CN211926333U - Quick vacuum drying oven of lithium cell - Google Patents
Quick vacuum drying oven of lithium cell Download PDFInfo
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- CN211926333U CN211926333U CN202020586690.4U CN202020586690U CN211926333U CN 211926333 U CN211926333 U CN 211926333U CN 202020586690 U CN202020586690 U CN 202020586690U CN 211926333 U CN211926333 U CN 211926333U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model relates to a quick vacuum drying oven for lithium batteries, which belongs to the field of lithium batteries and comprises a bottom plate and a box body which are mutually covered; the bottom plate is provided with a base plate, the base plate is provided with a first through hole penetrating through the base plate, the center line of the first through hole is positioned on the center line of the length direction of the base plate, the surface of the base plate is also provided with a first groove and a second groove, an opening of the bottom plate corresponding to one side of the first groove and the second groove, which extend out of the base plate, is provided with a mounting hole, the lower end of the mounting hole is provided with a mounting pipe, the lower end of the mounting pipe is provided with an aviation connector, and a third through hole is connected with a first connecting pipe for connecting vacuum; be provided with heating jig on the backing plate, heating jig includes two backup pads, presss from both sides between two backup pads and is equipped with the silica gel hot plate, forms the passageway between the lower extreme of silica gel hot plate and two backup pads and the bottom plate, passageway and first via hole intercommunication, and one side of two backup pads all is provided with a plurality of heat conduction fins. The utility model discloses heating and drying efficiency are high.
Description
Technical Field
The utility model relates to a lithium cell field, in particular to quick vacuum drying oven of lithium cell.
Background
The soft package lithium battery is a third-generation power lithium battery developed on the basis of the original steel shell, aluminum shell and plastic shell batteries, and is widely applied to various fields such as electric bicycles, electric automobiles, solar photovoltaic power generation systems and the like due to the advantages of lightness, thinness, long cycle life, stable discharge platform, excellent power performance, environmental protection, no pollution and the like. Need pass through vacuum drying in the production process of lithium cell and handle, if do not pass through vacuum drying, then because electric core generates heat in the electric core use, can make electric core appear bulging, the fracture condition. Therefore, vacuum drying is particularly important in the production of power soft packages, and vacuum drying needs to use a vacuum drying oven, the vacuum drying oven achieves the effect of vacuum drying through vacuumizing and heating, wherein vacuumizing and heating are performed simultaneously, so as to pump away water vapor generated in the heating process to achieve the purpose of drying, and the efficiency of vacuumizing and the efficiency of heating determine the efficiency of the vacuum drying process, so that a vacuum drying oven capable of effectively improving the vacuumizing efficiency and the heating efficiency is necessary to be researched.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide a rapid vacuum drying oven for lithium batteries, which includes a bottom plate and a box body that are mutually covered, wherein the bottom plate is plate-shaped, and the box body is an integrally formed structure with an opening at the lower end; the base plate is provided with a base plate, the lower surface of the base plate is in sealing fit with the upper surface of the base plate, the base plate is provided with a first through hole penetrating through the base plate, the central line of the first through hole is positioned on the central line of the length direction of the base plate, the base plate is provided with a third through hole corresponding to the first through hole, the third through hole is communicated with the first through hole, the surface of the base plate is also provided with a first groove and a second groove along the width direction, one end of the first groove is communicated with the first through hole, the other end of the first groove extends out of the base plate, two ends of the second groove extend out of the base plate, the opening of the base plate corresponding to one side of the first groove and the second groove extending out of the base plate is provided with a mounting hole, the lower end of the mounting hole is provided with a mounting pipe, and the lower end of the mounting pipe is, the aviation connector is hermetically connected with the mounting pipe, and the third through hole is connected with a first connecting pipe used for connecting vacuum-pumping equipment; be provided with the heating jig on the backing plate, the heating jig includes along two backup pads of the vertical setting of length direction of backing plate, press from both sides between two backup pads and be equipped with the silica gel hot plate, the lower extreme of silica gel hot plate with form the passageway between two backup pads and the bottom plate, the passageway with first via hole intercommunication, the power source of silica gel hot plate pass through the wire with the aviation articulate of installation pipe lower extreme, two backup pads are kept away from one side of silica gel hot plate all is provided with a plurality of heat conduction fins, heat conduction fin level sets up.
