CN110134055A - Self-shield heater circuit, beauty instrument, circuitry fault detection method and device - Google Patents
Self-shield heater circuit, beauty instrument, circuitry fault detection method and device Download PDFInfo
- Publication number
- CN110134055A CN110134055A CN201910539914.8A CN201910539914A CN110134055A CN 110134055 A CN110134055 A CN 110134055A CN 201910539914 A CN201910539914 A CN 201910539914A CN 110134055 A CN110134055 A CN 110134055A
- Authority
- CN
- China
- Prior art keywords
- voltage value
- self
- heater circuit
- voltage
- shield
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Resistance Heating (AREA)
Abstract
The embodiment of the present application provides a kind of self-shield heater circuit, beauty instrument, circuitry fault detection method and device.By the way that the predeterminated position of the pin of controller and the self-shield heater circuit is electrically connected; in equipment work; first detect the voltage value of predeterminated position described in the self-shield heater circuit; the voltage value is compared with preset voltage value, to judge whether the self-shield heater circuit breaks down.So, it is ensured that the self-shield heater circuit connection is normal and each element fault-free, prevents out of control because of fault using the equipment of the self-shield heater circuit, ensures the personal safety of user.
Description
Technical field
This application involves circuit fields, examine in particular to a kind of self-shield heater circuit, beauty instrument, line fault
Survey method and device.
Background technique
Existing major part heating equipment is by heating sheet heat, and principle is using electric current by conductor, so that conductor exists
It generates heat under the action of electric current.In order to control temperature, temperature usually is detected using all the way including the circuit of thermo-sensitive resistor,
Electric current is adjusted according to the temperature detected, reaches the target temperature of needs.
This mode structure is simply at low cost, but there are the following problems: due to the resistance value by software detection thermo-sensitive resistor come
Temperature control is done, once software operation error, then temperature is just no longer controlled, may cause to scald to user.Therefore volume is needed
Outer circuit does lost-control protection, due to manufacture craft, service life or external physical impact etc., so that this is additional
Circuit can not just play the protection to heater circuit in heating equipment, and then be easy to bring the person to user once breaking down
Injury.
Summary of the invention
In order to overcome it is in the prior art at least one is insufficient, the first purpose of the application is to provide a kind of self-shield and adds
Heater circuit, the self-shield heater circuit include controller, comparator, detection circuit and heater circuit.
The detection circuit includes divider resistance and thermo-sensitive resistor, and the divider resistance is series at the thermo-sensitive resistor and connects
Between ground terminal and feeder ear, the voltage value of the feeder ear is controlled by the controller.
The heater circuit includes the switch member of heating member and the control heating member, the controlled end of the switch member and institute
The output end for stating comparator is electrically connected.
The first input end of the comparator is electrically connected between the divider resistance and thermo-sensitive resistor, the comparison
Second input terminal of device is connect with reference voltage input terminal, and the controller is by the electricity between first input end and the second input terminal
Pressure value is compared, and exports control signal to the switch member according to comparison result.
The controller passes through second by being electrically connected between the first pin and the divider resistance and thermo-sensitive resistor
The output end of pin and the comparator is electrically connected, for obtaining the working condition of the self-shield heater circuit.
Optionally, the thermo-sensitive resistor is negative tempperature coefficient thermistor.
Optionally, the switch member is MOSFET (Metal Oxide Semiconductor Field Effect
Transistor, MOS type field-effect tube) pipe.
The another object of the embodiment of the present application is to provide a kind of circuitry fault detection method, add applied to the self-shield
The controller of heater circuit, which comprises
The measurement voltage value of the self-shield heater circuit predeterminated position is obtained, the predeterminated position includes the power supply
End, the first link position of first pin and the self-shield heater circuit and second pin and the self-shield
Second link position of heater circuit.
The measurement voltage value is compared with preset voltage value, if meeting preset condition, exports the self-shield
The information that heater circuit breaks down.
Optionally, the preset voltage value includes the corresponding voltage value of various faults type, the method also includes:
The measurement voltage value is compared with the preset voltage value, obtains the failure of the self-shield heater circuit
Type.
