CN105423512A - Heat dissipation control device of electronic control module, and air conditioner and control method thereof - Google Patents
Heat dissipation control device of electronic control module, and air conditioner and control method thereof Download PDFInfo
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- CN105423512A CN105423512A CN201510970873.XA CN201510970873A CN105423512A CN 105423512 A CN105423512 A CN 105423512A CN 201510970873 A CN201510970873 A CN 201510970873A CN 105423512 A CN105423512 A CN 105423512A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
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- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The invention provides a heat dissipation control device of an electronic control module, and an air conditioner and a control method thereof. The heat dissipation control device comprises a semiconductor cooler and a control module, wherein the semiconductor cooler comprises a cold end and a hot end, the cold end is used for dissipate the heat of the electronic control module, and the hot end is used for releasing heat; and the control module is electronically connected with the semiconductor cooler, is used for obtaining the temperature value of the electronic control module and adjusting the power supply current of the semiconductor cooler according to the temperature value, so as to enable the temperature of the electronic control module to be maintained within a preset range. The heat dissipation control device of the electronic control module, provided by the invention, uses the thermo-electric effect of the semiconductor cooler to supply cold to the electronic control module, so as to accelerate the heat dissipation of the electronic control module, and the heat dissipation effect is good; the control module can be used for adjusting the power supply current of the semiconductor cooler according to the temperature of the electronic control module, so as to maintain the temperature of the electronic control module to be within the preset range and not to be too low, therefore, energy waste caused by over cooling to the electronic control module can be avoided.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of controller for heat sink of electronic control module, air-conditioner and control method thereof.
Background technology
At present, convertible frequency air-conditioner is commercially more and more universal, comprises some worst hot case areas, the utilization of convertible frequency air-conditioner is also more and more extensive, but under high-temperature refrigeration operating mode, the temperature of convertible frequency air-conditioner electronic control module is also very high, and the heat dissipation problem how solving electronic control module is extremely important.The main flow way that present stage addresses this problem mainly contains both direction, and one is the fin infinitely strengthening electronic control module, and two is utilize refrigerant pipe heat dissipation technology to dispel the heat to electronic control module.But the first way radiating effect is not very desirable, the second way sacrifices the refrigerating capacity of system to a certain extent and the vibration of refrigerant pipe can affect the radiating effect in later stage, and complex process, and there is condensed water hidden danger.In addition, above-mentioned way can only be solely electronic control module continued down, can not distinguish electronic control module the need of cooling, even if therefore electronic control module is reduced to safe temperature, air-conditioner still carrying out cooling work, causes energy waste.
Summary of the invention
In order to solve the problems of the technologies described above one of at least, one object of the present invention is to provide a kind of effectively can control the controller for heat sink of the electronic control module in preset range to electronic control module heat radiation by the temperature of electronic control module.
Another object of the present invention is to provide a kind of air-conditioner comprising the controller for heat sink of above-mentioned electronic control module.
Another object of the present invention is the control method providing a kind of above-mentioned air-conditioner.
To achieve these goals, the embodiment of first aspect present invention provides a kind of controller for heat sink of electronic control module, comprising: semiconductor cooler, comprises cold junction and hot junction, and described cold junction is used for for described electronic control module heat radiation, and described hot junction is used for release heat; And control module, being electrically connected with described semiconductor cooler, for obtaining the temperature value of described electronic control module, and regulating the supply current of described semiconductor cooler according to described temperature value, maintain in preset range to make the temperature of described electronic control module.
The controller for heat sink of the electronic control module that the embodiment of first aspect present invention provides, utilizes the heat-electrical effect of semiconductor cooler to provide cold for electronic control module, and make electronic control module accelerate heat radiation, good heat dissipation effect, reliability is high, and friction; And control module can regulate the supply current of semiconductor cooler according to the temperature of electronic control module, and then the cold regulating semiconductor cooler to export, the radiating rate of electronic control module is controlled, so that the temperature of electronic control module is maintained in default safe temperature range, and can not fall too low, thus avoid electronic control module lowered the temperature the energy dissipation excessively caused.
