Filter screen mounting structure of air conditioner indoor unit

Abstract

The application discloses a filter screen mounting structure of an air conditioner indoor unit, which comprises a casing, the casing is provided with an air inlet, and a filter screen is mounted on the air inlet, characterized in that the air inlet is arranged upwards, the periphery of the air inlet is provided with a buckle extending upwards, and the filter screen is inserted into the upper part of the air inlet and is fixed by the buckle. The application has the advantages that the air inlet of the air conditioner indoor unit is arranged upwards, the periphery of the air inlet is provided with the buckle extending upwards, the filter screen can be inserted into the upper part of the air inlet when the filter screen is mounted, the filter screen can be fixed by the buckle, the filter screen can be pulled out of the air inlet when the filter screen is dismounted, and the mounting and dismounting are very convenient. In addition, the filter screen can not be loosened after being mounted in place under the action of the buckle.

Description

Technical Field

[0001] This invention relates to an indoor unit of an air conditioner, and more particularly to a filter installation structure for an indoor unit of an air conditioner. Background Technology

[0002] With the improvement of living standards, air conditioners have become essential appliances for regulating indoor air temperature, humidity, and air purity in daily life. Generally, kitchens are relatively small spaces, and the hot summer weather, coupled with the large amount of heat emitted by various heat sources during cooking, makes the kitchen environment hot and uncomfortable. Installing an air conditioner on top of a range hood allows the range hood to remove cooking fumes while simultaneously regulating the kitchen temperature. Kitchen air conditioners typically have indoor units, and filters are usually installed at the air inlet to purify the air entering the unit. However, the kitchen environment is unique; during stir-frying, especially high-heat stir-frying, the air contains a lot of oil fumes and dust. When the air conditioner operates, it draws in air containing these fumes and dust. Most of the small oil droplets and dust in the fumes are intercepted when passing through the filter, accumulating and forming oil droplets that flow down the filter onto the air conditioner's casing. If left untreated, these oil droplets and dust will condense and accumulate between the casing and the filter, making filter removal difficult. Furthermore, the filter needs to be removed and replaced after prolonged use. Therefore, it is necessary to design a filter installation structure that is easy to install and disassemble and has reliable installation. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a filter installation structure for an air conditioner indoor unit that is simple in structure, easy to install and secure in the face of the above-mentioned existing technology.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: the filter installation structure of the indoor unit of the air conditioner includes a housing, the housing has an air inlet, and a filter is installed in the air inlet. The air inlet is characterized in that: the air inlet is arranged facing upward, the periphery of the air inlet has upwardly extending buckles, and the filter is inserted into the upper part of the air inlet and is limited and fixed by the buckles.

[0005] Preferably, the air inlet has a square structure, and the clips include fixing clips on the left and right sides in the filter insertion direction and a limiting clip on the front side in the filter insertion direction. This makes filter installation very convenient; simply insert the filter above the air inlet.

[0006] To make the filter installation structure more secure, there are at least two fixing clips on both the left and right sides, and they are distributed at intervals along the direction of filter insertion.

[0007] To prevent the filter from wobbling after installation, the fixing buckle includes a first buckle wall extending upward from the edge of the air inlet and a first hook extending inward from the top of the first buckle wall after bending. The left and right outer walls of the filter abut against the corresponding first buckle walls, and the tops of the left and right sides of the filter abut against the first hooks.

[0008] In order to make the filter screen tighten as it is pushed in, the thickness of the first snap-fit ​​wall gradually increases along the insertion direction of the filter screen.

[0009] In order to make the filter screen tighten as it is pushed in, the first hook extends diagonally downward along the direction of filter screen insertion.

[0010] Further preferably, there are at least two limiting buckles, which are distributed at intervals on the left and right.

[0011] To prevent the filter from tilting up after being pushed into place, the limiting buckle includes a second buckle wall extending upward from the front edge of the air inlet and a second hook extending backward from the top of the second buckle wall, and the second hook extends obliquely upward from front to back.

