CN220031656U

CN220031656U - Air conditioner air inlet structure with adjustable internal and external circulation air inlet proportion and automobile

Info

Publication number: CN220031656U
Application number: CN202321570114.0U
Authority: CN
Inventors: 何祥林
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2023-06-19
Filing date: 2023-06-19
Publication date: 2023-11-17
Anticipated expiration: 2033-06-19

Abstract

The utility model discloses an air conditioner air inlet structure with an adjustable internal and external circulation air inlet proportion and an automobile, which comprises a shell, an actuator, a cam disc, a first connecting rod mechanism and a second connecting rod mechanism, wherein an internal circulation air inlet and an external circulation air inlet are formed in the shell; the front and back sides of the cam disc are respectively provided with a first track groove and a second track groove; the first connecting rod mechanism is connected between the first track groove and a first air door for opening and closing the internal circulation air inlet; the second connecting rod mechanism is connected between the second track groove and a second air door for opening and closing the external circulation air inlet. The cam disc controls the opening and closing angles of the first air door and the second air door respectively through the first connecting rod mechanism and the second connecting rod mechanism, and adjusts the opening and closing degree of the inner and outer circulating air inlets, so that the inner and outer circulating air inlet proportion is adjusted by controlling the opening and closing angles of the inner and outer circulating doors, and the air conditioner of the automobile can flexibly cope with various use scenes.

Description

Air conditioner air inlet structure with adjustable internal and external circulation air inlet proportion and automobile

Technical Field

The utility model relates to the technical field of automobile air conditioners, in particular to an air conditioner air inlet structure with an adjustable internal and external circulation air inlet proportion and an automobile.

Background

The air circulation mode of the automobile air conditioner generally comprises an inner circulation mode and an outer circulation mode, and when the air conditioner inner and outer circulation air door is in a complete inner circulation state, better refrigerating or heating effect can be obtained, but the air circulation mode is not beneficial to the update of the air in the automobile; when the air conditioner internal and external circulation air door is in a complete external circulation state, the air in the vehicle can be maintained to be clean, and the front-end glass is ensured not to be fogged, but when the air conditioner internal and external circulation air door is in a complete external circulation state, a large amount of air enters the vehicle, the effect of temperature regulation in the vehicle is affected, and electricity and oil are wasted. The existing air conditioner is usually provided with a compensation air port at the lower part of an external circulation air port, and part of warm air in a vehicle is mixed with external circulation air inlet to enter the air conditioner in a heating mode of the air conditioner, so that the temperature of the air inlet is increased, and the heating performance is finally improved.

However, because the air inlet quantity of the compensation air inlet in the existing air conditioner is only influenced by the speed and the internal and external pressure difference of the automobile, the internal and external circulation air inlet proportion is uncontrollable, and when the internal circulation air inlet proportion is large, the front gear is easy to generate fog to influence the visual field of a driver; when the proportion of the internal circulation air intake is small, the heating performance cannot be effectively improved; and when the air conditioner is not opened, cold air outside the vehicle is easy to directly enter the vehicle through the compensation air port, so that the comfort level of the environment in the vehicle is influenced. In short, the existing air conditioner cannot flexibly adapt to the actual use situation of the vehicle.

Accordingly, improvements and developments are needed in the art.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide an air conditioner air inlet structure with adjustable internal and external circulation air inlet proportion and an automobile, which are used for solving the technical problems that the internal and external circulation air inlet proportion of an air inlet of the existing automobile air conditioner is not adjustable and is difficult to adapt to actual use scenes.

The technical scheme adopted by the utility model for solving the problems is as follows:

an air conditioner air inlet structure with adjustable internal and external circulation air inlet proportion, which comprises:

the shell is internally hollow and is provided with an inner cavity, and the shell is provided with an inner circulation air inlet and an outer circulation air inlet which are communicated with the inner cavity;

the actuator is arranged on the shell;

the cam disc is arranged on the output shaft of the actuator; the front and back sides of the cam disc are respectively provided with a first track groove and a second track groove;

the first connecting rod mechanism is rotatably arranged on the shell, one end of the first connecting rod mechanism extends into the first track groove, the other end of the first connecting rod mechanism extends into the inner cavity and is provided with a first air door, and the first air door is used for opening and closing the inner circulation air inlet;

the second connecting rod mechanism is rotatably arranged on the shell, one end of the second connecting rod mechanism extends into the second track groove, the other end of the second connecting rod mechanism extends into the inner cavity and is provided with a second air door, and the second air door is used for opening and closing the external circulation air inlet.

