CN113776268A

CN113776268A - Refrigerator condensing fan control method and system and refrigerator

Info

Publication number: CN113776268A
Application number: CN202111117203.5A
Authority: CN
Inventors: 徐兴杰; 方茂长; 汪猗吉; 余石波; 杨志永; 李琦
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2021-12-10

Abstract

The invention relates to a method and a system for controlling a refrigerator condensing fan and a refrigerator, wherein the method respectively obtains temperature information detected by an environment temperature sensor, a condensing sensor and a defrosting sensor, and controls the rotating speed of the refrigerator condensing fan according to the temperature information.

Description

Refrigerator condensing fan control method and system and refrigerator

Technical Field

The invention relates to the technical field of intelligent household appliances, in particular to a method and a system for controlling a condensing fan of a refrigerator and the refrigerator.

Background

At present, the condenser of the air-cooled refrigerator is generally divided into an internal type and an external type, while the condenser of the traditional external type refrigerator is generally forced to ventilate by a condenser fan, so as to accelerate the condensation of the gaseous refrigerant in the condenser into a liquid state, and the control method is generally as follows: when the temperature in the refrigerator rises to reach the starting condition of the compressor, the compressor is electrified to run, and meanwhile, the condenser fan is electrified to start. However, since the heat dissipation of the external condenser is greatly related to the ambient temperature, the prior art proposes to determine the load of the refrigeration system according to the ambient temperature and then control the operation of the condensing fan.

This approach fails to fully cover the high load operating conditions of the refrigerator refrigeration system. For example, the defrosting sensor operates with obvious characteristics during the normal operation of the refrigerator. When the defrosting sensor detects that the temperature of the evaporator of the freezing chamber is higher, the defrosting period of the refrigerator is ended, the refrigerating requirement of the refrigerator is strong, and the heat load is higher. If the condenser is not cooled, the refrigeration effect is affected.

Disclosure of Invention

In view of the above, the present invention provides a method and a system for controlling a condensing fan of a refrigerator, and a refrigerator, so as to solve the problem that the operation control method of the condensing fan of the refrigerator in the prior art does not fully cover the high-load operation condition of the refrigeration system of the refrigerator.

According to a first aspect of embodiments of the present invention, there is provided a method for controlling a condensing fan of a refrigerator, including:

respectively acquiring temperature information detected by an environment temperature sensor, a condensation sensor and a defrosting sensor;

controlling the rotating speed of a condensing fan of the refrigerator according to the temperature information;

wherein the ambient temperature sensor is arranged on a refrigerator body and/or a cabinet door of the refrigerator.

Preferably, the method further comprises:

when the compressor of the refrigerator is started, controlling the condensing fan to be powered on;

and when the compressor of the refrigerator is closed, controlling the power failure of the condensing fan.

Preferably, the controlling the rotating speed of the condensing fan of the refrigerator according to the temperature information includes:

when the temperature detected by the environment temperature sensor is greater than or equal to the preset temperature, starting a condensing fan;

and when the temperature detected by the environment temperature sensor is lower than the preset temperature, the condensing fan is turned off.

Preferably, the method further comprises:

if the temperature detected by the condensation sensor is higher than the temperature detected by the ambient temperature sensor, the rotating speed of the condensation fan is increased to be a first rotating speed;

and if the temperature detected by the condensation sensor is less than or equal to the temperature detected by the environment temperature sensor, maintaining the current rotating speed of the condensation fan.

Preferably, the increasing the rotation speed of the condensing fan is a first rotation speed, specifically:

calculating the difference between the temperature detected by the condensation sensor and the temperature detected by the environment temperature sensor;

if the difference is positive, the difference is increased by a preset amplitude per liter, the rotating speed of the condensing fan is increased by one gear, and the rotating speed corresponding to the increased gear is the first rotating speed.

Preferably, the method further comprises:

if the temperature detected by the defrosting sensor is within a preset temperature interval, the first rotating speed is increased to a second rotating speed;

and if the temperature detected by the defrosting sensor is not within a preset temperature interval, keeping the current rotating speed of the condensing fan.

Preferably, the method further comprises:

and if the first rotating speed or the second rotating speed is higher than the highest rotating speed of the condensing fan, controlling the condensing fan to operate at the highest rotating speed.

According to a second aspect of embodiments of the present invention, there is provided a refrigerator condensing fan control system, comprising:

the acquisition module is used for respectively acquiring temperature information detected by the environment temperature sensor, the condensation sensor and the defrosting sensor;

the control module is used for controlling the rotating speed of the condensing fan of the refrigerator according to the temperature information;

According to a third aspect of embodiments of the present invention, there is provided a refrigerator including:

the control system of the condensing fan of the refrigerator.

According to a fourth aspect of the embodiments of the present invention, there is provided a refrigerator including:

a memory for storing program instructions;

a processor configured to execute the memory-stored program instructions, comprising:

The technical scheme provided by the embodiment of the invention can have the following beneficial effects:

the technical scheme provided by the invention can more comprehensively cover the situation of high-load operation of the refrigerator, has higher control precision and wider applicable scene, can better meet the heat dissipation requirements of an external condenser and a compressor bin in a refrigerator refrigerating system, improves the refrigerating effect of the refrigerator, and has good user experience and high satisfaction degree.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

FIG. 1 is a flow chart illustrating a method of controlling a condensing fan of a refrigerator according to an exemplary embodiment;

fig. 2 is a schematic block diagram illustrating a refrigerator condensing fan control system according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

Example one

Fig. 1 is a flowchart illustrating a method for controlling a condensing fan of a refrigerator according to an exemplary embodiment, as shown in fig. 1, the method including:

step S1, temperature information detected by an environment temperature sensor, a condensation sensor and a defrosting sensor is respectively obtained;

step S2, controlling the rotating speed of the condensing fan of the refrigerator according to the temperature information;

It should be noted that the technical solution provided in this embodiment is applicable to an air-cooled refrigerator with an external condenser. The condensation sensor is arranged on the condenser, and the defrosting sensor is arranged on the evaporator of the freezing chamber.

