CN106053998B - Detection method and device for PTC heater of air conditioner - Google Patents
Detection method and device for PTC heater of air conditioner Download PDFInfo
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- CN106053998B CN106053998B CN201610565888.2A CN201610565888A CN106053998B CN 106053998 B CN106053998 B CN 106053998B CN 201610565888 A CN201610565888 A CN 201610565888A CN 106053998 B CN106053998 B CN 106053998B
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- 238000001514 detection method Methods 0.000 title claims abstract description 125
- 230000002159 abnormal effect Effects 0.000 claims abstract description 76
- 238000004378 air conditioning Methods 0.000 claims description 101
- 206010037660 Pyrexia Diseases 0.000 claims description 84
- 238000011897 real-time detection Methods 0.000 claims description 24
- 238000011022 operating instruction Methods 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 238000012544 monitoring process Methods 0.000 abstract description 9
- 230000005856 abnormality Effects 0.000 description 13
- 238000009841 combustion method Methods 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- HPDFFVBPXCTEDN-UHFFFAOYSA-N copper manganese Chemical compound [Mn].[Cu] HPDFFVBPXCTEDN-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000013500 data storage Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 210000000352 storage cell Anatomy 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000012736 aqueous medium Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000027950 fever generation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- 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
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Abstract
The embodiment of the invention discloses a method and a device for detecting a PTC heater of an air conditioner, wherein the detection method comprises the following steps: pre-establishing a heating model of the PTC heater, wherein the heating model comprises at least one normal working interval of the PTC heater; detecting whether the acquired power of the PTC heater exceeds at least one normal working interval in real time; if yes, an alarm instruction is sent to trigger alarm. In the embodiment of the invention, the power of the PTC heater of the air conditioner is detected in real time according to the heating model by presetting the heating model of the PTC heater so as to give an alarm immediately when the power exceeds a normal working range, thereby realizing the abnormal detection and alarm of the PTC heater, realizing the detection and alarm of all types of abnormal conditions of the PTC heater, and a user can take effective treatment measures in time according to the alarm, thereby avoiding possible accidents such as fire and the like and realizing the safety monitoring and protection of the air conditioner and the PTC heater thereof.
Description
Technical field
The present embodiments relate to air-conditioning technical more particularly to a kind of detection methods and device of the ptc heater of air-conditioning.
Background technique
Auxiliary thermal source equipment is commonly configured in air-conditioning, more satisfactory and common auxiliary thermal source equipment is auxiliary heater.
Heating effect of the auxiliary heater in air-conditioning for being preheated to aqueous medium, when thus improving air-conditioning work and before running
And working effect.
Existing auxiliary heater is mostly using the heater of conventional resistive heater element, and there are also part auxiliary heaters to be
The ptc heater designed using positive temperature coefficient (PTC) thermistor constant temperature warming characteristic.It is protected in air-conditioning configured with fault detection
Protection circuit, for carrying out fault detection to auxiliary heater by temperature detection and current detecting, to ensure auxiliary heater
Normal use and work.
However existing fault detection protection circuit is only capable of protection using the heater of conventional resistive heater element, and is only capable of
Fault detection and protection are carried out to certain abnormal excessively high exception of such as power of such heater, cannot achieve to such heater
Dirty stifled, the blower exception dry combustion method of the abnormal such as air outlet of all types carries out fault detection and protection.The PTC of power adjustable is added
Hot device, existing fault detection protection circuit cannot achieve fault detection and protection to such heater.
Summary of the invention
The embodiment of the present invention provides the detection method and device of a kind of ptc heater of air-conditioning, to solve existing failure inspection
Survey the problem of protection circuit can not carry out abnormality detection ptc heater in air-conditioning.
On the one hand, the embodiment of the invention provides a kind of detection method of the ptc heater of air-conditioning, the detection method packets
It includes:
Pre-establish the fever model of the ptc heater, include in the fever model ptc heater at least
One normal work section；
Whether the power for the ptc heater that real-time detection obtains exceeds at least one described normal work section；
If so, sending alarm command to trigger alarm.
It further, further include at least one abnormal work section of the ptc heater in the fever model.
Further, in the fever model further include: preset the corresponding alarm in each abnormal work section and refer to
Order and alarm content simultaneously store, and also store each alarm command, each alarm content and each abnormal work section
Corresponding relationship.
Further, whether the power for the ptc heater that real-time detection obtains exceeds at least one described normal work
After making section, further includes:
If detecting the power of the ptc heater beyond at least one described normal work section, then real-time detection
Whether the power of the ptc heater is at least one described abnormal work section.
