Air duct cleaning device and air conditioner

Abstract

The present invention discloses an air duct cleaning device and an air conditioner, and relates to the technical field of air conditioning. The air duct cleaning device comprises an air duct housing, a dust collecting cover plate and a negative pressure mechanism. An air outlet cavity is arranged in the air duct housing, and a through slot connected to the air outlet cavity is provided in the air duct housing. The dust collecting cover plate is connected to a side of the air duct housing away from the air outlet cavity, and is covered outside the through slot. The dust collecting cover plate is connected to the negative pressure mechanism, and the negative pressure mechanism is used to generate negative pressure. The dust collecting cover plate is used to collect dust from the air outlet cavity through the through slot under the action of the negative pressure mechanism. Compared with the prior art, the air duct cleaning device provided by the present invention adopts a dust collecting cover plate which is covered outside the through slot connected to the air outlet cavity and is connected to the negative pressure mechanism, so that the air duct cleaning device can realize automatic cleaning of the air duct housing, with high cleaning efficiency and good cleaning effect, thereby improving the air quality of the air outlet and enhancing the user experience.

Description

Technical Field

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

[0002] At present, after an air conditioner has been used for a long time, dust and other dirt will accumulate in its air duct. If it is not cleaned in time, it will affect the air quality and reduce the user experience. If the air duct needs to be cleaned and dusted, the parts of the air conditioner need to be disassembled one by one and then assembled after cleaning. The operation is cumbersome, time-consuming and labor-intensive. Summary of the invention

[0003] The problem solved by the present invention is how to achieve automatic cleaning of the air duct with high cleaning efficiency and good cleaning effect, improve the quality of the air outlet, and enhance the user experience.

[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 an air duct cleaning device, including an air duct housing, a dust collection cover and a negative pressure mechanism. An air outlet cavity is arranged in the air duct housing, and a through slot connected to the air outlet cavity is provided in the air duct housing. The dust collection cover is connected to the side of the air duct housing away from the air outlet cavity and is covered outside the through slot. The dust collection cover is connected to the negative pressure mechanism, and the negative pressure mechanism is used to generate negative pressure. The dust collection cover is used to vacuum the air outlet cavity through the through slot under the action of the negative pressure mechanism. Compared with the prior art, the air duct cleaning device provided by the present invention can realize automatic cleaning of the air duct housing, has high cleaning efficiency, good cleaning effect, improves the air quality of the air outlet, and enhances the user experience because it adopts a dust collection cover that is covered outside the through slot connected to the air outlet cavity and is connected to the negative pressure mechanism.

[0006] Furthermore, the dust suction cover is detachably connected to the air duct housing, and the dust suction cover can open or close the through slot, so as to facilitate installation and maintenance.

[0007] Furthermore, the dust collecting cover is provided with a connecting portion, the connecting portion is provided with a through hole, the air duct housing is provided with a fixing portion, the fixing portion is provided with a threaded hole, the through hole is used for screws to pass through, the screws are used to cooperate with the threaded holes to fix the relative position of the dust collecting cover and the air duct housing, and prevent the dust collecting cover from being displaced relative to the air duct housing.

[0008] Furthermore, the connecting part includes a first connecting part and a second connecting part, the first connecting part and the second connecting part are arranged on both sides of the dust collecting cover plate, and the fixing part includes a first fixing part and a second fixing part, the first fixing part and the second fixing part are arranged on both sides of the through slot, the first connecting part cooperates with the first fixing part, and the second connecting part cooperates with the second fixing part, so that both sides of the dust collecting cover plate are fixed on the air duct housing, thereby improving the connection stability between the dust collecting cover plate and the air duct housing.

[0009] Furthermore, the number of the first connection part and the first fixing part are both multiple, the number of the second connection part and the second fixing part are both multiple, the multiple first connection parts and the multiple second connection parts are staggered, and each first connection part cooperates with one first fixing part, so as to further improve the connection stability between the dust collection cover and the air duct housing.

[0010] Furthermore, the through slot extends along the length direction of the air duct housing. The length direction of the dust collecting cover is the same as the length direction of the air duct housing, so as to increase the dust collecting area of ​​the dust collecting cover and improve the cleaning and dust removal effect.