Wherein, the bottom plate is through closing with the box each other sealedly and form sealed cavity structure, the heating anchor clamps are used for depositing and heating laminate polymer battery, first connecting pipe is used for connecting evacuation equipment such as vacuum pump connection, in order to take out the air in the sealed cavity structure that is formed by bottom plate and box, form vacuum environment, the power source of silica gel hot plate is connected with aviation articulate through the wire that passes first recess and mounting hole and second recess and mounting hole respectively, aviation structure is connected with the power, be used for the silica gel hot plate power supply.
The utility model discloses during operation, box lid closes on the bottom plate and forms sealed cavity structure with the bottom plate, then silica gel hot plate and evacuation equipment work, the soft-packaged battery of silica gel hot plate heating placing between the heat conduction fin so that the moisture in the soft-packaged battery evaporates out, wherein, soft-packaged battery places between two heat conduction fins alone, therefore soft-packaged battery's heating effect is better, it is more even to be heated, therefore soft-packaged battery's moisture can evaporate out more fast, thereby effectively increased the evaporation efficiency of moisture; evacuating equipment takes out the air of thoughtlessly having moisture in with seal chamber through first connecting pipe, at the in-process of air extraction, air in the seal chamber passes through first recess, second recess and passageway enter into first via hole and third via hole then enter into evacuating equipment, in this process, air in the seal chamber can enter into first connecting pipe from a plurality of directions and reentrant evacuating equipment, consequently can extract the air of thoughtlessly having moisture in the seal chamber more evenly, can guarantee to mix the air of thoughtlessly having moisture in the outside of heating anchor clamps in the seal chamber directly in the passageway is taken out evacuating equipment, can effectively reduce the time and the scope of the air current of thoughtlessly having moisture through laminate polymer battery, and then can effectively increase drying efficiency.
Further, still be provided with the second via hole on the backing plate, the center of second via hole is located the length direction's of backing plate central line, just the second via hole with the passageway intercommunication, the bottom plate corresponds the second via hole is provided with the fourth via hole, the fourth via hole with second via hole intercommunication, the lower extreme of fourth via hole is provided with the second connecting pipe that is used for connecting the vacuum gauge.
The vacuum gauge is connected with the inside of the sealed cavity through the second connecting pipe, the fourth through hole and the second through hole and is used for measuring the vacuum degree inside the vacuum cavity and monitoring the vacuum degree inside the sealed cavity in real time.
The device comprises a base plate, a bottom plate, a box body, a bottom plate, a driving device and a supporting platform, wherein the base plate is arranged on the supporting platform, the supporting platform is also provided with a plurality of supporting columns, the supporting columns are vertically arranged around the base plate, the box body is arranged on the supporting columns in a vertically movable mode, the bottom plate is positioned right below the box body, the supporting platform is also provided with the driving device, and the driving device is in driving connection with the box body; and the supporting platform is provided with a fifth via hole and a sixth via hole corresponding to the third via hole and the fourth via hole respectively.
Supporting platform is used for supporting baseplate, and drive arrangement on it reciprocates along the support column of vertical setting for the drive box to realize opening and shutting of seal chamber, and then realize taking of laminate polymer battery on the heating anchor clamps and put.
Wherein, drive device drives actuating cylinder for driving actuating cylinder, drives actuating cylinder and fixes on supporting platform vertically, drives actuating cylinder's piston rod and box fixed connection.
Further, the bottom of one side of silica gel hot plate is kept away from to the backup pad still fixedly is provided with the fixed plate, the fixed plate laminating in the backing plate and with backing plate fixed connection.
