JP2023503166A - Air-cooling equipment control method and air-cooling equipment - Google Patents

Abstract

The present invention discloses a control method for air cooling equipment and an air cooling equipment. The air cooling equipment uses the structural design of a single evaporator, a single evaporator fan, two communication ports and three heating wires, and combines the control of the working relationship between the compressor, the evaporator fan, the heating wires and the communication ports. . The two compartments achieve simultaneous cooling through the operation of the compressor and evaporator fans and the opening of the first and second communication ports. Simultaneous heating is achieved by stopping the compressor, activating the evaporator fan, opening the first and second communication ports, and activating the first heating wire, the second heating wire and the compensating heating wire. Single chamber cooling through operation of the compressor and evaporator fans, opening of the first communication port, closing of the second communication port, activation of the second heating wire, combination of cooling and heating requirements and limiting conditions such as defrost temperature At the same time, single room heating is realized. The control of the above three methods is combined to achieve constant temperature control of the dual temperature zone air cooling equipment of the single air cooling system with simple structure and process design. [Selection drawing] Fig. 2

Description

TECHNICAL FIELD The present invention relates to the technical field of air-cooling equipment, and more particularly to a control method for air-cooling equipment and air-cooling equipment.

In air-cooled installations such as wine cabinets, for dual temperature zone products, this is usually achieved by using a single evaporator and twin evaporator fans. A corresponding evaporator fan is activated to provide cooling for the target compartment. This method has a simple structure, but the channeling of cold air is more serious, and the temperature cannot be kept constant at low ambient temperatures.

Constant temperature control can ensure the storage and best mouthfeel of stored goods such as wine. When the first compartment needs to be cooled, the solenoid valve switches the first compartment, the evaporator in the first compartment creates cold air, and the evaporator fan in the first compartment operates. , when the second compartment needs to be cooled, the solenoid valve switches the second compartment, the evaporator in the second compartment creates cold air, the evaporator fan in the second compartment operates, and the two compartments switch between each other; When each compartment needs to be heated, the heating wire in this compartment is activated and the evaporator fan is activated. Such a method can achieve constant temperature control, but has problems such as complicated structural design and complicated manufacturing process.

The object of the present invention is to use the structural design of a single evaporator, a single evaporator fan, two communication ports and three heating wires, and to determine the working relationship between the compressor, the evaporator fan, the heating wires and the communication ports. To provide an air-cooling equipment control method and air-cooling equipment that combine controls and achieve constant temperature control of dual temperature zones in a single air-cooling system with simplified structural design and technology.

The present invention takes the following technical measures to solve the above technical problems.

The present invention proposes a control method for an air-cooling equipment, wherein the air-cooling equipment comprises a box body, a liner installed in the box body and divided into a first compartment and a second compartment, and a first compartment. A unit comprising a first heating wire, a second heating wire installed in the second compartment, a circulation air passage, a compressor, an evaporator, and a defrosting sensor for detecting the defrosting temperature on the evaporator. a circulation cooling system, an evaporator fan attached to the outside of the liner, a first communication port provided in the first compartment and communicating with the circulation air passage, and a circulation and a second communication port communicating with the air passage. The control method according to the present invention includes the steps of controlling the operation of the compressor and the evaporator fan, opening the first communication port and closing the second communication port, activating the second heating wire, and setting the first private room. a step of controlling to stop the compressor when the cooling temperature is reached, and delaying the closing operation of the first communication port until the defrosting temperature reaches the first set temperature; , turning off the second heating wire and delaying the opening operation of the second communication port until the defrosting temperature reaches the second set temperature after the first communication port is closed.

Further, the control method includes the step of controlling the evaporator fan to stop when the defrosting temperature reaches the first set temperature; and when the defrosting temperature reaches the second set temperature, the second compartment is and controlling the evaporator fan to operate until the heating temperature is reached.

Further, the air-cooling equipment further includes a compensating heating wire provided behind the evaporator, and the control method further includes starting the compensating heating wire after the compressor stops.

In the step of activating the compensating heating wire, the compensating heating wire is activated according to the 100% duty ratio.

