CN107166523A - Wall-hanging air conditioner indoor unit - Google Patents

Abstract

The invention provides a kind of wall-hanging air conditioner indoor unit, it includes：Case, its top is formed with air inlet；Drive mechanism, is arranged on case；Purification assembly, it is connected to drive mechanism, and be configured to drive the position on the top of air inlet spaced a predetermined distance to lift between the position of covering air inlet by drive mechanism, and purification assembly is when dropping to the position of covering air inlet, completely obscured air inlet, is purified with the air-flow to the machine of getting in.The lifting of the Function Extension of indoor apparatus of air conditioner and the air quality of indoor apparatus of air conditioner working environment is realized using this programme.

Description

Wall-mounted air conditioner indoor unit

technical field

The invention relates to the technical field of home appliances, in particular to a wall-mounted air conditioner indoor unit.

Background technique

An air conditioner (air conditioner, air conditioner for short) is an electrical appliance used to directly provide treated air to a closed space or area. In the prior art, an air conditioner is generally used to adjust the temperature of a working environment. As people's requirements for environmental comfort are getting higher and higher, the functions of air conditioners are also becoming more and more abundant.

Due to people's higher and higher requirements for air cleanliness, there are currently some solutions for installing purification devices in air conditioners to purify part of the air entering the air conditioner. However, these air conditioners with purification functions have the following problems : because only part of the air can be purified, the purification effect is relatively poor; in addition, because the purification device works for a long time, even if the air is very clean, it still keeps working, so that the service life of the purification device is reduced, and it is easy to cause secondary pollution. secondary pollution.

Contents of the invention

In view of the above problems, an object of the present invention is to provide a wall-mounted air conditioner indoor unit that overcomes the above problems or at least partially solves the above problems.

A further object of the present invention is to expand the functions of the air conditioner indoor unit and improve the air quality of the working environment of the air conditioner indoor unit.

The present invention provides a wall-mounted air-conditioning indoor unit, which comprises: a cover with an air inlet formed on the top; a drive mechanism arranged on the cover; a purification component connected to the drive mechanism and configured to be driven by the drive mechanism The upper part of the air inlet is raised and lowered from a predetermined distance to a position covering the air inlet, and when the purification component descends to the position covering the air inlet, it completely covers the air inlet to purify the airflow entering the indoor unit.

Optionally, there are two driving mechanisms, and the two driving mechanisms are oppositely arranged at lateral side ends of the casing.

Optionally, the driving mechanism includes: a guide rail assembly arranged on the lateral side end of the casing and extending up and down; a motor arranged on the corresponding guide rail assembly or arranged on the lateral side end of the casing; gears connected to the corresponding The output shaft of the motor is connected to rotate under the drive of the motor; the rack is meshed with the corresponding gear to slide up and down along the guide rail assembly under the rotation of the gear; and the purification assembly is connected to the rack to move up and down along the guide rail assembly with the rack slide.

Optionally, the guide rail assembly includes: a base, arranged on a lateral side end of the casing; a side cover, arranged on a side of the base away from the lateral side end of the casing, and a side of the side cover close to the base has a The first guide groove for placing the rack and the first placement groove for placing the gear extend up and down; and the output shaft of the motor passes through the base and is connected with the gear to drive the rack along the extending direction of the first guide groove Sliding: a guide rail extending up and down is formed on the side of the first guide groove close to the purification component, and the purification component slides up and down along the guide rail with the movement of the rack.

Optionally, the guide rail is formed with a hollow area extending up and down to expose the rack, so as to facilitate the connection between the rack and the purification component.

Optionally, a second guide slot adapted to the first guide slot and a second placement slot adapted to the first placement slot are formed on the side of the base close to the side cover, so as to utilize the second guide slot and the first placement slot. A guide groove constitutes a channel for the rack to move up and down, and utilizes the first placement groove and the second placement groove to form a space for accommodating the gear.

Optionally, the purification assembly includes: a bracket, the two sides of the bracket are respectively connected to corresponding racks; a purification plate is arranged on the bracket.

Optionally, the bracket includes: a support frame, used to carry the purification plate; two oppositely arranged connecting parts, the connecting parts are arranged on the side of the supporting frame corresponding to the corresponding rack; two joint parts, connected to the two connecting parts In one correspondence, the engaging portion is disposed on a side of the corresponding connecting portion close to the corresponding rack, so as to be connected with the corresponding rack.

