Electric heating structure, electric heating base, heating kettle and electric heater

Abstract

The invention discloses an electric heating structure, an electric heating base, a heating kettle and an electric heater, and relates to the technical field of electric heaters, the electric heating structure is applied to the electric heater, the electric heater comprises the electric heating base and the heating kettle placed on the electric heating base, and the heating kettle can rotate relative to the electric heating base; the electric heating structure comprises a heating device, an induction device and a control device, the heating device is used for heating liquid in the heating kettle, the induction device is used for detecting the rotation condition of the heating kettle relative to the electric heating base, and the control device is connected with the induction device and the heating device. When it is detected that the heating kettle rotates on the electric heating base relative to the electric heating base and the heating kettle stops rotating, the heating device is controlled to switch heating modes; according to the technical scheme provided by the invention, the safety and convenience of the electric heating structure are improved.

Description

Technical Field

[0001] This invention relates to the technical field of electric heaters, and particularly to an electric heating structure, an electric heating base, a heating kettle, and an electric heater. Background Technology

[0002] Traditional electric kettles typically consist of a kettle body and an electric heating base. The kettle body is placed on the heating base and connected to a power source via contacts. The heating base provides the power interface and heating controls. Users can operate the electric kettle in two ways: The first method involves placing the kettle on the electric heating base and then pressing a button on the kettle or the heating base to start heating. To activate other heating functions, another button must be pressed. The second method starts heating automatically when the kettle is placed on the heating base, eliminating the need for button operation, but only provides a single heating function. Neither of these methods meets the user's operational needs. Furthermore, both methods require unplugging the kettle or pressing a button to disconnect the power, increasing the difficulty of operation and potentially leading to safety issues if the power is forgotten.

[0003] Therefore, how to simplify the operation of electric kettles and improve their safety has become a concern for those skilled in the art. Summary of the Invention

[0004] The main objective of this invention is to provide an electric heating structure, an electric heating base, a heating kettle, and an electric heater, aiming to improve the safety and convenience of the electric heating structure.

[0005] To achieve the above objectives, the present invention proposes an electric heating structure applied to an electric heater, the electric heater comprising an electric heating base and a heating kettle placed on the electric heating base, the heating kettle being rotatable relative to the electric heating base; the electric heating structure includes: A heating device for heating the liquid in the heating kettle; A sensing device, wherein the sensing device is used to detect the rotation of the kettle relative to the electric heating base; and A control device is connected to the sensing device and the heating device respectively. When the heating kettle is detected to be rotating relative to the electric heating base, and the heating kettle stops rotating, the control device switches the heating mode.

[0006] In one embodiment, the sensing device is further configured to: detect the heating mode of the kettle placed on the electric heating base; the control device is further configured to: when the kettle is first detected to be placed on the electric heating base, control the heating mode of the heating device to be one of the preset heating modes, the preset heating modes including an on mode and an off mode, wherein the on mode includes at least one operating mode, and each operating mode operates with at least one heating parameter selected from time, target temperature, and power.

[0007] In one embodiment, the sensing device is disposed on the electric heating base; or, the sensing device is disposed on the heating kettle; or, a portion of the sensing device is disposed on the electric heating base, and another portion of the sensing device is disposed on the heating kettle.

[0008] In one embodiment, the sensing device includes a rotation detection component, which is used to detect the rotation of the kettle relative to the electric heating base and output a corresponding sensing signal.

[0009] In one embodiment, the rotation detection component includes a first sensor and a second sensor, wherein the first sensor or the second sensor outputs a corresponding sensing signal when the kettle rotates.

[0010] In one embodiment, the first sensor and the second sensor are disposed opposite to each other; or, the vertical projection of the first sensor onto the second sensor is at least partially located on the second sensor.

[0011] In one embodiment, the rotation detection component further includes a turntable mounted on the electric heating base. When the heating kettle is placed on the electric heating base, the turntable rotates together with the heating kettle, and the first sensing element is disposed on the turntable; or the turntable is mounted on the heating kettle, and when the heating kettle is placed on the electric heating base, the heating kettle can rotate relative to the turntable and the electric heating base, and the first sensing element is disposed on the turntable.

[0012] In one embodiment, the turntable includes a mounting portion extending along the axial direction of the heating kettle or the electric heating base, and the first sensing element is disposed on the mounting portion.

[0013] In one embodiment, the mounting portion extends along the circumferential direction of the heating kettle or the electric heating base; or, there are multiple mounting portions, and the multiple mounting portions are spaced apart along the circumferential direction of the heating kettle or the electric heating base.

[0014] In one embodiment, there is one first sensor; or there are multiple first sensors, and the multiple first sensors are spaced apart along the circumferential direction of the heating kettle or the electric heating base.

[0015] In one embodiment, the first and second sensors extend in the axial direction of the kettle or the electric heating base; or, the first and second sensors extend in the radial direction of the kettle or the electric heating base.

[0016] In one embodiment, the rotation detection assembly includes: a signal transmitter, a signal receiver, and a plurality of signal isolation plates that rotate together with the kettle; the plurality of signal isolation plates are spaced apart along the circumferential direction of the kettle or the electric heating base; the signal transmitter and the signal receiver are arranged opposite to each other and located on both sides of the signal isolation plates; the signal transmitter is used to emit a signal, and the signal receiver is used to receive the signal emitted by the signal transmitter and generate a corresponding sensing signal.

