CN117366974A - Refrigerating and freezing device - Google Patents

Refrigerating and freezing device Download PDF

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Publication number
CN117366974A
CN117366974A CN202210772184.8A CN202210772184A CN117366974A CN 117366974 A CN117366974 A CN 117366974A CN 202210772184 A CN202210772184 A CN 202210772184A CN 117366974 A CN117366974 A CN 117366974A
Authority
CN
China
Prior art keywords
compressor
fan
heating unit
operating state
refrigerating
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
Application number
CN202210772184.8A
Other languages
Chinese (zh)
Inventor
刘勇豪
姬立胜
陈建全
韩志强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Refrigerator Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Refrigerator Co Ltd
Priority to CN202210772184.8A priority Critical patent/CN117366974A/en
Priority to PCT/CN2023/102853 priority patent/WO2024002090A1/en
Publication of CN117366974A publication Critical patent/CN117366974A/en
Pending legal-status Critical Current

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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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20136—Forced ventilation, e.g. by fans

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The invention provides a refrigerating and freezing device. The refrigerating and freezing apparatus includes a cabinet defining a press chamber and at least one storage compartment, a refrigerating system for providing cold to the at least one storage compartment, a heating unit for generating heat for heating an object to be processed in one storage compartment or a part of one storage compartment, and a first fan. The first fan is provided in the press chamber together with a compressor of the refrigeration system and a part of the heating unit. Under the condition that the compressor and the heating unit are in working states, the first fan is configured to start or stop according to the surface temperature of the compressor, the containing groove is not required to be formed in other positions of the box body, the production cost of the box body is reduced, the heat dissipation efficiency of the heating device is improved by utilizing the large space of the press chamber, the overheat of the press chamber is prevented, the service life of the heating device is guaranteed, and the working load of the compressor is reduced.

Description

Refrigerating and freezing device
Technical Field
The invention relates to the field of refrigeration or cooling, in particular to a refrigeration and freezing device with a heating unit.
Background
Some refrigeration and freezing devices with heating units exist in the prior art that can quickly defrost food or reduce condensation and frost. However, when the heating unit is operated, some electric devices of the heating unit generate a large amount of heat, which affects not only the utilization of the surrounding environment but also the defrosting effect, the continuous operation time of the heating unit, and the service life of the heating electric devices.
In view of the comprehensive consideration, there is a need in design for a refrigeration and freezing apparatus that can achieve efficient heat dissipation of a heat generating electric device and that is low in production cost.
Disclosure of Invention
It is an object of the present invention to overcome at least one of the technical drawbacks of the prior art and to provide a refrigerating and freezing apparatus having a heating unit which can achieve an efficient heat dissipation of the heat generating devices of the heating unit.
It is a further object of the present invention to avoid frequent activation of the first fan or the second fan.
It is a further object of the invention to reduce the production costs.
In particular, the present invention provides a refrigeration and freezer comprising:
a housing defining a press chamber and at least one storage compartment;
the refrigeration system is used for providing cold energy for the at least one storage compartment;
a heating unit configured to generate heat for heating an object to be treated in one of the storage compartments or a part of one of the storage compartments; and
a first fan provided in the press chamber together with a compressor of the refrigeration system and a part of the heating unit; wherein,
the first fan is configured to start or stop according to a surface temperature of the compressor in a case where both the compressor and the heating unit are in an operating state.
Optionally, in the case where both the compressor and the heating unit are in operation, the first fan is configured to start when the surface temperature of the compressor is greater than a first temperature threshold and stop when it is less than a second temperature threshold; wherein,
the first temperature threshold is greater than the second temperature threshold.
Optionally, the first fan is configured to remain on with the compressor in an active state and the heating unit in an inactive state.
Optionally, the refrigeration and freezing device further comprises:
a second fan provided in the press chamber and configured to be started when a surface temperature of the compressor is greater than a third temperature threshold and stopped when the surface temperature is less than a fourth temperature threshold in a state in which the compressor is in an operating state and the heating unit is in a non-operating state; wherein,
the third temperature threshold is greater than the fourth temperature threshold.
Optionally, in the case where the heating unit is in an operating state and the compressor is in a non-operating state, the first fan is configured to start or stop according to a rate of temperature rise of the portion.
Optionally, in a case where the heating unit is in an operating state and the compressor is in a non-operating state, the first fan is configured to be started when a rate of temperature rise of the portion is greater than a preset rate threshold, and stopped when the rate threshold is less than or equal to the rate threshold.
