CN108006924A - Air-conditioning and its control method - Google Patents

Abstract

The present invention provides a kind of air-conditioning and its control method.This method is suitable for the air-conditioning with two axial-flow fans, and for preventing that indoor unit first interval internal temperature is excessive, influences ambient temperature detection device normal work.The air conditioning control method of the present invention determines the heat exchange efficiency of the first section of heat exchanger according to the open and-shut mode of two axial-flow fans first, then determines the operational mode of two axial-flow fans of air-conditioning again.The method of the present invention is when the first zone temperatures of machine heat exchanger are higher indoors, by the operating status for controlling the first axial-flow fan, adjust the heat exchange efficiency of the first section of indoor set heat exchanger, adjust the temperature of first interval, it can timely and effectively prevent that the temperature of indoor unit first interval is excessive, influence ambient temperature detection device normal work.

Description

Air conditioner and its control method

technical field

The invention relates to the field of air conditioners, in particular to an air conditioner and a control method thereof.

Background technique

When the air conditioner is heating, the refrigerant passes through the compressor, evaporator and condenser in sequence. The evaporator is kept at low temperature for a long time, which may cause the internal temperature of the indoor unit to be high.

The existing air conditioner is generally equipped with a temperature sensor to detect the indoor ambient temperature. The temperature sensor monitors the indoor ambient temperature in real time and compares it with the indoor target temperature set by the user. The air conditioner sets the working state according to the above comparison results to achieve the best Excellent heating effect. However, due to the high internal temperature of the indoor unit during heating, it may affect the normal operation of the temperature sensor, resulting in higher detection data of the temperature sensor than the actual ambient temperature. If the temperature detected by the temperature sensor is higher than the actual temperature, the air conditioner will be shut down in advance before the indoor temperature reaches the target temperature, which will affect the user experience.

Contents of the invention

In view of the above problems, the present invention is proposed to provide an air conditioner and a control method thereof that overcome the above problems or at least partly solve the above problems.

A further object of the present invention is to prevent the high temperature inside the indoor unit from affecting the normal operation of the ambient temperature detection device.

Another further purpose of the present invention is to improve user experience.

According to one aspect of the present invention, the present invention provides an air conditioner control method. The interior of the indoor unit of the air conditioner includes a first section and a second section divided horizontally along the indoor unit. The first cross-flow fan and the second cross-flow fan are respectively Arranged inside the first section and the second section, the heat exchanger of the indoor unit extends laterally along the indoor unit, and includes a first section located in the first section and a second section located in the second section. A coil temperature detection device for detecting the temperature of the first section of the heat exchanger of the indoor unit and an ambient temperature detection device for detecting the indoor ambient temperature are provided. The control method includes: during the heating process of the air conditioner, two cross-flow The open and close state of the fan; use the coil temperature detection device to continuously detect the temperature of the first section of the indoor heat exchanger; The operating mode of the flow fan.

Optionally, the step of determining the operation modes of the two cross-flow fans according to the on-off state of the cross-flow fans and the temperature of the first section of the heat exchanger of the indoor unit includes: judging whether the first cross-flow fan is in the off state, and the second The second cross-flow fan is turned on; if so, determine whether the temperature of the first section of the heat exchanger of the indoor unit is higher than or equal to the first preset temperature; if so, turn on the first cross-flow fan and control the first cross-flow fan to continue to Run at a preset speed; if not, determine whether the temperature of the first section of the heat exchanger of the indoor unit is lower than the first preset temperature and higher than the second preset temperature; if yes, control the first cross-flow fan to run intermittently; if not , keep the first cross-flow fan off; and if not, adjust the speeds of the two cross-flow fans according to user instructions; wherein the first preset temperature is greater than the second preset temperature.

Optionally, the step of controlling the intermittent operation of the first cross-flow fan includes: turning on the first cross-flow fan, and controlling the first cross-flow fan to continue to run at a preset speed for a preset time; closing the first cross-flow fan to make it stop running Preset time; the above steps are repeated cyclically to realize the intermittent operation of the first cross-flow fan.

