Air conditioner heat preservation ventilation pipe and air inlet dustproof protection structure thereof
Patent Information
- Application Number
- CN202522687928.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-18
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-18
AI Technical Summary
The filter frames of traditional air conditioning ventilation ducts are easily damaged, have high maintenance costs, and have limited insulation effects. They are also prone to condensation in environments with large temperature differences, which can lead to corrosion of the duct body.
The filter assembly uses magnetically connected components and a multi-layer insulation structure, including a polyurethane foam layer, an aluminum foil layer, and a PVC sleeve, combined with a removable filter screen design and a dual-motor driven impeller system.
It enables quick replacement of filter screens and improves insulation performance, prevents condensation, extends the service life of ventilation ducts, and provides cooling and heating functions.
Smart Images

Figure CN224932926U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air conditioning duct technology, specifically to an air conditioning insulated ventilation duct and its air inlet dustproof protection structure. Background Technology
[0002] Air conditioning ventilation ducts are a new type of pipe made primarily of metal materials, including galvanized steel, stainless steel, copper, and aluminum. They are mainly used in ventilation systems in the air conditioning industry and are widely used in homes, buildings, factories, ships, and large shopping malls to transmit cold or hot air. Since air conditioning ventilation ducts are used to transmit airflow with a relative temperature difference from the outside space, thermal insulation performance is very important. A good thermal insulation structure can save a lot of energy consumption for air conditioning.
[0003] Traditional filter installation frames typically use a snap-fit nesting structure. If the snaps are pulled too hard, the plastic limiting parts may break, thus increasing maintenance costs. At the same time, air conditioning insulation ventilation pipes usually use a single insulation material to wrap the pipe body, which has limited insulation effect. In environments with large temperature differences, condensation is likely to occur, leading to corrosion of the pipe body. Therefore, an air conditioning insulation ventilation pipe and its air inlet dustproof protection structure are proposed. Utility Model Content
[0004] The purpose of this utility model is to provide an air conditioning insulation ventilation pipe and its air inlet dustproof protection structure to solve the problems mentioned in the background art. The traditional filter screen installation frame usually adopts a snap-fit nesting structure. If the snap-fit is pulled too hard, it will easily cause the plastic limiting part to break, thereby increasing the maintenance cost. At the same time, the air conditioning insulation ventilation pipe usually uses a single insulation material to wrap the pipe body, which has limited insulation effect and is prone to condensation in environments with large temperature differences, resulting in corrosion of the pipe body.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an air conditioning insulation ventilation duct and its air inlet dustproof protection structure, comprising...
[0006] The fan coil unit includes a housing, an air inlet duct, and a ventilation duct. The air inlet duct is installed on one side of the fan coil unit housing, and the ventilation duct is installed on the other side of the fan coil unit housing. A filter assembly is provided at one end of the air inlet duct, and an insulation assembly is provided on the outside of the ventilation duct.
[0007] The filter assembly includes a fixed frame, several grilles, and a support frame. One side of the fixed frame is connected to the inside of one end of the air inlet duct via a shaft. Several grilles are installed inside the fixed frame. The support frame is fixedly connected to the inside of the fixed frame. Limiting strips are fixedly connected to the top three sides of the fixed frame. A filter screen is installed on the top of the support frame. An arc-shaped groove is opened at one end of the filter screen. A fixing assembly is installed between the air inlet duct and the fixed frame.
[0008] Preferably, the fixing component includes a first magnet and a second magnet, the first magnet being fixedly connected to the top side of the fixing frame, the second magnet being fixedly connected to the inside of the air inlet duct, and the first magnet being attracted to the bottom of the second magnet.
[0009] Preferably, a groove is provided on one side of the bottom of the fixing frame, and the limiting strip is located above the filter screen.
[0010] Preferably, the insulation component includes a polyurethane foam layer, an aluminum foil layer, and a PVC sleeve. The polyurethane foam layer is disposed on the outside of the ventilation duct, the aluminum foil layer is disposed on the outside of the polyurethane foam layer, and the PVC sleeve is wrapped around the outside of the aluminum foil layer.
