Filtering type return air grid of automobile air conditioner

Abstract

The utility model discloses an automobile air conditioner filter type air return grid which comprises an air return grid frame, a ventilation opening is formed in the surface of the air return grid frame, and a filter screen is installed on the inner side of the ventilation opening. According to the air return grid, the grating plate connected with the filter screen is clamped and mounted at the ventilation opening of the air return grid frame, and the integrally formed U-shaped clamping part on the clamping piece is forced to deform by pulling the grating plate in the ventilation opening, so that the bulge on the surface of the clamping part is separated from the clamping state of the clamping groove in the ventilation opening, and the grating plate is quickly disassembled; on the basis, a plurality of telescopic rubber frames which are in contact with the edge of the filter screen are arranged on the grating plate, and a spring is embedded in each telescopic rubber frame, so that the grating plate is elastically connected with the filter screen, and the filter screen can be cleaned as the air continuously penetrates through the ventilation openings of the air return grid frame. And certain thrust is applied to the filter screen, so that the filter screen shakes in the self-adaptive telescopic stage of the telescopic rubber frame.

Description

Technical Field

[0001] This utility model relates to the field of automotive air conditioning technology, and in particular to an automotive air conditioning filter return air grille. Background Technology

[0002] Currently, major cities are vigorously developing rail transit, which places high demands on the comfort of passengers and the interior design of rail vehicles. As we all know, air conditioning is undoubtedly one of the most important means of providing passenger comfort, and the design and installation location of the return air filter is an important aspect of air conditioning design, especially interior design.

[0003] A search revealed that Chinese Patent Publication No. CN205113345U discloses a return air grille device for an air conditioner in an urban rail vehicle, including a return air filter and a return air grille installed inside the vehicle. F-shaped slot profiles are fixed vertically on both sides of the return air grille. The return air filter is inserted into the slots of the F-shaped slot profiles, and the width of the slot matches the thickness of the return air filter frame. The return air grille is fixed to the body panel of the vehicle.

[0004] However, due to the poor air quality inside the vehicle, various impurities of different sizes are directly adsorbed onto the filter screen of this air return grille device, affecting the filtration speed and thus making the filter screen more frequently need cleaning.

[0005] The period is relatively short.

[0006] To address this issue, a filter-type return air grille for automotive air conditioning is proposed, which offers advantages such as easy filter cleaning and extended filter cleaning cycles, thereby resolving the problems mentioned in the background technology. Utility Model Content

[0007] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a filter-type return air grille for automotive air conditioning.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a car air conditioning filter return air grille, comprising a return air grille frame, a vent opening on the surface of the return air grille frame, a filter screen installed inside the vent opening, a grille plate above the filter screen, the grille plate being inside the vent opening, a clip integrally formed on the side of the grille plate, a snap-fit ​​part integrally formed at the bottom of the clip, and an arc protrusion on the snap-fit ​​part, a slot is provided on the inner side of the vent opening, the arc protrusion of the snap-fit ​​part engaging with the slot, and several telescopic rubber frames are adhered to the side of the grille plate facing the filter screen, and a spring is embedded in the inner side of each telescopic rubber frame.

[0009] As a further description of the above technical solution: the surface of the grating plate is provided with a rectangular opening, and a number of louvers are installed at equal intervals in the rectangular opening.

[0010] As a further description of the above technical solution: the cross-section of the telescopic rubber frame is a rectangular frame structure, and wavy pleats are provided on the left and right sides of the telescopic rubber frame respectively.

[0011] As a further description of the above technical solution: the snap-fit ​​part of the card is a U-shaped structure, and the arc protrusion of the snap-fit ​​part is a hemispherical structure.

[0012] As a further description of the above technical solution: two clips are respectively provided on the left and right sides of the grille, and several slots are opened on the inner side of the ventilation opening corresponding to the clips.

[0013] As a further description of the above technical solution: the inner side of the rectangular opening of the grille is provided with a number of connecting grooves, and each of the louvers has a cylinder at both ends that is connected to the connecting groove.

