CN111843833A - Third-generation semiconductor dry ice cooling system - Google Patents
Third-generation semiconductor dry ice cooling system Download PDFInfo
- Publication number
- CN111843833A CN111843833A CN202010821725.2A CN202010821725A CN111843833A CN 111843833 A CN111843833 A CN 111843833A CN 202010821725 A CN202010821725 A CN 202010821725A CN 111843833 A CN111843833 A CN 111843833A
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- dry ice
- dry
- refrigerator
- cooling system
- ice cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
- B24B55/03—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant designed as a complete equipment for feeding or clarifying coolant
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
- B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a third generation semiconductor dry ice cooling system, the structure of which comprises a grinder main body and a pushing device, the pushing device is arranged on the left side of a dry refrigerator, a guide rod is pushed under the action of an electric push rod, the right movement of the push rod is realized under the action of a connecting rod, then a pushing plate can be driven along with the right movement of the push rod to push dry ice stored in a storage box into the dry refrigerator, thereby realizing the advantage of automatic pushing of the dry ice, a sealing mechanism is arranged at the lower end of the left side of the dry refrigerator, when the pushing movement of the pushing plate is carried out, a sealing plate is pushed into a collecting groove at a feed inlet, after the pushing movement is finished, a torsion spring rebounds to restore the sealing plate, thereby sealing the feed inlet, thereby achieving the advantage of heat preservation of the unused dry ice, a siphon spray nozzle is driven by cooling gas which is discharged through the operation of a compression pump, and the polishing solution inside the polishing pad is contacted with the polishing pad to realize cooling, so that the semiconductor can be rapidly cooled.
Description
Technical Field
The invention relates to the technical field of semiconductor dry ice cooling systems, in particular to a third-generation semiconductor dry ice cooling system.
Background
The semiconductor refers to a material with electric conductivity between a conductor and an insulator at normal temperature, and is applied to the fields of integrated circuits, consumer electronics, communication systems, photovoltaic power generation, illumination, high-power conversion and the like, for example, a diode is a device manufactured by adopting the semiconductor, a grinding machine is generally needed to grind the surface of the semiconductor for better use of the semiconductor, and in order to prevent the precision from being influenced by overheating in the grinding process of the semiconductor, a dry ice cooling system is arranged, so that the polishing solution not only has a reinforced grinding effect, but also has a cooling effect, and the grinding efficiency of the semiconductor is greatly improved.
At present, when a semiconductor dry ice cooling system is used, dry ice needs to be continuously used, and the dry ice belongs to consumables, so that after the dry ice is used up, a user needs to add the dry ice again, and the dry ice is continuously and repeatedly added, so that the workload of the user is increased, and the user cannot well perform other work.
Disclosure of Invention
Technical problem to be solved
In order to overcome the defects of the prior art, a third-generation semiconductor dry ice cooling system is provided, and the problem that when the semiconductor dry ice cooling system is used, the dry ice needs to be continuously used and belongs to consumables is solved, so that after the dry ice is used up, a user needs to add the dry ice again and continuously add the dry ice repeatedly, the workload of the user is increased, other work cannot be well carried out by the user, and the effect of automatically pushing the dry ice is achieved.
(II) technical scheme
The invention is realized by the following technical scheme: the invention provides a third-generation semiconductor dry ice cooling system, which comprises a grinding machine main body and a pushing device, wherein the lower end of the grinding machine main body is fixedly connected with a supporting pad, the pushing device is arranged on the left side of a dry refrigerator and consists of an electric push rod, a guide rod, a connecting block, a push rod, a pushing plate, a magnet, a telescopic rod, a sealing mechanism, a storage box and a feeding hole, the electric push rod is arranged on the left side of the grinding machine main body, the left side of the electric push rod is rotatably connected with the guide rod, the middle part of the upper end of the left side of the guide rod is rotatably connected with the connecting rod, the upper end of the right side of the connecting rod is rotatably connected with the connecting block, the connecting block is fixedly welded with the lower end of the left side of the storage box, the left side, magnet adsorbs fixedly with the telescopic link right side, the telescopic link left side is pegged graft fixedly with the bin, sealing mechanism sets up inside the feed inlet, bin welded fastening is in dry refrigerator left side, the feed inlet is seted up in dry refrigerator left side lower extreme.
Further, pusher comprises closing plate, pivot, torsional spring and receipts groove, the closing plate lower extreme is connected with the rotation of receipts groove through the pivot, pivot middle part surface encircles and is connected with the torsional spring, the torsional spring lower extreme is laminated with the collection groove mutually, collect the groove and offer in dry refrigerator left side lower extreme.
