WO2020253390A1

WO2020253390A1 - Self-cleaning device of air conditioner indoor unit and control method therefor

Info

Publication number: WO2020253390A1
Application number: PCT/CN2020/087499
Authority: WO
Inventors: 竺熔; 李松; 陈伟; 孙品品
Original assignee: 宁波奥克斯电气股份有限公司; 奥克斯空调股份有限公司
Priority date: 2019-06-20
Filing date: 2020-04-28
Publication date: 2020-12-24
Also published as: CN110332616B; CN110332616A

Abstract

A self-cleaning device of an air conditioner indoor unit and a control method therefor. The self-cleaning device of an air conditioner indoor unit comprises an adhesive tape cleaning assembly (6), a first rotary shaft (8), a second rotary shaft (13), and a support rotary shaft (9), a sliding groove (1), a transmission device (10), a filter screen (2) and a driving device. The adhesive tape cleaning assembly (6) is movable relative to the filter screen (2), the support rotary shaft (9) is used for supporting the filter screen (2), and the transmission device (10) is mounted between the first rotary shaft (8) and the second rotary shaft (13). The self-cleaning device of an air conditioner indoor unit uses the adhesiveness of an adhesive tape (7) to remove accumulated dust on the filter screen (2), and the adhesive tape (7) is in soft contact with the filter screen (2) and thus does not damage the filter screen; and the life span of the cleaning assembly (6) can be as long as three years, saving the trouble caused by regular replacement, making operation by a user easy.

Description

Air conditioner indoor unit self-cleaning device and control method thereof

This application claims the priority of Chinese Patent Application No. 201910534339.2 filed on June 20, 2019. The full text of the Chinese patent application is incorporated herein by reference as a part of this application.

Technical field

The embodiment of the present disclosure relates to a self-cleaning device for an indoor unit of an air conditioner and a control method thereof.

Background technique

At present, in order to solve the problem of dust accumulation in the air filter of ordinary split air conditioners, there are air conditioners on the market that use brushes, vacuum cleaner suction, or ultrasonic vibration washing methods to clean the filters.

The brush-type automatic dust removal device uses the friction between the brush and the filter to wipe the dust on the filter, which is easy to cause damage to the soft and thin filter surface. At the same time, the device wipes Dust will fall into the dust box, so the dust box needs to be cleaned regularly.

Ultrasonic vibration water washing and dust removal device has a good cleaning effect, but in the cleaning process, to ensure that the liquid level of the sink reaches a certain height, it is necessary to manually add water, which will bring constant operation to users.

Summary of the invention

In order to solve the above-mentioned problems, embodiments of the present disclosure provide a self-cleaning device for an indoor unit of an air conditioner and a control method thereof to simplify user operations, improve user experience, and ensure good cleaning and dust removal effects.

The embodiment of the present disclosure provides a self-cleaning device for an indoor unit of an air conditioner. The self-cleaning device for the indoor unit of the air conditioner includes a tape cleaning component, a first rotating shaft, a second rotating shaft, a supporting rotating shaft, a sliding groove, a transmission device, a filter screen and a driving device. The tape cleaning component and the filter screen are relatively movable and support The rotating shaft is used to support the filter screen, and the transmission device is installed between the first rotating shaft and the second rotating shaft.

The device uses the adhesiveness of the tape to remove the dust on the filter screen, and the tape contacts the filter screen without damaging the surface of the filter screen.

Further, the driving device drives the transmission device to move by driving the first rotating shaft to rotate, thereby driving the tape cleaning assembly or the filter screen to move along the chute.

Further, the tape cleaning component is arranged at the end of the filter screen.

Further, the tape cleaning assembly includes a tape rotating shaft, a pressure rotating shaft, a tape recycling shaft, and a tape. One end of the tape is wound on the tape rotating shaft, and the other end is wound on the tape recycling shaft.

Further, the adhesive tape and the filter screen are located between the pressing shaft and the supporting shaft.

Further, during the cleaning process, the adhesive tape is in close contact with the filter screen through a pressurizing shaft and a supporting shaft.

The tape and the filter are in close contact due to the squeezing action of the pressurizing shaft and the supporting shaft, which can fully remove the dust on the filter.

Further, during the cleaning process, the distance between the two axes of the pressing shaft and the supporting shaft remains unchanged.

The distance between the pressure shaft and the support shaft is constant, so that the contact pressure between the tape and the filter is kept constant.

Further, the driving device includes three motors, the motor I drives the first shaft to rotate, the motor II drives the pressure shaft in the tape cleaning assembly to approach and leave the filter in a direction perpendicular to the surface of the filter, and the motor III drives the tape recovery shaft Rotate.

Further, the driving device includes three motors, the motor I drives the first rotating shaft to rotate, the motor II drives the tape cleaning assembly to approach and leave the filter in a direction perpendicular to the surface of the filter, and the motor III drives the tape recovery shaft to rotate.

The multiple motors of the driving device respectively control multiple shafts, and the cleaning device can complete the cleaning and resetting work through the respective driving cooperation of the multiple motors.

Further, the first rotating shaft is a filter rotating shaft I, and the second rotating shaft is a filter rotating shaft II.

Further, the transmission device can drive the filter net to move up and down.

Further, the transmission device can drive the filter screen to move horizontally.

Further, the end of the filter screen away from the tape cleaning assembly is provided with a protrusion, and a travel switch S2 and a travel switch S1 are provided at the starting and ending positions of the travel of the filter.

The filter screen moves, but the tape cleaning unit does not move.

Further, the first rotation shaft is a cleaning assembly transmission rotation shaft I, and the second rotation shaft is a cleaning assembly transmission rotation shaft II.