Further, the type of alarm of triggering includes at least: buzzing type of alarm, indicator light flashing type of alarm and failure
Code shows any one or more in type of alarm.
Further, whether the power of ptc heater described in real-time detection is at least one described abnormal work section
Later, further includes:
If detecting that the power of the ptc heater exceeds at least one described abnormal work section, work as according to being greater than
First predeterminated frequency of preceding detection frequency continues to obtain the power of the ptc heater in real time and be measured in real time.
Further, the current detection frequency is 10Hz, and first predeterminated frequency is 50Hz.
Further, further includes:
When time duration of alarming is more than the preset alarm time, fortune is sent to exhaust blower of the configuration in the air-conditioning
Row instructs so that exhaust blower operation is radiated.
On the other hand, the embodiment of the invention also provides a kind of detection device of the positive temperature coefficient ptc heater of air-conditioning,
The detection device includes:
Model module is established, includes institute in the fever model for pre-establishing the fever model of the ptc heater
State at least one normal work section of ptc heater；
Power module is detected, whether the power of the ptc heater for real-time detection acquisition exceeds described at least one
A normal work section；
Alarm module is triggered, if for detecting that the power of the ptc heater exceeds at least one described normal work
Make section, sends alarm command to trigger alarm.
It further, further include at least one abnormal work section of the ptc heater in the fever model.
Further, in the fever model further include: preset the corresponding alarm in each abnormal work section and refer to
Order and alarm content simultaneously store, and also store each alarm command, each alarm content and each abnormal work section
Corresponding relationship.
Further, the detection power module is also used to, if detecting the power of the ptc heater beyond described
At least one works normally section, then whether the power of ptc heater described in real-time detection is at least one described abnormal work
Make section.
Further, the type of alarm of the triggering alarm module includes at least: buzzing type of alarm, indicator light flashing report
Police's formula and fault code show any one or more in type of alarm.
Further, the detection power module is also used to, if detecting the power of the ptc heater beyond described
At least one abnormal work section, according to the first predeterminated frequency for being greater than current detection frequency, continuation obtains the PTC in real time and adds
The power of hot device is simultaneously measured in real time.
Further, the current detection frequency is 10Hz, and first predeterminated frequency is 50Hz.
Further, further includes:
Radiating module is controlled, is used for when time duration of alarming is more than the preset alarm time, to configuration in the sky
Exhaust blower in tune sends operating instruction so that exhaust blower operation is radiated.
The detection method and device of the ptc heater of air-conditioning provided in an embodiment of the present invention, pre-establish ptc heater
Whether fever model, the power of the ptc heater obtained according to fever model real-time detection exceed at least one described normal work
Make section, if sending alarm command then to trigger alarm.In the embodiment of the present invention, by the fever mould for presetting ptc heater
Type is measured in real time according to power of the fever model to air-conditioning ptc heater, when power is beyond section is worked normally
It alarms immediately, realizes the abnormality detection and alarm to ptc heater, and realize abnormal to all types of ptc heater
Detection and alarm, and user can take in time effective treatment measures according to alarm, prevent fire being likely to occur etc.
Accident realizes safety monitoring and protection to air-conditioning and its ptc heater.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing does one and simply introduces, it should be apparent that, drawings in the following description are some embodiments of the invention, for this
For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings others
Attached drawing.
Fig. 1 is the flow chart of the detection method of the ptc heater for the air-conditioning that the embodiment of the present invention one provides；
Fig. 2 is the flow chart of the detection method of the ptc heater of air-conditioning provided by Embodiment 2 of the present invention；
Fig. 3 is the schematic diagram of the detection device of the ptc heater for the air-conditioning that the embodiment of the present invention three provides；
Fig. 4 is the schematic diagram of the detection circuit of the ptc heater for the air-conditioning that the embodiment of the present invention four provides；
Fig. 5 is the schematic diagram of the detection circuit of the ptc heater for another air-conditioning that the embodiment of the present invention four provides.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, hereinafter with reference to attached in the embodiment of the present invention
Figure, clearly and completely describes technical solution of the present invention by embodiment, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
As shown in Figure 1, being a kind of process of the detection method of the ptc heater for air-conditioning that the embodiment of the present invention one provides
The technical solution of figure, the present embodiment is suitable for the case where carrying out abnormality detection to the ptc heater of air-conditioning.This method can be by sky
The detection device of the ptc heater of tune executes, which can be realized by the way of software and/or hardware, configures in sky
Executed in tune or in air-conditioning manual operator, in the present embodiment the detection device of ptc heater can arrangement in air-conditioning or air-conditioning
In manual operator, air-conditioning manual operator is the controlling terminal of air-conditioning and is electrically connected with air-conditioning that the air-conditioning manual operator may be mounted at metope
On for directly controlling and being arranged air-conditioning.
