CN104571196B - A kind of time and the electric heating tube of temperature-controllable - Google Patents
A kind of time and the electric heating tube of temperature-controllable Download PDFInfo
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- CN104571196B CN104571196B CN201410076714.0A CN201410076714A CN104571196B CN 104571196 B CN104571196 B CN 104571196B CN 201410076714 A CN201410076714 A CN 201410076714A CN 104571196 B CN104571196 B CN 104571196B
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Abstract
The invention discloses a kind of time and the electric heating tube of temperature-controllable, including wire 1, electrothermal tube 2, relay 3, the controllable electric heating tube of temperature and time also includes control module 4 and temperature sensor 5；Wire 1 is used to switch on power, the link control module 4 of wire 1, the device for being provided with regulation temperature and time of control module 4；The circuit structure of the controllable electric heating tube of temperature and time includes live wire（High potential）Input 7, zero line（Ground wire）Input 6 and live wire input 7 and zero line input 6 are connected by wire 1；Temperature sensor 5 is thermocouple sensor or the electric resistance sensor of positive temperature coefficient or the electric resistance sensor of negative temperature coefficient.Compared with prior art, the present invention has advantages below：The temperature and time of heating can be controlled.The efficiency of heating is improved, meets the needs of different heating temperature, saves energy consumption, and implementation is simple.
Description
Technical field
The present invention relates to electric heating equipment field, more particularly to the electric heating tube of a kind of time and temperature-controllable.
Background technology
Electrothermal tube is the electric elements for specially converting electrical energy into heat energy, easy to use because its is cheap, installation side
Just, it is pollution-free, it is widely used in various heating occasions.Electrothermal tube is a kind of conventional electric heater unit in daily life,
It is generally used for the heating such as vacuum flask.Usual electrothermal tube typical structure is typically by insulator, joint filling material, eduction rod, inserts, electricity
The part such as heated filament, protective metal shell pipe, terminals forms.But common heating tube simply simply heats to liquid, not
To heating the temperature of liquid, the heat time is controlled.So shortcoming is apparent：Heat time can not control, and cause to heat
Excessively, liquid, which may be dryouied, causes heating tube dry combustion method, or even damage heating tube；Heating-up temperature can not control, it is impossible to meet not
It is too high with the needs of heating-up temperature, or liquid heating-up temperature, cause the wasting of resources.
The content of the invention
In view of the above-mentioned problems existing in the prior art, the present invention proposes the electric heating tube of a kind of time and temperature-controllable, with
Solve the above problems.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of time and the electric heating tube of temperature-controllable, including wire 1, electrothermal tube 2, relay 3；The temperature and time
Controllable electric heating tube also includes control module 4 and temperature sensor 5；The wire 1 is used to switch on power, the wire
1 link control module 4, the device for being provided with regulation temperature and time of the control module 4；The temperature sensor 5 includes
Measurement end 501, the liquid that the measurement end 501 must be heated flood.
The temperature sensor 5 is thermocouple sensor or electric resistance sensor.The temperature sensor 5 is positive temperature coefficient
Electric resistance sensor or negative temperature coefficient electric resistance sensor.
The circuit structure of the controllable electric heating tube of the temperature and time includes live wire（High potential）Input 7, zero line（Ground
Line）Input 6；The input 6 and live wire input 7 and zero line input 6 are connected by wire 1；The control module 4 is necessary
With live wire（High potential）Input 7 connects.
The control module 4 includes ginseng first and examines voltage input end 401, the second reference voltage input terminal 402, TEMP
Device signal input part 403, the first temp control switch 405, second temperature controlling switch 406, comparator 407 and comparator 408,
Timing module 409, logic module output 410 and output end 404；First reference voltage input terminal 401 and described second
Reference voltage input terminal 402 is respectively connecting to the positive input of the comparator 407 and the comparator 408；The temperature
The voltage signal of sensor passes through first temp control switch 405 and the second temperature controlling switch by input 403
406 are respectively connecting to the inverting input of the comparator 407 and the comparator 408；The comparator 407, the comparison
The output signal of device 408 and the timing module 409 inputs to the logic module output 410；Logic module output 410 it is defeated
Go out signal to export by the output end 404.
