Electric heating base and electric heater
By automatically switching heating modes through a rotation sensor and control device, the problem of requiring additional operation in existing electric heaters is solved, achieving convenient and safe heating control.
Patent Information
- Application Number
- CN202522338531.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-04
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-04
AI Technical Summary
In existing electric heaters, the heating control of the kettle body and base requires additional button or touch switch operation, which increases the number of steps for users and potential failure points. In addition, the switch area is prone to accumulating dirt and poses safety hazards when operated with wet hands.
It employs a rotation sensor and control device to automatically switch heating modes based on the rotation signal of the kettle, simplifying user operation and improving safety.
It achieves convenient heating control without the need for additional button operation, improves the safety and stability of the electric heating base, and reduces the risk of failure and maintenance costs.
Smart Images
Figure CN224936905U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of electric heaters, and in particular to an electric heating base and an electric heater. Background Technology
[0002] Existing electric heaters typically consist of a detachable kettle body and a base. The kettle body is placed on the base, which then heats it. Power on / off control is generally achieved using separate mechanical buttons or touch-sensitive electronic switches on the kettle body or base. Users must perform an additional pressing or touching action to activate the heating program after placing the kettle body on the base. This separation of "placement" and "activation" not only increases the number of steps for the user but also creates a potential point of failure due to the independent switching element being a frequently used component, increasing manufacturing costs and maintenance risks. Furthermore, gaps in the switch area may accumulate dirt over time, or pose safety hazards due to wet hands. Utility Model Content
[0003] The main purpose of this utility model is to provide an electric heating base and an electric heater, which aims to improve the safety and convenience of the electric heating base.
[0004] To achieve the above objectives, the electric heating base proposed in this utility model includes: The body has a connector protruding from it for electrical connection with the heating kettle, and the connector is connected to a heating unit; A turntable is located on the upper side of the main body, and the turntable is provided with a through hole for the connector to pass through. The turntable rotates relative to the main body as the heating kettle rotates. A rotation sensing device senses the rotation of the turntable and outputs a sensing signal; and The control device, located within the main body, controls the heating unit to switch heating modes according to the sensing signal after the heating kettle is placed on the turntable.
[0005] In one embodiment, the electric heating base further includes a placement sensing device for sensing whether the heating kettle is placed on the turntable; The control device is also used to: when the heating kettle is first detected to be placed on the turntable, control the heating mode of the heating unit to be off mode.
[0006] In one embodiment, the rotation sensing device includes a first sensing element and a second sensing element; when the turntable rotates, the first sensing element and / or the second sensing element generate corresponding sensing signals and output them.
[0007] In one embodiment, the first sensor is connected to the turntable, and the second sensor is connected to the body.
[0008] In one embodiment, the turntable is provided with a mounting part, the first sensing element is assembled to the mounting part, and the second sensing element is assembled to the body.
[0009] In one embodiment, the mounting portion is a first tooth extending along the axial direction of the turntable, and the first tooth is used to assemble the first sensing element.
[0010] In one embodiment, there are multiple first teeth, which are spaced apart along the circumferential direction of the turntable, and each first tooth is equipped with a first sensing element.
[0011] In one embodiment, one of the first sensing element and the second sensing element is a magnetic element, and the other is a magnetic sensor.
[0012] In one embodiment, the first sensing element is a conductor; the second sensing element is a capacitive sensing plate, which extends along the rotation direction of the turntable, and the conductor is disposed opposite to the capacitive sensing plate. The conductor rotates with the rotation of the turntable, and the capacitive sensing plate generates a corresponding sensing signal and outputs it when the turntable rotates.
[0013] In one embodiment, the capacitive sensing plate extends along the axial direction of the body, and the mounting portion extends along the axial direction of the turntable; or, the capacitive sensing plate extends along the radial direction of the body, and the mounting portion is located on the side of the turntable facing the body and extends along the radial direction of the turntable.
[0014] In one embodiment, the turntable has a plurality of baffles on the side facing the main body, the plurality of baffles are spaced apart in the circumferential direction, and a gap is formed between two adjacent baffles. The first sensor and the second sensor are disposed opposite to each other on both sides of the baffles. When the turntable rotates and drives the baffles to rotate, the first sensor and / or the second sensor generate the corresponding sensing signal and output it.
