CN2756127Y

CN2756127Y - Automobile electric heating cup using indication lamp display temperature

Info

Publication number: CN2756127Y
Application number: CN 200420086591
Authority: CN
Inventors: 魏燕定; 吕永桂; 胡洪泽
Original assignee: Hongfan Electronic Machinery & Appts Co Ltd Wuyi Zhejiang; Zhejiang University ZJU
Current assignee: Hongfan Electronic Machinery & Appts Co Ltd Wuyi Zhejiang; Zhejiang University ZJU
Priority date: 2004-12-28
Filing date: 2004-12-28
Publication date: 2006-02-08
Anticipated expiration: 2014-12-28

Abstract

The utility model discloses an automobile electric heating cup which adopts an indication lamp to display temperature. The automobile electric heating cup which adopts an indication lamp to display temperature comprises an upper cover, an inner liner, a casing, a handle which is installed on the casing, a thermistor which is installed outside the large cylindrical surface of the inner liner, and an electric heating wire which is wound outside the small end cylindrical surface of the bottom of the inner liner, wherein the lower part of the handle is provided with a 12V DC power socket; the inner wall of the casing is provided with a buzzer; the casing is provided with a circuit board which measures and controls temperature. The utility model can arbitrarily set heating temperature at intervals of 5 DEG C. within the heating range (35 DEG C. to 70 DEG C.) and is controllable. In addition, the utility model can realize that the real time of set temperature and the heating temperature is displayed through LEDs with different colors. The utility model has the advantages of safety, convenient operation and visual display.

Description

Adopt the automobile electrothermic cup of indicator lamp displays temperature

Technical field

The utility model relates to electric cup, relates in particular to the automobile electrothermic cup to controlled, adjustable, the available different colours indicator lamp of heating-up temperature displays temperature.

Background technology

Along with the continuous development of the modern life, people's temperature to drinking 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 that adopts the indicator lamp displays temperature, can not only heat water in the cup, Jia Re temperature is adjustable, controlled simultaneously, and can show with the different colours indicator lamp in real time.

The technical scheme that its technical problem that solves the utility model adopts is: comprise loam cake, inner bag, shell, be contained in handle on the shell, be contained in outer thermistor of inner bag great circle cylinder and the heating wire outside the small end face of cylinder, inner bag bottom.In the handle bottom 12V Direct current power source socket is housed, outer casing inner wall is equipped with buzzer, and the circuit board that temperature is measured and controlled is housed on shell, and circuit board is stamped enclosing cover outward.

Described circuit board comprises EM78153S single-chip microcomputer, E ²Prom memory 24C021, FET 20N03, thermistor, buzzer make up temp testing controlling system; In circuit board, the P66 of EM78153S single-chip microcomputer, the P67 mouth respectively with resistance R 12, the end of R13 links to each other, resistance R 12, the other end of R13 links to each other with the base stage of triode N4 and triode N5 respectively, the P50 mouth of single-chip microcomputer links to each other with the positive pole of light emitting diode L5 with light emitting diode L1, the P51 mouth links to each other with the positive pole of L6 with light emitting diode L2, the P53 mouth links to each other with the positive pole of light emitting diode L7 with light emitting diode L3, the P53 mouth links to each other with the positive pole of light emitting diode L8 with light emitting diode L4, four light emitting diode L1, L2, L3, L4 all links to each other with the colelctor electrode of triode N4, four light emitting diode L5, L6, L7, L8 all links to each other with the colelctor electrode of triode N5, the P65 mouth of single-chip microcomputer links to each other with the grid of FET 20N03, the P64 mouth of single-chip microcomputer links to each other with 1 pin of buzzer, the P63 mouth of single-chip microcomputer links to each other with the button input, the P51 of single-chip microcomputer, the P52 mouth also respectively with E ²The SDA of prom memory 24C021, SCL pin link to each other, and thermistor RT one end links to each other with resistance R 7, and the other end links to each other with capacitor C 1, and the emitter stage of triode N4, N5 links to each other with the end of resistance R 4, R5 respectively, and the other end of resistance R 4, R5 all links to each other with ground wire.

The useful effect that the utlity model has is: it can be in heated perimeter (35～70 ℃) set heating-up temperatures and controlled arbitrarily every 5 ℃, and can realize design temperature and heating-up temperature in real time with the diode displaying of different colours; Has advantage safe and reliable, easy to operate, intuitive display.

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.

1. loam cakes among the figure, 2. inner bag, 3. shell, 4. handle, 5. buzzer, 6.12V Direct current power source socket, 7. enclosing cover, 8. thermistor, 9. circuit board, 10. heating wire.

The specific embodiment

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

As shown in Figure 1, the utility model comprises loam cake 1, inner bag 2, shell 3, is contained in handle 4 on the shell 3, is contained in inner bag 2 great circle cylinders outer thermistor 8 and the heating wire 10 outside the small end face of cylinder, inner bag 2 bottom.In handle 4 bottoms 12V Direct current power source socket 6 is housed, shell 3 inwalls are equipped with buzzer 5, and the circuit board 9 that temperature is measured and controlled is housed on shell 3, the circuit board 9 outer enclosing covers 7 that are stamped.

