JP2005125091A - Steam discharger for electric pressurizing rice cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a steam discharger used for exhausting steam inside an electric pressurizing rice cooker to outside. <P>SOLUTION: This steam discharger for an electric pressurizing rice cooker has a valve assembly (10) with first and second exits (22, 24) formed separately on a passage for discharging steam in the electric pressurizing rice cooker, and first and second control valves (30, 40) respectively to open/close the first and second exits (22, 24) of the valve assembly (10). Deposit discharged from the first exit (22) is discharged through the second exit (24) by steam passing through lower side space parts (16, 18) to prevent rubbish of a cooked object and oil and fat from being deposited. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a valve of an electric pressure rice cooker, and more particularly to a steam discharge valve device used for discharging high-pressure steam generated in the electric pressure rice cooker to the outside of the rice cooker.

  Usually, an electric pressure rice cooker is a device for cooking a food to be cooked using high-temperature and high-pressure steam, and the steam generated when cooking the food to be cooked is equal to or higher than a predetermined pressure. Is a steam discharge valve device designed at this time.

  FIG. 1 is a cross-sectional view of a normal electric pressure rice cooker, and FIG. 2 is a cross-sectional view of a conventional steam discharge valve device.

  As shown in FIGS. 1 and 2, the conventional steam discharge valve device for an electric pressure rice cooker has a suction port 102 and a discharge port 104 for discharging steam generated inside the electric pressure rice cooker 1 to the outside. A valve assembly 100, an orifice 110 provided above the suction port 102 of the valve assembly 100 and exhausting steam entering through the suction port 102 in two directions, and an outlet 111 on one side of the orifice 110 are opened and closed. A first control valve 120 and a second control valve 130 for opening and closing the outlet 112 on the other side of the orifice 110 are provided.

  The orifice 110 has two outlets that separate the steam that has entered through the suction port 102 in two directions, and the pressure of the steam that has entered through the suction port 102 decreases while passing through the orifice 110.

  The suction port 102 and the discharge port 104 formed in the valve assembly 100 are positioned on a vertical line, and the first control valve 120 and the second control valve 130 are attached to both sides of the valve assembly 100.

  The first control valve 120 is a device that intermittently discharges steam generated inside in order to keep the internal pressure of the electric pressure rice cooker at a predetermined pressure during the operation of the electric pressure rice cooker 1. A first control valve housing 128 fixed to the three-dimensional body 100, a spring 126 that is supported by the first control valve housing 128 and provides elastic force, a first diaphragm 122 that opens and closes the outlet 111 on one side, and a first diaphragm 122 And a control valve shaft 124 that moves the first diaphragm 122 by the elastic force of the spring 126.

  The second control valve 130 is a device that discharges the steam in the electric pressure rice cooker to the outside so that the pressure in the electric pressure rice cooker 1 is the same as the atmospheric pressure, and is fixed to the valve assembly 100. A second control valve housing 138; a second diaphragm 132 that opens and closes the outlet 112 on the other side; a plunger 134 that is fixed to the second diaphragm 132 and moves the second diaphragm 132; and a plunger magnetized by an applied current. It is a solenoid type thing provided with the winding coil 136 which moves 134 to right and left.

The operation process of the steam discharge valve device according to the prior art will be described as follows.
When cooking rice, a control unit (not shown) of the electric pressure rice cooker controls the current flowing through the winding coil 136 to move the plunger 134 toward the orifice 110. At this time, the second diaphragm 132 fixed to the tip of the plunger 134 closes the outlet 112 on the other side of the orifice 110 and does not discharge the steam inside the electric pressure rice cooker to the outside, and the second diaphragm 132 The outlet 112 on the other side of the orifice 110 is always closed while rice cooking is not completed.

  The spring 126 of the first control valve 120 applies an elastic force to the control shaft 124 and presses the first diaphragm 122 against the outlet 111 on one side of the orifice 110, but the vapor pressure inside the electric pressure rice cooker is predetermined. When the pressure is higher than the pressure, the steam overcomes the elastic force of the spring 126 and moves the first diaphragm 122 to the left side. That is, the first diaphragm 122 is moved to the left while overcoming the elastic force of the spring 126 if the internal pressure of the electric pressure rice cooker is high, regardless of whether or not the rice cooking is completed. open.

  In addition, after rice cooking is completed, the control part (not shown) controls the electric current applied to the winding coil 136, moves the plunger 134 to the right side, and the second diaphragm 132 fixed to the plunger 134 is A predetermined amount is separated from the outlet 112 on the other side of the orifice 110.

