CN106377159B

CN106377159B - Electric pressure cooker

Info

Publication number: CN106377159B
Application number: CN201510450730.6A
Authority: CN
Inventors: 何国营; 陶惠钧
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2015-07-28
Filing date: 2015-07-28
Publication date: 2020-11-27
Anticipated expiration: 2035-07-28
Also published as: CN106377159A

Abstract

The invention discloses an electric pressure cooker, which comprises: the pot cover and the pot body, the pot cover can move between open position and closed position for the pot body, electric pressure cooker still includes steam buffer, steam recovery unit and pipe, steam buffer detachably installs to the pot cover and communicates with the pot body, steam buffer communicates with steam recovery unit via the pipe to the leading-in to steam recovery unit that will enter into in the steam buffer from the internal portion of pot. Thereby minimizing the discharge of steam, noise when discharging steam, and possible damage to the environment and people caused by the discharged steam.

Description

Electric pressure cooker

Technical Field

The invention relates to the field of household appliances, in particular to an electric pressure cooker.

Background

At present, the electric pressure cooker is a household stock cooking appliance. After the electric pressure cooker finishes cooking, the cooker cover can be opened only after the pressure is reduced through exhaust, so that the waiting time is prolonged. Because the pressure in the electric pressure cooker is high, the noise is high and the steam is much during the exhaust. The noise of the exhaust air in a relatively quiet environment is easily frightened. And the steam is discharged directly into the environment, such as a cabinet, and the steam easily corrodes the facilities, such as the cabinet, or causes injury to the user.

In order to prevent a large amount of steam from being discharged out of the electric pressure cooker, on the basis of a common electric pressure cooker, a bubble breaker can be used for breaking bubbles of the steam, and water in the bubble breaker flows into a water collecting box along a water passing channel, so that the direct discharge of the steam can be reduced (for example, refer to the Chinese patent application with the publication number of CN 104095528A). However, in the electric pressure cooker, the steam is still discharged from the bubble breaking device, so that the discharge of the steam cannot be avoided, and in addition, water enters the electric pressure cooker when flowing through the water passing channel, so that the electric pressure cooker is easy to cause faults.

Some electric pressure cookers also use a steam conduit to introduce steam into cooling water in a box so as to prevent the generated steam from being discharged to the periphery of the electric pressure cooker, thereby condensing the steam into the cooling water (for example, refer to chinese patent application publication No. CN 102186383B). However, the steam in the steam conduit of the electric pressure cooker described above is directly led into the box, and the flow noise of the steam in the steam conduit and the noise when the steam condenses in the box are large.

Disclosure of Invention

The present invention is directed to solving, at least in part, the above problems in the prior art.

According to an aspect of the present invention, there is disclosed an electric pressure cooker comprising: the electric pressure cooker comprises a cooker cover and a cooker body, wherein the cooker cover can move between an opening position and a closing position relative to the cooker body, the electric pressure cooker further comprises a steam buffering device, a steam recovery device and a guide pipe, the steam buffering device is detachably mounted to the cooker cover and communicated with the cooker body, and the steam buffering device is communicated with the steam recovery device through the guide pipe so as to guide steam entering the steam buffering device from the inside of the cooker body into the steam recovery device.

After the cooking of the electric pressure cooker in the market is finished, the cooker cover can be opened only after the pressure is reduced through exhausting, so that the waiting time is prolonged. In addition, the noise during exhaust is large, and the exhausted steam is likely to cause damage to the environment and people. The electric pressure cooker comprises the steam buffer device, the steam recovery device and the guide pipe, and can guide the steam into the steam recovery device through the guide pipe, so that the problem when the steam is discharged is avoided as much as possible.

Optionally, the steam buffer device comprises a steam inlet and a steam outlet, the steam inlet is communicated with the pot body, and the steam outlet is communicated with the conduit, so that the steam entering the steam buffer device from the inside of the pot body is discharged only through the conduit. Therefore, the steam in the steam buffer device is discharged to the steam collecting device only through the steam outlet, and the environment and the user cannot be injured.

Optionally, the steam buffer device includes a box body and a diaphragm layer installed in the box body, the box body is provided with a steam inlet and a steam outlet, a curved choke passage is provided inside the box body, the steam inlet and the steam outlet are communicated through the choke passage, a choke groove is provided on the diaphragm layer, and at least a part of the choke passage is formed by the choke groove. In this way, the membrane layer is easily removed from the vapor buffer device for cleaning.

Optionally, the box body includes steam box cover and steam box seat, steam box seat with steam box cover detachably connects, be provided with on the steam box seat steam inlet with steam outlet, steam inlet with the inside intercommunication of pot, steam outlet with the pipe intercommunication. Therefore, the steam buffer device is convenient to disassemble and clean.