Optionally, the above control method further includes: using the ambient temperature detection device to continuously detect the indoor ambient temperature; judging whether the indoor ambient temperature is higher than or equal to the target temperature set by the user; if so, controlling the air conditioner compressor to stop and suspend heating.

Optionally, after the step of continuously operating the first cross-flow fan at a preset speed and controlling the intermittent operation of the first cross-flow fan, the step further includes: when it is detected that the temperature of the first section of the heat exchanger of the indoor unit is lower than or equal to the second When the temperature is preset, the first cross-flow fan is turned off.

According to another aspect of the present invention, the present invention also provides an air conditioner, including: an indoor unit, the inside of which includes a first section and a second section divided horizontally along the indoor unit, and the indoor unit includes: a first cross-flow fan, Set inside the first section; the second cross-flow fan, set inside the second section; the indoor unit heat exchanger, set inside the indoor unit, and extends laterally along the indoor unit, including the first zone located in the first section section and the second section located in the second section; the coil temperature detection device is set inside the first section to detect the temperature of the first section of the indoor unit heat exchanger; the ambient temperature detection device is set in the first section Inside, it is used to detect the indoor ambient temperature; the compressor is configured to compress the refrigerant for heating; the state acquisition device is configured to obtain the on-off status of the two cross-flow fans; the control device is electrically connected to the coil temperature detection device and the state acquisition device connected and configured to determine the operating modes of the two cross-flow fans according to the on-off status of the cross-flow fans and the temperature of the first section of the heat exchanger of the indoor unit.

Optionally, the control device is further configured: when the first cross-flow fan is in the off state, the second cross-flow fan is in the on state, and the temperature of the first section of the heat exchanger of the indoor unit is higher than or equal to the first preset temperature When the first cross-flow fan is turned on and the first cross-flow fan is controlled to continue to run at the preset speed; when the first cross-flow fan is off, the second cross-flow fan is on, and the indoor unit heat exchanger When the temperature in one section is lower than the first preset temperature and higher than the second preset temperature, the intermittent operation of the first cross-flow fan is controlled; when the first cross-flow fan is off and the second cross-flow fan is on state, and the temperature of the first section of the indoor unit heat exchanger is lower than or equal to the second preset temperature, keep the first cross-flow fan off; and when the first cross-flow fan is on or the second When the cross-flow fan is off, adjust the speed of the two cross-flow fans according to user instructions.

Optionally, the control device is also configured to: turn on the first cross-flow fan, and control the first cross-flow fan to continue to run at a preset speed for a preset time; turn off the first cross-flow fan to stop running for a preset time; repeat the cycle The above steps are used to realize the intermittent operation of the first cross-flow fan.

Optionally, the control device is further configured to: when the indoor ambient temperature is higher than or equal to the target temperature set by the user, control the air conditioner compressor to stop, and suspend heating.

Optionally, the control device is further configured to: when it is detected that the temperature of the first section of the heat exchanger of the indoor unit is lower than or equal to the second preset temperature, turn off the first cross-flow fan.

The invention provides an air conditioner control method, which is suitable for an air conditioner with two cross-flow fans, and is used to prevent the internal temperature of the first section of the indoor unit from being too high and affecting the normal operation of the ambient temperature detection device. Since the open and close states of the two cross-flow fans of the air conditioner may be different, the heat exchange efficiency of the first section and the second section of the heat exchanger of the indoor unit will be different, especially when the first cross-flow fan is turned off, the indoor The heat exchange efficiency of the first section of the machine heat exchanger is poor, the internal heat in the first section of the air conditioner cannot be dissipated, and the internal temperature rises. The air conditioning control method of the present invention firstly determines whether the first section of the heat exchanger can dissipate heat normally according to the open and close states of the two cross-flow fans, and then adjusts the operation mode of the two cross-flow fans. In the method of the present invention, when the temperature of the first section of the indoor unit heat exchanger is high, the heat exchange efficiency of the first section of the indoor unit heat exchanger is adjusted by controlling the operating state of the first cross-flow fan, and the temperature of the first section is adjusted. The temperature can timely and effectively prevent the temperature in the first section of the indoor unit from being too high, which will affect the normal operation of the ambient temperature detection device.

