Self-cleaning device and air conditioner

Abstract

The present invention discloses a self-cleaning device and an air conditioner, and relates to the technical field of air conditioning. The self-cleaning device includes an air duct, a dust collecting plate and a negative pressure mechanism. The dust collecting plate is installed in the air duct and can rotate relative to the air duct. The dust collecting plate extends along the length direction of the air duct. The dust collecting plate is connected to the negative pressure mechanism. The negative pressure mechanism is used to generate negative pressure. The dust collecting plate can be rotated to a first preset position to vacuum the air duct under the action of the negative pressure mechanism. The dust collecting plate can also be rotated to a second preset position to be close to the inner wall of the air duct, thereby avoiding affecting the air outlet of the air duct. Compared with the prior art, the self-cleaning device provided by the present invention adopts a dust collecting plate installed in the air duct and capable of rotating relative to the air duct, so that dust and other dirt in the air duct can be sucked out to clean the inside of the air duct, and the cleaning effect is good, thereby improving the air quality of the outlet air.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a self-cleaning device and an air conditioner. Background Art

[0002] At present, as the use time of the air conditioner increases, dust and other dirt will be contaminated and accumulated inside the air duct. If it is not cleaned in time, the air quality of the air conditioner will be poor, affecting the health of the user. Summary of the invention

[0003] The problem solved by the present invention is how to remove dust and other dirt in the air duct so as to remove dust and clean the inside of the air duct, thereby achieving good cleaning effect and improving the quality of the outlet air.

[0004] To solve the above problems, the technical solution of the present invention is achieved as follows:

[0005] In the first aspect, the present invention provides a self-cleaning device, including an air duct, a dust collecting plate and a negative pressure mechanism, wherein the dust collecting plate is installed in the air duct and can rotate relative to the air duct, the dust collecting plate extends along the length direction of the air duct, the dust collecting plate is connected to the negative pressure mechanism, the negative pressure mechanism is used to generate negative pressure, the dust collecting plate can rotate to a first preset position to vacuum the air duct under the action of the negative pressure mechanism, and the dust collecting plate can also rotate to a second preset position to be close to the inner wall of the air duct, thereby avoiding affecting the air outlet of the air duct. Compared with the prior art, the self-cleaning device provided by the present invention uses a dust collecting plate installed in the air duct and capable of rotating relative to the air duct, so that dust and other dirt in the air duct can be sucked out to remove dust and clean the inside of the air duct, with good cleaning effect and improved air quality.

[0006] Furthermore, the air duct is provided with a receiving groove, which extends along the length direction of the air duct, and the receiving groove is opened when the dust collecting plate is located at the first preset position, and is closed and received in the receiving groove when the dust collecting plate is located at the second preset position, so as to ensure that the dust collecting plate does not protrude from the inner side wall of the air duct, thereby avoiding the dust collecting plate from blocking and affecting the air outlet of the air duct.

[0007] Furthermore, the air duct has an air outlet, the receiving groove is arranged near the air outlet, the air outlet is located at the bottom of the air duct, and the dust collecting plate is arranged near the bottom of the air duct to absorb dust and other dirt and improve the cleaning effect.

[0008] Furthermore, the dust suction plate is provided with a dust suction port, which is provided on a side away from the air outlet when the dust suction plate is located at the first preset position, and is connected to the negative pressure mechanism. When the negative pressure mechanism is working, the air pressure at the position corresponding to the dust suction port is greater than the air pressure in the negative pressure mechanism, thereby sucking dust and other dirt at the position corresponding to the dust suction port into the negative pressure mechanism, thereby achieving the dust suction function.

[0009] Furthermore, the air duct is in a volute shape, and includes a front volute tongue and a rear volute tongue arranged opposite to each other, and the receiving groove is provided on the rear volute tongue. The dust collecting plate is used to collect dust from the air duct where the rear volute tongue is located, and the brush roller is used to clean the air duct where the rear volute tongue is located.

