JPS59109736A - Driving device for damper - Google Patents

Abstract

PURPOSE:To simplify the construction of a damper-driving device by providing a control circuit of the device and a potentiometer on one pattern plate to dispense with wire connections between them and to combine them in a package. CONSTITUTION:When a switch of an air conditioner is made and the degree of the opening of a damper 600 is set by a setter 100, a control circuit 200 makes a motor 10 rotate, and the rotation of the motor 10 is decelerated by means of a worm 11, a helical gear 12, a spur gear 14 and an output gear 15 provided around a shaft 14 and an output shaft 16 passed through a shaft hole 8 and an output shaft hole 5 in a printed circuit board 1 respectively. When the damper 600 is moved by the projection 19 of an arm 17, a spring material 20 fixed to the output gear 15 moves slidably on a common contact 6 and a resistor 7, and based on the resistance value of the resistor, the position of the damper 600 is fed back to the control circuit 200. The control circuit 200 receiving the fed- back value compensates a set value with the fed-back information to set the damper 600 correctly at a set position. Since the wirings of the control circuit 200 and a potentiometer 400 are printed on the printed circuit board 1, the number of components and the processes of assembly can be lessened.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a damper drive device that is located in a blower duct of an air conditioner or the like and that switches an outlet or a mixture ratio.

゛As shown in Fig. 1, the conventional damper drive device includes a setting device 100 that sets the damper opening, a control circuit 200 that controls the motor section 300, a motor section 300 that drives the damper 600, and detects the damper opening. potentiometer 400
The configuration was equipped with a servo motor section 500 provided with. In this device, when the damper opening degree is set using the setting device lOO, the control circuit 200 controls the motor section 30 of the servo motor section 500.
0 to open the damper 600. When the potentiometer 400 detects the positron of the damper 600 and applies a feedback to the control circuit 200, the control circuit 200 applies control so that the setting value of the setting device 100 and the position of the damper 600 are made equal. However, with this configuration, since the control circuit 200 and the servo motor section 500 are separate, the wires connecting the case of each device and the devices are extremely wasteful.

The present invention solves the above problems by providing the control circuit of the damper drive device and the potentiometer on a single substrate, eliminating the wire connection between them, and integrating them into a package, making it possible to easily configure the device. The object of the present invention is to provide a damper drive device for a device.

In other words, a printed circuit board that integrates a control circuit that controls the motor section and a potentiometer that detects the position of the damper, a motor that is a power source, and a deceleration device that decelerates the motor are integrated into a package.

The present invention will be described below with reference to embodiments shown in the drawings.

FIG. 2 shows a configuration according to the present invention, in which a control circuit 200
The motor section 300 and potentiometer 400 are combined into one integrated package 700. FIG. 3 is a detailed diagram of the integrated package 700. The printed pattern on the printed circuit board 1 is printed on one side, and the control circuit 200
As the control circuit pattern 2 and what is connected to it,
Connector connection patterns 3a, 3b, 3c, 3d, motor connection patterns 4a, 4b, and potentiometer 4
00, there is a common contact 6 that surrounds the output shaft hole 5 in a circular manner, and a resistor 7 that is located outside the common contact 6 and has an arc shape. The connector 9 connects the setting device 100 to the power supply and ground, and has connector terminals 9a, 9b, 9c.
, 9d as connector connection pattern 3a of printed circuit board 1
, 3b, 3c.

3d and connect them in correspondence with each other. The motor 10 is connected with motor terminals 10a and 10b corresponding to the motor connection patterns 4a and 4b of the printed circuit board 1, respectively. motor 10
is equipped with a worm 11 which engages with a helical 12 to slow down the rotation of the motor 10. Helical 12 is shaft 1
4 is integrated with the spur gear 13, and the shaft 1 is connected from the side of the printed circuit board 1 where the printed pattern is not printed.
4 through the shaft hole 8. The shaft hole 8 in the printed circuit board 1 has a diameter that does not allow the spur gear 13 to come into contact with it, and the spur gear 13 meshes with the output gear 15 to reduce the speed again. The output gear 15 is integrated with the output shaft 16 and is connected to the output shaft hole 5.
Pass one side of the output shaft 16 through from the side on which the print pattern is printed. The other end of the output shaft 16 is fixed to a mounting hole 18 of an arm 17, and this arm 17 is provided with a projection 19 and is connected to a damper 600.

FIG. 4 shows the configuration of the potentiometer section 400. The figure omits the output gear [5] and the output shaft 16. The conductive spring material 20 has contacts 20a and 2Qb, slides on the common contact 6 and the resistor 7, respectively, and is fixed to the mounting hole 15a of the output gear 15 with a pin 21. The printed circuit board l and the motor 10 are fixed to the same case (not shown), the shaft 14 and this case are lubricated with oil, and the output shaft 16 is lubricated by installing a metal piece shown in Fig. 5 in the case. There is.

Next, the operation of the above configuration will be explained. When the air conditioner switch is turned on and the opening degree of Danharrow 00 is set using the setting device 100, the control circuit 200 rotates the motor 10, and the shaft hole 8. The worm 11. is centered around the shaft 14 passed through the output shaft hole 5 and the output shaft 16.
Helical 12° spur gear 14. The rotation of the motor 10 is decelerated by the output gear 15. When the arm 17 moves the damper 600 with the protrusion 19, the spring material 20 fixed to the output gear 15 slides on the common contact 6 and the resistor 7, and the position of the damper 600 is controlled by the control circuit 20 based on the resistance value.
0 Hefeid bathok. The control circuit 200 that has received the feed correction corrects the set value and the feedback information to correctly set the damper 600 to the set position. Furthermore, since the control circuit and potentiometer wiring are printed on the printed circuit board 1, the number of parts and the number of assembly steps are reduced.

In addition, there are the following as other embodiments of the present invention.

As shown in FIG. 6, in the reduction gear of the motor 10, a rotation plate 22 is used in place of the output gear 15 to reduce the rotation and make linear motion to move the Danno F600.

The motor 10 and its speed reduction device are constructed as shown in FIG. 7.8.

As described above, according to the present invention, the control circuit and the potentiometer are provided on a single board, eliminating the wire connection between them, and mounting the edge on the package, which simplifies the configuration of the device.
An excellent effect is that it is possible to provide a damper drive device for air conditioning equipment that reduces assembly man-hours.

[Brief explanation of drawings]

FIG. 1 is a conventional overall configuration diagram, FIG. 2 is an overall configuration diagram according to the present invention, FIG. 3 is a detailed diagram of an integrated package according to the present invention, and FIG. 4 is a configuration diagram of a potentiometer section according to the present invention.
Figure 5 is an explanatory diagram of the metal that lubricates the output shaft, Figure 6
．． Figure 7.8 is an explanatory diagram of another embodiment of the present invention. 100... Setting device, 200... Control circuit, 300...
...Motor part, 400...Potentiometer, 600
...Damper, 700...Integrated package, ■...
Printed circuit board, IO...Motor, 11...Worm, 12...Helical, 13...Spur gear, 15...
...Output gear, 17...Arm. Representative Patent Attorney Takashi Okabe

Claims (1)

[Claims] A motor that is a power source, a control circuit that controls the motor, a damper that is located in a blower duct that switches the outlet and adjusts the air-fuel mixture ratio, and a speed reduction device that decelerates the rotation of the motor and drives the damper. , a damper drive device for an air conditioner equipped with a potentiometer that detects the opening degree of the damper and applies correction to the control circuit; A damper drive device for air conditioners that integrates the device and motor into a package.