CN206369923U

CN206369923U - A kind of Electronic Paper cumulative timer

Info

Publication number: CN206369923U
Application number: CN201720002108.3U
Authority: CN
Inventors: 卢景华
Original assignee: XIAMEN PEAKS ELECTRICAL CO Ltd
Current assignee: XIAMEN PEAKS ELECTRICAL CO Ltd
Priority date: 2017-01-03
Filing date: 2017-01-03
Publication date: 2017-08-01
Anticipated expiration: 2027-01-03

Abstract

The utility model is related to time set field, particularly a kind of Electronic Paper cumulative timer.The utility model discloses a kind of Electronic Paper cumulative timer, including rectification reduction voltage circuit, for a long time circuit and Electronic Paper, the input termination power of the rectification reduction voltage circuit, power input of the output end of the rectification reduction voltage circuit respectively with for a long time circuit and Electronic Paper is connected, the signal output of for a long time circuit terminates the signal input part of Electronic Paper, to drive Electronic Paper to show for a long time time.Normal display for a long time numerical value is remained to when the utility model is without working power, strong antijamming capability, stability is good, and reliability is high, and simple in construction, and energy consumption and cost are low.

Description

A kind of Electronic Paper cumulative timer

Technical field

The utility model belongs to time set field, more particularly to a kind of Electronic Paper cumulative timer.

Background technology

Cumulative timer is a kind of device for time duration, is widely used in all trades and professions.Traditional cumulative timer is to adopt Mechanical cumulative timer is used, the shortcoming of this cumulative timer is poor anti jamming capability, when external environment vibration is larger, it can be caused to produce Raw error even fails, and reliability is relatively low.

In order to solve the above problems, electronic type cumulative timer is occurred in that, its vibration and interference resistance is strong, but existing electronic type Cumulative timer is usually the display for being used as a long time numerical value with liquid crystal display, display is will be unable to when cumulative timer working power is lacked, even Loss of data is fallen, even if re-powering, and original for a long time data do not have yet, and have impact on its reliability used, or even cause very Bother, although also there are some cumulative timers to be provided with memory function now more, can continue that display is original for a long time to be counted after re-powering According to, but increase memory function can be higher to hardware requirement, adds cost.

The content of the invention

The utility model purpose is that normal display is remained to when one kind is provided to solve the above problems without working power tires out When numerical value, strong antijamming capability, stability is good, and reliability is high, and simple in construction, energy consumption and the low Electronic Paper cumulative timer of cost.

Therefore, the utility model discloses a kind of Electronic Paper cumulative timer, including rectification reduction voltage circuit, for a long time circuit and electronics Paper, the input termination power of the rectification reduction voltage circuit, the output end of the rectification reduction voltage circuit respectively with for a long time circuit and electricity The power input connection of sub- paper, the signal output of for a long time circuit terminates the signal input part of Electronic Paper, to drive electronics Paper shows for a long time time.

Further, the rectification reduction voltage circuit includes rectifier bridge D1, three terminal regulator U4, resistance R1, diode D3, electricity Hold C13, electric capacity C16, electric capacity C17 and electric capacity C18, the input termination power of the rectifier bridge D1, the rectifier bridge D1's is just defeated Go out to hold series resistance R1 to connect three terminal regulator U4 input, the negative output terminal of the rectifier bridge D1 is grounded, the diode D3, Electric capacity C13 and electric capacity C16 parallel connections are followed by between three terminal regulator U4 input and ground, the ground connection of the three terminal regulator U4 End ground connection, the power input of the output end of the three terminal regulator U4 respectively with for a long time circuit and Electronic Paper is connected, the electricity Hold C17 and electric capacity C18 parallel connections are followed by between three terminal regulator U4 output end and ground.

Further, the model HT7133 of the three terminal regulator U4.