Furthermore, the method of the present invention also controls the shutdown of the air conditioner compressor and suspends heating when the indoor ambient temperature is higher than or equal to the target temperature set by the user, so as to prevent the indoor temperature from being too high and the user feeling overheated, which increases the user's usage experience.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

FIG. 1 is a schematic diagram of an air conditioner according to an embodiment of the present invention;

Fig. 2 is an exploded schematic diagram of an air conditioner according to an embodiment of the present invention;

Fig. 3 is a schematic block diagram of an air conditioner according to an embodiment of the present invention;

Fig. 4 is a schematic diagram of an air conditioner control method according to an embodiment of the present invention;

Fig. 5 is a flowchart of an air conditioner control method according to an embodiment of the present invention.

Detailed ways

This embodiment firstly provides an air conditioner, including: a refrigeration/heating cycle system composed of a compressor 100 , an indoor unit heat exchanger 300 , and an outdoor unit heat exchanger 200 . When the air conditioner is heating, the refrigerant passes through the compressor 100 , the heat exchanger 300 of the indoor unit and the heat exchanger 200 of the outdoor unit in sequence.

The above-mentioned indoor unit includes: a housing, a first cross-flow fan 310 , a second cross-flow fan 320 , two air outlets 330 , an indoor unit heat exchanger 300 and a temperature detection device 410 . The interior of the indoor unit includes a first section and a second section divided horizontally along the indoor unit. The first cross-flow fan 310 is set inside the first section; the second cross-flow fan 320 is set inside the second section, that is to say, the two cross-flow fans are respectively set on the left and right sides inside the indoor unit. The section may represent the left space or the right space inside the indoor unit. Two air outlets 330 are arranged on the front bottom of the indoor unit casing, and the two air outlets 330 correspond to the first cross-flow fan 310 and the second cross-flow fan 320 in the lateral direction of the indoor unit, so as to allow the first cross-flow fan to 310 and the second cross-flow fan 320 are blown by their respective air outlets 330 .

In this embodiment, preferably, the size and type of the two cross-flow fans are equal, and the two cross-flow fans are arranged coaxially. The user can control the above two cross-flow fans to be turned on and off through the remote controller. The two cross-flow fans can be turned on at the same time to supply air to the entire indoor space area, or one of them can be turned on independently to realize that the air conditioner indoor unit only supplies air to the left or right area of the room.

The indoor unit heat exchanger 300 is disposed inside the indoor unit and extends laterally of the indoor unit. The top of the indoor unit housing is also provided with an air inlet 340 extending laterally along the indoor unit, and the indoor unit heat exchanger 300 is arranged in the area between the two cross-flow fans and the air inlet 340 . The indoor unit heat exchanger 300 extends across the entire lateral range of the indoor unit, and the indoor unit heat exchanger 300 includes a first section located in the first section and a second section located in the second section.

The coil temperature detection device 410 is disposed on the coil surface of the first section of the indoor heat exchanger 300 for detecting the temperature of the indoor heat exchanger 300 . In this embodiment, the temperature detection device 410 is arranged in the first section near the lateral end of the casing, which is closer to the air conditioner computer board, which is convenient for circuit routing and connection. Therefore, the data detected by the temperature detection device 410 is the temperature value of the first section of the heat exchanger of the indoor unit. The ambient temperature detection device 420 is disposed on the casing of the first section, and is used for detecting the indoor ambient temperature. Both the coil temperature detection device 410 and the ambient temperature detection device 420 may be temperature sensors.

