CN113915897A - A kind of refrigerator - Google Patents
A kind of refrigerator Download PDFInfo
- Publication number
- CN113915897A CN113915897A CN202110578001.4A CN202110578001A CN113915897A CN 113915897 A CN113915897 A CN 113915897A CN 202110578001 A CN202110578001 A CN 202110578001A CN 113915897 A CN113915897 A CN 113915897A
- Authority
- CN
- China
- Prior art keywords
- compartment
- temperature threshold
- refrigerator
- state
- wild vegetable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 235000013311 vegetables Nutrition 0.000 claims abstract description 134
- 239000003507 refrigerant Substances 0.000 claims abstract description 16
- 235000021384 green leafy vegetables Nutrition 0.000 claims abstract description 10
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 69
- 238000005192 partition Methods 0.000 claims description 14
- 238000012546 transfer Methods 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000005057 refrigeration Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- 238000011217 control strategy Methods 0.000 description 5
- 238000007710 freezing Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
-
- 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
- F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
-
- 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
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
-
- 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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
-
- 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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a refrigerator, comprising: a refrigerator body; a potherb chamber arranged inside the refrigerator body; the compressor is arranged in the refrigerator body and used for realizing compression treatment of the refrigerant; the condenser is provided with a heat exchange tube and is used for exchanging heat between the refrigerant compressed by the compressor and air; a part of the heat exchange tube of the condenser is attached to the U shell of the outer side plate of the refrigerator body, and at least a part of the heat exchange tube extends towards the wild vegetable chamber and is attached to the outer side plate of the wild vegetable chamber. By adopting the embodiment of the invention, the heat preservation of the wild vegetable chamber can be effectively realized, the energy consumption of the refrigerator can be effectively reduced, and good use experience is provided for users.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to a refrigerator.
Background
The three-door refrigerator is generally structurally characterized in that an upper refrigerating chamber, a middle wild vegetable chamber and a lower refrigerating chamber are arranged, the wild vegetable chamber and the refrigerating chamber are separated by a middle partition plate, holes are reserved in the middle partition plate and used for inserting water injection pipes of an ice maker, and the periphery of the middle partition plate, inner containers on the left side and the right side and a rear air duct are sealed by sponge strips, so that the effect of heat insulation with the refrigerating chamber is achieved. But the periphery of the middle clapboard is sealed and cannot play a role in completing heat insulation, so that the cold energy of the freezing chamber is transmitted to the wild vegetable chamber through the water injection pipe, the water injection port and the periphery of the middle clapboard, and the heat insulation effect cannot be completed. Meanwhile, when the compressor is shut down, the density of low-temperature air near the freezing evaporator is high, the low-temperature air can sink to the bottom of the air duct, the pressure is gradually increased along with the gradual sinking of cold air, and cold air can finally flow back into the wild vegetable chamber through the air return opening, so that the temperature of the wild vegetable chamber is too low, and the wild vegetable is frozen.
In the prior art, the heat preservation of the wild vegetable chamber is realized by arranging the heating wire on the middle partition plate of the wild vegetable chamber, and when the temperature in the wild vegetable chamber is lower than a preset value, the wild vegetable heating wire is started to work and is closed until the temperature in the wild vegetable chamber is higher than the preset value. However, the inventors found that the prior art has at least the following problems: due to the structural limitation of the box body, the indoor temperature of the wild vegetables is low, the required compensation temperature can be met only by using a high-power heating wire (usually more than 18W), but the indoor heat load is increased, the refrigerating capacity is reduced, the power consumption is increased, and the market requirement cannot be met. In addition, in the heating process, the surface temperature of the middle partition plate exceeds 90 ℃, so that the risk of scalding customers is caused, and potential safety hazards such as fire disasters are easy to occur.
Disclosure of Invention
The embodiment of the invention aims to provide a refrigerator, which can effectively realize heat preservation of a potherb chamber, effectively reduce energy consumption of the refrigerator and provide good use experience for a user.
To achieve the above object, an embodiment of the present invention provides a refrigerator, including:
a refrigerator body;
a potherb chamber arranged inside the refrigerator body;
the compressor is arranged in the refrigerator body and used for realizing compression treatment of the refrigerant;
the condenser is provided with a heat exchange tube and is used for exchanging heat between the refrigerant compressed by the compressor and air;
a part of the heat exchange tube of the condenser is attached to the U shell of the outer side plate of the refrigerator body, and at least a part of the heat exchange tube extends towards the wild vegetable chamber and is attached to the outer side plate of the wild vegetable chamber.