In specific practice, the method further comprises:

It will be appreciated that the condensing fan is intended to dissipate heat from the external condenser of the refrigeration system of the refrigerator and from the compressor compartment in which the compressor is located. When the compressor of the refrigerator is started, the refrigeration requirement is indicated, and then in order to ensure the better work of the compressor, the condensing fan is controlled to be synchronously started, namely: and taking the working signal of the compressor as the working signal of the condensing fan. The compressor is started, and the condensing fan is started; the compressor is stopped and the condensing fan is stopped.

It should be noted that, in the present embodiment, the "condensation fan is powered on" does not refer to turning on the condensation fan, and whether to turn on the condensation fan needs to be further determined according to the ambient temperature, specifically:

It can be understood that when the ambient temperature is low, the refrigeration system and the compressor chamber can naturally dissipate heat to meet the refrigeration requirement without starting the condensing fan. The preset temperature is set according to the user requirements, or is set according to historical experience values, or is set according to experimental data.

After the condensing fan opened, can further carry out fine control through the temperature that the condensation sensor detected, include:

Wherein, it is first rotational speed to improve the rotational speed of condensing fan, specifically does:

It can be understood that when the temperature of the condenser is higher than the ambient temperature, the cooling effect of the condenser is not good, and the rotating speed of the condensing fan is required to be increased. For example, the condensing fan speed is increased by 1 step every 2 deg.c difference. In a specific practice, the preset amplitude is set according to a user requirement, or is set according to a historical experience value, or is set according to experimental data.

More in order to fully cover the situation of high load operation of the refrigerator, the present embodiment also proposes to control the operation state of the condensing fan using the temperature detected by the frost sensor in the refrigerator, including:

It should be noted that the preset temperature interval is set according to the user requirement, or is set according to a historical experience value, or is set according to experimental data. For example, set to 0 ℃ or higher.

In a specific practice, if the first rotation speed or the second rotation speed is higher than the maximum rotation speed of the condensing fan, the condensing fan is controlled to operate at the maximum rotation speed.

It can be understood that, according to the technical scheme provided by this embodiment, the temperature information detected by the ambient temperature sensor, the condensation sensor and the defrosting sensor is obtained respectively, and according to the temperature information, the rotating speed of the refrigerator condensing fan is controlled, compared with the prior art in which the operating state of the refrigerator condensing fan is controlled only by considering the ambient temperature, the technical scheme provided by this embodiment more comprehensively covers the situation of high-load operation of the refrigerator, has higher control precision and wider applicable scene, can better meet the heat dissipation requirements of an external condenser and a compressor bin in a refrigerator refrigeration system, improves the refrigeration effect of the refrigerator, and has good user experience and high satisfaction.

Example two

Fig. 2 is a schematic block diagram illustrating a refrigerator condensing fan control system 100 according to an exemplary embodiment, as shown in fig. 2, the system 100 including:

the acquiring module 101 is used for respectively acquiring temperature information detected by an environment temperature sensor, a condensation sensor and a defrosting sensor;

the control module 102 is used for controlling the rotating speed of the condensing fan of the refrigerator according to the temperature information;

In particular practice, the control module 102 is further configured to:

EXAMPLE III

A refrigerator shown according to an exemplary embodiment includes:

the control system of the condensing fan of the refrigerator.

It can be understood that, according to the technical scheme provided by this embodiment, since the refrigerator condensing fan control system includes the above-mentioned refrigerator condensing fan control system, and the above-mentioned refrigerator condensing fan control system can control the rotating speed of the refrigerator condensing fan by respectively obtaining the temperature information detected by the ambient temperature sensor, the condensation sensor, and the defrosting sensor, compared with the prior art in which the operating state of the refrigerator condensing fan is controlled only by considering the ambient temperature, the technical scheme provided by this embodiment more comprehensively covers the situation of high-load operation of the refrigerator, has higher control accuracy, and wider applicable scenes, and can better satisfy the heat dissipation requirements of the external condenser and the compressor compartment in the refrigerator refrigeration system, thereby improving the refrigeration effect of the refrigerator, and having good user experience and high satisfaction.

Example four

A refrigerator shown according to an exemplary embodiment includes:

a memory for storing program instructions;

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.

It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.

It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A method for controlling a condensing fan of a refrigerator is characterized by comprising the following steps:

2. The method of claim 1, further comprising:

3. The method of claim 1, wherein the controlling a rotational speed of a condensing fan of a refrigerator according to the temperature information comprises:

4. The method of claim 3, further comprising:

5. The method according to claim 4, wherein the increasing the rotation speed of the condensing fan is a first rotation speed, in particular:

6. The method of claim 4, further comprising:

7. The method of any one of claims 4 to 6, further comprising:

8. A refrigerator condensing fan control system, comprising:

9. A refrigerator, characterized by comprising:

a refrigerator condensing fan control system according to claim 8.

10. A refrigerator, characterized by comprising:

a memory for storing program instructions;