[0015] 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 turntable, 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.
[0016] In one embodiment, the turntable has a plurality of protrusions, and a recess is formed between two adjacent protrusions. The protrusions extend in the radial direction or the axial direction of the turntable. The rotation sensing device includes an elastic contact portion that can slide on the recess and the protrusion, and a sensing unit connected to the elastic contact portion. When the elastic contact portion expands or contracts, the sensing unit generates the sensing signal.
[0017] In one embodiment, the elastic contact portion includes a first elastic element and a contact head, the contact head being elastically connected to the body via the first elastic element.
[0018] In one embodiment, the electric heating base further includes a second elastic element and a plurality of second teeth. Of the turntable and the body, one is provided with a plurality of second teeth spaced apart along the rotation direction of the heating pot, and the other is provided with a second elastic element. When the heating pot is rotated, the second elastic element and the second teeth rotate relative to each other to generate an audible prompt and / or a change in torque when the heating pot rotates.
[0019] In one embodiment, the electric heating base further includes a prompting device installed on the main body, which outputs prompting information when the heating kettle rotates and / or when the heating unit switches heating modes.
[0020] In one embodiment, the prompting device includes a vibration motor electrically connected to the control device. The control device controls the vibration motor to emit a vibration prompt when the kettle rotates and / or when the heating unit switches heating modes; and / or, The indicator device includes an indicator light, which is electrically connected to the control device. The control device controls the indicator light to emit a light signal when the kettle rotates and / or when the heating unit switches heating modes; and / or, The prompting device includes a buzzer, which is electrically connected to the control device. The control device controls the buzzer to emit an audible prompt when the kettle rotates and / or when the heating unit switches heating modes.
[0021] This utility model also proposes an electric heater, which includes a base and a heating pot; the base is the aforementioned electric heating base.
[0022] The electric heating base of this utility model includes a body, a turntable, a rotation sensing device, and a control device. A connector protrudes from the body, allowing the connector to electrically connect to the heating kettle for heating. Furthermore, a heating unit is connected to the connector. When the heating kettle drives the turntable to rotate, the rotation sensing device senses the rotation signal of the turntable and outputs it as a sensing signal. The control device then controls the heating unit to switch heating modes based on the sensing signal. Specifically, if the heating mode before switching is "on," the rotation sensing device sends a "off" signal to the control device after the turntable rotates and stops, switching the heating mode to "off." If the heating mode before switching is "off," the rotation sensing device sends an "on" signal to the control device after the turntable rotates and stops, switching the heating mode to "on." Alternatively, after the turntable rotates and stops, the rotation sensing device can send a tea-brewing signal or a milk-brewing signal to the control device, switching the heating unit from water-boiling mode to tea-brewing mode, milk-brewing mode, etc. This allows users to simply place the heating pot on the turntable of the base and rotate the pot to switch the current state of the heating unit, thus turning the power on and off, thereby improving the convenience of the electric heating base. At the same time, compared with the button method in the existing technology, the user can turn the heating unit on and off without touching the rotation sensing device and control device, thereby improving the safety of the electric heating base. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0024] Figure 1 A schematic diagram of the structure of an embodiment of the electric heating base provided by this utility model; Figure 2 for Figure 1 Exploded view; Figure 3 for Figure 1 A cross-sectional view from one perspective in one embodiment of the electric heating base; Figure 4 for Figure 1 A cross-sectional view from another perspective in one embodiment of the electric heating base; Figure 5 for Figure 1 Cross-sectional view of embodiment two of the electric heating base; Figure 6for Figure 1 Cross-sectional view of embodiment three of the electric heating base; Figure 7 for Figure 1 A cross-sectional view from one perspective in embodiment four of the electric heating base; Figure 8 for Figure 1 A cross-sectional view from another perspective in embodiment four of the electric heating base; Figure 9 for Figure 1 A cross-sectional view from one perspective in embodiment five of the electric heating base; Figure 10 for Figure 1 A cross-sectional view from another perspective in embodiment five of the electric heating base.