As an improvement of the scheme, the laying length of the heat exchange tube attached to the outer side plate of the wild vegetable chamber is as follows:
l is the laying length of a heat exchange tube attached to an outer side plate of the wild vegetable chamber, P is the required heating power of the wild vegetable chamber, k is a heat transfer coefficient, D is the diameter of the heat exchange tube, t1Is the condensing temperature, t, of the condenser2Is the indoor characteristic temperature of the wild vegetable chamber.
As an improvement of the above scheme, the refrigerator further comprises a middle partition plate, wherein the middle partition plate is arranged between the wild vegetable chamber and other compartments and used for insulating the wild vegetable chamber from the other compartments; and the middle partition board is provided with a heating wire for providing heat for the wild vegetable chamber.
As an improvement of the above, the refrigerator further includes:
the environment temperature sensor is arranged outside the refrigerator body and used for detecting the current environment temperature of the environment where the refrigerator is located;
the room temperature sensor is arranged inside the wild vegetable room and used for detecting the current room temperature of the wild vegetable room;
a controller connected to the ambient temperature sensor, the compartment temperature sensor, the compressor, and the heater wire, respectively, for:
receiving the current environment temperature detected by the environment temperature sensor and the current compartment temperature detected by the compartment temperature sensor, and detecting the running state of the compressor; the operation state comprises an opening state and a closing state;
determining an operation mode of the heating wire according to the current environment temperature, the current compartment temperature and the operation state of the compressor; the operation mode comprises an operation state and a start-stop period when the operation state is an opening state;
and controlling the heating wire to operate according to the operation mode.
As an improvement of the above scheme, the determining the operation mode of the heating wire according to the current ambient temperature, the current compartment temperature and the operation state of the compressor specifically includes:
when the current ambient temperature is greater than a preset ambient temperature threshold value and the running state of the compressor is in an opening state, controlling the heating wires to be in the opening state when the room temperature is less than or equal to a first room temperature threshold value, and running in an opening-closing period of a first starting time length and a second stopping time length; and is in a closed state when the compartment temperature is greater than a second compartment temperature threshold;
wherein the second compartment temperature threshold is greater than the first compartment temperature threshold.
As an improvement of the above solution, the determining the operation mode of the heating wire according to the current ambient temperature, the current compartment temperature and the operation state of the compressor further includes:
when the current ambient temperature is greater than a preset ambient temperature threshold and the running state of the compressor is a closed state, controlling the heating wires to be in an open state when the room temperature is less than or equal to a third room temperature threshold, and running in a start-stop period of a first starting time and a second stopping time; and is in a closed state when the compartment temperature is greater than a fourth compartment temperature threshold;
wherein the third chamber temperature threshold is greater than the first chamber temperature threshold; the fourth compartment temperature threshold is greater than the third compartment temperature threshold.
As an improvement of the above solution, the determining the operation mode of the heating wire according to the current ambient temperature, the current compartment temperature and the operation state of the compressor further includes:
when the current ambient temperature is less than or equal to the preset ambient temperature threshold and the running state of the compressor is the starting state, controlling the heating wires to be in the starting state when the compartment temperature is less than or equal to a fifth compartment temperature threshold, and running in a starting-stopping period of a third starting time and a fourth stopping time; and is in a closed state when the compartment temperature is greater than a sixth compartment temperature threshold;
wherein the sixth room temperature threshold is greater than the fifth room temperature threshold, the fifth room temperature threshold is greater than the first room temperature threshold, and the third duration is greater than the first duration.
As an improvement of the above solution, the determining the operation mode of the heating wire according to the current ambient temperature, the current compartment temperature and the operation state of the compressor further includes:
when the current ambient temperature is less than or equal to the preset ambient temperature threshold and the running state of the compressor is the closing state, controlling the heating wires to be in the opening state when the room temperature is less than or equal to a seventh room temperature threshold, and running in the opening and closing period of a third starting time and a fourth stopping time; and is in a closed state when the compartment temperature is greater than an eighth compartment temperature threshold;
wherein the seventh room temperature threshold is greater than the fifth room temperature threshold, and the eighth room temperature threshold is greater than the seventh room temperature threshold.
As an improvement of the above scheme, the heat exchanger is pasted on the outer side plate U shell of the refrigerator body and the outer side plate of the wild vegetable chamber through aluminum foil adhesive tapes.
As an improvement of the scheme, the heat exchange tube attached to the outer side plate of the wild vegetable chamber is 10mm away from the inner container of the wild vegetable chamber.
Compared with the prior art, the refrigerator disclosed by the invention is provided with the condenser and is used for exchanging heat between the refrigerant compressed by the compressor and air; a part of the heat exchange tube of the condenser is attached to the U shell of the outer side plate of the refrigerator body, and at least a part of the heat exchange tube extends towards the wild vegetable chamber and is attached to the outer side plate of the wild vegetable chamber. The controller of the refrigerator is used for receiving the current environment temperature detected by the environment temperature sensor and the current compartment temperature detected by the compartment temperature sensor, and detecting the running state of the compressor; and determining the operation mode of the heating wire according to the current environment temperature, the current compartment temperature and the operation state of the compressor so as to control the operation or stop of the heating wire.
