KR101061123B1 - Solenoid Valve and Gas Dryer Using the Same - Google Patents

Abstract

The present invention relates to a solenoid valve, and more particularly, to a solenoid valve that can replace the solenoid coil and a gas dryer using the same.

To this end, the present invention, the valve body 10 is formed with an opening 12 is formed so that a flow path 11 through which a predetermined gas or liquid flows, and communicates with the outside; A sealing cap 20 installed to seal the opening 12 of the valve body 10; A plunger (30) positioned inside the sealing cap (20) and installed to open and close the flow path (11) of the valve body (10); And, it is detachably installed on the outside of the sealing cap 20, the core portion 40 to open the flow path 11 by applying a force to the plunger 30 as the power is applied: It provides a solenoid valve configured.

Solenoid valve

Description

Solenoid valve and gas dryer using the same

1 is a cross-sectional view showing the configuration of a solenoid valve according to the present invention.

Figure 2 is a cross-sectional view showing the configuration of a gas dryer to which the solenoid valve according to the present invention is applied.

3 is a cross-sectional view showing the configuration of the solenoid valve of FIG.

Explanation of symbols on the main parts of the drawings

10 valve body 11: flow path

12: opening 20: sealing cap

21: guide portion 22: skirt portion

30: plunger 31: shaft portion

32: iron core 33: spring

40 core part 41 solenoid coil

42: case 43: connection terminal

51,61: fastening member 52: O-ring

71: case 72: drum

73,74: Duct 81: Mixing tube                 

82: ignition device 83: funnel

85: nozzle S: solenoid valve

The present invention relates to a solenoid valve, and more particularly, to a solenoid valve that can replace the solenoid core, and a gas dryer using the same.

A general solenoid valve is a device which is installed in a gas or liquid transfer pipe or a pipe and opens and closes a gas or liquid transfer flow path. The solenoid valve is applied to various appliances such as a gas range using a gas, a microwave oven and a gas dryer, a washing machine using a water, a dish washer, and the like. In addition, it is applied to various fields. Hereinafter, the solenoid valve will be described on the basis of being used in the gas appliance.

The solenoid valve includes a valve body in which a predetermined flow path is formed, and a solenoid core portion assembled to the valve body to open and close a predetermined flow path. This solenoid valve opens and closes the flow path as the current is supplied and interrupted.

However, the conventional solenoid valve has the following problems.

First, when the valve body and the solenoid coil part are separated, the flow path of the valve body is exposed to the outside so that gas leaks. Therefore, when servicing the solenoid valve, there is a problem in that the solenoid valve must be replaced with a cylinder. In addition, there is a problem in that the service cost increases, and the service time is significantly increased.

Second, since the valve body is connected to the gas pipe is disassembled, there is a problem that a separate gas leakage inspection must be performed after service replacement.

In order to solve the above-mentioned problems, an object of the present invention is to provide a solenoid valve and a gas-type dryer using the same, which can replace the solenoid core, and reduce the service cost and service time.

In addition, an object of the present invention is to provide a solenoid valve and a gas dryer using the same, which does not need to perform a separate gas leakage test after the service replacement of the solenoid valve.

In order to achieve the above object, the present invention provides a flow path through which a predetermined gas or liquid flows, the valve body formed with an opening to communicate with the outside; A sealing cap installed to seal the opening of the valve body; A plunger positioned inside the sealing cap and installed to open and close a flow path of the valve body; And, it is detachably installed on the outer side of the sealing cap, and is configured to include a solenoid valve including a core portion for opening the flow path by applying a force to the plunger as power is applied.                     

A guide part having a hollow inside is formed to protrude outward from the sealing cap, and a plunger is inserted into the guide part so as to be movable. At this time, the core portion is preferably inserted into the outside of the guide portion.

The guide portion is formed in a cylindrical shape. In addition, a tension spring is provided between the sealing cap and the plunger to exert an elastic force in a direction to push the plunger away from the sealing cap.

The sealing cap is preferably fastened to the opening of the valve body by a fastening member. In addition, the O-ring is preferably installed between the opening of the valve body and the sealing cap to prevent gas leakage.

