CN213872795U

CN213872795U - Electric heating cooking utensil

Info

Publication number: CN213872795U
Application number: CN202022649304.4U
Authority: CN
Inventors: 朱泽春; 徐磊阳
Original assignee: Hangzhou Joyoung Household Electrical Appliances Co Ltd
Current assignee: Hangzhou Joyoung Household Electrical Appliances Co Ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-08-03
Anticipated expiration: 2030-11-16

Abstract

The utility model discloses an electrical heating cooking utensil has solved among the prior art when electrical heating cooking utensil uses in the pan hot water juice in a large number of overflows and has leaded to the dirty technical problem of mesa, the utility model provides an electrical heating cooking utensil, including the casing and locate control panel and heating device in the casing, the casing is including the panel that is used for placing the pan, still be equipped with in the casing with the conducting strip that the control panel electricity is connected, the conducting strip is located the back of panel is around in the pan outside, the control panel basis the capacitance value control of conducting strip heating device's heating state.

Description

Electric heating cooking utensil

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electrical heating cooking utensil technical field especially relates to an electrical heating cooking utensil.

[ background of the invention ]

Electric heating cooking utensil includes the casing and locates the electric heating device in the casing, the casing is including the panel that is used for placing the pan, in operation, electric heating device heats the hot water juice in order to cook the pan to the pan, can have the phenomenon that spills over the pan and drip at the panel after the hot water juice boiling in the pan, if the user is not nursed at electric heating cooking utensil, then hot water juice can constantly spill over and cause the dirty and hot water juice volume in the pan that causes the mesa to reduce greatly, user's experience has been reduced from this.

[ Utility model ] content

The utility model aims to solve the technical problem that overcome prior art not enough and provide an electrical heating cooking utensil, can in time detect out the hot water juice excessive to the operating condition through control panel control electric heater unit is with the boiling that reduces hot water juice, and then reduces hot water juice excessive.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model provides an electrical heating cooking utensil, includes the casing and locates control panel and heating device in the casing, the casing is including the panel that is used for placing the pan, still be equipped with in the casing with the conducting strip that the control panel electricity is connected, the conducting strip is located the back of panel centers on in the pan outside, the control panel basis the capacitance value control of conducting strip heating device's heating state.

Further, the conductive sheet is a conductive layer plated on the back surface of the panel.

Furthermore, a plurality of elastic supporting assemblies are arranged in the shell, and the elastic supporting assemblies upwards support the conducting strips so that the conducting strips are tightly attached to the back of the panel.

Furthermore, the shell comprises a base and an upper cover fixed on the base, the elastic support assembly comprises a support sheet and an elastic piece arranged on the support sheet, the support sheet and the upper cover are integrally formed, and the elastic piece upwards supports the conductive sheet.

Furthermore, the supporting sheet is provided with a positioning column, and the elastic piece is sleeved on the positioning column.

Furthermore, the casing includes the base and fixes upper cover on the base, the elastic support subassembly includes the support column, locates fixed plate on the support column and locates elastic component on the fixed plate, the support column with base integrated into one piece, elastic component upwards supports the conducting strip.

Further, the conducting strip is an annular strip.

Furthermore, the number of the conducting strips is multiple, and the conducting strips are concentrically distributed.

Furthermore, the number of the conducting strips is multiple, and the conducting strips are circumferentially arranged on the back face of the panel at intervals.

Further, the conducting strip is semi-annular, and the opening of conducting strip sets up towards the front.

The utility model has the advantages that:

the utility model provides a conducting strip forms a polar plate of capacitive sensor, and the panel forms the dielectric, and outside air or hot water juice form another polar plate of capacitive sensor, is C ═ epsilon according to parallel plate electric capacity formula_rs/4 π kd, where ε_rThe dielectric constant is related to the material of the two parallel plates, s is the relative area of the two parallel plates, k is the constant of the electrostatic force, and d is the distance between the two parallel plates. When s and d are fixed values, the material of one polar plate is unchanged, and after the material of the other polar plate is changed, the capacitance C is also changed, when the utility model is applied, when soup is present at the position of the panel corresponding to the conducting strip, namely the material of the other polar plate is changed, the capacitance C is also changed, therefore, the control panel can judge whether the soup overflows or not according to the capacitance C, if the soup does not overflow, the control panel controls the electric heating device to keep the current heating state; if judge that the hot water juice is excessive, control panel control electric heater unit pause heating or clearance heating or with low-power heating to reduce the boiling of hot water juice, and then the continuation of the hot water juice of effectively avoiding spills over, avoided the dirty of mesa and the reduction of hot water juice in the pan from this, promoted user's use and experienced.