The above-mentioned air conditioner further includes: a state acquisition device 430 and a control device 500 . The state acquiring device 430 is configured to acquire the open and close states of the two cross-flow fans according to user instructions. The control device 500 is electrically connected to the temperature detection device 410 and the state acquisition device 430, configured to determine the operation mode of the two cross-flow fans according to the on-off status of the cross-flow fans and the temperature of the first section of the indoor unit heat exchanger. In this embodiment, the above-mentioned state acquisition device 430 is connected to the air conditioner computer board, and the air conditioner computer board obtains the user's remote control instruction, and the state acquisition device 430 determines the operating state of the two cross-flow fans through the user's setting instruction. The above-mentioned control device 500 may be a computer board of the air conditioner, and the computer board is used to control the overall operation state of the air conditioner.

The on/off state of the cross-flow fan affects the temperature of the indoor unit heat exchanger 300 . When a certain cross-flow fan is turned on, the heat exchange efficiency of the heat exchanger section corresponding to the cross-flow fan and the ambient air is high, and the temperature of the heat exchanger section is low when the air conditioner is heating. Conversely, when a certain cross-flow fan is turned off, the heat exchange efficiency between the heat exchanger section corresponding to the cross-flow fan and the ambient air is low, and the temperature of the heat exchanger section is relatively high when the air conditioner is heating. The air conditioner control device 500 of this embodiment first determines whether there is a possibility that the temperature of the above two heat exchanger sections is too high due to the cross-flow fans not being turned on according to the on-off status of the two cross-flow fans, and then according to the first zone The temperature of the section determines the operation mode of the two cross-flow fans, so as to prevent the internal temperature of a certain section from being too high and affecting the normal operation of the ambient temperature detection device 420 .

The control device 500 is further configured such that when the first cross-flow fan 310 is in the off state, the second cross-flow fan 320 is in the on state, and the temperature of the first section of the heat exchanger of the indoor unit is higher than or equal to the first preset temperature, Next, turn on the first cross-flow fan 310 and control the first cross-flow fan 310 to continue to run at a preset speed; when the first cross-flow fan 310 is off, the second cross-flow fan 320 is on, and the heat exchange of the indoor unit When the temperature of the first section of the device is lower than the first preset temperature and higher than the second preset temperature, the first cross-flow fan 320 is controlled to run intermittently. The control device 500 is further configured to keep The off state of the second cross-flow fan 320 . The above-mentioned first preset temperature may be 57°C, and the above-mentioned second preset temperature may be 50°C. The preset rotational speed mentioned above can be set to 450rpm.

When the air conditioner is heating, the air conditioner first obtains the indoor target temperature set by the user, and the target temperature is the expected indoor temperature. The ambient temperature detection device 420 continuously detects the indoor ambient temperature and determines whether it is higher than the target temperature. If the indoor ambient temperature is higher than this temperature, the air conditioner controls the compressor to stop and suspends heating to prevent the indoor temperature from being too high and affecting the comfort of the user. However, for an air conditioner with double cross-flow fans, when the first cross-flow fan 310 is off and the second cross-flow fan 320 is on, the heat exchange efficiency of the first section of the indoor unit heat exchanger is low, and the first The temperature in the interval is high, and the high temperature may affect the normal operation of the ambient temperature detection device. In the above cases, the temperature detected by the ambient temperature detection device may be higher than the actual ambient temperature. In the air conditioner of the present invention, when the first cross-flow fan 310 is turned off and the temperature in the first section is high, the first cross-flow fan 310 is controlled to turn on, and the heat exchange efficiency of the first section of the indoor unit heat exchanger is adjusted to prevent the first section from The temperature is too high, affecting the normal operation of the ambient temperature detection device.

Specifically, when the temperature in the first section of the heat exchanger of the indoor unit is higher than 57°C, the ambient temperature detection device may have been affected. At this time, the control device 500 turns on the first cross-flow fan 310 and controls the first cross-flow fan 310 to continue to Low wind speed operation to improve the heat exchange efficiency of the first section, so that the temperature of the first section drops. When the temperature of the first section of the heat exchanger of the indoor unit is between 50° C. and 57° C., the control device 500 controls the first cross-flow fan 310 to start and stop intermittently to prevent the temperature of the first section of the heat exchanger from continuing to rise.

