Temperature settable wireless heating device

Abstract

The utility model discloses a temperature settable wireless heating device, which comprises a base device and a heating main body, the heating main body is arranged above the base device, a first induction device is arranged in the base device, a cavity is arranged at the middle lower part of the heating main body, and a second induction device and a heating device are arranged in the cavity. The base device is in induction connection with a second induction device in the heating main body through a first induction device, and the second induction device supplies power to the heating device for heating; according to the utility model, the base device does not heat, the base upper cover is of a closed integral structure, the liquid dripping on the base upper cover does not cause short circuit or scald risk, the liquid dripping on the base does not boil and splash after being heated, and the safety and the comfort are greatly improved; the temperature sensor is attached to the inner layer of the heating body, the detection precision of the temperature sensor is improved, and the technical problem that according to an existing heating kettle, the liquid temperature sensed by the outer side wall of the kettle body is detected through infrared rays, and the accuracy is low is solved.

Description

Technical Field

[0001] This utility model relates to the field of household electrical appliances, and in particular to a wireless heating device with adjustable temperature. Background Technology

[0002] In cold weather, many people choose to drink hot water, herbal tea, or hot coffee to ward off the cold. However, when hot water is poured into ordinary glass or ceramic cups, the water temperature drops quickly. Water in a thermos will either be too hot to drink directly and needs to be poured into a water bottle to cool down. Over time, the water in the thermos will also cool down and will no longer maintain a constant temperature. In winter, especially when drinking beverages such as milk, tea, and coffee, the taste will be greatly affected once the beverage cools down. Therefore, some people invented the health-preserving kettle, which heats up beverages such as tea and coffee when they are too cold, keeping them at a certain temperature to maintain their taste. However, some existing kettles or health-preserving kettles have an exposed heating base in the middle, which is electrically connected to the bottom of the kettle. This can easily cause liquid to drip into the exposed part of the base, creating a short circuit risk. Some kettles heat the base by placing the teapot on it for heat transfer, but the surface temperature of the base can be too high, posing a risk of burns. Liquid dripping onto the heating base can also cause boiling and splashing, as well as the noise of boiling liquid, reducing comfort. Most existing kettles use infrared sensors on the outer wall of the kettle to detect the liquid temperature, which is not very accurate. Utility Model Content

[0003] The purpose of this invention is to provide a wireless heating device with adjustable temperature to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A temperature-settable wireless heating device includes a base device and a heating body. The heating body is placed above the base device. The base device has a first sensing device inside. The lower middle part of the heating body has a cavity. The cavity contains a second sensing device and a heating device. The base device is inductively connected to the second sensing device inside the heating body through the first sensing device. The second sensing device supplies power to the heating device for heating.

[0006] Preferably, the base device includes a lower base cover, an upper base cover, and a first sensing device disposed between the lower base cover and the upper base cover. The first sensing device includes, from bottom to top, a first control motherboard, a first magnetic plate, and a base induction coil. The first control motherboard is electrically connected to the base induction coil.

[0007] Preferably, the first control motherboard is connected to a power interface, the lower cover of the base is provided with a number of limiting posts for fixing the first sensing device, the upper cover of the base is provided with a button group and a base display screen, and the lower cover of the base and the upper cover of the base are ultrasonically welded or connected by other means with sealing effect.

[0008] Preferably, the first control motherboard is provided with a first microprocessor, a first signal processing unit, a power drive unit, and a power interface. The button group and the base display screen are electrically connected to the first microprocessor, and the first signal processing unit is electrically connected to the first microprocessor and the power drive unit.

[0009] Preferably, the bottom of the heating body is equipped with a sealing plate, and the cavity includes a bottom receiving cavity formed by the sealing plate and the bottom of the inner layer of the heating body, and a circumferential receiving cavity between the inner circumferential direction of the heating body and the outer circumferential direction of the heating body; the bottom receiving cavity is equipped with a second sensing device and a heating device from bottom to top.

[0010] Preferably, the second sensing device includes, from bottom to top, a heating main induction coil, a second magnetic plate, and a second control main board. The second control main board is electrically connected to the heating device and electrically connected to the heating main induction coil.

