Stacked automotive air conditioning damper

Abstract

The application discloses a stacked automobile air conditioner air door, which comprises a frame and two or more door bodies, all of which are arranged in parallel and stacked; among all the door bodies, the door body closest to the outside of the air vent is fixed with the frame; among all the door bodies, except the door body abutting against the frame, the other door bodies are connected with the frame as moving pairs at both ends, can reciprocate along the width direction of the frame, and the sum of the widths is greater than the size of the corresponding position of the opening of the frame; when all the door bodies are unfolded, every two adjacent door bodies are hooked with each other through a set of hook-shaped structures matched with each other and forming a seal after being connected; the opening position of the frame is provided with an inner flange extending to the inside of the opening corresponding to the two end parts of all the door bodies unfolded to the limit position, and is sealed with the corresponding door body through the inner flange. The application controls the air volume of the air vent by the sliding and stacking of the air door, adopts the structure of a motor plus a screw rod, replaces the actuator driving structure, and significantly reduces the space occupied by the driving structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile air conditioning technology, in particular to a stacked automobile air conditioning damper. BACKGROUND

[0002] The damper is one of the essential components of an air conditioner, specifically including a swing-open damper in the form of a louver, and a sliding damper that moves along a frame.

[0003] In the design and manufacture of automobile air conditioners, the volume of the automobile body is limited, and the air conditioner must be designed to be small enough, so in the design of the sliding damper, the damper is usually used to slide between the cold air and hot air passages, and is sealed by the faces at both ends and the grooves on the shell. The damper has a rack structure, which is driven by a gear arranged at the middle position of the sliding area. The gear is connected to the outside of the air conditioner box through an integral connecting rod, and is driven by an actuator motor at one end of the connecting rod.

[0004] This design has the following disadvantages during temperature adjustment:

[0005] 1. In the design of the sliding damper, a single damper is usually used to control the cold air and hot air passages. Since the size of the damper is fixed, there is a linear proportional relationship between the areas of the cold air and hot air passages, and the total ventilation area does not change. In actual air conditioner box temperature linear calibration, certain working conditions require a nonlinear ratio to achieve, and a single damper cannot meet the demand.

[0006] 2. When two or more sliding dampers are used, nonlinear temperature adjustment can be achieved, but a set of gears and drive motors need to be added. Moreover, the traditional sliding damper occupies a large space, and this design needs to be driven by an actuator motor arranged outside the air conditioner box, which increases the number of motion mechanisms and motors. The arrangement of this actuator and motion mechanism increases the Y-direction size of the temperature adjustment area.

[0007] 3. The structure cannot be modularized. Since the sizes of the cold air and hot air passages in different air conditioner boxes are not exactly the same, the movement range of the damper is different, and the size of the damper cannot be designed modularly in the design, which has poor universality.

[0008] Therefore, how to achieve nonlinear temperature adjustment at a lower cost while saving space has become a technical problem that technicians in the field need to solve. SUMMARY

[0009] In view of the high cost of existing technology for achieving nonlinear temperature adjustment, the present application provides a stacked automobile air conditioning damper.

[0010] In order to achieve the above-mentioned purpose, the application discloses a stacked automobile air conditioner air door, which comprises a frame arranged at a ventilation opening and two or more door bodies arranged in the frame.

[0011] All the door bodies are arranged in parallel with each other along the vertical direction of the air flow of the ventilation opening.

[0012] Among all the door bodies, the door body located at the outermost side or the innermost side of the air door is fixed to the frame and abuts against one side wall of the opening of the frame.

[0013] The other door body farthest from the door body fixed to the frame is an unfolded end.

[0014] Among all the door bodies, the two ends of all the door bodies except the door body abutting against the frame are connected with the frame in a moving pair and can reciprocate along the width direction of the frame.

[0015] When all the door bodies are unfolded, each two adjacent door bodies are hooked with each other through a set of hook-shaped structures matched with each other and forming a seal after being engaged.