Optionally, if the voltage of the feeder ear is the first voltage value, the voltage of first link position is the second electricity
Pressure value, the voltage of second link position are third voltage value；The first voltage value is greater than third voltage value, and described the
Two voltage values are between the first voltage value and third voltage value.
The step of survey voltage value for obtaining the self-shield heater circuit predeterminated position reality includes:
The voltage of the feeder ear is adjusted to the third voltage value, obtains first link position and the second connection
The voltage value of position.
It is described that the measurement voltage value is compared with the preset voltage value, obtain the self-shield heater circuit
The step of fault type includes:
If the voltage of first link position and the second link position is all the third voltage value, the comparator
Damage output low level.
Optionally, described that the measurement voltage value is compared with the preset voltage value, obtain the self-insurance
The step of protecting the fault type of heater circuit further include:
If the voltage of the feeder ear is the first voltage value, the voltage of first link position is first electricity
Pressure value, the voltage value of second link position are the third voltage value, then the thermo-sensitive resistor open circuit.
If the voltage of the feeder ear is the first voltage value, the voltage of first link position is the third electricity
Pressure value, the voltage value of second link position are the first voltage value, then the thermo-sensitive resistor short circuit.
If the voltage of the feeder ear is the first voltage value, the voltage of first link position is second electricity
Pressure value, the voltage value of second link position are the first voltage value, then the comparator damage output high level.
The another object of the embodiment of the present application is to provide a kind of line fault testing device, add applied to the self-shield
The controller of heater circuit, the line fault testing device include that voltage obtains module and fault detection module.
The voltage obtains the measurement voltage value that module is used to obtain the self-shield heater circuit predeterminated position, described pre-
If position includes the feeder ear, the first link position of first pin and the self-shield heater circuit and described the
Second link position of two pins and the self-shield heater circuit.
The fault detection module is for the measurement voltage value to be compared with preset voltage value, if meeting default item
Part then exports the information that the self-shield heater circuit breaks down.
Optionally, the preset voltage value includes the corresponding voltage value of various faults type, the line fault detection dress
Setting further includes fault determination module.
The fault determination module is for the measurement voltage value to be compared with the preset voltage value, described in acquisition
The fault type of self-shield heater circuit.
The another object of the embodiment of the present application is to provide a kind of beauty instrument, and the beauty instrument includes that the self-shield adds
Heater circuit, the beauty instrument further include memory, controller and the line fault testing device, the line fault detection
Device is located on the memory, and the software function module executed including one or more by the controller.
In terms of existing technologies, the application has the advantages that
The embodiment of the present application provides a kind of self-shield heater circuit, beauty instrument, circuitry fault detection method and device.Pass through
The predeterminated position of the pin of controller and the self-shield heater circuit is electrically connected, in equipment work, first detects the self-insurance
The voltage value for protecting predeterminated position described in heater circuit, the voltage value is compared with preset voltage value, should be certainly with judgement
Whether protection heater circuit breaks down.So, it is ensured that the self-shield heater circuit connection is normal and each element without reason
Barrier, prevents out of control because of fault using the equipment of the self-shield heater circuit, ensures the personal safety of user.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the hardware structure diagram of self-shield heater circuit provided by the embodiments of the present application；
Fig. 2 is the step flow chart of circuitry fault detection method provided by the embodiments of the present application；
Fig. 3 is startup self-detection state table provided by the embodiments of the present application；
Fig. 4 is the structural schematic diagram of line fault testing device provided by the embodiments of the present application.
Icon: 500- controller；501- feeder ear；502- divider resistance；503- thermo-sensitive resistor；504- second resistance；
505- first resistor；The first link position of 506-；507- switch member；508- heating member；The second link position of 509-；110- route
Fault detection means；1101- voltage obtains module；1102- fault detection module；1103- fault determination module.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments herein provided in the accompanying drawings is not intended to limit below claimed
Scope of the present application, but be merely representative of the selected embodiment of the application.Based on the embodiment in the application, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model of the application protection
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present application, it should be noted that term " first ", " second ", " third " etc. are only used for distinguishing and retouch
It states, is not understood to indicate or imply relative importance.