The control device 500 is also configured to: when controlling the intermittent start and stop of the first cross-flow fan 310, first turn on the first cross-flow fan 310, and control the first cross-flow fan 310 to continue to run at a preset speed for a preset time; then turn off the first cross-flow fan 310. The first cross-flow fan 310 stops running for a preset time; then, the above steps are repeated cyclically to realize the intermittent operation of the first cross-flow fan 310 . The above preset time can be set to 3 minutes. The aforementioned preset speed setting is 450rpm.

This embodiment also provides an air conditioner control method. Fig. 4 is a schematic diagram of an air conditioner control method according to an embodiment of the present invention. The control method generally includes:

In step S402, during the heating process of the air conditioner, the on-off status of the two cross-flow fans is obtained according to user instructions. The on/off state of the cross-flow fan affects the temperature of the indoor unit heat exchanger 300 . When a certain cross-flow fan is turned on, the heat exchange efficiency of the heat exchanger section corresponding to the cross-flow fan and the ambient air is high, and the temperature of the heat exchanger section is low when the air conditioner is heating. Conversely, when a certain cross-flow fan is turned off, the heat exchange efficiency between the heat exchanger section corresponding to the cross-flow fan and the ambient air is low, and the temperature of the heat exchanger section is relatively high when the air conditioner is heating.

Step S404, using the coil temperature detection device 410 to continuously detect the temperature of the first section of the heat exchanger of the indoor unit. Since the coil temperature detection device 410 is disposed in the first section, what the coil temperature detection device 410 detects is the temperature value of the first section of the indoor unit heat exchanger 300 .

In step S406, the operation modes of the two cross-flow fans are determined according to the on-off state of the cross-flow fans and the temperature of the first section of the heat exchanger of the indoor unit. According to the above description, due to the different opening and closing states of the two cross-flow fans, the heat exchange efficiency of the first section and the second section of the indoor unit heat exchanger 300 may be different. The air conditioning control method of this embodiment first determines whether there is a possibility of high temperature in the first section of the heat exchanger according to the on-off status of the two cross-flow fans, and then according to the first section of the heat exchanger of the indoor unit. The temperature in the first section determines the operation mode of the two cross-flow fans, so as to prevent the temperature in the first section from being too high and affecting the normal operation of the ambient temperature detection device 420 . The operation modes of the above-mentioned cross-flow fan may include: on, off, continuous low wind speed operation and intermittent start-stop operation and other modes.

Fig. 5 is a flowchart of an air conditioner control method according to an embodiment of the present invention. This method is applicable to an air conditioner with double cross-flow fans, and is used to prevent the temperature in the first section of the indoor unit of the air conditioner from being too high. The control method performs the following steps in sequence:

Step S502, during the heating process of the air conditioner, acquire the open and close states of the two cross-flow fans.

Step S504, using the coil temperature detection device 410 to continuously detect the temperature of the first section of the heat exchanger of the indoor unit.

Step S506 , judging whether the first cross-flow fan 310 is off and the second cross-flow fan 320 is on, that is, checking whether only the first cross-flow fan 310 is off. When only the first cross-flow fan 310 is turned off, the first section of the indoor unit heat exchanger 300 cannot dissipate heat through the cross-flow fan, so the heat exchange efficiency is low. In this case, the temperature in the first section of the indoor unit may be too high.

Step S508, if the judgment result of step S506 is yes, it is judged whether the temperature of the first section of the heat exchanger of the indoor unit is higher than or equal to a first preset temperature, which may be set to 57°C. According to the foregoing, when the first cross-flow fan 310 is turned off, the temperature in the first section of the indoor unit may be too high. Especially when the temperature in the first section of the heat exchanger of the indoor unit is higher than or equal to the first preset temperature, it means that the temperature in the first section of the indoor unit is very high, and high temperature will affect the normal operation of the ambient temperature detection device 420 .

