CN111043827A - Refrigerating and freezing device and control method thereof - Google Patents

Refrigerating and freezing device and control method thereof Download PDF

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Publication number
CN111043827A
CN111043827A CN201811185149.6A CN201811185149A CN111043827A CN 111043827 A CN111043827 A CN 111043827A CN 201811185149 A CN201811185149 A CN 201811185149A CN 111043827 A CN111043827 A CN 111043827A
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China
Prior art keywords
infrared
electromagnet
infrared receiver
magnetic field
group
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Granted
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CN201811185149.6A
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CN111043827B (en
Inventor
姜波
衣尧
刘浩泉
王磊
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Haier Smart Home Co Ltd
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Qingdao Haier Co Ltd
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Priority to CN201811185149.6A priority Critical patent/CN111043827B/en
Priority to PCT/CN2019/101944 priority patent/WO2020073740A1/en
Publication of CN111043827A publication Critical patent/CN111043827A/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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/003—Arrangement or mounting of control or safety devices for movable 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
    • 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
    • F25D29/00—Arrangement or mounting of control or safety 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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control devices

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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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The invention provides a refrigerating and freezing device and a control method thereof, wherein the refrigerating and freezing device comprises a storage inner container, a door body, an infrared generator group and an infrared receiver group, and the control method comprises the following steps: detecting the opening and closing state of the door body; when the door body is changed from opening to closing, all the infrared generators and all the infrared receivers are started to obtain the state that all the infrared receivers receive the infrared signals; and adjusting the magnetic field intensity of the storage chamber according to the state of the infrared receiver for receiving the infrared signal. According to the refrigeration and freezing device and the control method thereof, whether the food materials are newly put in the storage chamber and the positions of the newly-put food materials are determined according to the state of the infrared receiver receiving the infrared signals, so that the magnetic field of the newly-put food material area can be adjusted, the food material refrigeration and preservation effect is improved, and meanwhile, the energy consumption can be greatly reduced.

Description

Refrigerating and freezing device and control method thereof
Technical Field
The invention relates to the technical field of household appliances, in particular to a refrigerating and freezing device and a control method thereof.
Background
After the food materials are stored in the refrigerator for a period of time, a series of deterioration reactions such as dry loss, juice loss and browning easily occur, the taste and flavor of the food are influenced, the preservation time is short, and the use experience of a user is influenced.
Disclosure of Invention
In view of the above, it is an object of the present invention to provide a refrigeration and freezing apparatus and a control method thereof that overcomes or at least partially solves the above problems.
A further object of the present invention is to improve the freshness-retaining effect of a refrigerating and freezing apparatus and to reduce energy consumption and cost.
According to one aspect of the present invention, there is provided a control method of a refrigerating and freezing apparatus, wherein the refrigerating and freezing apparatus includes:
the storage liner is internally provided with a storage chamber;
a door configured to open or close the storage compartment;
the infrared generator group and the infrared receiver group are respectively arranged on two opposite wall surfaces of the storage liner, the infrared generator group comprises a plurality of infrared generators which are distributed at intervals, and the infrared receiver group comprises a plurality of infrared receivers which are distributed at intervals and are opposite to the infrared generators one by one;
the control method comprises the following steps:
detecting the opening and closing state of the door body;
when the door body is changed from opening to closing, all the infrared generators and all the infrared receivers are started to obtain the state that all the infrared receivers receive the infrared signals;
and adjusting the magnetic field intensity of the storage chamber according to the state of the infrared receiver for receiving the infrared signal.
Optionally, the step of adjusting the magnetic field strength of the storage compartment according to the state of the infrared receiver receiving the infrared signal comprises:
comparing the infrared receiver which does not receive the infrared signal with the infrared receiver which does not receive the infrared signal and is detected after the door body is closed last time, wherein the infrared receiver which does not receive the infrared signal is recorded as the infrared receiver which does not respond last time, and the infrared receiver which does not receive the infrared signal and is detected after the door body is closed last time is recorded as the infrared receiver which does not respond last time;
if the number of the unresponsive infrared receivers at this time is larger than that of the unresponsive infrared receivers at the last time, screening newly-added unresponsive infrared receivers from the unresponsive infrared receivers at this time;
and applying an electromagnetic field to the area corresponding to the newly added nonresponsive infrared receiver in the storage compartment.