[0014] This utility model has the following beneficial effects:

[0015] In this invention, a grille plate that is snapped onto the ventilation opening of the return air grille frame and connected to the filter screen is used. By pulling the grille plate inside the ventilation opening, the integrally formed U-shaped snap-fit ​​part on the snap-fit ​​part is deformed under force, causing the protrusion on the surface of the snap-fit ​​part to disengage from the snap-fit ​​state with the slot inside the ventilation opening, realizing the quick disassembly of the grille plate and facilitating the cleaning of the filter screen inside the ventilation opening. On this basis, since the grille plate is provided with several telescopic rubber frames that contact the edge of the filter screen, and each telescopic rubber frame is embedded with a spring, the grille plate and the filter screen are elastically connected. As air continuously passes through the ventilation opening of the return air grille frame, a certain thrust is applied to the filter screen, causing the filter screen to vibrate during the adaptive extension and contraction phase of the telescopic rubber frames, which facilitates the self-cleaning of impurities on the surface of the filter screen, thereby helping to extend the cleaning cycle of the filter screen. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a filter-type return air grille for automotive air conditioning according to this utility model;

[0017] Figure 2 This is a cross-sectional view of a filter-type return air grille for automotive air conditioning according to this utility model.

[0018] Figure 3 This is a schematic diagram of the grating plate structure.

[0019] Legend:

[0020] 1. Return air grille frame; 2. Ventilation opening; 3. Grille panel; 4. Louver; 5. Clip; 6. Filter screen; 7. Telescopic rubber frame; 8. Clip-on part; 9. Clip groove; 10. Arc protrusion; 11. Spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] According to an embodiment of the present invention, an automotive air conditioning filter return air grille is provided.

[0023] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-3 As shown, an automotive air conditioning filter return air grille according to an embodiment of the present utility model includes a return air grille frame 1. The surface of the return air grille frame 1 is provided with a ventilation opening 2, and a filter screen 6 is installed inside the ventilation opening 2. A grille plate 3 is provided above the filter screen 6, and the grille plate 3 is located inside the ventilation opening 2. A clip 5 is integrally formed on the side of the grille plate 3, and a snap-fit ​​part 8 is integrally formed at the bottom of the clip 5. An arc protrusion 10 is provided on the snap-fit ​​part 8 of the clip 5. A slot 9 is provided on the inner side of the ventilation opening 2. The arc protrusion 10 of the snap-fit ​​part 8 snaps into the slot 9. Several telescopic rubber frames 7 are glued to the side of the grille plate 3 facing the filter screen 6, and a spring 11 is embedded in the inner side of each telescopic rubber frame 7. In order to ensure the reliability of the filter screen 6 installation, the filter screen 6 is kept in contact with the lower part of the inner side of the ventilation opening 2. The vibration of the filter screen 6 is based on the air volume at the ventilation opening 2 and the intermittent airflow process.

[0024] In one embodiment, the surface of the grille 3 has a rectangular opening, and a plurality of louvers 4 are installed equidistantly in the rectangular opening. The louvers 4 enable the grille 3 to have a ventilation effect and make it easy to adjust the airflow direction.

[0025] In one embodiment, the cross-section of the telescopic rubber frame 7 is a rectangular frame structure, and wavy pleats are provided on the left and right sides of the telescopic rubber frame 7. The wavy pleats facilitate the telescopic expansion and contraction of the telescopic rubber frame 7.

[0026] In one embodiment, the latching part 8 of the latching member 5 has a U-shaped structure, and the arc protrusion 10 of the latching part 8 has a hemispherical structure. The U-shaped latching part 8 is easily deformed by force, which facilitates the unlocking of the arc protrusion 10 from the slot 9.

[0027] In one embodiment, two clips 5 are provided on the left and right sides of the grille plate 3 respectively, and several slots 9 are opened on the inner side of the ventilation opening 2 corresponding to the clips 5. The clips 5 facilitate the quick assembly and disassembly of the grille plate 3.