Step S510, if the determination result of step S506 is negative, adjust the rotational speeds of the two cross-flow fans according to the user instruction. If the first cross-flow fan is on or the second cross-flow fan is off, the first section of the heat exchanger can dissipate heat normally, and the temperature in the first section will not be too high due to slow heat dissipation. Then the ambient temperature detection device 420 can work normally, and the two cross-flow fans can work normally according to the user's instruction.

Step S512, if the determination result of step S508 is yes, turn on the first cross-flow fan 310 and control the first cross-flow fan 310 to continue running at a preset speed. According to the foregoing, when the temperature in the first section of the heat exchanger of the indoor unit is higher than the first preset temperature, the internal temperature in the first section is relatively high due to poor heat dissipation. High temperature will affect the normal operation of the ambient temperature detection device 420 . At this time, the control device 500 turns on the first cross-flow fan 310, and controls the first cross-flow fan to continue to operate at a low wind speed, so as to improve the heat exchange efficiency of the first section of the heat exchanger and promote heat dissipation in the first section, so that the first section The temperature drops to prevent the temperature data detected by the ambient temperature detection device 420 from being inaccurate.

Step S514, if the judgment result of step S508 is no, continue to judge whether the temperature of the first section of the heat exchanger of the indoor unit is higher than the second preset temperature, that is, judge whether the temperature of the first section of the heat exchanger is at the first between a preset temperature and a second preset temperature. The aforementioned second preset temperature may be set to 50°C.

Step S516, if the determination result of step S514 is yes, control the first cross-flow fan 310 to run intermittently. The intermittent operation of the above-mentioned first cross-flow fan 310 refers to: opening the first cross-flow fan 310, and controlling the first cross-flow fan 310 to continue to run at a preset speed for a preset time; then closing the first cross-flow fan 310 to stop it from running Preset the time and repeat the above steps cyclically. When the temperature in the first section of the heat exchanger of the indoor unit is between the first preset temperature and the second preset temperature, the control device 500 controls the first cross-flow fan 310 to start and stop intermittently to improve the heat exchange efficiency of the first section , to prevent the temperature of the first interval from continuing to rise.

Step S518, if the determination result of step S514 is negative, keep the first cross-flow fan in the off state. If the temperature in the first section of the indoor unit heat exchanger is lower than or equal to the second preset temperature, then the temperature in the first section of the indoor unit is also relatively low. One-section heat dissipation.

In addition, the method of the present invention further includes: when the first cross-flow fan 310 continues to run at a preset speed and controls the first cross-flow fan 310 to run intermittently, if it is detected that the temperature of the first section of the heat exchanger of the indoor unit returns to If the temperature is lower than or equal to the second preset temperature, the first cross-flow fan 310 is turned off.

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. a kind of control method of air-conditioning, the indoor unit inside of the air-conditioning includes the firstth area laterally divided along the indoor unit Between and second interval, the first axial-flow fan and the second axial-flow fan be respectively arranged inside the first interval and second interval, Indoor set heat exchanger is extended laterally along the indoor unit, it is included positioned at the first section of the first interval and positioned at described Second section of second interval, the disk for detecting the first zone temperatures of indoor set heat exchanger is additionally provided with the first interval Pipe temperature-detecting device and the ambient temperature detection device for detecting indoor environment temperature, the control method include：

During air-conditioning heating, the open and-shut mode of two axial-flow fans is obtained；

The temperature of first section of indoor set heat exchanger is persistently detected using the coil temperature detection device；

According to the temperature of the first section of the open and-shut mode of the axial-flow fan and the indoor set heat exchanger determines two The operational mode of axial-flow fan.