Optionally, before the step of applying an electromagnetic field to the region of the storage compartment corresponding to the newly added non-responsive infrared receiver, the method further comprises:
establishing a three-dimensional model of the storage chamber, and marking the positions of the infrared generator group and the infrared receiver group on the three-dimensional model;
establishing a magnetic field distribution model of the storage chamber, and superposing the magnetic field distribution model into a three-dimensional model to obtain a magnetic field distribution model of a three-dimensional space of the storage chamber;
in the magnetic field distribution model, the magnetic field distribution region of the region corresponding to the newly added nonresponsive infrared receiver is determined.
Optionally, the refrigeration freezer further comprises:
the two electromagnet groups are respectively arranged on the two wall surfaces and used for forming a magnetic field in the storage chamber, and each electromagnet group comprises a plurality of electromagnets distributed at intervals;
the step of establishing the magnetic field distribution model of the storage chamber specifically comprises the following steps:
detecting a magnetic field area generated by each electromagnet in the storage chamber, and establishing a magnetic field distribution model of the storage chamber;
the step of applying an electromagnetic field to the area corresponding to the newly added nonresponsive infrared receiver in the storage compartment specifically comprises the following steps:
determining the spatial position of each electromagnet forming the magnetic field distribution area according to the magnetic field distribution model;
and opening the electromagnet corresponding to the space position on the wall surface.
Optionally, in the infrared generator group and the electromagnet group which are located on the same wall surface, a plurality of infrared generators of the infrared generator group correspond to a plurality of electromagnets in the electromagnet group one by one, and one infrared generator is arranged below and adjacent to a corresponding electromagnet;
the infrared receivers and the electromagnets are located on the same wall surface, a plurality of infrared receivers of the infrared receiver group are in one-to-one correspondence with a plurality of electromagnets in the electromagnet group, and one infrared receiver is arranged below the adjacent electromagnet.
Optionally, after obtaining the state that all the infrared receivers receive the infrared signals, further comprising:
and recording the number and the positions of the unresponsive infrared receivers at this time to be used as the last unresponsive infrared receivers for the control process after the door body is changed from being opened to being closed next time.
Optionally, after applying an electromagnetic field to a region of the storage compartment corresponding to the newly added non-responsive infrared receiver, the method further includes:
the refrigeration system of the refrigeration and freezing device is started.
According to another aspect of the present invention, there is also provided a refrigeration and freezing apparatus,
the method comprises the following steps:
the storage liner is internally provided with a storage chamber;
a door configured to open or close the storage compartment;
a door detector configured to detect an open/close state of a door;
the infrared generator group and the infrared receiver group are respectively arranged on two opposite wall surfaces, the infrared generator group comprises a plurality of infrared generators which are distributed at intervals, and the infrared receiver group comprises a plurality of infrared receivers which are distributed at intervals and are opposite to the infrared generators one by one;
a controller and a memory, the memory having stored therein a computer program, and the computer program being executed to cause the controller to perform the control method of any one of the above.
Optionally, the refrigeration and freezing apparatus further comprises:
two electromagnet groups are respectively arranged on two opposite wall surfaces of the storage inner container and used for forming a magnetic field in the storage chamber, and each electromagnet group comprises a plurality of electromagnets distributed at intervals.
Optionally, in the infrared generator group and the electromagnet group which are located on the same wall surface, a plurality of infrared generators of the infrared generator group correspond to a plurality of electromagnets in the electromagnet group one by one, and one infrared generator is arranged below and adjacent to a corresponding electromagnet;
the infrared receivers and the electromagnets are located on the same wall surface, a plurality of infrared receivers of the infrared receiver group are in one-to-one correspondence with a plurality of electromagnets in the electromagnet group, and one infrared receiver is arranged below the adjacent electromagnet.
According to the refrigeration and freezing device and the control method thereof, whether food materials are newly put in the storage chamber and the position of the newly-put food materials are determined when the door body is opened according to the state of the infrared receiver receiving the infrared signals, so that the magnetic field of the newly-put food material area can be adjusted, the food material refrigeration and preservation effect is improved, and meanwhile, the energy consumption is greatly reduced.
Furthermore, in the refrigeration and freezing device and the control method thereof, the small-size electromagnets are used in a breakthrough manner, and a matrix type uniform distribution manner is combined, so that uniformly distributed magnetic fields can be formed in the storage chamber, the cost is low, the independent control of the magnetic field intensity of each electromagnet can be realized, and the magnetic field intensity of the local area of the storage chamber can be conveniently and pertinently adjusted by combining the state that the infrared receiver receives infrared signals.
