KR101407599B1 - Linear solenoid valve - Google Patents

Abstract

Disclosed in the present invention is a linear solenoid valve. According to the present invention, a bobbin has a coil wound on one side, and the coil wound on the bobbin is elongated to be wound on a predetermined position of a plate spring inserted between the bobbin and a central shaft member. An electric current, flowing through the plate spring by a power supplied to one side of the plate spring, is supplied to the elongated coil and the coil wound on the bobbin, thus one side of the coil is connected to the power plug installed inside a body, and a wire harness or a brush of an existing solenoid valve, where the power plug exposed to the outside and one side of the coil are connected, is removed. Since one side of the coil of the wire harness is removed of damaged portion caused by frequent moving, the durability of the product can be enhanced.

Description

Linear solenoid valve {LINEAR SOLENOID VALVE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear solenoid valve, and more particularly, to a linear solenoid valve capable of removing damage to a current-supplying terminal exposed to the outside by providing a current to a coil through a leaf spring of a magnetic body.

Generally, an electromagnet is configured to move a movable core by an electromagnetic force (magnetic force) generated by applying a current to a coil wound, and is used in various fields. Hereinafter, a case where the electromagnet is applied to a linear solenoid will be described as an example .

FIG. 1 is a cross-sectional view of a conventional linear solenoid. The linear solenoid includes a hollow body 10 having open ends at both ends thereof, and a coil spring 21 installed at both inner sides of the body 10, A yoke 30 coupled to both ends of the body 10 to constitute a magnetic circuit together with the body 10 and a yoke 30 connected to the inside of the pair of coil bobbins 20, A movable iron core 40 reciprocating by an electromagnetic force acting on the coil bobbin 20 and inserted through the center of the movable iron core 40 and both ends of the yoke 30 are slidably inserted into the yoke 30, And a shaft (50) supported to support a reciprocating motion of the movable iron core (40).

A plurality of pins 60 are vertically installed around both ends of the body 10 to fix the body 10 and the yoke 30 so that the yokes 30 coupled to both ends of the body 10 can be fixed. Lt; / RTI >

A power terminal 70 is provided on the outer surface of the body 10 to supply power to the pair of coils 21 independently. In addition, the power terminal 70 prevents electric shock or fire, A ground terminal 75 connected to the body 10 is also installed to block electrical noise that may be generated.

A bushing 80, which is a non-magnetic material, is coupled to the center of the yoke 30 to slideably support the shaft 50.

On the other hand, a counterpart 5 (for example, a link or the like) to be reciprocated is coupled to one end or both ends of the shaft 50.

Therefore, when power is supplied to the one coil 21 of the pair of coils 21, the movable core 40 is moved toward the coil 21 by the electromagnetic force generated in the coil 21 The movable iron core 40 is moved to the side of the other coil 21 by the electromagnetic force generated in the other coil 21 when power is supplied to the other coil 21 after the power supply to the one side coil 21 is cut off .

The movable iron core 40 reciprocates while moving toward the coil bobbin 20 to which power is supplied in the pair of coil bobbins 20. At this time, the movable iron core 40 is coupled to one end or both ends of the shaft 50, Thereby moving the mating object 5.

However, a brush that forms a current flow from the power terminal 70 to one side of the coil 21 and the power terminal 70 through the coil 21 to the ground terminal 75 is exposed to the outside, The coil bobbin 20 and the central shaft member 40 reciprocate while simultaneously moving the coil bobbin 20 and the brush so that the coil 21 is wound by the frequent movement of the bobbin 20, And the durability of the product is deteriorated.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a bobbin in which a coil is wound on a predetermined position of a plate spring fixed on an upper surface of a bobbin on which a coil is wound, A current is supplied to the coil of the bobbin through the leaf spring so that one end of the coil connected to the power supply terminal is installed inside the body and the existing solenoid valve The linear solenoid valve of the present invention is capable of fundamentally improving the durability of the product because the wire harness or brush of the wire harness or brush is removed and damage of one side of the coil of the wire harness caused by frequent movement of the harness or brush is eliminated.

