Electric kettle capable of controlling noise

Abstract

The utility model provides an electric kettle capable of controlling noise, which comprises a kettle body, a power supply base, a heating disc, a handle and a main control circuit board, and is characterized by further comprising a noise detection device and a control chip, the noise detection device, the control chip and the heating disc are electrically connected with the main control circuit board, the noise detection device is used for collecting a water boiling noise value in the water boiling period and feeding back the water boiling noise value to the control chip, and when the water boiling noise value reaches the noise preset value, the control chip feeds back the water boiling noise value to the main control circuit board; the main control circuit board controls the heating disc to work in a power reduction mode or intermittently till water is boiled, and the noise detection device is arranged in the kettle body or the power source base or the handle. According to the electric kettle capable of controlling the noise, the water boiling process is controlled and completed through the preset noise value, a low-noise water boiling environment is created, and the requirements of users are met.

Description

Technical Field

[0001] The utility model relates to a liquid heating technology, in particular to an electric kettle with controllable noise. Background Art

[0002] Electric kettles are prone to produce loud noises during the boiling process. During high-power heating (usually 2000W-3000W), the heating plate is heated unevenly, and the excessive power heating produces vibrations and bubble bursts to form noise. When the water temperature reaches above 70 degrees, the bubbles that easily gather above the heating tube burst quickly, thereby generating noise. The noise value is generally above 60 decibels, causing great interference to users. Most of the products on the market reduce noise by coating the heating layer with silent materials or using surface structure treatment, or increasing the concave-convex treatment on the surface of the heating plate to increase the heat dissipation area. This will have a certain impact on the temperature control of the electric kettle, and after a long period of use, it is easy to be covered with scale and the noise reduction effect cannot be achieved. Utility Model Content

[0003] Based on the deficiencies of the prior art, the purpose of the utility model is to provide an electric kettle with controllable noise, which completes the water boiling process through preset noise value control, creates a low-noise water boiling environment, and meets user needs.

[0004] In order to achieve the above-mentioned purpose, the utility model provides an electric kettle with controllable noise, which includes a kettle body, a power base, a heating plate, a handle and a main control circuit board, and is characterized in that it also includes a noise detection device and a control chip, the control chip is provided with a noise preset value, the noise detection device, the control chip and the heating plate are electrically connected to the main control circuit board, the noise detection device is used to collect the boiling noise value during boiling water and feed it back to the control chip, when the boiling noise value reaches the noise preset value, the control chip feeds back to the main control circuit board, the main control circuit board controls the heating plate to reduce power until the water boils, and the noise detection device is arranged in the kettle body, in the power base or in the handle.

[0005] As an improvement of the electric kettle with controllable noise of the utility model, a card slot is provided in the power base of the electric kettle with controllable noise of the utility model, and the noise detection device is installed in the card slot.

[0006] As an improvement of the electric kettle with controllable noise of the utility model, the bottom of the kettle body of the electric kettle with controllable noise of the utility model is provided with a bottom cover, an accommodating cavity is formed between the heating plate and the bottom cover, and the noise detection device is installed in the accommodating cavity.

[0007] As an improvement of the electric kettle with controllable noise of the utility model, the handle of the electric kettle with controllable noise of the utility model is provided with a hollow cavity and a detection port, and the noise detection device is installed in the hollow cavity.

[0008] As an improvement of the electric kettle with controllable noise of the utility model, the power base of the electric kettle with controllable noise of the utility model is also provided with a control panel, the power base is provided with a first electrical connector, the control panel and the first electrical connector are electrically connected to the main control circuit board, and a temperature sensing element is provided in the kettle body.

[0009] As an improvement of the electric kettle with controllable noise of the utility model, a temperature sensing element is provided in the kettle body of the electric kettle with controllable noise of the utility model, the control chip is also provided with a temperature preset value, the main control circuit board is electrically connected to the temperature sensing element, when the temperature sensing element detects that the boiling water temperature reaches the temperature preset value, it feeds back to the control chip, the control chip feeds back to the main control circuit board, and the main circuit board controls the heating plate to reduce power until the water boils.

[0010] As an improvement of the electric kettle with controllable noise of the utility model, the noise detection device of the electric kettle with controllable noise of the utility model is a decibel tester.

