Air inlet box of automobile air conditioner and automobile

Abstract

The utility model discloses an automobile air conditioner air inlet box and an automobile, which comprise an air inlet box shell, an outer circulation air inlet, a first inner circulation air inlet, a second inner circulation air inlet, an air outlet, a first air door, a second air door, an actuator and a transmission mechanism, the transmission mechanism is matched with a rotating shaft of the first air door and a rotating shaft of the second air door, the actuator drives the transmission mechanism to drive the rotating shaft of the first air door and the rotating shaft of the second air door to rotate, and when the first air door is located at the first position and the second air door is located at the third position, the automobile air conditioner air inlet box is in an outer circulation mode. When the first air door is located at the first position and the second air door is located at the fourth position, the air inlet box of the automobile air conditioner is in an internal air compensation mode, and when the first air door is located at the second position and the second air door is located at the fourth position, the air inlet box of the automobile air conditioner is in an internal circulation mode. The internal and external air inlet ratio stability in an internal air compensation mode can be ensured, and the cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of automobile parts, and in particular relates to an automobile air-conditioning air inlet box and an automobile. Background Art

[0002] There are two conventional air intake modes for the air intake box unit of the automobile air conditioner: internal circulation mode and external circulation mode. The internal circulation mode absorbs the air inside the car, which is conducive to cooling (or heating) the air inside the car and saves energy, but there is no fresh air supply and the air quality is prone to deterioration. The external circulation mode absorbs the air outside the car, and the air conditioning is fresh, but it is more difficult to cool (or heat) the air inside the car and consumes more energy. Therefore, it is often necessary to use the internal air compensation mode that absorbs both the inside and outside air of the car.

[0003] CN217553634U discloses an air intake box, which realizes the internal air compensation function (mode) by designing a first actuator motor to drive a first damper and a second actuator motor to drive a second damper. However, it still has the following problems: (1) Two actuator motors are required to drive two dampers respectively, which is costly; (2) The position of the first damper in the internal air compensation mode is in the middle position, and only the rotating shaft of the upper first damper has a fixed point. The middle and lower parts of the first damper are suspended in the air, which is easily affected by the external circulation wind pressure and vibrates, making it difficult to accurately control the ratio of internal and external air intake; (3) When the external circulation wind pressure is high at a high vehicle speed, the external circulation air may flow directly from the first and second internal circulation air inlets and enter the cockpit, causing the air purification system and temperature system of the air conditioner to fail. Utility Model Content

[0004] The utility model aims to provide an automobile air-conditioning air inlet box and an automobile, so as to ensure a stable ratio of internal and external air inlet in an internal air compensation mode and reduce costs.

[0005] In a first aspect, the utility model provides an air inlet box for an automobile air conditioner, which comprises an air inlet box housing, an outer circulation air inlet, a first inner circulation air inlet, a second inner circulation air inlet, an air outlet arranged on the air inlet box housing, and a first damper and a second damper rotatably arranged in the air inlet box housing. The first damper is used to open / close the outer circulation air inlet and the first inner circulation air inlet, and the second damper is used to open / close the second inner circulation air inlet. The automobile air-conditioning air inlet box also includes an actuator and a transmission mechanism. The actuator is installed outside the air-inlet box housing and is connected to the transmission mechanism. The transmission mechanism cooperates with the rotating shaft of the first air door and the rotating shaft of the second air door. The actuator drives the transmission mechanism to drive the rotating shaft of the first air door and the rotating shaft of the second air door to rotate, so that when the first air door is in the first position and the second air door is in the third position, the external circulation air inlet is opened, the first internal circulation air inlet is closed, and the second internal circulation air inlet is closed, and the automobile air-conditioning air inlet box is in the external circulation mode, so that when the first air door is in the first position and the second air door is in the fourth position, the external circulation air inlet is opened, the first internal circulation air inlet is closed, and the second internal circulation air inlet is opened, and the automobile air-conditioning air inlet box is in the internal air compensation mode, so that when the first air door is in the second position and the second air door is in the fourth position, the external circulation air inlet is closed, the first internal circulation air inlet is opened, and the second internal circulation air inlet is opened, and the automobile air-conditioning air inlet box is in the internal circulation mode.

