove; 30. a third drive motor; 31. a slider; 32. a chute; 33. a limiting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-6, the present invention provides a technical solution: a defective cell storage device comprises a storage box 18, wherein an inner cavity 25 for storing cylindrical cells is formed in the periphery of the storage box 18, a groove 26 for storing sheet cells is formed in the middle of the storage box 18, a feed inlet 12 and a discharge outlet 19 which are communicated with the inner cavity 25 are formed in the top and the bottom of the periphery of the storage box 18 respectively, an adjusting box 4 is fixedly connected to the bottom of the storage box 18, first transmission screws 16 with different thread turning directions are rotatably mounted on two sides of the bottom of the adjusting box 4, a first driving device for driving the first transmission screws 16 to rotate is arranged in the adjusting box 4, the free ends of the first transmission screws 16 extend into the groove 26 after penetrating through the storage box 18, reverse T-shaped rods 15 are connected to the outer sides of the first transmission screws 16 on two sides in a screwing mode through threads, a plurality of placing plates 14 for containing the sheet cells are fixedly connected to the vertical ends of the reverse T-shaped rods 15, and the placing plates 14 are distributed on the vertical ends of the reverse T-shaped rods 15 at equal intervals, the striker plate 7 positioned on the outer side of the discharge hole 19 is sleeved on the outer side of the containing box 18, and a second driving device for driving the striker plate 7 to move in the vertical direction is installed on the containing box 18;
the defective columnar cells enter the inner cavity 25 through the feed inlet 12, the first driving device drives the first transmission screw 16 to rotate forward, the inverted T-shaped rod 15 is driven to drive the placing plate 14 to move upwards in the vertical direction according to the screw thread transmission principle, and the sheet-shaped cells are placed on the placing plate 14, so that the defective columnar cells and the sheet-shaped cells are stored in one place, the space is saved, the defective columnar cells and the sheet-shaped cells are placed in order, and the cell short circuit problem caused by disorder placement of the defective cells is avoided;
the second driving device drives the striker plate 7 to move in the vertical direction so as to open and close the discharge hole 19.
Referring to fig. 1, 2 and 4, the top of the periphery of the storage box 18 is fixedly connected with a feeding plate 11 located below the feeding port 12, the bottom of the periphery of the storage box 18 is fixedly connected with a discharging plate 6 located below the discharging port 19, the feeding plate 11 is arranged to be inclined upward so as to facilitate the rolling of the inferior columnar cells into the inner cavity 25, and the discharging plate 6 is arranged to be inclined downward so as to facilitate the rolling of the inferior columnar cells out of the inner cavity 25.
Referring to fig. 1, 3 and 5, the first driving device includes a cylindrical gear 20 rotatably mounted at the bottom of the first transmission screw 16, a second transmission screw 22 is rotatably mounted inside the adjusting box 4, a third driving motor 30 drivingly connected to the second transmission screw 22 is fixedly mounted inside the adjusting box 4, a rack 21 meshed with the cylindrical gears 20 on both sides is rotatably connected to the outer side of the second transmission screw 22 through threads, a set of limiting rods 33 penetrating through the rack 21 is fixedly connected to the adjusting box 4, the second transmission screw 22 is driven to rotate by the third driving motor 30, the rack 21 is driven to move in the horizontal direction according to the thread transmission principle, and the cylindrical gears 20 on both sides are driven to drive the first transmission screw 16 to rotate according to the meshing transmission principle of the latch.
Referring to fig. 2, a plurality of horizontal plates 27 and vertical plates 28 are fixedly connected to the placing plate 14, a plurality of accommodating grooves 29 are formed between the horizontal plates 27 and the vertical plates 28 at intervals, and defective sheet-shaped battery cells are sequentially placed in the accommodating grooves 29, so that the defective sheet-shaped battery cells are orderly placed.
Referring to fig. 1, 4 and 6, the second driving device includes a first driving motor 17 fixedly installed at both sides of the storage box 18, an output shaft of the first driving motor 17 is connected with a first worm 10 in a transmission manner, both sides of the storage box 18 are rotatably installed with an incomplete gear 9 engaged with the first worm 10, a connecting rod 8 is fixedly connected to the bottom of the incomplete gear 9, both sides of the striker plate 7 are provided with sliding slots 32, the bottom of the connecting rod 8 is fixedly connected with a sliding block 31 slidably connected with the sliding slots 32, the first worm 10 is driven to rotate by the first driving motor 17, the incomplete gear 9 is driven to drive the connecting rod 8 and the sliding block 31 to rotate according to the engagement transmission principle of the latch, the sliding block 31 and the sliding slots 32 are slidably connected to drive the striker plate 7 to move, when the sliding block 31 rotates counterclockwise, the striker plate 7 moves upward in the vertical direction, the discharge hole 19 is opened, when the sliding block 31 rotates clockwise, the striker plate 7 moves downwards in the vertical direction, closing the discharge opening 19.
