Air conditioner and control method thereof

Abstract

The invention provides an air conditioner and a control method thereof.The air conditioner comprises a panel body and a shielding assembly, an air inlet is formed in the top of the panel body, a guide rail extending along the back side of the panel body and the top of the panel body is arranged on the inner wall of one side of the panel body, and the guide rail is located between the air inlet and an evaporator; the shielding assembly comprises a driving part and a shielding part, the driving part is fixedly arranged on the inner wall of the panel body and connected with the shielding part, the shielding part is slidably connected with the guide rail, and one end of the shielding part extends in the length direction of the panel body; when the anti-condensation function is started, the driving piece drives the shielding piece to slide to the position below the air inlet so as to shield part of the air inlet. The shielding assembly is arranged between the air inlet and the evaporator and can slide along the guide rail, and when the anti-condensation function is started, the shielding piece slides to the position below the air inlet to shield part of the air inlet, so that the air inlet amount is reduced, and the maximum temperature difference of the air outlet side of the evaporator is reduced; therefore, the risk of condensation at the air outlet of the air conditioner is reduced, and the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air conditioner and a control method thereof. Background Art

[0002] With global warming and the improvement of the quality of life, air conditioners have become one of the daily household appliances, and the functions of air conditioners have gradually increased, including cooling, heating, dehumidification, etc. In the cooling process of the air conditioner, the hot air will blow out low-temperature cold air after heat exchange with the evaporator with a lower temperature. If the refrigerant is not evenly distributed between different flow paths of the evaporator, the outlet air temperature will be different after heat exchange with different flow paths. When the air with a high temperature after heat exchange with the evaporator meets the air with a low temperature after heat exchange, secondary moisture analysis is likely to occur in the air duct, thereby generating condensation water and blowing it into the room from the air outlet, seriously affecting the user experience. Summary of the invention

[0003] The embodiments of the present invention provide an air conditioner and a control method thereof, so as to reduce the risk of condensation caused by the intersection of cold and hot air at the air outlet of the air conditioner and improve the user experience.

[0004] The present invention provides an air conditioner, comprising:

[0005] A panel body, with an air inlet on the top, and an inner wall on one side of the panel body is provided with a guide rail extending along the back side of the panel body and the top of the panel body, wherein the guide rail is located between the air inlet and the evaporator;

[0006] A shielding assembly, comprising a driving member and a shielding member, wherein the driving member is fixedly mounted on the inner wall of the panel body and connected to the shielding member, the shielding member is slidably connected to the guide rail and one end of the shielding member is extended along the length direction of the panel body;

[0007] When the anti-condensation function is activated, the driving member drives the shielding member to slide below the air inlet to shield part of the air inlet.

[0008] In the air conditioner provided by the present invention, the shielding member includes a sliding portion and a shielding portion, the sliding portion is extended along the length direction of the guide rail, the sliding portion is connected to the driving member, and the shielding portion is fixedly connected to the sliding portion and extends along the length direction of the panel body.

[0009] In the air conditioner provided by the present invention, the sliding part is a rack structure, the driving member includes a motor and a gear, the motor is fixedly connected to the side wall of the panel body, and the gear connects the motor and the sliding part.

[0010] In the air conditioner provided by the present invention, limiting parts are provided on both sides of the guide rail, and the limiting parts extend upward from the edge of the guide rail for a distance and then extend toward the middle of the guide rail, and the limiting parts are engaged with the sliding part.

[0011] In the air conditioner provided by the present invention, a avoidance portion is provided on one side of the guide rail close to the middle of the panel body, and the avoidance portion extends from the top of the guide rail on the back side of the panel body to below the air inlet, and the avoidance portion is used to avoid the shielding portion.

[0012] In the air conditioner provided by the present invention, the shielding member is made of elastic material.

[0013] In the air conditioner provided by the present invention, the air conditioner further comprises a plurality of temperature and humidity sensors, and the plurality of temperature and humidity sensors are arranged at intervals on the air outlet side of the evaporator along the width direction of the evaporator.

[0014] The present invention further provides a control method for an air conditioner, which is applied to any of the air conditioners described above, and comprises:

[0015] Obtain the maximum temperature and minimum temperature at the air outlet side of the evaporator and the relative humidity corresponding to the maximum temperature;

[0016] Calculating a dew point temperature corresponding to the maximum temperature according to the maximum temperature and the relative humidity, and determining whether the dew point temperature is higher than the minimum temperature;

[0017] If the dew point temperature is higher than the minimum temperature, the anti-condensation function is turned on.

