CN217744012U - Heating device, heating base and electric kettle - Google Patents

Abstract

The application discloses heating device, heating seat and insulating pot belongs to heating equipment's technical field to solve the inhomogeneous technical problem of present insulating pot heating effect. Wherein, heating device includes base plate and heating element, heating element includes first heating pipe and second heating pipe, first heating pipe and second heating pipe all set up in the base plate, first heating pipe is around locating the regional setting of predetermineeing, the second heating pipe is around locating first heating pipe setting, the first clearance at first heating pipe both ends and the second clearance dislocation set at second heating pipe both ends, thereby can make the heat that first heating pipe produced more high-efficient low conduction to the base plate on with the part that the second clearance corresponds, the heat that the second heating pipe produced also can more high-efficient low conduction to the base plate on with the part that first clearance corresponds, thereby make the temperature of each part of base plate is comparatively unanimous behind first heating pipe and the heating substrate of second heating pipe heating, the heating effect of treating the heating member of this application is also better like this.

Description

Heating device, heating base and electric kettle

Technical Field

The application belongs to the technical field of heating equipment, especially, relate to a heating device, heating seat and insulating pot.

Background

The electric kettle is a device for heating water, and the convenience of the electric kettle enables the electric kettle to gradually replace a traditional kettle in a life scene, and in the electric kettle, water is heated by arranging a heating component.

In the correlation technique, the heating component arrangement structure of electric kettle is single, and it is inhomogeneous to lead to heating component's the effect of generating heat, and then leads to electric kettle's the heating effect inhomogeneous.

SUMMERY OF THE UTILITY MODEL

This application aims at solving the inhomogeneous technical problem of insulating pot heating effect of present lampblack absorber to a certain extent at least. Therefore, the application provides a heating device, a heating seat and an electric kettle.

In a first aspect, an embodiment of the present application provides a heating device, including:

a substrate having a predetermined region; and

a heating assembly including a first heating pipe and a second heating pipe, the first heating pipe being disposed on the base plate and being disposed around the preset region, both ends of the first heating pipe having a space therebetween so that a first gap is provided between both ends of the first heating pipe,

the second heating pipe is arranged on the base plate and wound on the first heating pipe, the two ends of the second heating pipe are provided with a space so as to enable the two ends of the second heating pipe to be provided with a second gap,

the first gap and the second gap are arranged in a staggered mode.

In the heating device that this application embodiment provided, heating element sets up to including first heating pipe and second heating pipe, and the heating pipe has the thermal efficiency height, and advantage safe in utilization. First heating pipe and second heating pipe among the heating element all set up around the predetermined region of base plate for first heating pipe and second heating pipe can wind the predetermined regional evenly distributed of base plate, but the heat evenly distributed that first heating pipe and second heating pipe produced like this on the base plate. The second heating pipe is wound on the first heating pipe, and a first gap at two opposite ends of the first heating pipe and a second gap at two opposite ends of the second heating pipe are arranged in a staggered mode, so that part of the pipe body of the first heating pipe is opposite to the second gap of the second heating pipe, and part of the pipe body of the second heating pipe is opposite to the first gap of the first heating pipe, therefore, heat generated by the first heating pipe can be more efficiently conducted to the second gap, heat generated by the second heating pipe can also be more efficiently conducted to the first gap, and therefore the temperature of each part of the substrate is more consistent, and heating elements to be heated are more uniformly.

In some embodiments, the first gap and the second gap are located on opposite sides of the first heating tube.

The first gap and the second gap are arranged on the two opposite sides of the first heating pipe, so that the distance between the first gap and the second gap is relatively maximum, the mutual influence between the first gap and the second gap is relatively small, and the heat distribution of the substrate is more uniform.

In some embodiments, the projections of the first heating pipe and the second heating pipe on the substrate are both annular.

The first heating pipe and the second heating pipe are of arc structures, so that the processing is convenient, and the difficulty of the preparation process is reduced.

In some embodiments, the predetermined region is located at a center of the substrate.

The first heating pipe and the second heating pipe are arranged around the center of the base plate, so that the first heating pipe and the second heating pipe can be more uniformly distributed on the base plate.