Further, the transmission device can drive the belt cleaning assembly to move up and down.

Further, the transmission device can drive the tape cleaning assembly to move horizontally.

Further, a travel switch S2 and a travel switch S1 are provided at the start and end positions of the travel of the tape cleaning assembly.

The filter does not move, but the tape cleaning unit moves.

The embodiment of the present disclosure also provides a control method of a self-cleaning device for an indoor unit of an air conditioner, using the above-mentioned self-cleaning device for an indoor unit of an air conditioner, which specifically includes the following steps:

Step 1: After receiving the cleaning signal from the remote control or the panel, the control system starts the "cleaning sequence", and the driving device drives the filter to move relative to the tape cleaning assembly in the first direction;

Step 2: After the time T1+T2 has elapsed, the "cleaning sequence" ends, the "reset sequence" starts, and the driving device drives the filter to move in a second direction opposite to the first direction;

Step 3: After the time T1+T2 has elapsed, the filter is reset and the "reset sequence" ends.

Further, the time T1 is the time required for the driving device to drive the tape cleaning assembly to approach or leave the filter.

Further, time T2 is the time for the driving device to drive the filter screen to move.

Control the movement of the filter through time.

Further, the "cleaning sequence" includes the following steps:

Step1: Motor II rotates forward to drive the tape cleaning assembly or the pressure shaft in the tape cleaning assembly to approach and contact the filter in a direction perpendicular to the surface of the filter;

Step2: After the motor II rotates forward T1, the motor II stops rotating, and the motor I rotates forward, driving the filter screen to move in the first direction; at the same time, the motor III controls the rotation of the belt recovery shaft;

Step3: After the motor I rotates forward T2, the motor I stops rotating, and the motor III stops rotating.

The adhesive tape with dust will be recycled and rolled onto the tape recovery shaft until the new tape on the tape shaft is completely consumed before it needs to be replaced. For general daily users, the life of the cleaning component can be extended to three years, eliminating the need for regular replacement of the tape The trouble comes, easy user operation.

Further, the "reset sequence" includes the following steps:

Step1: Motor II reverses to drive the tape cleaning assembly or the pressure shaft in the tape cleaning assembly to leave the filter in a direction perpendicular to the surface of the filter;

Step2: After the motor II reverses T1, the motor II stops rotating, and the motor I reverses, driving the filter screen to move in the second direction opposite to the first direction, and the filter screen is reset;

Step3: After the motor I reverses T2, the motor I stops rotating.

Further, during the cleaning process, the tape is in close contact with the surface of the filter screen, and the linear velocity of the tape movement is consistent with the linear velocity of the filter screen.

The embodiment of the present disclosure also provides a method for controlling a self-cleaning device of an indoor unit of an air conditioner, using any one of the above-mentioned self-cleaning devices of an indoor unit of an air conditioner, which specifically includes the following steps:

Step 2: When the protrusion on the filter screen triggers the travel switch S1, the "cleaning sequence" ends and the "reset sequence" starts, and the driving device drives the filter screen to move in a second direction opposite to the first direction;

Step 3: When the bump on the filter screen triggers the travel switch S2, the "reset sequence" ends. The motor of the drive unit stops rotating.

The movement of the filter screen is controlled by the travel switch.

Further, the "cleaning sequence" includes the following steps:

Step2: After the motor II rotates forward T1, the motor II stops rotating, and the motor I rotates forward to drive the filter screen to move in the first direction; at the same time, the motor III controls the rotation of the belt recovery shaft.

Further, the "reset sequence" includes the following steps:

Step1: Motor I stops rotating, and motor III stops rotating;

Step2: Motor II reverses to drive the tape cleaning assembly or the pressure shaft in the tape cleaning assembly to leave the filter in a direction perpendicular to the surface of the filter;

Step3: After the motor II reverses T1, the motor II stops rotating, and the motor I reverses, driving the filter screen to move in the second direction opposite to the first direction, and the filter screen is reset.

If the running speed of the tape is too slow, there will be too much ash on the tape, the tape loses its viscosity, and the dust removal effect is not good. If the running speed of the tape is too fast, the tape will not be fully utilized, waste the tape and shorten the replacement time of the tape, so the tape running speed Consistent with the running speed of the filter, the cleaning effect is good and the tape is saved.

The embodiment of the present disclosure also provides a method for controlling a self-cleaning device of an indoor unit of an air conditioner. Using the above-mentioned self-cleaning device of an indoor unit of an air conditioner specifically includes the following steps:

Step 1: After receiving the cleaning signal from the remote control or the panel, the control system starts the "cleaning sequence", and the driving device drives the tape cleaning assembly to move relative to the filter in the first direction;

Step 2: After the time T1+T2 has elapsed, the "cleaning sequence" ends, the "reset sequence" starts, and the driving device drives the tape cleaning assembly to move in a second direction opposite to the first direction;

Step 3: After the time T1+T2 has elapsed, the "reset sequence" ends.

The movement of the tape cleaning assembly is controlled by time.

Further, the "cleaning sequence" includes the following steps:

Step1: Motor II rotates forward, driving the pressure shaft in the tape cleaning assembly to approach and contact the filter in a direction perpendicular to the surface of the filter;

Step2: After the motor II rotates forward T1, the motor II stops rotating, and the motor I rotates forward to drive the tape cleaning assembly to move in the first direction; at the same time, the motor III controls the rotation of the tape recovery shaft;

Further, the "reset sequence" includes the following steps:

Step1: Motor II reverses to drive the pressure shaft in the tape cleaning assembly to leave the filter in a direction perpendicular to the surface of the filter;

Step2: After the motor II reverses T1, the motor II stops rotating, and the motor I reverses, driving the tape cleaning assembly to move in the second direction opposite to the first direction, and the tape cleaning assembly is reset;

Step3: After the motor I reverses T2, the motor I stops rotating.