Optionally, the shape of the support frame is adapted to the shape of the purification board, so that the purification board can be installed in the support frame.

Optionally, a mounting groove is formed on a side of the engaging portion away from the corresponding rack, and the shape of the mounting groove is adapted to the shape of the connecting portion, so that the connecting portion is mounted in the mounting groove.

The wall-mounted air conditioner indoor unit of the present invention is provided with a purification component connected to the driving mechanism, and the purification component is driven by the driving mechanism and can move to the air inlet to completely cover the air inlet, thereby purifying the airflow entering the indoor unit and improving the quality of the indoor environment. Air quality; in addition, when the ambient air quality is good and there is no need to use the purification component to purify the air, the purification component can also be driven by the driving mechanism to push upward from the position covering the air inlet, revealing the air inlet, and realizing the expansion of the function of the air conditioner indoor unit and Flexibility of use.

Further, in the wall-mounted air conditioner indoor unit of the present invention, a driving mechanism including a guide rail assembly, a motor, a gear and a rack is used, and the guide rail assembly is used to provide a sliding track for the purification assembly to move up and down with the rack, so as to improve the stability of the movement of the purification assembly. sex. Moreover, the overall structure of the drive mechanism is exquisitely designed and compact, and it is convenient to be arranged in an indoor unit with a small space, providing stable power and Move track.

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 a wall-mounted air-conditioning indoor unit according to an embodiment of the present invention when the cleaning assembly is raised to a predetermined distance from the upper part of the air inlet;

Fig. 2 is a schematic diagram of a wall-mounted air-conditioning indoor unit according to an embodiment of the present invention when the purification component is lowered to a position covering the air inlet;

Fig. 3 is a schematic diagram of a purification component and a driving mechanism in a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;

Fig. 4 is a partial structural schematic diagram of a purification component in a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;

Fig. 5 is an exploded schematic diagram of a driving mechanism in a wall-mounted air conditioner indoor unit according to an embodiment of the present invention.

detailed description

This embodiment firstly provides a wall-mounted air conditioner indoor unit 100. FIG. 1 is a schematic diagram of a wall-mounted air conditioner indoor unit 100 according to an embodiment of the present invention when the purification component 140 is raised to a predetermined distance from the upper part of the air inlet 121. Fig. 2 is a schematic diagram of when the cleaning assembly 140 of the wall-mounted air conditioner indoor unit 100 is lowered to a position covering the air inlet 121 according to an embodiment of the present invention.

The wall-mounted air conditioner indoor unit 100 may generally include a body frame 110, a casing 120, a driving mechanism 130, a purification assembly 140, and the like. An indoor heat exchanger and a fan are arranged on the frame 110 of the body, and the cover 120 is buckled on the frame 110 to seal the indoor heat exchanger and the fan. The front part of the cover 120 is provided with a front panel 150, and the front panel 150 is detachable. is installed on the casing 120 , and an air inlet 121 is formed on the top of the casing 120 .

The casing 120 is provided with a drive mechanism 130, and the purification assembly 140 is connected to the drive mechanism 130. Driven by the drive mechanism 130, the purification assembly 140 can be lifted up and down between the position where the upper part of the air inlet 121 is separated by a predetermined distance and the position where the air inlet 121 is covered. , and when the purification assembly 140 descends to the position covering the air inlet 121 , it completely covers the air inlet 121 to purify the airflow entering the indoor unit 100 .

When the air quality is medium or poor, the cleaning assembly 140 can be driven by the driving mechanism 130 from the position where the upper part of the air inlet 121 is separated from the air inlet 121 by a predetermined distance and descends to a position covering the air inlet 121, and the cleaning assembly 140 The entire surface completely covers the air inlet 121, and the airflow entering the indoor unit 100 needs to be fully purified by the purification component 140 before entering the indoor unit 100, so as to improve the air quality of the indoor environment.

When the air quality is good or excellent, the purification assembly 140 can be driven by the driving mechanism 130 from the position covering the air inlet 121 to the upper part of the air inlet 121, and the air inlet 121 is exposed, which can reduce the air resistance of the purification assembly 140 , making the air conditioner more energy-saving and environmentally friendly.

In some optional embodiments, there may be two driving mechanisms 130 , and the two driving mechanisms 130 are oppositely arranged at two side ends of the casing 120 in the transverse direction, where the transverse direction refers to the length direction of the casing 120 .