The conductive sheet is a conductive layer plated on the back surface of the panel. The electroplating process is simple and reliable, and no new process and later fixing are needed, so that the manufacturing cost is effectively reduced.

A plurality of elastic supporting assemblies are arranged in the shell, and the elastic supporting assemblies upwards support the conducting strips so that the conducting strips are attached to the back face of the panel. By the design, the conductive layer can be prevented from falling off and other destructive faults after dry burning, and the continuous usability of the conductive sheet is improved; when the conducting strip is made of a metal sheet which is processed and formed independently, signal acquisition errors caused by poor electroplating can be avoided, and the measurement accuracy is improved; meanwhile, the situation that the conducting strip cannot be tightly attached to the panel due to installation errors or later-stage shell deformation when the conducting strip is fixed in other fixing modes is effectively avoided.

The supporting sheet is provided with a positioning column, and the elastic piece is sleeved on the positioning column. So design, the equipment that can be convenient for the elastic component is fixed, can guide the elastic component again to take place vertical flexible deformation in order to support the conducting strip, and then improved the supporting effect to the conducting strip for the back of panel can be hugged closely to the conducting strip.

The conducting plate is a ring-shaped plate. Due to the design, the dead angle of measurement can be avoided, and the detection accuracy is improved.

The quantity of conducting strip is a plurality of, and a plurality of conducting strips are the concentric distribution. By the design, the coverage area of the conducting strip can be increased, so that the capacitance change can be collected more easily, the measurement is more accurate, and the safety is higher.

The quantity of conducting strip is a plurality of, and a plurality of conducting strips circumference interval is located the back of panel. By the design, the material cost of the conducting plate can be reduced, so that the manufacturing cost is reduced.

The conducting strip is semi-annular, and the opening of conducting strip sets up forward. By the design, the material cost of the conducting plate can be reduced, so that the manufacturing cost is reduced; but also avoid interfering with the operation panel in the shell.

These features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.

[ description of the drawings ]

The invention will be further explained with reference to the drawings:

fig. 1 is a cross-sectional view of an electric heating cooking device according to a first embodiment of the present invention;

fig. 2 is a schematic structural view of a conductive sheet disposed on the back surface of a panel according to a first embodiment of the present invention;

fig. 3 is a sectional view of an electric heating cooking device according to a second embodiment of the present invention;

FIG. 4 is an enlarged view of part A of FIG. 3;

fig. 5 is an exploded view of the upper cover, the elastic support member and the conductive sheet according to the second embodiment of the present invention;

fig. 6 is an exploded schematic view of a base and an elastic support assembly according to a third embodiment of the present invention.

Reference numerals:

100. a housing; 110. a base; 120. an upper cover; 130. a panel; 200. an electric heating device; 300. a conductive sheet; 400. a lead wire; 500. an elastic support member; 510. a support sheet; 511. a positioning column; 520. an elastic member; 530. a support pillar; 540. and (7) fixing the plate.

[ detailed description ] embodiments

The utility model provides an electrical heating cooking utensil, control panel and heating device in including the casing and locating the casing, the casing is including the panel that is used for placing the pan, still be equipped with in the casing with the conducting strip that the control panel electricity is connected, the conducting strip is located the back of panel is around in the pan outside, the control panel basis the capacitance value control of conducting strip heating device's heating state.

The utility model provides a conducting strip forms a polar plate of capacitive sensor, and the panel forms the dielectric, and outside air or hot water juice form capacitive sensor's another polar plate, is C ═ epsilon rs 4 pi kd according to parallel plate capacitance formula, and wherein epsilon r is that dielectric constant is relevant with two parallel plate materials, s is two parallel relative areas, k is the electrostatic force constant, d is the distance between two parallel plates. When s and d are fixed values, the material of one polar plate is unchanged, and after the material of the other polar plate is changed, the capacitance C is also changed, when the utility model is applied, when soup is present at the position of the panel corresponding to the conducting strip, namely the material of the other polar plate is changed, the capacitance C is also changed, therefore, the control panel can judge whether the soup overflows or not according to the capacitance C, if the soup does not overflow, the control panel controls the electric heating device to keep the current heating state; if judge that the hot water juice is excessive, control panel control electric heater unit pause heating or clearance heating or with low-power heating to reduce the boiling of hot water juice, and then the continuation of the hot water juice of effectively avoiding spills over, avoided the dirty of mesa and the reduction of hot water juice in the pan from this, promoted user's use and experienced.

