KR19980021593U - Electrically Controllable Throttle Body - Google Patents

Abstract

The case 1, the motor 2 provided in the space separate from the lower end of the case 1, the power gear 3 provided in the rotating shaft of the said motor 2, and the said power gear The reduction gear 4 which is gear-coupled to (3), the throttle valve 5 which opens and closes by being driven by the rotation shaft of the said reduction gear 4, the tip of the rotation shaft of the said throttle valve 5, and said The clutch plate 6 which is provided at the end of the rotary shaft of one reduction gear 4 and is engaged or dropped with each other and transmits or blocks rotational power, and the clutch plate 6 is separated by the force of magnetic force when a power is applied. Electromagnet 7 for pulling the reduction gear side clutch plate so that power transmission is interrupted, and a compression spring 8 for attaching the clutch plate 6 to push the reduction gear side clutch plate so that power transmission can be achieved. And the throttle valve 5 is distal A torsion spring 9 for providing a restoring force, a throttle position sensor that detects the opening angle of the throttle valve 5 and converts it into an electrical signal, and a rotation shaft to assist the rotation of the rotation shafts. Each bearing 11 is provided, and the opening angle of the throttle valve is electrically controlled to provide an electrically controllable throttle body capable of precisely controlling the air intake amount.

Description

Electrically Controllable Throttle Body

The invention relates to an electrically controllable throttle body, more specifically to an electrically controllable throttle body that allows precise control of air intake by allowing the opening angle of the valve to be controlled electrically. It is about.

In general, the air sucked from the air cleaner (air cleaner) is measured by the air flow sensor (Air Flow Sensor, AFS), after the air volume is adjusted through the throttle body is introduced into the surge tank (surge tank), It is distributed from the surge tank to the intake manifold of each cylinder, mixed with fuel injected from the injector, and then sucked into the cylinders to allow the engine to operate.

At this time, the driver can adjust the output of the engine by controlling the amount of air supplied to the surge tank by adjusting the opening angle of the throttle valve of the throttle body using the accelerator pedal.

However, since the conventional throttle body is simply mechanically linked to the accelerator pedal to adjust the opening angle of the valve, the automatic throttle control system (Traction Control Sytedm, TCS), etc. Likewise, there is a problem that the microcontroller is not suitable for use in an engine system that requires precise control of the air intake by requiring accurate engine power.

An object of the present invention is to solve the conventional problems as described above, and to provide an electrically controllable throttle body capable of precisely controlling the air intake amount by allowing the opening angle of the valve to be controlled electrically. .

1 is a cross-sectional structural view of an electrically controllable throttle body according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

1: Case 2: Motor

3: power gear 4: speed reduction gear

5: Throttle Valve 6: Clutch Plate

7: electromagnet 8: compression spring

9: torsion spring 10: throttle position sensor

11: bearing

As a means for achieving the above object, the constitution of the present invention includes a case, a motor provided in a space separate from the lower end of the case, a power gear provided in a rotating shaft of the motor, and the power gear described above. And a throttle valve which opens and closes the air passage by being driven by the reduction gear geared to the gear, the rotation shaft of the reduction gear, and the end of the rotation shaft of the throttle valve and the rotation shaft of the reduction gear 4 above each other. A clutch plate which transmits or blocks rotational power by falling or falling, an electromagnet that pulls the clutch plate on the reduction gear side such that the clutch plate falls by the force of the magnetic force when the signal is applied, and power transmission is interrupted; A compression spring for pushing the side clutch plate so that the clutch plate can be attached to achieve power transmission; A torsion spring for providing a restoring force so that the deadline throttle valve can be returned to its original position, a throttle position sensor for detecting the opening angle of the throttle valve and converting it into an electrical signal, and for each rotation axis to help the rotation of the rotation shafts. It consists of a number of bearings each installed.

Hereinafter, the most preferred embodiments of the present invention will be described with reference to the accompanying drawings in order to be described in detail that can be easily carried out by those of ordinary skill in the art.

1 is a cross-sectional structural view of an electrically controllable throttle body according to an embodiment of the present invention.