[0016] The frame opening position corresponds to the two end portions of all the door bodies unfolded to the limit position, and the frame opening position corresponds to the two end portions of all the door bodies unfolded to the limit position.

[0017] The application achieves the following technical effects:

[0018] 1. By arranging two or more door bodies in the frame and arranging all the door bodies in parallel with each other, the traditional design of the door body as a plane is changed, the utilization of the door body in the three-dimensional space is expanded, the door body can be stacked in the frame, the space occupation degree of the automobile air conditioner air door outside the frame is reduced, thereby the overall size of the automobile air conditioner air door can be reduced, the modularization of the automobile air conditioner air door is facilitated, and the manufacturing cost of the automobile air conditioner air door is saved.

[0019] 2. By connecting all the door bodies except the fixed door body with the frame in a moving pair, the area size of the ventilation area can be flexibly adjusted when the air door moves, thereby the air volume of the ventilation area can be flexibly adjusted.

[0020] 3. When the application is applied to the automobile air conditioner, the multiple dampers are used to control the ventilation of multiple airflow channels independently, the correlation between the opening areas of the multiple airflow channels is eliminated, the defect that only linear proportional relationship can be realized by the traditional movable damper is eliminated, the automobile air conditioner damper of the application can realize nonlinear proportional relationship after multiple combinations, multiple working conditions are met, and the cost of applying the automobile air conditioner to nonlinear temperature regulation is further saved.

[0021] 4. The hook-shaped structure formed by the abutment between the adjacent door bodies and the inward flanging at the frame opening position ensure that the door bodies and the door bodies and the door bodies and the frame have strong sealing effect, when the damper is in the closed state, the effect of preventing air leakage is realized, so as to ensure the accuracy of the automobile air conditioner when regulating the temperature.

[0022] Preferably, one side of the door body farthest from the outside of the air vent towards the inside of the air vent is provided with a pair of symmetrical tension springs arranged near the both ends of the door body;

[0023] Both ends of each tension spring are fixed by protruding pins located in the corresponding door body and the frame.

[0024] Preferably, one end of each door body and the frame is provided with a guide rib extending towards the frame;

[0025] The position where the frame and each door body are connected as a moving pair is provided with a guide groove matched with the corresponding guide rib;

[0026] Each guide rib extends along the moving direction of the corresponding door body.

[0027] Preferably, each door body is constrained in position and slides in the unfolding direction by the cooperation of the protruding ribs at both ends and the grooves in the frame.

[0028] Preferably, among all the door bodies, the door body farthest from the outside of the air vent is connected with the driving device;

[0029] The driving device is a screw rod and slider driving device, which comprises a screw rod connected with the frame as a revolute pair, and a slider threadedly connected with the screw rod and fixed with the door body corresponding to the unfolding end.

[0030] More preferably, the slider is connected with the door body corresponding to the unfolding end through a connecting structure;

[0031] The screw rod is provided with a limiting block;

[0032] The limiting block is arranged at the limit position of the door body movement corresponding to the unfolding end.

[0033] The limiting block of the slider limit position is fixed to the frame by buckling.

[0034] More preferably, the screw rod is driven by a motor with a variable speed structure.

[0035] More preferably, the screw rod slider driving device and the motor are arranged outside the frame and are provided with a protective cover.

[0036] The protective cover is partially sealed to the frame by a rib groove.

[0037] More preferably, the motor is fixed to a motor support by a motor pressing plate.

[0038] The motor support is fixedly connected to the frame.

[0039] More preferably, one side of the screw rod is provided with a guide rod for arranging the slider.

[0040] The guide rod is fixedly connected to the motor support by interference fit.

[0041] The concept, specific structure and technical effects of the present application will be further described below in combination with the drawings, so as to fully understand the purpose, features and effects of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 The structure schematic view of an embodiment of the present application towards the outside of the air duct is shown.

[0043] Figure 2 The structure schematic view of an embodiment of the present application towards the inside of the air duct is shown.

[0044] Figure 3 The structure schematic view of an embodiment of the present application towards the outside of the air duct is shown.

