Air duct dust removal device and air conditioner

Abstract

The present invention discloses an air duct dust removal device and an air conditioner, and relates to the technical field of air conditioning. The air duct dust removal device comprises an air duct, a driving motor, a transmission mechanism and a dust removal member. The driving motor is connected to the dust removal member through the transmission mechanism, and the dust removal member is arranged in the air duct, and can be translated along the length direction of the air duct under the drive of the transmission mechanism. Compared with the prior art, the air duct dust removal device provided by the present invention adopts a dust removal member arranged in the air duct and connected to the driving motor through the transmission mechanism, so it can absorb dust and other dirt in the air duct, has a good dust removal effect, improves the cleanliness of the air conditioner, and protects the health of users.

Description

Technical Field

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

[0002] At present, with the improvement of living standards, people have higher and higher requirements for the cleanliness of air conditioners. As the operation time of current air conditioners increases, the air ducts will be contaminated with dust, lint and other dirt, which can easily lead to bacterial growth and affect the health of users. Summary of the invention

[0003] The problem solved by the invention is how to remove dust and other dirt in the air duct, achieve good dust removal effect, improve the cleanliness of the air conditioner, and protect the health of users.

[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 dust removal device, comprising an air duct, a driving motor, a transmission mechanism and a dust removal member, wherein the driving motor is connected to the dust removal member through the transmission mechanism, and the dust removal member is arranged in the air duct and can be translated along the length direction of the air duct under the drive of the transmission mechanism. Compared with the prior art, the air duct dust removal device provided by the present invention can absorb dust and other dirt in the air duct because it adopts a dust removal member arranged in the air duct and connected to the driving motor through the transmission mechanism, and has a good dust removal effect, thereby improving the cleanliness of the air conditioner and protecting the health of users.

[0006] Furthermore, the transmission mechanism includes a first screw rod, the driving motor is in transmission connection with the first screw rod, the first screw rod is installed in the air duct and can rotate relative to the air duct, the first screw rod extends along the length direction of the air duct, the dust removal piece is sleeved outside the first screw rod and is threadedly matched with the first screw rod. The rotation of the first screw rod can drive the dust removal piece to translate along the axial direction of the first screw rod.

[0007] Furthermore, the first screw rod is arranged at the lower side of the air outlet of the air duct, so as to facilitate the design and arrangement of the installation position of the drive motor and facilitate installation.

[0008] Furthermore, the transmission mechanism also includes a second screw and a transmission assembly, the second screw is installed in the air duct and can rotate relative to the air duct, the second screw is arranged parallel to the first screw and is connected to the first screw through the transmission assembly, and the dust removal piece is sleeved outside the first screw and the second screw, and is respectively threaded with the first screw and the second screw. The rotation of the second screw can drive the dust removal piece to translate along the axial direction of the second screw.

[0009] Furthermore, the second screw rod is arranged on the upper side of the air outlet of the air duct, so as to make full use of the space in the air duct, save the occupied space, and avoid affecting the air outlet of the air duct.

[0010] Furthermore, the transmission assembly includes a first pulley, a second pulley and a transmission belt, the first pulley is sleeved outside the first screw and fixedly connected to the first screw, the second pulley is sleeved outside the second screw and fixedly connected to the second screw, and the first pulley is connected to the second pulley through the transmission belt. The rotation of the first pulley can drive the second pulley to rotate synchronously.

[0011] Furthermore, the transmission assembly also includes a third screw rod, which is installed in the air duct and can rotate relative to the air duct. The third screw rod is arranged in parallel with the first screw rod and is spaced apart from the first screw rod, and is respectively connected to the first screw rod and the second screw rod through the transmission assembly. The dust removal piece is sleeved outside the first screw rod, the second screw rod and the third screw rod, and is respectively threaded with the first screw rod, the second screw rod and the third screw rod. The rotation of the third screw rod can drive the dust removal piece to translate along the axial direction of the third screw rod.

[0012] Furthermore, the third screw rod is arranged at the rear side of the air duct, so as to make full use of the space in the air duct, save the occupied space, and avoid affecting the air outlet of the air duct.

[0013] Furthermore, the transmission mechanism also includes a limit rod, which is fixedly installed in the air duct and arranged parallel to the first screw rod, and the dust removal piece is sleeved outside the limit rod and slidably cooperates with the limit rod. The limit rod can limit the dust removal piece so that the dust removal piece can only translate along the axial direction of the first screw rod, preventing the dust removal piece from being offset or tilted, and improving the stability of the movement of the dust removal piece.