In some embodiments, the number of the heating assemblies is plural, the plural heating assemblies are all disposed around the preset region, and the plural heating assemblies are sequentially disposed around the preset region.

Through setting up a plurality of heating element can be corresponding make the quantity of first heating pipe and second heating pipe be a plurality of, a plurality of heating element can make base plate temperature lifting rate faster to the base plate heating like this, and the temperature is higher.

In some embodiments, the first heating tube and the second heating tube are welded to the base plate.

The first heating pipe and the second heating pipe are fixed through welding, so that the first heating pipe and the second heating pipe are more stable and reliable after being fixed on the base plate.

In some embodiments, the substrate is made of glass or metal.

The base plate adopts metal or glass material to make the heat conductivity of base plate better to the effect of being heated of treating the heating member that makes and base plate contact is better.

In a second aspect, based on the above heating device, the embodiment of the present application further provides a heating base, which can be used for heating a kettle body of an electric kettle, and the heating base includes the above heating device.

In a third aspect, based on the above heating base, an embodiment of the present application further provides an electric kettle, which includes the above heating base.

After the heating seat is applied to the electric kettle, the electric kettle can heat water more efficiently, and all parts of the water can be boiled more efficiently.

In some embodiments, the electric kettle further comprises a kettle body disposed at a side of the base plate facing away from the first heating pipe and the second heating pipe.

The kettle body can be used for placing water to be heated, and the connection of the kettle body and the base plate can enable the heat of the base plate to be efficiently conducted into the kettle body.

In some embodiments, the electric kettle further comprises a base, a first electric connector and a second electric connector, wherein the base plate is arranged on the base, the first electric connector is arranged on the base, the second electric connector is arranged on the base plate, the first electric connector is electrically connected with the second electric connector, and the second electric connector is also electrically connected with the first heating pipe and the second heating pipe.

The first heating pipe and the second heating pipe on the substrate can generate heat in an electric conduction mode through the arrangement of the first electric connecting piece and the second electric connecting piece.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 shows a schematic view of a heating device disclosed in an embodiment of the present application;

FIG. 2 is a schematic view of a heating device disposed in a kettle body of an electric kettle disclosed in an embodiment of the present application;

FIG. 3 is a schematic diagram showing the overall structure of the electric kettle of FIG. 2;

fig. 4 shows a schematic view of the base of the electric kettle of fig. 2.

Reference numerals:

100-substrate, 110-predefined area, 120-second electrical connection,

200-first heating tube, 210-first gap,

300-second heating tube, 310-second gap,

400-a kettle body is arranged in the kettle body,

500-base, 510-first electrical connection.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indications in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "secured" are to be construed broadly, and thus, for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; 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. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The application is described below with reference to specific embodiments in conjunction with the following drawings:

example one

Referring to fig. 1 to 4, an embodiment of the present application discloses a heating apparatus including a substrate 100 and a heating element. The heating device can be applied to an electric kettle, but the heating device can also be applied to other heating equipment.

The substrate 100 is a base member of the heating apparatus of the present application, and the substrate 100 may provide a mounting base for at least some other components of the heating apparatus. The heating element may be disposed on the substrate 100 such that the heating element may be fixedly installed.

The heating assembly includes a first heating pipe 200 and a second heating pipe 300, the first heating pipe 200 and the second heating pipe 300 are both disposed on the base plate 100, the first heating pipe 200 and the second heating pipe 300 can generate heat after being energized, and the heat of the first heating pipe 200 and the second heating pipe 300 can be dissipated and conducted to the base plate 100, so that the air around the first heating pipe 200 and the second heating pipe 300 and the base plate 100 can be heated.

The member to be heated may be in contact with the first and second heating pipes 200 and 300, or in contact with the substrate 100. The substrate 100 has a preset area 110, and the first heating pipe 200 is wound around the preset area 110, so that the first heating pipe 200 is uniformly distributed on the periphery of the preset area 110 of the substrate 100, and the purpose of uniformly distributing heat generated by the first heating pipe 200 is achieved, and the heating element to be heated is more uniformly heated. The second heating pipe 300 is also disposed around the predetermined region 110 of the substrate 100, so that the second heating pipe 300 can be uniformly distributed on the periphery of the predetermined region 110 of the substrate 100, thereby achieving the purpose of uniformly distributing the heat generated by the second heating pipe 300, and further uniformly heating the member to be heated.