The control module 4 includes ginseng first and examines voltage input end 401, the second reference voltage input terminal 402, TEMP
Equivalent resistance 403 ', divider resistance 404 ', the first temp control switch 405, second temperature controlling switch 406, the comparator of device
407 and comparator 408, timing module 409, logic module output 410 and output end 411；The first reference voltage input
End 401 and second reference voltage input terminal 402 are respectively connecting to the forward direction of the comparator 407 and the comparator 408
Input；The temperature sensor equivalent resistance 403 ' one terminates power vd D, and another termination divider resistance 404 ' is described
The other end ground connection of divider resistance 404 '；One end that the temperature sensor equivalent resistance 403 ' is connected with divider resistance 404 ' leads to
Cross first temp control switch 405 and the second temperature controlling switch 406 is respectively connecting to the comparator 407 and institute
State the inverting input of comparator 408；The output letter of the comparator 407, the comparator 408 and the timing module 409
Number input to the logic module output 410；The output signal of logic module output 410 is exported by the output end 411.
First temp control switch 405 and the second temperature controlling switch 406 are mechanical switch；The control mould
Also include timing module 409 in block, the timing module 409 is simple mechanical timing structure, exports electric signal.
Relative to the logic module output 410, the comparator 407, the comparator 408 and the timing module
409 input between the signal of logic module output 410 be logical "and" relation；I.e.：As long as the comparator 407, institute
It is low level to state comparator 408 and the timing module 409 their any one outputs, their output signals can make described in patrol
The output end 404 for collecting output module 410 controls electrothermal tube 2 to power off by relay 3, stops heating；The logic output
Module 410 is common logic circuit；The logic module output 410 is 3 inputs and door.
Compared with prior art, the present invention has advantages below：
A kind of heating tube of timing constant temperature control of the present invention, can be controlled to the temperature and time of heating.Improve
The efficiency of heating, meet the needs of different heating temperature, save energy consumption, and implementation is simple.
Brief description of the drawings
Fig. 1 is the electric heating tube schematic appearance of a kind of time proposed by the present invention and temperature-controllable.
Fig. 2 is a kind of electrical block diagram for the electric heating tube that the present invention proposes time and temperature-controllable.
Fig. 3 is the schematic diagram of control module in the electric heating tube circuit structure of the invention for proposing a kind of time and temperature-controllable
（Thermocouple sensor）.
Fig. 4 is the schematic diagram of control module in the electric heating tube circuit structure of the invention for proposing a kind of time and temperature-controllable
（Electric resistance sensor）.
Embodiment
The present invention is made further in detail, intactly to illustrate with reference to embodiment and accompanying drawing.
The controllable electric heating tube schematic appearance of temperature and time proposed by the present invention as shown in Figure 1.The heating tube
Including wire 1, electrothermal tube 2, relay 3, control module 4 and temperature sensor 5.
The course of work is specially：Wire 1 switches on power, and the temperature and time of adjustment control module 4 is set, adjustment control mould
Block 4 is begun to warm up by control relay 3 to the power supply of heating tube 2.The measurement end 501 of temperature sensor 5 will must be added simultaneously
The liquid of heat floods, so as to measurement temperature.If heating-up temperature or time reach default requirement, heating stops.Here temperature
Degree sensor 5 is thermocouple sensor.Thermocouple sensor can export temperature transition for voltage signal.
The circuit structure of heating tube is as shown in Fig. 2 including live wire（High potential）Input 7, zero line（Ground wire）Input 6,
Electrothermal tube 2, control module 4 and temperature sensor 5.Live wire input 7 and zero line input 6 are connected by the wire 1 in Fig. 1
Connect.It is pointed out that control module 4 must be connected on live wire（High potential）The side of input 7.Advantage of this is that：Such as
Tab phenolphthaleinum line 1 switches on power, and control module 4 can disconnect the connection of electrothermal tube 2 and temperature sensor 5 and live wire, is got an electric shock with reducing
Or the risk of electric leakage.Circuit structure should also include necessary voltage transformation module（Such as：Direct current delivers stream）And relay 3,
They do not draw in circuit structure diagram shown in Fig. 2.
