CN107773347A - A kind of multifunctional electro-heating hand warmer based on power-off protection - Google Patents
A kind of multifunctional electro-heating hand warmer based on power-off protection Download PDFInfo
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- CN107773347A CN107773347A CN201711133941.2A CN201711133941A CN107773347A CN 107773347 A CN107773347 A CN 107773347A CN 201711133941 A CN201711133941 A CN 201711133941A CN 107773347 A CN107773347 A CN 107773347A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 43
- 230000005611 electricity Effects 0.000 claims description 12
- 239000003381 stabilizer Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims 1
- 230000001681 protective effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005485 electric heating Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 101000639792 Homo sapiens U2 small nuclear ribonucleoprotein A' Proteins 0.000 description 1
- 102100034465 U2 small nuclear ribonucleoprotein A' Human genes 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/007—Heating or cooling appliances for medical or therapeutic treatment of the human body characterised by electric heating
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F2007/0001—Body part
- A61F2007/0029—Arm or parts thereof
- A61F2007/0036—Hand
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/007—Heating or cooling appliances for medical or therapeutic treatment of the human body characterised by electric heating
- A61F2007/0071—Heating or cooling appliances for medical or therapeutic treatment of the human body characterised by electric heating using a resistor, e.g. near the spot to be heated
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Control Of Resistance Heating (AREA)
Abstract
The invention discloses a kind of multifunctional electro-heating hand warmer based on power-off protection, it is related to electric-heating hand warmer field；It includes control device, charger baby, electro-heat equipment and power-off protection apparatus；The control device includes single-chip microcomputer, and the power-off protection apparatus includes power failure detection circuit and relay；The electro-heat equipment is electrically connected with button, and the button, power failure detection circuit and relay are electrically connected with single-chip microcomputer, and the relay is also electrically connected with charger baby, and the charger baby is electrically connected with load, and the relay is also electrically connected with input；The present invention solves existing hand warmer can not disconnect charger baby and load in time due to a lack of outage detection, the problem of so as to cause hand warmer and charger baby to burn out, reached timely detection powering-off state, realized the effect of real power-off protection.
Description
Technical field
The present invention relates to electric-heating hand warmer field, especially a kind of multifunctional electro-heating hand warmer based on power-off protection.
Background technology
Electric-heating hand warmer is broadly divided into three kinds：It is a kind of to be generated heat with by heating water, with traditional hot-water bottle
Difference, electric hot-water bag have saved the trouble for adding water, as long as upper 10 a few minutes such as plug in can just generate heat；Second is to pass through chemistry
React to generate heat, heat is produced by the contact of the inside chemical substance, temperature is 40 DEG C or so；The third is to use lithium battery
Function, inner heat piece heating, using USB interface discharge and recharge, due to the function of lithium battery energy discharge and recharge, typically also as movement
Power supply uses, and compact is handy to carry about, and temperature can reach 50 DEG C or so；But and charger baby and hand warmer in one
Hand warmer can because hand warmer in electro-heat equipment heating influence charger baby performance because power-off time and state can not be predicted
The power-off protecting circuit for causing often to have does not play the effect of real power-off protection, if while because temperature is too high when powering off, power-off
Surge can be brought to interfere, cause power-off protection impacted so as to cause charger baby and hand warmer to burn out, so needing one kind
Multifunctional electro-heating hand warmer based on power-off protection is realized by detecting power-off electric power thus supplied to realize power-off protection.
The content of the invention
It is an object of the invention to：The invention provides a kind of multifunctional electro-heating hand warmer based on power-off protection, solves
Existing hand warmer can not disconnect charger baby and load in time due to a lack of outage detection, so as to causing hand warmer and charger baby to burn out
The problem of.
The technical solution adopted by the present invention is as follows：
A kind of multifunctional electro-heating hand warmer based on power-off protection, including housing, interface and button, the button are arranged on
Surface of shell, the interface are arranged on casing lateral surfaces, in addition to control device, charger baby, electro-heat equipment and power-off protection dress
Put；The control device includes single-chip microcomputer, and the power-off protection apparatus includes power failure detection circuit and relay；The heating dress
Put and be electrically connected with button, the button, power failure detection circuit and relay are electrically connected with single-chip microcomputer, and the relay is also
It is electrically connected with charger baby, the charger baby is electrically connected with load, and the relay is also electrically connected with input.
