CN211432295U - Cooking utensil - Google Patents

Abstract

The application provides a cooking utensil, including the pot body, the pot body is including the heat preservation cover that is equipped with lateral wall and diapire. The pot body also comprises a pressure detection element, and the pressure detection element comprises a linear Hall element, a magnetic element and a lever. The lever is provided with an inner end and an outer end, the inner end is abutted to the bottom wall, the magnetic element is arranged on the outer end, and the linear Hall element is arranged at intervals with the magnetic element along the vertical direction. The pressure detection element of the cooking appliance can detect the cooking cavity in real time and accurately; and adopt the lever to keep away from the diapire setting with linear hall element, can avoid linear hall element to receive high temperature to influence, prolong its life.

Description

Cooking utensil

Technical Field

The present application relates to a cooking appliance.

Background

The pot body of the electric pressure cooker on the market at present mainly comprises a heat preservation cover, a heating plate, an inner pot, a shell and the like, wherein a pressure switch is arranged on the bottom wall of the heat preservation cover. When cooking, the pot cover covers the pot body and is locked with the pot body, so that a closed cooking cavity is formed between the pot cover and the pot body. After the continuous heating, the pressure in the cooking cavity rises gradually, the inner pot is pushed to move downwards, the inner pot extrudes the heating plate downwards, and then the bottom wall of the heat-insulating cover deforms. The bottom wall of the heat preservation cover deforms, so that the spring piece of the pressure switch deforms, when certain pressure is reached, the pressure switch is triggered to be switched off, and the control system receives a switching-off signal to indicate that the pressure in the cooking cavity reaches a certain threshold value. This threshold pressure is typically relatively high, e.g., 70KPa, and for pressures below the threshold, it is not recognizable and therefore accurate control of the pressure is not possible.

Accordingly, there is a need for improvements to existing cooking appliances.

SUMMERY OF THE UTILITY MODEL

The application provides a cooking utensil, it is equipped with the pressure detection component that can real-time and accurate detection culinary art intracavity pressure value.

Specifically, the method is realized through the following technical scheme: the utility model provides a cooking utensil, includes the pot body, the pot body is including the heat preservation cover that is equipped with lateral wall and diapire, the pot body still includes pressure detection component, pressure detection component includes linear hall element, magnetic element and lever, the lever is equipped with inner and outer end, inner with the diapire is contradicted, magnetic element sets up on the outer end, linear hall element along vertical direction with the magnetic element interval sets up. The pressure detection element can detect the cooking cavity in real time and accurately; and the design of the lever is adopted, so that the linear Hall element is far away from the bottom wall, and the damage caused by high temperature is avoided.

According to one embodiment of the present application, the linear hall element is located directly above the magnetic element. The pressure in the cooking cavity is larger, the magnetic element is closer to the linear Hall element, and the corresponding output voltage is larger, so that the system detection is facilitated.

According to one embodiment of the application, the horizontal projection of the linear hall element is located outside the horizontal projection of the heat-retaining cover. The high-temperature influence of the heat preservation cover is avoided, and the service life of the linear Hall element is prolonged.

According to an embodiment of the present application, the pressure detecting element further includes a fixing rod fixed to the side wall and extending downward, and the middle section of the lever is pivotally connected to the fixing rod to form a pivot point. The fixed rod is adopted to pivot the lever, so that the structure is simple.

According to an embodiment of the application, be provided with on the inner end with the conflict head of diapire contact, magnetism magnetic element with the distance of pivot point is greater than the conflict head with the distance of pivot point. The design can enlarge the deformation of the bottom wall, and can more easily cause the magnetic field change of the linear Hall element.

According to an embodiment of the application, the inner end is provided with a butt contact abutting against the bottom wall, the butt contact is riveted on the inner end and is provided with a spherical top. The abutting head is separately arranged and provided with a spherical top, so that the abutting head can be ensured to keep abutting with the bottom wall.

According to one embodiment of the present application, the horizontal distance of the abutment from the centerline of the heat retention shield is less than 3/4 of the radius of the bottom wall. The abutting head cannot be too close to the joint of the bottom wall and the side wall, and pressure measurement is inaccurate due to accommodation of the full forehead.

According to an embodiment of the application, the pot body further comprises a shell positioned outside the heat-insulating cover and a fixing plate mounted on the shell, the fixing plate extends horizontally towards the heat-insulating cover, and the linear Hall element is arranged on the fixing plate in a manner of facing the magnetic element. The linear Hall element is positioned by the fixing plate, the structure is simple, and the manufacture is convenient.