[0010] Furthermore, the self-cleaning device also includes a driving mechanism and a brush roller, the brush roller extends along the length direction of the air duct and is arranged in the receiving groove, the driving mechanism is in transmission connection with the brush roller, and the brush roller can move out of the receiving groove under the action of the driving mechanism and move along the inner wall of the air duct to clean the inner wall of the air duct. The swept dust and other dirt moves downward under the action of gravity and enters the negative pressure mechanism under the suction of the dust collecting plate, thereby improving the cleaning effect.

[0011] Furthermore, the driving mechanism includes a first driving motor and a transmission assembly, the first driving motor is connected to the brush roller through the transmission assembly, the brush roller can move in a direction perpendicular to the receiving groove under the drive of the transmission assembly, and the brush roller can also rotate under the drive of the transmission assembly. The brush roller can rotate while moving along the inner circumference of the air duct, so as to clean the inner wall of the air duct, and the cleaning effect is good.

[0012] Furthermore, the transmission assembly includes a toothed belt and a gear set, the toothed belt is sleeved outside the gear set and meshed with the gear set, the first drive motor is connected to the gear set in a transmission manner to drive the toothed belt to rotate, and a transmission gear is provided at the end of the brush roller, the toothed belt is sleeved outside the transmission gear and meshed with the transmission gear. The rotation of the toothed belt can drive the transmission gear to rotate, thereby driving the brush roller to rotate while moving along the inner circumference of the air duct, so as to clean the inner wall of the air duct.

[0013] Furthermore, the self-cleaning device further comprises a second driving motor, a rotating shaft is provided at the end of the dust collecting plate, and the second driving motor is in driving connection with the rotating shaft to drive the dust collecting plate to rotate relative to the air duct, thereby realizing the function of the dust collecting plate opening or closing the containing groove.

[0014] In a second aspect, the present invention provides an air conditioner, comprising the above-mentioned self-cleaning device, the self-cleaning device comprising an air duct, a dust collecting plate and a negative pressure mechanism, the dust collecting plate is installed in the air duct and can rotate relative to the air duct, the dust collecting plate extends along the length direction of the air duct, the dust collecting plate is connected to the negative pressure mechanism, the negative pressure mechanism is used to generate negative pressure, the dust collecting plate can be rotated to a first preset position to vacuum the air duct under the action of the negative pressure mechanism, and the dust collecting plate can also be rotated to a second preset position to be close to the inner wall of the air duct, thereby avoiding affecting the air outlet of the air duct. The air conditioner can absorb dust and other dirt in the air duct to remove dust and clean the inside of the air duct, with good cleaning effect, and improve the air quality of the outlet air. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1is an exploded view of the self-cleaning device according to the first embodiment of the present invention;

[0016] Figure 2 is a structural schematic diagram of a self-cleaning device according to a first embodiment of the present invention when the dust collecting plate is in a first preset position;

[0017] Figure 3 is a structural schematic diagram of the self-cleaning device according to the first embodiment of the present invention when the dust collecting plate is in the second preset position;

[0018] Figure 4 It is a structural schematic diagram of the connection between the second driving motor and the dust collecting plate in the self-cleaning device according to the first embodiment of the present invention;

[0019] Figure 5 is a cross-sectional view of a self-cleaning device according to a first embodiment of the present invention;

[0020] Figure 6 yes Figure 5 A partial enlarged view of the middle VI;

[0021] Figure 7 is an exploded view of the connection between the driving mechanism and the brush roller in the self-cleaning device according to the first embodiment of the present invention;

[0022] Figure 8 It is a schematic structural diagram of the connection between the air duct and the toothed belt in the self-cleaning device according to the first embodiment of the present invention;

[0023] Fig. 9 yes Figure 7 The structural diagram of the gear set;

[0024] Fig.10 2 is a schematic structural diagram of an air conditioner according to a second embodiment of the present invention.