[0006] Preferably, the transmission mechanism includes a cam plate, a first damper rocker arm, a first damper gear, a second damper rocker arm and a second damper gear. The central axis of the cam plate is mounted on an actuator, and the actuator drives the cam plate to rotate. The cam plate is provided with a first arc groove and a second arc groove near the edge thereof. One end of the first damper rocker arm is rotatably connected to the air inlet box housing, and a tooth groove is provided at the edge of the other end. A first track column is vertically arranged at the middle of the first damper rocker arm, and the first track column is inserted into the first arc groove. The first damper gear is fixed on the rotating shaft of the first damper and meshes with the tooth groove of the first damper rocker arm. One end of the second damper rocker arm is rotatably connected to the air inlet box housing, and a tooth groove is provided at the edge of the other end. A second track column is vertically arranged at the middle of the second damper rocker arm, and the second track column is inserted into the second arc groove. The second damper gear is fixed on the rotating shaft of the second damper and meshes with the tooth groove of the second damper rocker arm.

[0007] Preferably, the first half of the first arc groove is an equal arc groove and the second half is a non-equal arc groove, and the first half of the second arc groove is a non-equal arc groove and the second half is an equal arc groove.

[0008] Preferably, when the first track post is located at the starting end of the first arc-shaped slot, the second track post is located at the starting end of the second arc-shaped slot, the first damper is in the first position, and the second damper is in the third position. When the first track post is located in the middle of the first arc-shaped slot, the second track post is located in the middle of the second arc-shaped slot, the first damper is in the first position, and the second damper is in the fourth position. When the first track post is located at the terminating end of the first arc-shaped slot, the second track post is located at the terminating end of the second arc-shaped slot, the first damper is in the second position, and the second damper is in the fourth position.

[0009] Preferably, the actuator is fixed on a mounting plate, the mounting plate is located between the actuator and the cam plate, and the mounting plate is fixedly connected to the air inlet box housing.

[0010] Preferably, the first damper and the second damper are both arc-shaped dampers.

[0011] Preferably, a filter is provided in the air inlet box housing, and the filter is provided at the air outlet.

[0012] Preferably, the air inlet box housing is composed of a left housing and a right housing connected together.

[0013] Preferably, the actuator is a drive motor.

[0014] In a second aspect, the utility model also provides a car, which includes the above-mentioned car air-conditioning air inlet box.

[0015] Compared with the prior art, the utility model has the following effects:

[0016] (1) Only one actuator is used to control the first damper and the second damper through a transmission mechanism to realize the external circulation mode, the internal air compensation mode and the internal circulation mode, thereby reducing costs.

[0017] (2) In the internal air compensation mode, the first air damper is blocked between the second internal circulation air inlet and the external circulation air inlet. The position of the first air damper is the same as that of the first air damper in the external circulation. The first air damper is relatively stable and will not vibrate due to the influence of the external circulation wind pressure, thereby ensuring the stability of the ratio of internal and external air intakes in the internal air compensation mode.

[0018] (3) In the internal air compensation mode, the first damper is blocked between the second internal circulation air inlet and the external circulation air inlet. The first internal circulation air inlet is closed, the external circulation air inlet is opened, and the second internal circulation air inlet is opened, which effectively prevents the air from the external circulation air inlet from flowing out from the first internal circulation air inlet or the second internal circulation air inlet, thereby preventing the outside air from directly entering the cockpit and causing the air purification system and temperature system of the air conditioner to fail. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic structural diagram of the air inlet box of the automobile air conditioner in the embodiment of the utility model.

[0020] Figure 2 It is an exploded view of the air inlet box of the automobile air conditioner in the embodiment of the utility model.

[0021] Figure 3 It is a transmission schematic diagram in the embodiment of the utility model.

[0022] Figure 4 It is a schematic diagram of the cooperation between the transmission mechanism and the first damper and the second damper in the internal and external circulation mode in an embodiment of the utility model.

[0023] Figure 5 This is an air flow diagram in the external circulation mode in an embodiment of the present utility model.

[0024] Figure 6 It is a schematic diagram of the cooperation between the transmission mechanism and the first damper and the second damper in the internal air compensation mode in an embodiment of the utility model.

[0025] Figure 7 2 is an air flow diagram in the internal air compensation mode in an embodiment of the present utility model.

[0026] Figure 8 It is a schematic diagram of the cooperation between the transmission mechanism and the first damper and the second damper in the internal circulation mode in an embodiment of the utility model.

[0027] Fig. 9 This is an air flow diagram in the internal circulation mode in an embodiment of the present utility model. DETAILED DESCRIPTION

[0028] In order to more thoroughly understand the features and technical contents of the embodiments of the present invention, the implementation of the embodiments of the present invention is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not intended to limit the embodiments of the present invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the field of the present invention. The terms used herein are only for the purpose of describing the embodiments of the present invention and are not intended to limit the present invention.