The fixed plate is used for supporting the backup pad, with the joint strength who increases backup pad and backing plate, first recess can also be plugged up to the fixed plate simultaneously, second recess and first via hole opening outside the passageway, when guaranteeing the evacuation equipment evacuation, the air removes along the route that first recess, second recess and passageway formed, can be extracted from seal chamber's each side position with further assurance air, and not extracted in fixed position, and then improve laminate polymer battery's drying efficiency.
Furthermore, the edge of the bottom plate is provided with an annular sealing ring corresponding to the lower end face of the box body.
The sealing washer can increase the reliability of the seal structure between bottom plate and the box, guarantees seal chamber's sealed effect, and then improves the utility model discloses a drying effect.
The sealing ring is arranged corresponding to the edge of the lower end of the box body, and the cross section of the sealing ring is in an isosceles triangle shape with one angle upward.
When the box body moves downwards, the sealing ring can be clamped between the box body and the bottom plate, and the sealing ring is compressed and deformed at the moment, so that the reliability of a sealing structure between the box body and the bottom plate is improved; wherein, the lower extreme of sealing washer and bottom plate are in the same place through sealed ground fixed connection of gluing, and the sealing washer is the shrink form from up down, therefore the area of contact of the lower extreme of sealing washer and bottom plate is great, consequently the joint strength and the leakproofness of sealing washer and bottom plate are better, and the area of contact of the upper end of sealing washer and box is less, the pressure that the upper end of sealing washer received is bigger, then under the unchangeable prerequisite of box to the pressure of bottom plate, the deformation that the upper end of sealing washer produced is bigger, promptly under the unchangeable circumstances of drive power, the clearance between filling bottom plate and the box that can be better, can increase the reliability of the seal structure between box and the bottom plate under the circumstances of the drive power to actuating mechanism does.
Further, the backing plate is made of a heat insulating material.
The thermal insulation material can reduce the heat that the heating anchor clamps passed through the backing plate and transmitted away, and then can guarantee the heating effect of heating anchor clamps to laminate polymer battery, improves heating efficiency promptly, and wherein, thermal insulation material can adopt zirconia.
The principle and effect of the present invention will be further explained below with reference to the above technical solutions and the accompanying drawings:
the utility model discloses in, laminate polymer battery places between two heat conduction fins alone, and consequently laminate polymer battery's heating effect is better, be heated more evenly, and consequently laminate polymer battery's moisture can faster evaporation come out to the evaporation efficiency of moisture has effectively been increased.
Air in the seal chamber can enter into first connecting pipe reentrant evacuation equipment from a plurality of directions, consequently can extract the air of thoughtlessly having moisture in the seal chamber more evenly, can guarantee to mix the air of thoughtlessly having moisture in the outside of heating anchor clamps in the seal chamber directly via the passageway extraction evacuation equipment, can effectively reduce the air current who thoughtlessly has moisture through laminate polymer battery's time and scope, and then can effectively increase drying efficiency.
Drawings
Fig. 1 is a schematic structural diagram i of a rapid vacuum drying oven for lithium batteries according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
fig. 3 is a schematic structural diagram of a rapid vacuum drying oven for lithium batteries according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of the bottom plate according to the embodiment of the present invention.
Description of reference numerals:
1-supporting platform, 11-driving device, 21-bottom plate, 211-mounting hole, 22-box body, 23-supporting column, 24-heating clamp, 241-supporting plate, 242-silica gel heating plate, 243-fixing plate, 244-heat conducting fin, 25-backing plate, 251-first via hole, 252-second via hole, 253-first groove, 254-second groove, 3-vacuum-pumping equipment, 4-mounting tube, 41-aviation connector, 5-first connecting tube, 6-second connecting tube and 61-vacuum gauge.
Detailed Description
To facilitate understanding of those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and examples:
in the description, all terms of directions such as front, back, left and right refer to fig. 1.