[0025] Description of reference numerals:

[0026] 10-air conditioner; 100-self-cleaning device; 110-air duct; 111-accommodating groove; 1111-first side wall; 1112-second side wall; 1113-bottom wall; 112-first end wall; 113-second end wall; 114-limiting hole; 115-air outlet; 116-front volute tongue; 117-rear volute tongue; 118-first limiting groove; 1181-first slot hole; 1182-second slot hole; 120-dust collecting plate; 1 21-rotating shaft; 122-fixed shaft; 123-dust suction port; 130-negative pressure mechanism; 140-driving mechanism; 141-first driving motor; 142-transmission assembly; 143-toothed belt; 144-gear set; 145-first gear; 146-second gear; 147-third gear; 148-mounting plate; 150-brush roller; 151-transmission gear; 160-second driving motor; 200-crossflow fan blade. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] First embodiment

[0029] Please refer to Figure 1 The embodiment of the present invention provides a self-cleaning device 100 for cleaning an air duct 110. The self-cleaning device 100 can remove dust and other dirt in the air duct 110 to remove dust and clean the inside of the air duct 110, with good cleaning effect and improved air quality.

[0030] It should be noted that the self-cleaning device 100 is applied to a wall-mounted air conditioner, which is mounted on a wall in a room. The wall-mounted air conditioner can blow hot or cold air into the room to adjust the indoor temperature. The self-cleaning device 100 can remove dust and other dirt in the air duct 110 to remove dust and clean the inside of the air duct 110, thereby improving the air quality of the air outlet of the wall-mounted air conditioner and protecting the health of the user. However, it is not limited to this. In other embodiments, the self-cleaning device 100 can also be applied to a vertical air conditioner or a central air conditioner, and the application scenario of the self-cleaning device 100 is not specifically limited.

[0031] The self-cleaning device 100 includes an air duct 110, a dust collecting plate 120, a negative pressure mechanism 130, a driving mechanism 140, a brush roller 150, and a second driving motor 160. The dust collecting plate 120 is installed in the air duct 110 and can rotate relative to the air duct 110. The second driving motor 160 is connected to the dust collecting plate 120, and the second driving motor 160 can drive the dust collecting plate 120 to rotate. The dust collecting plate 120 extends along the length direction of the air duct 110, that is, the length direction of the dust collecting plate 120 is the same as the length direction of the air duct 110, so as to increase the area where the dust collecting plate 120 can collect dust and improve the cleaning effect. The dust collecting plate 120 is connected to the negative pressure mechanism 130, and the negative pressure mechanism 130 is used to generate negative pressure to realize the dust collecting function of the dust collecting plate 120. The dust collecting plate 120 can rotate to a first preset position to vacuum the air duct 110 under the action of the negative pressure mechanism 130 , and the dust collecting plate 120 can also rotate to a second preset position to be close to the inner wall of the air duct 110 , thereby avoiding affecting the air outlet of the air duct 110 .

[0032] Please refer to Figure 2 , Figure 3 and Figure 4 It should be noted that the air duct 110 is provided with a receiving groove 111, and the receiving groove 111 extends along the length direction of the air duct 110, that is, the extending direction of the receiving groove 111 is the same as the length direction of the air duct 110. When the dust collecting plate 120 is located at the first preset position, the receiving groove 111 is opened to vacuum the inside of the air duct 110 under the action of the negative pressure mechanism 130; when the dust collecting plate 120 is located at the second preset position, the receiving groove 111 is closed and accommodated in the receiving groove 111 to ensure that the dust collecting plate 120 does not protrude from the inner side wall of the air duct 110, thereby preventing the dust collecting plate 120 from blocking and affecting the air outlet of the air duct 110.

[0033] It is worth noting that the brush roller 150 extends along the length direction of the air duct 110 and is arranged in the receiving groove 111, that is, the axial direction of the brush roller 150 is the same as the extension direction of the receiving groove 111, and the receiving groove 111 can shield the brush roller 150. The driving mechanism 140 is in transmission connection with the brush roller 150, and the driving mechanism 140 can drive the brush roller 150 to move. The brush roller 150 can move out of the receiving groove 111 under the action of the driving mechanism 140, and move along the inner side wall of the air duct 110 to clean the inner side wall of the air duct 110. The dust and other dirt swept down move downward under the action of gravity, and enter the negative pressure mechanism 130 under the suction of the dust collecting plate 120, thereby improving the cleaning effect.