Furthermore, the upper end of the grinder main body is provided with a splash-proof ring, the inner part of the splash-proof ring is rotationally connected with a grinding disc, a dry refrigerator is welded and fixed at the upper end of the left side of the grinder main body, a compression pump is arranged at the upper end of the dry refrigerator, the upper end of the right side of the dry refrigerator is provided with a vacuum pump, the lower end of the left side of the vacuum pump is fixedly inserted with the dry refrigerator, the lower end of the right side of the vacuum pump is inserted with a siphon spraying nozzle which is arranged on the left side in the spraying pipe, the lower end of the siphon spray nozzle is fixedly inserted with a polishing solution box, the polishing solution box is arranged at the lower end of the right side of the dry refrigerator, a liquid inlet is arranged at the upper end of the right side of the polishing liquid box, the right side of the dry refrigerator is fixedly inserted with the spray pipe, a control panel is arranged at the right side of the upper end of the front side of the grinding machine main body, and the left side of the control panel is provided with a power cord, and the grinding disc, the compression pump and the vacuum pump are all electrically connected with the control panel.
Further, the guide rod is rotated by an angle of 80 degrees, and the overall thickness of the guide rod is 2.5 CM.
Further, the push rod can push a maximum distance of 20CM, and the outer surface of the push rod is smooth.
Furthermore, the pushing plate is connected with the lower end inside the storage box in a sliding mode through a groove, and an extension block is arranged on the right side of the pushing plate.
Further, the upper end of the storage box is provided with a top cover, and the inner wall of the storage box is fixedly adhered with a sealing layer.
Furthermore, the upper end of the torsion spring is attached to the sealing plate, and the maximum elasticity of the torsion spring is 8N.
Furthermore, the rotating shaft is made of a zinc alloy material.
Furthermore, the torsion spring is made of carbon steel.
(III) advantageous effects
Compared with the prior art, the invention has the following beneficial effects:
the method has the advantages that: according to the third-generation semiconductor dry ice cooling system, the pushing device is arranged on the left side of the dry refrigerator, the guide rod is pushed under the action of the connecting rod under the operation of the electric push rod, the push rod is moved to the right, then the pushing plate can be driven to push dry ice stored in the storage box to the inside of the dry refrigerator along with the right movement of the push rod, and therefore the advantage of automatic pushing of the dry ice is achieved.
The method has the advantages that: according to the third-generation semiconductor dry ice cooling system, the sealing mechanism is arranged at the lower end of the left side of the dry refrigerator, the sealing plate can be pushed into the collecting groove at the feeding port when the pushing plate is pushed to move, and after the pushing movement is completed, the torsion spring rebounds to reset the sealing plate to seal the feeding port, so that the advantage of heat preservation of unused dry ice is achieved.
The method has the advantages that: according to the third-generation semiconductor dry ice cooling system, the siphon spray nozzle is driven by cooling gas from compressed air through the operation of the compression pump, and the cooling gas is contacted with the polishing liquid inside to realize cooling, so that the rapid cooling of the semiconductor is realized.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic front sectional view of the present invention;
FIG. 3 is a schematic front sectional view of a pushing device according to the present invention;
FIG. 4 is an enlarged schematic view of a pushing device A according to the present invention;
fig. 5 is an enlarged schematic view of the sealing mechanism B of the present invention.
In the figure: the grinding machine comprises a grinding machine main body-1, a supporting pad-2, a splash-proof ring-3, a grinding disc-4, a dry refrigerator-5, a compression pump-6, a vacuum pump-7, a siphon spray nozzle-8, a polishing solution box-9, a liquid inlet-10, a spray pipe-11, a control panel-12, a power line-13, a pushing device-14, an electric push rod-141, a guide rod-142, a connecting rod-143, a connecting block-144, a push rod-145, a push plate-146, a magnet-147, a telescopic rod-148, a sealing mechanism-149, a storage box-1410, a feed inlet-1411, a sealing plate-1491, a rotating shaft-1492, a torsion spring-1493 and a collecting groove-1494.