4 bottoms of regulating box are rotated and are installed base 1, rotate through rotation axis 3 between base 1 and the regulating box 4 and be connected, 4 outside fixedly connected with ring gears 5 of regulating box, fixed mounting has second driving motor 23 on the base 1, the output shaft transmission of second driving motor 23 is connected with the second worm 24 of being connected with the ring gears 5 meshing, rotate through second driving motor 23 drive second worm 24, according to the meshing transmission principle of latch, drive ring gears 5 drive regulating box 4 and rotate, so that adjust feed inlet 12 or the discharge gate 19 of different sides and rotate to workman's fixed station on, save the step that the workman walked around containing box 18 and come to put electric core.
Referring to fig. 1, a plurality of universal wheels 2 with self-locking structures are mounted at the bottom of a base 1, so as to facilitate the movement and positioning of a storage box 18.
Referring to fig. 1, rubber pads 13 are bonded to the inner wall of the inner cavity 25, the distance between the rubber pads 13 on the two sides of the inner cavity 25 is slightly larger than the diameter of the columnar cell, and when the columnar cell falls in the inner cavity 25, due to the friction between the surface of the columnar cell and the rubber pads 13, the falling speed of the columnar cell is buffered, the collision force between the columnar cells is reduced, and the columnar cell is protected.
The working principle is as follows: when the battery cell storage box is used, firstly, the third driving motor 30 drives the second driving screw 22 to rotate forwards, the driving rack 21 moves outwards perpendicular to a paper surface in the horizontal direction according to a thread transmission principle, the left cylindrical gear 20 drives the first driving screw 16 to rotate clockwise according to a meshing transmission principle of the latch, the right cylindrical gear 20 drives the first driving screw 16 to rotate anticlockwise, the inverted T-shaped rod 15 drives the placing plate 14 to move upwards to the top of the storage box 18 in the vertical direction according to the thread transmission principle and different rotation directions of the first driving screws 16 on two sides, the sheet-shaped battery cells are sequentially placed into the storage groove 29, then the third driving motor 30 is controlled to rotate backwards, the inverted T-shaped rod 15 and the placing plate 14 are stored into the groove 26, the ordered placement of the sheet-shaped battery cells is completed, and if the sheet-shaped battery cells are to be taken out, the operation is repeated;
secondly, a columnar battery cell is placed on the feeding plate 11 and naturally rolls into the inner cavity 25 through the feeding hole 12, wherein when the columnar battery cell falls in the inner cavity 25, due to the friction between the surface of the columnar battery cell and the rubber pad 13, the falling speed of the columnar battery cell is buffered, the collision force between the columnar battery cells is reduced, the columnar battery cell is protected, when the columnar battery cell is fully collected in the inner cavity 25 on one side, the second worm 24 is driven to rotate through the second driving motor 23, according to the meshing transmission principle of the latch, the gear ring 5 is driven to drive the adjusting box 4 to rotate, so that the feeding hole 12 or the discharging hole 19 on different sides are adjusted to rotate to a fixed station of a worker, and the step that the worker walks around the collecting box 18 to take and place the battery cell is omitted;
if the columnar battery cell needs to be taken out, the first worm 10 is driven to rotate through the first driving motor 17, the incomplete gear 9 is driven to drive the connecting rod 8 and the sliding block 31 to rotate anticlockwise according to the meshing transmission principle of the clamping teeth, the sliding block 31 is connected with the sliding groove 32 in a sliding mode, so that the material baffle plate 7 is driven to move upwards in the vertical direction, the material outlet 19 is opened, and the columnar battery cell naturally rolls out to the blanking plate 6 through the material outlet 19 under the action of gravity;
on the one hand for substandard product column electric core and slice electric core are accomodate in one, save space, and on the other hand makes substandard product column electric core and slice electric core place in order, avoids substandard product electric core to place the electric core short circuit problem that mixed and disorderly brought.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A defective cell storage device comprises a storage box (18), and is characterized in that an inner cavity (25) for storing a columnar cell is formed in the periphery of the storage box (18), a groove (26) for storing a sheet-shaped cell is formed in the middle of the storage box (18), a feed inlet (12) and a discharge outlet (19) which are communicated with the inner cavity (25) are formed in the top and the bottom of the storage box (18) respectively, an adjusting box (4) is fixedly connected to the bottom of the storage box (18), first transmission screws (16) with different thread turning directions are rotatably mounted on two sides of the bottom of the adjusting box (4), a first driving device for driving the first transmission screws (16) to rotate is arranged in the adjusting box (4), the free end of each first transmission screw (16) penetrates through the storage box (18) and then extends into the groove (26), inverted T-shaped rods (15) are rotatably connected to the outer sides of the first transmission screws (16) through threads, the vertical end of the inverted T-shaped rod (15) is fixedly connected with a plurality of placing plates (14) used for placing the sheet-shaped battery cells, a material baffle (7) located on the outer side of the discharge hole (19) is sleeved on the outer side of the containing box (18), and a second driving device for driving the material baffle (7) to move in the vertical direction is installed on the containing box (18).