The cleaning assembly 140 is located between the two driving mechanisms 130 and is connected to the two driving mechanisms 130 respectively, and the two driving mechanisms 130 operate synchronously. Therefore, it is convenient for the purification assembly 140 to move up and down between the position above the air inlet 121 at a predetermined distance and the position covering the air inlet 121 , and the movement of the purification assembly 140 is more stable.

Fig. 3 is a schematic diagram of the purification assembly 140 and the driving mechanism 130 in the wall-mounted air conditioner indoor unit 100 according to one embodiment of the present invention, and Fig. 4 is a diagram of the purification assembly 140 in the wall-mounted air conditioner indoor unit 100 according to one embodiment of the present invention Partial structural schematic diagram, Fig. 5 is an exploded schematic diagram of the driving mechanism 130 in the wall-mounted air conditioner indoor unit 100 according to an embodiment of the present invention.

The driving mechanism 130 may include a guide rail assembly, a motor 131, a gear 132 and a rack 133. The guide rail assembly is arranged on the lateral side end of the casing 120 and extends up and down. The motor 131 is arranged on the corresponding guide rail assembly, or it may also be provided On the lateral side end of the casing 120 , the gear 132 is connected to the output shaft of the corresponding motor 131 , the rack 133 is meshed with the corresponding gear 132 , and the cleaning assembly 140 is connected to the rack 133 . The motor 131 drives the purification assembly 140 to slide up and down along the guide rail assembly through the gear 132 and the rack 133, and the purification assembly 140 moves up and down along the guide rail assembly at a predetermined distance above the air inlet 121 and a position covering the air inlet 121, and the purification assembly When 140 slides down with the guide rail assembly to cover the air inlet 121, it completely covers the air inlet 121, and the airflow entering the indoor unit 100 needs to be fully purified by the purification assembly 140 before entering the indoor unit 100, so that it can Improve the air quality of the indoor environment.

Specifically, the guide rail assembly can include a base 134 and a side cover 135, the base 134 is arranged on the lateral side end of the casing 120, for example, the base 134 can be fixed on the lateral side end of the casing 120 by screws, and the side cover 135 can be buckled. Fitted on the side of the base 134 away from the lateral end of the cover 120, and the side of the side cover 135 close to the base 134 has a first guide groove 135-1 extending up and down that matches the rack 133 and is used to place the gear 132. The first placement slot 135-2.

The side of the base 134 close to the side cover 135 is formed with a second guide groove 134-1 adapted to the first guide groove 135-1 and a second placement groove 134-2 adapted to the first placement groove 135-2, The fitting here may refer to that when the side cover 135 is fastened to the base 134, the notch of the first guide groove 135-1 and the notch of the second guide groove 134-1 just abut against each other and engage together or the first One of the guide grooves 135-1 and the second guide groove 134-1 can accommodate the other guide groove, and the notch of the first placement groove 135-2 and the notch of the second placement groove 134-2 just abut against each other. Engaged together or one of the first placement groove 135-2 and the second placement groove 134-2 can accommodate the other placement groove, so that the second guide groove 134-1 and the first guide groove 135-1 can be used A channel for the rack 133 to move up and down is formed, and a space for accommodating the gear 132 is formed by using the first placement groove 135-2 and the second placement groove 134-2. Thus, the rational arrangement of the gear 132 and the rack 133 is realized, and the disassembly and assembly of the guide rail assembly and the maintenance of the gear 132 and the rack 133 are facilitated.

The output shaft of the motor 131 passes through the base 134 and is connected with the gear 132 to drive the rack 133 to move up and down along the extending direction of the first guide groove 135-1. The guide rail 135 - 3 is consistent with the extension direction of the first guide groove 135 - 1 , and the cleaning assembly 140 slides up and down along the extension direction of the guide rail 135 - 3 with the movement of the rack 133 .

In order to facilitate the fastening of the side cover 135 and the base 134, a buckle (not shown in the figure) may be provided on the base 134, and an engaging groove (not shown in the figure) matching the buckle may be provided on the side cover 135 ) to fasten the side cover 135 on the base 134 . This facilitates the disassembly and assembly of the guide rail assembly, and also facilitates the disassembly and maintenance of the gear 132 , the rack 133 and the motor 131 .