By adopting the embodiment of the invention, the structure and the pipeline distribution of the condenser are newly designed, so that the local pipeline of the condenser is close to the wild vegetable room, and the heat emitted by the condenser is utilized to heat the wild vegetable room, thereby achieving the purpose of keeping the room temperature of the wild vegetable room constant. Meanwhile, the cold energy of the wild vegetable chamber plays a role in cooling the condenser, so that the condensation temperature is reduced, and the refrigeration efficiency of the system is improved. By thermodynamic calculation, the laying length of the condenser pipeline in the wild vegetable chamber area can be accurately calculated, and the actual heat preservation requirement of the wild vegetable chamber is effectively met. And the middle clapboard heating wire with lower power is reserved, and two modes of 'wild vegetable room conventional control' and 'wild vegetable room low-temperature control' are provided according to different environment temperature conditions of actual use of users to control the operation of the heating wire. The ambient temperature sensor, the room temperature sensor, the compressor, the heating wires and the condenser are matched for use, so that the indoor temperature of the wild vegetables meets the temperature requirement, and the purposes of reducing energy consumption, saving cost and improving the refrigeration efficiency of the system are achieved.
Drawings
Fig. 1 is a schematic view of an external structure of a refrigerator according to a first embodiment of the present invention;
FIG. 2 is a right side view showing an assembling effect of a condenser of a refrigerator according to a first embodiment of the present invention;
FIG. 3 is a left side view showing an assembling effect of a condenser of a refrigerator according to a first embodiment of the present invention;
FIG. 4 is a rear view showing an assembly effect of a condenser of a refrigerator according to a first embodiment of the present invention;
fig. 5 is a schematic structural view of a condenser of a refrigerator in the related art;
FIG. 6 is a schematic structural diagram of a condenser of a refrigerator according to a first embodiment of the present invention;
fig. 7 is a schematic structural diagram of a refrigerator according to a second embodiment of the present invention;
fig. 8 is a schematic view of a working flow of a controller in a refrigerator according to a second embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, fig. 1 is a schematic diagram of an external structure of a refrigerator according to a first embodiment of the present invention; FIG. 2 is a right side view showing an assembling effect of a condenser of a refrigerator according to a first embodiment of the present invention; FIG. 3 is a left side view showing an assembling effect of a condenser of a refrigerator according to a first embodiment of the present invention; fig. 4 is a rear view showing an assembly effect of a condenser of a refrigerator according to a first embodiment of the present invention. An embodiment of the present invention provides a refrigerator 10, including:
a refrigerator body 11; a wild vegetable chamber 12 provided inside the refrigerator body; the compressor is arranged in the refrigerator body and used for realizing compression treatment of the refrigerant; a condenser 13 provided with a heat exchange tube for exchanging heat between the refrigerant compressed by the compressor and air; a portion 131 of the heat exchange pipe of the condenser 13 is attached to the U-shaped casing 14 of the outer panel of the refrigerator body 11, and at least a portion 132 of the heat exchange pipe extends toward the wild vegetable chamber 12 and is attached to the outer panel of the wild vegetable chamber 12.
It should be noted that, referring to fig. 5, it is a schematic structural diagram of a condenser of a refrigerator in the prior art. The condenser of the conventional refrigerator is attached to the U-shaped cases at both sides of the refrigerator. When the compressor works, high-temperature and high-pressure refrigerant gas processed by the compressor can enter an air inlet pipeline of the condenser, heat of the refrigerant in the condenser is conducted to a U shell of a side plate of the refrigerator through a heat exchange pipeline, and the U shell conducts heat convection with indoor air to finish heat transfer so as to achieve the purpose of condensation.
In the embodiment of the invention, the heat emitted by the condenser 13 is utilized to realize the heat preservation of the wild vegetable room.
Specifically, referring to fig. 6, a schematic structural diagram of a condenser of a refrigerator according to a first embodiment of the present invention is shown. By extending a portion of the heat exchange pipe attached to the U-shaped case 14 of the outer panel of the refrigerator body 11 to the area of the outer panel of the wild vegetable compartment, the heat exchange pipe is bent in an L-shape toward the wild vegetable compartment when approaching the wild vegetable compartment, and is directly attached to the outer panel of the wild vegetable compartment 12.
Preferably, the heat exchanger is attached to the outer side plate U case of the refrigerator body and the outer side plate of the potherb compartment by aluminum foil tapes. And the heat exchange tube pasted on the outer side plate of the wild vegetable chamber is about 10mm away from the inner container of the wild vegetable chamber.