According to the technical means, the embodiment of the utility model can control the rotation of the first air door and the second air door, so that the air inlet proportion of the inner circulation air inlet and the outer circulation air inlet is adjustable, the comfort environment in the vehicle is maintained, and the effects of improving the heating performance and avoiding the fog of the front windshield are achieved.

Optionally, in an embodiment of the present utility model, the first track groove and the second track groove are both C-shaped; and the first track groove and the second track groove are arranged on the cam disc in a staggered way.

According to the technical means, the two C-shaped track grooves are arranged in a staggered mode, so that the cam disc synchronously drives the first connecting rod mechanism and the second connecting rod mechanism when rotating, and the first air door and the second air door rotate simultaneously, the operation is convenient, the operation of adjusting the internal and external circulation air inlet proportion is simplified, and the adjustment flexibility is improved.

Optionally, in an embodiment of the present utility model, the first track groove is formed by connecting an inner circulation full-open arc section, an inner circulation half-open arc section and an inner circulation full-closed arc section with different curvature radii; the inner circulation full-open arc section, the inner circulation half-open arc section and the inner circulation full-closed arc section are arranged around the cam disc and gradually extend from the circle center of the cam disc to the edge of the cam disc;

the second track groove is formed by connecting an outer circulation full-open arc section, an outer circulation half-open arc section and an outer circulation full-closed arc section which are different in curvature radius; the outer circulation fully-opened arc section, the outer circulation half-opened arc section and the outer circulation fully-closed arc section are arranged around the cam disc and gradually extend from the edge of the cam disc to the circle center of the cam disc.

According to the technical means, the first track groove and the second track groove are formed by arranging the plurality of arc-shaped sections with different curvature radiuses, so that different opening and closing angles are conveniently selected in the rotation process of the first air door and the second air door, a plurality of different internal and external circulation air inlet proportions can be further adjusted, and the air inlet flexibility of the air conditioner air inlet structure is further improved.

Optionally, in an embodiment of the present utility model, a compensation air inlet parallel to the inner circulation air inlet is provided on the housing, and the second air door rotates back and forth between the compensation air inlet and the outer circulation air inlet, so as to adjust the opening and closing ratio of the compensation air inlet and the outer circulation air inlet.

According to the technical means, the air inlet of the air conditioner is provided with the compensation air inlet to the air inlet structure of the air conditioner, and the air inlet quantity of the compensation air inlet and the air inlet quantity of the external circulation air inlet are controlled through the second air door, so that the air inlet proportion of the air inlet of the air conditioner is flexibly adjusted, the total air inlet quantity is unchanged, and the working efficiency of the air conditioner is ensured while the air inlet proportion of the internal and external circulation air is adjusted.

Optionally, in an embodiment of the present utility model, the first link mechanism includes a first L-shaped link and a first rocker arm, a corner of the first L-shaped link is provided with a first connecting column, the first connecting column is rotatably disposed on the housing, one end of the first L-shaped link is slidably disposed in the first track groove, the other end of the first L-shaped link is connected with the first rocker arm, and the other end of the first rocker arm facing away from the first L-shaped link is connected with the rotating shaft of the first damper;

the second connecting rod mechanism comprises a second L-shaped connecting rod and a second rocker arm, a second connecting column is arranged at the corner of the second L-shaped connecting rod, the second connecting column is rotatably arranged on the shell, one end of the second L-shaped connecting rod is slidably arranged in the second track groove, the other end of the second L-shaped connecting rod is connected with the second rocker arm, and the other end of the second rocker arm, which is away from the second L-shaped connecting rod, is connected with a rotating shaft of the second air door.

According to the technical means, the first L-shaped connecting rod and the first rocker arm, the second L-shaped connecting rod and the second rocker arm which are purely mechanically driven are arranged, so that the control process of driving the first air door and the second air door to rotate by the actuator is accurate and efficient, and noise is low.

Optionally, in an embodiment of the present utility model, a first slider is protruding on the first L-shaped connecting rod, and the first slider is spliced with the first track groove; a first toggle groove is formed in the first L-shaped connecting rod, one end of the first rocker arm is inserted into the first toggle groove, and the other end of the first rocker arm is connected with the shaft side of the first air door through a spline;

a second sliding head is arranged on the second L-shaped connecting rod in a protruding mode, and the second sliding head is spliced with the second track groove; the second L-shaped connecting rod is provided with a second toggle groove, one end of the second rocker arm is inserted into the first toggle groove, and the other end of the second rocker arm is connected with the shaft side of the second air door through a spline.

