Automobile air conditioner air inlet device capable of preventing air mixing

By designing an anti-cross-flow automotive air conditioning intake device, and utilizing the cooperation of the fresh air damper, the circulation damper, and the limit bearing, the problem of fresh air directly rushing into the cabin in external circulation mode is solved, thereby improving heating and cooling efficiency and ensuring that there is no cross-flow between fresh air and circulating air.

CN224103823UActive Publication Date: 2026-04-10SHANGHAI AIR CONDITIONING INT NANTONG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-13
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

In external circulation mode, fresh air is directly convected into the cabin without passing through the blower, affecting the heating and cooling efficiency of the passenger cabin, a problem that current technology cannot effectively solve.

Method used

Design an anti-cross-flow automotive air conditioning intake device, comprising a main mechanism and an auxiliary mechanism. Through the cooperation of a fresh air damper, an anti-cross-flow damper, and first and second recirculation dampers, three intake ratio adjustment modes are achieved. Combined with a limit bearing to restrict the range of motion of the dampers, it ensures that there is almost no cross-flow between fresh air and recirculation air.

Benefits of technology

It achieves almost no cross-flow between fresh air and recirculated air at different vehicle speeds, improving the heating and cooling efficiency of the passenger cabin and making the structure more reasonable.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the technical field of automobile air conditioners, and discloses an anti-air-mixing automobile air conditioner air inlet device which comprises a main body mechanism and an auxiliary mechanism, the auxiliary mechanism is located outside the main body mechanism, the main body mechanism comprises an air inlet box shell and a fresh air door, and the fresh air door is fixedly arranged at the right end of the air inlet box shell. According to the air inlet device of the automobile air conditioner capable of preventing air mixing, the following three air inlet proportion adjusting modes can be achieved through the matched opening degrees of the fresh air door, the air mixing preventing air door, the first circulating air door and the second circulating air door, when the fresh air door and the movable baffle are opened and other air doors are closed, the mode of the device is a full fresh air mode, and the air mixing preventing air mixing is achieved. When the fresh air door is closed and other air doors are opened, the device is in a full-circulation air mode, when the movable baffle is closed and other air doors are opened, the device is in a fresh air and circulation air stepless proportion adjusting mode, and when the design is in the proportion adjusting mode, it can be guaranteed that no air mixing exists between fresh air and circulation air regardless of the vehicle speed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile air conditioner, concretely is a kind of automobile air conditioner air inlet device of anti-wind. BACKGROUND

[0002] Now most of the travel will use car as transport tool, and under the condition of high speed, too large wind pressure will cause fresh air not to pass through blower directly in outside circulation mode Convective to cabin, which will cause great influence on heating and cooling efficiency of passenger cabin, and this is the criticism of most current automobile air conditioning products, and most air conditioner box products also cannot meet the stepless proportional regulation of customer end to fresh air and outside circulation air volume under calibration condition.

[0003] Prior art CN217917523U, the patent proposes a kind of automobile air conditioner inside and outside circulation air inlet device, small volume, simple structure, inside and outside circulation air inlet mode conversion control is realized by one actuator, improves the reliability of the operation of ontology, realizes the new demand of customer about air conditioner filter core replaceable and disassembly on the basis of the outside air inlet of air conditioner front and simultaneously can inside air inlet circulation.

[0004] Prior art is usually used, and fresh air does not pass through blower directly in outside circulation mode Convective to cabin, which will cause great influence on heating and cooling efficiency of passenger cabin, and the experience is poor. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of automobile air conditioner air inlet device of anti-wind to solve the problem that fresh air does not pass through blower directly in outside circulation mode Convective to cabin in the above background art, which will cause great influence on heating and cooling efficiency of passenger cabin.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of automobile air conditioner air inlet device of anti-wind, including main body mechanism and auxiliary mechanism, the auxiliary mechanism is located at the outside of main body mechanism, the main body mechanism includes air inlet box shell, fresh air door, anti-wind door and first circulation air door, the fresh air door is fixedly arranged at the right end of air inlet box shell, the anti-wind door is movably installed at the left end of fresh air door, the first circulation air door is fixedly arranged at the upper end of air inlet box shell.

[0007] Preferably, the main body mechanism further includes second circulation air door, filter cover plate, air cleaner, air inlet sealing sponge and movable baffle, the second circulation air door is fixedly arranged at the left end of air inlet box shell.

[0008] Preferably, the filter cover is movably installed on the left end of the air inlet housing, the air filter is fixedly installed on the lower end of the air inlet housing, the air inlet sealing sponge is fixedly installed on the right end of the air inlet housing, and the movable baffle is movably installed on the left end of the fresh air damper.

[0009] Preferably, the auxiliary mechanism includes a bottom mounting sleeve, a bottom docking plate, a first circulation barrier plate, a second circulation barrier plate, a first limit bearing, a second limit bearing, a third limit bearing, and a fourth limit bearing, wherein the bottom mounting sleeve is fixedly installed at the lower end of the air inlet box housing.