As shown in fig. 1-4, a lithium battery rapid vacuum drying oven comprises a bottom plate 21 and a box body 22 which are mutually covered, wherein the bottom plate 21 is plate-shaped, and the box body 22 is an integrally formed structure with an opening at the lower end; the base plate 21 is provided with a base plate 25, the lower surface of the base plate 25 is in sealing fit with the upper surface of the base plate 21, the base plate 25 is provided with a first through hole 251 penetrating through the base plate 25, the central line of the first through hole 251 is located on the central line of the length direction of the base plate 25, the base plate 21 is provided with a third through hole corresponding to the first through hole 251, the third through hole is communicated with the first through hole 251, the surface of the base plate 25 is further provided with a first groove 253 and a second groove 254 along the width direction thereof, one end of the first groove 253 is communicated with the first through hole 251, the other end of the first groove 253 extends out of the base plate 25, both ends of the second groove 254 extend out of the base plate 25, the base plate 21 is provided with a mounting hole 211 corresponding to the opening of one side of the first groove 253 and the second groove 254 extending out of the base plate 25, the lower end of the mounting hole 211 is provided with a mounting pipe 4, the lower end of the mounting pipe 4 is provided with an aviation connector 41, the aviation connector 41 is hermetically connected with the mounting pipe 4, and the third via hole is connected with a first connecting pipe 5 for connecting a vacuum-pumping device 3; be provided with heating jig 24 on the backing plate 25, heating jig 24 includes along two backup pads 241 of the vertical setting of length direction of backing plate 25, press from both sides between two backup pads 241 and be equipped with silica gel hot plate 242, the lower extreme of silica gel hot plate 242 with form the passageway between two backup pads 241 and the bottom plate 21, the passageway with first via hole 251 intercommunication, the power source of silica gel hot plate 242 pass through the wire with the aviation connector 41 of installation pipe 4 lower extreme is connected, two backup pads 241 keep away from one side of silica gel hot plate 242 all is provided with a plurality of heat conduction fins 244, heat conduction fin 244 level sets up.
Wherein, the bottom plate 21 is sealed with the box 22 to form a sealed cavity structure, the heating fixture 24 is used for storing and heating the pouch battery, the first connecting pipe 5 is used for connecting the vacuum-pumping device 3 such as vacuum pump connection, so as to pump out the air in the sealed cavity structure formed by the bottom plate 21 and the box 22, forming a vacuum environment, the power interface of the silica gel heating plate 242 is connected with the aviation connector 41 through the wires respectively passing through the first groove 253 and the mounting hole 211 and the second groove 254 and the mounting hole 211, the aviation structure is connected with the power supply, so as to supply power to the silica gel heating plate 242.
The utility model discloses during operation, box 22 lid closes on bottom plate 21 and forms sealed cavity structure with bottom plate 21, then silica gel heating plate 242 and evacuation equipment 3 work, the soft-package battery of placing between heat conduction fin 244 is heated to the silica gel heating plate 242 so that the moisture in the soft-package battery evaporates out, wherein, soft-package battery places between two heat conduction fins 244 alone, therefore soft-package battery's heating effect is better, it is more even to be heated, therefore soft-package battery's moisture can evaporate out faster, thereby effectively increased the evaporation efficiency of moisture; vacuumizing equipment 3 takes out the air that thoughtlessly has moisture in with the seal chamber through first connecting pipe 5, at the in-process of taking out the air, the air in the seal chamber enters into first via hole 251 and third via hole then and enters into vacuumizing equipment 3 through first recess 253, second recess 254 and passageway, at this in-process, the air in the seal chamber can enter into first connecting pipe 5 from a plurality of directions and then enter into vacuumizing equipment 3, consequently can more evenly extract the air that thoughtlessly has moisture in the seal chamber, can guarantee to mix the air that has moisture in the outside of heating anchor clamps 24 in the seal chamber directly via the passageway and take out vacuumizing equipment 3, can effectively reduce the time and the scope that the air that thoughtlessly has moisture flows through soft packet battery, and then can effectively increase drying efficiency.
