Filter screen device, indoor unit and air conditioner

Abstract

The utility model provides a filter screen device, an indoor unit and an air conditioner, relates to the technical field of air conditioners, and solves the technical problem that a filter screen is positioned at the top of the air conditioner and is inconvenient to disassemble and assemble. The filter screen device comprises a filter screen installed at the top of an indoor unit and used for filtering inlet air; the lifting mechanism is in transmission connection with the filter screen and can drive the filter screen to ascend and descend in the vertical direction; and the rotating mechanism is in transmission connection with the lifting mechanism and can drive the lifting mechanism and the filter screen to rotate to the position below the front side of the indoor unit around a shaft, so that the filter screen is conveniently disassembled and assembled. Through the lifting mechanism and the rotating mechanism, lifting and rotating around the shaft of the filter screen relative to the air conditioner are achieved, the filter screen can be lowered to a lower position below the air conditioner, and therefore a user can conveniently disassemble, assemble and clean the filter screen.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a filter device, an indoor unit and an air conditioner. Background Art

[0002] The air conditioner filter is designed to prevent dust, bacteria and other pollutants in the air from entering the evaporator and polluting the evaporator. After working for a long time, the filter will slowly accumulate dust. If it has not been cleaned, the air conditioner filter will be dirty to a certain extent, causing dust to pass through the filter and contact the evaporator. The evaporator is blocked by dust, which will affect the heat exchange effect, reduce the cooling efficiency of the air conditioner, and increase the power consumption of the air conditioner. In more serious cases, the dust may block all the mesh of the filter, directly causing the air conditioner to be unable to work normally. At the same time, the dust on the filter may also breed a large number of bacteria, which will become a source of indoor air pollution. Therefore, the air conditioner filter needs to be cleaned in time.

[0003] Currently, the filter of household wall-mounted air conditioners is generally located on the top of the air conditioner, and the installation height of the air conditioner is usually close to the roof. It is very inconvenient to disassemble and install the air conditioner filter, and the high-altitude operation increases the safety risk of users. Utility Model Content

[0004] The utility model aims to provide a filter device, an indoor unit and an air conditioner, so as to solve the technical problem in the prior art that the filter is located at the top of the air conditioner and is inconvenient to disassemble and assemble.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides a filter device for an air conditioner, comprising:

[0007] The filter is installed on the top of the indoor unit to filter the incoming air;

[0008] A lifting mechanism is connected to the filter screen in a transmission manner and can drive the filter screen to rise and fall in a vertical direction;

[0009] The rotating mechanism is transmission-connected with the lifting mechanism, and can drive the lifting mechanism and the filter to rotate around the axis to the lower front side of the indoor unit, so as to facilitate the disassembly and assembly of the filter.

[0010] The filter device provided by the utility model realizes the lifting and rotation of the filter relative to the air conditioner through the lifting mechanism and the rotating mechanism, and can lower the filter to a lower position below the air conditioner, so that the user can disassemble and clean the filter conveniently.

[0011] As a further improvement of the utility model, the lifting mechanism includes a lifting motor, a gear, and a lifting gear rod; wherein:

[0012] The gear is arranged on the output shaft of the lifting motor;

[0013] The lifting gear rod is meshingly connected with the gear;

[0014] The filter screen is installed at the end of the lifting gear rod.

[0015] As a further improvement of the present invention, the rack length of the lifting gear rod is smaller than the length of the lifting gear rod.

[0016] As a further improvement of the present invention, the end of the lifting gear rod has a U-shaped slot for clamping the connecting rod of the filter screen.

[0017] As a further improvement of the utility model, the entrance end of the slot has a guiding slope.

[0018] As a further improvement of the present invention, the lifting mechanism is installed on one side of the filter screen, so that the filter screen can be lifted and lowered in a suspended manner.

[0019] As a further improvement of the utility model, the rotating mechanism includes a rotating motor and a rotating rod; wherein:

[0020] The rotating motor is in transmission connection with the rotating rod and can drive the rotating rod to rotate around the axis;

[0021] The lifting mechanism is installed on the rotating rod.

[0022] Utilizing the principle of mechanical lever, the filter is pushed out through the lifting mechanism of the lifting motor, gear and gear rod, and the rotating motor drives the rotating mechanism of the rotating rod to lower the filter to a lower position, making it convenient for users to disassemble and clean the filter.