According to another aspect of the invention, the duct is installed to supply heat into the drum; A valve body connected to the gas pipe, a gas flow path is formed, and formed with at least two openings to communicate with the outside; a sealing cap installed to seal each opening of the valve body; And a plunger installed to open and close the flow path of the valve body, and a detachably installed outside of the sealing cap, and a core part which opens the flow path by applying force to the plunger as power is applied. Solenoid valves; And a mixing tube connected to the solenoid valve to mix the gas discharged from the solenoid valve and external air, and an ignition device installed in the mixing tube to ignite the mixed gas discharged through the outlet of the mixing tube; It is disposed on the outlet side of the mixing pipe, is connected to the inlet side of the duct provides a gas-type dryer comprising a hot air generating device comprising a funnel for supplying hot air generated by the combustion of the gas to the duct: .

Therefore, according to the present invention, it is possible to shorten the service cost and the service time at the time of service replacement, and to omit a separate gas leakage test.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described.

Referring to Figure 1, one embodiment of a solenoid valve according to the present invention will be described.

The solenoid valve includes a valve body 10 having a gas flow path 11 through which a predetermined gas or liquid flows, and having an opening 12 formed therein so as to communicate with the outside, and an opening 12 of the valve body 10. A sealing cap 20 installed to seal the plunger, a plunger 30 positioned inside the sealing cap 20 and installed to open and close the flow passage 11 of the valve body 10, and It is detachably installed on the outside of the sealing cap 20, and is configured to include a core portion 40 for opening the flow path 11 by applying a force to the plunger 30 as the power is applied.

A communication hole 11a is formed in the gas flow path 11 so as to correspond to the opening 12 of the valve body. As the communication hole 11a is opened and closed by the plunger 30, the gas flow path 11 is opened and closed.

The sealing cap 20 has a guide portion 21 having a hollow protruding outward. At this time, the guide portion 21 is formed in a cylindrical shape, the skirt portion 22 is formed on the edge of the guide portion 21. The skirt portion 22 of the sealing cap 20 is coupled to the opening 12 of the valve body 10. At this time, the skirt portion 22 of the sealing cap 20 is fastened to the opening 12 of the valve body 10 by a fastening member 51 such as a bolt or integrally fastened by a separate welding method. Can be. At this time, when the bolt is applied, it is preferable to be installed to be assembled and disassembled from the outside of the valve body (10). In addition, the O-ring 52 may be installed between the opening 12 of the valve body 10 and the sealing cap 20 to prevent gas leakage. In addition, when welding the sealing cap to the opening of the valve body, there is no fear of gas leakage, it is not necessary to install a separate O-ring.

In addition, the sealing cap 20 is preferably made of a non-conductive material. This is to avoid affecting the electromagnetic field generated in the core portion 40.

The plunger 30 is inserted into the guide part 21 to be movable. The plunger 30 is connected to the shaft portion 31 inserted into the guide portion 21 and one end of the shaft portion 31 so as to open and close the flow path 11 of the valve body 10. It is composed of an iron core (32). In addition, it is preferable that a tension spring 33 is provided between the sealing cap 20 and the plunger 30 to exert an elastic force in the direction of pushing the plunger 30. The reason is that when the core part breaks down, the flow path of the valve body is closed by the tension spring.

 Therefore, when power is applied to the core part 40, the iron core part 32 is pulled toward the core part 40, thereby opening the flow path 11 of the valve body 10. In addition, when the power is cut off to the core portion 40, the flow path 11 of the valve body 10 is closed by the tension force of the tension spring 33.

In addition, the core part 40 is inserted outside the guide part 21.

The core part 40 includes a solenoid coil 41 disposed to surround the guide part 21, a case 42 installed to surround the coil, and a solenoid coil 41 passing through the case 42. It is configured to include a connection terminal 43 connected to. At this time, the edge of the case 42 is fastened to the skirt portion 22 of the sealing cap. For example, it is preferable to be fastened by a fastening member 61 such as a screw. Accordingly, the core part 40 may be separated from the valve body 10 after removing the screw of the case 42.

At this time, the fastening member 51 for coupling the skirt portion 22 of the core portion 40 and the sealing cap 20, and the fastening member 61 for coupling the valve body 10 and the sealing cap 20. It is preferable to use separately.

The disassembly process of the solenoid valve configured as described above will be described.

When the failure occurs in the core portion 40, the tension spring 33 acts an elastic force to push the plunger 31, the gas flow path 11 of the valve body is closed.

During service replacement, the fastening member 51 installed in the case 42 of the core part 40 is disassembled, and then the core part 40 is separated from the valve body 10. At this time, the sealing cap 20 is in a state of sealing the opening 12 of the valve body 10. Since the sealing cap 20 seals the opening 12 of the valve body 10, even if only the core part 40 is replaced, the gas inside the valve body 10 does not leak. As such, only the core unit 40 needs to be replaced when the service is replaced.

