WO2019128988A1

WO2019128988A1 - Intelligent electromagnetic heating kettle

Info

Publication number: WO2019128988A1
Application number: PCT/CN2018/123494
Authority: WO
Inventors: 陈胜强; 黄家厚; 唐宇前; 叶立; 邓炎
Original assignee: 佛山市顺德区米创智能科技有限公司
Priority date: 2017-12-28
Filing date: 2018-12-25
Publication date: 2019-07-04
Also published as: CN107912978A

Abstract

Disclosed is an intelligent electromagnetic heating kettle. The intelligent electromagnetic heating kettle comprises an electromagnetic heating base (1), a glass kettle body (2) and a controller, and further comprises a side leaning component (3), wherein a water level sensor (4) and an infrared temperature sensor (5) are arranged in the side leaning component (3), the water level sensor (4) and the infrared temperature sensor (5) are respectively connected to the controller, and the controller can be used for controlling the working state of the electromagnetic heating base (1) according to a temperature condition of the glass kettle body (2) that is detected by the infrared temperature sensor (5) and a water level condition detected by the water level sensor (4). With the intelligent electromagnetic heating kettle, the temperature condition in the kettle can be accurately detected, and the water level condition in the kettle can be accurately detected by virtue of rationally arranging the water level sensor (4), so as to avoid a dangerous consequence caused by dry burning.

Description

A smart electromagnetic heating kettle

Technical field

The present application relates to the field of home appliance technology, and in particular to an electromagnetic heating kettle with a temperature sensor and a water level sensor.

Background technique

At present, in the prior art, the electromagnetic heating and the hot water bottle are provided with an anti-dry structure or an anti-overflow structure, in order to prevent the boiling of the food in the container during the heating process of the electromagnetic heating kettle, or dry burning phenomenon, thereby improving the safety of use. In particular, the electromagnetic heating pot of the all-glass pot body covered with the electromagnetic induction heating layer on the bottom of the pot, the all-glass heating pot on the market with the bottom of the pot and the electromagnetic induction heating layer is only matched and sold with the traditional household induction cooker, and is not formed. The integrated electromagnetic safety kettle with safety performance and safety requirements is available for sale. The electromagnetic heating kettle of the all-glass pot body of the such water-free sensing device which is covered with the electromagnetic induction heating layer is prone to dry burning and frying in an unattended working state.

Moreover, in the prior art, the electromagnetic heater and the hot water bottle are provided with a temperature detector or a device for detecting the temperature to detect the temperature of the heated dish, thereby obtaining the temperature of the food or water in the vessel, and the user heats the electromagnetic after the temperature is measured. The kettle is tempered, the structure is inconvenient to use, the temperature needs to be adjusted by the human hand, and the intelligent setting cannot be achieved, and the structure of the temperature detector is arranged on the surface of the electromagnetic heating kettle and the heater is touched, and the temperature detector is often close to The heat source is too close, causing inaccurate data on the detected temperature and resulting in a shortened life.

In order to prevent the boiling of the food in the container during the heating process and the dry burning phenomenon, and to more accurately measure the temperature of the glass body, an intelligent electromagnetic heating with a water level sensor and a temperature sensor is provided. kettle.

Summary of the invention

In order to solve the above problems, the present application provides an electromagnetic heating kettle with a water level sensor and a temperature sensor.

In order to achieve the above application purpose, the technical solution adopted by the present application is as follows:

An intelligent electromagnetic heating kettle comprises an electromagnetic heating base, a glass kettle body and a controller, wherein the bottom of the glass kettle body is provided with an electromagnetic heating layer cooperating with the electromagnetic heating base, and the glass kettle body is placed on the electromagnetic Heating the base, wherein: further comprising a side spacer, wherein a water level sensor and an infrared temperature sensor are disposed in the side spacer, the water level sensor and the infrared temperature sensor are respectively connected to the controller, The controller may control an operating state of the electromagnetic heating base according to a temperature condition of the glass jug detected by the infrared temperature sensor and a water level condition detected by the water level sensor.

When the water level sensor fails to sense that the liquid (or liquid food) in the kettle reaches a certain amount, the controller will control the electromagnetic heating base to stop heating, thereby achieving intelligent anti-dry burning. Preferably, the water level sensor is disposed at a height of 5% to 40% of the height direction of the glass jug from the bottom of the kettle to the open end. Through the above scheme, the water level sensor is set in a reasonable height range, which can more effectively avoid dry burning and can improve the control precision and the service life of the water level sensor. Applicants have found through a large number of experiments that if the water level sensor is placed too close to the bottom of the pot (less than 5% of the height of the pot body), the sensing error is easy to occur; and through a large number of statistics, the user sometimes uses the heater. If the water level sensor is not set too high (greater than 40% of the height of the body), the heating base will not work when the water level does not reach the above water level sensor position, affecting the user's use.

