KR101609190B1 - Steam condensing apparatus of electric pressure cooker - Google Patents

Abstract

The present invention provides a steam condensing apparatus for an electric pressure cooker, which can minimize the noise generated by the escaping steam and prevent the backflow of steam by using a solenoid valve. The steam condensing apparatus of the present invention is configured to comprise: a steam cap having a steam passage formed inside, wherein the steam escaped from a steam escape valve installed on a lid of an electric pressure cooker and a solenoid valve flows inside the steam passage while being sealed from the outside; and a coolant tank which condenses the steam conveyed through the steam passage by using a coolant. The steam passage comprises: a first steam passage in which the steam escaped from the steam escape valve flows; and a second steam passage which is spaced apart from the first steam passage and in which the steam escaped from the solenoid valve flows.

Description

[0001] The present invention relates to a steam condensing apparatus of an electric pressure cooker,

The present invention relates to a steam condenser for an electric pressure cooker, and more particularly, to a steam condenser for an electric pressure cooker, more particularly, to a steam condenser for condensing steam generated in an electric pressure cooker in a cooling water tank, thereby minimizing noise generated during steam discharge, To a steam condenser of an electric pressure cooker capable of preventing a safety accident of a consumer.

The electric pressure cooker is a device that cooks food by making the inside of the inner pot heated to a high temperature and high pressure by containing the food to be cooked in the inner pot.

A general electric pressure cooker is composed of an inner pot that houses foods to be cooked, a main body that houses the inner pot, a main lid that covers the main body, and an inner lid that is coupled to the bottom of the main lid to cover the inner pot.

Also, as the cooking progresses, the inside of the inner pot becomes a high temperature and high pressure state due to the steam. Therefore, a steam discharging device for discharging the steam to the outside is provided for controlling the pressure inside the inner pot.

The steam discharging device includes a solenoid valve operated according to an electrical signal to discharge steam in the inner pot, and a weight attached to the end of the steam discharging valve to open and close the steam discharging valve.

The weight of the inner pot is maintained at a constant pressure while the weight of the inner pot is being cooked while the solenoid valve discharges residual pressure inside the inner pot during or after cooking.

In the conventional electric pressure cooker, when the steam of high temperature and high pressure is discharged from the solenoid valve and the weight, the user may be injured due to carelessness, and the steam is directly discharged into the atmosphere to generate noise, May come in contact with wallpaper and kitchen utensils, resulting in discoloration and mold.

In order to solve such a problem, Korean Utility Model No. 443109 discloses a technique for conveying steam discharged through a solenoid valve (solenoid valve) of an electric pressure cooker to a receiving cup containing a cooling water through a steam feeding pipe to condense it .

However, in this conventional technique, the steam discharged from the steam outlet (electromagnetic valve) is directly introduced into the steam pipe having a narrow cross-sectional area, so that a large noise is generated when the steam is discharged, and only the steam discharged from the electromagnetic valve is transferred to the receiving cup, And the steam discharged through the weight is directly discharged into the atmosphere.

In addition, since the steam discharged from the solenoid valve is transferred through one steam pipe, pressure fluctuation occurs in the inside of the receiving cup or pressure fluctuation occurs when the steam is discharged from the steam outlet, so that the steam discharged from the steam outlet flows back to the solenoid valve The solenoid valve malfunctions.

The present invention has been devised to solve the above-mentioned problems, and it is an object of the present invention to minimize the noise generated when steam is discharged, prevent the steam from flowing back to the solenoid valve, And to provide a steam condenser of a pressure cooker.

According to an aspect of the present invention, there is provided an apparatus for vapor condensation of an electric pressure cooker, including: a vapor discharge valve provided in a main body lid of an electric pressure cooker; and a steam flowing from a solenoid valve A steam cap having a flow path formed therein; And a cooling water tank for condensing the steam transferred through the steam passage by using cooling water, wherein the steam passage includes a first steam passage through which the steam discharged from the steam discharge valve flows, And a second steam flow passage through which the steam discharged from the solenoid valve flows.

And a connection tube composed of a first connection tube and a second connection tube for transferring the steam transferred from the first steam passage and the second steam passage to the cooling water tank, respectively.

The steam cap includes a lower cap having a body bottom portion through which the steam discharge valve and the solenoid valve penetrate the bottom surface and a side body formed at a predetermined height along an edge of the body bottom portion, And an upper cap coupled to an upper side of the lower cap to form a steam flow path.

The inner space surrounded by the steam passage partitions protruding upward from the bottom of the body of the lower cap and contacting the bottom surface of the upper cap is the first steam passage, And a space between the side cap and the side body of the lower cap may be the second vapor passage.

The second steam passage may surround the outer side of the first steam passage.

The steam transferred from the first steam passage and the second steam passage is transferred to the cooling water tank by one connection tube and is checked to prevent the steam from flowing back to the solenoid valve through the second steam passage. It may be equipped with a valve.

The steam cap includes a lower cap having a body bottom portion through which the steam discharge valve and the solenoid valve penetrate the bottom surface and a side body formed at a predetermined height along an edge of the body bottom portion, And an upper cap coupled to an upper side of the lower cap so that the first and second vapor flow paths are formed; And a third steam passage connected to the connection tube by combining the first steam passage and the second steam passage may be formed inside the steam cap.

A first steam flow passage protruding upward from the bottom of the body of the lower cap and isolating the first steam passage from the second steam passage, and a second steam passage defined between the first steam passage and the third steam passage, And a second steam passage barrier wall for isolating the third steam passage.

The second steam flow passage may be formed with a communication hole communicating the second steam flow passage with the third steam flow passage. The check valve may be formed in the second steam flow passage when the pressure of the third steam flow passage is larger than the pressure of the second steam flow passage. It could be to close the hole.

The steam cap includes a lower cap having a body bottom portion through which the steam discharge valve and the solenoid valve penetrate the bottom surface and a side body formed at a predetermined height along an edge of the body bottom portion, And an upper cap coupled to an upper side of the lower cap so that the first and second vapor flow paths are formed; A first tube connection part and a second tube connection part protruding outwardly from the side body of the lower cap and having one side connected to the first steam flow path and the second steam flow path respectively and a second tube connection part between the first tube connection part and the second tube connection part, A third tube connection portion is formed to connect the first tube connection portion and the second tube connection portion; The check valve may be provided to block the steam of the second tube connection portion from flowing toward the second steam passage.