The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Example one

Referring to fig. 1 to 2, the electric heating cooking appliance in the present embodiment is an induction cooker, an electric ceramic cooker, a heat retainer, an infrared oven, or the like, and includes a housing 100, an electric heating device 200, and a control board (not shown in the drawings), wherein the electric heating device 200 and the control board are installed in the housing 100, and the electric heating device 200 is an electromagnetic wire coil, a heating coil, or a heating film; casing package 100 includes base 110, upper cover 120 and the panel 130 that is used for placing the pan, upper cover 120 passes through screw or joint to be fixed on base 110, be equipped with the installing port that corresponds electric heater unit 200 and set up on upper cover 120, panel 130 covers the installing port and bonds and fixes on upper cover 120, still be equipped with conducting strip 300 in the casing 100 of this embodiment, conducting strip 300 passes through lead wire 400 and is connected with the control panel electricity, conducting strip 300 is for electroplating in the conducting layer at the back of panel, adopt electroplating process simple and reliable, and need not to increase new process and later stage fixed, consequently, manufacturing cost has effectively been reduced. The conducting strip 300 of the present embodiment surrounds the outside of the pot, so that the soup in the pot can directly drip on the front surface of the panel 130 corresponding to the conducting strip 300 after overflowing.

The conductive sheet 300 in this embodiment forms one plate of the capacitive sensor, the panel 130 forms the dielectric, and the ambient air or the cooking liquor forms the other plate of the capacitive sensor, according to the parallel plate capacitance formula C ═ epsilon_rs/4 π kd, where ε_rThe dielectric constant is related to the material of the two parallel plates, s is the relative area of the two parallel plates, k is the constant of the electrostatic force, and d is the distance between the two parallel plates. When s and d are fixed values, the material of one plate is unchanged, and the material of the other plate is changed, the capacitance C is also changed, when the method is applied to the embodiment, when the position of the panel 130 corresponding to the conducting strip 300 has soup, that is, the material of the other plate is changed, the control board can judge whether the soup overflows or not according to the capacitance C, and if the soup does not overflow, the control board controls the electric heating device 200 to keep the current heating state; if judge that the hot water juice is excessive, control panel control electric heating device 200 pause heating or clearance heating or with low-power heating to reduce the boiling of hot water juice, and then the continuation of the hot water juice of effectively avoiding spills over, avoided the dirty of mesa and the reduction of hot water juice in the pan from this, promoted user's use and experienced.

Preferably, the conductive sheet 300 in this embodiment is an annular metal conductive layer, so that a measurement dead angle can be avoided, thereby improving the detection accuracy.

In addition, the number of the conductive sheets 300 in the embodiment is plural, the plurality of conductive sheets 300 are concentrically distributed, and each conductive sheet 300 is electrically connected to the control board through the lead 400. By the design, the coverage area of the conducting strip 300 can be increased, so that the capacitance change is collected more easily, the measurement is more accurate, and the safety is higher.

Example two

As shown in fig. 3 to 5, compared with the first embodiment, the difference of the present embodiment is that a plurality of elastic support assemblies 500 are disposed in the housing 100 and circumferentially distributed at intervals around the mounting opening, each elastic support assembly 500 includes a support sheet 510 and an elastic member 520 disposed on the support sheet 510, each elastic member 520 is a spring or a high temperature resistant silicone sleeve, the support sheets 510 and the upper cover 120 are integrally formed, that is, the support sheets are formed by radially extending inward from the inner ring side of the upper cover 120, and the elastic members 520 are press-fitted between the conductive sheet 300 and the support sheets 510 to upwardly support the conductive sheet 300, so that the conductive sheet 300 is tightly attached to the back of the panel, thereby preventing the plated conductive layer from falling off after dry burning, and improving the continuous usability of the conductive sheet 300.

