Driving assembly and driving method applied to reciprocating type filter screen cleaning

Abstract

The invention relates to the technical field of air purifiers, in particular to a driving assembly and a driving method.The driving assembly comprises a motor, transmission mechanisms and a suction mechanism, the suction mechanism divides the interior of a filter shell into two mounting cavities, and each input end of the suction mechanism is connected with one transmission mechanism; a cleaning module is inserted into the transmission mechanism so as to clean the filter barrel, the end part of the filter barrel is connected with the suction mechanism, the other end of the filter barrel is connected with the inner wall of the mounting cavity opposite to the suction mechanism, the transmission mechanism is connected with the motor, the motor is fixed in the filter shell, and the motor drives the transmission mechanism so as to clean the filter barrel by using the cleaning module. The phenomenon that the filtering barrel is blocked when cleaning work is executed can be avoided, and the impurity collecting effect is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air purifiers, and particularly to a driving component and a driving method applied to reciprocating filter cleaning. Background Art

[0002] With the continuous increase in the number of single-person households and the deepening of social pressure, people increasingly need the company of life and spiritual comfort, so the demand for pets is booming. As is well known, cats and dogs are the most common in daily pets, but their shedding of hair and generation of odors are also the most serious. The pet hair dander poses a non-negligible hazard to the human body, such as it may cause irritation and allergic reactions in the respiratory tract, eyes, and skin, as well as the potential risk of microbial transmission. Therefore, for pet air purifiers, the functions of comprehensively absorbing pet hair dander in the environment, automatically cleaning and collecting the hair on the filter screen, and sterilizing, removing viruses, and removing odors are crucial.

[0003] However, there are still deficiencies in the prior art. For example, a pet household air purifier with the patent number CN201810816051.X includes a machine head. A control panel is arranged on the top of the machine head. The control panel is composed of several buttons. An integrated circuit board is arranged inside the control panel. A gas sensor is arranged on the front of the machine head. The gas sensor is electrically connected to the integrated circuit board. An air outlet is arranged at the bottom of the gas sensor. A baffle is arranged at the bottom of the air outlet. A primary filter screen is laid between the baffles. The four primary filter screens enclose an inner cavity. A filter element is arranged between the inner cavity and the machine head. The filter element includes an activated carbon adsorption layer, a HEPA filter screen, and a photocatalyst mesh. This device does not set a driving component to drive the cleaning mechanism to clean the working primary filter screen, seriously hindering the cleaning effect of pet hair, dust, and dander. Summary of the Invention

[0004] The present invention provides a driving component and a driving method applied to reciprocating filter cleaning to solve the situation proposed in the background art.

[0005] To achieve the above invention purpose, the present invention provides the following technical solutions: A driving component applied to reciprocating filter cleaning includes: a motor, a transmission mechanism, and a suction mechanism. The suction mechanism divides the interior of the filter housing into two installation cavities. A transmission mechanism is connected to each input end of the suction mechanism. A cleaning module is inserted on the transmission mechanism to clean the filter barrel. One end of the filter barrel is connected to the suction mechanism, and the other end of the filter barrel is connected to the inner wall of the installation cavity opposite to the suction mechanism. The transmission mechanism is connected to the motor, and the motor is fixed inside the filter housing.

[0006] Preferably, the transmission mechanism includes: a small gear, the small gear is installed on the output end of the motor, and there is a clearance between one side of the small gear and the inner wall of the filter housing.

[0007] Preferably, the transmission mechanism further includes: a large gear ring, a sliding rib installed on the inner wall of the large gear ring is slidably connected to the end face of the input end of the suction mechanism, the sliding rib is arranged between the filter barrel and the large gear ring, and the large gear ring is meshed and connected to the other side of the small gear.

[0008] Preferably, multiple groups of hole structures are formed on the large gear ring, and two positioning holes are arranged in each group of hole structures.

[0009] Preferably, each group of the hole structures is arranged between two fixing holes, and the positioning holes and the fixing holes are inserted and matched with the end of the cleaning module.