By adopting the technical means of the embodiment of the invention, when the compressor works, the refrigerant in the condenser conducts heat to the outer side plate of the wild vegetable chamber, and provides compensation heat for the wild vegetable chamber while absorbing cold of the wild vegetable chamber, so that the indoor temperature of the wild vegetable chamber meets the design requirement, and the condensation temperature is reduced, thereby effectively improving the refrigeration efficiency of the system.
In a preferred embodiment, the heat exchange tube attached to the outer side plate of the potherb room is laid at a length of:
l is the laying length of a heat exchange tube attached to an outer side plate of the wild vegetable chamber, P is the required heating power of the wild vegetable chamber, k is a heat transfer coefficient, D is the diameter of the heat exchange tube, t1Is the condensing temperature, t, of the condenser2Is the indoor characteristic temperature of the wild vegetable chamber.
Experimental tests have shown that the prior art mid-diaphragm heater wire power required 18W to maintain the chamber temperature. In the embodiment of the invention, the compensation heat quantity provided for the wild vegetable chamber in the heat exchange process of the condenser can be set to be 10W-18W, so that the power consumption of the heating wire of the middle partition plate in the heating process is reduced or even avoided.
According to the formula: p ═ kA × (t)1-t2) And the heat dissipation area A of the condenser heat exchange tube attached to the outer side plate of the wild vegetable chamber can be calculated. Wherein P is the required heating power of the wild vegetable chamber, and is set to 10W-18W, for example. t is t1The condensing temperature of the condenser is usually 30 ℃; t is t2The indoor characteristic temperature of the wild vegetable chamber is usually 4 ℃; k is a heat transfer coefficient, and can be obtained by heat transfer science:
h is a convection heat transfer coefficient which can be approximately regarded as a constant wall temperature longitudinal-sweeping forced convection heat transfer coefficient and can be calculated by heat transfer science, d is the thickness of a bubble layer between the condenser and the potherb room, and lambda is the heat transfer coefficient of foaming material cyclopentane.
Further, the length L of the heat exchange pipeline needing to be laid in the wild vegetable area can be finally calculated through A ═ pi DL, wherein D is the diameter of the heat exchange pipe, and pi is the circumference ratio.
The embodiment one of the invention provides a refrigerator, which is provided with a condenser and is used for exchanging heat between a refrigerant compressed by a compressor and air; a part of the heat exchange tube of the condenser is attached to the U shell of the outer side plate of the refrigerator body, and at least a part of the heat exchange tube extends towards the wild vegetable chamber and is attached to the outer side plate of the wild vegetable chamber. By adopting the embodiment of the invention, the structure and the pipeline distribution of the condenser are newly designed, so that the local pipeline of the condenser is close to the wild vegetable chamber, and the heat emitted by the condenser is utilized to heat the wild vegetable chamber, thereby achieving the purpose of keeping the temperature of the room of the wild vegetable chamber constant, effectively reducing the power consumption of the heating wires of the wild vegetable chamber and reducing the cost. Meanwhile, the cold energy of the wild vegetable chamber plays a role in cooling the condenser, so that the condensation temperature is reduced, and the refrigeration efficiency of the system is improved. By thermodynamic calculation, the laying length of the condenser pipeline in the wild vegetable chamber area can be accurately calculated, and the actual heat preservation requirement of the wild vegetable chamber is effectively met.
As a preferred implementation, referring to fig. 1 and 7, fig. 7 is a schematic structural diagram of a refrigerator according to a second embodiment of the present invention. The second embodiment of the invention is implemented on the basis of the first embodiment, the refrigerator further comprises a middle partition plate 15, and the middle partition plate 15 is arranged between the wild vegetable chamber 12 and other chambers and is used for insulating the wild vegetable chamber 12 from the other chambers; and the middle partition board 15 is provided with a heating wire 21 for providing heat for the wild vegetable chamber 12.
Illustratively, the refrigerator comprises three compartments, namely a refrigerating compartment, a wild vegetable compartment and a freezing compartment from top to bottom. Because the temperature of freezer is lower, and is great to the temperature influence of potherb room, median septum 15 set up with the potherb room with between the freezer, reach the thermal-insulated effect with the freezer.
In the embodiment of the invention, the heat preservation of the wild vegetable chamber is realized by adopting a mode of providing heat for the wild vegetable chamber in a mode of matching the condensing pipe and the heating wire.
For example, the heat compensation quantity provided by the condenser to the wild vegetable chamber in the heat exchange process is set to be 10W, so that the laying length of the heat exchange pipe in the wild vegetable chamber area is calculated, and in order to achieve the temperature requirement in the wild vegetable chamber, namely the heating of 18W, the remaining 8W is provided by the heating wire.
