KR20110034921A - Electronic actuator - Google Patents

Abstract

PURPOSE: An electronic actuator is provided to implement a precise control by improving responsibility through a moving member fixed to a housing with a floating state. CONSTITUTION: A cover is formed on a hollow housing(50). A magnet unit(60) forms a magnetic circuit and provides magnetic force to the housing. A moving member is separated from the magnet unit and is fixed to the housing with a floating state. The moving member(70) moves with the interaction of the magnetic force and the electromagnetic force by generating the electromagnetic force. A connector(80) has a terminal for supplying power to the moving member. A fastener fixes the connector to the housing with an assembly type.

Description

Electronic Actuator {ELECTRONIC ACTUATOR}

The present invention relates to an electronic actuator operated by an electromagnetic force, and more particularly to an electronic actuator operated by the interaction of the magnetic force and the electromagnetic force of the magnet.

In general, an electronic actuator converts electrical energy into kinetic energy using electromagnetic force. Such electronic actuators include voice coils and solenoid valves of speakers.

As shown in FIG. 1, the electronic actuator moves the bobbin 20 by the interaction between the magnetic force generated in the magnet 22 and the electromagnetic force generated in the coil 21 of the bobbin 20. That is, the electronic actuator converts electrical energy applied to the coil 21 into kinetic energy required for moving the bobbin 20.

The electronic actuator shown in the related art is disclosed in Korean Patent Laid-Open Publication No. 194-7409 (boy coil solenoid valve) disclosed in Korean Patent Office. This prior art opens and closes the flow path 24 while the bobbin 20 moves by the kinetic energy as described above. At this time, the bobbin 20 opens the flow path 24 through the lower valve member 23. Then, the bobbin 20 shields the flow path 24 while being forcibly lowered by the coil spring 25 when electricity is not applied to the coil 21.

However, since the lower end of the bobbin 20 is fixed to the coil spring 25, the electronic actuator according to the related art has a problem that the magnetic circuit is not smoothly formed as well as low responsiveness.

In addition, the magnet 22 is provided on the inside and outside of the bobbin 20 as shown, there is also a problem that can not be manufactured in a compact size. Therefore, it is almost impossible to use in a vehicle using increasingly smaller parts.

In addition, there is a problem that the tension of the coil spring 25 can not be adjusted as needed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an electronic actuator fixedly movable in a state in which a moving element is suspended in an interior of a housing forming a magnetic circuit is formed by the interaction of magnetic and electromagnetic forces. The purpose is to provide.

In particular, it is an object of the present invention to provide an electronic actuator in which a magnetic force generating element is provided only inside the levitation element as described above, and a member for supplying power for generation of electromagnetic force is prefabricated to the aforementioned housing. to be.

Another object is to provide an electronic actuator in which a magnetic force generating element is fixed inside the housing together with a member forming a magnetic circuit, and further, the magnetic force generating element and the magnetic circuit generating element are fixed in a prefabricated manner.

In addition, as described above, while supplying power to the levitation element, the levitation element is fixed to the movable state inside the housing, and the structure is configured to elastically support the levitation element inside the levitation element Another object is to provide an electronic actuator.

In addition, another object of the present invention is to provide an electronic actuator provided with a mechanism capable of adjusting the elastic force of a member that elastically supports the levitation element.

Electronic actuator according to the present invention for achieving the above object is provided with a cover for shielding one side, a hollow housing for forming a magnetic circuit together with the cover; A magnet unit forming a magnetic circuit while providing a magnetic force inside the housing; While being spaced apart from the outside of the magnet unit and spaced apart in the levitation state inside the housing, it generates an electromagnetic force for the magnetic force of the magnet unit to move in the interior of the housing by the interaction of the magnetic force and the electromagnetic force Moving member; A connector provided with a terminal for supplying power to the moving member; And a fastener for prefabricating the connector to the housing.

The magnet unit may be, for example, a sleeve fixed to the cover and provided with a hook at an end thereof; A magnet fitted to the sleeve; It may be configured to include a yoke that is fitted to the sleeve in a state overlapped with the magnet, and to form a magnetic circuit in a fixed state by being caught by the hook hook of the sleeve.

The sleeve may include a plurality of hook hooks and may be spaced apart at equal intervals on the outer circumferential surface of the end portion.