[0011] Furthermore, the through slot is provided with a first side wall and a second side wall opposite to each other, the first side wall is provided with a first extension portion extending toward a side away from the air outlet cavity, the second side wall is provided with a second extension portion extending toward a side away from the air outlet cavity, the cross section of the dust collecting cover is U-shaped, and the cover is provided outside the first extension portion and the second extension portion, so as to close the through slot and prevent the airflow blown out of the air outlet cavity from blowing out through the through slot.

[0012] Furthermore, the air duct cleaning device further comprises a connecting rib, which is fixedly connected between the first extension portion and the second extension portion to fix the relative position of the first extension portion and the second extension portion, thereby improving the strength of the air duct housing.

[0013] Furthermore, the dust suction cover is provided with a dust suction port, the position of which corresponds to the position of the through slot, and the dust suction port is connected to the negative pressure mechanism. The dust suction port is used for dust and other dirt to pass through, and dust and other dirt accumulated on the inner side wall of the air duct housing can enter the dust suction port through the through slot, and then enter the negative pressure mechanism, thereby realizing the dust suction function of the dust suction cover.

[0014] Furthermore, the air duct cleaning device also includes a connecting pipe, through which the dust collecting cover is connected to the negative pressure mechanism. The connecting pipe can transmit the negative pressure generated by the negative pressure mechanism to the dust collecting cover, so that the air pressure at the corresponding position of the dust collecting cover is greater than the air pressure in the negative pressure mechanism.

[0015] Furthermore, the air duct cleaning device also includes a first drive motor, a first transmission mechanism and a first brush roller, the first drive motor is connected to the first brush roller through the first transmission mechanism, the first transmission mechanism is accommodated in the through slot, the first brush roller is arranged in the air outlet cavity, and the first brush roller can be translated along the length direction of the air duct housing under the drive of the first transmission mechanism to clean the inner side wall of the air duct housing. The swept dust and other dirt enter the through slot under the action of gravity and the suction of the dust collecting cover plate, and then enter the negative pressure mechanism to realize the cleaning and dust removal of the inner side wall of the air duct housing, with good cleaning effect and high cleaning efficiency.

[0016] Furthermore, the air duct cleaning device also includes a second drive motor, a second transmission mechanism and a second brush roller, the second drive motor is connected to the second brush roller through the second transmission mechanism, the second brush roller is accommodated in the through groove, and the second brush roller can be moved out of the through groove under the drive of the second transmission mechanism, and move along the inner circumference of the air duct housing to clean the inner side wall of the air duct housing. The swept dust and other dirt enter the through groove under the action of gravity and the suction of the dust cover, and then enter the negative pressure mechanism to achieve cleaning and dust removal of the inner side wall of the air duct housing, with good cleaning effect and high cleaning efficiency.

[0017] In a second aspect, the present invention provides an air conditioner, comprising the above-mentioned air duct cleaning device, the air duct cleaning device comprising an air duct housing, a dust collecting cover plate and a negative pressure mechanism, an air outlet cavity is arranged in the air duct housing, a through slot connected to the air outlet cavity is provided in the air duct housing, the dust collecting cover plate is connected to the side of the air duct housing away from the air outlet cavity, and is covered outside the through slot, the dust collecting cover plate is connected to the negative pressure mechanism, the negative pressure mechanism is used to generate negative pressure, and the dust collecting cover plate is used to collect dust from the air outlet cavity through the through slot under the action of the negative pressure mechanism. The air conditioner can realize automatic cleaning of the air duct housing, has high cleaning efficiency, good cleaning effect, improves the air quality of the air outlet, and enhances the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an exploded view of the air duct cleaning device according to the first embodiment of the present invention from one perspective;

[0019] Figure 2 is a schematic structural diagram of the air duct cleaning device according to the first embodiment of the present invention from another perspective;

[0020] Figure 3 is an exploded view of the connection between the dust collecting cover plate and the air duct housing in the air duct cleaning device according to the first embodiment of the present invention;

[0021] Figure 4 is a cross-sectional view of the connection between the dust collecting cover plate and the air duct housing in the air duct cleaning device according to the first embodiment of the present invention;

[0022] Figure 5It is a structural schematic diagram of the connection between the first transmission mechanism and the first brush roller in the air duct cleaning device according to the first embodiment of the present invention;

[0023] Figure 6 is an exploded view of the air duct cleaning device according to the second embodiment of the present invention from one perspective;

[0024] Figure 7 is an exploded view of the connection between the second transmission mechanism and the second brush roller in the air duct cleaning device according to the second embodiment of the present invention;

[0025] Figure 8 is a schematic structural diagram of the air duct cleaning device according to the second embodiment of the present invention from another perspective;

[0026] Fig. 9 yes Figure 7 The structural diagram of the gear set;

[0027] Fig.10 2 is a schematic structural diagram of an air conditioner according to a third embodiment of the present invention.

