CN-224210877-U - Angle-adjustable self-compensating clearance mechanism of automobile air conditioner air door actuator

CN224210877UCN 224210877 UCN224210877 UCN 224210877UCN-224210877-U

Abstract

The utility model provides an angle-adjustable self-compensating clearance mechanism of an air door actuator of an automobile air conditioner, which belongs to the technical field of automobile part machining and comprises an air inlet shell, an air conditioner upper shell and an air inlet air door, wherein the air inlet air door is provided with an angle limiting unit and a protecting unit, the angle limiting unit is arranged at the edge of the air inlet air door to ensure that the rotation angle of the air inlet air door is maintained in a stable range, and the protecting unit is arranged at one side of the bottom of the air inlet air door to reduce friction loss and prolong the service life. The angle-adjustable self-compensating clearance mechanism of the air door actuator of the automobile air conditioner is adopted, the angle limiting unit is mutually matched with the air door limiting block through the air door rotating limiting block to ensure that the rotating angle of the air door is kept stable, and meanwhile, the protecting unit is mutually matched with the compression spring through the protecting sleeve to reduce abrasion of a spline shaft so as to ensure stable transmission.

Inventors

Li Yixie
FENG JIE
ZHANG TENGFEI

Assignees

廊坊动益汽车配件有限公司

Dates

Publication Date: 20260508
Application Date: 20250603

Claims (7)

1. The angle-adjustable self-compensating clearance mechanism of the automobile air conditioner air door actuator is characterized by comprising an air inlet shell, an air conditioner upper shell and an air inlet air door, wherein the air inlet air door is provided with an angle limiting unit and a protecting unit, the angle limiting unit is arranged at the edge of the air inlet air door and used for guaranteeing the stability of the rotation angle of the air inlet air door, and the protecting unit is arranged at one side of the bottom of the air inlet air door and used for reducing friction loss and prolonging service life.
2. The angle-adjustable self-compensating clearance mechanism of an air door actuator of an automobile air conditioner according to claim 1, wherein the air door is installed inside the air inlet shell, the air inlet amount of the air inlet shell is controlled by adjusting the opening and closing angle of the air door, and the air inlet shell is fixedly installed on the upper surface of the air conditioner upper shell.
3. The angle-adjustable self-compensating clearance mechanism of the automobile air conditioner air door actuator of claim 1, wherein a spline shaft is arranged on one side of the bottom of the air inlet air door, the spline shaft is a unilateral plane spline, one side of the spline shaft is a plane, and the inner side of the shaft body is of a hollow structure.
4. The angle-adjustable self-compensating clearance mechanism of an automobile air conditioner air door actuator according to claim 3, wherein a protection unit is arranged at the root of the spline shaft, the protection unit comprises a compression spring, the compression spring is slidably sleeved on the outer surface of the spline shaft, and the compression spring is arranged at the root of the spline shaft, so that the root of the spline shaft is prevented from being damaged when the spline shaft sleeve is matched with the spline shaft.
5. The angle-adjustable self-compensating clearance mechanism of an air door actuator of an automobile air conditioner according to claim 4, wherein the protecting unit further comprises a protecting sleeve, the protecting sleeve is slidably sleeved on the outer surface of the spline shaft, the protecting sleeve is arranged at the other end of the root of the spline shaft opposite to the compression spring, and the protecting sleeve prevents the spline shaft from being scratched by an air inlet shell when the spline shaft is directly contacted with the compression spring to scratch and is matched with the compression spring to displace.
6. The adjustable angle self-compensating gap mechanism of an automotive air conditioner air door actuator of claim 1, wherein the angle limiting unit comprises air door limiting blocks symmetrically arranged on the other side edge of the air inlet air door relative to the air inlet shell, and the air door limiting blocks are triangular in shape.
7. The adjustable self-compensating clearance mechanism of an air door actuator of an automotive air conditioner according to claim 6, wherein the angle limiting unit further comprises air door rotation angle limiting blocks, the air door rotation angle limiting blocks are symmetrically arranged on the upper surface of the upper shell of the air conditioner and correspond to the two air door limiting blocks, inclined planes matched with the air door limiting blocks are arranged on the air door rotation angle limiting blocks, and the air door rotation angle limiting blocks and the air door limiting blocks are mutually matched to maintain the stability of the rotation angle of an air inlet air door.

