Air purification device and air conditioner

By designing an air purification device set up by a mobile rack in the air conditioner, the problem of uneven distribution of different mass air blown by the air conditioner in the room is solved, and the uniform distribution of air quality is achieved.

CN119436288APending Publication Date: 2025-02-14GREE ELECTRIC APPLIANCE INC OF ZHUHAI
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Patent Information

Application Number
CN202411860300.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-02-14

AI Technical Summary

Technical Problem

When there are fewer sterilization devices in existing air conditioners, the air of different qualities blown out is unevenly distributed indoors, resulting in poor local air quality.

Method used

An air purification device is designed, including a purification assembly, a fixing frame and a moving frame. The purification assembly is arranged on the moving frame. The moving frame moves back and forth in the first direction on the fixing frame, so that the purification assembly can purify air at different locations. .

Benefits of technology

Through this design, the purified air circulates at different locations in the air inlet holes, so that the air of different qualities is distributed more evenly in the room, avoiding the problem of poor local air quality.

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Abstract

The invention provides an air purification device and an air conditioner, the air purification device comprises a purification assembly, the air purification device further comprises a fixed frame and a movable frame, the fixed frame is provided with an air inlet hole, the purification assembly is arranged on the movable frame, the movable frame is movably arranged on the fixed frame, and the air inlet hole is formed in the fixed frame. The movable frame can only cover a part of the air inlet hole at any position of the fixed frame, and the movable area of the movable frame on the fixed frame can cover the air inlet hole, so that the technical problem that in the prior art, when the number of sterilization devices is small, air with different masses blown out by the air conditioner is uneven in indoor distribution can be solved.
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Description

Technical Field

[0001] The present invention belongs to the technical field of air conditioners, and in particular relates to an air purification device and an air conditioner. Background Art

[0002] If the air conditioner is used for a long time, the healthy quality of the air may decline. The quality of the air blown out by the air conditioner during operation will affect the user experience. The long-term operation of the air conditioner will lead to the growth of bacteria and mold, and the accumulation of some dust, dandruff and other particles during operation provides an ideal environment for the growth of bacteria and mold, thereby reducing the air quality of the air conditioner.

[0003] In addition to the filter, the air purification device installed in the existing air conditioner also has a sterilization device. If too many sterilization devices are installed, the air inlet resistance of the air conditioner will be too large, and the wiring for the sterilization device will be too complicated; if too few sterilization devices are installed, part of the air blown out from the air conditioner will be of higher quality, and part of the air will be of lower quality; for the indoor unit with cross-flow fan blades, the air entering the indoor unit is less mixed inside the indoor unit, which results in different distributions of higher quality wind and lower quality wind in the room, which will lead to poor local air quality in the long run.

[0004] How to distribute the air of different qualities blown out by the air conditioner more evenly in the room when fewer sterilization devices are installed is a technical problem that urgently needs to be solved. Summary of the invention

[0005] Therefore, the present invention provides an air purification device and an air conditioner, which can solve the technical problem in the prior art that when fewer sterilization devices are installed, the air of different qualities blown out by the air conditioner is unevenly distributed indoors.

[0006] On the one hand, the present invention provides an air purification device, including a purification component, the air purification device also including a fixed frame and a movable frame, the fixed frame is provided with an air inlet, the purification component is arranged on the movable frame, the movable frame can be arranged on the fixed frame to move back and forth along a first direction, in the direction of air flowing through the air inlet, the projection of the movable frame can only cover a part of the air inlet, and the projection of the moving area of ​​the movable frame on the fixed frame can completely cover the air inlet.

[0007] In some embodiments,

[0008] A first driving member extending along a first direction is arranged on the end surface of the fixed frame facing the movable frame, and a second driving member is arranged on the movable frame. The second driving member is located above the first driving member, and the second driving member cooperates with the first driving member to drive the movable frame to move.

[0009] In some embodiments,

[0010] The first driving member is a rack, and the second driving member is a gear.