Detailed Description
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the present invention provides a third generation semiconductor dry ice cooling system: the dry refrigerator comprises a grinding machine main body 1 and a pushing device 14, wherein the lower end of the grinding machine main body 1 is fixedly connected with a supporting pad 2, the pushing device 14 is arranged on the left side of a dry refrigerator 5, the pushing device 14 consists of an electric push rod 141, a guide rod 142, a connecting rod 143, a connecting block 144, a push rod 145, a push plate 146, a magnet 147, an expansion rod 148, a sealing mechanism 149, a storage box 1410 and a feeding hole 1411, the electric push rod 141 is arranged on the left side of the grinding machine main body 1, the left side of the electric push rod 141 is rotatably connected with the guide rod 142, the middle part of the upper end of the left side of the guide rod 142 is rotatably connected with the connecting rod 143, the upper end of the right side of the connecting rod 143 is rotatably connected with the connecting block 144, the connecting block 144 is fixedly welded with the lower end of the left side of the storage box 1410, magnet 147 adsorbs fixedly with telescopic link 148 right side, and be favorable to driving the flexible activity that realizes telescopic link 148, telescopic link 148 left side is pegged graft fixedly with storage box 1410, and be favorable to when the propelling movement, the upper end is placed the dry ice and can not be dropped off, sealing mechanism 149 sets up inside feed inlet 1411, and be favorable to keeping warm to the inside dry ice that does not use of storage box 1410 sealed, storage box 1410 welded fastening is in dry refrigerator 5 left side, feed inlet 1411 is seted up in dry refrigerator 5 left side lower extreme.
The pushing device 14 is composed of a sealing plate 1491, a rotating shaft 1492, a torsion spring 1493 and a collecting groove 1494, the lower end of the sealing plate 1491 is rotatably connected with the collecting groove 1494 through the rotating shaft 1492, the torsion spring 1493 is connected on the outer surface of the middle part of the rotating shaft 1492 in a surrounding manner, the lower end of the torsion spring 1493 is attached to the collecting groove 1494, and the collecting groove 1494 is arranged at the lower end of the left side of the dry refrigerator 5.
Wherein, the upper end of the grinder main body 1 is provided with a splash-proof ring 3, the inner part of the splash-proof ring 3 is rotatably connected with a grinding disc 4, the upper end of the left side of the grinder main body 1 is fixedly welded with a dry refrigerator 5, the upper end of the dry refrigerator 5 is provided with a compression pump 6, the upper end of the right side of the dry refrigerator 5 is provided with a vacuum pump 7, the lower end of the left side of the vacuum pump 7 is fixedly spliced with the dry refrigerator 5, the lower end of the right side of the vacuum pump 7 is spliced with a siphon spray nozzle 8, the siphon spray nozzle 8 is arranged at the left side in a spray pipe 11, the lower end of the siphon spray nozzle 8 is fixedly spliced with a polishing solution tank 9, the polishing solution tank 9 is arranged at the lower end of the right side of the dry refrigerator 5, the upper end of the right side of the polishing solution tank, and the left side of the control panel 12 is provided with a power cord 13, and the grinding disc 4, the compression pump 6 and the vacuum pump 7 are all electrically connected with the control panel 12.
Wherein the rotating angle of the guide rod 142 is 80 °, and the overall thickness of the guide rod 142 is 2.5CM, so that the reciprocating pushing movement of the push rod 145 can be realized by the rotation of the guide rod 142.
The push rod 145 can push the push rod with a maximum distance of 20CM, and the outer surface of the push rod 145 is smooth, so that the push rod can push the push rod to and fro more smoothly.
The pushing plate 146 is slidably connected with the lower end of the inside of the storage box 1410 through a groove, and the right side of the pushing plate 146 is provided with an extension block, so that the moving and pushing effects of the pushing plate 146 can be further enhanced.
Wherein, bin 1410 upper end is provided with the top cap to bin 1410 inner wall all pastes and is fixed with the sealing layer, makes can be fine store the heat preservation to the dry ice that does not use.
The upper end of the torsion spring 1493 is attached to the sealing plate 1491, and the maximum elasticity of the torsion spring 1493 is 8N, so that the sealing plate 1491 can be driven to automatically rotate, and the automatic closing and sealing of the feed inlet 1411 can be realized.
The rotating shaft 1492 is made of a zinc alloy material.
Wherein, the torsion spring 1493 is made of carbon steel.
This patent the pivot 1492: the shaft is a shaft which is necessary for connecting the main parts of the product and is used for bearing bending moment and torque in the rotating work; the torsion spring 1493: torsion springs belong to the group of helical springs, the ends of which are fixed to other components, which when they rotate around the center of the spring pull them back to their original position, creating a torque or rotational force, which can store and release angular energy or statically fix a device by rotating the arm around the central axis of the body, which is usually solid, but with a pitch between the coils to reduce friction.