2. A defective battery cell storage device according to claim 1, wherein an upper material plate (11) located below the feed port (12) is fixedly connected to the top of the storage box (18), and a lower material plate (6) located below the discharge port (19) is fixedly connected to the bottom of the storage box (18).
3. The defective battery cell accommodating device according to claim 2, wherein the first driving device comprises a cylindrical gear (20) rotatably mounted at the bottom of the first transmission screw (16), a second transmission screw (22) is rotatably mounted inside the adjusting box (4), a third driving motor (30) in transmission connection with the second transmission screw (22) is fixedly mounted inside the adjusting box (4), a rack (21) in meshing connection with the cylindrical gears (20) on two sides is connected to the outer side of the second transmission screw (22) in a screwing manner through threads, and a group of limiting rods (33) penetrating through the rack (21) is fixedly connected to the adjusting box (4).
4. Defective cell housing device according to claim 3, characterised in that a plurality of the holding plates (14) are distributed at equal intervals on the vertical end of the inverted T-shaped bar (15).
5. A defective battery cell storage device according to claim 4, wherein a plurality of transverse plates (27) and vertical plates (28) are fixedly connected to the placing plate (14), and a plurality of storage grooves (29) are formed between the transverse plates (27) and the vertical plates (28) at intervals.
6. A defective battery cell storage device according to claim 5, wherein the second driving device comprises first driving motors (17) fixedly mounted on two sides of a storage box (18), an output shaft of each first driving motor (17) is connected with a first worm (10) in a transmission manner, incomplete gears (9) meshed with the first worms (10) are rotatably mounted on two sides of the storage box (18), connecting rods (8) are fixedly connected to bottoms of the incomplete gears (9), sliding grooves (32) are formed in two sides of the striker plate (7), and sliding blocks (31) slidably connected with the sliding grooves (32) are fixedly connected to bottoms of the connecting rods (8).
7. A defective battery cell storage device according to claim 6, wherein a base (1) is rotatably mounted at the bottom of the adjusting box (4), a gear ring (5) is fixedly connected to the outer side of the adjusting box (4), a second driving motor (23) is fixedly mounted on the base (1), and an output shaft of the second driving motor (23) is in transmission connection with a second worm (24) in meshing connection with the gear ring (5).
8. A defective battery cell storage device according to claim 7, wherein the base (1) and the adjusting box (4) are rotatably connected through a rotating shaft (3).
9. A defective battery cell storage device according to claim 8, wherein a plurality of universal wheels (2) with self-locking structures are mounted at the bottom of the base (1).
10. Defective battery cell storage device according to claim 9, characterized in that a rubber pad (13) is bonded to the inner wall of the inner cavity (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110296951.8A CN113044381B (en) | 2021-03-19 | 2021-03-19 | Substandard product electricity core storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110296951.8A CN113044381B (en) | 2021-03-19 | 2021-03-19 | Substandard product electricity core storage device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113044381A CN113044381A (en) | 2021-06-29 |
| CN113044381B true CN113044381B (en) | 2022-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110296951.8A Active CN113044381B (en) | 2021-03-19 | 2021-03-19 | Substandard product electricity core storage device |
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| CN206447421U (en) * | 2016-12-19 | 2017-08-29 | 贵州大学 | A kind of box cable reel installation |
| CN108146799A (en) * | 2018-03-10 | 2018-06-12 | 布占贵 | A kind of new energy battery transports fixing device |
| CN110027806A (en) * | 2019-04-22 | 2019-07-19 | 郑州工程技术学院 | A kind of damp-proof moisture removing apparatus of human resource management data containing box |
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| Publication number | Publication date |
|---|---|
| CN113044381A (en) | 2021-06-29 |
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