[0017] In one embodiment, the rotation detection component includes: a plurality of protrusions and recesses that rotate together with the kettle, an elastic contact portion with one end slidingly contacting the protrusions and recesses, and a signal sensing switch; the signal sensing switch is disposed opposite to the other end of the elastic contact portion, and outputs a corresponding sensing signal according to the contact state with the other end of the elastic contact portion.

[0018] In one embodiment, the rotation detection component further includes a turntable, and the concave and convex positions are disposed on the turntable.

[0019] In one embodiment, the protrusions and recesses are disposed on the turntable along the axial direction of the heating kettle or the electric heating base; or, the turntable includes a mounting portion extending along the axial direction of the heating kettle or the electric heating base, and the protrusions and recesses are disposed on the mounting portion.

[0020] In one embodiment, the first sensing element is a drive wheel, and the second sensing element is an encoder. The drive wheel rotates with the kettle, and the shaft of the drive wheel is connected to the encoder. The encoder generates a corresponding sensing signal when the drive wheel rotates and outputs it.

[0021] In one embodiment, the electric heating structure further includes an elastic element and a plurality of teeth. One of the heating kettle and the electric heating base is provided with a plurality of teeth spaced apart along the rotation direction of the heating kettle, and the other is provided with the elastic element. When the heating kettle is rotated, the elastic element and the teeth rotate relative to each other to generate an audible prompt and / or a change in torque when the heating kettle is rotated.

[0022] In one embodiment, the electric heating structure further includes a prompting device for indicating the rotation status of the heating kettle and / or the heating mode of the heating device.

[0023] In one embodiment, the prompting device outputs at least one of sound signals, photoelectric signals, and vibration signals.

[0024] The present invention also proposes an electric heating base, including the electric heating structure described above.

[0025] The present invention also proposes a heating kettle, including the electric heating structure described above.

[0026] The present invention also proposes an electric heater, comprising the electric heating structure as described above, wherein a portion of the heating device, the induction device, and the control device are disposed in the heating kettle, and the other portion is disposed in the electric heating base.

[0027] The electric heating structure in this invention includes a heating device, an induction device, and a control device. The heating device heats the liquid inside the kettle. Further, the induction device detects the rotation of the kettle relative to the electric heating base. When the kettle rotates relative to the electric heating base, the induction device senses the rotation and transmits this information to the control device. Then, when the kettle stops rotating, the control device controls the heating device to switch heating modes. The switching of heating modes can be as follows: if the heating mode before switching is the on mode (heating), then after the kettle rotates and stops, it switches to the off mode (heating stops); if the heating mode is off... If the heating mode before switching is off, the kettle switches to on mode after rotating and stopping. Alternatively, the heating device can switch from boiling water mode to tea brewing mode, milk boiling mode, etc., after the kettle rotates and stops. Different heating modes can be determined by different rotation angles or by the kettle rotating to different areas on the electric heating base. This allows users to simply place the kettle on the electric heating base and rotate it to switch heating modes, thus improving the convenience of the electric heating structure. Compared to the button-based method in existing technologies, this application's technical solution improves the safety and convenience of the electric heating structure. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 A schematic diagram of the electric heating structure provided by the present invention disposed on the electric heating base; Figure 2 for Figure 1 Exploded view; Figure 3 A schematic diagram of the electric heating structure provided by the present invention disposed in the kettle body; Figure 4 This is a cross-sectional view of the electric heating structure of Embodiment 1 of the present invention disposed on the electric heating base from one perspective; Figure 5 This is a cross-sectional view of the electric heating structure of Embodiment 1 of the present invention, located on the kettle body from one perspective. Figure 6 This is a cross-sectional view of the electric heating structure of Embodiment 1 of the present invention from another perspective of the kettle body; Figure 7 This is a cross-sectional view of the electric heating structure of Embodiment 2 of the present invention disposed on the electric heating base from one perspective; Figure 8 This is a cross-sectional view of the electric heating structure of Embodiment 2 of the present invention as seen from the perspective of the kettle body; Figure 9 This is a cross-sectional view of the electric heating structure of Embodiment 3 of the present invention disposed on the electric heating base from one angle. Figure 10 This is a cross-sectional view of the electric heating structure of Embodiment 4 of the present invention disposed on the electric heating base from one perspective; Figure 11 This is a cross-sectional view of the electric heating structure of Embodiment 4 of the present invention, located on the kettle body from one angle. Figure 12 This is a cross-sectional view of the electric heating structure of Embodiment 5 of the present invention disposed on the electric heating base from one perspective. Figure 13 This is a cross-sectional view of the electric heating structure of Embodiment 5 of the present invention, located on the electric heating base from another angle. Figure 14 This is a cross-sectional view of the electric heating structure of Embodiment 5 of the present invention, located on the kettle body from one angle. Figure 15 This is a cross-sectional view of the electric heater integrated on the electric heating base and used in conjunction with the heating kettle in this invention; Figure 16 This is a cross-sectional view of the electric heater integrated into the heating kettle and matched with the electric heating base in this invention.