2, an embodiment of a gas dryer according to the present invention will be described.

The gas dryer has ducts 73 and 74 installed to supply heat to the drum 72, a solenoid valve S for supplying and blocking gas, and a gas discharged from the solenoid valve to ignite hot air. It is configured to include a hot air generating device 80 to supply to.

In this case, the drum 72 is rotatably installed in the case 71, and a driving unit is installed to rotate the drum. As shown in FIG. 2, an indirect driving method including a motor 75 generating a driving force and a belt 76 rotating the drum by receiving the driving force of the motor is applied. Of course, it is also understood that the driving unit may be directly connected to a direct drive system in which a motor shaft is directly connected to the drum.

In addition, as illustrated in FIG. 2, the ducts 73 and 74 apply exhaust ducts in which heat generated in the hot air generator is introduced into the drum and discharged to the outside along with moisture included in the laundry. Since the moisture is discharged to the outside of the exhaust duct, there is no need to install a separate condenser to collect moisture during the heat. Alternatively, although not shown, a waste circulation duct for circulating the heat generated by the hot air generator may be applied. These closed loop ducts should be provided with a separate condenser to collect moisture. Fans for flowing hot air are installed in the exhaust duct and the closed circulation duct. The duct according to the present invention described above is a concept including both the exhaust duct and the closed circulation duct.

On the other hand, the hot air generator 80 is connected to the solenoid valve (S), the mixing pipe 81 for mixing the gas discharged from the solenoid valve and the outside air, and installed in the mixing pipe of the mixing pipe An ignition device 82 for igniting the mixed gas discharged through the outlet, and is disposed on the outlet side of the mixing pipe, connected to the inlet side of the duct to supply the hot air generated by the combustion of the gas to the duct Funnel 83 is configured.

At this time, the solenoid valve (S) is provided with an injection nozzle 85 for injecting gas, the suction portion of the mixing pipe 81 is connected to the injection nozzle (85). Preferably, the suction part of the mixing pipe is coupled to the valve body of the solenoid valve so that no gas leaks. In addition, a predetermined portion of the discharge portion of the mixing tube 81 is inserted into the suction portion of the funnel 83. In this case, since the suction part of the funnel 83 is formed to have a larger diameter than the discharge part of the mixing pipe 81, the suction air has a structure in which external air is sucked through a gap between the suction part of the funnel and the discharge part of the mixing pipe. . In addition, the funnel is preferably formed so that the diameter becomes smaller toward the duct side. This is to improve the suction performance of the outside air and to reduce the flow path resistance.

Referring to Fig. 3, the above-described solenoid valve will be described.

The solenoid valve S is connected to a gas pipe G, a gas flow path 11 is formed, and at least two or more openings 12 are formed to communicate with the outside, and the valve body 10 A sealing cap 20 installed to seal each opening, a plunger 30 positioned inside the sealing cap and installed to open and close a gas flow path of the valve body, and detachable to the outside of the sealing cap. It is installed to be possible, and comprises a core portion 40 for opening the flow path by applying an attractive force to the plunger as power is applied.

At this time, in order to prevent the safety of users and gas leakage, the solenoid valve is to open and close the gas flow path 11 at least double. For example, the communication hole 11a is formed on the gas flow path so as to correspond to each opening of the valve body 10, and the plunger 30 is disposed to open and close the communication hole. In addition, the core 40 is detachably inserted into the sealing cap of each of the openings.

Since the structure of the sealing cap, the plunger and the core portion of the solenoid valve is substantially the same as described above in the above-described embodiment of the solenoid valve, a description thereof will be omitted.

2 and 3, the drying stroke of the above-described gas dryer will be described.

Power is applied to the core portion 40 of the solenoid valve, and the plunger 30 is attracted by the attraction force of the core portion. Subsequently, the gas supplied through the gas pipe G flows into the gas flow path 11 of the solenoid valve. This gas is mixed with the outside air while passing through the mixing tube 81, and the mixed gas is ignited by the ignition device 82 to form a flame. The flame is injected into the funnel 83. At this time, as the outside air is introduced into the funnel is heated by the flame.

At the same time, as the drum 72 is rotated, the laundry falls to the lower side when it reaches the upper side. In addition, the fan 77 disposed on the discharge side of the duct 74 is rotated to suck the air from the duct 73 and the drum 71 on the suction side of the drum. Therefore, the heat of the duct 73 is introduced into the drum to heat the laundry. As the laundry is heated, the moisture of the laundry evaporates. Evaporated moisture and heat are released to the outside through the duct.