[0011] Preferably, the fan coil housing has several partitions installed inside, and the fan coil body is installed inside the partitions. The two ends of the fan coil body extend to the outside of the fan coil housing.
[0012] Preferably, a fixing frame is installed inside the fan coil housing on one side of several partitions. A dual-head motor is installed on the fixing frame. A rotating shaft is fixedly connected to each of the two output shafts of the dual-head motor. A fan wheel is fixedly sleeved on the outside of the rotating shaft.
[0013] Preferably, the fixing frame has through holes at both ends, and the two through holes are located on the rear side of the wind turbine.
[0014] Preferably, a number of heating tubes are installed inside the fan coil unit housing, and the heating tubes are located on the front side of a number of partitions.
[0015] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:
[0016] This invention allows for easy disassembly by inserting a finger into the groove and pulling one side of the fixing frame. The fixing frame rotates around an axis, causing the first magnet on one side of the fixing frame to disengage from the bottom of the second magnet. This, in turn, causes the filter screen to detach from the air inlet duct. Disassembly is simple and quick by inserting a finger into one side of the arc-shaped groove and pulling the filter screen away from the support frame and the three limiting strips. This facilitates easy cleaning of the filter screen. Furthermore, the invention incorporates a polyurethane foam layer, an aluminum foil layer, and a PVC sleeve. The polyurethane foam layer provides insulation, the aluminum foil layer effectively prevents condensation, and the PVC sleeve protects the ventilation duct, polyurethane foam layer, and aluminum foil layer, extending the service life of the ventilation duct. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the ventilation duct of this utility model;
[0020] Figure 3 This is a schematic diagram of the left-side structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the filter screen structure of this utility model;
[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the fixed frame of this utility model.
[0023] Explanation of reference numerals in the attached drawings: 1. Fan coil unit housing; 2. Air inlet duct; 3. Ventilation duct; 4. Polyurethane foam layer; 5. Aluminum foil layer; 6. PVC sleeve; 7. Fixing frame; 8. Grille; 9. Support frame; 10. Filter screen; 11. Arc groove; 12. Limiting strip; 13. First magnet; 14. Second magnet; 15. Groove; 16. Heating tube; 17. Partition plate; 18. Coil body; 19. Fixing bracket; 20. Dual-head motor; 21. Rotating shaft; 22. Fan wheel. Detailed Implementation
[0024] 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.
[0025] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.
[0026] Example
[0027] Please see Figure 1-5 This utility model provides a technical solution: an air conditioning insulation ventilation pipe and its air inlet dustproof protection structure, including a fan coil housing 1, an air inlet pipe 2 and a ventilation pipe 3. The air inlet pipe 2 is installed on one side of the fan coil housing 1, and the ventilation pipe 3 is installed on the other side of the fan coil housing 1. A filter component is provided at one end of the air inlet pipe 2, and an insulation component is provided on the outside of the ventilation pipe 3.
[0028] By setting up a filter assembly, the filter screen 10 can be replaced quickly, while avoiding damage during maintenance. The filter assembly includes a fixed frame 7, several grilles 8, and a support frame 9. One side of the fixed frame 7 is connected to the inside of one end of the air inlet duct 2 via a shaft. Several grilles 8 are installed inside the fixed frame 7. The support frame 9 is fixedly connected to the inner side of the fixed frame 7. Limiting strips 12 are fixedly connected to the top three sides of the fixed frame 7. The filter screen 10 is installed on the top of the support frame 9. An arc-shaped groove 11 is opened at one end of the filter screen 10. A fixing assembly is installed between the air inlet duct 2 and the fixed frame 7. The fixing assembly includes a first magnet 13 and a second magnet 14. The first magnet 13 is fixedly connected to one side of the top of the fixed frame 7, and the second magnet 14 is fixedly connected to the first magnet 13 and the second magnet 14 is fixedly connected to the second magnet 14 and the second magnet 14 is fixedly connected to the first magnet 13 ... The fixed frame 7 is fixedly connected to the inside of the air inlet duct 2. The first magnet 13 is attracted to the bottom of the second magnet 14. A groove 15 is provided on one side of the bottom of the fixed frame 7. The limiting strip 12 is located above the filter screen 10. By inserting a finger into the groove 15 and then pulling one side of the fixed frame 7, the fixed frame 7 rotates around the axis. At the same time, the first magnet 13 on one side of the fixed frame 7 disengages from the bottom side of the second magnet 14. At this time, the fixed frame 7 drives the filter screen 10 to disengage from the inside of the air inlet duct 2. When disassembling, by inserting a finger into one side of the arc groove 11 and then pulling the filter screen 10 away from the support frame 9 and the three limiting strips 12, the filter screen 10 can be disassembled. The operation is simple and quick, which facilitates the cleaning of the filter screen 10.
