CN208567249U - A kind of household low temperature refrigerator - Google Patents
A kind of household low temperature refrigerator Download PDFInfo
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- CN208567249U CN208567249U CN201820914859.7U CN201820914859U CN208567249U CN 208567249 U CN208567249 U CN 208567249U CN 201820914859 U CN201820914859 U CN 201820914859U CN 208567249 U CN208567249 U CN 208567249U
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- heat exchange
- evaporator
- motherboard
- daughter board
- heat
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Abstract
A kind of household low temperature refrigerator, is related to domestic refrigerator, is equipped with cabinet, includes freezing chamber and refrigerating chamber in cabinet, is equipped with cryogenic freezing room；Refrigeration system is equipped in cabinet, refrigeration system includes compressor, condenser, throttling set, regenerator, cryogenic freezing room evaporator, freezer evaporator and refrigerator evaporator, the refrigerator evaporator is identical with the structure of freezer evaporator, it includes evaporation tube, exchange heat daughter board and heat exchange motherboard, the daughter board that exchanges heat is interior to be equipped with thermally conductive oil pocket, thermally conductive oil pocket is equipped with conduction oil inlet, the both ends of evaporation tube are connected with thermally conductive oil pocket respectively, controllable fitting or separate type are connect on front side of the trailing flank of heat exchange daughter board and heat exchange motherboard, the motherboard that exchanges heat is interior to be equipped with refrigerant chamber, refrigerant chamber is equipped with refrigerant inlet and refrigerant outlet.The advantages that the utility model has cryogenic freezing room, and long to effective period of food quality, structure is simple, and low in cost, pipeline is succinct, failure rate is low, high cooling efficiency, energy saving.
Description
Technical field
The present invention relates to domestic refrigerator field, elaborating is that one kind has cryogenic freezing room, long to effective period of food quality, and is tied
Structure is simple, low in cost, and pipeline is succinct, failure rate is low, high cooling efficiency, energy saving household low temperature refrigerator.
Background technique
It is known that refrigerator is to maintain a kind of refrigeration equipment of constant low temperature and one kind protects food or other articles
Hold the product for civilian use of constant low temperature cold.Domestic refrigerator is usually Two door refrigerator or three-door refrigerator, refrigerator inside be divided into two or
The locker room of three different temperatures, no matter Two door refrigerator, three-door refrigerator even more refrigerators, existing domestic refrigerator wraps
Refrigerating chamber of the temperature in subzero 15 degree or so of freezing chamber and a temperature at 6 degree or so is included, other locker rooms are temperature
Fresh-keeping or fruit vegetables storing room therebetween；The freezing chamber of this domestic refrigerator can not want tuna etc. to cryogenic temperature
Lower food or article is asked to carry out freezer storage, it is short to the shelf-life of ordinary food, it is not able to satisfy long-time freezen protective food
The demand of product.The refrigeration system of existing domestic refrigerator includes compressor, condenser, throttling set and evaporator, compressor
Refrigerant outlet is connected with condenser refrigerant inlet, and condenser refrigerant outlet is connected with throttling set entrance, throttling set
Outlet is connected with evaporator refrigerant entrance, and evaporator refrigerant outlet is connected with compressor refrigerant entrance, forms refrigeration and follows
Ring；Evaporator is divided into multiple evaporators such as refrigerating evaporator, refrigeration evaporator according to the locker room of refrigerator inside, each in order to guarantee
Locker room works normally, and the refrigerant line connection relationship between multiple evaporators is complicated, manufacturing cost is high, high failure rate, system
Whole refrigerating efficiency is low, waste of energy.
Summary of the invention
Present invention aim to address above-mentioned the deficiencies in the prior art, provide it is a kind of there is cryogenic freezing room, can be to wanting
The lower food of temperature, article is asked to carry out freezer storage, the long household low temperature refrigerator of shelf-life durations.
It is a further object of the present invention to provide a kind of structure is simple, low in cost, pipeline is succinct, failure rate is low, refrigeration effect
Rate is high, energy saving household low temperature refrigerator.