Preferably, the power failure detection circuit includes detection unit and anti-interference unit；The detection unit input with
Mains electricity input end is connected in parallel, and the detection unit output end is electrically connected with anti-interference unit input, the anti-interference list
First output end is electrically connected with single-chip microcomputer.
Preferably, the detection unit connection is as follows：After mains electricity input end one end is sequentially connected with diode D5 and resistance R6
Optocoupler U1 inputs one end is connected, mains electricity input end one end connection optocoupler U1 input other ends, the defeated place ends one of optocoupler U1 terminate
VCC, the other end after diode D3 via being grounded, and for the other end also via being grounded after diode D2 connection electric capacity C1, electric capacity C1 is another
Via being grounded after resistance R1 connection adjustable resistances R11, adjustable resistance R11 other ends connection amplifier U0A positive inputs at end
End, the adjustable resistance R11 other ends are also connected with resistance R2 and meet VCC, and resistance R2 is passed through after being also connected with amplifier U0A inverting input
By being grounded after diode D1, amplifier U0A positive power source terminal connection VCC, amplifier U0A negative power end ground connection, amplifier
U0A output end connection resistance R3 is followed by VCC, and amplifier U0A output end is also connected with the input of anti-interference unit.
Preferably, the connection of the anti-interference unit is as follows：The input connection amplifier U2A's of anti-interference unit is anti-phase
Input, for amplifier U2A normal phase input end via being grounded after resistance R12 connection voltage-stabiliser tubes D11, amplifier U2A positive is defeated
Enter output end of the end via resistance R13 connection amplifiers U2A, amplifier U2A positive power source terminal connection VCC, amplifier U2A is just
Power end is also grounded via resistance R10 connections voltage-stabiliser tube D11, amplifier U2A negative power end, and amplifier U2A output end is also
Connect single-chip microcomputer pin VOUT.
Preferably, the charger baby is arranged in housing, and thermal insulation layer is provided between the charger baby and housing.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1. the present invention sets outage detection unit, charger baby and relay, input is disconnected in time by detecting powering-off state
End and the connection of charger baby, change the connection of charger baby and load, avoid the existing power-off protection caused by delay excessively slow, so as to
Cause hand warmer and the shortcomings that burning out of charger baby, charging can not be disconnected in time due to a lack of outage detection by solving existing hand warmer
Precious and load, the problem of so as to cause hand warmer and charger baby to burn out, timely detection powering-off state is reached, has realized really disconnected
The effect of electric protection；
2. the power failure detection circuit of the present invention sets filter circuit to remove by setting photoelectrical coupler to realize opto-electronic conversion
Interference, anti-jamming circuit remove shake and interference using voltage-stablizer and hysteresis comparator, further ensure the standard of outage detection
True property and the efficiency for improving outage detection；
3. setting thermal insulation layer between the housing and charger baby of the present invention, electro-heat equipment heating is avoided to cause power-off protecting circuit
Interference, so as to influence power-off protection, on the other hand protect the environment of charger baby, avoid the reduced lifetime caused by high temperature
Problem, be advantageous to improve the practicality of hand warmer.
Brief description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the system block diagram of the present invention；
Fig. 2 is the power failure detection circuit figure of the present invention.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
The present invention is elaborated with reference to Fig. 1, Fig. 2.
A kind of multifunctional electro-heating hand warmer based on power-off protection, including housing, interface and button, button are arranged on housing
Surface, interface are arranged on casing lateral surfaces, in addition to control device, charger baby, electro-heat equipment and power-off protection apparatus；Control dress
Put includes power failure detection circuit and relay including single-chip microcomputer, power-off protection apparatus；Electro-heat equipment is electrically connected with button, is pressed
Key, power failure detection circuit and relay are electrically connected with single-chip microcomputer, and relay is also electrically connected with charger baby, and charger baby is with bearing
Carry and be electrically connected with, relay is also electrically connected with input.
Power failure detection circuit includes detection unit and anti-interference unit；Detection unit input is in parallel with mains electricity input end even
Connect, detection unit output end is electrically connected with anti-interference unit input, and anti-interference unit output end is electrically connected with single-chip microcomputer.