[0025] Explanation of icon numbers: 10. Body; 11. Connector; 12. Rotating groove; 13. Limiting plate; 20. Turntable; 21. First tooth; 22. Protrusion; 22a. Recess; 24. Cover plate; 24a. Notch; 30. Rotation sensing device; 311. Magnetic sensor; 312. Magnetic component; 321. Capacitive sensing plate; 322. Conductor; 33. Infrared sensor; 34. Ultrasonic sensor; 352. Elastic contact part; 353. Second elastic component; 40. Vibration motor.
[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0028] It should be noted that if the embodiments of this utility model 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.
[0029] Furthermore, if the embodiments of this utility model 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. Therefore, 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 utility model.
[0030] Reference Figures 1 to 3 This utility model proposes an electric heating base, comprising: The body 10 has a connector 11 protruding from it for electrical connection with the heating kettle, and the connector 11 is connected to a heating unit. The turntable 20 is located on the upper side of the body 10, and the turntable 20 is provided with a through hole for the connector 11 to pass through. The turntable 20 rotates relative to the body 10 as the heating kettle rotates. The rotation sensing device 30 senses the rotation of the turntable 20 and outputs a sensing signal; and The control device, located inside the main body 10, controls the heating unit to switch heating modes according to the sensing signal after the heating kettle is placed on the turntable 20.
[0031] The electric heating base of this utility model includes a body 10, a turntable 20, a rotation sensing device 30, and a control device. A connector 11 protrudes from the body 10, allowing the connector 11 to electrically connect to the heating kettle, thereby heating the kettle. Furthermore, a heating unit is connected to the connector 11. When the heating kettle drives the turntable 20 to rotate, the rotation sensing device 30 senses the rotation signal of the turntable 20 and outputs the rotation signal as a sensing signal. Then, the control device controls the heating unit to switch heating modes according to the sensing signal. That is, if... If the heating mode before switching the heating unit is on, then after the turntable 20 rotates and stops, the rotation sensor 30 sends a shut-off signal to the control device to switch the heating mode to off. If the heating mode before switching the heating unit is off, then after the turntable 20 rotates and stops, the rotation sensor 30 sends an open signal to the control device to switch the heating mode to on. Alternatively, after the turntable 20 rotates and stops, the rotation sensor 30 can send a tea-making signal or a milk-making signal to the control device, switching the heating unit from boiling water mode to tea-making mode, milk-making mode, etc. This allows users to simply place the kettle on the turntable 20 of the base and rotate the kettle to switch the current state of the heating unit, thus turning the power on and off, improving the convenience of the electric heating base. Furthermore, compared to the button-based methods in existing technologies, the user can turn the heating unit on and off without touching the rotation sensor 30 or the control device, thus improving the safety of the electric heating base.
[0032] Furthermore, the electric heating base also includes a placement sensing device for sensing whether the heating kettle is placed on the turntable 20; the control device is also used to: when the heating kettle is initially detected to be placed on the turntable 20, control the heating mode of the heating unit to be off. Understandably, at the moment the heating kettle is placed, the contact area between the heating kettle and the connector 11 is relatively small. If the heating mode is on at this time, electric sparks are easily generated, which can cause the metal material at the contact point to melt and vaporize due to high temperatures, thus reducing the service life of the heating kettle and the connector 11. Simultaneously, electric arc (spark) discharge is a strong source of instantaneous electromagnetic pulse radiation, which can easily generate electromagnetic interference, potentially affecting the normal operation of other electronic devices, such as the control device, the rotation sensing device 30, or subsequent prompting devices. A gravity sensor can be installed on the chassis. When the weight no longer changes or changes only slightly after the kettle is placed on the base, it indicates that the kettle is completely placed on the turntable 20. At this time, the gravity sensor sends a gravity signal to the control device, and the control device controls the switching of the heating mode through the gravity signal and the sensing signal.