The present invention solves technical solution used by above-mentioned the deficiencies in the prior art:
A kind of household low temperature refrigerator is equipped with cabinet, includes freezing chamber and refrigerating chamber in cabinet, it is characterised in that the case
It is equipped with cryogenic freezing room in vivo；Refrigeration system is equipped in cabinet, refrigeration system includes compressor, condenser, throttling set, backheat
Device, cryogenic freezing room evaporator, freezer evaporator and refrigerator evaporator, the refrigerant outlet and condenser of compressor freeze
Agent entrance be connected, condenser refrigerant outlet is connected with the entrance of regenerator first runner, the outlet of regenerator first runner and
The entrance of throttling set (throttle valve or capillary) is connected, throttling set outlet and cryogenic freezing room evaporator refrigerant entrance phase
Even, cryogenic freezing room evaporator refrigerant outlet is connected with freezer evaporator refrigerant inlet, freezer evaporator refrigerant
Outlet is connected with refrigerator evaporator refrigerant inlet, the entrance of refrigerator evaporator refrigerant outlet and regenerator second flow channel
It is connected, the outlet of regenerator second flow channel is connected with compressor refrigerant entrance, forms refrigeration cycle；The refrigerating chamber evaporation
Device is identical with the structure of freezer evaporator comprising evaporation tube, heat exchange daughter board and heat exchange motherboard, heat exchange daughter board are interior equipped with thermally conductive
Oil pocket, thermally conductive oil pocket are equipped with conduction oil inlet, (conduction oil inlet be equipped with sealing cover), the both ends of evaporation tube respectively with
Thermally conductive oil pocket is connected, and the trailing flank for the daughter board that exchanges heat is connect with controllable fitting on front side of heat exchange motherboard or separate type, sets in the motherboard that exchanges heat
There is refrigerant chamber, refrigerant chamber is equipped with refrigerant inlet and refrigerant outlet.
Heretofore described regenerator is after two heat exchanger tubes fit closely, to recline be coiled to form in the shape of a spiral.Two
Substitution pipe forms first runner and second flow channel.Before the refrigerant vapour come out from refrigerator evaporator is to throttling set is entered
High-pressure refrigerant is cooled down.Refrigerant selects low-temperature refrigerant, such as R23 refrigerant.
The knot that the trailing flank of heretofore described heat exchange daughter board is connect with controllable fitting on front side of heat exchange motherboard or separate type
Structure are as follows: the leading flank for the motherboard that exchanges heat is equipped with sliding pin, and heat exchange daughter board is equipped with the connection slide opening matched with sliding pin, heat exchange
Daughter board is through on connection slide opening and the sliding pin front side capable of sliding back and forth for being mounted on heat exchange motherboard；Exchange heat on daughter board and exchange heat motherboard
On be respectively equipped with mutually matched preceding electromagnet and rear electromagnet, preceding electromagnet and rear electromagnet are respectively through inverter and electricity
Source is connected.
It is controllably bonded on front side of the trailing flank of heat exchange daughter board described in invention and heat exchange motherboard or separate type connects
The structure connect are as follows: the leading flank for the motherboard that exchanges heat is equipped with sliding pin, and it is sliding that heat exchange daughter board is equipped with the connection matched with sliding pin
Hole, heat exchange daughter board is through on connection slide opening and the sliding pin front side capable of sliding back and forth for being mounted on heat exchange motherboard；Exchange heat daughter board on or
The motherboard that exchanges heat is equipped with electromagnet, exchanges heat on motherboard or heat exchange daughter board is equipped with the suction made of magnetic material with electromagnet cooperation
Block is closed, is equipped between heat exchange daughter board and heat exchange motherboard and separates pressure spring.The daughter board rear side that exchanges heat is upper or heat exchange motherboard front side is equipped with pressure spring
Mounting groove, separation pressure spring are located in pressure spring mounting groove, and separation pressure spring can be pressed in people's pressure spring mounting groove completely, so that heat exchange daughter board
Trailing flank is sufficiently bonded with heat exchange motherboard leading flank.
On a heat sink, finned evaporator is made in heretofore described evaporation tube coiling, and the one of finned evaporator
Side is bonded with the leading flank of heat exchange daughter board.Enhance thermal conduction effect.