[0011] Preferably, the second control motherboard is provided with a second microprocessor, a second signal processing unit, a rectifier unit, a voltage regulator unit, a temperature sensor, and a heating main display screen. The second signal processing unit is electrically connected to the heating main induction coil, the second microprocessor, and the rectifier unit. The rectifier unit is electrically connected to the heating device and the voltage regulator unit. The second microprocessor is electrically connected to the voltage regulator unit, the temperature sensor, and the heating main display screen.

[0012] Preferably, the second control motherboard is a flexible circuit board, the heating body display screen is located in the circumferential cavity, and the temperature sensor is located on the back of the heating body display screen on the flexible circuit board and attached to the inner layer of the heating body.

[0013] Preferably, the bottom of the heating body is glued to the sealing plate.

[0014] Preferably, the heating element is a light-transmitting solid material such as glass or light-transmitting ceramic, and the heating element is one of a water cup, a baby bottle, or a teapot.

[0015] As can be seen from the above technical solution, the beneficial effects of this utility model are:

[0016] The base itself does not generate heat, and the base cover is a closed, integrated structure. Liquid droplets falling onto the base cover will not cause a short circuit or pose a risk of burns. Liquid droplets falling onto the base will not boil and splash due to heat, greatly improving safety and comfort.

[0017] The temperature sensor is located on the flexible circuit board behind the display screen of the heating body and attached to the inner layer of the heating body. This improves the detection accuracy of the temperature sensor and enables the liquid temperature inside the heating body to be accurately maintained within the set temperature range, thus enhancing the user experience. It also solves the technical problem of low accuracy in existing kettles that use infrared light to detect the liquid temperature on the outer wall of the kettle.

[0018] The main heating element's display screen clearly shows the liquid temperature, while the base unit's top cover display screen shows both the liquid temperature and the set temperature, providing a good user experience. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the exploded structure of this utility model. Figure 1 ;

[0021] Figure 3 This is a schematic diagram of the exploded structure of this utility model. Figure 2 ;

[0022] Figure 4 This is an exploded structural diagram of the heating body of this utility model;

[0023] Figure 5 Cross-sectional view of the heating body of this utility model Figure 1 ;

[0024] Figure 6 Cross-sectional view of the heating body of this utility model Figure 2 ;

[0025] Figure 7 Cross-sectional view of the heating body of this utility model Figure 3 ;

[0026] Figure 8 This is a schematic diagram of the principle structure of the base device of this utility model;

[0027] Figure 9 This is a schematic diagram of the heating body structure of this utility model.

[0028] In the attached diagram: 10. Base device; 101. Lower base cover; 102. Upper base cover; 103. Limiting post; 104. Button group; 105. Base display screen; 20. Heating body; 201. Sealing plate; 202. Cavity; 2021. Bottom receiving cavity; 2022. Circumferential receiving cavity; 30. First sensing device; 301. First control motherboard; 3010. First microprocessor; 3011. First signal processing unit; 3012. Power drive. 3013, Power interface; 302, First magnetic plate; 303, Base induction coil; 40, Second sensing device; 401, Second control main board; 402, Second magnetic plate; 403, Heating body induction coil; 4010, Second microprocessor; 4011, Second signal processing unit; 4012, Rectifier unit; 4013, Voltage regulator unit; 4014, Temperature sensor; 4015, Heating body display screen; 50, Heating device; Detailed Implementation

[0029] To enable those skilled in the art to further understand the features and technical content of this utility model, please refer to the following detailed description and drawings of this utility model.

[0030] like Figure 1-9 As shown, a temperature-adjustable wireless heating device includes a base device 10 and a heating body 20. The heating body 20 is positioned above the base device 10. A first sensing device 30 is provided inside the base device. A cavity 202 is provided in the lower middle part of the heating body 20. A second sensing device 40 and a heating device 50 are installed in the cavity. The base device is inductively connected to the second sensing device 40 inside the heating body 20 through the first sensing device 30. The second sensing device 40 supplies power to the heating device 50 for heating. The heating body 20 is made of a light-transmitting solid material such as glass or light-transmitting ceramic. The heating body 20 can be one of a water cup, a baby bottle, or a teapot. The heating device can be a PI heating film, a PTC heating element, a heating wire, etc.