According to one embodiment of the application, the cooking appliance is further provided with a control part electrically connected with the linear Hall element. The control part receives the voltage value of the linear Hall element and obtains the pressure value in the cooking cavity.

According to an embodiment of the application, cooking utensil is electric pressure cooker, the pot body still is equipped with medium plate, base, heating device and interior pot, the medium plate is the annular and is located the top of the pot body, the base is connected the bottom of medium plate, the shell sets up the medium plate with between the base, the cover that keeps warm is located the medium plate, the base reaches in the accommodation space that the shell formed jointly, heating device sets up keep warm cover bottom and between the bottom of interior pot.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

Fig. 1 is a sectional view of a cooking appliance according to an embodiment of the present application.

Fig. 2 is an operation diagram of a pressure detecting element of the cooking appliance.

Fig. 3 is a detection circuit diagram of the pressure detection element.

Description of reference numerals:

the cooker body 1, the cooking cavity 10, the middle plate 11, the base 12, the outer shell 13, the heat preservation cover 14, the side wall 141, the bottom wall 142, the heating device 15, the inner cooker 16, the cooker cover 2, the inner cooker cover 20, the pressure detection element 3, the linear Hall element 31, the magnetic element 32, the lever 33, the inner end 331, the outer end 332, the pivot joint 333, the abutting head 34, the fixing rod 35 and the fixing plate 36.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of devices, systems, apparatuses, and methods consistent with certain aspects of the present application, as detailed in the appended claims.

Referring to fig. 1, the cooking appliance provided by the application is an electric pressure cooker, and comprises a cooker body 1 and a cooker cover 2, wherein the cooker body 1 is provided with cooker body teeth, the cooker cover 2 is provided with cooker cover teeth, the cooker cover 2 covers the cooker body 1, the cooker cover teeth and the cooker body teeth are mutually locked, a sealed cooking cavity 10 is formed between the cooker cover 2 and the cooker body 1, and adaptive pressure cooking can be carried out.

The pot body 1 comprises a pot body and an inner pot 16 (refer to fig. 2) accommodated in the pot body, and the pot body further comprises a middle plate 11, a base 12, a shell 13, a heat preservation cover 14, a heating device 15 and the like. The middle plate 11 is positioned at the top of the pot body 1, the base 12 is connected at the bottom of the middle plate 11, and the shell 13 is arranged between the middle plate 11 and the base 12 to form the outer side surface of the pot body. The middle plate 11, the base 12 and the shell 13 together form a containing space for containing the heat preservation cover 14, the inner pot 16 is placed in the heat preservation cover 14, the pot teeth of the pot body are arranged at the top of the heat preservation cover 14, the heating device 15 is supported on the heat preservation cover 14 and is positioned between the bottom of the inner pot 16 and the bottom of the heat preservation cover 14 to heat the inner pot 16, and the heating device is usually an electromagnetic coil assembly.

Referring to fig. 2, the pot 1 of the cooking appliance of the present application further includes a pressure detecting element 3 for detecting the pressure in the cooking cavity 10, including a linear hall element 31, a magnetic element 32, and a lever 33. The heat-insulating cover 14 includes a side wall 141 and a bottom wall 142, the lever 33 is disposed substantially horizontally on the bottom side of the bottom wall 142, and the lever 33 has an inner end 331 close to the center line of the heat-insulating cover 14 and an outer end 332 away from the center line. The inner end 331 abuts against the bottom wall 142, the outer end 332 is provided with the aforementioned magnetic element 32, and the linear hall element 31 is connected to a power supply and is disposed at a distance from the magnetic element 32 in the vertical direction.

The inner end 331 keeps abutting against the bottom wall 142, when the high-pressure gas in the cooking cavity 10 drives the inner pot 16 to move downwards and further presses the bottom wall 142 of the heat-insulating cover 14 to deform downwards through the heating device, the bottom wall 142 of the heat-insulating cover 14 drives the inner end 331 to move downwards, so that the inner end 331 of the lever 33 is pressed downwards, the outer end 332 of the lever 33 tilts upwards to drive the magnetic element 32 to move upwards, the distance between the magnetic element 32 and the linear hall element 31 changes, the magnetic field around the linear hall element 31 changes, and the output voltage of the linear hall element 31 changes.