According to an aspect of the present invention, there is provided a linear solenoid valve,

A body in which a coil bobbin having a coil wound therein, a permanent magnet generating an electromagnetic force according to an electric current flowing through the coil, and a magnet bracket fixing the permanent magnet are sequentially inserted into the coil bobbin,

A center shaft member reciprocally moving together with the bobbin by an electromagnetic force acting on the permanent magnet, the coaxial member being inserted and fixed in the bobbin and being integrally formed with the bobbin and protruding from an upper surface of the bobbin, ,

A bobbin coil wound around the bobbin is inserted and fixed between the central shaft member and the bobbin, a coil is wound around the bobbin, and a current flowing by a power source supplied from the outside is supplied to the coil. By the electromagnetic force of the permanent magnet A plate spring that moves with the bobbin and the center shaft member and returns to the original position when the power is turned off,

A damper member which is formed by bending a cushioning material so as to surround the outer circumference of the bobbin and has a bobbin and a central shaft member installed therein and absorbs an impact when the bobbin and the central shaft member are moved,

Wherein the damper member is inserted into the damper member and is integrally formed with the body and is bent so as to surround the outer circumference of the plate spring and exhausts internal air to the outside in accordance with movement of the bobbin and the center shaft member, And a housing member having a passage.

Preferably, the leaf spring

And a magnetic body for supplying a current generated by a power source supplied from the outside to a coil wound on the bobbin and supplied to a coil wound on the bobbin.

Preferably,

A pair of fixing members formed by bending the center shaft member to be inserted therein and having a plurality of fixing grooves for fixing the bobbin to a predetermined position,

A pair of current supply members extending from one side of each of the fixing members and extending to a coil wound on the bobbin and wound with a coil,

And a pair of insertion holes formed at one side of the support and extending from the other side of each of the fixing members and having a plurality of insertion holes into which a power supply member for receiving power supplied from the outside and transmitting the coil to the coil is inserted, And a support member.

 Preferably,

And the plate spring is fixed between the upper surface of the bobbin and the central shaft member by a combination of a screw and a bolt.

As described above, in the linear solenoid valve according to the present invention, the coil wound on the bobbin is extended and wound at a predetermined position of the leaf spring provided on the upper side of the bobbin on which the coil is wound, A current flowing through the plate spring is supplied to the extended coil according to the provided power source so that one end of the coil connected to the power source terminal is installed inside the body and the existing solenoid valve The wire harness or the brush of the wire harness or the brush is removed and the damage of one side of the coil of the wire harness caused by frequent movement is removed, which has an advantage that the durability of the product can be fundamentally improved.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description of the invention given below, serve to further understand the technical idea of the invention. And should not be construed as limiting.
1 is a diagram showing a configuration of a general linear solenoid valve.
2 is an exploded perspective view showing a configuration of a linear solenoid valve according to an embodiment of the present invention.
3 is a sectional view showing the configuration of the leaf spring shown in Fig.
FIG. 4 is a sectional view showing the operating state of the linear solenoid valve shown in FIG. 2. FIG.
5 is a sectional view showing the operating state of the linear solenoid valve shown in FIG.

For a better understanding of the present invention and its operational advantages and the objects attained by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

FIG. 2 is an exploded perspective view showing the configuration of a linear solenoid valve according to an embodiment of the present invention, FIG. 3 is a cross-sectional view showing a more detailed configuration of the leaf spring shown in FIG. 2, FIG. 5 is a cross-sectional view showing the operating state of the linear solenoid valve shown in FIG. 2. FIG. 5 is a sectional view showing the operating state of the linear solenoid valve shown in FIG.

A linear solenoid valve according to an embodiment of the present invention is characterized in that a coil wound on a bobbin is extended at a predetermined position of a leaf spring provided on an upper surface of a bobbin on which a coil is wound, A current flowing through the leaf spring is supplied to the elongated coil in accordance with a control signal from the control unit 40. This apparatus includes a body 10, a permanent magnetic flux 30 of a magnetic flux bracket 20, a leaf spring 50 of a bobbin 40, (60) and a housing (70).

Although the linear solenoid valve is cylindrical in the embodiment of the present invention, it is obvious that the linear solenoid valve can be modified by the manufacturer.

The body 10 is inserted into a magnet bracket 20 for fixing a permanent magnet 30 therein. The magnetic flux bracket 20 is fixed at a predetermined position inside the body 10 and the permanent magnet 30 is inserted and fixed in the magnet bracket 20.

Then, a bobbin 40 wound on a coil 41 is inserted into the permanent magnet 30, and the bobbin 40 is wound on a coil on the outer circumferential surface.

