CN207635687U - Semiconductor refrigeration hutch suitable for cold chain transportation - Google Patents
Semiconductor refrigeration hutch suitable for cold chain transportation Download PDFInfo
- Publication number
- CN207635687U CN207635687U CN201721288158.9U CN201721288158U CN207635687U CN 207635687 U CN207635687 U CN 207635687U CN 201721288158 U CN201721288158 U CN 201721288158U CN 207635687 U CN207635687 U CN 207635687U
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- Prior art keywords
- water
- hutch
- case lid
- refrigeration
- valve
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 55
- 238000005057 refrigeration Methods 0.000 title claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 97
- 238000003860 storage Methods 0.000 claims abstract description 38
- 238000001816 cooling Methods 0.000 claims abstract description 27
- 239000005457 ice water Substances 0.000 claims abstract description 9
- 238000012546 transfer Methods 0.000 claims abstract description 3
- 239000012774 insulation material Substances 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 5
- 239000010960 cold rolled steel Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 238000010257 thawing Methods 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 7
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000010030 laminating Methods 0.000 abstract 1
- 238000009825 accumulation Methods 0.000 description 4
- 230000035508 accumulation Effects 0.000 description 4
- 235000012055 fruits and vegetables Nutrition 0.000 description 4
- 235000013372 meat Nutrition 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000013622 meat product Nutrition 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 208000005168 Intussusception Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model discloses a semiconductor refrigeration hutch suitable for cold chain transportation, including heat retaining hutch box, the box top be equipped with a refrigeration case lid, the refrigeration case lid on be equipped with semiconductor refrigeration module, semiconductor refrigeration module include semiconductor refrigeration subassembly, semiconductor refrigeration subassembly include the semiconductor refrigeration piece, semiconductor refrigeration piece include cooling surface and refrigeration face, wherein the cooling surface is upwards, with the laminating of radiating fin, the water pipe inserts in the radiating fin, with the heat transfer of radiating surface department in the ice water; the refrigerating surface is downward and is jointed with the cold guide fin. The utility model discloses use semiconductor refrigeration to provide cold volume in the storage box, and realize the heat dissipation of circulation frozen water cooling method at the semiconductor hot junction, can effectively reduce the hot junction temperature, improve refrigeration mechanism's radiating efficiency to improve refrigeration mechanism's refrigeration efficiency. The system has simple structure and is very suitable for cold chain transportation and distribution processes.
Description
Technical field
The utility model is related to a kind of semiconductor refrigerating hutch suitable for cold chain transportation, belong to logistics cold chain transportation neck
Domain.
Background technology
With the development of logistics, the type of logistics distribution cargo is more various, and fresh dispatching has become current Taobao, capital
One of the main business in east etc..However, logistics distribution is fresh and meat products has temperature certain requirement, carry out refrigeration or
Freezing.The refrigeration case of original technology mostly uses greatly compression or absorption refrigeration mode, and equipment volume is big, and weight is big, and cost is high,
It can not minimize, its application is caused to be restricted.And common small-sized cooling case is only foam babinet, can not be ensured for a long time
Transport.Semiconductor refrigerating technology is applied to refrigeration case, it is possible to reduce the volume weight of refrigeration case is saved cost, and increased
Reliability in transportational process and convenience.
Have partial monopoly and semiconductor refrigerating is applied to refrigeration case field.Patent CN106091522A《Based on semiconductor
The cold-storage delivery case of refrigeration》Using semiconductor refrigerating, heat dissipation and conduction cooling are carried out using heat pipe and micro heat pipe, finally still passed through
Air radiates.CN106524567A《A kind of box semiconductor cooling device》Equally use semiconductor refrigerating, semiconductor refrigerator
The radiating end of structure is inserted into heat dissipation channel, radiates eventually by air.Two patents using air cooling all the problem is that imitated
Rate is relatively low, and when environment temperature is very high, hot-side heat dissipation is undesirable, can not deep refrigerating.In conclusion existing semiconductor refrigerating
System has the following defects：1, heat dissipation and conduction cooling it is less efficient, refrigeration effect is undesirable.2, hot junction uses wind-cooling heat dissipating, very
Difficulty reaches lower cryogenic temperature, can not adapt to dispatching cargo temperature and control more demanding occasion.