[0014] Furthermore, there are two limit rods, which are arranged in parallel and spaced apart, and both are slidably matched with the dust removal member. Both limit rods can limit the dust removal member, so as to further improve the limiting effect of the dust removal member and further improve the stability of the movement of the dust removal member.

[0015] Furthermore, the air duct dust removal device also includes a crossflow fan blade, which is installed in the air duct and can rotate relative to the air duct, and the crossflow fan blade extends along the length direction of the air duct, and the dust removal member is arranged between the crossflow fan blade and the air duct. The dust removal member can perform dust removal operations on the inner side wall of the air duct and the crossflow fan blade to enhance the dust removal effect and further improve the cleanliness of the blown air flow.

[0016] Furthermore, the dust removal member is provided with a first dust removal surface and a second dust removal surface opposite to each other, the first dust removal surface and the second dust removal surface are both arranged in an arc shape, the first dust removal surface is arranged outside the crossflow fan blade and is arranged at intervals from the crossflow fan blade, and the second dust removal surface is arranged at intervals in the air duct, so as to prevent the dust removal member from interfering with the crossflow fan blade and the inner wall of the air duct during translation.

[0017] Furthermore, the first dust removal surface is covered with a first brush part, and the second dust removal surface is covered with a second brush part, the first brush part is used to clean the crossflow blades, and the second brush part is used to clean the inner wall of the air duct, so as to realize the cleaning operation of the crossflow blades and the inner wall of the air duct and improve the dust removal effect.

[0018] Furthermore, the dust removal member is provided with a dust removal cavity, a first dust removal groove is provided on the first dust removal surface, a second dust removal groove is provided on the second dust removal surface, and the first dust removal groove and the second dust removal groove are both connected to the dust removal cavity. The first dust removal groove and the second dust removal groove are both used for dirt to pass through so that the dirt enters the dust removal cavity.

[0019] Furthermore, the air duct dust removal device also includes a dust suction pipe and a negative pressure mechanism, one end of the dust suction pipe is connected to the dust removal member, and the other end is connected to the negative pressure mechanism, and the negative pressure mechanism is used to generate negative pressure, so that the air pressure at the corresponding position of the dust removal member is greater than the air pressure in the negative pressure mechanism, so that the dirt at the corresponding position of the dust removal member is sucked into the negative pressure mechanism through the dust suction pipe, thereby realizing the dust suction function.

[0020] In a second aspect, the present invention provides an air conditioner, comprising the above-mentioned air duct dust removal device, the air duct dust removal device comprising an air duct, a drive motor, a transmission mechanism and a dust removal member, the drive motor is connected to the dust removal member through the transmission mechanism, the dust removal member is arranged in the air duct, and can be translated along the length direction of the air duct under the drive of the transmission mechanism. The air conditioner can absorb and remove dust and other dirt in the air duct, has a good dust removal effect, improves the cleanliness level, and protects the health of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is an exploded view of the air duct dust removal device according to the first embodiment of the present invention;

[0022] Figure 2 It is a schematic structural diagram of the connection between the first screw rod and the second screw rod and the dust removal component in the air duct dust removal device according to the first embodiment of the present invention;

[0023] Figure 3 It is a schematic structural diagram of the cross-flow fan blades installed in the air duct in the air duct dust removal device according to the first embodiment of the present invention;

[0024] Figure 4 is a cross-sectional view of a dust removal component in the air duct dust removal device according to the first embodiment of the present invention from one perspective;

[0025] Figure 5 is a cross-sectional view of the dust removal component in the air duct dust removal device according to the first embodiment of the present invention from another perspective;

[0026] Figure 6 It is a schematic structural diagram of a cross-flow fan blade installed in an air duct in an air duct dust removal device according to a second embodiment of the present invention;

[0027] Figure 7 It is a schematic structural diagram of the connection between the first screw rod, the second screw rod and the third screw rod and the dust removal component in the air duct dust removal device according to the second embodiment of the present invention;

[0028] Figure 8 It is a schematic structural diagram of the connection between the first screw rod and the limit rod and the dust removal member in the air duct dust removal device according to the third embodiment of the present invention;

[0029] Fig. 9 is a cross-sectional view of an air conditioner according to a fourth embodiment of the present invention.