[0030] In the following description, reference is made to “some embodiments”, which describe a subset of all possible embodiments, but it will be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0031] It should also be pointed out that the terms "first\second\third\fourth" involved in the embodiments of the present utility model are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0032] like Figures 1 to 9 As shown, the air inlet box of the automobile air conditioner in the embodiment of the utility model comprises an air inlet box housing, an outer circulation air inlet 3, a first inner circulation air inlet 4, a second inner circulation air inlet 5, an air outlet arranged on the air inlet box housing, and a first damper 1 and a second damper 2 rotatably arranged in the air inlet box housing, an actuator 7 and a transmission mechanism located outside the air inlet box housing. The first damper 1 is used to open / close the outer circulation air inlet 3 and the first inner circulation air inlet 4, and the second damper 2 is used to open / close the second inner circulation air inlet 5. The actuator 7 is installed outside the air inlet box housing and connected to the transmission mechanism. The transmission mechanism cooperates with the rotating shaft of the first damper 1 and the rotating shaft of the second damper 2, and the actuator 7 drives the transmission mechanism to drive the rotating shaft of the first damper 1 and the rotating shaft of the second damper 2 to rotate, so that when the first damper 1 is in the first position and the second damper 2 is in the third position, the external circulation air inlet 3 is opened, the first internal circulation air inlet 4 is closed, and the second internal circulation air inlet 5 is closed; when the first damper 1 is in the first position and the second damper 2 is in the fourth position, the external circulation air inlet 3 is opened, the first internal circulation air inlet 4 is closed, and the second internal circulation air inlet 5 is opened; when the first damper 1 is in the second position and the second damper 2 is in the fourth position, the external circulation air inlet 3 is closed, the first internal circulation air inlet 4 is opened, and the second internal circulation air inlet 5 is opened.

[0033] In some embodiments, the air inlet box housing is composed of a left housing 14 and a right housing 15 connected together. In some embodiments, a filter 6 is disposed in the air inlet box housing, and the filter 6 is disposed at the air outlet. In some embodiments, the actuator 7 is a drive motor. In some embodiments, the first damper 1 and the second damper 2 are both arc dampers, and the arc surface of the first damper 1 and the arc surface of the second damper 2 are substantially horizontal to the air inlet direction, and the contact area is small, and the positions of the first damper 1 and the second damper 2 will not be affected by the wind.

[0034] In some embodiments, the transmission mechanism includes a cam plate 8, a first damper rocker arm 9, a first damper gear 10, a second damper rocker arm 11, a second damper gear 12 and a mounting plate 13. The central axis 83 of the cam plate 8 passes through the through hole of the mounting plate 13 and is connected to the output shaft of the actuator 7. The actuator 7 is fixed on the mounting plate 13. The mounting plate 13 is located between the actuator 7 and the cam plate 8. The mounting plate 13 is fixedly connected to the right housing 15. The actuator 7 drives the cam plate 8 to rotate. The cam plate 8 has a first arc groove 81 and a second arc groove 82 relatively opened near the edge. The first arc groove 81 has a first half section that is an equal arc groove and a second half section that is an unequal arc groove. The second arc groove 82 has a first half section that is an unequal arc groove and a second half section that is an equal arc groove. One end of the first damper rocker arm 9 is rotatably connected to the right shell body 15, and a tooth groove is opened on the edge of the other end. A first track column 91 is vertically arranged in the middle of the first damper rocker arm 9, and the first track column 91 is inserted into the first arc groove 81. The first track column 91 can move relative to the first arc groove 81, thereby driving the first damper rocker arm 9 to rotate. The first damper gear 10 is fixed on the rotating shaft of the first damper 1 and meshes with the tooth groove of the first damper rocker arm 9. The rotation of the first damper rocker arm 9 drives the first damper gear 10 to rotate, and then drives the first damper 1 to rotate. One end of the second damper rocker arm 11 is rotatably connected to the right shell body 15, and a tooth groove is opened on the edge of the other end. A second track column 111 is vertically arranged in the middle part of the second damper rocker arm 11, and the second track column 111 is inserted into the second arc groove 82. The second track column 111 can move relative to the second arc groove 82, thereby driving the second damper rocker arm 11 to rotate. The second damper gear 12 is fixed on the rotating shaft of the second damper 2 and meshes with the tooth groove of the second damper rocker arm 11. The rotation of the second damper rocker arm 11 drives the second damper gear 12 to rotate, and then drives the second damper 2 to rotate.

