KR101876496B1 - Actuator Having Valve - Google Patents

Abstract

The present invention relates to an actuator body including a seating portion provided with a seating space recessed from an upper surface toward an inner space and provided with a seating space communicated with the inner space, and a standby port for introducing an external atmospheric pressure into the inner space, ; A valve that is seated in the seating space of the actuator body and controls inflow of atmospheric pressure or vacuum pressure by flow of magnetic force of the electromagnet; A cap coupled to the actuator body so as to cover the valve, the vacuum port having the vacuum pressure introduced thereinto; And a vacuum port provided in an inner space of the actuator body to push the rod when the atmospheric pressure acts on the inside of the actuator body and to open the vacuum port. When the vacuum pressure acts on the inside of the actuator body, And an actuating part for actuating the valve.
According to the present invention, since the separately constructed valve is mounted inside the actuator to integrate the valve and the actuator, the volume can be minimized, and the efficiency of the magnetic field can be increased by the closed circuit structure of the valve, And the coil of the electromagnet is formed by molding the coil of the electromagnet in the actuator body during the injection molding of the actuator body so as to prevent the coil of the electromagnet constituting the valve from being exposed to moisture, .

Description

[0001] The present invention relates to an Actuator Having Valve,

The present invention relates to a valve built-in actuator, and more particularly, a valve which is separately constructed is integrated in an actuator and is integrated with an actuator, thereby minimizing the volume and improving the performance of an actuator operated by a vacuum pressure To a valve built-in actuator.

Generally, an actuator refers to a converter that receives energy such as electricity, hydraulic pressure, and air pressure and outputs it as mechanical power. It has the ability to change the quality of output, that is, the state of speed and force, depending on the amount of energy. Depending on the type of energy input, the mechanical state to be output, the structural characteristics and advantages, and the attachment mechanism such as the reduction gear mechanism and the brake mechanism, there are various types.

Here, the actuator using air pressure is applied to various fields. For example, it may be applied to a variable intake system of a vehicle.

The variable intake system is a device that changes the length and cross-sectional area of the intake pipe according to the number of revolutions of the engine to favorable dimensions at low speed and high speed respectively. In order to increase the intake air flow rate of the intake pipe at low speed, At high speeds, it is a system that contributes to the improvement of the engine's power performance by increasing the diameter of the intake tube and the length of the intake tube to reduce the intake resistance.

The variable intake system adjusts the length of the intake pipe by opening and closing a variable intake valve installed in the intake pipe. The variable intake valve is opened and closed by an actuator by a control signal applied according to the number of revolutions of the engine.

Here, the actuator is operated by the vacuum negative pressure generated in the intake manifold, and the vacuum negative pressure is applied through the solenoid valve provided between the intake manifold and the actuator. That is, the solenoid valve is connected to a vacuum tank in which vacuum negative pressure generated in the intake manifold is stored, and is a member for applying or interrupting the vacuum negative pressure to the actuator by a control signal of the vehicle.

However, in the conventional solenoid valve integrated type product, since the exhaust port is connected to the intake manifold and the intake port is formed as a separate body from the actuator to be connected to the actuator, it is coupled to the upper surface of the actuator, so that the volume of the variable intake apparatus becomes large.

In addition, since the conventional solenoid valve has a structure that is operated in a direction perpendicular to the operating direction of the actuator to apply the vacuum negative pressure generated in the intake manifold to the actuator and integrated into the outside of the actuator, And a separate sealing structure is required, so that the structure of the solenoid valve is complicated, and the power performance is deteriorated.

Korea Registered Patent: 10 - 1480625 (Notification Date 2015.01.09) Korea Registered Patent: 10 - 0514837 (Published on September 29, 2005)

SUMMARY OF THE INVENTION The present invention has been made to solve the conventional problems,

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vacuum pump in which a vacuum port and an atmospheric port are alternately opened and closed by an electromagnetic force in an actuator body including a vacuum port through which vacuum pressure is introduced and an atmospheric pressure port through which an atmospheric pressure is introduced, And an actuator incorporating the valve that minimizes the volume by integrating the actuator and the valve by improving the performance of the actuator operated by the vacuum pressure.