The moving member may include, for example, a coil providing an electromagnetic force that interacts with a magnetic force of the magnet unit; The coil is fitted to the outside of the magnet unit through one side open in a wound state, the inner circumferential surface is spaced apart from the outside of the magnet unit, and the other side is generated in the magnet unit and the coil in a state in which the magnet unit is isolated Bobbin moved by the interaction of the magnetic and electromagnetic forces that become; A coupling member to movably couple the bobbin to an inside of the housing provided with the cover in a levitation state, and to apply power of the connector provided with the terminal to the coil; It may be configured to include an elastic member for elastically supporting the bobbin coupled to the inside of the housing by the coupling member inside the bobbin.

For example, the coupling member has an inner side fixed to at least one of both ends of the bobbin, an outer side fixed to the housing, and is connected to a terminal of the connector to receive power and a power source applied to the connecting terminal. A plurality of disk springs each provided with an application terminal applied to the coil; An inner fixing tool for fixing an inner side of the disc spring to at least one of both ends of the bobbin; It may be configured to include an outer fixing device for fixing the outer side of the disk spring to the housing provided with the cover.

The disk spring may be fixed by welding the applied terminal, for example.

The inner fixture is, for example, protrudingly formed at one end of the bobbin, the melting projection for integrally fixing the inner side of the disk spring to the end of the bobbin while being spread by heat fusion in the state penetrating the inside of the disk spring. It is preferable to comprise.

The outer fastener is formed of, for example, the outer edge of the disk spring, it is preferable that the gasket for fixing the outer side of the disk spring to the housing while being interposed between the cover and the housing.

The elastic member may include, for example, a through shaft having one end fixed to the cover while penetrating the cover of the housing and the other end penetrating through the magnet unit and positioned inside the bobbin; A stopper fixed to the end of the through shaft; A fixing member detachably fixing the stopper to an end of the through shaft; One end is constrained to the stopper fixed to the through shaft through the fixing member, it may be configured to include a coil spring for elastically supporting the other shielded side of the bobbin embedded in the bobbin.

The fixing member, for example, hemispherical hook formed on the other end of the through shaft; A locking protrusion protruding from the stopper and caught by the hemispherical hook; It is preferable to include a groove-like opening means formed on the side of the locking projection, and providing a space on the side of the locking projection so that the locking projection is opened to the side while being fitted to the hemispherical hook.

It is necessary to comprise the adjuster which is provided in the said through shaft which penetrates the said cover, and adjusts the tension of a coil spring while moving a through shaft.

The adjuster may be formed of, for example, an end tab formed at one end of the through shaft and screwed to the cover of the housing.

In addition, the present invention, the end tab is formed in the same, and further comprises a locker for partially shielding the screw groove along the axial direction of the end tab to prevent the end tab screwed to the cover to reverse rotation. You also need to.

On the other hand, the fastener is protruding to the connector, for example, it may be configured as a fixing projection for integrally fixing the connector to the end of the cover while being spread by heat fusion in the state of passing through the cover of the housing.

Electronic actuator according to the present invention as described above, because the magnetic force of the magnet unit and the electromagnetic force of the moving member interacts with the moving member fixed to the housing smoothly in the air floating state, such as voice coil, excellent response and precise control Has the possible effect.

Further, since the moving member is located outside the magnet unit and the magnet unit is provided only inside the moving member, there is an effect that the compact size can be miniaturized.

In addition, since the connector is fixedly assembled to the cover by the fastening protrusion of the fastener, and the magnet and the yoke are assembled to the sleeve, there is also an effect that the convenience in manufacturing is improved.

In addition, since the hooks are formed at the end portions of the sleeve at equal intervals, the magnet and the yoke can be more easily fixed to the sleeve.

In addition, the disk spring not only floats the bobbin inside the housing, but also applies power to the coil through the connecting terminal and the applying terminal, thereby securing the bobbin's mobility and providing a stable supply of power to the coil. have.

In addition, the elastic force of the coil spring can be adjusted by rotating the through shaft provided with the end tab of the adjuster, so that the pressing force of the coil spring against the bobbin can be adjusted to a desired state. There is also an effect that can prevent the departure.

In addition, since the inside of the disc spring is fixed to the bobbin by the melting projection which is the inner fixing member, and the outside of the disc spring is fixed to the inside of the housing by the gasket which is the outer fixing member, the disk spring is easily fixed to the inside of the housing. There is also an effect that can be done.

