CN2734089Y

CN2734089Y - Electric heating cup for automobile driver

Info

Publication number: CN2734089Y
Application number: CN 200420091174
Authority: CN
Inventors: 魏燕定; 吕永桂
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2004-10-16
Filing date: 2004-10-16
Publication date: 2005-10-19
Anticipated expiration: 2014-10-16

Abstract

The utility model discloses an electric heating cup for automobile driver, comprising a top cover, a casing, a handle, a thermistor which is arranged outside the cylindrical surface of an inner container and an electric heating wire which is winded on the little-end cylindrical surface of the bottom of the inner container. The handle is provided with a direct current power source socket of 12V, a liquid crystal display screen which can display the water temperature at a real time and the presetting temperature, a circuit board which can measure and control the temperature, a buzzer, and a handle cover. The electric heating cup for automobile driver can optionally preset the controllable heating-up temperature in the heated perimeter (0-100 degrees C), and can display the presetting temperature and the heating-up temperature at a real time. The utility model has the advantages of safety, heating-up temperature resolution (1 degree C), temperature measurement accuracy as 2 degrees C, and easy operation. The direct current power source socket of 12V, the liquid crystal display screen, the circuit board, and the buzzer are arranged on the handle, which improves the efficiency of the assemblage.

Description

A kind of automobile electrothermic cup

Technical field

The utility model relates to electric cup, relates in particular to controlled, adjustable, the displayable a kind of automobile electrothermic cup of heating-up temperature.

Background technology

Along with the continuous development of the modern life, people's temperature to potable water in the running process has had new requirement.Present vehicle-mounted automobile electrothermic cup all is to adopt heating wire to add the mode of mechanical temperature controller, in case be heated to the switching temperature of temperature controller, the mechanical temperature controller switch of just cutting off the electricity supply, thus stop heating.This electric cup can only be realized the heating to the single temperature of water in the cup, can't satisfy real-time demonstration and the adjustable requirement of people to heating-up temperature.

Summary of the invention

In order to overcome the defective of the function singleness that has vehicle-mounted automobile electrothermic cup now, the purpose of this utility model is to provide a kind of automobile electrothermic cup, can not only heat water in the cup, and Jia Re temperature is adjustable, controlled simultaneously, and can show in real time.

The technical scheme that its technical matters that solves the utility model adopts is: comprise loam cake, shell, handle, be contained in thermally dependent resistor, the heating wire outside the small end face of cylinder, inner bag bottom outside the inner bag face of cylinder.Be built-in with the Direct current power source socket of 12V, circuit card, buzzer phone and the handle cover that shows the LCDs of real-time water temperature and design temperature, temperature is measured and controlled at handle.

A circuit card adjustable, controlled to temperature intelligent is installed in the described handle, and this circuit card comprises EM78153S micro controller system, lcd driver HT1621, E ²Prom memory 24C021, field effect transistor 20N03, thermally dependent resistor, buzzer phone make up temp testing controlling system; In circuit card, the P50 of EM78153S micro controller system, P67 mouth link to each other with GATA, WR, the RD mouth of lcd driver HT1621, link to each other with 1 pin of field effect transistor 20N03 among the P65 of micro controller system, the P64 mouth of micro controller system and buzzer phone 1 pin link to each other, the P63 mouth of micro controller system links to each other with the button input end, the P51 of micro controller system, P52 mouth and E ²The SDA of prom memory 24C021, SCL pin link to each other, and thermally dependent resistor RT one end links to each other with resistance R 7, and the other end links to each other with capacitor C 1; The COM0 of lcd driver HT1621, COM1, COM2, SEG0-SEG10 mouth link to each other with LCDs.

The useful effect that the utlity model has is: it can (0～100 ℃) set heating-up temperature and controlled arbitrarily in heated perimeter, and can realize the real-time demonstration of design temperature and heating-up temperature; Has safe and reliable, heating-up temperature resolution (1 ℃), temperature measurement accuracy and is 2 ℃, easy to operate advantage.The utility model is installed on 12V battery socket, LCDs and circuit card, buzzer phone on the handle, has greatly improved efficiency of assembling.