[0033] Specifically, the rotation sensing device 30 includes a first sensing element and a second sensing element; when the turntable 20 rotates, the first sensing element and / or the second sensing element generate corresponding sensing signals and output them. The rotation sensing device 30 detects the rotation of the kettle by sensing the rotation of the first sensor by the second sensor, or the first sensor detects the rotation of the second sensor. This allows the rotation sensing device 30 to identify the rotation information of the kettle, converting the mechanical rotation of the turntable 20 into an electrical signal. Finally, the control device controls the switching of the heating mode of the heating unit. Specifically, if the heating mode before switching is on, the rotation sensing device 30 sends a shut-off signal to the control device after the turntable 20 rotates and stops, thus switching the heating mode to off. If the heating mode before switching is off, the rotation sensing device 30 sends an open signal to the control device after the turntable 20 rotates and stops, thus switching the heating mode to on. Alternatively, after the turntable 20 rotates and stops, the rotation sensing device 30 can send a tea-brewing signal or a milk-brewing signal to the control device, switching the heating unit from boiling water mode to tea-brewing mode, milk-brewing mode, etc.
[0034] Furthermore, in one embodiment, the first sensor is connected to the turntable 20, and the second sensor is connected to the body 10. When the turntable 20 rotates, it causes the first sensor to rotate as well. The second sensor then identifies and converts the rotation signal of the kettle and outputs a corresponding sensing signal. Finally, the control device uses this sensing signal to control the heating unit to switch the current heating mode.
[0035] Furthermore, in another embodiment, the turntable 20 is provided with a mounting portion, the first sensor is mounted on the mounting portion, and the second sensor is mounted on the body 10. That is, when the turntable 20 rotates, it will drive the mounting portion and the first sensor located on the mounting portion to rotate. Then, the second sensor recognizes and converts the rotation signal of the kettle and outputs a corresponding sensing signal. Finally, the control device controls the heating unit to switch the current heating mode through the sensing signal.
[0036] Specifically, the mounting part is a first tooth 21 extending along the axial direction of the turntable 20. The first tooth 21 is used to assemble the first sensing element. When the heating kettle drives the turntable 20 to rotate, the first sensing element rotates together with the first tooth 21. The second sensing element is mounted on the body 10 and remains stationary. Therefore, the second sensing element mounted on the body 10 senses the state change during the rotation of the heating kettle, thereby outputting a sensing signal and controlling the switching of the heating mode in the heating unit through the control device.
[0037] Understandably, in one embodiment, the body 10 is provided with an annular rotating groove 12, and the first tooth 21 extends into the rotating groove 12. The rotating groove 12 extends along the axial direction of the turntable 20, so that the first tooth 21 is confined within the annular rotating groove 12 during the rotation of the turntable 20, reducing the possibility of the turntable 20 deviating during the rotation, thereby improving the stability and reliability of the turntable 20 during the rotation.
[0038] Furthermore, a limiting plate 13 is also connected to the main body 10. The limiting plate 13 is fixed to the main body 10 and at least partially pressed against the turntable 20, thereby limiting the axial direction of the turntable 20 and further improving the stability and reliability of the turntable 20. Of course, in other embodiments, the turntable 20 can also be rotatably connected to the main body 10 via bearings.
[0039] Preferably, there are multiple first teeth 21, which are spaced apart along the circumferential direction of the turntable 20. Each first tooth 21 is equipped with a first sensor. When the turntable 20 rotates, it drives the first teeth 21 and the first sensor to rotate. The second sensor on the body 10 identifies the rotation state of the kettle and outputs a sensing signal, thereby enabling the control device to control the switching of the heating mode of the heating unit through the corresponding sensing signal. Of course, in other embodiments, the mounting part can also be an annular mounting plate that extends along the circumferential direction of the turntable 20.
[0040] Reference Figure 3 and Figure 4 In the first embodiment, one of the first sensing element and the second sensing element is a magnetic element 312, and the other is a magnetic sensor 311. Understandably, when the kettle rotates the turntable 20 relative to the body 10, the magnetic component 312 and the magnetic sensor 311 rotate relative to each other, causing a change in the magnetic field. At this time, the magnetic sensor 311 detects the change in the magnetic field and converts it into an induction signal, which is then sent to the control device. The control device uses this induction signal to control the switching of the heating mode within the heating unit. That is, if the heating mode before the heating unit switches is in the on state, the magnetic sensor 311 sends a shut-off signal to the control device after the turntable 20 rotates and stops, so that the heating mode switches to the off state. If the heating mode before the heating unit switches is in the off state, the magnetic sensor 311 sends an open signal to the control device after the turntable 20 rotates and stops, so that the heating mode switches to the on state. Alternatively, after the turntable 20 rotates and stops, the magnetic sensor 311 sends a tea-making signal or a milk-making signal to the control device, and the heating unit switches from the water-boiling mode to the tea-making mode, milk-making mode, etc.