[0034] Specifically, when it is necessary to remove dust and clean the inside of the air duct 110, first the second drive motor 160 drives the dust collecting plate 120 to rotate to a first preset position to open the receiving groove 111, and then the negative pressure mechanism 130 is started to make the dust collecting plate 120 generate suction, and then the drive mechanism 140 drives the brush roller 150 to move out of the receiving groove 111 and move along the inner wall of the air duct 110. At this time, the movement direction of the brush roller 150 is the inner circumference of the air duct 110, that is, the brush roller 150 moves in a direction perpendicular to its axial direction and in contact with the inner wall of the air duct 110 to clean the inner wall of the air duct 110. At the same time, the swept dust and other dirt enters the negative pressure mechanism 130 under the suction of the dust collecting plate 120, thereby realizing the dust removal and cleaning function. When the brush roller 150 finishes cleaning, the driving mechanism 140 drives the brush roller 150 to reset and return to the receiving groove 111. The second driving motor 160 drives the dust collecting plate 120 to rotate to the second preset position to close the receiving groove 111. The negative pressure mechanism 130 stops running, and the dust removal and cleaning operation of the air duct 110 is completed.

[0035] In this embodiment, a rotating shaft 121 is provided at the end of the dust collecting plate 120, and the second driving motor 160 is in transmission connection with the rotating shaft 121 to drive the dust collecting plate 120 to rotate relative to the air duct 110, thereby realizing the function of the dust collecting plate 120 opening or closing the receiving groove 111. Specifically, a rotating shaft 121 is provided at one end of the dust collecting plate 120, and a fixed shaft 122 is provided at the other end. The rotating shaft 121 and the fixed shaft 122 are coaxially arranged, and the axial directions of the rotating shaft 121 and the fixed shaft 122 are both the length direction of the dust collecting plate 120. The dust collecting plate 120 can rotate with its length direction as the axial direction, thereby opening or closing the receiving groove 111.

[0036] It should be noted that the air duct 110 is provided with a first end wall 112 and a second end wall 113 along its length direction, the first end wall 112 and the second end wall 113 are arranged in parallel and spaced apart, the dust collecting plate 120 is provided with one end of the rotating shaft 121 close to the first end wall 112, and the dust collecting plate 120 is provided with one end of the fixed shaft 122 close to the second end wall 113. Specifically, the second drive motor 160 is installed on the side of the first end wall 112 away from the second end wall 113, extends into the first end wall 112, and is transmission-connected with the rotating shaft 121. The second end wall 113 is provided with a limiting hole 114, the fixed shaft 122 extends into the limiting hole 114, and is rotatably matched with the limiting hole 114, the fixed shaft 122 can rotate relative to the limiting hole 114, and the limiting hole 114 can limit the position of the fixed shaft 122, so that the fixed shaft 122 can only rotate in the limiting hole 114, and prevent the fixed shaft 122 from being separated from the limiting hole 114.

[0037] In this embodiment, when the dust collection plate 120 is located at the first preset position, the dust collection plate 120 is arranged perpendicular to the inner wall of the air duct 110 to further increase the area where the dust collection plate 120 can collect dust and improve the dust collection effect; when the dust collection plate 120 is located at the second preset position, the dust collection plate 120 is arranged in the receiving groove 111, and the dust collection plate 120 covers the notch of the receiving groove 111, and the side of the dust collection plate 120 away from the bottom wall 1113 of the receiving groove 111 is flush with the inner wall of the air duct 110, so that the airflow blown out by the wall-mounted air conditioner can be blown out along the inner wall of the air duct 110 and the dust collection plate 120, thereby preventing the dust collection plate 120 from affecting the air outlet of the air duct 110.

