CN105932640A - Over-temperature protection device for intelligent sanitary appliance - Google Patents
Over-temperature protection device for intelligent sanitary appliance Download PDFInfo
- Publication number
- CN105932640A CN105932640A CN201610518140.7A CN201610518140A CN105932640A CN 105932640 A CN105932640 A CN 105932640A CN 201610518140 A CN201610518140 A CN 201610518140A CN 105932640 A CN105932640 A CN 105932640A
- Authority
- CN
- China
- Prior art keywords
- detector
- circuit
- temperature
- detecting
- temperature protection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
- H02H5/042—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature using temperature dependent resistors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/10—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current additionally responsive to some other abnormal electrical conditions
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention provides an over-temperature protection device for an intelligent sanitary appliance. The over-temperature protection device comprises a detector connected with a heating tube via a circuit, wherein the detector comprises a first detector and a second detector; the first detector is connected with the second detector; the first detector comprises a current detector, a voltage monitor and a temperature detector for detecting the temperature of the heating tube; the current detector, the voltage monitor and the temperature detector are connected with a single chip microcomputer respectively; the single chip microcomputer is connected with a triode; the triode is connected with a circuit breaker; and the circuit breaker is connected with the heating tube via the circuit. The first detector detects the current and voltage conditions of the current circuit and the temperature of the current circuit through the current detector, the voltage monitor and the temperature detector when used, and directly turns off the circuit through the circuit breaker if any condition exceeds the standard.
Description
Technical field
The present invention relates to circuit temperature protection field, a kind of excess temperature for intelligent sanitary appliance
Protection device.
Background technology
Present many sanitary equipment such as toilet is all with electric heating function, if in use
Circuit or heater go wrong, and the situation that temperature heating is too high easily occur, in this case
If user uses accidentally, easily user is produced harm and even cause security incident.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of excess temperature for intelligent sanitary appliance
Protection device.
The present invention solves that the technical scheme that above-mentioned technical problem uses is:
A kind of over-temperature protection device for intelligent sanitary appliance, includes and adds what heat pipe circuit was connected
Detector, described detector includes the first detector and the second detector, described first detector
It is connected with the second detector；Described first detector includes current detecting instrument, voltage monitoring instrument
And for detecting the temperature monitor of heating tube temperature, described current detecting instrument, voltage monitoring
Instrument and temperature monitor are connected with single-chip microcomputer respectively, and described single-chip microcomputer connects audion, institute
Stating audion connection and have chopper, described chopper is connected with adding heat pipe circuit；
Described second detector includes temperature protection circuit, and described temperature protection circuit includes
Circuit for detecting, switch element and peripheral circuit is dissipated in order to control existing heat abstractor
The control chip of heat, described circuit for detecting is connected with control chip by switch element, includes
The critesistor in order to detect described peripheral circuit temperature that neighbouring peripheral circuit is arranged, described in detect
When slowdown monitoring circuit detects the temperature of peripheral circuit beyond preset temperature value by critesistor, pass through
Switch element trigger control chip controls heat abstractor and opens；
Described heat abstractor is radiator fan.
Further, described circuit for detecting also includes comparator and three divider resistances, described
Two divider resistances are connected between power supply and ground after being serially connected, another divider resistance and heat
Quick resistance is connected between power supply and ground after being serially connected, and the electrode input end of described comparator is even
Being connected between two divider resistances being in series, negative input is connected to the dividing potential drop electricity being in series
Between resistance and critesistor.
The invention have the benefit that
By using the over-temperature protection device for intelligent sanitary appliance of the present invention, can detect
Short circuit is directly disconnected when temperature is too high.By the first detector and the collaborative work of the second detector
Make, the success rate of overheat protector of the present invention can be greatly promoted.First monitor and the second detection
Device is connected, and the second monitoring phase threshold temperature is less than the first detector, when reaching the second detector
During threshold temperature, start radiator fan, by the temperature running the current circuit of reduction of fan.
In use, the first detector passes through current detecting instrument, electricity to first detector of the present invention
Pressure monitor and the temperature monitor detection electric current of current circuit, voltage condition and current
Circuit temperature, exceeds standard if there is arbitrary, directly by chopper disconnecting circuit.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the second detector of a kind of detailed description of the invention of the present invention.
In figure: 1 is circuit for detecting, 2 is switch element, and 3 is control chip, and 4 is radiation air
Fan.
Detailed description of the invention
Refer to Fig. 1, a kind of detailed description of the invention of the position present invention.
