A method for replenishing air inlet box of automobile air conditioner

Abstract

The invention discloses a method for replenishing air in an air inlet box of an automobile air conditioner, and relates to the technical field of automobile air conditioners. The air inlet box of the air conditioner includes an air inlet box housing and a damper. The damper uses an electromagnetic adsorption device to achieve the sealing of the inner circulation air inlet and the outer circulation air inlet. The damper is also respectively installed with an inner circulation air inlet pipe and an outer circulation air inlet pipe at one end away from the rotating shaft. The inner circulation air inlet pipe faces one side of the inner circulation air inlet, and the outer circulation air inlet pipe faces one side of the outer circulation air inlet. The inner circulation air inlet pipe and the outer circulation air inlet pipe are then connected to an intake compensation device. Compared with the traditional automobile air inlet box, the present invention removes the servo motor for rotating the damper and adds an electromagnetic adsorption device, which can make the damper fit the housing more closely and have a better sealing effect. At the same time, an intake compensation device is added, and an air inlet pipe is arranged inside the damper to connect to an external air pump, so that the air inlet box can be replenished with air through the external air pump to ensure the performance of the air conditioner.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile air conditioners, and in particular relates to an air supply method for an air inlet box of an automobile air conditioner. Background Art

[0002] As an important part of the automobile air conditioning system, the automobile air inlet box plays a role in air circulation and temperature control in the car. Its structural composition generally includes two air inlets, namely the internal circulation air inlet and the external circulation air inlet, plus an air outlet. At present, the air volume of the air outlet is restricted by the size of the internal circulation air inlet and the external circulation air inlet, and it is difficult to adjust the air volume to a large amount. Especially when there is only a front air outlet in the car, the speed of air circulation and temperature control in the car will be relatively slow, affecting the user experience. In addition, the existing damper structure in the air inlet box is mostly achieved by means of a servo motor, which occupies a certain space, has a complex structure, and the sealing effect of the damper is not ideal, which needs to be improved. Summary of the invention

[0003] The object of the present invention is to provide an air supply method for an automobile air-conditioning air inlet box to solve the above-mentioned defects caused by the prior art.

[0004] A method for replenishing air in an air inlet box of an automobile air conditioner, comprising an air inlet box housing and an air door, wherein the top of the air inlet box housing is provided with two air inlets, namely an inner circulation air inlet and an outer circulation air inlet, and the bottom of the air inlet box housing is provided with an air outlet, and a stopper cooperating with the air door is provided in the air inlet box housing between the inner circulation air inlet and the outer circulation air inlet, wherein the air door is rotatably connected to the air inlet box housing through a rotating shaft and can realize the opening and sealing of the inner circulation air inlet and the outer circulation air inlet, and the air door realizes the inner circulation air inlet by means of an electromagnetic adsorption device The sealing of the air outlet and the external circulation air inlet, the electromagnetic adsorption device includes a magnetic pole arranged on the air door, a sealing member wrapped around the outside of the magnetic pole, and an electromagnet installed on the internal circulation air inlet and the external circulation air inlet, the magnetic pole is installed on the end of the air door away from the rotating shaft, and the end of the air door away from the rotating shaft is also respectively installed with an internal circulation air inlet pipe and an external circulation air inlet pipe, the internal circulation air inlet pipe faces the side of the internal circulation air inlet, and the external circulation air inlet pipe faces the side of the external circulation air inlet, and the internal circulation air inlet pipe and the external circulation air inlet pipe are then connected to the air intake compensation device.

[0005] Preferably, the inner circulation air inlet and the outer circulation air inlet are also provided with sealing ribs that cooperate with the sealing parts on the damper, and the sealing ribs and the plane where the inner circulation air inlet and the outer circulation air inlet are located form an "L"-shaped buckle groove.

[0006] Preferably, the air intake compensation device includes an inner circulation air inlet duct, an outer circulation air inlet duct and an air pump, the inner circulation air inlet duct and the outer circulation air inlet duct are both connected to the air pump, and the air pump is respectively connected to the inner circulation air inlet pipe and the outer circulation air inlet pipe through the inner circulation air inlet air supply pipe and the outer circulation air inlet air supply pipe, and the inner circulation air inlet duct, the outer circulation air inlet duct, the inner circulation air inlet pipe and the outer circulation air inlet pipe are all provided with solenoid valves.