In the present embodiment, the magnetic element 32 is a permanent magnet, the linear hall element 31 is located directly above the magnetic element 32, the deformation of the heat retaining cover 14 is increased as the pressure in the cooking chamber 10 is increased, the magnetic element 32 of the lever 33 is closer to the linear hall element 31, and the magnetic field around the linear hall element 31 is increased, and the output voltage is increased. Referring to fig. 3, the pot body 1 or the pot cover 2 of the cooking appliance is further provided with a control part, which is a single chip microcomputer and is provided with a pin electrically connected with the linear hall element 31 for receiving the output voltage output by the linear hall element 31. Because the pressure in the cooker is gradually increased, the deformation of the heat-insulating cover 14 is also gradually generated, the magnetic element 32 at the corresponding lever 33 is slowly close to the linear hall element 31, the magnetism detected by the linear hall element 31 is gradually increased, and the corresponding output voltage is also linearly increased. According to the voltage rising linear curve of the linear Hall element 31, the pressure in the cooking cavity 10 can be detected in real time and accurately, and the cooking utensil can adjust the cooking program according to the pressure value detected in real time.

The working temperature of the linear hall element 31 is usually not more than 85 degrees, while the temperature of the heat-preserving cover 14 can exceed 100 degrees during cooking, the pressure detecting element 3 in the application can respond to the deformation of the bottom wall 142 through the arrangement of the lever 33, and the linear hall element 31 can be arranged at the outer side of the heat-preserving cover 14 and far away from the bottom wall 142, so that the failure of the linear hall element 31 due to the influence of high temperature can be avoided.

In the present embodiment, the side wall 142 is tapered, and in order to avoid the linear hall element 31 from being affected by the high temperature of the side wall 142, the horizontal projection of the linear hall element 31 is designed to be located outside the horizontal projection of the heat-insulating cover 14, so that the high temperature of the heat-insulating cover 14 can be effectively avoided, and the service life of the linear hall element 31 can be prolonged.

The pressure detecting element 3 further includes a fixing rod 35, and the fixing rod 35 is fixed to the side wall 141 of the heat retaining cover 14 and extends downward beyond the bottom wall 142. The middle section of the lever 33 is pivotally connected with the end of the fixed rod 35, a pivot point 333 is formed at the connection position, and the lever 33 can rotate around the pivot point 333. The fixing rod 35 is preferably a metal rod, and is fixed to the side wall 141 of the heat-insulating cover 14 by welding, riveting or screwing; high temperature resistant plastic may be used and fixed to the sidewall 141 of the heat-insulating cover 14 by screws. The fixing rod 35 is adopted to pivot the lever 33, so that the structure is simple.

The inner end 331 is provided with the abutting head 34 contacting with the bottom wall 142, and the distance between the magnetic element 32 and the pivot point 333 is greater than the distance between the abutting head 34 and the pivot point 333, so that in the vertical direction, the displacement of the magnetic element 32 is greater than the displacement of the abutting head 34, which is equivalent to enlarging the deformation of the bottom wall 142 of the heat-insulating cover 14, and by adopting the design, the magnetic field change of the linear hall element 31 can be more easily caused, and the pressure value in the cooking cavity 10 can be accurately obtained in real time.

In the present embodiment, the lever 33 of the pressure detecting element 3 is preferably a metal sheet. The contact 34 is a metal post riveted to the lever 33, and the top of the contact 34 is spherical and in point contact with the bottom wall 142, and the contact 34 is provided separately and has a spherical top to ensure contact with the bottom wall 142.

In the present embodiment, the horizontal distance of the interference head 34 from the central line of the heat-insulating cover 14 is less than 3/4 of the radius of the bottom wall 142 of the heat-insulating cover 14, that is, the interference head 34 cannot be too close to the junction of the bottom wall 142 and the side wall 141, because the deformation of the bottom wall 142 close to the side wall 141 is small, the accommodation leads to inaccurate pressure measurement of the pressure detecting element 3.

The pot body 1 further comprises a fixing plate 36 mounted to the housing 13, the fixing plate 36 horizontally extends toward the heat-insulating cover 14, and the linear hall element 31 is disposed on the fixing plate 36 in such a manner as to face the magnetic element 32. In this embodiment, the linear hall element 31 is disposed on the bottom surface of the fixing plate 36, and the linear hall element 31 is positioned by the fixing plate 36, so that the structure is simple and the manufacture is convenient. The size of the linear Hall element 31 is about 5mm 1mm, the volume is small, and the setting is convenient. The fixing plate 36 is preferably a metal plate with high strength, and is not deformed after long-term use, so as to ensure that the position of the linear hall element 31 is not changed, and ensure accurate pressure measurement. Similarly, the lever 33 is preferably made of a metal material that is resistant to high temperature and deformation, so as to ensure that the position of the magnetic element 32 is unchanged in a natural state.