[0023] As a further improvement of the present invention, a U-shaped receiving groove is provided on the rotating rod; the lifting gear rod is clamped in the receiving groove and can move back and forth along the length extension direction of the receiving groove.

[0024] As a further improvement of the utility model, it also includes a U-shaped installation box in which the lifting mechanism and the rotating mechanism are covered, and after the installation box is installed in place, activity space is left at three sides thereof.

[0025] The utility model provides an indoor unit, which comprises an indoor unit body and a filter device installed on the top of the indoor unit body.

[0026] As a further improvement of the present invention, a module for detecting whether the filter is dirty or clogged is provided in the indoor unit body below the filter device.

[0027] The indoor unit provided by the utility model can lower the filter to a lower position through a mechanical lever structure, so that users do not need to perform high-risk climbing operations, reducing the difficulty of disassembly and assembly for users, and being more willing to clean the filter, thereby ensuring that the air conditioner is in a good cleaning state and has the same heat exchange effect as a new machine, thereby enhancing the user experience.

[0028] The utility model provides an air conditioner, comprising the indoor unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a structural schematic diagram of the indoor unit of the utility model;

[0031] Figure 2 It is a structural schematic diagram of the utility model with the indoor unit having the installation box removed;

[0032] Figure 3 It is a structural schematic diagram of the utility model indoor unit when the filter screen is raised;

[0033] Figure 4 It is a structural schematic diagram of the utility model indoor unit when the filter screen is raised and the installation box is removed;

[0034] Figure 5 It is a structural schematic diagram of the filter screen in the indoor unit of the utility model being moved to the disassembly position;

[0035] Figure 6 It is a structural schematic diagram of the utility model indoor unit when the filter screen is moved to the disassembly position and the installation box is removed;

[0036] Figure 7 It is a structural schematic diagram of the filter device of the utility model;

[0037] Figure 8 It is a schematic diagram of the structure of the utility model after the lifting gear rod and the filter screen are disassembled;

[0038] Fig. 9 yes Figure 8 Middle A is a partial enlarged view;

[0039] Fig.10 It is a structural schematic diagram of the lifting mechanism and the rotating structure of the filter screen device of the utility model when the rotating motor is removed;

[0040] Fig.11 It is a structural schematic diagram of the rotary rod and the lifting gear rod in the filter screen device of the utility model;

[0041] Fig.12 It is an axonometric view of the rotating mechanism in the filter screen device of the utility model;

[0042] Fig.13 It is an isometric view of the rotating mechanism in the filter screen device of the utility model from another perspective;

[0043] Fig.14 The utility model is a logic control diagram for automatic disassembly and assembly of the indoor unit filter.

[0044] In the figure: 1. Installation box; 2. Rotating motor; 3. Rotating rod; 4. Lifting motor; 5. Gear; 6. Lifting gear rod; 7. Filter; 8. Indoor unit. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0046] like Figure 7-Figure 13 As shown, the utility model provides a filter device for an air conditioner that is convenient to disassemble and assemble, which is used to solve the technical problem that the filter 7 in the prior art is inconvenient to disassemble. Specifically, the filter device includes:

[0047] A filter 7 is installed on the top of the indoor unit 8 to filter the incoming air;

[0048] The lifting mechanism is connected to the filter screen 7 in a transmission manner and can drive the filter screen 7 to rise and fall in a vertical direction;

[0049] The rotating mechanism is in transmission connection with the lifting mechanism, and can drive the lifting mechanism and the filter 7 to rotate around the axis to the lower front side of the indoor unit 8, so as to facilitate the disassembly and assembly of the filter 7.

[0050] During use, when the filter 7 needs to be removed from the top of the indoor unit 8, the lifting mechanism can be controlled to rise, driving the filter 7 to leave the air inlet at the top of the indoor unit 8, and the height above the lifting mechanism should be greater than the maximum rotation radius between the rotating shaft of the rotating mechanism and the indoor unit 8, so as to ensure that the filter 7 will not interfere with the indoor unit 8 during the rotation process. When the lifting mechanism is raised to the position, the rotating mechanism is then controlled to start, driving the lifting mechanism and the filter 7 to rotate around the rotating shaft of the rotating mechanism, bypassing the front side of the indoor unit 8 until it reaches the lower position of the front side of the indoor unit 8, so that the user can remove the filter 7 at a lower position. After the filter 7 is cleaned, the filter 7 is installed on the lifting mechanism again, and then the rotating mechanism is controlled to rotate in the opposite direction, so that the filter 7 rotates to the top position of the indoor unit 8, and then the lifting mechanism is controlled to descend, so that the filter 7 moves to the air inlet position at the top of the indoor unit 8, thereby completing the installation of the filter 7.