Another object of the present invention is to provide a vacuum pump that can increase the efficiency of a magnetic field with a closed circuit structure of a valve and secure a magnetic force of the same level as that of a conventional product with a small amount of coil and a plunger of the valve flows in the same direction as the actuator, And to provide an actuator with a built-in valve in which an opening and closing operation of a valve can be accurately performed by opening and closing the standby port in an alternate state.

It is still another object of the present invention to provide a valve built-in actuator that prevents the occurrence of electrical shorts by inmolding a coil of an electromagnet into an actuator body during injection molding of an actuator body so that the coil of the electromagnet constituting the valve is not exposed to moisture I have to.

In order to achieve the above object, a valve built-in actuator according to an embodiment of the present invention includes a seating part provided with a seating space recessed from an upper surface toward an inner space, and a seating space communicating with the inner space, An actuator body having an atmospheric port for introducing an external atmospheric pressure into the internal space; A valve that is seated in the seating space of the actuator body and controls inflow of atmospheric pressure or vacuum pressure by flow of magnetic force of the electromagnet; A cap coupled to the actuator body so as to cover the valve, the vacuum port having the vacuum pressure introduced thereinto; And a vacuum port provided in an inner space of the actuator body to push the rod when the atmospheric pressure acts on the inside of the actuator body and to open the vacuum port. When the vacuum pressure acts on the inside of the actuator body, And an operation unit for performing the operation.

The valve is characterized in that when the actuator body is injection-molded, the coil of the electromagnet is molded in an in-sidewall of the seat portion, and is formed integrally with the actuator body.

The valve includes a bobbin having an outer end portion molded in a sidewall of the seat portion so as to prevent the coil wound on the outer side from being exposed to moisture. The bobbin accommodates and supports the bobbin and is molded in the side wall of the seat portion to protect the coil, A core inserted into the bobbin to penetrate the center of the bobbin to form an atmospheric flow path and assist in inducing a magnetic field; a valve spring seated on an upper surface of the bobbin to apply an elastic force to the bobbin; A plunger which is supported by a spring and constitutes a closed circuit inside the core and flows by a magnetic force; and a plunger seal which is connected to the center of the plunger and opens and closes the flow path of the vacuum port and the flow path of the atmospheric port. ).

In addition, a filter is mounted in the receiving portion, and atmospheric pressure flowing into the atmospheric port of the actuator body is transmitted through the filter to the core through the filter, And a cover for forming a moving path of atmospheric pressure to be introduced into the atmospheric flow path of the atmospheric pressure.

The plunger and the plunger chamber are located between the vacuum port and the atmospheric flow path of the core so that the vacuum port and the plunger chamber are located between the vacuum port and the core, And selectively opening and closing the atmospheric flow path of the core.

In addition, a gap regulating unit may be provided on the bottom surface of the cap to limit a flow range of the plunger. The gap regulating unit may include a gap protrusion protruding from a bottom surface of the cap, And the gap projection is in contact with the core through the hole of the plunger to limit the flow range of the plunger.

The upper end of the seat portion is provided with an extension rib projecting from the inner side wall to form a seating space for the valve spring and to support the upper end outer surface of the core inserted into the bobbin and to support the bottom surface of the plunger, And the rib is protruded from the upper surface of the core by a predetermined height so as to function as a stopper against the movement of the plunger so that the plunger does not contact the core, thereby supporting the bottom surface of the plunger.

The one end of the housing of the bobbin which is molded in the side wall of the seat portion is exposed to a part of the outside in the vicinity of the rim or side of the bottom of the plunger to provide a magnetic force to the rim of the plunger to support the stable movement of the plunger .

In addition, the bobbin has a connection port to which a terminal of the battery is connected, and the actuator body is provided with a socket portion for covering a terminal of the battery connected to the connection port. The socket portion is formed by injection molding of an actuator body And the connection port is molded in the socket portion so that the terminal of the battery is accommodated in the socket portion.