[0028] Description of reference numerals:

[0029] 10-air conditioner; 100-air duct cleaning device; 110-air duct housing; 111-air outlet cavity; 112-through slot; 113-first side wall; 1131-first extension portion; 114-second side wall; 1141-second extension portion; 115-fixing portion; 1151-first fixing portion; 1152-second fixing portion; 116-threaded hole; 117-end wall; 118-limiting slot; 1181-first slot hole; 1182-second slot hole; 120-dust cover plate; 121-connecting portion; 1211-first connecting portion; 1212-second Connecting part; 122-through hole; 123-dust suction port; 130-negative pressure mechanism; 140-connecting rib; 150-connecting pipe; 160-first drive motor; 170-first transmission mechanism; 171-slider; 172-screw rod; 180-first brush roller; 190-second drive motor; 200-second transmission mechanism; 201-toothed belt; 202-gear set; 203-first gear; 204-second gear; 205-third gear; 206-mounting block; 210-second brush roller; 211-transmission gear; 300-crossflow fan blade. DETAILED DESCRIPTION

[0030] 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.

[0031] First embodiment

[0032] Please refer to Figure 1 and Figure 2The embodiment of the present invention provides an air duct cleaning device 100 for cleaning and removing dust from an air duct. The device can realize automatic cleaning of the air duct, has high cleaning efficiency, good cleaning effect, improves the quality of the air outlet, and enhances the user experience.

[0033] It should be noted that the air duct cleaning device 100 is applied to a wall-mounted air conditioner, which is mounted on a wall indoors and can blow hot or cold air indoors to adjust the indoor temperature. The air duct cleaning device 100 can clean and remove dust from the air duct in the wall-mounted air conditioner to remove dust and other dirt in the air duct and improve the quality of the air outflow. However, this is not limited to this. In other embodiments, the air duct cleaning device 100 can also be applied to a vertical air conditioner or a central air conditioner, and the application scenario of the air duct cleaning device 100 is not specifically limited.

[0034] The air duct cleaning device 100 includes an air duct housing 110, a dust collecting cover 120, a negative pressure mechanism 130, a connecting rib 140, a connecting pipe 150, a first driving motor 160, a first transmission mechanism 170 and a first brush roller 180. An air outlet cavity 111 is provided in the air duct housing 110, and the air flow is blown outward through the air outlet cavity 111 in the air duct housing 110 to achieve the temperature regulation function of the air conditioner. The air duct housing 110 is provided with a through slot 112 connected to the air outlet cavity 111, and the dust collecting cover 120 is connected to the side of the air duct housing 110 away from the air outlet cavity 111, and is covered outside the through slot 112. The position of the dust collecting cover 120 corresponds to the position of the through slot 112, so as to facilitate the dust collection operation of the air outlet cavity 111 through the through slot 112. The dust collecting cover 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 cover 120. The dust collecting cover 120 is used to collect dust from the air outlet cavity 111 through the through slot 112 under the action of the negative pressure mechanism 130, so as to remove dust and other dirt accumulated on the inner side wall of the air duct housing 110, thereby realizing automatic cleaning of the air duct housing 110 and improving the air quality of the air outlet.

[0035] It is worth noting that the through groove 112 is relatively provided with a first side wall 113 and a second side wall 114, and the connecting rib 140 is fixedly connected between the first side wall 113 and the second side wall 114 to fix the relative position of the first side wall 113 and the second side wall 114 to prevent the first side wall 113 and the second side wall 114 from relative displacement, thereby improving the strength of the entire air duct housing 110 and preventing the air duct housing 110 from being damaged under the action of external force. In this embodiment, the through groove 112 extends along the length direction of the air duct housing 110, that is, the extension direction of the through groove 112 is the same as the length direction of the air duct housing 110, and the length direction of the dust cover 120 is the same as the length direction of the air duct housing 110, so as to increase the area range where the dust cover 120 can perform dust collection and improve the cleaning and dust removal effect.

