CN113375396A - Refrigerator and temperature regulation control method - Google Patents

Refrigerator and temperature regulation control method Download PDF

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Publication number
CN113375396A
CN113375396A CN202110565067.XA CN202110565067A CN113375396A CN 113375396 A CN113375396 A CN 113375396A CN 202110565067 A CN202110565067 A CN 202110565067A CN 113375396 A CN113375396 A CN 113375396A
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China
Prior art keywords
temperature
air
grid
assembly
group
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Granted
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CN202110565067.XA
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Chinese (zh)
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CN113375396B (en
Inventor
齐阳明
唐雄刚
章小波
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Shenzhen Zhilai Science and Technology Co Ltd
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Shenzhen Zhilai Science and Technology Co Ltd
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Priority to CN202110565067.XA priority Critical patent/CN113375396B/en
Publication of CN113375396A publication Critical patent/CN113375396A/en
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Publication of CN113375396B publication Critical patent/CN113375396B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • 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
    • 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
    • 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
    • F25D2600/00—Control issues
    • F25D2600/06—Controlling according to a predetermined profile
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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  • 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 relates to a refrigerator and a temperature regulation control method, wherein the refrigerator comprises the following steps: the condensation assembly is connected with the evaporator assembly, the condensation assembly is used for providing refrigerant for the evaporator assembly, and the evaporator assembly is used for converting the refrigerant provided by the condensation assembly into cold air; the cabinet body is provided with an air duct communicated with the evaporator assembly and at least one group of grid groups communicated with the air duct, each grid group comprises a plurality of grids, and an air quantity adjusting mechanism is arranged at the position, communicated with the air duct, of each grid; the air quantity adjusting mechanism is used for adjusting the quantity of cold air entering each grid from the air duct, so that the quantity of cold air of the same grid in the grid group is the same. The refrigerator can realize the refrigeration function or the freezing function of the same group of grid groups. When the grid group is more, one refrigerator can have the refrigerating and freezing functions.

Description

Refrigerator and temperature regulation control method
Technical Field
The invention relates to the technical field of refrigeration and freezing, in particular to a refrigerator and a temperature regulation control method.
Background
The multi-row commercial refrigerated cabinets or freezers on the market generally have only a single refrigerating or freezing function, and cannot realize the refrigerating and freezing functions at the same time. The independent refrigerating cabinet is only suitable for placing fresh products such as fruits and vegetables and is not suitable for storing and placing meat and seafood products, the independent refrigerating cabinet is only suitable for placing frozen products, the fruits and vegetables are easy to be frozen at low temperature, and diversified requirements of users cannot be well met.
In addition, the existing commercial refrigerator in the market has the overhead refrigerating unit, and the cabinet body is high, so that the refrigerating effect in the cabinet is not uniform, the upper and lower temperature difference is large, the refrigerating speed is slow, and the refrigerating performance is influenced.
Disclosure of Invention
The invention provides a refrigerator and a temperature regulation control method, which achieve the purpose of keeping the same amount of cold air for the grids in the same grid group by arranging an air volume regulation mechanism.
A refrigerator comprises a cabinet body, a condensation assembly and an evaporator assembly, wherein the condensation assembly and the evaporator assembly are mounted on the cabinet body, the condensation assembly is connected with the evaporator assembly, the condensation assembly is used for providing a refrigerant for the evaporator assembly, and the evaporator assembly is used for converting the refrigerant provided by the condensation assembly into cold air;
the cabinet body is provided with an air duct communicated with the evaporator assembly and at least one group of grid groups communicated with the air duct, each grid group comprises a plurality of grids, and an air quantity adjusting mechanism is arranged at the position, communicated with the air duct, of each grid;
the air quantity adjusting mechanism is used for adjusting the quantity of cold air entering each grid from the air duct, so that the quantity of cold air of the grids in the same grid group is the same.
The air quantity adjusting mechanism is arranged at the position, communicated with the air channel, of each grid opening of the refrigerator, so that the quantity of the cold air entering each grid opening from the air channel is adjusted, and the quantity of the cold air of the grid openings in the same grid opening group is the same. The refrigerator can realize the refrigeration function or the freezing function of the same group of grid groups. When the cell group is more, then can make some cell groups regard as cold-stored, some cell groups regard as freezing to can realize that a freezer can realize having cold-stored and freezing function simultaneously, satisfy user's diversified individualized demand, satisfy the condition of depositing of all fresh products simultaneously. In addition, the air duct design in the refrigerator has the advantages of high refrigerating speed and good refrigerating effect, and can ensure that the grids in each grid group are uniformly refrigerated and the temperature difference between the grids in the same grid group is kept in a very small range.