Optionally, the membrane layer is configured as a separate component that is separable from the steam box lid and the steam box base, respectively. In this way, the membrane layer is easily removed for cleaning.

Optionally, the membrane layer is made of a flexible sound absorbing material. This minimizes noise during steam discharge.

Optionally, the flexible sound absorbing material is at least one of silicone rubber, a porous loose sponge body and a porous ceramic body. The material can obtain better effect at lower cost.

Optionally, the flow blocking groove is provided on a surface of the membrane layer facing the steam box cover and/or the steam box base. Therefore, the inner surface of the steam box cover and/or the steam box base can be arranged to be flat, and the steam box cover and/or the steam box base is convenient to clean.

Optionally, the flow-blocking groove is labyrinth-shaped. Therefore, the flowing distance of the steam in the steam buffer device can be prolonged, and a better condensation effect can be obtained.

Optionally, the choke grooves include a plurality of barriers extending from the membrane layer to the vapor box lid and/or the vapor box base. Therefore, the flowing speed of the steam can be reduced, the flowing time of the steam is prolonged, a good condensation effect is obtained, and bubbles in the steam can be broken.

Optionally, the steam box cover is hermetically connected with the steam box base. Thus, the steam can be prevented from leaking from the seam of the steam box cover and the steam box base.

Optionally, the steam box cover is provided with no opening, and the steam buffer device is communicated with the outside only through the steam inlet and the steam outlet. Therefore, the steam in the steam buffer device is discharged to the steam collecting device only through the steam outlet, and the environment and the user cannot be injured.

Optionally, the volume of the vapor recovery device is 500-. This enables a better condensation to be obtained.

Optionally, the pot body is provided with an installation groove, and the steam recovery device is arranged in the installation groove. Thus, the connection between the steam recovery device and the pot body is realized by a simple structure.

Optionally, the conduit is at least partially disposed within the pan body. This reduces the likelihood of steam damage to the environment and the user and avoids damage to the conduit.

Drawings

The above and other aspects of the present invention will become more apparent and more readily appreciated from the following description of the exemplary embodiments of the present invention taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a perspective view of an electric pressure cooker in accordance with a preferred embodiment of the present invention;

FIG. 2 is a cross-sectional view of the electric pressure cooker shown in FIG. 1;

FIG. 3 is an exploded view of FIG. 1; and

fig. 4 is an exploded view of an electric pressure cooker according to another preferred embodiment of the present invention.

Description of reference numerals:

100. 200: electric pressure cooker 110, 210: pot cover

111: mounting groove of steam buffer device

112. 212, and (3): steam ports 113, 213: conduit port

114. 214: handles 120, 220: pot body

121. 221: inner pan 122, 222: inner pot handle

123. 223: notch 124: mounting groove of steam recovery device

130: inner cover 131: steam port with inner cover

140: steam buffer 141, 241: steam outlet

150. 250: duct 151: first end

152: second end 160, 260: steam recovery device

170: the connecting assembly 180: pressure valve

242: the steam box cover 243: separator layer

244: steam box seat 245: flow-blocking groove

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like are used herein for purposes of illustration only and are not to be construed as limiting.

Fig. 1 schematically shows an electric pressure cooker 100 according to a preferred embodiment of the present invention.

As shown in fig. 1, the electric pressure cooker 100 includes a cover 110 and a body 120. The pot body 120 is substantially in a rounded rectangular parallelepiped shape and has a cylindrical inner pot receiving portion into or from which the inner pot 121 can be freely put or taken out to facilitate the cleaning of the inner pot 121.

The pot cover 110 has a substantially rounded rectangular parallelepiped shape and substantially corresponds to the shape of the pot body 120. As shown in fig. 1, the lid 110 rotatably covers the body 120 by a connecting assembly 170, such as a hinge assembly, so that the lid 110 can move between an open position and a closed position shown in fig. 1 with respect to the body 120. The connection assembly 170 is disposed at one end of the electric pressure cooker 100 and connects the cover 110 and the body 120. The lid 110 is provided with a handle 114, and a user can move the lid 110 from the closed position to the open position using the handle 114.

The electric pressure cooker 100 further comprises a steam buffering means 140, the steam buffering means 140 being detachably mounted to the lid 110. The steam buffer device is used to extend the flow distance of the steam within a volume such that the steam may at least partially condense into water. In order to reduce the flow noise of steam within steam buffer device 140, at least a portion of steam buffer device 140 may be made of a sound absorbing material, as will be described in detail below. In the illustrated embodiment, the pot cover 110 is provided with a steam buffer mounting groove 111 for receiving the steam buffer 140.