[0010] Preferably, it further includes: a touch switch, the touch switch is arranged on the inner wall of the end of the filter housing, and the pressing end of the touch switch is in contact and cooperation with the other end of the cleaning module.

[0011] Preferably, the touch switch is electrically connected to a controller inside the filter housing, and the controller is electrically connected to the motor.

[0012] Preferably, a driving method for a driving assembly applied to reciprocating filter screen cleaning, which is applicable to the driving assembly applied to reciprocating filter screen cleaning described in any one of the above, includes the following steps:

[0013] Determine a circular motion trajectory line based on the motion trajectory when the cleaning module moves around the filter barrel;

[0014] Based on the contact position between the cleaning module and the pressing end of the touch switch, set it as the initial point N, and set the initial point N as the contact between the cleaning module and the pressing end of the touch switch;

[0015] Taking the initial point N as the starting point, sequentially set a rotation point B, a rotation point A, and a rotation point C on the circular motion trajectory line, and record the positions of the initial point N, the rotation point B, the rotation point A, and the rotation point C through the controller;

[0016] Start the motor through the controller to drive the cleaning module to perform the first-stage motion and the second-stage motion respectively according to the positions of the initial point N, the rotation point B, the rotation point A, and the rotation point C;

[0017] Repeat the first-stage motion and the second-stage motion, and end the cleaning process when the cleaning module contacts the pressing end of the touch switch again.

[0018] Preferably, the specific trajectory of the cleaning module during the first-stage motion is successively: the initial point N, the rotation point B, the rotation point A, the rotation point B, the rotation point A, the rotation point B.

[0019] Preferably, the specific trajectory of the cleaning module during the second-stage motion is successively: the rotation point B, the rotation point C, the rotation point A, the rotation point C, the rotation point A, the rotation point C.

[0020] The beneficial effects of the present invention are as follows:

[0021] The cleaning module is driven by the motor through the transmission mechanism to clean the filter barrel, which can avoid the blockage phenomenon of the filter barrel during the cleaning work and greatly improve the collection effect of sundries. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the main structure of the present invention;

[0023] Figure 2 is a sectional view of the present invention;

[0024] Figure 3 is a schematic diagram of the large gear ring structure of the present invention;

[0025] Figure 4 is a sectional view of the relative position of the cleaning module and the filter barrel of the present invention.

[0026] Wherein: motor 1, transmission mechanism 2, cleaning module 3, suction mechanism 4, filter barrel 5, filter housing 6, small gear 7, large gear ring 8, positioning hole 9, fixing hole 10, touch switch 11, sliding rib 12. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not intended to limit the present invention.

[0028] Embodiment 1: Refer to Figures 1 - 4 , a drive assembly applied to the reciprocating filter screen cleaning, including: a motor 1, a transmission mechanism 2, a cleaning module 3, a suction mechanism 4, a filter barrel 5 and a filter housing 6. The suction mechanism 4 divides the interior of the filter housing 6 into two installation cavities. A transmission mechanism 2 is connected to each input end of the suction mechanism 4, and a cleaning module 3 is inserted on the transmission mechanism 2 to clean the filter barrel 5. One end of the filter barrel 5 is connected to the suction mechanism 4, and the other end of the filter barrel 5 is connected to the inner wall of the installation cavity opposite to the suction mechanism 4. The transmission mechanism 2 is connected to the motor 1, and the motor 1 is fixed inside the filter housing 6.