A blocking wall is formed in the second tube connection portion to block the inner space. A blocking wall communication hole is formed in the blocking wall for communicating the second tube connection internal space and the second steam passage, May be configured to open or close the blocking wall communication hole.

In the electric pressure cooker of the present invention According to the steam condensing apparatus, since the steam discharged from the inner pot flows through the steam passage inside the steam cap sealed to the outside and is condensed in the cooling water tank, noise generation can be minimized and the user can be prevented from direct contact with the steam Safety accidents can be prevented.

In the steam cap, a steam flow path is formed so that the steam discharged from the steam discharge valve and the solenoid valve can flow independently of each other. Therefore, the pressure fluctuation inside the steam cap when the steam is discharged through the steam discharge valve is transmitted to the solenoid valve It is possible to prevent the malfunction of the solenoid valve.

Also, since a check valve is provided between each steam passage in the steam cap, the steam and the cooling water are prevented from flowing back to the solenoid valve side, and the steam cap and the cooling water tank are connected with only one connection tube. .

Also, the steam cap is composed of a top cap and a bottom cap formed with threads, so that separation and coupling work of the top cap and the bottom cap can be facilitated by rotation.

Further, the steam cap is seated in the steam cap mounting groove formed in the main body cover, and the guide protrusion is inserted into the steam cap mounting guide, thereby preventing the steam cap from flowing.

1 is a perspective view showing an electric pressure cooker equipped with a vapor condensing apparatus according to a first embodiment of the present invention;
Fig. 2 is an exploded perspective view showing the structure of the steam cap and the main body lid shown in Fig.
Fig. 3 is a cross-sectional view of the steam cap and the main body lid shown in Fig. 1
FIG. 4 is a perspective view of the steam cap shown in FIG. 1, in which the upper and lower caps are separated;
5 is a view showing a process in which steam is discharged from the electric pressure cooker shown in FIG. 1 and condensed in a cooling water tank
FIG. 6 is a view showing a path through which the steam discharged from the steam discharge valve and the solenoid valve flows in the steam cap in the electric pressure cooker shown in FIG. 1
7 is a perspective view showing an electric pressure cooker provided with a vapor condensing apparatus according to a second embodiment of the present invention;
8 is a cross-sectional view of the state where the steam cap and the main body lid shown in Fig. 7 are engaged
FIG. 9 is a perspective view of the steam cap shown in FIG. 7, in which the upper and lower caps are separated;
Fig. 10 is a view showing a path through which the steam discharged from the steam discharge valve of the electric pressure cooker shown in Fig. 7 flows inside the steam cap and the connection tube
FIG. 11 is a view showing a path through which the steam discharged from the solenoid valve of the electric pressure cooker shown in FIG. 7 flows in the steam cap and the connecting tube
12 is a perspective view showing an electric pressure cooker equipped with a vapor condensing apparatus according to a third embodiment of the present invention;
13 is a cross-sectional view of the state where the steam cap and the body cover shown in Fig. 12 are engaged
FIG. 14 is a perspective view of the steam cap shown in FIG. 12, in which the upper and lower caps are separated;
FIG. 15 is a view showing a path through which the steam discharged from the steam discharge valve of the electric pressure cooker shown in FIG. 12 flows in the steam cap and the connecting tube
FIG. 16 is a view showing a path through which the steam discharged from the solenoid valve of the electric pressure cooker shown in FIG. 12 flows in the steam cap and the connecting tube

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

≪ Embodiment 1 >

1 is a perspective view showing an electric pressure cooker equipped with a steam condensing device according to a first embodiment of the present invention.

The steam condensing apparatus 1-1 according to the first embodiment of the present invention includes a steam discharge valve (not shown) provided in the main body lid 100 for discharging the steam inside the inner pot provided in the main body 10 of the electric pressure cooker The steam cap 200-1 having a steam flow path formed therein to allow the steam discharged from the solenoid valve 130 (FIG. 2) and the steam cap 200-1 to flow in a sealed state with respect to the outside, And a cooling water tank 400-1 for condensing the steam transferred through the connection tube 300-1 by using cooling water.

The connection tube 300-1 is connected to a first connection (not shown) for moving the steam discharged through the weight 110 (FIG. 2) provided at the upper end of the steam discharge valve 120 to the cooling water tank 400-1 A tube 300-1a and a second connection tube 300-1b for moving the steam discharged through the solenoid valve 130 to the cooling water tank 400-1.

A cooling water tank support 500 for accommodating the cooling water in the cooling water tank 400-1 when the steam is condensed by a predetermined amount or more and overflowing the cooling water tank 400-1 is provided at a lower portion of the cooling water tank 400-1, A body coupling groove 511 is formed in a connecting plate 510 extending from one side of the main body 10 in the direction of the main body 10 and a main body supporting portion 20 formed on the lower side of the main body 10 is inserted into the main body coupling groove 511 So that the main body 10 and the cooling water tank 400-1 are integrally connected.

FIG. 2 is an exploded perspective view showing the structure of the steam cap and the main body cap shown in FIG. 1, FIG. 3 is a sectional view of the steam cap and main body cover shown in FIG. And the lower cap is separated. Hereinafter, the structure of the main body lid 100 and the steam cap 200-1 coupled thereto will be described with reference to FIGS. 2 to 4. FIG.

2 and 3, the main body lid 100 includes an upper lid 100a to which the steam discharge valve 120 and the solenoid valve 130 are coupled so as to discharge steam in the inner pot, And a lower lid 100b coupled to a lower portion of the upper lid 100a.

The steam discharging valve 120 maintains the inner pressure of the inner pot at a constant pressure during the cooking by opening and closing the end of the steam discharging valve 120 according to the pressure of the steam, The solenoid valve 130 discharges residual pressure inside the inner pot by an electrical signal after completion of cooking.

The upper surface of the upper lid 100a is formed with a steam cap seating groove 101-1 which is recessed to seat the steam cap 200-1. A steam cap seating guide 103-1 is formed in the upper and lower slots so as to insert the guide protrusion 219-1 protruding from the outer surface of the lower cap 210-1 of the steam cap 200, When the steam cap 200-1 is inserted into the slot of the steam cap seating guide 103-1 and the steam cap 200-1 is seated in the steam cap seating groove 101-1, Flow is prevented.