[0030] Description of reference numerals:

[0031] 10-air conditioner; 100-air duct dust removal device; 110-air duct; 111-accommodating groove; 112-air outlet; 120-driving motor; 130-transmission mechanism; 131-first screw rod; 132-second screw rod; 133-transmission assembly; 134-first pulley; 135-second pulley; 136-transmission belt; 137-third screw rod; 138-third pulley; 139-limiting rod; 140-dust removal member; 141-first dust removal surface; 142-second dust removal surface; 143-first brush part; 144-second brush part; 145-dust removal cavity; 146-first dust removal groove; 147-second dust removal groove; 150-crossflow fan blade; 160-dust suction pipe; 170-negative pressure mechanism; 200-housing; 300-evaporator. DETAILED DESCRIPTION

[0032] 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.

[0033] First embodiment

[0034] Please refer to Figure 1 The embodiment of the present invention provides an air duct dust removal device 100 for performing dust removal operation on the air duct 110. It can absorb dust and other dirt in the air duct 110, has a good dust removal effect, improves the cleanliness of the air conditioner, and protects the health of users.

[0035] It should be noted that the air duct dust removal device 100 is used in a wall-mounted air conditioner, which is used to be hung on a wall indoors. The wall-mounted air conditioner can blow hot or cold air indoors to adjust the indoor temperature. The air duct dust removal device 100 can absorb dust and other dirt in the air duct 110 to prevent the dirt from being blown into the room with the air flow, thereby ensuring that the air blown out by the wall-mounted air conditioner is highly clean, thereby protecting the health of the user. However, this is not limited to this. In other embodiments, the air duct dust removal device 100 can also be used in a vertical air conditioner or a central air conditioner, and the application scenario of the air duct dust removal device 100 is not specifically limited.

[0036] The air duct dust removal device 100 includes an air duct 110, a driving motor 120, a transmission mechanism 130, a dust removal member 140, a crossflow fan blade 150, a dust suction pipe 160 and a negative pressure mechanism 170. The driving motor 120 is connected to the dust removal member 140 through the transmission mechanism 130, and the driving motor 120 can output power to the transmission mechanism 130 so that the transmission mechanism 130 drives the dust removal member 140 to move. The dust removal member 140 is arranged in the air duct 110, and can be translated along the length direction of the air duct 110 under the drive of the transmission mechanism 130. The dust removal member 140 can perform dust removal operations synchronously during the translation along the length direction of the air duct 110, so as to remove dust and other dirt in the air duct 110, and ensure that the air blown out from the air duct 110 is highly clean.

[0037] It is worth noting that the crossflow blades 150 are installed in the air duct 110 and can rotate relative to the air duct 110. The crossflow blades 150 can drive the air flow to form an airflow, thereby realizing the air outlet function of the wall-mounted air conditioner. The crossflow blades 150 extend along the length direction of the air duct 110, that is, the axial direction of the crossflow blades 150 is arranged parallel to the length direction of the air duct 110. The dust removal member 140 is arranged between the crossflow blades 150 and the air duct 110. The dust removal member 140 is translated along the length direction of the air duct 110 while also being translated along the axial direction of the crossflow blades 150. The dust removal member 140 can perform dust removal operations on both the inner side wall of the air duct 110 and the crossflow blades 150, so as to enhance the dust removal effect and further improve the cleanliness of the blown airflow.

[0038] It should be noted that one end of the dust suction pipe 160 is connected to the dust removal member 140, and the other end is connected to the negative pressure mechanism 170. The dust suction pipe 160 can move with the translation of the dust removal member 140, that is, when the dust removal member 140 translates along the length direction of the air duct 110, the dust suction pipe 160 also moves along the length direction of the air duct 110. The negative pressure mechanism 170 is used to generate negative pressure, so that the air pressure at the corresponding position of the dust removal member 140 is greater than the air pressure in the negative pressure mechanism 170, so that the dirt at the corresponding position of the dust removal member 140 is sucked into the negative pressure mechanism 170 through the dust suction pipe 160, thereby realizing the dust suction function.