The detection method of the ptc heater of air-conditioning provided in this embodiment specifically comprises the following steps:
Step 110, the fever model for pre-establishing ptc heater, include in fever model ptc heater at least one
Work normally section.
Ptc heater for configuration in air-conditioning in the present embodiment, initially sets up the fever mould of the ptc heater
Type, wherein at least one in the fever model of the PTC including the ptc heater works normally section.PTC is established herein to add
The process of the fever model of hot device are as follows: starting air-conditioning operates normally air-conditioning and ptc heater therein；The normal fortune of acquisition in real time
The running parameter of ptc heater under the conditions of row；Show that at least one works normally section according to the running parameter that this is acquired in real time.
Thus the fever model of ptc heater can be established.It should be noted that the step of establishing the fever model of ptc heater is in sky
It completes and is stored in air-conditioning before recalling factory, it is invariable after air-conditioning factory to be stored in the fever model in air-conditioning.
The model of the ptc heater configured in this different air-conditioning may be different, the fever mould of different model ptc heater
Type is different, therefore each model ptc heater is respectively corresponding with fever model.The ptc heater of its configuration can be only stored in air-conditioning
Fever model；Or fever model library can be also stored in air-conditioning, it include various different model ptc heaters in fever model library
Fever model, then determine corresponding hair firstly the need of according to the model of the ptc heater configured in air-conditioning in subsequent detection
Thermal model realizes detection again.The quantity of the fever model stored in air-conditioning is not limited in the present invention.It is optional in the present embodiment
The fever model of the ptc heater of its configuration is only stored in the air-conditioning.
Whether the power for the ptc heater that step 120, real-time detection obtain exceeds at least one described normal work area
Between.
The fever model of the ptc heater of its configuration is stored in the air-conditioning in the present embodiment, in the fever model
At least one including the ptc heater works normally section.The normal work section of the ptc heater is chosen as PTC herein
The normal power section of heater, it will be understood by those skilled in the art that the parameter in the fever model of ptc heater include but
It is not limited to power parameter, such as further includes the parameters such as the corresponding current parameters in any normal power section and/or voltage parameter.Base
In the power adjustable characteristic of ptc heater, PTC is carried out in the optional normal power section by ptc heater of the present embodiment and is added
The detection of hot device.
Correspondingly, the detection device of ptc heater acquires the power of ptc heater in real time, and according to the hair of ptc heater
Whether thermal model, the power of the ptc heater of real-time detection acquisition exceed at least one described normal work in fever model
Whether the power in section, i.e. detection ptc heater exceeds each normal work section in fever model.If it is detected that PTC adds
The power of hot device then illustrates that the power of current ptc heater is abnormal beyond each normal work section in fever model；If inspection
The power for measuring ptc heater is in some normal work section in its fever model, then illustrates current ptc heater
Power is normal.
Step 130 is alarmed if so, sending alarm command with triggering.
If some for detecting that the power of ptc heater is in its fever model works normally in section, explanation is worked as
The power of preceding ptc heater is normal, then continues to obtain the power of ptc heater in real time and be examined in real time according to fever model
It surveys, to realize the exception monitoring to ptc heater.If detecting the power of ptc heater beyond each of fever model
Section is worked normally, illustrates that the power of current ptc heater is abnormal, is directed to the abnormal work of ptc heater, PTC heating at this time
The detection device of device sends alarm command to trigger alarm, allows the user to take effective treatment measures in time, preventing can
The accident that can occur, realizes safety monitoring and the protection to air-conditioning and its ptc heater.
The type of alarm of optional triggering includes at least: buzzing type of alarm, indicator light flashing type of alarm and fault code
Show any one or more in type of alarm.If detecting that the power of ptc heater exceeds each normal work section,
Alarm command is sent to alarm of the configuration in air-conditioning or air-conditioning manual operator so that alarm carries out buzzing alarm；Alternatively, to
It configures the display in air-conditioning or air-conditioning manual operator and sends alarm command so that display carries out fault code display alarm；Or
Person sends alarm command to indicator light of the configuration in air-conditioning or air-conditioning manual operator so that indicator light carries out indicator light flashing report
It is alert.Specifically, the detection device of ptc heater configures air-conditioning and/or air-conditioning manual operator in air-conditioning and/or air-conditioning manual operator
It is alarmed according to alarm command using one or more type of alarms, to warn the ptc heater of user's air-conditioning to be abnormal.