The laundry is dried as this process proceeds for a predetermined time.

The solenoid valve and the gas dryer according to the present invention described above have the following effects.

First, according to the solenoid valve according to the present invention, the sealing cap seals the opening of the valve body to block the gas flow path from the outside. Therefore, the installation of the core portion outside the sealing cap has nothing to do with gas leakage. Therefore, since only the core part needs to be replaced while leaving the valve body intact, the service time and the service cost can be significantly reduced. In addition, there is an effect that even a person without a separate gas certification can be directly replaced the core portion in the field.

Secondly, according to the solenoid valve according to the present invention, since the valve body connected to the gas pipe is not disassembled, there is no need to perform a separate gas leakage inspection after service replacement.

Third, according to the gas dryer according to the present invention, since the core part of the solenoid valve is detachable from the outside, the solenoid valve can be repaired without disassembling the gas pipe, the mixing pipe, or the like, which is connected to the solenoid valve. Thus, the service time and service cost of the gas dryer can be significantly reduced.

Fourth, according to the gas dryer according to the present invention, there is no need to perform a separate gas leakage inspection after service replacement, and the effect that can be easily repaired in the field without having to wear a broken gas dryer in a service center or a repair shop. have.

Claims (18)

A valve body in which a flow path through which a predetermined gas or liquid flows is formed, and an opening is formed to communicate with the outside; A sealing cap installed to seal the opening of the valve body; A plunger positioned inside the sealing cap and installed to open and close a flow path of the valve body; And, The solenoid valve is detachably installed on the outer side of the sealing cap, and comprises a core portion which opens the flow path by applying an attractive force to the plunger as power is applied. The method of claim 1, The sealing cap is formed to project a guide portion having a hollow outward, The solenoid valve, characterized in that the plunger is inserted into the hollow of the guide portion to be movable. The method of claim 2, A solenoid valve, characterized in that the core is detachably inserted into the outside of the guide portion. The method of claim 3, The solenoid valve, characterized in that the guide portion is formed in a cylindrical shape. The method of claim 3, A solenoid valve between the sealing cap and the plunger is provided with a tension spring for applying an elastic force in the direction to push the plunger away from the sealing cap. 6. The method according to any one of claims 1 to 5, The sealing cap is a solenoid valve, characterized in that fastening to the opening of the valve body by a fastening member. The method of claim 6, A solenoid valve, characterized in that the O-ring is installed between the opening of the valve body and the sealing cap to prevent gas leakage. The method of claim 6, The core part is a solenoid valve, characterized in that fastened to the sealing cap by a fastening member. 6. The method according to any one of claims 1 to 5, The core part is a solenoid valve, characterized in that fastened to the sealing cap by a fastening member. A duct installed to supply heat into the drum; A valve body connected to the gas pipe, a gas flow path is formed, and formed with at least two openings to communicate with the outside; a sealing cap installed to seal each opening of the valve body; And a plunger installed to open and close the flow path of the valve body, and a detachably installed outside of the sealing cap, and a core part which opens the flow path by applying force to the plunger as power is applied. Solenoid valves; And, A mixing tube connected to the solenoid valve to mix the gas discharged from the solenoid valve and external air, an ignition device installed in the mixing tube to ignite the mixed gas discharged through the outlet of the mixing tube, and the mixing And a hot air generating device disposed at an outlet side of the pipe and connected to an inlet side of the duct and including a funnel for supplying hot air generated by combustion of the gas to the duct. The method of claim 10, The sealing cap is formed to project a guide portion having a hollow outward, The gas dryer is characterized in that the plunger is inserted into the hollow of the guide portion to be movable. The method of claim 11, Gas-type dryer, characterized in that the core portion is detachably inserted into the outside of the guide portion. The method of claim 12, Gas guide dryer characterized in that the guide portion is formed in a cylindrical shape. The method of claim 12, Gas tension dryer, characterized in that between the sealing cap and the plunger is provided with a tension spring acting an elastic force in the direction to push the plunger from the sealing cap. The method according to claim 10 or 14, The sealing cap is a gas type dryer, characterized in that fastening to the opening of the valve body by a fastening member. The method of claim 15, O-ring is installed between the opening of the valve body and the sealing cap to prevent gas leakage. The method of claim 16, The core part gas dryer characterized in that the fastening member is fastened to the sealing cap. The method according to claim 10 or 14, The core part gas dryer characterized in that the fastening member is fastened to the sealing cap.

Images