[0011] In some embodiments, the gear is arranged on the side wall of the movable frame, and the gear is provided with a cylindrical boss facing away from the side wall, and the cylindrical boss is coaxial with the gear; a fixing part is provided on the movable frame, and the fixing part includes a limiting hole and a fixing arm, the limiting hole is sleeved on the cylindrical boss, and the fixing arm is fixed on the side wall.

[0012] In some embodiments,

[0013] The fixed arms are provided with three, namely the first arm, the second arm and the third arm, and the three arms form a T-shape; the first arm and the second arm both extend along the first direction, the third arm extends in the direction away from the rack, and the cylindrical boss is arranged at the position where the three arms intersect.

[0014] In some embodiments, a positioning hole is provided at one end of the three arms away from the cylindrical boss, and a positioning protrusion is provided on the side wall, and the positioning protrusion is interference fit into the positioning hole.

[0015] In some embodiments,

[0016] An elastic plate is provided at one end of the first arm and the second arm away from the cylindrical boss; the plate surface of the elastic plate extends toward the rack and is parallel to the axis of the gear; and the end of the elastic plate facing the rack can extend into the tooth groove of the rack.

[0017] In some embodiments, the direction in which air enters the air inlet is the air inlet direction, a plane intersecting the air inlet direction is plane P, and the first direction is within the plane P; a roller is provided on the fixed frame, and the axis of the roller is perpendicular to the plane P; a guide groove is provided on the movable frame, and the guide groove extends along the first direction, the roller is provided in the guide groove, and the outer cylindrical surface of the roller is in contact with the bottom surface of the guide groove.

[0018] In some embodiments, a plurality of rotating bodies are disposed on both end surfaces of the roller, and when the roller rotates, at least one rotating body is located in the guide groove and contacts the side wall of the guide groove.

[0019] On the other hand, the present invention further provides an air conditioner, comprising an indoor unit and the air purification device, wherein the air purification device is arranged outside the indoor unit.

[0020] In some embodiments, the air inlet of the indoor unit is arranged at the top of the indoor unit, a filter is arranged inside the air inlet, the purification component includes a net ion group, and the air inlet hole is opposite to the air inlet.

[0021] In some embodiments, an air inlet panel is provided on the top of the indoor unit, the air inlet is provided on the air inlet panel, the air inlet is provided with a grille portion, and the grille portion includes grille holes; a buckle and a pin are provided on the fixing frame, the pin is inserted into the grille hole, and the buckle cooperates with the grille portion to be fixed.

[0022] The present invention arranges a mobile frame and arranges the purification component on the mobile frame. When the air conditioner is turned on, the purification component moves on the fixed frame following the mobile frame, so that the purification component can purify the air entering different positions of the air inlet. The purified air circulates at different positions in the air inlet, thereby making the air of different qualities entering the room more evenly distributed, avoiding the problem of poor local air quality in the room when fewer purification components are arranged. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. The drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0024] Figure 1 is an exploded schematic diagram of a purification device and an air inlet panel according to an embodiment of the present invention;

[0025] Figure 2 The embodiment of the present invention Figure 1 Schematic diagram after rotating 90° counterclockwise;

[0026] Figure 3 is a schematic diagram of the structure of a fixing frame according to an embodiment of the present invention;

[0027] Figure 4 is a schematic structural diagram of the first part of the air inlet panel according to an embodiment of the present invention;

[0028] Figure 5 is a schematic structural diagram of the second part of the air inlet panel according to an embodiment of the present invention;

[0029] Figure 6 is an exploded schematic diagram of a mobile rack and its accessories according to an embodiment of the present invention;

[0030] Figure 7 is a schematic diagram of the structure of a fixing member according to an embodiment of the present invention;

[0031] Figure 8 is a schematic diagram of a purification device according to an embodiment of the present invention being arranged on an air inlet panel;

[0032] Fig. 9 The embodiment of the present invention Figure 8 Enlarged view of point B in the middle;

[0033] Fig.10 is a schematic diagram of a mobile frame according to an embodiment of the present invention being arranged on a fixed frame;

[0034] The accompanying drawings are marked as follows:

[0035] 1. Fixed frame; 101. Air inlet hole; 102. Roller; 1021. Rolling body; 2. Moving frame; 201. Guide groove; 202. Side wall; 3. Air purification component; 4. Rack; 5. Gear; 501. Cylindrical boss; 6. Motor; 7. Baffle; 701. First arm; 702. Second arm; 703. Third arm; 8. Fixing piece; 801. Fixed arm; 802. Limiting hole; 803. Elastic plate; 804. Positioning protrusion; 805. Positioning hole; 901. Air inlet panel; 902. Grille part. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0038] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0039] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0040] See also Figure 1-10 As shown, an air purification device includes a purification component, and the air purification device also includes a fixed frame 1 and a movable frame 2, the fixed frame 1 is provided with an air inlet 101, the purification component is arranged on the movable frame 2, and the movable frame 2 can be arranged on the fixed frame 1 to move back and forth along a first direction, in the direction in which air flows through the air inlet 101, the projection of the movable frame 2 can only cover a part of the air inlet 101, and the projection of the moving area of ​​the movable frame 2 on the fixed frame 1 can completely cover the air inlet 101.

[0041] By arranging the purification component on the mobile frame 2, the mobile frame 2 can only cover part of the air inlet 101 in the direction of air flowing through the air inlet 101, which reduces the air inlet resistance and simplifies the wiring of the purification component. Since the mobile frame 2 moves on the fixed frame 1, the position where the air flowing through the mobile frame 2 enters the air inlet 101 is not fixed, and the air of different qualities blown out from the air inlet flow is more evenly distributed in the space (that is, the quality of the air flowing out from a specific position of the air inlet 101 will alternate between good and bad), thereby avoiding the phenomenon of low local quality in the space.

[0042] The moving area of ​​the mobile frame 2 on the fixed frame 1 can cover the air inlet 101, avoiding the phenomenon that the air discharged from a specific position of the air inlet 101 (the position that the mobile frame 2 cannot cover) is continuously poor, resulting in poor local air quality in the room.

[0043] Preferably, a first driving member extending along a first direction is provided on the end surface of the fixed frame 1 facing the movable frame 2, and a second driving member is provided on the movable frame 2. The second driving member is located above the first driving member, and the second driving member cooperates with the first driving member to drive the movable frame 2 to move.

[0044] The first driving member and the second driving member cooperate to drive the movable frame 2 to move along the first direction, thereby improving the stability of the movement of the movable frame 2.

[0045] Preferably, Figure 1 , Figure 3 and Figure 6 As shown, the first driving member is a rack 4 , and the second driving member is a gear 5 .

[0046] The movable frame 2 is driven to move by the cooperation of the gear 5 and the rack 4, so that the movable frame 2 can move more smoothly. Due to the meshing of the gear teeth, there will be no relative sliding between the second driving member and the first driving member, which enables the movable frame 2 to stably move to a preset distance and a preset position along the first direction according to a preset program, further improving the uniformity of air purification by the purification component, and avoiding the purification component being unable to reach some areas all the time, resulting in uneven mass distribution of the air discharged through the air inlet 101.

[0047] Furthermore, there are two racks 4, which are respectively arranged on both sides of the inlet hole, and there are two corresponding gears 5, which correspond to the racks 4; two motors 6 are arranged on the moving frame 2, one motor 6 drives one gear 5, and both motors 6 can rotate forward and reverse.

[0048] Preferably, Figure 6 , Figure 7 As shown, the gear 5 is arranged on the side wall 202 of the mobile frame 2, and the gear 5 is provided with a cylindrical boss 501 facing away from the side wall 202, and the cylindrical boss 501 is coaxial with the gear 5; a fixing member 8 is provided on the mobile frame 2, and the fixing member 8 includes a limiting hole 802 and a fixing arm 801, the limiting hole 802 is sleeved on the cylindrical boss 501, and the fixing arm 801 is fixed on the side wall 202.

[0049] By setting the fixing member 8, the limiting hole 802 on the fixing member 8 is sleeved on the cylindrical boss 501, and the fixing arm 801 of the fixing member 8 is fixed on the side wall 202, thereby improving the fixation of the gear 5, avoiding the uneven force on both ends of the gear 5 during operation, resulting in inconsistent wear of the gear 5 in its own axial direction, and finally causing the gear 5 to be unable to effectively cooperate with the rack 4 to drive the moving frame 2 to operate stably. The output shaft of the motor 6 drives the gear 5 to rotate.