The motor 131 can be installed on the base 134. For the convenience of the installation of the motor 131, the base 134 is formed with an escape hole for passing the output shaft of the motor 131, and the output shaft of the motor 131 passes through the escape hole and is connected with the gear 132. On the base 134, one side near the motor 131 is provided with a motor mounting stud 134-3, and the motor mounting stud 134-3 is positioned at the side of the avoidance hole, for example, two motor mounting studs 134 are arranged on opposite sides of the avoidance hole. -3. The motor 131 is provided with a lug 131 - 1 with a mounting hole, and the motor 131 is mounted on the base 134 through a threaded fastener that passes through the mounting hole and cooperates with the motor mounting stud 134 - 3 . Thus, the installation of the motor 131 and the base 134 can be realized, and it is convenient for the motor 131 to drive the gear 132 to rotate.

In order to facilitate the connection between the rack 133 and the purification assembly 140, the lower end of the rack 133 can extend out of the first guide groove 135-1, and the connection between the rack 133 and the purification assembly 140 can be located at the lower end of the rack 133 or close to the rack 133 lower end positions.

A connecting post 133 - 1 may be provided on the side of the rack 133 close to the cleaning assembly 140 , and the rack 133 is connected to the rack 133 through the connecting post 133 - 1 . In this way, the connection between the cleaning assembly 140 and the rack 133 is realized.

The side of the rack 133 near the base 134 can also be provided with at least one roller 133-2, and the roller 133-2 is accommodated in the second guide groove 134-1 and is slidably connected with the second guide groove 134-1. In the process of moving up and down, the roller 133 - 2 slides in the second guide groove 134 - 1 , so as to guide the vertical moving direction of the rack 133 . Thus, the moving direction of the rack 133 can be stabilized, and the stability of the cleaning assembly 140 sliding up and down along the guide rail 135 - 3 with the rack 133 can be improved.

It should be noted that the above terms "first" and "second" are used for description purposes only, and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features.

A section of hollow area 135-4 extending up and down can be formed on the guide rail 135-3 to expose the corresponding part of the rack 133 and the hollow area, and the connecting column 133-1 passes through the hollow area 135-4 to connect with the purification component 140. The hollow area 135-4 can extend upwards from the lower end of the guide rail 135-3. When the rack 133 drives the purification assembly 140 to move along the guide rail 135-3, a connecting column is provided on the rack 133 for connecting with the purification assembly 140 133-1 moves in the hollow area 135-4. When the rack 133 moves to the top of the hollow area 135-4, the connecting column 133-1 between the rack 133 and the purification component 140 is blocked, and the rack 133 cannot continue to move upward. In this way, the travel of the rack 133 and the cleaning assembly 140 can be limited, and the cleaning assembly 140 stays at the upper part of the air inlet 121 and at a certain distance from the air inlet 121 .

In some optional embodiments, a limit switch can also be set on the guide rail 135-3, and the connecting column 133-1 on the rack 133 used to connect with the purification assembly 140 can be used as a limit member, when the motor 131 When the purification assembly 140 is driven by the gear 132 and the rack 133 to move down to the position covering the air inlet 121, the limit switch contacts the limit member, and the output shaft of the motor 131 stops rotating, thereby avoiding the overstepping noise of the motor 131. The wear of the gear 132 and the rack 133 is reduced.

Optionally, a limit switch can be set near its upper end on the guide rail 135-3, and a limit switch can be set near its lower end. When the motor 131 drives the purification assembly 140 downward through the gear 132 and the rack 133 When moving to the position covering the air inlet 121, the limit switch near the lower end of the guide rail 135-3 contacts with the limit member, and the output shaft of the motor 131 stops rotating. When the motor 131 drives the purification assembly 140 to move upwards to a predetermined distance from the air inlet 121 through the gear 132 and the rack 133, the limit switch near the upper end of the guide rail 135-3 contacts the limit member, and the output shaft of the motor 131 stops rotating. , so as to avoid motor 131 rotation overstep noise and reduce wear of gear 132 and rack 133 .

The purification assembly 140 can be detachably connected with the driving mechanism 130 , which facilitates cleaning and replacement of the purification assembly 140 .