[0051] The filter device provided by the utility model realizes the lifting and rotation of the filter 7 relative to the air conditioner through the lifting mechanism and the rotating mechanism, and can lower the filter 7 to a lower position below the front side of the air conditioner, thereby facilitating the user to disassemble and clean the filter 7.

[0052] like Figure 7 , Fig.10 As shown, as an optional embodiment of the utility model, the lifting mechanism includes a lifting motor 4, a gear 5, and a lifting gear rod 6; wherein:

[0053] The gear 5 is arranged on the output shaft of the lifting motor 4;

[0054] The lifting gear rod 6 is a long rod-shaped structure with a rectangular cross section; a rack is provided on one side of the lifting gear rod 6, and the rack is meshed with the gear 5; when the lifting motor 4 is started, the gear 5 is driven to rotate, and the gear 5 is meshed with the rack of the lifting gear rod 6, thereby driving the lifting gear rod 6 to rise and fall in the vertical direction;

[0055] The filter screen 7 is installed at the end of the lifting gear rod 6.

[0056] In order to ensure that the filter screen 7 does not interfere with the indoor unit 8 during rotation after being lifted, in this embodiment, the lifting motor 4 is installed in the middle position of the side of the indoor unit 8, thereby reducing the length of the lifting gear rod 6 and the length of the rack on the lifting gear rod 6 while achieving lifting.

[0057] It should be noted here that the lifting motor 4 can also be a servo motor, and the lifting position of the lifting gear rod 6 can be limited by presetting parameters in advance.

[0058] In order to save costs, the rack length of the lifting gear rod 6 is smaller than the length of the lifting gear rod 6 .

[0059] In order to facilitate the disassembly and assembly of the filter screen 7 , a U-shaped slot is provided at the end of the lifting gear rod 6 for clamping the connecting rod of the filter screen 7 .

[0060] In this embodiment, a connecting rod is provided at the end of the filter 7, which is inserted into the U-shaped slot at the end of the lifting gear rod 6, and in order to prevent the filter 7 from escaping from the U-shaped slot by itself, the width of the mouth of the U-shaped slot is smaller than the diameter of the slot. It should be noted here that the connecting rod is cylindrical, so the slot is a circular slot, the diameter of the slot is matched with the diameter of the connecting rod, and the mouth is smaller than the diameter of the slot, which is also smaller than the diameter of the connecting rod. During disassembly, a certain pressing force or pulling force can be applied to install or remove the filter 7 from the slot of the lifting gear rod 6.

[0061] In order to facilitate quick pressing during installation and improve the convenience of installation, in this embodiment, the entrance end of the slot has a guiding slope. In order to further improve the fixing effect, a limiting piece is provided on the connecting rod of the filter screen 7, and the number of the limiting pieces is two, which are arranged at intervals. When the connecting rod is inserted into the slot, the two limiting pieces are just in contact with the two side walls of the lifting gear rod 6.

[0062] In order to reduce costs and simplify the structure, in this embodiment, the lifting mechanism is installed on one side of the filter screen 7 so that the filter screen 7 can be lifted and lowered in a suspended manner.

[0063] like Fig.12 and Fig.13 As shown, as an optional embodiment of the utility model, the rotating mechanism includes a rotating motor 2 and a rotating rod 3; wherein:

[0064] The rotary motor 2 is connected to the rotary rod 3 in a transmission manner, and can drive the rotary rod 3 to rotate around an axis; it should be noted that the axis in the rotation around an axis refers to the connection between the rotary motor 2 and the rotary rod 3; the rotary motor 2 is vertically arranged, and its output shaft is connected to the rotary rod 3. When the rotary motor 2 is started, it can drive the rotary rod 3 to rotate in the circumferential direction around the output shaft of the rotary motor 2. Considering that the indoor unit 8 is generally installed on a wall, and the rear side of the indoor unit 8 is a wall, it is only necessary to control the rotary motor 2 to drive the rotary rod 3 to rotate along the top and front side of the indoor unit 8.