  For this reason, the high-temperature and high-pressure steam staying inside the electric pressure rice cooker is intermittently discharged through the outlet 111 on one side of the orifice 110 and the outlet on the other side opened and closed by the second diaphragm 132. The steam continuously discharged through 112 and discharged through the orifice 110 is moved to the upper side where the discharge port 104 is formed and discharged to the outside of the electric pressure rice cooker through the discharge port 104.

  However, in the above process, when high-temperature and high-pressure steam is discharged, rice flour (rice scraps), fats, and the like are deposited in the lower part of the valve assembly 100. There is a problem in that rice flour and oil are deposited in the lower space portion 106 of the valve assembly 100 formed between the lower side of the second diaphragms 122 and 132 and the suction port 102.

  Furthermore, if rice flour or fats and oils to be cooked contained in the steam are deposited in the lower space portion 106, the first and second diaphragms 122 and 132 cannot work due to this deposit, The function of the steam discharge valve device is lost, and the electric pressure rice cooker explodes due to high-pressure steam.

  This invention is made | formed in view of the said situation, The objective is the steam discharge valve apparatus of the electric pressure rice cooker which prevents that the rice flour, fats, etc. of to-be-cooked material are deposited in the inside of a steam discharge valve apparatus. Is to provide.

  To achieve the above object, the present invention provides a valve assembly having first and second outlets separately formed on a passage through which steam of an electric pressure rice cooker is discharged, and first and second of the valve assembly. A valve mechanism for opening and closing each of the second outlets; and steam guide means for guiding the deposits discharged from the first outlets by the steam discharged from the second outlets. To do.

According to one aspect of the present invention, the steam guide means is a steam guide passage that leads from the second outlet to the first outlet.
According to one aspect of the present invention, the steam guide passage is formed to discharge the steam discharged from the second outlet after passing through the lower space portion of the first outlet.
According to one aspect of the present invention, the valve mechanism for opening and closing the second outlet is a mechanism for discharging steam after rice cooking, and the valve mechanism for opening and closing the first outlet is an internal pressure during rice cooking. Is a mechanism for intermittently discharging steam when the pressure rises above a certain pressure.

  According to one aspect of the present invention, the valve mechanism that opens and closes the first outlet is a first control valve that operates according to the pressure of steam and the elastic force of a spring, and the valve mechanism that opens and closes the second outlet includes: It is a 2nd control valve which operate | moves with the electric current applied by the winding coil.

According to one aspect of the present invention, the discharge port is formed immediately above the first outlet.
According to one aspect of the present invention, the valve assembly is formed with a separation pipe for forming first and second outlets, and the separation pipe is formed so that the upper side is closed, and the second outlet is formed. The steam exhausted through the exhaust gas is exhausted only through the steam guide passage.

The steam discharge device of the electric pressure rice cooker according to the present invention integrates the discharge passage of the steam discharged through the first and second outlets, so that rice flour, fat and the like of the food to be cooked by the pressure of the flowing steam There is an effect that can prevent the deposition.
Furthermore, the steam discharge device of the electric pressure rice cooker according to the present invention has an effect of preventing the clogging phenomenon caused by the accumulation of the cooking object and ensuring the reliability of the operation.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
3 is a cross-sectional view of the steam discharge device according to the first embodiment of the present invention, and FIG. 4 is a cross-sectional perspective view of the valve assembly in FIG.

As shown in FIGS. 3 and 4, the steam discharge device according to the present invention is a steam guide passage for discharging steam inside an electric pressure rice cooker to the outside, and includes a suction port 12 and a suction port 12. The separation pipe 20 that forms the plurality of separation passages and discharges them through the first and second outlets 22 and 24, and the steam discharged through the first and second outlets 22 and 24. And a valve assembly 10 having a discharge port 14 for guiding to the outside.
The valve assembly 10 includes a first valve mechanism that opens and closes the first outlet 22 and a second valve mechanism that opens and closes the second outlet 24.

  The valve assembly 10 has a suction port 12 formed on the lower side in the drawing and a discharge port 14 formed on the upper side. The first control valve 30 that controls the function of the first valve mechanism is the valve assembly 10 in the drawing. The second control valve 40 that is attached to the left side of the valve and controls the function of the second valve mechanism is attached to the right side of the valve assembly 10 in the drawing.

  The first control valve 30 includes a first control valve housing 32 coupled to the valve assembly 10, a spring 34 that provides a predetermined elastic force by being supported in contact with the inside of the first control valve housing 32, and an orifice. The first diaphragm 38 that opens and closes the first outlet 22 of the 20 and a shaft 36 that applies the elastic force of the spring 34 to the first diaphragm 38 are provided.