[0030] Explanation of icon numbers: 11. Electric heating base; 12. Kettle body; 13. Rotating groove; 14. Limiting plate; 30. Heating unit; 40. Sensing device; 411. Magnetic sensor; 412. Magnetic component; 421. Capacitive sensing plate; 422. Conductor; 431. Infrared sensor; 432. Ultrasonic sensor; 433. Signal transmitter; 434. Signal receiver; 44. Elastic contact part; 50. Turntable; 51. Mounting part; 52. Signal isolation plate; 53. Concave and convex parts; 61. Elastic component; 70. Vibration motor.

[0031] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0034] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0035] Reference Figures 1 to 3 This invention proposes an electric heating structure for use in an electric heater. The electric heater includes an electric heating base 11 and a heating kettle placed on the electric heating base 11, the heating kettle being rotatable relative to the electric heating base 11. The electric heating structure includes: A heating device for heating the liquid in the heating kettle; Sensing device 40, the sensing device 40 being used to detect the rotation of the heating kettle relative to the electric heating base 11; and A control device is connected to the sensing device 40 and the heating device respectively. When the heating kettle is detected to be rotating relative to the electric heating base 11, and the heating kettle stops rotating, the control device is controlled to switch the heating mode.

[0036] The electric heating structure in the technical solution of this invention includes a heating device, an induction device 40, and a control device. The heating device heats the liquid in the kettle. Further, the induction device 40 is used to detect the rotation of the kettle relative to the electric heating base 11. When the kettle rotates relative to the electric heating base 11, the induction device 40 senses the rotation of the kettle and transmits the rotation information to the control device. Then, when the kettle stops rotating, the control device controls the heating device to switch the heating mode. The switching of the heating mode can be as follows: if the heating mode before switching is the on mode, i.e., heating is performed, then the kettle switches to the off mode after rotating and stopping, i.e., heating stops. If the heating mode before switching is the off mode, the kettle switches to the on mode after rotating and stopping; alternatively, after the kettle rotates and stops, the heating device switches from boiling water mode to tea brewing mode, milk brewing mode, etc. Different heating modes can be determined based on different rotation angles or the kettle's position on different areas of the electric heating base 11. This allows users to simply place the kettle on the electric heating base 11 and rotate it to switch heating modes, thus improving the convenience of the electric heating structure. Furthermore, compared to the button-based method in existing technologies, this application's technical solution improves the safety and convenience of the electric heating structure.

[0037] It should be noted that this invention can be configured to perform only one rotation control, that is, to switch the heating mode when the kettle's base turntable rotates for the first time, and then not perform rotation sensing control again; or it can be configured to perform multiple rotation controls, that is, to switch the heating mode each time the kettle's base turntable rotates. The aforementioned switching of the heating mode can be a switch between an on and off mode, or a switch between multiple heating modes such as a water boiling mode and a milk boiling mode.

[0038] Furthermore, the sensing device 40 is also used to: detect the state of the heating kettle placed on the electric heating base 11; the control device is also used to: when the heating kettle is first detected to be placed on the electric heating base 11, control the heating mode of the heating device to one of the preset heating modes, the preset heating modes including an on mode and an off mode, wherein the on mode includes at least one operating mode, and each operating mode operates with at least one heating parameter among time, target temperature, and power.

[0039] Understandably, the sensing device 40 may include a gravity sensor, which is mounted on the turntable 50 or the electric heating base 11. When the kettle is placed on the electric heating base 11, if the gravity no longer changes or changes only slightly, it indicates that the kettle is completely placed on the electric heating base 11. At this time, the gravity sensor sends a gravity signal to the control device, which controls the opening and closing of the heating mode through the gravity signal and the induction signal. Of course, the gravity sensor can also be an electromagnetic sensor. A magnet is set on one of the kettle and the electric heating base 11, and a magnetic sensor is installed on the other. When the kettle is placed on the electric heating base 11, the distance between the magnet and the magnetic sensor reaches a predetermined value. At this time, the magnetic sensor detects the magnetic force of the magnet to determine whether the kettle is placed on the electric heating base 11. The control device controls the opening and closing of the heating mode through the magnetic force signal and the induction signal.

[0040] In one embodiment, the sensing device 40 is disposed on the electric heating base 11; in another embodiment, the sensing device 40 is disposed on the kettle body 12; in yet another embodiment, a portion of the sensing device 40 is disposed on the electric heating base 11, and another portion of the sensing device 40 is disposed on the kettle body 12. This allows the sensing device 40 to sense the rotation of the kettle body 12 when it rotates relative to the electric heating base 11, and to send the rotation information to the control device for control of the heating device.

[0041] Furthermore, the sensing device 40 includes a rotation detection component, which is used to detect the rotation of the kettle relative to the electric heating base 11 and output a corresponding sensing signal. When the kettle rotates on and relative to the electric heating base 11, the rotation detection component can sense the rotation of the kettle and output a corresponding sensing signal to switch the current heating mode. That is, if the heating mode before switching is the on state, the kettle switches to the off state after rotating and stopping; if the heating mode before switching is the off state, the kettle switches to the on state after rotating and stopping; or, after the kettle rotates and stops, the heating device can switch from boiling water mode to tea brewing mode, milk brewing mode, etc.

