Warmer under table capable of being wirelessly controlled
By installing a control board and IoT chip inside the under-table heater, wireless control and stepless temperature adjustment are achieved, solving the problems of manual adjustment and light dependence in existing technologies, thus improving ease of use and safety.
Patent Information
- Application Number
- CN202422686178.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-11-05
AI Technical Summary
Existing under-table heaters require switches and power adjustment buttons for switching on and off and temperature adjustment, which cannot achieve stepless adjustment. They also must be operated in a well-lit area, failing to meet users' convenience needs.
The control board incorporates a built-in power conversion module, zero-point detection module, IoT chip, and heating tube driver. Temperature regulation is achieved through wireless control, and safety is enhanced through thermistors and speed detection modules.
It features wireless control and stepless temperature adjustment, enabling operation in the dark or remotely, thus improving user convenience and safety.
Smart Images
Figure CN223855722U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a heating device technical field, especially under the table heating device of wireless control. BACKGROUND
[0002] Under the table heating device refers to install under the table, as the daily heating equipment.
[0003] However, the existing under the table heating device needs to realize the switch and the temperature adjustment of the heating device through the switch and the power adjustment button, and this adjustment mode not only is low in efficiency, cannot realize the stepless adjustment of the temperature, and must be switched or the temperature is adjusted in the place with light, cannot better satisfy the demand of the user.
[0004] Therefore, the technical personnel in the prior art urgently need to study an under the table heating device which is simple in structure, high in safety coefficient and convenient in switch and temperature adjustment. UTILITY MODEL CONTENTS
[0005] The utility model aims at the problem that the existing heating device needs to realize the switch and the temperature adjustment of the heating device through the switch and the power adjustment button in the background art, cannot realize the stepless adjustment of the temperature, and must be switched or the temperature is adjusted in the place with light, and provides an under the table heating device of wireless control.
[0006] In order to solve the above technical problem, the utility model adopts the following technical scheme:
[0007] An under the table heating device of wireless control, including the heating device, be provided with the power interface for connecting with external power on the heating device, still be provided with the heating pipe in the heating device,
[0008] Still be provided with the control board in the heating device, be provided with the power conversion module, zero point detection module, internet of things chip, heating pipe driving arrangement and thermistor on the control board, still be provided with the heating pipe interface for connecting the heating pipe on the control board,
[0009] The external power is converted into system working power through the power conversion module, zero point detection module generates certain frequency digital square wave after receiving the signal, and the digital square wave is communicated with the internet of things chip, the internet of things chip is communicated with the signal of the heating pipe driving arrangement, the thermistor is arranged in the heating pipe driving arrangement and is communicated with the heating pipe driving arrangement bidirectionally, and the signal of the signal source is transmitted to the heating pipe through the control board, controls the normal heating or the heating of the heating pipe.
[0010] In one embodiment, the control board is also provided with a rotating speed detection module and a fan interface for connecting the fan; when the rotating speed detection module detects that the rotating speed of the fan is abnormal, the rotating speed detection module generates a rotating speed detection digital square wave and transmits abnormal information to the Internet of Things chip through a channel, and the Internet of Things chip receives the information and can control the heating pipe to be in a low-power running state or a stop state.
[0011] In one embodiment, the external power supply is 220V, and the system working power supply is 3.3V.
[0012] In one embodiment, the external power supply generates a digital square wave with a frequency of 50HZ through the zero point detection module, and the digital square wave is in communication with the Internet of Things chip.
[0013] In one embodiment, the high level of the rotating speed detection digital square wave is 3.3V, the low level is 0, and the duty cycle is 50%.
[0014] In one embodiment, the Internet of Things chip is an ESP32-C3 chip or a TYWE series chip.
[0015] In one embodiment, the signal transmission mode of the Internet of Things chip is Bluetooth or Wi-Fi.
[0016] Compared with the prior art, the above technical scheme of the utility model has the following beneficial technical effects:
[0017] The above structure design of the utility model, because the control board is arranged in the warmer, the arrangement of the control board not only realizes the wireless control of the warmer, but also can realize the stepless adjustment of the temperature of the warmer in the case of no light and remote, better meets the demand of the user.
