Air conditioner air inlet assembly with internal and external circulation inlet air passing through different filter elements
By designing a dual-filter structure for internal and external circulation, the problem of existing automotive air conditioning filters being unable to distinguish between internal and external circulation has been solved, achieving efficient filtration and convenient replacement, improving in-vehicle air quality and reducing maintenance costs.
Patent Information
- Application Number
- CN202520497273.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-20
AI Technical Summary
Existing automotive air conditioning filter structures cannot effectively distinguish between internal and external air circulation, resulting in external pollutants entering the vehicle or unpleasant odors inside the vehicle not being purified. Furthermore, replacing the filter is a complex and costly process.
The design incorporates a dual-filter structure with internal and external circulation. The filter is switched between the internal and external circulation via a damper and a transmission mechanism. It is equipped with an external circulation filter and an internal circulation filter. The external circulation filter filters out large particles and contaminants, while the internal circulation filter purifies fine particles and odors. The filter can be replaced directly outside the cockpit.
It improves air filtration, reduces maintenance costs, facilitates filter replacement, and enhances in-vehicle air quality.
Smart Images
Figure CN223791292U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the automobile air conditioner, and particularly relates to the inside and outside circulation double filter element structure of automobile air conditioner. BACKGROUND
[0002] In the process of automobile operation, the air conditioning system in the vehicle plays a key role in maintaining the comfortable environment in the vehicle. The existing filter element structure of the automobile air conditioner has many deficiencies, for example, the common single filter element structure cannot effectively filter different working conditions of inside and outside circulation. When outside circulation is adopted, dust, pollen, industrial pollutants and the like in the outside world are easy to enter the vehicle, and the single filter element is difficult to comprehensively filter, thereby affecting the air quality in the vehicle; when inside circulation is adopted, peculiar smell and small particles generated in the vehicle cannot be efficiently purified. Moreover, the single filter element has high maintenance cost after long-term use, and the operation is complex when the filter element is replaced, and many components need to be disassembled, thereby consuming a large amount of time and labor cost. SUMMARY
[0003] The utility model aims at providing a kind of inside and outside circulation double filter element structure of automobile air conditioner, to solve the problems of poor filtering effect, high maintenance cost and inconvenient replacement of existing filter element of automobile air conditioner.
[0004] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:
[0005] The air conditioning air inlet assembly of the inside and outside circulation air inlet through different filter elements includes an inside and outside circulation air door, an air inlet shell, and a front end air plate. The front end air plate is fixed on the air inlet shell by screw connection. The outside circulation air door and the inside circulation air door are installed on the air inlet shell through shaft hole structure. The inside circulation air door is connected with the outside circulation air door through a transmission mechanism. The boss on the inside and outside circulation actuator is rigidly connected with the groove on the rotating shaft of the inside circulation air door, and is fixed on the air inlet shell by screw. The air door bolt is rigidly connected with the groove at the end of the shaft of the outside circulation air door through the rotating groove of the air inlet shell. The filter element cover assembly is fixed inside the air inlet shell by screw.
[0006] The outside circulation air filter element is clamped and fixed in the groove of the filter element cover assembly. The inside circulation air filter element is fixed inside the inside circulation air inlet through the clamping groove. The upper cover of the filter element cover is fixed on the filter element cover assembly by screw connection.
[0007] The utility model has the following beneficial effects:
[0008] The utility model discloses a filter element cover assembly is installed between the inside and outside circulation air inlet, and the inside and outside circulation air inlet is separated, and the outside circulation air filter element is fixed on the filter element cover assembly of the inside of outside circulation air inlet, and the filter element cover assembly is equipped with recess for placing outside circulation air filter element in its inside, and the recess around inner edge is equipped with the barb structure for clamping outside circulation air filter element, and the inside circulation air filter element is fixed on the filter element cover assembly of the inside of inside circulation air inlet, and the filter element cover assembly is equipped with the sliding slot structure for placing inside circulation air filter element in its inside for fixing inside circulation air filter element.