According to the technical means, the first slider slides in the first track groove, so that the first L-shaped connecting rod is abutted with the cam disc, and the effect of accurate transmission connection is achieved; the second slider is arranged to slide in the second track groove, so that the second L-shaped connecting rod is abutted with the cam disc, and the effect of accurate transmission connection is achieved.

Optionally, in one embodiment of the present utility model, a first sealing layer is disposed on a side of the first damper facing the inner circulation air inlet; and a second sealing layer is arranged on one side of the second air door, which faces the external circulation air inlet.

According to the technical means, the sealing layer is arranged, so that the sealing effect is better when the first air door and the second air door are in contact with the shell, and the air leakage condition under the condition that the air doors are closed is avoided.

Optionally, in an embodiment of the present utility model, a grid structure is disposed at the inner circulation air inlet, and a cell shape of the grid structure is a regular polygon.

According to the technical means, the internal circulation air inlet is manufactured by arranging the grid structure composed of the regular polygon unit cells with stable structure and good supporting effect, so that the stability of the air inlet structure of the air conditioner can be improved, sundries are filtered, and the sundries are prevented from entering the air inlet structure of the air conditioner.

Optionally, in an embodiment of the present utility model, a sealing ring is disposed on the housing around the external circulation air inlet.

According to the technical means, the sealing ring is arranged, so that the air inlet structure of the air conditioner forms a seal with the sheet metal of the vehicle body when the air inlet structure of the air conditioner is assembled on the vehicle body, and air leakage at the air inlet of the external circulation is prevented.

The utility model also discloses an automobile, wherein the automobile body of the automobile is provided with the air conditioner air inlet structure with the adjustable internal and external circulation air inlet proportion.

According to the technical means, the air inlet structure of the air conditioner with the adjustable internal and external circulation air inlet proportion is arranged on the automobile body of the automobile, so that the air inlet proportion of the interior environment of the automobile is adjustable, various driving occasions can be flexibly dealt with, the energy consumption of the automobile is reduced, and the heating performance is improved.

In summary, the beneficial effects of the utility model are as follows:

according to the air conditioner air inlet structure with the adjustable internal and external circulation air inlet proportion, the actuator controls the cam disc to rotate, the cam disc controls the opening and closing angles of the first air door and the second air door respectively through the first connecting rod mechanism and the second connecting rod mechanism, and the opening and closing degree of the internal circulation air inlet and the external circulation air inlet is adjusted, so that the effect of adjusting the internal and external circulation air inlet proportion is achieved, the heating performance of the air conditioner is effectively improved, the problem that front-grade windscreen is fogged in the driving process or a large amount of cold air flows into a passenger cabin through the external circulation air inlet is avoided, and the capability of flexibly adapting to various use scenes of a vehicle is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will briefly explain the embodiments or the drawings needed in the prior art, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an air conditioner air inlet structure with adjustable internal and external circulation air inlet proportion in the utility model;

FIG. 2 is a schematic diagram of a part of an air inlet structure of an air conditioner with an adjustable internal and external circulation air inlet proportion in the utility model;

FIG. 3 is a schematic view of the first and second linkages of the present utility model;

FIG. 4 is a schematic view of the structure of the first L-shaped link and the second L-shaped link in the present utility model;

FIG. 5 is a schematic diagram of a first track groove according to the present utility model;

fig. 6 is a schematic structural diagram of a second track groove in the present utility model.

Wherein: 100. a housing; 110. an internal circulation air inlet; 120. an external circulation air inlet; 200. an actuator; 300. a cam plate; 310. a first track groove; 320. a second track groove; 400. a first link mechanism; 410. a first L-shaped link; 420. a first rocker arm; 500. a second link mechanism; 510. a second L-shaped link; 520. a second rocker arm; 600. a first damper; 610. a first sealing layer; 700. a second damper; 710, a second sealing layer; 800. a grid structure; 900. a seal ring; 1000. compensating the air inlet.

Detailed Description

In order to enable those skilled in the art to better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, other embodiments that may be obtained by those of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.

