WO2018157408A1 - Lid for cooking utensil and cooking utensil having same - Google Patents

Abstract

A lid for a cooking utensil and the cooking utensil having same. The lid (100) for the cooking utensil comprises: a lid plate (1) formed with steam holes communicated with a cooking space of the cooking utensil for exhausting steam; a valve base (12) located above the lid plate (1), the lower end of the valve base (12) being communicated with the steam holes and closing the peripheries of the steam holes, and a valve hole (11) being formed on the sidewall of the upper end of the valve base; and a switch valve (6) opposite to the valve base for closing and opening the valve hole. The cooking utensil can enhance the cooking effect and flatness of food.

Description

Cover for cooking utensils and cooking appliance therewith Technical field

The present invention relates to the field of household appliances, and in particular to a cover for a cooking appliance and a cooking appliance therewith.

Background technique

In the related art, when the rice cooker is cooking rice, the effect and flatness of the rice can be improved by changing the pressure in the pot. However, the pressure valve scheme in the related art has problems such as poor feasibility, low accuracy, complicated structure, unreliability, and high cost.

Summary of the invention

The present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, it is an object of the present invention to provide a cover for a cooking appliance which is simple in structure, high in reliability and low in cost.

Another object of the present invention is to provide a cooking appliance having the above-described lid for a cooking appliance.

A cover for a cooking appliance according to an embodiment of the first aspect of the present invention, comprising: a cover plate formed with a steam hole for communicating a cooking space of the cooking appliance for discharging steam; a valve seat, a valve seat is located on the upper surface of the cover plate, a lower end of the valve seat communicates with the steam hole and closes a circumference of the steam hole, and a valve hole is formed on a sidewall of the upper end of the valve seat; The switching valve is opposite to the valve seat for closing and opening the valve hole, the switching valve includes: a sealing member movable between a position at which the valve hole is closed and opened; a driving member, The drive member is coupled to the seal to drive the seal to move between a position to close and open the valve bore.

In accordance with an embodiment of the present invention, a cover for a cooking appliance is coupled to a seal through which a seal can be driven to move between a position to close the valve bore and a position to open the valve bore. This can change the pressure in the cooking space, improve the cooking effect and flatness of the food. In addition, the driving member can control the pressure in the cooking space by magnetic force, spring force or the like, instead of the self-weight of the small ball in the related art, which is advantageous for improving the accuracy of the control.

Further, the cover for a cooking appliance according to the above embodiment of the present invention has the following additional technical features:

According to some embodiments of the present invention, the driving member includes: an iron core and an electromagnetic driving portion for driving the movement of the iron core, the sealing member is disposed on the iron core; the electromagnetic driving portion and the electromagnetic driving portion The iron core is connected.

Further, the driving member further includes a return spring, wherein the return spring is respectively connected to the electromagnetic driving portion and the iron core, wherein the return spring is configured to drive the sealing member to close the valve hole, The electromagnetic drive portion is configured to drive the seal to open the valve hole when energized; or the return spring is configured to drive the seal to open The valve hole is configured to drive the seal to close the valve hole when energized.

Further, the end of the iron core is provided with a hook portion, and the sealing member covers the hook portion.

According to some embodiments of the present invention, the seal has a predetermined amount of compression S when the seal closes the valve hole, and the predetermined amount of compression S of the seal is not less than 0.1 mm.

According to some embodiments of the invention, the seal is spaced apart from the valve bore by a predetermined distance L when the seal opens the valve bore.

Further, the predetermined distance L is not less than 3 mm.

Further, the valve seat extends in an up and down direction, and the sealing member and the driving member are both disposed outside the valve seat.

According to some embodiments of the present invention, the cover further includes: a detecting device disposed on the cover plate for detecting a temperature and/or a pressure of a cooking space of the cooking appliance, the detecting device Signal transmission with the drive member.

A cooking appliance according to an embodiment of the second aspect of the present invention, comprising: a pot body having a top portion of the pot body open; a lid body openably covering the top of the pot body, the lid body being The above-mentioned cover for a cooking appliance; a heating device provided on the pot for heating the material in the pot.