[0009] Can promote filter effect: inside and outside circulation are equipped with filter element respectively, can according to respective working condition pertinence filtration, and outside circulation filter element filters outside large particle and pollutant, and inside circulation filter element purifies car interior small particle and peculiar smell, and significantly promotes car interior air quality.
[0010] Can reduce maintenance cost: inside and outside circulation filter element is replaced alone, avoids unnecessary waste, and reduces maintenance cost.
[0011] Convenient to repair and replace: inside and outside circulation air filter element can be directly replaced outside the cockpit, need not to disassemble air conditioner box and instrument desk and can easily replace filter element. BRIEF DESCRIPTION OF DRAWINGS
[0012] Fig. 1 It is the schematic diagram of explosion structure for the utility model
[0013] Fig. 2 It is the schematic diagram of airflow direction for inside circulation state;
[0014] Fig. 3 It is the schematic diagram of airflow direction for outside circulation state. DETAILED DESCRIPTION
[0015] The specific implementation of the utility model is further illustrated below in combination with the drawings.
[0016] Referring to Figs. 1-3The filter core cover assembly 7 is installed inside the air inlet shell 8 and connected by screws. The outer circulation air door 3 and the inner circulation air door 10 are installed on the air inlet shell 8, and the two air doors are provided with rotating shaft structures at the ends. The air inlet shell 8 is provided with rotating holes for installing the outer and inner circulation air doors. The two air doors are installed in the corresponding rotating holes of the air inlet shell through the rotating shafts at the ends. The inner circulation air door is connected to the outer circulation air door through a transmission mechanism 9 (ball head and ball bowl connection). The boss structure on the inner and outer circulation actuator 11 is rigidly connected to the groove on the inner circulation air door rotating shaft 10. The inner and outer circulation actuator 11 is fixed on the air inlet shell 8 by screws. The inner and outer circulation actuator 11 can drive the outer circulation air door 3 and the inner circulation air door 10 to rotate in the air inlet shell 8, so as to switch the inner and outer circulation air inlet. The outer circulation air filter core 6 is installed in the groove of the filter core cover assembly 7, and the inner edge of the groove is provided with a barb structure for clamping the outer circulation air filter core. The inner circulation air filter core 5 is fixed on the filter core cover assembly 7 inside the inner circulation air inlet. The filter core cover assembly 7 is provided with a sliding groove structure for placing the inner circulation air filter core 5, so as to fix the inner circulation air filter core 5. The air door bolt 4 is rigidly connected to the groove at the end of the outer circulation air door 3 through the air inlet shell rotating groove. The filter core cover upper cover 2 is fixed on the filter core cover assembly 7 by screw connection. The front end air plate 1 is fixed on the air inlet shell 8 by screw connection.
[0017] The air inlet of the outer circulation air inlet 12 is blown out of the air outlet of the air inlet assembly 14 through the outer circulation air filter core 6. The air inlet of the inner circulation air inlet 13 is blown out of the air outlet of the air inlet assembly 14 through the inner circulation air filter core 5, realizing the structure of the air conditioner air inlet assembly with inner and outer circulation air inlets passing through different filter cores.
Claims
1. Indoor and outdoor circulation air inlet assembly of air conditioner with different filter elements, comprising indoor and outdoor circulation air doors, an air inlet shell, and a front end air plate, the front end air plate is fixed on the air inlet shell by screw connection, the outdoor circulation air door and the indoor circulation air door are installed on the air inlet shell through shaft hole structure, characterized in that: The inner circulation air door is connected with the outer circulation air door through a transmission mechanism, the boss on the inner and outer circulation actuators is rigidly connected with the groove on the rotating shaft of the inner circulation air door, and is fixed on the air inlet shell through a screw, the air door bolt is rigidly connected with the groove at the end of the outer circulation air door shaft through the rotating groove of the air inlet shell, and the core cover assembly is fixed inside the air inlet shell through a screw.
2. The air conditioner air inlet assembly of claim 1, wherein: The outer circulation air filter core is clamped and fixed in the groove of the filter core cover assembly, the inner circulation air filter core is fixed inside the inner circulation air inlet through a clamping groove, and the filter core cover upper cover is fixed on the filter core cover assembly through a screw.