The present invention is further improved, and the trailing flank of the heat exchange daughter board is equipped with heat exchange inserting column, the front side for the motherboard that exchanges heat
Face is equipped with the heat exchange jack matched with heat exchange inserting column.When the daughter board that exchanges heat is bonded with heat exchange mother matrix, heat exchange inserting column insertion is changed
In hot jack, increase contact area, heat exchange efficiency is higher, when the inserting column that exchanges heat between daughter board and heat exchange mother matrix and exchange heat is slotting with heat exchange
It is located at thermally conductive lubricating oil between hole, further increases heat exchange efficiency.
The heat exchanging chamber being connected with thermally conductive oil pocket is equipped in heretofore described heat exchange inserting column, heat exchange jack protrudes into backward to be changed
In the refrigerant chamber of hot motherboard.Further increase heat exchange efficiency.
Heretofore described cryogenic freezing room evaporator is finned evaporator.
Evaporator installation room is respectively equipped in the cryogenic freezing room of heretofore described cabinet, freezing chamber and refrigerating chamber, it is low
Warm freezer evaporator, freezer evaporator and refrigerator evaporator are separately mounted to cryogenic freezing room, freezing chamber and refrigerating chamber
Evaporator install it is indoor, cryogenic freezing room, freezing chamber and refrigerating chamber and the installation of respective evaporator it is indoor between be equipped with cold air outlet,
Cold air outlet is equipped with blower.
When the invention works, the temperature of cryogenic freezing room can be very good freezer storage temperature and want between -40 °--50 °
Lower food or article are asked, the shelf-life of ordinary food is greatly prolonged.By controlling the polarity of electromagnet or the on-off of electric current
Realize the refrigeration control between cryogenic freezing room and freezing chamber, refrigeration system has structure simple, low in cost, pipeline is succinct,
The advantages that failure rate is low, high cooling efficiency, energy saving.Further heat exchange motherboard, heat exchange daughter board and conduction oil have very strong
Cold-storage ability, can slow down the temperature changing speed of freezing chamber and refrigerating chamber significantly, reduce high frequent starting, temperature control
More precisely, energy-saving effect is more preferably.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of box house in the present invention.
Fig. 2 is the structural schematic diagram of refrigeration system in the present invention.
Fig. 3 is the structural schematic diagram of cryogenic freezing room evaporator and freezer evaporator in the present invention.
Fig. 4 is the decomposition texture schematic diagram of Fig. 3.
Fig. 5 is the schematic diagram of the section structure of heat exchange motherboard in the present invention.
Fig. 6 is the schematic perspective view in the present invention on rear side of heat exchange daughter board.
Specific embodiment
A kind of household low temperature refrigerator as shown in figures 1 to 6 is equipped with cabinet, and cabinet is interior including freezing chamber 3 and refrigerating chamber 2, originally
Invention it is characterized in that cabinet in be equipped with cryogenic freezing room 4；Be equipped with refrigeration system in cabinet, refrigeration system include compressor 9,
Condenser 10, throttling set, regenerator 8, cryogenic freezing room evaporator 7, freezer evaporator 6 and refrigerator evaporator 5, compression
The refrigerant outlet of machine 9 is connected with 10 refrigerant inlet of condenser, 10 refrigerant outlet of condenser and 8 first runner of regenerator
Entrance is connected, and the outlet of 8 first runner of regenerator is connected with the entrance of throttling set, from figure 2 it can be seen that in the present embodiment
Throttling set uses capillary 11, also can according to need selection throttle valve.It is steamed with cryogenic freezing room throttling set outlet
7 refrigerant inlet of device to be sent out to be connected, 7 refrigerant outlet of cryogenic freezing room evaporator is connected with 6 refrigerant inlet of freezer evaporator,
6 refrigerant outlet of freezer evaporator is connected with 5 refrigerant inlet of refrigerator evaporator, 5 refrigerant outlet of refrigerator evaporator
It is connected with the entrance of 8 second flow channel of regenerator, the outlet of 8 second flow channel of regenerator is connected with 9 refrigerant inlet of compressor, is formed
Refrigeration cycle；The regenerator is after two heat exchanger tubes fit closely, to recline be coiled to form in the shape of a spiral.Two substitutions are tubular
At first runner and second flow channel.The refrigerant vapour come out from refrigerator evaporator is to the high-pressure refrigeration before entering throttling set