[0029] The principle and beneficial effects of the above solution are:

[0030] The setting of the filtering housing 6 can protect the components inside it. The filtering housing 6 and the suction mechanism 4 cooperate with each other to collect hair, dust, and dandruff, hereinafter collectively referred to as sundries. During the collection process, the sundries will be adsorbed on the side wall of the filtering barrel 5. Also, since the suction mechanism 4 is connected to the transmission mechanism 2, the motor 1 controls the cleaning module 3 to collect the dust and hair on the filtering barrel 5 through the transmission mechanism 2. Two transmission mechanisms 2 are connected to each installation cavity, and the two transmission mechanisms 2 can cooperate with each other to guide the movement of the cleaning module 3, increasing the stability of the cleaning module 3 when moving and cleaning the filtering barrel 5. Multiple cleaning modules 3 are arranged in the filtering housing 6. During the cleaning process of a large amount of sundries, the motor 1 drives the transmission mechanism 2, and then the cleaning module 3 is used to clean the filtering barrel 5, which can avoid the phenomenon of blockage when the filtering barrel 5 performs the cleaning work, and greatly improve the collection effect of the sundries.

[0031] Embodiment Two: Refer to Figures 1 - 4 , the transmission mechanism 2 includes: a small gear 7, the small gear 7 is installed at the output end of the motor 1, and there is a clearance between one side of the small gear 7 and the inner wall of the filtering housing 6.

[0032] The principle and beneficial effects of the above solution are:

[0033] After the motor 1 starts, it drives the small gear 7 to rotate. The clearance between one side of the small gear 7 and the inner wall of the filtering housing 6 can compensate for the expansion of the filtering housing 6 caused by temperature changes, preventing the jamming of the movement of the small gear 7 caused by its expansion and damage; further, the existence of the clearance is conducive to the replenishment of lubricating oil or grease, and at the same time, it is convenient for the installation and disassembly of the small gear 7, which has great advantages in actual use; in addition, such a setting can improve the stability of the small gear 7 during operation. Further, it can be known that the vibration and noise of the components during operation can be reduced. Based on this effect, when this component is applied to the collection of sundries generated by pet breeding, it can avoid the huge noise from causing stress reactions to pets, which has important market significance for sales and use.

[0034] Embodiment Three: Refer to Figures 1 - 4 , the transmission mechanism 2 further includes: the sliding ribs 12 installed on the inner wall of the large gear ring 8 are slidably connected to the end face of the input end of the suction mechanism 4. The sliding ribs 12 are arranged between the filtering barrel 5 and the large gear ring 8, and the large gear ring 8 is meshed and connected to the other side of the small gear 7.

[0035] The principle and beneficial effects of the above solution are:

[0036] The sliding rib 12 is arranged on the inner wall of the large gear ring 8. When the small gear 7 drives the large gear ring 8 to rotate, the sliding rib 12 reduces the frictional resistance of the large gear ring 8 and improves the smoothness of the large gear ring 8 during operation. While the small gear 7 is meshed with the large gear ring 8, since the rotation speed of the small gear 7 is higher than that of the large gear ring 8, the combined operation of the gear parts actually has the effect of reducing the movement speed of the cleaning module 3. The small gear 7 is arranged away from the filter barrel 5, and due to the clearance between one side of the small gear 7 and the inner wall of the filter housing 6, the heat generated by the small gear 7 during operation is higher than that generated by the large gear ring 8 during operation. The small gear 7 is closer to the filter housing 6 relative to the large gear ring 8. Therefore, for the small gear 7, such an arrangement is more conducive to the heat dissipation of the small gear 7. At the same time, after some teeth in the large gear ring 8 receive the heat transferred from the small gear 7, there is enough time for heat dissipation during the period before the next meshing with the small gear 7, increasing the rationality of the device design.

[0037] Embodiment 4: Refer to Figures 1 - 4 , multiple groups of hole structures are formed on the large gear ring 8, and two positioning holes 9 are arranged in each group of hole structures.

[0038] Each group of the hole structures is arranged between two fixing holes 10, and the positioning holes 9 and the fixing holes 10 are in plug-in fit with the cleaning module 3.