The purification assembly 140 can include a support and a purification plate 141 arranged on the support. The two sides of the support are respectively connected to the corresponding racks 133, and the motor 131 drives the support and the purification plate 141 on the support through the gear 132 and the rack 133 at the air inlet. The upper part of 121 moves up and down between the position with a predetermined distance and the position covering the air inlet 121. When the purification assembly 140 descends to the position covering the air inlet 121, the purification plate 141 can completely cover the air inlet 121, and the air entering the indoor unit 100 passes through The purification board 141 enters the indoor unit 100 after being sufficiently purified.

The shape and size of the purification plate 141 can be determined according to the size and shape of the air inlet 121. For example, the purification plate 141 can be a rectangle. The air inlet 121 is covered, thereby realizing sufficient purification of the airflow entering the indoor unit 100 .

The purification board 141 may include an electrostatic adsorption module, a plasma purification module, an anion generation module, a ceramic activated carbon device, etc. arranged in sequence from outside to inside.

The electrostatic adsorption module can absorb charged PM2.5 particles, efficiently filter PM2.5 particles in the environment, and the plasma purification module can capture proprietary non-paired plasma, efficiently kill bacteria and viruses, and decompose into traces of H2O and CO2 into the air , The negative ion generating module can release negative ions into the air to form oxygen negative ions, efficiently remove dust and sterilize, purify the air, and activate air molecules at the same time, improve human lung function and promote metabolism.

The bracket can include a support frame 142, two oppositely arranged connecting portions 143 and two joint portions 144, the purification plate 141 is arranged in the support frame 142, and the shape of the support frame 142 is adapted to the shape of the purification plate 141, so as to purify The board 141 is installed in the support frame 142 . The connecting portion 143 is arranged on the side of the support frame 142 corresponding to the corresponding rack 133. As shown in FIG. An engaging portion 144 is provided on one side thereof, and the engaging portion 144 is connected to the corresponding rack 133 .

The connecting column 133-1 passes through the hollow area 135-4 and connects with the joint part 144. A mounting groove 144-1 is formed on the side of the joint part 144 away from the corresponding rack 133. The shape of the mounting groove 144-1 is consistent with that of the connecting part 143. The shape is matched, and the connecting part 143 can be installed in the installation groove 144-1, and the connecting part 144-2 can be arranged in the installing groove 144-1, and the connecting part 143 is provided with a mounting hole 143 for installing the connecting part 144-2 -1, the connecting piece 144-2 is installed in the mounting hole 143-1, which facilitates the disassembly and assembly of the bracket and improves the stability of the bracket. In this way, the stability of the purification plate 141 and the bracket sliding up and down along with the guide rail 135-3 can be improved.

The present invention also provides a wall-mounted air conditioner. The wall-mounted air conditioner in this embodiment includes an outdoor unit and the wall-mounted air conditioner indoor unit 100 in any one of the above embodiments. The outdoor unit communicates with the indoor unit 100 .

In the air conditioner of this embodiment, a drive mechanism 130 and a purification assembly 140 connected to the drive mechanism 130 are provided in the indoor unit 100. The purification assembly 140 is driven by the drive mechanism 130 and can move to the air inlet 121 to completely cover the air inlet 121, thereby The airflow entering the indoor unit 100 is purified to improve the air quality of the indoor environment; in addition, when the ambient air quality is good and there is no need to use the purification component 140 to purify the air, the purification component 140 can also be driven by the drive mechanism 130 to cover the air inlet 121. Pushing out upwards reveals the air inlet 121 , which realizes the expansion of the function of the air conditioner indoor unit 100 and the flexibility of use.

The purification assembly 140 is driven by the drive mechanism 130 to move up and down between the position above the air inlet 121 at a predetermined distance and the position covering the air inlet 121. When the purification function is not activated, the purification assembly 150 is driven by the drive mechanism 130 from the air inlet 121 It is ejected upwards and is in the non-purification position; after the purification function is turned on, the purification component 140 is driven by the drive mechanism 130 and moves down to the position covering the air inlet 121, and is in the purification position to purify the airflow entering the indoor unit 100.

When the purification unit 140 is in the purification position and the non-purification position, the wind resistance of the airflow generated by the fan of the indoor unit is obviously different. After the purification function is turned on, the airflow is filtered, which will inevitably lead to the attenuation of the heat exchange effect of the heat exchanger, which is prone to high load problems , corresponding control can be carried out according to the operating mode of the air conditioner, so that the air conditioner can reduce the impact on the normal cooling or heating function of the air conditioner during purification.