Adopt condenser pipe and heater strip complex mode do the mode that the wild vegetables room provided heat can further improve right the heat preservation effect of wild vegetables room avoids at the compressor shutdown in-process, and the heat that the condenser gived off is not enough to maintain the temperature requirement of wild vegetables room, leads to the lower condition of wild vegetables room temperature.
As a preferred embodiment, referring to fig. 7, the refrigerator 10 further includes: an ambient temperature sensor 22, a compartment temperature sensor 23, and a controller 24;
the environment temperature sensor 22 is arranged outside the refrigerator body and used for detecting the current environment temperature of the environment where the refrigerator is located; the compartment temperature sensor 23 is arranged inside the wild vegetable compartment and used for detecting the current compartment temperature of the wild vegetable compartment; the controller 24 is connected to the ambient temperature sensor 22, the room temperature sensor 23, the compressor, and the heater wire 21.
Referring to fig. 8, a schematic view of a working flow of a controller in a refrigerator according to a second embodiment of the present invention is shown.
The controller 23 is configured to perform steps S1 to S3:
s1, receiving the current ambient temperature detected by the ambient temperature sensor 22 and the current compartment temperature detected by the compartment temperature sensor 23, and detecting the operating state of the compressor; the operating state includes an on state and an off state.
S2, determining the operation mode of the heating wire according to the current environment temperature, the current compartment temperature and the operation state of the compressor; wherein the operation mode includes the operation state and a start-stop period when the operation state is an on state.
And S3, controlling the heating wire to operate according to the operation mode.
In the embodiment of the invention, two control modes of 'conventional control of the wild vegetable chamber' and 'low-temperature control of the wild vegetable chamber' are provided by identifying the current environment temperature of the refrigerator, and the operating state and the start-stop period of the heating wire are controlled by using the temperature sensor in the wild vegetable chamber and the environment temperature sensor in a matching way, so that the temperature of the wild vegetable chamber can meet the temperature requirement of being higher than 2 ℃ and lower than 7 ℃, and the energy consumption loss is reduced.
Specifically, the step S2 is performed by:
s21, when the current ambient temperature is greater than a preset ambient temperature threshold value and the running state of the compressor is in an opening state, controlling the heating wire to be in the opening state when the room temperature is less than or equal to a first room temperature threshold value, and running in an opening and closing cycle with a first starting time length and a second stopping time length; and is in a closed state when the compartment temperature is greater than a second compartment temperature threshold; wherein the second compartment temperature threshold is greater than the first compartment temperature threshold.
S22, when the current ambient temperature is greater than a preset ambient temperature threshold value and the running state of the compressor is a closed state, controlling the heating wire to be in an open state when the room temperature is less than or equal to a third room temperature threshold value, and running in a start-stop cycle with a first starting time length and a second stopping time length; and is in a closed state when the compartment temperature is greater than a fourth compartment temperature threshold; wherein the third chamber temperature threshold is greater than the first chamber temperature threshold; the fourth compartment temperature threshold is greater than the third compartment temperature threshold.
For example, the preset ambient temperature threshold may be set to 20 ℃, the first room temperature threshold may be set to 2 ℃, the second room temperature threshold may be set to 3 ℃, the third room temperature threshold may be set to 3 ℃, the fourth room temperature threshold may be set to 4 ℃, and the first and second time periods may be set to 1 min.
When the current environment temperature is higher than 20 ℃, the outdoor environment temperature is judged to be the conventional control of the wild vegetable chamber, at the moment, the environment temperature outside the refrigerator is relatively high, the heat load of the refrigerator is large, the heat quantity transferred from outdoor hot air to the wild vegetable is large, the temperature of the wild vegetable chamber is relatively high, and the heat quantity does not need to be compensated too much. In the state, the heating wire is controlled according to the starting time of 1min and the stopping time of 1min, and simultaneously, the running state of the heating wire is controlled according to the running state of the compressor, which is as follows:
when the controller receives a starting signal required by the compressor and judges that the compressor is in a starting state, the heat in the condenser can be transferred to the wild vegetable chamber at the moment, the temperature of the wild vegetable chamber is relatively high, the heat to be compensated is little, and the starting and stopping points of the heating wires are controlled according to the following control strategy: when the temperature of the front compartment is less than or equal to 2 ℃, the heating wire is opened, and when the temperature of the front compartment is more than 3 ℃, the heating wire is closed;
receive compressor demand shutdown signal when the main control panel, judge the compressor is in when the closed condition, does not have the high temperature refrigerant to flow through in the condenser this moment, can't transmit the heat and give the wild vegetable room, and the freezer air conditioning can flow backward in the wild vegetable room through the wild vegetable return air inlet simultaneously, leads to the wild vegetable room temperature to be on the low side, so the wild vegetable room needs the compensation heat more under this state, according to following control strategy control the switching on and shutting down point of heater strip: when the temperature of the front compartment is less than or equal to 3 ℃, the heating wire is opened, and when the temperature of the front compartment is more than 4 ℃, the heating wire is closed.
