KR200416106Y1 - Coaxial-flowing type solenoid valve assembly - Google Patents

Abstract

The coaxial flow solenoid valve of the present invention includes a solenoid portion having a solenoid operated plunger; A hollow cylindrical valve body installed on one side of the solenoid portion, the valve body being composed of vertically spaced inner and outer cylindrical portions coaxially spaced apart from each other, wherein the inner and outer cylindrical portions are fluid inlets, and the inner cylindrical portion is a fluid outlet; A disc-shaped holder having a central hole opened and closed by the plunger of the solenoid portion, and an outer hole formed in an outer portion thereof; A sealing diaphragm coupled to a lower portion of the holder to seal the upper portion of the inlet and the outlet in normal operation and to communicate the upper portion of the inlet and the outlet in operation with the plunger, and communicate with the central and outer apertures of the holder. do.

Coaxial Flow Solenoid Valve, Plunger, Valve Body, Holder, Diaphragm, Fluid

Description

Coaxial Flow Solenoid Valve {COAXIAL-FLOWING TYPE SOLENOID VALVE ASSEMBLY}

1 is a cross-sectional view of a solenoid valve of a general structure according to the prior art.

2A and 2B are cross-sectional views of non-operation and operation of the solenoid valve according to an embodiment of the present invention.

3 is a cross-sectional view of a solenoid valve according to another embodiment of the present invention.

4A is a cross-sectional view illustrating a straight flow path adapter that can be fastened to the solenoid valve of FIG. 2 or 3.

4B is a cross-sectional view illustrating a T-type flow path adapter that may be fastened to the solenoid valve of FIG. 2 or 3.

4C is a cross-sectional view illustrating an L-type flow path adapter that may be fastened to the solenoid valve of FIG. 2 or 3.

The present invention relates to a solenoid valve, and more particularly, to a coaxial flow solenoid valve for performing inflow and outflow of a fluid on the same axis in a solenoid valve for electronically controlling a fluid flow remotely.

Typically, solenoid valves are electronic valves that are widely used to electronically control the flow of fluid electronically in vehicles, refrigerators, bidets, water purifiers, vending machines, and the like.

The general arrangement according to the prior art of such a solenoid valve is shown in FIG.

According to FIG. 1, the conventional solenoid valve 10 may be installed on a pipe through which fluid flows, and may control whether or not to control the intermittent discharge of the fluid entering the one side side inlet IN through the other side side outlet OUT. It is configured to.

In the schematic configuration, the plunger 14 provided inside the solenoid valve 10 is configured to be lifted by the electric magnetic force, and is elastically supported downward by the spring 18. And the diaphragm 12b is installed in the upper part of the blocked barrier 17 between one side inlet IN and the other side outlet OUT, and interrupts the flow of the fluid inside a pipe through it.

When an electrical signal is applied to the solenoid valve 10 and the plunger 14 rises upward, the central through hole 16 is opened to allow fluid filled in the space A above the diaphragm holder 12a to pass through. The pressure in the space (A) is dropped while falling through (16). That is, the pressure keeping equilibrium opens the central through hole 16 of the diaphragm holder 12a by the upper movement of the plunger 14, so that the fluid moves downward through the central through hole 16. And while the fluid moves downward through the central aperture 16, the fluid at the inlet In flows into the space A through the side aperture 16a at the edge, but in fact the central aperture 16. Since the size of is larger than the side through holes 16a, the amount of fluid flowing from the A portion to the outlet side is large, and the amount of fluid flowing from the inlet IN to the A portion is small. Therefore, the up and down diaphragm 12b is moved upward by the pressure difference, and the fluid can flow directly from the inlet IN to the outlet OUT.

When the plunger 14 moves downward, the lower end of the plunger 14 closes the through hole 16, and the pressure of the fluid supplied into the space A through the side through hole 16a. It acts on the upper surface of the diaphragm holder 12a to maintain the blocking state from which fluid is not supplied to the outlet OUT.

However, in the solenoid valve according to the prior art of such a configuration, the inlet IN and the OUT, which are the inflow and outflow passages of the fluid, are respectively protruded from both sides of the valve body, so that the size of the entire valve is increased, according to various uses. Space limitations are involved in the installation of suitably arranged solenoid valves.

In addition, since the arrangement of the flow pipe of the fluid via the solenoid valve is also limited by the valve structure of the solenoid valve, it may cause the complexity of the pipe, which not only complicates the inside of the structure in which the valve is installed, but also installs the valve and Make maintenance uncomfortable.

The present invention is devised to solve the above-mentioned problems of the prior art, an object of the present invention is to flow the fluid through the valve body on the same axis to simplify the structure of the flow pipe, the design freedom of the flow pipe It is to provide a coaxial flow solenoid valve to increase the, and to reduce the installation space of the valve.