Furthermore, in the refrigeration and freezing device and the control method thereof, the infrared generator group, the infrared receiver group and the two electromagnet groups are specially distributed, so that the opening number of the electromagnets can be reduced while the magnetic field intensity of a region where the food materials are newly put is ensured, the energy consumption is further saved, and the cost is reduced.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a storage liner of the refrigerating and freezing device according to an embodiment of the present invention, wherein two opposite wall surfaces of the storage liner are respectively provided with an electromagnet group;
fig. 3 is a schematic structural view of an electromagnet of the refrigerating and freezing apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention, in which an electromagnet group and an infrared generator group are disposed on the same wall surface of a storage container;
fig. 5 is a schematic structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention, in which an electromagnet group and an infrared receiver group are disposed on the same wall surface of a storage container;
fig. 6 is a schematic diagram of a method of controlling a refrigeration chiller according to one embodiment of the present invention;
fig. 7 is a flow chart of a method of controlling a refrigeration chiller according to one embodiment of the present invention; and
fig. 8 is a schematic block diagram of a refrigeration freezer in accordance with one embodiment of the invention.
Detailed Description
The present embodiment first provides a refrigeration and freezing apparatus, and the refrigeration and freezing apparatus according to the embodiment of the present invention will be described below with reference to fig. 1 to 5.
Fig. 1 is a schematic configuration diagram of a refrigerating and freezing apparatus according to an embodiment of the present invention.
The embodiment firstly provides a refrigerating and freezing device which can be a device with refrigerating and freezing functions, such as a refrigerator or a freezer. The present embodiment describes a general structure of a refrigerating and freezing apparatus, which generally includes a cabinet 10, by taking a refrigerator as an example. The box body 10 includes a plurality of storage inner containers 14, and a storage compartment is defined in each storage inner container 14, and the storage compartment may be a refrigerating compartment, a temperature-changing compartment, or a freezing compartment. As shown in fig. 1, a refrigeration liner with an open front side is arranged at the upper part of the box body 10, and two refrigeration doors 11 which are arranged side by side at the left and right and open or close the refrigeration compartment are arranged at the front side of the refrigeration liner; the lower part of the box body 10 is provided with a temperature-changing chamber and a freezing chamber, the front side of the temperature-changing chamber is provided with a temperature-changing door 12 for opening or closing the temperature-changing chamber, and the front side of the freezing chamber is provided with a freezing door 13 for opening or closing the freezing chamber.
Of course, in some embodiments, the refrigerating and freezing device may be a refrigerator with other structures, and may also be a freezer, where the front side of the freezer is open or the upper part of the freezer is open, and the open part of the freezer is provided with a door that can open or close the freezer.
Fig. 2 is a schematic configuration diagram of a storage bladder 14 of a refrigerating and freezing apparatus according to an embodiment of the present invention, in which two opposite wall surfaces of the storage bladder 14 are respectively provided with an electromagnet group, fig. 3 is a schematic configuration diagram of an electromagnet 15 of the refrigerating and freezing apparatus according to an embodiment of the present invention, fig. 4 is a schematic configuration diagram of an electromagnet group and an infrared generator group on the same wall surface of the storage bladder 14 of the refrigerating and freezing apparatus according to an embodiment of the present invention, distributed on the wall surface, and fig. 5 is a schematic configuration diagram of an electromagnet group and an infrared receiver group on the same wall surface of the storage bladder 14 of the refrigerating and freezing apparatus according to an embodiment of the present invention.
In particular, the refrigeration and freezing apparatus of the present embodiment further includes a door detector 40 (shown in fig. 8), an infrared generator group, and an infrared receiver group. The door detector 40 is configured to detect a closing signal of the door, and thus can sense an opening/closing state of the door, and the door detector 40 may be a magnetic sensitive switch disposed to match the door and configured to change its opening/closing signal according to the opening/closing state of the door. The magnetic sensitive switch can also be replaced by a contact switch.
As shown in fig. 4 and 5, the infrared generator group and the infrared receiver group are respectively disposed on two opposite wall surfaces of the storage liner 14, the infrared generator group includes a plurality of infrared generators 16 spaced on the corresponding wall surfaces, and the infrared receiver group includes a plurality of infrared receivers 17 spaced one by one with respect to all the infrared generators 16.
