KR101391283B1 - A solenoid valve for space heating - Google Patents

Abstract

The present invention relates to a heating solenoid valve with improved airtightness.
A bobbin and a head coupled to the valve body to generate a magnetic field according to whether the power is applied and a plunger for selectively shielding the heating water movement path of the valve body by the magnetic field, A plate provided between the frame and the valve body for shielding a part of the heating water flow path of the valve body to provide a space for mounting the sealing member while preventing leakage, The plunger is provided with a center hole through which a part of the lower end of the plunger passes, and a part of the plunger is formed at the edge of the center hole to provide a space for moving the plunger A plunger accommodating portion formed on a lower surface thereof, And a second groove formed between the bobbin and the upper surface of the plate at an edge of the plunger receiving portion and in contact with the bobbin so that the sealing member is seated in contact with the plunger, Grooves are formed.
According to the present invention, there is an advantage that the outflow of the heated water is prevented by a plurality of airtight structures, and safety and durability are improved.

Description

[0001] The present invention relates to a solenoid valve for space heating,

The present invention relates to a heating solenoid valve with improved airtight performance.

Generally, in the heating apparatus, the heating water heated by the boiler is configured to be heated by the heat exchange while circulating the space to be heated through the pipe.

The pipe is provided with a heating valve for individually controlling the heating of each space. Such a heating valve is configured to be manually operated or electrically controlled using a solenoid valve.

FIG. 1 shows a configuration of an operation method of a heating solenoid valve according to the related art.

More specifically, FIG. 1 is a Korean registered utility model 20-0357270 "Solenoid valve for heating" filed in 2004 by the present applicant of the present invention, which enhances permeability to foreign substances and reduces power consumption and heat generation of the valve as well as operation noise have.

However, in the prior art, a sealing member is provided between the valve body 1 and the frame 10 to maintain airtightness. However, when the plunger 3 is operated, leakage occurs between the plunger shaft and the plunger support 4, Can be introduced. In addition, as the repetition of the plunger ③ is performed after the inflow of the heating water, the bobbin ⑥ and the plunger ③ are worn inside the frame ⑩ due to the foreign substances included in the heating water and the foreign matter is accumulated on the movement path of the plunger ③ , The failure condition may occur in the operation of the plunger ③.

That is, in general, since the heating solenoid valve operates in a bad condition such as frequent opening and closing operations and high temperature and high temperature water around 70 ° C and rust, it has a problem that the hermetic sealing portion can be easily worn. There is no structure for preventing water leakage between the axis of the plunger ③ performing the repeated operation and the plunger support ④ supporting the plunger ③, so that the operation of the plunger ③ is caused by the heating water flowing into the frame ⑩ .

An object of the present invention is to provide a heating solenoid valve having improved airtightness performance by using a plurality of airtight structures.

A bobbin and a head coupled to the valve body to generate a magnetic field according to whether the power is applied and a plunger for selectively shielding the heating water movement path of the valve body by the magnetic field, A plate provided between the frame and the valve body for shielding a part of the heating water flow path of the valve body to provide a space for mounting the sealing member while preventing leakage, The plunger is provided with a center hole through which a part of the lower end of the plunger passes, and a part of the plunger is formed at the edge of the center hole to provide a space for moving the plunger A plunger accommodating portion formed on a lower surface thereof, And a second groove formed between the bobbin and the upper surface of the plate at an edge of the plunger receiving portion and in contact with the bobbin so that the sealing member is seated in contact with the plunger, And a groove is formed.

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The first groove is provided with a first central sealing member for shielding the heating water flowing when the plunger moves up and down, and the second groove is shielded between the bobbin and the sealing member so that the heating water can be prevented from flowing out. The second central sealing member is received.

And a lower sealing member is further provided between the fixing plate and the valve body to further prevent a leakage of the heating water to the outside of the valve body while pressing the fixing plate. And an upper sealing member for preventing the water from flowing out.

According to the present invention, the plate is provided with a first groove for cutting off the heating water flowing through the plunger, a first central sealing member is mounted in the first groove, and the first central sealing member is pressed So that the airtightness can be maintained more firmly.

Further, a lower sealing member may be further provided between the fixing plate and the valve body to block the heating water flowing out to the outside of the valve body while pressing the fixing plate, and a second central sealing member It is possible to block the heating water that can be discharged to the joint portion of the bobbin and the valve body by the member.

In addition, since the upper sealing member provided between the bobbin and the head can block the heating water that can flow out to the upper side of the bobbin, the airtightness performance is improved, and the operation stability and durability can be further improved.