When the infrared temperature sensor detects that the liquid temperature in the kettle is higher than the set upper limit temperature through the side wall of the kettle body, the controller controls the electromagnetic heating base to stop heating, or when the infrared temperature sensor detects that the temperature of the liquid in the kettle is lower than When the lower limit temperature is set, the controller controls the electromagnetic heating base to reheat, thereby achieving temperature control and constant temperature heating. Preferably, the infrared temperature sensor is disposed at a height of 5% to 40% of a height direction of the glass jug from the bottom of the kettle to the open end. Through the above scheme, the infrared temperature sensor is set in a reasonable height range, which can effectively avoid dry burning and can improve the temperature measurement accuracy and the service life of the temperature probe. Applicants have found through a large number of experiments that if the infrared temperature sensor is placed too close to the bottom of the pot (less than 5% of the height of the pot body), due to the heating effect of the heating layer on the bottom of the pot, temperature measurement errors are likely to occur; According to the statistics, the user sometimes does not fill up the kettle body when using the heater. If the infrared temperature sensor is set too high (greater than 40% of the height of the kettle body), the temperature measurement is inaccurate.

The infrared sensor 5 may be disposed above the water level sensor 4, or may be disposed below the water level sensor 4, or may be disposed in parallel with the water level sensor 4.

Further, the side spacer is disposed on an outer sidewall of the glass jug, and the infrared temperature sensor and the water level sensor are disposed in the side spacer and one end thereof and an outer side of the glass jug The wall is in contact with or close to, the lower end of the side member is provided with an upper coupler, and the electromagnetic heating base is provided with a lower coupler that cooperates with the upper coupler.

Further, the side spacer is a handle mounted on a sidewall of the outer surface of the glass jug, and the upper coupler includes an electrode contact disposed at a lower end of the handle. The use of the electrode contact is easier to position than the form of the pin and is not prone to oxidation, which helps to increase its service life.

The outer wall of the bottom of the kettle body is provided with a support pad, and the support pad forms a heat insulation distance between the kettle body and the base. Because of the high height of the support pad, the insulation distance between the electromagnetic heating layer and the electromagnetic heating 5 is left. The size of the heat insulation distance must be smaller than the effective electromagnetic induction distance between the electromagnetic heating layer and the coil disk, so when electromagnetic heating After the layer is heated at a high temperature, the heat will not accumulate in a large amount on the panel of the electromagnetic heating base, but will be lost in the heat insulation distance, avoiding the heat concentrated on the panel of the electromagnetic heating seat, thereby protecting the heat and protecting the use. Sex.

An annular mounting groove is circumferentially disposed on the bottom outer wall of the base, and the support pad is fixedly coupled in the annular mounting groove. As a preferred solution, the annular silicone ring is integrally mounted on the bottom of the vessel body, so that the appearance of the product looks more compact and compact, and the annular silicone ring can play a decorative role and form a whole body with the vessel body. To make the appearance more beautiful.

A metal fixing ring is circumferentially arranged on the outer wall of the kettle body, and the two ends of the metal fixing ring are formed in an isolated connection by an insulator. Specifically, the two ends of the metal fixing ring are formed in an isolated connection through the insulator, so as to avoid heat generation in the electromagnetic heating and the metal fixing ring in the electromagnetic heating, and the user is prevented from being burnt when using the kettle body.

An insulator is connected between the two ends of the metal fixing ring.

The side spacers are in the form of a sheet and extend from the electromagnetic heating base in a height direction. More preferably, the infrared temperature sensor and the water level sensor are disposed in the side spacers and are disposed at a height of 5% to 25% of a height direction of the glass jug from the bottom of the kettle to the open end. Since the infrared temperature sensor and the water level sensor are disposed in the side spacer extending from the base in the height direction, the higher the infrared temperature sensor and the water level sensor are disposed, the longer the side spacer is required. It is easy to cause material waste, and the side spacers are too long, which is not conducive to the positioning of the glass pot body. It has been found that the infrared temperature sensor and the water level sensor are disposed in the side spacers and are disposed at a height of 5% to 25% of the height direction of the glass jug from the bottom of the kettle to the open end. A reasonable range.