[0035] In some embodiments, when the first track column 91 is located at the starting end of the first arc slot 81, the second track column 111 is located at the starting end of the second arc slot 82, the first damper 1 is in the first position, and the second damper 2 is in the third position. When the cam plate 8 rotates, the first track column 91 is located in the middle of the first arc slot 81, the second track column 111 is located in the middle of the second arc slot 82, the first damper 1 is in the first position, and the second damper 2 is in the fourth position. When the cam plate 8 rotates, the first track column 91 is located at the terminal end of the first arc slot 81, the second track column 111 is located at the terminal end of the second arc slot 82, the first damper 1 is in the second position, and the second damper 2 is in the fourth position.

[0036] like Figure 4 , Figure 5As shown, when the cam disc 8 is in the starting position of the stroke, the first track column 91 is located at the starting end of the first arc-shaped groove 81, the second track column 111 is located at the starting end of the second arc-shaped groove 82, the first damper 1 is in the first position, and the second damper 2 is in the third position. The first damper 1 closes the first internal circulation air inlet 4 and opens the external circulation air inlet 3, and the second damper 2 closes the second internal circulation air inlet 5. All air outside the vehicle enters from the external circulation air inlet 3, is filtered by the filter 6, and is sent out from the air outlet. The automobile air conditioning air inlet box is in the external circulation mode.

[0037] like Figure 6 , Figure 7 As shown, the actuator 7 drives the cam disc 8 to rotate clockwise. When the cam disc 8 rotates to the 1 / 2 stroke position, the first track column 91 is located in the middle of the first arc groove 81, and the second track column 111 is located in the middle of the second arc groove 82. Since the first half of the first arc groove 81 is an equal arc groove, the first track column 91 will not move during the rotation of the cam disc 8, and the first damper rocker arm 9, the first damper gear 10, and the first damper 1 all remain in their original positions. The first damper 1 is still in the first position, the first internal circulation air inlet 4 is in a closed state, and the external circulation air inlet 3 is in an open state. Since the first half of the second arc groove 82 is a non-equal arc groove, the second track column 111 moves during the rotation of the cam disc 8, and the movement of the second track column 111 drives the second damper rocker arm 11 to rotate, and the rotation of the second damper rocker arm 11 drives the second damper gear 12 to rotate, and the rotation of the second damper gear 12 drives the second damper 2 to rotate to the fourth position, and the second damper 2 opens the second internal circulation air inlet 5. The air in the vehicle compartment enters from the second internal circulation air inlet 5, and the air outside the vehicle compartment enters from the external circulation air inlet 3, and is sent out from the air outlet after being filtered by the filter 6. The air inlet box of the automobile air conditioner is in the internal air compensation mode. At this time, the first damper 1 blocks between the second internal circulation air inlet 5 and the external circulation air inlet 3, closes the first internal circulation air inlet 4, and can effectively prevent the air from the external circulation air inlet 3 from flowing out from the first internal circulation air inlet 4 or the second internal circulation air inlet 5.

[0038] like Figure 8 , Fig. 9As shown, the cam disc 8 continues to rotate clockwise driven by the actuator 7. When the cam disc 8 rotates to the end position of the stroke, the first track column 91 is located at the terminal end of the first arc groove 81, and the second track column 111 is located at the terminal end of the second arc groove 82. Since the second half of the first arc groove 81 is a non-uniform arc groove, during the rotation of the cam disc 8, the first track column 91 moves, and the movement of the first track column 91 drives the first damper rocker arm 9 to rotate, and the rotation of the first damper rocker arm 9 drives the first damper gear 10 to rotate, and the rotation of the first damper gear 10 drives the first damper 1 to the second position, and the first damper 1 closes the external circulation air inlet 3 and opens the first internal circulation air inlet 4. Since the second half of the second arc groove 82 is an equal arc groove, during the rotation of the cam disc 8, the second track column 111 will not move, the second damper rocker arm 11, the second damper gear 12, and the second damper 2 remain stationary, the second damper 2 is still in the fourth position, and the second internal circulation air inlet 5 is in an open state. Part of the air in the vehicle compartment enters through the first internal circulation air inlet 4, and another part of the air in the vehicle compartment enters through the second internal circulation air inlet 5, and is sent out from the air outlet after being filtered by the filter 6. The automobile air conditioning air inlet box is in the internal circulation mode.

[0039] An embodiment of the utility model further provides a car, which comprises the above-mentioned car air-conditioning air inlet box.