[0039] The principle and beneficial effects of the above solution are as follows:

[0040] The large gear ring 8 is provided with positioning holes 9 and fixing holes 10, both of which can be in plug-in fit with the cleaning module 3, facilitating the installation and disassembly of the cleaning module 3 and improving the installation efficiency of the device. Since multiple groups of hole structures are arranged on the large gear ring 8, the distance between the two positioning holes 9 in each group of hole structures can be set arbitrarily. Further, it can be known that cleaning modules 3 of different sizes can be inserted into the large gear ring 8 to meet the distances between filter barrels 5 and filter housings 6 of different sizes, improving the practicability of the components. It can be seen from the mutual cooperation between the multi-hole group hole structures and the cleaning module 3 that by adjusting the distance between the cleaning module 3 and the filter housing 6, the flow efficiency of air passing through the device can be optimized. An appropriate distance can reduce air resistance, thereby improving the working efficiency of the device, and thus achieving a better cleaning effect;

[0041] At the same time, since there are various types of filter housings 6, that is, different filter housings 6 may have different thicknesses or filter hole structures, the adjustable distance allows the cleaning module 3 to adapt to various different types of filter housings 6, thereby increasing the versatility and flexibility of the device;

[0042] Adjusting the distance between the cleaning module 3 and the filter housing 6 by utilizing the pore structure can avoid its premature wear, thereby prolonging the service life of the filter housing 6, reducing the replacement frequency and maintenance cost.

[0043] Example Five: Refer to Figures 1 - 4 , it further includes: a touch switch 11, the inner wall of the end of the filter housing 6 is provided with a touch switch 11, and the pressing end of the touch switch 11 is in contact and cooperation with the other end of the cleaning module 3.

[0044] The touch switch 11 is electrically connected to the controller inside the filter housing 6, and the controller is electrically connected to the motor 1.

[0045] The cleaning module 3 includes: a cylindrical housing, a longitudinal notch, a cleaning roller, and a rubber cleaning strip. The end of the cylindrical housing is in plug-in and cooperation with the positioning hole 9 and the fixing hole 10. The other end of the cylindrical housing is in contact and cooperation with the pressing end of the touch switch 11. A cleaning roller is rotatably connected inside the cylindrical housing. One side of the cleaning roller is disposed outside the notch on the side wall of the cylindrical housing. A plurality of rubber cleaning strips are connected to the cleaning roller, and the rubber cleaning strips are in frictional cooperation with the side wall of the filter barrel 5.

[0046] The other end of the cylindrical housing is in plug-in and cooperation with the large gear ring two. The large gear ring two has the same structure as the large gear ring 8. The large gear ring two is slidably fitted with the inner wall of the installation cavity through the sliding rib two. The touch switch 11 is disposed between the filter housing 6 and the large gear ring two.

[0047] A pressure sensor is installed on the cleaning roller, and the pressure sensor is electrically connected to the controller.

[0048] The specific model of the pressure sensor is: Vishay 1000 type.

[0049] The principle and beneficial effects of the above solution are:

[0050] The controller is specifically: a microcontroller with program storage and signal input and output functions. The controller is electrically connected to the touch switch 11 and the motor 1. The touch switch 11 is in contact and cooperation with the end of the cleaning module 3. After starting the motor 1 through the controller, the motor 1 controls the movement of the cleaning module 3 through the driving mechanism 2. After the cleaning module 3 is started, its end ends the contact and cooperation with the pressing end of the touch switch 11, so that the controller can record the start of the work of the cleaning module 3. When the cleaning is over, the end of the cleaning module 3 contacts the pressing end of the touch switch 11 again, so that the controller can record the end of the work of the cleaning module 3, enhancing the monitoring of the working state of the cleaning module 3 by the components; the rubber cleaning strips clean the side wall of the filter barrel 5 to prevent blockage of sundries, and the inside of the cylindrical filter housing is used to collect sundries;

[0051] Since the other end of the cylindrical housing is inserted and mated with the second large gear ring, when the cylindrical housing in the cleaning module 3 rotates inside the filter housing 6, it has excellent longitudinal stability. Also, since the second large gear ring and the large gear ring 8 have the same structure, when the large gear ring 8 is excessively worn, the second large gear ring with good teeth can be replaced, improving the service life of the device and making full use of the components inside the device.