[0028] In one embodiment, the inner side of the rectangular opening of the grille plate 3 is provided with several connecting grooves, and each louver 4 has a cylinder connected to the connecting groove at both ends. This structure allows the louver 4 to rotate and easily adjust the airflow direction.

[0029] Working principle:

[0030] In use, a grille plate 3, which is connected to the filter screen 6, is snapped onto the ventilation opening 2 of the return air grille frame 1. When the grille plate 3 is removed, by pulling the grille plate 3 inside the ventilation opening 2, the U-shaped snap-fit ​​part 8 integrally formed on the snap-fit ​​part 5 is deformed under force, so that the arc protrusion 10 on the surface of the snap-fit ​​part 8 is disengaged from the snap-fit ​​state of the snap-fit ​​groove 9 inside the ventilation opening 2, realizing the quick removal of the grille plate 3 and facilitating the cleaning of the filter screen 6 inside the ventilation opening 2. At the same time, since the grille plate 3 is provided with several telescopic rubber frames 7 that contact the edge of the filter screen 6, and each telescopic rubber frame 7 is embedded with a spring 11, the grille plate 3 and the filter screen 6 are elastically connected. As air continuously passes through the ventilation opening 2 of the return air grille frame 1, a certain pushing force is applied to the filter screen 6, causing the filter screen 6 to vibrate during the adaptive extension and contraction phase of the telescopic rubber frame 7. Combined with the wavy pleats on the side of the telescopic rubber frame 7, it is easy to self-clean the impurities on the surface of the filter screen 6, thereby helping to extend the cleaning cycle of the filter screen 6.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filtering return air grille for an automobile air conditioner, comprising a return air grille frame (1), characterized in that, The surface of the return air grille frame (1) is provided with a ventilation opening (2), and a filter screen (6) is mounted on the inner side of the ventilation opening (2), the upper side of the filter screen (6) is provided with a grille plate (3), the grille plate (3) is located on the inner side of the ventilation opening (2), the side of the grille plate (3) is integrally formed with a clamping piece (5), the bottom of the clamping piece (5) is integrally formed with a clamping portion (8), the clamping portion (8) of the clamping piece (5) is provided with a circular arc protrusion (10), the inner side of the ventilation opening (2) is provided with a clamping groove (9), the circular arc protrusion (10) of the clamping portion (8) is clamped with the clamping groove (9), one side of the grille plate (3) facing the filter screen (6) is attached with a plurality of telescopic rubber frames (7), and the inner side of each telescopic rubber frame (7) is embedded with a spring (11).

2. The filtering return air grille for an automobile air conditioner according to claim 1, wherein: The surface of the grille plate (3) is provided with a rectangular opening, and a plurality of louvers (4) are installed at equal intervals in the rectangular opening.

3. The filtering return air grille for an automobile air conditioner according to claim 1, wherein: The cross section of the telescopic rubber frame (7) is a rectangular frame structure, and the left and right sides of the telescopic rubber frame (7) are respectively provided with wave-shaped wrinkles.

4. The filtering return air grille for an automobile air conditioner according to claim 1, wherein: The clamping portion (8) of the clamping piece (5) is a U-shaped structure, and the circular arc protrusion (10) of the clamping portion (8) is a hemispherical structure.

5. The filtering return air grille for an automobile air conditioner according to claim 1, wherein: The left and right sides of the grille plate (3) are respectively provided with two clamping pieces (5), and the inner side of the ventilation opening (2) is provided with a plurality of clamping grooves (9) corresponding to the clamping pieces (5).

6. The filtering return air grille for an automobile air conditioner according to claim 2, wherein: The inner side of the rectangular opening of the grille plate (3) is provided with a plurality of connecting grooves, and the two ends of each louver (4) are respectively provided with a cylindrical body connected with the connecting grooves.

Images