[0050] Further, such as Figure 7As shown, there are three fixed arms 801, namely the first arm 701, the second arm 702 and the third arm 703, and the three arms form a T shape; the first arm 701 and the second arm 702 both extend along the first direction, the third arm 703 extends in the direction opposite to the rack 4, and the cylindrical boss 501 is arranged at the intersection of the three arms. The gear 5 is fixed by three arms (that is, three fixed arms 801), the first arm 701 and the second arm 702 support the gear 5 in the first direction, so that the gear 5 can be better supported during its movement; the third arm 703 supports the gear 5 in the direction perpendicular to the plane P, and then supports the gear 5 in the force direction when the gear 5 and the rack 4 are stationary; in this way, the gear 5 is fixed in a limited position, and the stability of the gear movement is improved.

[0051] Furthermore, a bearing is provided in the limiting hole 802 in an interference fit manner, and the inner hole of the bearing is sleeved on the cylindrical boss 501 . When the gear 5 rotates, the gear 5 and the fixing member 8 are rollingly fitted through the bearing.

[0052] Furthermore, a positioning hole 805 is provided at one end of the three arms away from the cylindrical boss 501 , and a positioning protrusion 804 is provided on the side wall 202 , and the positioning protrusion 804 is interference fit into the positioning hole 805 .

[0053] The fixed arm 801 is provided with a positioning hole 805, and the side wall 202 of the mobile frame 2 is provided with a positioning protrusion 804. The positioning hole 805 is sleeved on the positioning protrusion 804 and then locked by a screw. Through the cooperation of the positioning protrusion 804 and the positioning hole 805, the fixing member 8 is further firmly fixed on the side wall 202, thereby limiting and fixing the gear 5 more stably.

[0054] Preferably, Figure 8 As shown, an elastic plate 803 is provided at one end of the first arm and the second arm away from the cylindrical boss 501; the plate surface of the elastic plate 803 extends toward the rack 4 and is parallel to the axis of the gear 5; and the end of the elastic plate 803 facing the rack 4 can extend into the tooth groove of the rack 4.

[0055] By setting the elastic plate 803 on the end of the first arm 701 and the second arm 702 away from the limiting hole 802, there is no need to set up an additional structure protruding from the side wall 202 of the mobile frame 2 for setting the elastic plate 803, which simplifies the structure; when passing, the plate edge of the elastic plate 803 is parallel to the axis of the gear 5 and extends into the tooth groove of the rack 4, so that when the mobile frame 2 moves, the end of the elastic plate 803 facing the rack 4 can penetrate into the tooth groove of the rack 4 to clean the rack 4, and due to the elastic effect of the elastic plate 803 , the elastic plate 803 can slide out of a tooth groove under the action of deformation and pass through the tooth top. Since the elastic plate 803 stores elastic potential energy, the elastic plate 803 passes through the tooth top at one end toward the rack 4 and gradually recovers along the surface of the gear tooth and pushes and scrapes the surface of the gear tooth, thereby cleaning the wall surface of the tooth groove. Similarly, the elastic plate 803 passes through the tooth bottom at one end toward the rack 4 and gradually deforms along the surface of the gear tooth and pushes and scrapes the surface of the gear tooth; in this way, the surface of the tooth groove of the rack 4 is cleaned.

[0056] Further, such as Figure 1 , Figure 2 , Fig.10 As shown, a baffle 7 is respectively provided at two ends of the fixed frame 1 in the first direction, and the baffle 7 is used to limit the movable frame 2 to prevent the movable frame 2 from falling off the fixed frame 1.

[0057] Preferably, Figure 1 , Figure 2 , Figure 3 As shown, the direction in which air enters the air inlet hole 101 is the air inlet direction, a plane intersecting the air inlet direction is plane P, and the first direction is within the plane P; a roller 102 is provided on the fixed frame 1, and the axis of the roller 102 is perpendicular to the plane P; a guide groove 201 is provided on the movable frame 2, and the guide groove 201 extends along the first direction, the roller 102 is provided in the guide groove 201, and the outer cylindrical surface of the roller 102 contacts the bottom surface of the guide groove 201.