As shown in Figure 2,7 are equipped with a circuit board 9 adjustable, controlled to temperature intelligent in the enclosing cover, and described circuit board 9 comprises EM78153S single-chip microcomputer, E ²Prom memory 24C021, FET 20N03, thermistor, buzzer 5 make up temp testing controlling system; In circuit board 9, the P66 of EM78153S single-chip microcomputer, the P67 mouth respectively with resistance R 12, the end of R13 links to each other, resistance R 12, the other end of R13 links to each other with the base stage of triode N4 and triode N5 respectively, the P50 mouth of single-chip microcomputer links to each other with the positive pole of light emitting diode L5 with light emitting diode L1, the P51 mouth links to each other with the positive pole of L6 with light emitting diode L2, the P53 mouth links to each other with the positive pole of light emitting diode L7 with light emitting diode L3, the P53 mouth links to each other with the positive pole of light emitting diode L8 with light emitting diode L4, four light emitting diode L1, L2, L3, L4 all links to each other with the colelctor electrode of triode N4, four light emitting diode L5, L6, L7, L8 all links to each other with the colelctor electrode of triode N5, the P65 mouth of single-chip microcomputer links to each other with the grid of FET 20N03, the P64 mouth of single-chip microcomputer links to each other with 1 pin of buzzer 5, the P63 mouth of single-chip microcomputer links to each other with the button input, the P51 of single-chip microcomputer, the P52 mouth also respectively with E ²The SDA of prom memory 24C021, SCL pin link to each other, and thermistor RT one end links to each other with resistance R 7, and the other end links to each other with capacitor C 1, and the emitter stage of triode N4, N5 links to each other with the end of resistance R 4, R5 respectively, and the other end of resistance R 4, R5 all links to each other with ground wire.

As shown in Figure 2, temp testing controlling system is by EM78P153S single-chip microcomputer, E ²Prom memory 24C021, FET 20N03, thermistor, buzzer and some other components and parts make up.EM78P153S is 8 single-chip microcomputers 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, counter (TCC) etc. are so can satisfy the requirement of this circuit.

The temperature measurement circuit operation principle is as follows: P60, P61, the P62 with single-chip microcomputer is made as low level output earlier, and capacitor C 1 is discharged to.P61, P62 are made as open-drain, P60 is made as high level, by resistance R 7 and thermistor RT capacitor C 1 is charged, the zero clearing of single-chip microcomputer internal timer also picks up counting, detect P62 mouth state, when the P62 mouth detects high level, when promptly the voltage on the capacitor C 1 reaches the door embedding voltage of single-chip microcomputer high level input, under the single-chip microcomputer 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, capacitor C 1 is discharged to; Again P60, P62 are made as open-drain, P61 is changed to high level, by 1 charging of 8 pairs of capacitor C of resistance R, the zero clearing of single-chip microcomputer internal timer also picks up counting, detect P62 mouth state, when the P62 mouth detects high level, when promptly the voltage on the capacitor C 1 reaches the door embedding voltage of single-chip microcomputer high level input, under the single-chip microcomputer 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 thermistor RT by single-chip microcomputer, 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 35 ℃ to 70 ℃.

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 24C021, before setting, passes through I more next time ²The C communications protocol is read the setting value of last time from memory 24C021.

Claims

1, a kind of automobile electrothermic cup that adopts the indicator lamp displays temperature comprises loam cake (1), inner bag (2), shell (3), is contained in handle (4) on the shell (3), is contained in outer thermistor (8) of inner bag (2) great circle cylinder and the heating wire (10) outside the small end face of cylinder, inner bag (2) bottom; It is characterized in that: in handle (4) bottom 12V Direct current power source socket (6) is housed, shell (3) inwall is equipped with buzzer (5), and the circuit board (9) that temperature is measured and controlled is housed on shell (3), the outer enclosing cover (7) that is stamped of circuit board (9).

2, a kind of automobile electrothermic cup that adopts the indicator lamp displays temperature according to claim 1, it is characterized in that: described circuit board (9) comprises EM78153S single-chip microcomputer, E ²Prom memory 24C021, FET 20N03, thermistor, buzzer (5) make up temp testing controlling system; In circuit board (9), the P66 of EM78153S single-chip microcomputer, the P67 mouth respectively with resistance R 12, the end of R13 links to each other, resistance R 12, the other end of R13 links to each other with the base stage of triode N4 and triode N5 respectively, the P50 mouth of single-chip microcomputer links to each other with the positive pole of light emitting diode L5 with light emitting diode L1, the P51 mouth links to each other with the positive pole of L6 with light emitting diode L2, the P53 mouth links to each other with the positive pole of light emitting diode L7 with light emitting diode L3, the P53 mouth links to each other with the positive pole of light emitting diode L8 with light emitting diode L4, four light emitting diode L1, L2, L3, L4 all links to each other with the colelctor electrode of triode N4, four light emitting diode L5, L6, L7, L8 all links to each other with the colelctor electrode of triode N5, the P65 mouth of single-chip microcomputer links to each other with the grid of FET 20N03, the P64 mouth of single-chip microcomputer links to each other with 1 pin of buzzer (5), the P63 mouth of single-chip microcomputer links to each other with the button input, the P51 of single-chip microcomputer, the P52 mouth also respectively with E ²The SDA of prom memory 24C021, SCL pin link to each other, and thermistor RT one end links to each other with resistance R 7, and the other end links to each other with capacitor C 1, and the emitter stage of triode N4, N5 links to each other with the end of resistance R 4, R5 respectively, and the other end of resistance R 4, R5 all links to each other with ground wire.