[0038] Specifically, the angle between the dust collecting plate 120 at the first preset position and the dust collecting plate 120 at the second preset position is 90 degrees, that is, the dust collecting plate 120 rotates 90 degrees under the drive of the second drive motor 160, and can rotate from the first preset position to the second preset position, and the dust collecting plate 120 reverses 90 degrees under the drive of the second drive motor 160, and can rotate from the second preset position to the first preset position. However, it is not limited to this. In other embodiments, the angle between the dust collecting plate 120 at the first preset position and the dust collecting plate 120 at the second preset position can be 70 degrees or 110 degrees, and the angle between the dust collecting plate 120 at the first preset position and the dust collecting plate 120 at the second preset position is not specifically limited.

[0039] It is worth noting that the air duct 110 has an air outlet 115, and the airflow formed in the air duct 110 is blown outward through the air outlet 115 to adjust the indoor temperature. The accommodating groove 111 is arranged close to the air outlet 115, that is, the dust collecting plate 120 is arranged close to the air outlet 115. Specifically, the air outlet 115 is located at the bottom of the air duct 110, and the dust collecting plate 120 is arranged close to the bottom of the air duct 110, so as to absorb the dust and other dirt swept by the brush roller 150, thereby improving the cleaning effect.

[0040] In this embodiment, the dust suction plate 120 is provided with a dust suction port 123, which is provided on a side away from the air outlet 115 when the dust suction plate 120 is located at the first preset position, and the dust suction port 123 is connected to the negative pressure mechanism 130. When the negative pressure mechanism 130 is working, the air pressure at the position corresponding to the dust suction port 123 is greater than the air pressure in the negative pressure mechanism 130, so that the dust and other dirt at the position corresponding to the dust suction port 123 are sucked into the negative pressure mechanism 130, thereby realizing the dust suction function. Specifically, since the air outlet 115 is located at the bottom of the air duct 110, the swept dust and other dirt will move along the inner wall of the air duct 110 toward the air outlet 115 under the action of gravity. In this process, the dust suction plate 120 can intercept the dust and other dirt, and suck it into the negative pressure mechanism 130 through the dust suction port 123 to improve the cleaning effect.

[0041] In this embodiment, the dust suction port 123 is strip-shaped and extends along the length direction of the dust suction plate 120. There are two dust suction ports 123. The two dust suction ports 123 are arranged in parallel and spaced apart and are both connected to the negative pressure mechanism 130. The two dust suction ports 123 can both suck in dust and other dirt in the air duct 110 to improve the dust suction efficiency and enhance the dust suction effect. However, this is not limited to this. In other embodiments, the dust suction port 123 can be circular, and the number of the dust suction ports 123 can be eight. The shape and number of the dust suction ports 123 are not specifically limited.

[0042] In this embodiment, the air duct 110 is in a volute shape, and the air duct 110 includes a front volute tongue 116 and a rear volute tongue 117 that are arranged opposite to each other, the front volute tongue 116 is arranged above the rear volute tongue 117, and the front volute tongue 116 and the rear volute tongue 117 are both used to guide the outlet airflow so that the airflow in the air duct 110 can be blown out to the room through the air outlet 115. Specifically, the accommodating groove 111 is opened on the rear volute tongue 117, the dust collecting plate 120 is used to collect dust from the air duct 110 where the rear volute tongue 117 is located, and the brush roller 150 is used to clean the air duct 110 where the rear volute tongue 117 is located.