Optionally, the refrigeration and freezing device further comprises:
a first sensor configured to sense a surface temperature of the compressor once every first time interval while the compressor is in an operating state; and
a second sensor configured to sense a surface temperature of the portion every second time interval in a case where the heating unit is in an operating state and the compressor is in a non-operating state, thereby obtaining the temperature rise rate; wherein,
the second time interval is less than the first time interval.
Optionally, the refrigeration and freezing device further comprises:
and a second fan provided to the press chamber and configured to remain on in a state in which the heating unit is in an operating state.
Optionally, the first fan is disposed on a side of the compressor remote from the portion and causes air to flow from the compressor to the portion; and is also provided with
The second fan is disposed on a side of the portion remote from the compressor and causes air to flow from the compressor to the portion.
Optionally, the portion comprises:
a signal source configured to generate an electromagnetic wave signal;
a power amplifier which is arranged to be electrically connected with the signal source and to increase the power of the electromagnetic wave signal; and
a power module arranged to provide electrical energy to the signal source and the power amplifier; wherein,
the power amplifier is arranged above the power module and is spaced from the power module.
According to the refrigerating and freezing device, the heating device of the heating unit is arranged in the press chamber, and the first fan is started or stopped according to the surface temperature of the compressor under the condition that the compressor and the heating unit are in a working state, so that a containing groove does not need to be formed in other positions of the box body, the production cost of the box body is reduced, the heat dissipation efficiency of the heating device is improved by utilizing a large space of the press chamber, the overheat of the press chamber is prevented, the service life of the heating device is ensured, and the working load of the compressor is reduced.
Further, according to the invention, the first fan is kept on or stopped according to the surface temperature of the compressor when the compressor is in the working state and the heating unit is in the non-working state, the second fan is kept on or stopped according to the temperature rise rate of the heating device of the heating unit when the heating unit is in the working state and the compressor is in the non-working state, and the first fan is started or stopped according to the temperature rise rate of the heating device of the heating unit, so that the heat dissipation efficiency is ensured, the first fan or the second fan is prevented from being frequently started, the service life of the fan is prolonged, and the fan noise is reduced.
Further, the first fan is arranged on one side of the compressor far away from the heating device, the second fan is arranged on one side of the heating device far away from the compressor, and air flows from the compressor to the heating device, so that the technical prejudice that the heating device of the heating unit is far away from other devices as much as possible or low-temperature air flows through the heating device of the heating unit and then flows to other devices in the prior art is overcome, the influence on the original devices of the press chamber is reduced, the layout of the original devices of the press chamber is basically not required to be changed, and the production cost is reduced.
The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
FIG. 1 is a schematic cross-sectional view of a refrigerated freezer according to one embodiment of the invention;
FIG. 2 is a schematic rear view of the refrigeration and freezer of FIG. 1 with the press chamber back cover plate removed to show the arrangement of components within the press chamber;
FIG. 3 is a schematic isometric view of the refrigeration and freezer of FIG. 1, looking back and forth;
fig. 4 is a schematic block diagram of an electronic control system of a refrigerating and freezing apparatus according to an embodiment of the present invention.
Fig. 5 is a schematic flow chart of a control method for a refrigerating and freezing apparatus according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic cross-sectional view of a refrigerated chiller 100 according to one embodiment of the present invention; fig. 2 is a schematic rear view of the refrigeration and freezer 100 of fig. 1 with the rear cover plate of the press chamber 113 removed to show the layout of the devices within the press chamber 113. Referring to fig. 1 and 2, the refrigerating and freezing apparatus 100 may include a cabinet 110 defining a press chamber 113 and at least one storage compartment, at least one door for opening and closing the at least one storage compartment, a refrigerating system, and a heating unit. In the present invention, at least one is one, two or more than two.
In the illustrated embodiment, the storage compartments defined by the case 110 may include a first compartment 111 and a second compartment 112. The set temperature of the first compartment 111 may be less than the set temperature of the second compartment 112, e.g., the first compartment 111 is a freezer compartment and the second compartment 112 is a refrigerator compartment.
The refrigeration system may include a compressor 121, a condenser 122 in communication with a refrigerant outlet of the compressor 121, at least one throttling element in communication with the refrigerant outlet of the condenser 122, and at least one evaporator in communication with the refrigerant outlet of the one throttling element to provide refrigeration to the at least one storage compartment.