[0045] Figure 4 The structure schematic view of an embodiment of the present application towards the outside of the air duct is shown.

[0046] Figure 5 The structure schematic view of an embodiment of the present application towards the outside of the air duct is shown.

[0047] Figure 6 The structure schematic view of an embodiment of the present application towards the outside of the air duct is shown.

[0048] Figure 7 The structure schematic view of an embodiment of the present applicationFigure 4 Fig. 7 is a schematic view of a cross section structure of the present application in AA direction.

[0049] Figure 8 Fig. 8 is a schematic view of a structure of the present application in a state of all air doors being folded, viewed from inside of the air duct.

[0050] Figure 9 Fig. 9 is a schematic view of a structure of the present application in a state of all air doors being folded, viewed from a side without protective cover.

[0051] Figure 10 Fig. 10 is a schematic view of a structure of the present application in a state of all air doors being folded, viewed from a side with protective cover.

[0052] Figure 11 Fig. 11 is a schematic view of a structure of the present application in a state of all air doors being folded. Figure 8 Fig. 12 is a schematic view of a cross section structure of the present application in BB direction.

[0053] Figure 12 Fig. 13 is a schematic view of a structure of a distal door body of the present application.

[0054] Wherein, 1, frame; 2, inner flange; 3, door body; 4, screw rod; 5, variable speed structure; 6, motor; 7, sliding block; 8, connecting structure; 9, motor pressing plate; 10, motor support; 11, guide rod; 12, sliding block limit position limiting block; 13, protruding pin; 14, tension spring; 15, protective cover; 16, protruding rib. DETAILED DESCRIPTION

[0055] EMBODIMENT

[0056] As shown in the drawings, the stacked air door of the automobile air conditioner comprises a frame 1 arranged at an air vent, and two or more door bodies 3 arranged in the frame 1. Figures 1 to 11

[0057] Wherein, all the door bodies 3 are arranged in parallel along the vertical direction of the air flow of the air vent;

[0058] Among all the door bodies 3, the door body 3 closest to the outermost side or the innermost side of the air door is fixed to the frame 1 and abuts against the side wall of the opening of the frame 1;

[0059] The other door body 3 farthest from the door body 3 fixed to the frame 1 is the unfolded end;

[0060] Among all the door bodies 3, except for the door body 1 abutting against the frame 1, the other door bodies 1 are connected with the frame 1 as a moving pair at both ends and can reciprocate along the width direction of the frame 1;

[0061] When all the door bodies 3 are unfolded, each two adjacent door bodies 3 are hooked with each other through a set of hook-shaped structures matched with each other and forming a seal after being engaged;

[0062] ​The frame 1 opening position corresponds to all the door body 3 to the limit position of the two end parts are provided with the inward flanging 2 extending to the opening inside, through the inward flanging 2 and the corresponding door body 1 sealing.

[0063] In the frame 1 of the present application, the inward flanging 2 extending to the opening inside and each door body 3 two end parts partially overlap to form a seal, when all the door body 3 is unfolded to the limit position, it can completely close the air vent.

[0064] The present application changes the traditional door body only as a plane design by setting two or more door bodies in the frame, and all the door bodies can be stacked parallel to each other, expands the utilization of the door body in the three-dimensional space, at the same time, the door body can be stacked in the frame, reduces the space occupation degree of the automobile air conditioning air door outside the frame, so as to reduce the overall size of the automobile air conditioning air door, facilitates the modularization of the automobile air conditioning air door, and saves the manufacturing cost of the automobile air conditioning air door.

[0065] And, all the door bodies except the fixed door body are connected with the frame as a moving pair, so that the area size of the ventilation area can be flexibly adjusted when the air door moves, thereby helping to flexibly adjust the air volume of the ventilation area.

[0066] When the present application is applied to the automobile air conditioner, under the condition that the size of the air vent is unchanged, multiple air doors can be used to independently control the ventilation of multiple different airflow channels, thereby eliminating the correlation between the opening areas of multiple airflow channels, eliminating the defect that only linear proportional relationship can be realized by the traditional movable air door, so that the automobile air conditioning air door of the present application can realize nonlinear proportional relationship after multiple combinations, meet various working conditions, and further save the cost of applying automobile air conditioner for nonlinear temperature regulation.

