Air filter screen for outdoor unit of air conditioner

Abstract

The utility model discloses an air filter screen for an outdoor unit of an air conditioner in the field of air conditioning equipment, which comprises a filter screen frame with an L-shaped cross section and a plurality of filter screens uniformly distributed on the filter screen frame, and the filter screen frame is attached to aluminum foil fins on the back surface of the outdoor unit of the air conditioner and the side surface with a hollow structure. Left and right ends of the filter screen frame are fixedly connected with a side plate and a front plate of the air conditioner outdoor unit respectively. According to the air conditioner outdoor unit, the filter screen frames are arranged on the aluminum foil fins on the back face of the air conditioner outdoor unit and the hollowed-out structures on the side faces, dust, batting, fallen leaves and other sundries can be prevented from being adsorbed into the aluminum foil fins, the ventilation effect of the aluminum foil fins and the heat dissipation effect of a condenser are guaranteed, and the whole filter screen frames are simple in structure, convenient to install and low in cost. And effective physical protection can be formed for aluminum foil fins of the condenser.

Description

Technical Field

[0001] The utility model relates to the field of air-conditioning equipment, in particular to an air filter screen used for an outdoor unit of an air-conditioning unit. Background Art

[0002] The condenser of the air conditioner outdoor unit is one of the key components in the air conditioning system and one of the cores for achieving heat exchange between the refrigerant and the outside world. When the refrigerant flows in the copper tube, it will dissipate heat to the aluminum foil fins of the condenser. When the axial fan rotates, the air quickly passes through the aluminum foil fins and takes away the heat, thereby achieving heat exchange. In order to ensure that the refrigerant can effectively exchange heat with the outside world, the condenser of the outdoor unit needs to be kept clean and unobstructed, but the installation environment of the air conditioner outdoor unit is complex and diverse, and dust, lint and fallen leaves may be adsorbed on the aluminum foil fins of the condenser, affecting the heat dissipation effect.

[0003] In order to reduce the impact of external dust and lint on the heat dissipation effect of the condenser, some air conditioner manufacturers will use the outdoor fan reverse dust removal technology to clean the air conditioner outdoor unit. Reverse dust removal has a certain cleaning effect on relatively fine dust particles, but the cleaning effect on larger dust and lint is not ideal. Utility Model Content

[0004] In order to overcome the shortcomings of the existing air-conditioning outdoor unit that foreign objects are easily adsorbed onto the aluminum foil fins of the condenser, the technical problem to be solved by the utility model is to provide an air filter that can filter and protect the aluminum foil fins of the condenser of the air-conditioning outdoor unit.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] An air filter for an outdoor unit of an air conditioner comprises a filter frame with an L-shaped cross section and a plurality of filters evenly distributed on the filter frame, wherein the filter frame is abutted against an aluminum foil fin on the back of the outdoor unit of the air conditioner and a side with a hollow structure, and the left and right ends of the filter frame are respectively fixedly connected to a side panel and a front panel of the outdoor unit of the air conditioner.

[0007] Furthermore, the filter frame and the filter are an integral injection-molded structure of PP material.

[0008] Furthermore, at least two elastic buckles are respectively provided on the left and right ends of the filter frame, and the side panels and the front panel of the air conditioner outdoor unit are provided with snap-fitting openings that can be engaged with the elastic buckles.

[0009] Furthermore, two elastic buckles are respectively provided at the left and right ends of the filter frame, and the two elastic buckles at the same end are symmetrically arranged near the upper and lower ends of the filter frame.

[0010] Furthermore, the elastic buckle includes a connecting column and two spring plates arranged at one end of the connecting column away from the filter frame, and the two spring plates and the connecting column form an arrow shape.

[0011] Furthermore, the bayonet is a cavity formed by n-shaped ribs welded to the side panels and the front panel and the side panels and the front panel.

[0012] The beneficial effect of the utility model is that by arranging the filter frame on the aluminum foil fins on the back of the air-conditioning outdoor unit and on the hollow structure on the side, it is possible to prevent dust, lint, fallen leaves and other debris from being adsorbed into the aluminum foil fins, thereby ensuring the ventilation effect of the aluminum foil fins and the heat dissipation effect of the condenser. The entire filter frame has a simple structure and is easy to install, and can form effective physical protection for the aluminum foil fins of the condenser. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the filter frame;

[0014] Figure 2 This is the rear view of the filter frame installed on the air conditioner outdoor unit;

[0015] Figure 3 yes Figure 2 Right view of;

[0016] Figure 4 yes Figure 3 A magnified view of part A;

[0017] Figure 5 It is a schematic diagram of the structure of the bayonet.

[0018] Marked in the figure, 1-filter frame, 2-side plate, 3-front plate, 4-elastic buckle, 5-bayonet, 11-filter, 41-connecting column, 42-spring, 51-rib. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] It should be noted that if there are directional indication terms in the present invention, such as up, down, left, right, front, and back directions and orientation terms, they are for the purpose of facilitating the description of the relative position relationship between components, and are not for the absolute position of the related components or the position relationship between components. They are only used to explain the relative position relationship and movement of the components in a certain posture. If the specific posture changes, the directional indication will also change accordingly. If there are terms related to quantity in the present invention, such as "multiple", "multiple", "several", etc., they specifically refer to two or more.