Further, during the cleaning process, the tape is in close contact with the surface of the filter screen, and the linear velocity of the tape movement is consistent with the linear velocity of the tape cleaning component.

The embodiment of the present disclosure also provides a method for controlling a self-cleaning device for an indoor unit of an air conditioner. Using any one of the above-mentioned self-cleaning devices for an indoor unit of an air conditioner specifically includes the following steps:

Step 2: After the tape cleaning assembly triggers the travel switch S1, the "cleaning sequence" ends and the "reset sequence" starts, and the driving device drives the tape cleaning assembly to move in a second direction opposite to the first direction;

Step 3: When the tape cleaning assembly triggers the travel switch S2, the "reset sequence" ends, and the motor in the drive device stops rotating.

The movement of the tape cleaning assembly is controlled by the travel switch.

Further, the "cleaning sequence" includes the following steps:

Step2: After the motor II rotates forward T1, the motor II stops rotating, and the motor I rotates forward to drive the tape cleaning assembly to move in the first direction; at the same time, the motor III controls the tape recovery shaft to rotate.

Further, the "reset sequence" includes the following steps:

Step1: Motor I stops rotating, and motor III stops rotating;

Step2: Motor II reverses to drive the pressure shaft in the tape cleaning assembly to leave the filter in a direction perpendicular to the surface of the filter;

Step3: After the motor II reverses T1, it stops rotating, and the motor I reverses to drive the tape cleaning assembly to move in a second direction opposite to the first direction, and the tape cleaning assembly is reset.

If the running speed of the tape is too slow, there will be too much ash on the tape, the tape loses its viscosity, and the dust removal effect is not good. If the running speed of the tape is too fast, the tape will not be fully utilized, waste the tape and shorten the replacement time of the tape, so the tape running speed It is consistent with the running speed of the tape cleaning component, the cleaning effect is good and the tape is saved.

Description of the drawings

Figure 1 is a schematic diagram of Embodiment 1 of a self-cleaning device for an indoor unit of an air conditioner;

2A and 2B are schematic diagrams of Embodiment 2 of a self-cleaning device for an indoor unit of an air conditioner;

3 is a schematic diagram of Embodiment 3 of a self-cleaning device for an indoor unit of an air conditioner;

4A and 4B are schematic diagrams of Embodiment 4 of a self-cleaning device for an indoor unit of an air conditioner;

Fig. 5 is a motor control timing diagram of the self-cleaning device of the indoor unit of the air conditioner.

Description of reference signs:

1- chute; 2- filter; 3- tape shaft; 4- pressure shaft; 5- tape recovery shaft; 6- tape cleaning component; 7- tape; 8- first shaft; 9- support shaft; 10- Transmission device; 11-fan blade; 12-heat exchanger; 13-second rotating shaft.

Detailed ways

In order to make the above objectives, features and advantages of the present disclosure more comprehensible, specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

Example 1

As shown in Figure 1, a self-cleaning device for an indoor unit of an air conditioner includes a tape cleaning assembly 6, a first rotating shaft 8, a supporting rotating shaft 9, a second rotating shaft 13, a chute 1, a transmission device 10, a filter screen 2, and a driving device , The tape cleaning assembly 6 and the filter screen 2 can move relatively, the supporting shaft 9 is used to support the filter screen 2, the transmission device 10 is installed between the first shaft 8 and the second shaft 13, and the driving device is rotated by driving the first shaft 8 to rotate The transmission device 10 is driven to move, and the transmission device 10 drives the filter screen 2 to move along the chute 1.

The tape cleaning assembly 6 includes a tape rotating shaft 3, a pressure rotating shaft 4, a tape recycling shaft 5 and a tape 7. One end of the tape 7 is wound on the tape rotating shaft 3 and the other end is wound on the tape recycling shaft 5.

The tape 7 and the filter screen are located between the pressure shaft 4 and the support shaft 9 of the tape cleaning assembly 6, and the driving device drives the tape cleaning assembly 6 or the pressure shaft 4 in the tape cleaning assembly 6 to approach the filter screen, so that the tape 7 is under pressure. The rotating shaft 4 and the supporting rotating shaft 9 are in close contact with the filter screen.

In the embodiments of the present disclosure, the adhesiveness of the adhesive tape 7 is used to remove the dust on the filter mesh 2. The adhesive tape 7 is in contact with the filter mesh 2 and will not damage the surface of the filter mesh 2.

The driving device includes three motors, the motor I drives the first rotating shaft 8 to rotate, and the motor III drives the tape recovery rotating shaft 5 to rotate.

The motor II drives the tape cleaning assembly 6 to approach and leave the filter in the direction perpendicular to the filter surface; or the motor II drives the pressurizing shaft 4 of the tape cleaning assembly 6 to approach and leave the filter in the direction perpendicular to the filter surface, two driving methods It's okay.

In this embodiment, the first rotating shaft 8 is the filter rotating shaft I, and the second rotating shaft 13 is the filter rotating shaft II.

The tape cleaning assembly 6 is arranged at the bottom of the filter screen 2, and the axis of the pressure rotating shaft 4 in the tape cleaning assembly 6 is perpendicular to the movement direction of the filter screen 2.

