RU14623U1 - HEATER DAMPER CONTROL MOTOR - Google Patents

Description

Motored heater control flap.

The utility model relates to management.

Known gear motor control damper heater VAZ-2110 IZHEA.524212.044TU. The motor damper control valve is designed for installation on the vehicle heater to control the position of the damper to regulate air flow; coming from the heater to the car interior. The design of the above gearmotor is as follows: the electric motor is combined with a planetary gearbox. A shaft position sensor is mounted on top of the planetary gearbox. There are feet on the shaft position sensor through which the gearmotor is mounted on the heater. When installing the gearmotor on the heater, it is away from the shaft of the heater damper. The force from the output of the gearmotor is transmitted to the shaft of the heater damper through a system of levers.

The features of this design of the gearmotor are:

-installation of the gearmotor away from the heater damper;

 the use of a system of levers for transmitting torque from the output of the gearmotor to the heater damper shaft, which causes the use of unnecessary parts and, ultimately, due to backlash in the parts to be joined, does not provide a tight pressure on the heater damper in extreme positions and causes the heater damper to play in other positions;

- the use of a planetary gearbox combined with an electric motor causes the use of gears with small tooth modules, which, under extreme loads and prolonged operation, leads to the destruction of gears to the failure of the gearmotor.

The objective of the proposed technical solution is to eliminate the above features in the application and operation of the gear motor.

The problem is solved in that, in contrast to the gear motor for controlling the damper of a car heater, consisting of an electric motor with a combined planetary gearbox. a position sensor of the gearmotor shaft located on top of the planetary gearbox and containing paws for attaching the gearmotor to the motor. the gearmotors from the shaft position sensor have been transferred to the housing, the planetary gearbox has been replaced. many are available with a worm-spur gearbox, placed inside the gearmotor housing, the lever system for transmitting the moment is excluded, the moment is removed directly from the output shaft of the gearmotor and the gearmotor is installed directly on the heater damper shaft.

The principle of operation of the motors-tor is illustrated by drawings. In FIG. 1 shows a general view of the gearmotor from the output shaft side, FIG. 2 shows a side gearmotor, FIG. 3 shows a gearmotor without a top cover, FIG. 4 shows a gearmotor without a top and an intermediate cap, and FIG. 3 shows a sectional view of a gearmotor AA figure 4.

The gearmotor housing is assembled and consists of a base, an intermediate cover 2 and an upper roof 3, fastened together by screws 4. An electric motor 5 with a pressed worm 6 is installed

on the basis of 1. In the same place, on the basis of I, the gear unit small 7, the gear unit large 8 and the gear room 9 are fastened, the end of which protrudes outside and the square part 9a is mounted directly on the heater shaft, and the other end 96 is located inside the housing . All gears are mounted on shafts 10, the lower end of which is fixed in the base 1, and the upper end in the clamp of the intermediate 2. A sleeve 11 is put on the end of the output shaft 96, through which the position sensor 12 is connected to the output shaft of the gearmotor. On the base I there are tabs 14, through which the gearmotor is attached to the heater body.

The gearmotor works as follows: when voltage is supplied through the connector 13 to the electric motor 5, it starts to rotate, through the worm 6, gears 7 and 8, the rotation is transmitted to the output shaft 9, which protrudes directly on the heater damper shaft by the protruding part 9a, mounted directly on the heater damper shaft. When the polarity of the lithium voltage applied to the motor changes, the output shaft rotates in the opposite direction. The gearmotor itself is mounted on the heater through tabs 14 and secured with screws (screws not shown).

The proposed technical solution allows you to install the gearmotor directly on the damper shaft of the heater, eliminate the lever system for transmitting torque from the gearmotor to the heater damper shaft and increase the reliability of the gearbox due to the use of gears with large modules.

The design of the gear motor provides multiple repetition in the manufacture. All body parts were made; it was made of plastic by injection molding. Worm, gears can be made of plastic as well

and from metal on standard metal processing and gear cutting equipment. In addition, the gearmotor can be used not only to control the damper of the heater, but also for other purposes.

The prototypes of the gearmotor are made, tested and fully confirmed the correctness of the proposed tezhnichvzhzhogo solutions.

Claims (1)

A motor heater control valve for a car heater, consisting of an electric motor with a combined planetary gearbox, a gearmotor shaft position sensor located on top of the planetary gearbox and containing a motor mounting tab on the heater, a lever system for transmitting torque from the electric motor to the heater damper shaft, characterized in that the electric motor is located in the gearmotor housing, the gearmotor shaft position sensor is located in the gearmotor housing, the gearmotor mounting tabs from the sensor Proposition shaft transferred to the housing, the planetary gear unit is replaced by a multistage cylindrical worm-gear placed inside the gearmotor casing, a system of levers for transmitting torque is excluded, the moment is taken directly from the output shaft and the motor-reducer gearmotor is mounted directly on the heating valve shaft.