CN212457444U

CN212457444U - Non-contact water heater control device

Info

Publication number: CN212457444U
Application number: CN202021309990.4U
Authority: CN
Inventors: 赵小林
Original assignee: Wuxi Hejing Intelligent Technology Co ltd
Current assignee: Wuxi Hejing Intelligent Technology Co ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-02-02
Anticipated expiration: 2030-07-07

Abstract

The utility model discloses a non-contact water heater control device, including the control box that is used for being connected with the water heater, the fixed mounting has the circuit board in the control box, and the tin welding has memory, singlechip, ultrasonic sensor and battery on the circuit board, and ultrasonic sensor is last including VCC, GND, RXD and TXD four pins, and the VCC pin is connected +5V voltage, and the TXD pin electric connection has the signal emission end, and the RXD pin electric connection has the signal receiving end; the utility model discloses a through the control mode who adopts non-contact, avoided using the hand of moist area water to go touch switch, stopped the possibility of electric shock, not only safety, it is convenient, utilize the ultrasonic wave to survey the calculation to human action and distance, through the information that the body language passed out, can control the operating condition of water heater within the specified distance range, surpass the scope of regulation, then not allow the operation, guarantee the real-time and the security of water heater.

Description

Non-contact water heater control device

Technical Field

The utility model particularly relates to a water heater control technical field especially relates to a non-contact water heater controlling means.

Background

The water heater controller is an important key component and a core control component which are widely applied to household appliances. The existing water heater controller circuit is generally divided into three types: a conventional touch key mode is characterized in that the mechanical key is used for mechanically changing high and low level control; one is a spring button touch mode, and a sensitivity control mode is carried out through a touch chip; one is that the touch membrane adds the plastic casing, through touching the chip, carry on the control mode of the degree of sensitiveness; the three modes are widely used at present, but all the modes have the defects that the installation is limited in realizing the control mode, and the installation has one mechanical life.

Based on the consideration, the non-contact type water heater controller has obvious advantages and foresight by adopting a non-contact type control interaction mode and utilizing an ultrasonic control mode, and the non-contact type water heater controller is a trend and can be better applied and developed in the water heater controller.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a non-contact water heater control device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: and the action information of the human body is collected by utilizing ultrasonic waves and is compared with the action data in the memory, and the action purpose of the human body at the moment is judged, so that whether the water heater is controlled to heat or not is judged.

The utility model provides a non-contact water heater controlling means, includes the control box that is used for being connected with the water heater, fixed mounting has the circuit board in the control box, and the tin welding has memory, singlechip, ultrasonic sensor and battery on the circuit board, including VCC, GND, four pins of RXD and TXD on the ultrasonic sensor, the VCC pin is connected +5V voltage, and TXD pin electric connection has the signal transmitting terminal, and RXD pin electric connection has the signal receiving terminal, including the Q1 amplification unit that is used for enlargiing ultrasonic signal in the signal receiving terminal, including the Q2 amplification unit that is used for enlargiing ultrasonic signal in the signal transmitting terminal, the tin welding has the wave filter that is used for filtering the ultrasonic signal that disturbs on the circuit board, wave filter and.

Furthermore, the Q1 amplifying unit and the Q2 amplifying unit both comprise ultrasonic transistors with three pins, the ultrasonic transistors are soldered on the circuit board, in the Q1 amplifying unit and the Q2 amplifying unit, the first pin of each ultrasonic transistor is connected with a 2.2K resistor, the second pin of each ultrasonic transistor is connected with a GND terminal, and a 10K resistor is connected between the GND terminal and the 2.2K resistor in parallel.

Furthermore, in the Q1 amplifying unit, the third pin of the ultrasonic transistor is connected with R134, and one end of the R134 is connected with +5V voltage.

Furthermore, in the Q2 amplifying unit, the third pin of the ultrasonic transistor is connected with R135, and one end of the R135 is connected with +5V voltage.

The utility model has the advantages that:

1. through the control mode who adopts non-contact, avoided using the hand of moist area water to go touch switch, stopped the possibility of electric shock, not only safety, it is convenient, more can bring brand-new visual experience and the security body sense of non-contact control for the customer.

2. Through a non-contact control mode and an ultrasonic control technology, the action of a human body is detected by ultrasonic waves without the contact of an object or a human body part, the working state of the water heater can be controlled within a specified distance range through information transmitted by body language, and if the working state exceeds the specified range, the operation is not allowed, so that the real-time performance and the safety of the water heater are ensured.

3. The ultrasonic wave signal is further amplified through the Q1 amplifying unit and the Q2 amplifying unit, so that the ultrasonic detection result is more accurate.

4. By using the filter, the interference of external noise to ultrasonic signals is filtered, so that the device has higher accuracy.

Drawings

Fig. 1 is a schematic use view of a non-contact water heater control device provided by the present invention;

fig. 2 is a schematic sectional structural view of a control box of a non-contact water heater control device provided by the present invention;

fig. 3 is a schematic block diagram of a non-contact water heater control device according to the present invention;

fig. 4 is a schematic structural diagram of a Q1 amplifying unit of a non-contact water heater control device according to the present invention.

In the figure: 1. a control box; 12. a circuit board; 13. an ultrasonic transistor; 14. a single chip microcomputer; 15. a filter; 2. an ultrasonic sensor; 21. a signal transmitting terminal; 22. and a signal receiving end.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. It should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and their meaning in the context of this patent may be understood by those skilled in the art as appropriate.