The steam cap seating guide 103-1 and the guide protrusion 219-1 are formed at positions corresponding to each other and the steam cap seating guide 103-1 is fixed to one side of the steam cap seating groove 101-1 But it is not limited to the number, but may be applied if there is more than one.

A first steam discharge valve insertion hole 104-1 into which the steam discharge valve 120 is inserted and a second steam discharge valve insertion hole 104-1 through which the solenoid valve 130 is inserted into the body of the upper lid 100 in the steam- Is inserted through the first solenoid valve insertion hole 105-1.

The installation direction of the tube connection part 214-1 and the connection tube 300-1 of the steam cap 200-1 is connected to the cooling water tank 400-1 at one side of the steam- A tube guide portion 102-1 extending from the steam cap seating groove 101-1 having a concaved shape is formed so as to guide the steam tube 200-1 and the connecting tube 300-1 And the connection tube 300-1 is prevented from flowing when the tube connection part 214-1 is seated in the tube guide part 102-1.

The steam cap 200-1 includes a lower cap 210-1 through which the steam discharge valve 120 and the solenoid valve 130 pass through the bottom surface and a space between the lower cap 210-1 and the lower cap 210-1. And an upper cap 220-1 coupled to the upper side of the lower cap 210-1 so as to be hermetically sealed against the outside.

The lower cap 210-1 includes a body bottom 211-1 that is seated in the steam cap seat groove 101-1 and an upper body 211-1 that is upwardly spaced along the periphery of the body bottom 211-1. A side body 212-1 which is formed in a cylindrical shape with a height of about 1 mm or less and a cylindrical body 212-1 protruding upwards from the body bottom 211-1 in the inside of the side body 212-1, A steam passage partition wall 213-1 for forming an isolated steam passage between the first and second connection tubes 300-1 and 300-2 protruding outward from the side body 212-1, A tube connecting portion 214-1 including a first tube connecting portion 214-1a and a second tube connecting portion 214-1b respectively connected to the first tube connecting portion 214-1a and the first tube connecting portion 214-1a, And 213-1.

The body bottom 211-1 is formed with a second vapor discharge valve insertion hole 211 formed at a position corresponding to the first vapor discharge valve insertion hole 104-1 and into which the vapor discharge valve 120 is inserted And a second solenoid valve insertion hole 211-1b formed at a position corresponding to the first solenoid valve insertion hole 105-1 and into which the solenoid valve 130 is inserted.

A thread 218-1 is formed on the outer surface of the side body 212-1 so as to engage with a thread 228-1 formed along the inner side surface of the side body 222-1 of the upper cap 220-1 And when the upper cap 220-1 is rotated, coupling with and separation from the lower cap 210-1 is facilitated.

Also, when the inside of the steam cap 200-1 is to be cleaned after the steam is discharged, the entire steam cap 200-1 is detached from the steam cap seating groove 101-1 and then the upper cap 220-1 is rotated Removal from the lower cap 210-1 facilitates cleaning of the steam cap 200-1.

The first tube connection part 214-1a is formed in the shape of a pipe so as to connect the first connection tube 300-1a and the side body 212-1 so that the first tube connection part 214-1a passes through the side body 212-1, And the second tube connection part 214-1b is connected to the second connection tube 300-1b and the side body 212- 1 and is connected to a space between the side body 212-1 and the steam flow barrier rib 213-1 through the side body 212-1.

The first tube connection part 214-1a and the second tube connection part 214-1b protrude from the outer circumferential surfaces of the tube connection part protrusions 214-1c and 214-1d. (214-1c, 214-1d) are inclined such that the tip end of the serrated shape is directed toward the inside of the lower cap 210-1. When the first and second connection tubes 300-1a, 300-1b are press-fitted It is easy to press-fit, and it is possible to prevent detachment after press-fitting.

The steam passage partitions 213-1 are protruded upward from the body bottom 211-1 so as to concentrically form the side body 212-1 around the steam discharge valve 120 and the weight 110. [ The inner space of the steam passage partition wall 213-1 surrounded by the steam passage partition 213-1 and the upper cap 220-1 is connected to the inner space of the steam passage partition 213-1 by the first And the outer space of the steam passage barrier 213-1 surrounded by the side body 212-1 and the upper cap 220-1 serves as a steam passage 201-1, The second steam passage 202-1 through which the steam discharged from the solenoid valve 130 coupled to the outside of the steam passage barrier 213-1 flows.

Thus, the first steam passage 201-1 and the second steam passage 202-1 are concentric with each other, and the first steam passage 201-1 surrounded by the second steam passage 202-1 is the 2 is connected to the first tube connection 214-1a by the connection passage 215-1 isolated from the second tube connection part 214-1 and the second steam connection part 214-1a is connected to the second tube connection part 214-1 -1b), so that the two steam passages are isolated from each other by a simple structure.

An annular inner packing insertion groove 224-1 corresponding to the vapor passage barrier 213-1 and an inner packing insertion groove 224-1 are formed on the bottom surface of the upper cap 220-1, An annular outer packing insertion groove 226-1 corresponding to the side body 212-1 is formed on the outer periphery of the inner packing insertion groove 224-1 and the outer packing insertion groove 226-1, An annular first steam passage packing 241-1 and a second steam passage packing 242-1 are inserted into the groove 226-1.

Therefore, when the lower cap 210-1 and the upper cap 220-1 are coupled to each other, the upper end of the vapor passage barrier 213-1 contacts the first vapor passage packing 241-1, The upper ends of the first steam passages 212-1 and 212-1 are in contact with the second steam passage packing 242-1 so that the first steam passages 201-1 and the second steam passages 202-1 are separated from each other, And the steam discharged from the steam discharge valve 120 flows through the first steam passage 201-1 and the connection passages 215-1 and 215-2, since the second steam passage 202-1 is isolated from the outside, Through the first tube connection part 214-1a and the first connection tube 300-1a to the cooling water tank 400-1 and the steam discharged from the solenoid valve 130 flows into the second steam flow path 202-1, the second tube connection part 214-1b, and the second connection tube 300-1b to the cooling water tank 400-1.

Since the steam discharged from the steam discharge valve 120 and the steam discharged from the solenoid valve 130 flow into the cooling water tank 400-1 through the independent steam flow path, The cooling water in the cooling water tank 400-1 or the steam discharged from the steam discharge valve 120 flows back to the solenoid valve 130 side when the steam is discharged from the steam discharge valve 120, A problem that a malfunction occurs is prevented.