Fig. 1 is please referred to, Fig. 1 is the hardware structure diagram of self-shield heater circuit provided by the embodiments of the present application, the self-shield
Heater circuit includes controller 500, comparator, detection circuit and heater circuit.
The detection circuit includes divider resistance 502 and thermo-sensitive resistor 503, the divider resistance 502 and the thermo-sensitive resistor 503
It is series between ground terminal and feeder ear 501, the voltage value of the feeder ear 501 is controlled by the controller 500.
The controller 500 may be a kind of IC chip, the processing capacity with signal.Above-mentioned processor can be with
It is general processor, including central processing unit (Central Processing Unit, abbreviation CPU), network processing unit
(Network Processor, abbreviation NP) etc.；Can also be digital signal processor (DSP), specific integrated circuit (ASIC),
Field programmable gate array (FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hard
Part component.It may be implemented or execute disclosed each method, step and the logic diagram in the embodiment of the present application.General processor
It can be microprocessor or the processor be also possible to any conventional processor etc..
The heater circuit includes the switch member 507 of heating member 508 and the control heating member 508, the switch member 507 by
The output end for controlling end and the comparator is electrically connected.
The first input end of the comparator is electrically connected between the divider resistance 502 and thermo-sensitive resistor 503, this compares
Second input terminal of device is connect with reference voltage input terminal, which will be between first input end and the second input terminal
Voltage value is compared, and exports control signal to the switch member 507 according to comparison result.
Voltage division processing is carried out to the voltage of the feeder ear 501 by the divider resistance 502 and thermo-sensitive resistor 503,
Wherein, which is the fixed resistance of resistance value, and the resistance value of the thermo-sensitive resistor 503 changes with exterior temperature change.
Since the first input end of the comparator is connected between divider resistance 502 and thermo-sensitive resistor 503, the of the corresponding comparator
The voltage value that one input terminal obtains is also with exterior temperature change.
The voltage value of the acquisition of first input end is compared by the comparator with the reference voltage that the second input terminal obtains.
It, should when the temperature of the heating member 508 is higher than preset threshold since the thermo-sensitive resistor 503 is used to detect the temperature of heating member 508
The difference of the reference voltage of the voltage of comparator first input end and the second input terminal will be greater than default inversion threshold, so that the ratio
It is inverted compared with device output end.Since the controlled end of the switch member 507 and the deferent segment of the comparator are electrically connected, the comparator
Deferent segment inverts once level occurs, will be so that switch member 507 turns off, so that heating member 508 stops heating.
In this way, being avoided by being protected from hardware view to heater circuit since software run-time error adds this
Heater circuit is out of control, and heating member 508 is caused to generate excessively high temperature, causes personal injury to user.
Referring once again to Fig. 1, the second input terminal of the comparator is electrically connected at first resistor 505 and second resistance 504
Between.The first resistor 505 and the voltage of 504 pairs of second resistance inputs divide, so that the second input terminal of the comparator
Obtain stable reference voltage.
Optionally, which is negative tempperature coefficient thermistor, which is MOSFET pipe.
Further, referring once again to Fig. 1, due to the self-shield heater circuit patrolling by hardware realization overheat protector completely
Collect function.If circuit malfunctions will cause heater circuit out of control so that can not achieve overheat protector.In order to enable including this
The equipment of self-shield heater circuit can work normally, and need to carry out self-test to the self-shield heater circuit after equipment starting.
The controller 500 between the first pin and the divider resistance 502 and thermo-sensitive resistor 503 by electrically connecting
It connects, is electrically connected by the output end of the second pin and the comparator, for obtaining the work of the self-shield heater circuit
State.
Referring to figure 2., Fig. 2 is a kind of step flow chart of circuitry fault detection method provided by the embodiments of the present application, is answered
Controller 500 for the self-shield heater circuit.Each step of the circuitry fault detection method is explained in detail below
It states.