[0042] Specifically, the control device determines whether the kettle is rotating based on the sensing signal from the rotation detection component; when it is determined that the kettle is rotating, it controls the heating device to switch heating modes. The rotation detection component only sends a sensing signal to the control device when it detects that the kettle is rotating relative to the electric heating base 11 and stops rotating inside the kettle. That is, if the kettle is continuously rotating relative to the electric heating base 11 without stopping, the rotation detection component will not send a sensing signal to the control device during the period the kettle is rotating relative to the electric heating base 11. Of course, in other embodiments, the pause time during the kettle's rotation can be less than a expected value, or the kettle can be determined to be continuously rotating relative to the electric heating base 11. For example, the pause time during the kettle's rotation can be less than 1 millisecond, less than 1 second, or less than 1 microsecond, etc., which can be set according to user needs and actual conditions.

[0043] Furthermore, the rotation detection component includes a first sensor and a second sensor. The first sensor or the second sensor outputs a corresponding sensing signal when the kettle rotates. That is, when the kettle rotates on the electric heating base 11, the first sensor or the second sensor can identify the rotation of the kettle and convert the mechanical rotation into an electrical sensing signal. Finally, the control device controls the switching of the heating mode; that is, if the heating mode before switching is on, the kettle switches to off after rotating and stopping; if the heating mode before switching is off, the kettle switches to on after rotating and stopping. Alternatively, after the kettle rotates and stops, the heating device can switch from boiling water mode to tea brewing mode, milk brewing mode, etc.

[0044] In one embodiment, the first sensor and the second sensor are disposed opposite to each other; in another embodiment, the vertical projection of the first sensor onto the second sensor is at least partially located on the second sensor. This arrangement, where the first sensor and the second sensor are at least partially opposite to each other, allows the second sensor to detect the rotation of the first sensor more instantly and accurately when the first sensor rotates, thereby improving the immediacy and accuracy of the sensing device 40, and consequently enhancing the sensitivity and accuracy of the electric heating structure.

[0045] Furthermore, in one embodiment, the rotation detection component further includes a turntable 50, which is mounted on the electric heating base 11. When the kettle is placed on the electric heating base 11, the turntable 50 rotates together with the kettle. The first sensing element is disposed on the turntable 50. The turntable 50 is rotatably mounted on the electric heating base 11. Therefore, when the kettle is placed on the turntable 50, rotating the kettle will cause the turntable 50 to rotate along with it, rotating relative to the electric heating base 11 while the electric heating base 11 remains stationary. The rotation of the turntable 50 causes the first sensing element to rotate accordingly. The detection device identifies and converts the rotation of the kettle and outputs a corresponding sensing signal. Finally, the control device controls the switching of the heating mode through this sensing signal.

[0046] In another embodiment, the turntable 50 is mounted on the heating kettle. When the heating kettle is placed on the electric heating base 11, the heating kettle can rotate relative to the turntable 50 and the electric heating base 11. The first sensor is located on the turntable 50. When the heating kettle is rotated, the turntable 50 will not rotate, and the heating kettle will only rotate relative to the turntable 50. The first sensor is located on the turntable 50. When the heating kettle rotates relative to the turntable 50, it will drive the second sensor to rotate as well. The second sensor recognizes and converts the rotation status of the first sensor and outputs a corresponding sensing signal. Finally, the control device controls the switching of the heating mode through the sensing signal.

[0047] Specifically, the turntable 50 includes a mounting portion 51 extending along the axial direction of the heating kettle or the electric heating base 11, and the first sensing element is disposed on the mounting portion 51. That is, when the turntable 50 rotates, it will drive the mounting portion 51 and the first sensing element disposed on the mounting portion 51 to rotate. Then, the detection device identifies and converts the rotation of the heating kettle and outputs a corresponding sensing signal. Finally, the control device controls the switching of the heating mode through the sensing signal.

[0048] Further, in one embodiment, the mounting portion 51 extends along the circumferential direction of the heating kettle or the electric heating base 11; in another embodiment, there are multiple mounting portions 51, and these multiple mounting portions 51 are spaced apart along the circumferential direction of the heating kettle or the electric heating base 11. This allows the first sensor to rotate with the mounting portion 51 when the turntable 50 rotates, then the second sensor identifies and converts the rotation of the first sensor and outputs a corresponding sensing signal. Finally, the control device controls the switching of the heating mode through this sensing signal. Of course, in other embodiments, only one mounting portion 51 may be provided, extending along the circumferential direction of the heating kettle.

[0049] Reference Figures 4 to 6 The first sensing element can be one or more, and the multiple first sensing elements are spaced apart along the circumference of the heating kettle or the electric heating base 11. In Embodiment 1, one of the first sensing element and the second sensing element is a magnetic element 412, and the other is a magnetic sensor 411. When the turntable 50 rotates together with the heating kettle, and the electric heating base 11 does not rotate, one of the magnetic element 412 and the magnetic sensor 411 is installed on the turntable 50, and the other is installed on the electric heating base 11. When the turntable 50 is rotatably mounted on the heating kettle, and the heating kettle rotates, the heating kettle will only rotate relative to the turntable 50 and the electric heating base 11, while the turntable 50 and the electric heating base 11 will not rotate. At this time, one of the magnetic element 412 and the magnetic sensor 411 is installed on the turntable 50, and the other is installed on the heating kettle.

[0050] Understandably, when the kettle rotates relative to the electric heating base 11, the magnetic component 412 and the magnetic sensor 411 rotate relative to each other, causing a change in the magnetic field. At this time, the magnetic sensor 411 detects the change in the magnetic field and converts this change into an induction signal, which is then sent to the control device. The control device controls the switching of the heating mode through this induction signal. That is, if the heating mode before the heating device switches to the on state, the kettle switches to the off state after rotating and stopping; if the heating mode before the heating device switches to the off state, the kettle switches to the on state after rotating and stopping; or the heating device can switch from boiling water mode to tea brewing mode, milk brewing mode, etc., after the kettle rotates and stops.