Upper cap protrusions 227-1 protruding upward and downward by the height of the side body 222-1 are formed on the side body 222-1 of the upper cap 220-1 at a plurality of intervals And it is easy to rotate the upper cap 220-1 by hand when the upper cap 220-1 and the lower cap 210-1 are engaged with and separated from each other.

Four packings are provided on the body bottom 211-1 and the upper lid 100a of the lower cap 210-1 through which the steam discharge valve 120 and the solenoid valve 130 pass. That is, between the first vapor discharge valve insertion hole 104-1 and the vapor discharge valve 120 of the upper lid 100a, between the second vapor discharge valve insertion hole 211-1a of the lower cap 210-1 The steam discharge valve lower packing 122-1 and the steam discharge valve upper packing 121-1 are coupled between the steam discharge valve 120 and the steam discharge valve 120, respectively.

The second solenoid valve insertion hole 211-1b of the lower cap 210-1 and the second solenoid valve insertion hole 211-1b of the solenoid valve 130-1 between the first solenoid valve insertion hole 105-1 and the solenoid valve 130 of the upper lid 100a, The solenoid valve lower packing 132-1 and the solenoid valve upper packing 131-1 are coupled to each other.

Therefore, the steam inside the first steam passage 201-1 and the steam inside the second steam passage 202-1 is discharged by the upper packing 121-1 and the upper packing 131-1 of the solenoid valve, 2 is prevented from leaking to the outside of the steam cap 200-1 through the second vapor discharge valve insertion hole 211-1a and the second solenoid valve insertion hole 211-1b and the vapor discharge valve lower packing 122-1 And the solenoid valve lower packing 132-1 through the first vapor discharge valve insertion hole 104-1 and the first solenoid valve insertion hole 105-1, Is prevented.

In the above description, the steam discharge valve upper packing 121-1 and the steam discharge valve lower packing 122-1, the solenoid valve upper packing 131-1, and the solenoid valve lower packing 132-2 are separated from each other The lower end of the vapor discharge valve upper packing 121-1 and the lower end of the vapor discharge valve lower packing 122-1, such as the vapor discharge valve packing 123-2 and the solenoid valve packing 133-2 of the second embodiment described later, And the lower end of the solenoid valve upper packing 131-1 and the upper end of the solenoid valve lower packing 132-1 may be integrally connected to each other.

FIG. 5 is a view showing a process in which steam is discharged from the electric pressure cooker shown in FIG. 1 and condensed in a cooling water tank. FIG. 6 is a view showing a state in which the steam discharged from the steam discharge valve and the solenoid valve in the electric pressure cooker shown in FIG. As shown in FIG.

As the cooking progresses, the steam generated in the inner pot of the electric pressure cooker and discharged through the steam discharge valve 120 and the weight 110 passes through the first steam passage 201-1, the connecting passage 215-1, The steam discharged through the solenoid valve 130 is discharged through the first tube connecting portion 214-1a and the first connecting tube 300-1a to the vapor discharging member 450 of the cooling water tank 400-1, (Not shown) of the cooling water tank 400-1 through the first steam passage 202-1, the second tube connection 214-1b, and the second connection tube 300-1b.

Since the steam discharged from the inner pot is discharged through the first steam passage 201-1 and the second steam passage 202-1 which are hermetically sealed to the outside, noise can be minimized, It is prevented that direct contact is made, and safety accidents can be prevented.

The steam in the steam discharging member 450 is discharged to the cooling water through the steam outlet 450a, thereby condensing the cooling water. When the above process is repeated, the water surface of the cooling water rises. The steam discharging member 450 is coupled to a buoyancy member 470 acting as a buoyant force against the water surface of the cooling water so that even if the water surface of the cooling water rises, The length of the steam discharging member 450 is varied so as to move upward together with the cooling water surface so that the steam is always discharged at a constant position with respect to the water surface of the cooling water.

The steam in the inner space 410a of the tank body 410 not condensed in the cooling water flows into the inner space 440a of the tank cover 440 composed of the tank outer cover 420 and the tank inner cover 430, And is discharged to the outside through a vent hole (422) formed in the tank outer cover (420).

Reference numeral 432 denotes a coupling tube coupling portion to which the coupling tube 300 is coupled, 432c denotes an inner space of the coupling tube coupling portion 432, 310a denotes a tube coupling portion coupled to an end portion of the coupling tube 300, And a vapor discharge member holder for coupling the discharge member 450 to the tank inner cover 430, respectively.

≪ Embodiment 2 >

FIG. 7 is a perspective view showing an electric pressure cooker having a steam condensing device according to a second embodiment of the present invention, FIG. 8 is a sectional view of the steam cap and the main body lid shown in FIG. And the upper cap and the lower cap of the steam cap are separated from each other.

The vapor condensing apparatus 1-2 according to the second embodiment includes a first vapor passage 201-2 in which the vapor discharged from the vapor discharge valve 120 and the solenoid valve 130 flows and a second vapor passage 202-2 is isolated from the inside of the steam cap 200-2, but the first steam passage 201-2 and the second steam passage 202-2 are combined with each other, 3 steam passage 203-2 is formed in the steam cap 200-2 and a check valve 250 for preventing the steam of the third steam passage 203-2 from flowing back to the solenoid valve 130 2 in that the steam cap 200-2 and the cooling water tank 400-2 are connected by a single connecting tube 300-2. have.

The first steam passage 201-2, the second steam passage 202-2 and the third steam passage 203-2 are connected to the lower cap 210-2 of the steam cap 200-2, (220-2).

The lower cap 210-2 includes a side body 212-2 formed at a predetermined height upward along the periphery of the body bottom 211-2, A first steam passage partition 213-2 protruding upward from the bottom portion 211-2 to isolate the first steam passage 201-2 from the second steam passage 202-2, 2, one side of which is in contact with the first steam passage 201-2 and the second steam passage 202-2 and the other side of which is in contact with the first steam passage 201-2 and the second steam passage 202-2, A second steam passage partition wall 217-2 in contact with the third steam passage 203-2 and a tube connection portion 217-2 protruding outward from the side body 212-2 and connected to the connection tube 300-2, (214-2).

