CN109168204A - The temprature control method of electric blanket - Google Patents
The temprature control method of electric blanket Download PDFInfo
- Publication number
- CN109168204A CN109168204A CN201810922751.7A CN201810922751A CN109168204A CN 109168204 A CN109168204 A CN 109168204A CN 201810922751 A CN201810922751 A CN 201810922751A CN 109168204 A CN109168204 A CN 109168204A
- Authority
- CN
- China
- Prior art keywords
- electric blanket
- temperature
- duty ratio
- control
- electric
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
- H05B3/342—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heaters used in textiles
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/0252—Domestic applications
- H05B1/0272—For heating of fabrics
Abstract
The present invention relates to a kind of temprature control methods of electric blanket, belong to electric heating control technology field.This method is omitted to the constant temperature closed-loop control of electric blanket and Temperature protection power-off control, and directly to carry out energised in pulses less than the pulse signal of 100% duty ratio control electric blanket；Constant temperature closed-loop control, which refers to, is generated heat by the real time temperature for measuring electric blanket compared with preset constant temperature value to control after electric blanket is powered up, and Temperature protection power-off control, which refers to, to be powered up by the fusing of Thermal Cutoffs to cut off electric blanket.It is completely free of the thermostatic control of existing electric pad and the so-called dual fail-safe controlling mechanism of Temperature protection power-off protection using this method, guarantees electric pad safety in utilization.
Description
Technical field
The present invention relates to a kind of temprature control methods of electric blanket (or pad), belong to electric heating control technology field.
Background technique
The pad or blanket of electric heating or physical therapy have generally used in people's daily life.This electricity heating bed one
As be all constant-temperature temperature-control type, control constant temperature value be set between 25 DEG C ~ 50 DEG C.In this temperature range using be mounted on pad or
For temperature sensor in blanket to heating temperature real-time sampling, sampled value is compared with the temperature value of setting realizes that temperature is adjusted automatically
Section, to reach constant temperature purpose.This temperature control is the mode being commonly used, and a point is generally installed in pad or blanket and is adopted
Sample NTC temperature sensor and a disposable warm Thermal Cutoffs of limit.Once disposable Thermal Cutoffs is limited for NTC failure
Temperature is no more than defined ceiling temperature value, to play the role of protected by temperature limitation.However a disposable Thermal Cutoffs can only be adopted
To the temperature of a point, it cannot reflect the temperature of entire cushion, therefore reliability is had a greatly reduced quality, if installed in cushion more
The certain reliability of disposable Thermal Cutoffs of point increases, but the high and internal cabling of cost of manufacture becomes complicated, technique
On implement it is relatively difficult.When NTC temperature sensor and/or disposable Thermal Cutoffs fail or are not provided with, electric heating
Blanket or blanket, which necessarily will cause, to catch fire.
Summary of the invention
The technical problem to be solved by the present invention is in the protection of no temperature sensor and fuse, it is ensured that electric blanket
Or it does not catch fire when pad use.
In order to solve the above technical problems, the present invention proposes that technical solution is: a kind of temprature control method of electric blanket omits
To the constant temperature closed-loop control of the electric blanket and Temperature protection power-off control, and directly with the pulse signal less than 100% duty ratio
It controls the electric blanket and carries out energised in pulses；The constant temperature closed-loop control is real time temperature by measuring the electric blanket and pre-
The constant temperature value first set, which relatively controls after the electric blanket is powered up, generates heat, and the Temperature protection power-off control is to pass through temperature
The fusing of degree fuse is powered up to cut off the electric blanket.
Further, the duty ratio is by carrying out pulse to the electric blanket with the pulse signal of a variety of duty ratios
The electric pad that power-up obtains reaches the duty ratio of corresponding pulse signal when safe maximum temperature value, and defaults in the electricity
In the controller of hot blanket；The safe maximum temperature value is selected according to artificial experience.
The duty ratio is obtained by following experimental procedure:
1) existing electric blanket is made to measure the disabler or dismounting of itself real time temperature and Temperature protection power-off；
2) it is controlled with the pulse signal of a variety of different duties and carries out energised in pulses to the existing electric blanket；
3) the existing electric blanket is measured to generate heat after the energised in pulses multiple temperature values achieved；
4) maximum temperature value in the multiple temperature value is found out, empirically judge and filters out safe maximum temperature value；
5) pulse signal for finding out the corresponding safe maximum temperature value, obtains the duty ratio of the pulse signal as the duty
Than.