In addition, since the stopper is fixed to the end of the through shaft by the hemispherical hook and the locking protrusion, which are fixing members, the stopper can be easily fixed to the end of the through shaft. Furthermore, the stopper is smoothly opened by the groove-opening means so that the stopper penetrates the stopper. There is also an effect that can be more easily fixed to the end of the shaft.

Hereinafter, an electronic actuator according to the present invention will be described with reference to the accompanying drawings as follows, and FIG. 2 is an exploded perspective view of the electronic actuator according to an embodiment of the present invention, and FIG. 3 is an electronic diagram shown in FIG. 2. It is a longitudinal cross-sectional view of an actuator, and FIG. 4 is a perspective view of the through shaft shown in FIG. And, Figure 5 is a perspective view of the disk spring shown in Figure 3, Figure 6 is a perspective view of the sleeve shown in Figure 3, Figure 7 is a perspective view of the connector and the fixing ring shown in Figure 3, Figure 8 is Figure 3 The longitudinal cross-sectional view which shows the operating state of the electronic actuator shown in FIG.

2, the electronic actuator according to an embodiment of the present invention is composed of a cover 52, a housing 50, a magnet unit 60, a moving member 70 and a connector 80 as shown.

The cover 52 is formed in a disk shape as shown, and has a boss 52a that protrudes upwards and a side protrusion 52b that protrudes laterally. The cover 52 is formed with an internal thread engaged with the end tab 77a-2 of the through shaft 77a which will be described later on the inner circumferential surface of the boss 52a.

The housing 50 is a cylindrical hollow body as shown, and has a through groove 50a through which the side protrusion 52b of the cover 52 described above passes.

The magnet unit 60 is composed of a cylindrical sleeve 62, a ring-shaped magnet 64 and the yoke 66 as shown.

The moving member 70 includes a bobbin 73 in which a coil 71 is wound, a pair of disk springs 75 in which a gasket 73b is inserted at an outer edge thereof, and an end tab 77a- at one end thereof. It consists of the through shaft 77a, the stopper 77b, and the coil spring 77c in which 2) was formed. The moving member 70 has a connecting terminal 75a through which the gasket 73b penetrates at one end of the disk spring 75, and an O-ring is fitted at one end of the through shaft 77a. .

Referring to FIG. 3, the housing 50 is shielded by the cover 52, one side of which is open as shown. At this time, the cover 52 is coupled to one side of the housing 50 in a state in which the side protrusion 52b protrudes out of the housing 50.

The magnet unit 60 is fixed to the inside of the housing 50 as shown. The magnet unit 60 has a housing 50 as the magnet 64 and the yoke 66 are fitted in an overlapping state as shown in the drawing, and the sleeve 62 fixed to the boss 52a of the cover 52 is press-fitted. ) Is firmly fixed to the inside. In this case, the sleeve 62 maintains a non-contact state with the through shaft 77a and the inner circumferential surface spaced apart from each other, as shown below.

Here, the magnet 64 and the yoke 66 described above are integrally fixed to the sleeve 62 in accordance with the engaging hook 62a formed at the end of the sleeve 62 as shown.

The bobbin 73 of the moving member 70 is fixed to the outside of the magnet unit 60 in a state in which the coil 71 is wound as shown. This, the bobbin 73 has a structure in which one side is open and the other side is shielded. The bobbin 73 is fitted to the outside of the magnet unit 60 through an open one side, and is fixed to be movable in an airborne state inside the housing 50 by a coupling member to be described later. At this time, the bobbin 73 has an inner circumferential surface spaced apart from the magnet unit 60 as shown. The bobbin 73 is fitted to the outside of the magnet unit 60 while the other side is shielded as shown to isolate the magnet unit 60 from the inside of the housing 50. The bobbin 73 is elastically supported by the elastic member.

Here, the coupling member described above is a disk spring 75, the inside of which is fixed to both ends (top and bottom) of the bobbin 73, respectively, and the outside is fixed between the cover 52 and the housing 50. It is composed. The disk spring 75 is fixed on the inside by an inner fastener, and fixed on the outside by an outer fastener.

The inner fixing tool is a melting protrusion 73a which is formed to protrude in one end of the bobbin 73 as shown in the enlarged view "①". The molten protrusion 73a penetrates the inside of the disk spring 75 as shown in an enlarged manner, and is diffused by thermal fusion. Therefore, the melting protrusion 73a integrally fixes the inside of the disk spring 75 at the end of the bobbin 73. Of course, it is obvious that the disc spring 75 has a through hole 75 'through which the molten protrusion 73a penetrates.

