Angle-adjustable self-compensation gap mechanism of automobile air conditioner air door actuator

Abstract

The utility model provides an angle-adjustable self-compensation clearance mechanism of an automobile air conditioner air door actuator, which belongs to the technical field of automobile part processing and comprises an air inlet shell, an air conditioner upper shell and an air inlet air door. The air inlet air door is provided with an angle limiting unit and a protection unit. The angle limiting unit is installed on the edge of the air inlet air door, and it is guaranteed that the rotating angle of the air inlet air door is kept within a stable range. The protection unit is installed on one side of the bottom of the air inlet air door and used for reducing friction loss and prolonging the service life. According to the angle-adjustable self-compensation gap mechanism of the automobile air conditioner air door actuator, the angle limiting unit is matched with the air door limiting block through the air door rotation limiting block, and it is guaranteed that the rotation angle of an air inlet air door is kept stable; meanwhile, the protection unit is matched with a compression spring through a protection sleeve, spline shaft abrasion is reduced, and transmission stability is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and in particular to an angle-adjustable self-compensating gap mechanism for an automotive air conditioning damper actuator. Background Technology

[0002] In automotive air conditioning systems, the air intake damper is a key component that plays a crucial role in air circulation and temperature regulation within the vehicle. By controlling its rotation angle, the air intake damper regulates the amount and direction of air entering the vehicle, ensuring a comfortable driving and riding environment.

[0003] However, in practical applications, air intake dampers face numerous challenges. Since air intake dampers are typically made of plastic, and the properties of plastic materials are significantly affected by environmental factors. In cold winters, low temperatures reduce the plasticity of plastic parts, making them more brittle and hard; in hot summers, high temperatures increase the plasticity of plastic parts, making them more flexible. This difference in plasticity caused by temperature changes directly increases the amount of torsional deformation of the damper, resulting in significant differences in the damper's rotation angle. This, in turn, affects the amount and direction of air delivered into the vehicle by the air conditioning system, indirectly explaining the instability in the angle adjustment of existing automotive air conditioning damper actuators. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an angle-adjustable self-compensating gap mechanism for an automotive air conditioning damper actuator. The angle limiting unit cooperates with the damper rotation limiting block to ensure that the intake damper rotation angle remains stable. At the same time, the protection unit cooperates with the compression spring through the protective sleeve to reduce the wear of the spline shaft and ensure transmission stability.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] An adjustable self-compensating clearance mechanism for an automotive air conditioning damper actuator includes: an intake housing, an air conditioning upper housing, and an intake damper; the intake damper is equipped with an angle limiting unit and a protection unit; the angle limiting unit is installed on the edge of the intake damper to ensure the stability of the rotation angle of the intake damper; the protection unit is installed on one side of the bottom of the intake damper to reduce frictional loss and extend service life.

[0007] Preferably, the air intake damper is installed inside the air intake housing; the air intake volume of the air intake housing is controlled by adjusting the opening and closing angle of the air intake damper; the air intake housing is fixedly installed on the upper surface of the air conditioner upper housing.

[0008] Preferably, a spline shaft is provided on one side of the bottom of the air intake damper; the spline shaft is a single-sided planar spline, one side of the spline shaft is a plane and the inner side of the shaft body is a hollow structure.

[0009] Preferably, a protective unit is installed at the root of the spline shaft; the protective unit includes a compression spring, which is slidably sleeved on the outer surface of the spline shaft and installed at the root of the spline shaft to prevent damage to the root of the spline shaft when the spline shaft sleeve mates with the spline shaft.

[0010] Preferably, the protection unit further includes a protective sleeve; the protective sleeve is slidably sleeved on the outer surface of the spline shaft, and the protective sleeve is located at the other end of the spline shaft root relative to the compression spring, so as to prevent the spline shaft sleeve from directly contacting the compression spring and causing scratches, and also to prevent it from being scratched by the air intake housing when the fit is displaced.

[0011] Preferably, the angle limiting unit includes a damper limiting block, which is symmetrically installed on the other side edge of the air intake damper opposite to the air intake housing, and the damper limiting block is triangular in shape.