Detection unit connection is as follows：Connection optocoupler U1 is defeated after mains electricity input end one end is sequentially connected with diode D5 and resistance R6
Enter and hold one end, mains electricity input end one end connection optocoupler U1 input other ends, the defeated place ends one of optocoupler U1 terminate VCC, other end warp
By being grounded after diode D3, the other end after diode D2 connection electric capacity C1 also via being grounded, and the electric capacity C1 other ends are via resistance R1
It is grounded after connection adjustable resistance R11, adjustable resistance R11 other ends connection amplifier U0A normal phase input end, adjustable resistance R11
The other end is also connected with resistance R2 and meets VCC, and resistance R2 is also connected with after amplifier U0A inverting input through being followed by by diode D1
Ground, amplifier U0A positive power source terminal connection VCC, amplifier U0A negative power end ground connection, amplifier U0A output end connection electricity
Resistance R3 is followed by VCC, and amplifier U0A output end is also connected with the input of anti-interference unit.
The connection of anti-interference unit is as follows：The input connection amplifier U2A of anti-interference unit inverting input, amplification
Device U2A normal phase input end after resistance R12 connection voltage-stabiliser tubes D11 via being grounded, and amplifier U2A normal phase input end is via electricity
R13 connection amplifiers U2A output end, amplifier U2A positive power source terminal connection VCC are hindered, amplifier U2A positive power source terminal also passes through
It is grounded by resistance R10 connections voltage-stabiliser tube D11, amplifier U2A negative power end, amplifier U2A output end is also connected with single-chip microcomputer
Pin VOUT.
Charger baby is arranged in housing, and thermal insulation layer is provided between the charger baby and housing.
Embodiment 2
Use principle：Push button, hand warmer is started working, and starting heating after electro-heat equipment connection power supply is used as hand warmer
Use；When hand warmer connection unit is charged, i.e. normal power supply situation, power failure detection circuit output low level, single-chip microcomputer are adopted
With STC series, single-chip microcomputer pin VOUT is low level, and trigger relay is opened, and civil power directly inputs charger baby, if there is load,
Then civil power is via charger baby input load；If during power-off, power failure detection circuit output high level, single-chip microcomputer pin VOUT is high electricity
Flat, trigger relay disconnects, and is converted to charger baby output, the disconnection of single-chip microcomputer control load and company if load change is detected
Connect, electro-heat equipment is electrically connected with button, and button, power failure detection circuit and relay are electrically connected with single-chip microcomputer, relay
Also it is electrically connected with charger baby, charger baby is electrically connected with load, and relay is also electrically connected with input, realizes powering-off state
Lower protection hand warmer and charger baby, the impact for avoiding existing hand warmer power-off from being brought because being not provided with power-off protection cause the damage of device
It is bad；Hand warmer integrates charging and warm hand simultaneously, and the security of hand warmer power-off is improved while optimizing the function of hand warmer
And stability, realize power-off protection；Power failure detection circuit includes detection unit and anti-interference unit, and detection unit sets filtered electrical
The removals such as appearance interference, while anti-interference unit is set up, hysteresis comparator is introduced in detection unit output end, shake is removed and does
Disturb, ensure the accuracy of outage detection；Thermal insulation layer is set to prevent superheating of heating device from being made to charger baby between housing and charger baby
Into influence, further improve hand warmer practicality.The present invention sets outage detection unit, charger baby and relay, passes through
Detection powering-off state disconnects the connection of input and charger baby in time, changes the connection of charger baby and load, avoids existing because prolonging
When caused power-off protection it is excessively slow, so as to cause hand warmer and the shortcomings that burning out of charger baby, solve existing hand warmer because lack
Weary outage detection can not disconnect charger baby and load in time, the problem of so as to cause hand warmer and charger baby to burn out, reached and
When detect powering-off state, realize the effect of real power-off protection.
Claims (5)
1. a kind of multifunctional electro-heating hand warmer based on power-off protection, including housing, interface and button, the button are arranged on shell
Body surface face, the interface are arranged on casing lateral surfaces, it is characterised in that：Also include control device, charger baby, electro-heat equipment and break
Electrical protective device；The control device includes single-chip microcomputer, and the power-off protection apparatus includes power failure detection circuit and relay；Institute
State electro-heat equipment to be electrically connected with button, the button, power failure detection circuit and relay are electrically connected with single-chip microcomputer, described
Relay is also electrically connected with charger baby, and the charger baby is electrically connected with load, and the relay also electrically connects with input
Connect.