The actuating part includes a diaphragm for fixing a rod protruding to the outside of the actuator body and a spring for applying an elastic force to the diaphragm, and a seat part for receiving the valve is located inside the spring.

In addition, the outer surface of the actuator body is provided with a mount for stable engagement with the outside, and the mount includes a clip structure or a fastening structure.

According to an embodiment of the present invention, a vacuum port and an atmospheric port are alternately opened and closed by an electromagnetic force inside an actuator body including a vacuum port through which a vacuum pressure is introduced and an atmospheric pressure port through which an atmospheric pressure is introduced, The performance of the actuator operated by the vacuum pressure is improved.

In addition, since the separately configured valve is mounted inside the actuator, the valve and actuator can be integrated to minimize the volume, and the closed circuit structure of the valve increases the efficiency of the magnetic field and secures the same level of magnetic force And the plunger of the valve flows in the same direction as the actuating direction of the actuator, thereby opening and closing the vacuum port and the standby port in an alternate state, thereby opening and closing the valve accurately.

In addition, in order to prevent the coil of the electromagnet constituting the valve from being exposed to moisture, the coil of the electromagnet is molded in the actuator body during the injection molding of the actuator body to prevent electrical shorting of the valve due to moisture.

Further, by providing gap protrusions for limiting the flow range of the plunger, it is easy to control the flow of the plunger according to the operation, and there is no deformation of the dimension, so that the flow amount of the plunger can be kept constant for each product.

Further, a filter is mounted on the bottom surface of the atmospheric flow path of the core, and a cover for forming a moving path of atmospheric pressure is coupled to the outside of the filter, thereby simplifying the structure of the flow path through which the atmospheric pressure flows. Further, There is no need for fixing means, and there is an effect of minimizing the total volume of the actuator by having a structure in which the filter is housed in the cover.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an outer shape of a valve built-in actuator according to an embodiment of the present invention; FIG.
FIG. 2 is a perspective view explaining an actuator incorporating a valve according to an embodiment of the present invention. FIG.
3 is a cross-sectional view illustrating an internal structure of a valve in a valve built-in actuator according to an embodiment of the present invention.
FIG. 4 is an enlarged cross-sectional view illustrating a state in which a valve is coupled to an actuator body in a valve built-in actuator according to an embodiment of the present invention. FIG.
FIG. 5 and FIG. 6 are views illustrating a state in which a valve-mounted actuator according to an embodiment of the present invention is operated.
FIG. 7 is a perspective view showing another embodiment of a mount in a valve built-in actuator according to an embodiment of the present invention; FIG.

These and other objects, features and other advantages of the present invention will become more apparent by describing in detail preferred embodiments of the present invention with reference to the accompanying drawings. Hereinafter, a valve built-in actuator according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. For purposes of this specification, like reference numerals in the drawings denote like elements unless otherwise indicated.

1 and 2, a valve-incorporated actuator according to an embodiment of the present invention will be described with reference to FIGS. 3 and 4. FIG. Referring to FIGS. 5 and 6, the operational state of the valve built-in actuator according to an embodiment of the present invention will be described.

1 to 3, a valve-mounted actuator according to an embodiment of the present invention includes a seating portion provided with a seating space recessed from an upper surface toward an inner space, and a seating space communicating with the inner space, An actuator body 100 having an atmospheric port for introducing an external atmospheric pressure into the internal space; A valve (200) placed in the seating space of the actuator body and controlling inflow of atmospheric pressure or vacuum pressure by flow of magnetic force of the electromagnet; A cap (300) coupled to the actuator body so as to cover the valve, the vacuum port having a vacuum air inlet; And a vacuum port provided in an inner space of the actuator body to push the rod when the atmospheric pressure acts on the inside of the actuator body and to open the vacuum port. When the vacuum pressure acts on the inside of the actuator body, And an operation unit (400) for performing the operation.