  The first diaphragm 38 is a mechanism that seals the valve assembly 10 so that the steam inside the electric pressure rice cooker does not leak, and opens and closes the first outlet 22, and the steam pressure applied to the first outlet 22 is reduced. When the pressure is higher than a predetermined pressure, the diaphragm 38 itself is elastically deformed. When the pressure is applied more than the elastic deformation amount, the vapor pressure overcomes the elastic force of the spring 34 and opens the first outlet 22.

  The shaft 36 is a mechanism for returning the diaphragm 38 elastically deformed by the pressure of steam to its original position. The shaft 36 is locked to the diaphragm 38, and the force generated by the steam is greater than the elastic force of the spring 34. If so, the shaft 36 returns the diaphragm 38 to its original position.

  The second control valve 40 is engaged with the second control valve housing 42 coupled to the valve assembly 10, a second diaphragm 48 for opening and closing the second outlet 24 of the orifice 20, and the diaphragm 48. And a winding coil 44 that moves the plunger 46 by an electromagnetic force generated by an applied current.

Similarly to the first diaphragm 38, the second diaphragm 48 seals the valve assembly 10 so that the steam does not leak, and opens and closes the second outlet 24 by moving by a predetermined amount.
The plunger 46 is locked to the diaphragm 48, and the diaphragm 48 opens and closes the second outlet 24 by the moving plunger 46.
At the same time, the plunger 46 is moved left and right by the current applied to the winding coil 44, but the control unit hits the rice and moves the plunger 46 to the left side to close the second outlet 24 and after cooking the rice. The second outlet 24 is opened by moving the plunger 46 to the right side.

  On the other hand, the valve assembly 10 is formed with a steam guide passage for guiding the steam that enters through the suction port 12 and is discharged to the outside by the discharge port 14. The lower space portions 16, 18 formed between the valve assembly 10 in which the separation pipe 20 and the suction port 12 are formed and the first and second diaphragms 38, 48 are formed. And comprising.

  The lower space portions 16 and 18 are formed between the lower side of the first and second diaphragms 38 and 48 and the neck portion 17 of the valve assembly 10 in which the suction port 12 is formed. 17 is formed so as to surround the suction port 12, but the steam discharged from the second outlet 24 moves around the neck portion 17 of the valve assembly 10 and then moves to the lower space portion 16.

In particular, the upper side of the separation tube 20 and the valve assembly 10 are formed so as to contact each other, but the feature is that the steam does not flow to the discharge port 14 via the upper side of the separation tube 20. Further, the separation pipe 20 is formed as an orifice, and the suction port 12 and the separation pipe 20 can be integrally formed according to the technical idea of the present invention. In this embodiment, the suction port 12 and the separation pipe are formed. 20 are configured separately.
In addition, as shown in FIG. 3, the discharge port 14 is formed directly above the first diaphragm 38 and prevents the vapor discharged from the second outlet 24 from immediately entering the discharge port 14.

FIG. 5 is an operation explanatory view of the above-described first embodiment, and is a cross-sectional view schematically showing the steam discharge direction during rice cooking, and FIG. 6 schematically shows the steam discharge direction after rice cooking. FIG.
Hereinafter, the operation process of the steam discharge apparatus according to the present invention will be described in detail with reference to FIGS.

  First, when the rice is cooked, the controller of the electric pressure rice cooker applies current to the winding coil 44 to close the second outlet 24, and the first control valve 30 closes the first outlet 22 by the elastic force of the spring 34. When the pressure of the steam generated during rice cooking becomes larger than the elastic force of the spring 34, the first diaphragm 38 moves to the left side and discharges the steam. Accordingly, the first control valve 30 operating in this manner intermittently discharges steam only when the steam pressure inside the electric pressure rice cooker is high, but the lower space formed below the first diaphragm 38. Since the flow of the flowing steam is not continuous in the part 16, scraps and fats and oils to be cooked are frequently accumulated.

  Next, after rice cooking, as shown in FIG. 6, the control unit turns on the winding coil 32 to open the second outlet 24, and at the same time the second outlet 24 is opened, the interior of the electric pressure rice cooker. Are discharged into the valve assembly 10 through the second outlet 24 and the first outlet 22.

  At this time, the steam discharged through the second outlet 24 travels around the lower space 18 formed on the lower side of the second diaphragm 48 and the neck portion 17 of the valve assembly 10, and the first diaphragm. After passing through the lower space 16 formed on the lower side of 38, it enters the discharge port 14. Thus, the steam that has entered the discharge port 14 through the lower space portions 16 and 18 is discharged as a high-pressure one, but the rice flour and oil deposited on the lower side of the first diaphragm 38 during cooking are also added. Discharge outside.