[0065] In order to facilitate control and accurate operation, in this embodiment, the rotating motor 2 can adopt a servo motor, and the rotation angle can be preset in advance. When it is in the original state, it rotates to make the rotating rod 3 in a vertical state, that is, the filter 7 is located at the top position of the indoor unit 8. When it is in the disassembled starting state, it can be rotated to make the rotating rod 3 rotate to a diagonally downward position, that is, the filter 7 is located at the front and lower position of the indoor unit 8.

[0066] The lifting mechanism is mounted on the rotary rod 3, so that when the rotary rod 3 rotates, the filter screen 7 on the lifting mechanism and the lifting mechanism can be driven to rotate together.

[0067] The utility model utilizes the principle of mechanical lever to push out the filter screen 7 through the lifting mechanism of the lifting motor 4, the gear 5 and the lifting gear rod 6, and the rotating motor 2 drives the rotating mechanism of the rotating rod 3 to lower the filter screen 7 to a lower position, thereby making it convenient for users to disassemble and clean the filter screen 7.

[0068] like Figure 10-13 As shown, as an optional implementation of the utility model, in order to ensure stable operation of the lifting gear rod 6 when it is lifted, in this embodiment, a U-shaped receiving groove is provided on the rotating rod 3; the lifting gear rod 6 is clamped in the receiving groove and can move back and forth along the length extension direction of the receiving groove.

[0069] Through this structural setting, not only the lifting and lowering stability of the lifting gear rod 6 is achieved, but also the lifting mechanism and the rotating mechanism can be connected together, which simplifies the overall structure and reduces the cost.

[0070] like Figure 1 , Figure 3 , Figure 5 As shown, as an optional embodiment of the utility model, it also includes a U-shaped installation box 1 in which the lifting mechanism and the rotating mechanism are covered, and after the installation box 1 is installed in place, activity space is left at its three sides respectively.

[0071] It should be noted here that the movable space means that the installation box 1 does not contact the side wall of the indoor unit 8 at the front, top and bottom, respectively, and there is a gap so that there is no interference when the rotating rod 3 and the lifting gear rod 6 rotate.

[0072] like Figure 1-Figure 6 As shown, the utility model provides an indoor unit 8, comprising an indoor unit body and a filter device installed on the top of the indoor unit body.

[0073] In the indoor unit provided by the utility model, the filter 7 can be lowered to a lower position by a mechanical lever structure, so that users do not need to perform high-risk climbing operations, reducing the difficulty of disassembly and assembly for users, and can be more willing to clean the filter 7, thereby ensuring that the air conditioner is in a good clean state and has a heat exchange effect like a new machine, thereby enhancing the user experience.

[0074] Furthermore, in order to facilitate timely replacement of the filter, a module for detecting whether the filter is dirty or blocked is provided in the indoor unit body below the filter device.

[0075] Specifically, the filter blockage detection module can be an infrared detection module. When in use, the filter blockage module emits infrared light to the filter 7 and determines the filter blockage situation by the reflectivity of the infrared light. When it is detected that the filter 7 is seriously blocked, the filter blockage module displays a code on the display to remind the user to clean the filter.

[0076] The utility model provides an air conditioner, comprising the indoor unit 8 mentioned above.

[0077] Specifically, the indoor unit 8 includes an indoor unit body and a filter device, the filter device is composed of an installation box 1, a lifting mechanism, a rotating mechanism, and a filter 7; the lifting mechanism is mainly composed of a rotating rod 3, a lifting motor 4, a gear 5, and a lifting gear rod 6; the rotating mechanism is mainly composed of a rotating motor 2 and a rotating rod 3.

[0078] The air conditioner drives the rotary rod to rotate through the rotation of the motor, driving the filter to rotate from the top of the air conditioner to a lower position, so that the user can easily remove and clean the filter.