The filter screen 2 is installed on the transmission device 10, the first rotating shaft 8 can drive the transmission device 10 to move, and the transmission device 10 drives the filter screen to move up and down. The filter screen can bypass the first shaft 8.

During the cleaning process, the axial distance between the pressure shaft 4 and the support shaft 9 remains unchanged, and the adhesive tape 7 is in close contact with the filter screen 2 through the pressure shaft 4 and the support shaft 9.

Cleaning process:

The motor II rotates forward to drive the tape cleaning assembly 6 or the pressure shaft 4 in the tape cleaning assembly 6 to approach the filter screen, and make the tape 7 closely contact the filter screen 2 under the action of the pressure shaft 4 and the supporting shaft 9.

Then, the motor I drives the first rotating shaft 8 to rotate counterclockwise as shown in FIG. 1, so that the filter screen 2 is driven by the transmission device 10 to move between the first rotating shaft 8 and the second rotating shaft 13.

While the filter screen 2 is moving, the motor III drives the tape recovery shaft 5 to rotate, and the pressure shaft 4 and the tape shaft 3 are linked through the tape 7.

The new tape is unwound from the tape shaft 3, after contacting the filter screen 2, the dust on the filter screen 2 is glued, and the tape with the dirt is rolled into the tape recovery shaft 5.

Until the upper end of the filter screen 2 contacts the tape cleaning assembly 6, the dust removal action of the filter screen is completed.

Through the above structure, the adhesive tape 7 with dust will be recycled and wound on the tape recovery shaft 5, until the new tape on the tape shaft 3 is completely consumed, it does not need to be replaced. For general daily users, the life of the cleaning component can be extended Up to three years, save the trouble of regular replacement, easy user operation.

Filter reset:

The motor II reverses to drive the tape cleaning assembly 6 or the pressurizing shaft 4 in the tape cleaning assembly 6 to escape the filter screen, and the supporting shaft 9 remains stationary.

Then the motor I drives the first rotating shaft 8 to rotate in the clockwise direction as shown in FIG. 1, and then the transmission device 10 drives the filter screen to move upward until the filter screen 2 returns to the initial position.

The embodiment of the present disclosure also provides two control methods of the driving device of the self-cleaning device of the indoor unit of the air conditioner.

The first is the control method using a travel switch. The end of the filter screen 2 away from the tape cleaning assembly 6 is provided with a protrusion, and the start and end positions of the travel of the filter screen 2 are provided with a travel switch S2 and a travel switch S1, which specifically includes the following steps :

Step 1: After receiving the cleaning signal from the remote control or the panel, the control system starts the "cleaning sequence", and the driving device drives the filter screen 2 to move relative to the tape cleaning assembly 6 in the first direction;

Step 2: When the protrusion on the filter screen triggers the travel switch S1, the "cleaning sequence" ends and the "reset sequence" starts, and the driving device drives the filter screen 2 to move in a second direction opposite to the first direction;

Step 3: When the protrusion on the filter screen triggers the travel switch S2, the "reset sequence" ends, and the motor in the drive device stops rotating.

The cleaning sequence includes the following steps:

Step1: The motor II rotates forward to drive the tape cleaning assembly 6 or the pressure shaft 4 in the tape cleaning assembly 6 to approach and contact the filter 2 in a direction perpendicular to the surface of the filter 2;

Step2: After the motor II rotates forward T1, the motor II stops rotating, and the motor I rotates forward to drive the filter screen 2 to move downward; at the same time, the motor III controls the tape recovery shaft 5 to rotate clockwise;

Under the premise of determining the speed and the stroke, the time T1 required for the motor II to drive the belt cleaning assembly 6 to leave/close to the filter screen 2 can be calculated and set in the control system in advance;

During the cleaning process, the tape 7 is in close contact with the surface of the filter screen 2, so the linear velocity of the tape movement is consistent with the linear velocity of the filter screen 2.

If the running speed of the tape is too slow, there will be too much dust on the tape, the tape loses its viscosity, and the dust removal effect is not good. If the running speed of the tape is too fast, the tape will not be fully utilized, waste the tape and shorten the tape replacement time, so tape 7 runs The speed is the same as the running speed of the filter 2, with good cleaning effect and saving tape.

The reset sequence includes the following steps:

Step1: Motor I stops rotating, and motor III stops rotating.

Step2: The motor II reverses, and drives the tape cleaning assembly 6 or the pressure shaft 4 in the tape cleaning assembly 6 to leave the filter in a direction perpendicular to the surface of the filter 2;

Step3: After the motor II reverses T1, the motor II stops rotating, and the motor I reverses to drive the filter 2 to move upward, and the filter is reset.

The second is the control method that controls the whole process through time. First, calculate the running time of each motor according to the speed of the motor and the movement stroke of each component. The motor II drives the belt cleaning assembly 6 to leave/close to the filter for a time T1, and the motor I drives the filter to move up/down for a time T2. The movement duration of the motor III in the cleaning sequence is the same as the movement duration of the motor I.

Specifically include the following steps:

Step 2: After the time T1+T2 has elapsed, the "cleaning sequence" ends, the "reset sequence" starts, and the driving device drives the filter screen 2 to move in a second direction opposite to the first direction;

Step 3: After the time T1+T2 has elapsed, the "reset sequence" ends.

The cleaning sequence includes the following steps:

During the cleaning process, the tape 7 is in close contact with the surface of the filter screen, so the linear velocity of the tape movement is consistent with the linear velocity of the filter screen.