1 is a view showing a configuration of an operation method of a heating solenoid valve according to the related art;
2 is a view showing the appearance of a heating solenoid valve according to the present invention.
3 is an exploded perspective view showing a detailed configuration of a heating solenoid valve according to the present invention.
4 is a cross-sectional view showing a detailed structure of a plate which is a main constituent of a heating solenoid valve according to the present invention.
5 is a sectional view showing the internal structure of a heating solenoid valve according to the present invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. It is to be understood, however, that the spirit of the invention is not limited to the embodiments shown and that those skilled in the art, upon reading and understanding the spirit of the invention, may easily suggest other embodiments within the scope of the same concept.

FIG. 2 is a view showing an outer appearance of a heating solenoid valve according to the present invention, and FIG. 3 is an exploded perspective view showing a detailed configuration of a heating solenoid valve according to the present invention.

Referring to these drawings, a heating solenoid valve 100 according to the present invention includes a valve body 200 having a flow path for heating water therein and connected to a pipe, a valve body 200 coupled to the valve body 200, A frame 400 accommodating a bobbin 410 for generating a magnetic field therein and a plunger 450 for selectively shielding the heating water path of the valve body 200, And an outer surface including the cover 300 provided on the outer side is formed.

In detail, in the valve body 200, the heating water flowing into the inside flows along a predetermined movement path. A frame 400 including the plunger 450 is fastened to the upper side of the flow path, and the plunger 450 The moving path of the heating water is selectively shielded.

For this, a head 440 is provided inside the frame 400 inside the bobbin 410 (refer to FIG. 5) above the plunger 450, and the plunger 450 To move up and down.

That is, when a power source is applied, a magnetic field is generated around the head 440, and the plunger 450 is moved upward to open the movement path of the heating water.

When the power supply is canceled, an elastic member 430 is further provided between the head 440 and the plunger 450 so that the self-weight of the plunger 450 and the restoring force of the elastic member 430 The plunger 450 moves downward to block the movement path of the heating water.

Meanwhile, the power supply for the above operation is performed through a power terminal 420 protruding outside the upper part of the frame 400, and the power terminal 420 is exposed to the outside of the cover 300 .

Further, a fixing member 360 for fixing the position of the head 440 is further provided at an upper center portion of the cover 300.

A rib-shaped fastening portion is formed on the lower edge of the cover 300 and the fastening portion can be fastened to the frame 400 and the valve body 200 by fastening members 320 such as screws . A fastening pad 210 having a predetermined thickness may be further provided between the valve body 200 and the frame 400 in order to firmly fix the valve body 200.

A plate (not shown) is provided between the frame 400 and the valve body 200 to shield a part of the heating water flow path of the valve body 200 to prevent leakage, 600 are further provided.

FIG. 4 is a cross-sectional view showing a detailed structure of a plate, which is a main component of a heating solenoid valve according to the present invention, and FIG. 5 is a sectional view showing the internal structure of a heating solenoid valve according to the present invention.

Before describing the plate 600, the valve body 200 may include a heating water inlet 220 through which a pipe is connected and the heating water is introduced, A heating water discharging portion 240 through which the heating water introduced through the water inlet 220 is discharged and the discharge pipe is connected to the heating water outlet 260 and a heating water controller 260 selectively shielding the flow channel by the plunger 450 .

More specifically, the heating water control unit 260 is configured to selectively block the flow path by the packing 470 provided at the end of the plunger 450, and the upper side of the packing 470 is opened to open the plate 600 .

Accordingly, the plate 600 is formed to have a diameter enough to cover the open upper side of the heating water control part 260, and is made of a metal material which does not generate rust because it is in direct contact with the heating water.

A plurality of sealing members may be provided on the plate 600 to prevent the heating water from flowing into the bobbin 410 when the valve body 200 and the frame 400 are connected to each other or when the plunger 450 is operated. Thereby providing a mounting space for the sealing member to be mounted.

In detail, a center hole 610 is formed at a central portion of the plate 600 such that a lower end portion of the plunger 450 passes through the center hole 610.

A plunger receiving portion 670 is formed at the edge of the center hole 610 to accommodate a portion of the plunger 450 to provide a space for moving the plunger 450 up and down.

That is, the plunger receiving portion 670 is configured to shield the one side of the flow path of the heating water control portion 260 while the plunger 450 moves by the magnetic field. At least the movement of the packing 470 May be formed at a depth corresponding to the distance.