A second steam discharge valve insertion hole 211-2a through which the steam discharge valve 120 is inserted and a second solenoid valve insertion hole 211 through which the solenoid valve 130 is inserted are formed in the body bottom 211-2, -2b are formed.

The cross-sectional shape of the side body 212-2 is formed in a straight line inclined so that two opposing sides are opposed to each other, and the other opposite sides are formed in a round shape, and are generally trapezoidal in shape as a whole.

The first steam passage barrier 213-2 has one end abutting against the inner side of the side body 212-2 and the other end abutting against one side of the second steam passage barrier 217-2. The space formed at one side of the first steam passage barrier 213-2 serves as a first steam passage 201-2 through which the steam discharged from the steam discharge valve 120 flows, The space formed is the second steam passage 202-2 through which the steam discharged from the solenoid valve 130 flows.

The second steam passage barrier 217-2 is provided between the first steam passage 201-2 and the third steam passage 203-2 and between the second steam passage 202-2 and the third steam passage 203-2 A communication hole 217-2a (first communication hole) for communicating the second steam passage 202-2 and the third steam passage 203-2 is formed at one side thereof, And a communication hole 217-2c (second communication hole) for communicating the first steam passage 201-2 and the third steam passage 203-2 is formed on the other side.

The third steam passage 203-2 has one side connected to the first steam passage 201-2 and the second steam passage 201-2 through the second communication hole 217-2c and the first communication hole 217-2a, And the other side communicates with the connection tube 300-2 through the tube connection 214-2 so that the steam discharged from the steam discharge valve 120 and the steam discharged from the solenoid valve 130 And the resulting steam flows through the connecting tube 300-2 to the cooling water tank 400-2.

The first check valve 250-2 is provided to open and close the first communication hole 217-2a of the second steam passage barrier wall 217-2 according to the pressure of the third steam passage 203-2 do.

The first check valve 250-2 includes a valve portion 250-2a made of an elastic material such as rubber to open or close the first communication hole 217-2a, A body 250-2b protruding in a cylindrical shape from one side of the body 250-2a and a body 250-2b formed at a front end of the body 250-2b so as to be easily inserted into the body 250-2, And a wedge-shaped head portion 250-2c having a size larger than that of the wedge-shaped head portion 250-2c. The body portion 250-2b and the head portion 250-2c may be formed in pairs.

A contact portion 250-2d protruding toward the first communication hole 217-2a and contacting the second steam passage barrier wall 217-2 is formed on one side of the valve portion 250-2a , The contact portion 250-2d is formed so as to surround the first communication hole 217-2a. When the contact portion 250-2d makes contact with the second vapor passage barrier wall 217-2, The third steam passage 203-2 and the first steam passage 201-2 become isolated spaces.

The second steam passage barrier wall 217-2 is formed with a coupling hole 217-2b (first coupling hole) sized to prevent the head part 250-2c from being inserted into the second steam passage barrier wall 217-2, 250-2c is inserted into the first coupling hole 217-2b from the third steam passage 203-2 toward the second steam passage 202-2, the valve portion 250-2a is connected to the second steam passage 202-2, The pressure of the second vapor passage 202-2 is reduced to the third pressure in the third communication passage 217-2a by closing the third vapor passage 203-2 side of the first communication hole 217-2a, The valve portion 250-2a is pushed in the direction of the third vapor passage 203-2 to open the first communication hole 217-2a, When the pressure of the third vapor passage 203-2 is larger than the pressure of the second vapor passage 202-2, the first communication hole 217-2a is kept closed so that the third vapor passage 203 -2) flows back to the solenoid valve 130 through the first communication hole 217-2a . The pressure fluctuation of the first steam passage 201-2 and the third steam passage 203-2 communicating therewith during the discharge of the steam through the steam discharge valve 120 is transmitted through the second steam passage 202-2 to the solenoid Malfunction of the solenoid valve 130 can be prevented by blocking the influence of the valve 130. [

A communication hole 217-2c (second communication hole) for communicating the first steam passage 201-2 and the third steam passage 203-2 is provided on the other side of the second steam passage barrier wall 217-2 And a check valve 260-2 (second check valve) for opening and closing the second communication hole 217-2c is provided.

The second check valve 260-2 has the same shape as the first check valve 250-2 and includes a valve portion 260-2a, a body portion 260-2b and a head portion 260-2c And the second steam passage barrier wall 217-2 is formed with a coupling hole 217-2d (second coupling hole) sized to prevent the head portion 260-2c from being inserted and removed.

When the head portion 260-2c is inserted into the second coupling hole 217-2d from the third steam passage 203-2 toward the first steam passage 201-2, the valve portion 260-2a The first steam passage 201-2 is brought into close contact with the second steam passage barrier 217-2 to close the side of the third steam passage 203-2 of the second communication hole 217-2c. Is larger than the pressure of the third vapor passage 203-2, the valve portion 260-2a is pushed toward the third vapor passage 203-2 to open the second communication hole 217-2c When the pressure of the third vapor passage 203-2 is larger than the pressure of the first vapor passage 201-2, the second communication hole 217-2c is kept closed, The steam of the steam passage 203-2 is prevented from flowing into the first steam passage 201-2 through the second communication hole 217-2c and the steam is accumulated in the first steam passage 201-2 Can be prevented.

In the present embodiment, the second check valve 260-2 is provided. However, the amount of the steam flowing into the first steam passage 201-2 from the third steam passage 203-2 is small The second check valve 260-2 may not be provided.

The side body 212-2 of the lower cap 210-2 and the first vapor passage barrier 213-2 and the second vapor barrier rib 217-2 are formed on the bottom surface of the upper cap 220-2. 224-2b, and 224-2c having a shape corresponding to the upper end of the third steam channel packing insertion groove 224-2a, 224-2b, 224-24 -2c, the third steam passage packing 243-2 having a shape corresponding thereto is inserted.

The third steam passage packing 243-2 includes a first steam passage barrier wall portion 243-2a having a shape corresponding to the upper end of the first steam passage barrier 213-2, A portion 243-2b of the second vapor passage barrier wall having a shape corresponding to the upper end of the partition wall 217-2 and a side body portion 243-2c having a shape corresponding to the upper end of the side body 212-2, Are integrally formed.