[0029] When installing the filter screen 10, the filter screen 10 is installed by pressing one end of the filter screen 10 against the top of the support frame 9 and pushing the filter screen 10 to move it to the bottom of the three limit bars 12.
[0030] By setting up insulation components, the insulation effect of the pipe body can be improved and condensation can be prevented. The insulation components include a polyurethane foam layer 4, an aluminum foil layer 5, and a PVC sleeve 6. The polyurethane foam layer 4 is set on the outside of the ventilation duct 3, the aluminum foil layer 5 is set on the outside of the polyurethane foam layer 4, and the PVC sleeve 6 is wrapped around the outside of the aluminum foil layer 5. By setting up the polyurethane foam layer 4, the aluminum foil layer 5, and the PVC sleeve 6, the polyurethane foam layer 4 can play an insulation role, the aluminum foil layer 5 can effectively prevent condensation, and the PVC sleeve 6 can provide protection for the ventilation duct 3, the polyurethane foam layer 4, and the aluminum foil layer 5, extending the service life of the ventilation duct 3.
[0031] The fan coil unit housing 1 has several partitions 17 installed inside, and a coil body 18 is installed inside each partition 17. Both ends of the coil body 18 extend to the outside of the fan coil unit housing 1. A mounting bracket 19 is installed on one side of each partition 17 inside the fan coil unit housing 1. A dual-head motor 20 is mounted on the mounting bracket 19. A rotating shaft 21 is fixedly connected to each of the two output shafts of the dual-head motor 20. A fan wheel 22 is fixedly sleeved on the outside of the rotating shaft 21. Through holes are provided at both ends of the mounting bracket 19, with the two through holes located at the rear of the fan wheel 22. On the side, when the fan is in use, the two output shafts of the dual-head motor 20 drive the impellers 22 on the two rotating shafts 21 to rotate, which can draw indoor air into the air intake duct 2 and then discharge it through the ventilation duct 3, continuously circulating the indoor air and exchanging heat with the coil body 18 inside the partition 17, thereby achieving the effect of cooling and heating; several heating tubes 16 are installed inside the fan coil housing 1, and the heating tubes 16 are located in front of several partitions 17. The heating tubes 16 can provide auxiliary heating when the fan coil is heating.
[0032] The working principle or structural principle is as follows: When cleaning the filter screen 10, insert your finger into the groove 15 and pull one side of the fixing frame 7. The fixing frame 7 rotates around the axis, and at the same time, the first magnet 13 on one side of the fixing frame 7 disengages from the bottom side of the second magnet 14. At this time, the fixing frame 7 drives the filter screen 10 to disengage from the air inlet duct 2. When disassembling, insert your finger into one side of the arc groove 11 and pull the filter screen 10 away from the support frame 9 and the three limiting strips 12 to complete the disassembly of the filter screen 10. The operation is simple and quick, which facilitates the cleaning of the filter screen 10. When installing the filter screen 10, press one end of the filter screen 10 against the top of the support frame 9 and push the filter screen 10 to move it to the bottom of the three limiting strips 12 to complete the installation of the filter screen 10.