As shown in FIG. 1, a configuration of an electrically controllable throttle body according to an embodiment of the present invention includes a case 1 and a motor 2 installed in a separate space at a lower end of the case 1. And driven by the power gear 3 provided on the rotary shaft of the motor 2, the reduction gear 4 geared to the power gear 3, and the rotation shaft of the reduction gear 4. The clutch plate which is installed at the end of the rotary shaft of the throttle valve 5 and the end of the rotary shaft of the throttle valve 5 and the rotary shaft of the reduction gear 4 is attached or dropped to each other to transfer or block the rotational power. (6), an electromagnet (7) which pulls the reduction gear side clutch plate so that the clutch plate (6) falls by the force of magnetic force and the power transmission is interrupted when the power is applied, and the reduction gear side clutch described above. Clutch plate (6) by pushing the plate Compression spring 8 to allow power transmission to be made, torsion spring 9 to provide restoring force so that the throttle valve 5 can be returned to its original position, and opening angle of the throttle valve 5. And a throttle position sensor (TPS) for detecting the electrical signal and converting it into an electrical signal, and bearings 11 provided for each rotation shaft to assist the rotation of the rotation shafts.

By the above configuration, the action of the electrically controllable throttle body according to the embodiment of the present invention is as follows.

When power is applied to the motor 2 by a control unit (not shown), the motor 2 is rotated so that the power gear 3 mounted on the rotating shaft of the motor 2 is rotated. The reduction gear 4 meshed with (3) rotates.

At this time, if a signal is not applied to the electromagnet 7 from the control unit, the clutch plate 6 is engaged by the restoring force of the compression spring 8, and accordingly, the throttle valve 5 is rotated together with the rotation of the reduction gear 4. Will be opened.

In this case, the opening angle of the throttle valve 5 is converted into an electrical signal by the throttle position sensor 10 and fed back to the controller, and the controller uses this to determine the driving of the motor 2, thereby determining the throttle valve 5. Is electrically controlled.

In the case where the throttle valve 5 is mechanically operated in conjunction with the accelerator pedal, the control unit stops driving of the motor 2 and at the same time generates power by applying power to the electromagnet 7 to produce a clutch plate. (6) should fall. Therefore, the counter electromotive force is prevented from occurring in the motor 2 by the mechanical driving of the throttle valve 5.

The two clutch plates 6 are separated from each other by moving the reduction gear side clutch plate to the right. At this time, the rotation shaft of the reduction gear 4 is also moved to the right together with the clutch plate to release the coupling with the reduction gear 4. . Guide holes are formed on the inner circumferential surface of the reduction gear 4, and guide rails are also formed on the outer circumferential surface of the reduction gear rotation shaft to engage or disengage each other as the rotation shaft moves.

If the operator does not step on the accelerator pedal, the throttle valve 5 returns to its original position by the restoring force of the torsion spring 9, and in this case, the opening angle of the throttle valve 5 is set by the throttle position sensor 10. The signal is converted into an ordinary signal and fed back to the controller.

As described above, in the embodiment of the present invention, it is possible to provide an electrically controllable throttle body having the effect of precisely controlling the air intake amount by allowing the opening angle of the valve to be controlled electrically. This effect of the present invention can be modified and used by those skilled in the art without departing from the gist of the present invention in the field of throttle bodies of automobile engines.

Claims (2)

The case 1, the motor 2 provided in the space separate from the lower end of the case 1, the power gear 3 provided in the rotating shaft of the said motor 2, and the said power gear The reduction gear 4 which is gear-coupled to (3), the throttle valve 5 which opens and closes by being driven by the rotation shaft of the said reduction gear 4, the tip of the rotation shaft of the said throttle valve 5, and said The clutch plate 6 which is provided at the end of the rotary shaft of one reduction gear 4 and is engaged or dropped with each other and transmits or blocks rotational power, and the clutch plate 6 is separated by the force of magnetic force when a power is applied. Electromagnet 7 for pulling the reduction gear side clutch plate so that power transmission is interrupted, and a compression spring 8 for attaching the clutch plate 6 to push the reduction gear side clutch plate so that power transmission can be achieved. And the throttle valve 5 is distal A torsion spring 9 for providing a restoring force, a throttle position sensor that detects the opening angle of the throttle valve 5 and converts it into an electrical signal, and a rotation shaft to assist the rotation of the rotation shafts. Electrically controllable throttle body, characterized in that it comprises a plurality of bearings (11) which are provided for each. The method of claim 1, wherein the inner circumferential surface of the reduction gear 4 is formed with a guide hole, and the guide rail is formed on the outer circumferential surface of the reduction gear rotation shaft, so that the structure is coupled to or released from each other according to the movement of the rotation shaft. Electrically controllable throttle body.