Further, the step S2 is performed by further including the steps of:
s23, when the current ambient temperature is less than or equal to the preset ambient temperature threshold and the running state of the compressor is in the starting state, controlling the heating wire to be in the starting state when the compartment temperature is less than or equal to a fifth compartment temperature threshold, and running in a starting-stopping period of a third starting time and a fourth stopping time; and is in a closed state when the compartment temperature is greater than a sixth compartment temperature threshold; wherein the sixth room temperature threshold is greater than the fifth room temperature threshold, the fifth room temperature threshold is greater than the first room temperature threshold, and the third duration is greater than the first duration.
S24, when the current ambient temperature is less than or equal to the preset ambient temperature threshold and the running state of the compressor is in a closed state, controlling the heating wire to be in an open state when the room temperature is less than or equal to a seventh room temperature threshold, and running in a start-stop cycle with a third starting time and a fourth stopping time; and is in a closed state when the compartment temperature is greater than an eighth compartment temperature threshold; wherein the seventh room temperature threshold is greater than the fifth room temperature threshold, and the eighth room temperature threshold is greater than the seventh room temperature threshold.
Illustratively, the fifth room temperature threshold is set to 4 ℃, the sixth room temperature threshold is set to 5 ℃, the seventh room temperature threshold is set to 5 ℃, the eighth room temperature threshold is set to 6 ℃, the third time period is set to 2min, and the fourth time periods are all set to 1 min.
When the current environment temperature is less than or equal to 20 ℃, the outdoor temperature is judged to be the low-temperature control of the wild vegetable chamber, the refrigerator heat load is lower, the temperature of the wild vegetable chamber is lower, the heat quantity of the wild vegetable chamber is more to be compensated, the heating wire is controlled by opening for 2min and stopping for 1min, and meanwhile, the operation state of the heating wire is controlled according to the operation state of the compressor, which is as follows:
when the controller receives a starting signal required by the compressor and judges that the compressor is in a starting state, the heat in the condenser can be transferred to the wild vegetable chamber at the moment, the temperature of the wild vegetable chamber is relatively high, and the starting and stopping points of the heating wires are controlled according to the following control strategy: when the temperature of the front compartment is less than or equal to 4 ℃, the heating wire is opened, and when the temperature of the front compartment is more than 5 ℃, the heating wire is closed;
when the controller receives a compressor demand shutdown signal and judges that the compressor is in a shutdown state, no high-temperature refrigerant flows through the condenser at the moment, heat cannot be transferred to the wild vegetable chamber, and meanwhile, cold air in the freezing chamber can flow backwards into the wild vegetable chamber through a wild vegetable return air inlet to cause the temperature of the wild vegetable chamber to be lower, so that the heat required by the wild vegetable chamber is more in the state, and the startup and shutdown point of the heating wire is controlled according to the following control strategy: when the temperature of the front compartment is less than or equal to 5 ℃, the heating wire is opened, and when the temperature of the front compartment is more than 6 ℃, the heating wire is closed.
The specific control strategy is shown in table 1:
TABLE 1
It is to be understood that the preset ambient temperature threshold, the first to eighth room temperature thresholds, and the first to fourth time periods mentioned in the above scenarios are only examples, and in practical applications, the preset ambient temperature threshold, the first to eighth room temperature thresholds, and the first to fourth time periods may be set according to practical situations, and are not specifically limited herein.
The second embodiment of the invention provides a refrigerator, which is provided with a condenser and is used for exchanging heat between a refrigerant compressed by a compressor and air; a part of the heat exchange tube of the condenser is attached to the U shell of the outer side plate of the refrigerator body, and at least a part of the heat exchange tube extends towards the wild vegetable chamber and is attached to the outer side plate of the wild vegetable chamber. The refrigerator controller is used for receiving the current environment temperature detected by the environment temperature sensor and the current compartment temperature detected by the compartment temperature sensor, and detecting the running state of the compressor; and determining the operation mode of the heating wire according to the current environment temperature, the current compartment temperature and the operation state of the compressor so as to control the operation or stop of the heating wire.