Hutch input dc power of the utility model based on semiconductor refrigerating technology can freeze, not complicated equipment
And pipeline, refrigeration case volume and manufacturing cost can be effectively reduced；Hot junction is cooled down using ice water, can effectively reduce hot-side temperature, real
Existing depth cooling.The utility model can provide new thinking and scheme for the design and manufacture of cold chain transportation field refrigeration case.
Invention content
The purpose of the utility model is to overcome the shortcomings of the prior art, provide it is a kind of simple in structure, compact and
The semiconductor refrigerating hutch of efficient, energy-saving and environment-friendly cycle ice water type of cooling heat dissipation.
A kind of semiconductor refrigerating hutch suitable for cold chain transportation provided by the utility model, it is characterised in that including temperature
Spend sensor (1), fan (2-1), fan (2-2), fan (2-3), hutch (3), switch (4), refrigeration case lid (5), control
Device (6), grid (7), radiating fin (8), power supply (9), thermal insulation layer (10), semiconductor chilling plate (11), conduction cooling fin (12),
Water inlet pipe (13-1), outlet pipe (13-2), water pipe (13-3), water pump (14-1), immersible pump (14-2), water tank handle (15), water
Case (16), thermal insulation material (17), water level line (18), ice storage box (19), ammeter (20), pressure regulator (21), valve (22-1), valve
Door (22-2), valve (22-3), case lid (23).
Refrigeration case lid (5) is wherein equipped at the top of hutch (3).Hutch (3) left side is equipped with fan (2-1) and temperature passes
Sensor (1), right edge are equipped with ice storage box (19).Ice storage box (19) upper end is equipped with water tank (16), and water tank (16) is located at refrigeration case lid
(5) right edge.
Freeze and be equipped with 2 chip semiconductor cooling pieces (11) in case lid (5), cold end is towards on the inside of tank wall, and hot junction is towards tank wall
Outside.Semiconductor chilling plate (11) cold end is connected with one end of conduction cooling fin (12), and fan (2-2) is affixed on conduction cooling fin (12)
The other end；Semiconductor chilling plate (11) hot junction is connected with one end of radiating fin (8), and fan (2-3) is affixed on radiating fin (8)
The other end.Thermal insulation layer (10) be set to semiconductor chilling plate (11) surrounding and positioned at conduction cooling fin (12) and radiating fin (8) it
Between.Radiating fin (8) left side is equipped with switch (4) and control device (6)；Power supply (9) is equipped on the right of radiating fin (8).Control dress
It sets and is equipped with ammeter (20) and pressure regulator (21) between (6) and power supply (9), ammeter (20) and power supply (9) series connection, pressure regulator
(21) and power supply (9) is in parallel.Refrigeration case lid (5) top surface is grid (7).
For radiating fin (8) there are one entrance and one outlet, entrance taps into water pipe (13-1), outlet connected water outlet pipe (13-
2).There are one entrance and one outlet, entrance connected water outlet pipe (13-2), outlets to tap into water pipe (13-1) for ice storage box (19) body.Into
The end water pipe (13-1) connects immersible pump (14-2), and water inlet pipe (13-1) and the end outlet pipe (13-2) are submerged in ice storage box (19)
Water level line (18) is below.The horizontal segment that water inlet pipe (13-1) is in refrigeration case lid (5) is equipped with valve (22-3), outlet pipe
The horizontal segment that (13-2) is in refrigeration case lid (5) is equipped with valve (22-2).Water tank (16) there are one water tank handle (15) and
One interface, interface connect with the side of water pipe (13-3).The other side of water pipe (13-3) connects with outlet pipe (13-2).Water pipe
The horizontal segment that (13-3) is in refrigeration case lid (5) is equipped with water pump (14-1) and valve (22-1).