Step S100, obtains the measurement voltage value of the self-shield heater circuit predeterminated position, and the predeterminated position includes
First link position 506 of the feeder ear 501, first pin and the self-shield heater circuit, wherein described first
Link position 506 is located at the position being electrically connected between first pin and the divider resistance 502 and thermo-sensitive resistor 503；
Second link position 509 of second pin and the self-shield heater circuit, wherein second link position 509
In the position that the output end of the second pin and the comparator is electrically connected.
The measurement voltage value is compared with preset voltage value, if meeting preset condition, exports institute by step S200
State the information that self-shield heater circuit breaks down.
Optionally, which includes the corresponding voltage value of various faults type, and the controller 500 is by the actual measurement
Voltage value is compared with the preset voltage value, obtains the fault type of the self-shield heater circuit, wherein the failure
Type includes comparator damage output low level, thermo-sensitive resistor open circuit, thermo-sensitive resistor short circuit and the high electricity of comparator damage output
It is flat.
If the voltage of the feeder ear 501 is the first voltage value, which obtains first link position
506 and second link position 509 voltage, if the voltage of the first link position 506 be second voltage value, it is described second connection
The voltage of position 509 is third voltage value；Wherein, the first voltage value is greater than third voltage value, and the second voltage value
Between the first voltage value and third voltage value.
The controller 500 adjusts the voltage of the feeder ear 501 to the third voltage value, obtains first connection position
Set 506 and second link position 509 voltage value, and be compared with voltage value is set.
It is described if the voltage of first link position 506 and the second link position 509 is all the third voltage value
Comparator damage output low level.
If the voltage of the feeder ear 501 is the first voltage value, the voltage of first link position 506 is described
The first voltage value, the voltage value of second link position 509 are the third voltage value, then the thermo-sensitive resistor open circuit.
If the voltage of the feeder ear 501 is the first voltage value, the voltage of first link position 506 is described
Third voltage value, the voltage value of second link position 509 are the first voltage value, then the thermo-sensitive resistor short circuit.
If the voltage of the feeder ear 501 is the first voltage value, the voltage of first link position 506 is described
Second voltage value, the voltage value of second link position 509 are the first voltage value, then the comparator damage output is high
Level.
Referring to figure 3., in a kind of possible example, which is 3.3V, which is 1.65V,
The third voltage value is 0V.It is switched on certainly in the table of comparisons such as Fig. 3 of the fault type of the holding circuit and the predeterminated position voltage
It examines shown in state table.
Referring to figure 4., the embodiment of the present application also provides a kind of line fault testing device 110, adds applied to the self-shield
The controller of heater circuit, the line fault testing device 110 include that voltage obtains module 1101 and fault detection module 1102.
The voltage obtains the measurement voltage value that module 1101 is used to obtain the self-shield heater circuit predeterminated position, described
Predeterminated position include the feeder ear 501, first pin and the self-shield heater circuit the first link position 506 with
And the second link position 509 of second pin and the self-shield heater circuit.
In the present embodiment, which obtains module 1101 and is used to execute the step S100 in Fig. 2, obtains about the voltage
The detailed description of module 1101 can refer to the detailed description of step S100.
The fault detection module 1102 is for the measurement voltage value to be compared with preset voltage value, if meeting pre-
If condition, then the information that the self-shield heater circuit breaks down is exported.
In the present embodiment, which is used to execute the step S200 in Fig. 2, about the fault detection
The detailed description of module 1102 can refer to the detailed description of step S200.
Optionally, referring once again to Fig. 4, the preset voltage value includes the corresponding voltage value of various faults type, described
Line fault testing device 110 further includes fault determination module 1103.
The fault determination module 1103 is obtained for the measurement voltage value to be compared with the preset voltage value
The fault type of the self-shield heater circuit.
The embodiment of the present application also provides a kind of beauty instrument, which includes the self-shield heater circuit, wherein the beauty
Instrument further includes memory, controller 500 and the line fault testing device 110, and the line fault testing device 110 is located at
On the memory, and the software function module executed including one or more by the controller 500.