The outer fixture is a gasket 73b formed in the same body on the outer edge of the disk spring 75 as shown. This gasket 73b is interposed between the cover 52 and the housing 50 as shown. That is, the gasket 73b is interposed between the cover 52 and the housing 50 as the gasket 73b is pressed onto the cover 52 while being seated on the upper end of the housing 50. Therefore, the gasket 73b fixes the outside of the disc spring 75 to the housing 50.

On the other hand, the elastic member described above, as shown in the through shaft (77a), the stopper (77b) and the fixing member, which is fitted and fixed to the end of the through shaft (77a) and the coil embedded in the other shielded side of the bobbin (73) A spring 77c.

As shown in the drawing, the through shaft 77a is fixed to the cover 52 while penetrating through the cover 52 of the housing 50. In addition, the other end of the through shaft 77a penetrates through the magnet unit 60 and is positioned inside the bobbin 73.

The stopper 77b is detachably fixed to the end of the through shaft 77a by the fixing member. The stopper 77b is formed in a hemispherical shape as shown in the enlarged view "2".

The fixing member protrudes from the hemispherical hook 77a-1 and the stopper 77b formed at the other end of the through shaft 77a, as shown in the enlarged view "②", and is fitted to the hemispherical hook 77a-1. It consists of a locking projection (77b-1) bent in the form of "a" and the opening means of the groove (77b-2) type formed on the side of the locking projection (77b-1). When the stopper 77b is fitted to the end portion of the through shaft 77a, the fixing member 77b-1 is opened by the hemispherical hook 77a-1. At this time, the locking projection 77b-1 is smoothly opened by the side groove 77b-2. Then, the locking projection 77b-1 is pinched and fixed to the hemispherical hook 77a-1 while being retracted when the insertion of the hemispherical hook 77a-1 is completed.

The coil spring 77c is embedded in the bobbin 73 with one end constrained to the stopper 77b as shown. The coil spring 77c elastically supports the other shielded side of the bobbin 73 inside the bobbin 73 as shown. The tension of the coil spring 77c is adjusted by an adjuster provided in the through shaft 77a.

The adjuster is an end tab 77a-2 formed at one end of the through shaft 77a and screwed to the cover 52 of the housing 50 as shown. The end tab 77a-2 moves the through shaft 77a by the rotation of the through shaft 77a. Therefore, the through shaft 77a adjusts the tension of the coil spring 77c while moving the stopper 77b.

On the other hand, as shown in the disk spring 75, the connecting terminal 75a and the applying terminal 75b are integrally provided at one edge and the other edge. The connection terminal 75a is connected to the terminal 82 of the connector 80 to receive power as shown. In addition, the application terminal 75b is connected to a part of the coil 71 to apply the power supplied from the connection terminal 75a to the coil 71. The application terminal 75b is fixed to the inner side of the disk spring 75 as it is spread while being melted by welding after the bent portion is penetrated into the inner side of the disk spring 75 as shown in the enlarged view "③". do.

On the other hand, as shown in the enlarged view "2", the stopper 77b is provided with a lower projection 77b 'on the lower surface. The lower protrusion 77b relieves the impact while contacting the bobbin 73 when the bobbin 73 moves.

On the other hand, the bobbin 73 may be provided with a contact projection (73f) in contact with the above-described lower projection (77b) while fixing the coil spring (77b) on the other side shielded as shown, such a contact projection (73f) Opposite side) may be provided with a pressing projection (73e) for pressing the valve member (VV) to be described later. Of course, the contact protrusion 73f is a member that mitigates the impact with the stopper 77b. The pressing protrusion 73e pressurizes the valve member VV only when the bobbin 73 descends. The pressing protrusion 73e is formed with a groove GR in the center as shown. The groove GR provides the initial stress to the valve member VV flowing by the pressure of the fluid. Therefore, the valve member VV operates smoothly when the bobbin 73 rises. That is, the valve member VV is improved in response by the groove GR when the bobbin 73 is raised.