A kind of over-temperature protection device for intelligent sanitary appliance, includes and adds what heat pipe circuit was connected
Detector, detector includes the first detector and the second detector, described first detector and
Two detectors connect；Described first detector include current detecting instrument, voltage monitoring instrument and
For detecting the temperature monitor of heating tube temperature, described current detecting instrument, voltage monitoring instrument with
And temperature monitor is connected with single-chip microcomputer respectively, described single-chip microcomputer connects audion, described three
Pole pipe connects chopper, and described chopper is connected with adding heat pipe circuit；
Second detector includes temperature protection circuit, and described temperature protection circuit includes detecting
Circuit, switch element and in order to control what peripheral circuit was dispelled the heat by existing heat abstractor
Control chip, described circuit for detecting is connected with control chip by switch element, includes neighbouring
The critesistor in order to detect described peripheral circuit temperature that peripheral circuit is arranged, described detecting electricity
When road detects the temperature of peripheral circuit beyond preset temperature value by critesistor, by switch
Element trigger control chip controls heat abstractor and opens；Heat abstractor 4 is radiator fan.
Circuit for detecting also includes comparator and three divider resistances, said two divider resistance phase
Being connected between power supply and ground after series connection mutually, another divider resistance is serially connected with critesistor
After be connected between power supply and ground, the electrode input end of described comparator is connected to two and is in series
Divider resistance between, negative input be connected to the divider resistance that is in series and critesistor it
Between.
Circuit for detecting 1 includes comparator U, divider resistance R1, divider resistance R2, dividing potential drop electricity
Resistance R3 and critesistor NTC.The opposite end of described divider resistance R1 is respectively connecting to electricity
Source and divider resistance R2, the other end ground connection of divider resistance R2, the positive pole of comparator U is even
It is connected between this divider resistance R1, divider resistance R2.Relative the two of described divider resistance R3
End is respectively connecting to power supply and critesistor NTC, and the other end ground connection of critesistor NTC is also
Just outside dimensions circuit 90 is arranged, and the negative pole of comparator U is connected to divider resistance R3 and temperature-sensitive electricity
Between resistance NTC.The output of comparator U is connected to switch element 2, and as described comparator U
Negative pole input voltage less than positive pole input voltage time, output high potential to switch element 2
And turn on this switch element 2；Otherwise, then switch element 2 is not turned on.Embodiment of the present invention
In, described critesistor NTC is a negative tempperature coefficient thermistor, and its resistance is with the liter of temperature
High and reduce.Switch element 2 is field effect transistor Q, and its grid G is connected to comparator U's
Output, source S ground connection, drain D is connected to control chip 3.When the high electricity of comparator U output
During position, described switch element 2 turns on, and makes control chip 3 be connect by drain D and source S
Ground and be set to electronegative potential, thus send a low level signal to control chip 3.
By using the over-temperature protection device for intelligent sanitary appliance of the present invention, can detect
Short circuit is directly disconnected when temperature is too high.By the first detector and the collaborative work of the second detector
Make, the success rate of overheat protector of the present invention can be greatly promoted.First monitor and the second detection
Device is connected, and the second monitoring phase threshold temperature is less than the first detector, when reaching the second detector
During threshold temperature, start radiator fan, by the temperature running the current circuit of reduction of fan.
In use, the first detector passes through current detecting instrument, electricity to first detector of the present invention
Pressure monitor and the temperature monitor detection electric current of current circuit, voltage condition and current
Circuit temperature, exceeds standard if there is arbitrary, directly by chopper disconnecting circuit.
Claims (2)
1., for the over-temperature protection device of intelligent sanitary appliance, include and add heat pipe circuit and be connected
Detector, it is characterised in that: described detector includes the first detector and the second detector,
Described first detector and the second detector connect；Described first detector includes current detecting
Instrument, voltage monitoring instrument and for detecting the temperature monitor of heating tube temperature, described electric current is examined
Surveying instrument, voltage monitoring instrument and temperature monitor to be connected with single-chip microcomputer respectively, described single-chip microcomputer is even
Being connected to audion, described audion connects chopper, and described chopper connects with adding heat pipe circuit
Connect；
Described second detector includes temperature protection circuit, and described temperature protection circuit includes
Circuit for detecting, switch element and peripheral circuit is dissipated in order to control existing heat abstractor
The control chip of heat, described circuit for detecting is connected with control chip by switch element, includes
The critesistor in order to detect described peripheral circuit temperature that neighbouring peripheral circuit is arranged, described in detect
When slowdown monitoring circuit detects the temperature of peripheral circuit beyond preset temperature value by critesistor, pass through
Switch element trigger control chip controls heat abstractor and opens；
Described heat abstractor is radiator fan.