When temperature sensor is thermocouple sensor, the control module schematic diagram in circuit structure is as shown in Figure 3.Including
One reference voltage input terminal 401, the second reference voltage input terminal 402, temperature sensor signal input 403, the first temperature control
System switch 405, second temperature controlling switch 406（Here switch 405,406 is mechanical switch, can be set manually）, compare
Device 407 and comparator 408, timing module 409, logic module output 410 and output end 404.First reference voltage input terminal
401st, the second reference voltage input terminal 402 is respectively connecting to connect the positive input of comparator 407 and comparator 408；Temperature passes
The voltage signal of sensor is connected respectively by input 403 by the first temp control switch 405 and second temperature controlling switch 406
To comparator 407 and the inverting input of comparator 408；The output signal of comparator 407, comparator 408 and timing module 409
Input to logic module output 410.The output signal of logic module output 410 is exported by output end 404.
The course of work is as follows：Temperature sensor 5（Thermocouple sensor）The temperature inversion of liquid is passed through for voltage signal
Temperature sensor signal input 403 inputs to comparator.First temp control switch 405 or second temperature control are set manually
Switch 406, makes comparator 407 or the cut-in operation state of comparator 408.And the first reference voltage input terminal 401 and the second reference
Voltage input end 401 connects different reference voltages, for detecting two different temperatures of liquid.Such as state of temperature can be set
For high-temperature temperature state or cryogenic temperature state respectively, they are correspondingly arranged two different reference voltages.Assuming that the first reference
The reference voltage level of the corresponding cryogenic temperature state of voltage input end 401,402 corresponding high-temperature temperature shape of the second reference voltage input terminal
The reference voltage level of state, when the first temp control switch 405 is arranged to connect, second temperature controlling switch 406 is arranged to disconnect,
Now electrothermal tube is operated in low-temperature condition, if liquid is heated above default cryogenic temperature, by temperature sensor 5（Thermoelectricity
Even sensor）The voltage of detection temperature conversion will be greater than the magnitude of voltage of the first reference voltage input terminal 401, and comparator 407 will be defeated
The low level signal gone out controls electric heating to logic module output 410, the output end 404 of logic module output 410 by relay 3
Pipe 2 stops heating.Hot operation process is similar with above-mentioned low-temperature working process, and difference is to be arranged on the first temp control switch
405 are arranged to disconnect, and second temperature controlling switch 406 is arranged to connect.The difference of such high temperature and low temperature, which is set, to expire
The demand that sufficient people heat for different liquids.For example, if the water of heating will be drunk and can be arranged on the condition of high temperature, water can be with
It is boiled；If the water to be heated is used only to wash one's face and rinse one's mouth, low-temperature condition only need to be arranged on.Such setting can reduce
Power consumption, save resource.It should be noted that the first temp control switch 405 and second temperature controlling switch 406 can not be beaten simultaneously
Open, to avoid heating tube from being operated in unsure state.
When temperature sensor is electric resistance sensor, the control module schematic diagram in circuit structure is as shown in Figure 4.Here with figure
3 equivalent resistance 403 ' that the difference is that only temperature sensor（Herein temperature sensor can with it is equivalent be considered as one with
The resistance of temperature change）, further need exist for divider resistance 404 '.Temperature sensor 403 '（Resistance is equivalent to herein）One termination
Power vd D, another termination divider resistance 404 ', the other end ground connection of divider resistance 404.Remainder is identical with Fig. 3.
The course of work is as follows：Temperature sensor 5（Here by taking the electric resistance sensor of negative temperature coefficient as an example）By the temperature of liquid
Translated resistance value 403 ' is spent, after this resistance is connected with divider resistance 404 ', passes through the first temp control switch 405 and the second temperature
Degree controlling switch 406 is connected to comparator.I.e.：Power vd D connects through divider resistance 404 ' with the equivalent resistance of temperature sensor 5
Partial pressure afterwards, the partial pressure value on divider resistance 404 ' input to comparator.