[0018] The step of calculating the dew point temperature corresponding to the maximum temperature according to the maximum temperature and the relative humidity, and judging whether the dew point temperature is higher than the minimum temperature, comprises:

[0019] Obtain the minimum relative humidity corresponding to the minimum temperature at the dew point temperature;

[0020] Determining the minimum relative humidity and the relative humidity;

[0021] If the minimum relative humidity is lower than the relative humidity, and the relative humidity is lower than 1, the anti-condensation function is turned on.

[0022] After the step of calculating the dew point temperature corresponding to the maximum temperature according to the maximum temperature and the relative humidity, and judging whether the dew point temperature is higher than the minimum temperature, the present invention further includes:

[0023] If the dew point temperature is lower than the minimum temperature, determining whether the shielding element is in the initial position;

[0024] If the shielding member is not in the initial position, the shielding member is controlled to slide to the initial position.

[0025] The present application provides the shielding assembly between the air inlet and the evaporator so that the shielding assembly can slide along the guide rail of the panel body. When the anti-condensation function is turned on, the shielding assembly is slid below the air inlet to partially shield the air inlet, thereby reducing the air intake of the air inlet, lowering the maximum temperature on the air outlet side of the evaporator, and reducing the temperature difference between the maximum temperature and the minimum temperature on the air outlet side of the evaporator, avoiding condensation in the air duct, thereby reducing the risk of condensation occurring when cold and hot air meet at the air outlet of the air conditioner, and improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0027] Figure 1a-1d is a cross-sectional view of the air conditioner at various angles in an embodiment of the present invention;

[0028] Figure 2 for Figure 1b The enlarged view of point A in the middle;

[0029] Figure 3 for Figure 1d The enlarged view of point B in the middle;

[0030] Figure 4 is a top view of an air conditioner in an embodiment of the present invention;

[0031] Figure 5 A structural diagram of a shielding member in an embodiment of the present invention;

[0032] Figure 6 for Figure 5 Enlarged view of point C in the middle;

[0033] Figure 7 is a flow chart of a method for controlling an air conditioner in an embodiment of the present invention;

[0034] Figure 8 is a sub-flow chart of a method for controlling an air conditioner in an embodiment of the present invention;

[0035] Fig. 9 is a sub-flow chart of a method for controlling an air conditioner in an embodiment of the present invention;

[0036] Fig.10A schematic diagram of a step flow of a method for controlling an air conditioner according to an embodiment of the present invention;

[0037] The reference numerals in the figures are:

[0038] 10. panel body; 11. air inlet; 12. guide rail; 121. limit portion; 122. avoidance portion; 20. evaporator; 30. shielding assembly; 31. driving member; 32. shielding member; 321. sliding portion; 322. shielding portion. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Now, in conjunction with the accompanying drawings, a preferred embodiment of the present invention is described in detail.

[0040] Reference Figures 1a to 6 As shown, it shows an embodiment of the air conditioner of the present invention. The air conditioner includes a panel body 10 and a shielding assembly 30, wherein an air inlet 11 is provided on the top of the panel body 10, and a guide rail 12 extending along the back side of the panel body 10 and the top of the panel body 10 is provided on the inner wall of one side of the panel body 10, wherein the guide rail 12 is located between the air inlet 11 and the evaporator 20; the shielding assembly 30 includes a driving member 31 and a shielding member 32, wherein the driving member 31 is fixedly arranged on the inner wall of the panel body 10 and connected to the shielding member 32, wherein the shielding member 32 is slidably connected to the guide rail 12 and one end of the shielding member 32 is extended along the length direction of the panel body 10; when the anti-condensation function is activated, the driving member 31 drives the shielding member 32 to slide below the air inlet 11 to shield part of the air inlet 11.