The actuator body 100 includes an upper body 110 and a lower body 120. The upper body 110 and the lower body 120 are coupled to each other to form an internal space 130. [

The upper body 110 is provided with a seating space 111 which is recessed from the upper surface toward the inner space 130. A hole 112 is formed in the bottom surface of the seating space 111 to define an inner space 130 of the actuator body, And a seating part 113 provided to allow the seating space 111 to communicate with each other. At one side of the seating part 113, a standby port 115 for introducing an external atmospheric pressure into the internal space 130 of the actuator body is provided.

The lower body 120 coupled to the upper body 110 is provided with a space for receiving the actuating part 400 and has a through hole 121 for projecting the rod of the actuating part 400 outward, .

Here, the upper body 110 and the lower body 120 are injection molded, and the seat portion 113 and the air port 115 are integrally formed during the injection molding of the upper body.

A valve 200 for controlling inflow of atmospheric pressure or vacuum pressure is seated on the seat 113 of the upper body 110 by a magnetic force of the electromagnet.

The valve 200 is integrally formed with the upper body 110 by in-molding the coil of the electromagnet in the side wall of the seating part 113 forming the seating space in the injection molding of the upper body 110. That is, the coil of the electromagnet constituting the valve 200 is not exposed to moisture, thereby preventing the electric short of the valve.

As shown in Fig. 4, the valve 200 includes a bobbin 210 having an outer end molded in the side wall of the seat portion so as to prevent the wound coil from being exposed to moisture, a bobbin 210 for receiving and supporting the bobbin, A bobbin housing 220 inserted in the bobbin 210 to penetrate the center of the bobbin housing 220 to form an atmospheric flow path 231 and to induce a magnetic field A valve spring 240 elastically supported on the upper surface of the bobbin 210 to apply an elastic force to the bobbin 210 and a plunger And a plunger seal 260 coupled to a center of the plunger 250 to open and close the flow path of the vacuum port and the flow path of the atmospheric port.

An upper end of the seating part 113 protrudes from the inner wall to form a seating space for the valve spring 240. An extension rib (not shown) for supporting the outer upper end of the core inserted in the bobbin 210 and the lower end of the plunger (114). At this time, the extension ribs 114 are formed integrally in the injection molding of the upper body, so that the plunger 250 does not come into contact with the core and protrudes a predetermined height from the upper surface of the core so as to function as a stopper against the movement of the plunger 250 So as to support the bottom surface of the plunger 250.

One end of the bobbin housing 220 molded on the side wall of the seating part 113 is provided with a magnetic force on the bottom edge of the plunger 250 so as to support the stable movement of the plunger 250, And is adjacent to the rim or the side surface of the bobbin housing 220.

In addition, a connection port 270 to which a terminal 271 of the battery is connected is provided at one side of the bobbin 210, and a connection terminal 270 for covering the terminal 271 of the battery connected to the connection port 270 is provided in the upper body 110 A socket portion 116 is provided.

The socket portion 116 is integrally molded in the injection molding of the upper body 110 and the connection port 270 is formed in the socket portion 116 so that the terminal 271 of the battery is received in the socket portion 116. [ do.

When the connection port 270 to which the terminal 271 of the battery is connected is formed in the socket portion 116 and integrally molded, the connection port may not be separately assembled or welded, so that convenience of operation and ease of use can be improved .

A cap 300 for covering and protecting the valve 200 seated in the seating space 111 is coupled to the upper surface of the upper body 110. At this time, the cap 300 is provided with a vacuum port 310 through which the vacuum pressure is introduced, and the vacuum port 310 is disposed in line with the atmospheric flow passage 231 formed in the core. A plunger 250 and a plunger chamber 260 are disposed between the vacuum port 310 and the air flow path 231 of the core. The plunger 250 and the plunger chamber 260 are connected to each other by a magnetic force of the electromagnet, And selectively opens and closes the port 310 and the air flow path 231 of the core.

In addition, a gap regulating unit 320 is provided on the bottom surface of the cap 300 to limit the flow range of the plunger.