The additional aspects and advantages of the invention will be set forth in part in the description which follows.

DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from

1 is a schematic partial structural view of a cooking appliance according to an embodiment of the present invention;

Figure 2 is a partial enlarged view of the circled portion of Figure 1 in a state;

Figure 3 is a partial enlarged view of the circled portion of Figure 1 in another state;

4 is a partial structural schematic view of a cooking appliance in the related art;

Figure 5 is a partial enlarged view of the circled portion of Figure 4.

Reference mark:

a cover 100 for a cooking appliance,

Cover plate 1, valve hole 11, valve seat 12, air inlet 121,

Sealing member 2, driving member 3, iron core 31, hook portion 311, electromagnetic driving portion 32, return spring 33,

Detection device 4, control module 5, switching valve 6,

Cooking appliance 200,

Pot body 210, heating device 220.

detailed description

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

In the related art, the pressure valve scheme for changing the pressure in the pot, the pressure valve must contain a small ball, and the valve hole is blocked by the small ball to perform the pressing. Since the small ball and the valve hole are rigid parts, the sealing failure and pressure are prone to occur. Inaccurate circumstances. At the same time, the pressure valve scheme in the related art also needs to push the small ball through the electromagnet, which is prone to problems such as improper pushing and jamming. And the switch of the pressure valve is realized according to or depending on the weight of the small ball to block the valve hole. When there is rice and other debris on the edge of the small ball and the valve hole, the problem of inaccurate determination may occur.

A cover 100 for a cooking appliance according to an embodiment of the present invention will be described in detail below with reference to FIGS. 1 through 3. The cooking appliance may be a pressure cooker, a rice cooker or the like.

A cover 100 for a cooking appliance according to an embodiment of the first aspect of the present invention includes a cover plate 1, an on-off valve 6, and a valve seat 12.

Specifically, the cover 1 is used to cover and open the pot of the cooking appliance, and the cover 1 is formed with a steam hole for communicating the cooking space of the cooking appliance for discharging steam. That is, the cover plate 1 may be formed with a steam hole (not shown), which may communicate with the cooking space of the cooking appliance, and the steam hole may be used to discharge steam in the cooking space, so that Advantages are provided for changing the pressure within the cooking space.

2 and 3, in conjunction with FIG. 1, the valve seat 12 is located above the cover plate 1, and the lower end of the valve seat 12 (refer to the lower end of the valve seat 12 in FIG. 2) communicates with the steam hole and closes the steam hole. The circumference is such that the sealing between the valve seat 12 and the cover 1 is ensured, and the valve hole 11 is formed in the side wall of the upper end of the valve seat 12 (refer to the upper end of the valve seat 12 in Fig. 2). Thereby, the steam generated by the cooking space can be introduced into the valve seat 12 via the steam hole, and further discharged through the valve hole 11 to release the pressure.

According to some embodiments of the present invention, referring to FIG. 2 and FIG. 3 in conjunction with FIG. 1, the lower end of the valve seat 12 is formed with an air inlet 121 for communicating a cooking space of the cooking appliance, and the air inlet 121 is opposed to the steam hole The air inlet 121 can be used to communicate the cooking space of the cooking appliance, and the valve hole 11 is formed on the valve seat 12, and the air inlet 121 of the valve seat 12 forms an angle with the valve hole 11 at a predetermined angle. Thereby, steam in the cooking space can be made to enter the valve seat 12 through the air inlet 121 through the steam hole, and then discharged through the valve hole 11 to release pressure.

Wherein, the intake port 121 of the valve seat 12 is at an angle of a predetermined angle with the valve hole 11 (for example, 0° to 180°). This is equivalent to extending the movement path of steam in the valve seat 12 to a certain extent, so that the process of pressure relief is more moderate, the pressure relief shock is reduced, and the safety of use of the cooking appliance is improved.

The angle between the air inlet 121 of the valve seat 12 and the predetermined angle of the valve hole 11 may be 30°, 45°, 60°, 90°, 120°, 135°, 160° or 180°, etc. The angle between the inlet port 121 of the valve seat 12 and the predetermined angle of the valve hole 11 can be adaptively set according to actual needs.