There are two ports for temperature sensor (1) tool, and two ports are connected with control device (6)；Valve (22-1), valve
(22-2), valve (22-3) are respectively provided with two ports, and two ports are connected with control device (6)；Pressure regulator (21) has
Two ports, two ports are connected with control device (6).
A kind of semiconductor refrigerating hutch suitable for cold chain transportation provided by the utility model, it is characterised in that including with
The lower course of work：
After power supply (9) is powered, semiconductor chilling plate (11) is in running order, at this time the cold end of semiconductor chilling plate (11)
Cold is generated, hutch (3) internal fan (2-1) and fan (2-2) start, and promote hutch (3) inner air convection, and cold is equal
It is even to be transferred in hutch (3).The hot junction of semiconductor chilling plate (11) generates heat, and fan (2-3) starts, and promotes the outer air of case
It exchanges heat with radiating fin (8)；Valve (22-1), water pump (14-1) are closed, and valve (22-2) and valve (22-3) are opened, immersible pump
(14-2) starts, and ice water enters radiating fin (8) by water inlet pipe (13-1), and ice storage box is flowed back to by outlet pipe (13-2)
(19)。
After power supply (9) power-off, when semiconductor chilling plate (11) is in off working state, valve (22-2), valve are closed
(22-3) and immersible pump (14-2) opens valve (22-1), starts water pump (14-1), by the water inlet pipe (13- in horizontal segment
1), outlet pipe (13-2) and water pipe (13-3) internal water accumulation are pumped into water tank (16), and periodically water tank (16) internal water accumulation is discharged, can
It effectively prevent ponding to retain water inlet pipe (13-1), outlet pipe (13-2) and water pipe (13-3) intussusception endophytic bacteria.
Radiating fin (8) is serrated with conduction cooling fin (12), it is possible to increase heat exchange area enhances cooling piece refrigerating efficiency.
Water pipe is U-shaped in radiating fin (8), can increase water pipe area, and ice water is promoted fully to be changed with radiating fin (8)
Heat, can effectively will be in the heat transfer to ice water of hot junction.
Water tank (16) can take out out of refrigerated storage case, and case lid (23) and ice storage box (19) are separable, and ice cube is from case lid
(23) it is put into ice storage box (19).Ice storage box (19) surrounding has thermal insulation material (17), can effectively preserve the cold of ice cube, delay
The thawing time of ice cube.
Hutch (3) interior temperature is measured by temperature sensor (1), and power supply (9) passes through conducting wire and control device (6) phase
Even.When the interior temperature of hutch (3) increases, pressure regulator (21) is adjusted by control device (6), increases ammeter (20) indicating value；
When the interior temperature of hutch (3) reduces, pressure regulator (21) is adjusted by control device (6), reduces ammeter (20) indicating value, it can be real
Now to the control of hutch (3) interior temperature.
Hutch (3) and ice storage box (19) surrounding have thermal insulation material (17).Thermal insulation material (17) can be polyurethane or other
Thermal insulation material, tank material can be cold-rolled steel sheet.
Description of the drawings
Fig. 1 is the semiconductor refrigerating hutch integral planar schematic diagram suitable for cold chain transportation；
Label title in figure：1, temperature sensor, 2-1, fan, 2-2, fan, 2-3, fan, 3, hutch, 4, open
It closes, 5, refrigeration case lid, 6, control device, 7, grid, 8, radiating fin, 9, power supply, 10, thermal insulation layer, 11, semiconductor chilling plate,
12, conduction cooling fin, 13-1, water inlet pipe, 13-2, outlet pipe, 13-3, water pipe, 14-1, water pump, 14-2, immersible pump, 15, water tank carries
Hand, 16, water tank, 17, thermal insulation material, 18, water level line, 19, ice storage box, 22-1, valve, 22-2, valve, 22-3, valve, 23,
Case lid.