Agent is cooled down.Refrigerant selects low-temperature refrigerant, such as R23 refrigerant.The refrigerator evaporator 5 and freezing chamber evaporator
The structure of device 6 is identical comprising and evaporation tube 16, heat exchange daughter board 15 and heat exchange motherboard 13, heat exchange daughter board 15 is interior to be equipped with thermally conductive oil pocket,
Thermally conductive oil pocket is equipped with conduction oil inlet 22, and conduction oil inlet 22 is equipped with sealing cover 21, and the both ends of evaporation tube 16 are distinguished
It is connected with thermally conductive oil pocket, from fig. 6 it can be seen that being respectively arranged on the left side and the right side for heat exchange daughter board lower part is connected to thermally conductive oil pocket
Installing port, the both ends of evaporation tube 16 are connected with two installing ports respectively.13 front side of trailing flank and heat exchange motherboard of heat exchange daughter board 15
Controllable fitting or separate type connection, heat exchange motherboard is interior to be equipped with refrigerant chamber 20, and refrigerant chamber 20 is equipped with 12 He of refrigerant inlet
Refrigerant outlet.The structure that the trailing flank of the heat exchange daughter board is connect with controllable fitting on front side of heat exchange motherboard or separate type are as follows:
The leading flank of heat exchange motherboard 13 is equipped with sliding pin 17, and heat exchange daughter board 15 is equipped with the connection slide opening matched with sliding pin 17,
Heat exchange daughter board 15 is through on connection slide opening and sliding pin 17 front side capable of sliding back and forth for being mounted on heat exchange motherboard 13, exchange heat daughter board 15
17 front end of sliding pin of front side is equipped with baffle ring or gear cap, prevents heat exchange daughter board from deviating from sliding pin front end；Front side on heat exchange daughter board
Equipped with electromagnet 18, place opposite with electromagnet is equipped with the actuation block made of magnetic material with electromagnet cooperation on the motherboard that exchanges heat
26, it is equipped between heat exchange daughter board and heat exchange motherboard and separates pressure spring 25.The daughter board rear side that exchanges heat is equipped with pressure spring mounting groove, separates pressure spring 25
It is located in pressure spring mounting groove, separation pressure spring 25 can be pressed in people's pressure spring mounting groove completely, so that heat exchange daughter board trailing flank and heat exchange
Motherboard leading flank is sufficiently bonded.It can be seen from the figure that heat exchange motherboard and heat exchange daughter board four corners are respectively equipped with engaging lug, exchange heat
Four engaging lugs of motherboard are equipped with connecting hole, and the connection slide opening 23 on daughter board that exchanges heat is located at the engaging lug of heat exchange daughter board four corners
On, sliding pin 17 is fixedly connected after connection slide opening 23 with the connecting hole on heat exchange four engaging lugs of motherboard；Pressure spring installation
Slot is located on four engaging lugs of heat exchange daughter board, and sliding pin passes through separation pressure spring, plays the role of positioning and guiding.Exchange heat daughter board two sides
On be respectively equipped with attachment base, be respectively equipped with electromagnet 18 on two attachment bases, heat exchange motherboard two sides are equipped with and electromagnet 18 cooperates
Actuation block 26.Or the structure that the trailing flank of the heat exchange daughter board is connect with controllable fitting on front side of heat exchange motherboard or separate type
Are as follows: the leading flank for the motherboard that exchanges heat is equipped with sliding pin, and heat exchange daughter board is equipped with the connection slide opening matched with sliding pin, heat exchange
Plate is connected on slide opening and the sliding pin front side capable of sliding back and forth for being mounted on heat exchange motherboard, before the sliding pin on front side of the daughter board that exchanges heat
End is equipped with gear cap, prevents heat exchange daughter board from deviating from sliding pin rear end；Front side and rear side place relatively on heat exchange motherboard on heat exchange daughter board
It is respectively equipped with mutually matched preceding electromagnet and rear electromagnet, preceding electromagnet and rear electromagnet are respectively through inverter and power supply
It is connected, inverter can realize the conversion of electric current positive and negative anodes with a double-point double-throw switch.
The present invention is further improved, and on a heat sink, finned evaporator, finned steaming is made in the evaporation tube coiling
The side for sending out device is bonded with the leading flank of heat exchange daughter board；Enhance thermal conduction effect.