When the door body detector 40 detects a closing signal of the door body, all the infrared generators 16 and the infrared receivers 17 can be opened to obtain the state that the infrared receivers 17 receive the infrared signals, so that the magnetic field intensity of the storage chamber can be conveniently adjusted according to the state that the infrared receivers 17 receive the infrared signals.
The state in which the infrared receiver 17 receives the infrared signal includes a reception state in which the infrared signal is received and an unreceived state in which the infrared signal is not received. If the infrared receiver 17 receives the infrared signal, it indicates that the space in the storage chamber corresponding to the infrared receiver 17 is empty and not occupied by the food material; if the infrared receiver 17 does not receive the infrared signal, it indicates that the food material is placed in the space corresponding to the infrared receiver 17 in the storage compartment. Accordingly, after the door body is closed, whether new food materials are put into the storage chamber and the position of the new food materials are put into the storage chamber can be judged according to the state of the infrared receiver 17 receiving the infrared signals, and therefore the magnetic field intensity of a local area of the storage chamber, for example, the area of the new food materials can be adjusted.
In some embodiments, the magnetic field of the storage compartment may be formed by electromagnets 15 distributed over the storage bladder 14. Specifically, as shown in fig. 2 and 3, the refrigerating and freezing device further includes two electromagnet groups respectively disposed on two opposite wall surfaces of the storage container 14 to form an electromagnetic field in the storage compartment, and each electromagnet group includes a plurality of electromagnets 15 distributed at intervals. The electromagnets 15 comprise electromagnet cores 151 and coils 152 wound on the electromagnet cores 151, and each electromagnet 15 is provided with an independent power supply to realize independent switching of each electromagnet 15 and independent control of the magnetic field strength of each electromagnet 15 through the current intensity.
As shown in fig. 2, the electromagnet 15 is embedded into the wall of the storage liner 14, the electromagnet 15 on each wall can be distributed in a matrix form, and for the scheme that two large magnets are arranged on two opposite walls of the storage liner 14, in this embodiment, the small-sized electromagnet 15 is used in a breakthrough manner, and the matrix-form uniform distribution manner is combined, so that a uniformly distributed magnetic field can be formed in the storage compartment, and the cost is low, and the independent control of the magnetic field intensity of each electromagnet 15 can be realized, so that the magnetic field intensity of the local area of the storage compartment can be adjusted in a targeted manner by combining the state that the infrared receiver 17 receives the infrared signal.
In this embodiment, the storage liner 14 is a freezing liner, and the electromagnet 15 is utilized to form an electromagnetic field in the freezing liner, and the electromagnetic field acts on the freezing process of the food material in the freezing liner, so that the food material freezing effect can be improved. Generally, the freezing process of food materials is divided into 3 stages: a cooling phase, a phase change phase and a freezing phase. During the freezing process of the food material, particularly at the phase transition stage, the large-size ice crystals generated by crystallization can puncture cell membranes, and during the thawing process, cell damage, juice loss and loss of food flavor and nutrition can occur, so that the quality of the food is reduced, and particularly, the food is particularly obvious for some meats, aquatic products and the like with higher quality requirements. In the food material freezing process, an electromagnetic field is applied to the food material, the supercooling temperature of the food material can be reduced, the time of passing through the maximum ice crystal zone is prolonged, small and dense crystal nuclei are formed in the period, the influence on the food quality is small, the color of the food material is closer to the color of the original unfrozen food material, the water retention of the food material is improved, the juice loss in the food material unfreezing process can be reduced, and the freezing and fresh-keeping effects of the food material are improved.
Fig. 6 is a schematic diagram of a method of controlling a refrigeration chiller according to one embodiment of the present invention.
As shown in fig. 6, based on the refrigeration and freezing apparatus of any of the embodiments, the present embodiment further provides a method for controlling a refrigeration and freezing apparatus, which specifically includes:
s602, detecting the opening and closing state of the door body;
s604, when the door body is changed from opening to closing, all the infrared generators 16 and all the infrared receivers 17 are started to obtain the state that all the infrared receivers 17 receive the infrared signals;
s606, adjusting the magnetic field intensity of the storage chamber according to the state of the infrared receiver 17 receiving the infrared signal.