First temp control switch 405 or second temperature controlling switch 406 are set manually, make comparator 407 or comparator
408 cut-in operation states.And the first reference voltage input terminal 401 and the second reference voltage input terminal 401 connect different reference electricity
Pressure, for detecting two different temperatures of liquid.Such as state of temperature can be set for high-temperature temperature state or low temperature temperature respectively
Degree state, they are correspondingly arranged two different reference voltages.Assuming that 401 corresponding cryogenic temperature shape of the first reference voltage input terminal
The reference voltage level of state, the reference voltage level of 402 corresponding high-temperature temperature state of the second reference voltage input terminal, when the first temperature control
System switch 405 is arranged to connect, and second temperature controlling switch 406 is arranged to disconnect, and now electrothermal tube is operated in low-temperature condition, such as
Fruit liquid is heated above default cryogenic temperature, by temperature sensor 5（The electric resistance sensor of negative temperature coefficient）Detection temperature
The resistance for the resistance 403 ' being converted into is changed into the resistance of small resistance from big valued resistor, and the partial pressure value of divider resistance 404 ' inputs to ratio
Compared with device.The partial pressure value of divider resistance 404 ' will be greater than the magnitude of voltage of the first reference voltage input terminal 401, and comparator 407 is by output
Low level signal controls electrothermal tube 2 to logic module output 410, the output end 411 of logic module output 410 by relay 3
Stop heating.Hot operation process is similar with above-mentioned low-temperature working process, and difference is to be arranged on the first temp control switch 405
It is arranged to disconnect, second temperature controlling switch 406 is arranged to connect.The difference of such high temperature and low temperature, which is set, can meet people
For different liquids heating demand.For example, if the water of heating, which will be drunk, can be arranged on the condition of high temperature, water can be burnt
Open；If the water to be heated is used only to wash one's face and rinse one's mouth, low-temperature condition only need to be arranged on.Such setting can reduce work(
Consumption, save resource.It should be noted that the first temp control switch 405 and second temperature controlling switch 406 can not be opened simultaneously,
To avoid heating tube from being operated in unsure state.
, it is necessary to make corresponding adjustment to circuit when if temperature sensor 5 is the electric resistance sensor of positive temperature coefficient.
Here just it is not described in detail.
In addition, there is timing module 409 in control module, this module is simple mechanical timing structure, exports electric signal.
Can be as needed, the heat time of liquid is set.
Relative to logic module output 410, comparator 407 and comparator 408, timing module 409 input to logic output
It is the relation of logical "and" between the signal of module 410.That is：As long as comparator 407 and comparator 408, timing module 409
Their any outputs are low level, and their output signals can make the output end 404 of logic module output 410 pass through relay
3 control electrothermal tubes 2 stop heating.Here logic module output 410 is common logic circuit, most simply can be 3
Input and door.
By above-mentioned processing so as to realize the control of the temperature and time of heating tube, the final power consumption for reducing whole system,
Improve job stability.
Claims (5)
1. a kind of controllable electric heating tube of temperature and time, including wire (1), electrothermal tube (2), relay (3), its feature exist
In：The controllable electric heating tube of temperature and time also includes control module (4) and temperature sensor (5)；The wire
(1) be used for switch on power, wire (1) link control module (4), the control module (4) be provided with regulation temperature and when
Between device；The temperature sensor (5) includes measurement end (501), and the liquid that the measurement end (501) must be heated floods
Not yet；The control module (4) includes the first reference voltage input terminal (401), the second reference voltage input terminal (402), temperature and passed
Sensor signal input (403), the first temp control switch (405), second temperature controlling switch (406), first comparator
And the second comparator (408), timing module (409), logic module output (410) and output end (404) (407)；Described
One reference voltage input terminal (401) and second reference voltage input terminal (402) are respectively connecting to the first comparator
(407) and second comparator (408) positive input；The voltage signal of the temperature sensor is believed by temperature sensor
Number input (403) is connected respectively by first temp control switch (405) and the second temperature controlling switch (406)
To the first comparator (407) and the inverting input of second comparator (408)；The first comparator (407), institute
The output signal for stating the second comparator (408) and the timing module (409) inputs to the logic module output (410)；Patrol
The output signal for collecting output module (410) passes through the output end (404) output；The temperature sensor (5) passes for thermocouple
Sensor.