[0036] It should be noted that the dust collection cover 120 is connected to the negative pressure mechanism 130 via a connecting tube 150, and the connecting tube 150 can transmit the negative pressure generated by the negative pressure mechanism 130 to the dust collection cover 120, so that the air pressure at the corresponding position of the dust collection cover 120 is greater than the air pressure in the negative pressure mechanism 130, that is, the air pressure in the through groove 112 is greater than the air pressure in the negative pressure mechanism 130, thereby sucking dust and other dirt in the air outlet cavity 111 into the through groove 112, and sucking it into the negative pressure mechanism 130 through the dust collection cover 120 and the connecting tube 150, thereby realizing the dust collection function.

[0037] In this embodiment, the first drive motor 160 is connected to the first brush roller 180 through the first transmission mechanism 170. The first drive motor 160 can output power to the first transmission mechanism 170 so that the first transmission mechanism 170 drives the first brush roller 180 to move. The first transmission mechanism 170 is accommodated in the through groove 112, and the through groove 112 can shield the first transmission mechanism 170 to prevent the first transmission mechanism 170 from affecting the air outlet of the air outlet cavity 111. The first brush roller 180 is arranged in the air outlet cavity 111 and is arranged in contact with the inner wall of the air duct housing 110. The first brush roller 180 can be translated along the length direction of the air duct housing 110 under the drive of the first transmission mechanism 170 to clean the inner wall of the air duct housing 110. The swept dust and other dirt enter the through groove 112 under the action of gravity and the suction force of the dust collection cover 120, and then enter the negative pressure mechanism 130 through the connecting pipe 150 to realize cleaning and dust removal of the inner wall of the air duct housing 110, with good cleaning effect and high cleaning efficiency.

[0038] Please refer to Figure 3 and Figure 4 It should be noted that the dust cover 120 is detachably connected to the air duct housing 110, and the dust cover 120 can open or close the through slot 112 for easy installation and maintenance. After the dust cover 120 performs dust collection on the air outlet cavity 111 for a long time, dust and other dirt will accumulate on the dust cover 120, affecting the dust collection efficiency and effect. At this time, the dust cover 120 is removed from the side of the air duct housing 110 away from the air outlet cavity 111 and cleaned to remove the dust and other dirt accumulated on the dust cover 120. After cleaning, the air duct housing 110 is installed to complete the cleaning of the dust cover 120, which is convenient and quick. The dust cover 120 installed on the air duct housing 110 can continue to perform dust collection on the air outlet cavity 111 through the through slot 112, and this is repeated to improve the durability of the entire air duct cleaning device 100.

[0039] In this embodiment, the dust collecting cover plate 120 is detachably connected to the air duct housing 110 by screws to improve the connection strength between the dust collecting cover plate 120 and the air duct housing 110. Specifically, the dust collecting cover plate 120 is provided with a connecting portion 121, and the connecting portion 121 is provided with a through hole 122. The air duct housing 110 is provided with a fixing portion 115, and the fixing portion 115 is provided with a threaded hole 116. The through hole 122 is used for screws to pass through, and the screws are used to cooperate with the threaded hole 116. The screws can pass through the through hole 122 and are tightened relative to the threaded hole 116 to fix the relative position of the dust collecting cover plate 120 and the air duct housing 110, and prevent the dust collecting cover plate 120 from being displaced relative to the air duct housing 110. However, it is not limited to this. In other embodiments, the dust collection cover 120 can be snap-connected to the air duct housing 110 by a buckle, and the dust collection cover 120 can also be magnetically connected to the air duct housing 110 by a magnetic member. The detachable connection method between the dust collection cover 120 and the air duct housing 110 is not specifically limited.

[0040] In this embodiment, the connecting portion 121 includes a first connecting portion 1211 and a second connecting portion 1212. The first connecting portion 1211 and the second connecting portion 1212 are relatively arranged on two sides of the dust collecting cover plate 120, and the first connecting portion 1211 and the second connecting portion 1212 can be connected to the air duct housing 110 by screws. Further, the fixing portion 115 includes a first fixing portion 1151 and a second fixing portion 1152. The first fixing portion 1151 and the second fixing portion 1152 are relatively arranged on both sides of the through groove 112, the first connecting portion 1211 cooperates with the first fixing portion 1151, and the second connecting portion 1212 cooperates with the second fixing portion 1152. The screws can fix the relative positions of the first connecting portion 1211 and the first fixing portion 1151, and the screws can also fix the relative positions of the second connecting portion 1212 and the second fixing portion 1152, so as to fix both sides of the dust collection cover 120 on the air duct shell 110, thereby improving the connection stability between the dust collection cover 120 and the air duct shell 110.