Wherein, the memory may be, but not limited to, random access memory (Random Access Memory,
RAM), read-only memory (Read Only Memory, ROM), programmable read only memory (Programmable Read-Only
Memory, PROM), erasable read-only memory (Erasable Programmable Read-Only Memory, EPROM),
Electricallyerasable ROM (EEROM) (Electric Erasable Programmable Read-Only Memory, EEPROM) etc..
Wherein, memory is for storing program, and the controller 500 executes described program after receiving and executing instruction.
In conclusion the embodiment of the present application provide a kind of self-shield heater circuit, beauty instrument, circuitry fault detection method and
Device.By the way that the predeterminated position of the pin of controller 500 and the self-shield heater circuit is electrically connected, in equipment work,
The voltage value for first detecting predeterminated position described in the self-shield heater circuit compares the voltage value with preset voltage value
Compared with to judge whether the self-shield heater circuit breaks down.So, it is ensured that the self-shield heater circuit connection normally with
And each element fault-free, it prevents out of control because of fault using the equipment of the self-shield heater circuit, ensures the person of user
Safety.
In embodiment provided herein, it should be understood that disclosed device and method, it can also be by other
Mode realize.The apparatus embodiments described above are merely exemplary, for example, the flow chart and block diagram in attached drawing are shown
According to device, the architectural framework in the cards of method and computer program product, function of multiple embodiments of the application
And operation.In this regard, each box in flowchart or block diagram can represent one of a module, section or code
Point, a part of the module, section or code includes one or more for implementing the specified logical function executable
Instruction.It should also be noted that function marked in the box can also be attached to be different from some implementations as replacement
The sequence marked in figure occurs.For example, two continuous boxes can actually be basically executed in parallel, they sometimes may be used
To execute in the opposite order, this depends on the function involved.It is also noted that each of block diagram and or flow chart
The combination of box in box and block diagram and or flow chart can be based on the defined function of execution or the dedicated of movement
The system of hardware is realized, or can be realized using a combination of dedicated hardware and computer instructions.
In addition, each functional module in each embodiment of the application can integrate one independent portion of formation together
Point, it is also possible to modules individualism, an independent part can also be integrated to form with two or more modules.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) execute each embodiment the method for the application all or part of the steps.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above, the only various embodiments of the application, but the protection scope of the application is not limited thereto, it is any
Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain
Lid is within the scope of protection of this application.Therefore, the protection scope of the application shall be subject to the protection scope of the claim.
Claims (10)
1. a kind of self-shield heater circuit, which is characterized in that the self-shield heater circuit includes controller, comparator, detection
Circuit and heater circuit；
The detection circuit includes divider resistance and thermo-sensitive resistor, and the divider resistance and the thermo-sensitive resistor are series at ground terminal
Between feeder ear, the voltage value of the feeder ear is controlled by the controller；
The heater circuit includes the switch member of heating member and the control heating member, the controlled end of the switch member and the ratio
Output end compared with device is electrically connected；
The first input end of the comparator is electrically connected between the divider resistance and thermo-sensitive resistor, the comparator
Second input terminal is connect with reference voltage input terminal, and the controller is by the voltage value between first input end and the second input terminal
It is compared, and control signal is exported to the switch member according to comparison result；
The controller passes through the second pin by being electrically connected between the first pin and the divider resistance and thermo-sensitive resistor
It is electrically connected with the output end of the comparator, for obtaining the working condition of the self-shield heater circuit.
2. self-shield heater circuit according to claim 1, which is characterized in that the thermo-sensitive resistor is negative temperature coefficient heat
Quick resistance.
3. self-shield heater circuit according to claim 1, which is characterized in that the switch member is MOSFET pipe.
4. a kind of circuitry fault detection method, which is characterized in that the control applied to self-shield heater circuit described in claim 1
Device processed, which comprises
The measurement voltage value of the self-shield heater circuit predeterminated position is obtained, the predeterminated position includes the feeder ear, institute
The first link position and second pin for stating the first pin and the self-shield heater circuit are heated with the self-shield
Second link position of circuit；
The measurement voltage value is compared with preset voltage value, if meeting preset condition, exports the self-shield heating
The information of circuit malfunctions.