Further, the side spacers are curved and extend from the electromagnetic heating base in a height direction. More preferably, the infrared temperature sensor and the water level sensor are disposed in the side spacers and are disposed at a height of 5% to 25% of a height direction of the glass jug from the bottom of the kettle to the open end. Preferably, the side spacers are half round side spacers.

Further, the side spacers are annular and extend from the electromagnetic heating base in a height direction. More preferably, the infrared temperature sensor and the water level sensor are disposed in the side spacers and are disposed at a height of 5% to 25% of a height direction of the glass jug from the bottom of the kettle to the open end.

Compared with the prior art, the present application achieves a beneficial technical effect: the water level sensor is disposed on the outer side wall of the glass pot body by using the siderest member, which can effectively sense the water level in the glass pot body, and can effectively prevent the overflow after the liquid is boiled. The infrared temperature sensor is disposed on the outer side wall of the glass kettle body to ensure the temperature measurement effect and the service life. The bottom of the glass pot body is provided with a ring-shaped silicone ring, which can prevent the heat from concentrating on the panel of the electromagnetic heating seat, and also avoids the electromagnetic heating layer directly contacting the panel of the electromagnetic heating base, thereby preventing the scraping and protecting the electromagnetic heating layer. Extend its service life. The two ends of the metal fixing ring are formed into an isolated connection through the insulator, so as to avoid the electromagnetic field and the metal fixing ring generating a circuit to generate heat during electromagnetic heating, and the user is prevented from being burnt when using the body.

DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are Some embodiments of the present application can also obtain other drawings based on these drawings without departing from the prior art by those skilled in the art.

Figure 1 is a structural view of a smart electromagnetic heating kettle of the present application;

2 is a schematic view of a metal fixing ring of the present application;

3 is a schematic view of a smart electromagnetic heating kettle of the present application;

Figure 4 is a schematic view of the glass pot body of the present application;

Figure 5 is a schematic view of a glass pot body with a metal retaining ring of the present application;

Figure 6 is a structural view of the metal fixing ring of the present application;

Figure 7 is an exploded view of the smart electromagnetic heating kettle of the present application.

Detailed ways

The present application is further described below in conjunction with the accompanying drawings and embodiments:

As shown in FIG. 1, a new type of electromagnetic kettle includes an electromagnetic heating base 1, a glass jug 2, and a controller (not shown), and the bottom of the glass jug 2 is provided with the electromagnetic heating. The base is provided with an electromagnetic heating layer. The glass pot body 2 is placed on the electromagnetic heating base 1 , and a coil disc 6 is further disposed on the electromagnetic heating base 1 . The utility model further comprises a side spacer 3, on which the water level sensor 4 and the temperature sensor 5 are arranged, the water level sensor 4 and the infrared temperature sensor 5 are respectively connected to the controller, the controller The operating state of the electromagnetic heating base can be controlled according to the temperature condition of the glass jug detected by the infrared 5 temperature sensor and the water level condition detected by the water level sensor 4.

When the water level sensor 4 fails to sense that the liquid (or liquid food) in the pot reaches a certain amount, the controller will control the electromagnetic heating base to stop heating, thereby achieving intelligent anti-dry burning. Preferably, the water level sensor 4 is disposed at a height of 5% to 40% of the height direction of the glass jug from the bottom of the kettle to the open end. More preferably, the height of the water level sensor 3 is set. The glass jug 2 is at 5%, 10%, 15%, or 20% of the height direction from the bottom of the pot to the open end. Through the above scheme, the water level sensor 4 is set within a reasonable height range, which can more effectively avoid dry burning and can improve the control precision and the service life of the water level sensor. Applicants have found through a large number of experiments that if the water level sensor 4 is placed too close to the bottom of the pot (less than 5% of the height of the pot body), the inductive error is likely to occur; and through a large number of statistics, the user sometimes uses the heater. If the water level sensor is set too high (greater than 40% of the height of the body), the heating base will not work when the water level does not reach the above water level sensor position, affecting the user's use.