[0051] Understandably, the rotational changes sensed by the magnetic sensor 411 and magnetic component 412 do not require direct contact with the heating kettle, thus eliminating mechanical wear and extending the lifespan of the electric heating structure. Furthermore, the high sensitivity to changes in the sensing magnetic field and the fast response time, with no mechanical delay, improve the response speed of the electric heating structure. Moreover, the magnetic component 412 and magnetic sensor 411 are insensitive to oil, dust, moisture, and vibration, reducing the environmental requirements of the electric heating structure and thereby improving its stability, reliability, and applicability.

[0052] Reference Figure 7 and Figure 8In embodiment two, the extension direction of the first and second sensing elements is the axial direction of the heating kettle or the electric heating base 11. One of the first and second sensing elements is a conductor 422, and the other is a capacitive sensing plate 421. In this case, the extension direction of the capacitive sensing plate 421 is the axial direction of the heating kettle, i.e., the capacitive sensing plate 421 is vertically positioned. When the turntable 50 rotates together with the heating kettle, and the electric heating base 11 does not rotate, one of the conductor 422 and the capacitive sensing plate 421 is mounted on the turntable 50, and the other is mounted on the electric heating base 11. When the turntable 50 is rotatably mounted on the heating kettle, and the heating kettle rotates, the heating kettle will only rotate relative to the turntable 50 and the electric heating base 11; the turntable 50 and the electric heating base 11 will not rotate. In this case, one of the conductor 422 and the capacitive sensing plate 421 is mounted on the turntable 50, and the other is mounted on the heating kettle.

[0053] Reference Figure 9 In embodiment three, the extension direction of the first and second sensing elements is the radial direction of the heating kettle or the electric heating base 11. One of the first and second sensing elements is a conductor 422, and the other is a capacitive sensing plate 421. In this case, the extension direction of the capacitive sensing plate 421 is the radial direction of the heating kettle, i.e., the capacitive sensing plate 421 is arranged horizontally. When the turntable 50 rotates together with the heating kettle, and the electric heating base 11 does not rotate, one of the conductor 422 and the capacitive sensing plate 421 is mounted on the turntable 50, and the other is mounted on the electric heating base 11. When the turntable 50 is rotatably mounted on the heating kettle, and the heating kettle rotates, the heating kettle will only rotate relative to the turntable 50 and the electric heating base 11; the turntable 50 and the electric heating base 11 will not rotate. In this case, one of the conductor 422 and the capacitive sensing plate 421 is mounted on the turntable 50, and the other is mounted on the heating kettle.

[0054] Understandably, when the kettle rotates relative to the electric heating base 11, the conductor 422 rotates relative to the capacitive sensing plate 421, causing a change in capacitance. At this time, the capacitive sensing plate 421 detects the change in capacitance and converts it into an induction signal, which is then sent to the control device. The control device controls the switching of the heating mode through this induction signal. That is, if the heating mode before the switch is on, the kettle switches to off after rotating and stopping; if the heating mode before the switch is off, the kettle switches to on after rotating and stopping. Alternatively, after the kettle rotates and stops, the heating device can switch from boiling water mode to tea brewing mode, milk brewing mode, etc.

[0055] The capacitive sensing plate 421 interacts solely through electromagnetic fields, without mechanical parts, and has strong penetrating power, enabling it to detect extremely minute changes. This improves the response speed and sensitivity of the electric heating structure. Furthermore, the capacitive sensing plate 421 is a mature and stable technology with low cost, thereby enhancing the stability and reliability of the electric heating structure and reducing its manufacturing costs.

[0056] Reference Figure 10 and Figure 11 In embodiment four, the rotation detection component includes: a signal transmitter 433, a signal receiver 434, and a plurality of signal isolation plates 52 that rotate together with the heating kettle; the plurality of signal isolation plates 52 are spaced apart along the circumferential direction of the heating kettle or the electric heating base 11; the signal transmitter 433 and the signal receiver 434 are arranged opposite to each other and located on both sides of the signal isolation plates 52; the signal transmitter 433 is used to emit a signal, and the signal receiver 434 is used to receive the signal emitted by the signal transmitter 433 and generate a corresponding sensing signal.

[0057] When the signal isolation plate 52 is positioned opposite the signal transmitter 433, the information transmitted by the signal transmitter 433 is blocked by the signal isolation plate 52, preventing the signal receiver 434 from receiving the information transmitted by the signal transmitter 433. However, when the gap between two adjacent signal isolation plates 52 is positioned opposite the signal transmitter 433, the information transmitted by the signal transmitter 433 is not affected by the signal isolation plate 52, allowing the signal receiver 434 to receive it normally. Therefore, when the kettle rotates relative to the electric heating base 11, the signal receiver 434 experiences both normal reception and inability to receive the signal transmitted by the signal transmitter 433. When a change occurs between the signals, it indicates that the signal transmitter 433 recognizes the rotational change of the kettle, and then converts this rotational change into an induction signal and sends it to the control device, so that the control device controls the switching of the heating mode through the induction signal; that is, if the heating mode before the heating device switches to the on state, the kettle switches to the off state after rotating and stopping; if the heating mode before the heating device switches to the off state, the kettle switches to the on state after rotating and stopping; it can also switch the heating device from boiling water mode to tea brewing mode, milk brewing mode, etc. after the kettle rotates and stops.