[0039] Please refer to Figure 2The transmission mechanism 130 includes a first screw rod 131, a second screw rod 132 and a transmission assembly 133. The driving motor 120 is in transmission connection with the first screw rod 131, and the driving motor 120 can drive the first screw rod 131 to rotate. The first screw rod 131 is installed in the air duct 110 and can rotate relative to the air duct 110. The first screw rod 131 extends along the length direction of the air duct 110, that is, the axial direction of the first screw rod 131 is arranged parallel to the length direction of the air duct 110. The second screw rod 132 is installed in the air duct 110 and can rotate relative to the air duct 110. The second screw rod 132 is arranged parallel to the first screw rod 131 and is connected to the first screw rod 131 through the transmission assembly 133. The first screw rod 131 can drive the second screw rod 132 to rotate through the transmission assembly 133, that is, the driving motor 120 can synchronously drive the first screw rod 131 and the second screw rod 132 to rotate. The dust removing piece 140 is sleeved on the outside of the first screw rod 131 and the second screw rod 132, and is threadedly matched with the first screw rod 131 and the second screw rod 132 respectively. Specifically, one end of the dust removing piece 140 is sleeved on the outside of the first screw rod 131 and is threadedly matched with the first screw rod 131. The rotation of the first screw rod 131 can drive the dust removing piece 140 to translate along the axial direction of the first screw rod 131; the other end of the dust removing piece 140 is sleeved on the outside of the second screw rod 132 and is threadedly matched with the second screw rod 132. The rotation of the second screw rod 132 can drive the dust removing piece 140 to translate along the axial direction of the second screw rod 132.

[0040] In this embodiment, the dust removing piece 140 is simultaneously sleeved on the first screw rod 131 and the second screw rod 132, and the first screw rod 131 and the second screw rod 132 rotate synchronously to drive the dust removing piece 140 to translate along the length direction of the air duct 110. At the same time, the first screw rod 131 and the second screw rod 132 can limit the dust removing piece 140 to prevent the dust removing piece 140 from rotating along the circumferential direction of the first screw rod 131 or the second screw rod 132, thereby improving the stability of the movement of the dust removing piece 140 and avoiding the dust removing piece 140 from being offset or tilted. However, this is not limited to this. In other embodiments, the transmission mechanism 130 may also not include the second screw rod 132 and the transmission assembly 133. The driving mechanism is connected to the first screw rod 131, and the driving motor 120 drives the first screw rod 131 to rotate. One end of the dust removal piece 140 is sleeved outside the first screw rod 131 and threadedly cooperates with the first screw rod 131. The rotation of the first screw rod 131 can drive the dust removal piece 140 to translate axially along the first screw rod 131, and the other end of the dust removal piece 140 is abutted against the inner wall of the air duct 110. When the dust removal piece 140 translates axially along the first screw rod 131, it can slide relative to the inner wall of the air duct 110 to prevent the dust removal piece 140 from rotating circumferentially along the first screw rod 131, and can also realize the function of translation of the dust removal piece 140 along the length direction of the air duct 110.

[0041] In this embodiment, the first screw rod 131 drives the second screw rod 132 to rotate by belt transmission, and the transmission assembly 133 includes a first pulley 134, a second pulley 135 and a transmission belt 136. The first pulley 134 is sleeved outside the first screw rod 131 and is fixedly connected to the first screw rod 131. The rotation of the first screw rod 131 can drive the first pulley 134 to rotate synchronously. The second pulley 135 is sleeved outside the second screw rod 132 and is fixedly connected to the second screw rod 132. The rotation of the second pulley 135 can drive the second screw rod 132 to rotate synchronously. The first pulley 134 is connected to the second pulley 135 by a transmission belt 136. The rotation of the first pulley 134 can drive the second pulley 135 to rotate synchronously. Specifically, when the driving motor 120 drives the first screw rod 131 to rotate, the first screw rod 131 drives the transmission belt 136 to rotate through the first pulley 134, and the transmission belt 136 drives the second screw rod 132 to rotate through the second pulley 135, so as to realize the synchronous rotation of the first screw rod 131 and the second screw rod 132, thereby ensuring that the dust removal member 140 is smoothly displaced under the action of the first screw rod 131 and the second screw rod 132. However, it is not limited to this. In other embodiments, the first screw rod 131 can also drive the second screw rod 132 to rotate by chain transmission, and the structure of the transmission assembly 133 is not specifically limited.

[0042] Please refer to Figure 3 In this embodiment, a receiving groove 111 is provided in the air duct 110, and the receiving groove 111 extends along the length direction of the air duct 110. A first screw rod 131 is disposed in the receiving groove 111 and can rotate relative to the receiving groove 111. The receiving groove 111 can shield the first screw rod 131 to prevent the first screw rod 131 from affecting the air flow. Specifically, the air duct 110 has an air outlet 112, and the first screw rod 131 is disposed at the lower side of the air outlet 112 of the air duct 110 to facilitate the design and arrangement of the installation position of the drive motor 120 and facilitate installation; the second screw rod 132 is disposed at the upper side of the air outlet 112 of the air duct 110 to make full use of the space in the air duct 110, save space, and avoid affecting the air flow of the air duct 110. Furthermore, the air duct 110 is in the shape of a volute, the first screw rod 131 is arranged at the lower part of the rear volute tongue of the volute, and the second screw rod 132 is arranged at the top of the front volute tongue of the volute, so as to avoid the first screw rod 131 and the second screw rod 132 from affecting the outlet air flow, and can further improve the stability of the movement of the dust removal component 140.