It will be understood by those skilled in the art that ptc heater abnormal alarm mode includes but is not limited to above example, it may also include other
Type of alarm such as audio alert etc. does not carry out concrete restriction to type of alarm in the present invention.
The detection method of the ptc heater of air-conditioning provided in this embodiment pre-establishes the fever model of ptc heater,
Whether the power of the ptc heater obtained according to fever model real-time detection exceeds at least one described normal work section, if
It is to send alarm command to trigger alarm.The technical solution of the present embodiment by preset ptc heater fever model, according to
The fever model is measured in real time the power of air-conditioning ptc heater, to report immediately when power is beyond normal work section
It is alert, the abnormality detection and alarm to ptc heater are realized, and realize the detection to all types exception of ptc heater
And alarm, and user can take in time effective treatment measures according to alarm, prevent the accidents such as the fire being likely to occur, and it is real
Safety monitoring and the protection to air-conditioning and its ptc heater are showed.
As shown in Fig. 2, being a kind of process of the detection method of the ptc heater of air-conditioning provided by Embodiment 2 of the present invention
The technical solution of figure, the present embodiment is suitable for the case where carrying out abnormality detection to the ptc heater of air-conditioning.This method can be by sky
The detection device of the ptc heater of tune executes, which can be realized by the way of software and/or hardware, configures in sky
It is executed in tune or in air-conditioning manual operator.
The detection method of the ptc heater of air-conditioning provided in this embodiment specifically comprises the following steps:
Step 210, the fever model for pre-establishing ptc heater, include in fever model ptc heater at least one
Section is worked normally, further includes at least one abnormal work section of ptc heater in the fever model.
Ptc heater for configuration in air-conditioning in the present embodiment, initially sets up the fever mould of the ptc heater
Type, wherein at least one in the fever model of the PTC including the ptc heater works normally section.The hair of ptc heater
The acquisition process in the normal work section of thermal model is same as the previously described embodiments, and details are not described herein.
Herein for ptc heater fever model, the difference with above-described embodiment be in the fever model further include
At least one abnormal work section of ptc heater.Abnormal work section acquisition modes in the fever model specifically: starting is empty
Tune makes air-conditioning and ptc heater therein operate in a certain abnormality, such as exhaust blower dry-fire condition；Real-time acquisition abnormity state
The running parameter of lower ptc heater；At least one abnormal work section is obtained according to the running parameter that this is acquired in real time.Air-conditioning point
Do not operate under a variety of abnormalities, such as dry combustion method, air outlet block up it is dirty, acquisition obtain multiple abnormal work sections, thus can build
The fever model of vertical ptc heater.The same section of the fever model of the present embodiment ptc heater and above-described embodiment is herein not
It repeats again.It will be understood by those skilled in the art that factory before can according to all common (or thinkable) Exception Types of air-conditioning,
The fever model of ptc heater is established, concrete restriction is not carried out to the Exception Type of air-conditioning in the present invention.
It should be noted that when establishing the fever model of ptc heater, in also optional fever model further include: set in advance
Set the corresponding alarm command of each abnormal operation interval and alarm content and store, also store each alarm command, each alarm content and
The corresponding relationship of each exception operation interval.The detection device of ptc heater sends different according to different abnormal work sections
Alarm command, and then trigger different alarm contents.It should be noted that the corresponding abnormal work section of same Exception Type can
Can be including multiple, then the corresponding alarm command of each exception operation interval of same Exception Type optional in the present embodiment is identical,
And the corresponding alarm command of difference Exception Type is different, the corresponding alarm content of each alarm command is different accordingly.Such as: row
The corresponding alarm content in multiple abnormal work sections of blower dry combustion method is that alarm carries out the short buzzing alarm of regularity；Air outlet is dirty
The stifled corresponding alarm content in multiple abnormal work sections is indicator light flashing；Multiple abnormal work areas of air draft machine blade exception
Between corresponding alarm content be long buzzing alarm, etc..
Whether the power for the ptc heater that step 220, real-time detection obtain exceeds at least one described normal work area
Between.
The fever model of the ptc heater of its configuration is stored in the air-conditioning in the present embodiment, in the fever model
At least one including the ptc heater works normally section.If it is detected that the power of ptc heater is beyond in fever model
Each normal work section then illustrates that power exception may occur for current ptc heater.If it is detected that the power of ptc heater
Section is worked normally at least one of fever model, then illustrates that air-conditioning works normally and continues ptc heater
Power obtains and detection.The power detection process of the ptc heater is same as the previously described embodiments herein, and details are not described herein.
If step 230, power at least one the normal work section beyond described in for detecting ptc heater, then in real time
Whether the power of detection ptc heater is at least one abnormal work section.