Description of drawings

Fig. 1 is an outward appearance sketch of the present utility model;

Fig. 2 is an observing and controlling circuit temperature schematic diagram of the present utility model;

Fig. 3 is the section displayed map of LCDs;

Fig. 4 is the midship section constructional drawing of handle.

1. loam cakes among the figure, 2. shell, 3.12V Direct current power source socket, 4. LCDs, 5. handle cover, 6. buzzer phone, 7. circuit card, 8. handle, 9. thermally dependent resistor, 10. inner bag, 11. heating wire, 12. square hole, 13. concave stations, 14. platforms, the cylindrical cavity of 15. ladders, the chamber of 16. "T"-shaped structures.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

As shown in Figure 1 and Figure 2, the utility model comprises loam cake 1, shell 2, handle 8, is contained in thermally dependent resistor 9, the heating wire 11 outside the small end face of cylinder, inner bag 10 bottom outside inner bag 10 faces of cylinder.Be built-in with the Direct current power source socket 3 of 12V, circuit card 7, buzzer phone 6 and the handle cover 5 that shows the LCDs 4 of real-time water temperature and design temperature, temperature is measured and controlled at handle 1.

1 is equipped with a circuit card 7 adjustable, controlled to temperature intelligent in the described handle, and this circuit card comprises EM78153S micro controller system, lcd driver HT1621, E ²Prom memory 24C021, field effect transistor 20N03, thermally dependent resistor, buzzer phone make up temp testing controlling system; In circuit card 7, the P50 of EM78153S micro controller system, P67 mouth link to each other with GATA, WR, the RD mouth of lcd driver HT1621, link to each other with 1 pin of field effect transistor 20N03 among the P65 of micro controller system, the P64 mouth of micro controller system and buzzer phone 1 pin link to each other, the P63 mouth of micro controller system links to each other with the button input end, the P51 of micro controller system, P52 mouth and E ²The SDA of prom memory 24C021, SCL pin link to each other, and thermally dependent resistor RT one end links to each other with resistance R 7, and the other end links to each other with capacitor C 1; The COM0 of lcd driver HT1621, COM1, COM2, SEG0-SEG10 mouth link to each other with LCDs.

As shown in Figure 4, one square hole 12 is arranged, be used to be equipped with 12V Direct current power source socket 3 at the handle upper side; On handle top concave station 13 is arranged, be used to lay LCDs 4; Also have a platform 14 on handle top, be used to lay handle cover 5; The chamber 16 of "T"-shaped structure is arranged at the handle middle part, be used for mounting circuit boards 7; In the handle middle and lower part, the cylindrical cavity 15 of a ladder is arranged, be used to lay buzzer phone 6, and can effectively amplify the song of buzzer phone.The material of handle is ABS, and has sprayed one deck rubberbase paint at outside face.

In Fig. 2, temp testing controlling system is by EM78P153S micro controller system, lcd driver HT1621, E ²Prom memory 24C021, field effect transistor 20N03, thermally dependent resistor, buzzer phone and some other components and parts make up.EM78P153S is 8 micro controller systems that adopt low consumption high-speed cmos technology to make, and has 2 groups of two-way I/O mouths, and 8 real-time timing, counting machine (TCC) etc. are so can satisfy the requirement of this circuit.

The temperature measurement circuit principle of work is as follows: P60, P61, the P62 with micro controller system is made as low level output earlier, and C1 is discharged to.P61, P62 are made as open-drain, P60 is made as high level, by R7 and thermally dependent resistor RT C1 is charged, the zero clearing of micro controller system internal timer also picks up counting, detect P62 mouth state, when the P62 mouth detects high level, when promptly the voltage on the C1 reaches the door embedding voltage of micro controller system high level input, under the micro controller system timer record from beginning to be charged to the time T 1 that the P62 mouth changes high level into; Then P60, P61, P62 are made as low level output, C1 is discharged to; Again P60, P62 are made as open-drain, P61 is changed to high level, by R8 C1 is charged, the zero clearing of micro controller system internal timer also picks up counting, detect P62 mouth state, when the P62 mouth detects high level, when promptly the voltage on the C1 reaches the door embedding voltage of micro controller system high level input, under the micro controller system timer record from beginning to be charged to the time T 2 that the P62 mouth changes high level into; By V _c=V _o(1-e ^-T/RC) from the voltage equation of electric capacity: can obtain T1/ (R7+RT)=T2/R8, i.e. RT=T1 * R8/T2-R7 calculates the resistance of thermally dependent resistor RT by micro controller system, and can obtain temperature value by look-up table.