The door detector 40 detects a closing signal of the door, and the door detector 40 can sense an opening and closing state of the door. When the door detector 40 detects a closing signal of the door, all the infrared generators 16 and the infrared receivers 17 are turned on to obtain the state that all the infrared receivers 17 receive the infrared signal.
The state that the infrared receiver 17 receives the infrared signal is 0 or 1, and if the state that the infrared receiver 17 receives the infrared signal is 0, it indicates that the infrared receiver 17 does not receive the infrared signal transmitted by the infrared generator 16, which indicates that the food material is placed in the space corresponding to the infrared receiver 17 in the storage compartment, and the infrared receiver 17 cannot receive the infrared signal transmitted by the corresponding infrared generator 16 due to the blockage of the food material. If the state that the infrared receiver 17 receives the infrared signal is 1, it indicates that the infrared receiver 17 receives the infrared signal transmitted by the infrared generator 16, and it indicates that the space corresponding to the infrared receiver 17 in the storage compartment is empty and not occupied by the food material.
Therefore, whether food materials are placed in the space corresponding to the corresponding infrared receiver 17 in the storage chamber can be judged according to the state that the infrared receiver 17 receives the infrared signal, so that the electromagnetic field of the space where the food materials are placed can be adjusted.
In the existing scheme, the situation of food materials placed in the storage chamber is not considered, all electromagnets 15 are turned on no matter the occupied space of the food materials after the food materials are placed at each time, the energy consumption is increased, the formed magnetic field intensity is possibly too high, and the freezing and the fresh-keeping of the food materials are not facilitated. In the embodiment, the storage condition of the food materials in the storage chamber is judged by introducing the infrared receiver 17 and the infrared generator 16, so that an electromagnetic field is applied to the local space of the storage chamber in a targeted manner, the energy consumption can be reduced, and an appropriate magnetic field strength which is favorable for freezing and refreshing the food materials can be formed.
In addition, in the existing scheme, because only two large-sized electromagnets 15 are arranged on the storage inner container 14, all the electromagnets 15 need to be turned on no matter how many new food materials are put into the storage chamber, and the magnetic field formed by the electromagnets 15 covers not only the area of the new food materials, but also other areas except the new food materials, thereby increasing energy consumption. In this embodiment, the small-sized electromagnets 15 distributed at intervals are arranged on the wall surface, so that only the electromagnets 15 forming the magnetic field in the new food material placing space are turned on, and other electromagnets 15 corresponding to the new food material not placed are not needed to be turned on, thereby improving the food material preservation effect and reducing the energy consumption and cost.
Specifically, the step of adjusting the magnetic field strength of the storage compartment according to the state of the infrared receiver 17 receiving the infrared signal includes:
comparing the infrared receiver 17 which does not receive the infrared signal with the infrared receiver 17 which does not receive the infrared signal and is detected after the door body is closed last time, wherein the infrared receiver 17 which does not receive the infrared signal is recorded as the infrared receiver 17 which does not respond last time, and the infrared receiver 17 which does not receive the infrared signal and is detected after the door body is closed last time is recorded as the infrared receiver 17 which does not respond last time;
if the number of the unresponsive infrared receivers 17 at this time is greater than the number of the unresponsive infrared receivers 17 at the last time, screening newly added unresponsive infrared receivers 17 from the unresponsive infrared receivers 17 at this time;
and applying an electromagnetic field to the area corresponding to the newly added nonresponsive infrared receiver 17 in the storage compartment.
By comparing the unresponsive infrared receiver 17 at this time with the unresponsive infrared receiver 17 at the last time, the newly added unresponsive infrared receiver 17 can be determined, after the door body is closed, the newly added unresponsive infrared receiver 17 appears, which indicates that a new article is placed in the storage compartment, and the area corresponding to the newly added unresponsive infrared receiver 17 is the area for storing the new food material.
The area in the storage chamber corresponding to the newly added non-response infrared receiver 17 is specifically the area between the infrared receiver 17 positioned at the uppermost part in the newly added non-response infrared receiver 17 and the infrared receiver 17 positioned at the uppermost part in the last non-response infrared receiver 17 in the storage chamber, so as to ensure that the spatial range of the area is equal to or larger than the area where the new food material is located, thereby ensuring that the area where the new food material is located can be completely located in the electromagnetic field.