Referring to fig. 1, fig. 2, fig. 3, fig. 5 and fig. 6, in an embodiment of the present utility model, an air intake structure of an air conditioner with an adjustable internal and external circulation air intake ratio is disclosed, which includes a housing 100, an actuator 200, a cam plate 300, a first link mechanism 400 and a second link mechanism 500, an inner cavity is formed in the housing 100, and an internal circulation air intake 110 and an external circulation air intake 120 which are communicated with the inner cavity are provided on the housing 100; the actuator 200 is disposed on the housing 100; the cam plate 300 is provided on the output shaft of the actuator 200; the front and back sides of the cam plate 300 are respectively provided with a first track groove 310 and a second track groove 320; the first link mechanism 400 is rotatably disposed on the housing 100, one end of the first link mechanism 400 extends into the first track groove 310, the other end extends into the inner cavity and is provided with a first air door 600, and the first air door 600 is used for opening and closing the inner circulation air inlet 110; the second linkage 500 is rotatably disposed on the housing 100, one end of the second linkage 500 extends into the second track groove 320, the other end extends into the inner cavity and is provided with a second air door 700, and the second air door 700 is used for opening and closing the external circulation air inlet 120.

In this embodiment, the controller for controlling the actuator 200 is integrated with the air conditioner controller assembly or the thermal management domain controller assembly, and the controller can automatically adjust the opening and closing and opening angles of the inner and outer circulation dampers according to the numerical values input by the user and the feedback of the inner and outer circulation dampers.

Specifically, the air conditioner air inlet structure with the adjustable internal and external circulation air inlet proportion is used in a vehicle-mounted air conditioner, when the internal environment of the vehicle needs to increase the external circulation air inlet proportion, an instruction can be sent to the actuator 200 through the hollow platform of the vehicle, the actuator 200 controls the cam plate 300 to rotate positively, the first link mechanism 400 and the second link mechanism 500 at two sides of the cam plate 300 rotate, the inner wall of the first track groove 310 pushes the first link mechanism 400 to rotate so as to drive the first air door 600 to rotate towards the direction close to the internal circulation air inlet 110, so that the first air door 600 gradually covers the internal circulation air inlet 110, and the air inlet quantity of the internal circulation air inlet 110 is reduced; meanwhile, the inner wall of the second track groove 320 pushes the second link mechanism 500 to rotate, so that the second air door 700 is driven to rotate in a direction away from the outer circulation air inlet 120, part of the outer circulation air inlet 120 is exposed, the air inlet quantity of the outer circulation air inlet 120 is increased, and the adjustment of the proportion of the air inlet of the inner circulation and the outer circulation is completed.

In addition, when the ratio of the external circulation air intake needs to be reduced in the vehicle, another instruction may be sent to the actuator 200, so that the actuator 200 controls the cam disc 300 to rotate reversely, the first link mechanism 400 and the second link mechanism 500 at both sides of the cam disc 300 rotate, the inner wall of the first track groove 310 pushes the first link mechanism 400 to rotate reversely, and drives the first air door 600 to rotate in a direction away from the internal circulation air intake 110, so that the internal circulation air intake 110 is gradually exposed, and the air intake of the internal circulation air intake 110 is increased; meanwhile, the inner wall of the second track groove 320 pushes the second link mechanism 500 to reversely rotate, so that the second air door 700 is driven to rotate towards the direction close to the outer circulation air inlet 120, the second air door gradually covers the outer circulation air inlet 120, the air inlet quantity of the outer circulation air inlet 120 is reduced, and the adjustment of the proportion of the air inlet of the inner circulation and the outer circulation is completed.

It can be seen that, the air inlet structure of the air conditioner disclosed in this embodiment controls the cam disc 300 to rotate through the actuator 200, and the cam disc 300 drives the first link mechanism 400 and the second link mechanism 500 to rotate, so as to respectively control the positions of the first air door 600 and the second air door 700, and adjust the air outlet areas of the inner circulation air inlet 110 and the outer circulation air inlet 120, thereby achieving the effect of accurately adjusting the air inlet proportion of the inner circulation air inlet, effectively improving the heating performance of the air conditioner, simultaneously guaranteeing the fresh environment of the air in the vehicle, and avoiding the fogging of the front windshield, or leading a large amount of cold air to enter the passenger cabin through the outer circulation air inlet 120, so that the air inlet structure of the air conditioner can meet the working requirements in different use environments.