The beneficial effect of the present invention by adopting the above technical scheme is: due to going to cancel (omission) existing electric blanket perseverance completely
Temperature control system (inner loop control of the real time temperature compared with the constant temperature angle value of setting of measurement electric pad) and Thermal Cutoffs
The power-off protection that fuses control, replacing, it is direct to electric pad to be come with duty ratio (particular duty cycle) pulse signal less than 100%
Energised in pulses is carried out to form fever (a kind of outer loop control), which is to be obtained beforehand through electric pad in arteries and veins
Rush the duty ratio of pulse signal when reaching safer maximum temperature under power-up；Therefore in the temperature that can control electric pad
The maximum temperature is maintained to be no more than (whether the maximum temperature safely may be used always always after being raised to a safer maximum temperature
It is determined with rule of thumb artificial)；To thoroughly guarantee electric pad will not because of as existing electric pad only have linear continuous
Lower temperature is powered on to rise too high and formed and caught fire.
The present invention is especially unique to be, for using for the electric pad with the power-up of adjustable duty cycle pulse, this hair
Bright inventor find off the beaten trackly and by experiment confirm the pulse currents of certain range duty ratios to electric pad (or
Blanket) in power supply the maximum temperature that reaches of electric pad be fully achieve a safer temperature (whether safety can root
According to artificial empirically determined safety standard), such and heater strip pulse power supply is found to screen in advance by the method for experiment
Reach the relationship between the duty ratio of the letter of pulse corresponding to safer maximum temperature.Explanation for this relationship is: because
To have heating also to have heat dissipation when electric blanket power-up, when heating is equal to heat dissipation, temperature will be balanced safer most at some
On high-temperature point；Even this balance maximum temperature in the case where no constant temperature feedback closed loop is controlled there is also and maintain
?；For the energised in pulses of different duty, no matter be powered on how long, electric pad always reach one balance a certain
On a safer maximum temperature point, therefore it can select that for corresponding to these safer maximum temperatures by experiment
The duty ratio of a little pulse signals, and energised in pulses is carried out to electric blanket to control with the pulse signal of this duty ratio.
It is based on discovery unique in this way, inventor furthers investigate and passes through and obtains for many years using summary and repetition test
The method for having obtained aforementioned present invention.It can be said that the constant temperature control of existing electric pad can be completely free of using method of the invention
The so-called dual fail-safe controlling mechanism of system and Temperature protection power-off protection, and can guarantee the safety in electric pad use.For existing
Have for electric blanket (or pad), changes not less than for the technology of an essence.
One is further improved, the range of the duty ratio is 20%-60%, and the range of the safe maximum temperature value is 40-
80 DEG C, the corresponding relationship selection of the duty ratio and the safe maximum temperature value is: when the safe maximum temperature value is 40
DEG C when the duty ratio be selected as 20%, when the safe maximum temperature value is 44 DEG C, the duty ratio is selected as 25%, works as institute
State duty ratio when safe maximum temperature value is 55 DEG C and be selected as 50%, when the safe maximum temperature value is 80 DEG C described in
Duty ratio is selected as 60%.
The step of further improving two, can also increasing is: set environment temperature limit simultaneously measures environment real time temperature, when
When the environment real time temperature is more than or equal to the environment temperature limit value, controls the electric blanket and stop power-up.
Three are further improved, the electric blanket also contains negative potential signal.
Detailed description of the invention
The temprature control method of electric blanket of the invention is described further with reference to the accompanying drawing.
Fig. 1 is the circuit diagram of control device used by one control method of embodiment；
Fig. 2 is the circuit diagram of control device used by embodiment two control method.
