A heating, ventilation, and air conditioning filter device

Abstract

This utility model relates to the field of air filtration technology and discloses a heating, ventilation, and air conditioning (HVAC) filtration device, including HVAC ducts. A detachable filter screen and filtration device are installed inside the HVAC ducts. The filtration device includes a first filter assembly, a second filter assembly, and a third filter assembly arranged in sequence. Each of the first, second, and third filter assemblies includes a symmetrically arranged and hinged frame. Each frame contains a screen plate and a sealing strip surrounding the screen plate. The first, second, and third filter assemblies respectively contain waterproof non-woven fabric, meltblown non-woven fabric, and activated carbon cloth, which are pressed and sealed with the sealing strip. The advantage of this utility model compared to existing technologies is that it facilitates the replacement of the filter media.

Description

Technical Field

[0001] This utility model relates to the field of air filtration technology, specifically to a heating, ventilation, and air conditioning (HVAC) filtration device. Background Technology

[0002] Heating, ventilation and air conditioning (HVAC) refers to systems or related equipment in indoor or vehicle interiors that are responsible for heating, ventilation and air conditioning.

[0003] The design of heating, ventilation, and air conditioning (HVAC) systems applies thermodynamics, fluid mechanics, and fluid machinery, and is an important branch of mechanical engineering. Its purpose is to create indoor artificial environments that are beneficial to human survival.

[0004] HVAC systems need to filter the air while regulating temperature. Existing filters are not easy to disassemble and replace the filter media. Over time, this can lead to significant health risks and needs to be improved. Utility Model Content

[0005] (I) Technical problems to be solved

[0006] The technical problem to be solved by this utility model is to overcome the above difficulties and provide a HVAC filter device that facilitates the replacement of the filter medium.

[0007] (II) Technical Solution

[0008] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a heating, ventilation, and air conditioning (HVAC) filtration device, comprising HVAC pipes, wherein a detachable filter screen and a filtration device are provided inside the HVAC pipes.

[0009] The filtration device includes a first filter component, a second filter component, and a third filter component arranged in sequence.

[0010] The first filter assembly, the second filter assembly, and the third filter assembly all include symmetrical and hingedly connected square frames, and each square frame is provided with a screen plate and a sealing strip surrounding the screen plate.

[0011] The first filter assembly, the second filter assembly, and the third filter assembly are respectively provided with waterproof non-woven fabric, meltblown non-woven fabric, and activated carbon cloth that are squeezed and sealed with the sealing strip.

[0012] As an improvement, the HVAC duct is provided with a groove and an opening, the filter screen is located in the groove, the HVAC duct is provided with a limiting frame that matches the opening and is symmetrically arranged, and the filter device is located in the limiting frame.

[0013] As an improvement, the outer side of the HVAC duct is provided with a first ear and a second ear that mate with the opening, and a stop bar that is hinged to the first ear and engaged with the second ear is provided.

[0014] As an improvement, the first and second filter components are provided with a plurality of through holes evenly distributed on one side, and the third filter component is provided with a column extending into the through holes.

[0015] As an improvement, both the filter screen and the third filter assembly are provided with handles that extend to the outside of the HVAC duct.

[0016] (III) Beneficial Effects

[0017] The advantages of this utility model compared with the prior art are as follows:

[0018] 1. The filter screen and filter device are respectively inserted into the groove and opening on the HVAC pipe, and can be removed by the handle for easy disassembly;

[0019] 2. The first filter assembly, the second filter assembly, and the third filter assembly are all composed of a hinged frame, a screen plate, and a sealing strip, which facilitates the opening of the first filter assembly, the second filter assembly, and the third filter assembly to replace the waterproof non-woven fabric, meltblown non-woven fabric, and activated carbon cloth inside.

[0020] 3. The baffle can limit the filter device inside the HVAC duct to prevent the HVAC duct from detaching due to vibration. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 .

[0022] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 .

[0023] Figure 3 This is a side view of the structure of this utility model.

[0024] Figure 4 This is a utility model Figure 3 A schematic diagram of the structure in cross-section at the CC position.

[0025] As shown in the figure: 1. HVAC duct; 2. Filter screen; 3. Filter device; 4. First filter assembly; 5. Second filter assembly; 6. Third filter assembly; 7. Square frame; 8. Screen plate; 9. Sealing strip; 10. Waterproof non-woven fabric; 11. Meltblown non-woven fabric; 12. Activated carbon cloth; 13. Slide groove; 14. Opening; 15. Limiting frame; 16. First ear; 17. Second ear; 18. Stop bar; 19. Through hole; 20. Column; 21. Handle. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0027] Example 1

[0028] Combined with appendix Figure 1-4 A heating, ventilation and air conditioning (HVAC) filtration device includes an HVAC duct 1, wherein a removable filter screen 2 and a filtration device 3 are provided inside the HVAC duct 1, and the filtration device 3 includes a first filtration component 4, a second filtration component 5 and a third filtration component 6 arranged in sequence.