Further, for a long time circuit includes PIC single chip microcomputer U5, clock source circuit and reset circuit, the clock source Circuit and reset circuit are connected with PIC single chip microcomputer U5 respectively, and the signal output of the PIC single chip microcomputer U5 terminates the signal of Electronic Paper Input.

Further, the model PIC12F1822 of the PIC single chip microcomputer U5, the clock source circuit includes crystal oscillator Y2, electric capacity C15 and electric capacity C14, the reset circuit include resistance R11, electric capacity C11 and electric capacity C12, the PIC single chip microcomputer U5 Two ends respectively with crystal oscillator Y2 of GP5 pins and GP4 pins be connected, the two ends of the crystal oscillator Y2 pass through electric capacity C15 and electricity respectively Hold C14 ground connection, resistance R11 and electric capacity the C11 series connection is followed by between the output end and ground of rectification reduction voltage circuit, the electric capacity C12 is in parallel with resistance R11 and electric capacity C11, and the GP3 that the node between the resistance R11 and electric capacity C11 meets PIC single chip microcomputer U5 draws Pin, GP0 the and GP1 pins of the PIC single chip microcomputer U5 connect the signal input part of Electronic Paper.

Further, the model E-INK-49PIN of the Electronic Paper.

Advantageous effects of the present utility model：

The utility model carries out for a long time numerical value using Electronic Paper and shown, normal display is remained to during no working power and is for a long time counted Value, strong antijamming capability, stability is good, and reliability is high, and simple in construction, and energy consumption and cost are low.

Brief description of the drawings

Fig. 1 is the circuit theory diagrams of the utility model specific embodiment.

Embodiment

The utility model is further illustrated in conjunction with the drawings and specific embodiments.

A kind of Electronic Paper cumulative timer, including rectification reduction voltage circuit, for a long time circuit and Electronic Paper, the rectification reduction voltage circuit Input termination power（Namely for a long time control signal source）, the output end of the rectification reduction voltage circuit respectively with for a long time circuit and electronics The power input connection of paper, the signal output of for a long time circuit terminates the signal input part of Electronic Paper, to drive Electronic Paper Show for a long time time.

Specifically, as shown in figure 1, the rectification reduction voltage circuit includes rectifier bridge D1, three terminal regulator U4, resistance R1, two Pole pipe D3, electric capacity C13, electric capacity C16, electric capacity C17 and electric capacity C18, three terminal regulator U4 model is preferably HT7133.

The for a long time circuit includes PIC single chip microcomputer U5, clock source circuit and reset circuit, the type of the PIC single chip microcomputer U5 Number it is preferably PIC12F1822, the clock source circuit includes crystal oscillator Y2, electric capacity C15 and electric capacity C14, and the reset circuit includes Resistance R11, electric capacity C11 and electric capacity C12, the model E-INK-49PIN of the Electronic Paper U3.

The input CON1 of the rectifier bridge D1 is connect in power supply, this specific embodiment, preferably 5V power supplys, the rectifier bridge D1 positive output end series resistance R1 connects three terminal regulator U4 input IN, rectifier bridge D1 negative output terminal ground connection, institute State diode D3, electric capacity C13 and electric capacity C16 parallel connections are followed by between three terminal regulator U4 input IN and ground, three end Voltage-stablizer U4 earth terminal GND ground connection, the output end OUT output 3.3V voltages of the three terminal regulator U4, respectively with PIC monolithics Machine U5 power input VDD and Electronic Paper U3 power input VDD connections, while the LOGICEN also with Electronic Paper U3 draws Pin is connected, and electric capacity C17 and electric capacity the C18 parallel connections are followed by between three terminal regulator U4 output end OUT and ground.