[0041] Specifically, the number of the first connection part 1211 and the first fixing part 1151 are both multiple, the number of the second connection part 1212 and the second fixing part 1152 are both multiple, the multiple first connection parts 1211 and the multiple second connection parts 1212 are staggered, the multiple first fixing parts 1151 and the multiple second fixing parts 1152 are staggered, each first connection part 1211 cooperates with a first fixing part 1151, and each second connection part 1212 cooperates with a second fixing part 1152, so as to further improve the connection stability between the dust collection cover 120 and the air duct shell 110.

[0042] In this embodiment, the number of the first connection parts 1211 and the first fixing part 1151 are both three, and the number of the second connection parts 1212 and the second fixing part 1152 are both four. Specifically, the three first connection parts 1211 are arranged in parallel and spaced on one side of the dust collecting cover plate 120, and the four second connection parts 1212 are arranged in parallel and spaced on the other side of the dust collecting cover plate 120, wherein two second connection parts 1212 are arranged between the first first connection part 1211 and the second first connection part 1211, and the other two second connection parts 1212 are arranged between the second first connection part 1211 and the third first connection part 1211. However, it is not limited to this. In other embodiments, the number of the first connection parts 1211 and the first fixing part 1151 can be four, and the number of the second connection parts 1212 and the second fixing part 1152 can be three, and the number of the first connection parts 1211, the first fixing part 1151, the second connection parts 1212 and the second fixing part 1152 is not specifically limited.

[0043] It is worth noting that the first side wall 113 and the second side wall 114 are arranged in parallel and spaced apart, and are combined to form the through slot 112. The length direction of the first side wall 113 is the same as the length direction of the second side wall 114, and both are the length direction of the air duct housing 110. Specifically, the first side wall 113 is provided with a first extension portion 1131 extending toward a side away from the air outlet cavity 111, and the second side wall 114 is provided with a second extension portion 1141 extending toward a side away from the air outlet cavity 111. The length directions of the first extension portion 1131 and the second extension portion 1141 are both the length directions of the air duct housing 110. The first extension portion 1131 and the second extension portion 1141 can deepen the depth of the through slot 112, so that the through slot 112 can accommodate and shield the first transmission mechanism 170.

[0044] In this embodiment, the cross section of the dust collecting cover 120 is U-shaped, and the cover is arranged outside the first extension part 1131 and the second extension part 1141 to close the through slot 112 and prevent the airflow blown out of the air outlet cavity 111 from being blown out through the through slot 112. Further, the shape of the dust collecting cover 120 matches the shape of the first extension part 1131 and the second extension part 1141. When the dust collecting cover 120 is arranged outside the first extension part 1131 and the second extension part 1141, the dust collecting cover 120 abuts against a side wall of the air duct housing 110 away from the air outlet cavity 111, the end of the first extension part 1131 away from the first side wall 113 abuts against the dust collecting cover 120, and the end of the second extension part 1141 away from the second side wall 114 abuts against the dust collecting cover 120, so as to improve the connection stability between the dust collecting cover 120 and the air duct housing 110. Specifically, the connecting rib 140 is fixedly connected between the first extending portion 1131 and the second extending portion 1141 to fix the relative position of the first extending portion 1131 and the second extending portion 1141 , thereby improving the strength of the air duct housing 110 .

[0045] In this embodiment, the dust suction cover 120 is provided with a dust suction port 123, the position of the dust suction port 123 corresponds to the position of the through groove 112, the dust suction port 123 is connected to the negative pressure mechanism 130, and the dust suction port 123 is used for allowing dust and other dirt to pass through. Dust and other dirt accumulated on the inner wall of the air duct shell 110 can enter the dust suction port 123 through the through groove 112, and then enter the negative pressure mechanism 130 through the connecting pipe 150, thereby realizing the dust suction function of the dust suction cover 120.