In some optional embodiments, the indoor unit 100 includes a refrigeration system, a pipe temperature sensor and a controller, and the refrigeration system includes a heat exchanger arranged in the indoor unit 100 to exchange heat with the air entering the indoor unit. The tube temperature sensor is configured to detect the tube temperature of the heat exchanger of the indoor unit 100 . The controller is configured to control the driving mechanism 130 to move the cleaning assembly 140 to the cleaning position after obtaining the trigger signal for the air conditioner to enter the cleaning mode, so as to clean the airflow entering the indoor unit 100, and to clean the airflow of the indoor unit 100 according to the air condition of the indoor unit 100 when entering the cleaning mode. The heat exchanger tube temperature sets the target tube temperature in the purification mode, and performs feedback control on the refrigeration system.

The refrigeration system also includes an indoor unit fan, a compressor, and a throttling device. The controller can also perform corresponding control according to the operating mode of the air conditioner, so that the air conditioner can reduce the impact on the normal cooling or heating function of the air conditioner during purification. The controller can be configured to: obtain the tube temperature sensor to detect the heat exchanger tube temperature of the indoor unit in real time, and calculate the difference with the target tube temperature; When the difference is greater than or equal to the first temperature difference threshold and less than the second temperature difference threshold, increase the opening of the throttling device of the compression refrigeration cycle; when the difference is greater than or equal to the second temperature difference threshold, the The frequency of the compressor of the compression refrigeration cycle is reduced, wherein the second temperature difference threshold is greater than the first temperature difference threshold.

For example, after the purification function is turned on, the target tube temperature of the heat exchanger tube temperature of the indoor unit 100 can be set, and the heat exchanger tube temperature of the indoor unit 100 can be detected in real time, and the air conditioner can be adjusted according to the temperature difference between the detected tube temperature and the target tube temperature. Feedback control of the refrigeration system.

The target tube temperature can be set according to the tube temperature of the heat exchanger of the indoor unit 100 when entering the purification mode. In this embodiment, the default position of the purification component 140 is the position where no purification is performed. When the purification is started, the air conditioner is stable in operation. In the normal cooling or heating state, the heat exchanger tube temperature of the indoor unit 100 at this moment is the normal temperature of the air conditioner in the current cooling mode or heating mode, so setting the target tube temperature according to the current heat exchanger tube temperature can be Ensure that after the air conditioner starts to purify, the impact on cooling and heating is small.

A specific control method is:

When the air conditioner is in cooling operation, if the tube temperature of the heat exchanger after purification is lower than the target tube temperature and does not exceed the first temperature difference threshold (for example, 3 degrees), the fan of the indoor unit 100 can be feedback-controlled according to the difference to exchange heat. The lower the pipe temperature, the faster the speed of the fan of the indoor unit 100 . If the increase in the fan speed of the indoor unit 100 cannot ensure that the heat exchanger tube temperature remains within the first temperature difference threshold with the target tube temperature, then increase the opening of the throttling device of the compression refrigeration cycle. When the temperature difference between the tube temperature and the target tube temperature is maintained within the second temperature difference threshold, the frequency of the compressor is reduced, so as to prevent the heat exchanger temperature of the indoor unit 100 from being too low and causing a high load.

When the air conditioner is in cooling operation, if the tube temperature of the heat exchanger after purification is higher than the target tube temperature and does not exceed the first temperature difference threshold (for example, 3 degrees), feedback control can be performed on the fan of the indoor unit 100 according to the difference. The higher the heat pipe temperature is, the faster the fan speed of the indoor unit 100 is. If the increase in the fan speed of the indoor unit 100 cannot ensure that the heat exchanger tube temperature remains within the first temperature difference threshold with the target tube temperature, then increase the opening of the throttling device of the compression refrigeration cycle. When the temperature difference between the tube temperature and the target tube temperature is maintained within the second temperature difference threshold, the frequency of the compressor is reduced, so as to prevent the heat exchanger temperature of the indoor unit 100 from being too high and causing a high load.

The first temperature difference threshold and the second temperature difference threshold can be configured according to the specifications and usage requirements of the heat exchanger of the indoor unit 100, for example, the first temperature difference threshold is set to plus or minus 3 degrees Celsius, and the second temperature difference threshold is set to plus or minus 5 degrees Celsius.