[0041] Understandably, by sensing the rotational changes of the turntable 20 through the magnetic sensor 311 and magnetic component 312, direct contact with the turntable 20 is unnecessary, thus eliminating mechanical wear and extending the service life of the electric heating base. 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 base. Moreover, the magnetic component 312 and magnetic sensor 311 are insensitive to oil, dust, moisture, and vibration, reducing the environmental requirements of the electric heating base and thereby improving its stability, reliability, and applicability.
[0042] Specifically, the first sensing element is a conductor 322; the second sensing element is a capacitive sensing plate 321, which extends along the rotation direction of the turntable 20, and the conductor 322 is disposed opposite to the capacitive sensing plate 321. The conductor 322 rotates with the rotation of the turntable 20, and the capacitive sensing plate 321 generates a corresponding sensing signal and outputs it when the turntable 20 rotates. Understandably, when the kettle rotates the turntable 20 relative to the body 10, the conductor 322 rotates relative to the capacitive sensing plate 321, causing a change in capacitance. The capacitive sensing plate 321 detects this capacitance change and converts it into a sensing signal, which is then sent to the control device. The control device uses this sensing signal to control the switching of the heating mode within the heating unit. Specifically, if the heating mode before switching is "on," the capacitive sensing plate 321 sends a "off" signal to the control device after the turntable 20 rotates and stops, thus switching the heating mode to "off." If the heating mode before switching is "off," the capacitive sensing plate 321 sends an "on" signal to the control device after the turntable 20 rotates and stops, thus switching the heating mode to "on." Alternatively, after the turntable 20 rotates and stops, the capacitive sensing plate 321 can send a tea-brewing signal or a milk-brewing signal to the control device, switching the heating unit from water-boiling mode to tea-brewing mode, milk-brewing mode, etc.
[0043] Reference Figure 5 In the second embodiment, the capacitive sensing plate 321 extends along the axial direction of the body 10, and the mounting part extends along the axial direction of the turntable 20; that is, the capacitive sensing plate 321 is vertically arranged, and the capacitive sensing plate 321 is arranged opposite to the mounting plate.
[0044] Reference Figure 6 In embodiment three, the capacitive sensing plate 321 extends radially along the body 10, and the mounting portion is located on the side of the turntable 20 facing the body 10 and extends radially along the turntable 20. That is, the capacitive sensing plate 321 is horizontally mounted on the body 10, and the side of the capacitive sensing plate 321 opposite to the side of the mounting portion away from the turntable 20 is positioned opposite to it.
[0045] The capacitive sensing plate 321 interacts solely through electromagnetic fields, eliminating the need for mechanical parts for contactless detection. Its strong penetrating power allows it to detect extremely minute changes, thereby improving the response speed and sensitivity of the electric heating base. Furthermore, the capacitive sensing plate 321 is a mature and stable technology with low cost, thus enhancing the stability and reliability of the electric heating base and reducing its manufacturing costs.