Description

Angle-adjustable self-compensating clearance mechanism of automobile air conditioner air door actuator Technical Field The utility model relates to the technical field of automobile part machining, in particular to an angle-adjustable self-compensating clearance mechanism of an automobile air conditioner air door actuator. Background In an air conditioning system of an automobile, an air inlet air door is taken as a key component, and plays a vital role in ventilation and temperature regulation in the automobile. The air inlet air door is used for controlling the rotation angle of the air inlet air door, so that the air quantity and the air flow direction entering the automobile are regulated, and the comfortable driving environment in the automobile is ensured. However, in practice, the intake damper presents a number of challenges. Since the intake damper is generally made of a plastic material, the characteristics of the plastic material are significantly affected by environmental factors. In cold winter, the plastic part is reduced in plasticity and becomes more brittle and hard at low temperature, and in hot summer, the plastic part is increased in plasticity and becomes softer at high temperature. The plastic difference of the plastic parts caused by temperature change directly increases the distortion of the air door, so that the rotation angle of the air door is greatly different, and the air quantity and the air flow direction of the air conditioner conveyed into the vehicle are influenced, thereby indirectly explaining the problem that the angle adjustment of the air door actuator of the existing automobile air conditioner is unstable. Disclosure of utility model In order to overcome the defects of the prior art, the utility model aims to provide the angle-adjustable self-compensating clearance mechanism of the air door actuator of the automobile air conditioner, wherein the angle limiting unit is mutually matched with the air door limiting block through the air door rotating limiting block to ensure that the rotating angle of the air door is kept stable, and meanwhile, the protecting unit is mutually matched with the compression spring through the protecting sleeve to reduce the abrasion of a spline shaft so as to ensure the transmission stability. In order to achieve the above object, the present utility model provides the following solutions: The angle-adjustable self-compensating clearance mechanism of the automobile air conditioner air door actuator comprises an air inlet shell, an air conditioner upper shell and an air inlet air door, wherein the air inlet air door is provided with an angle limiting unit and a protection unit, the angle limiting unit is arranged at the edge of the air inlet air door and used for guaranteeing the stability of the rotation angle of the air inlet air door, and the protection unit is arranged at one side of the bottom of the air inlet air door and used for reducing friction loss and prolonging the service life. Preferably, the air inlet air door is arranged in the air inlet shell, the air inlet amount of the air inlet shell is controlled by adjusting the opening and closing angle of the air inlet air door, and the air inlet shell is fixedly arranged on the upper surface of the air conditioner upper shell. Preferably, a spline shaft is arranged at one side of the bottom of the air inlet air door, the spline shaft is a unilateral plane spline, one side of the spline shaft is a plane, and the inner side of the shaft body is of a hollow structure. Preferably, the root of the spline shaft is provided with a protection unit, the protection unit comprises a compression spring, the compression spring is sleeved on the outer surface of the spline shaft in a sliding manner, and the compression spring is arranged at the root of the spline shaft to prevent the root of the spline shaft from being damaged when the spline shaft sleeve is matched with the spline shaft. Preferably, the protection unit further comprises a protection sleeve, the protection sleeve is arranged on the outer surface of the spline shaft in a sliding sleeved mode, the protection sleeve is arranged at the other end, opposite to the compression spring, of the root portion of the spline shaft, and the protection sleeve is prevented from being scratched by the compression spring when the spline shaft sleeve is directly contacted with the compression spring and is prevented from being scratched by the air inlet shell when being matched with the compression spring to generate displacement. Preferably, the angle limiting unit comprises air door limiting blocks, the air door limiting blocks are symmetrically arranged on the edge of the other side of the air inlet air door, which is opposite to the air inlet shell, and the shape of each air door limiting block is triangular. Preferably, the angle limiting unit further comprises air door rotation angle limiting blocks, the air door rotation angle limiting blocks