[0011] As an improvement of the electric kettle with controllable noise of the utility model, the noise detection device of the electric kettle with controllable noise of the utility model is a microphone and a signal processing module.

[0012] As an improvement of the electric kettle with controllable noise of the utility model, the detection port of the electric kettle with controllable noise of the utility model is located at the inner side of the handle, and the noise detection device faces the detection port.

[0013] As an improvement of the electric kettle with controllable noise of the utility model, the side wall of the power base of the electric kettle with controllable noise of the utility model is provided with a detection port, and the noise detection device faces the detection port.

[0014] Compared with the prior art, the electric kettle with controllable noise of the present invention has the following beneficial effects: it completes the water boiling process by controlling a preset noise value, creates a low-noise water boiling environment, and meets user needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of a preferred embodiment of the electric kettle with controllable noise of the utility model.

[0016] Figure 2 The figure is a schematic structural diagram of a preferred embodiment of the electric kettle with controllable noise of the utility model.

[0017] Figure 3 The utility model is a circuit block diagram of a preferred embodiment of the electric kettle with controllable noise.

[0018] Figure 4 This is a schematic structural diagram of another embodiment (I) of the noise-controllable electric kettle of the utility model.

[0019] Figure 5 This is a schematic structural diagram of another embodiment (II) of the electric kettle with controllable noise of the utility model.

[0020] Figure 6 This is a schematic diagram of the enlarged structure of point A of another embodiment (II) of the electric kettle with controllable noise of the utility model.

[0021] Figure 7 This is a schematic structural diagram of another embodiment (three) of the electric kettle with controllable noise of the utility model.

[0022] Figure 8 This is a schematic diagram of the enlarged structure of point B of another embodiment (three) of the electric kettle with controllable noise of the utility model. DETAILED DESCRIPTION

[0023] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 , describe in detail the preferred embodiment, other embodiment (I), other embodiment (II) and other embodiment (III) of the electric kettle with controllable noise of the present utility model.

[0024] refer to Figure 1 , Figure 2 and Figure 3In this embodiment, the electric kettle with controllable noise of the utility model includes a kettle body 1, a power base 2, a heating plate 4, a handle 6 and a main control circuit board 3, and also includes a noise detection device 7 and a control chip 9. The control chip 9 is provided with a noise preset value. The noise detection device 7, the control chip 9 and the heating plate 4 are electrically connected to the main control circuit board 3. The noise detection device 7 is used to collect the boiling noise value during boiling water and feed it back to the control chip 9. When the boiling noise value reaches the preset noise value, the control chip 9 feeds back to the main control circuit board 3. The main control circuit board 3 controls the heating plate 4 to reduce power until the water boils. The noise detection device 7 is arranged in the kettle body 1. When the user uses it, the main control circuit board 3 controls the heating plate 4 and the noise detection device 7 to start working. The noise detection device 7 detects the boiling noise value during the boiling period and feeds it back to the control chip 9. The control chip 9 compares and analyzes the received boiling noise value with the noise preset value. When the boiling noise value reaches the noise preset value, the control chip 9 feeds back the analysis result to the main control circuit board 3. The main circuit board 3 will control the heating plate 4 to reduce power or work intermittently until the water boils, so that the boiling noise value during the boiling period will not exceed the noise preset value, so that the boiling process is in a low noise state and will not cause interference to the user. In specific implementation, the noise preset value is 30 to 45dB, and the preferred value is 40dB. It can be set at the factory or by the user when in use. The control chip 9 can be set on the noise detection device 7 or on the main control circuit board 3.

[0025] For further reference, Figure 1 , Figure 2 and Figure 3 In a preferred embodiment, a bottom cover 5 is provided at the bottom of the kettle body 1 of the electric kettle with controllable noise of the utility model, a receiving cavity 51 is formed between the heating plate 4 and the bottom cover 5, and the noise detection device 7 is installed in the receiving cavity 51. When the user uses it, the heating plate 4 heats the water in the kettle body 1 when it is working, and the boiling water noise emitted by the kettle body 1 is transmitted to the receiving cavity 51. The noise detection device 7 detects the boiling water noise value in the receiving cavity 51 and feeds it back to the control chip 9.