[0040] The above description is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention.

Claims

1. An air inlet box for an automobile air conditioner, comprising an air inlet box housing, an external circulation air inlet (3), a first internal circulation air inlet (4), a second internal circulation air inlet (5), an air outlet, and a first damper (1) and a second damper (2) rotatably arranged in the air inlet box housing; characterized in that: The air inlet (3) is a kind of air inlet device, and the air inlet (4) is a kind of air inlet device. The air inlet (5) is a kind of air inlet device, and the air inlet (6) is a kind of air inlet device. The air inlet (3) is a kind of air inlet device, and the air inlet (7) is a kind of air inlet device. The air inlet (3) is a kind of air inlet device, and the air inlet (6) is a kind of air inlet device. The air inlet (3) is a kind of air inlet device, and the air inlet (7) is a kind of air inlet device. The air inlet (3) is a kind of air inlet device, and the air inlet (6) is a kind of air inlet device. The air inlet (3) is a kind of air inlet device, and the air inlet (6) is a kind of air inlet device. The air inlet (3) is a kind of air inlet device, and the air inlet (6) is a kind of air inlet device. The air inlet (5) is a kind of air inlet device, and the air inlet (7) is a kind of air inlet device.

2. The automobile air-conditioning air inlet box according to claim 1, characterized in that: The transmission mechanism comprises a cam plate (8), a first damper rocker arm (9), a first damper gear (10), a second damper rocker arm (11) and a second damper gear (12); a central axis (83) of the cam plate (8) is mounted on an actuator (7), the actuator (7) drives the cam plate (8) to rotate, a first arc groove (81) and a second arc groove (82) are provided on the cam plate (8) near an edge thereof, one end of the first damper rocker arm (9) is rotatably connected to an air inlet box housing, a tooth groove is provided on an edge of the other end, and a middle portion of the first damper rocker arm (9) is vertically arranged A first track column (91) is provided, the first track column is inserted into the first arc groove (81), a first damper gear (10) is fixed on the rotating shaft of the first damper and meshes with the tooth groove of the first damper rocker arm (9), one end of the second damper rocker arm (11) is rotatably connected to the air inlet box housing, and a tooth groove is provided on the edge of the other end, a second track column (111) is vertically arranged in the middle of the second damper rocker arm (11), the second track column is inserted into the second arc groove (82), and a second damper gear (12) is fixed on the rotating shaft of the second damper and meshes with the tooth groove of the second damper rocker arm (11).

3. The automobile air-conditioning air inlet box according to claim 2, characterized in that: The first arc groove (81) has a front half section that is an equal arc groove and a rear half section that is an unequal arc groove, and the second arc groove (82) has a front half section that is an unequal arc groove and a rear half section that is an equal arc groove.

4. The automobile air-conditioning air inlet box according to claim 3, characterized in that: When the first track column (91) is located at the starting end of the first arc-shaped slot (81), the second track column (111) is located at the starting end of the second arc-shaped slot (82), the first damper (1) is in the first position, and the second damper (2) is in the third position; When the first track column (91) is located in the middle of the first arc-shaped slot (81), the second track column (111) is located in the middle of the second arc-shaped slot (82), the first damper (1) is in the first position, and the second damper (2) is in the fourth position; When the first track column (91) is located at the terminal end of the first arc-shaped slot (81), the second track column (111) is located at the terminal end of the second arc-shaped slot (82), the first damper (1) is in the second position, and the second damper (2) is in the fourth position.

5. The automobile air-conditioning air inlet box according to any one of claims 2 to 4, characterized in that: The actuator (7) is fixed on a mounting plate (13), the mounting plate (13) is located between the actuator (7) and the cam plate (8), and the mounting plate (13) is fixedly connected to the air inlet box housing.

6. The automobile air-conditioning air inlet box according to any one of claims 1 to 4, characterized in that: The first damper (1) and the second damper (2) are both arc-shaped dampers.

7. The automobile air conditioning air inlet box according to any one of claims 1 to 4, characterized in that: A filter (6) is arranged in the air inlet box housing, and the filter (6) is arranged at the air outlet.

8. The automobile air-conditioning air inlet box according to any one of claims 1 to 4, characterized in that: The air inlet box housing is composed of a left housing (14) and a right housing (15) connected together.

9. The automobile air conditioning air inlet box according to any one of claims 1 to 4, characterized in that: The actuator (7) is a drive motor.

10. An automobile, characterized in that: It comprises the automobile air-conditioning air inlet box as claimed in any one of claims 1 to 9.

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