In one embodiment, the air duct includes an air inlet duct and an air return duct, the grid is formed with air inlet holes and air return holes, the air inlet holes are communicated with the air inlet duct, the air return holes are communicated with the air return duct, and the air volume adjusting mechanism is disposed on the periphery of the air inlet holes on the grid.
In one embodiment, the air volume adjusting mechanism comprises an air deflector, the air deflector is used for guiding cold air in the air inlet duct into the corresponding grid, and the opening angle and the size of the air deflector are adjustable.
In one embodiment, the cabinet body is further provided with an air inlet and an air return inlet, the air inlet is communicated with the evaporator assembly and the air inlet duct, and the air return inlet is communicated with the evaporator assembly and the air return duct.
In one embodiment, the refrigerator further comprises a control unit and a temperature detection assembly arranged in any cell group, wherein the evaporator assembly, the condensation assembly and the temperature detection assembly are respectively connected with the control unit;
the temperature detection assembly is used for detecting the temperature value of the grid group where the temperature detection assembly is located in real time and sending the detected temperature value to the control unit;
the control unit is used for receiving the temperature value detected by the temperature detection assembly and judging whether the received temperature value is within a preset temperature range; if the received temperature value is within a preset temperature range or lower than the lower limit of the preset temperature range, closing the condensation assembly and the evaporator assembly corresponding to the grid group; and if the received temperature value exceeds the upper limit of the preset temperature range, starting the condensation assembly and the evaporator assembly corresponding to the grid group until the temperature value of the grid group is within the preset temperature range.
In one embodiment, the preset temperature range includes a preset refrigeration temperature range and/or a preset freezing temperature range.
In one embodiment, the refrigerator further comprises a flow regulating valve connected between the condensing assembly and the evaporator assembly, the flow regulating valve being connected with the control unit;
the flow regulating valve is used for regulating the amount of refrigerant provided to the evaporator assembly by the condensing assembly, so as to control the amount of cold air converted by the evaporator assembly;
if the temperature value received by the control unit is within a preset temperature range or lower than the lower limit of the preset temperature range, the flow regulating valve is closed; and if the temperature value received by the control unit exceeds the upper limit of the preset temperature range, the flow regulating valve is opened.
In one embodiment, the evaporator assemblies are provided in plurality, the air ducts are provided in plurality, the evaporator assemblies and the air ducts are arranged in one-to-one correspondence, each air duct is communicated with at least one grid set, and the air quantity adjusting mechanism is adjusted to enable the air quantity in the grids of different grid sets to be different;
the temperature detection assembly is provided with one or more, and the temperature detection assembly can be arranged in any grid group.
In one embodiment, the plurality of evaporator assemblies includes a first evaporator assembly and a second evaporator assembly, and the plurality of air ducts includes a first air duct in communication with the first evaporator assembly and a second air duct in communication with the second evaporator assembly.
In one embodiment, the cell groups are provided with three groups, which are respectively a first cell group, a second cell group and a third cell group, the first cell group and the second cell group are communicated with the first air duct, the third cell group is communicated with the second air duct, and the temperature detection assemblies can be arranged in the first cell group, the second cell group and the third cell group.
A temperature regulation control method is applied to the refrigerator, and the two evaporator assemblies are respectively a first evaporator assembly and a second evaporator assembly;
the two air channels are respectively a first air channel and a second air channel;
the grid group is provided with three groups, namely a first grid group, a second grid group and a third grid group;
the first air channel is communicated between the first grid group and the first evaporator assembly, the second grid group and the first evaporator assembly, and the first air channel is communicated between the third grid group and the second evaporator assembly;
the temperature regulation control method comprises the following steps:
detecting the temperature of the first cell group and simultaneously detecting the temperature of the third cell group;
judging whether the temperature of the first grid group is greater than a first preset temperature or not and whether the temperature of the third grid group is greater than a second preset temperature or not; if the temperature of the first grid group is higher than a first preset temperature, the compressor and the first evaporator assembly are started; if the temperature of the third grid group is higher than a second preset temperature, the compressor and the second evaporator assembly are started; if the temperature of the first grid group is higher than a first preset temperature and the temperature of the third grid group is higher than a second preset temperature, the compressor, the first evaporator assembly and the second evaporator assembly are all started;
judging whether the temperature of the first grid group is lower than a third preset temperature or not, and whether the temperature of the third grid group is lower than a fourth preset temperature or not; if the temperature of the first grid group is lower than a third preset temperature, the first evaporator assembly is closed; if the temperature of the third grid group is lower than a fourth preset temperature, the second evaporator assembly is closed; if the temperature of the first grid group is lower than a third preset temperature and the temperature of the third grid group is lower than a fourth preset temperature, the compressor, the first evaporator assembly and the second evaporator assembly are all closed.