Fig. 2 is the refrigeration case lid floor map of the semiconductor refrigerating hutch suitable for cold chain transportation；
Label title in figure：2-3, fan, 4, switch, 6, control device, 8, radiating fin, 9, power supply, 13-1, water inlet
Pipe, 13-2, outlet pipe, 13-3, water pipe, 14-1, water pump, 16, water tank, 17, thermal insulation material, 19, ice storage box, 20, ammeter,
21, pressure regulator, 22-1, valve, 22-2, valve, 22-3, valve.
Fig. 3 is the refrigeration case cover housing floor map of the semiconductor refrigerating hutch suitable for cold chain transportation；
Label title in figure：7, grid, 17, thermal insulation material.
Fig. 4 be suitable for cold chain transportation the hot-side heat dissipation fin of semiconductor refrigerating hutch and the installation site of water pipe show
It is intended to；
Label title in figure：8, radiating fin, 13-1, water inlet pipe, 13-2, outlet pipe, 13-3, water pipe, 14-1, water
Pump, 22-1, valve, 22-2, valve, 22-3, valve.
Specified Fig. 1 is Figure of abstract.
Specific implementation mode
Fig. 1 is the semiconductor refrigerating hutch overall structure diagram suitable for cold chain transportation, the tool of the refrigerated storage case
Body embodiment is as follows；
When needing to store fresh meat, fruits and vegetables in refrigerated storage case 3,19 planted agent of ice storage box be first put into ice cube and
The water that 0 DEG C of part closes valve 22-1 and water pump 14-1, opens valve 22-2, valve 22-3 and immersible pump 14-2.Outside power supply 9
220V alternating currents are inputted, export direct current, fan 2-1, fan 2-2, fan 2-3 start to rotate, while semiconductor chilling plate 11
Cold end generates cold, and hot junction generates heat.The variation of 3 body temperature of hutch is observed by temperature sensor 1, adjusts pressure regulator
21, increase electric current, increases the refrigerating capacity of semiconductor chilling plate 11.When the numerical value that temperature sensor 1 is shown in hutch 3 meets storage
When depositing fresh meat, the temperature that fruits and vegetables needs, it is put into the fresh meat for needing to store, fruits and vegetables, is adjusted simultaneously
Pressure regulator 21 reduces electric current, and semiconductor chilling plate 11 is made to be in maximum refrigerating efficiency state.
When the numerical value that temperature sensor 1 is shown constantly rises, ice cube is needed replacing in ice storage box 19.Control device 6 will
Power supply 9 is closed, water tank 16 is taken out, case lid 23 is opened, water in ice storage box 19 is discharged, then be reentered into ice cube and 0 DEG C of water.
When refrigerated storage case maintenance shut-downs, valve 22-2, valve 22-3 and immersible pump 14-2 are closed, opens valve 22-1
With water pump 14-1, horizontal segment water inlet pipe 13-1, outlet pipe 13-2, water pipe 13-3 internal water accumulations will be in and be discharged into water tank 16, water tank
When 16 internal water accumulations are more, water tank 16 is taken out by water tank handle 15, water in water tank 16 is discharged.
When refrigerated storage case maintenance shut-downs, and ice cube all melts in ice storage box 19, and the temperature of water increases in ice storage box 19
When.Water tank 16 is taken out, case lid 23 is opened, water in ice storage box 19 is discharged.
Semiconductor refrigerating box provided by the utility model uses semiconductor chilling plate as low-temperature receiver, and hot junction is cold using ice water
But, refrigerating capacity is big, good refrigeration effect and can achieve the effect that deep cooling.The semiconductor refrigerating box can be applied to short distance logistics transportation.