In addition, a steam recovery device 160 is disposed at a side of the pot body 120 of the electric pressure cooker 100. Steam in the steam buffer device 140 may enter the steam recovery device 160 via the conduit 150. The volume of the steam recovery device 160 may range from 500 ml to 2000 ml, depending on the configuration and size of the electric pressure cooker 100. In the illustrated embodiment, the pan body 120 is provided with a steam recovery device mounting groove 124. For aesthetic reasons, the steam recycling device mounting groove 124 can be recessed on the surface of the pan body 120, and after the steam recycling device 160 is mounted in the steam recycling device mounting groove 124, the outer contour of the steam recycling device 160 can be consistent with the outer contour of the pan body 120. In the illustrated embodiment, the vapor recovery device 160 is provided at the top thereof with a connector, and the vapor recovery device 160 is detachably provided in the vapor recovery device mounting groove 124 in such a manner as to be engaged therewith.

Turning now to fig. 3, the inner pot 121 is generally made of a metal material and has a circular opening on an upper surface for containing a material to be heated, such as rice, soup, etc. In addition, a heating device for heating the inner pot 121 may be included in the pot body 120. Notches 123 are formed in two sides of the pot body 120 and used for accommodating the inner pot handles 122 on two sides of the top of the inner pot 121, and a user can take the inner pot 121 out of the inner pot accommodating part by using the inner pot handles.

The inner side of the pot cover 110 is provided with an inner cover 130, the inner cover 130 is detachably provided with a pressure valve 180, the inner cover 130 is provided with an inner cover steam port 112, and steam in the inner pot 121 enters the pressure valve 180 through the inner cover steam port 112 and enters the steam buffer device 140 through the pressure valve 180.

Specifically, the bottom of the steam buffer device 140 is provided with a steam inlet (not shown) and a steam outlet 141, and the steam inlet is communicated with the pressure valve 180 so that the steam generated inside the inner pot 121 can enter the steam buffer device 140. And the steam outlet 141 communicates with the guide pipe port 113 of the steam buffer mounting groove 111 to enable steam to enter the steam recovery device 160 through the guide pipe 150.

In addition, a control device (not shown) such as a circuit board may be further provided inside the electric pressure cooker 100, and it should be understood by those skilled in the art that the circuit board may be provided in the cover 110 and/or the body 120, and the circuit board is electrically connected to various sensing devices (such as a temperature sensor, a humidity sensor, a pressure sensor, etc.) and various operating devices (such as a heating device) of the electric pressure cooker 100.

The conventional steam box has a steam opening at the top thereof, which is communicated with the outside atmosphere, and the steam (the non-condensed portion) entering the steam box from the inner pot 121 is discharged out of the steam box through the steam opening, which may cause the humidity of the use environment of the electric pressure cooker 100 and the discharged steam may cause damage to the user. In addition, noise is large when exhausting.

In contrast, the top of the vapor buffer device 140 of the present invention is not open, i.e., the vapor is not directly exhausted from the vapor buffer device 140 to the outside atmosphere, but enters the vapor recovery device 160 via the conduit 150. In fact, since the steam is condensed into water when it is cooled, a certain amount of water is present in the steam recovery device 160, and the guide pipe 150 may be extended to the bottom of the steam recovery device 160, so that the steam from the steam buffer device 140 enters the steam recovery device 160 and contacts with the water, thereby being rapidly condensed into condensed water.

It is conceivable that a certain amount of water may be stored in the steam recovery device 160 in advance at the time of use, and the temperature of this water is room temperature. Since water at room temperature is cooler than condensed water (the temperature of the condensed water after the steam is transformed from a gaseous state to a liquid state may be higher than 60 ℃), the heat exchange effect of the steam and the water at room temperature is more obvious and violent, and therefore, the steam is more rapidly condensed when encountering the water at room temperature. Thereby enabling to ensure that no steam is discharged out of the steam recovery device 160.

Referring to fig. 2 and 3, the catheter 150 has a catheter body and first and second ends 151 and 152 at opposite ends of the catheter body. Wherein, in the working state, the first end 151 is communicated with the conduit port 113 of the steam buffer device mounting groove 111, and the second end 152 extends to the approximate bottom position of the steam recovery device 160. The conduit body is configured to be closed so that steam does not escape from the conduit body, and in fact, due to the pressure of the steam from the inner pot 121, the pressure of the steam at the first end 151 forces the steam in the conduit body towards the second end 152. Further, at least a portion of the conduit 150, such as the conduit body, may be disposed within the pan body to avoid damage.