In the embodiment shown in fig. 1, the refrigerating and freezing apparatus 100 is provided with only one evaporator 124, and the cooling capacity is simultaneously supplied to the first compartment 111 and the second compartment 112 by the cooling fan 125.
The refrigerating and freezing apparatus 100 may also be provided with one evaporator in each of the first compartment 111 and the second compartment 112 to separately supply cold to the first compartment 111 and the second compartment 112.
The heating unit may be arranged to generate heat for heating the object to be treated in one of the storage compartments or locally in one of the storage compartments. In the present invention, the heating unit may be a unit having an electromagnetic wave generation system.
Illustratively, the heating unit may include a cylinder 131 disposed in one storage compartment, and a door 132 to open and close a take-and-place opening of the cylinder 131. The electromagnetic wave generating system is configured to generate electromagnetic waves within the cylinder 131.
The electromagnetic wave generating system may also be configured to generate electromagnetic waves throughout the storage compartment.
In particular, the electromagnetic wave generation system may include a signal source 133, a power amplifier 134, a radiating element, and a power module 135.
The signal source 133 may be configured to generate an electromagnetic wave signal. The power amplifier 134 may be provided to be electrically connected to the signal source 133 and increase the power of the electromagnetic wave signal.
The radiating element may be provided in electrical connection with the power amplifier 134 and radiate the amplified electromagnetic waves to the surrounding environment.
The power module 135 may be configured to supply power to the signal source 133 and the power amplifier 134.
The bottom of the case 110 may define a press chamber 113. A compressor 121, a portion of the heating unit (particularly, a heat generating device) may be provided to the press chamber 113 to facilitate heat dissipation.
Specifically, a signal source 133, a power amplifier 134, and a power module 135 of the electromagnetic wave generating system may be provided in the press chamber 113.
In some embodiments, the power amplifier 134 may be disposed above the power module 135 with a space from the power module 135 to facilitate electrical connection of the power amplifier 134 to the power module 135 and to facilitate ambient air flow between the power amplifier 134 and the power module 135, and to improve the heat dissipation efficiency of the power amplifier 134.
The refrigerator-freezer 100 may further include heat dissipating fins 143. The heat dissipation fins 143 may be provided in thermal connection with the upper surface of the power amplifier 134 to further improve the heat dissipation efficiency of the power amplifier 134.
The refrigerator-freezer 100 may further include a first fan 141. The first fan 141 may be disposed in the press chamber 113 to promote air flow of the press chamber 113 and improve heat dissipation efficiency.
In particular, in the case where both the compressor 121 and the heating unit are in an operating state, the first fan 141 may be configured to be started or stopped according to the surface temperature of the compressor 121 to prevent the overheating of the press chamber 113, secure the service life of the heat generating device, and reduce the work load of the compressor 121.
Specifically, in the case where the compressor 121 and the heating unit are both in the operating state, the first fan 141 may be configured such that the surface temperature of the compressor 121 is greater than the first temperature threshold T 1 When started and is smaller than a second temperature threshold T 2 And stopping at this time, so as to avoid frequent start of the first fan 141 and reduce energy consumption while ensuring the heat dissipation effect. Wherein the first temperature threshold T 1 May be greater than the second temperature threshold T 2 。
In some embodiments, the refrigerator-freezer 100 can further include a second fan 142. The second fan 142 may be disposed in the press chamber 113 to further improve heat dissipation efficiency.
In some further embodiments, the second fan 142 may be configured to remain on while the heating unit is in operation to avoid overheating of the power amplifier 134.
In some further embodiments, the first fan 141 may be disposed at a side of the compressor 121 remote from the power amplifier 134, and the second fan 142 may be disposed at a side of the power amplifier 134 remote from the compressor 121, such that the first fan 141 and the second fan 142 respectively increase heat dissipation efficiency of the compressor 121 and the power amplifier 134 when operated alone, and increase a rate of air flow in the press chamber 113 as a whole when operated simultaneously.
The first fan 141 and the second fan 142 may each be configured to facilitate air flow from the compressor 121 to the power amplifier 134 to reduce layout changes of the original components of the press chamber 113.