[0043] Please refer to Figure 4 and Figure 5It should be noted that the dust removal member 140 is provided with a first dust removal surface 141 and a second dust removal surface 142 opposite to each other. The first dust removal surface 141 and the second dust removal surface 142 are both arranged in an arc shape, the shape of the first dust removal surface 141 matches the shape of the peripheral surface of the crossflow fan blade 150, and the shape of the second dust removal surface 142 matches the shape of the inner wall of the air duct 110. The first dust removal surface 141 is arranged outside the crossflow fan blade 150 and is spaced apart from the crossflow fan blade 150 to prevent the dust removal member 140 from interfering with the crossflow fan blade 150 during the translation process. The dust removal member 140 can absorb dirt on the crossflow fan blade 150 through the first dust removal surface 141, thereby realizing the dust removal operation of the crossflow fan blade 150. The second dust removal surface 142 is arranged at intervals in the air duct 110, and the curvature of the second dust removal surface 142 is the same as the curvature of the inner wall of the air duct 110 to prevent the dust removal piece 140 from interfering with the inner wall of the air duct 110 during the translation process. The dust removal piece 140 can absorb dirt on the inner wall of the air duct 110 through the second dust removal surface 142, thereby achieving dust removal operation on the inner wall of the air duct 110.

[0044] In this embodiment, the first dust removal surface 141 is covered with a first brush portion 143, and the second dust removal surface 142 is covered with a second brush portion 144. The first brush portion 143 is used to clean the crossflow blades 150, and the second brush portion 144 is used to clean the inner wall of the air duct 110, so as to achieve the cleaning operation of the crossflow blades 150 and the inner wall of the air duct 110, and improve the dust removal effect. Specifically, when the dust removal member 140 is translated along the length direction of the air duct 110, the first brush portion 143 can clean the crossflow blades 150 along the axial direction of the crossflow blades 150, and the second brush portion 144 can clean the inner wall of the air duct 110 along the length direction of the air duct 110. The dirt cleaned is quickly sucked away by the dust removal member 140, so as to improve the dust removal effect on the crossflow blades 150 and the inner wall of the air duct 110.

[0045] In this embodiment, the dust removal member 140 is provided with a dust removal cavity 145, and the dust removal cavity 145 is connected to the negative pressure mechanism 170 through the dust suction pipe 160. A first dust removal groove 146 is provided on the first dust removal surface 141, and a second dust removal groove 147 is provided on the second dust removal surface 142. The first dust removal groove 146 and the second dust removal groove 147 are both connected to the dust removal cavity 145, and the first dust removal groove 146 and the second dust removal groove 147 are both used for dirt to pass through. Dirt on the crossflow fan blade 150 can enter the dust removal cavity 145 through the first dust removal groove 146, and then enter the negative pressure mechanism 170 through the dust suction pipe 160. Dirt on the inner wall of the air duct 110 can enter the dust removal cavity 145 through the second dust removal groove 147, and then enter the negative pressure mechanism 170 through the dust suction pipe 160.

[0046] In the air duct dust removal device 100 described in the embodiment of the present invention, the driving motor 120 is connected to the dust removal member 140 through the transmission mechanism 130. The dust removal member 140 is arranged in the air duct 110 and can be translated along the length direction of the air duct 110 under the drive of the transmission mechanism 130. Compared with the prior art, the air duct dust removal device 100 provided by the present invention can absorb dust and other dirt in the air duct 110, has a good dust removal effect, improves the cleanliness of the air conditioner, and protects the health of users because the dust removal member 140 is arranged in the air duct 110 and connected to the driving motor 120 through the transmission mechanism 130.

[0047] Second embodiment

[0048] Please refer to Figure 6 and Figure 7 The present invention provides an air duct dust removal device 100. Compared with the first embodiment, the difference of this embodiment lies in the different structure of the transmission component 133.