[0046] Please refer to Figure 5 It is worth noting that the first transmission mechanism 170 includes a slider 171 and a screw 172. The first drive motor 160 is in transmission connection with the screw 172, and the first drive motor 160 can drive the screw 172 to rotate. The screw 172 is installed in the through slot 112 and can rotate relative to the through slot 112. The screw 172 extends along the extension direction of the through slot 112, that is, the axial direction of the screw 172 is the same as the extension direction of the through slot 112. The slider 171 is slidably disposed in the through slot 112 and is fixedly connected to the first brush roller 180. When the slider 171 slides in the through slot 112, it can drive the first brush roller 180 to clean the inner side wall of the air duct housing 110 along the extension direction of the through slot 112. The slider 171 is sleeved on the outside of the screw rod 172 and is threadedly matched with the screw rod 172. The rotation of the screw rod 172 can drive the slider 171 to translate along the axial direction of the screw rod 172. At the same time, the through groove 112 can limit the slider 171 to prevent the slider 171 from rotating along the circumferential direction of the screw rod 172, thereby preventing the first brush roller 180 from rotating, improving the stability of the movement of the first brush roller 180, and avoiding the first brush roller 180 from offset or tilting.

[0047] The air duct cleaning device 100 described in the embodiment of the present invention has an air outlet cavity 111 disposed in the air duct housing 110, and the air duct housing 110 has a through slot 112 communicating with the air outlet cavity 111, a dust collecting cover 120 connected to the side of the air duct housing 110 away from the air outlet cavity 111, and covered outside the through slot 112, the dust collecting cover 120 connected to the negative pressure mechanism 130, the negative pressure mechanism 130 is used to generate negative pressure, and the dust collecting cover 120 is used to collect dust from the air outlet cavity 111 through the through slot 112 under the action of the negative pressure mechanism 130. Compared with the prior art, the air duct cleaning device 100 provided by the present invention can realize automatic cleaning of the air duct housing 110, has high cleaning efficiency, good cleaning effect, improves the air quality of the air outlet, and enhances the user experience because it adopts the dust collecting cover 120 that is covered outside the through slot 112 communicating with the air outlet cavity 111 and connected to the negative pressure mechanism 130.

[0048] Second embodiment

[0049] Please refer to Figure 6 The embodiment of the present invention provides an air duct cleaning device 100. Compared with the first embodiment, the difference of this embodiment is that the cleaning structure is different. In this embodiment, the air duct cleaning device 100 no longer includes the first drive motor 160, the first transmission mechanism 170 and the first brush roller 180, but includes the second drive motor 190, the second transmission mechanism 200 and the second brush roller 210.

[0050] It should be noted that the second drive motor 190 is connected to the second brush roller 210 through the second transmission mechanism 200. The second drive motor 190 can output power to the second transmission mechanism 200, so that the second transmission mechanism 200 drives the second brush roller 210 to move. The second brush roller 210 is accommodated in the through groove 112, and the through groove 112 can shield the second brush roller 210 to prevent the second brush roller 210 from affecting the air outlet of the air outlet cavity 111. The second brush roller 210 can be moved out of the through groove 112 under the drive of the second transmission mechanism 200, and move along the inner circumference of the air duct shell 110. The second brush roller 210 can also rotate under the drive of the second transmission mechanism 200 to clean the inner wall of the air duct shell 110. The swept dust and other dirt enter the through groove 112 under the action of gravity and the suction force of the dust collection cover 120, and then enter the negative pressure mechanism 130 through the connecting pipe 150, so as to realize cleaning and dust removal of the inner wall of the air duct shell 110, with good cleaning effect and high cleaning efficiency.

[0051] Please refer to Figure 7In this embodiment, the second transmission mechanism 200 includes a toothed belt 201 and a gear set 202. The toothed belt 201 is sleeved outside the gear set 202 and meshed with the gear set 202. The rotation of the gear set 202 can drive the toothed belt 201 to rotate. The second drive motor 190 is connected to the gear set 202 to drive the toothed belt 201 to rotate through the gear set 202. A transmission gear 211 is provided at the end of the second brush roller 210. The toothed belt 201 is sleeved outside the transmission gear 211 and meshed with the transmission gear 211. The rotation of the toothed belt 201 can drive the transmission gear 211 to rotate, thereby driving the second brush roller 210 to rotate while moving along the inner circumference of the air duct housing 110, so as to clean the inner wall of the air duct housing 110. Specifically, a tooth portion (not shown) is provided on the inner side of the toothed belt 201, the gear set 202 extends from one side of the toothed belt 201 and cooperates with the tooth portion in the toothed belt 201, and the transmission gear 211 extends from the other side of the toothed belt 201 and cooperates with the tooth portion in the toothed belt 201. The width of the toothed belt 201 is greater than the sum of the width of the gear set 202 and the width of the transmission gear 211 to prevent the transmission gear 211 from interfering with the gear set 202 during rotation.