[0046] Reference Figure 7 and Figure 8 In embodiment four, the turntable 20 is provided with a plurality of baffles 24 on the side facing the body 10. The plurality of baffles 24 are spaced apart in the circumferential direction, and a notch 24a is formed between two adjacent baffles 24. The first sensor and the second sensor are disposed opposite to each other on both sides of the baffles 24. When the turntable 20 rotates and drives the baffles 24 to rotate, the first sensor and / or the second sensor generate the corresponding sensing signal and output it. The first and second sensors are positioned opposite each other on either side of the baffle plate 24. One of the first and second sensors sends a signal, while the other receives it. When the kettle rotates the baffle plate 24 between the first and second sensors, the signal sent by one of them is blocked by the baffle plate 24, preventing the other from receiving it. However, when the kettle rotates the turntable 20 until the notch 24a is positioned between the first and second sensors, the signal sent by one of them can be successfully received by the other. When the notch 24a and the baffle plate 24 switch between the first and second sensors, this rotational change of the turntable 20 is reflected. The motion sensing device 30 converts the signal into a sensing signal and sends it to the control device, so that the control device can control the heating unit to switch states through the sensing signal. That is, if the heating mode of the heating unit before switching is the on state, after the turntable 20 rotates and stops, the first sensing element or the second sensing element sends a shut-off signal to the control device to switch the heating mode to the off state; if the heating mode of the heating unit before switching is the off state, after the turntable 20 rotates and stops, the first sensing element or the second sensing element sends an open signal to the control device to switch the heating mode to the on state; or after the turntable 20 rotates and stops, the first sensing element or the second sensing element sends a tea-making signal or a milk-making signal to the control device, and the heating unit switches from the water-boiling mode to the tea-making mode, milk-making mode, etc.
[0047] It should be noted that when the rotation amplitude of the turntable 20 is too small, causing the rotation sensing device 30 to always be positioned opposite the same baffle 24 or the same notch 24a, the rotation sensing device 30 will not send a sensing signal to the control device, nor will it generate a sensing signal, and the state of the heating unit will not change. That is, in embodiment four, an excessively small rotation amplitude will not trigger the rotation sensing device 30.
[0048] Preferably, the rotation sensing device 30 is an infrared sensor 33 or an ultrasonic sensor 34. The infrared sensor 33 operates on a purely optical principle, making it suitable for noisy environments, and it offers fast response and stable, reliable performance. The ultrasonic sensor 34 has strong resistance to electromagnetic interference; its sound waves are unaffected by electromagnetic noise from sources such as WiFi and motors, thus improving the stability and reliability of the rotation sensing device 30. Furthermore, the infrared sensor 33 or the ultrasonic sensor 34 has low cost and stable, reliable performance, thereby improving the reliability of the electric heating base and reducing its operating cost.
[0049] Reference Figure 9 and Figure 10 In embodiment five, the turntable 20 is provided with a plurality of protrusions 22, and a recess 22a is formed between two adjacent protrusions 22. The protrusions 22 extend in the radial direction or the axial direction of the turntable 20. The rotation sensing device 30 includes an elastic contact portion 352 that can slide on the recess 22a and the protrusions 22, and a sensing unit connected to the elastic contact portion 352. When the elastic contact portion 352 expands or contracts, the sensing unit generates the sensing signal. Understandably, the elastic contact portion 352 is elastically connected to the body 10, and a sensing unit is provided on the elastic contact portion 352. When the elastic contact portion 352 contacts the protrusion 22, the elastic contact portion 352 is compressed; when the elastic contact portion 352 is disposed opposite to the recess 22a, the elastic contact portion 352 extends. Therefore, when the kettle rotates relative to the body 10, the sensing unit on the elastic contact portion 352 generates a sensing signal due to sliding with the protrusion 22 or the elastic contact portion 352 extending into the recess 22a. This converts the rotational change of the turntable 20 into a sensing signal and sends it to the control device, so that the control device... The device controls the heating unit to switch heating modes via the sensing signal; that is, if the heating mode of the heating unit before switching is on, the sensing unit sends a shut-off signal to the control device after the turntable 20 rotates and stops, so that the heating mode is switched to off; if the heating mode of the heating unit before switching is off, the sensing unit sends an open signal to the control device after the turntable 20 rotates and stops, so that the heating mode is switched to on; alternatively, after the turntable 20 rotates and stops, the sensing unit sends a tea-making signal or a milk-making signal to the control device, and the heating unit switches from boiling water mode to tea-making mode, milk-making mode, etc.
[0050] Understandably, by providing a sensing unit on the elastic contact portion 352, the rotational changes of the turntable 20 are detected by a contact sensor, thereby avoiding interference from ambient light, electromagnetic noise, temperature fluctuations, etc., and thus greatly improving the reliability and stability of the rotation sensing device 30.