[0043] Please refer to Figure 5 and Figure 6 It should be noted that the receiving groove 111 includes a first side wall 1111, a second side wall 1112 and a bottom wall 1113, wherein the first side wall 1111 and the second side wall 1112 are arranged opposite to each other, the first side wall 1111 is fixedly connected to the second side wall 1112 through the bottom wall 1113, and the first side wall 1111 is arranged on a side of the second side wall 1112 close to the air outlet 115. In this embodiment, the rotating shaft 121 of the dust collecting plate 120 is arranged close to the first side wall 1111, and the dust collecting plate 120 can rotate in a direction close to the second side wall 1112 to close the receiving groove 111, and the dust collecting plate 120 can also rotate in a direction away from the second side wall 1112 to open the receiving groove 111. When the dust suction plate 120 is located at the first preset position, the dust suction plate 120 is coplanar with the first side wall 1111, and the dust suction port 123 on the dust suction plate 120 faces the second side wall 1112. At this time, the brush roller 150 can move out of the accommodating groove 111 and move in the direction away from the dust suction plate 120; when the dust suction plate 120 is located at the second preset position, the dust suction plate 120 is parallel to and spaced apart from the bottom wall 1113, and the dust suction port 123 on the dust suction plate 120 faces the bottom wall 1113. One side of the dust suction plate 120 is in contact with the first side wall 1111, and the other side is in contact with the second side wall 1112. At this time, the brush roller 150 is accommodated in the accommodating groove 111 and cannot move outward.

[0044] Please refer to Figure 7 , Figure 8 and Fig. 9The driving mechanism 140 includes a first driving motor 141 and a transmission assembly 142. The first driving motor 141 is connected to the brush roller 150 through the transmission assembly 142. The first driving motor 141 can apply power to the transmission assembly 142. The brush roller 150 can move in a direction perpendicular to the receiving groove 111 under the drive of the transmission assembly 142. The brush roller 150 can also rotate under the drive of the transmission assembly 142. The brush roller 150 can rotate while moving along the inner circumference of the air duct 110, so as to clean the inner wall of the air duct 110, and the cleaning effect is good.

[0045] The transmission assembly 142 includes a toothed belt 143 and a gear set 144. The toothed belt 143 is sleeved outside the gear set 144 and meshed with the gear set 144. The rotation of the gear set 144 can drive the toothed belt 143 to rotate. The first drive motor 141 is in transmission connection with the gear set 144 to drive the toothed belt 143 to rotate through the gear set 144. A transmission gear 151 is provided at the end of the brush roller 150. The toothed belt 143 is sleeved outside the transmission gear 151 and meshed with the transmission gear 151. The rotation of the toothed belt 143 can drive the transmission gear 151 to rotate, thereby driving the brush roller 150 to rotate while moving along the inner circumference of the air duct 110, so as to clean the inner wall of the air duct 110. Specifically, a tooth portion (not shown) is provided on the inner side of the toothed belt 143, the gear set 144 extends from one side of the toothed belt 143 and cooperates with the tooth portion inside the toothed belt 143, the transmission gear 151 extends from the other side of the toothed belt 143 and cooperates with the tooth portion inside the toothed belt 143, and the width of the toothed belt 143 is greater than the sum of the width of the gear set 144 and the width of the transmission gear 151 to prevent the transmission gear 151 from interfering with the gear set 144 during rotation.

[0046] In this embodiment, there are two driving mechanisms 140, which are relatively installed on the first end wall 112 and the second end wall 113. There are two transmission gears 151, which are relatively arranged at the two ends of the brush roller 150 and rotate synchronously. Each driving mechanism 140 is connected to a transmission gear 151 to ensure the stability of the movement of the brush roller 150.

[0047] In this embodiment, a first limiting groove 118 is provided on the first end wall 112, and a second limiting groove (not shown) is provided on the second end wall 113. A toothed belt 143 is disposed in the first limiting groove 118, and another toothed belt 143 is disposed in the second limiting groove. The first limiting groove 118 can limit the toothed belt 143 so that the toothed belt 143 is arranged in contact with the inner wall of the first limiting groove 118. The toothed belt 143 can rotate relative to the inner wall of the first limiting groove 118 under the action of the gear set 144 to drive the transmission gear 151 to move along the extension direction of the first limiting groove 118. Similarly, the second limiting groove can limit the toothed belt 143 so that the toothed belt 143 is arranged in contact with the inner wall of the second limiting groove. The toothed belt 143 can rotate relative to the inner wall of the second limiting groove under the action of the gear set 144 to drive the transmission gear 151 to move along the extension direction of the second limiting groove.