[0041] Specifically, the air conditioner includes a panel body 10, an evaporator 20, and fan blades. The panel body 10 encloses an installation space for installing other structural parts. The evaporator 20 is used to exchange heat with air and can generate cold air or hot air so that the air conditioner can achieve cooling or heating functions. The fan blades rotate to generate negative pressure to make the air flow in a specified direction; the evaporator 20 and the fan blades are both fixed in the panel body 10, and the evaporator 20 is located between the air inlet 11 and the air outlet of the panel body 10, and the fan blades are located below the evaporator 20. Therefore, when the fan blades are started, air enters the panel body 10 from the air inlet 11, passes through the evaporator 20, is cooled or heated by the evaporator 20, and then flows to the air outlet, wherein the side of the evaporator 20 facing the air outlet is the air outlet side of the evaporator 20.

[0042] A guide rail 12 is provided on the inner wall of one side of the panel body 10, and the guide rail 12 is extended along the back side of the panel body 10 and the top of the panel body 10. In the present embodiment, the guide rail 12 extends from the bottom end of the back side of the panel body 10 along the circumference of the panel body 10 toward the top of the panel body 10 to the top of the front side of the panel body 10, and the guide rail 12 is located above the evaporator 20; an air inlet 11 is also provided on the top of the panel body 10, and the air inlet 11 is used to connect the outside of the panel body 10 and the evaporator 20, and the air inlet 11 is located above the guide rail 12, that is, the guide rail 12 is located between the air inlet 11 and the evaporator 20.

[0043] The air conditioner also includes a shielding component 30, which is used to shield part of the air inlet 11. The shielding component 30 includes a driving member 31 and a shielding member 32. The driving member 31 is used to drive the shielding member 32 to slide, and the shielding member 32 is used to shield the air inlet 11; the driving member 31 is fixed to the inner wall of the panel body 10, and the driving member 31 is connected to the shielding member 32, the shielding member 32 is slidably connected to the guide rail 12, and one end of the shielding member 32 is extended along the length direction of the panel body 10 to adapt to the length of the air inlet 11; therefore, the shielding member 32 is located between the air inlet 11 and the evaporator 20, and the shielding member 32 can shield or open the air inlet 11, so that the size of the air inlet 11 can be adjusted to adjust the air intake of the air inlet 11, thereby adjusting the temperature difference of the evaporator 20 and reducing the risk of condensation.

[0044] When it is detected that there is a risk of condensation on the air outlet side of the evaporator 20, the anti-condensation function is turned on, and the driving member 31 is controlled to drive the shielding member 32 to slide along the guide rail 12 toward the position of the air inlet 11 until the shielding member 32 blocks a portion of the air inlet 11, and the sliding of the shielding member 32 is stopped.

[0045] More specifically, refer to Figure 4 As shown, the air conditioner is provided with two groups of the shielding components 30 and the two guide rails 12, and the two groups of the shielding components 30 and the two guide rails 12 are symmetrically arranged along the middle plane of the length direction of the evaporator 20, so as to improve the stability of the operation of the shielding components 30 and improve the structural stability of the air conditioner.

[0046] The present application provides the shielding assembly 30 between the air inlet 11 and the evaporator 20 so that the shielding assembly 30 can slide along the guide rail 12 of the panel body 10. When the anti-condensation function is turned on, the shielding member 32 is slid below the air inlet 11 to partially block the air inlet 11, thereby reducing the air intake of the air inlet 11, so that the maximum temperature on the air outlet side of the evaporator 20 is reduced, so as to reduce the temperature difference between the maximum temperature and the minimum temperature on the air outlet side of the evaporator 20, avoid condensation in the air duct, thereby reducing the risk of condensation occurring when cold and hot air meet at the air outlet of the air conditioner, and improving user experience.

[0047] In one embodiment, referring to Figures 1a to 6 As shown, the shielding member 32 includes a sliding portion 321 and a shielding portion 322, the sliding portion 321 is extended along the length direction of the guide rail 12, the sliding portion 321 is connected to the driving member 31, and the shielding portion 322 is fixedly connected to the sliding portion 321 and extends along the length direction of the panel body 10. Specifically, the shielding member 32 is slidably connected to the guide rail 12, and the shielding member 32 is used to shield part of the air inlet 11; the shielding member 32 includes a sliding portion 321 for sliding and a shielding portion 322 for shielding the air inlet 11, the sliding portion 321 is slidably connected to the guide rail 12, the sliding portion 321 is extended along the length direction of the guide rail 12, and the length of the sliding portion 321 is less than the length of the guide rail 12, so that the sliding portion 321 can reciprocate along the guide rail 12. One side of the sliding part 321 is connected to the driving member 31, so that the driving member 31 can drive the sliding part 321 to reciprocate along the guide rail 12; one side of the shielding part 322 is fixedly connected to the sliding part 321, and the other side of the shielding part 322 is extended toward the other side of the panel body 10 along the length direction of the panel body 10, and the shielding part 322 has a certain width, so that when the shielding part 322 slides to the bottom of the air inlet 11 with the sliding part 321, the shielding part 322 can block part of the air inlet 11, thereby reducing the air intake of the air inlet 11, so as to reduce the maximum temperature of the air outlet side of the evaporator 20, thereby reducing the maximum temperature difference of the air outlet side of the evaporator 20, and preventing condensation when cold and hot air meet. The shielding part 32 has a simple structure and high structural stability.