When the infrared temperature sensor 5 detects that the liquid temperature in the kettle is higher than the set upper limit temperature through the side wall of the kettle body 2, the controller controls the electromagnetic heating base to stop heating, or when the infrared temperature sensor 5 detects the liquid in the kettle When the temperature is lower than the set lower limit temperature, the controller controls the electromagnetic heating base to reheat, thereby achieving temperature control and constant temperature heating. Preferably, the infrared temperature sensor 5 is disposed at a height of 5% to 40% of the height direction of the glass jug 2 from the bottom to the open end. Through the above scheme, the infrared temperature sensor 5 is set within a reasonable height range, which can effectively avoid dry burning and can improve the temperature measurement accuracy and the service life of the temperature probe. Applicants have found through a large number of experiments that if the infrared temperature sensor 5 is placed too close to the bottom of the kettle (less than 5% of the height of the kettle body), the temperature measurement error is likely to occur due to the heating of the heating layer on the bottom of the kettle; A large number of statistics have found that the user sometimes does not fill up the kettle body when using the heater. If the infrared temperature sensor is set too high (greater than 40% of the height of the kettle body), the temperature measurement is inaccurate. The infrared sensor 5 may be disposed above the water level sensor 4, or may be disposed below the water level sensor 4, or may be disposed in parallel with the water level sensor 4.

This embodiment describes only the technical features different from the above embodiments, and the remaining technical features are the same. Referring to FIG. 1, the side spacers 3 are disposed on the outer side wall of the glass jug 2, and the water level sensor 4 and the infrared temperature sensor 5 are disposed on the side spacers 3. More preferably, the lower end of the side spacer 3 is provided with an upper coupler (not shown), and the electromagnetic heating base 1 is provided with a lower coupler (not shown) that cooperates with the upper coupler. More preferably, the side spacer 3 is a handle 10 mounted on an outer side wall of the glass jug 2, and the upper coupler includes an electrode contact disposed at a lower end of the handle 10. When the glass jug 2 is placed on the electromagnetic heating base 1, the upper coupler is in contact with the lower coupler to achieve electrical communication. The use of the electrode contact is easier to position than the form of the pin and is not prone to oxidation, which helps to increase its service life. The upper coupler and the lower coupler can adopt various matching forms such as snaps, so that they are easy to be positioned and matched.

More preferably, the infrared temperature sensor and the water level sensor are disposed in the side spacers and are disposed at a height of 5% to 25% of a height direction of the glass jug from the bottom of the kettle to the open end. Since the infrared temperature sensor 5 and the water level sensor 4 are disposed in the side members extending from the base in the height direction, the higher the infrared temperature sensor 5 and the water level sensor 4 are disposed, the side is required The longer the piece, the more likely to cause material waste, and the side spacers are too long, which is not conducive to the placement of the glass pot body. It has been found that the infrared temperature sensor 5 and the water level sensor 4 are disposed in the side spacers and are disposed at a height of 5% to 25% of the height direction of the glass jug from the bottom to the open end. It is a reasonable range.

The support wall 7 is disposed on the outer wall of the bottom of the kettle body, and the support pad 7 forms a heat insulation distance L between the kettle body 2 and the base 1, as shown in FIG. Since the support pad 7 is raised, the insulation distance between the electromagnetic heating layer and the electromagnetic heating seat is left, and the size of the heat insulation distance L must be smaller than the effective electromagnetic induction distance between the electromagnetic heating layer and the coil disk 6, so After the electromagnetic heating layer is heated at a high temperature, the heat will not accumulate in a large amount on the panel of the electromagnetic heating base, but will be lost in the heat insulating distance, and the heat is concentrated on the panel of the electromagnetic heating seat, thereby protecting the heat and protecting the surface. The safety is used; the support pad 7 is arranged at the bottom to avoid the electromagnetic heating layer directly contacting the panel of the electromagnetic heating seat, thereby preventing the scratching, protecting the electromagnetic heating layer and prolonging the service life thereof; the support pad 7 is a silica gel body; The preferred embodiment utilizes the soft rebound property of the silicone body to absorb shock absorption and protection; it can also be replaced by other soft materials. The support pad 7 is an annular silicone ring, and the bottom of the body 2 is provided with an annular mounting groove 11 in the circumferential direction. As shown in FIG. 4, an annular silicone ring is fixed on the annular mounting groove 11; as a preferred embodiment, the structure is used to form a ring. The silicone ring is integrally mounted on the bottom of the kettle body, which makes the appearance of the product look more compact and compact. The ring-shaped silicone ring not only plays a supporting role, but also plays a decorative role and is integrated with the body of the vessel to make the appearance more beautiful.