[0079] The driving principle is: Figure 1-Figure 6 , Fig.14 As shown, the rotary motor 2 is fixed on the mounting box 1, and is connected to the rotary rod 3 through the motor shaft, and can drive the rotary rod 3 to rotate. The rotary motor 2 rotates clockwise to drive the rotary rod 3 to lower its height, and rotates counterclockwise to drive the rotary rod 3 to rise. The lifting gear rod 6 cooperates with the inside of the rotary rod 3 through the accommodating groove, and the lifting motor 4 drives the gear 5 to rotate, and the gear 5 then drives the rack on the lifting gear rod 6 to make a linear motion. The lifting motor 4 rotates clockwise to drive the lifting gear rod 6 to rise, and the lifting motor 4 rotates counterclockwise to drive the lifting gear rod 6 to fall. The filter screen 7 has a connecting rod structure, and the end of the connecting rod of the filter screen 7 is connected to the end of the lifting gear rod 6 through a similar elastic buckle structure of the slot structure (a structure with a mouth smaller than the slot diameter). The end of the connecting rod of the filter screen 7 has two disc-structured limit pieces that play a role in the left and right directions, following the rise and fall of the lifting gear rod 6.

[0080] Furthermore, a filter blockage detection module is provided below the filter of the air conditioner indoor unit. The blockage module emits infrared light to the filter and determines the blockage of the filter by the reflectivity of the infrared light. When it is detected that the filter is seriously blocked, the filter blockage module displays a code on the display to remind the user to clean the filter. The user presses the cleaning button of the remote control, and the lifting motor 4 drives the gear 5 to rotate clockwise, driving the lifting gear rod 6 to rise. The lifting gear rod 6 pushes the filter 7 out of the panel body, and then the rotating motor 2 rotates clockwise to drive the rotary rod 3 downward to lower the height. At this time, the user can easily remove the filter for cleaning. After cleaning, buckle the filter back to the lifting gear rod 6, press the reset button of the remote control, and the rotating motor 2 rotates counterclockwise to drive the rotary rod 3 to rise back to the vertical position. The lifting motor 4 drives the gear 5 to rotate counterclockwise, driving the lifting gear rod 6 to descend, and the filter 7 falls back to the panel body to complete the reset.

[0081] First of all, it should be explained here that “inward” refers to the direction toward the center of the accommodating space, and “outward” refers to the direction away from the center of the accommodating space.

[0082] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0083] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0084] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0085] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0086] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0087] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A filter device, characterized in that: include: The filter is installed on the top of the indoor unit to filter the incoming air; A lifting mechanism is connected to the filter screen in a transmission manner and can drive the filter screen to rise and fall in a vertical direction; The rotating mechanism is transmission-connected with the lifting mechanism, and can drive the lifting mechanism and the filter to rotate around the axis to the bottom of the indoor unit, so as to facilitate the disassembly and assembly of the filter.

2. The filter device according to claim 1, characterized in that: The lifting mechanism includes a lifting motor, a gear, and a lifting gear rod; wherein: The gear is arranged on the output shaft of the lifting motor; The lifting gear rod is meshingly connected with the gear; The filter screen is installed at the end of the lifting gear rod.

3. The filter device according to claim 2, characterized in that: The rack length of the lifting gear rod is smaller than the length of the lifting gear rod.

4. The filter device according to claim 2, characterized in that: The end of the lifting gear rod is provided with a U-shaped slot for clamping the connecting rod of the filter screen.

5. The filter device according to claim 4, characterized in that: The entrance end of the slot is provided with a guiding slope.

6. The filter device according to claim 1, characterized in that: The lifting mechanism is installed on one side of the filter screen, so that the filter screen can be lifted and lowered in a suspended manner.

7. The filter device according to claim 2, characterized in that: The rotating mechanism comprises a rotating motor and a rotating rod; wherein: The rotating motor is in transmission connection with the rotating rod and can drive the rotating rod to rotate around the axis; The lifting mechanism is installed on the rotating rod.

8. The filter device according to claim 7, characterized in that: The rotating rod is provided with a U-shaped receiving groove; the lifting gear rod is clamped in the receiving groove and can move back and forth along the length extension direction of the receiving groove.

9. The filter device according to claim 1, characterized in that: It also includes a U-shaped installation box in which the lifting mechanism and the rotating mechanism are covered, and after the installation box is installed in place, activity spaces are respectively reserved on its three sides.

10. An indoor unit, characterized in that: The utility model comprises an indoor unit body and a filter device as claimed in any one of claims 1 to 9 installed on the top of the indoor unit body.

11. The indoor unit according to claim 10, characterized in that: A filter blockage detection module is provided in the indoor unit body below the filter device.

12. An air conditioner, characterized in that: It comprises an indoor unit as described in any one of claims 10-11.

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