KR20160134556A - Actuator - Google Patents

Abstract

The present invention relates to an actuator comprising an electromagnet, an armature and an integrated switching mechanism drive-controllable by a low current. The present invention provides an actuator capable of integrating an electronic circuit directly into the actuator, thereby simplifying drive-control of the actuator.

Description

Actuator {ACTUATOR}

The present invention relates to an actuator.

Solenoid actuators are widely deployed in the industrial, automotive and process technologies. These solenoid actuators are used, for example, for positioning work or for valves.

As such a main part of the actuator, there can be mentioned an electromagnet having armatures, which are used for generating a mechanical movement.

Additional electronic components typically include only interference suppression components such as, for example, free-wheeling diodes, rectifier diodes, or flyback diodes.

For this reason, for drive control, an external switching mechanism for actuator operation is essential, where the entire coil current flows through the switching mechanism. This process also increases circuit complexity within the control device.

An object of the present invention is to provide an actuator capable of integrating an electronic circuit directly into an actuator, thereby simplifying drive control of the actuator.

In the present invention, the electronic circuit is directly integrated into the actuator, thereby simplifying the drive control of the actuator. Such drive control is performed by a simple control signal, for example, and can be performed without a high current.

It is also possible to incorporate additional functions into the actuator.

These functions may be, for example, a constant current source, an additional EMC protective circuitry, a diagnostic function or position feedback.

In other words, the drive control electronics are directly integrated into the solenoid actuator, and the external drive control electronics can be omitted by this method. There is also the possibility to integrate additional functions into the actuator.

Unlike the prior art to date, individual components such as, for example, reflux diodes, are incorporated into solenoid actuators as well as electronic devices with larger volumes, including circuits. At this time, in the actuator, the two coil connection portions are not guided to the outside, and at least the lines for the power supply device and the switch input portion are guided. By integrating the drive control electronics into the actuator, drive control of the actuator is simplified, so that power levels can be saved, for example, in the control device. With the possibility of integrating additional functions in the actuator, actuators with different types of function / drive control related to hardware and / or software can be connected to the hardware and / or software without changing the control device. Further, the drive control signal itself can be executed according to the design of the control device, in other words, it can be adjusted appropriately for the design of the control device. Additional position feedback and / or additional diagnostic functions may result in better monitoring of the actuator. Since the drive control electronics are located very close to the coil, better electromagnetic compatibility properties are given.

The electronic device unit should be placed as close to the coil as possible. In the case of a solenoid valve, it is placed, for example, between the coil and the valve housing or on / next to the coil. The electrical connection of the drive control electronics to the actuator must be carried out preferably through so-called "lead frames" rather than through cables / plug connectors.

More flexible adaptation to the situation is possible, and customers can realize cost savings with smaller size controls. Additional actuator functions may be reinforced, for example, in the model maintenance range, without costly fluctuations in the control device. Due to the better electromagnetic compatibility properties, the application of solenoid actuators is simplified.

1 is a cross-sectional view showing an embodiment of an actuator according to the present invention.

In the figure, the coils are denoted by "1" and the "brackets" are denoted by "2 ", where the actuators according to the invention can for example be fixed by means of the coils. "3" designates a cover, and "4" designates a valve body that is basically Z-shaped in the illustrated embodiment, , Extending perpendicularly to two other legs corresponding to the supply line and the discharge line. Also, in the illustrated example, there is a valve tappet 5 in the central leg of the "Z-shaped " to open or block the fluid through-hole. In the example shown, the valve tappet also moves essentially perpendicular to the feed line and the discharge line, and the valve tappet, in particular the valve seat, interacts with the plate of the valve tappet having the seal in the illustrated embodiment the plane of the valve seat is essentially parallel to the flow direction in the supply line and the discharge line.

As can be seen in the figure, the actuator incorporates an electronics housing 6, which comprises a printed board 7, for example with electronic components. In the illustrated embodiment, the electronics housing 6 is located between the base plate 8 of the coil and the valve body 4. As shown in the right area of the drawing, the lines for the power supply and switch inputs are guided from the circuit board 7 to the sockets (which can also be realized as plugs). With respect to the embodiment shown in the drawings, an electronic device housing having an electronic device provided therein, such as, for example, a circuit board, electronic components and all the parts mentioned in connection therewith, That is to say on the other side of the valve housing or next to the coil in any way. The arrangement scheme arranged next to the last mentioned coil means the displacement of the electronics housing relative to the coil in a direction perpendicular to the direction of movement of the armature in the coil.

As shown in the figure, the circuit board may surround the valve tappet and / or the guide provided for it, and the circuit board may be basically aligned perpendicular to the direction of movement of the valve tappet. The lines extending from the circuit board 6 may first be installed far away from the coil 1, in this case basically proceeding at approximately 90 degrees of bend, and at approximately 70 to 90 degrees at the side of the coil, Lt; / RTI >

The mutual combination of all the above features is itself regarded as important in the present invention.

1: Coil
2: Bracket
3: cover
4: Valve body
5: Valve tappet
6: Electronic device housing
7: Circuit board
8: Base plate

Claims (7)

An actuator comprising an electromagnet, an armature and an integrated switching mechanism drive controllable by a low current. The method according to claim 1,
Wherein the electrical connection between the switching mechanism and the actuator is via at least one lead frame. 3. The method according to claim 1 or 2,
Wherein the armature is provided with a valve plate and the switching mechanism is disposed between the valve plate and the electromagnet. 4. The method according to any one of claims 1 to 3,
Characterized in that the switching mechanism is arranged between the end of the valve body, in particular the valve body, towards the electromagnet and the end of the electromagnet, in particular towards the valve body. The method according to any one of claims 1 to 4,
Characterized in that the printed board (6) of the switching mechanism surrounds a valve tappet connected to the armature and / or to this armature. 6. The method according to any one of claims 1 to 5,
Characterized in that the switching mechanism comprises its own housing (6). 7. The method according to any one of claims 1 to 6,
Characterized in that the switching mechanism further comprises at least one constant current source and / or an EMC protective circuitry and / or a diagnostic and / or position feedback device.

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