Further, the control method further includes opening the first communication port and the second communication port, controlling the operation of the evaporator fan, and activating the first heating wire, the second heating wire and the compensating heating wire.

The present invention comprises a box body, a liner attached in the box body and divided into a first compartment and a second compartment, a first heating wire attached in the first compartment, and a A single circulation cooling system comprising a second heating wire, a circulation air passage, a compressor and an evaporator, wherein the evaporator is equipped with a defrost sensor for detecting the defrost temperature, and an evaporator mounted outside the liner. We propose an air-cooling facility equipped with a device fan. The air cooling equipment according to the present invention includes a first communication port provided in the first private room and communicating with the circulation air passage, and a second communication port provided in the second private room and communicating with the circulation air passage. and controls the operation of the compressor and the evaporator fan, opens the first communication port and closes the second communication port, activates the second heating wire, and when the first compartment reaches the set cooling temperature, Control to stop the compressor, delay the closing operation of the first communication port until the defrosting temperature reaches the first set temperature, turn off the second heating wire when the second compartment reaches the heating temperature, a single chamber air cooling/heating control module for delaying the opening of the second communication port until the defrosting temperature reaches the second set temperature after the first communication port is closed;

Further, the single-chamber air cooling/heating control module controls the evaporator fan to stop when the defrost temperature reaches the first set temperature, and controls the evaporator fan to stop when the defrost temperature reaches the second set temperature. An evaporator fan control unit is provided for controlling the operation of the evaporator fan until the compartment reaches the heating temperature.

The air cooling equipment according to the present invention further comprises a compensating heating wire provided behind the evaporator, and a compensating heating control module for starting the compensating heating wire after the compressor stops.

Moreover, the compensating heating control module is used to activate the compensating heating wire according to the 100% duty ratio.

The air cooling equipment according to the present invention opens the first communication port and the second communication port, controls the operation of the evaporator fan, and activates the first heating wire, the second heating wire, and the compensating heating wire. Further comprising an overall heating control module.

The advantages and advantageous effects of the present invention compared with the prior art are as follows. In the air cooling equipment control method and air cooling equipment provided by the present invention, a single circulation cooling system is used, and the structure is composed of a circulation air passage, a compressor, a single evaporator, a single evaporator fan, and a first compartment and a second compartment. When both compartments need to be cooled, the compressor and evaporator fan are started, Open two communication ports; when both compartments need to be heated, control the compressor stop and control the operation of the evaporator fan, close the two communication ports, and activate the heating wire in the compartment. When one compartment needs to be cooled and the other compartment needs to be heated, the communication port of the compartment to be cooled is opened, the communication opening of the compartment to be heated is closed, and the compartment is to be heated. The heating wire of the private room is activated, and when the private room to be cooled reaches the set cooling temperature, the compressor is controlled to stop, and the private room to be cooled is controlled until the defrosting temperature reaches the first set temperature. The closing operation of the communication port is delayed, and when the private room to be heated reaches the heating temperature, the heating wire is turned off, and after the communication port of the private room to be cooled is closed, the defrosting temperature reaches the second set temperature. Delay the opening of the communication port of the private room to be heated until it reaches; Combining the control of the above three methods, the structure of a single air cooling system can individually control the constant temperature of the two private rooms. Compared with the conventional method of twin evaporators, twin evaporator fans, two heating wires and solenoid valves that can be realized, the structural design and process of the single air cooling system are more simplified, and the simplified structure and process design can Realize constant temperature control of dual temperature zone air cooling equipment in one air cooling system.

Other features and advantages of the invention will become more apparent after reading the detailed description of embodiments of the invention with reference to the drawings.

1 is a structural schematic diagram of an embodiment of an air cooling equipment proposed by the present invention; FIG. 1 is a flow chart of an embodiment of a control method for air cooling equipment proposed by the present invention; 1 is a functional configuration diagram of an embodiment of air cooling equipment proposed by the present invention; FIG.

Specific embodiments of the present invention will be described in further detail below with reference to the drawings.