The present invention is further improved, and the trailing flank of the heat exchange daughter board is equipped with heat exchange inserting column 24, before the motherboard that exchanges heat
Side is equipped with the heat exchange jack 19 matched with heat exchange inserting column.When the daughter board that exchanges heat is bonded with heat exchange mother matrix, exchange heat inserting column 24
It is inserted into heat exchange jack 19, increases contact area, heat exchange efficiency is higher, when the inserting column that exchanges heat between daughter board and heat exchange mother matrix and exchange heat
It is located at thermally conductive lubricating oil between heat exchange jack, further increases heat exchange efficiency.It is equipped in the heat exchange inserting column 24 and conduction oil
The connected heat exchanging chamber of chamber, heat exchange jack 19 are protruded into backward in the refrigerant chamber 20 of heat exchange motherboard.Further increase heat exchange efficiency.Institute
The cryogenic freezing room evaporator stated is finned evaporator.Cryogenic freezing room, freezing chamber and the refrigerating chamber of the cabinet are interior respectively
Room is installed equipped with evaporator, cryogenic freezing room evaporator, freezer evaporator and refrigerator evaporator are separately mounted to low temperature cold
The evaporator for freezing room, freezing chamber and refrigerating chamber installs indoor, cryogenic freezing room, freezing chamber and refrigerating chamber and respective evaporator peace
Cold air outlet 1 is equipped between dress is indoor, cold air outlet 1 is equipped with blower.
When the invention works, the temperature of cryogenic freezing room can be very good freezer storage temperature and want between -40 ° to -50 °
Lower food or article are asked, the shelf-life of ordinary food is greatly prolonged.By controlling the polarity of electromagnet or the on-off of electric current
Realize the refrigeration control between cryogenic freezing room and freezing chamber, refrigeration system has structure simple, low in cost, pipeline is succinct,
The advantages that failure rate is low, high cooling efficiency, energy saving.The working condition of freezer evaporator and refrigerator evaporator at any time may be used
Control, temperature control precision is higher, and the lower cryogenic freezing room temperature the better within the specified scope.Further heat exchange motherboard, heat exchange
Daughter board and conduction oil have very strong cold-storage ability, can slow down the temperature changing speed of freezing chamber and refrigerating chamber significantly, reduce pressure
Contracting machine frequent starting, temperature control is more accurate, and energy-saving effect is more preferably.
Claims (6)
- It include freezing chamber and refrigerating chamber in cabinet, it is characterised in that the cabinet 1. a kind of household low temperature refrigerator is equipped with cabinet It is interior to be equipped with cryogenic freezing room；Refrigeration system is equipped in cabinet, refrigeration system includes compressor, condenser, throttling set, backheat Device, cryogenic freezing room evaporator, freezer evaporator and refrigerator evaporator, the refrigerant outlet and condenser of compressor freeze Agent entrance be connected, condenser refrigerant outlet is connected with the entrance of regenerator first runner, the outlet of regenerator first runner and The entrance of throttling set is connected, and throttling set outlet is connected with cryogenic freezing room evaporator refrigerant entrance, and cryogenic freezing room is steamed Hair device refrigerant outlet is connected with freezer evaporator refrigerant inlet, and freezer evaporator refrigerant outlet and refrigerating chamber evaporate Device refrigerant inlet is connected, and refrigerator evaporator refrigerant outlet is connected with the entrance of regenerator second flow channel, regenerator second The outlet of runner is connected with compressor refrigerant entrance, forms refrigeration cycle；The refrigerator evaporator and freezing chamber evaporator The structure of device is identical comprising evaporation tube, heat exchange daughter board and heat exchange motherboard, heat exchange daughter board is interior to be equipped with thermally conductive oil pocket, thermally conductive oil pocket It is equipped with conduction oil inlet, the both ends of evaporation tube are connected with thermally conductive oil pocket respectively, the trailing flank for the daughter board that exchanges heat and heat exchange motherboard Front side is controllably bonded or separate type connection, is equipped with refrigerant chamber in heat exchange motherboard, refrigerant chamber is equipped with refrigerant inlet and system Cryogen outlet.
- 2. household low temperature refrigerator according to claim 1, it is characterised in that the regenerator is that two heat exchanger tubes are close After fitting, reclines be coiled to form in the shape of a spiral.