The wall-mounted air-conditioning indoor unit 100 of this embodiment is provided with a purification assembly 140 connected to the driving mechanism 130, and the purification assembly 140 is driven by the driving mechanism 130 and can move to the air inlet 121 to completely cover the air inlet 121, thereby preventing the air from entering the indoor unit 100. In addition, when the ambient air quality is good and it is not necessary to use the purification assembly 140 to purify the air, the purification assembly 140 can also be driven by the drive mechanism 130 to push upward from the position covering the air inlet 121, The air inlet 121 is exposed, which realizes the expansion of the function of the air conditioner indoor unit 100 and the flexibility of use.

Furthermore, in the wall-mounted air conditioner indoor unit 100 of this embodiment, the driving mechanism 130 including the guide rail assembly, the motor 131, the gear 132 and the rack 133 is adopted, and the guide rail assembly is used to provide sliding movement for the cleaning assembly 140 to move up and down with the rack 133. The track improves the stability of the movement of the purification assembly 140 . Moreover, the overall structure of the driving mechanism 130 is exquisitely designed and compact, and it is convenient to be arranged in the indoor unit 100 with a small space. Provide stable power and moving track.

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 wall-mounted air conditioner indoor unit, comprising: a casing, the top of which is formed with an air inlet; a driving mechanism arranged on the casing; The cleaning assembly is connected to the driving mechanism and is configured to be driven by the driving mechanism to move up and down between the position above the air inlet with a predetermined distance and the position covering the air inlet, and the cleaning assembly is descending When the position of covering the air inlet is reached, the air inlet is completely covered, so as to purify the airflow entering the indoor unit. 2. The air conditioner indoor unit according to claim 1, wherein There are two driving mechanisms, and the two driving mechanisms are oppositely arranged at lateral side ends of the casing. 3. The air conditioner indoor unit according to claim 2, the driving mechanism comprising: The guide rail assembly is arranged on the lateral side end of the casing and extends up and down; The motor is arranged on the corresponding guide rail assembly or on the lateral side end of the casing; a gear connected to the corresponding output shaft of the motor to rotate under the drive of the motor; a rack meshing with a corresponding said gear to slide up and down along said rail assembly under the rotation of said gear; and The purification assembly is connected with the rack, and slides up and down along the guide rail assembly along with the rack. 4. The air conditioner indoor unit according to claim 3, the guide rail assembly comprising: a base disposed on a lateral side end of the casing; The side cover is arranged on the side of the base away from the lateral side end of the cover, and the side of the side cover close to the base has a vertically extending and is used to place the teeth in cooperation with the rack. a first guide slot for the bar and a first placement slot for placing the gear; and The output shaft of the motor passes through the base and is connected to the gear to drive the rack to slide along the extending direction of the first guide groove; A guide rail extending up and down is formed on a side of the first guide groove close to the purification assembly, and the purification assembly slides up and down along the guide rail as the rack moves. 5. The air conditioner indoor unit according to claim 4, wherein: The guide rail is formed with a hollow area extending up and down to expose the rack, so as to facilitate the connection between the rack and the purification assembly. 6. The air conditioner indoor unit according to claim 4, wherein: A second guide slot adapted to the first guide slot and a second placement slot adapted to the first placement slot are formed on a side of the base close to the side cover, so as to utilize the second slot. The guide groove and the first guide groove form a channel for the rack to move up and down, and the space for accommodating the gear is formed by the first placement groove and the second placement groove. 7. The air conditioner indoor unit according to any one of claims 3 to 6, wherein the purification component comprises: a bracket, the two sides of the bracket are respectively connected to the corresponding racks; The purification plate is arranged on the support. 8. The air conditioner indoor unit according to claim 7, wherein the bracket comprises: a support frame for carrying the purification plate; Two oppositely arranged connecting parts, the connecting parts are arranged on the side of the support frame corresponding to the corresponding rack; The two engaging portions correspond to the two connecting portions one by one, and the engaging portions are arranged on a side of the corresponding connecting portion close to the corresponding rack, and are connected to the corresponding rack. 9. The air conditioner indoor unit according to claim 8, wherein The shape of the support frame is adapted to the shape of the purification board, so that the purification board is installed in the support frame. 10. The air conditioner indoor unit according to claim 8, wherein A mounting groove is formed on a side of the engaging portion away from the corresponding rack, and the shape of the mounting groove is adapted to the shape of the connecting portion, so that the connecting portion is mounted in the mounting groove.