Specifically, in this embodiment, the first track groove 310 and the second track groove 320 are respectively disposed on two sides of one cam disc 300, and the first link mechanism 400 and the second link mechanism 500 are controlled simultaneously, so that the integrated control is simpler and more efficient in operation, and the external circulation air intake and the internal circulation air intake can be adjusted simultaneously during the control, so that the efficiency of adjusting the proportion of the internal and external circulation air intake is improved.

Specifically, compared with the technical solution that the first track groove 310 and the second track groove 320 are disposed on the same side of the cam disc 300, in this embodiment, the first link mechanism 400 and the second link mechanism 500 rotate in different planes respectively, the positions of the structures are distributed reasonably, and avoid each other, so that collision is avoided, and the security of the cam disc 300 driving the first link mechanism 400 and the second link mechanism 500 to rotate is improved.

As shown in fig. 5 and 6, as another implementation manner of the present embodiment, it is disclosed that the first track groove 310 and the second track groove 320 are each C-shaped; the first track grooves 310 and the second track grooves 320 are alternately provided on the cam plate 300. In this embodiment, the first track groove 310 and the second track groove 320 are staggered on two sides of the cam disc 300, so that the directions of the first link mechanism 400 and the second link mechanism 500 in the two track grooves are different, so as to correspondingly connect the first air door 600 and the second air door 700. The cam plate 300 synchronously drives the first link mechanism 400 and the second link mechanism 500 when rotating, so that the first air door 600 and the second air door 700 rotate simultaneously, the operation is convenient, the operation of adjusting the proportion of the internal and external circulating air inlet is simplified, and the adjustment flexibility is improved. In addition, in the case where the first trajectory groove 310 and the second trajectory groove 320 are provided to be staggered, the first link mechanism 400 and the second link mechanism 500 may be provided in the same shape, and the first link mechanism 400 and the second link mechanism 500 may be commonly used at the time of installation and replacement, thereby reducing costs.

Specifically, as another implementation manner of this embodiment, it is disclosed that the first track groove 310 is formed by connecting an inner circulation fully-opened arc section, an inner circulation half-opened arc section and an inner circulation fully-closed arc section with different curvature radii; the inner circulation full-open arc section, the inner circulation half-open arc section and the inner circulation full-closed arc section are arranged around the cam plate 300 and gradually extend from the center of the cam plate 300 to the edge of the cam plate 300. The second track groove 320 is formed by connecting an outer circulation full-open arc section, an outer circulation half-open arc section and an outer circulation full-closed arc section which have different curvature radiuses; the outer circulation full-open arc section, the outer circulation half-open arc section and the outer circulation full-closed arc section are arranged around the cam plate 300 and gradually extend from the edge of the cam plate 300 to the center of the cam plate 300.

Specifically, when the air inlet structure of the air conditioner disclosed in this embodiment is in the first state, one end of the first link mechanism 400 is located in the inner circulation fully-opened arc section, one end of the second link is located in the outer circulation fully-closed arc section, at this time, the first air door 600 is in the fully-opened state, the second air door 700 is in the fully-closed state, and the air inlet mode of the air conditioner is the full inner circulation mode.

When the cam disc 300 rotates, the inner wall of the inner circulation fully-opened arc section pushes the first link mechanism 400 to rotate towards the inner circulation half-opened arc section, the first link mechanism 400 drives the first air door 600 to rotate, the inner wall of the outer circulation fully-closed arc section pushes the second link mechanism 500 to rotate towards the outer circulation half-opened arc section, the second link mechanism 500 drives the second air door 700 to rotate, the inner wall of the inner circulation fully-opened section pushes the first link mechanism 400 into the inner circulation half-opened arc section, the first air door 600 is in a half-opened state, the inner wall of the outer circulation fully-closed arc section pushes the second link mechanism 500 into the outer circulation half-opened arc section, the second air door 700 is in a half-opened state, and an air inlet mode of the air conditioner is an inner and outer mixed air inlet mode.

When the inner wall of the inner circulation half-open arc segment pushes the first linkage 400 into the inner circulation full-closed arc segment, the first air door 600 enters the full-closed state, the inner wall of the outer circulation half-open arc segment pushes the second linkage 500 into the outer circulation full-open arc segment, and the second air door 700 enters the full-open state, and at this time, the air inlet mode of the air conditioner is the full-outer circulation mode.