As shown in FIG. 1, the air cooling equipment proposed by the present invention comprises a box 1 and a liner 2. As shown in FIG. The liner 2 is installed in the box 1, the internal cavity of the liner 2 is divided into the first private room 3 and the second private room 4, the first heating wire 5 is installed in the first private room 3, and the second private room 4 The second heating wire 6 is attached to. Air-cooled equipment provides cooling with a single circulation cooling system. The single circulation cooling system comprises a circulation air passage 7 , a compressor 8 and an evaporator 9 provided behind the outside of the liner 2 . An evaporator fan 10 is provided behind the outside of the liner 2, and a defrosting sensor (not shown) is attached to the evaporator fan 10 to detect the defrosting temperature. A first communication port 11 is provided in the first private room 3 . The first communication port 11 communicates with the circulation air passage 7 . A second communication port 12 is provided in the second private room 4 . The second communication port 12 communicates with the circulation air passage 7 .

The present invention proposes a control method for the configuration of the air cooling equipment shown in FIG. The control method achieves constant temperature control of dual temperature zones in a single circulation cooling system, specifically, as shown in FIG. 2, includes the following steps.

Step S21: Start the compressor and the evaporator fan, and open the first communication port and the second communication port.

Taking the cooling start-up of the air-cooling equipment as an example, after turning on the power of the air-cooling equipment, first start the single circulation cooling system, open the first communication port 11 and the second communication port 12, open the first private room 3 and the second private room 4 are cooled respectively.

Step S22: Judge whether the cooling temperatures of the two compartments meet the cooling requirements.

While individually cooling the two compartments, determine whether the cooling temperatures of the two compartments meet their respective cooling requirements. After cooling for a period of time, there are two situations for cooling the two compartments. That is, Situation 1 is the situation where any cooling requirements must be met and go to constant temperature regulation. Situation 2 is a situation where one compartment meets the cooling requirements and needs to go to constant temperature control, but the other compartment does not meet the cooling requirements and needs to continue cooling.

Based on the above two situations, the control method proposed by the present invention performs different steps respectively. When situation 1 occurs first, control the compressor to stop, open the first and second communication ports, control the evaporator fan to keep running, and control the first heating wire and the second heating wire. is executed in step S23.

After both of the two compartments meet the cooling requirements, the first heating wire 5 of the first compartment 3 and the second heating wire 6 of the second compartment 4 are activated respectively through the control of the step to obtain 2 Constant temperature control is implemented for two private rooms. In the embodiment of the present invention, a compensating heating wire 13 is also installed behind the evaporator 9, and during constant temperature control, the defrosting time of the evaporator 9 is shortened through the operation of the compensating heating wire 13, so that the evaporator can be The surface temperature of 9 rises quickly, and through the operation of the evaporator fan 10, compensation heating is performed for constant temperature control in the compartment. Specifically, when the compressor 8 is stopped and the constant temperature control is started, the operation of the evaporator fan 10 is maintained, the first communication port 11 and the second communication port 12 are kept open, and the compensating heating wire 13 is activated. When the two compartments regulate the temperature through their own heating wires, the heat from the compensating heating wires 13 will enter the first compartment 3 through the first communication port 11 by the action of the evaporator fan 10, and the second It enters the second compartment 4 via the two communication ports 12 and compensates for the temperature of each of the two compartments.

If situation 2 occurs first, or if there is a situation in which one compartment needs to be heated and the other compartment needs to be cooled in the constant temperature control process of step S23, the first compartment 3 is cooled. The operation of the compressor and the evaporator fan is controlled, the first communication port is opened, the second communication port is closed, and the second heating wire is activated step S24. to run.

Start the compressor 8, continue to operate the evaporator fan 10, open the first communication port 11 and close the second communication port 12, start the second heating wire 6 and continue to operate, single circulation cooling system , enters the first private room 3 through the first communication port 11 and cools the first private room 3. Since the second communication port 12 is closed, cold air does not enter the second private room 4 and the second heating wire 6 continues to heat it. During this time, when the first compartment 3 reaches the set cooling temperature again, control is performed to stop the compressor, and step S25 is performed to delay the closing operation of the first communication port until the defrosting temperature reaches the first set temperature. Run.

After the first compartment 3 meets the cooling requirements again, the compressor 8 is controlled to stop, the defrosting temperature detected by the defrosting sensor is obtained, and when the defrosting temperature reaches the first set temperature T1, the first Close the communication port 11 .