After the magnetic field is applied to the area corresponding to the newly added non-response infrared receiver 17 in the storage compartment, the refrigerating system of the refrigerating and freezing device can be immediately started, the temperature of the storage compartment is reduced, the newly-placed food materials are frozen, and meanwhile, the infrared receiver 17 and the infrared generator 16 are closed. After the electromagnet 15 is turned on for a preset time, the food material is newly put in to complete the freezing process, and then the electromagnet 15 is turned off, for example, after the electromagnet 15 is turned on (energized) for 1 hour, the food material is turned off (de-energized). Therefore, the energy consumption is further reduced while the freezing and fresh-keeping effects are improved.
After obtaining the state that all the infrared receivers 17 receive the infrared signals, the control method further includes:
the number and position of the unresponsive infrared receivers 17 at this time are recorded as the last unresponsive infrared receivers 17 used in the control process after the door body is changed from open to closed next time. That is, after the door body closes, when detecting the door body and close the signal once more, need compare with this unresponsive infrared receiver 17, judge the edible material condition of placing of storing compartment once more, reciprocate in proper order.
In order to clarify the magnetic field distribution of all the electromagnets 15 distributed on the storage inner container 14 in the storage chamber, a magnetic field distribution model of the storage chamber needs to be established through experiments. Specifically, before the step of applying the electromagnetic field to the region of the storage chamber corresponding to the newly added non-responsive infrared receiver 17, the control method further comprises:
establishing a three-dimensional model of the storage chamber, and marking the positions of the infrared generator group and the infrared receiver 17 group in the three-dimensional model;
and establishing a magnetic field distribution model of the storage chamber, and superposing the magnetic field distribution model into the three-dimensional model to obtain the magnetic field distribution model of the three-dimensional space of the storage chamber.
The step of establishing the magnetic field distribution model of the storage chamber specifically comprises the following steps:
and detecting the magnetic field area generated by each electromagnet 15 in the storage chamber, and establishing a magnetic field distribution model of the storage chamber, so that the magnetic field areas corresponding to different electromagnets 15 are presented in the three-dimensional model of the storage chamber to form the magnetic field distribution model of the storage chamber.
In the magnetic field distribution model, a magnetic field distribution region corresponding to a region to which the nonresponsive infrared receiver 17 is newly added is determined.
From the magnetic field distribution model, the individual electromagnets 15 and their corresponding magnetic field regions can be determined, and after the region in the storage compartment corresponding to the newly added non-responsive infrared receiver 17 is determined, the magnetic field distribution region of this region can be determined in the magnetic field distribution model.
And then, determining the spatial position of each electromagnet 15 forming the magnetic field distribution area according to the magnetic field distribution model, so that the electromagnet 15 corresponding to the spatial position on the wall surface of the storage liner 14 can be opened, a magnetic field is applied to the newly-placed food materials, and the freezing and fresh-keeping effects of the food materials are improved.
In some embodiments, referring again to fig. 4 and 5, in the infrared generator group and the electromagnet group located on the same wall surface, a plurality of infrared generators 16 of the infrared generator group correspond to a plurality of electromagnets 15 of the electromagnet group one by one, and one infrared generator 16 is disposed adjacent to and below a corresponding one of the electromagnets 15; in the infrared receiver group and the electromagnet group which are located on the same wall surface, a plurality of infrared receivers 17 of the infrared receiver group correspond to a plurality of electromagnets 15 in the electromagnet group one by one, and one infrared receiver 17 is arranged below the adjacent electromagnet 15. The infrared generator group, the infrared receiver group and the two electromagnet groups are specially distributed, so that the infrared generator 16 and the infrared receiver 17 are close to the corresponding electromagnet 15, an area (a new food material placing area) corresponding to the position of the newly-added and non-responding infrared receiver 17 in the storage chamber is also a corresponding area of the electromagnet 15 close to the newly-added and non-responding infrared receiver 17, the electromagnet 15 which is determined to be turned on according to the magnetic field distribution model necessarily comprises the electromagnet 15 close to the newly-added and non-responding infrared receiver 17, and the electromagnet 15 is close to or corresponds to the newly-placed food material area, so that a magnetic field with a larger proportional intensity can be provided for the newly-placed food material area, the turning-on number of other electromagnets 15 can be reduced, the energy consumption is further saved, and the cost is reduced.