Therefore, when the lower and upper caps 210-2 and 220-2 are coupled to each other, the third vapor passage packing 243-2 contacts the first and second vapor passages 201-2 and 201-2, The second steam passage 202-2 and the third steam passage 203-2 are isolated from each other and isolated from the outside.

Since the steam discharged from the steam discharge valve 120 and the steam discharged from the solenoid valve 130 flow into the cooling water tank 400 through the single connection tube 300-2 via the independent steam passage, The number of connection tubes 300-2 and the number of components connected to the connection tubes 300-2 are reduced compared to the first embodiment, thereby simplifying the configuration.

In the bottom part 211-2 and the upper lid 100a of the lower cap 210-2 through which the steam discharge valve 120 and the solenoid valve 130 pass, However, as shown in FIG. 8, two packings may be provided. That is, the steam discharge valve packing 123-2 in which the steam discharge valve upper packing 123-2a and the steam discharge valve lower packing 123-2b are integrally connected, the solenoid valve upper packing 133-2a and the solenoid valve And a solenoid valve packing 133-2 in which the lower packing 133-2b is integrally connected.

FIG. 10 is a view showing a path through which the steam discharged from the steam discharge valve of the electric pressure cooker shown in FIG. 7 flows in the steam cap and the connecting tube, FIG. 11 is a view showing a steam discharged from the solenoid valve of the electric pressure cooker shown in FIG. Is a view showing the flow path inside the steam cap and the connection tube.

As the cooking progresses, the steam generated in the inner pot of the electric pressure cooker and discharged through the steam discharging valve 120 and the weight 110 flows into the first steam passage 201-2 and the second steam passage 201-2 as shown in FIG. 10 (a) And the steam of the third steam passage 203-2 flows through the tube connecting portion 214-2 and the connecting tube 300-2 so as to flow into the third steam passage 203-2 through the second communication hole 217-2c, And is discharged to the vapor discharge member 450 of the cooling water tank 400-2.

In this case, since the pressure of the first vapor passage 201-2 is greater than the pressure of the third vapor passage 203-2, the second check valve 260-2 is elastically deformed as shown in Fig. 10 (c) The second communication hole 217-2c is opened and the pressure of the third vapor passage 203-2 is greater than the pressure of the second vapor passage 202-2. Therefore, as shown in Fig. 10 (b) 1 check valve 250-2 maintains the closed state of the first communication hole 217-2a so that the vapor of the third vapor passage 203-2 flows through the first communication hole 217-2a into the second vapor It is possible to prevent backflow into the solenoid valve 130 after flowing into the flow path 202-2.

The steam discharged through the solenoid valve 130 is supplied to the third steam passage 203-2 through the second steam passage 202-2 and the first communication hole 217-2a as shown in FIG. And the vapor of the third vapor passage 203-2 flows to the vapor discharge member 450 of the cooling water tank 400-2 via the tube connection portion 214-2 and the connection tube 300-2 .

In this case, since the pressure of the second vapor passage 202-2 is greater than the pressure of the third vapor passage 203-2, the first check valve 250-2 is elastically deformed as shown in Fig. 11 (b) The first communication hole 217-2a is opened and the pressure of the third vapor passage 203-2 is greater than the pressure of the first vapor passage 201-2. Therefore, as shown in Fig. 11C, 2 check valve 260-2 maintains the closed state of the second communication hole 217-2c so that the vapor of the third vapor passage 203-2 flows through the second communication hole 217-2c into the first vapor So that it can be prevented that it flows into the flow path 201-2.

Reference numeral 230-2 denotes an outer cover for covering the upper side of the upper cap 220-2. Reference numerals 240-2a and 240-2b denote outer sides for fixing the outer cover 230-2 to the upper surface of the main body lid 100 Cover clamp.

Although the outer cover 230-2 and the outer cover clamps 240-2a and 240-2b are provided in the present embodiment, when the outer cover 230-2 is not provided, the upper cap 220-2, 2 may be formed with a clamp corresponding to the outer cover clamp and fixed to the upper surface of the main body lid 100.

≪ Third Embodiment >

FIG. 12 is a perspective view showing an electric pressure cooker having a steam condensing device according to a third embodiment of the present invention, FIG. 13 is a sectional view of the steam cap and the main body cover shown in FIG. And the upper cap and the lower cap of the steam cap are separated from each other.

The vapor condensing apparatus 1-3 according to the third embodiment has the same configuration as the first embodiment, The tube connecting portion 214-3 formed in the lower cap 210-3 and the cooling water tank 400-3 are connected by a single connecting tube 300-3 and the tube connecting portion 214-3 is provided with a solenoid valve (Third check valve) 270-3 for preventing the steam from flowing backward to the first check valve 130 is provided.

The tube connecting portion 214-3 includes a first tube connecting portion 214-3a protruding outwardly of the side body 212-1 and a second tube connecting portion 214-3b extending longer than the first tube connecting portion 214-3a. A second tube connection part 214-3b protruding outward from the first tube connection part 214-1 and connected to the connection tube 300-3 and a second tube connection part 214-3b extending from the first tube connection part 214-3a and the second tube connection part 214- And a third tube connecting portion 214-3c connecting between the first tube connecting portion 214a and the second tube connecting portion 214b.

The first tube connection portion 214-3a communicates with the first steam passage 201-1 through which the steam discharged from the steam discharge valve 120 flows through the connection passage 215-1, The connection portion 214-3b communicates with the second steam passage 202-1 through which the steam discharged from the solenoid valve 130 flows and the third tube connection portion 214-3c is connected to the first tube connection portion 214- The first tube connection part 214-3a and the second tube connection part 214-3b are arranged such that the steam passing through the first tube connection part 214-3a and the second tube connection part 214-3b flows into one connection tube 300-3. Communicate with the space.

A blocking wall 217-3 is formed in the second tube connecting portion 214-3b to block the inner space of the second tube connecting portion 214-3b. A blocking wall communicating hole 217-3a for communicating the second vapor passage 202-1 with the second vapor passage 202-1 is formed in the blocking wall communication hole 217-3a to prevent steam from flowing back toward the solenoid valve 130 A third check valve 270-3 is connected.

The third check valve 270-3 includes a valve portion 270-3a formed in a disk shape to open or close the blocking wall communication hole 217-3a, A body portion 270-3b protruding in a cylindrical shape from one side thereof, and a body portion 270-3b formed on the front end of the body portion 270-3b so as to be easily inserted but larger than the body portion 270-3b And a wedge-shaped head portion 270-3c.