  In this way, the discharge port 14 formed to be biased right above the first diaphragm 38 is guided around the lower space portions 16 and 18 inside the valve assembly 10 to be discharged, The scraps and fats and oils of the food to be cooked do not accumulate, and the rice flour and fats and oils already accumulated are discharged to the outside by the pressure of the steam.

  On the other hand, FIG. 7 is a cross-sectional view of a steam discharge device according to a second embodiment of the present invention. As shown in FIG. 7, in the steam discharge device according to the second embodiment of the present invention, when the discharge port 214 is provided directly above the second diaphragm 248 and the first outlet 222 is opened, By discharging the discharged steam to the discharge port 214 through the first and second lower space portions 216, 218, rice flour, fats and the like accumulated in the first and second lower space portions 216, 218, etc. Can be discharged to the outside. In addition, since the function and operation | movement process with respect to the other part of the vapor exhaust apparatus by 2nd Embodiment are the same as that of 1st Embodiment, the description is abbreviate | omitted below.

The perspective view which shows a normal electric pressure rice cooker. Sectional drawing which shows the steam discharge apparatus of the electric pressure rice cooker by a prior art. Sectional drawing which shows the steam discharge apparatus of the electric pressure rice cooker by 1st Embodiment of this invention. FIG. 4 is a perspective view showing the valve assembly of FIG. It is operation | movement explanatory drawing by 1st Embodiment of this invention, Comprising: Sectional drawing which shows the discharge direction of the vapor | steam in rice cooking. It is operation | movement explanatory drawing by 1st Embodiment of this invention, Comprising: Sectional drawing which shows the discharge direction of the steam after rice cooking. Sectional drawing which shows the steam discharge apparatus of the electric pressure rice cooker by 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Valve assembly 12 Suction port 14 Discharge port 16, 18 Lower space part 17 Valve assembly neck part 20 Orifice 22 First outlet 24 Second outlet 30 First control valve 32 First control valve housing 34 Spring 36 Shaft 38 First diaphragm 40 Second control valve 42 Second control valve housing 44 Winding coil 46 Plunger 48 Second diaphragm

Claims (10)

A valve assembly having first and second outlets formed separately on a passage through which steam of the electric pressure cooker is discharged;
A valve mechanism for opening and closing each of the first and second outlets of the valve assembly;
Steam guide means for guiding the steam discharged from the second outlet so as to discharge the deposits discharged from the first outlet;
The steam discharge device of the electric pressure rice cooker characterized by comprising.   The steam discharge device for an electric pressure rice cooker according to claim 1, wherein the steam guide means is a steam guide passage connected from the second outlet to the first outlet.   3. The electricity according to claim 2, wherein the steam guide passage is formed so that the steam discharged from the second outlet is discharged after passing through the lower space portion of the first outlet. 4. Steam discharger for pressure rice cookers.   The valve assembly is formed with one discharge port for discharging the steam discharged from the first and second outlets, and the discharge port is formed at an upper part of the first outlet. Item 3. A steam discharge device for an electric pressure rice cooker according to Item 2.   The steam discharge device for an electric pressure rice cooker according to claim 2, wherein the valve assembly is formed so that all of the steam discharged from the second outlet is discharged through the steam guide passage. .   The valve mechanism for opening and closing the second outlet is a mechanism for discharging steam after cooking, and the valve mechanism for opening and closing the first outlet is intermittent when the internal pressure rises above a certain pressure during cooking. The steam discharging apparatus for an electric pressure rice cooker according to claim 1, wherein the steam discharging mechanism is a mechanism for discharging steam.   The valve mechanism that opens and closes the first outlet is a first control valve that operates by the pressure of steam and the elastic force of a spring, and the valve mechanism that opens and closes the second outlet operates by a current applied by a winding coil. The steam discharge device for an electric pressure rice cooker according to claim 6, wherein the steam discharge device is a second control valve.   The steam discharge device for an electric pressure rice cooker according to claim 7, wherein the discharge port formed in the valve assembly is formed to be biased from the second outlet toward the first outlet.   The steam discharge device for an electric pressure rice cooker according to claim 8, wherein the discharge port is formed right above the first outlet.   The steam guide means is a steam guide passage that leads from the second outlet to the first outlet, and the valve assembly is formed with a separation pipe that forms the first and second outlets. The electric pressure according to claim 1, wherein the steam is formed so that the side is closed and the steam discharged through the second outlet is discharged only through the steam guide passage. Steamer for rice cooker.

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