2. a kind of controllable electric heating tube of temperature and time, including wire (1), electrothermal tube (2), relay (3), its feature exist
In：The controllable electric heating tube of temperature and time also includes control module (4) and temperature sensor (5)；The wire
(1) be used for switch on power, wire (1) link control module (4), the control module (4) be provided with regulation temperature and when
Between device；The temperature sensor (5) includes measurement end (501), and the liquid that the measurement end (501) must be heated floods
Not yet；The control module (4) includes the first reference voltage input terminal (401), the second reference voltage input terminal (402), temperature and passed
The equivalent resistance (403) of sensor, divider resistance (404), the first temp control switch (405), second temperature controlling switch
(406), first comparator (407) and the second comparator (408), timing module (409), logic module output (410) and defeated
Go out end (411)；First reference voltage input terminal (401) and second reference voltage input terminal (402) are respectively connecting to
The first comparator (407) and the positive input of second comparator (408)；The equivalent resistance of the temperature sensor
(403) one termination power vd D, another termination divider resistance (404), the other end ground connection of the divider resistance (404)；Institute
The equivalent resistance (403) for stating temperature sensor passes through first temp control switch with one end that divider resistance (404) is connected
(405) and the second temperature controlling switch (406) is respectively connecting to the first comparator (407) and second comparator
(408) inverting input；The first comparator (407), second comparator (408) and the timing module (409)
Output signal input to the logic module output (410)；The output signal of logic module output (410) passes through the output
Hold (411) output；The temperature sensor (5) is electric resistance sensor.
A kind of 3. controllable electric heating tube of temperature and time as claimed in claim 2, it is characterised in that：The TEMP
Device (5) is the electric resistance sensor of positive temperature coefficient or the electric resistance sensor of negative temperature coefficient.
A kind of 4. controllable electric heating tube of temperature and time as claimed in claim 1 or 2, it is characterised in that：The temperature
Include live wire input (7), zero line input (6) with the circuit structure of time controllable electric heating tube；The live wire input
(7) and zero line input (6) is held to be connected by wire (1)；The control module (4) must be connected with live wire input (7).
A kind of 5. controllable electric heating tube of temperature and time as claimed in claim 1 or 2, it is characterised in that：Relative to institute
State logic module output (410), the first comparator (407), second comparator (408) and the timing module
(409) input between the logic module output (410) signal be logical "and" relation；I.e.：As long as described first compares
Their any one outputs of device (407), second comparator (408) and the timing module (409) are low level, and they are defeated
Going out signal can make the output end of the logic module output (410) control electrothermal tube (2) to power off by relay (3),
Stop heating；The logic module output (410) is 3 inputs and door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410076714.0A CN104571196B (en) | 2014-03-04 | 2014-03-04 | A kind of time and the electric heating tube of temperature-controllable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410076714.0A CN104571196B (en) | 2014-03-04 | 2014-03-04 | A kind of time and the electric heating tube of temperature-controllable |
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| Publication Number | Publication Date |
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| CN104571196A CN104571196A (en) | 2015-04-29 |
| CN104571196B true CN104571196B (en) | 2018-01-12 |
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| CN201410076714.0A Active CN104571196B (en) | 2014-03-04 | 2014-03-04 | A kind of time and the electric heating tube of temperature-controllable |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4281544A (en) * | 1978-06-09 | 1981-08-04 | Kabushiki Kaisha Daini Seikosha | Temperature detecting device |
| CN201341249Y (en) * | 2009-01-04 | 2009-11-04 | 韩萱 | Intelligent immersion heater |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9115578D0 (en) * | 1991-07-18 | 1991-09-04 | Bruce Keith J R | Heater for liquid and an electric circuit therefor |
| CN2174227Y (en) * | 1993-12-28 | 1994-08-17 | 北京市顺联电子仪器厂 | Electronic temperature-controlling humidifier |
| JP2812929B2 (en) * | 1996-11-27 | 1998-10-22 | 三立電機株式会社 | Underwater heater for aquarium |
| CN201034383Y (en) * | 2007-04-09 | 2008-03-12 | 谭文胜 | High-fidelity overheating protection circuit for electric water heater |
| US8376611B2 (en) * | 2009-04-14 | 2013-02-19 | O2Micro International Limited | Circuits and methods for temperature detection |
-
2014
- 2014-03-04 CN CN201410076714.0A patent/CN104571196B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4281544A (en) * | 1978-06-09 | 1981-08-04 | Kabushiki Kaisha Daini Seikosha | Temperature detecting device |
| CN201341249Y (en) * | 2009-01-04 | 2009-11-04 | 韩萱 | Intelligent immersion heater |
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| CN104571196A (en) | 2015-04-29 |
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