Further, still be provided with second via hole 252 on the backing plate 25, the center of second via hole 252 is located the length direction's of backing plate 25 central line, just second via hole 252 with the passageway intercommunication, bottom plate 21 corresponds second via hole 252 is provided with the fourth via hole, the fourth via hole with second via hole 252 intercommunication, the lower extreme of fourth via hole is provided with the second connecting pipe 6 that is used for connecting vacuum gauge 61.
The vacuum gauge 61 is connected with the inside of the sealed cavity through the second connecting pipe 6, the fourth via hole and the second via hole 252, and is used for measuring the vacuum degree inside the vacuum cavity and monitoring the vacuum degree inside the sealed cavity in real time.
Further, the device comprises a supporting platform 1, wherein the bottom plate 21 is arranged on the supporting platform 1, a plurality of supporting columns 23 are further arranged on the supporting platform 1, the supporting columns 23 are vertically arranged around the bottom plate 21, a box body 22 is arranged on the supporting columns 23 in a vertically movable manner, the bottom plate 21 is positioned right below the box body 22, a driving device 11 is further arranged on the supporting platform 1, and the driving device 11 is in driving connection with the box body 22; and the supporting platform 1 is provided with a fifth via hole and a sixth via hole corresponding to the third via hole and the fourth via hole respectively.
Supporting platform 1 is used for supporting baseplate 21, and drive arrangement 11 on it reciprocates along the support column 23 of vertical setting for drive box 22 to realize opening and shutting of seal chamber, and then realize taking and putting to the laminate polymer battery on heating anchor clamps 24.
Wherein, drive arrangement 11 drives actuating cylinder for driving actuating cylinder, drives actuating cylinder and fixes on supporting platform 1 vertically, drives actuating cylinder's piston rod and box 22 fixed connection.
Further, the bottom of one side that the backup pad 241 keeps away from the silica gel hot plate 242 is still fixed and is provided with fixed plate 243, fixed plate 243 laminate in backing plate 25 and with backing plate 25 fixed connection.
The fixing plate 243 is used for supporting the supporting plate 241 to increase the connection strength between the supporting plate 241 and the pad 25, and meanwhile, the fixing plate 243 can also block the openings of the first groove 253, the second groove 254 and the first via hole 251 outside the channel, so as to ensure that air moves along the path formed by the first groove 253, the second groove 254 and the channel when the vacuum pumping device 3 pumps vacuum, so as to further ensure that air can be pumped from each position of the sealed cavity instead of being pumped at a fixed position, thereby improving the drying efficiency of the pouch battery.
Further, an annular sealing ring is arranged on the edge of the bottom plate 21 corresponding to the lower end face of the box body 22.
The sealing washer can increase the reliability of the seal structure between bottom plate 21 and the box 22, guarantees seal chamber's sealed effect, and then improves the utility model discloses a drying effect.
The sealing ring is arranged corresponding to the edge of the lower end of the box body 22, and the cross section of the sealing ring is in an isosceles triangle shape with one angle upward.
When the box body moves downwards, the sealing ring is clamped between the box body and the bottom plate, and the sealing ring is compressed and deformed at the moment, so that the reliability of the sealing structure between the box body 22 and the bottom plate 21 is improved; wherein, the lower extreme of sealing washer and bottom plate 21 are in the same place through sealed ground fixed connection of gluing, and the sealing washer is the shrink form from up down, therefore the lower extreme of sealing washer and bottom plate 21's area of contact is great, consequently the joint strength and the leakproofness of sealing washer and bottom plate 21 are better, and the upper end of sealing washer and box 22's area of contact is less, the pressure that the upper end of sealing washer received is bigger, then under the unchangeable prerequisite of box 22 to bottom plate 21's pressure, the deformation that the upper end of sealing washer produced is bigger, under the unchangeable circumstances of drive power promptly, the clearance between filling bottom plate 21 and the box 22 that can be better, can increase the reliability of the seal structure between box 22 and the bottom plate 21 under the circumstances of the drive power to actuating mechanism.