[0010] Preferably, the bottom connecting plate is fixedly installed at the lower end of the bottom mounting sleeve, the first circulation barrier plate is movably installed at the inner end of the first circulation damper, and the second circulation barrier plate is movably installed at the inner end of the second circulation damper. The first and second circulation barrier plates can be rotated to seal the first and second circulation dampers.

[0011] Preferably, the first limiting bearing is fixedly installed at the fixed end of the movable baffle, the second limiting bearing is fixedly installed at the fixed end of the fresh air damper, the third limiting bearing is fixedly installed at the fixed end of the first circulation barrier plate, and the fourth limiting bearing is fixedly installed at the fixed end of the second circulation barrier plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This anti-cross-flow automotive air conditioning intake device, through the installation of the main structure, allows the device to achieve the following three intake ratio adjustment modes during use by coordinating the opening of the fresh air damper, the anti-cross-flow damper, the first recirculation damper, and the second recirculation damper: when the fresh air damper and the movable baffle are open and the other dampers are closed, the device is in 100% fresh air mode; when the fresh air damper is closed and the other dampers are open, the device is in full recirculation mode; and when the movable baffle is closed and the other dampers are open, the device is in stepless ratio adjustment mode for fresh air and recirculation air. In the ratio adjustment mode, this design can ensure that there is almost no cross-flow between fresh air and recirculation air regardless of vehicle speed.

[0014] 2. The anti-cross-flow automotive air conditioning intake device, by installing an auxiliary mechanism, allows the device to limit the range of motion of the fresh air damper, anti-cross-flow damper, first circulation damper, and second circulation damper during use through the first limit bearing, second limit bearing, third limit bearing, and fourth limit bearing, making the structure of the device more reasonable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure One ;

[0016] Figure 2 For the three-dimensional structure of the utility model Figure Two

[0017] Figure 3 For the cross section structure of the utility model

[0018] Figure 4 For the main body mechanism of the utility model local detail enlarged structure schematic view.

[0019] In the drawing: 1, main body mechanism; 101, air inlet box shell; 102, fresh air door; 103, anti-wind door; 104, first circulating air door; 105, second circulating air door; 106, filter cover plate; 107, air cleaner; 108, air inlet sealing sponge; 109, movable baffle; 2, auxiliary mechanism; 201, bottom mounting sleeve; 202, bottom butt joint plate; 203, first circulating blocking plate; 204, second circulating blocking plate; 205, first limit bearing; 206, second limit bearing; 207, third limit bearing; 208, fourth limit bearing. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figure 1 Figure 4 The utility model provides a kind of technical scheme: an anti-wind automobile air conditioner air inlet device, including main body mechanism 1 and auxiliary mechanism 2, auxiliary mechanism 2 is located at the outside of main body mechanism 1, main body mechanism 1 includes air inlet box shell 101, fresh air door 102, anti-wind door 103 and first circulating air door 104, fresh air door 102 is fixedly arranged at the right end of air inlet box shell 101, anti-wind door 103 is movably installed at the left end of fresh air door 102, first circulating air door 104 is fixedly arranged at the upper end of air inlet box shell 101.

[0022] ​​The main body mechanism 1 further comprises a second circulating air door 105, a filter cover plate 106, an air filter 107, an air inlet sealing sponge 108 and a movable baffle 109, the second circulating air door 105 is fixedly arranged at the left end of the air inlet box shell 101, the filter cover plate 106 is movably installed at the left end of the air inlet box shell 101, the air filter 107 is fixedly installed at the lower end of the air inlet box shell 101, the air inlet sealing sponge 108 is fixedly arranged at the right end of the air inlet box shell 101, and the movable baffle 109 is movably installed at the left end of the fresh air door 102, when the device is in use, through the cooperation of the opening degrees of the fresh air door 102, the anti-wind leakage door 103, the first circulating air door 104 and the second circulating air door 105, the following three air inlet proportion adjustment modes can be realized, when the fresh air door 102 and the movable baffle 109 are opened and the other doors are closed, the mode of the device is a full fresh air mode, when the fresh air door 102 is closed and the other doors are opened, the device is a full circulating air mode, and when the movable baffle 109 is closed and the other doors are opened, the device is a stepless proportion adjustment mode of fresh air and circulating air, and the design can ensure that there is almost no wind leakage between fresh air and circulating air in the proportion adjustment mode.