Immediately after the compressor 8 stops, the compensating heating wire 13 is activated to assist the defrosting of the evaporator 9 and quickly raise the surface temperature of the evaporator 9, thereby preparing for the subsequent constant temperature control of the private room. .

Step S26: Delay opening the second communication port until the defrosting temperature reaches the second set temperature after the first communication port is closed.

After the first communication port 11 is closed, the heating of the second compartment 4 is continued, the defrosting temperature detected by the defrosting sensor is obtained, and when the defrosting temperature reaches the second set temperature T2, the second communication port 12 open. During the time from when the compressor 8 is stopped until the second communication port 12 opens, the compensating heating wire 13 is activated and operated, so the defrosting temperature on the surface of the evaporator 9 is relatively high, and the second communication Heating of the second compartment 4 can be compensated for after the mouth 12 is opened. This accelerates the constant temperature control to the second private room 4 .

Step S27: Turn off the second heating wire when the second compartment reaches the heating temperature.

Regarding the control of the evaporator fan 10, when the defrosting temperature reaches the first set temperature T1, that is, when the first communication port 11 is closed in step S25, the evaporator fan 10 is controlled to stop. At this time, the compensating heating wire 13 is activated to assist defrosting of the evaporator 9, thereby quickly raising the defrosting temperature. When the defrosting temperature reaches the second set temperature T2, i.e., after the second communication port is opened in step S26, the evaporator fan 10 is started and operated again. and further accelerate the constant temperature regulation of the second compartment 4 until it closes after reaching the heating temperature.

Then, when the two compartments need to be repeatedly cooled or heated in a constant temperature control process, the control solutions given from the above steps are combined. The two compartments can be separately thermostatted by simultaneous cooling, simultaneous heating, and single cooling/single heating methods. Compared with the conventional method of twin evaporators, twin evaporator fans, two heating wires and solenoid valves, which can realize constant temperature control, the technical measures of the present invention are based on a single circulation cooling system to realize , the structure design and process are simpler, the simple structure and process design can realize the constant temperature control of the dual temperature zone air cooling equipment of the single air cooling system, which is more suitable for industrial application.

After step S26, when the compressor 8 is restarted, it is necessary to close the second communication port 12 immediately. That is, as long as the compressor 8 is running, the currently heated compartment's vents must be closed to avoid the effect of cold air on the heating.

After the first heating wire 5 and the second heating wire 6 are activated, they operate according to the duty ratio required by the heating range, and the compensating heating wire 13 operates according to the duty ratio of 100% after starting.

According to the control method of air cooling equipment proposed above, as shown in FIG. and a control module 33 . A total air cooling control module 31 is used to control the operation of the compressor 8 and the evaporator fan 10 and to open the first communication port 22 and the second communication port 12 . The total heating control module 32 controls the compressor 8 to stop, opens the first communication port 11 and the second communication port 12, controls the operation of the evaporator fan 10, the first heating wire 5, the second It is used to start and operate the hot wire 6 and the compensating hot wire 13 . The single-chamber air cooling/heating control module 33 controls the operation of the compressor 8 and the evaporator fan 10, opens the first communication port 11 and closes the second communication port 12, activates the second heating wire 6, and When the first private room 3 reaches the set cooling temperature, the compressor 8 is controlled to stop, the closing operation of the first communication port 11 is delayed until the defrosting temperature reaches the first set temperature T1, and the second private room 4 reaches the heating temperature, the second heating wire 6 is turned off, and after the first communication port 11 is closed, the opening operation of the second communication port 12 is delayed until the defrosting temperature reaches the second set temperature T2. used for

The single compartment air cooling/heating control module 33 controls the evaporator fan 10 to stop when the defrosting temperature reaches the first set temperature T1, and the second compartment when the defrosting temperature reaches the second set temperature T2. 4 includes an evaporator fan control unit 331 for controlling the operation of the evaporator fan 10 until the heating temperature is reached.

The air cooling equipment proposed by the present invention includes a compensating heating control module 34 for starting the compensating heating wire 13 after the compressor 8 stops, specifically for activating the compensating heating wire 13 according to the 100% energization rate. Prepare more.