[0052] Embodiment Six: Refer to Figures 1 - 4 , a driving method for a driving component applied to reciprocating filter screen cleaning, applicable to the driving component applied to reciprocating filter screen cleaning described in any one of the above, including the following steps:

[0053] Determine the circular motion trajectory line based on the motion trajectory of the cleaning module 3 when it moves around the filter barrel 5;

[0054] Set the contact position between the cleaning module 3 and the pressing end of the touch switch 11 as the initial point N, and set the initial point N as the contact between the cleaning module 3 and the pressing end of the touch switch 11;

[0055] Set the rotation point B, rotation point A, and rotation point C on the circular motion trajectory line in sequence starting from the initial point N, and record the positions of the initial point N, rotation point B, rotation point A, and rotation point C through the controller;

[0056] Start the motor 1 through the controller to drive the cleaning module 3 to perform the first-stage motion and the second-stage motion respectively according to the positions of the initial point N, rotation point B, rotation point A, and rotation point C;

[0057] Repeat the first-stage motion and the second-stage motion, and end the cleaning process when the cleaning module 3 contacts the pressing end of the touch switch 11 again.

[0058] The principle and beneficial effects of the above solution are:

[0059] Set an initial point N, a rotation point B, a rotation point A, and a rotation point C on the movement trajectory line. The setting of the position of the initial point N is based on the contact position between the cleaning module 3 and the pressing end of the touch switch 11, thereby reducing the difficulty of determining the positions of the rotation point B, the rotation point A, and the rotation point C. Further, the positions of the rotation point B, the rotation point A, and the rotation point C can be determined by the size of the cleaning module 3, the number of cleaning modules 3, and the common working surface of the filter barrel 5, greatly improving the accuracy of determining each point position, and thus improving the cleaning efficiency of the cleaning module 3 when cleaning the filter barrel 5. By electrically connecting the controller to the motor 1 and the touch switch 11, the integration effect of the components is greatly improved. Set the cleaning module 3 to perform the first and second movements. Each movement is based on the circular movement trajectory line and each point position. While improving the cleaning efficiency, the accuracy of the movement of the cleaning module 3 is also improved, avoiding the phenomenon of cleaning dead corners when it cleans the filter barrel 5; the cleaning movement can be judged to start and end according to the number of times the pressing end of the touch switch 11 is pressed, greatly reducing the difficulty of controlling the start and end of the component cleaning; after the two movements are completed, the controller can compare the initial data of the pressure sensor on the cleaning module 3 with the actual data after the end of the two movements to judge the number of times the cleaning module 3 repeats the first and second movements, further improving the automation level of the device while simplifying the complexity of the component; the controller is specifically an STM32 single-chip microcomputer that can time the operation of the load, that is, the motor 1, and record the number of rotation turns.

[0060] Embodiment Seven: Refer to Figures 1 - 4 , the specific trajectory of the cleaning module 3 during the first movement is successively: the initial point N, the rotation point B, the rotation point A, the rotation point B, the rotation point A, the rotation point B.

[0061] The specific trajectory of the cleaning module 3 during the second movement is successively: the rotation point B, the rotation point C, the rotation point A, the rotation point C, the rotation point A, the rotation point C.

[0062] The principle and beneficial effects of the above solution are:

[0063] Since each point is set on the circular rail movement track and the positions of each point have been determined, the initial movement direction of the cleaning module 3 during the first-stage cleaning can be clockwise or counterclockwise. This is based on the size of the filter barrel 5 and the number of cleaning modules 3 set. When the size of the filter barrel 5 is large and the number of cleaning modules 3 is small, the starting direction of the first-stage movement of the cleaning module 3 is from the initial point N counterclockwise to the rotation point B, and the starting direction of the second-stage movement of the cleaning module 3 is from the rotation point B counterclockwise to the rotation point C. When the size of the filter barrel 5 is small and the number of cleaning modules 3 is large, the starting direction of the first-stage movement is from the initial point N clockwise to the rotation point B, and the starting direction of the second-stage movement of the cleaning module 3 is from the rotation point B clockwise to the rotation point C. This further improves the adaptability of the component to various different working conditions and the driving efficiency of the component for different numbers of driven parts.

