KR100901168B1 - Device for exhausting steam in electric pressure rice-cooker - Google Patents

Abstract

A steam exhaust device of an electric pressure rice-cooker is provided to improve speed and stability in the steam exhaust through the steam outlet. A steam exhaust device of an electric pressure rice-cooker comprises an opening and closing unit(61) which opens and closes a steam outlet formed on an inner pot lid, an operation member(62) combined with the opening and closing member, a cover(64) combined in the inner pot lid and in which a steam exhaust passage connected to the steam outlet is formed on the bottom, an elastic member(63) pressing the operation member so that the opening and closing member closes the steam outlet and transformed in the rising of the operation member, and a stopper(65).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric pressure cooker,

[0001] The present invention relates to a steam discharging device for an electric pressure cooker for discharging steam inside an inner pot to the outside when the steam pressure in the inner pot rises by a predetermined amount or more during cooking in an electric pressure cooker.

The electric pressure cooker is a household appliance that cooks inside the inner pot by heating the inside of the pot while holding the grain to be cooked in the inner pot.

An example of the electric pressure cooker includes an inner pot accommodated in the main body, and the main body and the inner pot are provided with an outer lid and an inner lid openably and closably so as to seal the respective inner portions thereof. The inner pot lid is detachably coupled to the outer lid for easy repair work, and is provided with an inner pot packing for maintaining the sealed state.

The outer lid and the inner lid are provided with a pressure regulating device for regulating the inner pressure of the inner pot. The pressure regulating device includes an outer lid and an inner lid And a solenoid valve is provided in the steam discharge passage formed between the steam discharge passage.

The solenoid valve is equipped with an electrical operating structure and a mechanical operating structure. When the pressure inside the inner pot rises above a threshold value during the cooking process, the steam inside the inner pot is discharged. However, when the solenoid valve is electrically operated and the mechanical operating structure is defective due to a defect or an external factor, operation may become impossible. Then, the pressure inside the inner pot excessively increases beyond the working pressure, which may cause the electric pressure cooker to explode.

Accordingly, a steam discharging device is additionally provided between the outer lid and the inner lid to prevent the inner pressure of the inner pot from being excessively increased even if an abnormality occurs in the solenoid valve of the pressure regulating device. In particular, in order to compensate for the disadvantage that only a part of the inner pressure of the inner pot is discharged to the outside during operation, the inner pressure of the inner pot is completely discharged, and then the inner pressure is not returned to the original state. A non-return type steam discharging device is applied. Hereinafter, the steam discharge apparatus referred to in the present specification refers to a non-return type steam discharge apparatus.

The above-described steam discharging device is described in detail in Korean Patent Registration No. 10-0542335 and Registration Practice No. 20-0387086, which are the registrants of the present invention, respectively. The steam exhaust apparatuses disclosed in these registered patents and the registered utility model each open a passage (steam outlet) for discharging the steam when the pressure inside the inner pot reaches a threshold value or more, but the pressure in the inner pot falls below the threshold value The steam outlet is maintained in an open state, so that the steam has an improved safety.

However, since the components constituting the stopper for keeping the steam outlet in the open state are provided outside the cover, the structure of the steam discharge device of the registered patent and the registered utility model is not simplified. Further, since the steam outlet is formed in the upper portion of the cover, there is a disadvantage that the quickness and stability of the steam discharge are somewhat insufficient.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a steam boiler which can simplify the structure of a stopper for keeping a steam outlet in an open state, And a steam discharging device for the electric pressure cooker.

According to an aspect of the present invention for achieving the above object, there is provided an internal combustion engine comprising an opening and closing member provided to open and close a steam outlet formed in an inner lid, an operation member coupled to the opening and closing member toward a surface facing the outer lid of the inner lid, A cover which is coupled to the lid and has an operation space in which the operation member can be elevated in a state in which the operation member is embedded and a steam discharge passage communicating with the steam discharge port is formed at a lower end; An elastic member which is installed in an operating space of the cover to close the steam outlet and which is compressively deformed when the operating member rises; and an elastic member provided on the inner lid between the operating member and the cover, When the operating member is elevated while being opened, the lower end of the operating member is supported while being elastically deformed, It discloses a steam discharge device for pressure cookers comprising an electric stopper for holding the sphere in the open state.

Here, the elastic member may be a compression coil spring whose diameter gradually increases from a distal end portion that presses the operation member toward a direction of compressive deformation in an operating space of the cover.