The second heating pipe 300 can be set to be arranged around the first heating pipe 200, so that the space of the surface of the substrate 100 occupied by the first heating pipe 200 and the second heating pipe 300 is relatively smaller, the installation area of the substrate 100 for installing the first heating pipe 200 and the second heating pipe 300 can be reduced, the panel of the substrate 100 is relatively smaller, and finally the structure of the heating device of the application can be more compact. Meanwhile, the second heating pipe 300 is wound around the first heating pipe 200, so that the first heating pipe 200 and the second heating pipe 300 do not interfere with each other, and thus both the first heating pipe 200 and the second heating pipe 300 can be set to have a longer length, so that the heat generation amount of the first heating pipe 200 and the second heating pipe 300 is larger.

The first heating pipe 200 and the second heating pipe 300 are both heating pipe members, and both ends of the first heating pipe 200 and the second heating pipe 300 are connected to the conductive circuit, so both ends of the first heating pipe 200 and the second heating pipe 300 cannot be closed, which may result in lower temperatures at both ends of the first heating pipe 200 and both ends of the second heating pipe 300. After the first heating pipe 200 is wound around the predetermined region 110, opposite ends of the first heating pipe have a certain distance, the distance is the first gap 210, the first gap 210 does not directly generate heat after the first heating pipe 200 is powered on, and the temperatures of the two ends of the first heating pipe 200 are low, so that the temperature of the air around the first gap 210 and the temperature of the portion of the substrate 100 corresponding to the first gap 210 are low relative to the temperature of the pipe body portion of the first heating pipe 200. After the second heating pipe 300 is wound around the predetermined region 110, opposite ends of the second heating pipe have a certain distance, the distance is the second gap 310, the second gap 310 does not directly generate heat after the second heating pipe 300 is powered on, and the temperatures of the two ends of the second heating pipe 200 are low, so that the air temperature of the second gap 310 portion and the temperatures of the portions of the substrate 100 corresponding to the second gap 310 are lower than the temperature of the pipe body portion of the second heating pipe 300.

After the second heating pipe 300 is wound around the first heating pipe 200, the first gap 210 of the first heating pipe 200 and the second gap 310 of the second heating pipe 300 may be disposed in a staggered manner, so that the pipe body portion of the first heating pipe 200 may be opposite to the second gap 310 of the second heating pipe 300, and after the first heating pipe 200 is powered on, the substrate 100 and the portion corresponding to the second gap 310 of the second heating pipe 300 may be heated, so that the temperatures of the second gap 310 and the portion corresponding to the second gap 310 of the substrate 100 may be increased. Accordingly, the second heating tube 300 may heat the substrate 100 and the portion of the first heating tube 200 corresponding to the first gap 210 after being energized, so that the temperature of the first gap 210 and the portion of the substrate 100 corresponding to the first gap 210 may be increased.

Therefore, by arranging the first gap 210 of the first heating tube 200 and the second gap 310 of the second heating tube 300 in a staggered manner, the portions of the substrate 100 corresponding to the first gap 210 and the second gap 310 can be heated by the second heating tube 300 and the first heating tube 200, respectively, so that the heat distribution of each portion of the substrate 100 is uniform, and accordingly, the heating effect of the member to be heated is also better.