The diameter of the blocking wall communication hole 217-3a is smaller than the diameter of the head portion 270-3c and larger than the diameter of the body portion 270-3b. When the steam is inserted into the blocking wall communication hole 217-3a from the tube connecting portion 214-3b toward the second steam flow passage 202-1, it is prevented from coming off in the opposite direction, and the body portion 270-3b is inserted A gap is formed between the outer side surface of the body portion 270-3b and the inner side surface of the blocking wall communication hole 217-3a so that the steam can flow between the gaps.

When the pressure of the second vapor passage 202-1 is greater than the pressure of the second tube connection 214-3b, the valve portion 270-3a opens the blocking wall communication hole 217-3a , And when the pressure of the second tube connection portion 214-3b is larger than the pressure of the second vapor passage 202-1, the valve portion 270-3a closes the blocking wall communication hole 217-3a The vapor of the second tube connecting portion 214-3b is prevented from flowing back to the solenoid valve 130 through the blocking wall communication hole 217-3a.

A plurality of protrusions 270-3d protruding in the direction of the valve portion 270-3a are formed along the periphery of one side edge of the head portion 270-3c, The first steam passage 201 - 3 is formed so that a gap is maintained between one side of the head portion 270 - 3 c and a facing side of the blocking wall 217 - 3 in a state of being inserted into the communication hole 217 - 1 can flow smoothly to the second tube connecting portion 214-3b through the blocking wall communication hole 217-3a.

FIG. 15 is a view showing a path through which the steam discharged from the steam discharge valve of the electric pressure cooker shown in FIG. 12 flows in the steam cap and the connecting tube, FIG. 16 is a view showing the steam discharged from the solenoid valve of the electric pressure cooker shown in FIG. Is a view showing the flow path inside the steam cap and the connection tube.

The steam generated in the inner pot of the electric pressure cooker and discharged through the steam discharge valve 120 and the weight 110 is supplied to the first steam passage 201-1, the connection passage 215-1, After passing through the first tube connection part 214-3a, the third tube connection part 214-3c and the second tube connection part 214-3b, the cooling water tank 400-3 through the connection tube 300-3, Lt; / RTI >

In this case, since the pressure of the second tube connection portion 214-3b is larger than the pressure of the second vapor passage 202-1, the valve portion 270-3a of the third check valve 270-3 is blocked by the blocking wall 217 -3 so that the vapor of the second tube connecting portion 214-3b flows into the second vapor passage 202-1 and flows back to the solenoid valve 130 by closing the blocking wall communication hole 217-3a Can be prevented.

16, the steam discharged through the solenoid valve 130 flows through the second vapor passage 202-1, the body portion 270-3b of the third check valve 270-3, The second tube connecting portion 214-3b, and then flows to the cooling water tank 400-3 through the connecting tube 300-3.

In this case, the valve portion 270-3a of the third check valve 270-3 is separated from one side of the blocking wall 217-3, and the head portion 270-3c is separated from the one side of the blocking wall 217-3 by the projection 270-3d Since a gap is formed between the outer surface of the body portion 270-3b and the inner surface of the cut-off wall communication hole 217-3a, (202-1) to the second tube connection portion (214-3b).

In the above-described second and third embodiments, the check valve 250-2, 260-2, 270-3 having different shapes is used to implement the check valve structure. However, the third check valve 270-3 may be provided in the second And the first or second check valve 250-2 or 260-2 may be applied to the third embodiment to implement the backflow prevention structure.

According to the present invention, the steam discharged from the inner pot flows through the steam passage inside the steam cap sealed to the outside and then condensed in the cooling water tank, so that the noise can be minimized, And steam passages isolated from each other are formed in the steam cap so that the steam discharged from the steam discharge valve and the solenoid valve can flow independently of each other. Therefore, steam and cooling water flow backward to the solenoid valve side Can be prevented. Also, since a check valve is provided between each steam passage in the steam cap, the steam and the cooling water are prevented from flowing back to the solenoid valve side, and the steam cap and the cooling water tank are connected with only one connection tube. .

As described above, the present invention is not limited to the above-described embodiments, and various changes and modifications may be made without departing from the scope of the present invention as defined in the appended claims. And such modifications are within the scope of the present invention.

1-1, 1-2, 1-3: steam condenser 10:
20: Main body supporting part 100: Body lid
101-1: Steam cap seat groove 102-1: Tube guide seat
103-1: Steam cap seat guide 104-1: First steam discharge valve insertion hole
105-1: first solenoid valve insertion hole 110: weight
120: Steam discharge valve 121-1: Steam discharge valve upper packing
122-1: Vapor discharge valve lower packing 123-2: Vapor discharge valve packing
130: Solenoid valve 131-1: Solenoid valve upper packing
132-1: Lower solenoid valve packing 133-2: Solenoid valve packing
200-1, 200-2, 200-3: steam cap 201-1, 201-2:
202-1, 202-2: second steam passage 203-2: third steam passage
210-1, 210-2, and 210-3: Lower caps 211-1 and 211-2:
211-1a, 211-2a: the second vapor discharge valve insertion hole
211-1b, 211-2b: the second solenoid valve insertion hole
212-1 and 212-2: side body 213-1: steam passage barrier
213-2: first steam flow barrier ribs 214-1, 214-2, and 214-3:
214-3a: first tube connecting portion 214-3b: second tube connecting portion
214-3c: third tube connecting portion 215-1: connecting passage
217-2: Second steam flow barrier wall 218-1:
219-1: Guide protrusions 220-1 and 220-2: Upper cap
222-1: side body 224-1: inner packing insertion groove
224-2a, 224-2b, 224-2c: the third steam-flow-packing insertion groove
226-1: outer packing insertion groove 227-1: upper cap projection
228-1: thread 241-1: first steam flow path packing
242-1: Second Steam Channel Packing 243-2: Third Steam Channel Packing
250-2: first check valve 260-2: second check valve
270-3: Third check valve 300-1, 300-2, 300-3: Connection tube
300-1a: first connection tube 300-1b: second connection tube
400-1, 400-2, 400-3: cooling water tank 410: tank body
420: tank outer cover 422: vent hole
430: tank inner cover 440: tank cover
450: Vapor discharge member 450a: Steam outlet
460: Hose holder 470: Buoyant material
500: Coolant tank base