[0033] By installing a polyurethane foam layer 4, an aluminum foil layer 5, and a PVC sleeve 6 on the outside of the ventilation duct 3, the polyurethane foam layer 4 can provide insulation, the aluminum foil layer 5 can effectively prevent condensation, and the PVC sleeve 6 can protect the ventilation duct 3, the polyurethane foam layer 4, and the aluminum foil layer 5, extending the service life of the ventilation duct 3. When the fan is in use, the two output shafts of the dual-head motor 20 drive the impellers 22 on the two rotating shafts 21 to rotate, which can draw indoor air into the air intake duct 2 and then discharge it through the ventilation duct 3, continuously circulating the indoor air and exchanging heat with the coil body 18 inside the partition 17, thereby achieving the effect of cooling and heating. The heating tube 16 can provide auxiliary heating for the fan coil unit.
[0034] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.
Claims
1. An air conditioning insulation and ventilation duct and its air inlet dustproof protection structure, characterized in that, include The fan coil housing (1), the air inlet pipe (2) and the ventilation pipe (3) are provided. The air inlet pipe (2) is installed on one side of the fan coil housing (1) and the ventilation pipe (3) is installed on the other side of the fan coil housing (1). A filter assembly is provided at one end of the air inlet pipe (2) and a heat insulation assembly is provided on the outside of the ventilation pipe (3). The filter assembly includes a fixed frame (7), several grilles (8) and a support frame (9). One side of the fixed frame (7) is connected to the inside of one end of the air inlet duct (2) via a shaft. Several grilles (8) are installed inside the fixed frame (7). The support frame (9) is fixedly connected to the inside of the fixed frame (7). Limiting strips (12) are fixedly connected to the top three sides of the fixed frame (7). A filter screen plate (10) is installed on the top of the support frame (9). An arc groove (11) is opened at one end of the filter screen plate (10). A fixing assembly is installed between the air inlet duct (2) and the fixed frame (7).
2. The air conditioning insulation ventilation duct and its air inlet dustproof protection structure according to claim 1, characterized in that, The fixing component includes a first magnet (13) and a second magnet (14). The first magnet (13) is fixedly connected to the top side of the fixing frame (7), and the second magnet (14) is fixedly connected to the inside of the air inlet duct (2). The first magnet (13) is attracted to the bottom of the second magnet (14).
3. The air conditioning insulation ventilation duct and its air inlet dustproof protection structure according to claim 1, characterized in that, The bottom side of the fixed frame (7) is provided with a groove (15), and the limiting strip (12) is located above the filter screen (10).
4. The air conditioning insulation ventilation duct and its air inlet dustproof protection structure according to claim 1, characterized in that, The insulation component includes a polyurethane foam layer (4), an aluminum foil layer (5), and a PVC sleeve (6). The polyurethane foam layer (4) is disposed on the outside of the ventilation duct (3), the aluminum foil layer (5) is disposed on the outside of the polyurethane foam layer (4), and the PVC sleeve (6) is wrapped around the outside of the aluminum foil layer (5).
5. The air conditioning insulation ventilation duct and its air inlet dustproof protection structure according to claim 1, characterized in that, The fan coil housing (1) has several partitions (17) installed inside, and the fan coil body (18) is installed inside the several partitions (17). The two ends of the fan coil body (18) extend to the outside of the fan coil housing (1).
6. The air conditioning insulation ventilation duct and its air inlet dustproof protection structure according to claim 5, characterized in that, Inside the fan coil housing (1), a fixing frame (19) is installed on one side of several partitions (17). A dual-head motor (20) is installed on the fixing frame (19). A rotating shaft (21) is fixedly connected to each of the two output shafts of the dual-head motor (20). A wind turbine (22) is fixedly sleeved on the outside of the rotating shaft (21).
7. The air conditioning insulation ventilation duct and its air inlet dustproof protection structure according to claim 6, characterized in that, Both ends of the fixing frame (19) are provided with through holes, and the two through holes are located on the rear side of the wind turbine (22).
8. The air conditioning insulation ventilation duct and its air inlet dustproof protection structure according to claim 5, characterized in that, The fan coil housing (1) is equipped with several heating tubes (16), which are located in front of several partitions (17).