Based on the heat exchange between the steam and the steam buffer device 140, a portion of the steam in the steam buffer device 140 is condensed into condensed water, and the condensed water may also enter the steam recycling device 160 through the conduit 150. In order to allow more water in the steam buffer 140 to be condensed, a flow blocking passage may be provided in the steam buffer 140. The steam inlet and the steam outlet 141 are communicated through the choke passage to increase a contact area of the steam with the steam buffer device 140 and to extend a flow distance of the steam within the steam buffer device 140.

However, since the steam inlet and the steam outlet 141 are communicated through the choke flow passage, steam from the inner pan 121 exits the steam buffering means without other outlets, and the steam is at least partially condensed into water in the choke flow passage. However, the steam of materials such as rice water is not completely water in composition, and the impure steam becomes a substance with impurities after being condensed and adheres to the flow-blocking channel, and the more the bent part of the flow-blocking channel is, the more such impurities are easily accumulated, which brings trouble to cleaning. In addition, the noise when the steam circulates in the choke passage is generally large.

Therefore, in another alternative embodiment of the present invention, as shown in fig. 4, vapor buffer device 140 includes a box and a membrane layer 243 disposed in the box. In fig. 4, schematically showing an electric pressure cooker 200 according to another preferred embodiment of the present invention, the same components as those of the first embodiment are given similar reference numerals for clarity, except that the first digit of the reference numeral is changed from "1" to "2".

Similar to the electric pressure cooker 100 of the first embodiment, the electric pressure cooker 200 includes a cover 210 and a body 220, and the cover 210 is provided with a handle 214. Grooves are formed in both sides of the pot body 220 to accommodate inner pot handles 222 at both sides of the top of the inner pot 221, so that a user can take out the inner pot 221 from the inner pot accommodating part.

The electric pressure cooker 200 further comprises a steam buffer device 240, and the steam buffer device 240 is detachably mounted to the cover 210. In the illustrated embodiment, the cover 210 is provided with a steam buffer mounting groove 211 for receiving the steam buffer 240. In addition, a steam recovery device 260 is disposed at a side of the pot body 220 of the electric pressure cooker 200. The steam in the steam buffer 240 may enter the steam recovery device 260 via the conduit 250.

Unlike the first embodiment, the vapor buffer device 240 includes a case and a membrane layer 243 installed in the case. The membrane layer 243 is provided with a flow blocking groove 245, and at least a part of the flow blocking passage is formed by the flow blocking groove 245, for example, the flow blocking groove 245 may form a flow blocking passage together with the inner surface of the case. In addition, a plurality of blocking members extending toward the inner surface of the cartridge body may be disposed in the flow blocking groove 245 to reduce the flow velocity of the steam in the cartridge body and increase the condensation area, and to break up bubbles in the steam.

It is easily conceived that the choke grooves 245 may be constructed in a labyrinth shape, and the labyrinth-shaped choke grooves 245 may increase an area of the choke passage contacting the steam, which extends a flowing distance of the steam in the steam box.

In addition, the diaphragm layer 243 may be made of a sound absorbing material, such as silicon rubber, a porous loose sponge body, or a porous ceramic body, whereby the diaphragm layer 243 may reduce the sound of the steam inside the steam buffer device 240.

Optionally, the membrane layer 243 is made of flexible silicone. In this way, the membrane layer 243 is more durable and may be better housed in the case. To inhibit bacterial growth, the membrane layer 243 may be made of an antimicrobial, easily washable, flexible material.

When the steam buffer device 240 is cleaned, only the box body needs to be opened, the membrane layer 243 is detached for cleaning, the flow blocking groove 245 (blocking piece) is not arranged on the box body of the steam buffer device 240, and a groove for storing dirt and dirt does not exist on the box body, so that the box body is very easy to clean, and the membrane layer 243 is an independent component separated from the box body, so that the membrane layer can be conveniently removed from the box body and cleaned.

Further, the box body may be configured to be divided into a steam box holder 244 and a steam box cover 242, and the steam box holder 244 and the steam box cover 242 are detachably and airtightly coupled to ensure that steam does not escape from the coupling. The membrane layer 243 which can block steam and break bubbles to reduce noise is detachably arranged in the box body, namely between the steam box seat 244 and the steam box cover 242, and after the steam box seat 244 and the steam box cover 242 are opened, the membrane layer 243 can be conveniently taken out or installed.

The steam box holder 244 is provided with a steam inlet and a steam outlet 241, the steam inlet communicating with the inner pot 221 of the electric pressure cooker 200. The steam outlet 241 is in communication with a steam recovery device 260 via a conduit 250. When the electric pressure cooker 200 is in an operating state, steam in the inner pot 221 can enter the box body of the steam buffer device 240 through the steam inlet.