In the heating device provided by the embodiment of the present application, the heating assembly is configured to include the first heating pipe 200 and the second heating pipe 300, and the heating pipes have the advantages of high thermal efficiency and safety in use. The first heating pipe 200 and the second heating pipe 300 in the heating assembly are both disposed around the preset region 110 of the substrate 100, so that the first heating pipe 200 and the second heating pipe 300 can be uniformly distributed around the preset region 110 of the substrate 100, and thus, heat generated by the first heating pipe 200 and the second heating pipe 300 can be uniformly distributed on the substrate 100. The second heating pipe 300 is wound around the first heating pipe 200, and the first gaps 210 at two opposite ends of the first heating pipe 200 and the second gaps 310 at two opposite ends of the second heating pipe 300 are arranged in a staggered manner, so that part of the pipe body of the first heating pipe 200 is opposite to the second gaps 310 of the second heating pipe 300, and part of the pipe body of the second heating pipe 300 is opposite to the first gaps 210 of the first heating pipe 200, so that heat generated by the first heating pipe 200 can be more efficiently transmitted to the part of the substrate 100 corresponding to the second gaps 310, and heat generated by the second heating pipe 300 can be more efficiently transmitted to the part of the substrate 100 corresponding to the first gaps 210, so that the temperatures of all parts of the substrate 100 are more consistent, and the heating elements to be heated are more uniformly.

In some embodiments, in order to further enable the first gap 210 portion of the first heating pipe 200 and the second gap 310 portion of the second heating pipe 300 to be uniformly heated, the first gap 210 portion of the first heating pipe 200 and the second gap 310 portion of the second heating pipe 300 may be disposed at opposite sides of the first heating pipe 200, and the first gap 210 of the first heating pipe 200 and the second gap 310 of the second heating pipe 300 may have a relatively maximum distance, so that the interaction between the first gap 210 of the first heating pipe 200 and the second gap 310 of the second heating pipe 300 may be reduced to a minimum extent, and thus, the heat generated by the first heating pipe 200 and the second heating pipe 300 may be uniformly distributed.

Specifically, the temperature of the substrate 100 corresponding to the first gap 210 of the first heating tube 200 and the temperature of the substrate 100 corresponding to the second gap 310 of the second heating tube 300 are relatively low, and the first gap 210 and the second gap 310 are relatively far apart, so that the two portions of the substrate 100 having relatively low temperatures are relatively far apart, thereby the first heating tube 200 and the second heating tube 300 can heat the second gap 310 and the first gap 210 most effectively.

In some embodiments, in order to reduce the process difficulty of the first and second heating pipes 200 and 300, the first and second heating pipes 200 and 300 may be provided as arc pipes. Specifically, the projection of the first heating pipe 200 formed on the substrate 100 is an annular structure having a notch, the notch corresponds to the first gap 210 of the first heating pipe 200, and the size parameters of each part of the pipe body of the first heating pipe 200 of the annular structure are relatively consistent, so that the heating effect of each part of the pipe body of the first heating pipe 200 is consistent, and correspondingly, the corresponding parts of the substrate 100 and the first heating pipe 200 are heated uniformly.

The projection of the second heating tube 300 formed on the substrate 100 is also of an annular structure having a gap, the gap corresponds to the second gap 310 of the second heating tube 300, and the size parameters of each part of the tube body of the second heating tube 300 of the annular structure are relatively consistent, so that the heating effect of each part of the tube body of the second heating tube 300 is consistent, and correspondingly, the portions of the substrate 100 corresponding to the second heating tube 300 are heated uniformly.

In addition, the first heating pipe 200 and the second heating pipe 300 adopt arc structures, and the first heating pipe 200 and the second heating pipe 300 can be prevented from being bent at a large angle, so that the first heating pipe 200 and the second heating pipe 300 have better structural strength.

In some embodiments, in order to further make the heating effect of the first and second heating pipes 200 and 300 on the substrate 100 uniform, the predetermined region 110 on the substrate 100 may be disposed at a central position of the substrate 100, and thus, the first heating pipe 200 is disposed around the central position of the substrate 100, the second heating pipe 300 is also disposed around the central position of the substrate 100, and the first heating pipe 200 is disposed around the central position of the substrate 100, so that the first and second heating pipes 200 and 300 heat respective portions of the substrate 100 more uniformly.

