CN2455948Y - Touch sensor chip program-controlled electric fan - Google Patents

Abstract

A touch sensing chip program control type electric fan structure is characterized in that a touch sensing chip program control circuit board is installed inside an electric fan, a touch signal is input to a program control chip through a touch sensing signal feedback circuit by a human body static sensing end and is subjected to information processing, and then an instruction is sent out to control the electric fan to realize various functions of breeze, light wind, strong wind and rotation stopping. Adopt the utility model discloses, not only convenient to use, reduce cost, operation safety moreover can not produce the spark, reduces mechanical failure.

Description

Touch sensor chip program-controlled electric fan

The utility model relates to an electric fan, in particular to a program-controlled electric fan with a touch sensing chip.

Generally, the switches of electric fans, no matter the keyboard type or button type, are mechanically controlled. The disadvantages are that the mechanical power switch equipment is complex, bulky, prone to failure, high cost, and sparks will be generated during use.

The purpose of the utility model is to provide a touch-sensitive chip program-controlled electric fan, which is not only small in size, low in cost, easy to operate, but also does not generate sparks during use, and has a low failure rate.

The purpose of this utility model is achieved in that:

Inside the electric fan seat frame, install the touch-sensing chip program-controlled circuit board. The touch-sensing chip program-controlled circuit board is composed of touch-sensing terminal, step-down, rectifier, filter circuit, program-controlled chip, touch-sensing signal feedback circuit, thyristor control motor circuit , Motor, AC power live wire end, neutral wire end.

Working principle of the present utility model and circuit connection relation are as follows:

The external AC power supply transmits 220V AC power to the live wire terminal, and after step-down, rectification and filtering circuit, it becomes 6.2V DC power, which is transmitted to the program control chip. At the same time, the 220V AC power is directly transmitted to the touch sensor signal feedback circuit and the motor, and Form a loop with the neutral terminal.

When the human body touches the insulating shell of the electric fan seat frame, the static induction of the human body is input to the input terminals (1), (2), (3), ( 4) After information processing, commands are issued from the output terminals (5), (6), (7), and (8), so that the thyristor controls the motor circuit to control the magnitude or disconnection of the current of the motor according to the commands, thereby Reach the various functions of controlling the electric fan to realize breeze, light wind, strong wind and stop rotating.

Due to the adoption of the utility model, the program control circuit of the touch sensing chip is used to replace the various functions of the mechanical switch to control the various functions of the electric fan, which not only is convenient to use, reduces the cost, but also is safe to operate, does not generate sparks, and reduces mechanical failures.

The structure of the utility model is further described in conjunction with the accompanying drawings and the implementation side.

Accompanying drawing 1 is the schematic circuit diagram of the utility model.

Accompanying drawing 2 is that the utility model uses reference drawing.

In the figure: 1, 2, 3, 4 are the input terminals of the program-controlled chip; 5, 6, 7, 8 are the output terminals of the program-controlled chip; 10, the touch sensor chip is connected to the circuit board; 11, the touch sensor terminal; 12, the AC 13. Zero line terminal; 14. Motor; 15. SCR control motor circuit; 16. Step-down, rectification, filter circuit, 18. Program-controlled chip; 19. Touch sensor signal feedback circuit.

Example:

In the inside of the electric fan seat frame (9), a touch-sensitive chip program-controlled circuit board (10) is installed, and the touch-sensitive chip program-controlled circuit board (10) is composed of a touch-sensitive terminal (11), step-down, rectifier, filter circuit (16), It consists of a program-controlled chip (18), a touch-sensing signal feedback circuit (19), a thyristor-controlled motor circuit (15), a motor (14), an AC power supply live wire terminal (12), and a neutral wire terminal (13).

Working principle of the present utility model and circuit connection relation are as shown in Figure 1:

The external AC power supply sends 220V AC power to the live wire terminal (12), and after step-down, rectification, and filter circuit (16), it becomes 6.2V DC power and sends it to the program-controlled chip (18). At the same time, the 220V AC power is also directly sent to the touch The difference between the induction signal feedback circuit (19) and the motor (14) forms a loop with the neutral terminal (13).

When the human body touches the insulating shell of the electric fan stand (9), the electrostatic induction of the human body is input to the input terminal (1) of the program-controlled chip (18) through the touch-sensitive signal feedback circuit (19) by the touch-sensitive terminal (11). (2), (3), (4), after information processing, send instruction from output terminal (5), (6), (7), (8), make thyristor control motor circuit (15) control motor (14) the size and disconnection of the current, so as to achieve the various functions of controlling the electric fan to realize breeze, light wind, strong wind and stop rotating.

Claims (2)

1, touch sensible chip program control type electric fan, form by fan page or leaf, motor, mounting, it is characterized in that: inside in electric fan mounting (9), touch sensible chip programme-controlled circuit plate (10) is installed, and touch sensible chip programme-controlled circuit plate (10) is made up of touch sensible end (11), step-down, rectification, eliminator (16), program control chip (18), touch sensible signal feedback circuit (19), SCR control motor circuit (15), motor (14), ac power supply live wire end (12), zero line side (13).

2, touch sensible chip program control type electric fan according to claim 1, it is characterized in that: after external AC power supply flows to live wire end (12), process step-down, rectification, eliminator (16) to the 220V Ac, the direct current that becomes 6.2V flows to program control chip (18), simultaneously, the 220V Ac also directly flows to touch sensible signal feedback circuit (19) and motor (14), and difference forms the loop with zero line side (13).