Two ends of the GP5 pins and GP4 pins of the PIC single chip microcomputer U5 respectively with crystal oscillator Y2 are connected, the crystal oscillator Y2's Two ends are grounded by electric capacity C15 and electric capacity C14 respectively, and resistance R11 and electric capacity the C11 series connection is followed by three terminal regulator U4's Between output end OUT and ground, the electric capacity C12 is in parallel with resistance R11 and electric capacity C11, between the resistance R11 and electric capacity C11 Node connect PIC single chip microcomputer U5 GP3 pins, the signal that the GP0 and GP1 pins of the PIC single chip microcomputer U5 meet Electronic Paper U3 is defeated Enter and hold SDA and SCL, for a long time numerical signal electron paper U3 is shown for output.

The utility model carries out for a long time numerical value using Electronic Paper U3 and shown, normal display is remained to during no working power and is for a long time counted Value, strong antijamming capability, stability is good, and reliability is high, and simple in construction, and energy consumption and cost are low

Although specifically showing and describing the utility model with reference to preferred embodiment, those skilled in the art should This is understood, is not departing from the spirit and scope of the present utility model that appended claims are limited, in form and details On the utility model can be made a variety of changes, be protection domain of the present utility model.

Claims

1. a kind of Electronic Paper cumulative timer, it is characterised in that：Including rectification reduction voltage circuit, for a long time circuit and Electronic Paper, the rectification The input termination power of reduction voltage circuit, the power supply of the output end of the rectification reduction voltage circuit respectively with for a long time circuit and Electronic Paper is defeated Enter end connection, the signal output of for a long time circuit terminates the signal input part of Electronic Paper, during driving Electronic Paper to show for a long time Between.

2. Electronic Paper cumulative timer according to claim 1, it is characterised in that：The rectification reduction voltage circuit includes rectifier bridge D1, three terminal regulator U4, resistance R1, diode D3, electric capacity C13, electric capacity C16, electric capacity C17 and electric capacity C18, the rectifier bridge D1 Input termination power, the positive output end series resistance R1 of the rectifier bridge D1 connects three terminal regulator U4 input, described whole Bridge D1 negative output terminal ground connection is flowed, the diode D3, electric capacity C13 and electric capacity C16 parallel connections are followed by the defeated of three terminal regulator U4 Enter between end and ground, the earth terminal of three terminal regulator U4 ground connection, the output end of the three terminal regulator U4 respectively with for a long time Circuit and the connection of the power input of Electronic Paper, electric capacity C17 and electric capacity the C18 parallel connections are followed by the output in three terminal regulator U4 Between end and ground.

3. Electronic Paper cumulative timer according to claim 2, it is characterised in that：The model of the three terminal regulator U4 HT7133。

4. Electronic Paper cumulative timer according to claim 1, it is characterised in that：The for a long time circuit include PIC single chip microcomputer U5, Clock source circuit and reset circuit, the clock source circuit and reset circuit are connected with PIC single chip microcomputer U5 respectively, and the PIC is mono- Piece machine U5 signal output terminates the signal input part of Electronic Paper.

5. Electronic Paper cumulative timer according to claim 4, it is characterised in that：The model of the PIC single chip microcomputer U5 PIC12F1822, the clock source circuit include crystal oscillator Y2, electric capacity C15 and electric capacity C14, the reset circuit include resistance R11, Two ends of electric capacity C11 and electric capacity C12, the PIC single chip microcomputer U5 GP5 pins and GP4 pins respectively with crystal oscillator Y2 are connected, described Crystal oscillator Y2 two ends are grounded by electric capacity C15 and electric capacity C14 respectively, and resistance R11 and electric capacity the C11 series connection is followed by dropping in rectification Between the output end and ground of volt circuit, the electric capacity C12 is in parallel with resistance R11 and electric capacity C11, the resistance R11 and electric capacity C11 Between node connect PIC single chip microcomputer U5 GP3 pins, GP0 the and GP1 pins of the PIC single chip microcomputer U5 connect the signal of Electronic Paper Input.

6. Electronic Paper cumulative timer according to claim 1, it is characterised in that：The model E-INK- of the Electronic Paper 49PIN。