In some embodiments, in order to improve the heating effect of the heating assembly, the number of the heating assemblies may be multiple, and correspondingly, the number of the first heating pipes 200 and the second heating pipes 300 is also multiple, and the multiple heating assemblies may be sequentially disposed around the preset region 110 of the substrate 100, so that the number of the first heating pipes 200 and the second heating pipes 300 disposed on the substrate 100 is greater, and the multiple first heating pipes 200 and the multiple second heating pipes 300 may generate heat simultaneously after being powered on, so that the heating device of the present application generates more heat, and the heating effect is better.

Specifically, in the case where the number of the first heating pipes 200 is plural, the plural first heating pipes 200 may be gradually reduced in length while maintaining the same type of shape, the plural first heating pipes 200 are sequentially wound, and the first heating pipe 200 having a relatively long length winds the first heating pipe 200 having a relatively short length therein, so that each portion of the substrate 100 around the predetermined region 110 thereof may be heated. The plurality of second heating pipes 300 may also be gradually reduced in length while maintaining the same type of shape, the plurality of second heating pipes 300 are sequentially wound, and the second heating pipe 300 having a relatively long length winds the second heating pipe 300 having a relatively short length therein, so that each portion of the substrate 100 around the predetermined region 110 thereof may be further uniformly heated.

The plurality of first heating pipes 200 and the plurality of second heating pipes 300 may be sequentially wound, such that one second heating pipe 300 is provided between two adjacent first heating pipes 200, and one first heating pipe 200 is also provided between two adjacent second heating pipes 300. The first gaps 210 of the plurality of first heating pipes 200 may be correspondingly located, and the second gaps 310 of the plurality of second heating pipes 300 may also be correspondingly located, so that the second heating pipes 300 are disposed on both sides of the first gap 210 of each first heating pipe 200, and the bodies of the two second heating pipes 300 are opposite to the first gap 210 of the first heating pipe 200, so that the first gap 210 of the first heating pipe 200 may be simultaneously heated by the two second heating pipes 300, and correspondingly, the first heating pipes 200 are disposed on both sides of the second gap 310 of each second heating pipe 300, and the two first heating pipes 200 are opposite to the second gap 310 of the second heating pipe 300, so that the second gaps 310 of the second heating pipes 300 may be simultaneously heated by the adjacent two first heating pipes 200. Accordingly, the substrate 100 may be heated more uniformly by providing the plurality of first heating pipes 200 and the plurality of second heating pipes 300. Of course, it should be understood that, of the first heating pipe 200 or the second heating pipe 300 located closest to the center of the predetermined region 110 of the substrate 100, the first heating pipe 200 has only one side of the second heating pipe 300, or the second heating pipe 300 has only one side of the first heating pipe 200.

In some embodiments, the substrate 100 may be made of glass or metal in order to provide better thermal conductivity to the substrate 100. Specifically, the substrate 100 in the heating device of the present application can also be used as a part for bearing a to-be-heated member, and one side of the substrate 100 facing away from the heating assembly can be used for bearing the to-be-heated member, so that the to-be-heated member is not pressed against the first heating pipe 200 and the second heating pipe 300, and the to-be-heated member is prevented from damaging the first heating pipe 200 and the second heating pipe 300, therefore, the substrate 100 is made of a material with strong heat conductivity, such as metal and glass, so that the heat generated by the first heating pipe 200 and the second heating pipe 300 can be more efficiently and uniformly diffused to each part of the substrate 100, and further, the to-be-heated member contacting the substrate 100 is heated more uniformly.

Example two

Based on the same inventive concept, the embodiment of the present application further provides a heating base, which includes the heating device of the first embodiment, and the heating base can be used for heating the kettle body 400 of the electric kettle. Of course, the heating device of the present application can also be applied to other electric appliances, such as household electric appliances like rice cookers.

EXAMPLE III

Based on the same inventive concept, the embodiment of the application also provides an electric kettle, which comprises the heating seat of the second embodiment.

The electric kettle is further provided with a kettle body 400, the kettle body 400 is provided with a cavity, objects to be heated, such as clean water, can be placed in the kettle body 400, and the base plate 100 can be used for bearing the kettle body 400, so that the kettle body 400 can be fixed on a side plate surface of the base plate 100, which is opposite to the heating assembly, and heat of the base plate 100 can be conducted into the kettle body 400, so that the objects to be heated in the kettle body 400 can be heated.