A first groove 630 is formed on the lower surface of the plate 600 to surround the center hole 610 and to seal the plunger 450.

The first groove 630 is formed at a portion where the first central sealing member 640 is fitted to the first groove 630 for the purpose of blocking the inflow of the heating water through the plunger 450 passing through the central hole 610 and moving up and down. to be.

A second groove 650 is formed at an edge of the plunger receiving portion 670 and is a space formed between the bobbin 410 and the upper surface of the plate 600 to seal the bobbin 410 Lt; / RTI >

The second groove 650 is a portion to which the second central sealing member 660 for fitting the bobbin 410 to the valve body 200 and the plate 600 is inserted.
That is, the second central sealing member 660 seals between the upper surface of the plate 600 and the frame 400 so that the first central sealing member 640 is worn and the heating water flows into the bobbin 410 The heating water can be prevented from flowing out through the joint portion between the plate 600 and the frame 400.

On the other hand, a fixing plate 680 for pressing the first central sealing member 640 to improve the sealing force is provided on the lower side of the plate 600 to prevent the heating water from flowing out by using the plurality of sealing members as described above Respectively.
The fixing plate 680 is configured to support the first central sealing member 640 and a hole is formed at a central portion thereof so that the shaft of the plunger 450 can pass through. Accordingly, the fixing plate 680 can maintain a fixed position even when the plunger 450 is moved.

A lower sealing member 620 is further provided between the fixing plate 680 and the valve body 200 to prevent the heating water from flowing out between the valve body 200 and the plate 600.

Accordingly, the sealing force can be further improved by increasing the pressure applied to the first central sealing member 640 by further pressing the lower sealing member 620 against the fixing plate 680, and the first central sealing member 640 The sealing force of the lower sealing member 620 can also be improved.

In the heating solenoid valve 100 according to the present invention, the first central sealing member 640, the second central sealing member 660, and the lower sealing member 620, which are provided around the plate 600, The upper sealing member 340 is interposed between the head 440 and the bobbin 410 to prevent the heating water from flowing out to the outside of the bobbin 410. In this case, .

That is, when the sealing member around the plate 600 is damaged, the upper sealing member 340 blocks the outflow of the heating water flowing into the bobbin 410 once again, and the heating solenoid valve 100 The stability and the durability of the battery can be improved.

100 ..... Heating solenoid valve 200 ..... Valve body
220 ..... Heating water inlet part 240 ..... Heating water outlet part
260 ..... Heating water control part 300 ..... Cover
320 ..... fastening member 340 ..... upper sealing member
360 ..... fixing member 400 ..... frame
410 ..... bobbin 420 ..... power terminal
430 ..... elastic member 440 ..... head
450 ..... plunger 470 ..... packing
600 ..... plate 610 ..... center hole
620 ..... lower sealing member 630 ..... first groove
640 ..... first central sealing member 650 ..... second groove
660 ..... second central sealing member 670 ..... plunger receiving portion
680 ..... Fixed plate

Claims (4)

delete A valve body through which the heating water passes;
A frame coupled to the valve body and including a bobbin and a head for generating a magnetic field according to power application, and a plunger for selectively shielding the heating water movement path of the valve body by the magnetic field;
A plate provided between the frame and the valve body to shield a part of the heating water flow path of the valve body to provide a mounting space for the sealing member while preventing leakage of water; And
And a fixing plate provided between the plate and the valve body for pressing the sealing member,
The plate
A center hole through which a lower end portion of the plunger passes,
A plunger accommodating portion formed at an edge of the center hole for accommodating a portion of the plunger, thereby providing a space for moving the plunger;
A first groove formed in the lower surface of the center hole and recessed upward in the vicinity of the center hole and in which the sealing member is seated so as to be in contact with the plunger,
And a second groove is formed between the bobbin and the upper surface of the plate at an edge of the plunger receiving portion, the second groove being a space in which the sealing member is seated so as to contact the bobbin.
3. The method of claim 2,
The first groove is provided with a first central sealing member for shielding the heating water flowing when the plunger moves up and down,
And a second central sealing member is disposed in the second groove to shield the bobbin and the sealing member so as to prevent leakage of the heating water.
The method of claim 3,
A lower sealing member is further provided between the fixing plate and the valve body to further prevent the flow of the heating water to the outside of the valve body while pressing the fixing plate,
And an upper sealing member is provided between the head and the bobbin to prevent the heating water from flowing out of the bobbin.

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