It in the present embodiment further include at least one abnormal work of the ptc heater in the fever model of ptc heater
Section, the abnormal work section of ptc heater define the power exception section of ptc heater in air-conditioning.Those skilled in the art
Member is it is appreciated that the parameter in the fever model of ptc heater includes but is not limited to power parameter, such as further includes any exception
The parameters such as the corresponding current parameters of power interval and/or voltage parameter.
It should be noted that the power of ptc heater is in when working normally section, ptc heater is worked normally；PTC
When the power of heater is beyond section is worked normally, illustrate that ptc heater is likely to occur exception.For being likely to occur abnormal show
As whether the detection device of ptc heater is at least one abnormal work section by the power of real-time detection ptc heater
It is determined.Correspondingly, the detection device of ptc heater is if it is detected that the power of ptc heater is at least one abnormal work
Make section, it is determined that exception occurs in current ptc heater, and jumps to and execute subsequent step 250 to carry out abnormality alarm.PTC
The detection device of heater was if it is detected that the power of ptc heater had both been not at any one abnormal work section not also in appointing
It anticipates one and works normally section, then can not determine whether exception occur, need to improve detection frequency at this time and continue to monitor, i.e.,
Execute subsequent step 240.
If step 240 detects that the power of ptc heater exceeds at least one described abnormal work section, according to big
In the first predeterminated frequency of current detection frequency, continues to obtain the power of ptc heater in real time and be measured in real time.
Section is worked normally when the power of ptc heater had both been not at any one, not also in any one abnormal work
Make section, illustrates ptc heater it is possible that power is abnormal.For being likely to occur abnormal ptc heater, can be improved herein
Frequency is detected in order to monitor exception in time.It will be understood by those skilled in the art that current real-time detection is also according to one
The power detection of the progress ptc heater of fixed high-frequency regularity, since frequency is higher therefore in a broad sense it is believed that detection
Process is real-time detection.
It, can be according to being greater than if detecting that the power of ptc heater exceeds at least one described abnormal work section
First predeterminated frequency of current detection frequency continues to obtain the power of ptc heater in real time and be measured in real time.It can before factory
The current detection frequency and first predeterminated frequency are preset, then is carried out after air-conditioning factory according to the current detection frequency
Real-time detection, if detecting that the power of ptc heater had both been not at any one and has worked normally section not also in any one
Real-time detection is then continued according to the first predeterminated frequency for being greater than the current detection frequency in a abnormal work section.Illustratively, may be used
Selecting current detection frequency is 10Hz, and the first predeterminated frequency is 50Hz.
It should be noted that if being in normal work with the power of ptc heater after the first predeterminated frequency detection a period of time
Make section, then it is optional to will test that frequency is adjusted to the current detection frequency (10Hz) and return step 220 is examined in real time again
It surveys.If being in abnormal work section with the power of ptc heater after the first predeterminated frequency detection a period of time, then follow the steps
250.The dynamic detection for using ptc heater power herein, can efficiently carry out the safety detection of ptc heater.
If step 250 detects that the power of ptc heater is at least one abnormal work section, sends alarm and refer to
It enables to trigger alarm.
When the power of ptc heater is at least one abnormal work section, it is different to determine that current ptc heater occurs
Often, for the abnormal work of ptc heater, the detection device of ptc heater sends alarm command to trigger alarm, so that user
Effective treatment measures can be taken in time, prevent the accident being likely to occur, and realize the safety to air-conditioning and its ptc heater
Monitoring and protection.The type of alarm of optional triggering includes at least: buzzing type of alarm, indicator light flashing type of alarm and failure generation
Code shows any one or more in type of alarm.
Each abnormal operation interval of same Exception Type corresponds to identical alarm command in known the present embodiment, and different
Alarm command corresponds to different alarm contents, then ptc heater abnormal work section according to locating for power sends corresponding report
Alert instruction is to trigger corresponding alarm content.Such as: the power of ptc heater is in an abnormal work area of exhaust blower dry combustion method
Between, then alarm content is that alarm carries out the short buzzing alarm of regularity；Alternatively, the power of ptc heater is in, air outlet is dirty to be blocked up
An abnormal work section, then alarm content be indicator light flashing；Alternatively, the power of ptc heater is in air draft machine blade
An abnormal abnormal work section, then alarm content is long buzzing alarm, etc..It follows that user can be according to alarm content
Determine the Exception Type that air-conditioning occurs, realizes the examination to Exception Type, and can take according to determining Exception Type
The early warning and treatment measures of effect, to prevent the accidents such as the fire being likely to occur.