The present embodiment exemplarily shows an optional flow of a control method of a refrigeration and freezing apparatus, and specifically, referring to fig. 7, fig. 7 is an optional flow chart of a control method of a refrigeration and freezing apparatus according to an embodiment of the present invention, and the control method of the refrigeration and freezing apparatus includes:
s702, establishing a three-dimensional model and a magnetic field distribution model of the storage chamber, and superposing the magnetic field distribution model into the three-dimensional model to obtain a magnetic field distribution model of a three-dimensional space of the storage chamber;
s704, detecting a signal of closing the door body, and if so, executing a step S706;
s706, starting all the infrared generators 16 and all the infrared receivers 17 to obtain the state that all the infrared receivers 17 receive the infrared signals;
s708, comparing the unresponsive infrared receiver 17 of this time with the unresponsive infrared receiver 17 of the last time, and recording the number and the position of the unresponsive infrared receiver 17 of this time;
s710, the number of unresponsive infrared receivers 17 of this time is greater than the number of unresponsive infrared receivers 17 of the last time, if yes, step S712 is executed, otherwise, the process is ended;
s712, screening new additional unresponsive infrared receivers 17 from the unresponsive infrared receivers 17;
s714, in the magnetic field distribution model, determining a magnetic field distribution area corresponding to the newly added nonresponsive infrared receiver 17;
s716, determining the spatial position of each electromagnet 15 forming the magnetic field distribution region according to the magnetic field distribution model;
s718, turning on the electromagnet 15 corresponding to the space position, turning on the refrigeration system, and turning off all the infrared generators 16 and the infrared receivers 17;
and S720, turning off the turned-on electromagnet 15 after 1 hour.
Fig. 8 is a schematic block diagram of a refrigeration freezer in accordance with one embodiment of the invention.
To realize the automatic control of the control method, as shown in fig. 8, the refrigeration and freezing apparatus of the present embodiment further includes a controller 20 and a memory 30, a computer program 31 is stored in the memory 30, and the computer program 31 is executed to make the controller 20 execute the control method of any one of the above embodiments.
As shown in fig. 8, the infrared generators 16 included in the infrared generator group are respectively referred to as an infrared generator 16-1, an infrared generator 16-2,. …, and an infrared generator 16-n, the infrared receivers 17 included in the infrared receiver group are respectively referred to as an infrared receiver 17-1, an infrared receiver 17-2, an infrared receiver … …, and an infrared receiver 17-n, and the electromagnets 15 included in each electromagnet group are respectively referred to as an electromagnet 15-1, an electromagnet 15-2, an electromagnet … …, and an electromagnet 15-n.
The computer program 31 is executed to cause the controller 20 to execute the steps of the method described above to control the door detector 40, the infrared generators 16, the infrared receiver 17 and the electromagnet 15 in response to the above steps, thereby achieving the preservation of the magnetic field of the refrigerating and freezing apparatus.
The memory 30 of the present embodiment may be an electronic memory such as a flash memory, an EEPROM, an EPROM, a hard disk or a ROM, the memory 30 having storage space for a computer program 31 for performing any of the method steps of the above-described method.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. A control method of a refrigerator freezer, wherein the refrigerator freezer comprises:
the storage liner is internally provided with a storage chamber;
the door body is configured to open or close the storage compartment;
the infrared generator group and the infrared receiver group are respectively arranged on two opposite wall surfaces of the storage liner, the infrared generator group comprises a plurality of infrared generators which are distributed at intervals, and the infrared receiver group comprises a plurality of infrared receivers which are distributed at intervals and are in one-to-one correspondence with the plurality of infrared generators;
the control method comprises the following steps:
detecting the opening and closing state of the door body;
when the door body is changed from opening to closing, all the infrared generators and all the infrared receivers are started to obtain the state that all the infrared receivers receive infrared signals;
and adjusting the magnetic field intensity of the storage chamber according to the state that the infrared receiver receives the infrared signal.
2. The control method according to claim 1, wherein the step of adjusting the magnetic field strength of the storage compartment according to the state of receiving the infrared signal by the infrared receiver comprises:
comparing the infrared receiver which does not receive the infrared signals with the infrared receiver which does not receive the infrared signals and is detected after the door body is closed last time, wherein the infrared receiver which does not receive the infrared signals at this time is recorded as an unresponsive infrared receiver at this time, and the infrared receiver which does not receive the infrared signals and is detected after the door body is closed last time is recorded as an unresponsive infrared receiver at last time;
if the number of the unresponsive infrared receivers of this time is larger than the number of the unresponsive infrared receivers of the last time, screening newly-added unresponsive infrared receivers from the unresponsive infrared receivers of this time;
and applying an electromagnetic field to the area corresponding to the newly added nonresponsive infrared receiver in the storage compartment.
