KR200342109Y1 - pressure cotrolling type steam exhausting apparatus of electrical pressure rice oven - Google Patents

Abstract

The steam discharge device of the electric pressure cooker has an opening is formed in one side, the steam blocking plate is formed on the inner wall of the position facing the opening and the steam discharge passage for moving the internal steam; A packing member which is installed to close the opening of the steam discharge passage and is in direct contact with the steam blocking plate by a physical force and opens and closes the steam discharge passage; A moving member fixed to the packing member and wound on a spring; A spring fixing body fastened to the outside of the moving member to elastically support the spring; And a solenoid valve provided with a movable iron core separated from each other by a plurality of dividedly provided coils and a nonmagnetic material and comprising a combination of a plurality of magnetic materials corresponding to the coils to adjust the degree of pressurization of the spring fixing body.

Description

Pressure cotrolling type steam exhausting apparatus of electrical pressure rice oven

The present invention relates to a steam discharge device of the electric pressure cooker, in more detail

The present invention relates to a steam discharge device of a pressure regulating electric pressure cooker which can easily adjust the cooking degree of food by adjusting the compression distance of the moving iron core moving forward and backward by driving the solenoid valve.

In general, the electric pressure cooker is to cook food, such as grains stored therein using electricity as a heating source, the inside of the pressure cooker is cooking is heated while maintaining a high pressure state. Therefore, after the cooking is made, a steam discharge device for discharging the high temperature steam (Steam) generated inside the electric pressure cooker to the outside is necessarily provided on the upper surface of the lid of the pressure cooker.

Such a steam discharge device, as shown in Figure 1, when the electric current is applied to the coil (4) under the control of the microcomputer, the movable iron core (6) is advanced while inducing the electromagnetic force to the movable iron core (6) fixed iron core (41) ), The poppet 12 of the spool 62 is moved forward to close the valve seat 11-1.

At this time, the valve seat (11-1, 11-2) is closed by the solenoid valve 20 and the safety valve 30, respectively, the steam discharge passage (10-1) is blocked the discharge of steam, pressure in this state The food in the container is cooked.

Then, when the cooking of food in the pressure vessel is completed, the steam pressure in the outer lid (2) reaches a predetermined set pressure so that the microcomputer detects this to cut off the current of the coil (4), thereby moving the iron core (6) The poppet 12 of the spool 62 is reversed by the vapor pressure while the electromagnetic force induced in the air is removed, thereby opening the valve seat 11-1.

In addition, as the microcomputer malfunctions due to various causes, the coil 4 is continuously energized, and the electromagnetic force is continuously induced to the movable core 6 so that the valve seat 11-1 of the spool 62 may be caused by the poppet 12. Even if the valve is kept closed, the steam pressure overcomes the elastic force of the compression spring 21 of the safety valve 30 of the normally closed type and the valve seat 11-1 is opened while the poppet 12 is retracted.

However, such a conventional steam discharge device has a problem that can not easily adjust the forward pressure of the movable core of the solenoid valve.

That is, the solenoid valve has a problem that it is not possible to variably control the vapor pressure generated in the cooking process by simply performing the opening and closing operation at a predetermined pressure, so that the food may not cook food under various conditions such as to contain specific moisture.

The object of the present invention is to allow the movable iron core of the solenoid valve to be moved in multiple stages so as to finely control the steam pressure generated in the cooking process to cook food in a variety of conditions steam discharge of the pressure control type electric pressure cooker To provide a device.

1 is a cross-sectional view for explaining a steam discharge device of a conventional pressure-controlled electric pressure cooker,

2 is a cross-sectional view showing a closed state of the steam discharge device of the electric pressure cooker according to an embodiment of the present invention,

3 is a view showing a state in which the high-pressure steam is discharged during cooking progress,

4 is a cross-sectional view showing an open state of the steam discharge device.