[0049] In this embodiment, the transmission assembly 133 further includes a third screw rod 137. The third screw rod 137 is installed in the air duct 110 and can rotate relative to the air duct 110. The third screw rod 137 is arranged in parallel with the first screw rod 131 and is spaced apart from the first screw rod 131, and is respectively connected to the first screw rod 131 and the second screw rod 132 through the transmission assembly 133. The first screw rod 131 can synchronously drive the second screw rod 132 and the third screw rod 137 to rotate through the transmission assembly 133, that is, the driving motor 120 can synchronously drive the first screw rod 131, the second screw rod 132 and the third screw rod 137 to rotate. The dust removing piece 140 is sleeved on the outside of the first screw rod 131, the second screw rod 132 and the third screw rod 137, and is threadedly matched with the first screw rod 131, the second screw rod 132 and the third screw rod 137 respectively. Specifically, the first end of the dust removing piece 140 is sleeved on the outside of the first screw rod 131 and is threadedly matched with the first screw rod 131. The rotation of the first screw rod 131 can drive the dust removing piece 140 to translate axially along the first screw rod 131; the second end of the dust removing piece 140 is sleeved on the outside of the second screw rod 132 and is threadedly matched with the second screw rod 132. The rotation of the second screw rod 132 can drive the dust removing piece 140 to translate axially along the second screw rod 132; the third end of the dust removing piece 140 is sleeved on the outside of the third screw rod 137 and is threadedly matched with the third screw rod 137. The rotation of the third screw rod 137 can drive the dust removing piece 140 to translate axially along the third screw rod 137.

[0050] In this embodiment, the dust removing piece 140 is simultaneously sleeved on the first screw rod 131, the second screw rod 132 and the third screw rod 137. The first screw rod 131, the second screw rod 132 and the third screw rod 137 rotate synchronously to drive the dust removing piece 140 to translate along the length direction of the air duct 110. At the same time, the first screw rod 131, the second screw rod 132 and the third screw rod 137 can limit the dust removing piece 140 to prevent the dust removing piece 140 from rotating along the circumferential direction of the first screw rod 131, the second screw rod 132 or the third screw rod 137, thereby further improving the stability of the movement of the dust removing piece 140 and avoiding the dust removing piece 140 from being offset or tilted.

[0051] In this embodiment, the first screw rod 131 drives the second screw rod 132 and the third screw rod 137 to rotate by belt transmission. The transmission assembly 133 also includes a third pulley 138. The first pulley 134 is sleeved outside the first screw rod 131 and is fixedly connected to the first screw rod 131. The rotation of the first screw rod 131 can drive the first pulley 134 to rotate synchronously. The second pulley 135 is sleeved outside the second screw rod 132 and is fixedly connected to the second screw rod 132. The rotation of the second pulley 135 can drive the second screw rod 132 to rotate synchronously. The third pulley 138 is sleeved outside the third screw rod 137 and is fixedly connected to the third screw rod 137. The rotation of the third pulley 138 can drive the third screw rod 137 to rotate synchronously. The first pulley 134 is connected to the second pulley 135 and the third pulley 138 by a transmission belt 136. The rotation of the first pulley 134 can simultaneously drive the second pulley 135 and the third pulley 138 to rotate synchronously.

[0052] Specifically, when the driving motor 120 drives the first screw rod 131 to rotate, the first screw rod 131 drives the transmission belt 136 to rotate through the first pulley 134, and the transmission belt 136 drives the second screw rod 132 to rotate through the second pulley 135, and drives the third screw rod 137 to rotate through the third pulley 138, so as to realize the synchronous rotation of the first screw rod 131, the second screw rod 132 and the third screw rod 137, thereby ensuring that the dust removal component 140 is smoothly displaced under the action of the first screw rod 131, the second screw rod 132 and the third screw rod 137.

[0053] In this embodiment, the first screw rod 131 is arranged at the lower side of the air outlet 112 of the air duct 110, so as to facilitate the design and arrangement of the installation position of the drive motor 120 and facilitate installation; the second screw rod 132 is arranged at the upper side of the air outlet 112 of the air duct 110, and the third screw rod 137 is arranged at the rear side of the air duct 110, so as to make full use of the space in the air duct 110, save the occupied space, and avoid affecting the air outlet of the air duct 110. Further, the air duct 110 is in the shape of a volute, the first screw rod 131 is arranged at the lower part of the rear volute tongue of the volute, the second screw rod 132 is arranged at the top of the front volute tongue of the volute, and the third screw rod 137 is arranged at the top of the rear volute tongue of the volute, so as to avoid the first screw rod 131, the second screw rod 132 and the third screw rod 137 from affecting the air outlet airflow, and can further improve the stability of the movement of the dust removal member 140.

[0054] The beneficial effects of the air duct dust removal device 100 described in the embodiment of the present invention are the same as those of the first embodiment, and will not be repeated here.