Claims (20)

A steam discharge valve provided in a main body lid of the electric pressure cooker; and a steam cap having therein a steam flow path in which the steam discharged from the solenoid valve flows in a sealed state with respect to the outside;
And a cooling water tank for condensing the steam transferred through the steam passage by using cooling water,
Wherein the steam passage includes a first steam passage through which the steam discharged from the steam discharge valve flows and a second steam passage through which the steam discharged from the solenoid valve is isolated from the first steam passage, A steam condenser of an electric pressure cooker which blocks the steam discharged through the valve from affecting the solenoid valve The method according to claim 1,
And a connection tube composed of a first connection tube and a second connection tube for transferring the steam transferred from the first steam passage and the second steam passage to the cooling water tank, Device 3. The method of claim 2,
The steam cap includes a lower cap having a body bottom portion through which the steam discharge valve and the solenoid valve penetrate the bottom surface and a side body formed at a predetermined height along an edge of the body bottom portion, And an upper cap coupled to an upper side of the lower cap to form a steam flow path. The method of claim 3,
The inner space surrounded by the steam passage partitions protruding upward from the bottom of the body of the lower cap and contacting the bottom surface of the upper cap is the first steam passage, And a space between the first vapor passage and the side body of the lower cap serves as the second vapor passage. 5. The method of claim 4,
A first vapor passage packing is interposed between an upper end of the vapor passage barrier and a bottom surface of the upper cap, and a second vapor passage packing is interposed between an upper end of the side body of the lower cap and a bottom surface of the upper cap. Steam condenser of electric pressure cooker The method of claim 3,
A first tube connection part protruding outward from a side body of the lower cap and having one side connected to the first steam path and the second steam path and the other side connected to the first connection tube and the second connection tube, 2 tube connection portion is formed on the inner surface of the steam condenser of the electric pressure cooker The method of claim 3,
The second steam passage is connected to the second connection tube through the side body of the lower cap, and the second connection passage is connected to the first connection tube and the first steam passage, The steam condenser of the electric pressure cooker The method according to claim 1,
And the second steam passage surrounds an outer side of the first steam passage. The steam condenser of the electric pressure cooker The method according to claim 1,
The steam transferred from the first steam passage and the second steam passage is transferred to the cooling water tank by one connection tube and is checked to prevent the steam from flowing back to the solenoid valve through the second steam passage. The steam condenser of the electric pressure cooker 10. The method of claim 9,
The steam cap includes a lower cap having a body bottom portion through which the steam discharge valve and the solenoid valve penetrate the bottom surface and a side body formed at a predetermined height along an edge of the body bottom portion, And an upper cap coupled to an upper side of the lower cap so that the first and second vapor flow paths are formed;
And a third steam passage connected to the connection tube through the first steam passage and the second steam passage is formed in the steam condenser. 11. The method of claim 10,
A first steam flow passage protruding upward from the bottom of the body of the lower cap and isolating the first steam passage from the second steam passage, and a second steam passage defined between the first steam passage and the third steam passage, And a second steam passage partition wall for isolating the third steam passage from the first steam passage. The steam condensing apparatus of the electric pressure cooker 12. The method of claim 11,
The second steam flow passage may be formed with a communication hole communicating the second steam flow passage with the third steam flow passage. The check valve may be formed in the second steam flow passage when the pressure of the third steam flow passage is larger than the pressure of the second steam flow passage. The steam condenser of the electric pressure cooker is characterized in that the hole is closed 12. The method of claim 11,
The second steam flow passage may be formed with a communication hole communicating the first steam passage and the third steam passage, and the second steam passage may be formed in the third steam passage so as to prevent the steam of the third steam passage from flowing back to the first steam passage. Further comprising a check valve which closes the communication hole when the pressure of the first steam passage is larger than the pressure of the first steam passage. 10. The method of claim 9,
A wall for blocking a flow path from the first steam passage to the second steam passage;
The check valve includes a valve portion formed in a plate shape to open or close a hole formed in the wall, a body portion protruding from one side of the valve portion, and a head portion formed on a front end of the body portion, Part;
Wherein the wall is formed with a coupling hole having a size such that the head is inserted and prevented from dropping off. 12. The method of claim 11,
And a third steam path packing interposed between the upper end of the side body of the lower cap and the lower surface of the upper cap. The steam condenser of the electric pressure cooker according to claim 1, 16. The method of claim 15,
The third steam passage packing may include a part of the first steam passage barrier contacting the upper end of the first steam passage barrier wall and a part of the second steam passage barrier wall contacting the upper end of the second steam passage barrier wall, And a part of the side body part contacting the upper end of the side body of the cap is integrally formed. 11. The method of claim 10,
And a tube connection part protruding outwardly from a side body of the lower cap, one side of which is connected to the third steam passage and the other side of which is connected to the connection tube, 10. The method of claim 9,
The steam cap includes a lower cap having a body bottom portion through which the steam discharge valve and the solenoid valve penetrate the bottom surface and a side body formed at a predetermined height along an edge of the body bottom portion, And an upper cap coupled to an upper side of the lower cap so that the first and second vapor flow paths are formed;
A first tube connection part and a second tube connection part protruding outwardly from the side body of the lower cap and having one side connected to the first steam flow path and the second steam flow path respectively and a second tube connection part between the first tube connection part and the second tube connection part, A third tube connection portion is formed to connect the first tube connection portion and the second tube connection portion;
Wherein the check valve is provided to prevent the vapor of the second tube connection portion from flowing toward the second vapor flow path. 19. The method of claim 18,
A blocking wall is formed in the second tube connection portion to block the inner space. A blocking wall communication hole is formed in the blocking wall for communicating the second tube connection internal space and the second steam passage, The steam condenser of the electric pressure cooker opens / closes the blocking wall communication hole 10. The method of claim 9,
A wall for blocking a flow path from the first steam passage to the second steam passage;
The check valve includes a valve portion for opening or closing a hole formed in the wall, a body portion projecting from one side of the valve portion, and a head portion formed at a front end of the body portion and larger than the body portion ;
The head portion is inserted into the hole and then is prevented from coming out in the opposite direction when the head portion and the body portion are inserted into the hole, and a gap is formed between the outer surface of the body portion and the inner surface of the hole. Steam condenser of electric pressure cooker

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