The gap regulating unit 320 may include a gap protrusion 321 protruding from the bottom surface of the cap 300 and a hole 251 formed in the plunger 250 of the valve and into which the gap protrusion is inserted. That is, the gap protrusion 321 of the gap regulating portion contacts the core through the hole 251 of the plunger to form a gap of a predetermined distance, and the plunger 250 has a flow range corresponding to the projection height of the gap protrusion 321.

By limiting the flow range of the plunger 250 by using the gap regulating unit 320, it is easy to control the flow according to the operation of the plunger 250 and the flow amount of the plunger 250 is constant .

A vent hole 330 communicating with the atmospheric port may be formed on the side surface of the cap 300 so that an atmospheric pressure outside the vent port 115 may be introduced into the vent port 115 formed in the upper body 110.

In addition, a groove 261 is formed at the center of one side of the plunger chamber 260, into which the assembling mechanism is inserted. Here, when the size of the plunger chamber 260 is small, it is not easy to assemble the plunger 250. A groove 261 is formed in the center of one surface of the plunger chamber 260 so as to allow insertion of a mechanism for assembling such as a tweezers and the center of the plunger 250 When the plunger chamber 260 is pushed into the hole, the end portion of the plunger center hole is easily engaged with the engaging groove formed in the outer circumferential surface of the plunger chamber 260, so that the plunger chamber 260 can be easily assembled.

The accommodating portion 117 is provided at the outer side of the hole 112 formed in correspondence with the atmospheric flow passage 231 of the core and the filter 118 is attached to the accommodating portion 117 And a cover 119 for forming an atmospheric pressure transfer passage for introducing atmospheric pressure to the atmospheric port 115 of the actuator body through the filter 118 into the atmospheric flow passage 231 of the core is provided outside the filter 118 .

The atmospheric pressure introduced into the standby port 115 passes through the filter 118 along the passage formed by the cover 119 and flows into the air passage 231 of the core. At this time, the filter 118 filters the foreign substances contained in the atmosphere.

By forming a moving path of the atmospheric pressure by the cover 119, the structure of the flow path through which the atmospheric pressure flows is simplified, and the filter 118 accommodated in the accommodating portion 117 formed on the outer side of the flow path is fixed, 118, and the structure of the filter 119 to accommodate the filter 118 minimizes the overall volume of the actuator.

Meanwhile, the actuating part 400 is located inside the actuator body 100.

The actuating part 400 includes a diaphragm 410 seated in an internal space of the lower body, and a spring 420 and a rod 430.

A rod 430 coupled to the through hole 121 formed in the bottom surface of the lower body 120 is coupled to the lower end of the diaphragm 410 and a plate 431 integrally extended from the rod 430 to fix the spring, Is provided inside the diaphragm (410).

The lower end of the spring 420 is fixed to the plate 431 and the upper end of the spring 420 is fixed to the inner upper end of the upper body 110 via the outer side of the seat 113 to seat the diaphragm 410. At this time, since the valve 113 housed in the seating part is positioned inside the spring 420 provided in the actuator body, the total volume of the actuator is minimized.

Then, the elastic force of the spring 420 acts in a direction to push out the rod 430. That is, when the spring 420 is compressed, the diaphragm 410 and the rod 430 are pulled, and when the restoring force is applied to the compressed spring 420, the diaphragm 410 and the rod 430 are pushed back to the original position.

Here, the pressure of the spring 420 is larger than the atmospheric pressure and smaller than the vacuum pressure. Accordingly, when atmospheric pressure is applied to the inside of the actuator body 100, the spring 420 pushes the rod 430. When the vacuum pressure acts on the actuator body 100, the spring 420 is compressed and the rod 430 ).

Meanwhile, as shown in FIGS. 1 and 7, the actuator body 100 may further include a mount 500 for stable engagement with the outside. Here, the mount 500 may have a clip structure as shown in FIG. 1, or may have a fastening structure as shown in FIG.

As shown in FIG. 1, the clip structure of the mount 500 includes, for example, a guide rail 510 which is slidably coupled and a hook groove 520 for hooking a hook on one side of the guide rail As shown in FIG.