It is particularly suitable for the fresh meat of storage, fruits and vegetables, also is adapted for storing the meat products taken out from freezer.
Claims (5)
1. a kind of semiconductor refrigerating hutch suitable for cold chain transportation, it is characterised in that including temperature sensor (1), fan
(2-1), fan (2-2), fan (2-3), hutch (3), switch (4), refrigeration case lid (5), control device (6), grid (7),
Radiating fin (8), thermal insulation layer (10), semiconductor chilling plate (11), conduction cooling fin (12), water inlet pipe (13-1), goes out power supply (9)
Water pipe (13-2), water pipe (13-3), water pump (14-1), immersible pump (14-2), water tank handle (15), water tank (16), thermal insulation material
(17), water level line (18), ice storage box (19), ammeter (20), pressure regulator (21), valve (22-1), valve (22-2), valve
(22-3), case lid (23)；
Refrigeration case lid (5) is wherein equipped at the top of hutch (3), hutch (3) left side is equipped with fan (2-1) and temperature sensor
(1), right edge is equipped with ice storage box (19), and ice storage box (19) upper end is equipped with water tank (16), and it is right that water tank (16) is located at refrigeration case lid (5)
Side；
Freeze and be equipped with 2 chip semiconductor cooling pieces (11) in case lid (5), cold end is towards on the inside of tank wall, and hot junction is towards on the outside of tank wall；
Semiconductor chilling plate (11) cold end is connected with one end of conduction cooling fin (12), and fan (2-2) is affixed on the another of conduction cooling fin (12)
End；Semiconductor chilling plate (11) hot junction is connected with one end of radiating fin (8), and fan (2-3) is affixed on the another of radiating fin (8)
End；Thermal insulation layer (10) is set to semiconductor chilling plate (11) surrounding and between conduction cooling fin (12) and radiating fin (8)；It dissipates
Hot fin (8) left side is equipped with switch (4) and control device (6)；Power supply (9) is equipped on the right of radiating fin (8)；Control device (6)
Ammeter (20) and pressure regulator (21) are equipped between power supply (9), ammeter (20) and power supply (9) are connected, pressure regulator (21) and
Power supply (9) is in parallel, and refrigeration case lid (5) top surface is grid (7)；
For radiating fin (8) there are one entrance and one outlet, entrance taps into water pipe (13-1), outlet connected water outlet pipe (13-2), storage
There are one entrance and one outlet, entrance connected water outlet pipe (13-2), outlets to tap into water pipe (13-1), water inlet pipe for refrigerator (19) body
The end (13-1) connects immersible pump (14-2), and ice storage box (19) interior water level is submerged in water inlet pipe (13-1) and the end outlet pipe (13-2)
Line (18) is hereinafter, the horizontal segment that water inlet pipe (13-1) is in refrigeration case lid (5) is equipped with valve (22-3), outlet pipe (13-2)
Horizontal segment in refrigeration case lid (5) is equipped with valve (22-2)；There are one water tank handles (15) and one to connect for water tank (16)
Mouthful, interface connects with the side of water pipe (13-3), and the other side of water pipe (13-3) connects with outlet pipe (13-2), water pipe (13-3)
Horizontal segment in refrigeration case lid (5) is equipped with water pump (14-1) and valve (22-1)；
There are two ports for temperature sensor (1) tool, and two ports are connected with control device (6)；Valve (22-1), valve (22-
2), valve (22-3) is respectively provided with two ports, and two ports are connected with control device (6)；There are two pressure regulator (21) tools
Port, two ports are connected with control device (6).
2. a kind of semiconductor refrigerating hutch suitable for cold chain transportation according to claim 1, it is characterised in that：
Radiating fin (8) is serrated with conduction cooling fin (12), it is possible to increase heat exchange area enhances cooling piece refrigerating efficiency.