[0058] It should be noted that if the rotation amplitude of the kettle is too small, causing the signal transmitter 433 to always be positioned opposite the same signal isolation plate 52 or the same interval area, then the signal receiver will not generate a change between the two heating modes of normal reception and non-reception. Therefore, the rotation detection component will not generate a sensing signal, and the current heating mode will not switch. That is, in embodiment four, an excessively small rotation amplitude will not trigger the control device to switch the heating mode.

[0059] Preferably, the rotation detection component is an infrared sensor 431 or an ultrasonic sensor 432. The infrared sensor 431 operates on a purely optical principle, making it suitable for noisy environments, and it offers fast response and stable, reliable performance. The ultrasonic sensor 432 has strong resistance to electromagnetic interference; its sound waves are unaffected by electromagnetic noise from sources such as WiFi and motors, thereby improving the stability and reliability of the rotation detection component. Furthermore, both the infrared sensor 431 and the ultrasonic sensor 432 are low-cost and offer stable, reliable performance, thus improving the reliability of the electric heating structure and reducing its operating costs.

[0060] Reference Figures 12 to 14 In embodiment five, the rotation detection component includes: a plurality of concave and convex parts 53 that rotate together with the heating kettle, an elastic contact part 44 that slides in contact with one end of the concave and convex parts 53, and a signal sensing switch; the signal sensing switch is disposed opposite to the other end of the elastic contact part 44, and outputs a corresponding sensing signal according to the contact state with the other end of the elastic contact part 44.

[0061] Understandably, the elastic contact portion 44 is elastically connected to the electric heating base 11 or the kettle, and a sensing unit is provided on the elastic contact portion 44. When the elastic contact portion 44 contacts the concave-convex part 53, the elastic contact portion 44 is compressed; when the elastic contact portion 44 is not opposite to the concave-convex part 53, the elastic contact portion 44 is stretched. Therefore, when the kettle rotates relative to the electric heating base 11, the sensing unit on the elastic contact portion 44 generates a sensing signal due to sliding with the concave-convex part 53, thereby converting this rotational change of the kettle into a sensing signal and sending it to the control device, so that the control device controls the switching of the heating mode through the sensing signal; that is, if the heating mode before the heating device switches to the on state, the kettle switches to the off state after rotating and stopping; if the heating mode before the heating device switches to the off state, the kettle switches to the on state after rotating and stopping; it is also possible that after the kettle rotates and stops, the heating device switches from the water boiling mode to the tea brewing mode, milk boiling mode, etc.

[0062] Understandably, by setting a sensing unit on the elastic contact part 44, the rotational changes of the kettle can be detected by a contact sensor, thereby avoiding interference from ambient light, electromagnetic noise, temperature fluctuations, etc., thus greatly improving the reliability and stability of the sensing device 40.

[0063] Specifically, the elastic contact portion 44 includes a spring and a contact head, the contact head being elastically connected to the electric heating base 11 or the kettle via the spring. Understandably, the spring structure is simple and its performance is stable and reliable, thereby reducing the manufacturing difficulty and cost of the electric heating base 11. Alternatively, the elastic contact portion 44 can also be a spring sheet, directly connected to the electric heating base 11 or the kettle and positioned opposite to the concave-convex part 53. The spring can also be replaced by other elastic elements 61, such as rubber or silicone. The sensing unit can be disposed on the contact head to detect changes in the contact between the contact head and the concave-convex part 53 to detect the rotation of the kettle; alternatively, the sensing unit can be mounted on the spring to detect changes in the elastic force on the spring to detect the rotation of the kettle.

[0064] Furthermore, the rotation detection component further includes a turntable 50, with the protrusion / recess 53 disposed on the turntable 50. In one embodiment, when the turntable 50 is rotatably mounted on the electric heating base 11, the heating kettle drives the turntable 50 to rotate together, and the turntable 50 rotates relative to the electric heating base 11. In another embodiment, when the turntable 50 is rotatably mounted on the heating kettle, the heating kettle rotates relative to the turntable 50, while the turntable 50 and the electric heating base 11 remain stationary. The protrusion / recess 53 is disposed on the turntable 50, thereby realizing the relative rotation between the heating kettle and the electric heating base 11 through the turntable 50, thus simplifying the structure of the electric heating base 11 or the heating kettle, and facilitating the production and manufacturing of the electric heater, as well as subsequent maintenance.

[0065] Specifically, the protrusion / recess 53 is disposed on the turntable 50 along the axial direction of the heating kettle or the electric heating base 11; or, the turntable 50 includes a mounting portion 51 extending along the axial direction of the heating kettle or the electric heating base 11, and the protrusion / recess 53 is disposed on the mounting portion 51. This facilitates the production and processing of the protrusion / recess 53, thereby reducing the manufacturing difficulty and cost of the electric heating structure.