5. circuitry fault detection method according to claim 4, which is characterized in that the preset voltage value includes a variety of events
Hinder the corresponding voltage value of type, the method also includes:
The measurement voltage value is compared with the preset voltage value, obtains the failure classes of the self-shield heater circuit
Type.
6. circuitry fault detection method according to claim 5, which is characterized in that if the voltage of the feeder ear is first
Voltage value, the voltage of first link position are second voltage value, and the voltage of second link position is third voltage value；
The first voltage value is greater than third voltage value, and the second voltage value is located at the first voltage value and third voltage value
Between；
The step of measurement voltage value for obtaining the self-shield heater circuit predeterminated position includes:
The voltage of the feeder ear is adjusted to the third voltage value, obtains first link position and the second link position
Voltage value；
It is described that the measurement voltage value is compared with the preset voltage value, obtain the failure of the self-shield heater circuit
The step of type includes:
If the voltage of first link position and the second link position is all the third voltage value, the comparator damage
Export low level.
7. circuitry fault detection method according to claim 6, which is characterized in that described by the measurement voltage value
The step of being compared with the preset voltage value, obtaining the fault type of the self-shield heater circuit further include:
If the voltage of the feeder ear is the first voltage value, the voltage of first link position is the first voltage
Value, the voltage value of second link position are the third voltage value, then the thermo-sensitive resistor open circuit；
If the voltage of the feeder ear is the first voltage value, the voltage of first link position is the tertiary voltage
Value, the voltage value of second link position are the first voltage value, then the thermo-sensitive resistor short circuit；
If the voltage of the feeder ear is the first voltage value, the voltage of first link position is the second voltage
Value, the voltage value of second link position are the first voltage value, then the comparator damage output high level.
8. a kind of line fault testing device, which is characterized in that the control applied to self-shield heater circuit described in claim 1
Device processed, the line fault testing device include that voltage obtains module and fault detection module；
The voltage obtains the measurement voltage value that module is used to obtain the self-shield heater circuit predeterminated position, the default position
Set the first link position and second pipe including the feeder ear, first pin and the self-shield heater circuit
Second link position of foot and the self-shield heater circuit；
The fault detection module is for the measurement voltage value to be compared with preset voltage value, if meeting preset condition,
Then export the information that the self-shield heater circuit breaks down.
9. line fault testing device according to claim 8, which is characterized in that the preset voltage value includes a variety of events
Hinder the corresponding voltage value of type, the line fault testing device further includes fault determination module；
The fault determination module obtains the self-insurance for the measurement voltage value to be compared with the preset voltage value
Protect the fault type of heater circuit.
10. a kind of beauty instrument, which is characterized in that the beauty instrument includes the described in any item self-shield heating of claim 1-3
Circuit, the beauty instrument further include memory, controller and the described in any item line fault detection dresses of claim 8-9
It sets, the line fault testing device is located on the memory, and is executed by the controller including one or more soft
