CN105157237A - Heater control method and control device - Google Patents
Heater control method and control device Download PDFInfo
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- CN105157237A CN105157237A CN201510586921.5A CN201510586921A CN105157237A CN 105157237 A CN105157237 A CN 105157237A CN 201510586921 A CN201510586921 A CN 201510586921A CN 105157237 A CN105157237 A CN 105157237A
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- fan
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Abstract
The invention provides a heater control method and control device. The heater control method comprises the following steps: when receiving a heater starting command, controlling the start of a fan for performing heat dissipation on the heater, and detecting the running current of the fan; and when detecting that the running current of the fan is greater than or equal to the preset current value, controlling the heater to start. The technical scheme provided by the invention can effectively avoid the problem of damage to the surrounding elements due to overhigh heater temperature, and enhances the user safety of the heater.
Description
Technical field
The present invention relates to heater technical field, in particular to a kind of control method of heater and a kind of control device of heater.
Background technology
Because heater temperature is operationally higher, as the Wind-cooling type heater for air-conditioner, in order to avoid causing damage to the components and parts of heater periphery, usually all need to increase blower fan to dispel the heat to heater, but when blower fan breaks down, heater surface temperatures can sharply rise, and may damage the element device of heater periphery.
Current guard method places one at the periphery of heater automatically to recover temperature controller and temperature controller with manual reset, and the two is connected in the control loop of heater.For automatically recovering temperature controller, when the temperature of temperature controller perception is higher than setting break-off signal, temperature controller built-in switch can disconnect, and when temperature controller is lower than the recovery temperature set, temperature controller built-in switch can be connected; For temperature controller with manual reset, when temperature is higher than the protection temperature set, temperature controller can disconnect, and when temperature controller is lower than the recovery temperature set, needs user manually to recover by reset key.
Although increase automatically recover temperature controller and temperature controller with manual reset can starting protection effect to a certain extent, the type selecting of the automatic recovery temperature controller of reality when designing heater and temperature controller with manual reset is cumbersome, needs a large amount of experiments to determine.And owing to automatically recovering the existence of temperature controller and temperature controller with manual reset own temperature protection error, in actual use, when protecting generation, or damage may can be caused to other components and parts of surrounding, also not too safe.
Therefore, how can effectively avoid heter temperature too high and cause damage to become technical problem urgently to be resolved hurrily to the element device of surrounding.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art or correlation technique.
For this reason, one object of the present invention is the control program proposing a kind of new heater, effectively prevent heter temperature too high and the element device of surrounding is caused to the problem of damage, improves the security that heater uses.
For achieving the above object, embodiment according to a first aspect of the invention, proposes a kind of control method of heater, comprising: when receiving the instruction starting described heater, control the fan starting being used for dispelling the heat to described heater, and detect the running current of described blower fan; When detecting that the running current of described blower fan is more than or equal to predetermined current value, control described heater starting.
According to the control method of the heater of the embodiment of the present invention, because the running current of blower fan becomes positive correlation with the rotating speed of blower fan with air quantity, therefore by when receiving the instruction starting heater, control fan starting, and control heater starting when detecting that the running current of blower fan is more than or equal to predetermined current value, make it possible to reach certain value at the air quantity of blower fan, heater is restarted when namely can effectively dispel the heat to heater, effectively prevent heter temperature too high and the element device of surrounding is caused to the problem of damage, improve the security that heater uses.
The control method of heater according to the abovementioned embodiments of the present invention, can also have following technical characteristic:
According to one embodiment of present invention, after the described fan starting of control, also comprise: the operation duration recording described blower fan; If when the operation duration of described blower fan reaches the first scheduled duration, the running current of described blower fan is still less than described predetermined current value, then carry out fault prompting.