3. a kind of semiconductor refrigerating hutch suitable for cold chain transportation according to claim 1, it is characterised in that：
Water pipe is U-shaped in radiating fin (8), can increase water pipe area, promotes ice water fully to exchange heat with radiating fin (8), energy
It effectively will be in the heat transfer to ice water of hot junction.
4. a kind of semiconductor refrigerating hutch suitable for cold chain transportation according to claim 1, it is characterised in that：
Water tank (16) can take out out of refrigerated storage case, and case lid (23) is separable with ice storage box (19), and ice cube is at case lid (23)
It is put into ice storage box (19), ice storage box (19) surrounding has thermal insulation material (17), can effectively preserve the cold of ice cube, postpone ice cube
Thawing time.
5. a kind of semiconductor refrigerating hutch suitable for cold chain transportation according to claim 1, it is characterised in that：Storage
It can be polyurethane or other thermal insulation materials, babinet that case (3) and ice storage box (19) surrounding, which have thermal insulation material (17), thermal insulation material (17),
Material can be cold-rolled steel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721288158.9U CN207635687U (en) | 2017-09-29 | 2017-09-29 | Semiconductor refrigeration hutch suitable for cold chain transportation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721288158.9U CN207635687U (en) | 2017-09-29 | 2017-09-29 | Semiconductor refrigeration hutch suitable for cold chain transportation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207635687U true CN207635687U (en) | 2018-07-20 |
Family
ID=62858753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721288158.9U Expired - Fee Related CN207635687U (en) | 2017-09-29 | 2017-09-29 | Semiconductor refrigeration hutch suitable for cold chain transportation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207635687U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621118A (en) * | 2017-09-29 | 2018-01-23 | 南京工业大学 | Semiconductor refrigeration hutch suitable for cold chain transportation |
| CN109405343A (en) * | 2018-10-19 | 2019-03-01 | 宁波工程学院 | A kind of refrigerator and phase-changing energy-storing hot water coupling system |
| CN111250226A (en) * | 2020-03-20 | 2020-06-09 | 长沙天创粉末技术有限公司 | Constant temperature type ball mill |
| CN112730277A (en) * | 2019-10-28 | 2021-04-30 | 佳能医疗系统株式会社 | Automatic analyzer and reagent library thereof |
| CN113385587A (en) * | 2021-08-17 | 2021-09-14 | 佛山市腾和机械制造有限公司 | Press machine |
| CN115476755A (en) * | 2021-05-31 | 2022-12-16 | 浙江雪波蓝科技有限公司 | Movable fresh-keeping box |
-
2017
- 2017-09-29 CN CN201721288158.9U patent/CN207635687U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621118A (en) * | 2017-09-29 | 2018-01-23 | 南京工业大学 | Semiconductor refrigeration hutch suitable for cold chain transportation |
| CN109405343A (en) * | 2018-10-19 | 2019-03-01 | 宁波工程学院 | A kind of refrigerator and phase-changing energy-storing hot water coupling system |
| CN109405343B (en) * | 2018-10-19 | 2024-07-02 | 宁波工程学院 | Refrigerator and phase-change energy-storage hot water coupling system |
| CN112730277A (en) * | 2019-10-28 | 2021-04-30 | 佳能医疗系统株式会社 | Automatic analyzer and reagent library thereof |
| CN111250226A (en) * | 2020-03-20 | 2020-06-09 | 长沙天创粉末技术有限公司 | Constant temperature type ball mill |
| CN115476755A (en) * | 2021-05-31 | 2022-12-16 | 浙江雪波蓝科技有限公司 | Movable fresh-keeping box |
| CN113385587A (en) * | 2021-08-17 | 2021-09-14 | 佛山市腾和机械制造有限公司 | Press machine |
| CN113385587B (en) * | 2021-08-17 | 2021-11-09 | 佛山市腾和机械制造有限公司 | Press machine |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180720 Termination date: 20200929 |