Part functional module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910539914.8A CN110134055B (en) | 2019-06-21 | 2019-06-21 | Self-protection heating circuit, beauty instrument, and line fault detection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910539914.8A CN110134055B (en) | 2019-06-21 | 2019-06-21 | Self-protection heating circuit, beauty instrument, and line fault detection method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110134055A true CN110134055A (en) | 2019-08-16 |
| CN110134055B CN110134055B (en) | 2020-11-10 |
Family
ID=67579021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910539914.8A Active CN110134055B (en) | 2019-06-21 | 2019-06-21 | Self-protection heating circuit, beauty instrument, and line fault detection method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110134055B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111323662A (en) * | 2020-02-14 | 2020-06-23 | 威马智慧出行科技（上海）有限公司 | Heater flameout detection circuit and detection method thereof |
| WO2021036308A1 (en) * | 2019-08-30 | 2021-03-04 | 华为技术有限公司 | Apparatus, method, and system for detecting thermal runaway in electrical device |
| CN113721490A (en) * | 2021-09-06 | 2021-11-30 | 上海唯美德科科技有限公司 | Anti-aging compact equipment system and method |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63204167A (en) * | 1987-02-19 | 1988-08-23 | Fuji Electric Co Ltd | Fault point locator for power distribution system |
| JP2000111616A (en) * | 1998-10-02 | 2000-04-21 | Nec Corp | Test method of logical circuit and test device of logical circuit |
| CN201311699Y (en) * | 2008-10-21 | 2009-09-16 | Tcl集团股份有限公司 | Alarming probe line failure prompt device |
| CN101986493A (en) * | 2010-09-25 | 2011-03-16 | 广东宝莱特医用科技股份有限公司 | Double protection control device for thermosensitive head |
| CN102798817A (en) * | 2011-05-26 | 2012-11-28 | 比亚迪股份有限公司 | Relay fault detection circuit and fault detection method thereof |
| CN103036203A (en) * | 2011-10-10 | 2013-04-10 | 鸿富锦精密工业（深圳）有限公司 | Protection circuit |
| CN103369770A (en) * | 2012-03-31 | 2013-10-23 | 海洋王照明科技股份有限公司 | Light fixture over-temperature protection circuit and light fixture over-temperature protection device |
| CN104979806A (en) * | 2014-04-02 | 2015-10-14 | 江苏物联网研究发展中心 | IGBT over-temperature protection circuit and protection method |
| CN106950422A (en) * | 2017-03-20 | 2017-07-14 | 深圳市同安德方科技有限公司 | A kind of high voltage frequency converter power self-checking circuit and method |
| CN206410801U (en) * | 2016-12-15 | 2017-08-15 | 北京中瑞蓝科电动汽车技术有限公司 | A kind of cooled plate temperature protection circuit |
| CN107976601A (en) * | 2017-10-20 | 2018-05-01 | 广州小鹏汽车科技有限公司 | A kind of fault diagnosis circuit and method for NTC temperature acquisition circuits |
| CN208401534U (en) * | 2018-07-04 | 2019-01-18 | 成都凌亚科技有限公司 | One kind is from switch protecting circuit |
| CN109394503A (en) * | 2017-11-16 | 2019-03-01 | 英特士雷德贸易有限公司 | Multifunctional instrument for face beauty and its application method |
| CN109633509A (en) * | 2018-12-26 | 2019-04-16 | 北京经纬恒润科技有限公司 | Diagnostic system of motor fault, method and readable storage medium storing program for executing |
| CN208823396U (en) * | 2018-04-16 | 2019-05-07 | 深圳虹望奈喜美电器有限公司 | A kind of multifunctional instrument for face beauty |
| CN208849444U (en) * | 2018-11-02 | 2019-05-10 | 北京经纬恒润科技有限公司 | A kind of thermal-shutdown circuit |
-
2019
- 2019-06-21 CN CN201910539914.8A patent/CN110134055B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63204167A (en) * | 1987-02-19 | 1988-08-23 | Fuji Electric Co Ltd | Fault point locator for power distribution system |
| JP2000111616A (en) * | 1998-10-02 | 2000-04-21 | Nec Corp | Test method of logical circuit and test device of logical circuit |
| CN201311699Y (en) * | 2008-10-21 | 2009-09-16 | Tcl集团股份有限公司 | Alarming probe line failure prompt device |
| CN101986493A (en) * | 2010-09-25 | 2011-03-16 | 广东宝莱特医用科技股份有限公司 | Double protection control device for thermosensitive head |
| CN102798817A (en) * | 2011-05-26 | 2012-11-28 | 比亚迪股份有限公司 | Relay fault detection circuit and fault detection method thereof |
| CN103036203A (en) * | 2011-10-10 | 2013-04-10 | 鸿富锦精密工业（深圳）有限公司 | Protection circuit |
| CN103369770A (en) * | 2012-03-31 | 2013-10-23 | 海洋王照明科技股份有限公司 | Light fixture over-temperature protection circuit and light fixture over-temperature protection device |