A kind of 2. multifunctional electro-heating hand warmer based on power-off protection according to claim 1, it is characterised in that：It is described disconnected
Power detection circuit includes detection unit and anti-interference unit；The detection unit input is connected in parallel with mains electricity input end, institute
State detection unit output end to be electrically connected with anti-interference unit input, the anti-interference unit output end electrically connects with single-chip microcomputer
Connect.
A kind of 3. multifunctional electro-heating hand warmer based on power-off protection according to claim 2, it is characterised in that：The inspection
It is as follows to survey unit connection：Mains electricity input end one end connects optocoupler U1 inputs one end after being sequentially connected with diode D5 and resistance R6,
Mains electricity input end one end connects the optocoupler U1 input other ends, and the defeated place ends one of optocoupler U1 terminate VCC, and the other end is via diode D3
After be grounded, the other end after diode D2 connection electric capacity C1 also via being grounded, and the electric capacity C1 other ends are via resistance R1 connection adjustable electrics
It is grounded after resistance R11, adjustable resistance R11 other ends connection amplifier U0A normal phase input end, the adjustable resistance R11 other ends also connect
Connecting resistance R2 meets VCC, and resistance R2 is grounded after being also connected with amplifier U0A inverting input after by diode D1, amplifier U0A
Positive power source terminal connection VCC, amplifier U0A negative power end ground connection, amplifier U0A output end connection resistance R3 be followed by VCC,
Amplifier U0A output end is also connected with the input of anti-interference unit.
A kind of 4. multifunctional electro-heating hand warmer based on power-off protection according to claim 3, it is characterised in that：It is described anti-
Disturb the connection of unit as follows：The input connection amplifier U2A of anti-interference unit inverting input, amplifier U2A is just
Phase input via being grounded after resistance R12 connection voltage-stabiliser tubes D11, via resistance R13 connections put by amplifier U2A normal phase input end
Big device U2A output end, amplifier U2A positive power source terminal connection VCC, amplifier U2A positive power source terminal also connect via resistance R10
Voltage-stabiliser tube D11, amplifier U2A negative power end ground connection are met, amplifier U2A output end is also connected with single-chip microcomputer pin VOUT.
A kind of 5. multifunctional electro-heating hand warmer based on power-off protection according to claim 4, it is characterised in that：It is described to fill
Electric treasured is arranged in housing, and thermal insulation layer is provided between the charger baby and housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711133941.2A CN107773347A (en) | 2017-11-16 | 2017-11-16 | A kind of multifunctional electro-heating hand warmer based on power-off protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711133941.2A CN107773347A (en) | 2017-11-16 | 2017-11-16 | A kind of multifunctional electro-heating hand warmer based on power-off protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107773347A true CN107773347A (en) | 2018-03-09 |
Family
ID=61433287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711133941.2A Pending CN107773347A (en) | 2017-11-16 | 2017-11-16 | A kind of multifunctional electro-heating hand warmer based on power-off protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107773347A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364815A (en) * | 2011-10-25 | 2012-02-29 | 杭州电子科技大学 | Intelligent uninterruptible power supply system based on complementation of light, storage battery and commercial power |
| CN105449801A (en) * | 2015-11-30 | 2016-03-30 | 芜湖锐芯电子科技有限公司 | Power-off protection-type mobile phone charger |
| CN208405058U (en) * | 2017-11-16 | 2019-01-22 | 绵阳市建诚电子有限公司 | A kind of Multifunctional hand warming based on power-off protection is precious |
-
2017
- 2017-11-16 CN CN201711133941.2A patent/CN107773347A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364815A (en) * | 2011-10-25 | 2012-02-29 | 杭州电子科技大学 | Intelligent uninterruptible power supply system based on complementation of light, storage battery and commercial power |
| CN105449801A (en) * | 2015-11-30 | 2016-03-30 | 芜湖锐芯电子科技有限公司 | Power-off protection-type mobile phone charger |
| CN208405058U (en) * | 2017-11-16 | 2019-01-22 | 绵阳市建诚电子有限公司 | A kind of Multifunctional hand warming based on power-off protection is precious |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180309 |
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| RJ01 | Rejection of invention patent application after publication |