[0007] Preferably, sealing rings are provided at the positions where the rotating shafts at both ends of the damper cooperate with the air inlet box housing.

[0008] Preferably, the walls of the inner circulation air inlet pipe and the outer circulation air inlet pipe are both provided with a plurality of exhaust holes 1 along the length direction thereof, and the exhaust holes 1 are connected with the exhaust holes 2 on the damper.

[0009] Preferably, the sealing element is specifically a rubber encapsulation.

[0010] Preferably, the electromagnet, the air pump and the solenoid valve are all electrically connected to the controller.

[0011] The advantages of the present invention are as follows: compared with the traditional automobile air-conditioning ... BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the air inlet box housing in the present invention.

[0013] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0014] Figure 3 It is the front view of the air door in the present invention.

[0015] Figure 4 for Figure 3 Cross-sectional view along AA direction.

[0016] Figure 5 It is a schematic diagram of the intake compensation device in the present invention.

[0017] Among them, 1-air inlet box shell, 2-air door, 3-internal circulation air inlet, 4-external circulation air inlet, 5-block, 6-rotating shaft, 7-electromagnetic adsorption device, 71-magnetic pole, 72-seal, 73-electromagnet, 8-air intake compensation device, 81-internal circulation air inlet duct, 82-external circulation air inlet duct, 83-air pump, 84-internal circulation air inlet pipe, 85-external circulation air inlet pipe, 86-internal circulation air inlet air supply pipe, 87-external circulation air inlet air supply pipe, 88-exhaust hole one, 89-exhaust hole two, 9-sealing rib, 10-solenoid valve, 11-sealing ring, 12-air outlet. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] like Figures 1 to 5 As shown, a method for replenishing air in an air inlet box of an automobile air conditioner comprises an air inlet box housing 1 and a damper 2, wherein the top of the air inlet box housing 1 is provided with two air inlets, namely an inner circulation air inlet 3 and an outer circulation air inlet 4, and the bottom of the air inlet box housing 1 is provided with an air outlet 12, and a stopper 5 cooperating with the damper 2 is provided in the air inlet box housing 1 between the inner circulation air inlet 3 and the outer circulation air inlet 4, and the damper 2 is rotatably connected to the air inlet box housing 1 through a rotating shaft 6 and can realize the opening and sealing of the inner circulation air inlet 3 and the outer circulation air inlet 4, and the damper 2 realizes the inner circulation air inlet 3 and the outer circulation air inlet 4 by means of an electromagnetic adsorption device 7. The sealing of the circulating air inlet 4, the electromagnetic adsorption device 7 includes a magnetic pole 71 arranged on the damper 2, a sealing member 72 wrapped around the outside of the magnetic pole 71 and an electromagnet 73 installed on the inner circulation air inlet 3 and the outer circulation air inlet 4, the magnetic pole 71 is installed on the end of the damper 2 away from the rotating shaft 6, and the end of the damper 2 away from the rotating shaft 6 is also respectively installed with an inner circulation air inlet pipe 84 and an outer circulation air inlet pipe 85, the inner circulation air inlet pipe 84 faces the inner circulation air inlet 3, the outer circulation air inlet pipe 85 faces the outer circulation air inlet 4, the inner circulation air inlet pipe 84 and the outer circulation air inlet pipe 85 are then connected to the air intake compensation device 8.

[0020] In this embodiment, the inner circulation air inlet 3 and the outer circulation air inlet 4 are further provided with sealing ribs 9 matched with the sealing member 72 on the damper 2, and the sealing ribs 9 and the plane where the inner circulation air inlet 3 and the outer circulation air inlet 4 are located form an "L"-shaped buckle groove. With the sealing member 72, when the damper 2 rotates to the extreme position, the sealing member 72 is just stuck in the buckle groove, thereby improving the sealing performance.