[0012] Preferably, the angle limiting unit further includes a damper rotation angle limiting block, which is symmetrically installed on the upper surface of the air conditioner housing and corresponds to the two damper limiting blocks. The damper rotation angle limiting block is provided with an inclined surface that is adapted to the damper limiting block. The damper rotation angle limiting block and the damper limiting block cooperate with each other to maintain the stability of the intake damper rotation angle.

[0013] According to the specific embodiments provided by this utility model, the following technical effects are disclosed:

[0014] (1) This utility model can control the rotation angle of the air intake damper by using a spline shaft and transmission components, allowing users to adjust the air intake volume and direction of the air conditioner according to their needs, thereby optimizing the air circulation and temperature regulation effect inside the vehicle.

[0015] (2) This utility model can limit the rotation range of the intake damper by using the damper rotation angle limiting block and the damper limiting block, prevent the damper from rotating excessively, ensure the stable operation of the mechanism, avoid malfunctions caused by abnormal damper rotation, and extend the service life of the entire air conditioning system.

[0016] (3) The protective sleeve of this utility model can protect key components such as the internal spline shaft, reduce the erosion of impurities such as dust and water vapor, reduce component wear, and improve the reliability and durability of the mechanism. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of an adjustable angle self-compensating gap mechanism for an automotive air conditioning damper actuator according to this utility model.

[0019] Figure 2 This is a schematic diagram of the intake damper assembly structure of an adjustable angle self-compensating gap mechanism for an automotive air conditioning damper actuator according to this utility model.

[0020] Figure 3 for Figure 2 Enlarged structural diagram at point A in the diagram;

[0021] Figure 4 This is a schematic diagram of the intake damper structure of an adjustable angle self-compensating gap mechanism for an automotive air conditioning damper actuator according to the present invention.

[0022] Figure 5 for Figure 4 A magnified structural diagram at point B in the diagram.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Air conditioner upper housing; 2. Air intake housing; 3. Air intake damper; 4. Damper rotation angle limit block; 5. Damper limit block; 6. Splined shaft; 7. Protective sleeve; 8. Compression spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1As shown, this utility model provides an angle-adjustable self-compensating clearance mechanism for an automotive air conditioning damper actuator, including: an intake housing 2, an air conditioning upper housing 1, and an intake damper 3; the intake damper 3 is equipped with an angle limiting unit and a protection unit; the angle limiting unit is installed on the edge of the intake damper 3 to ensure that the rotation angle of the intake damper 3 is maintained within a stable range; the protection unit is installed on one side of the bottom of the intake damper 3 to reduce friction loss and extend service life.

[0028] The intake damper 3 is installed inside the intake housing 2; the intake volume of the intake housing 2 is controlled by adjusting the opening and closing angle of the intake damper 3; the intake housing 2 is fixedly installed on the upper surface of the air conditioner housing 1 by screws.

[0029] like Figure 3 As shown, the angle limiting unit includes a damper limiting block 5. The damper limiting block 5 is symmetrically installed on the other side edge of the intake damper 3 opposite to the intake housing 2. The damper limiting block 5 is triangular in shape, with high rigidity and anti-deformation ability, which can reduce displacement or tilting caused by force and provide more reliable positioning.

[0030] The angle limiting unit also includes a damper rotation angle limiting block 4. The damper rotation angle limiting block 4 is symmetrically installed on the upper surface of the air conditioner housing 1 and corresponds to the two damper limiting blocks 5. The damper rotation angle limiting block 4 is provided with an inclined surface that matches the damper limiting block 5. The damper rotation angle limiting block 4 and the damper limiting block 5 cooperate with each other to maintain the rotation angle of the intake damper 3 within a stable range.

[0031] like Figure 5 As shown, a spline shaft 6 is provided on one side of the bottom of the air intake damper 3; the spline shaft 6 is a single-sided planar spline, one side of the spline shaft 6 is a plane and the inner side of the shaft body is a hollow structure; the planar structure of the spline shaft 6 forms an asymmetrical shaft end, ensuring that the spline shaft 6 and the mating parts can only be assembled at a unique angle, avoiding functional abnormalities caused by circumferential misalignment.

[0032] A protective unit is installed at the root of the spline shaft 6. The protective unit includes a compression spring 8, which is slidably sleeved on the outer surface of the spline shaft 6 and installed at the root of the spline shaft 6 to prevent damage to the root of the spline shaft 6 when the spline shaft sleeve mates with the spline shaft 6.