In general, in this embodiment, by setting the arc segments in different states on the first track groove 310 and the second track groove 320, only one cam disc 300 is needed to realize multiple air intake modes, so that the structure is simple, the volume of the air intake structure of the air conditioner is reduced, and the manufacturing cost is reduced. More importantly, the first track groove 310 and the second track groove 320 are formed by the arc-shaped sections with different curvature radiuses, so that different opening and closing angles can be flexibly selected in the rotation process of the first air door 600 and the second air door 700, a plurality of different internal and external circulation air inlet ratios can be adjusted, more air inlet modes are increased, a user can select from a plurality of preset air inlet modes when using the air conditioner without manually setting parameters, the air inlet flexibility of the air conditioner air inlet structure is further improved, and the air conditioner air inlet structure is convenient to use.

As another implementation manner of this embodiment, as shown in fig. 1, it is disclosed that the casing 100 is provided with a compensating air inlet 1000 arranged in parallel with the inner circulation air inlet 110, and the second air door 700 rotates back and forth between the compensating air inlet 1000 and the outer circulation air inlet 120, so as to adjust the opening and closing ratio of the compensating air inlet 1000 and the outer circulation air inlet 120.

In this embodiment, after the wind of the compensation air inlet 1000 and the wind of the outer circulation air inlet 120 are mixed according to a certain proportion, the mixed wind is mixed with the wind of the inner circulation air inlet 110 again, when the second air door 700 rotates towards the direction of the outer circulation air inlet 120, the opening of the outer circulation air inlet 120 is smaller, the opening of the compensation air inlet 1000 is larger, and at this time, the outer circulation air inlet volume is smaller; when the second damper 700 rotates in the direction of the compensation air inlet 1000, the opening of the compensation air inlet 1000 becomes smaller, and the opening of the external circulation air inlet 120 becomes larger, and at this time, the external circulation air inlet amount becomes larger. After the air enters the air inlet structure of the air conditioner, the air entering through the internal circulation is fully mixed with the air entering through the external circulation, and the air enters into the environment in the vehicle after reaching the uniform temperature, so that the refrigerating or heating performance of the air conditioner is further improved.

In addition, in this embodiment, the compensation air inlet 1000 is close to the external circulation air inlet 120, and the two air inlets can be opened and closed by one air door, so that the structure is compact, and the space is saved.

As shown in fig. 3 and 4, as another implementation manner of the present embodiment, the first link mechanism 400 includes a first L-shaped link 410 and a first rocker arm 420, a first connecting post is disposed at a corner of the first L-shaped link 410, the first connecting post is rotatably disposed on the housing 100, one end of the first L-shaped link 410 is slidably disposed in the first track groove 310, the other end is connected to the first rocker arm 420, and the other end of the first rocker arm 420 facing away from the first L-shaped link 410 is connected to a rotating shaft of the first damper 600.

Specifically, the second link mechanism 500 includes a second L-shaped link 510 and a second rocker arm 520, where a second connecting post is disposed at a corner of the second L-shaped link 510, the second connecting post is rotatably disposed on the housing 100, one end of the second L-shaped link 510 is slidably disposed in the second track groove 320, the other end is connected to the second rocker arm 520, and the other end of the second rocker arm 520 facing away from the second L-shaped link 510 is connected to a rotating shaft of the second damper 700.

In this embodiment, by providing the first L-shaped link 410 and the second L-shaped link 510, and connecting two ends of the first L-shaped link 410 with the first track groove 310 and the first rocker arm 420 respectively, and simultaneously connecting two ends of the second L-shaped link 510 with the second track groove 320 and the second rocker arm 520 respectively, the first L-shaped link 410 and the second L-shaped link 510 are driven to slide in the first track groove 310 and the second track groove 320 respectively by the rotation of the cam plate 300, so as to drive the first rocker arm 420 and the second rocker arm 520 to swing, and further control the opening degrees of the first air door 600 and the second air door 700. Because the first L-shaped connecting rod 410 and the second L-shaped connecting rod 510 slide in the first track groove 310 and the second track groove 320 respectively, compared with other connection modes, such as gear transmission connection, the transmission of the first connecting rod mechanism 400 and the second connecting rod mechanism 500 is more flexible, and noise generated due to jamming in the transmission process is avoided, so that the normal use of the air inlet structure of the air conditioner is prevented from being influenced. By providing the first L-shaped link 410 and the first rocker arm 420, and the second L-shaped link 510 and the second rocker arm 520, which are purely mechanically driven, the control process of the actuator 200 driving the first damper 600 and the second damper 700 to rotate is accurate and efficient, and the noise is low.