[0067] Further, the present application is provided with the hook-shaped structure between the adjacent door bodies, and the inward flanging is provided at the opening position of the frame, so as to ensure that the door body and the door body, and the door body and the frame have strong sealing effect, when the air door is in the closed state, it can prevent air leakage, so as to ensure the accuracy of the automobile air conditioner when regulating temperature.

[0068] In some embodiments, the side of the door body 3 corresponding to the unfolded end towards the inside of the air vent is provided with a pair of tension springs 14 symmetrically arranged near the two end positions of the door body 3;

[0069] The two ends of each tension spring 14 are fixed by the protruding pin 13 located in the corresponding door body 3 and the frame 1.

[0070] In practical application, the size of each door body 1 can be adjusted, and in design, modularized damper design can be realized, and even if the sizes of cold air and hot air passages are different in different air conditioning boxes, the partial ventilation area of the damper can be shielded, and the damper can still be adjusted in size to achieve free adjustment of the opening degree of the ventilation area damper.

[0071] In some embodiments, each door body 3 is provided with a guide rib extending towards the frame 1 at one end of the moving pair with the frame 1.

[0072] The position where the frame 1 is connected with each door body 3 in the moving pair is provided with a guide groove matched with the corresponding guide rib.

[0073] Each guide rib extends along the moving direction of the corresponding door body 3.

[0074] In practical application, the thickness of each guide rib is smaller than the thickness of the corresponding door body, and by providing the guide rib extending towards the frame 1 at both ends of each door body 3, and the thickness of each guide rib being smaller than the thickness of the corresponding door body, each two adjacent frames 1 can be closely attached together with the smallest interval, thereby maximizing the space utilization.

[0075] In some embodiments, each door body 3 is constrained in position and slides along the unfolding direction by the protruding rib 16 at both ends cooperating with the groove in the frame 1.

[0076] In some embodiments, among all the door bodies 3, the door body 3 farthest from the outside of the ventilation opening is connected with the driving device.

[0077] The driving device is a screw rod and slider driving device, which comprises a screw rod 4 connected with the frame 1 in a revolute pair, and a slider 7 threadedly connected with the screw rod 4 and fixed with the door body 3 at the corresponding unfolding end.

[0078] In practical application, the structure of micro driving motor plus screw rod 4 is adopted to replace the actuator driving structure, which significantly reduces the space occupied by the driving structure, and is more suitable for modularized size design, and in the temperature damper area of the air conditioning box with similar or identical size, the structure can be arranged and applied, and according to different requirements, only the effective area stroke of the damper in the air conditioning box needs to be adjusted to be applicable to different occasions.

[0079] In some embodiments, the slider 7 is connected with the door body 3 at the corresponding unfolding end through a connecting structure 8.

[0080] The screw rod 4 is provided with a limiting block 12.

[0081] The limiting block 12 is arranged at the limit position of the movement of the door body 3 at the corresponding unfolding end.

[0082] The limiting block 12 at the limit position of the slider is fixed with the frame 1 through buckling.

[0083] In some embodiments, the screw rod 4 is driven by a motor 6 with a variable speed structure 5.

[0084] In some embodiments, the screw rod slider driving device and the motor 6 are arranged outside the frame 1 and are provided with a protective cover 15.

[0085] The protective cover 15 is partially sealed with the frame 1 through a rib groove.

[0086] In practical applications, the screw rod slider driving device and the motor 6 are arranged on the frame 1, which can be arranged inside the air conditioning box as a whole with the frame 1, without the need of installing an actuator motor and a motion mechanism externally, thereby saving space in the Y direction and realizing a larger ventilation area under the same customer boundary.

[0087] The protective cover 15 is partially sealed with the frame 1 through a rib groove, which can avoid air leakage from the motor part of the windward surface.

