CN2769972Y - Air conditioner actuator - Google Patents

Abstract

The utility model discloses an air conditioner actuator, comprising a motor (4), a reduction transmission mechanism and a potentiometer (3), the output shaft of the motor is connected to the input shaft of the reduction transmission mechanism, the reduction transmission mechanism includes a reduction gear, and the reduction gear has an output shaft Connect the adjustable end of the potentiometer; the reduction transmission mechanism includes a two-stage worm transmission mechanism, the input shaft of which is fixedly connected to the output shaft of the motor, and the output shaft meshes with the reduction gear; the potentiometer is preferably an angle position sensor; the utility model simplifies the reduction transmission mechanism , improve mechanical efficiency, save limited space, and effectively increase the service life of the transmission mechanism; the potentiometer adopts an angular position sensor, which greatly reduces wear and error, and the entire circuit control reduces error, makes the control orderly, and effectively improves the accuracy , reliability and cost savings.

Description

Air Conditioning Actuator

technical field

The utility model relates to an electric actuator for automatic control.

Background technique

In the air conditioning system of a car, the automatic control requires an electric actuator to drive the movement of the damper mechanism to realize the adjustment of the closing and opening angle of the damper. The actuator senses the position of the damper through the potentiometer to control the stroke of the damper. In the design, due to the limitation of the interior space of the car, in order to achieve interchangeability and versatility, the internal structure of the actuator is mostly composed of a motor, a PCB circuit, a potentiometer and a four-stage reduction gear transmission mechanism. As disclosed in Chinese patent ZL02205928, this type of technical solution is operated by a motor, and the worm screw fixed on the motor is transmitted to the gear. The reduction mechanism is composed of four-stage gear transmission. The transmission of the ring is decelerated and transmitted to the end gear layer by layer, and the transmission connecting rod fixed on the end gear drives the air-conditioning damper operation mechanism to realize the operation of the entire system; the potentiometer adopts a pair of metal brushes and a circuit board fixed on the end gear. The upper carbon brush resistance and the control circuit are closely matched, and the metal brush and the carbon brush resistance are in contact with each other through the operation of the end gear. The change of the current value between the contact points makes the motor stop and rotate, and controls the entire operation mode. This kind of mechanism is composed of four-stage gear transmission, its structure is relatively complicated, and the transmission efficiency is low, which makes the internal space of the actuator narrow; due to the close cooperation of the mechanism, the induction control of the displacement contact induction method is easy to produce wear and tear, making The service life of the metal brush and carbon brush resistance is reduced, and the induction error is increased, resulting in a decrease in the accuracy of the entire mechanism.

Contents of the invention

The purpose of this utility model is to solve the above problems and provide an air conditioner actuator with simple structure, long service life, accuracy and reliability.

In order to achieve the above object, the utility model proposes an air conditioner actuator, including a motor 4, a reduction transmission mechanism and a potentiometer 3, the output shaft of the motor is connected to the input shaft of the reduction transmission mechanism, and the reduction transmission mechanism includes a reduction gear, The reduction gear has an output shaft connected to the adjustable end of the potentiometer; the reduction transmission mechanism includes a two-stage worm transmission mechanism, the input shaft of which is fixedly connected to the output shaft of the motor, and the output shaft meshes with the reduction gear.

In the above-mentioned air conditioner actuator, the two-stage worm transmission mechanism includes a first worm 1, a second worm 2 and a second worm coaxial gear 5, and the second worm 2 and the second worm coaxial gear 5 are fixed coaxially , the first worm 1 is fixedly connected to the output shaft of the motor, and meshes with the second worm coaxial gear 5 . Or the two-stage worm transmission mechanism includes a driving gear, a first worm 1 and a second worm 2, the driving gear is fixedly connected to the output shaft of the motor, the first worm 1 is meshed with the driving gear, and the The first worm is coaxially fixed to the second worm.

In the above-mentioned air conditioner actuator, the reduction gears include a first reduction gear 11 and a second reduction gear 12, the first reduction gear and the second reduction gear mesh with the second worm respectively, and the second reduction gear outputs The shaft is connected to the adjustable end of the potentiometer.

Or the air conditioner actuator mentioned above, the reduction gear includes a first reduction gear 11 meshing with the second worm, and the output shaft at one end of the first gear is connected to the adjustable end of the potentiometer.

The potentiometer is an angular position sensor, the rotor of which is connected to the first or second gear output shaft.

At the same time, the utility model proposes an air conditioner actuator, including a motor 4, a reduction transmission mechanism and a potentiometer 3, the output shaft of the motor is connected to the input shaft of the reduction transmission mechanism, the reduction transmission mechanism includes a reduction gear, and the The reduction gear has an output shaft connected to the adjustable end of the potentiometer; the reduction transmission mechanism includes a two-stage worm transmission mechanism, the input shaft of which is fixedly connected to the output shaft of the motor, and the output shaft meshes with the reduction gear; the potentiometer for the angular position sensor.

In the above-mentioned air conditioner actuator, the two-stage worm transmission mechanism includes a first worm 1, a second worm 2 and a second worm coaxial gear 5, and the second worm 2 and the second worm coaxial gear 5 are fixed coaxially , the first worm 1 is fixedly connected to the output shaft of the motor, and meshes with the second worm coaxial gear 5 . The reduction gear includes a first reduction gear 11 and a second reduction gear 12, the first reduction gear and the second reduction gear mesh with the second worm respectively, and the output shaft of the second reduction gear is connected to the angular position Sensor rotor. Or the reduction gear includes a first reduction gear 11 meshing with the second worm, and the output shaft at one end of the first gear is connected to the angular position sensor rotor.