It will be understood by those skilled in the art that the corresponding alarm content of difference Exception Type can be arranged before air-conditioning dispatches from the factory,
Default setting can be used in later period user's use process or voluntarily modify and set.
Step 260, when alarm time duration be more than the preset alarm time when, to configuration in air-conditioning exhaust blower hair
Operating instruction is sent so that exhaust blower operation is radiated.
When alarm time duration is more than the preset alarm time in the present embodiment, illustrate that user can not take in time
The treatment measures of effect carry out abnormality processing.If ptc heater is in abnormality for a long time, in fact it could happen that air-conditioner temperature is excessively high very
To there is fire incident, in order to avoid there is accident, when time duration of alarming is more than the preset alarm time, PTC heating
The detection device of device can send operating instruction to exhaust blower of the configuration in air-conditioning so that exhaust blower operation is radiated, and reduction is empty
Temperature regulating prevents accident.The step has reached when user can not take effective treatment measures to carry out abnormality processing in time, empty
Tune voluntarily takes effective treatment measures to handle the exception of ptc heater, i.e. starting exhaust blower radiates, to shut out
The generation of exhausted accident, realizes the safety monitoring and protection to ptc heater.
It will be understood by those skilled in the art that the preset alarm time is performance and peace of the designer according to ptc heater
The preset alarm time of the time of fire alarming of population parameter setting, such as 15min, different type ptc heater may be different, herein not
It is specifically described and limits.
The detection method of the ptc heater of air-conditioning provided in this embodiment, according to fever model real-time detection ptc heater
Power；Detection frequency was improved if the power of ptc heater has both been not at normal work section not also in abnormal work section
Rate simultaneously continues to detect；Alarm command is sent if the power of ptc heater is in abnormal work section to trigger alarm.This
The technical solution of embodiment by preset ptc heater fever model, according to the fever model to same model in air-conditioning
The power of ptc heater is measured in real time, and to alarm immediately when power is in abnormal work section, is realized and is added to PTC
The detection and alarm of all types exception of hot device, and user can effectively screen the Exception Type of ptc heater and timely
Effective treatment measures are taken, the accidents such as the fire being likely to occur are prevented, realize the safety prison to air-conditioning and its ptc heater
It surveys and protects.
As shown in figure 3, being a kind of signal of the detection device of the ptc heater for air-conditioning that the embodiment of the present invention three provides
The technical solution of figure, the present embodiment is suitable for the case where carrying out abnormality detection to the ptc heater of air-conditioning.The detection device can be with
The detection method of air-conditioning ptc heater described in above-mentioned any embodiment is executed, which can be using software and/or hardware
Mode realizes that configuration executes in air-conditioning or in air-conditioning manual operator terminal.
The detection device of the ptc heater of air-conditioning provided in this embodiment specifically includes: establishing model module 310, detects
Power module 320 and triggering alarm module 330.
Wherein, model module 310 is established for pre-establishing the fever model of ptc heater, includes PTC in fever model
At least one of heater works normally section；Detect power of the power module 320 for the ptc heater that real-time detection obtains
Whether beyond at least one normal work section；If triggering alarm module 330 is for detecting that the power of ptc heater exceeds
At least one works normally section, sends alarm command to trigger alarm.
If optional detection power module 320 is also used to detect that the power of ptc heater is normal without departing from least one
Operation interval continues to obtain the power of ptc heater in real time and be measured in real time.
It further include at least one abnormal work section of ptc heater in the fever model of optional ptc heater.
In the fever model of optional ptc heater further include: preset the corresponding alarm in each abnormal work section
Instruction and alarm content simultaneously store, and also store each alarm command, each alarm content and each abnormal work section
Corresponding relationship.
If optional detection power module 320 is also used to detect the power of ptc heater beyond at least one normal work
Make section, then whether the power of real-time detection ptc heater is at least one abnormal work section.
The type of alarm of optional triggering alarm module 320 includes at least: buzzing type of alarm, indicator light flashing type of alarm
Any one or more in type of alarm is shown with fault code.
If optional detection power module 320 is also used to detect the power of ptc heater beyond at least one abnormal work
Make section, according to the first predeterminated frequency for being greater than current detection frequency, continues to obtain the power of ptc heater in real time and carry out reality
When detect.Optional current detection frequency is 10Hz, and the first predeterminated frequency is 50Hz.
The detection device of the ptc heater of optional air-conditioning further include: control radiating module 340.Wherein, radiating module is controlled
340 for sending operation to exhaust blower of the configuration in air-conditioning and referring to when time duration of alarming is more than the preset alarm time
It enables so that exhaust blower operation is radiated.