The reset sequence includes the following steps:

Step1: The motor II reverses to drive the tape cleaning assembly 6 or the pressure shaft 4 in the tape cleaning assembly 6 to leave the filter 2 in a direction perpendicular to the surface of the filter 2;

Step2: After the motor II reverses T1, the motor II stops rotating, the motor I reverses, drives the filter screen to move upward, and the filter screen 2 resets;

Step3: After the motor I reverses T2, the motor I stops rotating.

Example 2

2A and 2B show another embodiment. The difference between Embodiment 2 and Embodiment 1 is that the moving direction of the filter screen 2 is different. In this embodiment, the filter screen moves left and right in the horizontal direction.

Example 3

As shown in Figure 3, a self-cleaning device for an indoor unit of an air conditioner includes a tape cleaning assembly 6, a first rotating shaft 8, a supporting rotating shaft 9, a second rotating shaft 13, a chute 1, a transmission device 10, a filter screen 2, and a driving device , The tape cleaning assembly 6 and the filter screen 2 can move relatively, the supporting shaft 9 is used to support the filter screen 2, the transmission device 10 is installed between the first shaft 8 and the second shaft 13, and the driving device is rotated by driving the first shaft 8 to rotate The transmission device 10 is driven to move, and the transmission device 10 drives the belt cleaning assembly 6 to move along the chute 1.

The tape 7 and the filter screen 2 are located between the pressure shaft 4 and the support shaft 9 of the tape cleaning assembly 6. The driving device drives the pressure shaft 4 in the tape cleaning assembly 6 to approach the filter screen 2, so that the tape 7 is on the pressure shaft 4, The supporting shaft 9 is in close contact with the filter screen 2.

The driving device includes three motors. The motor I drives the first shaft 8 to rotate, the motor III drives the tape recovery shaft 5 to rotate, and the motor II drives the pressure shaft 4 of the tape cleaning assembly 6 to approach and leave the filter in a direction perpendicular to the surface of the filter 2 2.

In this embodiment, the first rotating shaft 8 is the driving shaft I of the cleaning assembly, and the second rotating shaft 13 is the driving shaft II of the cleaning assembly.

The belt cleaning assembly 6 is installed on the transmission device 10, the first rotating shaft 8 can drive the transmission device 10 to move, and the transmission device 10 drives the belt cleaning assembly 6 to move up and down along the chute 1.

During the cleaning process, the tape 7 is in close contact with the filter screen 2 through the pressurizing shaft 4 and the supporting shaft 9, and the transmission device 10 drives the tape cleaning assembly 6 to move up and down along the chute 1, and the supporting shaft 9 also moves up and down along the chute 1 to press The distance between the axes of the rotating shaft 4 and the supporting rotating shaft 9 remains unchanged.

Cleaning process:

The motor II rotates forward to drive the pressure shaft 4 in the tape cleaning assembly 6 to approach the filter screen 2 and make the tape 7 closely contact the filter screen 2 under the action of the pressure shaft 4 and the support shaft 9.

Then, the motor I drives the first rotating shaft 8 to rotate counterclockwise as shown in FIG. 3, so that the tape cleaning assembly 6 is driven by the transmission device 10 to move upward.

While the tape cleaning assembly 6 moves, the motor III drives the tape recovery shaft 5 to rotate, and the pressure shaft 4 and the tape shaft 3 are linked through the tape 7.

The new tape is unwound from the tape shaft 3, and after contacting the filter screen, stick the dust on the filter screen, and the tape with the dirt is rolled into the tape recovery shaft 5.

Until the tape cleaning component 6 touches the end of the filter screen 2, the dust removal action of the filter screen 2 is completed once.

Tape cleaning assembly reset:

The motor II reverses to drive the pressurizing shaft 4 in the tape cleaning assembly 6 to separate from the filter screen 2, and the supporting shaft 9 remains stationary.

Then, the motor I drives the first rotating shaft 8 to rotate in the clockwise direction as shown in FIG. 3, and then the transmission device 10 drives the tape cleaning assembly 6 to move downwards until the tape cleaning assembly 6 returns to the original position.

The first is a control method using a travel switch. A travel switch S2 and a travel switch S1 are provided at the start and end positions of the travel of the tape cleaning assembly 6, which specifically includes the following steps:

Step 1: Receiving the cleaning signal from the remote control or the panel, the control system starts the "cleaning sequence", and the driving device drives the tape cleaning assembly 6 to move relative to the filter 2 in the first direction;

Step 2: After the tape cleaning assembly 6 triggers the travel switch S1, the "cleaning sequence" ends and the "reset sequence" starts, and the driving device drives the tape cleaning assembly 6 to move in a second direction opposite to the first direction;

Step 3: When the tape cleaning assembly 6 triggers the travel switch S2, the "reset sequence" ends, and the motor in the drive device stops rotating.

The cleaning sequence includes the following steps:

Step1: Motor II rotates forward, driving the pressure shaft 4 in the tape cleaning assembly 6 to approach and contact the filter in the direction perpendicular to the filter surface;

Step2: After the motor II rotates forward T1, the motor II stops rotating, and the motor I rotates forward to drive the tape cleaning assembly 6 to move downward; at the same time, the motor III controls the tape recovery shaft 5 to rotate clockwise;

Under the premise of determining the speed and the stroke, the time T1 required for the motor II to drive the belt cleaning assembly 6 to leave/close to the filter can be calculated and set in the control system in advance.

During the cleaning process, the tape 7 is in close contact with the surface of the filter screen 2, so the linear velocity of the tape 7 is consistent with the linear velocity of the tape cleaning assembly 6.