On the other hand, reference numeral BA in the drawings is a base to which the housing 50 is fixed. In addition, reference numeral 92 is a fixing ring fixed to the base BA by the bolt 94. Reference numeral PA denotes a flow path through which fluid flows, and VV denotes a diaphragm valve member. In addition, reference numeral 80a is a fixing protrusion protruding from the connector 80, 80b is a fitting groove into which the fitting protrusion 92a of the fixing ring 92 to be described later is inserted, and 82 is inserted into the connector 80. It is a terminal 82 for applying power.

Here, the above-described fixing ring 92 has a fitting protrusion 92a on the opposite side of the bolt 94 as shown. The fitting protrusion 92a is inserted into the connector 80 as shown in order to prevent rotation of the connector 80.

In addition, the fixing protrusion 80a described above fixes the connector 80 to the side protrusion 52b of the cover 52.

Referring to FIG. 4, the through shaft 77a is provided with a locker LK at the end tab 77a-2 as shown. The locker LK is formed in the same shape in the end tab 77a-2, as shown in enlargement, and partially shields the screw groove along the axial direction of the end tab 77a-2. That is, the locker LK omits a portion of the screw groove formed in the end tab 77a-2. As described above, the locker LK prevents the end tabs 77a-2 screwed to the cover 52 from being released from the cover 52 while being reversed. In other words, the end tab 77a-2 is not released by the locker LK.

Referring to FIG. 5, the disk spring 75 is integrally fixed to the bobbin 73 by a melting protrusion 73a that is thermally fused as shown in an enlarged view. Further, the disc spring 75 is substantially the same as the applying terminal 75b because one end is bonded to the applying terminal 75b by welding.

Referring to FIG. 6, the sleeve 62 of the magnet unit 60 includes a plurality of hook hooks 62a at the end as shown in the drawing. The hook hook 62a is formed at equal intervals along the circumferential direction at the end of the sleeve 62 as shown. The hook hook 62 is easily elastically deformed as the magnet 64 and the yoke 66 are formed at equal intervals when they are fitted to the sleeve 62. Therefore, the magnet 64 and the yoke 66 described above are easily fitted and fixed to the sleeve 62.

Referring to FIG. 7, the fixing ring 92 is fitted to the connector 80 as shown in the drawing, and a fitting protrusion 92a for preventing rotation of the connector 80 is inserted into the fitting groove 80b of the connector 80. Is fixed. Then, the connector 80 is inserted into the projection hole (52b ') formed in the side projection (52b) of the cover 52 as shown in the enlarged fixed projection (80a) as shown in the enlarged, heat-sealed It is integrally fixed to the cover 52 as it is molded into a poppet shape while being melted by.

Referring to Figures 3 and 8 attached to the operation of the electronic actuator according to an embodiment of the present invention configured as described above are as follows.

Referring to FIG. 3, when the current is not applied to the coil 71 of the bobbin 73, the electronic actuator pressurizes the valve member VV through the bobbin 73 to open the flow path PA. Shield. Of course, the bobbin 73 pressurizes the valve member VV using the pressurizing protrusion 73e. At this time, the fluid supplied to the flow path (PA) is concentrated in the center of the pressing projection (73e) as the groove (GR) is formed in the center of the pressing projection (73e) to concentrate the stress.

The bobbin 73 presses the valve member VV in a state of being fixed to the inside of the housing 50 by the disk spring 75. At this time, the bobbin 73 presses the valve member VV by the elastic force of the coil spring 77b.

On the other hand, the tension of the coil spring 77b is adjusted when the through shaft 77a is rotated. At this time, the through shaft 77a is rotated by the end tab 77a-2 to press the coil spring 77b through the stopper 77b or to release the pressing force. This through shaft 77a is smoothly rotated because it is not in contact with the sleeve 62 as shown.

Referring to FIG. 8, when power is applied through the terminal 82 of the connector 80, the bobbin 73 may have a coil 71 through the connecting terminal 75a and the applying terminal 75b of the disk spring 75. As the power is supplied, the pressure of the valve member VV is released while moving as shown. At this time, the bobbin 73 moves as the electromagnetic force of the coil 71 and the magnetic force of the magnet 64 interact. As such, the interacting electromagnetic and magnetic forces move the bobbin 73 while circulating the yoke 66 and coil 71 and the housing 50 and cover 52 sequentially. Of course, the coil spring 77c is compressed while being supported by the stopper 77b as the bobbin 73 moves.