[0026] For further reference, Figure 1 , Figure 2 and Figure 3In a preferred embodiment, the power base 2 of the electric kettle with controllable noise of the utility model is further provided with a control panel 21, and the power base 2 is provided with a first electrical connector 22, and the control panel 21 and the first electrical connector 22 are electrically connected to the main control circuit board 3, and a temperature sensing element 11 is provided in the kettle body 1. A second electrical connector 12 is further provided at the bottom of the kettle body 1, and the second electrical connector 12 is electrically connected to the heating plate 4 and the temperature sensing element 11. When the kettle body 1 is placed on the power base 2, the first electrical connector 22 is engaged with the second electrical connector 12 to form an electrical connection, so that the main control circuit board 3 is electrically connected to the heating plate 4 and the temperature sensing element 11.

[0027] For further reference, Figure 1 , Figure 2 and Figure 3 In a preferred embodiment, the noise detection device 7 of the electric kettle with controllable noise of the utility model is a microphone 71 and a signal processing module 72. The signal processing module 72 also includes an audio processing chip 721 and an analog-to-digital converter 722. The microphone 71 is used to detect the sound signal during the boiling process. The audio processing chip 721 performs preprocessing, amplification, filtering and other operations on the detected sound signal. The analog-to-digital converter 722 converts the sound signal into a boiling noise value and sends it to the control chip 9. The control chip 9 compares and analyzes the received boiling noise value with the preset noise value. When the boiling noise value reaches the noise value, the noise value is set to zero. When the noise reaches the preset value, the control chip 9 will feed back the analysis result to the main control circuit board 3, and the main control circuit board 3 will reduce the power of the heating plate 4 through the thyristor power regulation circuit arranged on the main control circuit board 3, usually reducing the power of the heating plate to 800-1500W, preferably 1200W, by reducing the heating power of the heating plate 4, reducing the noise value of the heating plate 4 during the boiling period, so that the boiling noise value during the boiling period will not exceed the preset noise value, and when the temperature sensing element 11 detects that the boiling water reaches the boiling temperature, the main control circuit board 3 will control the heating plate 4 to stop heating or enter the insulation state. In other embodiments, the noise detection device 7 can also be a decibel tester or a voiceprint detection device.

[0028] In other implementations, in a preferred embodiment, the heating disc 4 is controlled to work intermittently by a relay switch circuit provided on the main control circuit board 3, thereby reducing the boiling noise value of the heating disc 4 during the boiling period.

[0029] For further reference, Figure 1 , Figure 2 and Figure 3The kettle body 1 of the electric kettle with controllable noise of the utility model is provided with a temperature sensing element 11, the control chip 9 is also provided with a temperature preset value, the main control circuit board 3 is electrically connected to the temperature sensing element 11, when the temperature sensing element 11 senses that the boiling water temperature reaches the temperature preset value, the temperature preset value is 60-80 degrees, preferably 65 degrees, the temperature sensing element 11 feeds back to the control chip 9, the control chip 9 feeds back to the main control circuit board 3, the main control circuit board 3 controls the heating plate 4 to reduce the power until the water boils, usually reducing the power of the heating plate to 800-1500W, preferably 1200W. In this way, during the water boiling period, the heating plate 4 is controlled to reduce power and work until the water boils in combination with the noise preset value and the temperature preset value set by the control chip 9, that is, during the water boiling period, when the water boiling temperature reaches the temperature preset value first, the main control circuit board 3 controls the heating plate 4 to reduce power and work until the water boils, or when the water boiling noise value reaches the noise preset value first, the main control circuit board 3 controls the heating plate 4 to reduce power and work until the water boils, thus ensuring better control of the water boiling noise value during the water boiling period. The medium temperature preset value of the control chip 9 can be set at the factory or by the user during use, and the control chip 9 can be set on the noise detection device 7 or on the main control circuit board 3.

[0030] refer to Figure 4 In other embodiments (I), the power base 2 of the electric kettle with controllable noise of the utility model is provided with a card slot 23, and the noise detection device 7 is installed in the card slot 23. When the user uses it, the heating plate 4 heats the water in the kettle body 1 when it is working, and the boiling water noise emitted by the kettle body 1 is transmitted to the power base 2. The noise detection device 7 detects the boiling water noise value in the power base 2 and feeds it back to the control chip 9.