If the running speed of the tape is too slow, there will be too much ash on the tape, the tape loses its viscosity, and the dust removal effect is not good. If the running speed of the tape is too fast, the tape will not be fully utilized, waste the tape and shorten the replacement time of the tape, so the tape running speed It is consistent with the running speed of the tape cleaning assembly 6 with good cleaning effect and saving tape.

The reset sequence includes the following steps:

Step1: Motor I stops rotating, and motor III stops rotating;

Step2: The motor II reverses to drive the pressure shaft 4 in the tape cleaning assembly 6 to leave the filter in the direction perpendicular to the filter surface;

Step3: After the motor II reverses T1, it stops rotating, and the motor I reverses to drive the tape cleaning assembly 6 to move downward, and the tape cleaning assembly 6 to reset.

Specifically include the following steps:

Step 2: After the time T1+T2 has elapsed, the "cleaning sequence" ends, the "reset sequence" starts, and the driving device drives the tape cleaning assembly 6 to move in a second direction opposite to the first direction;

Step 3: After the time T1+T2 has elapsed, the "reset sequence" ends.

The cleaning sequence includes the following steps:

Step1: The motor II rotates forward to drive the pressure shaft 4 in the tape cleaning assembly 6 to approach and contact the filter 2 in a direction perpendicular to the surface of the filter 2;

Step2: After the motor II rotates forward T1, the motor II stops rotating, and the motor I rotates forward, which drives the tape cleaning assembly 6 to move upward; at the same time, the motor III controls the tape recovery shaft 5 to rotate clockwise;

If the running speed of the tape is too slow, there will be too much dust on the tape, the tape loses its viscosity, and the dust removal effect is not good. If the running speed of the tape is too fast, the tape will not be fully utilized, waste the tape and shorten the tape replacement time, so tape 7 runs The speed is consistent with the running speed of the tape cleaning assembly 6, the cleaning effect is good and the tape is saved.

The reset sequence includes the following steps:

Step1: The motor II reverses to drive the pressure shaft 4 in the tape cleaning assembly 6 to leave the filter in the direction perpendicular to the filter surface;

Step2: After the motor II reverses T1, the motor II stops rotating, the motor I reverses, drives the tape cleaning assembly 6 to move downwards, and the tape cleaning assembly 6 resets;

Step3: After the motor I reverses T2, the motor I stops rotating.

Example 4

4A and 4B show another embodiment. The difference between Embodiment 4 and Embodiment 3 is only in the direction of movement of the tape cleaning assembly 6. In this embodiment, the tape cleaning assembly 6 moves in the horizontal direction.

The control sequence diagram of the three motors of the air conditioner indoor unit self-cleaning device of the above embodiment is shown in FIG. 5.

Although the disclosure is as above, the disclosure is not limited to this. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the scope defined by the claims.

Claims

A self-cleaning device for an indoor unit of an air conditioner, which includes a tape cleaning assembly (6), a first rotating shaft (8), a second rotating shaft (13), a supporting rotating shaft (9), a sliding groove (1), and a transmission device (10) ), a filter screen (2) and a driving device, the tape cleaning assembly (6) and the filter screen (2) are relatively movable, the support shaft (9) is used to support the filter screen (2), so The transmission device (10) is installed between the first rotating shaft (8) and the second rotating shaft (13).
The self-cleaning device for an indoor unit of an air conditioner according to claim 1, wherein: the driving device drives the transmission device (10) to move by driving the first rotating shaft (13) to rotate, thereby driving the tape cleaning assembly (6) Or the filter screen (2) moves along the chute (1).
The self-cleaning device for an indoor unit of an air conditioner according to claim 1, wherein the tape cleaning assembly (6) is arranged at the end of the filter screen (2).
The self-cleaning device for an indoor unit of an air conditioner according to claim 1, wherein: the tape cleaning assembly (6) comprises a tape rotating shaft (3), a pressure rotating shaft (4), a tape recovery rotating shaft (5) and a tape (7) One end of the adhesive tape (7) is wound on the adhesive tape rotating shaft (3), and the other end is wound on the adhesive tape recycling shaft (5).
The self-cleaning device for an indoor unit of an air conditioner according to claim 4, wherein: the tape (7) and the filter screen (2) are located between the pressurizing shaft (4) and the supporting shaft (9) .
The self-cleaning device for an indoor unit of an air conditioner according to claim 4, wherein: during the cleaning process, the tape (7) is in close contact with the filter screen (2) through a pressurizing shaft (4) and a supporting shaft (9) .
The self-cleaning device for an indoor unit of an air conditioner according to claim 4, wherein: during the cleaning process, the axial distance between the pressurizing shaft (4) and the supporting shaft (9) remains unchanged.
The self-cleaning device for an indoor unit of an air conditioner according to claim 4, wherein: the driving device includes three motors, the motor I drives the first shaft (8) to rotate, and the motor II drives the tape cleaning assembly (6) The pressurizing shaft (4) in the filter screen (2) approaches and leaves the filter screen (2) in a direction perpendicular to the surface of the filter screen (2), and the motor III drives the tape recovery shaft (5) to rotate.
The self-cleaning device for an indoor unit of an air conditioner according to claim 4, wherein: the driving device includes three motors, the motor I drives the first shaft (8) to rotate, and the motor II drives the tape cleaning assembly (6) Approaching and separating from the filter mesh (2) in a direction perpendicular to the surface of the filter mesh (2), the motor III drives the tape recovery shaft (5) to rotate.
The self-cleaning device for an indoor unit of an air conditioner according to any one of claims 1-9, wherein: the first rotating shaft (8) is a filter rotating shaft I, and the second rotating shaft (13) is a filter rotating shaft II.
The self-cleaning device for an indoor unit of an air conditioner according to claim 10, wherein: the transmission device (10) can drive the filter screen (2) to move up and down.
The self-cleaning device for an indoor unit of an air conditioner according to claim 10, wherein: the transmission device (10) can drive the filter screen (2) to move horizontally.
The self-cleaning device for an indoor unit of an air conditioner according to claim 10, wherein: the filter screen (2) is provided with a protrusion at one end away from the tape cleaning assembly (6), and the starting point of the stroke of the filter screen (2) A travel switch S2 and a travel switch S1 are arranged at the end position.
The self-cleaning device for an indoor unit of an air conditioner according to any one of claims 1-8, wherein: the first shaft (8) is a cleaning assembly drive shaft I, and the second shaft (13) is a cleaning assembly drive shaft II .
The self-cleaning device for an indoor unit of an air conditioner according to claim 14, wherein: the transmission device (10) can drive the tape cleaning assembly (6) to move up and down.
The self-cleaning device for an indoor unit of an air conditioner according to claim 14, wherein: the transmission device (10) can drive the tape cleaning assembly (6) to move horizontally.
The self-cleaning device for an indoor unit of an air conditioner according to claim 14, wherein: a travel switch S2 and a travel switch S1 are provided at the start and end positions of the stroke of the tape cleaning assembly (6).
A control method of a self-cleaning device for an indoor unit of an air conditioner, wherein: using the self-cleaning device for an indoor unit of an air conditioner according to any one of claims 1-12 includes the following steps:

Step 1: Receiving the cleaning signal from the remote control or the panel, the control system starts the "cleaning sequence", and the driving device drives the filter screen (2) to move relative to the tape cleaning assembly (6) in the first direction;

Step 2: After the time T1+T2 has elapsed, the "cleaning sequence" ends, the "reset sequence" starts, and the driving device drives the filter screen (2) to move in a second direction opposite to the first direction;

Step 3: After the time T1+T2 has elapsed, the filter (2) is reset, and the "reset sequence" ends.
The control method of the self-cleaning device of an indoor unit of an air conditioner according to claim 18, wherein: the time T1 is the time required for the drive device to drive the tape cleaning assembly (6) to approach or leave the filter (2).
The control method of the self-cleaning device of the indoor unit of the air conditioner according to claim 18, wherein: the time T2 is the time for the driving device to drive the filter (2) to move.
The control method of a self-cleaning device for an indoor unit of an air conditioner according to claim 18, wherein: the "cleaning sequence" includes the following steps:

Step1: Motor II rotates forward to drive the tape cleaning assembly (6) or the pressure shaft (4) in the tape cleaning assembly (6) to approach and touch the filter (2) in a direction perpendicular to the surface of the filter (2);

Step2: After the motor II rotates forward T1, the motor II stops rotating, and the motor I rotates forward, driving the filter screen (2) to move in the first direction; at the same time, the motor III controls the rotation of the tape recovery shaft (5);

Step3: After the motor I rotates forward T2, the motor I stops rotating, and the motor III stops rotating.
The method for controlling a self-cleaning device of an indoor unit of an air conditioner according to claim 18, wherein: the "reset sequence" includes the following steps:

Step1: The motor II reverses, and drives the tape cleaning assembly (6) or the pressure shaft (4) in the tape cleaning assembly (6) to leave the filter (2) in a direction perpendicular to the surface of the filter (2);

Step2: After the motor II reverses T1, the motor II stops rotating, and the motor I reverses, driving the filter screen (2) to move in the second direction opposite to the first direction, and the filter screen (2) is reset;

Step3: After the motor I reverses T2, the motor I stops rotating.
The control method of the self-cleaning device for an indoor unit of an air conditioner according to claim 18, wherein: during the cleaning process, the tape (7) is in close contact with the surface of the filter screen (2), and the linear velocity of the tape (7) moves with the filter screen (2) ) The linear velocity of motion is consistent.
A control method of a self-cleaning device for an indoor unit of an air conditioner, wherein: using the self-cleaning device for an indoor unit of an air conditioner according to any one of claims 1-13 includes the following steps:

Step 1: Receiving the cleaning signal from the remote control or the panel, the control system starts the "cleaning sequence", and the driving device drives the filter screen (2) to move relative to the tape cleaning assembly (6) in the first direction;

Step 2: When the protrusion on the filter screen (2) triggers the travel switch S1, the "cleaning sequence" ends and the "reset sequence" starts, and the driving device drives the filter screen (2) to move in a second direction opposite to the first direction ；

Step 3: When the protrusion on the filter screen (2) triggers the travel switch S2, the "reset sequence" ends. The motor of the drive unit stops rotating.
The control method of a self-cleaning device for an indoor unit of an air conditioner according to claim 24, wherein: the "cleaning sequence" includes the following steps:

Step1: Motor II rotates forward and drives the tape cleaning assembly (6) or the pressure shaft (4) in the tape cleaning assembly (6) to approach and contact the filter (2) in a direction perpendicular to the surface of the filter (2);

Step2: After the motor II rotates forward T1, the motor II stops rotating, and the motor I rotates forward to drive the filter screen (2) to move in the first direction; at the same time, the motor III controls the rotation of the tape recovery shaft (5).
The control method of the self-cleaning device for an indoor unit of an air conditioner according to claim 24, wherein: the "reset sequence" includes the following steps:

Step1: Motor I stops rotating, and motor III stops rotating;

Step2: The motor II reverses to drive the tape cleaning assembly (6) or the pressure shaft (4) in the tape cleaning assembly (6) to leave the filter (2) in a direction perpendicular to the surface of the filter (2);