According to the control method of the heater of the embodiment of the present invention, when the operation duration of blower fan reaches the first scheduled duration, if the running current of blower fan is still less than predetermined current value, then illustrate that blower fan may break down, therefore need to carry out fault prompting, carry out malfunction elimination with reminding user.Preferably, when carrying out fault and reminding, heater is not started.Wherein, the operation carrying out fault prompting can be sound prompting or display fault message etc.; First scheduled duration can be three minutes, also can be other numerical value.
According to one embodiment of present invention, after the described heater starting of control, also comprise: the running current detecting described blower fan in real time; If detect, the running current of described blower fan is less than described predetermined current value, then control described heater and quit work, and carry out fault prompting.
The control method of heater according to an embodiment of the invention, by after heater starting, if detect, the running current of blower fan is less than above-mentioned predetermined current value, then control heater quits work, can avoid in the course of work of heater, cause because fan operation breaks down heter temperature too high and damage the components and parts of heater periphery, effectively ensure that the safety in utilization of heater.
According to one embodiment of present invention, also comprising: when receiving the instruction of closing described heater, controlling described heater and quitting work, and control described blower fan continuation operation; When the duration controlling described blower fan continuation operation reaches the second scheduled duration, control described blower fan and quit work.
The control method of heater according to an embodiment of the invention, operation second scheduled duration is continued by controlling blower fan after control heater quits work, make it possible to avoid causing damage due to waste heat to the components and parts of surrounding after heater quits work, improve the safety in utilization of heater.Wherein, the second scheduled duration can be three minutes, also can be other numerical value.
According to one embodiment of present invention, described predetermined current value is determined according to minimum current value during described fan operation.
Particularly, can using minimum current value during fan operation as described predetermined current value, also can using the product of minimum current value and a coefficient of specifying as predetermined current value.Namely technical staff can arrange this predetermined current value according to the actual parameter of blower fan and environment for use.
Embodiment according to a second aspect of the present invention, also proposed a kind of control device of heater, comprise: control unit, for when receiving the instruction starting described heater, control the fan starting being used for dispelling the heat to described heater, and when detecting unit detects that the running current of described blower fan is more than or equal to predetermined current value, control described heater starting; Described detecting unit is used for, and after described control unit controls described fan starting, detects the running current of described blower fan.
According to the control device of the heater of the embodiment of the present invention, because the running current of blower fan becomes positive correlation with the rotating speed of blower fan with air quantity, therefore by when receiving the instruction starting heater, control fan starting, and control heater starting when detecting that the running current of blower fan is more than or equal to predetermined current value, make it possible to reach certain value at the air quantity of blower fan, heater is restarted when namely can effectively dispel the heat to heater, effectively prevent heter temperature too high and the element device of surrounding is caused to the problem of damage, improve the security that heater uses.
The control device of heater according to the abovementioned embodiments of the present invention, can also have following technical characteristic:
According to one embodiment of present invention, also comprise: record cell, after controlling described fan starting at described control unit, record the operation duration of described blower fan; Fault reminding unit, for when described recording unit records reaches the first scheduled duration to the operation duration of described blower fan, if the running current of described blower fan is still less than described predetermined current value, then carries out fault prompting.
According to the control device of the heater of the embodiment of the present invention, when the operation duration of blower fan reaches the first scheduled duration, if the running current of blower fan is still less than predetermined current value, then illustrate that blower fan may break down, therefore need to carry out fault prompting, carry out malfunction elimination with reminding user.Preferably, when carrying out fault and reminding, heater is not started.Wherein, the operation carrying out fault prompting can be sound prompting or display fault message etc.; First scheduled duration can be three minutes, also can be other numerical value.
According to one embodiment of present invention, described detecting unit also for, after described control unit controls described heater starting, detect in real time the running current of described blower fan; Described control unit also for, when described detecting unit detects that the running current of described blower fan is less than described predetermined current value, control described heater and quit work, and carry out fault prompting.