By adopting the embodiment of the invention, the structure and the pipeline distribution of the condenser are newly designed, so that the local pipeline of the condenser is close to the wild vegetable room, and the heat emitted by the condenser is utilized to heat the wild vegetable room, thereby achieving the purpose of keeping the room temperature of the wild vegetable room constant. Meanwhile, the cold energy of the wild vegetable chamber plays a role in cooling the condenser, so that the condensation temperature is reduced, and the refrigeration efficiency of the system is improved. By thermodynamic calculation, the laying length of the condenser pipeline in the wild vegetable chamber area can be accurately calculated, and the actual heat preservation requirement of the wild vegetable chamber is effectively met. And the middle clapboard heating wire with lower power is reserved, and two modes of 'wild vegetable room conventional control' and 'wild vegetable room low-temperature control' are provided according to different environment temperature conditions of actual use of users to control the operation of the heating wire. The ambient temperature sensor, the room temperature sensor, the compressor, the heating wires and the condenser are matched for use, so that the indoor temperature of the wild vegetables meets the temperature requirement, and the purposes of reducing energy consumption, saving cost and improving the refrigeration efficiency of the system are achieved.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A refrigerator, characterized by comprising:
a refrigerator body;
a potherb chamber arranged inside the refrigerator body;
the compressor is arranged in the refrigerator body and used for realizing compression treatment of the refrigerant;
the condenser is provided with a heat exchange tube and is used for exchanging heat between the refrigerant compressed by the compressor and air;
a part of the heat exchange tube of the condenser is attached to the U shell of the outer side plate of the refrigerator body, and at least a part of the heat exchange tube extends towards the wild vegetable chamber and is attached to the outer side plate of the wild vegetable chamber.
2. The refrigerator as claimed in claim 1, wherein the heat exchange pipe attached to the outer panel of the potherb compartment is laid at a length of:
l is the laying length of a heat exchange tube attached to an outer side plate of the wild vegetable chamber, P is the required heating power of the wild vegetable chamber, k is a heat transfer coefficient, D is the diameter of the heat exchange tube, t1Is the condensing temperature, t, of the condenser2Is the indoor characteristic temperature of the wild vegetable chamber.
3. The refrigerator of claim 1, further comprising a middle partition disposed between the wild vegetable compartment and the other compartments for insulating the wild vegetable compartment from the other compartments; and the middle partition board is provided with a heating wire for providing heat for the wild vegetable chamber.
4. The refrigerator of claim 3, further comprising:
the environment temperature sensor is arranged outside the refrigerator body and used for detecting the current environment temperature of the environment where the refrigerator is located;
the room temperature sensor is arranged inside the wild vegetable room and used for detecting the current room temperature of the wild vegetable room;
a controller connected to the ambient temperature sensor, the compartment temperature sensor, the compressor, and the heater wire, respectively, for:
receiving the current environment temperature detected by the environment temperature sensor and the current compartment temperature detected by the compartment temperature sensor, and detecting the running state of the compressor; the operation state comprises an opening state and a closing state;
determining an operation mode of the heating wire according to the current environment temperature, the current compartment temperature and the operation state of the compressor; the operation mode comprises an operation state and a start-stop period when the operation state is an opening state;
and controlling the heating wire to operate according to the operation mode.
5. The refrigerator according to claim 4, wherein the determining the operation mode of the heating wire according to the current ambient temperature, the current compartment temperature and the operation state of the compressor comprises:
when the current ambient temperature is greater than a preset ambient temperature threshold value and the running state of the compressor is in an opening state, controlling the heating wires to be in the opening state when the room temperature is less than or equal to a first room temperature threshold value, and running in an opening-closing period of a first starting time length and a second stopping time length; and is in a closed state when the compartment temperature is greater than a second compartment temperature threshold;
wherein the second compartment temperature threshold is greater than the first compartment temperature threshold.
6. The refrigerator of claim 5, wherein the determining of the operation mode of the heating wire according to the current ambient temperature, the current compartment temperature, and the operation state of the compressor further comprises:
when the current ambient temperature is greater than a preset ambient temperature threshold and the running state of the compressor is a closed state, controlling the heating wires to be in an open state when the room temperature is less than or equal to a third room temperature threshold, and running in a start-stop period of a first starting time and a second stopping time; and is in a closed state when the compartment temperature is greater than a fourth compartment temperature threshold;
wherein the third chamber temperature threshold is greater than the first chamber temperature threshold; the fourth compartment temperature threshold is greater than the third compartment temperature threshold.
7. The refrigerator of claim 5, wherein the determining of the operation mode of the heating wire according to the current ambient temperature, the current compartment temperature, and the operation state of the compressor further comprises:
when the current ambient temperature is less than or equal to the preset ambient temperature threshold and the running state of the compressor is the starting state, controlling the heating wires to be in the starting state when the compartment temperature is less than or equal to a fifth compartment temperature threshold, and running in a starting-stopping period of a third starting time and a fourth stopping time; and is in a closed state when the compartment temperature is greater than a sixth compartment temperature threshold;
wherein the sixth room temperature threshold is greater than the fifth room temperature threshold, the fifth room temperature threshold is greater than the first room temperature threshold, and the third duration is greater than the first duration.