[0051] Specifically, the elastic contact portion 352 includes a first elastic element and a contact head, the contact head being elastically connected to the body 10 via the first elastic element. The sensing unit can be disposed on the contact head to detect changes in the contact between the contact head and the second tooth to detect the rotation of the chassis; alternatively, the sensing unit can be mounted on the first elastic element to detect changes in the elastic force on the first elastic element to detect the rotation of the chassis. The first elastic element can be a spring, a silicone block, a rubber block, etc.
[0052] 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 turntable 20, 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 so that the control device can control 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 encoder sends a shut-off signal to the control device after the kettle body rotates and stops, so that the heating mode switches to the shut-off state; if the heating mode before the heating device switches is in the shut-off state, the encoder sends an open signal to the control device after the kettle body rotates and stops, so that the heating mode switches to the open state; alternatively, after the kettle body rotates and stops, the encoder sends a tea-brewing signal or a milk-brewing signal to the control device, and the heating device switches from the water-boiling mode to the tea-brewing mode, milk-brewing mode, etc.
[0053] In embodiments one to six, the electric heating base further includes a second elastic element 353 and multiple second teeth. One of the turntable 20 and the body 10 is provided with multiple second teeth spaced apart along the rotation direction of the heating kettle, while the other is provided with the second elastic element 353. When the heating kettle is rotated, the second elastic element 353 and the second 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 amplitude 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.
[0054] Furthermore, the electric heating base also includes a prompting device installed on the main body 10. When the heating kettle rotates, and / or when the heating unit switches heating modes, the prompting device outputs a prompt message. Through the prompting device, as the turntable 20 rotates and switches the current state of the heating unit, the user can clearly know whether the heating mode has been switched and / or what the current heating mode is, thereby improving the user experience.
[0055] In one embodiment, the prompting device includes a vibration motor 40, which is electrically connected to the control device. When the kettle rotates and / or the heating unit switches heating modes, the control device controls the vibration motor 40 to emit a vibration prompt. That is, each time the user rotates the kettle to drive the turntable 20 to rotate and switches the heating mode of the heating unit, the control device sends a sensing signal to the heating unit and a start signal to the vibration motor 40, thereby driving the vibration motor 40 to send a vibration signal so that the user is clearly aware that the current heating mode of the heating unit has been switched.
[0056] In another embodiment, the indicator device includes an indicator light electrically connected to the control device. The control device controls the indicator light to emit a light signal when the kettle rotates and / or when the heating unit switches heating modes. Specifically, each time the user rotates the kettle to rotate the turntable 20 and switches the heating mode of the heating unit, the control device sends a sensing signal to the heating unit and 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 of the heating unit has been switched. The light signal varies depending on the heating mode state. For example, when the heating mode is switched to the on state, the indicator light emits a green light, which can be a constant 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 constant light or a flashing light.
[0057] In another embodiment, the prompting device includes a buzzer electrically connected to the control device. The control device controls the buzzer to emit an audible prompt when the kettle rotates and / or when the heating unit switches heating modes. Specifically, each time the user rotates the kettle to rotate the turntable 20 and switches the heating mode of the heating unit, the control device sends a sensing signal to the heating unit 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 of the heating unit has been switched.
[0058] This utility model also proposes an electric heater, which includes a base and a heating pot, wherein the base is the electric heating base described above. The specific structure of the electric heating base is as described in the above embodiments. Since this electric heater 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.
[0059] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.
Claims
1. An electrically heated sole, characterized in that, include: The body has a connector protruding from it for electrical connection with the heating kettle, and the connector is connected to a heating unit; A turntable is located on the upper side of the main body, and the turntable is provided with a through hole for the connector to pass through. The turntable rotates relative to the main body as the heating kettle rotates. A rotation sensing device senses the rotation of the turntable and outputs a sensing signal; as well as The control device, located within the main body, controls the heating unit to switch heating modes according to the sensing signal after the heating kettle is placed on the turntable.
2. The electrically heated sole of claim 1, wherein, The electric heating base also includes a placement sensor for sensing whether the heating kettle is placed on the turntable; The control device is also used to: when the heating kettle is first detected to be placed on the turntable, control the heating mode of the heating unit to be off mode.