[0018] The arrangement of the rotating speed detection device further avoids that the local temperature of the warmer is too high due to uneven heat dissipation or that the warmer has potential risks due to insufficient detection of the thermistor, and improves the safety of the use of the warmer. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a structure schematic view of an embodiment of the utility model.
[0020] Figure 2 It is a wireless control principle diagram of the utility model.
[0021] Figure 3 It is Figure 2 The specific application principle diagram of an embodiment. DETAILED DESCRIPTION
[0022] In the description of the utility model, it is understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In the description of the utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0023] The embodiments of the utility model will be further described below with reference to the drawings. Those skilled in the art should understand that the embodiments described in the utility model are only exemplary. Next, the embodiments of the utility model will be described with reference to the drawings.
[0024] As Figure 1 And Figure 2 The utility model provides a wireless control table warmer under, including warmer 1, as Figure 1 As shown in the figure, the power interface 11 for connecting with external power supply 3 is arranged on the warmer 1. As Figure 3 As shown in the figure, the heating pipe interface for connecting with the heater is further arranged in the warmer 1.
[0025] As Figure 2 As shown in the figure, the control board is further arranged in the warmer 1, the power conversion module 12, the zero point detection module 13, the internet of things chip 14, the heating pipe driving device 15 and the thermistor 16 are arranged on the control board, and the heating pipe interface 17 is further arranged on the control board, and the heating pipe is communicated with the control board through the heating pipe interface 17.
[0026] The external power supply is converted into system working power supply through the power conversion module. The zero point detection module is communicated with the internet of things chip, and the internet of things chip is communicated with the heating pipe driving device signal. The thermistor is communicated with the heating pipe driving circuit, and the heating driving device can be controlled to work or stop working, and the signal emitted by the signal source is transmitted to the heating pipe through the control board, to control the heating pipe to normally heat or stop heating.
[0027] The warmer 1 is connected with the 220V external power supply 3 through L1, as Figure 3 As shown in the figure, the 220V external power supply is communicated with the power conversion module 12 through L3, converts the external power supply into 3.3V system working power supply, and drives the circuit system to work.
[0028] The setting of the power conversion module 12 is convenient for converting the external power supply directly into the power required by the system, improves the convenience of the use of the warmer.
[0029] The zero point detection module 13 is in communication with the Internet of Things chip 14 through L4. In the embodiment, the zero point detection module 13 adopts PC817C optical coupling to detect 220Vac zero crossing, and generates a square wave signal with a duty cycle of 50% at 50Hz, each rising edge and falling edge representing a zero crossing point.
[0030] When the power is turned on, the signal emitted by the mobile phone 2 serving as the signal source is in communication with the zero point detection module 13. After receiving the signal, the zero point detection module 13 generates a digital square wave at a certain frequency, which is transmitted to the Internet of Things chip 14 through channel L4.
[0031] The Internet of Things chip 14 is in communication with the heating tube driving device 15 through L5. The heating tube driving device 15 has a bidirectional thyristor for receiving the trigger pulse of the Internet of Things chip 14 to turn on the heating tube. The heating tube driving device 15 is internally provided with a PTC thermistor, which is in bidirectional communication with the heating tube driving device 15 through L6. When the temperature of the PTC thermistor is too high, the resistance value increases, and the heating power is automatically reduced.
[0032] In other embodiments, the signal source can also be other devices such as computers, Ipad, etc.
[0033] Through the information emitted from the signal source, remote control of the temperature switch and the temperature of the warmer is realized, so that the temperature of the warmer is adjusted through wireless control.
[0034] The above structure design not only realizes wireless control of the temperature of the warmer, but also enables stepless control of the temperature of the warmer in the case of no light and remote, greatly improving the comfort of the user.
[0035] In the embodiment, the Internet of Things chip adopts an ESP32-C3 chip, and can also adopt a TYWE series chip or other chips. The signal transmission mode is Bluetooth or WIFI.
[0036] The ESP32-C3 chip provides an integrated low-cost wireless communication interface and an IO controller. The module can quickly realize Bluetooth communication or WIFI local area network communication with external APP software, and control the conduction of the heating tube through calculation to realize stepless power control.