8. The refrigerator of claim 7, wherein the determining of the operation mode of the heating wire according to the current ambient temperature, the current compartment temperature, and the operation state of the compressor further comprises:
when the current ambient temperature is less than or equal to the preset ambient temperature threshold and the running state of the compressor is the closing state, controlling the heating wires to be in the opening state when the room temperature is less than or equal to a seventh room temperature threshold, and running in the opening and closing period of a third starting time and a fourth stopping time; and is in a closed state when the compartment temperature is greater than an eighth compartment temperature threshold;
wherein the seventh room temperature threshold is greater than the fifth room temperature threshold, and the eighth room temperature threshold is greater than the seventh room temperature threshold.
9. The refrigerator as claimed in claim 1, wherein the heat exchanger is attached to the outer side U-shell of the refrigerator body and the outer side of the wild vegetable compartment by aluminum foil tape.
10. The refrigerator as claimed in claim 1, wherein the heat exchange pipe attached to the outer panel of the wild vegetable chamber is spaced apart from the inner container of the wild vegetable chamber by 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110578001.4A CN113915897A (en) | 2021-05-26 | 2021-05-26 | A kind of refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110578001.4A CN113915897A (en) | 2021-05-26 | 2021-05-26 | A kind of refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113915897A true CN113915897A (en) | 2022-01-11 |
Family
ID=79232657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110578001.4A Pending CN113915897A (en) | 2021-05-26 | 2021-05-26 | A kind of refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113915897A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1590934A (en) * | 2003-08-25 | 2005-03-09 | 乐金电子(天津)电器有限公司 | Pavallel arranged refrigerator having heatable vegetable storage chamber |
| JP2007113825A (en) * | 2005-10-19 | 2007-05-10 | Toshiba Corp | Refrigerator |
| CN104567183A (en) * | 2014-12-31 | 2015-04-29 | 合肥美的电冰箱有限公司 | Refrigerator chamber and refrigerator |
| CN208541805U (en) * | 2016-08-01 | 2019-02-26 | 三菱电机株式会社 | Fridge-freezer |
-
2021
- 2021-05-26 CN CN202110578001.4A patent/CN113915897A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1590934A (en) * | 2003-08-25 | 2005-03-09 | 乐金电子(天津)电器有限公司 | Pavallel arranged refrigerator having heatable vegetable storage chamber |
| JP2007113825A (en) * | 2005-10-19 | 2007-05-10 | Toshiba Corp | Refrigerator |
| CN104567183A (en) * | 2014-12-31 | 2015-04-29 | 合肥美的电冰箱有限公司 | Refrigerator chamber and refrigerator |
| CN208541805U (en) * | 2016-08-01 | 2019-02-26 | 三菱电机株式会社 | Fridge-freezer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106679265B (en) | A kind of refrigerator and its control method | |
| CN108286855A (en) | Refrigerator | |
| JP2011231956A (en) | Refrigerator-freezer | |
| CN107270622A (en) | Refrigerating device | |
| CN112665301A (en) | Temperature compensation method and device for refrigerator temperature-changing chamber, controller and refrigerator | |
| CN108332478A (en) | Refrigerator | |
| CN111076479A (en) | Household refrigeration equipment for realizing ultralow-temperature storage by using non-azeotropic mixed refrigerant | |
| JP2013019598A (en) | Refrigerator | |
| JP2023528838A (en) | Refrigerator defrosting control method | |
| CN103115467A (en) | Double refrigerating system for refrigerator | |
| CN109780776B (en) | Refrigerator and control method thereof | |
| CN208567249U (en) | A kind of household low temperature refrigerator | |
| CN113915897A (en) | A kind of refrigerator | |
| CN201152662Y (en) | Temperature balancing apparatus of refrigerator and directly cooling refrigerator equipped with the same | |
| CN210980490U (en) | Energy storage type air-cooling frost-free refrigerator | |
| CN212362551U (en) | Household refrigeration equipment for realizing ultralow temperature storage by using non-azeotropic mixed refrigerant | |
| CN113465259B (en) | Refrigeration equipment, control method and control system of refrigeration equipment and storage medium | |
| CN209910245U (en) | Product preservation refrigeration house based on screw type water chiller | |
| JP2005155932A (en) | Refrigeration air conditioning system using snow | |
| CN216282243U (en) | Sensible heat defrosting system for refrigeration house | |
| WO2020175824A1 (en) | Method for controlling refrigerator | |
| CN108955032A (en) | A kind of low-temperature quick-freezing refrigerator | |
| CN216448443U (en) | Refrigerator and air conditioner integrated machine | |
| CN221279694U (en) | Refrigerating system and refrigerator | |
| CN111435052A (en) | Condensation heat recovery system and refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220111 |