The pressure measuring process of the cooking appliance will be described briefly below, the lid 2 is covered on the pot body 1 after the inner pot 16 is placed in the pot, so that the lid 2 and the pot body 1 form a closed cooking cavity 10, the cooking is performed by continuously heating with the aid of the heating device 15, meanwhile, high-pressure gas is generated in the cooking cavity 10 due to boiling, the lid 2 cannot deform due to the fact that the lid 2 is provided with the inner pot cover 20 with high strength, and then the high-pressure gas pushes the inner pot 16 downwards and transmits pressure through the heating device 15 to enable the bottom wall 142 of the heat-insulating cover 14 to deform downwards. When the bottom wall 142 deforms downwards, the contact 34 is abutted to drive the inner end 331 of the lever 33 to move downwards, the corresponding magnetic element 32 at the outer end 332 of the lever 33 moves upwards and moves towards the linear hall element 31, the magnetism becomes strong, the output voltage of the linear hall element 31 becomes large, the change single chip microcomputer detects a specific change value, and then the pressure value in the cooking cavity 10 is obtained in real time.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

Terms such as "upper," "lower," "left," "right," "front," "back," "thickness," "radial," "axial," and the like, used herein to denote relative spatial positions, are used for ease of description to describe one feature's relationship to another feature as illustrated in the figures, and are not limited to one position or one spatial orientation. It will be understood that the spatially relative positional terms may be intended to encompass different orientations than those shown in the figures depending on the product presentation position and should not be construed as limiting the claims. In addition, the descriptor "horizontal" as used herein is not entirely equivalent to allowing an angular tilt along a direction perpendicular to the direction of gravity.

The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items.

It should be noted that when an element is referred to as being "secured …" to another element, it can be directly on the surface of the other element or can be spaced apart from the surface of the other element. The terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected or detachably connected or integrated; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It should be understood that the use of "first," "second," and similar terms in the description and claims do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. "plurality" or "multiple layers" and the like mean two or more.

The cooking utensil of the present application is only a preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a cooking utensil, includes the pot body (1), pot body (1) is including heat preservation cover (14) that are equipped with lateral wall (141) and diapire (142), its characterized in that: the pot body (1) still includes pressure measurement element (3), pressure measurement element (3) are including linear hall element (31), magnetic element (32) and lever (33), lever (33) are equipped with inner (331) and outer end (332), inner (331) with diapire (142) are contradicted, magnetic element (32) set up on outer end (332), linear hall element (31) along vertical direction with magnetic element (32) interval sets up.

2. The cooking appliance of claim 1, wherein: the linear Hall element (31) is located directly above the magnetic element (32).

3. The cooking appliance of claim 1, wherein: the horizontal projection of the linear Hall element (31) is positioned outside the horizontal projection of the heat-preserving cover (14).

4. The cooking appliance of claim 1, wherein: the pressure detection element (3) further comprises a fixing rod (35), the fixing rod (35) is fixed to the side wall (141) and extends downwards, and the middle section of the lever (33) is in pivot connection with the fixing rod (35) to form a pivot point (333).

5. The cooking appliance of claim 4, wherein: the inner end (331) is provided with a contact stopper (34) abutting against the bottom wall (142), and the distance between the magnetic element (32) and the pivot point (333) is greater than the distance between the contact stopper (34) and the pivot point (333).

6. The cooking appliance of claim 1, wherein: the inner end (331) is provided with a contact (34) abutting against the bottom wall (142), and the contact (34) is riveted on the inner end (331) and is provided with a spherical top.

7. The cooking appliance of claim 6, wherein: the horizontal distance of the abutting head (34) from the center line of the heat-preserving cover (14) is smaller than 3/4 of the radius of the bottom wall (142).

8. The cooking appliance of claim 1, wherein: the pot body (1) further comprises a shell (13) positioned outside the heat-insulating cover (14) and a fixing plate (36) mounted on the shell (13), the fixing plate (36) extends horizontally towards the heat-insulating cover (14), and the linear Hall element (31) is arranged on the fixing plate (36) in a mode of facing the magnetic element (32).

9. The cooking appliance of claim 1, wherein: the cooking appliance is also provided with a control part electrically connected with the linear Hall element (31).

10. The cooking appliance of claim 1, wherein: the cooking utensil is an electric pressure cooker, the pot body (1) is further provided with a middle plate (11), a base (12), a heating device (15) and an inner pot (16), the middle plate (11) is annular and is located at the top of the pot body (1), the base (12) is connected to the bottom of the middle plate (11), the pot body (1) further comprises a shell (13), the shell (13) is arranged between the middle plate (11) and the base (12), a heat-preservation cover (14) is located in an accommodating space formed by the middle plate (11), the base (12) and the shell (13) together, and the heating device (15) is arranged between the bottom of the heat-preservation cover (14) and the bottom of the inner pot (16).

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