The technical solution of the present embodiment by preset ptc heater fever model, according to the fever model in air-conditioning
The power of the ptc heater of same model is measured in real time, and to alarm immediately when power is in abnormal work section, is realized
Detection and alarm to all types exception of ptc heater；And the different Exception Types of optional setting correspond to different alarms
Content, then user can effectively screen the Exception Type of ptc heater and take effective treatment measures in time, prevent to go out
The accidents such as existing fire realize safety monitoring and protection to air-conditioning and its ptc heater.
As shown in figure 4, being a kind of signal of the detection circuit of the ptc heater for air-conditioning that the embodiment of the present invention four provides
The technical solution of figure, the present embodiment is suitable for the case where carrying out abnormality detection to the ptc heater of air-conditioning.The detection circuit can be with
The detection method of air-conditioning ptc heater described in above-mentioned any embodiment is executed, which can be realized by the way of hardware,
Configuration executes in air-conditioning or in air-conditioning manual operator terminal.
Ptc heater uses variable resistance heat pyrexia element, and heating power can be changed by air quantity, locating temperature etc. and be changed,
Compared with traditional conventional resistive electric heater, safety with higher.Fault detection protection circuit can not be real in the prior art
Safety detection now is carried out to the ptc heater of power adjustable.
For the electric heating data under normal condition with ptc heater under all kinds of exceptional conditions in the present embodiment, establishing should
The distinctive fever model of ptc heater.Such as: under dry fire condition, ptc heater is because ambient enviroment calm condition influences, function
Rate can't keep high power as traditional conventional resistive electric heater, and ptc heater only maintains lower fever function at this time
Rate；The design scheme of different type ptc heater is different, therefore minimum heating power is also different, can not quantify.And this implementation
By establishing respective fever model to different types of ptc heater in example, the work of different ptc heaters can be precisely judged
Make state, and takes answer measure accordingly rapidly；
Detection circuit includes: current detection circuit 410, voltage detecting circuit 420 and power detection electricity in the present embodiment
Road 430.Wherein, current detection circuit 410 is electrically connected to obtain the current data of ptc heater in real time with ptc heater；Voltage
Detection circuit 420 is electrically connected to obtain the voltage data of ptc heater in real time with ptc heater；Power-sensing circuit 430 is distinguished
It is electrically connected with current detection circuit 410 and voltage detecting circuit 420, to obtain the current data and voltage of ptc heater in real time
Data, and carry out power detection.
Current detection circuit 410 as shown in Figure 5 optional in the present embodiment is to carry out electric current by copper-manganese material 401 to adopt
Sample the advantage is that at low cost and loss is small.The both ends of specific copper-manganese material 401 are electrically connected with conductor, and wherein first end is led
Body 402 is electrically connected with ptc heater, and second end conductor 403 is electrically connected with power supply, the both ends of copper-manganese material 401 and electric current
Detection circuit 410 is electrically connected, then current detection circuit 410 can obtain the current data of ptc heater by copper-manganese material 401.
Optional voltage detecting circuit 420 is realized by bleeder circuit in the present embodiment, specific voltage detecting circuit 420 and first end
Conductor 402 is electrically connected, to obtain the voltage data of ptc heater by the first end conductor 402.May be used also in other embodiments
Selecting current detection circuit is to carry out current sample using current transformer or other modes, the advantage is that circuit structure is simple,
But it is at high cost.The sample mode of voltage detecting circuit is also not necessarily limited to above-mentioned example.
Optional power-sensing circuit 430 includes Data Computation Unit 431,432 and of data analysis unit in the present embodiment
Data storage cell 433.Wherein, Data Computation Unit 431 is according to the current data and voltage number of the ptc heater obtained in real time
According to, the power of ptc heater is calculated, and carry out ptc heater power swing screening.Data analysis unit 432 obtains
The current data of ptc heater, voltage data and treated power data, and according to 433 storage inside of data storage cell
Ptc heater fever model, test result is analyzed and obtained to the algorithm by searching comparison, then exports corresponding finger
It enables.The fever model, the current data of ptc heater and voltage number of ptc heater are stored in this data storage cell 433
According to etc., partition holding can be carried out according to the different of voltage class herein, not limit the mode of partition holding in the present invention certainly,
As also partition holding can be carried out according to the different of power grade.