In order to achieve the above object, the present invention is a solenoid portion having a solenoid operated plunger; A hollow cylindrical valve body installed on one side of the solenoid portion, the valve body being composed of vertically spaced inner and outer cylindrical portions coaxially spaced apart from each other, wherein the inner and outer cylindrical portions are fluid inlets, and the inner cylindrical portion is a fluid outlet; A disc-shaped holder having a central hole opened and closed by the plunger of the solenoid portion, and an outer hole formed in an outer portion thereof; A sealing diaphragm coupled to a lower portion of the holder to seal the upper portion of the inlet and the outlet in normal operation and to communicate the upper portion of the inlet and the outlet in operation with the plunger, and communicate with the central and outer apertures of the holder. To provide a coaxial flow solenoid valve.

According to another aspect of the present invention, the present invention includes a solenoid portion having a solenoid operated plunger; A hollow cylindrical valve body installed on one side of the solenoid part, consisting of horizontal coaxial horizontal inner and outer cylinder parts spaced apart from each other, between the inner and outer cylinder parts, the fluid inlet port, the inner cylinder part is the fluid outlet port, and the outlet end is bent toward the plunger side. A valve body; A disc-shaped holder having a central hole opened and closed by a plunger of the solenoid portion, and an outer hole formed in an outer portion thereof; A sealing diaphragm coupled to the lower portion of the holder to seal the inlet and outlet ends in normal operation and to communicate the inlet and outlet tops with each other during plunger operation, and communicate with the central and outer apertures of the holder. To provide a coaxial flow solenoid valve.

According to one embodiment of the present invention, the inner and outer cylindrical end of the valve body is characterized in that the different length.

According to an embodiment of the present invention, the flow path adapter is fastened to the inner and outer cylindrical end of the valve body.

According to one embodiment of the present invention, the flow path adapter is characterized in that any one of the straight, T-type, L-type adapter formed in the inlet and outlet passage separately.

According to an embodiment of the present invention, the inner and outer cylindrical portion of the valve body and the flow path adapter is characterized in that the interference fit.

According to an embodiment of the present invention, the inner and outer cylindrical portion of the valve body and the flow path adapter is characterized in that the O-ring sealing fastening.

According to an embodiment of the present invention, the inner and outer cylindrical portion of the valve body and the flow path adapter is characterized in that the screw is fastened.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

2A and 2B are cross-sectional views of non-operation and operation of the solenoid valve according to an embodiment of the present invention.

2A and 2B, the solenoid valve according to the exemplary embodiment of the present invention includes a solenoid part 100 and a valve body 200.

The solenoid portion 100 is a known configuration, briefly explaining the configuration, includes a casing 110, a solenoid coil 120, a plunger 130, elastic means 140 such as a spring.

The plunger is inserted together with a spring into the central cylindrical portion 135b of the plunger holder between the solenoid coils 120 and protrudes outward by the spring force. When the power is supplied to the solenoid terminal 115, the action of the solenoid coil is applied. Is retracted into the central cylindrical portion.

The other side 135a of the plunger holder forms a cylindrical portion of low height approximately coinciding with the width of the solenoid portion 100.

The valve body 200 is a hollow cylindrical valve body installed on one side of the solenoid portion 100, and is composed of vertical, inner and outer cylindrical portions 210a and 210c of coaxially spaced apart from each other.

The inner and outer cylindrical portions form the fluid inlet IN, and the inner cylindrical portion 210c forms the fluid outlet OUT.

At this time, the second outer cylindrical portion 210b slightly protruding toward the inner circumferential side of the outer cylindrical portion 210a may be formed, and in this case, the fluid inlet IN may be formed between the second cylindrical portion and the inner cylindrical portion 210c. The upper portion of the second cylindrical portion is formed in a state spaced apart from the inner circumference of the outer cylindrical portion 210a, and the outer circumferential portion of the sealing diaphragm described later is seated in the space therebetween.

The holder 300 and the sealing diaphragm 400 are disposed between the solenoid portion 100 and the valve body 200.

Holder portion 300 is made of a disk shape, has a central through hole 300a which is opened and closed by the plunger 130 of the solenoid portion 100 and the outer through hole 300b formed in the outer portion, the outer peripheral portion of the flange portion 300c.

In addition, the holder part 300 may include a guide protrusion 300d protruding downward from the central through hole 300a, which will be described later, while inducing the fluid outlet OUT into the guide protrusion, and additionally, It serves to open or close mutual communication between fluid outlets.

The holder 300 is subjected to a pressing load by the plunger 130 protruding by receiving elasticity by the spring 140 when it is normal (when the plunger is not in operation), and thus the central through hole 300a is also closed ( 2a). When the plunger is operated, that is, when the plunger is retracted, the holder 300 is freed from the pressing load, and is lifted slightly by the input pressure of the fluid acting on the opposite side, and the central through hole 300a is opened. (See FIG. 2B).

The sealing diaphragm 400 is coupled to the lower part of the holder 300 in a state of being fitted to the guide protrusion 300d of the holder, and has a through hole 400b similar to the outer through hole 300b of the holder 300, and an outer circumferential portion thereof. It is made of a flange shape is fixed to the upper portion of the second cylindrical portion.

The sealing diaphragm 400 is seated between the inner and outer cylinder portions and the upper portion of the inlet and outlet ports respectively formed in the inner cylindrical portion, so that the fluid flow occurs by sealing the upper portion of the inlet and the outlet during normal operation (not in operation of the plunger). (See FIG. 2A).