[0012] To prevent the filter from moving left or right during insertion, guide walls extend upwards along both the left and right edges of the air inlet. These guide walls then limit the filter's movement, allowing for smooth insertion.

[0013] Further preferably, the guide wall is located at the front of the left and right edges of the air inlet and is positioned between adjacent fixing buckles.

[0014] To further facilitate smooth filter insertion, a chamfered structure is provided at the rear of the left edge and / or the rear of the right edge of the air inlet to guide filter insertion. With the chamfered structure, the filter will not collide with the edge of the air inlet during insertion, ensuring smooth and complete insertion.

[0015] More preferably, the filter screen is inserted horizontally above the air inlet.

[0016] In a further preferred embodiment, a heat exchanger is installed inside the casing, and a fan is installed on the side of the casing along the airflow direction. The filter screen is located upstream of the heat exchanger, and the heat exchanger is located upstream of the fan inlet.

[0017] Compared with the prior art, the advantages of the present invention are as follows: the air inlet of the indoor unit of the air conditioner is set upward, and there are upward-extending buckles around the air inlet. When installing the filter, the filter is inserted above the air inlet and the filter can be fixed by the buckles. When removing the filter, the filter can be pulled out from the air inlet. Both installation and removal are very convenient. Moreover, under the action of the buckles, the filter will not loosen after it is installed in place, and the installation is very firm. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0019] Figure 2 This is an exploded view of an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the snap-fit ​​installation structure according to an embodiment of the present invention;

[0021] Figure 4 for Figure 3 An enlarged schematic diagram of part A in the middle;

[0022] Figure 5 for Figure 3 Enlarged schematic diagram of part B in the middle;

[0023] Figure 6 This is a schematic diagram of the installation structure of the buckle from another angle according to an embodiment of the present invention;

[0024] Figure 7 for Figure 6 An enlarged schematic diagram of section C;

[0025] Figure 8 This is another structural schematic diagram of an embodiment of the present invention. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] like Figure 1 and Figure 2 As shown, the indoor unit of the air conditioner in this embodiment includes a casing 1. The casing 1 has an upward-facing air inlet 2, and the periphery of the air inlet 2 has upward-extending buckles. A filter 3 is inserted horizontally above the air inlet 2 and is fixed by the buckles. A heat exchanger 5 is installed inside the casing 1, and a fan 8 is installed on the side of the casing 1. Along the airflow direction, the filter 3 is located upstream of the heat exchanger 5, and the heat exchanger 5 is located upstream of the air inlet of the fan 8. Under the action of the fan 8, external air enters the casing 1 after being filtered by the filter 3, passes through the heat exchanger 5, and flows out from the air outlet of the fan 8.

[0028] In this embodiment, the air inlet 2 has a square structure, and the latches include a fixing latch 41 and a limiting latch 42. Figure 2 The direction indicated by the middle arrow D is forward. The fixing clips 41 are located on the left and right sides of the air inlet 2, that is, on the left and right sides of the filter 3 insertion direction. In this embodiment, there are three fixing clips 41 on the left and three on the right, spaced apart along the front-back direction. The limiting clips 42 are located at the front edge of the air inlet 2. In this embodiment, there are two limiting clips 42, spaced apart on the left and right sides.

[0029] like Figures 3 to 7 As shown, the fixing buckle 41 includes a first buckle wall 411 extending upward from the edge of the air inlet 2 and a first hook 412 extending inward after being bent from the top of the first buckle wall. The thickness of the first buckle wall 411 gradually increases along the insertion direction of the filter screen 3, and the difference in thickness between the front and rear of the first buckle wall 411 is represented by d. See [reference needed]. Figure 7 The first hook 412 extends obliquely downward along the insertion direction of the filter screen 3, and the inner surface of the first hook 412 forms an angle β with the horizontal plane, see [reference]. Figure 5 The existence of the aforementioned thickness difference d and included angle β facilitates the forward insertion of the filter screen 3, and the filter screen 3 becomes tighter and tighter as it is pushed in, preventing the filter screen 3 from becoming loose.

