CN2820588Y - Automobile air conditioner air valve server - Google Patents

Abstract

The utility model relates to an automobile air conditioner damper servo, which comprises a base (10), in which a motor (12) is installed, the positive and negative terminals of which are respectively connected with the positive and negative poles of a power supply, and a worm (5) is installed on the output shaft of the motor. ), the worm transmits the rotation of the motor to a reduction system consisting of several gears, the central axis of the final gear (3) of the reduction system is the output shaft, and the output shaft is connected with the connecting rod of the damper, and the gear ( 3) The upper surface is bonded with two opposite reeds (8), each reed has a number of contact points upturned, the circuit board (11) is fixed in the base, and its bottom surface is between the two reeds. There are several corresponding arc potentiometers above the contact point of (8). The contact between these arc potentiometers and the reed defines the multiple angles of the damper rotation. When the output shaft rotates, the connecting rod of the damper drives the damper to rotate. At a certain angle, when the rotation reaches the angle defined by the arc potentiometer and the reed, the motor will be powered off and stop rotating.

Description

Automobile air conditioning damper servo

technical field

The utility model relates to an automobile accessory, in particular to an automobile air conditioner damper servo.

Background technique

The current automobile air-conditioning system includes a plurality of dampers, through the control of these dampers, the modes of blowing head, blowing feet, or defrosting are realized, or fresh air can enter the car to improve the air environment in the car. . Most of the controls of these modes are controlled by pulling the cable through the handle on the front dashboard of the car. List cable damage as one of the common faults. Moreover, due to the manual control, the opening and closing position of the damper is inaccurate, the wire rope pulls for a long time or the quality of the end pressing is not good, all of which will cause control failure. More importantly, this form of manual control restricts the realization of automotive electronics.

Utility model content

The purpose of the utility model is to provide an automobile air conditioner damper servo, which can automatically control the switch and opening angle of the damper according to the control signal.

The purpose of this utility model is achieved through the following technical proposals: a kind of automobile air conditioner damper servo, including a base 10, a motor 12 is installed in the base, its positive and negative terminals are respectively connected with the positive and negative poles of the power supply, the output of the motor The shaft is equipped with a worm 5, and the worm transmits the rotation of the motor to the reduction system composed of several gears. The central axis of the final gear 3 of the reduction system is the output shaft, and the output shaft is connected with the connecting rod of the damper. The upper surface of the gear 3 is bonded with two reeds 8 oppositely arranged, and each reed has several contact points upturned. The circuit board 11 is fixed in the base, and its bottom surface is at the contact points of the two reeds 8. There are a number of corresponding arc potentiometers on the top. The contact between these arc potentiometers and the reed defines multiple angles for the rotation of the damper. When the output shaft rotates, the connecting rod of the damper drives the damper to rotate at a certain angle. When the rotation When the angle defined by the arc potentiometer and the reed is reached, the motor will be powered off and stop rotating.

The reduction system includes four stages. The worm 5 meshes with the helical gear of the worm wheel 4 to form the first stage of the reduction system; the spur gear on the upper part of the worm wheel 4 meshes with the large ring gear of the gear 1 to form the second stage of the reduction system. stage; the small ring gear at the bottom of gear 1 meshes with the large ring gear at the top of gear 2 to form the third stage of the reduction system; the small ring gear of gear 2 meshes with gear 3 to form the fourth stage of the reduction system.

The automobile damper servo disclosed by the utility model has the advantages that the automatic control of the damper of the automobile is realized, and the precision of the rotation angle of the damper is high.

Description of drawings

Fig. 1 is a side view of the utility model automobile air conditioner damper servo.

Fig. 2 is a top view of the automotive air-conditioning damper servo of the present invention with the upper cover removed, for the convenience of observation, the part of the circuit board located on the upper side of the gear 3 is not shown.

Detailed ways

In order to realize the automation of various dampers in the automobile air-conditioning system, the utility model provides a damper servo controlled by a circuit, which can precisely control various dampers and complete various prescribed actions according to the designer's requirements.

Please refer to Fig. 1, the utility model automotive air conditioner damper servo includes base 10, loam cake 9, after base 10 and loam cake 9 are installed together, be fixed by several self-tapping screws 14.