Further, the pad 25 is made of a heat insulating material.
The heat that heating anchor clamps 24 passed through backing plate 25 and transmitted can be reduced to thermal insulation material, and then can guarantee heating anchor clamps 24 to laminate polymer battery's heating effect, improves heating efficiency promptly, and wherein, thermal insulation material can adopt zirconia.
The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. A quick vacuum drying oven for lithium batteries is characterized by comprising a bottom plate and a box body which are mutually covered, wherein the bottom plate is plate-shaped, and the box body is of an integrally formed structure with an opening at the lower end; the base plate is provided with a base plate, the lower surface of the base plate is in sealing fit with the upper surface of the base plate, the base plate is provided with a first through hole penetrating through the base plate, the central line of the first through hole is positioned on the central line of the length direction of the base plate, the base plate is provided with a third through hole corresponding to the first through hole, the third through hole is communicated with the first through hole, the surface of the base plate is also provided with a first groove and a second groove along the width direction, one end of the first groove is communicated with the first through hole, the other end of the first groove extends out of the base plate, two ends of the second groove extend out of the base plate, the opening of the base plate corresponding to one side of the first groove and the second groove extending out of the base plate is provided with a mounting hole, the lower end of the mounting hole is provided with a mounting pipe, and the lower end of the mounting pipe is, the aviation connector is hermetically connected with the mounting pipe, and the third through hole is connected with a first connecting pipe used for connecting vacuum-pumping equipment; be provided with the heating jig on the backing plate, the heating jig includes along two backup pads of the vertical setting of length direction of backing plate, press from both sides between two backup pads and be equipped with the silica gel hot plate, the lower extreme of silica gel hot plate with form the passageway between two backup pads and the bottom plate, the passageway with first via hole intercommunication, the power source of silica gel hot plate pass through the wire with the aviation articulate of installation pipe lower extreme, two backup pads are kept away from one side of silica gel hot plate all is provided with a plurality of heat conduction fins, heat conduction fin level sets up.
2. The lithium battery rapid vacuum drying oven according to claim 1, further comprising a supporting platform, wherein the bottom plate is arranged on the supporting platform, the supporting platform is further provided with a plurality of supporting columns, the supporting columns are vertically arranged around the bottom plate, a box body is arranged on the supporting columns in a vertically movable manner, the bottom plate is positioned right below the box body, the supporting platform is further provided with a driving device, and the driving device is in driving connection with the box body; and the supporting platform is provided with a fifth via hole and a sixth via hole corresponding to the third via hole and the fourth via hole respectively.
3. The lithium battery rapid vacuum drying oven according to claim 2, wherein a fixing plate is further fixedly arranged at the bottom of one side of the supporting plate away from the silica gel heating plate, and the fixing plate is attached to the backing plate and fixedly connected with the backing plate.
4. The lithium battery rapid vacuum drying oven according to claim 3, wherein the edge of the bottom plate is provided with an annular sealing ring corresponding to the lower end surface of the oven body.
5. The lithium battery rapid vacuum drying oven according to claim 4, wherein the sealing ring is disposed corresponding to an edge of the lower end of the oven body, and the cross section of the sealing ring is in an isosceles triangle shape with one of the angular directions upward.
6. The lithium battery rapid vacuum drying oven according to claim 1, wherein the backing plate is made of a heat insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020586690.4U CN211926333U (en) | 2020-04-20 | 2020-04-20 | Quick vacuum drying oven of lithium cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020586690.4U CN211926333U (en) | 2020-04-20 | 2020-04-20 | Quick vacuum drying oven of lithium cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211926333U true CN211926333U (en) | 2020-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020586690.4U Active CN211926333U (en) | 2020-04-20 | 2020-04-20 | Quick vacuum drying oven of lithium cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211926333U (en) |
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2020
- 2020-04-20 CN CN202020586690.4U patent/CN211926333U/en active Active
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