[0064] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrated examples here.

Claims

1. A drive assembly for reciprocating filter cleaning, characterized in that: include: A suction mechanism (4) is provided, wherein the suction mechanism (4) divides the interior of the filter housing (6) into two installation chambers, each input end of the suction mechanism (4) is connected to a transmission mechanism (2), a cleaning module (3) is plugged into the transmission mechanism (2) to clean the filter barrel (5), the end of the filter barrel (5) is connected to the suction mechanism (4), and the other end of the filter barrel (5) is connected to the inner wall of the installation chamber opposite to the suction mechanism (4), the transmission mechanism (2) is connected to the motor (1), and the motor (1) is fixed inside the filter housing (6).

2. The drive assembly for reciprocating filter cleaning according to claim 1, characterized in that: The transmission mechanism (2) comprises a pinion (7), the pinion (7) being mounted on the output end of the motor (1), and a gap being arranged between one side of the pinion (7) and the inner wall of the filter housing (6).

3. The driving assembly for reciprocating filter cleaning according to claim 2, characterized in that: The transmission mechanism (2) further comprises: a large gear ring (8), a sliding rib (12) mounted on the inner wall of the large gear ring (8) being slidably connected to the end surface of the input end of the suction mechanism (4), the sliding rib (12) being arranged between the filter barrel (5) and the large gear ring (8), and the large gear ring (8) being meshingly connected to the other side of the small gear (7).

4. The driving assembly for reciprocating filter screen cleaning according to claim 3, characterized in that: The large gear ring (8) is provided with a plurality of groups of hole structures, and each group of hole structures is provided with two positioning holes (9).

5. The driving assembly for reciprocating filter cleaning according to claim 4, characterized in that: Each group of the hole structures is arranged between two fixing holes (10), and the positioning hole (9) and the fixing hole (10) are plug-fitted with the end of the cleaning module (3).

6. The driving assembly for reciprocating filter screen cleaning according to claim 5, characterized in that: Also includes: A touch switch (11) is provided on the inner wall of the installation cavity end, and the pressing end of the touch switch (11) contacts and cooperates with the other end of the cleaning module (3).

7. The driving assembly for reciprocating filter screen cleaning according to claim 6, characterized in that: The touch switch (11) is electrically connected to a controller in the filter housing (6), and the controller is electrically connected to the motor (1).

8. A driving method for a driving assembly for reciprocating filter screen cleaning, applicable to the driving assembly for reciprocating filter screen cleaning according to any one of claims 1 to 7, characterized in that: The following steps are involved: Determining a circular motion trajectory line based on the motion trajectory of the cleaning module (3) when it moves around the filter barrel (5); Based on setting the contact position between the cleaning module (3) and the pressing end of the touch switch (11) as the initial point N, the initial point N is set as the contact between the cleaning module (3) and the pressing end of the touch switch (11); Taking the initial point N as the starting point, a rotation point B, a rotation point A and a rotation point C are sequentially set on the circular motion trajectory line, and the positions of the initial point N, the rotation point B, the rotation point A and the rotation point C are recorded by the controller; The controller starts the motor (1) to drive the cleaning module (3) to perform a first stage of movement and a second stage of movement respectively according to the positions of the initial point N, the turning point B, the rotating point A and the rotating point C; The first movement and the second movement are repeated, and the cleaning process ends when the cleaning module (3) contacts the pressing end of the touch switch (11) again.

9. The driving method of the driving assembly for reciprocating filter screen cleaning according to claim 8, characterized in that: The specific trajectory of the cleaning module (3) during the first stage of movement is: initial point N, rotation point B, rotation point A, rotation point B, rotation point A, rotation point B.

10. The driving method of the driving assembly for reciprocating filter screen cleaning according to claim 9, characterized in that: The specific movement trajectory of the cleaning module (3) during the second movement is: rotation point B, rotation point C, rotation point A, rotation point C, rotation point A, rotation point C.

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