According to the temperature regulation control method, when refrigeration is needed, the refrigerant enters the first evaporator body and the second evaporator body at the same time, and the refrigeration of the three groups of grid groups is realized by controlling the opening and closing of the first evaporator fan and the second evaporator fan.
Drawings
Fig. 1 is a schematic structural diagram of a refrigerator according to a first embodiment of the present invention;
fig. 2 is a schematic sectional view of a refrigerator according to a first embodiment of the present invention, taken along a height direction;
fig. 3 is a schematic cross-sectional view of a refrigerator according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a condensing assembly and an evaporator assembly of a refrigerator according to a first embodiment of the present invention;
fig. 5 is a top view of a cabinet of a refrigerator according to a first embodiment of the present invention;
fig. 6 is a logic diagram of temperature control of a refrigerator according to a first embodiment of the present invention;
fig. 7 is a logic diagram of temperature control of a refrigerator according to a second embodiment of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As shown in fig. 1 to 5, a refrigerator according to an embodiment of the present invention includes: the cabinet body 1 and install condensation subassembly 2 and evaporator assembly 3 on the cabinet body 1, condensation subassembly 2 with evaporator assembly 3 meets, condensation subassembly 2 be used for to evaporator assembly 3 provides the refrigerant, evaporator assembly 3 is used for with the refrigerant that condensation subassembly 2 provided converts into air conditioning.
The cabinet body 1 is provided with an air duct 10 communicated with the evaporator assembly 3 and at least one group of grid groups 11 communicated with the air duct 10, each grid group 11 comprises a plurality of grids 111, and each grid 111 is provided with an air volume adjusting mechanism 4 at a position communicated with the air duct 10.
The air volume adjusting mechanism 4 is used for adjusting the amount of cold air entering each of the cells 111 from the air duct 10 so that the amount of cold air in the cells 111 in the same cell group 11 is the same.
In the refrigerator, an air volume adjusting mechanism 4 is arranged at a position on each grid 111 communicated with the air duct 10 to adjust the amount of cold air entering each grid 111 from the air duct 10, so that the amount of cold air of the grids 111 in the same grid group 11 is the same. The refrigerator can realize the refrigerating function or the freezing function of the same group of the grid groups 11. When the cell group 11 is more, then can make part the cell group 11 is as cold-stored, part the cell group 11 is as freezing to can make a freezer can realize having cold-stored and freezing function simultaneously, satisfy user's diversified individualized demand, satisfy the condition of depositing of all fresh products simultaneously. In addition, the design of the air duct 10 in the refrigerator not only has high refrigerating speed and good refrigerating effect, but also can make the refrigerating of the grids 111 in each grid group 11 uniform, and can keep the temperature difference between the grids 111 in the same grid group 11 in a small range.
In one embodiment, such as the embodiment shown in fig. 1-5, the set of cells 11 is comprised of a same column of cells 111. In other embodiments not shown, the set of cells may also consist of the same row of cells, or take other forms of composition.
In one embodiment, as shown in fig. 1, the wind tunnel 10 includes an air inlet duct and an air return duct, the compartment 111 is formed with air inlet holes 1111 and air return holes 1112, the air inlet holes 1111 communicate with the air inlet duct, the air return holes 1112 communicate with the air return duct, and the air volume adjusting mechanism 4 is disposed on the compartment 111 on the side of the air inlet holes 1111.
It will be appreciated that the refrigerator of the present invention will comprise two cycles: one is the phase change circulation of the refrigerant between the refrigeration modules formed by the condensation component 2 and the evaporator component 3 to generate the cold quantity required by refrigeration and temperature reduction; the other is heat exchange air circulation of cold air in an air returning channel formed by the air duct 10 and the grid openings 111, so as to complete the refrigeration and cooling functions of each grid opening 111 in the cabinet body 1.
Further, as shown in fig. 5, the cabinet body 1 is further provided with an air inlet 101 and an air return port 102, the air inlet 101 communicates the evaporator assembly 3 with the air inlet duct, and the air return port communicates the evaporator assembly 3 with the air return duct.
The evaporator assembly 3 is connected with the cabinet body 1 through the air inlet 101 and the air return opening 102, an air inlet duct is arranged below the air inlet 101 in the cabinet body 1, an air return duct is arranged below the air return opening 102, and then the air inlet duct and the air return duct are respectively connected with the inner cavity of the grid opening 111 through the air inlet hole 1111 and the air return hole 1112. The evaporator assembly 3 circulates the cool air in the return air channel in the cabinet 1, and the cool air can enter the compartment 111 and perform cooling and cooling by circulating heat exchange in the compartment 111 through the air inlet 1111 and the air return 1112 arranged on the compartment 111.