Please refer to FIG. 2 , a motor 12 is installed in the base 10 , and its positive and negative terminals are respectively connected to the positive and negative poles of the power supply on the circuit board 11 . The output shaft of the motor 12 is equipped with a worm 5, which meshes with the helical gear of the worm wheel 4 to form the first stage of the reduction system. The spur gear on the top of the worm wheel 4 meshes with the large ring gear of the gear 1 to form the second stage of the reduction system. The small ring gear at the bottom of gear 1 meshes with the large ring gear at the top of gear 2 to form the third stage of the reduction system. The small ring gear of gear 2 meshes with gear 3 to form the fourth stage of the reduction system. The central axis of the gear 3 is an output shaft, and the output shaft is connected with the connecting rod of the damper. The upper surface of the gear 3 is bonded with two opposite reeds 8 , and each reed 8 has several contact points upturned. The circuit board 11 is installed between the gear 3 and the gears 1, 2 and the worm wheel 4. The output shaft of the gear 3 protrudes from the circuit board 11. The circuit board 11 is provided with inserts for external power supply and other control signals. The bottom surface of the circuit board 11 is provided with corresponding arc potentiometers (not shown) above the contact points of the two reeds 8 . The contact of these arc potentiometers with the reed defines the various angles of damper rotation.

The control process of the utility model automobile air-conditioning damper servo is as follows:

The user inputs the corresponding control signal according to the needs. After the motor is powered on, the worm 5 is driven to rotate according to the control signal. Such rotation is transmitted to the gear 3 after being decelerated by the worm wheel 4 and the gears 1 and 2, and the rotation of the gear 3 drives the output shaft and the reed 8 Rotate together, the output shaft is connected with the connecting rod of the damper (not shown). When the output shaft rotates, the connecting rod of the damper drives the damper to rotate a certain angle. After the angle is reached, the motor will be powered off and will no longer rotate.

When the damper servo of the automobile air conditioner of the utility model is only used to control the opening and closing of the damper, the damper servo only needs two buttons, one is used to open the damper by 180 degrees, and the other closes the damper. Correspondingly, the arc potentiometer on the circuit board 11 and the reed 8 of the gear 3 only define two angles of 180 degrees and 0 degrees.

When the damper servo of the automobile air conditioner of the utility model is used to control the damper to realize multiple modes, a plurality of buttons need to be provided to make the damper open at different angles, and the arc potentiometer on the circuit board 11 also needs to be redesigned.

Since the automatic control is adopted, and the rotation angle of the air door is defined by the arc potentiometer and the reed, the error of the air door rotation can be controlled at about 2 degrees, which is greatly improved compared with manual control.

Claims (4)

1. automobile air-conditioning throttle servomechanism, comprise base (10), motor (12) is installed in the base, its positive negative terminal is connected with power positive cathode respectively, the output shaft of motor is equipped with worm screw (5), be delivered in the deceleration system that constitutes by several gears by of the rotation of this worm screw motor, the center shaft of the final stage gear (3) of deceleration system is an output shaft, output shaft is connected with the connecting rod of air door, the upper surface of gear (3) is bonded with two reeds (8) that are oppositely arranged, have several contact points that are upturned on each reed, circuit card (11) is fixed in the base, its bottom surface is provided with cooresponding several arc potential devices in the contact point top of two reeds (8), and these arc potential devices define a plurality of angles that air door rotates with contacting of reed.

2. automobile air-conditioning throttle servomechanism as claimed in claim 1, it is characterized in that: deceleration system comprises level Four, worm screw (5) is meshed with the helical wheel of worm gear (4), constitutes the first order of deceleration system; The straight gear on worm gear (4) top is meshed with the bull gear of gear (1), constitutes the second stage of deceleration system; The little gear ring of gear (1) bottom is meshed with the bull gear on gear (2) top and constitutes the third stage of deceleration system; The little gear ring of gear (2) is meshed with gear (3) and constitutes the fourth stage of deceleration system.

3. automobile air-conditioning throttle servomechanism as claimed in claim 2, it is characterized in that: circuit card (11) is installed between gear (3) and gear (1), (2) and the worm gear (4), the output shaft of gear (3) stretches out from circuit card (11), circuit card (11) is provided with inserted sheet, in order to external source and other control signal.

4. automobile air-conditioning throttle servomechanism as claimed in claim 1 is characterized in that: also comprise the loam cake (9) that is installed together with base, and fixing by several thread-forming screws (14).

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