※ Explanation of code for main part of drawing

120: solenoid valve 102: steam blocking plate

104: packing member 106: moving member

108: spring 110: spring fixture

112 valve housing 114 coil

116: movable iron core 118: stopper plate

The steam discharge device of the pressure-controlled electric pressure cooker according to the present invention for achieving the above object is an opening is formed in one side, the steam blocking plate is formed on the inner wall of the position facing the opening is the internal steam is moved A steam discharge passage; A packing member installed to close the opening of the steam discharge passage and in direct contact with the steam blocking plate by a physical force and to open and close the steam discharge passage; A moving member fixed to the packing member and wound on a spring; A spring fixing body fastened to the outside of the movable member to elastically support the spring; And a solenoid valve having a movable iron core formed of a combination of a plurality of coils having a plurality of splits and a plurality of magnetic bodies installed at a position corresponding to the coils to adjust the degree of pressurization of the spring fixing body. Provide a steam discharge device of the pressure cooker.

It is preferable to further include a nonmagnetic material between the plurality of movable iron cores.

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

The steam discharge device of the pressure-controlled electric pressure cooker according to the present invention, as shown in Figure 2 and 3, the steam discharge flow path for releasing the internal steam generated in the process of cooking food at high temperature and high pressure state to the outside (100-1, 100-2).

At this time, an opening 103 is formed at one side of the steam discharge passage 100-1 and 100-2, and the lower side of the drawing is located on the inner side of the steam outlet passage 100-1 and 100-2. The vapor blocking plate 102 is formed to block the moving steam.

In addition, the opening 103 of the steam discharge passages 100-1 and 100-2 has elasticity, such as a rubber material, so that the steam is discharged by contacting or spaced apart from the vapor blocking plate 102 while being stretched and contracted by an external physical force. The packing member 104 which opens and closes the flow path 100-1, 100-2 directly is provided.

In addition, a fixing member connected to the packing member 104 and having a spring 108 made of an elastic material wound therein is provided, and the spring 108 is elastically maintained at the front end side of the movable core 116. And the central portion is provided with a spring fixing body 110 through which the moving member 106 passes.

The spring fixing member 110 has a through hole 110-1 formed therein so that the moving member 106 penetrates at a central portion thereof, and one end of the spring 108 is formed around the through hole 110-1. A spring insertion groove 110-2 is formed to be fixed, and a stepped portion supporting the other end of the spring 108 supported by the spring insertion groove 113 on the side of the moving member 106 connected to the packing member 104. (106-1) is formed.

The first coil 114-1 and 114-2 and the second coil 114-3 and 114-4 are accommodated in the valve housing 112 and spaced apart from each other, and the first coil 114-1 is provided. , 114-2) and pressurizes the spring fixture 110 by an electromagnetic force generated by electricity applied inside the second coils 114-3 and 114-4, and the first actuation of the magnetic body. A solenoid valve 120 having a movable iron core 116 having a structure in which an iron core 116-1 and a second movable iron core 116-3 is connected is provided.

At this time, a moving space of the movable member 106 is formed at the front center of the movable iron core 116 of the solenoid valve 120 in contact with the spring fixing body 110, that is, the front center of the first movable iron core 116-1. The guide groove 117 is further provided, and a stopper plate 118 that can block the backward operation of the movable core 116 on the rear portion of the movable iron core 116, that is, on the rear portion of the second movable iron core 116-3. ) Is further provided.

In this case, the first movable iron core 116-1 and the second movable iron core 116-3 have different distances to be moved, and thus the distances at which the spring fixing body 110 is moved by differently moving the distances. By adjusting the it is possible to adjust the degree of compression of the spring 108. Thus, by varying the opening degree of the packing member 104 blocking the blocking plate 102, it is possible to use different pressure setting. At this time, the electromagnetic force induced by the nonmagnetic material 116-4 is interposed between the first and second movable iron cores 116-1 and 116-3, respectively.

