CN108662831B - Domestic low-temperature refrigerator - Google Patents
Domestic low-temperature refrigerator Download PDFInfo
- Publication number
- CN108662831B CN108662831B CN201810608477.6A CN201810608477A CN108662831B CN 108662831 B CN108662831 B CN 108662831B CN 201810608477 A CN201810608477 A CN 201810608477A CN 108662831 B CN108662831 B CN 108662831B
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- Prior art keywords
- heat exchange
- freezing chamber
- evaporator
- low
- heat
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- 238000007710 freezing Methods 0.000 claims abstract description 79
- 230000008014 freezing Effects 0.000 claims abstract description 79
- 239000003507 refrigerant Substances 0.000 claims abstract description 65
- 238000001704 evaporation Methods 0.000 claims abstract description 12
- 238000002347 injection Methods 0.000 claims abstract description 6
- 239000007924 injection Substances 0.000 claims abstract description 6
- 238000000926 separation method Methods 0.000 claims description 8
- 239000000696 magnetic material Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 3
- 238000004804 winding Methods 0.000 claims 1
- 235000013305 food Nutrition 0.000 abstract description 11
- 238000005057 refrigeration Methods 0.000 abstract description 11
- 238000004134 energy conservation Methods 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
- F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/006—General constructional features for mounting refrigerating machinery components
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
A household low-temperature refrigerator relates to a household refrigerator, which is provided with a refrigerator body, wherein the refrigerator body comprises a freezing chamber and a refrigerating chamber, and is provided with a low-temperature freezing chamber; the refrigerator comprises a refrigerator body, and is characterized in that a refrigerating system is arranged in the refrigerator body and comprises a compressor, a condenser, a throttling device, a heat regenerator, a low-temperature freezing chamber evaporator, a freezing chamber evaporator and a refrigerating chamber evaporator, wherein the refrigerating chamber evaporator and the freezing chamber evaporator are identical in structure, the refrigerating chamber evaporator and the freezing chamber evaporator comprise an evaporating pipe, a heat exchange subplate and a heat exchange mother plate, a heat conducting oil cavity is arranged in the heat exchange subplate, a heat conducting oil injection port is arranged on the heat conducting oil cavity, two ends of the evaporating pipe are respectively connected with the heat conducting oil cavity, the rear side surface of the heat exchange subplate is connected with the front side of the heat exchange mother plate in a controllable attaching or separating mode, a refrigerant cavity is arranged in the heat exchange mother plate, and a refrigerant inlet and a refrigerant outlet are arranged on the refrigerant cavity. The invention has the advantages of long shelf life of food, simple structure, low cost, simple pipeline, low failure rate, high refrigeration efficiency, energy conservation and the like.
Description
Technical Field
The invention relates to the field of household refrigerators, in particular to a household low-temperature refrigerator with a low-temperature freezing chamber, long shelf life for foods, simple structure, low cost, simple pipelines, low failure rate, high refrigeration efficiency and energy conservation.
Background
Refrigerators are known as a refrigerating apparatus for maintaining a constant low temperature, and as a civil product for maintaining foods or other objects in a constant low temperature cold state. The domestic refrigerator is usually a two-door refrigerator or a three-door refrigerator, the interior of the refrigerator is divided into two or three storage chambers with different temperatures, no matter the two-door refrigerator, the three-door refrigerator or even more refrigerators, the existing domestic refrigerator comprises a freezing chamber with the temperature of about 15 ℃ below zero and a refrigerating chamber with the temperature of about 6 ℃, and other storage chambers are fresh-keeping or fruit and vegetable storage chambers with the temperature between the two; the freezing chamber of the household refrigerator can not freeze and store foods or articles with low requirements on freezing temperature, such as tuna, and the like, has short shelf life for common foods, and can not meet the requirement of long-time freezing preservation of foods. The existing refrigerating system of the household refrigerator comprises a compressor, a condenser, a throttling device and an evaporator, wherein a refrigerant outlet of the compressor is connected with a refrigerant inlet of the condenser, a refrigerant outlet of the condenser is connected with an inlet of the throttling device, an outlet of the throttling device is connected with a refrigerant inlet of the evaporator, and a refrigerant outlet of the evaporator is connected with the refrigerant inlet of the compressor to form a refrigerating cycle; the evaporator is divided into a plurality of evaporators such as a freezing evaporator and a refrigerating evaporator according to the storage chambers in the refrigerator, and in order to ensure that each storage chamber works normally, the connection relation of refrigerant pipelines among the plurality of evaporators is complex, the manufacturing cost is high, the failure rate is high, the whole refrigerating efficiency of the system is low, and the energy is wasted.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provide the household low-temperature refrigerator with the low-temperature freezing chamber, which can be used for freezing and storing foods and articles with low required temperature and has long shelf life.