In this embodiment, a first slider is protruding from the first L-shaped link 410, and the first slider is inserted into the first track groove 310; the first L-shaped connecting rod 410 is provided with a first toggle groove, one end of the first rocker arm 420 is inserted into the first toggle groove, and the other end is connected with the shaft side of the first air door 600 through a spline; a second slider is arranged on the second L-shaped connecting rod 510 in a protruding mode, and the second slider is spliced with the second track groove 320; the second L-shaped connecting rod 510 is provided with a second toggle groove, one end of the second rocker arm 520 is inserted into the first toggle groove, and the other end is connected with the shaft side of the second air door 700 through a spline.

Specifically, when the cam plate 300 rotates, the inner wall of the first track groove 310 pushes the first slider, the first slider drives the first L-shaped link 410 to rotate, the first toggle groove on the first L-shaped link 410 pushes the first swing post to rotate, the first swing post drives the first swing arm 420 to rotate, and the other end of the first swing arm 420 drives the first air door 600 to rotate through the spline. Meanwhile, the inner wall of the second track groove 320 pushes the second slider, the second slider drives the second L-shaped connecting rod 510 to rotate, the second toggle groove on the second L-shaped connecting rod 510 pushes the second swing post to rotate, the second swing post drives the second swing arm 520 to rotate, and the other end of the second swing arm 520 drives the second air door 700 to rotate through a spline. By arranging the first slider to slide in the first track groove 310, the first L-shaped connecting rod 410 is abutted with the cam disc 300, and the effect of precise transmission connection is achieved; the second slider is arranged to slide in the second track groove 320, so that the second L-shaped connecting rod 510 abuts against the cam plate 300, and the effect of precise transmission connection is achieved.

It should be understood that, although the present embodiment describes the transmission structure of the first and second link mechanisms 400 and 500 by taking the example of providing the first and second L-shaped links 410 and 510 and providing the first and second L-shaped links 410 and 510 in the first and second track grooves 310 and 320, respectively, the transmission structure of the first and second link mechanisms 400 and 500 in the present embodiment is not limited thereto, as long as the transmission mechanism can satisfy the synchronous control of the opening degree of the first and second dampers 600 and 700 by the self-rotation of the cam plate 300.

Specifically, as another implementation manner of this embodiment, a first sealing layer 610 is provided on a side of the first damper 600 facing the inner circulation air inlet 110; a second seal layer 710 is provided on the side of the second damper 700 facing the external circulation air intake 120. In this embodiment, the first sealing layer 610 is used to seal between the first damper 600 and the housing 100, the second sealing layer 710 is used to seal between the second damper 700 and the housing 100, and the first sealing layer 610 and the second sealing layer 710 are two-shot soft plastic. The secondary injection molding soft rubber has good wear resistance, scratch resistance and cohesiveness, and improves the tightness between the first air door 600, the second air door 700 and the shell 100.

Specifically, as another implementation manner of the present embodiment, it is disclosed that the grid structure 800 is disposed at the internal circulation air inlet 110, and the cell shape of the grid structure 800 is a regular polygon. In this embodiment, the unit cells are regular polygons such as regular hexagons, regular pentagons, squares, regular triangles, etc. with ribs forming a frame, and wind passes through the middle of the unit cells, so that the grid structure 800 formed by the unit cells of the regular polygons can improve the stability of the air inlet structure of the air conditioner, and meanwhile, filter sundries and prevent the sundries from entering the air inlet structure of the air conditioner.

Specifically, as another implementation of the present embodiment, a sealing ring 900 is provided on the housing 100 around the external circulation air inlet 120, so as to seal between the external circulation air inlet 120 and the metal plate of the vehicle body. In this embodiment, the seal ring 900 is a foam seal ring 900, and the foam seal ring 900 has excellent sealing performance, avoids gas release and atomization, and has excellent compression deformation resistance.

As another embodiment of the present utility model, an automobile is also disclosed, wherein the automobile body of the automobile is provided with the air conditioner air inlet structure with adjustable internal and external circulation air inlet proportion as described in any one of the above. The air inlet structure of the air conditioner with the adjustable internal and external circulation air inlet proportion is arranged on the body of the automobile, so that the air inlet proportion of the internal environment of the automobile is adjustable, various driving occasions can be flexibly dealt with, the energy consumption of the automobile is reduced, and the heating performance is improved.