The coil 41 is inserted and fixed to the inside of the bobbin 50 wound on the bobbin 50 and protruded from the upper surface of the bobbin 50. The electromagnetic force generated by the permanent magnet 30 causes the bobbin 40, And a central shaft member 43 which reciprocally moves upward and downward together. The bobbin 40 and the central shaft member 43 are integrally formed and the central shaft member 43 prevents the bobbin 40 from swinging when the bobbin 40 moves up and down.

The bobbin 40 is fixed to the plate spring 50 between the upper surface of the bobbin 40 and the central shaft member 43.

3, the leaf spring 50 is provided as a magnetic body for supplying a current by a power source supplied from an external power supply member (not shown) to the coil 41, A pair of fixing members 51 having a plurality of grooves 51a bent to be inserted into the central shaft member 43 and fixed at a predetermined position of the bobbin 40, A pair of current supply members 53 extended to the bobbin 40 and extended to the coil 41 and wound around the bobbin 40 a predetermined number of times, 55a formed on one side of the support base 55a and an insertion hole 55b formed on one side of the support base 55a for fixing the leaf spring 50 to the body 10 and a power supply member In order to supply the power supplied from the outside through the coil 41 to the coil 41, And a pair of support members 55 having a plurality of insertion holes 55c for inserting the ash and delivering the current provided by the power supply to the coil 41 of the current supply member.

4, the coil 41 is supported by a supporting member 55a formed of a magnetic material in accordance with the power supplied to the insertion hole 55c of the pair of supporting members 55 of the leaf spring 50, And a current flowing in the coil 41 is provided to a coil wound around the bobbin 40. An electromagnetic force is generated in the permanent magnet 30 in accordance with the flow of the current. The bobbin 40 and the central shaft member 43 are moved by the electromagnetic force and the leaf spring 50 is twisted and moved. The movement length is determined by the elastic force of the leaf spring.

The shape of the leaf spring 50 in the embodiment of the present invention may be modified by the manufacturer depending on the shape of the solenoid valve, which will be apparent to those skilled in the art.

The bobbin 40 and the central shaft member 43 are installed inside the bobbin 40 and the central shaft member 43 so as to surround the outer circumference of the bobbin 40, A damper member (60) for absorbing an impact when moving is installed on the bobbin (40) and the central shaft member (43).

That is, the bobbin 40, the central shaft member 43 and the leaf spring 50 move according to the electromagnetic force generated in the permanent magnet 30, and at this time, the damper member 60 moves to the center shaft member 43 ) And the housing member (70). Therefore, the damper member 60 is usually made of a cushioning material and is made of silicon or the like

The guide member is inserted into the upper surface of the damper member 60 and is integrally formed with the body to be bent to surround the outer circumference of the leaf spring 50. The bobbin 40 and the center shaft member 50, (70) having an exhaust passage (71) for exhausting the internal air to the outside in accordance with the reciprocating motion of the exhaust passage (43) to intermittently flow the air.

The leaf spring 50 inserted between the bobbin 40 and the central shaft member 43 and between the bobbin 40 and the central shaft member 43 moves so that the damper member 60 moves in the direction The air in the housing is discharged to the outside through the exhaust passage 71 and the bobbin 40 and the central shaft member 43 and the bobbin 40 and the central shaft member When the damper member 60 is controlled to open the exhaust passage 71 of the housing member 70, air is introduced into the housing through the exhaust passage 71 ≪ / RTI >

The shapes of the damper member 60 and the housing member 70 are not limited to the embodiments of the present invention and modifications of the shapes of the damper member 60 and the housing member 70 will be apparent to those skilled in the art.

The process of discharging the air inside the housing to the outside through the exhaust passage 71 will be described in more detail with reference to FIG.

The electric current is supplied to the bobbin 40 through the coil 41 of the leaf spring 50 of the magnetic body when the power supply member is inserted into the insertion hole 55c of the leaf spring 50, Lt; / RTI >

An electromagnetic force is generated in the permanent magnet 30 by the current flowing through the coil 41 of the bobbin 40 and the electromagnetic force is applied to the bobbin 40 and the center shaft member 43 And the leaf spring 50 inserted between the bobbin 40 and the central shaft member 43 are moved.