Specific embodiment
Embodiment one
Control device used by the temprature control method of the present embodiment electric blanket is shown in Figure 1, including in electric blanket
The power supply of heater wire (or silk) power supply, power supply after alternating current 220V access control apparatus through Transformer Rectifier by forming for electricity output.If
There is the second temperature control processor, but does not include that existing electric blanket is commonly used in measurement and controls the first temperature of electric blanket real time temperature
Spend sensor, the first temperature control processor and Thermal Cutoffs.Between power supply and heater wire be equipped with the first electronic switch BTA08-1 and
Second electronic switch BTA08-2 is formed between the first electronic switch BTA08-1 and the second electronic switch BTA08-2 and (is connected with door
Between power supply and heater strip).The input terminal of first electronic switch BTA08-1 and the second electronic switch BTA08-2 pass through optocoupler
TRIAC1 and TRIAC2 is connect with the output end (pin PA5) of the second temperature control processor MCU2 respectively.It is additionally provided with keyboard decoding
Device crosses DECODER KEYBOARD.Duty ratio setting value solidifies in advance to be arranged in the second temperature control processor MCU2, certainly may be used
To pass through DECODER KEYBOARD to the second temperature control processor MCU2 input duty cycle setting value.In this way, the second temperature control is handled
Device MCU2 may be used for output numerical value and control the first electronic switch and the second electronic cutting less than the pulse signal of 100% duty ratio
Close equal alternate conduction and shutdown.Output end J1, J2 of first electronic switch BTA08-1 and the second electronic switch BTA08-2 access
The output end of rectifier Bridge1/RS507, rectifier Bridge1/RS507 connect heater wire RT1/RT2.
The temprature control method of the present embodiment electric blanket is exactly directly to control institute less than the pulse signal of 100% duty ratio
It states electric blanket and directly carries out energised in pulses, to replace constant temperature closed-loop control and the Thermal Cutoffs power-off of current common electric blanket to protect
Shield control；It omits and the constant temperature closed-loop control of electric blanket and Temperature protection is controlled.Constant temperature closed-loop control refers to existing common
The real time temperature for measuring electric blanket is generated heat compared with preset constant temperature value to control after electric blanket is powered up, temperature is protected
Danger control refer to it is existing commonly by Thermal Cutoffs fusing come cut off the heater wire in electric blanket is powered up after send out
Heat.Specific implementation procedure has:
The port PA5 output of starting up, the second temperature control processor MCU2 make less than the low level pulse signal of 100% duty ratio
First electronic switch BTA08-1 and the second electronic switch BTA08-2 is in the state of alternate conduction and shutdown, and power supply is logical at this time
The the first electronic switch BTA08-1 and the second electronic switch BTA08-2 of extra pulse discontinuity conducting are real to heater wire RT1/RT2
Apply energised in pulses.
Duty ratio in the present embodiment is by being carried out with the pulse signal of a variety of duty ratios to the heater wire in electric blanket
The duty ratio of corresponding pulse signal when electric blanket reaches safe maximum temperature value that energised in pulses obtains, and default in second
In temperature control processor MCU2；The general safe maximum temperature value is selected according to artificial experience.The duty ratio is walked by following experiment
It is rapid to obtain:
1) (i.e. dismounting is used for for the disabler or dismounting for so that existing electric blanket is measured itself real time temperature and Temperature protection power-off
The device of real time temperature measurement and Temperature protection)；
2) it is controlled with the pulse signal of a variety of different duties and carries out energised in pulses to the existing electric blanket；
3) heater wire for measuring the existing electric blanket generates heat multiple temperature values achieved after energised in pulses；
4) maximum temperature value in the multiple temperature value is found out, empirically judge and filters out safe maximum temperature value；
5) pulse signal for finding out the corresponding safe maximum temperature value, obtains the duty ratio of the pulse signal as the duty ratio
(duty ratio exported as the second temperature control processor MCU2 in the present embodiment).
The duty cycle range of the present embodiment the second temperature control processor MCU2 output is selected as 20%-60%, safe maximum temperature
The range of value is 40-80 DEG C.Duty ratio specific choice is carried out according to the corresponding relationship of itself and safe maximum temperature value, the two
Corresponding relationship has: can choose duty ratio when safe maximum temperature value is 40 DEG C is 20%, when safe maximum temperature value is 44 DEG C
When can choose duty ratio be 25%, can choose when safe maximum temperature value is 55 DEG C duty ratio be 50%, when safe highest
Temperature value can choose duty ratio when being 80 DEG C be 60%.