The invention also aims to provide the household low-temperature refrigerator which has the advantages of simple structure, low cost, simple pipeline, low failure rate, high refrigeration efficiency and energy conservation.
The invention solves the defects of the prior art, adopts the following technical proposal:
the domestic low-temperature refrigerator is provided with a refrigerator body, wherein the refrigerator body comprises a freezing chamber and a refrigerating chamber, and is characterized in that the refrigerator body is internally provided with a low-temperature freezing chamber; the refrigerating system comprises a compressor, a condenser, a throttling device, a heat regenerator, a low-temperature freezing chamber evaporator, a freezing chamber evaporator and a refrigerating chamber evaporator, wherein a refrigerant outlet of the compressor is connected with a refrigerant inlet of the condenser, a refrigerant outlet of the condenser is connected with an inlet of a first runner of the heat regenerator, an outlet of the first runner of the heat regenerator is connected with an inlet of the throttling device (a throttle valve or a capillary tube), an outlet of the throttling device is connected with a refrigerant inlet of the low-temperature freezing chamber evaporator, a refrigerant outlet of the low-temperature freezing chamber evaporator is connected with a refrigerant inlet of the freezing chamber evaporator, a refrigerant outlet of the freezing chamber evaporator is connected with a refrigerant inlet of the refrigerating chamber evaporator, a refrigerant outlet of the refrigerating chamber evaporator is connected with an inlet of a second runner of the heat regenerator, and an outlet of the second runner of the heat regenerator is connected with the refrigerant inlet of the compressor to form a refrigerating cycle; the refrigerating chamber evaporator and the freezing chamber evaporator have the same structure, and comprise an evaporating pipe, a heat exchange daughter board and a heat exchange mother board, wherein a heat conduction oil cavity is arranged in the heat exchange daughter board, a heat conduction oil injection port is arranged on the heat conduction oil cavity, (a sealing cover is arranged on the heat conduction oil injection port), two ends of the evaporating pipe are respectively connected with the heat conduction oil cavity, the rear side surface of the heat exchange daughter board is controllably attached to or separated from the front side of the heat exchange mother board, a refrigerant cavity is arranged in the heat exchange mother board, and a refrigerant inlet and a refrigerant outlet are arranged on the refrigerant cavity.
The heat regenerator is formed by tightly attaching two heat exchange tubes and then spirally attaching and coiling the two heat exchange tubes. The two person changing pipes form a first flow passage and a second flow passage. The refrigerant vapor exiting the refrigerating compartment evaporator cools the high pressure refrigerant prior to entering the restriction. The refrigerant is low temperature refrigerant such as R23 refrigerant.
The structure for controllably attaching or separating the rear side surface of the heat exchange daughter board and the front side of the heat exchange mother board is as follows: the front side of the heat exchange mother board is provided with a sliding pin, the heat exchange daughter board is provided with a connecting sliding hole matched with the sliding pin, and the heat exchange daughter board can be arranged on the front side of the heat exchange mother board in a front-back sliding way through the connecting sliding hole and the sliding pin; the heat exchange daughter board and the heat exchange mother board are respectively provided with a front electromagnet and a rear electromagnet which are matched with each other, and the front electromagnet and the rear electromagnet are respectively connected with a power supply through a current reverser.
The structure for controllably attaching or separating the rear side surface of the heat exchange daughter board and the front side of the heat exchange mother board is as follows: the front side of the heat exchange mother board is provided with a sliding pin, the heat exchange daughter board is provided with a connecting sliding hole matched with the sliding pin, and the heat exchange daughter board can be arranged on the front side of the heat exchange mother board in a front-back sliding way through the connecting sliding hole and the sliding pin; an electromagnet is arranged on the heat exchange daughter board or the heat exchange mother board, an attraction block which is made of magnetic materials and matched with the electromagnet is arranged on the heat exchange mother board or the heat exchange daughter board, and a separation pressure spring is arranged between the heat exchange daughter board and the heat exchange mother board. The back side of the heat exchange sub-board or the front side of the heat exchange mother board is provided with a pressure spring mounting groove, the separation pressure spring is arranged in the pressure spring mounting groove, and the separation pressure spring can be completely pressed into the pressure spring mounting groove, so that the back side of the heat exchange sub-board is fully attached to the front side of the heat exchange mother board.
The evaporating pipe is coiled on the radiating fins to form the fin type evaporator, and one side of the fin type evaporator is attached to the front side face of the heat exchange sub-plate. Enhancing the heat conduction effect.
According to the invention, the heat exchange plug is arranged on the rear side surface of the heat exchange daughter board, and the heat exchange jack matched with the heat exchange plug is arranged on the front side surface of the heat exchange mother board. When heat exchange daughter board and heat exchange mother board subsides, in the heat exchange jack was inserted to the heat exchange inserted post, increase area of contact, heat exchange efficiency is higher, establishes at heat conduction lubricating oil between heat exchange daughter board and heat exchange mother board and between heat exchange inserted post and the heat exchange jack, further improves heat exchange efficiency.
The heat exchange plug column is internally provided with a heat exchange cavity connected with the heat conduction oil cavity, and the heat exchange jack is backwards protruded into a refrigerant cavity of the heat exchange mother board. Further improving the heat exchange efficiency.
The low-temperature freezing chamber evaporator is a fin type evaporator.
The low-temperature freezing chamber, the freezing chamber and the refrigerating chamber of the box body are respectively provided with an evaporator mounting chamber, the low-temperature freezing chamber evaporator, the freezing chamber evaporator and the refrigerating chamber evaporator are respectively arranged in the evaporator mounting chambers of the low-temperature freezing chamber, the freezing chamber and the refrigerating chamber, cold air inlets are arranged between the low-temperature freezing chamber, the freezing chamber and the refrigerating chamber and the respective evaporator mounting chambers, and the cold air inlets are provided with fans.
When the invention works, the temperature of the low-temperature freezing chamber is between-40 degrees and-50 degrees, so that food or articles with low temperature requirements can be well frozen and stored, and the shelf life of common food is greatly prolonged. The refrigeration control between the low-temperature freezing chamber and the freezing chamber is realized by controlling the polarity of the electromagnet or the on-off of the current, and the refrigeration system has the advantages of simple structure, low cost, simple pipeline, low failure rate, high refrigeration efficiency, energy conservation and the like. Further heat transfer mother board, heat exchange daughter board and conduction oil have very strong cold-storage capacity, can slow down freezing chamber and cold-stored room's temperature change speed greatly, reduce the frequent start of compressor, and temperature control is more accurate, and energy-conserving effect is better.
Drawings
Fig. 1 is a schematic view of the structure of the inside of the case of the present invention.
Fig. 2 is a schematic diagram of a refrigeration system according to the present invention.
Fig. 3 is a schematic view showing the structure of the low temperature freezing chamber evaporator and the freezing chamber evaporator according to the present invention.
Fig. 4 is an exploded view of fig. 3.
Fig. 5 is a schematic cross-sectional view of a heat exchange mother plate according to the present invention.
Fig. 6 is a schematic perspective view of the rear side of the heat exchanger sub-plate according to the present invention.
Detailed Description
A domestic low-temperature refrigerator as shown in figures 1-6 is provided with a box body, wherein the box body comprises a freezing chamber 3 and a refrigerating chamber 2, and the domestic low-temperature refrigerator is characterized in that a low-temperature freezing chamber 4 is arranged in the box body; the refrigerator is provided with a refrigerating system in the box, the refrigerating system comprises a compressor 9, a condenser 10, a throttling device, a heat regenerator 8, a low-temperature freezing chamber evaporator 7, a freezing chamber evaporator 6 and a refrigerating chamber evaporator 5, a refrigerant outlet of the compressor 9 is connected with a refrigerant inlet of the condenser 10, a refrigerant outlet of the condenser 10 is connected with an inlet of a first runner of the heat regenerator 8, an outlet of the first runner of the heat regenerator 8 is connected with an inlet of the throttling device, and as can be seen from fig. 2, the throttling device in the embodiment uses a capillary tube 11, and a throttling valve can be selected as required. The outlet of the throttling device is connected with the refrigerant inlet of the low-temperature freezing chamber evaporator 7, the refrigerant outlet of the low-temperature freezing chamber evaporator 7 is connected with the refrigerant inlet of the freezing chamber evaporator 6, the refrigerant outlet of the freezing chamber evaporator 6 is connected with the refrigerant inlet of the refrigerating chamber evaporator 5, the refrigerant outlet of the refrigerating chamber evaporator 5 is connected with the inlet of the second flow passage of the heat regenerator 8, and the outlet of the second flow passage of the heat regenerator 8 is connected with the refrigerant inlet of the compressor 9 to form a refrigeration cycle; the heat regenerator is formed by spirally and closely coiling two heat exchange tubes after the two heat exchange tubes are closely attached. The two person changing pipes form a first flow passage and a second flow passage. The refrigerant vapor exiting the refrigerating compartment evaporator cools the high pressure refrigerant prior to entering the restriction. The refrigerant is low temperature refrigerant such as R23 refrigerant. The refrigerating chamber evaporator 5 and the freezing chamber evaporator 6 have the same structure, and comprise an evaporating pipe 16, a heat exchange sub-board 15 and a heat exchange mother board 13, wherein a heat conducting oil cavity is arranged in the heat exchange sub-board 15, a heat conducting oil injection port 22 is arranged on the heat conducting oil cavity, a sealing cover 21 is arranged on the heat conducting oil injection port 22, two ends of the evaporating pipe 16 are respectively connected with the heat conducting oil cavity, as can be seen in fig. 6, mounting ports communicated with the heat conducting oil cavity are respectively arranged on the left side and the right side of the lower part of the heat exchange sub-board, and two ends of the evaporating pipe 16 are respectively connected with the two mounting ports. The back side of the heat exchange daughter board 15 is connected with the front side of the heat exchange mother board 13 in a controllable attaching or separating way, a refrigerant cavity 20 is arranged in the heat exchange mother board, and a refrigerant inlet 12 and a refrigerant outlet are arranged on the refrigerant cavity 20. The structure that the back side of the heat exchange daughter board is controllably attached to or separated from the front side of the heat exchange mother board is as follows: the front side of the heat exchange mother plate 13 is provided with a sliding pin 17, the heat exchange daughter board 15 is provided with a connecting sliding hole matched with the sliding pin 17, the heat exchange daughter board 15 is arranged on the front side of the heat exchange mother plate 13 in a back-and-forth sliding way through the connecting sliding hole and the sliding pin 17, the front end of the sliding pin 17 on the front side of the heat exchange daughter board 15 is provided with a baffle ring or a baffle cap, and the heat exchange daughter board is prevented from falling off at the front end of the sliding pin; the front side of the heat exchange daughter board is provided with an electromagnet 18, the position of the heat exchange mother board opposite to the electromagnet is provided with an attracting block 26 made of magnetic materials and matched with the electromagnet, and a separation pressure spring 25 is arranged between the heat exchange daughter board and the heat exchange mother board. The back side of the heat exchange sub-plate is provided with a pressure spring mounting groove, the separation pressure spring 25 is arranged in the pressure spring mounting groove, and the separation pressure spring 25 can be completely pressed into the pressure spring mounting groove, so that the back side of the heat exchange sub-plate is fully attached to the front side of the heat exchange mother plate. As can be seen from the figure, the four corners of the heat exchange mother board and the heat exchange daughter board are respectively provided with connecting lugs, the four connecting lugs of the heat exchange mother board are provided with connecting holes, the connecting sliding holes 23 on the heat exchange daughter board are arranged on the connecting lugs at the four corners of the heat exchange daughter board, and the sliding pins 17 pass through the connecting sliding holes 23 and are fixedly connected with the connecting holes on the four connecting lugs of the heat exchange mother board; the pressure spring mounting grooves are formed in four connecting lugs of the heat exchange sub-plate, and the sliding pins penetrate through the separation pressure springs to play a role in positioning and guiding. The two sides of the heat exchange daughter board are respectively provided with a connecting seat, the two connecting seats are respectively provided with an electromagnet 18, and the two sides of the heat exchange mother board are provided with a suction block 26 matched with the electromagnet 18. Or the structure that the back side of the heat exchange daughter board is controllably attached to or separated from the front side of the heat exchange mother board is as follows: the front side of the heat exchange mother board is provided with a sliding pin, the heat exchange daughter board is provided with a connecting sliding hole matched with the sliding pin, the heat exchange daughter board can be arranged on the front side of the heat exchange mother board in a back-and-forth sliding way through the connecting sliding hole and the sliding pin, the front end of the sliding pin on the front side of the heat exchange daughter board is provided with a blocking cap, and the heat exchange daughter board is prevented from falling off at the rear end of the sliding pin; the front side of the heat exchange daughter board and the back side of the heat exchange mother board are respectively provided with a front electromagnet and a back electromagnet which are matched with each other, the front electromagnet and the back electromagnet are respectively connected with a power supply through a current commutator, and the current commutator can realize the conversion of positive and negative poles of current by using a double-pole double-throw switch.