[0048] Specifically, the extension direction of the first limiting groove 118 is the same as that of the second limiting groove, and both are bent. The first limiting groove 118 includes a first slot hole 1181 and a second slot hole 1182 arranged at a preset angle, the first slot hole 1181 is connected to the second slot hole 1182, the position of the first slot hole 1181 corresponds to the position of the accommodating groove 111, and the second slot hole 1182 extends along the inner side wall of the air duct 110. When the toothed belt 143 drives the transmission gear 151 to move from the first slot 1181 to the second slot 1182, the brush roller 150 moves out of the accommodating groove 111; when the toothed belt 143 drives the transmission gear 151 to move in the second slot 1182, the brush roller 150 cleans the inner wall of the air duct 110; when the toothed belt 143 drives the transmission gear 151 to move from the second slot 1182 to the first slot 1181, the brush roller 150 returns to the accommodating groove 111. Similarly, the shape and working principle of the second limiting groove are the same as those of the first limiting groove 118, which will not be described in detail.

[0049] The gear set 144 includes a first gear 145, a second gear 146, a third gear 147 and a mounting plate 148, wherein the first gear 145, the second gear 146 and the third gear 147 are all mounted on the mounting plate 148 and can rotate relative to the mounting plate 148, and the mounting plate 148 can limit the first gear 145, the second gear 146 and the third gear 147. The toothed belt 143 is simultaneously sleeved outside the first gear 145, the second gear 146 and the third gear 147, and the first drive motor 141 is transmission-connected with the first gear 145, the first drive motor 141 can drive the first gear 145 to rotate, and the first gear 145 can simultaneously drive the second gear 146 and the third gear 147 to rotate through the toothed belt 143, that is, the first drive motor 141 can drive the first gear 145, the second gear 146 and the third gear 147 to rotate synchronously. Specifically, the first gear 145, the second gear 146 and the third gear 147 are arranged at intervals, the first gear 145 is arranged at the bottom of the accommodating groove 111, the second gear 146 is arranged at the top of the accommodating groove 111, and the third gear 147 is arranged at the upper part of the air duct 110 where the rear volute tongue 117 is located. The first gear 145, the second gear 146 and the third gear 147 work together to ensure that the toothed belt 143 can operate stably, thereby driving the brush roller 150 to rotate while moving along the inner wall of the air duct 110 through the transmission gear 151, thereby realizing the cleaning function and improving the cleaning effect.

[0050] In the self-cleaning device 100 described in the embodiment of the present invention, the dust collecting plate 120 is installed in the air duct 110 and can rotate relative to the air duct 110. The dust collecting plate 120 extends along the length direction of the air duct 110. The dust collecting plate 120 is connected to the negative pressure mechanism 130. The negative pressure mechanism 130 is used to generate negative pressure. The dust collecting plate 120 can rotate to a first preset position to vacuum the air duct 110 under the action of the negative pressure mechanism 130. The dust collecting plate 120 can also rotate to a second preset position to be close to the inner wall of the air duct 110, thereby avoiding affecting the air outlet of the air duct 110. Compared with the prior art, the self-cleaning device 100 provided by the present invention adopts the dust collecting plate 120 installed in the air duct 110 and can rotate relative to the air duct 110, so that dust and other dirt in the air duct 110 can be sucked out to clean the inside of the air duct 110, with good cleaning effect and improved air quality.

[0051] Second embodiment

[0052] Please refer to Fig.10The present invention provides an air conditioner 10 for controlling indoor temperature. The air conditioner 10 includes a self-cleaning device 100 and a crossflow fan blade 200. The basic structure and principle of the self-cleaning device 100 and the technical effect produced are the same as those of the first embodiment. For the sake of brief description, for the parts not mentioned in this embodiment, reference can be made to the corresponding contents in the first embodiment.