[0021] In this embodiment, the air intake compensation device 8 includes an inner circulation air intake duct 81, an outer circulation air intake duct 82 and an air pump 83. The inner circulation air intake duct 81 and the outer circulation air intake duct 82 are connected to the air pump 83. The air pump 83 is connected to the inner circulation air intake pipe 84 and the outer circulation air intake pipe 85 through the inner circulation air intake air delivery pipe 86 and the outer circulation air intake air delivery pipe 87. The inner circulation air intake duct 81 and the outer circulation air intake duct 82 are connected to the inside and outside of the vehicle respectively. The inner circulation air intake duct 81, the outer circulation air intake duct 82, the inner circulation air intake pipe 84 and the outer circulation air intake pipe 85 are all provided with a solenoid valve 10, which is used to control the opening and closing of the corresponding pipelines to achieve air replenishment of different needs.

[0022] In this embodiment, sealing rings 11 are provided at the positions where the rotating shafts 6 at both ends of the damper 2 cooperate with the air inlet box housing 1. The presence of the sealing ring 11 increases the friction of the damper 2 when it rotates, and can prevent the damper 2 from rotating back due to the wind in the flow channel after reaching the sealing position, thereby avoiding the wind from blowing inside the air channel. It can also absorb the axial and radial shaking of the damper 2 caused by manufacturing and assembly errors.

[0023] In this embodiment, the walls of the inner circulation air inlet pipe 84 and the outer circulation air inlet pipe 85 are both provided with a plurality of exhaust holes 88 along their length directions, and the exhaust holes 88 are connected to the exhaust holes 89 on the damper 2.

[0024] In this embodiment, the sealing member 72 is specifically a rubber package.

[0025] In this embodiment, the electromagnet 73, the air pump 83 and the electromagnetic valve 10 are all electrically connected to the controller. The controller can be connected to the vehicle computer system to facilitate the operation of passengers.

[0026] Working process and principle of the present invention:

[0027] The switching of the damper 2 is realized by the electromagnetic adsorption device 7. By changing the positive and negative poles of the input current of the electromagnet 73, the positive and negative directions of the electromagnetic force can be switched, thereby realizing the rapid switching of the damper 2 between the internal circulation and the external circulation. The outer side of the damper 2 is designed with a rubber bag, which can cooperate with the buckle groove of the shell to play a sealing role. The sealing effect of the buckle groove is better than the end face sealing effect formed by the existing sponge, and can also avoid the occurrence of air leakage caused by the poor sealing of the end face seal.

[0028] The method of replenishing air is as follows:

[0029] When the vehicle is in the internal circulation mode, if air replenishment is required, the solenoid valve 10 at the internal circulation air inlet duct 81 and the internal circulation air inlet pipe 86 is opened, and the solenoid valve 10 at the external circulation air inlet duct 82 and the external circulation air inlet pipe 87 is closed, and the air pump 83 is started. The air pump 83 introduces the air in the vehicle into the internal circulation air inlet pipe 84 and discharges it to the vehicle, thereby achieving the purpose of internal circulation air replenishment.

[0030] When the outside of the vehicle is in the external circulation mode, if air replenishment is needed, open the solenoid valve 10 at the external circulation air inlet duct 82 and the external circulation air inlet pipe 87, close the solenoid valve 10 at the internal circulation air inlet duct 81 and the internal circulation air inlet pipe 86, start the air pump 83, and the air pump 83 introduces the air outside the vehicle into the external circulation air inlet pipe 85 and discharges it to the inside of the vehicle, thereby achieving the purpose of external circulation air replenishment.

[0031] Compared with the traditional automobile air-conditioning air inlet box, the present invention removes the servo motor for the rotary damper 2 and adds an electromagnetic adsorption device 7, which can make the damper 2 fit the shell more closely and have a better sealing effect. At the same time, an intake compensation device 8 is added, and an air intake pipe is arranged inside the damper 2 to connect the external air pump 83, so that the air inlet box can be replenished with air through the external air pump 83 to ensure the air conditioning performance. At the same time, a reverse force will be formed while replenishing the air, which helps the damper 2 to press the shell tightly and improve the sealing effect.