[0048] More specifically, the sliding portion 321 and the shielding portion 322 are an integrated structure, thereby improving the structural stability of the shielding member 32, preventing the shielding portion 322 from falling off the sliding portion 321, and simplifying production. At the same time, the shielding portion 322 can be in various shapes, such as an arc plate, a fan-shaped plate, etc., which are not limited here.

[0049] In a specific embodiment, refer to Figure 2 and Figure 6 As shown, the sliding part 321 is a rack structure, the driving member 31 includes a motor and a gear, the motor is fixedly connected to the side wall of the panel body 10, and the gear connects the motor and the sliding part 321. Specifically, the driving member 31 is used to drive the sliding part 321 to reciprocate along the length direction of the guide rail 12, the driving member 31 includes a motor and a gear, the motor is fixed on the inner wall of the panel body 10, and the motor is connected to the gear, and the motor can drive the gear to rotate when it is started; the sliding part 321 is set as a rack structure, the gear is connected to the sliding part 321, when the motor is turned on, the motor drives the gear to rotate, and the gear drives the sliding part 321 to slide, so as to realize the function of driving the shielding member 32. In this embodiment, the shielding member 32 is slid by a gear rack transmission method. This transmission method is simple, has a low production cost, and is easy to install. The rotation direction of the gear can be changed by controlling the current direction of the motor so that the shielding member 32 can reciprocate along the guide rail 12. The adjustment method is simple.

[0050] In one embodiment, referring to Figure 3 As shown, the guide rail 12 is provided with a limit portion 121 on both sides. The limit portion 121 extends upward from the edge of the guide rail 12 for a distance and then extends toward the middle of the guide rail 12. The limit portion 121 is engaged with the sliding portion 321. Specifically, the sliding portion 321 slides on the guide rail 12. To ensure that the sliding portion 321 does not separate from the guide rail 12, a limit portion 121 is further provided on both sides of the guide rail 12. The two limit portions 121 are arranged facing each other, and the limit portion 121 extends vertically upward from the edge of the guide rail 12 for a distance and then extends horizontally toward the middle of the guide rail 12, so that a limit space is formed between the limit portion 121 and the bottom surface of the guide rail 12. When the sliding portion 321 is assembled to the guide rail 12, Both ends of the sliding part 321 are located in the limiting space, and the left and right sides and the upper side of both ends of the sliding part 321 are limited by the limiting parts 121 on both sides, that is, the limiting parts 121 clamp the sliding part 321 in the guide rail 12, thereby limiting the left and right sides and the upper side of the sliding part 321, fixing the sliding part 321 on the guide rail 12, preventing the sliding part 321 from detaching from the guide rail 12, and improving the stability and smoothness of the sliding part 321 sliding along the guide rail 12.

[0051] More specifically, refer to Figure 6As shown, both sides of the top of the sliding part 321 are smooth planar structures, the middle part of the top of the sliding part 321 is a rack structure, and the middle part of the sliding part 321 protrudes from both sides of the sliding part 321; the limiting parts 121 on both sides of the guide rail 12 are arranged at intervals, and when the sliding part 321 is assembled to the guide rail 12, the two sides of the sliding part 321 that are planar structures are clamped with the limiting parts 121 on both sides of the guide rail 12, and the middle part of the sliding part 321 that is a rack structure protrudes from the limiting parts 121 to be connected with the gear transmission, thereby improving the stability of the fixing of the sliding part 321 and the guide rail 12, and ensuring the transmission of the sliding part 321 and the gear.