3. The electric heating base as described in claim 1, characterized in that, The rotation sensing device includes a first sensing element and a second sensing element; when the turntable rotates, the first sensing element and / or the second sensing element generate corresponding sensing signals and output them.
4. The electric heating base as described in claim 3, characterized in that, The first sensor is connected to the turntable, and the second sensor is connected to the main body.
5. The electric heating base as described in claim 3, characterized in that, The turntable is provided with a mounting part, the first sensing element is assembled to the mounting part, and the second sensing element is assembled to the body.
6. The electric heating base as described in claim 5, characterized in that, The mounting portion is a first tooth extending along the axial direction of the turntable, and the first tooth is used to assemble the first sensing element.
7. The electric heating base as described in claim 6, characterized in that, There are multiple first teeth, which are spaced apart along the circumferential direction of the turntable, and each first tooth is equipped with a first sensing element.
8. The electric heating base as described in claim 7, characterized in that, Of the first sensing element and the second sensing element, one is a magnetic element and the other is a magnetic sensor.
9. The electric heating base as described in claim 5, characterized in that, The first sensing element is a conductor; the second sensing element is a capacitive sensing plate, which extends along the rotation direction of the turntable, and the conductor is disposed opposite to the capacitive sensing plate. The conductor rotates with the rotation of the turntable, and the capacitive sensing plate generates a corresponding sensing signal and outputs it when the turntable rotates.
10. The electric heating base as described in claim 9, characterized in that, The capacitive sensing plate extends along the axial direction of the body, and the mounting portion extends along the axial direction of the turntable; or, the capacitive sensing plate extends along the radial direction of the body, and the mounting portion is located on the side of the turntable facing the body and extends along the radial direction of the turntable.
11. The electric heating base as described in claim 3, characterized in that, The turntable has multiple baffles on one side facing the main body. The multiple baffles are spaced apart in the circumferential direction, and a gap is formed between two adjacent baffles. The first sensor and the second sensor are disposed opposite to each other on both sides of the baffle. When the turntable rotates and drives the baffles to rotate, the first sensor and / or the second sensor generate the corresponding sensing signal and output it.
12. The electric heating base as described in claim 4, characterized in that, The first sensing element is a transmission wheel, and the second sensing element is an encoder. The transmission wheel rotates with the turntable, 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.
13. The electric heating base as described in claim 1, characterized in that, The turntable has multiple protrusions, and a recess is formed between two adjacent protrusions. The protrusions extend in the radial direction or the axial direction of the turntable. The rotation sensing device includes an elastic contact portion that can slide on the recess and the protrusion, and a sensing unit connected to the elastic contact portion. When the elastic contact portion expands or contracts, the sensing unit generates the sensing signal.
14. The electric heating base as described in claim 12, characterized in that, The elastic contact portion includes a first elastic element and a contact head, and the contact head is elastically connected to the body through the first elastic element.
15. The electric heating base as described in any one of claims 1 to 14, characterized in that, The electric heating base also includes a second elastic element and a plurality of second teeth. Of the turntable and the body, one is provided with a plurality of second teeth spaced apart along the rotation direction of the heating pot, and the other is provided with a second elastic element. When the heating pot is rotated, the second elastic element and the second teeth rotate relative to each other to produce an audible prompt and / or a change in torque when the heating pot rotates.
16. The electric heating base as described in any one of claims 1 to 14, characterized in that, The electric heating base also includes a prompting device installed on the main body. When the heating kettle rotates, and / or when the heating unit switches heating modes, the prompting device outputs prompt information.
17. The electric heating base as described in claim 16, characterized in that, The alerting device includes a vibration motor electrically connected to the control device. The control device controls the vibration motor to emit a vibration alert when the kettle rotates and / or when the heating unit switches heating modes; and / or, The indicator device includes an indicator light, which is electrically connected to the control device. When the kettle rotates and / or the heating unit switches heating modes, the control device controls the indicator light to emit a light indicator. And / or, The prompting device includes a buzzer, which is electrically connected to the control device. The control device controls the buzzer to emit an audible prompt when the kettle rotates and / or when the heating unit switches heating modes.
18. An electric heater, characterized in that, The electric heater includes a base and a heating pot; the base is the electric heating base according to any one of claims 1-17.