[0032] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A method for replenishing air in an air inlet box of an automobile air conditioner, the air inlet box of the air conditioner comprising an air inlet box shell (1) and a damper (2), the top of the air inlet box shell (1) being provided with two air inlets, namely an inner circulation air inlet (3) and an outer circulation air inlet (4), the bottom of the air inlet box shell (1) being provided with an air outlet (12), a block (5) cooperating with the damper (2) being provided in the air inlet box shell (1) between the inner circulation air inlet (3) and the outer circulation air inlet (4), the damper (2) being rotatably connected to the air inlet box shell (1) via a rotating shaft (6) and being capable of realizing the opening and sealing of the inner circulation air inlet (3) and the outer circulation air inlet (4), characterized in that: The damper (2) is sealed at the inner circulation air inlet (3) and the outer circulation air inlet (4) by means of an electromagnetic adsorption device (7). The electromagnetic adsorption device (7) comprises a magnetic pole (71) arranged on the damper (2), a sealing member (72) wrapped around the outer side of the magnetic pole (71), and an electromagnet (73) installed at the inner circulation air inlet (3) and the outer circulation air inlet (4). The magnetic pole (71) is installed at one end of the damper (2) away from the rotating shaft (6). An inner circulation air inlet pipe (84) and an outer circulation air inlet pipe (85) are also installed at one end of the damper (2) away from the rotating shaft (6). The inner circulation air inlet pipe (84) faces the inner circulation air inlet (3) and the outer circulation air inlet pipe (85) faces the outer circulation air inlet (4). The inner circulation air inlet pipe (84) and the outer circulation air inlet pipe (85) are connected to an air intake compensation device (8). The inner circulation air inlet (3) and the outer circulation air inlet (4) are also provided with sealing ribs (9) that match the sealing member (72) on the damper (2), and the sealing ribs (9) and the planes where the inner circulation air inlet (3) and the outer circulation air inlet (4) are located form an "L"-shaped buckle groove; The air intake compensation device (8) comprises an inner circulation air intake duct (81), an outer circulation air intake duct (82) and an air pump (83); the inner circulation air intake duct (81) and the outer circulation air intake duct (82) are both connected to the air pump (83); the air pump (83) is further connected to the inner circulation air intake pipe (84) and the outer circulation air intake pipe (85) through the inner circulation air intake pipe (86) and the outer circulation air intake pipe (87); the inner circulation air intake duct (81), the outer circulation air intake duct (82), the inner circulation air intake pipe (86) and the outer circulation air intake pipe (87) are all provided with electromagnetic valves (10); The air supply method of the air inlet box of the air conditioner is specifically as follows: By changing the positive and negative poles of the input current of the electromagnet (73), the positive and negative directions of the electromagnetic force are switched, thereby realizing the rapid switching of the damper (2) between the internal circulation and the external circulation; When the vehicle is in the internal circulation mode and needs to be supplemented with air, the electromagnetic valve (10) at the internal circulation air inlet duct (81) and the internal circulation air inlet air delivery pipe (86) is opened, the electromagnetic valve (10) at the external circulation air inlet duct (82) and the external circulation air inlet air delivery pipe (87) is closed, and the air pump (83) is started. The air pump (83) introduces the air in the vehicle into the internal circulation air inlet pipe (84) and discharges it into the vehicle, thereby completing the internal circulation air supplement; When the vehicle is in the external circulation mode and air replenishment is required, the electromagnetic valve (10) at the external circulation air inlet duct (82) and the external circulation air inlet pipe (87) is opened, the electromagnetic valve (10) at the internal circulation air inlet duct (81) and the internal circulation air inlet pipe (86) is closed, and the air pump (83) is started. The air pump (83) introduces the air outside the vehicle into the external circulation air inlet pipe (85) and discharges it to the inside of the vehicle, thereby completing the external circulation air replenishment.

2. The air supply method for an automobile air-conditioning air inlet box according to claim 1, characterized in that: Sealing rings (11) are also provided at the positions where the rotating shafts (6) at both ends of the damper (2) cooperate with the air inlet box housing (1).

3. The air supply method for an automobile air-conditioning air inlet box according to claim 1, characterized in that: The walls of the inner circulation air inlet pipe (84) and the outer circulation air inlet pipe (85) are both provided with a plurality of exhaust holes (88) along their lengths, and the exhaust holes (88) are connected to the exhaust holes (89) on the damper (2).

4. The air supply method for an automobile air-conditioning air inlet box according to claim 1, characterized in that: The sealing element (72) is specifically a rubber coating.

5. The air supply method for an automobile air-conditioning air inlet box according to claim 1, characterized in that: The electromagnet (73), the air pump (83) and the electromagnetic valve (10) are all electrically connected to the controller.

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