[0052] In one embodiment, referring to Figure 2 As shown, a side of the guide rail 12 close to the middle of the panel body 10 is provided with a avoidance portion 122 , and the avoidance portion 122 extends from the top of the guide rail 12 on the back side of the panel body 10 to below the air inlet 11 , and the avoidance portion 122 is used to avoid the shielding portion 322 . Specifically, the limiting parts 121 are provided on both sides of the guide rail 12, and the shielding part 322 is extended from one end fixedly connected to the sliding part 321 toward the middle of the panel body 10, so the shielding part 322 will pass through the limiting part 121. In order to ensure the normal movement of the shielding part 322, the avoidance part 122 is provided on the side of the guide rail 12 close to the middle of the panel body 10, and the avoidance part 122 extends from the top of the guide rail 12 on the back side of the panel body 10 to the side of the guide rail 12 below the air inlet 11, that is, the avoidance part 122 is located on the side of the guide rail 12 close to the air inlet 11 to the lower side of the air inlet 11, so that the shielding part 322 can be moved from the side of the guide rail 12 close to the air inlet 11 to the lower side of the air inlet 11, so that the shielding part 322 can be moved from the side of the guide rail 12 close to the air inlet 11 to the lower side of the air inlet 11. The part 322 can slide along the guide rail 12 within the range of the avoidance part 122, and the avoidance part 122 is located at one end on the back side of the panel body 10 and is connected to the limiting part 121, and the limiting part 121 protrudes outward from the avoidance part 122, so that both sides of the sliding part 321 below the avoidance part 122 can be limited by the limiting parts 121 on both sides, thereby improving the sliding stability of the sliding part 321 and the stability of the blocking member 32 being fixed to the guide rail 12; when the blocking part 322 slides to abut against the limiting part 121, the blocking part 322 is in the initial position at this time, and the blocking part 322 does not block the air inlet 11, and the motor is turned off to stop the sliding of the sliding part 321.

[0053] In this embodiment, the avoidance portion 122 is provided at the top of one side of the guide rail 12 close to the middle of the panel body 10 to avoid the shielding portion 322. While ensuring the normal movement of the shielding portion 322, it also ensures that the sliding portion 321 is limited by the limiting portion 121 as much as possible, so as to improve the sliding stability of the sliding portion 321 and the stability of the fixing of the shielding member 32 to the guide rail 12.

[0054] In one embodiment, the shielding member 32 is made of an elastic material. Specifically, since the guide rail 12 extends from the bottom end of the back side of the panel body 10 along the circumference of the panel body 10 toward the top of the panel body 10 to the top of the front side of the panel body 10, the guide rail 12 has a certain curvature. When the shielding member 32 slides along the guide rail 12, the shielding member 32 will be affected by the curvature of the guide rail 12 during the movement and will be elastically deformed. The shielding member 32 is made of an elastic material, such as nylon, so that the shielding member 32 can be controlled to slide on the guide rail 12 more stably.

[0055] In a specific embodiment, the air conditioner further includes a plurality of temperature and humidity sensors (not shown in the figure), which are arranged at intervals on the air outlet side of the evaporator 20 along the width direction of the evaporator 20. Specifically, the temperature and humidity sensor is used to detect the temperature and humidity of the evaporator 20. A plurality of the temperature and humidity sensors are arranged on the evaporator 20, and the plurality of temperature and humidity sensors are arranged uniformly and at intervals on the air outlet side of the evaporator 20 along the width direction of the evaporator 20. The air outlet side of the evaporator 20 refers to the side of the evaporator 20 away from the air inlet 11, and the air outlet side is used to guide the air after heat exchange to the air outlet. Therefore, the temperature and humidity sensor can monitor the temperature and humidity of the air after heat exchange in real time. The highest temperature and the lowest temperature can be obtained at each position of the evaporator 20 through the positions of the plurality of temperature and humidity sensors, so as to further determine whether condensation will occur in the air after heat exchange, and then determine whether to perform the anti-condensation function to reduce the risk of condensation in the air conditioner. In this embodiment, the plurality of temperature and humidity sensors are used to monitor the outlet air temperature of different flow paths of the evaporator 20 in real time after heat exchange, thereby improving the monitoring accuracy and thus improving the anti-condensation effect.