Specifically, the cold air generated by the evaporator assembly 3 enters the compartment 111 through the air inlet 101, the air inlet duct and the air inlet hole 1111 in sequence, and the raw air in the compartment 111 returns to the evaporator assembly 3 through the air return hole 1112, the air return duct and the air return opening 102 in sequence.
In one embodiment, as shown in fig. 2, the air volume adjusting mechanism 4 includes an air guiding plate, the air guiding plate is used for guiding the cold air in the air inlet duct 10 into the corresponding grid 111, and the opening angle and size of the air guiding plate are adjustable.
The air volume adjusting mechanism 4 is arranged on the peripheral side of the air inlet 1111 on the grid opening 111, so that cold air entering the same grid opening 111 of the grid opening group 11 is uniform, each grid opening 111 in the same grid opening group 11 is uniformly refrigerated, and the temperature difference is small.
By adjusting the opening angle and the size of the air deflector, cold air entering the cell openings 111 of the same cell opening group 11 is uniform as much as possible, so that the temperature difference of the cell openings 111 of the same cell opening group 11 can be ensured to be small, and the cell openings 111 of the same cell opening group 11 can be uniformly refrigerated. It can be understood that, on the premise that the size of the air deflector is kept unchanged, the larger the opening angle of the air deflector, the more cold air enters the cell 111 and the lower the temperature, and conversely, the less cold air enters the cell 111 and the higher the temperature. On the premise that the opening angle of the air guide plate is not changed, the larger the size of the air guide plate is, the more cold air enters the cell 111 and the lower the temperature is, and on the contrary, the less cold air enters the cell 111 and the higher the temperature is.
In one embodiment, as shown in fig. 3 and 4, the condensing assembly 2 includes a compressor 21 and a condenser fan 22.
The evaporator assembly 3 comprises an evaporator body 31, an evaporator fan 32 and a heat preservation shell 33, wherein the evaporator body 31 and the evaporator fan 32 are placed in the heat preservation shell 33, and when the refrigeration module refrigerates, the heat preservation shell 33 can preserve heat of cold energy generated by the evaporator body 31.
The compressor 21 and the condenser fan 22 are connected to the evaporator body 31 through pipes to complete a whole refrigeration cycle when refrigeration is required, the refrigeration principle is a basic refrigeration process, and will not be described in detail herein
In an embodiment, as shown in fig. 1 to 5, when the grid group 11 is more, it can make the evaporator assembly 3 is provided with a plurality of, a plurality of the evaporator assembly 3 all with the condensation assembly 2 meets, simultaneously, the wind channel 10 is provided with a plurality of, a plurality of the evaporator assembly 3 and a plurality of the wind channel 10 one-to-one sets up, each the wind channel 10 all communicates with at least one the grid group 11 adjusts the air volume adjusting mechanism 4 can make with different the cold air volume in the grid 111 of the grid group 11 is different, makes a freezer can realize having cold-stored and freezing function simultaneously, satisfies user's diversified individualized demand, satisfies the condition of depositing of all fresh products simultaneously.
In an embodiment, the freezer also includes the control unit and sets up at arbitrary the temperature-detecting component in the grid group 11, evaporator assembly 3, condensation component 2 reaches the temperature-detecting component respectively with the control unit is connected.
The temperature detection assembly is used for detecting the temperature value of the grid group 11 where the temperature detection assembly is located in real time and sending the detected temperature value to the control unit.
The control unit is used for receiving the temperature value detected by the temperature detection assembly and judging whether the received temperature value is within a preset temperature range. If the received temperature value is within the preset temperature range or lower than the lower limit of the preset temperature range, the condensing assembly and the evaporator assembly corresponding to the cell group are closed, and the cold air is temporarily not provided to the cell 111 of the detected cell group 11. If the received temperature value exceeds the upper limit of the preset temperature range, the condensation component and the evaporator component corresponding to the grid set are started to provide cold air for the detected grid 111 of the grid set 11 until the temperature value of the grid set 11 is within the preset temperature range, and then the condensation component and the evaporator component corresponding to the grid set are closed.
Further, the preset temperature range includes a preset refrigeration temperature range and/or a preset freezing temperature range. It will be appreciated that if the detected cell 111 of the cell group 11 is used as a refrigeration cell, the control unit will be used to detect whether the temperature value in the cell 111 of the detected cell group 11 is within the preset refrigeration temperature range. If the cell 111 of the detected cell group 11 is used as a freezing cell, the control unit is used to detect whether the temperature value in the cell 111 of the detected cell group 11 is within the preset freezing temperature range.
In an embodiment, the temperature detecting component may be installed in any cell 111 of the detected cell group 11, and since the temperature value in the cell 111 of the same cell group 11 is the same, the detected temperature value in the cell 111 is the temperature value of the cell group 11 where it is located. Preferably, the temperature detection component is a temperature sensor.