- 3. household low temperature refrigerator according to claim 1, it is characterised in that the trailing flank of the heat exchange daughter board and heat exchange The structure of controllable fitting or separate type connection on front side of motherboard are as follows: the leading flank for the motherboard that exchanges heat is equipped with sliding pin, exchanges heat on daughter board Equipped with the connection slide opening matched with sliding pin, exchanging heat, daughter board is through connection slide opening and sliding pin is capable of sliding back and forth is mounted on heat exchange On the front side of motherboard；Mutually matched preceding electromagnet and rear electromagnet, preceding electricity are respectively equipped on heat exchange daughter board and on heat exchange motherboard Magnet and rear electromagnet are connected through inverter with power supply respectively.
- 4. household low temperature refrigerator according to claim 1, it is characterised in that the trailing flank of the heat exchange daughter board and heat exchange The structure of controllable fitting or separate type connection on front side of motherboard are as follows: the leading flank for the motherboard that exchanges heat is equipped with sliding pin, exchanges heat on daughter board Equipped with the connection slide opening matched with sliding pin, exchanging heat, daughter board is through connection slide opening and sliding pin is capable of sliding back and forth is mounted on heat exchange On the front side of motherboard；It exchanges heat on daughter board or heat exchange motherboard is equipped with electromagnet, exchange heat on motherboard or heat exchange daughter board is equipped with magnetism With the actuation block of electromagnet cooperation made of material, it is equipped between heat exchange daughter board and heat exchange motherboard and separates pressure spring.
- 5. household low temperature refrigerator according to claim 1, it is characterised in that the evaporation tube coiling on a heat sink, is made At finned evaporator, the side of finned evaporator is bonded with the leading flank of heat exchange daughter board.
- 6. household low temperature refrigerator according to claim 1, it is characterised in that the cryogenic freezing room of the cabinet, freezing chamber and Evaporator installation room, cryogenic freezing room evaporator, freezer evaporator and refrigerator evaporator difference are respectively equipped in refrigerating chamber The evaporator installation for being mounted on cryogenic freezing room, freezing chamber and refrigerating chamber is indoor, cryogenic freezing room, freezing chamber and refrigerating chamber and each From evaporator installation it is indoor between be equipped with cold air outlet, cold air outlet is equipped with blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820914859.7U CN208567249U (en) | 2018-06-13 | 2018-06-13 | A kind of household low temperature refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820914859.7U CN208567249U (en) | 2018-06-13 | 2018-06-13 | A kind of household low temperature refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208567249U true CN208567249U (en) | 2019-03-01 |
Family
ID=65486658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820914859.7U Active CN208567249U (en) | 2018-06-13 | 2018-06-13 | A kind of household low temperature refrigerator |
Country Status (1)
| Country | Link |
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| CN (1) | CN208567249U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662831A (en) * | 2018-06-13 | 2018-10-16 | 威海安泰电子制冷设备有限公司 | A kind of household low temperature refrigerator |
| CN113197397A (en) * | 2021-04-19 | 2021-08-03 | 泉州斯诺特机械设备有限公司 | Heat exchange device of shoe machine refrigeration equipment |
-
2018
- 2018-06-13 CN CN201820914859.7U patent/CN208567249U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662831A (en) * | 2018-06-13 | 2018-10-16 | 威海安泰电子制冷设备有限公司 | A kind of household low temperature refrigerator |
| CN108662831B (en) * | 2018-06-13 | 2024-05-17 | 威海安泰电子制冷设备有限公司 | Domestic low-temperature refrigerator |
| CN113197397A (en) * | 2021-04-19 | 2021-08-03 | 泉州斯诺特机械设备有限公司 | Heat exchange device of shoe machine refrigeration equipment |
| CN113197397B (en) * | 2021-04-19 | 2022-07-19 | 泉州斯诺特机械设备有限公司 | Heat exchange device of shoe machine refrigeration equipment |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of utility model: Household low temperature refrigerator Effective date of registration: 20210716 Granted publication date: 20190301 Pledgee: Weihai City Commercial Bank Limited by Share Ltd. high tech branch Pledgor: WEIHAI ANTAI ELECTRONIC REFRIGERATING EQUIPMENT Co.,Ltd. Registration number: Y2021980006221 |