[0056] More specifically, in this embodiment, six temperature and humidity sensors are provided on the air outlet side of the evaporator 20, and the six temperature and humidity sensors are arranged at intervals along the width direction of the evaporator 20 on the air outlet side of the evaporator 20. The number of the temperature and humidity sensors can be set according to actual needs, and can be more than six or less than six, or six, which is not limited here.

[0057] Exemplarily, when the air conditioner is operating in a cooling state, it is determined whether to turn on the anti-condensation function based on the temperature data and humidity data obtained by the temperature and humidity sensor. If it is necessary to control the air conditioner to turn on the anti-condensation function, the motor is started and the gear is rotated to drive the sliding part 321 and the shielding part 322 to slide along the guide rail 12 toward the air inlet 11 until the shielding part 322 blocks part of the air inlet 11. Since the air intake of the air inlet 11 is reduced, the outlet air temperature on the outlet side of the evaporator 20 in the vertical direction corresponding to the air inlet 11 will be reduced. Therefore, when the shielding part 322 slides to the position of the air inlet 11 in the vertical direction corresponding to the highest temperature of the evaporator 20 for shielding, the highest temperature on the outlet side of the evaporator 20 is reduced. The air intake of the air inlet 11 in the vertical direction is reduced, so that the highest temperature is reduced, and the maximum temperature difference of the air on the outlet side of the evaporator 20 is reduced, thereby avoiding condensation at the air outlet.

[0058] The embodiment of the present invention also provides a method for controlling an air conditioner. Fig.10 is a schematic flow chart of the steps of the air conditioner control method, Figure 7 is a flow chart of the control method of the air conditioner, wherein the steps of the control method of the air conditioner include S110-S130:

[0059] S110, obtaining the maximum temperature and the minimum temperature at the air outlet side of the evaporator 20 and the relative humidity corresponding to the maximum temperature;

[0060] Specifically, the air outlet side of the evaporator 20 refers to the side of the evaporator 20 away from the air inlet 11, and the air outlet side is used to guide the air after heat exchange to the air outlet; if the refrigerant is unevenly distributed between different flow paths of the evaporator 20, the outlet air temperature after heat exchange in different flow paths will be different; a plurality of temperature and humidity sensors are arranged at intervals on the air outlet side of the evaporator 20, and the temperature and humidity sensors can detect the temperature and humidity at each position of the air outlet side of the evaporator 20, and the temperature and humidity sensors feed back the outlet air temperature and outlet air humidity corresponding to the detected different flow paths to the controller of the air conditioner, and the controller obtains each outlet air temperature (including T1, T2, T3, T4, T5, T6, ...) and outlet air humidity on the air outlet side of the evaporator 20, and calculates the maximum temperature Tmax and the minimum temperature Tmin on the air outlet side of the evaporator 20 and the relative humidity R1 corresponding to the maximum temperature, wherein Tmax and Tmin are included in T1, T2, T3, T4, T5, T6, ...

[0061] S120, calculating the dew point temperature corresponding to the maximum temperature according to the maximum temperature and the relative humidity, and determining whether the dew point temperature is higher than the minimum temperature;

[0062] Specifically, the dew point temperature refers to the temperature at which the air is cooled to a saturated state of water vapor under a certain air pressure. When the current temperature is lower than the dew point temperature, the air is likely to condense into water droplets, i.e., condensation is likely to occur. The dew point temperature is related to temperature and humidity. The controller calculates the dew point temperature corresponding to the maximum temperature based on the maximum temperature and the relative humidity corresponding to the maximum temperature, and determines the magnitude of the dew point temperature and the minimum temperature, i.e., uses the dew point temperature as the critical value for condensation to easily occur on the air outlet side, and compares the minimum temperature with the dew point temperature, so as to determine whether condensation is likely to occur on the air outlet side of the evaporator 20 at the minimum temperature, thereby determining whether the air conditioner performs the anti-condensation function. If the dew point temperature is higher than the minimum temperature, it indicates that there is a risk of condensation at this time. If the dew point temperature is lower than the minimum temperature, it indicates that there is no risk of condensation.

[0063] In this embodiment, the dew point temperature and the minimum temperature are compared to determine whether condensation will occur, thereby improving the accuracy of the determination and achieving precise control of anti-condensation.

[0064] S130, if the dew point temperature is higher than the minimum temperature, turning on the anti-condensation function;

[0065] Specifically, when it is detected that the dew point temperature is higher than the minimum temperature, indicating that there is a risk of condensation, the air conditioner is controlled to turn on the anti-condensation function.