In summary, the air conditioner air inlet structure with adjustable internal and external circulation air inlet proportion of the embodiment controls the cam disc 300 to rotate through the actuator 200, the cam disc 300 respectively controls the opening and closing angles of the first air door 600 and the second air door 700 through the first link mechanism 400 and the second link mechanism 500, and the opening and closing degree of the internal circulation air inlet 110 and the external circulation air inlet 120 is adjusted, so that the internal and external circulation air inlet proportion can be accurately adjusted by controlling the opening and closing angles of the first air door and the second air door in an opening internal circulation mode, the heating performance is effectively improved, the air freshness in a vehicle is ensured, the problems that front windshield is fogged and a large amount of cold air flows into a passenger cabin through the external circulation air inlet 120 are avoided, and the air conditioner air inlet structure can flexibly cope with the use requirements of various use occasions.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

The specific structure and working principle of the utility model are described by taking the air conditioner air inlet structure with the adjustable internal and external circulation air inlet proportion as an example, but the application of the embodiment is not limited by the air conditioner air inlet structure with the adjustable internal and external circulation air inlet proportion, and the utility model can also be applied to the production and the use of other similar workpieces.

It is to be understood that the utility model is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. An air conditioner air inlet structure with adjustable internal and external circulation air inlet proportion, which is characterized by comprising:

the actuator is arranged on the shell;

2. The air conditioner air inlet structure with adjustable internal and external circulation air inlet proportion according to claim 1, wherein the first track groove and the second track groove are both C-shaped; and the first track groove and the second track groove are arranged on the cam disc in a staggered way.

3. The air conditioner air inlet structure with the adjustable internal and external circulation air inlet proportion according to claim 1, wherein the first track groove is formed by connecting an internal circulation fully-opened arc section, an internal circulation half-opened arc section and an internal circulation fully-closed arc section with different curvature radiuses; the inner circulation full-open arc section, the inner circulation half-open arc section and the inner circulation full-closed arc section are arranged around the cam disc and gradually extend from the circle center of the cam disc to the edge of the cam disc;

4. The air conditioner air inlet structure with the adjustable internal and external circulation air inlet proportion according to claim 1, wherein a compensation air inlet which is arranged in parallel with the internal circulation air inlet is arranged on the shell, and the second air door rotates back and forth between the compensation air inlet and the external circulation air inlet and is used for adjusting the opening and closing proportion of the compensation air inlet and the external circulation air inlet.

5. The air inlet structure of an air conditioner with an adjustable internal and external circulation air inlet proportion according to claim 1, wherein the first connecting rod mechanism comprises a first L-shaped connecting rod and a first rocker arm, a first connecting column is arranged at the corner of the first L-shaped connecting rod, the first connecting column is rotatably arranged on the shell, one end of the first L-shaped connecting rod is slidably arranged in the first track groove, the other end of the first L-shaped connecting rod is connected with the first rocker arm, and the other end of the first rocker arm, which is away from the first L-shaped connecting rod, is connected with a rotating shaft of the first air door;

6. The air conditioner air inlet structure with the adjustable internal and external circulation air inlet proportion according to claim 5, wherein a first sliding head is arranged on the first L-shaped connecting rod in a protruding mode, and the first sliding head is spliced with the first track groove; a first toggle groove is formed in the first L-shaped connecting rod, one end of the first rocker arm is inserted into the first toggle groove, and the other end of the first rocker arm is connected with the shaft side of the first air door through a spline;

7. The air conditioner air inlet structure with the adjustable internal and external circulation air inlet proportion according to claim 1, wherein a first sealing layer is arranged on one side of the first air door facing the internal circulation air inlet; and a second sealing layer is arranged on one side of the second air door, which faces the external circulation air inlet.

8. The air conditioner air inlet structure with the adjustable internal and external circulation air inlet proportion according to claim 1, wherein a grid structure is arranged at the internal circulation air inlet, and the cell shape of the grid structure is regular polygon.

9. The air conditioner air inlet structure with adjustable internal and external circulation air inlet proportion according to claim 1, wherein a sealing ring is arranged on the shell around the external circulation air inlet.

10. An automobile, characterized in that the automobile body is provided with the air conditioner air inlet structure with adjustable internal and external circulation air inlet proportion according to any one of claims 1 to 9.