Embodiment two
The temprature control method of the present embodiment electric blanket is improvement on the basis of embodiment one, in addition to be the same as example 1 with
It is outer except that:
1) as shown in Fig. 2, the second temperature sensor ResThermal-2 of measurement environment real time temperature is increased, in the second temperature control
Set environment temperature limit in processor MCU2, while environment real time temperature is measured, when environment real time temperature is more than or equal to environment
When temperature limit, controls the electric pad and stop power-up, the environment temperature limit value selection of the present embodiment is 35 DEG C, the environment temperature
Limit value is selected according to artificial experience, is not limited to 35 DEG C；
2) as shown in Fig. 2, increasing negative potential generating unit.After alternating current 220V after multiplication of voltage by exporting to negative potential generating unit
The negative electricity bit line (output port 5 in Fig. 2) being connected in electric pad after multiplication of voltage is exported, to add negative electricity to electric pad
Position, can be used for physical therapy.
Claims (6)
1. a kind of temprature control method of electric blanket, it is characterised in that: omit to the constant temperature closed-loop control of the electric blanket and temperature
Degree insurance power-off control, and directly energised in pulses is carried out to control the electric blanket less than the pulse signal of 100% duty ratio；Institute
It is described to control compared with preset constant temperature value by measuring the real time temperature of the electric blanket for stating constant temperature closed-loop control
Electric blanket generates heat after being powered up, and the Temperature protection power-off control is that the electric heating is cut off by the fusing of Thermal Cutoffs
Blanket is powered up.
2. the temprature control method of electric blanket according to claim 1, it is characterised in that: the duty ratio is by with a variety of
The electric pad that the pulse signal of duty ratio carries out energised in pulses acquisition to the electric blanket reaches safe maximum temperature
The duty ratio of corresponding pulse signal when value, and default in the controller of the electric blanket；The safe maximum temperature value root
It is selected according to artificial experience.
3. the temprature control method of electric blanket according to claim 2, it is characterised in that the duty ratio is according to following reality
Test step acquisition:
1) existing electric blanket is made to measure the disabler or dismounting of itself real time temperature and Temperature protection power-off；
2) it is controlled with the pulse signal of a variety of different duties and carries out energised in pulses to the existing electric blanket；
3) the existing electric blanket is measured to generate heat after the energised in pulses multiple temperature values achieved；
4) maximum temperature value in the multiple temperature value is found out, empirically judge and filters out safe maximum temperature value；
5) pulse signal for finding out the corresponding safe maximum temperature value, obtains the duty ratio of the pulse signal as the duty
Than.
4. the temprature control method of the electric blanket according to Claims 2 or 3, it is characterised in that: the range of the duty ratio is
The range of 20%-60%, the safe maximum temperature value are 40-80 DEG C, pair of the duty ratio and the safe maximum temperature value
Should be related to selection is: when the safe maximum temperature value is 40 DEG C, the duty ratio is selected as 20%, when the safe highest temperature
Angle value when being 44 DEG C the duty ratio be selected as 25%, when the safe maximum temperature value is 55 DEG C, the duty ratio is selected as
50%, when the safe maximum temperature value is 80 DEG C, the duty ratio is selected as 60%.
5. the temprature control method of electric blanket according to claim 4, it is characterised in that also include the steps set environment
Temperature limit simultaneously measures environment real time temperature, when the environment real time temperature is more than or equal to the environment temperature limit value, control
The electric blanket stops power-up.