The valve member VV opens the flow path PA while moving upwards as shown by the bobbin 73. At this time, the valve member VV smoothly opens the flow path PA due to the stress caused by the pressure of the fluid concentrated in the groove GR of the pressing protrusion 73e of the bobbin 73. Therefore, the fluid is supplied to the side of the flow path PA as shown by the arrow shown by the broken line.

On the other hand, the disk spring 75 levitation of the bobbin 730 inside the housing 50 while guiding the moving bobbin 73. Therefore, the bobbin 73 moves smoothly.

Electronic actuator according to the embodiment of the present invention as described above, because the bobbin 73 of the moving member 70 operates like a voice coil by the interaction of the electromagnetic force and the magnetic force, excellent response and excellent precision control is possible.

Moreover, since the magnet unit 60 is provided in the inside of the bobbin 73, the compact size can be miniaturized.

In addition, since the connector 80 is fixed to the cover 52 by the fixing protrusion 80a, and the magnet 64 and the yoke 66 are fixed to the sleeve 62, the manufacturing convenience is improved.

In addition, since the hook hooks 62a are formed at the end portions of the sleeve 62 at equal intervals, the magnet 64 and the yoke 66 can be more easily fixed to the sleeve 62.

In addition, the disk spring 75 not only floats the bobbin 73 in the housing 50, but also applies power to the coil 71 through the connecting terminal 75a and the applying terminal 75b. The mobility of 73 can be secured and power can be stably supplied to the coil 71.

In addition, since the elastic force of the coil spring 77c can be adjusted by rotating the through shaft 77a provided with the end tab 77a-2, the pressing force of the coil spring 77c with respect to the bobbin 73 can be adjusted to a desired state. Further, since the locker LK is provided at the end tab 77a-2, the through shaft 77a may be prevented from being separated from the cover 52.

In addition, since the inner side of the disk spring 75 is fixed to the bobbin 73 by the melting protrusion 73a, and the outer side of the disk spring 75 is fixed to the inside of the housing 50 by the gasket 73b, the disk The spring 75 can be easily fixed to the inside of the housing 50.

In addition, since the stopper 77b is fixed to the end of the through shaft 77a by the hemispherical hook 77a-1 and the locking protrusion 77b-1, the stopper 77b is easily fixed to the end of the through shaft 77a. Further, since the locking projection 77b-1 is smoothly opened by the groove 77b-2, the stopper 77b can be more easily fixed to the end of the through shaft 77a.

Since the above embodiments are merely illustrative of preferred embodiments of the present invention, the scope of application of the present invention is not limited to the above, and appropriate modifications are possible within the scope of the same idea. Therefore, since the shape and structure of each component shown in the embodiment of the present invention can be carried out by deformation, it is natural that the modification of the shape and structure belong to the appended claims of the present invention.

1 is a longitudinal sectional view of an electronic actuator according to the prior art;

2 is an exploded perspective view of an electronic actuator according to an embodiment of the present invention;

3 is a longitudinal sectional view of the electronic actuator shown in FIG. 2;

4 is a perspective view of the through shaft shown in FIG. 3;

FIG. 5 is a perspective view of the disk spring shown in FIG. 3; FIG.

6 is a perspective view of the sleeve shown in FIG. 3;

7 is a perspective view of the connector and the retaining ring shown in FIG. And

8 is a longitudinal sectional view showing an operating state of the electronic actuator shown in FIG.

<Description of Major Symbols in Drawing>

50: housing

52: cover

60: magnet unit

70: moving member

80: connector

92: retaining ring

Claims (14)