[0052] In this embodiment, the number of the second drive motor 190 and the number of the second transmission mechanism 200 are both two, and the two second drive motors 190 are relatively installed at the two ends of the air duct housing 110, and the number of the transmission gears 211 is two, and the two transmission gears 211 are relatively arranged at the two ends of the second brush roller 210. Each second drive motor 190 is connected to a transmission gear 211 through a second transmission mechanism 200 to ensure the stability of the movement of the second brush roller 210.

[0053] Please refer to Figure 8 In this embodiment, a limiting groove 118 is provided on one end wall 117 of the air duct housing 110, another limiting groove 118 is provided on the other end wall 117, a toothed belt 201 is arranged in one limiting groove 118, and another toothed belt 201 is arranged in another limiting groove 118. The limiting groove 118 can limit the toothed belt 201 so that the toothed belt 201 is arranged in contact with the inner wall of the limiting groove 118, and the toothed belt 201 can rotate relative to the inner wall of the limiting groove 118 under the action of the gear set 202, so as to drive the transmission gear 211 to move along the extending direction of the limiting groove 118.

[0054] Specifically, the two limiting grooves 118 extend in the same direction and are both bent. The 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 through slot 112, and the second slot hole 1182 extends along the inner side wall of the air duct housing 110. When the toothed belt 201 drives the transmission gear 211 to move from the first slot 1181 to the second slot 1182, the second brush roller 210 moves out from the through slot 112; when the toothed belt 201 drives the transmission gear 211 to move in the second slot 1182, the second brush roller 210 cleans the inner wall of the air duct housing 110; when the toothed belt 201 drives the transmission gear 211 to move from the second slot 1182 to the first slot 1181, the second brush roller 210 returns to the through slot 112.

[0055] Please refer to Fig. 9 , the gear set 202 includes a first gear 203, a second gear 204, a third gear 205 and a mounting block 206. The first gear 203, the second gear 204 and the third gear 205 are all mounted on the mounting block 206 and can rotate relative to the mounting block 206, and the mounting block 206 can limit the first gear 203, the second gear 204 and the third gear 205. The toothed belt 201 is simultaneously sleeved outside the first gear 203, the second gear 204 and the third gear 205, the second drive motor 190 passes through the mounting block 206 and is in transmission connection with the first gear 203, the second drive motor 190 can drive the first gear 203 to rotate, and the first gear 203 can simultaneously drive the second gear 204 and the third gear 205 to rotate through the toothed belt 201, that is, the second drive motor 190 can drive the first gear 203, the second gear 204 and the third gear 205 to rotate synchronously. Specifically, the first gear 203, the second gear 204 and the third gear 205 are arranged at intervals, the first gear 203 is arranged at the bottom of the through groove 112, the second gear 204 is arranged at the top of the through groove 112, and the third gear 205 is arranged at the upper part of the air duct housing 110. The first gear 203, the second gear 204 and the third gear 205 work together to ensure that the toothed belt 201 can operate stably, thereby driving the second brush roller 210 to rotate while moving along the inner wall of the air duct housing 110 through the transmission gear 211, thereby realizing the cleaning function and improving the cleaning effect.

[0056] The beneficial effects of the air duct housing 110 cleaning device described in the embodiment of the present invention are the same as those of the first embodiment, and are not described in detail herein.

[0057] Third embodiment

[0058] Please refer to Fig.10The present invention provides an air conditioner 10 for controlling indoor temperature. The air conditioner 10 includes a crossflow fan blade 300 and an air duct cleaning device 100. The basic structure and principle of the air duct 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.

[0059] In this embodiment, the air conditioner 10 is a wall-mounted air conditioner, and the cross-flow fan blades 300 are installed in the air outlet cavity 111 of the air duct shell 110 and extend along the length direction of the air duct shell 110. The cross-flow fan blades 300 can rotate relative to the air duct shell 110 to drive the air to form an airflow in the air outlet cavity 111 and blow it out to the room, thereby realizing the function of regulating the indoor temperature.

[0060] 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.