[0030] The limiting buckle 42 includes a second buckle wall 421 extending upward from the front edge of the air inlet 2 and a second hook 422 extending rearward after being bent from the top of the buckle wall. The second hook 422 extends obliquely upward from front to rear, and the inner surface of the second buckle forms an angle α with the horizontal plane. (See [reference]). Figure 4 Setting an angle α can prevent the filter 3 from warping after it is pushed into place.

[0031] Alternatively, the filter 3 can be smoothly inserted along the air inlet 2 using the following installation structure. For example... Figure 8 As shown, guide walls 6 extend upwards from both the left and right edges of the air inlet 2. In this embodiment, the guide walls 6 are located at the front of the left and right edges of the air inlet 2 and between adjacent fixing clips 41. During insertion, the left and right sides of the filter 3 are restricted by the corresponding guide walls 6, allowing the filter 3 to be inserted smoothly. Furthermore, a chamfered structure 7 is provided at the rear of the left edge and / or the rear of the right edge of the air inlet 2 to guide the insertion of the filter 3. With the chamfered structure 7 in place, the filter 3 will not collide with the edge of the air inlet 2 during insertion, ensuring smooth insertion to the bottom.

Claims

1. A filter installation structure for an indoor unit of an air conditioner, comprising a housing (1), the housing (1) having an air inlet (2), and a filter (3) installed in the air inlet (2), characterized in that: The air inlet (2) is set upward, and the periphery of the air inlet (2) has upward-extending buckles. The filter (3) is inserted into the air inlet (2) and is limited and fixed by the buckles. The air inlet (2) has a square structure. The buckles include fixing buckles (41) on the left and right sides of the filter insertion direction and limiting buckles (42) on the front side of the filter insertion direction. The fixing buckles (41) include a first buckle wall (411) extending upward from the edge of the air inlet (2) and a first hook (412) extending inward after bending from the top of the first buckle wall. The left and right outer walls of the filter (3) abut against the corresponding first buckle walls (411). The tops of the left and right sides of the filter (3) abut against the first hooks (412). The thickness of the first buckle wall (411) gradually increases along the insertion direction of the filter (3). The first hook (412) extends obliquely downward along the insertion direction of the filter (3).

2. The filter installation structure of the indoor unit of an air conditioner according to claim 1, characterized in that: There are at least two fixing clips (41) on the left and right sides, and they are distributed at intervals along the insertion direction of the filter (3).

3. The filter installation structure of the indoor unit of an air conditioner according to claim 1, characterized in that: The limiting buckle (42) has at least two parts and is distributed on the left and right sides at intervals.

4. The filter installation structure of the indoor unit of an air conditioner according to claim 1, characterized in that: The limiting buckle (42) includes a second buckle wall (421) extending upward from the front edge of the air inlet (2) and a second hook (422) extending backward after being bent from the top of the second buckle wall. The second hook (422) extends obliquely upward from front to back.

5. The filter installation structure of the indoor unit of an air conditioner according to claim 1, characterized in that: The air inlet (2) has guide walls (6) extending upwards along both the left and right edges.

6. The filter installation structure of the air conditioner indoor unit according to claim 5, characterized in that: The guide wall (6) is located at the front of the left and right edges of the air inlet (2) and between adjacent fixing buckles (41).

7. The filter installation structure of the indoor unit of an air conditioner according to claim 1, characterized in that: A chamfered structure (7) is provided at the rear of the left edge of the air inlet (2) and / or at the rear of the right edge of the air inlet (2) to guide the insertion of the filter screen (3).

8. The filter installation structure of the indoor unit of an air conditioner according to claim 1, characterized in that: The filter (3) is inserted horizontally above the air inlet (2).

9. The filter installation structure of the indoor unit of an air conditioner according to claim 1, characterized in that: A heat exchanger (5) is installed inside the casing (1), and a fan (8) is installed on the side of the casing (1). Along the air flow direction, the filter (3) is located upstream of the heat exchanger (5), and the heat exchanger (5) is located upstream of the air inlet of the fan (8).

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