[0066] Furthermore, in embodiment six, the first sensing element is a transmission wheel, and the second sensing element is an encoder. The transmission wheel rotates with the kettle, and the shaft of the transmission wheel is connected to the encoder. The encoder generates a corresponding sensing signal when the transmission wheel rotates and outputs it to the control device, so that the control device controls the switching of the heating mode through the sensing signal. That is, if the heating mode before the heating device switches is in the on state, the kettle switches to the off state after rotating and stopping; if the heating mode before the heating device switches is in the off state, the kettle switches to the on state after rotating and stopping; alternatively, after the kettle rotates and stops, the heating device can switch from the water boiling mode to the tea brewing mode, milk boiling mode, etc.

[0067] The electric heating structure also includes an elastic element 61 and multiple teeth. One of the heating kettle and the electric heating base 11 is provided with multiple teeth spaced apart along the rotation direction of the heating kettle, while the other is provided with the elastic element 61. When the heating kettle is rotated, the elastic element 61 and the teeth rotate relative to each other, generating an audible prompt and / or a change in torque during the rotation of the heating kettle. This allows the user to be given a limit to the rotation amplitude each time they rotate, providing tactile feedback similar to adjusting a gear, making it easier for the user to understand their rotation range and improving the tactile feedback during rotation. It also helps the user clearly know whether the current heating mode has been switched; and / or provides a ticking or other mechanical collision sound prompt each time the user rotates, providing an audible prompt and further improving the user's ability to clearly know whether the current heating mode has been switched. In one embodiment, the electric heating structure further includes a prompting device for indicating the rotation status of the heating kettle and / or the heating mode of the heating device. Through the prompting device, as the turntable 50 rotates and switches heating modes, the user can clearly know whether the current heating mode has been switched, thereby improving the user experience.

[0068] The prompting device outputs at least one of the following signals: sound signal, photoelectric signal, and vibration signal.

[0069] In one embodiment, the prompting device includes a vibration motor 70, which is electrically connected to the control device. The control device controls the vibration motor 70 to emit a vibration prompt when the kettle is rotated and / or when the heating mode is switched. That is, each time the user rotates the kettle to drive the turntable 50 to rotate and switches the current heating mode, the control device sends a sensing signal to the heating device and a start signal to the vibration motor 70, thereby driving the vibration motor 70 to emit a vibration signal so that the user is clearly aware that the current heating mode has been switched.

[0070] In another embodiment, the notification device includes an indicator light electrically connected to the control device. When the control device switches the heating mode, the indicator light emits a light signal. Specifically, each time the user rotates the heating kettle to rotate the turntable 50 and switches the current heating mode, the control device sends a sensing signal to the heating device and simultaneously sends a start signal to the indicator light, thereby driving the indicator light to emit a light signal so that the user is clearly aware that the current heating mode has been switched. The light signal differs depending on the heating mode. For example, when the heating mode is switched to the on state, the indicator light emits a green light, which can be a solid light or a flashing light; when the heating mode is switched to the off state, the indicator light emits a red light, which can be a solid light or a flashing light. Of course, the indicator light can also send the same light information when switching to different heating modes.

[0071] In another embodiment, the notification device includes a buzzer electrically connected to the control device. When the control device switches the current heating mode, the buzzer emits an audible notification. Specifically, each time the user rotates the heating kettle to turn the turntable 50 and switches the current heating mode, the control device sends a sensing signal to the heating device and simultaneously sends a start signal to the buzzer, thereby driving the buzzer to emit an audible signal so that the user is clearly aware that the heating mode has been switched.

[0072] Specifically, the electric heating base 11 or the heating pot is provided with an annular rotating groove 13, and the concave and convex parts 53 or gears extend into the rotating groove 13. The rotating groove 13 extends along the axial direction of the turntable 50, so that the first tooth of the turntable 50 is limited to the annular rotating groove 13 during the rotation process, reducing the possibility of the turntable 50 deviating during the rotation process, thereby improving the stability and reliability of the turntable 50 during the rotation process.

[0073] Furthermore, a limiting plate 14 is also connected to the electric heating base 11 or the heating pot. The limiting plate 14 is fixed to the electric heating base 11 or the heating pot and at least partially pressed against the turntable 50, thereby limiting the axial direction of the turntable 50 and further improving the stability and reliability of the turntable 50. Of course, in other embodiments, the turntable 50 can also be rotatably connected to the body via bearings.

[0074] Figure 15 The present invention also proposes an electric heating base 11, which includes an electric heating structure. The specific structure of the electric heating structure is as described in the above embodiments. Since the electric heating base 11 in this application adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0075] Figure 16The present invention also proposes a heating kettle, which includes an electric heating structure. The specific structure of the electric heating structure is as described in the above embodiments. Since the heating kettle in this application adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0076] The present invention also proposes an electric heater, the heating kettle including an electric heating structure, the specific structure of which refers to the above embodiment, wherein part of the heating device, the induction device 40 and the control device are disposed in the heating kettle and the other part is disposed in the heating electric heating base 11.

[0077] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of protection of the present invention. Any equivalent structural transformations made based on the technical concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present invention.

Claims

1. An electrically heating structure, characterized by, The application is applied to an electric heater, which comprises an electric heating base and a heating kettle placed on the electric heating base, and the heating kettle can rotate relative to the electric heating base. The electric heating structure comprises: a heating device for heating liquid in the heating kettle; an induction device for detecting the rotation of the heating kettle relative to the electric heating base; and a control device connected with the induction device and the heating device, which controls the heating device to switch the heating mode when the heating kettle rotates on the electric heating base relative to the electric heating base and stops rotating.