The key circuit principle is as follows: P63 is made as input state, and when key was pressed, P63 put low, thereby changes the value of register, but the utility model range of set temperature is 0 ℃ to 100 ℃.

The liquid crystal display principle is as follows: the utility model has adopted the HT1621LCD actuator, HT1621 is 128 points, core image and multi-functional lcd driver, there are 32 * 4 display random access memories HT1621 inside, map directly to each section of LCD display, adopted 11 * 3 (SEG0-SEG10, COM0-COM2) among 32 * 4 RAM in this circuit altogether.

The design temperature storage principle is as follows: adopted E in the utility model ²Prom memory 24C021 after each button set temperature value finishes, passes through I ²The C communications protocol is stored in setting value among the memory device 24C021, before setting, passes through I more next time ²The C communications protocol is read the setting value of last time from memory device 24C021.

As shown in Figure 3, designed following several sections of LCDs: hundred, ten of temperature value, individual position, decimal place and arithmetic point position, temperature sign, degree centigrade sign, heating icon, temperature are set icon, heating end mark.When pressing the key assignments heating-up temperature, displays temperature is set icon and design temperature; When heating, show water in the cup mild heat icon, when the water in the cup temperature reaches design temperature, show heating end mark and water in the cup temperature.

The material of handle is ABS, and has sprayed one deck rubberbase paint at outside face.

Claims

1, a kind of automobile electrothermic cup comprises loam cake (1), shell (2), handle (8), is contained in thermally dependent resistor (9), the heating wire (11) outside the small end face of cylinder, inner bag (10) bottom outside inner bag (10) face of cylinder; It is characterized in that: be built-in with the Direct current power source socket (3) of 12V, circuit card (7), buzzer phone (6) and the handle cover (5) that shows the LCDs (4) of real-time water temperature and design temperature, temperature is measured and controlled at handle (1).

2, a kind of automobile electrothermic cup according to claim 1 is characterized in that: (1) is equipped with a circuit card adjustable, controlled to temperature intelligent (7) in the described handle, and this circuit card comprises EM78153S micro controller system, lcd driver HT1621, E ²Prom memory 24C021, field effect transistor 20N03, thermally dependent resistor, buzzer phone make up temp testing controlling system; In circuit card (7), the P50 of EM78153S micro controller system, P67 mouth link to each other with GATA, WR, the RD mouth of lcd driver HT1621, link to each other with 1 pin of field effect transistor 20N03 among the P65 of micro controller system, the P64 mouth of micro controller system and buzzer phone 1 pin link to each other, the P63 mouth of micro controller system links to each other with the button input end, the P51 of micro controller system, P52 mouth and E ²The SDA of prom memory 24C021, SCL pin link to each other, and thermally dependent resistor RT one end links to each other with resistance R 7, and the other end links to each other with capacitor C 1; The COM0 of lcd driver HT1621, COM1, COM2, SEG0-SEG10 mouth link to each other with LCDs.

3, a kind of automobile electrothermic cup according to claim 1 is characterized in that: at the handle upper side one square hole (12) is arranged, be used to be equipped with 12V Direct current power source socket (3); Concave station (13) is arranged on handle top, be used to lay LCDs (4); Also have a platform (14) on handle top, be used to lay handle cover (5); The chamber (16) of "T"-shaped structure is arranged at the handle middle part, be used for mounting circuit boards (7); In the handle middle and lower part, the cylindrical cavity (15) of a ladder is arranged, be used to lay buzzer phone (6).