[0058] By setting the roller 102, the axis of the roller 102 is perpendicular to the plane P, and the guide groove 201 is set, and the roller 102 is in the guide groove 201; when the movable frame moves, the roller 102 rolls in the guide groove 201, and the outer cylindrical surface of the roller 102 contacts the bottom surface of the guide groove 201, which makes part of the sliding friction between the movable frame and the fixed member 8 become rolling friction, thereby reducing the friction between the movable frame and the fixed member 8.

[0059] Furthermore, the air inlet 101 is rectangular, the length direction of the rectangle is the first direction, and the width direction is the second direction.

[0060] Preferably, Figure 1 , Figure 2 , Fig.10 As shown, two rows of rollers 102 are arranged on the fixed frame 1 , and the two rows of rollers 102 are distributed along the first direction and are located on both sides of the movable frame 2 . A guide groove 201 is arranged on each side of the movable frame 2 .

[0061] In the plane P, the direction perpendicular to the first direction is the second direction; by setting two rows of rollers 102, the two rows of rollers 102 are set on both sides of the mobile frame 2, and the rollers 102 cooperate with the guide grooves 201 to limit the mobile frame 2 on both sides of the mobile frame 2, thereby preventing the mobile frame 2 from being displaced in the second direction, further ensuring the smooth movement of the mobile frame 2, and ensuring that the moving area of ​​the mobile frame 2 can completely cover the air inlet 101.

[0062] Furthermore, there are 12 rollers 102 in each row, and they are evenly distributed along the first direction.

[0063] Further, in the first direction, the size of the movable frame 2 is approximately 1 / 4 of the size of the air inlet hole 101 , and in the second direction, the size of the movable frame 2 is larger than the size of the air inlet hole 101 .

[0064] Preferably, Fig. 9 As shown, both end surfaces of the roller 102 are provided with a plurality of rotating bodies. When the roller 102 rotates, at least one rotating body is located in the guide groove 201 and contacts the side wall 202 of the guide groove 201 .

[0065] The roller 102 is provided with a plurality of rotating bodies on the two end faces in the axial direction thereof, and the rotating bodies are in contact with the side walls 202 of the guide groove 201, thereby limiting the position of the mobile frame 2 in the axial direction of the roller 102, further ensuring the stable operation of the mobile frame 2; in the axial direction of the roller 102, the friction between the roller 102 and the side walls 202 of the guide groove 201 is also converted into rolling friction by the rolling body 1021, thereby reducing the friction force. Furthermore, the rolling body 1021 is a ball.

[0066] The present invention further provides an air conditioner, comprising an indoor unit and the air purification device, wherein the air purification device is detachably arranged outside the indoor unit.

[0067] The above-mentioned air purification device is arranged on the air conditioner, and the purification device is arranged outside the air conditioner. On the one hand, the installation is changed, which is convenient for subsequent maintenance; on the other hand, the air purification device does not occupy the internal space of the air conditioner, simplifying the internal structure of the indoor unit.

[0068] The air blown out by the air conditioner can enter the room more evenly, making the indoor air quality more even, avoiding poor air quality in some parts of the room, and improving the functionality of the air conditioner. Since the wind resistance of the mobile frame 2 to the air is small, it is also beneficial to increase the air intake and air outlet of the air conditioner.

[0069] Preferably, the air inlet of the indoor unit is arranged at the top of the indoor unit, a filter is arranged inside the air inlet, the purification component includes a net ion group, and the air inlet hole 101 is opposite to the air inlet.