The third generation semiconductor dry ice cooling system has the following working principle;
firstly, a user electrically connects a control panel 12, then dry ice and polishing liquid are respectively added into a dry refrigerator 5 and a polishing liquid box 9, then a semiconductor to be ground is placed at the upper end of a grinding disc 4, then the grinding disc 4 is operated to grind the outer surface of the semiconductor, then the user operates a compression pump 6 at the upper end of the left side of the dry refrigerator 5 to make external compressed air enter the dry refrigerator 5 to reduce the temperature of the compressed air, then the user can respectively operate a vacuum pump 7 to make the cooled compressed air in the dry refrigerator 5 be transmitted to a siphon spray nozzle 8, so that the siphon spray nozzle 8 carries out siphon atomization to suck the polishing liquid arranged in the polishing liquid box 9 up and spray the polishing liquid from the left side, and in the process, the polishing liquid is contacted with the cooled compressed air to realize cooling activity, then the polishing liquid which finishes the cooling activity is transmitted to the upper end of the grinding disc 4 from the pipe orifice of the spray pipe 11, and then the temperature of the semiconductor grinding can be reduced under the action of the cooled polishing liquid, so that the quality of the semiconductor grinding can be ensured;
secondly, when the semiconductor dry ice cooling system is used, dry ice is required to be continuously used, and the dry ice belongs to consumables, so that after the dry ice is used up, a user is required to add the dry ice again and continuously and repeatedly add the dry ice, the workload of the user is increased, and the user cannot well perform other work;
thirdly, by arranging the pushing device 14 on the left side of the dry refrigerator 5, when the dry ice placed inside the dry refrigerator 5 is used, the user operates the electric push rod 141 to push the guide rod 142 rotationally connected on the left side by the electric push 141, then the push rod 145 extending out of the storage tank 1410 can be moved to the right under the cooperation of the rotation of the guide rod 142 and the connecting rod 143, then the push rod 145 can be moved to the right, the push plate 146 arranged at the lower end inside the storage tank 1410 can be pushed, and then the dry ice stored inside the storage tank 1410 can be pushed into the dry refrigerator 5 under the pushing of the push plate 146, so that the dry ice can be automatically pushed;
fourthly, in order to prevent the other piece of dry ice at the upper end from falling down when the pushing plate 146 pushes the dry ice, the telescopic rod 148 is further arranged at the upper end of the left side of the pushing plate 146 to receive the dry ice at the upper end, when the pushing plate 146 moves, the telescopic rod 148 stretches to the maximum distance from the left side to the right side under the absorption of the magnet 147 at the upper end of the left side of the pushing plate 146, and then the dry ice at the upper end contacts with the telescopic rod 148, so that the dry ice at the upper end can be prevented from falling down, and the pushing plate 146 cannot reset;
fifthly, in order not to carry out the propelling movement of dry ice, both guarantee the heat preservation of the inside dry ice of bin 1410, still guarantee the use of the inside dry ice of dry refrigerator 5, still through having set up sealing mechanism 149 at the left side lower extreme of dry refrigerator 5, when the pushing plate 146 carries out the propelling movement, the dry ice of propelling movement can be with vertical closing plate 1491 right push collect inside groove 1494, guarantee that the dry ice that uses can be fine enter into dry refrigerator 5 inside, then after accomplishing the propelling movement, closing plate 1491 can be under the effect of torsional spring 1493 resilience, it is vertical state to rotate again, come to seal feed inlet 1411, guarantee the heat preservation effect, thereby reached to not using the heat retaining advantage of dry ice.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described, and the standard parts used in the present invention are all available on the market, the special-shaped parts can be customized according to the description and the accompanying drawings, the specific connection mode of each part adopts the conventional means of bolt and rivet, welding and the like mature in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and the details are not described herein.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The third-generation semiconductor dry ice cooling system comprises a grinding machine main body (1), wherein the lower end of the grinding machine main body (1) is fixedly connected with a supporting pad (2);
the method is characterized in that: still include pusher (14), pusher (14) sets up in dry refrigerator (5) left side, pusher (14) comprises electric putter (141), guide arm (142), connecting rod (143), connecting block (144), push rod (145), slurcam (146), magnet (147), telescopic link (148), sealing mechanism (149), storage box (1410) and feed inlet (1411), electric putter (141) sets up in grinding machine main part (1) left side to electric putter (141) left side and guide arm (142) rotate to be connected, guide arm (142) left side upper end middle part rotates with connecting rod (143) to be connected, connecting rod (143) right side upper end rotates with connecting block (144) to be connected, connecting block (144) and storage box (1410) left side lower extreme welded fastening, push rod (145) left side and guide arm (142) rotate to be connected, and push rod (145) right side and catch plate (146) welded fastening, inside magnet (147) that is provided with in catch plate (146) upper end to catch plate (146) and the inside lower extreme sliding connection of bin (1410), magnet (147) and telescopic link (148) right side adsorb fixedly, telescopic link (148) left side and bin (1410) grafting are fixed, sealing mechanism (149) set up inside feed inlet (1411), bin (1410) welded fastening is in dry refrigerator (5) left side, feed inlet (1411) are seted up in dry refrigerator (5) left side lower extreme.