Next will be described in more detail with respect to the operation principle of the steam discharge device of the pressure-controlled electric pressure cooker according to an embodiment of the present invention.

First, the coil 114 of any one of the first coils 114-1 and 114-2 and the second coils 114-3 and 114-4 of the solenoid valve 120 under the control of the microcomputer for food cooking. When the power is made to, as shown in FIG. 2, the movable iron core 116 is advanced while the electromagnetic force is induced to the movable iron core 116.

At this time, by selectively energizing the coil 114, an electromagnetic force is induced to the periphery of any one of the first movable core 116-1 and the second movable iron core 116-3 to advance the movable core 116. Compression distance can be easily adjusted.

Next, the spring fixing body 110 is advanced by the advancement of the movable iron core 116, the end of the movement in contact with the spring 108 by the stepped portion 106-1 as the spring 108 is advanced. The member 106 is advanced together so that the packing member 104 blocks the vapor barrier plate 102.

In this operation, the spring member 108 supported by the spring fixing body 110 pushed by the movable iron core 116 is pushed until the packing member 104 contacts the blocking plate 102. When the packing member 104 reaches the state where the packing member 104 is in close contact with the blocking plate 102, the spring 108 remains compressed to some extent. At this time, the degree of compression of the spring 108 is set differently depending on which of the first movable core 116-1 or the second movable core 116-3, the movement distance is different.

When the food is cooked in such a state and the high pressure is discharged inside the rice cooker (not shown), the packing member 104 is pushed back away from the blocking plate 102 as shown in FIG. ) Is reversed and the spring 108 is compressed. At this time, the movable iron core 116 maintains the advanced state, but the movable member 106 can be smoothly moved back by the guide groove 117 formed at the tip thereof.

Subsequently, when the cooking is completed while generating steam at a predetermined temperature and pressure by the control of the microcomputer, the microcomputer senses this and shows the coils 114-1, 114-2 or 114-3, 114-4 as shown in FIG. Blocking the current applied to the, thereby removing the electromagnetic force induced in the movable core 116 to maintain a freely movable state. Therefore, after the cooking is completed, the packing member 104 is separated from the steam blocking plate 102 by the high-pressure steam remaining in the rice cooker and is pushed back, thereby including the movable member 106 and the spring fixing body 110, The movable iron core 116 reverses. Therefore, the packing member 104 maintains a state spaced apart from the steam blocking plate 102 so that steam is discharged to the outside.

In the above-described embodiment, two stages, that is, the coil 114 is divided into the first coils 114-1 and 114-2 and the second coils 114-3 and 114-4, and therein, The movable core 116 including the first movable core 116-1 and the second movable core 116-3, which is isolated by the adult body 116-4, has been described in a limited manner. The vapor pressure generated in the cooking process can be adjusted more finely by providing a movable iron core made of a plurality of magnetic bodies provided with and separated by a nonmagnetic material.

According to the present invention, by controlling the forward pressure of the movable iron core of the solenoid valve finely variable, there is an effect that can be cooked food of various conditions.

Although the present invention has been described in detail only with respect to the embodiments described, it will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the technical idea of the present invention. will be.

Claims (2)

An opening is formed at one side, and a steam blocking plate is formed at an inner wall of the position facing the opening, and the steam discharge passage moves the internal steam; A packing member installed to close the opening of the steam discharge passage and directly contacting the steam blocking plate by a physical force, and opening and closing the steam discharge passage; A moving member fixed to the packing member and wound on a spring; A spring fixing body fastened to the outside of the movable member to elastically support the spring; And It characterized in that it comprises a solenoid valve to adjust the degree of pressurization of the spring fixing body having a movable core consisting of a plurality of divided coils and a combination of a plurality of magnetic material installed in a position corresponding to the coil Steam discharge device for electric pressure cooker characterized in that. The steam discharge device of an electric pressure cooker of claim 1, further comprising a nonmagnetic material between the plurality of movable iron cores.