[0066] Exemplarily, in this embodiment, after the air conditioner runs in the cooling state for the first preset time t1 (such as 3 minutes), it is determined whether to turn on the anti-condensation function based on the outlet air temperature data and the outlet air humidity data obtained by the temperature and humidity sensor, that is, the maximum temperature and the minimum temperature on the outlet air side of the evaporator 20 and the humidity corresponding to the maximum temperature are obtained by the temperature and humidity sensor, and the controller calculates the dew point temperature corresponding to the maximum temperature based on the maximum temperature and the humidity corresponding to the maximum temperature, and compares the minimum temperature and the dew point temperature. When the minimum temperature is less than the dew point temperature, it indicates that the air conditioner is at risk of condensation, and the air conditioner is controlled to turn on the anti-condensation function; thereby starting the motor and rotating the gear To drive the sliding portion 321 and the shielding portion 322 to slide along the guide rail 12 toward the air inlet 11 until the shielding portion 322 blocks a portion of the air inlet 11. Since the air intake of the air inlet 11 is reduced, the air outlet temperature of the air outlet side of the evaporator 20 in the vertical direction corresponding to the air inlet 11 will be reduced. Therefore, when the shielding portion 322 slides to the position of the air inlet 11 in the vertical direction corresponding to the highest temperature of the evaporator 20 for shielding, the highest temperature on the air outlet side of the evaporator 20 is reduced in the vertical direction. The air intake of the air inlet 11 reduces the highest temperature, reduces the maximum temperature, and reduces the maximum temperature difference of the air on the air outlet side of the evaporator 20, thereby avoiding condensation at the air outlet.

[0067] The present application determines whether condensation occurs based on the dew point temperature corresponding to the maximum temperature and the minimum temperature, and then accurately controls whether to turn on the anti-condensation function, accurately preventing condensation from occurring when air with uneven outlet temperatures meets, thereby improving the anti-condensation control of the air conditioner and reducing the risk of condensation. At the same time, by controlling the size of the air inlet 11 blocked by the shielding portion 322 to adjust the size of the air intake of the air inlet 11, the problem of uneven outlet temperature of the evaporator 20 is adjusted to reduce the risk of condensation occurring when cold and hot air meet at the air outlet of the air conditioner, thereby improving user experience.

[0068] In one embodiment, if Figure 8 As shown, step S120 also includes S121-S123.

[0069] S121, obtaining the minimum relative humidity corresponding to the minimum temperature at the dew point temperature;

[0070] S122, determining the minimum relative humidity and the relative humidity;

[0071] S123: If the minimum relative humidity is lower than the relative humidity, and the relative humidity is lower than 1, the anti-condensation function is turned on.

[0072] Specifically, the corresponding relative humidity R1 can be obtained according to the dew point temperature corresponding to the highest temperature, and the relative humidity is the outlet humidity data detected by the temperature and humidity sensor at the highest temperature, which is a known quantity; the minimum relative humidity R2 required by the minimum temperature at the dew point temperature can be obtained by querying the humid air enthalpy-humidity diagram software in dot matrix format; and by judging the size of the minimum relative humidity and the relative humidity, it is judged whether condensation will occur; if the minimum relative humidity is less than or equal to the relative humidity, and the relative humidity is less than 1 (that is, 1>R1≥R2), it indicates that the dew point temperature of the wet air in the flow field where the highest outlet temperature Tmax is located is higher than the lowest outlet temperature Tmin on the outlet side, that is, there is a risk of condensation at the current outlet, then the anti-condensation function is controlled to be turned on to accurately prevent the condensation phenomenon when air with uneven outlet temperatures meets, thereby improving the anti-condensation control of the air conditioner and reducing the risk of condensation.

[0073] If the relative humidity does not satisfy 1>R1≥R2, it means that there is no risk of condensation at the air outlet and no anti-condensation measures are required.

[0074] In one embodiment, if Fig. 9 As shown, after step S120, steps S140-S150 are also included.

[0075] S140, if the dew point temperature is lower than the minimum temperature, determining whether the shielding member 32 is in the initial position;

[0076] S150: If the shielding member 32 is not in the initial position, control the shielding member 32 to slide to the initial position.