The control device of heater according to an embodiment of the invention, by after heater starting, if detect, the running current of blower fan is less than above-mentioned predetermined current value, then control heater quits work, can avoid in the course of work of heater, cause because fan operation breaks down heter temperature too high and damage the components and parts of heater periphery, effectively ensure that the safety in utilization of heater.
According to one embodiment of present invention, described control unit also for: when receiving the instruction of closing described heater, controlling described heater and quitting work, and control described blower fan continue run; When the duration controlling described blower fan continuation operation reaches the second scheduled duration, control described blower fan and quit work.
The control device of heater according to an embodiment of the invention, operation second scheduled duration is continued by controlling blower fan after control heater quits work, make it possible to avoid causing damage due to waste heat to the components and parts of surrounding after heater quits work, improve the safety in utilization of heater.Wherein, the second scheduled duration can be three minutes, also can be other numerical value.
According to one embodiment of present invention, also comprise: processing unit, for determining described predetermined current value according to minimum current value during described fan operation.
Particularly, can using minimum current value during fan operation as described predetermined current value, also can using the product of minimum current value and a coefficient of specifying as predetermined current value.Namely technical staff can arrange this predetermined current value according to the actual parameter of blower fan and environment for use.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 shows the schematic flow diagram of the control method of heater according to an embodiment of the invention;
Fig. 2 shows the schematic block diagram of the control device of heater according to an embodiment of the invention;
Fig. 3 shows the schematic block diagram of the control system of heater according to an embodiment of the invention.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
Fig. 1 shows the schematic flow diagram of the control method of heater according to an embodiment of the invention.
As shown in Figure 1, the control method of heater according to an embodiment of the invention, comprising:
Step 102, when receiving the instruction starting described heater, controlling the fan starting being used for dispelling the heat to described heater, and detecting the running current of described blower fan;
Step 104, when detecting that the running current of described blower fan is more than or equal to predetermined current value, controls described heater starting.
Particularly, because the running current of blower fan becomes positive correlation with the rotating speed of blower fan with air quantity, therefore by when receiving the instruction starting heater, control fan starting, and control heater starting when detecting that the running current of blower fan is more than or equal to predetermined current value, make it possible to reach certain value at the air quantity of blower fan, heater is restarted when namely can effectively dispel the heat to heater, effectively prevent heter temperature too high and the element device of surrounding is caused to the problem of damage, improve the security that heater uses.
The control method of heater according to the abovementioned embodiments of the present invention, can also have following technical characteristic:
According to one embodiment of present invention, after the described fan starting of control, also comprise: the operation duration recording described blower fan; If when the operation duration of described blower fan reaches the first scheduled duration, the running current of described blower fan is still less than described predetermined current value, then carry out fault prompting.
When the operation duration of blower fan reaches the first scheduled duration, if the running current of blower fan is still less than predetermined current value, then illustrate that blower fan may break down, and therefore needs to carry out fault prompting, carries out malfunction elimination with reminding user.Preferably, when carrying out fault and reminding, heater is not started.Wherein, the operation carrying out fault prompting can be sound prompting or display fault message etc.; First scheduled duration can be three minutes, also can be other numerical value.
According to one embodiment of present invention, after the described heater starting of control, also comprise: the running current detecting described blower fan in real time; If detect, the running current of described blower fan is less than described predetermined current value, then control described heater and quit work, and carry out fault prompting.
By after heater starting, if detect, the running current of blower fan is less than above-mentioned predetermined current value, then control heater quits work, can avoid in the course of work of heater, cause because fan operation breaks down heter temperature too high and damage the components and parts of heater periphery, effectively ensure that the safety in utilization of heater.
According to one embodiment of present invention, also comprising: when receiving the instruction of closing described heater, controlling described heater and quitting work, and control described blower fan continuation operation; When the duration controlling described blower fan continuation operation reaches the second scheduled duration, control described blower fan and quit work.
Continuing operation second scheduled duration by controlling blower fan after control heater quits work, making it possible to avoid causing damage due to waste heat to the components and parts of surrounding after heater quits work, improve the safety in utilization of heater.Wherein, the second scheduled duration can be three minutes, also can be other numerical value.