6. the temprature control method of electric blanket according to claim 5, it is characterised in that the electric blanket also contains negative potential
Signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810922751.7A CN109168204B (en) | 2018-08-14 | 2018-08-14 | Temperature control method of electric blanket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810922751.7A CN109168204B (en) | 2018-08-14 | 2018-08-14 | Temperature control method of electric blanket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109168204A true CN109168204A (en) | 2019-01-08 |
| CN109168204B CN109168204B (en) | 2021-09-07 |
Family
ID=64895585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810922751.7A Active CN109168204B (en) | 2018-08-14 | 2018-08-14 | Temperature control method of electric blanket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109168204B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110740525A (en) * | 2019-10-15 | 2020-01-31 | 北京小米移动软件有限公司 | Method for controlling electric blanket, device for controlling electric blanket and electronic equipment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6770853B2 (en) * | 2002-10-22 | 2004-08-03 | Vector Products, Inc. | PWM controller for DC powered heating blanket |
| US7145108B2 (en) * | 2003-07-22 | 2006-12-05 | Kaz, Incorporated | Configurable heating pad controller |
| CN201682628U (en) * | 2010-05-07 | 2010-12-22 | 吕媛 | Energy saving controller for electric blanket |
| CN202604312U (en) * | 2012-06-27 | 2012-12-19 | 于国有 | Electric blanket |
| CN202664977U (en) * | 2012-06-10 | 2013-01-16 | 浙江榆阳电子有限公司 | Intelligent control DC (direct current) low-voltage electric quilt/blanket and intelligent control circuit thereof |
| CN203858525U (en) * | 2014-05-20 | 2014-10-01 | 国家电网公司 | Heating circuit for electric blanket |
| CN205299854U (en) * | 2015-12-30 | 2016-06-08 | 四川长虹空调有限公司 | Power continuously adjustable electricity heating system |
| CN105739568A (en) * | 2016-03-07 | 2016-07-06 | 四川长虹电器股份有限公司 | Method for controlling electric heater power and heating device |
-
2018
- 2018-08-14 CN CN201810922751.7A patent/CN109168204B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6770853B2 (en) * | 2002-10-22 | 2004-08-03 | Vector Products, Inc. | PWM controller for DC powered heating blanket |
| US7145108B2 (en) * | 2003-07-22 | 2006-12-05 | Kaz, Incorporated | Configurable heating pad controller |
| CN201682628U (en) * | 2010-05-07 | 2010-12-22 | 吕媛 | Energy saving controller for electric blanket |
| CN202664977U (en) * | 2012-06-10 | 2013-01-16 | 浙江榆阳电子有限公司 | Intelligent control DC (direct current) low-voltage electric quilt/blanket and intelligent control circuit thereof |
| CN202604312U (en) * | 2012-06-27 | 2012-12-19 | 于国有 | Electric blanket |
| CN203858525U (en) * | 2014-05-20 | 2014-10-01 | 国家电网公司 | Heating circuit for electric blanket |
| CN205299854U (en) * | 2015-12-30 | 2016-06-08 | 四川长虹空调有限公司 | Power continuously adjustable electricity heating system |
| CN105739568A (en) * | 2016-03-07 | 2016-07-06 | 四川长虹电器股份有限公司 | Method for controlling electric heater power and heating device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110740525A (en) * | 2019-10-15 | 2020-01-31 | 北京小米移动软件有限公司 | Method for controlling electric blanket, device for controlling electric blanket and electronic equipment |
| CN110740525B (en) * | 2019-10-15 | 2022-04-15 | 北京小米移动软件有限公司 | Method for controlling electric blanket, device for controlling electric blanket and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109168204B (en) | 2021-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201927858U (en) | Thermoelectric intelligent fireproof socket | |
| CN204576338U (en) | Power conditioning circuitry and cooking apparatus | |
| CN109168204A (en) | The temprature control method of electric blanket | |
| CN208506612U (en) | Electric blanket temperature control device | |
| CN105902079B (en) | A kind of intelligent electric blanket | |
| CN208506611U (en) | Electric pad temperature control equipment | |
| US20110286138A1 (en) | Temperature Controller | |
| JPS58105180A (en) | Device for controlling electric power of copying machine | |
| CN108966372A (en) | The temprature control method of electric pad | |
| CN108762338A (en) | Electric pad temperature control equipment | |
| CN204965218U (en) | Marine temperature controller's test system | |
| CN207232808U (en) | Heating control apparatus and cooking apparatus | |
| CN108762337A (en) | Electric blanket temperature control device | |
| CN211046457U (en) | Overtemperature protection device of electric oven | |
| CN209496708U (en) | A kind of transformer binding post fever monitoring device | |
| JPS59207142A (en) | Cautery | |
| CN208028566U (en) | A kind of excess temperature detection circuit and thermal-shutdown circuit for heater | |
| CN205356708U (en) | Safe electric blanket accuse temperature switch | |
| CN208210331U (en) | A kind of electric hot plate thermistor for being easily installed and dismantling | |
| KR101957564B1 (en) | Temperature controller with enhanced fire protection function | |
| CN205809739U (en) | A kind of metering attemperating unit based on PLC | |
| CN109143889A (en) | Obtain the pulse duty factor experimental method of electric pad energised in pulses | |
| CN108507935A (en) | A kind of high precision infrared radiation heating experimental rig and method | |
| CN212379770U (en) | Constant temperature control device of electric heater | |
| GB2148633A (en) | Improvements in or relating to electrical circuits |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |