CN212778127U - Refrigerator with a door - Google Patents
Refrigerator with a door Download PDFInfo
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- CN212778127U CN212778127U CN202020876656.0U CN202020876656U CN212778127U CN 212778127 U CN212778127 U CN 212778127U CN 202020876656 U CN202020876656 U CN 202020876656U CN 212778127 U CN212778127 U CN 212778127U
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- 238000005057 refrigeration Methods 0.000 claims abstract description 87
- 238000001704 evaporation Methods 0.000 claims abstract description 42
- 230000008020 evaporation Effects 0.000 claims abstract description 39
- 238000001816 cooling Methods 0.000 claims abstract description 33
- 230000005494 condensation Effects 0.000 claims abstract description 16
- 238000009833 condensation Methods 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 8
- 239000003570 air Substances 0.000 description 81
- 239000003507 refrigerant Substances 0.000 description 19
- 238000010257 thawing Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 238000007664 blowing Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000009246 food effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a refrigerator, which comprises a refrigerator body, wherein a first storage chamber and a second storage chamber are formed inside the refrigerator body, and the refrigerator also comprises a high-temperature refrigeration circulation loop and a low-temperature refrigeration circulation loop; the high-temperature refrigeration circulation loop comprises a first evaporator and an evaporation part, wherein the first evaporator is used for absorbing heat and supplying cold to the first storage chamber and the second storage chamber; the low-temperature-stage refrigeration cycle loop comprises a condensation part and a second evaporator for absorbing heat, wherein the condensation part is thermally connected with the evaporation part; the box body comprises an inner container, and a first storage compartment is arranged in the inner container; the second evaporator comprises an evaporation pipe which is laid on the rear wall of the inner container in a snake-shaped extending mode; or the second evaporator is a tube-plate evaporator and is arranged on the rear wall surface of the inner container. The refrigerator can supply cold to a plurality of storage compartments of the refrigerator, has multi-temperature-zone multifunctional storage compartments with deep cooling and conventional cooling, has good refrigerating effect and is convenient for deep cooling storage for a long time.
Description
Technical Field
The utility model relates to a refrigeration field especially relates to a refrigerator.
Background
At present, the temperature range of the temperature-changing chamber of the refrigerator on the market is mostly adjusted between 8 ℃ and 18 ℃, and the overall design is more conventional. With the gradual improvement of living standard of people, the refrigerator with the temperature zone can not well meet the requirements of people, a high-end refrigerator which has a wider temperature range and more complete functions and can meet more requirements of users needs to be designed, the food is stored at a glass state below-40 ℃, the food nutritive value can be stored to the maximum extent, the market of the high-end user has the requirement on an ultralow temperature compartment (minus 40 ℃ to minus 60 ℃), and the user experience is grasped tightly for improving the satisfaction degree of the user. For this reason, the conventional cascade compression refrigeration system is generally composed of two separate refrigeration cycles, which are called a high-temperature stage refrigeration cycle (referred to as a high-temperature portion) and a low-temperature stage refrigeration cycle (referred to as a low-temperature portion), respectively. The high temperature portion uses a first refrigerant having a relatively high evaporation temperature, and the low temperature portion uses a second refrigerant having a relatively low evaporation temperature. And a condensing evaporator is adopted, which utilizes the cold energy produced by the first refrigerant in the high-temperature part to condense the second refrigerant vapor discharged by the compressor in the low-temperature part, thereby realizing the low temperature below minus 60 ℃. However, in the partial overlapping type compression refrigeration system in the prior art, the high-temperature stage refrigeration cycle loop is only used for supplying cold to the condenser of the low-temperature stage refrigeration cycle loop, so that the refrigeration efficiency of the overlapping type compression refrigeration system is low, and the conventional deep cooling refrigerator only has a single temperature function, so that the system efficiency is low.
SUMMERY OF THE UTILITY MODEL
In order to overcome at least one technical defect of current cryrogenic refrigerator, the utility model discloses an inventor has provided and has utilized the air-cooled evaporimeter to carry out the cryrogenic operation of storing room, however the inventor discovers that the low temperature system is lower for room temperature if setting up to the air-cooled evaporimeter, the evaporimeter frosts sooner, need heat evaporimeter surface temperature to more than 0 ℃ during the defrosting, and room temperature rise is higher, can't guarantee the fresh-keeping effect of food. Based on this, the utility model provides a novel refrigerator.
The utility model provides a refrigerator, which comprises a refrigerator body, wherein a first storage chamber and a second storage chamber are formed inside the refrigerator body, and the refrigerator also comprises a high-temperature refrigeration circulation loop and a low-temperature refrigeration circulation loop;
the high-temperature refrigeration cycle loop comprises a first evaporator and an evaporation part, wherein the first evaporator is used for absorbing heat and supplying cold to the first storage compartment and the second storage compartment;
the low-temperature-stage refrigeration cycle loop comprises a condensation part and a second evaporator for absorbing heat, and the condensation part is thermally connected with the evaporation part;
the box body comprises an inner container, and the first storage compartment is arranged in the inner container; the second evaporator is arranged on the rear wall of the inner container and used for supplying cold to the second storage compartment in a direct cooling mode.
Optionally, the second evaporator includes one evaporation tube, or a plurality of evaporation tubes, and the plurality of evaporation tubes are arranged in parallel; each evaporation tube is laid on the rear wall of the inner container in a snakelike extending mode; or the second evaporator is a tube-plate evaporator and is arranged on the rear wall surface of the inner container.
Optionally, the high-temperature stage refrigeration cycle loop further includes a third evaporator, and the third evaporator is used for supplying cold to the third storage compartment.
Optionally, the first storage compartment and the second storage compartment are arranged in parallel along a transverse extension direction of the refrigerator, and the third storage compartment is arranged on the upper sides of the first storage compartment and the second storage compartment.
Optionally, a first refrigeration chamber for arranging the first evaporator is further formed in the box body at a position corresponding to the first storage compartment, and the first refrigeration chamber is communicated with the first storage compartment through a first air supply structure so as to provide refrigeration air flow to the first storage compartment through the first air supply structure; and is
The first refrigerating chamber is also communicated with the second storage compartment through an air supply communicating air channel; and a first controllable air door is arranged in the air supply communication air channel, and the air supply communication air channel is used for providing refrigerating airflow for the second storage compartment after the first controllable air door is controlled to be opened.
Optionally, the first refrigeration chamber is also communicated with the second storage compartment through a return air communicating air duct; and a second controllable air door is arranged in the return air communicating air channel, and after the first controllable air door and the second controllable air door are controlled to be opened, refrigerating airflow enters the second storage compartment through the air supply communicating air channel and returns to the first refrigerating compartment through the return air communicating air channel.
Optionally, the high-temperature stage refrigeration cycle further includes a high-temperature stage compressor, a high-temperature stage condensation device, and a first throttling device, which are connected in series in sequence, an inlet of the third evaporator is communicated with an outlet of the first throttling device, an outlet of the third evaporator is communicated with an inlet of the first evaporator, and an outlet of the first evaporator is communicated with an inlet of the high-temperature stage compressor;
the evaporation part is arranged between the first evaporator and the high-temperature stage compressor, or the evaporation part is arranged between the third evaporator and the first evaporator.
Optionally, the high-temperature stage refrigeration cycle further comprises a control valve and a second throttling device, an inlet of the first throttling device and an inlet of the second throttling device are communicated with an outlet of the condensing device through the control valve, and an outlet of the second throttling device is communicated with an outlet pipeline of the third evaporator.
Optionally, an inlet of the air supply communication duct is connected to the first refrigeration chamber or the first air supply structure, and an outlet of the air supply communication duct is connected to the second storage compartment.
Optionally, the first air supply structure is arranged between the first refrigeration chamber and the first storage compartment; the rear side surface of the first air supply structure is provided with an air inlet, the front side surface of the first air supply structure is provided with a plurality of air supply outlets, and an air supply duct is arranged in the first air supply structure; the evaporation part and the condensation part are arranged in the first refrigerating chamber.
Optionally, when the refrigerator is in the deep cooling mode in which the second evaporator operates, and when the amount of frost in the first storage compartment reaches a preset amount of frost, the refrigerator is in the normal cooling mode in which the first evaporator operates.
The utility model discloses a refrigerator, be provided with first evaporimeter in its high temperature level refrigeration cycle return circuit, first evaporimeter is used for doing room cooling between first storing and second storing. And a second evaporator is arranged in the low-temperature refrigeration circulation loop and used for supplying cold to the second storage chamber. The energy utilization efficiency in the high-temperature refrigeration cycle loop is improved, and the refrigerator can simultaneously supply cold to a plurality of storage compartments, so that the refrigeration efficiency of the refrigerator is improved. The first evaporator and the second evaporator can both supply cold to the second storage chamber, so that a single storage chamber of the refrigerator has a multi-temperature-zone function, even if the second storage chamber can obtain different refrigeration effects, different refrigeration requirements and storage requirements are met, the temperature zone range of the second storage chamber can be enlarged, namely, the refrigerator can have a deep cooling function and meet the energy-saving requirement of daily refrigeration. Particularly, the second evaporator supplies cold for the first storage compartment through the direct cooling mode, can prevent that the second evaporator from frosting sooner, when preventing to need frequent defrosting, the fluctuation of compartment temperature is less, guarantees the fresh-keeping effect of food.
Furthermore, when the multifunctional chamber, namely the second storage chamber, has a normal refrigeration function, the first evaporator performs refrigeration operation, cold energy is transmitted to the first storage chamber through the fan, and meanwhile, the multifunctional chamber is provided with cold energy through the matching of the air duct in the bubble layer and the fan of the multifunctional chamber, so that the temperature control of the chamber is realized; when the cryogenic function of the multifunctional chamber is opened, the air duct air door in the bubble layer is closed, the second evaporator of the multifunctional chamber operates, and the cryogenic chamber provides cold energy in a direct cooling mode, so that the cooling purpose is realized.
Further, the utility model discloses a refrigerator is at first evaporimeter during operation, under the normal refrigeration mode promptly, the refrigerator is the air-cooled product, does not have the hidden danger of frosting. When the user switches to the deep cooling mode in which the second evaporator works, the second evaporator works in a direct cooling mode, uniform refrigeration can be realized, the refrigerator can run for a long time, and frosting is less. When the deep cooling mode is operated for a long time to cause the compartment to be frosted and too much frozen, the user can be switched to the normal cooling mode, and the first evaporator cooled by normal air is used for refrigerating and defrosting. Can maintain low temperature cryrogenic operation for a long time, guarantee to eat material long-time storage, if the defrosting needs simultaneously, the air-cooling system of accessible first evaporimeter gets rid of the residual frost layer of compartment, improves product result of use and user experience greatly.
Furthermore, the arrangement positions of each evaporator and the evaporation part in the high-temperature refrigeration circulation loop can ensure the refrigeration efficiency of each evaporator during normal refrigeration, improve the energy efficiency of the refrigerator and have obvious energy-saving effect. That is to say, the refrigerator can ensure that the temperature of each room is controlled when the high-temperature refrigeration circulation loop operates independently, the aim of saving energy is achieved, and the deep cooling function of the refrigerator can be realized by utilizing the low-temperature refrigeration circulation loop.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic view of a refrigerator according to an embodiment of the present invention;
fig. 2 is a schematic partial structural view of a refrigerator according to an embodiment of the present invention;
fig. 3 is a schematic view of a partial structure of a refrigerator according to an embodiment of the present invention;
fig. 4 is a partially-sectioned schematic view of a refrigerator according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a refrigeration system in a refrigerator according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic view of a refrigerator according to an embodiment of the present invention. As shown in fig. 1, and referring to fig. 2 to 5, an embodiment of the present invention provides a refrigerator, which may include a cabinet 20 and a refrigeration system. A plurality of storage compartments are formed in the box body 20, and each storage compartment may include a first storage compartment 21, a second storage compartment 22, and a third storage compartment 23. A refrigeration system, which may also be referred to as a cascade compression refrigeration system, may be disposed within the cabinet 20 and include a high temperature stage refrigeration cycle 30 and a low temperature stage refrigeration cycle 40.
The high-temperature-stage refrigeration cycle circuit 30 is for circulating a first refrigerant, and is provided therein with a first evaporator 35, a third evaporator 36, and an evaporation portion 37 for absorbing heat. The first evaporator 35 and the third evaporator 36 serve to promote the first refrigerant flowing therethrough to absorb heat. The first evaporator 35 is used for cooling the first storage compartment 21 and the second storage compartment 22, and the third evaporator 36 is used for cooling the third storage compartment 23. The high temperature stage refrigeration cycle loop 30 also includes a high temperature stage compressor 31 and a high temperature stage condensing unit 32. The low-temperature-stage refrigeration cycle circuit 40 is for circulating the second refrigerant, and is provided therein with a condensation portion 42 and a second evaporator 44. The second evaporator 44 is used for promoting the second refrigerant flowing through the second evaporator to absorb heat and supplying cold to the second storage compartment 22. The low-temperature stage refrigeration cycle circuit 40 also includes a low-temperature stage compressor 41. The evaporation portion 37 functions to cause the first refrigerant flowing therethrough to absorb heat of the second refrigerant flowing through the condensation portion 42 in the low-temperature-stage refrigeration cycle circuit 40. The first refrigerant and the second refrigerant may be the same refrigerant, such as R600a, or different refrigerants.
The refrigerant, also called refrigerant, usually completes energy conversion by phase change, is a working substance that circulates in a refrigeration system of a refrigeration device, and its working principle is: the refrigerant absorbs heat of a substance to be cooled in the evaporator to evaporate, transfers the absorbed heat to ambient air or water in the condenser to be cooled into liquid, and circulates back and forth to achieve the refrigeration effect by means of state change. The "high temperature" and the "low temperature" in the "high temperature stage refrigeration cycle circuit 30" and the "low temperature stage refrigeration cycle circuit 40" are relative, and the evaporation temperature of the first refrigerant flowing through the high temperature stage refrigeration cycle circuit 30 is higher than the evaporation temperature of the second refrigerant flowing through the low temperature stage refrigeration cycle circuit 40.
The embodiment of the utility model provides a refrigerator, be provided with first evaporimeter 35 and third evaporimeter 36 in its high temperature level refrigeration cycle circuit 30. The first evaporator 35 is used for cooling the first storage chamber 21 and the second storage chamber 22 respectively, the third evaporator 36 is used for cooling the third storage chamber 23, and the second evaporator 44 is arranged in the low-temperature refrigeration cycle loop 40 and used for cooling the second storage chamber 22. The energy utilization efficiency in the high-temperature refrigeration cycle loop 30 is improved, and the refrigerator can supply cold to a plurality of storage compartments, so that the refrigeration efficiency of the refrigerator is improved. The first evaporator 35 can simultaneously supply cold to the first storage chamber 21 and the second storage chamber 22, and the second evaporator 44 can also supply cold to the second storage chamber 22, so that a single storage chamber of the refrigerator has a multi-temperature-zone function, even if the second storage chamber 22 can obtain different refrigeration effects, different refrigeration requirements can be met, the temperature zone range of the second storage chamber 22 can be expanded, namely, the refrigerator can have a deep cooling function and can meet the energy-saving requirement of daily refrigeration.
Preferably, as shown in fig. 2 to 4, in the embodiment of the present invention, the second evaporator 44 supplies cold to the second storage compartment 22 by direct cooling. For example, the box 20 includes an inner container having a second storage compartment 22 therein; the second evaporator 44 is provided on the rear wall of the inner container. Specifically, the second evaporator 44 includes one evaporation tube, or a plurality of evaporation tubes, and the plurality of evaporation tubes are arranged in parallel; each evaporating pipe is laid on the rear wall of the inner container in a snakelike extending mode; alternatively, the second evaporator 44 is a tube-plate evaporator and is mounted on the rear wall surface of the liner. Here, the serpentine shape may include a plurality of straight pipe sections and a plurality of connection pipe sections, the plurality of straight pipe sections are arranged in parallel, and each connection pipe section connects the same side section of two adjacent corresponding straight pipe sections, so that the plurality of straight pipe sections are connected end to end in sequence through the connection pipe sections to form the evaporation pipe.
In some embodiments of the present invention, the first storage compartment 21 and the second storage compartment 22 are disposed in parallel along the lateral extension direction of the refrigerator, and the third storage compartment 23 is disposed on the upper side of the first storage compartment 21 and the second storage compartment 22. The first storage compartment 21 may be a freezing compartment, the second storage compartment 22 may be a multi-functional compartment having multiple temperature zones, and the third storage compartment 23 may be a refrigerating compartment. The arrangement can ensure that the compartment layout is more reasonable and the corresponding articles can be more conveniently stored and taken.
In some embodiments of the present invention, as shown in fig. 2 to 4, the box body 20 is further formed with a first refrigerating chamber 24 for arranging the first evaporator 35 at a position corresponding to the first storage compartment 21, for example, at the rear side of the first storage compartment 21. The first cooling chamber 24 is communicated with the first storage compartment 21 through the first air supply structure 51, so as to provide cooling air flow to the first storage compartment 21 through the first air supply structure 51. Furthermore, the first cooling chamber 21 is also communicated with the second storage compartment 22 through the supply air communicating duct 61. A first controllable air door is arranged in the air supply communicating air duct 61, and after the first controllable air door is controlled to be opened, the air supply communicating air duct 61 is used for providing refrigerating air flow for the second storage compartment 22. The first evaporator 35 can be used for supplying cold to the first storage chamber 21 or the second storage chamber 22 according to requirements, and the cold is supplied in an air cooling mode.
Further, the first refrigeration chamber 24 is also communicated with the second storage compartment 22 through a return air communicating air duct 62; a second controllable air door is arranged in the return air communicating air duct 62, and after the first controllable air door and the second controllable air door are controlled to be opened, the refrigerating air flow enters the second storage compartment through the supply air communicating air duct 61 and returns to the first refrigerating compartment through the return air communicating air duct 62. Preferably, the air supply communication duct 61 is disposed at the upper side of the rear portion of the first storage compartment, an inlet of the air supply communication duct 61 is connected to the first air supply structure 51, and an outlet of the air supply communication duct 61 is connected to the upper portion of the second storage compartment 22. The return air communicating duct 62 communicates with the bottom of the second storage compartment 22.
In some optional embodiments of the utility model, the box 20 is still formed with the second refrigeration room that is used for arranging third evaporator 36 in the position department that the rear side of third storing compartment 23 corresponds, and the second refrigeration room is through second air supply structure and third storing compartment 23 intercommunication to provide the refrigerated air current to third storing compartment 23 through second air supply structure.
The first air supply structure 51 is arranged between the first refrigeration chamber 24 and the first storage compartment 21. An air inlet is arranged on the rear side surface of the first air supply structure 51, and an air supply fan can be arranged at the air inlet. A plurality of air blowing ports 54 are provided on the front side surface of the first air blowing structure 51, and an air blowing duct 55 is provided in the first air blowing structure 51. The lower side of the first air supply structure 51 is provided with an air return duct 56, so that the evaporator supplies air from the bottom and discharges air from the upper part.
In some alternative embodiments, the condensing portion 42 and the evaporating portion 37 may form a condensing evaporator. The condensing evaporator can be a double-pipe heat exchanger, the double-pipe heat exchanger is a concentric sleeve formed by mutually sleeving and connecting two standard pipes with different sizes, the channel outside is called a shell pass, and the channel inside is called a pipe pass. The two different media can flow in the shell side and the tube side in the opposite directions (or in the same direction) to achieve the effect of heat exchange. The evaporation section 37 may be a tube side and the condensation section 42 may be a shell side. In other alternative embodiments, the condensation section 42 and the evaporation section 37 can also be two copper tubes abutting each other. The two copper pipes are arranged in a mutual attaching mode. The contact part between the two copper pipes can be fixed by tin soldering to strengthen the heat transfer. The two copper pipes can be wrapped with aluminum foils. In other alternative embodiments, the condensing portion 42 and the evaporating portion 37 may share heat exchange fins. The evaporation unit 37 and the condensation unit 42 are provided in the first cooling chamber. Of course, the evaporation part 37 and the condensation part 42 may be provided at other positions of the refrigerator.
In some embodiments of the present invention, as shown in fig. 5, the high temperature stage refrigeration cycle further includes a first throttling device 341. The high-temperature stage compressor 31, the high-temperature stage condensing device 32, and the first throttling device 341 are connected in series in this order. An inlet of the third evaporator 36 communicates with an outlet of the first throttling device 341, an outlet of the third evaporator 36 communicates with an inlet of the first evaporator 35, and an outlet of the first evaporator 35 communicates with an inlet of the high temperature stage compressor 31. The evaporation portion 37 is provided between the first evaporator 35 and the high-temperature stage compressor 31, or the evaporation portion 37 is provided between the third evaporator 36 and the first evaporator 35.
Further, the high temperature stage refrigeration cycle circuit further includes a control valve 33 and a second throttling device 342, an inlet of the first throttling device 341 and an inlet of the second throttling device 342 are communicated with an outlet of the condensing device 32 via the control valve 33, and an outlet of the second throttling device 342 is communicated with an outlet pipeline of the third evaporator 36. For example, the evaporation portion 37 is provided between the first evaporator 35 and the high-temperature stage compressor 31. The outlet of the second throttle device 342 communicates between the first evaporator 35 and the third evaporator 36. The control valve 33 can be a switching valve, and the arrangement positions of each evaporator and the evaporation part 37 in the high-temperature refrigeration cycle loop 30 can ensure the refrigeration efficiency of each evaporator during normal-temperature refrigeration, improve the energy efficiency of the refrigerator and have obvious energy-saving effect. The first and second restriction devices 341, 342 may each be a capillary tube. Alternatively, the first throttling device 341 and the second throttling device 342 may be electromagnetic expansion valves. The control valve 33 may now be selected as a one-in-many flow divider valve.
The high temperature stage condensing unit 32 may include a condenser and a dew condensation preventing pipe. The low temperature stage refrigeration cycle circuit 40 further includes a low temperature stage condensing device 45 and a low temperature stage throttling device 43. An outlet of the low-temperature stage compressor 41 is communicated with an inlet of a low-temperature stage condensing device 45, an outlet of the low-temperature stage condensing device 45 is communicated with an inlet of a condensing part 42, an outlet of the condensing part 42 is communicated with a low-temperature stage throttling device 43, an outlet of the low-temperature stage throttling device 43 is communicated with an inlet of a second evaporator 44, and an outlet of the second evaporator 44 is communicated with an inlet of the low-temperature stage compressor 41.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A refrigerator comprises a refrigerator body, wherein a first storage chamber and a second storage chamber are formed in the refrigerator body, and the refrigerator is characterized by further comprising a high-temperature refrigeration circulation loop and a low-temperature refrigeration circulation loop;
the high-temperature refrigeration cycle loop comprises a first evaporator and an evaporation part, wherein the first evaporator is used for absorbing heat and supplying cold to the first storage compartment and the second storage compartment;
the low-temperature-stage refrigeration cycle loop comprises a condensation part and a second evaporator for absorbing heat, and the condensation part is thermally connected with the evaporation part;
the box body comprises an inner container, and the second storage compartment is arranged in the inner container; the second evaporator is arranged on the rear wall of the inner container and used for supplying cold to the second storage compartment in a direct cooling mode; and is
The second evaporator comprises one or more evaporation tubes, and the evaporation tubes are arranged in parallel; each evaporation tube is laid on the rear wall of the inner container in a snakelike extending mode; or the second evaporator is a tube-plate evaporator and is arranged on the rear wall surface of the inner container.
2. The refrigerator according to claim 1,
a third storage chamber is formed in the box body;
the high-temperature refrigeration cycle loop further comprises a third evaporator, and the third evaporator is used for supplying cold to the third storage compartment.
3. The refrigerator according to claim 2,
the first storage compartment and the second storage compartment are arranged in parallel along the transverse extension direction of the refrigerator, and the third storage compartment is arranged on the upper sides of the first storage compartment and the second storage compartment.
4. The refrigerator according to claim 1,
the box body is also provided with a first refrigerating chamber used for arranging the first evaporator at a position corresponding to the first storage compartment, and the first refrigerating chamber is communicated with the first storage compartment through a first air supply structure so as to provide refrigerating airflow for the first storage compartment through the first air supply structure; and is
The first refrigerating chamber is also communicated with the second storage compartment through an air supply communicating air channel; and a first controllable air door is arranged in the air supply communication air channel, and the air supply communication air channel is used for providing refrigerating airflow for the second storage compartment after the first controllable air door is controlled to be opened.
5. The refrigerator according to claim 4,
the first refrigerating chamber is also communicated with the second storage compartment through a return air communicating air channel; and a second controllable air door is arranged in the return air communicating air channel, and after the first controllable air door and the second controllable air door are controlled to be opened, refrigerating airflow enters the second storage compartment through the air supply communicating air channel and returns to the first refrigerating compartment through the return air communicating air channel.
6. The refrigerator according to claim 2,
the high-temperature stage refrigeration cycle loop further comprises a high-temperature stage compressor, a high-temperature stage condensing device and a first throttling device which are sequentially connected in series, wherein an inlet of the third evaporator is communicated with an outlet of the first throttling device, an outlet of the third evaporator is communicated with an inlet of the first evaporator, and an outlet of the first evaporator is communicated with an inlet of the high-temperature stage compressor;
the evaporation part is arranged between the first evaporator and the high-temperature stage compressor, or the evaporation part is arranged between the third evaporator and the first evaporator.
7. The refrigerator according to claim 6,
the high-temperature stage refrigeration cycle loop further comprises a control valve and a second throttling device, an inlet of the first throttling device and an inlet of the second throttling device are communicated with an outlet of the condensing device through the control valve, and an outlet of the second throttling device is communicated with an outlet pipeline of the third evaporator.
8. The refrigerator according to claim 4,
the inlet of the air supply communication air channel is connected to the first refrigerating chamber or the first air supply structure, and the outlet of the air supply communication air channel is connected to the second storage chamber.
9. The refrigerator according to claim 4,
the first air supply structure is arranged between the first refrigeration chamber and the first storage chamber;
the rear side surface of the first air supply structure is provided with an air inlet, the front side surface of the first air supply structure is provided with a plurality of air supply outlets, and an air supply duct is arranged in the first air supply structure;
the evaporation part and the condensation part are arranged in the first refrigerating chamber.
10. The refrigerator according to claim 1,
the refrigerator is in when the cryrogenic mode of second evaporimeter work, when the indoor frosting volume of first storing room reaches and predetermines frosting volume, make the refrigerator is in the normal refrigeration mode of first evaporimeter work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020876656.0U CN212778127U (en) | 2020-05-22 | 2020-05-22 | Refrigerator with a door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020876656.0U CN212778127U (en) | 2020-05-22 | 2020-05-22 | Refrigerator with a door |
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| Publication Number | Publication Date |
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| CN212778127U true CN212778127U (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202020876656.0U Active CN212778127U (en) | 2020-05-22 | 2020-05-22 | Refrigerator with a door |
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| CN (1) | CN212778127U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023207893A1 (en) * | 2022-04-25 | 2023-11-02 | 青岛海尔电冰箱有限公司 | Refrigerator |
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2020
- 2020-05-22 CN CN202020876656.0U patent/CN212778127U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023207893A1 (en) * | 2022-04-25 | 2023-11-02 | 青岛海尔电冰箱有限公司 | Refrigerator |
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