2. The electrical heating structure of claim 1, wherein, The induction device is also used to detect the state of the heating kettle placed on the electric heating base, and the control device is also used to control the heating mode of the heating device to be one of preset heating modes when the heating kettle is placed on the electric heating base for the first time, wherein the preset heating mode comprises an opening mode and a closing mode, and the opening mode comprises at least one running mode, and each running mode runs with at least one heating parameter of time, target temperature and power.

3. The electrical heating structure of claim 1, wherein, The induction device is arranged on the electric heating base, or the induction device is arranged on the heating kettle, or part of the induction device is arranged on the electric heating base and the other part of the induction device is arranged on the heating kettle.

4. The electrical heating structure of claim 3, wherein, The induction device comprises a rotation detection assembly for detecting the rotation of the heating kettle relative to the electric heating base and outputting corresponding induction signals.

5. The electrical heating structure of claim 4, wherein, The rotation detection assembly comprises a first induction member and a second induction member, and the first induction member or the second induction member outputs corresponding induction signals when the heating kettle rotates.

6. The electrical heating structure of claim 5, wherein, The first induction member is arranged opposite to the second induction member, or a vertical projection of the first induction member on the second induction member is at least partially located on the second induction member.

7. The electrical heating structure of claim 5, wherein, The rotation detection assembly further comprises a rotating disc installed on the electric heating base, which rotates with the heating kettle when the heating kettle is placed on the electric heating base, and the first induction member is arranged on the rotating disc; or The rotating disc is installed on the heating kettle, and the heating kettle can rotate relative to the rotating disc and the electric heating base when the heating kettle is placed on the electric heating base, and the first induction member is arranged on the rotating disc.

8. The electrical heating structure of claim 7, wherein, The rotating disc comprises a mounting portion extending along the axial direction of the heating kettle or the electric heating base, and the first induction member is arranged on the mounting portion.

9. The electrical heating structure of claim 8, wherein, The mounting portion extends along the circumferential direction of the heating kettle or the electric heating base; or the mounting portion is a plurality of mounting portions, and the plurality of mounting portions are arranged at intervals along the circumferential direction of the heating kettle or the electric heating base.

10. The electrical heating structure of claim 5, wherein, The first induction member is one; or the first induction member is a plurality of first induction members, and the plurality of first induction members are arranged at intervals along the circumferential direction of the heating kettle or the electric heating base.

11. The electrical heating structure of claim 5, wherein, The extending direction of the first and second induction components is the axial direction of the heating kettle or the electric heating base; or the extending direction of the first and second induction components is the radial direction of the heating kettle or the electric heating base.

12. The electrical heating structure of claim 4, wherein, The rotation detection assembly comprises a signal emitter, a signal receiver, and a plurality of signal isolation plates rotating with the heating kettle; The plurality of signal isolation plates are arranged along the circumferential direction of the heating kettle or the electric heating base. The signal emitter and the signal receiver are arranged oppositely on both sides of the signal isolation plates; the signal emitter is used for emitting a signal, and the signal receiver is used for receiving the signal emitted by the signal emitter and generating a corresponding induction signal.

13. The electrical heating structure of claim 4, wherein, The rotation detection assembly comprises a plurality of concave-convex positions rotating with the heating kettle, an elastic contact portion in sliding contact with one end of the concave-convex positions, and a signal induction switch; the signal induction switch is arranged oppositely to the other end of the elastic contact portion, and outputs a corresponding induction signal according to the contact state of the other end of the elastic contact portion.

14. The electrical heating structure of claim 13, wherein, The rotation detection assembly further comprises a rotating disc, and the concave-convex positions are arranged on the rotating disc.

15. The electrical heating structure of claim 14, wherein, The concave-convex positions are arranged on the rotating disc along the axial direction of the heating kettle or the electric heating base; or the rotating disc comprises a mounting portion extending along the axial direction of the heating kettle or the electric heating base, and the concave-convex positions are arranged on the mounting portion.

16. The electrical heating structure of claim 5, wherein, The first induction component is a transmission wheel, the second induction component is an encoder, the transmission wheel rotates with the heating kettle, the rotation shaft of the transmission wheel is connected with the encoder, and the encoder generates a corresponding induction signal when the transmission wheel rotates and outputs the induction signal.

17. The electrical heating structure of claim 1, wherein, The electric heating structure further comprises an elastic member and a plurality of tooth portions; one of the heating kettle and the electric heating base is provided with a plurality of tooth portions along the rotation direction of the heating kettle, and the other is provided with the elastic member; when the heating kettle is rotated, the elastic member and the tooth portions produce relative rotation to generate a sound prompt and / or a torque change of the heating kettle during rotation.

18. The electrical heating structure of claim 1, wherein, The electric heating structure further comprises a prompt device for prompting the rotation of the heating kettle and / or the heating mode of the heating device.

19. The electrical heating structure of claim 18, wherein, The prompt device outputs at least one of a sound signal, an optical signal, and a vibration signal.

20. An electrically heated sole, characterized in that The electric heating structure comprises any one of claims 1-19.

21. A heating kettle characterized by The electric heating structure comprises any one of claims 1-19.

22. An electric kettle comprising a heating jug and an electric base, characterised in that, The electric heating structure of any one of claims 1-19, wherein part of the heating device, the induction device, and the control device are arranged in the heating kettle, and the other part are arranged in the electric heating base.

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