2. control method according to claim 1, wherein according to the open and-shut mode of the axial-flow fan and the interior The temperature of the first section of machine heat exchanger determines that the step of operational mode of two axial-flow fans includes：

Judge whether first axial-flow fan is closed, and second axial-flow fan is in opening；

If so, judging whether the temperature of first section of indoor set heat exchanger is greater than or equal to the first preset temperature；

If so, open first axial-flow fan and control first axial-flow fan to continue to operate with preset rotation speed；

If it is not, judge whether the temperature of first section of indoor set heat exchanger is less than the first preset temperature and default higher than second Temperature；

If so, control the first axial-flow fan intermittent running；

If it is not, keep the closed mode of first axial-flow fan；And

If it is not, the rotating speed of two axial-flow fans is adjusted according to user instruction；Wherein

First preset temperature is more than second preset temperature.

3. control method according to claim 2, wherein the step of controlling the first axial-flow fan intermittent running includes：

First axial-flow fan is opened, and controls first axial-flow fan with preset rotation speed continuous service preset time；

Close first axial-flow fan and stop it preset time；

Circulating repetition above-mentioned steps, to realize the first axial-flow fan intermittent running.

4. control method according to claim 3, wherein further including：

Indoor environment temperature is persistently detected using the ambient temperature detection device；

Judge whether the indoor environment temperature is greater than or equal to the target temperature of user's setting；

If so, control compressor of air conditioner is shut down, pause heating.

5. control method according to claim 3, wherein first axial-flow fan continue with preset rotation speed operate with And further included after the step of controlling the first axial-flow fan intermittent running：

When the temperature for detecting first section of indoor set heat exchanger is less than or equal to second preset temperature, institute is closed State the first axial-flow fan.

6. a kind of air-conditioning, including：

Indoor unit, the indoor unit inside include the first interval and second interval laterally divided along the indoor unit, the room Interior machine includes：

First axial-flow fan, is arranged inside the first interval；

Second axial-flow fan, is arranged inside the second interval；

Indoor set heat exchanger, is arranged inside the indoor unit, and extending laterally along the indoor unit, it is included positioned at described First section of first interval and the second section positioned at the second interval；

Coil temperature detection device, is arranged inside the first interval, for detecting first section of indoor set heat exchanger Temperature；

Ambient temperature detection device, is arranged inside the first interval, for detecting indoor environment temperature；

Compressor, is configured to compression refrigerant heating；

State acquisition device, is configured to obtain the open and-shut mode of two axial-flow fans；

Control device, is electrically connected with the coil temperature detection device and the state acquisition device, is configured to pass through according to The temperature of the first section of the open and-shut mode of flow fan and the indoor set heat exchanger determines the operation of two axial-flow fans Pattern.

7. air-conditioning according to claim 6, wherein the control device is configured to：

First axial-flow fan is closed, second axial-flow fan is in opening, and the indoor unit In the case that the temperature of the first section of heat exchanger is greater than or equal to the first preset temperature, opens first axial-flow fan and control First axial-flow fan continues to operate with preset rotation speed；

First axial-flow fan is closed, second axial-flow fan is in opening, and the indoor unit The temperature of the first section of heat exchanger less than the first preset temperature and higher than in the case of the second preset temperature, pass through by control described first Flow fan intermittent running；First axial-flow fan is closed, second axial-flow fan is in opening, and In the case that the temperature of first section of indoor set heat exchanger is less than or equal to second preset temperature, described first is kept The closed mode of axial-flow fan；And

In the case where first axial-flow fan is in opening or second axial-flow fan is closed, according to User instruction adjusts the rotating speed of two axial-flow fans.

8. air-conditioning according to claim 7, wherein the control device is configured to：

First axial-flow fan is opened, and controls first axial-flow fan with preset rotation speed continuous service preset time；Close Close first axial-flow fan and stop it preset time；Circulating repetition above-mentioned steps, to realize the first through-flow wind Fan intermittent running.

9. air-conditioning according to claim 8, wherein the control device is configured to：

In the case where the indoor environment temperature is greater than or equal to the target temperature of user's setting, control compressor of air conditioner stops Machine, pause heating.

10. air-conditioning according to claim 8, wherein the control device is configured to：

When the temperature for detecting first section of indoor set heat exchanger is less than or equal to second preset temperature, institute is closed State the first axial-flow fan.