[0088] In some embodiments, the motor 6 is fixed on the motor support 10 through a motor pressing plate 9.

[0089] The motor support 10 is fixedly connected with the frame 1, for example, through screw locking or buckle fixing.

[0090] In some embodiments, one side of the screw rod 4 is provided with a guide rod 11 for arranging the slider 7.

[0091] The guide rod 11 is fixedly connected with the motor support 10 through interference fit.

[0092] The above describes the preferred embodiments of the present application in detail. It should be understood that those skilled in the art can make many modifications and changes without creative labor according to the concept of the present application. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment based on the prior art according to the concept of the present application shall be within the protection scope defined by the claims.

Claims

1. A stacked automobile air conditioning damper comprising a frame (1) arranged at a vent, and two or more damper bodies (3) arranged in the frame (1), characterized in that, All the door bodies (3) are arranged in parallel along the vertical direction of the airflow of the air vent; Among all the door bodies (3), the door body (3) closest to the outermost or innermost side of the air door is fixed to the frame (1) and abuts against the side wall of the opening of the frame (1); The other door body (3) farthest from the door body (3) fixed to the frame (1) is the unfolded end; Among all the door bodies (3), except the door body (3) abutting against the frame (1), the other door bodies (3) are connected with the frame (1) as a moving pair at both ends and can reciprocate along the width direction of the frame (1); When all the door bodies (3) are unfolded, every two adjacent door bodies (3) are hooked together through a set of hook-shaped structures matched with each other and forming a seal after being connected; The frame (1) is provided with an inner flange (2) extending inwardly at the position corresponding to the two end portions of all the door bodies (3) unfolded to the limit position, and the inner flange (2) is sealed with the corresponding door body (3); A pair of tension springs (14) symmetrically arranged at the positions close to both ends of the door body (3) are arranged between the side of the door body (3) farthest from the outside of the air vent and the frame (1); Both ends of each tension spring (14) are fixed through the protruding pins (13) located at the corresponding door body (3) and the frame (1); One end of each door body (3) and the frame (1) as a moving pair is provided with a guide rib extending in the direction of the frame (1); The position of the frame (1) and each door body (3) as a moving pair is provided with a guide groove matched with the corresponding guide rib; Each guide rib extends along the moving direction of the corresponding door body (3); Among all the door bodies (3), the door body (3) farthest from the outside of the air vent is connected with a driving device; The driving device is a screw block driving device, which comprises a screw rod (4) connected with the frame (1) as a revolute pair, and a sliding block (7) threadedly connected with the screw rod (4) and fixed to the door body (3) corresponding to the unfolded end.

2. The stacked automotive air conditioning damper according to claim 1, wherein Each door body (3) is constrained in position and slides in the unfolding direction through the protruding ribs (16) at both ends and the grooves in the frame (1).

3. The stacked automotive air conditioning damper according to claim 1, wherein The sliding block (7) is connected with the door body (3) corresponding to the unfolded end through a connecting structure (8); The screw rod (4) is provided with a limiting block (12); The limiting block (12) is arranged at the limit position of the movement of the door body (3) corresponding to the unfolded end; The limiting block (12) is fixed to the frame (1) through a buckle.

4. The stacked automotive air conditioning damper according to claim 1, wherein The screw rod (4) is driven by a motor (6) with a variable speed structure (5).

5. The stacked automotive air conditioning damper according to claim 4, wherein The screw block driving device and the motor (6) are arranged outside the frame (1) and are provided with a protective cover (15); The protective cover (15) is partially sealed with the frame (1) through a rib groove.

6. The stacked automotive air conditioning damper according to claim 5, wherein The motor (6) is fixed to a motor support (10) through a motor pressing plate (9). The motor support (10) is fixedly connected with the frame (1).

7. The stacked automotive air conditioning damper according to claim 6, wherein One side of the screw rod (4) is provided with a guide rod (11) for arranging the sliding block (7). The guide rod (11) is fixedly connected with the motor support (10) through interference fit.

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