Further, when the cell groups 11 are provided with a plurality of groups, one or more temperature detection assemblies may be provided, and the temperature detection assemblies may be provided in any of the cell groups 11. That is, the temperature detection member may be provided in at least one of the plurality of cell groups 11. In this embodiment, the installation position of the temperature detection component is not limited at all.
The following description will be given with reference to specific examples.
Example one
Taking the embodiment shown in fig. 1 to 5 as a first embodiment, in the first embodiment, two evaporator assemblies 3 are provided, namely, a first evaporator assembly 3a and a second evaporator assembly 3b, the first evaporator assembly 3a includes a first evaporator body, a first evaporator fan and a first heat-preservation housing, and the second evaporator assembly 3b includes a second evaporator body, a second evaporator fan and a second heat-preservation housing. The air ducts 10 are provided with two air ducts, namely a first air duct 10a communicated with the first evaporator assembly 3a and a second air duct 10b communicated with the second evaporator assembly 3 b. Correspondingly, the air inlets 101 will be provided with two air inlets, which are a first air inlet 101a and a second air inlet 101 b. Two air return openings 102 are provided, namely a first air return opening 102a and a second air return opening 102 b. The first evaporator assembly 3a is correspondingly communicated with the first air duct 10a through the first air inlet 101a and the first air return opening 102a, and the second evaporator assembly 3b is correspondingly communicated with the second air duct 10b through the second air inlet 101b and the second air return opening 102 b.
When the refrigerator needs to refrigerate, the refrigerant coming out of the condensation component 2 can respectively enter two evaporator components 3 (a first evaporator component 3a and a second evaporator component 3b) and also can independently enter one evaporator component 3 (the first evaporator component 3a or the second evaporator component 3b), cold air is generated through phase change, and the generated cold air is sent into the air duct 10 corresponding to the cabinet body 1 under the action of the evaporator fan 32 to refrigerate and exchange heat for each grid 111, so as to complete the refrigeration and cooling process of the grid 111.
Further, the cell group 11 is provided with three groups, which are a first cell group 11a, a second cell group 11b and a third cell group 11c, respectively, the first cell group 11a and the second cell group 11b are communicated with the first air duct 10a, and the third cell group 11c is communicated with the second air duct 10 b.
The first cell group 11a and the second cell group 11b are refrigerating cell groups, and the third cell group 11c is a freezing cell group. The temperature sensor is provided with two, is first temperature sensor and second temperature sensor respectively. Wherein the first temperature sensor is mounted in a cell 111a of the first cell group 11a and the second temperature sensor is mounted in a cell 111c of the third cell group 11 c.
As shown in fig. 6, it is a logic diagram of temperature control of the refrigerator according to the first embodiment. In this embodiment, the upper limit of the preset refrigerating temperature range of the first cell group 11a is set as the first preset temperature T1, and the lower limit thereof is set as the third preset temperature T3. The upper limit of the preset freezing temperature range of the third cell group 11c is a second preset temperature T2, and the lower limit thereof is a fourth preset temperature T4.
When the refrigerator needs to refrigerate, the temperature t1 of the first cell group 11a and the temperature t2 of the third cell group 11c are detected at the same time, the temperature t1 of the first cell group 11a is the temperature sensed by the first temperature sensor, and the temperature t2 of the third cell group 11c is the temperature sensed by the second temperature sensor. If the temperature T1 of the first cell group 11a is higher than the first preset temperature T1 or the temperature T2 of the third cell group 11c is higher than the second preset temperature T2, the condenser fan 22 is immediately started and the compressor 21 is started with a delay of 30 seconds.
Then, if the temperature T1 of the first cell group 11a is higher than the first preset temperature T1, the first evaporator fan is turned on for a delay of 60 seconds to cool the cold storage cell groups (the first cell group 11a and the second cell group 11 b); if the temperature T2 of the third cell group 11c is higher than the second preset temperature T2, the second evaporator fan is started after delaying for 60 seconds, and the freezing cell group (the third cell group 11c) is cooled; if the temperature T1 of the first cell group 11a is higher than the first preset temperature T1 and the temperature T2 of the third cell group 11c is also higher than the second preset temperature T2, the first evaporator fan and the second evaporator fan are turned on after a delay of 60 seconds, so as to cool all the cell groups 11 (the first cell group 11a, the second cell group 11b and the third cell group 11c) of the refrigerator.