3. The control method of claim 2, wherein prior to the step of applying an electromagnetic field to the region of the storage compartment corresponding to the newly added non-responsive infrared receiver, further comprising:
establishing a three-dimensional model of the storage chamber, and marking the positions of the infrared generator group and the infrared receiver group on the three-dimensional model;
establishing a magnetic field distribution model of the storage chamber, and superposing the magnetic field distribution model into the three-dimensional model to obtain a magnetic field distribution model of the three-dimensional space of the storage chamber;
and determining the magnetic field distribution region of the region corresponding to the newly added nonresponsive infrared receiver in the magnetic field distribution model.
4. The control method of claim 3, wherein the refrigeration freezer further comprises:
the two electromagnet groups are respectively arranged on the two wall surfaces and used for forming a magnetic field in the storage chamber, and each electromagnet group comprises a plurality of electromagnets distributed at intervals;
the step of establishing the magnetic field distribution model of the storage chamber specifically comprises the following steps:
detecting a magnetic field area generated by each electromagnet in the storage chamber, and establishing a magnetic field distribution model of the storage chamber;
the step of applying an electromagnetic field to the region of the storage compartment corresponding to the newly added nonresponsive infrared receiver specifically comprises:
determining the spatial position of each electromagnet forming the magnetic field distribution region according to the magnetic field distribution model;
and opening the electromagnet corresponding to the space position on the wall surface.
5. The control method according to claim 4, wherein
The infrared generators and the electromagnets are positioned on the same wall surface, the infrared generators of the infrared generator set correspond to the electromagnets of the electromagnet set one by one, and one infrared generator is arranged below the adjacent electromagnet;
the infrared receivers on the same wall surface are arranged in the infrared receiver group and the electromagnet group, the infrared receivers in the infrared receiver group are in one-to-one correspondence with the electromagnets in the electromagnet group, and one infrared receiver is arranged below the adjacent electromagnet.
6. The control method according to claim 2, further comprising, after obtaining the state in which all the infrared receivers receive the infrared signals:
and recording the number and the positions of the unresponsive infrared receivers at this time to be used as last unresponsive infrared receivers in the control process after the door body is changed from being opened to being closed next time.
7. The control method according to claim 2, wherein after applying the electromagnetic field to the region of the storage compartment corresponding to the newly added nonresponsive infrared receiver, further comprising:
and starting a refrigerating system of the refrigerating and freezing device.
8. A refrigeration chiller comprising:
the storage liner is internally provided with a storage chamber;
the door body is configured to open or close the storage compartment;
a door detector configured to detect an open/close state of the door;
the infrared generator group and the infrared receiver group are respectively arranged on the two opposite wall surfaces, the infrared generator group comprises a plurality of infrared generators which are distributed at intervals, and the infrared receiver group comprises a plurality of infrared receivers which are distributed at intervals and are in one-to-one correspondence with the plurality of infrared generators;
a controller and a memory, the memory having stored therein a computer program and the computer program being executed to cause the controller to execute the control method according to any one of claims 1 to 7.
9. The refrigeration freezer of claim 8, further comprising:
the two electromagnet groups are respectively arranged on two opposite wall surfaces of the storage inner container and used for forming a magnetic field in the storage chamber, and each electromagnet group comprises a plurality of electromagnets distributed at intervals.
10. A refrigerator-freezer according to claim 9, wherein the freezer is a refrigerator-freezer
The infrared generators and the electromagnets are positioned on the same wall surface, the infrared generators of the infrared generator set correspond to the electromagnets of the electromagnet set one by one, and one infrared generator is arranged below the adjacent electromagnet;
the infrared receivers on the same wall surface are arranged in the infrared receiver group and the electromagnet group, the infrared receivers in the infrared receiver group are in one-to-one correspondence with the electromagnets in the electromagnet group, and one infrared receiver is arranged below the adjacent electromagnet.
CN201811185149.6A 2018-10-11 2018-10-11 Refrigerating and freezing device and control method thereof Active CN111043827B (en)

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PCT/CN2019/101944 WO2020073740A1 (en) 2018-10-11 2019-08-22 Refrigerating and freezing apparatus and control method therefor

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