According to one embodiment of present invention, described predetermined current value is determined according to minimum current value during described fan operation.
Particularly, can using minimum current value during fan operation as described predetermined current value, also can using the product of minimum current value and a coefficient of specifying as predetermined current value.Namely technical staff can arrange this predetermined current value according to the actual parameter of blower fan and environment for use.
Fig. 2 shows the schematic block diagram of the control device of heater according to an embodiment of the invention.
As shown in Figure 2, the control device 200 of heater according to an embodiment of the invention, comprising: control unit 202 and detecting unit 204.
Wherein, control unit 202, for when receiving the instruction starting described heater, controls the fan starting being used for dispelling the heat to described heater, and when detecting unit 204 detects that the running current of described blower fan is more than or equal to predetermined current value, control described heater starting; Described detecting unit 204 for, after described control unit 202 controls described fan starting, detect the running current of described blower fan.
Particularly, because the running current of blower fan becomes positive correlation with the rotating speed of blower fan with air quantity, therefore by when receiving the instruction starting heater, control fan starting, and control heater starting when detecting that the running current of blower fan is more than or equal to predetermined current value, make it possible to reach certain value at the air quantity of blower fan, heater is restarted when namely can effectively dispel the heat to heater, effectively prevent heter temperature too high and the element device of surrounding is caused to the problem of damage, improve the security that heater uses.
The control device 200 of heater according to the abovementioned embodiments of the present invention, can also have following technical characteristic:
According to one embodiment of present invention, also comprise: record cell 206, after controlling described fan starting at described control unit 202, record the operation duration of described blower fan; Fault reminding unit 208, for when the operation duration that described record cell 206 is recorded to described blower fan reaches the first scheduled duration, if the running current of described blower fan is still less than described predetermined current value, then carries out fault prompting.
When the operation duration of blower fan reaches the first scheduled duration, if the running current of blower fan is still less than predetermined current value, then illustrate that blower fan may break down, and therefore needs to carry out fault prompting, carries out malfunction elimination with reminding user.Preferably, when carrying out fault and reminding, heater is not started.Wherein, the operation carrying out fault prompting can be sound prompting or display fault message etc.; First scheduled duration can be three minutes, also can be other numerical value.
According to one embodiment of present invention, described detecting unit 204 also for, after described control unit 202 controls described heater starting, detect in real time the running current of described blower fan; Described control unit 202 also for, when described detecting unit 204 detects that the running current of described blower fan is less than described predetermined current value, control described heater and quit work, and carry out fault prompting.
By after heater starting, if detect, the running current of blower fan is less than above-mentioned predetermined current value, then control heater quits work, can avoid in the course of work of heater, cause because fan operation breaks down heter temperature too high and damage the components and parts of heater periphery, effectively ensure that the safety in utilization of heater.
According to one embodiment of present invention, described control unit 202 also for: when receiving the instruction of closing described heater, controlling described heater and quitting work, and control described blower fan continue run; When the duration controlling described blower fan continuation operation reaches the second scheduled duration, control described blower fan and quit work.
Continuing operation second scheduled duration by controlling blower fan after control heater quits work, making it possible to avoid causing damage due to waste heat to the components and parts of surrounding after heater quits work, improve the safety in utilization of heater.Wherein, the second scheduled duration can be three minutes, also can be other numerical value.
According to one embodiment of present invention, also comprise: processing unit 210, for determining described predetermined current value according to minimum current value during described fan operation.
Particularly, can using minimum current value during fan operation as described predetermined current value, also can using the product of minimum current value and a coefficient of specifying as predetermined current value.Namely technical staff can arrange this predetermined current value according to the actual parameter of blower fan and environment for use.
Fig. 3 shows the schematic block diagram of the control system of heater according to an embodiment of the invention.