As shown in FIG. 7, the fastening structure of the mount 500 may include a bolt hole 530 which can be assembled by using an external screw.

In other words, it is possible to assemble an external joining member by inserting it by putting it on the clip structure mount or by hanging it, or by screwing the screw into the bolt hole of the mount, so that no separate assembling parts are required and stable assembly is possible even if vibration is applied .

The operation of the valve built-in actuator constructed as described above will be described below.

5, the valve built-in actuator is basically constructed such that the plunger 250 of the valve 200 blocks the flow path of the vacuum port 310 by the elastic force of the valve spring 240, And atmospheric pressure acts on the inside of the actuator body 100. [ At this time, since the spring 420 of the actuating part has a pressure higher than the atmospheric pressure, the elastic force acts in a direction to push out the rod 430, and the rod 430 is maximally protruded to the outside of the actuator body 100.

5, the plunger 250 flows due to the electromagnetic force of the valve 200 to shut off the flow path of the atmospheric port 115 and open the flow path of the vacuum port 310 to open the flow path of the actuator body 100, The vacuum pressure is applied to the inside of the chamber. At this time, the valve spring 240 supporting the plunger 250 is in a compressed state. In addition, the spring 420 of the actuating part provided inside the actuator body is in a state of FIG. 6 which pulls the rod 430 in the protruded state inside the actuator body 100 while being compressed because the pressure is smaller than the vacuum pressure.

6, when the electromagnetic force of the valve 200 is lost and the valve spring 240 in the compressed state is restored, the plunger 250 is pushed out, and the plunger 240 moves in the gap Thereby shutting off the flow path of the vacuum port 310 and opening the flow path of the standby port 115 so that the atmospheric pressure acts on the inside of the actuator body 100. At this time, the rod 430 is pushed by the restoring force of the spring 420 and is in the state of FIG. 5 protruding to the outside of the actuator body 100.

As described above, according to the present invention, the vacuum port and the atmospheric port are alternately opened and closed by the electromagnetic force inside the actuator body including the vacuum port through which the vacuum pressure is introduced and the atmospheric pressure port through which the atmospheric pressure flows, The performance of the actuator operated by the vacuum pressure is improved.

In addition, since the separately configured valve is mounted inside the actuator, the valve and actuator can be integrated to minimize the volume, and the closed circuit structure of the valve increases the efficiency of the magnetic field and secures the same level of magnetic force And the plunger of the valve flows in the same direction as the actuating direction of the actuator so that the opening and closing operations of the valve can be accurately performed by alternately opening and closing the vacuum port and the standby port.

Further, in order to prevent the coil of the electromagnet constituting the valve from being exposed to moisture, the coil of the electromagnet is molded in the actuator body during the injection molding of the actuator body to prevent electrical shorting of the valve due to moisture.

Further, by providing the gap protrusion for limiting the flow range of the plunger, it is possible to easily control the flow of the plunger according to the operation, and there is no deformation of the dimension, so that the flow amount of the plunger can be kept constant for each product.

Further, a filter is mounted on the bottom surface of the atmospheric flow path of the core, and a cover for forming a moving path of atmospheric pressure is coupled to the outside of the filter, thereby simplifying the structure of the flow path through which the atmospheric pressure flows. Further, No fixing means is required, and the filter has a structure for receiving the cover, thereby minimizing the total volume of the actuator.

Although the preferred embodiments of the present invention have been described, the present invention is not limited to the specific embodiments described above. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the appended claims, And equivalents may be resorted to as falling within the scope of the invention.