[0077] Specifically, the shielding member 32 is used to shield the air inlet 11 to control the air intake of the air inlet 11 and thereby adjust the temperature difference on the air outlet side of the evaporator 20, ultimately reducing the risk of condensation at the air outlet; the initial position is a preset designated position, and the initial position is located on the back side of the panel body 10. When the shielding member 32 is located at the initial position, the shielding member 32 will not block the air inlet 11, that is, at this time the entire air inlet 11 can take in air.

[0078] When the dew point temperature is lower than the minimum temperature, it indicates that the risk of condensation is eliminated or condensation will not occur. At this time, the air inlet 11 does not need to be blocked, so it is necessary to further determine the position of the shielding member 32, that is, to determine whether the shielding member 32 is located in the initial position. If the shielding member 32 is not in the initial position, in order not to affect the normal air intake of the indoor unit, the gear is reversed by controlling the motor, and the gear drives the shielding member 32 to slide in the opposite direction along the guide rail 12 to return to the initial position, so that the air conditioner can operate normally.

[0079] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. An air conditioner, characterized in that: include: A panel body, with an air inlet on the top, and an inner wall on one side of the panel body is provided with a guide rail extending along the back side of the panel body and the top of the panel body, wherein the guide rail is located between the air inlet and the evaporator; A shielding assembly, comprising a driving member and a shielding member, wherein the driving member is fixedly mounted on the inner wall of the panel body and connected to the shielding member, the shielding member is slidably connected to the guide rail and one end of the shielding member is extended along the length direction of the panel body; When the anti-condensation function is activated, the driving member drives the shielding member to slide below the air inlet to shield part of the air inlet.

2. The air conditioner according to claim 1, characterized in that: The shielding member includes a sliding portion and a shielding portion, the sliding portion is extended along the length direction of the guide rail, the sliding portion is connected to the driving member, and the shielding portion is fixedly connected to the sliding portion and extended along the length direction of the panel body.

3. The air conditioner according to claim 2, characterized in that: The sliding part is a rack structure, and the driving member includes a motor and a gear. The motor is fixedly connected to the side wall of the panel body, and the gear connects the motor and the sliding part.

4. The air conditioner according to claim 2, characterized in that: Limiting parts are arranged on both sides of the guide rail. The limiting parts extend upwards from the edge of the guide rail for a distance and then extend toward the middle of the guide rail. The limiting parts are engaged with the sliding part.

5. The air conditioner according to claim 4, characterized in that: A evacuation portion is provided on one side of the guide rail close to the middle of the panel body, and the evacuation portion extends from the top of the guide rail located on the back side of the panel body to below the air inlet, and the evacuation portion is used to evade the shielding portion.

6. The air conditioner according to claim 1, characterized in that: The shielding member is made of elastic material.

7. The air conditioner according to any one of claims 1 to 6, characterized in that: The air conditioner further includes a plurality of temperature and humidity sensors, which are arranged at intervals on the air outlet side of the evaporator along the width direction of the evaporator.

8. A method for controlling an air conditioner, characterized in that: Applied to the air conditioner according to any one of claims 1 to 7, the method comprises: Obtain the maximum temperature and minimum temperature at the air outlet side of the evaporator and the relative humidity corresponding to the maximum temperature; Calculating a dew point temperature corresponding to the maximum temperature according to the maximum temperature and the relative humidity, and determining whether the dew point temperature is higher than the minimum temperature; If the dew point temperature is higher than the minimum temperature, the anti-condensation function is turned on.

9. The method according to claim 8, characterized in that The step of calculating the dew point temperature corresponding to the maximum temperature according to the maximum temperature and the relative humidity, and judging whether the dew point temperature is higher than the minimum temperature comprises: Obtain the minimum relative humidity corresponding to the minimum temperature at the dew point temperature; Determining the minimum relative humidity and the relative humidity; If the minimum relative humidity is lower than the relative humidity, and the relative humidity is lower than 1, the anti-condensation function is turned on.

10. The method according to claim 8, characterized in that After the step of calculating the dew point temperature corresponding to the maximum temperature according to the maximum temperature and the relative humidity, and judging whether the dew point temperature is higher than the minimum temperature, the method further includes: If the dew point temperature is lower than the minimum temperature, determining whether the shielding element is in the initial position; If the shielding member is not in the initial position, the shielding member is controlled to slide to the initial position.

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