[0037] Specifically, when the power is turned on, the external power supply is converted into a system power supply through a power conversion module, and the external signal is received by the zero point detection module 13. After receiving the signal, the zero point detection module 13 generates a digital square wave at a certain frequency, which is transmitted to the Internet of Things chip 14 through channel L4. The Internet of Things chip 14 transmits the signal to the heating tube driving circuit 15 through channel L5 to drive the heating tube to work.
[0038] When the PTC thermistor 16 detects that the control panel temperature is abnormal (exceeds the set temperature range), the thermistor transmits the signal to the heating tube driving circuit 15, the heating tube driving circuit 15 controls the heating tube to stop heating, and the heating panel temperature starts to drop. The setting of the thermistor automatically realizes the over-temperature control.
[0039] In one embodiment, a rotation speed detection module 18 and a fan interface 19 are also provided on the control panel, and the fan communicates with the control panel through the fan interface 19.
[0040] The rotation speed detection module 18 mainly receives the motor side Hall switch to realize detection of the rotation speed of the fan blade and to judge whether the motor is normally running. When the fan motor fails, the heating tube heating will run in a low-power state or stop heating. After the rotation speed detection module receives the signal, a rotation speed detection digital square wave will be generated, the frequency range is 0-50HZ, the high level is 3.3V, and the low level is 0V. The digital square wave is transmitted to the Internet of Things chip ESP32-C3 through L7.
[0041] When the warmer is in the normal temperature range, the fan rotates normally. When the warmer temperature is too high, the fan rotation speed is abnormal. When the rotation speed detection module 18 detects that the fan rotation speed is abnormal, the rotation speed detection module will generate a digital square wave, and the abnormal information is transmitted to the Internet of Things chip 14 through the line L7. After the Internet of Things chip 14 receives the information, the heating tube driving device 15 is controlled according to the fan rotation speed range, so that the heating tube runs in a low-power state or stops heating.
[0042] The setting of the rotation speed detection device further avoids the local temperature of the warmer being too high due to uneven heat dissipation or potential risks of the warmer due to insufficient detection of the thermistor, and improves the safety of the warmer.
[0043] The utility model of the application uses a wireless control method, realizes the switch and temperature high-low adjustment through a wireless controller. The control device can be connected to the home wireless network to realize remote intelligent remote control.
[0044] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited thereto, and various changes can be made within the knowledge range of those skilled in the art without departing from the purpose of the utility model.
Claims
1. A wireless controlled under-desk heater, characterized in that, The heater is provided with a power supply interface for connecting with an external power supply; and a heating pipe is further arranged in the heater. A control board is further arranged in the heater, and the control board is provided with a power conversion module, a zero point detection module, an Internet of Things chip, a heating pipe driving device and a thermistor. The external power supply is converted into system working power supply by the power conversion module; the zero point detection module generates a digital square wave with a certain frequency after receiving a signal, and the digital square wave is communicated with the Internet of Things chip; the Internet of Things chip is in signal communication with the heating pipe driving device; the thermistor is arranged in the heating pipe driving device and is in bidirectional communication with the heating pipe driving device; the signal generated by the signal source is transmitted to the heating pipe through the control board to control the heating pipe to normally heat or stop heating.
2. The wireless controlled under-the-desk heater according to claim 1, characterized in that, A rotating speed detection module and a fan interface for connecting a fan are further arranged on the control board; when the rotating speed detection module detects that the rotating speed of the fan is abnormal, the rotating speed detection module generates a rotating speed detection digital square wave and transmits abnormal information to the Internet of Things chip through a channel; the Internet of Things chip receives the information and can control the heating pipe to be in a low-power running state or a stop state.
3. The wireless controlled under-the-table heater according to claim 1, wherein, The external power supply is 220V, and the system working power supply is 3.3V.
4. The wireless controlled console heater of claim 1, wherein, The zero point detection module generates a digital square wave with a frequency of 50HZ.
5. The wireless controlled under-the-table heater according to claim 2, wherein, The high level of the rotating speed detection digital square wave is 3.3V, the low level is 0, and the duty cycle is 50%.
6. The wirelessly controllable table-side heater of claim 1, wherein, The Internet of Things chip is an ESP32-C3 chip or a TYWE series chip.
7. The wireless controlled under-the-table heater according to claim 6, characterized in that The signal transmission mode of the Internet of Things chip is Bluetooth or Wi-Fi.