[0029] The HVAC pipe 1 is provided with a groove 13 and an opening 14. The filter screen 2 is located in the groove 13. The HVAC pipe 1 is provided with a limiting frame 15 that cooperates with and is symmetrically arranged with the opening 14. The filter device 3 is located in the limiting frame 15.

[0030] Both the filter screen 2 and the third filter assembly 6 are provided with handles 21 that extend to the outside of the HVAC duct 1.

[0031] The first filter assembly 4 and the second filter assembly 5 are provided with a plurality of through holes 19 evenly on one side, and the third filter assembly 6 is provided with a column 20 extending into the through holes 19.

[0032] The filter screen 2 and the filter device 3 are respectively inserted into the groove 13 and the opening 14 on the HVAC pipe 1. The column 20 can make the first filter component 4, the second filter component 5 and the third filter component 6 into a whole, which can be taken out by the handle 21. The filter screen 2 can filter large-volume impurities. The first filter component 4, the second filter component 5 and the third filter component 6 can filter small-volume impurities, germs and odors in the air in sequence.

[0033] Example 2

[0034] The first filter assembly 4, the second filter assembly 5, and the third filter assembly 6 all include symmetrical and hingedly connected square frames 7. Each square frame 7 is provided with a screen plate 8 and a sealing strip 9 surrounding the screen plate 8. Each screen plate 8 is provided with a sealing strip 9.

[0035] The first filter assembly 4, the second filter assembly 5 and the third filter assembly 6 are respectively provided with waterproof non-woven fabric 10, meltblown non-woven fabric 11 and activated carbon cloth 12, which are squeezed and sealed with the sealing strip 9.

[0036] The sealing strip 9 can seal and fix the waterproof nonwoven fabric 10, meltblown nonwoven fabric 11 and activated carbon cloth 12 between the screen plate 8. The waterproof nonwoven fabric 10 can filter small-volume impurities in the air, the meltblown nonwoven fabric 11 can filter germs in the air, and the activated carbon cloth 12 can filter odors in the air.

[0037] The outer side of the HVAC duct 1 is provided with a first ear 16 and a second ear 17 that cooperate with the opening 14. A stop bar 18 is hinged on the first ear 16 and engaged in the second ear 17. The stop bar 18 blocks the filter device 3 to prevent the filter device 3 from coming off the opening 14 due to vibration, thus affecting the sealing between the filter device and the HVAC duct 1.

[0038] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, alterations, deletions of some features, additions of features, or recombinations of features to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the innovative principles of the present invention shall still fall within the scope of the technical solutions of the present invention.

Claims

1. A heating, ventilation, and air conditioning (HVAC) filtration device, comprising an HVAC duct (1), wherein a removable filter screen (2) and a filtration device (3) are provided inside the HVAC duct (1), characterized in that: The filtration device (3) includes a first filter assembly (4), a second filter assembly (5), and a third filter assembly (6) arranged in sequence; The first filter assembly (4), the second filter assembly (5) and the third filter assembly (6) each include a symmetrical and hinged frame (7), and each frame (7) is provided with a screen plate (8) and a sealing strip (9) surrounding the screen plate (8); The first filter assembly (4), the second filter assembly (5) and the third filter assembly (6) are respectively provided with waterproof non-woven fabric (10), meltblown non-woven fabric (11) and activated carbon cloth (12) which are squeezed and sealed with the sealing strip (9).

2. The heating, ventilation, and air conditioning filter device of claim 1, wherein: The HVAC pipe (1) is provided with a groove (13) and an opening (14). The filter screen (2) is located in the groove (13). The HVAC pipe (1) is provided with a limiting frame (15) that matches and is symmetrically arranged with the opening (14). The filter device (3) is located in the limiting frame (15).

3. The heating, ventilation, and air conditioning filter device of claim 2, wherein: The outer side of the heating and ventilation pipe (1) is provided with a first ear (16) and a second ear (17) that cooperate with the opening (14). A stop bar (18) that is hinged to the first ear (16) and engaged in the second ear (17) is provided.

4. The heating, ventilation, and air conditioning filter device of claim 1, wherein: The first filter assembly (4) and the second filter assembly (5) are provided with a plurality of through holes (19) evenly on one side, and the third filter assembly (6) is provided with a column (20) extending into the through holes (19).

5. The heating, ventilation, and air conditioning filter apparatus of claim 1, wherein: Both the filter screen (2) and the third filter assembly (6) are provided with handles (21) extending to the outside of the HVAC duct (1).

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