[0061] 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. An air duct cleaning device, characterized in that: The invention comprises an air duct housing (110), a dust collection cover plate (120) and a negative pressure mechanism (130); an air outlet cavity (111) is arranged in the air duct housing (110); the air duct housing (110) is provided with a through slot (112) communicating with the air outlet cavity (111); the dust collection cover plate (120) is connected to a side of the air duct housing (110) away from the air outlet cavity (111) and is arranged outside the through slot (112); the dust collection cover plate (120) is connected to the negative pressure mechanism (130); the negative pressure mechanism (130) is used to generate negative pressure; and the dust collection cover plate (120) is used to collect dust from the air outlet cavity (111) through the through slot (112) under the action of the negative pressure mechanism (130); The dust collection cover plate (120) is detachably connected to the air duct housing (110), and the dust collection cover plate (120) is capable of opening or closing the through slot (112); The air duct cleaning device further comprises a first drive motor (160), a first transmission mechanism (170) and a first brush roller (180); the first drive motor (160) is connected to the first brush roller (180) via the first transmission mechanism (170); the first transmission mechanism (170) is accommodated in the through groove (112); the first brush roller (180) is arranged in the air outlet cavity (111); the first brush roller (180) can be driven by the first transmission mechanism (170) to translate along the length direction of the air duct housing (110) to clean the inner side wall of the air duct housing (110); Alternatively, the air duct cleaning device further comprises a second drive motor (190), a second transmission mechanism (200) and a second brush roller (210); the second drive motor (190) is connected to the second brush roller (210) via the second transmission mechanism (200); the second brush roller (210) is accommodated in the through groove (112); the second brush roller (210) can be moved out of the through groove (112) driven by the second transmission mechanism (200) and move along the inner circumference of the air duct housing (110) to clean the inner side wall of the air duct housing (110).

2. The air duct cleaning device according to claim 1, characterized in that: The dust collection cover plate (120) is provided with a connecting portion (121), the connecting portion (121) is provided with a through hole (122), the air duct housing (110) is provided with a fixing portion (115), the fixing portion (115) is provided with a threaded hole (116), the through hole (122) is used for screws to pass through, and the screws are used to cooperate with the threaded holes (116) to fix the relative positions of the dust collection cover plate (120) and the air duct housing (110).

3. The air duct cleaning device according to claim 2, characterized in that: The connecting portion (121) comprises a first connecting portion (1211) and a second connecting portion (1212), the first connecting portion (1211) and the second connecting portion (1212) being arranged on opposite sides of the dust collecting cover plate (120), the fixing portion (115) comprises a first fixing portion (1151) and a second fixing portion (1152), the first fixing portion (1151) and the second fixing portion (1152) being arranged on opposite sides of the through groove (112), the first connecting portion (1211) being matched with the first fixing portion (1151), and the second connecting portion (1212) being matched with the second fixing portion (1152).

4. The air duct cleaning device according to claim 3, characterized in that: The number of the first connecting parts (1211) and the number of the first fixing parts (1151) are both plural, and the number of the second connecting parts (1212) and the number of the second fixing parts (1152) are both plural. The plurality of first connecting parts (1211) and the plurality of second connecting parts (1212) are staggered, and each first connecting part (1211) cooperates with one first fixing part (1151).

5. The air duct cleaning device according to claim 1, characterized in that: The through slot (112) extends along the length direction of the air duct housing (110).

6. The air duct cleaning device according to claim 1, characterized in that: The through groove (112) is provided with a first side wall (113) and a second side wall (114) opposite to each other; the first side wall (113) is provided with a first extension portion (1131) extending toward a side away from the air outlet cavity (111); the second side wall (114) is provided with a second extension portion (1141) extending toward a side away from the air outlet cavity (111); the dust collection cover plate (120) has a U-shaped cross section and is provided outside the first extension portion (1131) and the second extension portion (1141).

7. The air duct cleaning device according to claim 6, characterized in that: The air duct cleaning device further comprises a connecting rib (140), wherein the connecting rib (140) is fixedly connected between the first extension portion (1131) and the second extension portion (1141).

8. The air duct cleaning device according to claim 1, characterized in that: The dust suction cover plate (120) is provided with a dust suction port (123), the position of the dust suction port (123) corresponds to the position of the through slot (112), and the dust suction port (123) is in communication with the negative pressure mechanism (130).

9. The air duct cleaning device according to claim 1, characterized in that: The air duct cleaning device further comprises a connecting pipe (150), and the dust collecting cover plate (120) is connected to the negative pressure mechanism (130) via the connecting pipe (150).

10. An air conditioner, characterized in that: It comprises the air duct cleaning device as described in any one of claims 1 to 9.

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