According to the invention, the evaporating pipe is coiled on the radiating fin to form a fin type evaporator, and one side of the fin type evaporator is attached to the front side surface of the heat exchange sub-plate; enhancing the heat conduction effect.
According to a further improvement of the invention, the heat exchange inserting column 24 is arranged on the rear side surface of the heat exchange daughter board, and the heat exchange inserting hole 19 matched with the heat exchange inserting column is arranged on the front side surface of the heat exchange mother board. When the heat exchange daughter board is attached to the heat exchange mother board, the heat exchange inserting columns 24 are inserted into the heat exchange inserting holes 19, so that the contact area is increased, the heat exchange efficiency is higher, and when heat exchange lubricating oil is arranged between the heat exchange daughter board and the heat exchange mother board and between the heat exchange inserting columns and the heat exchange inserting holes, the heat exchange efficiency is further improved. The heat exchange plug column 24 is internally provided with a heat exchange cavity connected with the heat conduction oil cavity, and the heat exchange jack 19 is backwards protruded into the refrigerant cavity 20 of the heat exchange mother board. Further improving the heat exchange efficiency. The low-temperature freezing chamber evaporator is a fin type evaporator. The low-temperature freezing chamber, the freezing chamber and the refrigerating chamber of the box body are respectively provided with an evaporator mounting chamber, the low-temperature freezing chamber evaporator, the freezing chamber evaporator and the refrigerating chamber evaporator are respectively arranged in the evaporator mounting chambers of the low-temperature freezing chamber, the freezing chamber and the refrigerating chamber, cold air inlets 1 are arranged between the low-temperature freezing chamber, the freezing chamber and the refrigerating chamber and the respective evaporator mounting chambers, and the cold air inlets 1 are provided with fans.
When the invention works, the temperature of the low-temperature freezing chamber is between-40 degrees and-50 degrees, so that food or articles with low temperature requirements can be well frozen and stored, and the shelf life of common food is greatly prolonged. The refrigeration control between the low-temperature freezing chamber and the freezing chamber is realized by controlling the polarity of the electromagnet or the on-off of the current, and the refrigeration system has the advantages of simple structure, low cost, simple pipeline, low failure rate, high refrigeration efficiency, energy conservation and the like. The working states of the freezing chamber evaporator and the refrigerating chamber evaporator are controllable at any time, the temperature control precision is higher, and the lower the temperature of the low-temperature freezing chamber is in a specified range, the better. Further heat transfer mother board, heat exchange daughter board and conduction oil have very strong cold-storage capacity, can slow down freezing chamber and cold-stored room's temperature change speed greatly, reduce the frequent start of compressor, and temperature control is more accurate, and energy-conserving effect is better.