The stopper may be configured to surround the outer circumferential surface of the actuating member and elastically contract and deform when the actuating member is lifted to support the lower end of the actuating member.

The stopper may be located at one side of the actuating member and may be elastically deformed and deformed during the upward movement of the actuating member to support the lower end of the actuating member.

According to the present invention configured as described above, the structure of the steam discharging device is simplified by providing the stopper for keeping the steam discharging port in the open state inside the cover, and the steam discharging passage is formed at the lower end of the cover, It is possible to achieve promptness and stability in the discharge of steam through the steam, thereby improving the safety of the electric pressure cooker.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, it should be understood that the following embodiments are provided so that those skilled in the art will be able to fully understand the present invention, and that various changes and modifications will be apparent to those skilled in the art. But is not limited thereto.

1 is a view showing an electric pressure cooker to which a steam discharging device according to the present invention is applied. 1, an electric pressure cooker to which the present invention is applied includes a rice cooker main body 10, an inner pot 20 installed in the main body 10, and a main body 10 and an inner pot 20 And an outer lid 30 and an inner lid 40 which are provided to be openable and closable. The inner lid 40 is detachably attached to the inner lid 30 and the inner lid 40 is provided with an inner lid packing 50 for maintaining a sealed state inside the inner lid 20. [ The steam discharging device (60) disclosed in the present invention is installed on the upper surface of the inner lid (40), and its specific structure will be described as follows.

FIG. 2 is a partially enlarged view of the inner lid and the steam discharging apparatus provided with the steam discharging apparatus according to the embodiment of the present invention. FIG. 3 (a) is a longitudinal sectional view of the steam discharging apparatus of FIG. Fig. 2 is a plan view showing the state of the operating member and the stopper before operation of the discharge device. Fig. FIG. 4A is a vertical sectional view showing an operation state of the steam discharging apparatus of FIG. 3A, and FIG. 4B is a plan view showing a state of the operating member and the stopper in operation of the steam discharging apparatus of FIG. 4A.

1, the steam discharging apparatus of the present invention is installed on the upper surface of the inner pot lid 40 facing the outer lid 30 as shown in FIG. 1, and the steam discharging device is provided at a corresponding portion of the inner pot lid 40 A steam outlet 41 for discharging steam generated from the inside of the inner pot 20 is formed.

The steam discharging device of the present embodiment includes an opening and closing member 61 for opening and closing the steam outlet 41, an operating member 62 coupled to the opening and closing member 61, an elastic member 63 and a cover 64 for accommodating the actuating member 62 and the elastic member 63 and having a vapor discharge passage 64a and a lower end of the actuating member 62 at the time of discharging the vapor through the vapor outlet 41, And a stopper 65 for supporting the steam discharge port 41 and keeping the steam discharge port 41 in an open state.

The opening and closing member 61 is made of an elastic material such as rubber so as to fit tightly into the steam outlet 41 formed in the inner lid 40 to keep the steam outlet 41 in a sealed state, The steam outlet 41 is separated from the steam outlet 41 and the steam outlet 41 is opened.

The operation member 62 is coupled to the opening / closing member 61 by engaging with the engaging projection 62a at the upper surface of the inner lid 40, which is the surface facing the outer lid. The operation member 62 is formed in a columnar shape with a low height. A seating groove 62b for fixing and fixing the lower end of the elastic member 63 is formed on the upper side of the operation member 62, Respectively.

The cover 64 is coupled to the upper surface of the inner lid 40 with a bolt (not shown) or the like by having the engaging hole 64b against the inner lid 40, and the inner lid 40 And an operating space 64c formed from the lower end portion facing the lower end. The operating member 62 and the elastic member 63 are accommodated in the operating space 64c and operated in the vertical direction. The operating space 64c has a structure in which the upper wall 64d is sealed. The cover 64 is provided with a steam discharge passage 64a communicating with the steam outlet 41 of the inner lid 40 so that the steam generated in the inner pot is passed through the steam outlet 41 of the inner lid 40 And is discharged to the outside through the vapor discharge passage 64a of the cover 64. [ In particular, the steam discharge passage 64a is formed at the lower end of the cover 64, which is closest to the steam outlet 41 of the inner lid 40, so that the steam can be discharged very quickly and stably.