Over-temperature protection device for intelligent sanitary appliance the most according to claim 1, its feature
It is: described circuit for detecting also includes comparator and three divider resistances, said two dividing potential drop
Resistance is connected between power supply and ground after being serially connected, another divider resistance and critesistor phase
Being connected between power supply and ground after series connection mutually, the electrode input end of described comparator is connected to two
Between the divider resistance being in series, negative input is connected to divider resistance and the temperature-sensitive being in series
Between resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610518140.7A CN105932640A (en) | 2016-07-04 | 2016-07-04 | Over-temperature protection device for intelligent sanitary appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610518140.7A CN105932640A (en) | 2016-07-04 | 2016-07-04 | Over-temperature protection device for intelligent sanitary appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105932640A true CN105932640A (en) | 2016-09-07 |
Family
ID=56830248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610518140.7A Pending CN105932640A (en) | 2016-07-04 | 2016-07-04 | Over-temperature protection device for intelligent sanitary appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105932640A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605779A (en) * | 2017-07-24 | 2018-01-19 | 江苏里尔电子科技有限公司 | A kind of control circuit for being used for the fan for charger cooling |
| CN108306258A (en) * | 2018-04-04 | 2018-07-20 | 奥然生物科技（上海）有限公司 | A kind of excess temperature detection circuit and thermal-shutdown circuit for heater |
| CN108574265A (en) * | 2017-03-13 | 2018-09-25 | 鸿富锦精密工业（深圳）有限公司 | Temperature protection circuit |
| CN109526069A (en) * | 2018-11-14 | 2019-03-26 | 深圳市国赛生物技术有限公司 | Overtemperature protection circuit and on-site rapid inspection instrument |
| CN112532222A (en) * | 2020-12-22 | 2021-03-19 | 洛阳市烟草公司汝阳县分公司 | Educate seedling tray temperature protection signal anti-shake circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109864A (en) * | 2009-12-28 | 2011-06-29 | 鸿富锦精密工业（深圳）有限公司 | Temperature control circuit |
| CN103036203A (en) * | 2011-10-10 | 2013-04-10 | 鸿富锦精密工业（深圳）有限公司 | Protection circuit |
| CN103425152A (en) * | 2012-05-21 | 2013-12-04 | 海洋王（东莞）照明科技有限公司 | Temperature control circuit of incubator |
| CN204626593U (en) * | 2015-05-14 | 2015-09-09 | 厦门科牧智能技术有限公司 | A kind of water outlet anti-scalding protection device of the electronic toilet |
| CN205080448U (en) * | 2015-10-27 | 2016-03-09 | 广东亿能电力工程有限公司 | Exchange mutual -inductor detection circuitry |
-
2016
- 2016-07-04 CN CN201610518140.7A patent/CN105932640A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109864A (en) * | 2009-12-28 | 2011-06-29 | 鸿富锦精密工业（深圳）有限公司 | Temperature control circuit |
| CN103036203A (en) * | 2011-10-10 | 2013-04-10 | 鸿富锦精密工业（深圳）有限公司 | Protection circuit |
| CN103425152A (en) * | 2012-05-21 | 2013-12-04 | 海洋王（东莞）照明科技有限公司 | Temperature control circuit of incubator |
| CN204626593U (en) * | 2015-05-14 | 2015-09-09 | 厦门科牧智能技术有限公司 | A kind of water outlet anti-scalding protection device of the electronic toilet |
| CN205080448U (en) * | 2015-10-27 | 2016-03-09 | 广东亿能电力工程有限公司 | Exchange mutual -inductor detection circuitry |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108574265A (en) * | 2017-03-13 | 2018-09-25 | 鸿富锦精密工业（深圳）有限公司 | Temperature protection circuit |
| CN107605779A (en) * | 2017-07-24 | 2018-01-19 | 江苏里尔电子科技有限公司 | A kind of control circuit for being used for the fan for charger cooling |
| CN108306258A (en) * | 2018-04-04 | 2018-07-20 | 奥然生物科技（上海）有限公司 | A kind of excess temperature detection circuit and thermal-shutdown circuit for heater |
| CN108306258B (en) * | 2018-04-04 | 2023-12-29 | 奥然生物科技（上海）有限公司 | Over-temperature detection circuit and over-temperature protection circuit for heater |
| CN109526069A (en) * | 2018-11-14 | 2019-03-26 | 深圳市国赛生物技术有限公司 | Overtemperature protection circuit and on-site rapid inspection instrument |
| CN112532222A (en) * | 2020-12-22 | 2021-03-19 | 洛阳市烟草公司汝阳县分公司 | Educate seedling tray temperature protection signal anti-shake circuit |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160907 |