The switching valve 6 is opposed to the valve seat 12 for closing and opening the valve hole 11. For example, in the embodiment of the present invention as shown in FIG. 2, the switching valve 6 and the valve seat 12 may be opposed in the left-right direction, and by controlling the position of the switching valve 6 relative to the valve seat 12, the valve hole 11 may be opened or Closed to achieve corresponding control of the cooking appliance.

Referring to FIGS. 2 and 3, the on-off valve 6 may include a seal 2 and a drive member 3. Specifically, the seal 2 is movable between a position where the valve hole 11 is closed and a position at which the valve hole 11 is opened. Wherein, the sealing member 2 can be a sealing rubber head or the like. The opening or closing of the valve hole 11 can be better achieved by the sealing member 2, thereby facilitating the smooth progress of the pressure holding process and the pressure releasing process of the cooking appliance, and ensuring the normal use of the cooking appliance.

In Fig. 2, the sealing member 2 is in a position to open the valve hole 11, and the valve hole 11 is in an open state; in Fig. 3, the sealing member 2 is in a position to close the valve hole 11, and the valve hole 11 is in a closed state.

The drive member 3 is coupled to the seal 2 to drive the seal 2 to move between a position to close the valve bore 11 and open the valve bore 11. In other words, the drive member 3 is connected to the seal member 2 such that the drive member 3 can be driven to move between the position at which the valve bore 11 is closed and the position at which the valve bore 11 is opened. The pressure relief process and the pressure holding process are ensured smoothly, so that the cooking utensil can be cooked under variable pressure to enhance the taste of the food.

Wherein, in the initial position, the valve hole 11 may be in a closed state or an open state. The driving member 3 may be a non-gravity pressure valve, the driving member 3 may extend in a horizontal direction, and the driving member 3 may control the pressure in the cooking space by a magnetic force (for example, an electromagnet, a magnetic coil or magnet generated by energization), a spring force, or the like. , rather than the self-weight of parts such as small balls in the related art. In this way, the closing and opening of the valve member 11 by the driving member 3 can be performed without relying on the gravity of the component, thereby facilitating the improvement of the accuracy of the control.

For example, in a specific embodiment of the present invention, the cover plate 1 may be annular, the driving member 3 may extend along the radial direction of the cover plate 1 toward the valve hole 11, and the driving member 3 is connected to the sealing member 2 such that the sealing member 2 is passed through It is possible to move between the position where the valve hole 11 is closed and the position at which the valve hole 11 is opened, so that the pressure in the cooking space can be changed, and by changing the pressure in the cooking space, the rice effect and the flatness can be improved.

According to the cover 100 for a cooking appliance according to an embodiment of the present invention, the driving member 3 is connected to the sealing member 2, and the driving member 3 can drive the sealing member 2 to move between a position at which the valve hole 11 is closed and a position at which the valve opening 11 is opened. . This can change the pressure in the cooking space, improve the cooking effect and flatness of the food. In addition, the driving member 3 can control the pressure in the cooking space by magnetic force, spring force, or the like, instead of the self-weight of the small ball in the related art, which is advantageous for improving the accuracy of the control.

2 and 3, the driving member 3 includes an iron core 31, an electromagnetic driving portion 32, and a return spring 33, according to some embodiments of the present invention. In a specific embodiment of the invention, the driving member 3 may be an electromagnet or the like. Of course, the drive member 3 can also be other components or mechanisms having a movable function.

Preferably, the sealing member 2 is mounted on the iron core 31 such that the sealing member 2 can move with the movement of the iron core 31.

Specifically, the sealing member 2 is provided on the iron core 31, the iron core 31 may extend toward the valve hole 11, and the sealing member 2 may be provided at an end of the iron core 31 adjacent to the valve hole 11. For example, the sealing member 2 may be provided at the right end portion of the iron core 31 in FIG. The seal 2 can be opposed to the valve bore 11, which facilitates closing the valve bore 11 or opening the valve bore 11 through the seal 2, thereby enabling adjustment of the pressure within the cooking space.