[0055] Third embodiment

[0056] Please refer to Figure 8 The present invention provides an air duct dust removal device 100. Compared with the first embodiment, the difference of this embodiment lies in the different structure of the transmission mechanism 130.

[0057] In this embodiment, the transmission mechanism 130 no longer includes the second screw rod 132 and the transmission assembly 133, but the transmission mechanism 130 only includes the first screw rod 131 and the limiting rod 139. Specifically, the limiting rod 139 is fixedly installed in the air duct 110 and is arranged parallel to and spaced from the first screw rod 131. The dust removal member 140 is sleeved outside the limiting rod 139 and slidably cooperates with the limiting rod 139. The limiting rod 139 can limit the dust removal member 140 so that the dust removal member 140 can only translate along the axial direction of the first screw rod 131, thereby preventing the dust removal member 140 from being offset or tilted, and improving the stability of the movement of the dust removal member 140.

[0058] In this embodiment, there are two limiting rods 139, which are arranged in parallel and spaced apart, and both are slidably matched with the dust removal member 140. Both limiting rods 139 can limit the dust removal member 140, so as to further improve the limiting effect of the dust removal member 140 and further improve the stability of the movement of the dust removal member 140. However, this is not limited to this. In other embodiments, the number of limiting rods 139 can be one or three, and the number of limiting rods 139 is not specifically limited.

[0059] It should be noted that the first screw rod 131 is arranged at the lower side of the air outlet 112 of the air duct 110, so as to facilitate the design and arrangement of the installation position of the drive motor 120 and facilitate installation; a limit rod 139 is arranged at the upper side of the air outlet 112 of the air duct 110, and another limit rod 139 is arranged at the rear side of the air duct 110, so as to make full use of the space in the air duct 110, save the occupied space, and avoid affecting the air outlet of the air duct 110. In this embodiment, the air duct 110 is in the shape of a volute, the first screw rod 131 is arranged at the lower part of the rear volute tongue of the volute, a limit rod 139 is arranged at the top of the front volute tongue of the volute, and another limit rod 139 is arranged at the top of the rear volute tongue of the volute, so as to avoid the first screw rod 131 and the two limit rods 139 from affecting the airflow, and can further improve the stability of the movement of the dust removal member 140.

[0060] In this embodiment, the first end of the dust removal member 140 is sleeved outside the first screw rod 131 and is threadedly matched with the first screw rod 131. The driving motor 120 can drive the first screw rod 131 to rotate, and the rotation of the first screw rod 131 can drive the dust removal member 140 to translate along the axial direction of the first screw rod 131; the second end of the dust removal member 140 is sleeved outside a limit rod 139 and is slidably matched with the limit rod 139; the third end of the dust removal member 140 is sleeved outside another limit rod 139 and is slidably matched with the limit rod 139. At this time, the first screw rod 131 acts as an active member to provide power to the dust removal member 140 and drive the dust removal member 140 to translate; and the two limit rods 139 only act as limit members and do not provide power to the dust removal member 140.

[0061] The beneficial effects of the air duct dust removal device 100 described in the embodiment of the present invention are the same as those of the first embodiment, and will not be repeated here.

[0062] Fourth embodiment

[0063] Please refer to Fig. 9 The present invention provides an air conditioner 10 for controlling indoor temperature. The air conditioner 10 includes a housing 200, an evaporator 300 and an air duct dust removal device 100. The basic structure and principle of the air duct dust removal device 100 and the technical effects 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 may be made to the corresponding contents in the first embodiment.

[0064] In this embodiment, the air conditioner 10 is a wall-mounted air conditioner. The air duct dust removal device 100 and the evaporator 300 are both installed in the housing 200, and the evaporator 300 is arranged outside the air duct 110. The cross-flow blades 150 can drive air to pass through the evaporator 300 and enter the air duct 110 to form an air flow to be blown indoors. In this process, the evaporator 300 can exchange heat with the air flow to cool or heat the air flow, thereby realizing the temperature regulation function of the air conditioner 10.

[0065] 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.