As shown in FIG. 5, a metal fixing ring 8 is circumferentially disposed on the outer wall of the kettle body. A schematic view of the metal fixing ring 8 is shown in FIG. 2, and a structural drawing of the metal fixing ring 8 is shown in FIG. The two ends are formed in an isolated connection by the insulator 9. Specifically, the two ends of the metal fixing ring 8 are formed in an isolated connection through the insulator 9, so that the electromagnetic field and the metal fixing ring generate a circuit to generate heat during electromagnetic heating, and the user is prevented from being burnt when using the body. Specifically, as shown in FIG. 7, the metal fixing ring 8 is disposed around the kettle body 2. The outer handle 10 is divided into two

portions

10a, 10b. The two

portions

10a, 10b of the handle 10 are fixedly connected to the insulator 9 through fasteners respectively. Mounted on the insulator 9, the handle 10 is fixedly disposed on the outer wall of the kettle body 2. The structure is simple and compact, and easy to install. The mounting handle 10 provides convenience for the user.

Example 2

The side spacers 3 are curved and extend from the electromagnetic heating base in a height direction. More preferably, the infrared temperature sensor 5 and the water level sensor 4 are disposed in the side spacer 3 and are disposed at a height of 5% to 25% of a height direction of the glass jug from the bottom of the kettle to the open end. Location. Preferably, the side spacers are half round side spacers. More preferably, in order to improve the temperature measurement accuracy, a plurality of infrared temperature sensors 5 may be uniformly disposed on the inner side wall of the semicircular side spacer, such as three or five infrared temperature sensors 5 (not shown) The controller can control the working state of the glass jug 2 according to the average temperature detected by the plurality of infrared temperature sensors 5 described above.

Example 3

The side spacers 3 are annular and extend from the electromagnetic heating base in a height direction. More preferably, the infrared temperature sensor 5 and the water level sensor 4 are disposed in the side spacers and are disposed at a height of 5% to 25% of the height direction of the glass jug from the bottom of the kettle to the open end. At the office. More preferably, in order to improve the temperature measurement accuracy, a plurality of infrared temperature sensors 5 may be uniformly disposed on the inner side wall of the annular side spacer 3, such as three or five infrared temperature sensors 5 (not shown). The controller can control the operating state of the glass jug 2 according to the average temperature detected by the plurality of infrared temperature sensors 5 described above.

Variations and modifications of the above-described embodiments may also be made by those skilled in the art in light of the above disclosure. Therefore, the present application is not limited to the specific embodiments disclosed and described above, and the modifications and variations of the application are intended to fall within the scope of the appended claims. In addition, although specific terms are used in the specification, these terms are only for convenience of description and do not impose any limitation on the application.

Claims

An intelligent electromagnetic heating kettle comprises an electromagnetic heating base, a glass kettle body and a controller, wherein the bottom of the glass kettle body is provided with an electromagnetic heating layer cooperating with the electromagnetic heating base, and the glass kettle body is placed on the electromagnetic The heating base is characterized in that: a side spacer is further included, and a water level sensor and an infrared temperature sensor are disposed in the side spacer, and the water level sensor and the infrared temperature sensor are respectively connected to the control The controller may control an operating state of the electromagnetic heating base according to a temperature condition of the glass jug body detected by the infrared temperature sensor and a water level condition detected by the water level sensor.
The electromagnetic heating kettle according to claim 1, wherein the side spacer is disposed on an outer side wall of the glass jug, and the infrared temperature sensor and the water level sensor are disposed on the side spacer And an end thereof is in contact with or close to an outer sidewall of the glass jug, and an upper coupler is disposed at a lower end of the side spacer, and a lower coupler matching the upper coupler is disposed on the electromagnetic heating base .
The electromagnetic heating kettle according to claim 2, wherein the side spacer is a handle mounted on a sidewall of the outer surface of the glass jug, and the upper coupler includes an electrode contact disposed at a lower end of the handle.
The electromagnetic heating kettle according to claim 1, wherein a support pad is disposed on an outer wall of the bottom of the kettle body, and the support pad forms an insulation distance between the kettle body and the base.
The electromagnetic heating kettle according to claim 4, wherein an annular mounting groove is circumferentially disposed on the bottom outer wall of the base, and the support pad is fixedly coupled in the annular mounting groove.
The electromagnetic heating kettle according to claim 1, wherein a metal fixing ring is circumferentially disposed on the outer wall of the kettle body, and both ends of the metal fixing ring are formed in an isolated connection by an insulator.
The electromagnetic heating bottle according to claim 6, wherein an insulator is connected between both ends of the metal fixing ring.
The electromagnetic heat exchanger according to claim 1, wherein the side spacers are in the form of a sheet and extend from the electromagnetic heating base in a height direction.
The electromagnetic heating bottle according to claim 1, wherein the side members are curved and extend from the electromagnetic heating base in a height direction.
The electromagnetic heating kettle according to claim 1, wherein the side spacers are annular and extend from the electromagnetic heating base in a height direction.