The electromagnetic driving portion 32 is connected to the iron core 31 to drive the sealing member 2 to open the valve hole 11. That is, the electromagnetic driving portion 32 is connected to the iron core 31, so that the valve member 11 can be opened by the electromagnetic driving portion 32 to drive the sealing member 2 to be released.

For example, when the driving member 3 is energized, the electromagnetic driving portion 32 can drive the sealing member 2 to open the valve hole 11 to release the pressure.

The return springs 33 are connected to the electromagnetic drive portion 32 and the iron core 31, respectively. Wherein, in some embodiments of the invention, the return spring 33 may be configured to drive the seal 2 to close the valve bore 11 and the electromagnetic drive 32 is configured to drive the seal 2 to open the valve bore 11 when energized. Therefore, when energized, the electromagnetic driving portion 32 can drive the sealing member 2 to open the valve hole 11 to perform pressure relief; when the power is turned off, the sealing member 2 can be driven by the return spring 33 to close the valve hole 11 Holding and cooking foods is beneficial to improve the reliability of use of the cooking utensils.

The present invention is not limited thereto, and in other embodiments of the present invention, the return spring 33 may be configured to drive the seal 2 to open the valve hole 11, and the electromagnetic drive portion 32 may be configured to drive the seal 2 to close the valve hole 11 when energized. Therefore, when the power is on, the electromagnetic driving portion 32 can drive the sealing member 2 to close the valve hole 11 to hold the pressure and cook the food; when the power is turned off, the sealing member 2 can be driven by the return spring 33 to open the valve hole. 11 opening for pressure relief is beneficial to improve the reliability of use of the cooking appliance.

Further, in conjunction with FIGS. 2 and 3, the end of the core 31 is provided with a hook portion 311, and the sealing member 2 covers the hook portion 311. That is, the hook portion 311 of the iron core 31 is connected to the sealing member 2 and embedded in the sealing member 2. In this way, a reliable connection between the sealing member 2 and the iron core 31 can be realized, and the movement of the sealing member 2 can be driven by the action of the iron core 31 to realize the closing or opening of the valve hole 11.

3, according to some embodiments of the present invention, when the sealing member 2 closes the valve hole 11, the sealing member 2 has a predetermined amount of compression S (refer to the distance S in FIG. 3), and the predetermined compression of the sealing member 2 The amount S is not less than 0.1 mm. Therefore, it is advantageous to ensure the sealing reliability of the sealing member 2 to close the valve hole 11, to better maintain the pressure, and to improve the mouthfeel of the food.

2, according to some embodiments of the present invention, when the sealing member 2 opens the valve hole 11, the sealing member 2 is spaced apart from the valve hole 11 by a predetermined distance L (refer to the distance L in FIG. 2). Further, the predetermined distance L is not less than 3 mm. In this way, the valve hole 11 can be opened, which is advantageous for ensuring the smoothness of the valve hole 11 and the pressure relief speed.

According to the cover 100 for a cooking appliance according to an embodiment of the present invention, the driving member 3 is connected to the sealing member 2 such that the driving member 3 can drive the position of the sealing member 2 between the position of closing the valve hole 11 and the position at which the valve opening 11 is opened. activity. This ensures that the pressure within the cooking appliance can be varied to better cook the food.

Further, in conjunction with FIG. 1 to FIG. 3, the valve seat 12 can extend in the up and down direction, and the lower end of the valve seat 12 forms an air inlet. 121, a valve hole 11 is formed in a side wall of the upper end of the valve seat 12, and the sealing member 2 and the driving member 3 are both disposed outside the valve seat 12. In this way, the steam in the cooking space can be discharged into the valve seat 12 from the bottom to the top by the air inlet 121, and then discharged through the valve hole 11 on the side wall of the upper end of the valve seat 12 to be released. In this way, the process of pressure relief is made more moderate, which is beneficial to improve the safety of use of the cooking appliance.

Referring to Figure 1, according to some embodiments of the present invention, the cover 100 further includes: a detecting device 4 disposed on the cover 1 for detecting the temperature and/or pressure of the cooking space of the cooking appliance, the detecting device 4 and Drive 3 signal transmission. In other words, the detecting device 4 can be provided on the cover plate 1, and the detecting device 4 can be used to detect the temperature and/or pressure of the cooking space of the cooking appliance, and the detecting device 4 and the driving member 3 are signal-transmitted. When the detecting means 4 detects that the temperature and/or pressure in the cooking space reaches a predetermined value, the detecting means 4 transmits a signal to the driving member 3, causing the driving member 3 to drive the sealing member 2 to close or open the valve hole 11.