The technical solution of the present embodiment by preset ptc heater fever model, according to the fever model in air-conditioning
The power of the ptc heater of same model is measured in real time, and user can effectively screen the Exception Type of ptc heater
And effective treatment measures are taken in time, prevent the accidents such as the fire being likely to occur, realizes to air-conditioning and its ptc heater
Safety monitoring and protection.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (12)
1. a kind of detection method of the positive temperature coefficient ptc heater of air-conditioning characterized by comprising
Pre-establish the fever model of the ptc heater, include in the fever model ptc heater at least one
Work normally section and at least one abnormal work section；
Whether the power for the ptc heater that real-time detection obtains exceeds at least one described normal work section, if inspection
The power of the ptc heater is measured beyond at least one described normal work section, then ptc heater described in real-time detection
Whether power is at least one described abnormal work section；
If so, sending alarm command to trigger alarm.
2. detection method according to claim 1, which is characterized in that in the fever model further include: preset each
The corresponding alarm command in the abnormal work section and alarm content simultaneously store, and also store each alarm command, each report
The corresponding relationship of alert content and each abnormal work section.
3. detection method according to claim 1, which is characterized in that the type of alarm of triggering includes at least: buzzing alarm
Mode, indicator light flashing type of alarm and fault code show any one or more in type of alarm.
4. detection method according to claim 1, which is characterized in that whether the power of ptc heater described in real-time detection
After abnormal work section described at least one, further includes:
If detecting that the power of the ptc heater exceeds at least one described abnormal work section, currently examined according to being greater than
First predeterminated frequency of measured frequency continues to obtain the power of the ptc heater in real time and be measured in real time.
5. detection method according to claim 4, which is characterized in that the current detection frequency be 10Hz, described first
Predeterminated frequency is 50Hz.
6. detection method according to claim 1-5, which is characterized in that further include:
When time duration of alarming is more than the preset alarm time, operation is sent to exhaust blower of the configuration in the air-conditioning and is referred to
It enables so that exhaust blower operation is radiated.
7. a kind of detection device of the positive temperature coefficient ptc heater of air-conditioning characterized by comprising
Model module is established, includes described in the fever model for pre-establishing the fever model of the ptc heater
At least one of ptc heater works normally section and at least one abnormal work section；
Detect power module, the power of the ptc heater obtained for real-time detection whether exceed it is described at least one just
Whether normal operation interval, then the power of ptc heater described in real-time detection are at least one described abnormal work section；
Alarm module is triggered, if for detecting the power of the ptc heater beyond at least one described normal work area
Between and be at least one described abnormal work section, send alarm command with trigger alarm.
8. detection device according to claim 7, which is characterized in that in the fever model further include: preset each
The corresponding alarm command in the abnormal work section and alarm content simultaneously store, and also store each alarm command, each report
The corresponding relationship of alert content and each abnormal work section.
9. detection device according to claim 7, which is characterized in that the type of alarm of the triggering alarm module at least wraps
Include: buzzing type of alarm, indicator light flashing type of alarm and fault code show any one or more in type of alarm.
10. detection device according to claim 7, which is characterized in that the detection power module is also used to, if detection
Power to the ptc heater exceeds at least one described abnormal work section, according to first greater than current detection frequency
Predeterminated frequency continues to obtain the power of the ptc heater in real time and be measured in real time.
11. detection device according to claim 10, which is characterized in that the current detection frequency is 10Hz, described the
One predeterminated frequency is 50Hz.
12. according to the described in any item detection devices of claim 7-11, which is characterized in that further include:
Radiating module is controlled, is used for when time duration of alarming is more than the preset alarm time, to configuration in the air-conditioning
Exhaust blower send operating instruction so that the exhaust blower operation radiate.
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| CN106563227B (en) * | 2016-10-31 | 2019-03-08 | 广东美的制冷设备有限公司 | A kind of dehumidifier method of fire protection, system and dehumidifier |
| CN106597160B (en) * | 2016-12-13 | 2020-05-05 | 广东金赋科技股份有限公司 | Electronic equipment fault detection method and device |
| CN107202927A (en) * | 2017-06-13 | 2017-09-26 | 芜湖桑乐金电子科技有限公司 | The self checking method of heating picture |
| CN107918072A (en) * | 2017-11-16 | 2018-04-17 | 深圳创维空调科技有限公司 | Fault detection method, device and the air conditioner of air conditioner |
| KR20210135710A (en) * | 2020-05-06 | 2021-11-16 | 엘지전자 주식회사 | Air conditioning system and method for controlling same |
| CN113029630B (en) * | 2021-04-29 | 2023-08-01 | 福建坤华智能装备有限公司 | New energy automobile hydrothermal PTC intelligent detection system |
| CN113625095B (en) * | 2021-08-30 | 2024-06-07 | 宁波奥克斯电气股份有限公司 | Automatic test system and test method for auxiliary electric heating power of air conditioner |
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