Due to the adoption of the above scheme, the following beneficial effects are brought:

1. Due to the use of the two-stage worm transmission mechanism, the reduction transmission mechanism is simplified, the mechanical transmission efficiency is improved, the limited space is saved, and the service life of the transmission mechanism is effectively improved.

2. The potentiometer adopts an integrated angle position sensor, which greatly reduces wear and error, and prolongs the service life of the whole device of the utility model; the entire circuit control reduces error, makes the control orderly, and effectively improves accuracy and reliability. performance and cost savings.

3. The reduction gear at the output end of the transmission mechanism is used as the power output, and the potentiometer is adjusted at the same time, which can further simplify the reduction transmission mechanism and improve transmission efficiency.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a left view of the structural schematic diagram in Fig. 1 .

Detailed ways

The utility model will be described in further detail below through specific embodiments in conjunction with the accompanying drawings.

Embodiment 1: As shown in Figures 1 and 2, the embodiment of the present invention includes an actuator motor 4, a potentiometer 3, a PCB circuit board and a secondary worm drive mechanism. Through the operation of the motor, the first worm 1 fixed on the motor shaft meshes with the second worm coaxial gear 5 to drive the second worm 2, and the second worm 2 drives the first reduction gear 11 and the second reduction gear 12 respectively. The transmission link on the first reduction gear 11 realizes the operation of the air-conditioning damper mechanism, and its potentiometer is sensed by an angular position sensor: it is fixed on the circuit board, and the intermediate rotor part is connected with the output shaft of the second reduction gear 12, through which the second reduction gear 12 The operation drives the middle rotor to rotate, so that the resistance between the rotor and the two ends of the carbon brush circuit changes. Through the control of the main control circuit, the motor is stopped to control the stroke of the entire mechanism, which effectively improves the mechanical efficiency and makes The transmission is simplified, the limited space is saved, the potentiometer can be placed flexibly, and the service life of the transmission mechanism is effectively improved. The potentiometer adopts a single part angle position sensor, and the rotor is connected to the second reduction gear 12, which greatly reduces the wear and error of the potentiometer in the prior art, and the software program can be used to control the entire mechanism, which greatly reduces the error and makes the control effective. Sequencing effectively improves accuracy, reliability and saves costs.

Embodiment 2: Different from the previous example, the reduction transmission mechanism of this example includes the first worm 1 and the second worm 2, and the first reduction gear 11 for driving the transmission connecting rod to realize the operation of the air-conditioning damper mechanism. The angle of this example The position sensor is installed on the output shaft at one end of the first reduction gear, and the rotor of the angular position sensor is fixedly connected to the output shaft of the first reduction gear and runs coaxially with the first reduction gear; the entire reduction transmission mechanism is greatly simplified, the transmission efficiency is improved, and the control accuracy is improved. improve.

Claims (9)

1, a kind of Actuator Of The Air Conditioner, comprise motor (4), reduction gearing mechanism and potentiometer (3), described motor output shaft connects described reduction gearing mechanism input shaft, and described reduction gearing mechanism comprises reduction gearing, and described reduction gearing has an output shaft and connects the adjustable end of described potentiometer; It is characterized in that: described reduction gearing mechanism comprises the second-stage worm gear train, the affixed described motor output shaft of its input shaft, its output shaft and reduction gearing engagement.

2, Actuator Of The Air Conditioner as claimed in claim 1, it is characterized in that: described second-stage worm gear train comprises first worm screw (1), second worm screw (2) and the second worm screw in-line gears (5), described second worm screw (2) and the second worm screw in-line gears (5) are coaxial affixed, the output shaft of the affixed described motor of described first worm screw (1), and mesh with the second worm screw in-line gears (5).

3, Actuator Of The Air Conditioner as claimed in claim 2, it is characterized in that: described reduction gearing comprises first reduction gearing (11) and second reduction gearing (12), described first reduction gearing, second reduction gearing respectively with described second worm mesh, the described second reduction gearing output shaft connects the adjustable end of described potentiometer.

4, Actuator Of The Air Conditioner as claimed in claim 2 is characterized in that: described reduction gearing comprises first reduction gearing (11), and with described second worm mesh, described first gear, one end output shaft connects the adjustable end of described potentiometer.

5, as each described Actuator Of The Air Conditioner among the claim 1-4, it is characterized in that: described potentiometer is an angular position sensor, and its rotor connects described reduction gearing output shaft.

6, a kind of Actuator Of The Air Conditioner, comprise motor (4), reduction gearing mechanism and potentiometer (3), described motor output shaft connects described reduction gearing mechanism input shaft, and described reduction gearing mechanism comprises reduction gearing, and described reduction gearing has an output shaft and connects the adjustable end of described potentiometer; It is characterized in that: described reduction gearing mechanism comprises the second-stage worm gear train, the affixed described motor output shaft of its input shaft, its output shaft and reduction gearing engagement; Described potentiometer is an angular position sensor.

7, Actuator Of The Air Conditioner as claimed in claim 6, it is characterized in that: described second-stage worm gear train comprises first worm screw (1), second worm screw (2) and the second worm screw in-line gears (5), described second worm screw (2) and the second worm screw in-line gears (5) are coaxial affixed, the output shaft of the affixed described motor of described first worm screw (1), and mesh with the second worm screw in-line gears (5).

8, Actuator Of The Air Conditioner as claimed in claim 7, it is characterized in that: described reduction gearing comprises first reduction gearing (11) and second reduction gearing (12), described first reduction gearing, second reduction gearing respectively with described second worm mesh, the described second reduction gearing output shaft connects described angular position sensor rotor.

9, Actuator Of The Air Conditioner as claimed in claim 7 is characterized in that: described reduction gearing comprises first reduction gearing (11), and with described second worm mesh, described first gear, one end output shaft connects described angular position sensor rotor.

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