| CN104979806A (en) * | 2014-04-02 | 2015-10-14 | 江苏物联网研究发展中心 | IGBT over-temperature protection circuit and protection method |
| CN206410801U (en) * | 2016-12-15 | 2017-08-15 | 北京中瑞蓝科电动汽车技术有限公司 | A kind of cooled plate temperature protection circuit |
| CN106950422A (en) * | 2017-03-20 | 2017-07-14 | 深圳市同安德方科技有限公司 | A kind of high voltage frequency converter power self-checking circuit and method |
| CN107976601A (en) * | 2017-10-20 | 2018-05-01 | 广州小鹏汽车科技有限公司 | A kind of fault diagnosis circuit and method for NTC temperature acquisition circuits |
| CN109394503A (en) * | 2017-11-16 | 2019-03-01 | 英特士雷德贸易有限公司 | Multifunctional instrument for face beauty and its application method |
| CN208823396U (en) * | 2018-04-16 | 2019-05-07 | 深圳虹望奈喜美电器有限公司 | A kind of multifunctional instrument for face beauty |
| CN208401534U (en) * | 2018-07-04 | 2019-01-18 | 成都凌亚科技有限公司 | One kind is from switch protecting circuit |
| CN208849444U (en) * | 2018-11-02 | 2019-05-10 | 北京经纬恒润科技有限公司 | A kind of thermal-shutdown circuit |
| CN109633509A (en) * | 2018-12-26 | 2019-04-16 | 北京经纬恒润科技有限公司 | Diagnostic system of motor fault, method and readable storage medium storing program for executing |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021036308A1 (en) * | 2019-08-30 | 2021-03-04 | 华为技术有限公司 | Apparatus, method, and system for detecting thermal runaway in electrical device |
| CN111323662A (en) * | 2020-02-14 | 2020-06-23 | 威马智慧出行科技（上海）有限公司 | Heater flameout detection circuit and detection method thereof |
| CN113721490A (en) * | 2021-09-06 | 2021-11-30 | 上海唯美德科科技有限公司 | Anti-aging compact equipment system and method |
| CN113721490B (en) * | 2021-09-06 | 2024-01-02 | 上海唯美德科科技有限公司 | Anti-aging tightening equipment system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110134055B (en) | 2020-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110134055A (en) | Self-shield heater circuit, beauty instrument, circuitry fault detection method and device | |
| US10281528B2 (en) | Enhanced protection, diagnosis, and control of power distribution and control units | |
| US8258442B2 (en) | Apparatus and method for detecting condition of heating element | |
| TWI584547B (en) | Voltage regulator over-voltage detection system, method and apparatus | |
| CN108398977A (en) | Electrical equipment, integrated circuit and method for monitoring voltage | |
| CN109066593B (en) | Over-temperature protection circuit | |
| CN105490253B (en) | The excess temperature protection method of electromagnetic heating system and its power device, device | |
| CN106532668B (en) | Surge protection method and surge protective device and electrical equipment | |
| US20130293242A1 (en) | Circuit Integrity Detection System for Detecting The Integrity of A Sensing Wire in Electrically Heated Textiles | |
| CN105359245A (en) | Electronic protection circuit and method of controlling the same | |
| CN107390764B (en) | Over-temperature protection circuit and method and air conditioner | |
| US8440942B2 (en) | Circuit arrangement for protection of a heating element from overheating heating device and method for fused protection of the heating device | |
| JP2004170146A (en) | Insulation detecting apparatus of non-grounded power supply | |
| US10514307B2 (en) | Fault detection apparatus | |
| TW526440B (en) | Method for controlling the charging and discharging phases of a backup capacitor | |
| TWI674722B (en) | Detection circuit and switch module using the same | |
| CN217767280U (en) | Commercial-grade CPU temperature control circuit and commercial-grade CPU | |
| CN108267663A (en) | Detection device | |
| CN111949053B (en) | Temperature regulator and abnormality determination method | |
| TWI622778B (en) | Detection device | |
| US8508895B2 (en) | Short circuit protection for sensor | |
| JP3614687B2 (en) | Inspection method and recording medium for fire alarm | |
| US9640971B2 (en) | Self-calibrating circuit interrupter | |
| CN113671232B (en) | Residual current detection device | |
| US20230246434A1 (en) | Protection circuit for an electrical appliance |
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 |