The elastic member 63 is installed in the operating space 64c of the cover 64. The lower end of the elastic member 63 is engaged with and fixed to the fixing protrusion 62c while being seated in the seating groove 62b of the operating member 62 , And the upper end is elastically supported on the upper wall 64d of the working space 64c. The elastic member 63 provided in the working space 64c presses the operation member 62 by the elastic force so that the opening and closing member 61 coupled with the operation member 62 is moved to the steam outlet 41 can be closed. When the operating member 62 is lifted up in the working space 64c by pushing up the opening and closing member 61 by the steam pressure in the inner pot in this state, the elastic member 63 is moved to the upper end of the working space 64c The wall is compressed and deformed. The elastic member 63 is elastically compressed and deformed in the operating space so as to be stably compressively deformed in the operating space 64c, And a compression coil spring whose diameter gradually increases toward the upper wall of the working space 64c.

The stopper 65 is installed between the operation member 62 and the cover 64 on the inner pot lid 40. The stopper 65 of the present embodiment is particularly effective when the outer peripheral surface of the operation member 62 and the cover 64 Ring-shaped elastic material positioned between the inner wall of the working space 64c of the first and second working chambers 64a and 64b. 3A and 3B, the upper end of the stopper 65 is engaged with the inner wall lower end portion 64e of the cover 64 so that the stopper 65 is engaged with the inner wall lower end portion 64e of the cover 64 And is pressed between the operation member 62 and the cover 64 while covering the outer circumferential surface of the member 62. 4A and 4B, the steam supply pressure from the inner pot opens the steam discharge port 41 and the operation member 62 ascends and separates from the stopper 65 The upper end of the stopper 62 supports the lower end of the actuating member 62. As a result, Accordingly, even if the steam pressure inside the inner pot is reduced thereafter, the operating member 62 can not be lowered in the state of being caught by the stopper 65, so that the opening and closing member 61 can not be closed again , So that the steam outlet 41 of the inner lid 40 is kept open.

The operation of the steam discharging apparatus according to the present embodiment will be described with reference to FIGS. 1 to 4B.

The steam discharging device of this embodiment is provided on the steam outlet 41 of the inner lid 40. The operating member 62 is coupled to the upper side of the opening and closing member 61, And the elastic member 63 is engaged. The operating member 62 and the elastic member 63 are accommodated in the working space 64c inside the cover 64. The operating member 62 is urged by the repulsive force of the elastic member 63 Closing member 61 on the lower side of the operating member 62 closes the vapor discharge port 41. As a result, A stopper 65 in the form of a C-ring is interposed between the operation member 62 and the cover 64 on the inner lid 40 in a compressed state.

When the steam pressure inside the inner pot 20 is excessively increased to reach the threshold value by the cooking in the electric pressure cooker from the above state, the opening / closing member 61, which has closed the steam outlet 41 of the inner lid 40, The steam outlet 41 is opened by releasing the steam from the steam outlet 41 by the pressure. At this time, the opening and closing member 61 pushes up the operating member 62, and the operating member 62 rises to the upper side of the operating space 64c while compressing and deforming the elastic member 63. The stopper 65 pressed between the actuating member 62 and the cover 64 is pinched toward the lower end of the actuating member 62 and is shrunk and deformed to the outer circumferential surface of the actuating member 62, As shown in Fig. The lower end of the operating member 62 is supported by the stopper 65 so that the opening and closing member 61 and the operating member 62 and the elastic member 63 The steam outlet 41 does not return to the original state, and the steam outlet 41 is kept open. Therefore, an explosion accident of the electric pressure cooker due to an excessive pressure rise inside the inner pot (20) can be prevented in advance.

Next, a steam discharging apparatus according to another embodiment of the present invention will be described.

FIG. 5A is a vertical sectional view showing a steam discharging apparatus according to another embodiment of the present invention, and FIG. 5B is a plan view showing a state of a pre-operation operating member and a pin stopper of the vapor discharging apparatus of FIG. FIG. 6A is a vertical sectional view showing the operating state of the vapor discharging apparatus of FIG. 5A, and FIG. 6B is a plan view showing a state of the operating member and the pin stopper in operation of the vapor discharging apparatus of FIG. 6A.

The steam discharging device of this embodiment is provided with the opening and closing member 61 ', the operating member 62', the elastic member 63 ', and the like, which are installed on the steam outlet 41' provided in the inner pot lid 40 ' A stopper 65 ', and a cover 64'. The configuration of the opening / closing member 61 ', the operation member 62', the elastic member 63 'and the cover 64' is the same as that of the above embodiment, The stopper 65 'will be described.