[0031] refer to Figure 5 and Figure 6 In other embodiment (II), the side wall of the power base 2 of the electric kettle with controllable noise of the utility model is provided with a detection port 8, and the noise detection device 7 faces the detection port 8. The boiling water noise emitted by the kettle body 1 is transmitted to the noise detection device 7 through the detection port 8, and the noise detection device 7 detects the boiling water noise value and feeds it back to the control chip 9.

[0032] refer to Figure 7 and Figure 8In other embodiments (three), the handle 6 of the electric kettle with controllable noise of the utility model is provided with a hollow cavity 61 and a detection port 8, and the noise detection device 7 is installed in the hollow cavity 61. When the user uses it, the heating plate 4 works to heat the water in the kettle body 1, and the boiling water noise emitted by the kettle body 1 is transmitted to the hollow cavity 61. The noise detection device 7 detects the boiling water noise value in the hollow cavity 61 and feeds it back to the control chip 9.

[0033] Furthermore, the detection port 8 of the electric kettle with controllable noise of the utility model is located inside the handle 6, and the noise detection device 7 faces the detection port 8. When the user uses it, the heating plate 4 heats the water in the kettle body 1, and the boiling water noise emitted by the kettle body 1 is transmitted from the detection port 8 to the noise detection device 7, and the noise detection device 7 detects the boiling water noise value and feeds it back to the control chip 9.

[0034] Compared with the prior art, the utility model has the following beneficial effects: it completes the water boiling process through preset noise value control, creates a low-noise water boiling environment, and meets user needs.

[0035] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. An electric kettle with controllable noise, comprising a kettle body, a power base, a heating plate, a handle and a main control circuit board, characterized in that: It also includes a noise detection device and a control chip, the control chip is provided with a noise preset value, the noise detection device, the control chip and the heating plate are electrically connected to the main control circuit board, the noise detection device is used to collect the boiling water noise value during the boiling water period and feed it back to the control chip, when the boiling water noise value reaches the noise preset value, the control chip feeds back to the main control circuit board, and the main circuit board controls the heating plate to reduce power until the water boils, and the noise detection device is arranged in the kettle body, in the power base or in the handle.

2. The electric kettle with controllable noise according to claim 1, characterized in that: A card slot is provided in the power base, and the noise detection device is installed in the card slot.

3. The electric kettle with controllable noise according to claim 1, characterized in that: The bottom of the pot body is provided with a bottom cover, and the heating plate An accommodating cavity is formed between the bottom cover and the noise detection device, and the noise detection device is installed in the accommodating cavity.

4. The electric kettle with controllable noise according to claim 1, characterized in that: The handle is provided with a hollow cavity and a detection port, and the noise detection device is installed in the hollow cavity.

5. The electric kettle with controllable noise according to claim 2, 3 or 4, characterized in that: A temperature sensing element is arranged in the kettle body, a control panel is arranged on the power base, a first electrical connector is arranged on the power base, and the temperature sensing element, the control panel, the first electrical connector and the main control circuit board are electrically connected.

6. The electric kettle with controllable noise according to claim 1, characterized in that: A temperature sensing element is provided in the kettle body, and a temperature preset value is also provided in the control chip. The main control circuit board is electrically connected to the temperature sensing element. When the temperature sensing element detects that the boiling water temperature reaches the temperature preset value, it feeds back to the control chip. The control chip feeds back to the main control circuit board. The main circuit board controls the heating plate to reduce power until the water boils.

7. The electric kettle with controllable noise according to claim 1, characterized in that : The noise detection device is a decibel tester.

8. The electric kettle with controllable noise according to claim 1, characterized in that : The noise detection device is a microphone and a signal processing module.

9. The electric kettle with controllable noise according to claim 4, characterized in that : The detection port is located on the inner side of the handle, and the noise detection device faces the detection port.

10. The electric kettle with controllable noise according to claim 2, characterized in that : A detection port is provided on the side wall of the power base, and the noise detection device faces the detection port.

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