[0021] like Figure 1-3As shown, the utility model is used for an air filter screen of an outdoor unit of an air conditioner, comprising a filter screen frame 1 with an L-shaped cross section and a plurality of filters 11 evenly distributed on the filter screen frame 1, wherein the filter screen frame 1 is attached to the aluminum foil fins on the back of the outdoor unit of the air conditioner and the side with a hollow structure, and the left and right ends of the filter screen frame 1 are respectively fixedly connected to the side panels 2 and the front panels 3 of the outdoor unit of the air conditioner. The outdoor unit of a current small household air conditioner generally has aluminum foil fins exposed on the back and the left side, and a hollow frame is also provided on the left side, so in order to protect both sides at the same time, the filter screen frame 1 is set to an L-shaped structure. The size of the filter screen frame 1 is customized according to the size of the outdoor unit of the air conditioner to ensure that it can completely cover the aluminum foil fins, but does not exceed the outer contour of the outdoor unit of the air conditioner. As for the connection method between the filter screen frame 1 and the outdoor unit of the air conditioner, screw connection, bonding or clamping can be adopted to ensure that the two are firmly connected.

[0022] Considering that the air conditioner outdoor unit is exposed to the outside for a long time and is always affected by rain and sunlight, in order to increase its service life, it is best to use PP material with strong weather resistance. The filter frame 1 and the filter 11 adopt an integral injection molding structure, which can increase the structural strength and is easy to clean.

[0023] As for the connection mode between the filter frame 1 and the air conditioner outdoor unit, the utility model preferably adopts a snap connection, that is, at least two elastic snap buckles 4 are respectively provided at the left and right ends of the filter frame 1, preferably two, and the two elastic snap buckles 4 at the same end are symmetrically arranged near the upper and lower ends of the filter frame 1. The side panels 2 and the front panel 3 of the air conditioner outdoor unit are provided with a snap opening 5 that can be snapped with the elastic snap buckle 4. The snap connection is convenient for anti-seepage disassembly and assembly, because the air conditioner outdoor unit is generally installed in a small space, and the snap connection method can reduce the difficulty of the installer's work.

[0024] Furthermore, in order to make the filter frame 1 close to the air conditioner outdoor unit, the utility model adopts a buckle structure that can play a tightening role. Figure 4 As shown, the elastic buckle 4 includes a connecting column 41 and two spring plates 42 arranged at one end of the connecting column 41 away from the filter frame 1. The two spring plates 42 and the connecting column 41 form an arrow shape. To ensure stable snap connection, the width of the bayonet 5 should be larger than the width of the connecting column 41 and smaller than the width of the two spring plates 42. During installation, first insert the elastic buckle 4 on the left side into the bayonet 5 of the side panel 2, and then pull the other end of the filter frame 1 so that the elastic buckle 4 at this end is inserted into the bayonet 5 of the front panel 3. By controlling the size, the spring plates 42 can be in a tensioned state after both ends are snapped into place. In addition, the filter frame 1 is L-shaped, so the spring plates 42 can be used to press the filter frame 1 against the aluminum foil fins of the air conditioner outdoor unit. For the bayonet 5, as shown in FIG. Figure 5As shown, the n-shaped ribs 51 welded on the side panels 2 and the front panel 3 and the cavity enclosed by the side panels 2 and the front panel 3 can be used as the bayonet 5 .

[0025] The utility model arranges a filter frame 1 on the aluminum foil fins on the back of the air conditioner outdoor unit and on the hollow structure on the side, so as to prevent dust, lint, fallen leaves and other debris from being adsorbed into the aluminum foil fins, thereby ensuring the ventilation effect of the aluminum foil fins and the heat dissipation effect of the condenser. The entire filter frame 1 has a simple structure and is easy to install. It can form effective physical protection for the aluminum foil fins of the condenser and has good practicality and application value.

Claims

1. An air filter for an outdoor unit of an air conditioner, characterized in that: The invention comprises a filter frame (1) having an L-shaped cross section and a plurality of filters (11) evenly distributed on the filter frame (1); the filter frame (1) is attached to the aluminum foil fins on the back of an air conditioner outdoor unit and to the side surface with a hollow structure; the left and right ends of the filter frame (1) are respectively fixedly connected to the side panel (2) and the front panel (3) of the air conditioner outdoor unit.

2. The air filter for an outdoor unit of an air conditioner according to claim 1, characterized in that: The filter screen frame (1) and the filter screen (11) are integrally injection-molded structures made of PP material.

3. The air filter for an outdoor unit of an air conditioner according to claim 1, characterized in that: At least two elastic buckles (4) are respectively provided at the left and right ends of the filter frame (1), and the side panels (2) and the front panel (3) of the air conditioner outdoor unit are provided with bayonet openings (5) that can be engaged with the elastic buckles (4).

4. The air filter for an outdoor unit of an air conditioner according to claim 3, characterized in that: Two elastic buckles (4) are respectively arranged at the left and right ends of the filter frame (1), and the two elastic buckles (4) at the same end are symmetrically arranged at positions close to the upper and lower ends of the filter frame (1).

5. The air filter for an outdoor unit of an air conditioner according to claim 3, characterized in that: The elastic buckle (4) comprises a connecting column (41) and two spring sheets (42) arranged at one end of the connecting column (41) away from the filter frame (1), and the two spring sheets (42) and the connecting column (41) form an arrow shape.

6. The air filter for an outdoor unit of an air conditioner according to claim 5, characterized in that: The bayonet (5) is a cavity formed by an n-shaped rib (51) welded to the side plate (2) and the front plate (3), and the side plate (2) and the front plate (3).

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