If the refrigerator reaches the refrigeration temperature and refrigeration needs to be stopped, detecting the temperature T1 of the first grid group 11a and the temperature T2 of the third grid group 11c at the same time, if the temperature T1 of the first grid group 11a is lower than a third preset temperature T3, delaying the time of the first evaporator fan for 30 seconds to be closed, and stopping refrigeration and cooling of the refrigeration grid; if the temperature T2 of the third grid group 11c is lower than the fourth preset temperature T4, the second evaporator fan is turned off after delaying for 30 seconds, and the freezing grid stops refrigerating and cooling; if the temperature T1 of the first cell group 11a is lower than the third preset temperature T3 and at the same time the temperature T2 of the third cell group 11c is lower than the fourth preset temperature T4, the compressor 21 is immediately turned off, the condenser fan 22 is turned off with a delay of 30 seconds, the first and second evaporator fans are turned off with a delay of 60 seconds, and the cooling of the cells 111 of all the cell groups 11 of the refrigerator is stopped.
According to the temperature control logic, when refrigeration is needed, the refrigerant enters the first evaporator body and the second evaporator body at the same time, and the refrigeration of the cold storage grid group (the first grid group 11a and the second grid group 11b) and the freezing grid group (the third grid group 11c) is realized by controlling the opening and closing of the first evaporator fan and the second evaporator fan.
Example two
Different from the first embodiment, the refrigerator in the second embodiment further includes a flow control valve connected between the condensing assembly 2 and the evaporator assembly 3 on the basis of the structure of the first embodiment, and the flow control valve is connected to the control unit.
The flow regulating valve is used for regulating the amount of refrigerant provided to each evaporator assembly 3 by the condensing assembly 2, thereby controlling the amount of cold air converted by each evaporator assembly 3.
If the temperature value received by the control unit is within a preset temperature range or lower than the lower limit of the preset temperature range, the flow regulating valve is closed; and if the temperature value received by the control unit exceeds the upper limit of the preset temperature range, the flow regulating valve is opened.
Fig. 7 is a logic diagram of temperature control of the refrigerator with the flow control valve according to the second embodiment. When the refrigerator needs to refrigerate, the temperature T1 of the first grid group 11a and the temperature T2 of the third grid group 11c are detected simultaneously, if the temperature T1 of the first grid group 11a is higher than a first preset temperature T1, the condenser fan 22 is immediately started, the compressor 21 is started after delaying for 30 seconds, the first flow regulating valve is regulated and conducted towards one side of the first evaporator assembly 3a, refrigerant flows towards the first evaporator assembly 3a, and the first evaporator fan is started after delaying for 60 seconds, so that the refrigerating grid groups (the first grid group 11a and the second grid group 11b) are refrigerated and cooled; if the temperature T2 of the third grid group 11c is higher than the second preset temperature T2, the condenser fan 22 is immediately started, the compressor 21 is started after being delayed for 30 seconds, the flow regulating valve is regulated and conducted to the side of the second evaporator assembly 3b, the refrigerant flows to the second evaporator assembly 3b, and the second evaporator fan is started after being delayed for 60 seconds to refrigerate and cool the freezing grid group (the third grid group 11 c); if the temperature T1 of the first cell group 11a is higher than the first preset temperature T1 and the temperature T2 of the third cell group 11c is also higher than the second preset temperature T2, the condenser fan 22 is immediately turned on, the compressor 21 is turned on with a delay of 30 seconds, the flow control valve is simultaneously turned on toward both sides (the first evaporator assembly 3a side and the second evaporator assembly 3b side) and evenly distributes the refrigerant to the first evaporator assembly 3a and the second evaporator assembly 3b, the first evaporator fan and the second evaporator fan are turned on with a delay of 60 seconds, and all the cell groups 11 (the first cell group 11a, the second cell group 11b and the third cell group 11c) of the refrigerator are cooled and cooled simultaneously.
If the refrigerator reaches the refrigeration temperature and the refrigeration needs to be stopped, the temperature T1 of the first cell group 11a and the temperature T2 of the third cell group 11c are detected at the same time, if the temperature T1 of the first cell group 11a is lower than a third preset temperature T3, the flow regulating valve is regulated to the side back to the first evaporator assembly 3a, so that the refrigerant does not flow to the first evaporator assembly 3a, the fan of the first evaporator is delayed for 30 seconds to be closed, and the refrigeration cell stops refrigeration and temperature reduction; if the temperature T2 of the third cell group 11c is lower than the fourth preset temperature T4, the flow regulating valve is regulated to the side back to the second evaporator assembly 3b, so that the refrigerant does not flow to the second evaporator assembly 3b, the second evaporator fan is delayed for 30 seconds and is closed, and the freezing cells stop refrigerating and cooling; if the temperature T1 of the first cell group 11a is lower than the third preset temperature T3 and the temperature T2 of the third cell group 11c is lower than the fourth preset temperature T4 at the same time, the compressor 21 is immediately turned off, the condenser fan 22 is turned off after a delay of 30 seconds, the first evaporator fan and the second evaporator fan are turned off after a delay of 60 seconds, and the refrigerating and freezing of all the cells 111 of the cell group 11 are stopped.