5B, the stopper 65 'of this embodiment has a bent shape like a safety pin, and is provided with an operation member 62' and a cover 62 'in a state of being unevenly distributed on one side of the operation member 62' Is provided on the inner lid 40 'between the first and second openings 64', and the portion in contact with the operating member 62 'protrudes convexly.

The convex portion of the stopper 65 'is in contact with one side of the outer circumferential surface of the operating member 62' and the steam pressure inside the inner pot reaches the threshold value so that the opening and closing member 61 ' 'Is opened and the operation member 62' is pushed up, it is expanded toward the lower end of the operation member 62 'and expanded and deformed to the outer peripheral surface of the opening and closing member 61' to support the lower end of the operation member 62 ' . The lower end of the operating member 62 'is supported by the stopper 65' so that even if the steam pressure inside the inner pot 20 'is reduced or eliminated, the opening and closing member 61' and the operating member 62 ' The member 63 'is not returned to its original state, the vapor outlet 41' is kept open and the vapor is discharged through the vapor discharge passage 64a 'of the cover 64'.

The steam discharging apparatus of the present invention as described in the above embodiments is structured such that stoppers 65 and 65 'are installed between the operating members 62 and 62' and the covers 64 and 64 ' So that the structure is much simpler than a conventional steam discharging device provided with a stopper on the outside of the cover. Further, since the steam outlets 41 and 41 'are formed at the lower end portions of the covers 64 and 64', the steam can be exhausted more quickly and stably than the conventional steam exhaust apparatus having the steam outlets at the upper portion of the cover .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, This is possible.

1 is a view showing an electric pressure cooker to which a steam discharging device according to the present invention is applied.

2 is a partially enlarged view of an inner pot lid and a steam discharging device provided with a steam discharging device according to an embodiment of the present invention.

FIG. 3A is a longitudinal sectional view of the steam discharging apparatus of FIG. 2. FIG.

FIG. 3B is a plan view showing the state of the stopper before the operation of the vapor discharge apparatus of FIG. 3A. FIG.

FIG. 4A is a longitudinal sectional view showing an operating state of the vapor discharge apparatus of FIG. 3A. FIG.

FIG. 4B is a plan view showing the state of the operating member and the stopper in operation of the vapor discharging apparatus of FIG. 4A. FIG.

5A is a longitudinal sectional view showing a steam discharging apparatus according to another embodiment of the present invention.

5B is a plan view showing the state of the operating member and the stopper before the operation of the steam discharging device of FIG. 5A.

FIG. 6A is a vertical sectional view showing an operating state of the vapor discharge apparatus of FIG. 5A. FIG.

FIG. 6B is a plan view showing the state of the operation member and the stopper in operation of the vapor discharge apparatus of FIG. 6A. FIG.

Description of the Related Art

60: steam discharging device 61: opening / closing member

62: operating member 62a: engaging projection

62b: seating groove 62c: fixing projection

63: elastic member 64: cover

64a: steam discharge passage 64b: coupling groove

64c: operating space 65: stopper

Claims (4)

An opening / closing member provided to open / close a steam outlet formed in the inner lid; An operation member coupled to the opening and closing member toward a surface facing the outer lid of the inner lid cover; A cover coupled to the inner lid and having a working space sealed by a top wall so as to be elevated in a state where the operating member is built in and a steam discharge passage communicating with the steam discharge port is formed at a lower end thereof; An elastic member installed to be elastically supported on the upper wall of the operation space of the cover so as to close the steam outlet by pressing the operation member, the elastic member being compressively deformed when the operation member is lifted; And Wherein the cover is provided on an upper surface of the inner container so that an upper end portion is engaged with an inner wall of the cover between the operating member and the cover and is elastically deformed when the operating member is lifted while opening the vapor outlet, And a stopper supporting the lower end of the operating member to keep the steam outlet in an opened state. The method according to claim 1, Wherein the elastic member is a compression coil spring whose diameter gradually increases from a distal end portion that presses the operating member toward a direction of compressive deformation in an operating space of the cover. The method according to claim 1, Wherein the stopper is configured to surround the outer peripheral surface of the operation member and is elastically contracted and deformed to support the lower end of the operation member when the operation member is lifted up. The method according to claim 1, Wherein the stopper is unevenly distributed on one side of the actuating member and is elastically deformed and deformed when the actuating member is lifted up to support the lower end of the actuating member.

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