In the electronic actuator, A cover 52 shielding one side and a hollow housing 50 forming a magnetic circuit together with the cover 52; A magnet unit forming a magnetic circuit while providing a magnetic force in the housing 50; While being spaced apart from the outside of the magnet unit and the gap is fixed to be movable in the levitation state inside the housing 50, by generating an electromagnetic force for the magnetic force of the magnet unit by the interaction of the magnetic force and the electromagnetic force 50 Moving member moving inside of; A connector (80) provided with a terminal (82) for supplying power to the moving member; And Electronic actuator including a fastener for prefabricating the connector (80) to the housing (50). The method of claim 1, wherein the magnet unit, A sleeve 62 fixed to the cover 52 and provided with a hook hook 62a at an end portion thereof; A magnet 64 fitted to the sleeve 62; And An electronic actuator including a yoke 66 that is fitted to the sleeve 62 in a state of being superimposed on the magnet 64, and that forms a magnetic circuit in a fixed state by being caught by a hook hook 62a of the sleeve 62. . The method of claim 1, wherein the sleeve 62, The engaging hook (62a) is composed of a plurality of electronic actuators, characterized in that formed on the outer peripheral surface of the end spaced at equal intervals. The method of claim 1, wherein the moving member, A coil 71 providing an electromagnetic force interacting with the magnetic force of the magnet unit; The magnet 71 is fitted to the outside of the magnet unit through one side of the coil 71 in an open state, the inner circumferential surface is spaced apart from the outside of the magnet unit, and the other side is shielded to isolate the magnet unit. A bobbin 73 moving by the interaction of magnetic and electromagnetic forces generated in the coil 71; The bobbin 73 is movably coupled to the inside of the housing 50 provided with the cover 52 in a levitation state, and a power source of the connector 80 provided with the terminal 82 is supplied to the coil ( A coupling member applied to 71); And Electronic actuator comprising an elastic member for elastically supporting the bobbin (73) coupled to the inside of the housing (50) by the coupling member in the bobbin (73). The method of claim 4, wherein the coupling member, A connection terminal 75a having an inner side fixed to at least one of both ends of the bobbin 73 and an outer side fixed to the housing 50 and connected to a terminal 82 of the connector 80 to receive power. And a plurality of disk springs 75 each having an application terminal 75b for applying the power applied to the connection terminal 75a to the coil 71; An inner fixture fixing an inner side of the disc spring 75 to at least one of both ends of the bobbin 73; And And an outer side fixing tool for fixing the outside of the disc spring (75) to the housing (50) provided with the cover (52). The method of claim 5, wherein the disk spring 75, Electronic actuator, characterized in that the applying terminal (75b) is fixed by welding. The method of claim 5, wherein the inner fastener, One end of the bobbin (73) is formed to protrude in the same body, while the inner side of the disk spring (75) is integral with the end of the bobbin (73) while being diffused by heat welding while penetrating the inside of the disk spring (75). An electronic actuator, characterized in that the molten projection (73a) fixed to. The method of claim 5, wherein the outer fastener, The gasket 73b is formed on the outer edge of the disc spring 75 and is fixed between the cover 52 and the housing 50 and fixes the outside of the disc spring 75 to the housing 50. An electric actuator characterized by the above-mentioned. The method of claim 4, wherein the elastic member, A through shaft (77a) having one end fixed to the cover (52) while penetrating the cover (52) of the housing (50), and the other end passing through the magnet unit and positioned inside the bobbin (73); A stopper 77b that is fitted to and fixed to an end of the through shaft 77a; A fixing member detachably fixing the stopper 77b to an end of the through shaft 77a; And One end is constrained to the stopper 77b fixed to the through shaft 77a through the fixing member, and the coil spring elastically supports the other shielded side of the bobbin 73 while being embedded in the bobbin 73. An electronic actuator comprising 77c. The method of claim 9, wherein the fixing member, A hemispherical hook 77a-1 formed at the other end of the through shaft 77a; A locking protrusion 77b-1 protruding from the stopper 77b and being caught by being fitted to the hemispherical hook 77a-1; And It is formed on the side of the locking projection (77b-1), and the space on the side of the locking projection (77b-1) so that the locking projection (77b-1) that opens while being fitted to the hemispherical hook (77a-1) is opened to the side. An electronic actuator comprising an opening means in the form of a groove (77b-2) provided. The method of claim 9, And an adjuster provided on the through shaft (77a) passing through the cover (52) and adjusting the tension of the coil spring (77c) while moving the through shaft (77a). The method of claim 11, wherein the adjuster, And an end tab (77a-2) formed at one end of the through shaft (77a) and screwed to the cover (52) of the housing (50). 13. The method of claim 12, The end tabs 77a-2 formed in the same shape as the end tabs 77a-2 and partially screwed in the axial direction of the end tabs 77a-2 are screwed to the cover 52. Electronic actuator further comprises a locker (LK) to prevent the reverse rotation. The method according to any one of claims 1 to 13, The fastener, Fixing protrusions protruding from the connector 80 and being integrally fixed to the ends of the cover 52 while being diffused by heat fusion in a state that penetrates the cover 52 of the housing 50. An electronic actuator, which is 80a.

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