[0066] 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 dust removal device, characterized in that: The air duct (110) comprises an air duct (110), a driving motor (120), a transmission mechanism (130) and a dust removal member (140); the driving motor (120) is connected to the dust removal member (140) via the transmission mechanism (130); the dust removal member (140) is arranged in the air duct (110) and can be translated along the length direction of the air duct (110) under the drive of the transmission mechanism (130); The transmission mechanism (130) comprises a first screw rod (131), the driving motor (120) is in transmission connection with the first screw rod (131), the first screw rod (131) is installed in the air duct (110) and can rotate relative to the air duct (110), the first screw rod (131) extends along the length direction of the air duct (110), and the dust removal component (140) is sleeved outside the first screw rod (131) and is threadedly matched with the first screw rod (131); The air duct dust removal device further comprises a cross-flow blade (150), the cross-flow blade (150) being installed in the air duct (110) and being rotatable relative to the air duct (110), the cross-flow blade (150) extending along the length direction of the air duct (110), and the dust removal member (140) being arranged between the cross-flow blade (150) and the air duct (110); The dust removal member (140) is provided with a first dust removal surface (141) and a second dust removal surface (142) opposite to each other, the first dust removal surface (141) and the second dust removal surface (142) are both arranged in an arc shape, the first dust removal surface (141) is arranged outside the cross flow fan blade (150) and is arranged at a distance from the cross flow fan blade (150), and the second dust removal surface (142) is arranged at a distance in the air duct (110); The first dust removal surface (141) is covered with a first brush portion (143), and the second dust removal surface (142) is covered with a second brush portion (144); the first brush portion (143) is used to clean the cross-flow blades (150), and the second brush portion (144) is used to clean the inner wall of the air duct (110).

2. The air duct dust removal device according to claim 1, characterized in that: The first screw rod (131) is arranged at the lower side of the air outlet (112) of the air duct (110).

3. The air duct dust removal device according to claim 1, characterized in that: The transmission mechanism (130) further comprises a second screw rod (132) and a transmission assembly (133); the second screw rod (132) is installed in the air duct (110) and is rotatable relative to the air duct (110); the second screw rod (132) is arranged in parallel and spaced apart from the first screw rod (131) and is connected to the first screw rod (131) via the transmission assembly (133); the dust removal member (140) is sleeved outside the first screw rod (131) and the second screw rod (132) and is threadedly engaged with the first screw rod (131) and the second screw rod (132), respectively.

4. The air duct dust removal device according to claim 3, characterized in that: The second screw rod (132) is arranged on the upper side of the air outlet (112) of the air duct (110).

5. The air duct dust removal device according to claim 3, characterized in that: The transmission assembly (133) comprises a first pulley (134), a second pulley (135) and a transmission belt (136); the first pulley (134) is sleeved outside the first screw rod (131) and is fixedly connected to the first screw rod (131); the second pulley (135) is sleeved outside the second screw rod (132) and is fixedly connected to the second screw rod (132); the first pulley (134) is connected to the second pulley (135) via the transmission belt (136).

6. The air duct dust removal device according to claim 3, characterized in that: The transmission assembly (133) also includes a third screw rod (137), which is installed in the air duct (110) and can rotate relative to the air duct (110). The third screw rod (137) is arranged in parallel with the first screw rod (131) and is spaced apart from the first screw rod (131), and is respectively connected to the first screw rod (131) and the second screw rod (132) through the transmission assembly (133). The dust removal component (140) is sleeved outside the first screw rod (131), the second screw rod (132) and the third screw rod (137), and is respectively threadedly matched with the first screw rod (131), the second screw rod (132) and the third screw rod (137).

7. The air duct dust removal device according to claim 6, characterized in that: The third screw rod (137) is arranged on the rear side of the air duct (110).

8. The air duct dust removal device according to claim 1, characterized in that: The transmission mechanism (130) further comprises a limiting rod (139), wherein the limiting rod (139) is fixedly installed in the air duct (110) and is arranged in parallel and spaced relation with the first screw rod (131); the dust removal member (140) is sleeved outside the limiting rod (139) and is slidably matched with the limiting rod (139).

9. The air duct dust removal device according to claim 8, characterized in that: There are two limit rods (139), which are arranged in parallel and spaced apart, and both are slidably matched with the dust removal member (140).

10. The air duct dust removal device according to claim 1, characterized in that: The dust removal component (140) is provided with a dust removal cavity (145); the first dust removal surface (141) is provided with a first dust removal groove (146); the second dust removal surface (142) is provided with a second dust removal groove (147); the first dust removal groove (146) and the second dust removal groove (147) are both connected to the dust removal cavity (145).

11. The air duct dust removal device according to claim 1, characterized in that: The air duct dust removal device further comprises a dust suction pipe (160) and a negative pressure mechanism (170); one end of the dust suction pipe (160) is connected to the dust removal component (140), and the other end is connected to the negative pressure mechanism (170); the negative pressure mechanism (170) is used to generate negative pressure.

12. An air conditioner, characterized in that: It comprises the air duct dust removal device as described in any one of claims 1 to 11.

Images