Step3: After the motor II reverses T1, the motor II stops rotating, and the motor I reverses, driving the filter screen (2) to move in the second direction opposite to the first direction, and the filter screen (2) is reset.
The control method of the self-cleaning device of an indoor unit of an air conditioner according to claim 25 or 26, wherein: time T1 is the time required for the drive device to drive the tape cleaning assembly (6) to approach or leave the filter (2).
The control method of a self-cleaning device for an indoor unit of an air conditioner according to claim 24, wherein: during the cleaning process, the tape (7) is in close contact with the surface of the filter (2), and the linear velocity of the tape (7) moves with the filter (2). ) The linear velocity of motion is consistent.
A control method of a self-cleaning device for an indoor unit of an air conditioner, wherein: using the self-cleaning device for an indoor unit of an air conditioner according to any one of claims 1-9 and 14-16 includes the following steps:

Step 1: After receiving the cleaning signal from the remote control or the panel, the control system starts the "cleaning sequence", and the driving device drives the tape cleaning assembly (6) to move relative to the filter screen (2) in the first direction;

Step 2: After the time T1+T2 has elapsed, the "cleaning sequence" ends, the "reset sequence" starts, and the driving device drives the tape cleaning assembly (6) to move in a second direction opposite to the first direction;

Step 3: After the time T1+T2 has elapsed, the "reset sequence" ends.
The control method of the self-cleaning device of an indoor unit of an air conditioner according to claim 29, wherein the time T1 is the time required for the drive device to drive the tape cleaning assembly (6) to approach or leave the filter (2).
The control method of a self-cleaning device for an indoor unit of an air conditioner according to claim 29, wherein: the time T2 is the time for the driving device to drive the filter (2) to move.
The control method of a self-cleaning device for an indoor unit of an air conditioner according to claim 29, wherein: the "cleaning sequence" includes the following steps:

Step1: Motor II rotates forward, driving the pressure shaft (4) in the tape cleaning assembly (6) to approach and touch the filter (2) along the direction perpendicular to the surface of the filter (2);

Step2: After the motor II rotates forward T1, the motor II stops rotating, and the motor I rotates forward, driving the tape cleaning assembly (6) to move in the first direction; at the same time, the motor III controls the tape recovery shaft (5) to rotate;

Step3: After the motor I rotates forward T2, the motor I stops rotating, and the motor III stops rotating.
The control method of a self-cleaning device for an indoor unit of an air conditioner according to claim 29, wherein: the "reset sequence" includes the following steps:

Step1: The motor II reverses to drive the pressure shaft (4) in the tape cleaning assembly (6) to leave the filter (2) in a direction perpendicular to the surface of the filter (2);

Step2: After the motor II reverses T1, the motor II stops rotating, and the motor I reverses, driving the tape cleaning assembly (6) to move in the second direction opposite to the first direction, and the tape cleaning assembly (6) is reset;

Step3: After the motor I reverses T2, the motor I stops rotating.
The control method of a self-cleaning device for an indoor unit of an air conditioner according to claim 29, wherein: during the cleaning process, the tape (7) is in close contact with the surface of the filter screen (2), and the linear velocity of the tape (7) moves with the tape cleaning assembly ( 6) The linear motion speed is consistent.
A control method of a self-cleaning device for an indoor unit of an air conditioner, wherein: using the self-cleaning device for an indoor unit of an air conditioner according to any one of claims 1-9 and 14-17 includes the following steps:

Step 1: After receiving the cleaning signal from the remote control or the panel, the control system starts the "cleaning sequence", and the driving device drives the tape cleaning assembly (6) to move relative to the filter screen (2) in the first direction;

Step 2: After the tape cleaning assembly (6) triggers the travel switch S1, the "cleaning sequence" ends and the "reset sequence" starts, and the driving device drives the tape cleaning assembly (6) to move in a second direction opposite to the first direction;

Step 3: When the tape cleaning assembly (6) triggers the travel switch S2, the "reset sequence" ends, and the motor in the drive device stops rotating.
The control method of a self-cleaning device for an indoor unit of an air conditioner according to claim 35, wherein: the "cleaning sequence" includes the following steps:

Step1: Motor II rotates forward, driving the pressure shaft (4) in the tape cleaning assembly (6) to approach and touch the filter (2) along the direction perpendicular to the surface of the filter (2);

Step2: After the motor II rotates forward T1, the motor II stops rotating, and the motor I rotates forward, driving the tape cleaning assembly (6) to move in the first direction; at the same time, the motor III controls the tape recovery shaft (5) to rotate.
The control method of a self-cleaning device for an indoor unit of an air conditioner according to claim 35, wherein: the "reset sequence" includes the following steps:

Step1: Motor I stops rotating, and motor III stops rotating;

Step2: The motor II reverses to drive the pressure shaft (4) in the tape cleaning assembly (6) to leave the filter (2) in a direction perpendicular to the surface of the filter (2);

Step3: After the motor II reverses T1, it stops rotating, and the motor I reverses to drive the tape cleaning assembly (6) to move in a second direction opposite to the first direction, and the tape cleaning assembly (6) is reset.
The control method of the self-cleaning device of an indoor unit of an air conditioner according to claim 36 or 37, wherein: the time T1 is the time required for the drive device to drive the tape cleaning assembly (6) to approach or leave the filter (2).
The control method of a self-cleaning device for an indoor unit of an air conditioner according to claim 35, wherein: during the cleaning process, the tape (7) is in close contact with the surface of the filter screen (2), and the linear velocity of the tape (7) moves with the tape cleaning assembly ( 6) The linear motion speed is consistent.