At this time, the damper member 60 surrounding the moving bobbin 40 blocks the exhaust passage 71 of the housing member 70, and the air inside the housing is discharged to the outside.

The process of introducing the outside air into the housing member 70 through the exhaust passage 71 of the housing member 70 will be described in more detail with reference to FIG.

When a power supply member (not shown) is inserted into the insertion hole 55c of the leaf spring 50 and the power supplied to the leaf spring 50 is cut off, the current flows through the coil 41 of the leaf spring 50 of the magnetic body To the coils of the bobbin 40. [0050]

Since the electromagnetic force is not formed in the permanent magnet 30 due to the current flowing through the coil 41 of the bobbin 40, the bobbin 40 and the central shaft member 43 formed integrally with the bobbin 40 The leaf spring 50 inserted between the bobbin 40 and the central shaft member 43 is returned to the original position.

At this time, the damper member 60 surrounding the moving bobbin 40 is controlled to open the exhaust passage 71 of the housing member 70, so that the outside air flows into the inside of the housing.

According to the embodiment of the present invention, a coil wound on a bobbin at a predetermined position of a leaf spring inserted between a bobbin on which a coil is wound on one side and a center shaft member is wound and extended according to a power source provided on one side of the leaf spring The current flowing through the leaf spring is supplied to the coil extended to the coil and the bobbin.

Therefore, the coil of the wire harness, which is formed by removing the wire harness or the brush of the existing solenoid valve connected to one end of the coil and the power terminal exposed to the outside, The durability of the product is further improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

The coil wound on the bobbin is extended and wound at a predetermined position of the bobbin inserted between the bobbin on which the coil is wound on one side and the center shaft member and the electric current flowing through the leaf spring is extended The wire harness or brush of a conventional solenoid valve connected to the power terminal exposed to the outside and the coil is connected to the inside of the body so that the wire harness or the brush of the conventional solenoid valve is removed, Since damage to one side of the coil of the wire harness is eliminated, it is possible to improve the accuracy and reliability of operation of the linear solenoid valve which can further improve the durability of the product, and further improve the performance efficiency. The linear solenoid valve of the present invention is not only commercially available, It is an invention that can be used industrially because it can be carried out clearly by the performance.

Claims (4)

A body in which a coil bobbin having a coil wound therein, a permanent magnet generating an electromagnetic force according to an electric current flowing through the coil, and a magnet bracket fixing the permanent magnet are sequentially inserted into the coil bobbin,
A center shaft member reciprocally moving together with the bobbin by an electromagnetic force acting on the permanent magnet, the coaxial member being inserted and fixed in the bobbin and being integrally formed with the bobbin and protruding from an upper surface of the bobbin, ,
A bobbin coil wound around the bobbin is inserted and fixed between the central shaft member and the bobbin, a coil is wound around the bobbin, and a current flowing by a power source supplied from the outside is supplied to the coil. By the electromagnetic force of the permanent magnet A leaf spring which moves with the bobbin and the central shaft member and returns to the original position when the power is turned off,
A damper member which is formed by bending a cushioning material so as to surround an outer circumference of the bobbin and has a bobbin and a central shaft member installed therein to absorb an impact when the bobbin and the central shaft member are moved,
Wherein the damper member is inserted into the damper member and is integrally formed with the body and is bent so as to surround the outer circumference of the plate spring and exhausts internal air to the outside in accordance with movement of the bobbin and the center shaft member, And a housing member having a passage. 2. The apparatus of claim 1, wherein the leaf spring
And a magnetic body for supplying a current generated by an external power supply to a coil wound on the bobbin to supply the coil to a coil wound on the bobbin. [2] The apparatus of claim 1,
A pair of fixing members formed by bending the center shaft member to be inserted therein and having a plurality of fixing grooves for fixing the bobbin to a predetermined position,
A pair of current supply members extending from one side of each of the fixing members and extending to a coil wound on the bobbin and wound with a coil,
A support base formed on the other side of each of the fixing members, a first insertion hole formed on one side of the support base and fixed to the body,
And a support member formed on one side of the support and having a second insertion hole into which a power supply member for receiving a power supplied from the outside and transmitting the coil to the coil is inserted. The apparatus according to claim 3,
And the plate spring is fixed between the upper surface of the bobbin and the central shaft member by a combination of a screw and a bolt.

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