Claims (4)
1. The domestic low-temperature refrigerator is provided with a refrigerator body, wherein the refrigerator body comprises a freezing chamber and a refrigerating chamber, and is characterized in that the refrigerator body is internally provided with a low-temperature freezing chamber; the refrigerating system comprises a compressor, a condenser, a throttling device, a heat regenerator, a low-temperature freezing chamber evaporator, a freezing chamber evaporator and a refrigerating chamber evaporator, wherein a refrigerant outlet of the compressor is connected with a refrigerant inlet of the condenser, a refrigerant outlet of the condenser is connected with an inlet of a first runner of the heat regenerator, an outlet of the first runner of the heat regenerator is connected with an inlet of the throttling device, an outlet of the throttling device is connected with a refrigerant inlet of the low-temperature freezing chamber evaporator, a refrigerant outlet of the low-temperature freezing chamber evaporator is connected with a refrigerant inlet of the freezing chamber evaporator, a refrigerant outlet of the freezing chamber evaporator is connected with a refrigerant inlet of the refrigerating chamber evaporator, a refrigerant outlet of the refrigerating chamber evaporator is connected with an inlet of a second runner of the heat regenerator, and an outlet of the second runner of the heat regenerator is connected with a refrigerant inlet of the compressor to form a refrigerating cycle; the refrigerating chamber evaporator and the freezing chamber evaporator have the same structure, and comprise an evaporating pipe, a heat exchange daughter board and a heat exchange mother board, wherein a heat conduction oil cavity is arranged in the heat exchange daughter board, a heat conduction oil injection port is arranged on the heat conduction oil cavity, two ends of the evaporating pipe are respectively connected with the heat conduction oil cavity, the rear side surface of the heat exchange daughter board is controllably attached to or separated from the front side of the heat exchange mother board, a refrigerant cavity is arranged in the heat exchange mother board, and a refrigerant inlet and a refrigerant outlet are arranged on the refrigerant cavity; the structure that the back side of the heat exchange daughter board is controllably attached to or separated from the front side of the heat exchange mother board is as follows: the front side of the heat exchange mother board is provided with a sliding pin, the heat exchange daughter board is provided with a connecting sliding hole matched with the sliding pin, and the heat exchange daughter board can be arranged on the front side of the heat exchange mother board in a front-back sliding way through the connecting sliding hole and the sliding pin; the heat exchange daughter board and the heat exchange mother board are respectively provided with a front electromagnet and a rear electromagnet which are matched with each other, and the front electromagnet and the rear electromagnet are respectively connected with a power supply through a current reverser; the structure that the back side of the heat exchange daughter board is controllably attached to or separated from the front side of the heat exchange mother board is as follows: the front side of the heat exchange mother board is provided with a sliding pin, the heat exchange daughter board is provided with a connecting sliding hole matched with the sliding pin, and the heat exchange daughter board can be arranged on the front side of the heat exchange mother board in a front-back sliding way through the connecting sliding hole and the sliding pin; an electromagnet is arranged on the heat exchange daughter board or the heat exchange mother board, an attraction block which is made of magnetic materials and matched with the electromagnet is arranged on the heat exchange mother board or the heat exchange daughter board, and a separation pressure spring is arranged between the heat exchange daughter board and the heat exchange mother board.
2. The domestic low temperature refrigerator of claim 1, wherein the regenerator is formed by closely attaching two heat exchange tubes and then spirally winding the two heat exchange tubes.
3. The domestic low temperature refrigerator of claim 1, wherein the evaporating pipe is wound around the heat sink to form a fin type evaporator, and one side of the fin type evaporator is attached to the front side of the heat exchanger sub-plate.
4. The domestic low-temperature refrigerator as claimed in claim 1, wherein the low-temperature freezing chamber, the freezing chamber and the refrigerating chamber of the refrigerator body are respectively provided with an evaporator installation chamber, the low-temperature freezing chamber evaporator, the freezing chamber evaporator and the refrigerating chamber evaporator are respectively installed in the evaporator installation chambers of the low-temperature freezing chamber, the freezing chamber and the refrigerating chamber, cold air inlets are arranged between the low-temperature freezing chamber, the freezing chamber and the refrigerating chamber and the respective evaporator installation chambers, and a fan is arranged on the cold air inlets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810608477.6A CN108662831B (en) | 2018-06-13 | 2018-06-13 | Domestic low-temperature refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810608477.6A CN108662831B (en) | 2018-06-13 | 2018-06-13 | Domestic low-temperature refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108662831A CN108662831A (en) | 2018-10-16 |
| CN108662831B true CN108662831B (en) | 2024-05-17 |
Family
ID=63775718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810608477.6A Active CN108662831B (en) | 2018-06-13 | 2018-06-13 | Domestic low-temperature refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108662831B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9046287B2 (en) * | 2013-03-15 | 2015-06-02 | Whirlpool Corporation | Specialty cooling features using extruded evaporator |
| KR102467404B1 (en) * | 2017-03-21 | 2022-11-16 | 엘지전자 주식회사 | Refrigerator |
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|---|---|---|---|---|
| DE19527674A1 (en) * | 1995-07-31 | 1997-02-06 | Anceram Gmbh & Co Kg | Cooling device |
| WO1999032839A1 (en) * | 1997-12-22 | 1999-07-01 | BSH Bosch und Siemens Hausgeräte GmbH | Evaporator system |
| CN201203314Y (en) * | 2008-04-18 | 2009-03-04 | 河南新飞电器有限公司 | Cold-storage box and evaporator having the same |
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