[0070] Two net ion groups are preferably arranged on the mobile frame 2. The net ion group can ionize the air through high voltage to produce a large number of positive and negative ions. These ions can actively adsorb and gather dust, bacteria, viruses and odor molecules in the air, turning them into particles of larger particle size, which are captured by the filter when they pass through the filter by gravity sedimentation or follow the air flow. At the same time, some ions can also decompose harmful gases, thereby effectively purifying the indoor air and improving the comfort and health level of the living environment. Particles of larger particle size are accumulated on the filter after being filtered by the filter. If the net ion group does not move, it will cause the filter part (the part of the filter through which the air flows through the net ion group) to continue to filter large particle size particles and block, which will cause the air to be difficult to flow through the part of the filter, which will not only reduce the filtering effect of the filter as a whole, but also cause uneven distribution of the air entering the room. The net ion group follows the mobile frame 2 to move back and forth in the first direction on the fixed frame 1, so that the large particle size particles generated by the air passing through the net ion group will not accumulate at the same position on the filter, and will not cause the filter to be locally blocked, which is conducive to more uniform air entering the room and can also improve the service life of the filter.

[0071] Preferably, Figure 2 , Figure 4 , Figure 5 As shown, an air inlet panel 901 is provided on the top of the indoor unit, the air inlet is provided on the air inlet panel 901, the air inlet is provided with a grille portion 902, and the grille portion 902 includes grille holes; a buckle and a pin are provided on the fixing frame 1, the pin is inserted into the grille hole, and the buckle cooperates with the grille portion 902 to be fixed.

[0072] Along the first direction, multiple buckles and latches are arranged. The grille portion 902 includes a first rib extending along the first direction and a second rib extending along the second direction. The grille hole is a long hole, and the length direction is the first direction; the latch can be inserted into a hole on the grille portion 902 with interference fit, and is squeezed with two adjacent first ribs, thereby limiting the fixing frame 1 in the second direction; the two latches are respectively clamped on both sides of at least one second rib, thereby limiting the fixing frame 1 in the first direction. The buckle is inserted into the grille hole with interference fit, and the fixing frame 1 is limited in the direction perpendicular to the plane P. In this way, the structure of the grille is used for fixing, and there is no need to set up an additional structure that cooperates with the bayonet, and there is no need for an additional pin hole to cooperate with the latch, so that the fixing member 8 can be limited and fixed; the stability of the fixing member 8 is improved, and the result of the grille is cleverly used to limit and fix the fixing frame 1, simplifying the fixing structure. When the fixing frame 1 needs to be disassembled, the fixing frame 1 can be moved upward with force, which is very convenient and quick. For the same grille and different air-conditioning indoor units, the same air purification device can be used, which improves the applicability of the air purification device.

[0073] When the air conditioner is working, the gear 5 and the rack 4 are in meshing state, and the ion group is turned on. Figure 1 Taking the perspective shown as an example, in the initial state, the mobile frame 2 is located at the top of the fixed frame 1, and the motor 6 rotates forward, driving the gear 5 to rotate. Since the rack 4 is fixed on the fixed frame 1, the gear 5 is subjected to the reaction force of the rack 4 and rolls downward on the rack 4, and the gear 5 drives the mobile frame 2 to move downward as a whole. When the mobile frame 2 moves to the bottom of the fixed frame 1, the motor 6 reverses, and the gear 5 is subjected to the reaction force of the rack 4 and drives the mobile frame 2 to move upward until it moves to the top of the fixed frame 1; the motor 6 rotates forward again, driving the mobile frame 2 to move downward, and this is repeated. The forward and reverse rotation of the motor 6 can be determined by the position of the mobile frame 2. When the mobile frame 2 moves upward to the first preset position, it moves downward, and when the mobile frame 2 moves downward to the second preset position, it moves upward. The position of the mobile frame 2 is detected by setting a position sensor. In another embodiment, the process of the motor 6 realizing forward rotation and reverse rotation is controlled by the number of revolutions of the motor 6. The motor 6 is a servo motor 6, and the number of revolutions of the motor 6 is N. The number of revolutions N is related to the pitch circle diameter D of the gear 5 and the length L of the rack 4, that is, N=L / πD. After rotating forward N=L / D revolutions, the moving part just reaches the estimated bottom. At this time, the motor 6 reverses N revolutions to reach the top of the fixed frame 1.