Fig. 3 is a schematic isometric view of the refrigeration and freezer 100 of fig. 1, viewed from the rear and forward. Referring to fig. 3, the lateral side walls of the case 110 remote from the power amplifier 134, and the portion of the back cover plate of the press chamber 113 remote from the power amplifier 134 may be provided with an air intake 114. The lateral side wall of the case 110 near the power amplifier 134 may be provided with an air outlet 115.
In some embodiments, the portion of the back cover plate of the press chamber 113 between the second fan 142 and the projection of the compressor 121 on the back cover plate may be vented 116 to function as an air outlet when only the first fan 141 of the first fan 141 and the second fan 142 is activated; only the second fan 142 is at least partially used as an air inlet when started, so that the heat dissipation efficiency is improved.
In still further embodiments, the first fan 141 and the second fan 142 may also be disposed between the compressor 121 and the power amplifier 134.
In some embodiments, with the compressor 121 in an active state and the heating unit in an inactive state, the first fan 141 may be configured to remain on to avoid overheating of the compressor 121.
In the case where the compressor 121 is in an operating state and the heating unit is in a non-operating state, the second fan 142 may be configured to be started when the surface temperature of the compressor 121 is greater than the third temperature threshold and stopped when it is less than the fourth temperature threshold, so as to prevent frequent start of the second fan 142 while ensuring a heat dissipation effect, and reduce power consumption. Wherein the third temperature threshold may be greater than the fourth temperature threshold. The third temperature threshold value can be equal to the first temperature threshold value T 1 The same; the fourth temperature threshold value can be equal to the second temperature threshold value T 2 The same applies.
In some embodiments, with the heating unit in an operating state and the compressor 121 in a non-operating state, the first fan 141 may be configured to start or stop according to the rate of temperature rise of the power amplifier 134. The rate of temperature rise of the power amplifier 134 may be the ratio of the difference between the current sensed surface temperature of the power amplifier 134 and the previous sensed surface temperature of the power amplifier 134 to time.
Specifically, in the case where the heating unit is in an operating state and the compressor 121 is in a non-operating state, the first fan 141 may be configured to be started when the temperature rise rate of the power amplifier 134 is greater than a preset rate threshold S and stopped when the temperature rise rate is less than or equal to the rate threshold S, so as to reduce the power consumption while ensuring the heat dissipation efficiency of the power amplifier 134.
The refrigerator-freezer 100 can also include a first sensor 161 and a second sensor 162. The first sensor 161 may be configured to sense a surface temperature of the compressor 121 every first time interval with the compressor 121 in an operating state.
The second sensor 162 is configured to sense the surface temperature of the power amplifier 134 every second time interval with the heating unit in an operating state and the compressor 121 in a non-operating state, thereby obtaining the rate of temperature rise of the power amplifier 134. Wherein the second time interval may be less than the first time interval to avoid overheating of the power amplifier 134.
Fig. 4 is a schematic block diagram of an electronic control system of the refrigerating and freezing apparatus 100 according to an embodiment of the present invention. Referring to fig. 4, the refrigeration and chiller 100 may also include a controller 150. The controller 150 may be disposed to be electrically connected to the signal source 133, the power amplifier 134, the power module 135, the first and second fans 141 and 142, and the first and second sensors 161 and 162 to implement the control method of the embodiment of the present invention.
Fig. 5 is a schematic flow chart of a control method for the refrigerating and freezing apparatus 100 according to an embodiment of the present invention (where "Y" means "yes"; "N" means "no"). Referring to fig. 5, the control method for the refrigerating and freezing apparatus 100 of the present invention may include the steps of:
step S502: it is determined whether the power amplifier 134 is in an operating state. If yes, go to step S504; if not, go to step S524.
Step S504: the second fan 142 is controlled to remain on.
Step S506: it is determined whether the compressor 121 is in an operating state. If yes, go to step S508; if not, go to step S516.
Step S508: determining whether the surface temperature of the compressor 121 is greater than a first temperature threshold T 1 . If yes, go to step S510; if not, repeating step S508.
Step S510: the first fan 141 is controlled to be started.
Step S512: determining whether the surface temperature of the compressor 121 is less than a second temperature thresholdValue T 2 . If yes, go to step S514; if not, repeat step S512.
Step S514: the first fan 141 is controlled to stop. Step S522 is performed.
Step S516: it is determined whether the surface temperature rise rate of the power amplifier 134 is greater than a preset rate threshold S. If yes, go to step S518; if not, go to step S520.
Step S518: the first fan 141 is controlled to be started. Returning to step S516.