Referring to fig. 1-4, a non-contact water heater control device comprises a control box 1 connected with a water heater, a circuit board 12 is fixedly installed in the control box 1, and a memory, a single chip microcomputer 14, an ultrasonic sensor 2 and a storage battery are soldered on the circuit board 12; the single chip microcomputer 14 is in the model of AT89C51, the using voltage of the single chip microcomputer is 5V,

a large amount of physical behavior information of the human body and judgment results corresponding to the information are stored in the memory and can be used for information comparison by the device; the storage battery is used for storing and supplying electric quantity to the device;

the ultrasonic sensor 2 comprises four pins of VCC, GND, RXD and TXD, and the VCC pin is connected with +5V voltage; the signal of the ultrasonic sensor 2 is TC40-10T/R, and the ultrasonic sensor is provided with a signal transmitting end 21 and a signal receiving end 22; it should be noted that the TXD pin is electrically connected to the signal transmitting terminal 21, and is used to transmit an ultrasonic signal to determine the human behavior information, and the actual distance from the human body to the device can be calculated according to the round-trip frequency and time of the ultrasonic wave;

the RXD pin is electrically connected with the signal receiving end 22 and used for receiving information transmitted back after ultrasonic waves are detected, an information feedback loop is further arranged between the signal receiving end 22 and the single chip microcomputer 14, and the transmitted information is transmitted back to the single chip microcomputer 14 through the information feedback loop;

the single chip microcomputer 14 calculates and simulates physical actions finished by the human body according to the transmitted information, optimizes data reasonableness, deletes some data with larger deviation, compares the data with information reserved in a memory, and accurately determines the purpose of the action information.

Wherein, it should be explained that, the signal receiving end 22 includes a Q1 amplifying unit for amplifying the ultrasonic signal, the signal transmitting end 21 includes a Q2 amplifying unit for amplifying the ultrasonic signal, the Q1 amplifying unit and the Q2 amplifying unit both include an ultrasonic transistor 13 having three pins, the model of the ultrasonic transistor 13 is KRC246S/FT, the ultrasonic transistor 13 is soldered on the circuit board 12, in the Q1 amplifying unit and the Q2 amplifying unit, the first pin of the ultrasonic transistor 13 is connected with a 2.2K resistor, the second pin is connected with a GND terminal, and a 10K resistor is connected in parallel between the GND terminal and the 2.2K resistor, the 2.2K resistor and the 10K resistor are both discharge resistors, which can avoid the long-time voltage remaining on the capacitor after power failure, in the Q1 amplifying unit, the third pin of the ultrasonic transistor 13 is connected with R134, one end of the R134 is connected with +5V voltage, in the Q2 amplifying unit, the third pin of the ultrasonic transistor 13 is connected with R135, and one end of the R135 is connected with +5V voltage;

the filter 15 for filtering the interference ultrasonic signals is soldered on the circuit board 12, the filter 15 is electrically connected with the ultrasonic sensor 2, and the interference of external noise to the ultrasonic signals is filtered, so that the accuracy of the device is higher.

The working principle of the embodiment is as follows: the water heater is always in a power-on state after being connected with the control box 1, when a person enters a room, the ultrasonic sensor 2 starts to work, the signal transmitting end 21 sends an ultrasonic signal, the ultrasonic signal is amplified by the Q2 amplifying unit and then is used for detecting a human body, the detected ultrasonic wave returns, the ultrasonic wave is filtered by the filter 15 and then is received by the signal receiving end 22, the ultrasonic signal is amplified by the Q1 amplifying unit so that the device has higher accuracy, the ultrasonic signal is transmitted to the single chip microcomputer 14 through an information feedback loop, the single chip microcomputer 14 calculates and simulates physical actions finished by the human body according to the transmitted information, the data reasonableness is optimized, some data with larger deviation are deleted, then the data are compared with information reserved in a memory, the purpose of accurately determining the action information is achieved, and the single chip microcomputer 14 can also calculate the position of the human body at the moment from the device according to the time when the ultrasonic information, if the position is within the preset range, the instructions represented by the behavior information are allowed to be executed, and if the distance calculated from the information fed back by the ultrasonic waves exceeds the preset range, the instructions represented by the behavior information are prohibited from being executed, so that the safety of the device is ensured.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A non-contact water heater control device comprises a control box (1) connected with a water heater, a circuit board (12) is fixedly installed in the control box (1), a memory, a singlechip (14), an ultrasonic sensor (2) and a storage battery are soldered on the circuit board (12), the ultrasonic sensor (2) comprises four pins of VCC, GND, RXD and TXD, the VCC pin is connected with +5V voltage, the TXD pin is electrically connected with a signal transmitting terminal (21), the RXD pin is electrically connected with a signal receiving terminal (22), the ultrasonic signal amplification device is characterized in that a Q1 amplification unit for amplifying ultrasonic signals is arranged in the signal receiving end (22), a Q2 amplification unit for amplifying ultrasonic signals is arranged in the signal transmitting end (21), a filter (15) for filtering interference ultrasonic signals is soldered on the circuit board (12), and the filter (15) is electrically connected with the ultrasonic sensor (2).

2. A non-contact water heater control device as claimed in claim 1, wherein: the Q1 amplifying unit and the Q2 amplifying unit both comprise an ultrasonic transistor (13) with three pins, the ultrasonic transistor (13) is soldered on the circuit board (12), in the Q1 amplifying unit and the Q2 amplifying unit, the first pin of the ultrasonic transistor (13) is connected with a 2.2K resistor, the second pin is connected with a GND terminal, and a 10K resistor is connected between the GND terminal and the 2.2K resistor in parallel.

3. A non-contact water heater control device as claimed in claim 2, wherein: in the Q1 amplifying unit, the third pin of the ultrasonic transistor (13) is connected with R134, and one end of the R134 is connected with +5V voltage.

4. A non-contact water heater control device as claimed in claim 2, wherein: in the Q2 amplifying unit, the third pin of the ultrasonic transistor (13) is connected with R135, and one end of the R135 is connected with +5V voltage.