[0074] It is easy for those skilled in the art to understand that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. These improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. An air purification device, comprising a purification component, characterized in that: The air purification device further comprises a fixed frame (1) and a movable frame (2), the fixed frame (1) being provided with an air inlet (101), the purification component being arranged on the movable frame (2), the movable frame (2) being arranged on the fixed frame (1) so as to be movable back and forth along a first direction, the projection of the movable frame (2) only covering a part of the air inlet (101) in the direction in which air flows through the air inlet (101), and the projection of the movable area of ​​the movable frame (2) on the fixed frame (1) being able to completely cover the air inlet (101).

2. The air purification device according to claim 1, characterized in that: A first driving member extending along a first direction is arranged on the end surface of the fixed frame (1) facing the movable frame (2), and a second driving member is arranged on the movable frame (2). The second driving member is located above the first driving member, and the second driving member cooperates with the first driving member to drive the movable frame (2) to move.

3. The air purification device according to claim 2, characterized in that: The first driving member is a rack (4), and the second driving member is a gear (5).

4. The air purification device according to claim 3, characterized in that: The gear (5) is arranged on the side wall (202) of the movable frame (2), and the gear (5) is provided with a cylindrical boss (501) facing away from the side wall (202), and the cylindrical boss (501) is coaxial with the gear (5); a fixing member (8) is arranged on the movable frame (2), and the fixing member (8) comprises a limiting hole (802) and a fixing arm (801), the limiting hole (802) is sleeved on the cylindrical boss (501), and the fixing arm (801) is fixed on the side wall (202).

5. The air purification device according to claim 4, characterized in that: The fixed arms (801) are provided with three, namely a first arm (701), a second arm (702) and a third arm (703), and the three arms form a T-shape; the first arm (701) and the second arm (702) both extend along a first direction, the third arm (703) extends in a direction away from the rack (4), and the cylindrical boss (501) is provided at a position where the three arms intersect.

6. The air purification device according to claim 5, characterized in that: A positioning hole (805) is provided at one end of the three arms away from the cylindrical boss (501), and a positioning protrusion (804) is provided on the side wall (202), and the positioning protrusion (804) is interference fit into the positioning hole (805).

7. The air purification device according to claim 5, characterized in that: An elastic plate (803) is provided at one end of the first arm and the second arm away from the cylindrical boss (501); the plate surface of the elastic plate (803) extends toward the rack (4) and is parallel to the axis of the gear (5); and the end of the elastic plate (803) facing the rack (4) can extend into the tooth groove of the rack (4).

8. The air purification device according to any one of claims 1 to 7, characterized in that: The direction in which air enters the air inlet hole (101) is the air inlet direction, a plane intersecting the air inlet direction is a plane P, and the first direction is within the plane P; a roller (102) is provided on the fixed frame (1), and the axis of the roller (102) is perpendicular to the plane P; a guide groove (201) is provided on the movable frame (2), and the guide groove (201) extends along the first direction, the roller (102) is provided in the guide groove (201), and the outer circumferential surface of the roller (102) contacts the bottom surface of the guide groove (201).

9. The air purification device according to claim 8, characterized in that: Both end surfaces of the roller (102) are provided with a plurality of rotating bodies, and when the roller (102) rotates, at least one rotating body is located in the guide groove (201) and contacts the side wall (202) of the guide groove (201).

10. An air conditioner, characterized in that: It comprises an indoor unit and the air purification device according to any one of claims 1 to 9, wherein the air purification device is arranged outside the indoor unit.

11. The air conditioner according to claim 10, characterized in that: The air inlet of the indoor unit is arranged at the top of the indoor unit, a filter is arranged inside the air inlet, the purification component includes a net ion group, and the air inlet hole (101) is opposite to the air inlet.

12. The air conditioner according to claim 11, characterized in that: An air inlet panel (901) is arranged on the top of the indoor unit, the air inlet is arranged on the air inlet panel (901), the air inlet is provided with a grille portion (902), and the grille portion (902) includes grille holes; a buckle and a latch are arranged on the fixing frame (1), the latch is inserted into the grille hole, and the buckle is fixed in cooperation with the grille portion (902).