[0033] The protection unit also includes a protective sleeve 7; the protective sleeve 7 is slidably sleeved on the outer surface of the spline shaft 6. The protective sleeve 7 is located at the other end of the spline shaft 6, which is installed relative to the compression spring 8. This prevents the spline sleeve from directly contacting the compression spring 8 and causing scratches, while also preventing the spline shaft 6 from being scratched by the intake housing 2 when it is displaced during the engagement with the spline sleeve.

[0034] Working principle: During use, the intake damper 3 is driven to rotate by the damper actuator connected to the spline shaft 6. The damper limit block 5 in the angle limit unit cooperates with the inclined surface of the damper rotation angle limit block 4 to stabilize the opening and closing angle. At the same time, the compression spring 8 and the protective sleeve 7 of the protection unit buffer the axial impact of the spline shaft sleeve and reduce friction, so as to achieve the functions of self-compensating clearance and extending service life.

[0035] Therefore, the above-mentioned adjustable self-compensating clearance mechanism for automotive air conditioning damper actuator uses an angle limiting unit that works in conjunction with the damper rotation limiting block to ensure that the intake damper rotation angle remains within a stable range; the protection unit works in conjunction with the compression spring through the protective sleeve to reduce spline shaft wear and ensure transmission stability.

[0036] This document uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. Furthermore, those skilled in the art will recognize that, based on the ideas of this utility model, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An angle-adjustable self-compensating gap mechanism for an automotive air conditioning damper actuator, characterized in that, include: The air intake housing, the air conditioner upper housing, and the air intake damper are provided. The air intake damper is equipped with an angle limiting unit and a protection unit. The angle limiting unit is installed on the edge of the air intake damper to ensure the stability of the rotation angle of the air intake damper. The protection unit is installed on one side of the bottom of the air intake damper to reduce friction loss and extend service life.

2. The adjustable angle self-compensating gap mechanism for an automotive air conditioning damper actuator according to claim 1, characterized in that, The air intake damper is installed inside the air intake housing; the air intake volume of the air intake housing is controlled by adjusting the opening and closing angle of the air intake damper; the air intake housing is fixedly installed on the upper surface of the air conditioner housing.

3. The adjustable angle self-compensating gap mechanism for an automotive air conditioning damper actuator according to claim 1, characterized in that, A spline shaft is provided on one side of the bottom of the air intake damper; the spline shaft is a single-sided planar spline, one side of the spline shaft is a plane and the inner side of the shaft body is a hollow structure.

4. The adjustable angle self-compensating gap mechanism for an automotive air conditioning damper actuator according to claim 3, characterized in that, A protective unit is installed at the root of the spline shaft; the protective unit includes a compression spring, which is slidably sleeved on the outer surface of the spline shaft and installed at the root of the spline shaft to prevent damage to the root of the spline shaft when the spline shaft sleeve mates with the spline shaft.

5. The adjustable angle self-compensating gap mechanism for an automotive air conditioning damper actuator according to claim 4, characterized in that, The protection unit also includes a protective sleeve; the protective sleeve is slidably sleeved on the outer surface of the spline shaft, and the protective sleeve is located at the other end of the spline shaft relative to the compression spring, which prevents the spline shaft sleeve from directly contacting the compression spring and causing scratches, and also prevents it from being scratched by the air intake housing when the fit is displaced.

6. The adjustable angle self-compensating gap mechanism for an automotive air conditioning damper actuator according to claim 1, characterized in that, The angle limiting unit includes a damper limiting block, which is symmetrically installed on the other side edge of the air intake damper opposite to the air intake housing. The damper limiting block is triangular in shape.

7. The adjustable angle self-compensating gap mechanism for an automotive air conditioning damper actuator according to claim 6, characterized in that, The angle limiting unit also includes a damper rotation angle limiting block, which is symmetrically installed on the upper surface of the air conditioner housing and corresponds to the two damper limiting blocks. The damper rotation angle limiting block is provided with an inclined surface that is adapted to the damper limiting block. The damper rotation angle limiting block and the damper limiting block cooperate with each other to maintain the stability of the intake damper rotation angle.

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