[0023] The auxiliary mechanism 2 comprises a bottom mounting sleeve 201, a bottom butt joint plate 202, a first circulating blocking plate 203, a second circulating blocking plate 204, a first limiting bearing 205, a second limiting bearing 206, a third limiting bearing 207 and a fourth limiting bearing 208, the bottom mounting sleeve 201 is fixedly installed at the lower end of the air inlet box shell 101, the bottom butt joint plate 202 is fixedly installed at the lower end of the bottom mounting sleeve 201, the first circulating blocking plate 203 is movably installed at the inner end of the first circulating air door 104, the second circulating blocking plate 204 is movably installed at the inner end of the second circulating air door 105, the first circulating blocking plate 203 and the second circulating blocking plate 204 can be rotated to seal the first circulating air door 104 and the second circulating air door 105, the first limiting bearing 205 is fixedly arranged at the fixed end of the movable baffle 109, the second limiting bearing 206 is fixedly arranged at the fixed end of the fresh air door 102, the third limiting bearing 207 is fixedly arranged at the fixed end of the first circulating blocking plate 203, and the fourth limiting bearing 208 is fixedly arranged at the fixed end of the second circulating blocking plate 204, when the device is in use, the first limiting bearing 205, the second limiting bearing 206, the third limiting bearing 207 and the fourth limiting bearing 208 can limit the activity range of the fresh air door 102, the anti-wind leakage door 103, the first circulating air door 104 and the second circulating air door 105, so that the structure of the device is more reasonable.

[0024] Working principle: the device in use, through the fresh air damper 102 and the cooperation of the anti-wind door 103, the first circulating air door 104 and the second circulating air door 105, can realize the following three kinds of air inlet ratio adjustment mode, when the fresh air damper 102 and the movable baffle 109 open and other air door close, the mode of the device is full fresh air mode, when the fresh air damper 102 closes and other air door opens, the device is full circulating air mode, when the movable baffle 109 closes and other air door opens, the device is new air and circulating air stepless ratio adjustment mode, the design can ensure that there is almost no wind between the fresh air and the circulating air in the ratio adjustment mode, the device in use, through the first limiting bearing 205, the second limiting bearing 206, the third limiting bearing 207 and the fourth limiting bearing 208, can limit the activity range of the fresh air damper 102, the anti-wind door 103, the first circulating air door 104 and the second circulating air door 105, so that the structure of the device is more reasonable.

[0025] Finally, it should be noted that the above content is only used to illustrate the technical scheme of the present application, and is not a limitation on the protection scope of the present application. Simple modifications or equivalent replacements of the technical scheme of the present application by ordinary skilled in the art do not deviate from the essence and scope of the technical scheme of the present application.

Claims

1. An automobile air conditioner air inlet device capable of preventing wind from being mixed, comprising a main mechanism (1) and an auxiliary mechanism (2), characterized in that: The auxiliary mechanism (2) is located outside the main body mechanism (1), the main body mechanism (1) includes an air inlet box shell (101), a fresh air door (102), an anti-wind door (103) and a first circulating air door (104), the fresh air door (102) is fixedly arranged at the right end of the air inlet box shell (101), the anti-wind door (103) is movably mounted at the left end of the fresh air door (102), and the first circulating air door (104) is fixedly arranged at the upper end of the air inlet box shell (101).

2. The wind leakage preventing automobile air conditioning air inlet device according to claim 1, characterized in that: The main body mechanism (1) further comprises a second circulating air door (105), a filter cover plate (106), an air filter (107), an air inlet sealing sponge (108) and a movable baffle (109), and the second circulating air door (105) is fixedly arranged at the left end of the air inlet box shell (101).

3. The wind leakage preventing automobile air conditioning air inlet device according to claim 2, characterized in that: The filter cover plate (106) is movably mounted at the left end of the air inlet box shell (101), the air filter (107) is fixedly mounted at the lower end of the air inlet box shell (101), the air inlet sealing sponge (108) is fixedly arranged at the right end of the air inlet box shell (101), and the movable baffle (109) is movably mounted at the left end of the fresh air door (102).

4. The wind leakage preventing automobile air conditioning air inlet device according to claim 3, characterized in that: The auxiliary mechanism (2) comprises a bottom mounting sleeve (201), a bottom butt joint plate (202), a first circulating blocking plate (203), a second circulating blocking plate (204), a first limiting bearing (205), a second limiting bearing (206), a third limiting bearing (207) and a fourth limiting bearing (208), and the bottom mounting sleeve (201) is fixedly mounted at the lower end of the air inlet box shell (101).

5. The wind leakage preventing automobile air conditioning air inlet device according to claim 4, characterized in that: The bottom butt joint plate (202) is fixedly mounted at the lower end of the bottom mounting sleeve (201), the first circulating blocking plate (203) is movably mounted at the inner end of the first circulating air door (104), the second circulating blocking plate (204) is movably mounted at the inner end of the second circulating air door (105), and the first circulating blocking plate (203) and the second circulating blocking plate (204) can be rotated to seal the first circulating air door (104) and the second circulating air door (105).

6. The wind leakage preventing automobile air conditioning air inlet device according to claim 5, characterized in that: The first limiting bearing (205) is fixedly arranged at the fixed end of the movable baffle (109), the second limiting bearing (206) is fixedly arranged at the fixed end of the fresh air door (102), the third limiting bearing (207) is fixedly arranged at the fixed end of the first circulating blocking plate (203), and the fourth limiting bearing (208) is fixedly arranged at the fixed end of the second circulating blocking plate (204).