100: actuator body 110: upper body
111: seating space 112: hole
113: seat part 114: extension rib
115: standby port 116: socket portion
117: receiving portion 118: filter
119: cover 120: lower body
121: Through hole 130: Internal space
200: valve 210: bobbin
220: bobbin housing 230: core
231: atmospheric flow path 240: valve spring
250: plunger 251: hole
260: plunger chamber 261: groove
270: connection port 271: terminal of the battery
300: cap 310: vacuum port
320: gap adjusting portion 321: gap projection
330: vent hole 400: operating part
410: diaphragm 420: spring
430: rod 431: plate
500: Mount 510: Guide rail
520: hook groove 530: bolt hole

Claims (13)

An actuator body having a seating portion provided with a seating space recessed from an upper surface toward the inner space and provided with a seating space communicating with the inner space, and an atmospheric port for introducing an atmospheric pressure of the outside into the inner space at one side of the upper surface; A valve that is seated in the seating space of the actuator body and controls inflow of atmospheric pressure or vacuum pressure by flow of magnetic force of the electromagnet; A cap coupled to the actuator body so as to cover the valve, the vacuum port having the vacuum pressure introduced thereinto; And a vacuum port provided in an inner space of the actuator body to push the rod when the atmospheric pressure acts on the inside of the actuator body and to open the vacuum port. When the vacuum pressure acts on the inside of the actuator body, And a control unit
The valve includes a bobbin having an outer end molded in the side wall of the seat so as to prevent the coil wound on the outer side from being exposed to moisture, a bobbin for receiving and supporting the bobbin, molded in the side wall of the seat to protect the coil, A core inserted into the bobbin and penetrating the center of the bobbin to form an atmospheric flow path therein and helping to induce a magnetic field; a valve spring seated on an upper surface of the bobbin to apply an elastic force to the bobbin; A plunger which is supported elastically to constitute a closed circuit in the core and flows by magnetic force and a plunger seal which is connected to the center of the plunger and opens and closes the flow path of the vacuum port and the flow path of the atmospheric port, And is characterized in that,
Wherein the plunger and the plunger chamber are located between the vacuum port and the atmospheric flow path of the core so that the flow of the fluid through the vacuum port and the core, Characterized in that the atmospheric flow passage is selectively opened and closed,
Wherein a gap regulating unit is provided on a bottom surface of the cap to limit the flow range of the plunger. delete delete The method according to claim 1,
A filter is mounted on the receiving portion, and atmospheric pressure flowing into a standby port of the actuator body is transmitted to the atmospheric pressure port of the core through the filter, And a cover which forms a moving path of atmospheric pressure to be introduced into the flow path is coupled. delete delete The method according to claim 1,
Wherein the gap regulating portion comprises a gap projection protruding from a bottom surface of the cap and a hole formed in the plunger of the valve to insert the gap projection, the gap projection being in contact with the core through the hole of the plunger, Wherein the range of the valve is limited. The method according to claim 1,
And an extension rib protruding from an inner side wall of the seating portion to form a seating space for the valve spring and to support an outer surface of an upper end portion of the core inserted into the bobbin and to support a bottom surface of the plunger, Wherein the plunger protrudes from the upper surface of the core by a predetermined height so as to function as a stopper against movement of the plunger so that the plunger does not contact the core, thereby supporting the bottom surface of the plunger. The method according to claim 1,
And one end of the housing of the bobbin which is molded on the side wall of the seating part is exposed to a part of the outside in the vicinity of the bottom or side edge of the plunger so as to support the plunger stably by providing a magnetic force to the rim of the plunger. Valve built-in actuator. The method according to claim 1,
Wherein a connection port to which a terminal of the battery is connected is provided at one side of the bobbin, and a socket for covering a terminal of the battery connected to the connection port is provided in the actuator body. 11. The method of claim 10,
Wherein the socket portion is molded integrally with the actuator body during injection molding of the actuator body, and the connection port is formed by injection molding in the socket portion so that the terminal of the battery is received in the socket portion. The method according to claim 1,
Wherein the actuating part includes a diaphragm for fixing a rod protruding to the outside of the actuator body and a spring coupled to the inside of the diaphragm to apply an elastic force, and a seat part for receiving the valve is positioned inside the spring Valve built-in actuator. The method according to claim 1,
Wherein an outer surface of the actuator body is provided with a mount for stable engagement with the outside, and the mount includes a clip structure or a fastening structure.

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