Step S520: the first fan 141 is controlled to stop.
Step S522: it is determined whether the power amplifier 134 is in a non-operating state. If yes, go to step S524; if not, return to step S506.
Step S524: it is determined whether the compressor 121 is in an operating state. If yes, go to step S526; if not, go to step S536.
Step S526: the first fan 141 is controlled to remain on.
Step S528: determining whether the surface temperature of the compressor 121 is greater than a first temperature threshold T 1 . If yes, go to step S530; if not, repeat step S528.
Step S530: the second fan 142 is controlled to be started.
Step S532: determining whether the surface temperature of the compressor 121 is less than the second temperature threshold T 2 . If yes, go to step S534; if not, repeat step S532.
Step S534: the second fan 142 is controlled to stop. Step S524 is performed.
Step S536: the first fan 141 and the second fan 142 are controlled to stop.
By now 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 herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. A refrigerated chiller comprising:
a housing defining a press chamber and at least one storage compartment;
the refrigeration system is used for providing cold energy for the at least one storage compartment;
a heating unit configured to generate heat for heating an object to be treated in one of the storage compartments or a part of one of the storage compartments; and
a first fan provided in the press chamber together with a compressor of the refrigeration system and a part of the heating unit; wherein,
the first fan is configured to start or stop according to a surface temperature of the compressor in a case where both the compressor and the heating unit are in an operating state.
2. The refrigerating and freezing apparatus according to claim 1, wherein,
in the case where both the compressor and the heating unit are in operation, the first fan is configured to start when the surface temperature of the compressor is greater than a first temperature threshold and stop when it is less than a second temperature threshold; wherein,
the first temperature threshold is greater than the second temperature threshold.
3. The refrigerating and freezing apparatus according to claim 1, wherein,
the first fan is configured to remain on with the compressor in an operational state and the heating unit in a non-operational state.
4. The refrigeration and freezer of claim 3, further comprising:
a second fan provided in the press chamber and configured to be started when a surface temperature of the compressor is greater than a third temperature threshold and stopped when the surface temperature is less than a fourth temperature threshold in a state in which the compressor is in an operating state and the heating unit is in a non-operating state; wherein,
the third temperature threshold is greater than the fourth temperature threshold.
5. The refrigerating and freezing apparatus according to claim 1, wherein,
the first fan is configured to start or stop according to a rate of temperature rise of the portion with the heating unit in an operating state and the compressor in a non-operating state.
6. The refrigerating and freezing apparatus according to claim 5, wherein,
and under the condition that the heating unit is in an operating state and the compressor is in a non-operating state, the first fan is configured to be started when the temperature rise rate of the part is greater than a preset rate threshold value and stopped when the temperature rise rate of the part is less than or equal to the rate threshold value.
7. The refrigeration and freezer of claim 6, further comprising:
a first sensor configured to sense a surface temperature of the compressor once every first time interval while the compressor is in an operating state; and
a second sensor configured to sense a surface temperature of the portion every second time interval in a case where the heating unit is in an operating state and the compressor is in a non-operating state, thereby obtaining the temperature rise rate; wherein,
the second time interval is less than the first time interval.
8. The refrigeration and freezer of claim 1, further comprising:
and a second fan provided to the press chamber and configured to remain on in a state in which the heating unit is in an operating state.
9. The refrigerating and freezing apparatus according to claim 4 or 8, wherein,
the first fan is arranged on one side of the compressor away from the part and promotes air to flow from the compressor to the part; and is also provided with
The second fan is disposed on a side of the portion remote from the compressor and causes air to flow from the compressor to the portion.
10. The refrigeration and freezer of claim 9, wherein the portion comprises:
a signal source configured to generate an electromagnetic wave signal;
a power amplifier which is arranged to be electrically connected with the signal source and to increase the power of the electromagnetic wave signal; and
a power module arranged to provide electrical energy to the signal source and the power amplifier; wherein,
the power amplifier is arranged above the power module and is spaced from the power module.
CN202210772184.8A 2022-06-30 2022-06-30 Refrigerating and freezing device Pending CN117366974A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202210772184.8A CN117366974A (en) 2022-06-30 2022-06-30 Refrigerating and freezing device
PCT/CN2023/102853 WO2024002090A1 (en) 2022-06-30 2023-06-27 Refrigeration and freezing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210772184.8A CN117366974A (en) 2022-06-30 2022-06-30 Refrigerating and freezing device

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