2. A third generation semiconductor dry ice cooling system according to claim 1, wherein: the pushing device (14) is composed of a sealing plate (1491), a rotating shaft (1492), a torsion spring (1493) and a collecting groove (1494), the lower end of the sealing plate (1491) is rotatably connected with the collecting groove (1494) through the rotating shaft (1492), the torsion spring (1493) is connected to the outer surface of the middle of the rotating shaft (1492) in a surrounding mode, the lower end of the torsion spring (1493) is attached to the collecting groove (1494), and the collecting groove (1494) is formed in the lower end of the left side of the dry refrigerator (5).
3. A third generation semiconductor dry ice cooling system according to claim 1, wherein: the upper end of the grinder body (1) is provided with a splash-proof ring (3), the inner part of the splash-proof ring (3) is rotatably connected with a grinding disc (4), the upper end of the left side of the grinder body (1) is fixedly welded with a dry refrigerator (5), the upper end of the dry refrigerator (5) is provided with a compression pump (6), the upper end of the right side of the dry refrigerator (5) is provided with a vacuum pump (7), the lower end of the left side of the vacuum pump (7) is fixedly spliced with the dry refrigerator (5), the lower end of the right side of the vacuum pump (7) is spliced with a siphon spray nozzle (8), the siphon spray nozzle (8) is arranged at the left side inside a spray pipe (11), the lower end of the siphon spray nozzle (8) is fixedly spliced with a polishing liquid box (9), the polishing liquid box (9) is arranged at the lower end of the right side of the dry, the right side of the dry refrigerator (5) is fixedly connected with the spray pipe (11) in an inserting mode, the right side of the upper end of the front side of the grinding machine main body (1) is provided with a control panel (12), the left side of the control panel (12) is provided with a power line (13), and the grinding disc (4), the compression pump (6) and the vacuum pump (7) are all electrically connected with the control panel (12).
4. A third generation semiconductor dry ice cooling system according to claim 1, wherein: the rotating angle of the guide rod (142) is 80 degrees, and the overall thickness of the guide rod (142) is 2.5 CM.
5. A third generation semiconductor dry ice cooling system according to claim 1, wherein: the push rod (145) can push the maximum distance to be 20CM, and the outer surface of the push rod (145) is smooth.
6. A third generation semiconductor dry ice cooling system according to claim 1, wherein: the pushing plate (146) is connected with the lower end in the storage box (1410) in a sliding mode, and the right side of the pushing plate (146) is provided with an extending block.
7. A third generation semiconductor dry ice cooling system according to claim 1, wherein: the upper end of the storage box (1410) is provided with a top cover, and the inner wall of the storage box (1410) is fixedly adhered with a sealing layer.
8. A third generation semiconductor dry ice cooling system according to claim 2, wherein: the upper end of the torsion spring (1493) is attached to the sealing plate (1491), and the maximum elasticity of the torsion spring (1493) is 8N.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010821725.2A CN111843833A (en) | 2020-08-15 | 2020-08-15 | Third-generation semiconductor dry ice cooling system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010821725.2A CN111843833A (en) | 2020-08-15 | 2020-08-15 | Third-generation semiconductor dry ice cooling system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112722531A (en) * | 2020-12-24 | 2021-04-30 | 苏州浩宇南天信息科技有限公司 | Low-temperature storage device for medical drug transportation and using method thereof |
| CN114043225A (en) * | 2021-12-07 | 2022-02-15 | 徐州市鑫宸泰汽车部件有限公司 | Bottom welding slag water-cooling collection type automobile sheet metal part welding device |
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2020
- 2020-08-15 CN CN202010821725.2A patent/CN111843833A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112722531A (en) * | 2020-12-24 | 2021-04-30 | 苏州浩宇南天信息科技有限公司 | Low-temperature storage device for medical drug transportation and using method thereof |
| CN114043225A (en) * | 2021-12-07 | 2022-02-15 | 徐州市鑫宸泰汽车部件有限公司 | Bottom welding slag water-cooling collection type automobile sheet metal part welding device |
| CN114043225B (en) * | 2021-12-07 | 2023-01-10 | 徐州云陌机械科技有限公司 | Bottom welding slag water-cooling collection type automobile sheet metal part welding device |
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