[0053] In this embodiment, the air conditioner 10 is a wall-mounted air conditioner, and the cross-flow fan blades 200 are installed in the air duct 110 and extend along the length direction of the air duct 110. The cross-flow fan blades 200 can rotate relative to the air duct 110 to drive the air to form an airflow in the air duct 110 and blow it out to the room through the air outlet 115, thereby achieving the regulation of indoor temperature.

[0054] The beneficial effects of the air conditioner 10 described in the embodiment of the present invention are the same as those of the first embodiment, and will not be described in detail herein.

[0055] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A self-cleaning device, characterized in that: The invention comprises an air duct (110), a dust collecting plate (120) and a negative pressure mechanism (130); the dust collecting plate (120) is installed in the air duct (110) and can rotate relative to the air duct (110); the dust collecting plate (120) extends along the length direction of the air duct (110); the dust collecting plate (120) is connected to the negative pressure mechanism (130); the negative pressure mechanism (130) is used to generate negative pressure; the dust collecting plate (120) can rotate to a first preset position so as to collect dust from the air duct (110) under the action of the negative pressure mechanism (130); the dust collecting plate (120) can also rotate to a second preset position so as to be close to the inner wall of the air duct (110) so as to avoid affecting the air outlet of the air duct (110); The air duct (110) is provided with a receiving groove (111), and the receiving groove (111) extends along the length direction of the air duct (110); when the dust suction plate (120) is located at the first preset position, the receiving groove (111) is opened; when the dust suction plate (120) is located at the second preset position, the receiving groove (111) is closed and received in the receiving groove (111).

2. The self-cleaning device according to claim 1, characterized in that: The air duct (110) has an air outlet (115), and the receiving groove (111) is arranged close to the air outlet (115).

3. The self-cleaning device according to claim 2, characterized in that: The dust suction plate (120) is provided with a dust suction port (123), and the dust suction port (123) is provided on a side away from the air outlet (115) when the dust suction plate (120) is located at the first preset position, and the dust suction port (123) is connected to the negative pressure mechanism (130).

4. The self-cleaning device according to claim 1, characterized in that: The air duct (110) is in the shape of a volute, and comprises a front volute tongue (116) and a rear volute tongue (117) which are arranged opposite to each other, and the accommodating groove (111) is provided on the rear volute tongue (117).

5. The self-cleaning device according to claim 1, characterized in that: The self-cleaning device further comprises a driving mechanism (140) and a brush roller (150); the brush roller (150) extends along the length direction of the air duct (110) and is arranged in the receiving groove (111); the driving mechanism (140) is transmission-connected to the brush roller (150); the brush roller (150) can be moved out of the receiving groove (111) under the action of the driving mechanism (140) and move along the inner side wall of the air duct (110) to clean the inner side wall of the air duct (110).

6. The self-cleaning device according to claim 5, characterized in that: The driving mechanism (140) comprises a first driving motor (141) and a transmission assembly (142); the first driving motor (141) is connected to the brush roller (150) via the transmission assembly (142); the brush roller (150) can move in a direction perpendicular to the receiving groove (111) under the drive of the transmission assembly (142); and the brush roller (150) can also rotate under the drive of the transmission assembly (142).

7. The self-cleaning device according to claim 6, characterized in that: The transmission assembly (142) comprises a toothed belt (143) and a gear set (144); the toothed belt (143) is sleeved outside the gear set (144) and meshed with the gear set (144); the first drive motor (141) is transmission-connected to the gear set (144) to drive the toothed belt (143) to rotate; a transmission gear (151) is provided at the end of the brush roller (150); the toothed belt (143) is sleeved outside the transmission gear (151) and meshed with the transmission gear (151).

8. The self-cleaning device according to any one of claims 1 to 7, characterized in that: The self-cleaning device further comprises a second driving motor (160); a rotating shaft (121) is provided at the end of the dust collecting plate (120); and the second driving motor (160) is transmission-connected to the rotating shaft (121) to drive the dust collecting plate (120) to rotate relative to the air duct (110).

9. An air conditioner, characterized in that: Comprising a self-cleaning device as claimed in any one of claims 1 to 8.

Images