According to the temperature control logic, the refrigerant is adjusted to different evaporators according to the preset temperature. When the refrigeration cell groups (the first cell group 11a and the second cell group 11b) need to be refrigerated, the refrigerant is adjusted to the first evaporator assembly 3a to refrigerate the refrigeration cell groups. When the freezing cell group (said third cell group 11c) needs to be refrigerated, the refrigerant is adjusted to the second evaporator assembly 3b to refrigerate the freezing cell group. When both the cold storage and freezing compartment groups require refrigeration, the refrigerant is simultaneously conditioned to the first evaporator assembly 3a and the second evaporator assembly 3b, while refrigerating the cold storage and freezing compartment groups. The temperature control method can realize that the refrigerator has the refrigerating and freezing functions at the same time.
EXAMPLE III
Unlike the first and second embodiments, in the third embodiment, the two temperature sensors are respectively disposed in the two refrigerating cell groups, specifically, the first temperature sensor is mounted in the cell 111a of the first cell group 11a, and the second temperature sensor is mounted in the cell 111b of the second cell group 11 b. It is understood that in the third embodiment, only the temperature sensor is arranged in the refrigerating compartment group.
When the freezer needs refrigeration, detect temperature sensor temperature, if be higher than first preset temperature (the upper limit of preset cold-stored temperature range), condenser fan 22 starts immediately, and compressor 21 time delay 30 seconds start, and the refrigerant enters into first evaporimeter subassembly 3a and second evaporimeter subassembly 3b simultaneously to first evaporimeter fan and second evaporimeter fan time delay 60 seconds are opened simultaneously, give cold-stored bin group and freezing bin group refrigeration cooling simultaneously.
When the refrigerator reaches the refrigeration temperature and needs to stop refrigeration, the temperature in the first grid group 11a and the second grid group 11b sensed by the temperature sensor is detected, if the temperature is lower than a second preset temperature (the lower limit of a preset refrigeration temperature range), the compressor 21 is immediately turned off, the condenser fan 22 is turned off after being delayed for 30 seconds, and the first evaporator fan and the second evaporator fan are turned off after being delayed for 60 seconds.
In the third embodiment, since the first evaporator unit 3a needs to supply air cooling to the two first cell groups 11a and the second cell group 11b at the same time, and the second evaporator unit 3b needs to supply air cooling to the third cell group 11c only, the air intake amount and the air intake speed of the third cell group 11c are much greater than those of the first cell group 11a and the second cell group 11 b. And when the temperature that temperature sensor sensing was less than the second and predetermine the temperature and stop the refrigeration, the temperature of third grid group 11c will be less than the temperature of first grid group 11a and second grid group 11b far away, but does not reach the scope of the true freezing temperature, is in a weak freezing state, can deposit the fresh produce that the short time needs the frozen storage, and it need not spend long time unfreezing after taking out, simple and convenient.
The freezer that this embodiment three provided can realize cold-stored and the little function of freezing simultaneously, guarantees that the temperature of third bin group 11c is less than 0 ℃, realizes the little function of freezing, guarantees simultaneously that the temperature of first bin group 11a and second bin group 11b is higher than 0 ℃, realizes cold-stored fresh-keeping function.
In addition to the above embodiments, the refrigerator of the present invention may further include a left row and a middle row as freezing function cells, and a right row as refrigerating function cells; or the left column is used as a cold storage function cell, the middle column and the right column are used as a freezing function cell, or the left column is used as a freezing function cell, and the middle column and the right column are used as cold storage function cells. In addition, the refrigerator of the present invention is not limited to the refrigerator with only three groups of the cell groups 11, and may also be the refrigerator with four or more groups of the cell groups 11, and the specific implementation method is similar to that of the above embodiments, and is not described herein again.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A freezer, characterized in that: the condensation assembly is connected with the evaporator assembly, the condensation assembly is used for providing refrigerant for the evaporator assembly, and the evaporator assembly is used for converting the refrigerant provided by the condensation assembly into cold air;
the cabinet body is provided with an air duct communicated with the evaporator assembly and at least one group of grid groups communicated with the air duct, each grid group comprises a plurality of grids, and an air quantity adjusting mechanism is arranged at the position, communicated with the air duct, of each grid;
the air quantity adjusting mechanism is used for adjusting the quantity of cold air entering each grid from the air duct, so that the quantity of cold air of the grids in the same grid group is the same.
2. The cooler of claim 1, wherein: the wind channel includes air inlet duct and return air duct, be formed with fresh air inlet and return air hole on the check, the fresh air inlet with the air inlet duct intercommunication, the return air hole with return air duct intercommunication, air regulation mechanism locates the week side of the fresh air inlet on the check.