In addition, the kettle body 400 may be integrated with the base plate 100, and the base plate 100 may serve as a bottom plate of the kettle body 400, so that an object to be heated in the kettle body 400 may directly contact with the base plate 100, specifically, after clean water is added into the kettle body 400, the clean water may directly contact with the base plate 100, and the first heating pipe 200 and the second heating pipe 200 may directly heat the base plate 100, thereby achieving the purpose of heating the object to be heated in the kettle body 400. Since the object to be heated is in direct contact with the substrate 100, the heating effect of the heating unit on the object to be heated can be made better.

In some embodiments, the electric kettle of the present application further includes a base 500, the substrate 100 in the heating base may be disposed on the base 500, the kettle body 400 is located on the heating base, the base 500 may include a first electrical connector 510, and in addition, the base 500 may further include a control device and a power line, the substrate 100 may include a second electrical connector 120, the second electrical connector 120 is electrically connected to the first heating pipe 200 and the second heating pipe 300, and the first electrical connector 510 is electrically connected to the second electrical connector 120, so that the first heating pipe 200 and the second heating pipe 300 in the heating assembly can be electrically heated, and the control device provided in the base 500 can further control parameters such as heating time and heating amount of the first heating pipe 200 and the second heating pipe 300.

The first electrical connector 510 and the second electrical connector 120 can adopt electrical connectors which are matched with each other, so that the first electrical connector 510 and the second electrical connector 120 can be electrically connected after being contacted and electrified, and in addition, the first electrical connector 510 and the second electrical connector 120 can also adopt the structure of the electrical connectors, so that the first electrical connector 510 and the second electrical connector 120 can be clamped and limited mutually after being connected, and the connection effect of the substrate 100 and the base 500 is stable and reliable.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Claims (11)

1. A heating device, comprising:

a substrate (100) having a predetermined region (110); and

a heating assembly including a first heating pipe (200) and a second heating pipe (300), the first heating pipe (200) being disposed on the base plate (100) and being disposed around the preset region (110), both ends of the first heating pipe (200) having a space therebetween so that a first gap (210) is provided between both ends of the first heating pipe (200),

the second heating pipe (300) is disposed on the base plate (100) and wound around the first heating pipe (200), and a space is provided between two ends of the second heating pipe (300) to allow a second gap (310) to be provided between two ends of the second heating pipe (300),

the first gap (210) and the second gap (310) are arranged in a staggered manner.

2. The heating device according to claim 1, characterized in that the first gap (210) and the second gap (310) are located on opposite sides of the first heating tube (200).

3. The heating device according to claim 2, characterized in that the projections of the first heating tube (200) and the second heating tube (300) onto the base plate (100) are arc-shaped.

4. A heating device according to claim 3, wherein said predetermined area (110) is located in a central position of said substrate (100).

5. The heating device according to claim 1, wherein the number of the heating assemblies is plural, the plural heating assemblies are each disposed around the preset region (110), and the plural heating assemblies are sequentially disposed around the preset region.

6. The heating device according to claim 1, characterized in that the first heating tube (200) and the second heating tube (300) are welded to the base plate (100).

7. The heating device according to claim 1, wherein the substrate (100) is made of glass or metal.

8. A heating seat for heating a kettle body (400) of an electric kettle, comprising a heating device as claimed in any one of claims 1 to 7.

9. An electric kettle, comprising a heating base as claimed in claim 8.

10. An electric kettle as claimed in claim 9, characterized in that the electric kettle further comprises a kettle body (400), the kettle body (400) being arranged on a side of the base plate (100) facing away from the first and second heating pipes (200, 300).

11. The electric kettle as claimed in claim 9, further comprising a base (500), a first electrical connector (510) and a second electrical connector (120), wherein the base plate (100) is arranged on the base (500), the first electrical connector (510) is arranged on the base (500), the second electrical connector (120) is arranged on the base plate (100), the first electrical connector (510) is electrically connected with the second electrical connector (120), and the second electrical connector (120) is further electrically connected with the first heating pipe (200) and the second heating pipe (300).

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