As shown in Figure 3, the control system of heater according to an embodiment of the invention, comprising: central processing unit 302, memory 304, blower fan current sensing means 314, fan control module 310, heater control module 306, blower fan 312, heater 308, display unit 316; Central processing unit 302 is respectively by the operation of heater control module 306 and fan control module 310 control heater 308 and blower fan 312, memory 304 is used for storing the information such as the operation of blower fan 312 and heater 308, blower fan current sensing means 314 is used for detecting blower fan 312 running current, fan control module 310 controls blower fan 312 and runs, heater control module 306 control heater 308 runs, blower fan 312 is lowered the temperature for giving heater 308, heater 308 produces heat for carrying out heating, and display unit 316 shows the information such as fault.
The course of work is as follows: heater 308 is when design, and the minimum current value A0 needing measurement blower fan 312 to run also is stored in memory 304; Operationally, central processing unit 302 first controls blower fan 312 and runs heater, and then blower fan current sensing means 314 detects blower fan electric current, when blower fan electric current is greater than A0, could start heater 308; Real-Time Monitoring blower fan electric current in the operation of heater 308, when blower fan electric current is less than A0, closes heater 308 immediately.This process specifically comprises the following steps:
S0: heater 308 is when design, and the minimum current value A0 needing measurement blower fan 312 to run also is stored in memory 304;
S1: heater 308 starts: when heater 308 starts, central processing unit 302 first controls blower fan 312 and runs, and then blower fan current sensing means 314 detects blower fan electric current, when blower fan electric current is greater than A0, restarts heater 308.
S2: heater 308 runs: operationally, blower fan current sensing means 314 Real-Time Monitoring blower fan electric current, when blower fan electric current is less than A0, central processing unit 302 controls to cut out heater 308 heater 308 immediately, and sends fault message to display unit 316.
S3: heater 308 stops: when heater 308 stops, central processing unit 302 first controls to cut out heater 308, and controls to close blower fan 312 again after blower fan 312 continues to run a period of time (such as 3 minutes, can set according to actual conditions).
Simultaneously, in step sl, if after central processing unit 302 controls fan operation, blower fan current sensing means 314 (such as 3 minutes at the appointed time, can set according to actual conditions) the blower fan electric current that detects all is less than A0, then and central processing unit 302 sends fault message to display unit 316.
In the technical scheme of above-described embodiment, the testing result of blower fan current sensing means 314 also can directly issue heater control module 306, carried out the operation of control heater 308 according to the testing result of blower fan current sensing means 314 by heater control module 306, and without the need to by central processing unit 302; The testing result of blower fan current sensing means 314 can use the method for comparison to realize with comparing of minimum current A0, also can directly use hardware circuit to realize; Data in memory 304 can leave in the memory of heater 308 self, also can leave in can with other devices of heater 308 communication, such as external controller, line control machine, remote controller, mobile phone, intelligent terminal etc., remote network service device etc.
In addition, those skilled in the art it will be appreciated that, the heater mentioned in the present invention can be the electric heater that indoor apparatus of air conditioner uses, also can be the electric heater in gas furnace, wall-hung boiler, warm-air drier, every need by blower fan to the use scenes that heater dispels the heat all be applicable to the present invention propose heater control program.
More than be described with reference to the accompanying drawings technical scheme of the present invention; consider in prior art it is by automatically recovering temperature controller and temperature controller with manual reset realizes overheat protector; but owing to automatically recovering the existence of temperature controller and temperature controller with manual reset own temperature protection error; make in actual use; when protecting generation, or damage may can be caused to other components and parts of surrounding.Therefore, the present invention proposes a kind of control program of new heater, certain value can be reached at the air quantity of blower fan, heater is restarted when namely can effectively dispel the heat to heater, and in the running of heater, carrying out the start and stop of control heater work by detecting the running current of blower fan, effectively prevent heter temperature too high and the element device of surrounding is caused to the problem of damage, improve the security that heater uses.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a control method for heater, is characterized in that, comprising:
When receiving the instruction starting described heater, controlling the fan starting being used for dispelling the heat to described heater, and detecting the running current of described blower fan;
When detecting that the running current of described blower fan is more than or equal to predetermined current value, control described heater starting.