When the plunger is operated (when the plunger is retracted), the load pressing the holder is removed, so that the diaphragm 400 engaged with the holder is also free, at which time the mutual communication is closed while being slightly lifted upward by the input pressure of the fluid. It makes the inlet and outlet in communication with the state (see Fig. 2b).

When the plunger is not in operation, some fluid may flow from the inlet which is closed by the holder and the diaphragm through the outer openings 300b and 400b of the holder and the diaphragm into the upper part of the holder, which is pressurized by the spring force. ) To prevent the plunger's pressing load of the plunger from flowing out due to sudden vibration, external force, or other reasons, even when the holder and the diaphragm are under pressing load. The pressure is added to the pressing load on the plunger to reliably press the holder and diaphragm.

A solenoid valve according to another embodiment of the present invention is shown in FIG. 3.

The solenoid valve of FIG. 3 arranges the inner and outer cylindrical parts of the valve body in a horizontal type rather than the vertical type as shown in FIG. 2, thereby providing a fluid inlet IN and an outlet OUT formed between the inner and outer cylindrical parts and the inner cylindrical part, respectively. It is formed coaxially on one side of the valve body 200 '.

Therefore, it is the same as the solenoid valve of the embodiment of FIG. 2 except that the tip 210c 'of the inner cylindrical portion 210c is bent to the plunger side.

The solenoid valve according to FIGS. 2 and 3 can fasten various types of flow path adapters, and examples of fastening of the flow path adapters are shown in FIGS. 4A, 4B, and 4C.

4A is a cross-sectional view illustrating a straight flow path adapter 500a that may be fastened to the solenoid valve of FIG. 2 or 3.

4B is a cross-sectional view illustrating a T-type flow path adapter 500b that may be fastened to the solenoid valve of FIG. 2 or 3.

4C is a cross-sectional view illustrating an L-type flow path adapter 500c that may be fastened to the solenoid valve of FIG. 2 or 3.

Referring to these drawings, the inner and outer cylindrical ends of the valve body are different lengths, and the flow path adapter is fastened to the ends.

The flow path adapter may be any one of a straight type 500a (c FIG. 4a), a t-type 500b (4b), and an L-type 500c (FIG. 4c) adapter having a separate inflow passage.

At this time, the inner and outer cylindrical portion of the valve body and the flow path adapter is sealed by the O-ring 450, in addition, it can be fastened in the interference fit or screw type.

According to the above-described configuration, the coaxial flow solenoid valve of the present invention simplifies the structure of the flow pipe by increasing the flow of fluid through the valve body on the same axis, increases the design freedom of the flow pipe, and the installation space of the valve Can be reduced.

Claims (8)

A solenoid portion having a solenoid operated plunger; A hollow cylindrical valve body installed on one side of the solenoid portion, the valve body being composed of vertically spaced inner and outer cylindrical portions coaxially spaced apart from each other, wherein the inner and outer cylindrical portions are fluid inlets, and the inner cylindrical portion is a fluid outlet; A disc-shaped holder having a central hole opened and closed by the plunger of the solenoid portion, and an outer hole formed in an outer portion thereof; A sealing diaphragm coupled to the lower part of the holder to seal the upper part of the inlet and the outlet part in normal operation and to communicate the upper part of the inlet part and the outlet part with each other when the plunger is operated. Coaxial flow type solenoid valve comprising a. A solenoid portion having a solenoid operated plunger; A hollow cylindrical valve body installed on one side of the solenoid part, consisting of horizontal coaxial horizontal inner and outer cylinder parts spaced apart from each other, between the inner and outer cylinder parts, the fluid inlet port, the inner cylinder part is the fluid outlet port, and the outlet end is bent toward the plunger side. A valve body; A disc-shaped holder having a central hole opened and closed by the plunger of the solenoid portion, and an outer hole formed in an outer portion thereof; A sealing diaphragm coupled to the lower part of the holder to seal the inlet and outlet ends in normal operation and to communicate the inlet and outlet upper parts with each other in plunger operation, and communicate with the central and outer apertures of the holder. Coaxial flow type solenoid valve comprising a. The coaxial flow solenoid valve according to claim 1 or 2, wherein the inner and outer cylindrical ends of the valve body have different lengths. The coaxial flow solenoid valve according to claim 1 or 2, wherein a flow path adapter is fastened to inner and outer cylindrical ends of the valve body. 5. The coaxial flow solenoid valve according to claim 4, wherein the flow path adapter is any one of a straight type, a T type, and an L type adapter having a separate inflow passage. 5. A coaxial flow solenoid valve according to claim 4, wherein the inner and outer cylindrical portions of the valve body and the flow path adapter are tightly fastened. 5. A coaxial flow solenoid valve according to claim 4, wherein the inner and outer cylindrical portions of the valve body and the flow path adapter are O-ring sealed. 5. A coaxial flow solenoid valve according to claim 4, wherein the inner and outer cylindrical portions of the valve body and the flow path adapter are screwed together.

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