The detecting device 4 may be a temperature sensor, a pressure sensor, or a component that can simultaneously detect temperature and pressure. The detection device 4 can be used to detect the temperature of the cooking space of the cooking appliance; the detection device 4 can also be used to detect the pressure of the cooking space of the cooking appliance; the detection device 4 can also be used to detect the temperature and pressure of the cooking space of the cooking appliance.

The action of the driving member 3 can be realized by precisely controlling the aforementioned distance L or the amount of compression S, unlike the related art in which an unstable scrollable sphere is used. The action signal of the drive member 3 is derived from pressure and/or temperature signals within the cooking space.

In addition, in conjunction with FIG. 1 , the cover 100 may further include a control module 5 , the control module 5 is connected to the cover 1 , the control module 5 may be disposed inside or outside the cover 1 , and the control module 5 may be transmitted with the detection device 4 . This makes it possible to better control the opening or closing of the valve hole 11.

Specifically, when the detecting device 4 detects that the temperature in the cooking space reaches a predetermined temperature, the detecting device 4 transmits a signal to the control module 5, and the control module 5 controls the driving member 3 to move toward the closed position of the closing valve hole 11. When the detecting device 4 detects that the pressure in the cooking space reaches a predetermined pressure, the detecting device 4 transmits a signal to the control module 5, and the control module 5 controls the driving member 3 to move toward the open position in which the valve hole 11 is opened.

Wherein, the predetermined temperature may be in the range of 75 ° C to 98 ° C, for example, 75 ° C, 80 ° C, 85 ° C, 90 ° C, 95 ° C or 98 ° C, and the like. The predetermined pressure may be in the range of 110 KPa to 205 KPa, for example, 110 KPa, 130 KPa, 150 KPa, 180 KPa, 200 KPa, or 205 KPa, or the like. The predetermined temperature and the predetermined pressure may be adaptively set according to actual needs.

Referring to FIG. 1, a cooking appliance 200 according to an embodiment of the second aspect of the present invention includes a pot body 210, a lid body, and a heating device 220.

Specifically, the top of the pot body 210 is open, and the cover body is openably covered on the top of the pot body 210, and the cover body is The above described cover body 100 for a cooking appliance; the heating device 220 is disposed on the pot body 210, and the heating device 220 can be used to heat the material in the pot body 210. Thus, by providing the cover 100 for the cooking appliance of the first aspect of the above embodiment on the cooking appliance 200, the performance of the cooking appliance 200 can be improved, and the market competitiveness of the cooking appliance 200 can be improved.

The cooking appliance 200 according to an embodiment of the present invention includes a cover plate 1, a sealing member 2, a driving member 3, a detecting device 4, a control module 5, a pot body 210, and a heating device 220. The driving member 3 includes an iron core 31, an electromagnetic driving portion 32, and a return spring 33. A detection device 4 is provided on the cover plate 1, and the pressure and/or temperature in the pot body 210 can be detected, which is advantageous for further controlling the pressure change in the pot body 210.

The operation of the cooking appliance 200 according to an embodiment of the present invention will be described in detail below with reference to FIGS. 1 through 3.