2. the control method of heater according to claim 1, is characterized in that, after the described fan starting of control, also comprises:
Record the operation duration of described blower fan;
If when the operation duration of described blower fan reaches the first scheduled duration, the running current of described blower fan is still less than described predetermined current value, then carry out fault prompting.
3. the control method of heater according to claim 1, is characterized in that, after the described heater starting of control, also comprises:
The running current of the described blower fan of real-time detection;
If detect, the running current of described blower fan is less than described predetermined current value, then control described heater and quit work, and carry out fault prompting.
4. the control method of heater according to claim 1, is characterized in that, also comprises:
When receiving the instruction of closing described heater, controlling described heater and quitting work, and control described blower fan continuation operation;
When the duration controlling described blower fan continuation operation reaches the second scheduled duration, control described blower fan and quit work.
5. the control method of heater according to any one of claim 1 to 4, is characterized in that, determines described predetermined current value according to minimum current value during described fan operation.
6. a control device for heater, is characterized in that, comprising:
Control unit, for when receiving the instruction starting described heater, control the fan starting being used for dispelling the heat to described heater, and when detecting unit detects that the running current of described blower fan is more than or equal to predetermined current value, control described heater starting;
Described detecting unit is used for, and after described control unit controls described fan starting, detects the running current of described blower fan.
7. the control device of heater according to claim 6, is characterized in that, also comprises:
Record cell, after controlling described fan starting at described control unit, records the operation duration of described blower fan;
Fault reminding unit, for when described recording unit records reaches the first scheduled duration to the operation duration of described blower fan, if the running current of described blower fan is still less than described predetermined current value, then carries out fault prompting.
8. the control device of heater according to claim 6, is characterized in that, described detecting unit also for, after described control unit controls described heater starting, detect in real time the running current of described blower fan;
Described control unit also for, when described detecting unit detects that the running current of described blower fan is less than described predetermined current value, control described heater and quit work, and carry out fault prompting.
9. the control device of heater according to claim 6, is characterized in that, described control unit also for:
When receiving the instruction of closing described heater, controlling described heater and quitting work, and control described blower fan continuation operation;
When the duration controlling described blower fan continuation operation reaches the second scheduled duration, control described blower fan and quit work.
10. the control device of the heater according to any one of claim 6 to 9, is characterized in that, also comprises:
Processing unit, for determining described predetermined current value according to minimum current value during described fan operation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510586921.5A CN105157237B (en) | 2015-09-15 | 2015-09-15 | The control method and control device of heater |
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| CN201510586921.5A CN105157237B (en) | 2015-09-15 | 2015-09-15 | The control method and control device of heater |
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| CN105157237A true CN105157237A (en) | 2015-12-16 |
| CN105157237B CN105157237B (en) | 2019-03-08 |
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| CN201510586921.5A Active CN105157237B (en) | 2015-09-15 | 2015-09-15 | The control method and control device of heater |
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| CN106042834A (en) * | 2016-06-24 | 2016-10-26 | 北京新能源汽车股份有限公司 | Control method and system for warm air of electric automobile air conditioner |
| CN106053998A (en) * | 2016-07-15 | 2016-10-26 | 珠海格力电器股份有限公司 | Detection method for PTC heater of air conditioner and detection device thereof |
| CN112394659A (en) * | 2020-10-24 | 2021-02-23 | 广东格兰仕集团有限公司 | Fan current detection control method for household appliance |
| CN113531913A (en) * | 2021-06-28 | 2021-10-22 | 青岛海尔空调器有限总公司 | Safety protection control method and device of warm air blower and warm air blower |
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|---|---|
| CN105157237B (en) | 2019-03-08 |
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