In addition, the conducting strip 300 can also be a metal strip which is processed and formed separately, such as an iron strip, a copper strip and the like, so that signal acquisition errors caused by poor electroplating can be avoided, and the measurement accuracy is improved; finally, the elastic supporting assembly 500 supports the conducting strip 300 upwards so that the conducting strip 300 is tightly attached to the back of the panel, and the situation that the conducting strip 300 cannot be tightly attached to the panel due to installation errors or deformation of the later-stage shell 100 when the conducting strip 300 is fixed in other fixing modes can be effectively avoided, so that the accuracy of signal acquisition is improved.

Preferably, the supporting sheet 510 in this embodiment is provided with a positioning column 511, and the elastic member 520 is sleeved on the positioning column 511. So design, can be convenient for the equipment of elastic component 520 fixed, can guide elastic component 520 again to take place vertical flexible deformation in order to support conducting strip 300, and then improved the support effect to conducting strip 300 for the back of panel can be hugged closely to conducting strip 300.

Of course, it is understood that in other embodiments of the present invention, the support sheet may be integrally formed with the support of the electric heating device.

EXAMPLE III

As shown in fig. 6, compared with the embodiment, the difference of the embodiment is that the elastic support assembly 500 includes a support pillar 530, a fixing plate 540 and an elastic member 520, wherein the support pillar 530 is integrally formed with the bottom wall of the base 110 and extends upward, the fixing plate 540 is provided with an insertion hole, the support pillar 530 is provided with a protrusion, the fixing plate 540 is fixed on the support pillar 530 through the insertion and fitting of the insertion hole and the protrusion, the elastic member 520 is adhered or clamped on the fixing plate 540, and the elastic member 520 is press-fitted between the conductive sheet 300 and the fixing plate 540 to support the conductive sheet 300 upward, so that the conductive sheet 300 is tightly attached to the back of the panel.

It can be understood that, in other embodiments of the present invention, in order to save the material cost of the conductive sheets and reduce the manufacturing cost, the number of the conductive sheets is multiple, the multiple conductive sheets are circumferentially arranged on the back surface of the panel at intervals, and each conductive sheet is electrically connected with the control panel through a lead; or, the conducting strip is the half ring shape, and the opening of conducting strip sets up before towards, and so design can also avoid taking place to interfere with the operating panel in the casing.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims

1. The utility model provides an electrical heating cooking utensil, includes the casing and locates control panel and heating device in the casing, the casing is including the panel that is used for placing the pan, its characterized in that, still be equipped with in the casing with the conducting strip that the control panel electricity is connected, the conducting strip is located the back of panel centers on in the pan outside, the control panel basis the capacitance value control of conducting strip heating device's heating state.

2. The electric cooking appliance of claim 1, wherein said conductive sheet is a conductive layer plated on the back surface of said panel.

3. An electrically heated cooking appliance as claimed in claim 1 wherein a plurality of resilient support members are provided within said housing, said resilient support members supporting said conductive sheet upwardly so that said conductive sheet abuts against the back of said panel.

4. An electrically heated cooking utensil as claimed in claim 3 wherein the housing includes a base and a top cover secured to the base, the resilient support assembly including a support sheet integrally formed with the top cover and a resilient member disposed on the support sheet, the resilient member supporting the conductive sheet upwardly.

5. An electrically heated cooking utensil as claimed in claim 4 wherein the support piece is provided with locating posts and the resilient member is fitted over the locating posts.

6. An electrically heated cooking utensil as claimed in claim 3 wherein the housing includes a base and a top cover secured to the base, the resilient support assembly includes a support post, a securing plate on the support post, and a resilient member on the securing plate, the support post being integrally formed with the base, the resilient member supporting the conductive strip upwardly.

7. An electrically heated cooking appliance as claimed in any of claims 1 to 6 wherein said conductive sheet is an annular sheet.

8. An electrically heated cooking utensil as claimed in claim 7 wherein the number of conducting strips is plural, the plurality of conducting strips being arranged concentrically.

9. An electrically heated cooking utensil as claimed in any one of claims 1 to 6 wherein there are a plurality of electrically conductive strips provided circumferentially spaced on the back of the panel.

10. An electric heating cooking appliance as claimed in any one of claims 1 to 6 wherein said conductive sheet is semi-annular, with the openings of said conductive sheet facing forwardly.