Specifically, since the control method for realizing constant temperature control in the air-cooling equipment has been described in detail above, the description thereof will be omitted here.

The above description is not intended to limit the present invention, and the present invention is not limited to the above examples. It should be pointed out that permutations are also included in the protection scope of the present invention.

Claims (10)

A control method for air cooling equipment,
The air cooling equipment is
a box and
a liner attached to the box body and divided into a first private room and a second private room;
a first heating wire attached in the first compartment;
a second heating wire attached in the second compartment;
a single circulation cooling system comprising a circulation air passage, a compressor, an evaporator, and a defrost sensor for detecting a defrost temperature on the evaporator;
an evaporator fan mounted outside the liner;
a first communication port provided in the first private room and communicating with the circulation air passage;
a second communication port provided in the second private room and communicating with the circulation air passage;
The control method is
controlling the operation of the compressor and the evaporator fan, opening the first communication port and closing the second communication port, and activating the second heating wire;
when the first compartment reaches a set cooling temperature, controlling the compressor to stop and delaying the closing operation of the first communication port until the defrosting temperature reaches a first set temperature;
When the second compartment reaches the heating temperature, the second heating wire is turned off, and after the first communication port is closed, the second communication port is opened until the defrosting temperature reaches the second set temperature. and a step of delaying controlling the evaporator fan to stop when the defrosting temperature reaches the first set temperature;
when the defrosting temperature reaches the second set temperature, controlling the evaporator fan to operate until the second compartment reaches the heating temperature;
The method for controlling air cooling equipment according to claim 1, further comprising: The air cooling equipment further comprises a compensating heating wire provided behind the evaporator,
2. The control method of air-cooling equipment according to claim 1, further comprising the step of activating the compensating heating wire after the compressor stops. 4. The control method of air-cooling equipment according to claim 3, wherein in the step of activating the compensating heating wire, the compensating heating wire is activated according to a 100% energization rate. The method further comprises opening the first communication port and the second communication port, controlling the operation of the evaporator fan, and activating the first heating wire, the second heating wire and the compensating heating wire. The method for controlling air cooling equipment according to claim 1, wherein a box and
a liner attached to the box body and divided into a first private room and a second private room;
a first heating wire attached in the first compartment;
a second heating wire attached in the second compartment;
a single circulation cooling system comprising a circulation air passage, a compressor, and an evaporator, wherein the evaporator is fitted with a defrost sensor for detecting a defrost temperature;
an evaporator fan mounted outside the liner;
An air cooling facility comprising
a first communication port provided in the first private room and communicating with the circulation air passage;
a second communication port provided in the second private room and communicating with the circulation air passage;
The operation of the compressor and the evaporator fan is controlled, the first communication port is opened and the second communication port is closed, the second heating wire is activated, and the first compartment is cooled to a set cooling temperature. When it reaches, the compressor is controlled to stop, the closing operation of the first communication port is delayed until the defrosting temperature reaches the first set temperature, and when the second compartment reaches the heating temperature, the second 2 a single-chamber air cooling/heating control module for turning off the heating wire and delaying the opening of the second communication port until the defrosting temperature reaches a second set temperature after the first communication port is closed;
An air cooling facility, further comprising: The single compartment air cooling/heating control module controls the evaporator fan to stop when the defrost temperature reaches the first set temperature, and the second compartment shuts down when the defrost temperature reaches the second set temperature. 7. Air cooling installation according to claim 6, characterized in that it comprises an evaporator fan control unit for controlling the operation of the evaporator fan until the heating temperature is reached. a compensating heating wire provided behind the evaporator;
a compensation heating control module for activating the compensation heating wire after the compressor has stopped;
7. The air cooling equipment of claim 6, further comprising: The air cooling equipment according to claim 8, characterized in that the compensating heating control module is used to activate the compensating heating wire according to a 100% energization rate. A total heating control module for opening the first communication port and the second communication port and controlling the operation of the evaporator fan, wherein the first heating wire, the second heating wire and the compensating heating wire are 7. An air cooling installation according to claim 6, further comprising an overall heating control module for activation.

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