[0031] like Figure 1-9As shown, the base device 10 includes a lower base cover 101, an upper base cover 102, and a first sensing device 30 disposed between the lower base cover and the upper base cover. The first sensing device, from bottom to top, includes a first control motherboard 301, a first magnetic plate 302, and a base induction coil 303. The first control motherboard 301 is electrically connected to the base induction coil 303. The first control motherboard 301 is connected to a power interface that provides a 5V DC voltage. The power interface is either a USB interface or a Type-C port. The lower base cover 101 is provided with several limiting posts 103 for fixing the first sensing device. The device is secured by the limiting posts 103, the upper base cover 102, and the lower base cover 101. The first sensing device is fixed. The upper cover of the base is provided with a button group 104 and a base display screen 105. The lower cover of the base 101 and the upper cover of the base 102 are ultrasonically welded. Alternatively, other forms of connection such as snap-fit ​​or threaded connection can be used. The first control motherboard 301 is provided with a first microprocessor 3010, a first signal processing unit 3011, a power drive unit 3012, and a power interface 3013. The button group 104 and the base display screen 105 are electrically connected to the first microprocessor 3010. The first signal processing unit 3011 is electrically connected to the first microprocessor 3010 and the power drive unit 3012. The temperature threshold of the liquid in the heating body 20 is set through the button group 104.

[0032] As shown in 1-9, the bottom of the heating body 20 is fitted with a sealing plate 201, and the bottom of the heating body 20 is glued to the sealing plate 201; the cavity 202 includes a bottom receiving cavity 2021 formed by the sealing plate 201 and the bottom of the inner layer of the heating body 20, and a circumferential receiving cavity 2022 between the inner circumferential direction of the heating body 20 and the outer circumferential direction of the heating body 20; the bottom receiving cavity 2021 is respectively equipped with a second sensing device 40 and a heating device 50 from bottom to top; the second sensing device 40 includes a heating body induction coil 403, a second magnetic plate 402, and a second control main board 401 from bottom to top, the second control main board 401 is electrically connected to the heating device 50, and the second control main board 401 is electrically connected to the heating body induction coil 403; the second control main board 401 is provided with a second microprocessor 4010, a second signal processing unit 4011, a rectifier unit 4012, a voltage regulator unit 4013, a temperature sensor 4014, and a heating body. The display screen 4015 is connected to the second signal processing unit 4011, which is electrically connected to the heating body induction coil 403, the second microprocessor 4010, and the rectifier unit 4012. The rectifier unit 4012 is electrically connected to the heating device 50 and the voltage regulator unit 4013. The second microprocessor 4010 is electrically connected to the voltage regulator unit 4013, the temperature sensor 4014, and the heating body display screen 4015. The second control motherboard 401 is a flexible circuit board. The heating body display screen 4015 is located in the circumferential cavity 2022. The temperature sensor 4014 is located on the flexible circuit board on the back of the heating body display screen 4015 and is attached to the inner layer of the heating body 20. This improves the detection accuracy of the temperature sensor 4014 and enables the liquid temperature in the heating body 20 to be accurately maintained within the set temperature range, thus improving the user experience. This solves the technical problem of low accuracy in existing kettles that use infrared light to detect the liquid temperature on the outer wall of the kettle.

[0033] In use, the power interface on the base device 10 provides a 5V DC voltage to the first control motherboard 301. The user sets the heating temperature threshold of the heating body 20 via the button group. The first microprocessor 3010 transmits the signal through the first signal processing unit 3011 to the power drive unit 3012, and then through the base induction coil 303 to the receiving device of the heating body 20, namely the heating body induction coil 403. The second signal processing unit 4011 transmits the signal through the rectification unit 4012 and the voltage regulator unit 4013 to provide the operating voltage to the second microprocessor. The temperature sensor 4014 displays the detected temperature of the inner layer of the heating body 20 on the heating body display screen 4015, and feeds back the real-time temperature value to the base device through the heating body induction coil 403 and the base induction coil 303. The temperature is displayed on the base display screen 105 for easy observation by the user. The rectifier unit 4012 is electrically connected to the heating device 50. When the temperature sensor 4014 detects that the temperature of the inner layer of the heating body 20 reaches the set upper threshold, the second microprocessor 4010 controls the heating device 50 to stop heating. When the temperature sensor 4014 detects that the temperature of the inner layer of the heating body 20 drops to the set lower threshold, the heating device 50 starts heating. The base display screen 105 displays the set threshold temperature and the temperature of the inner layer of the heating body 20 fed back by the temperature sensor 4014. The base device 10 itself does not generate heat. The base cover is a closed integral structure. Liquid dripping onto the base cover 102 will not cause a short circuit or pose a risk of burns. Liquid dripping onto the base will not boil and splash after being heated, greatly improving safety and comfort.