3. The cooler of claim 2, wherein: the air quantity adjusting mechanism comprises air deflectors, the air deflectors are used for guiding cold air in the air inlet duct into the corresponding grids, and the opening angle and the size of the air deflectors are adjustable.
4. The cooler of claim 2, wherein: the cabinet body is also provided with an air inlet and an air return inlet, the air inlet is communicated with the evaporator assembly and the air inlet duct, and the air return inlet is communicated with the evaporator assembly and the air return duct.
5. The cooler of claim 1, wherein: the refrigerator also comprises a control unit and a temperature detection assembly arranged in any cell group, wherein the evaporator assembly, the condensation assembly and the temperature detection assembly are respectively connected with the control unit;
the temperature detection assembly is used for detecting the temperature value of the grid group where the temperature detection assembly is located in real time and sending the detected temperature value to the control unit;
the control unit is used for receiving the temperature value detected by the temperature detection assembly and judging whether the received temperature value is within a preset temperature range; if the received temperature value is within the preset temperature range or lower than the lower limit of the preset temperature range, closing the condensation assembly and the evaporator assembly corresponding to the grid group; and if the received temperature value exceeds the upper limit of the preset temperature range, starting the condensation assembly and the evaporator assembly corresponding to the grid group until the temperature value of the grid group is within the preset temperature range.
6. The cooler of claim 5, wherein: the preset temperature range comprises a preset refrigeration temperature range and/or a preset freezing temperature range.
7. The cooler of claim 5, wherein: the refrigerator also comprises a flow regulating valve connected between the condensing assembly and the evaporator assembly, and the flow regulating valve is connected with the control unit;
the flow regulating valve is used for regulating the amount of refrigerant provided to the evaporator assembly by the condensing assembly, so as to control the amount of cold air converted by the evaporator assembly;
if the temperature value received by the control unit is within a preset temperature range or lower than the lower limit of the preset temperature range, closing the flow regulating valve; and if the temperature value received by the control unit exceeds the upper limit of the preset temperature range, the flow regulating valve is opened.
8. The cooler of claim 5, wherein: the evaporator assemblies are provided with a plurality of air ducts, the air ducts are provided with a plurality of air ducts, the evaporator assemblies and the air ducts are arranged in a one-to-one correspondence mode, each air duct is communicated with at least one grid opening group, and the air quantity adjusting mechanism is adjusted to enable the air quantity in the grid openings of different grid opening groups to be different;
the temperature detection assembly is provided with one or more, and the temperature detection assembly can be arranged in any grid group.
9. The cooler of claim 8, wherein: the plurality of evaporator assemblies comprises a first evaporator assembly and a second evaporator assembly, and the plurality of air ducts comprises a first air duct communicated with the first evaporator assembly and a second air duct communicated with the second evaporator assembly;
the grid group is provided with three groups, namely a first grid group, a second grid group and a third grid group, the first grid group and the second grid group are communicated with the first air duct, the third grid group is communicated with the second air duct, and the temperature detection assemblies can be arranged in the first grid group, the second grid group and the third grid group.
10. A temperature regulation control method applied to the refrigerator as claimed in any one of claims 1 to 8, characterized in that: the evaporator assembly comprises two evaporator assemblies, namely a first evaporator assembly and a second evaporator assembly;
the two air channels are respectively a first air channel and a second air channel;
the grid group is provided with three groups, namely a first grid group, a second grid group and a third grid group;
the first air channel is communicated between the first grid group and the first evaporator assembly, the second grid group and the first evaporator assembly, and the first air channel is communicated between the third grid group and the second evaporator assembly;
the temperature regulation control method comprises the following steps:
detecting the temperature of the first cell group and simultaneously detecting the temperature of the third cell group;
judging whether the temperature of the first grid group is greater than a first preset temperature or not and whether the temperature of the third grid group is greater than a second preset temperature or not; if the temperature of the first grid group is higher than a first preset temperature, the compressor and the first evaporator assembly are started; if the temperature of the third grid group is higher than a second preset temperature, the compressor and the second evaporator assembly are started; if the temperature of the first grid group is higher than a first preset temperature and the temperature of the third grid group is higher than a second preset temperature, the compressor, the first evaporator assembly and the second evaporator assembly are all started;
judging whether the temperature of the first grid group is lower than a third preset temperature or not, and whether the temperature of the third grid group is lower than a fourth preset temperature or not; if the temperature of the first grid group is lower than a third preset temperature, the first evaporator assembly is closed; if the temperature of the third grid group is lower than a fourth preset temperature, the second evaporator assembly is closed; if the temperature of the first grid group is lower than a third preset temperature and the temperature of the third grid group is lower than a fourth preset temperature, the compressor, the first evaporator assembly and the second evaporator assembly are all closed.
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