Specifically, an foodstuff such as rice water or the like is placed in the pot body 210, the power source is turned on, the heating device 220 is heated, and the water in the pot body 210 is boiled and vaporized. The initial state of the driving member 3 is open, that is, the valve hole 11 is in an open state, and the pressure in the pot body 210 is the same as the external pressure. During the heating and water vaporization of the pot body 210, the detecting device 4 detects the temperature in the pot body 210. . When it is detected that the temperature in the pot body 210 rises to a certain value K1 (K1 can be in the range of 75 ° C to 98 ° C), the detecting device 4 outputs a signal to the control module 5, and the control module 5 controls the driving member 3 to operate, for example, an electromagnet. The iron core 31 and the sealing member 2 are pushed to move, and the valve hole 11 is sealed, so that the inside of the pot body 210 is not connected to the outside; the water in the pot body 210 continues to boil and vaporize, the pressure in the pot body 210 continues to rise, and the detecting device 4 detects the pot body. 210 pressure and / or temperature. When the detected value reaches the set pressure P1 (P1 can be in the range of 110KPa to 205KPa), the output signal is sent to the control module 5, and the control module 5 controls the driving member 3 to move, pulling the iron core 31 and the sealing member 2 to move, and disengage The valve hole 11 opens the valve hole 11 , and the large pressure in the pot body 210 is released through the valve hole 11; during the pressure relief process, the detecting device 4 detects the pressure and/or temperature in the pot body 210 and is controlled by the control module 5 The pressure relief time (the pressure relief time can be set according to the actual needs), when the valve hole 11 is closed again, the output signal is sent to the control module 5, the control module 5 controls the driving member 3 to operate, the sealing member 2 closes the valve hole 11; The pressure rises again, so that the pressure is increased and the pressure is released repeatedly, and the variable pressure is achieved to improve the cooking effect and flatness of the food. The operation of the cooking appliance 200 according to an embodiment of the present invention is thus completed.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" and the like means a specific feature described in connection with the embodiment or example, A structure, material or feature is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms is not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, various embodiments or examples described in the specification, as well as features of various embodiments or examples, may be combined and combined.

Although the embodiments of the present invention have been shown and described, it is understood that the above-described embodiments are illustrative and are not to be construed as limiting the scope of the invention. The embodiments are subject to variations, modifications, substitutions and variations.

Claims (10)

A cover for a cooking appliance, comprising: a cover plate formed with a steam hole for communicating the cooking space of the cooking appliance for discharging steam; a valve seat, the valve seat is located above the cover plate, a lower end of the valve seat communicates with the steam hole and closes a circumference of the steam hole, and a valve hole is formed on a sidewall of the upper end of the valve seat ; An on-off valve, the on-off valve is opposite to the valve seat for closing and opening the valve hole, the on-off valve comprising: a seal movable between a position to close and open the valve bore; a drive member coupled to the seal to drive the seal to move between a position to close and open the valve bore. A cover for a cooking appliance according to claim 1, wherein said driving member comprises a core and an electromagnetic driving portion for driving said core to move, said sealing member being provided on said core The electromagnetic driving portion is connected to the iron core. The cover for a cooking appliance according to claim 2, wherein the driving member further comprises a return spring, and the return spring is respectively connected to the electromagnetic driving portion and the iron core; Wherein the return spring is configured to drive the seal to close the valve hole, and the electromagnetic drive is configured to drive the seal to open the valve hole when energized; or The return spring is configured to drive the seal to open the valve bore, and the electromagnetic drive is configured to drive the seal to close the valve bore when energized. A cover for a cooking appliance according to claim 2, wherein the end of the core is provided with a hook portion, and the seal covers the hook portion. The cover for a cooking appliance according to any one of claims 1 to 4, wherein the seal has a predetermined amount of compression S when the seal closes the valve hole, and The predetermined amount of compression S of the seal is not less than 0.1 mm. A cover for a cooking appliance according to any one of claims 1 to 5, wherein the seal is spaced apart from the valve hole by a predetermined distance L when the seal opens the valve hole . A cover for a cooking appliance according to claim 6, wherein said predetermined distance L is not less than 3 mm. The cover for a cooking appliance according to any one of claims 1 to 7, wherein the valve seat extends in an up and down direction, and the seal member and the driving member are both disposed on the valve seat The outside. The cover for a cooking appliance according to any one of claims 1 to 8, wherein the cover further comprises: A detecting device is provided on the cover for detecting a temperature and/or a pressure of a cooking space of the cooking appliance, and the detecting device transmits a signal to the driving member. A cooking appliance comprising: a pot body, the top of the pot body is open; a cover body that is openably covered on the top of the pan body, the cover body being a cover body for a cooking appliance according to any one of claims 1-9; A heating device is disposed on the pot for heating the material in the pot.

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