[0034] The above-mentioned inductive transmission of electrical energy and signals is a mature technology.

[0035] The present invention has been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention, and all such changes are similarly included within the scope of the present invention.

Claims

1. A temperature-settable wireless heating device, comprising a base device (10) and a heating body (20), characterized in that: The heating body (20) is placed above the base device (10). The base device is provided with a first sensing device (30). The lower middle part of the heating body (20) is provided with a cavity (202). The cavity is equipped with a second sensing device (40) and a heating device (50). The base device is connected to the second sensing device (40) in the heating body (20) through the first sensing device (30). The second sensing device (40) supplies power to the heating device (50) for heating.

2. The temperature-adjustable wireless heating device as described in claim 1, characterized in that: The base device (10) includes a lower base cover (101), an upper base cover (102), and a first sensing device (30) disposed between the lower base cover and the upper base cover. The first sensing device includes, from bottom to top, a first control motherboard (301), a first magnetic plate (302), and a base induction coil (303). The first control motherboard (301) is electrically connected to the base induction coil (303).

3. The temperature-adjustable wireless heating device as described in claim 2, characterized in that: The first control motherboard (301) is connected to a power interface. The lower base cover (101) is provided with several limiting posts (103) for fixing the first sensing device. The upper base cover is provided with a button group (104) and a base display screen (105). The lower base cover (101) and the upper base cover (102) are connected by ultrasonic welding or a sealing method.

4. The temperature-adjustable wireless heating device as described in claim 3, characterized in that: The first control motherboard (301) is provided with a first microprocessor (3010), a first signal processing unit (3011), a power drive unit (3012), and a power interface (3013). The button group (104) and the base display screen (105) are electrically connected to the first microprocessor (3010), and the first signal processing unit (3011) is electrically connected to the first microprocessor (3010) and the power drive unit (3012).

5. The temperature-adjustable wireless heating device as described in claim 1, characterized in that: The bottom of the heating body (20) is equipped with a sealing plate (201), and the cavity (202) includes a bottom receiving cavity (2021) formed by the sealing plate (201) and the bottom of the inner layer of the heating body (20), and a circumferential receiving cavity (2022) between the inner circumferential direction of the heating body (20) and the outer circumferential direction of the heating body (20); the bottom receiving cavity (2021) is equipped with a second sensing device (40) and a heating device (50) from bottom to top.

6. The temperature-adjustable wireless heating device as described in claim 5, characterized in that: The second sensing device (40) includes, from bottom to top, a heating main induction coil (403), a second magnetic plate (402), and a second control main board (401). The second control main board (401) is electrically connected to the heating device (50) and electrically connected to the heating main induction coil (403).

7. A temperature-adjustable wireless heating device as described in claim 6, characterized in that: The second control motherboard (401) is equipped with a second microprocessor (4010), a second signal processing unit (4011), a rectifier unit (4012), a voltage regulator unit (4013), a temperature sensor (4014), and a heating body display screen (4015). The second signal processing unit (4011) is electrically connected to the heating body induction coil (403), the second microprocessor (4010), and the rectifier unit (4012). The rectifier unit (4012) is electrically connected to the heating device (50) and the voltage regulator unit (4013). The second microprocessor (4010) is electrically connected to the voltage regulator unit (4013), the temperature sensor (4014), and the heating body display screen (4015).

8. A temperature-adjustable wireless heating device as described in claim 7, characterized in that: The second control motherboard (401) is a flexible circuit board. The heating body display screen (4015) is located in the circumferential cavity (2022). The temperature sensor (4014) is located on the flexible circuit board on the back of the heating body display screen (4015) and attached to the inner layer of the heating body (20).

9. A temperature-adjustable wireless heating device as described in claim 8, characterized in that: The bottom of the heating body (20) is glued to the sealing plate (201).

10. A temperature-adjustable wireless heating device as described in claim 1, characterized in that: The heating element (20) is made of glass or translucent ceramic material, and the heating element (20) is one of a water cup, a baby bottle, or a teapot.

Images