Specifically, referring to fig. 4, the flow blocking groove 245 provided on the membrane layer 243 constitutes a flow blocking passage together with the steam cartridge seat 244. Of course, it is contemplated that flow-impeding grooves 245 may also be provided on the surface of membrane layer 243 facing steam box cover 242. Also, flow-blocking slots 245 may include a plurality of blocking members therein that extend from membrane layer 243 toward vapor box cover 242 and/or vapor box base 244 to act as vapor barriers.

It will be appreciated by those skilled in the art that the steam inlet and the steam outlet 241 may be offset in order to extend the flow distance of the steam within the choke passage, for example, the steam inlet may be disposed at a rear portion (or one side) of the steam cartridge seat 244 and the steam outlet may be disposed at a front portion (or the other side) of the steam cartridge seat 244.

In addition, in order to enable the condensed water in the steam buffer 240 to be better discharged to the steam recovery device 260, the bottom of the steam buffer 240 may be configured to have a depression at which a steam outlet is provided, whereby the condensed water may more smoothly flow to the steam outlet and enter the duct 250 under the influence of gravity.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "device" and the like, when used herein, can refer to either a single part or a combination of parts. Terms such as "mounted," "installed," "disposed," and the like, as used herein, may refer to one component as being directly attached to another component, or may refer to one component as being attached to another component through intervening components. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.

The present invention has been described in terms of the above embodiments, but it should be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the scope of the described embodiments. It will be appreciated by those skilled in the art that many variations and modifications may be made to the teachings of the invention, which fall within the scope of the invention as claimed.

Claims

1. An electric pressure cooker comprising: the electric pressure cooker is characterized by further comprising a steam buffer device, a steam recovery device and a guide pipe, wherein the steam buffer device is detachably mounted on the cooker cover and communicated with the cooker body, the steam buffer device is communicated with the steam recovery device through the guide pipe so as to guide steam entering the steam buffer device from the inside of the cooker body into the steam recovery device, and the steam buffer device comprises a diaphragm layer, wherein a flow blocking groove is arranged on the diaphragm layer, and the flow blocking groove forms at least part of a flow blocking channel.

2. The electric pressure cooker according to claim 1, wherein the steam buffer device comprises a steam inlet and a steam outlet, the steam inlet is communicated with the cooker body, and the steam outlet is communicated with the conduit, so that the steam entering the steam buffer device from the inside of the cooker body is discharged only through the conduit.

3. The electric pressure cooker according to claim 1, wherein the steam buffering means comprises a box body, the diaphragm layer is installed in the box body, the box body is provided with a steam inlet and a steam outlet, the box body is internally provided with the bent flow blocking channel, and the steam inlet and the steam outlet are communicated through the flow blocking channel.

4. The electric pressure cooker according to claim 3, wherein the box body comprises a steam box cover and a steam box base, the steam box base is detachably connected with the steam box cover, the steam box base is provided with the steam inlet and the steam outlet, the steam inlet is communicated with the inside of the cooker body, and the steam outlet is communicated with the guide pipe.

5. The electric pressure cooker according to claim 4, wherein the membrane layer is constructed as a separate member separable from the steam box cover and the steam box base, respectively.

6. The electric pressure cooker of claim 4, wherein the membrane layer is made of a flexible sound absorbing material.

7. The electric pressure cooker of claim 6, wherein the flexible sound absorbing material is at least one of silicone rubber, a porous loose sponge body, and a porous ceramic body.

8. The electric pressure cooker according to claim 4, characterized in that the flow-blocking groove is provided on a surface of the membrane layer facing the steam box cover and/or the steam box base.

9. The electric pressure cooker according to claim 4, wherein the flow-blocking groove is labyrinth-shaped.

10. The electric pressure cooker according to claim 4, characterized in that the flow-blocking groove comprises a plurality of blocking elements extending from the membrane layer towards the steam box cover and/or the steam box base.

11. The electric pressure cooker according to claim 4, wherein the steam box cover is hermetically connected with the steam box base.

12. The electric pressure cooker according to claim 4, wherein the steam box cover has no opening, and the steam buffer device is communicated with the outside only through the steam inlet and the steam outlet.

13. The electric pressure cooker according to claim 1, wherein the volume of the steam recovery device is 500 and 2000 ml.

14. The electric pressure cooker according to claim 1, wherein the body is provided with a mounting groove, and the steam recovery device is arranged in the mounting groove.

15. The electric pressure cooker of claim 1, wherein the conduit is at least partially disposed within the body.