Specifically, the electronic control module of existing air-conditioner, the radiating effect of its heat abstractor is undesirable, and exist condensed water hidden danger, cooling excessively cause the problems such as energy consumption waste; And the controller for heat sink of electronic control module provided by the invention, be intended to the temperature of electronic control module be controlled, in the safe temperature range preset, its safe operation can either be ensured like this, energy consumption can not be caused again to waste.Particularly, after semiconductor cooler energising, due to heat-electrical effect, its cold junction temperature reduces, exportable cold, and hot-side temperature raises, can release heat, the cold junction therefore by semiconductor cooler carries cold to electronic control module, thus improves the radiating rate of electronic control module, and the cold that semiconductor cooler exports is how many directly related with the supply current of semiconductor cooler, therefore the cold that the supply current that control module passes through adjustment semiconductor cooler can effectively regulate semiconductor cooler to export, and then control the radiating rate of electronic control module, and the foundation regulated is the actual temperature of electronic control module, thus can the temperature of electronic control module be maintained in default safe temperature range, and can not fall too low, namely the thermostatically controlled object of electronic control module is realized, as for control module, it can be the independent control module for controlling semiconductor cooler, also can be integrated in the control module of air-conditioner, in addition, the good refrigeration effect of semiconductor cooler, can realize fast cooling, reliability is high, and work process in noiseless, friction, evaporated condensation water, thus can not affect the operation of air-conditioner miscellaneous part.
It should be noted that, cold refers to the capacity of water of the absorption heat that cryogenic object has, and the temperature of object is lower, and the ability absorbing heat is larger, then the cold had is more.
In addition, the controller for heat sink of the electronic control module in above-described embodiment provided by the invention can also have following additional technical feature:
In technique scheme, described control module comprises: detecting unit, for detecting the temperature of described electronic control module, and sends temperature value; And performance element, being connected with described semiconductor cooler with described detecting unit, for receiving described temperature value, and regulating the supply current of described semiconductor cooler according to described temperature value.
Control module comprises detecting unit and performance element, detecting unit accurately detects the temperature of electronic control module, as regulation and control foundation, performance element is according to the supply current of regulation and control according to corresponding adjustment semiconductor cooler, the cold that semiconductor cooler is exported and the actual needs of electronic control module match, thus the temperature of electronic control module is maintained in default temperature range, realize thermostatically controlled object.Particularly, detecting unit can be temperature sensor, infrared sensor equitemperature checkout gear.
In above-mentioned arbitrary technical scheme; the controller for heat sink of described electronic control module also comprises: high temperature protection module; for detecting the temperature of described electronic control module in real time, and when the temperature of described electronic control module meets or exceeds set temperature value, send shutdown command to described air-conditioner.
When temperature due to electronic control module is too high; electric control element may be burned soon; therefore by arranging high temperature protection module; the temperature of electronic control module is monitored in real time, under any circumstance, as long as the temperature of electronic control module meets or exceeds set temperature value; shutdown command is sent at once to air-conditioner; air-conditioner is directly shut down protection, to avoid electric control element to be burned, thus effective superheat protecting function is served to air-conditioner.
In above-mentioned arbitrary technical scheme, described cold junction and described electronic control module fit.
The cold junction of semiconductor cooler is directly fitted with electronic control module, then the cold of cold junction output can be directly passed to electronic control module, avoids the loss in cold quantity transmission process, thus improves the utilization rate of cold, improve the radiating rate of electronic control module.Certainly; those skilled in the art is to be understood that; the cold junction of semiconductor cooler also can not fit with electronic control module; namely arrange between cold junction and electronic control module and there is certain distance; by blower fan or other devices, cold is blowed to electronic control module; or the modes such as cold quantity transmission passage are set between cold junction and electronic control module and cold are delivered to electronic control module; will not enumerate at this; all can realize the object accelerating electronic control module cooling; therefore, these technical schemes are also in protection scope of the present invention.As for the particular location of cold junction, generally be fitted in the region of electric control element dense distribution, the temperature of this region electronic control module is higher, need to improve radiating rate, and electric control element distribution is less or do not have the place of electric control element, because temperature is general not high, semiconductor cooler is not therefore needed to carry out auxiliary heat dissipation.
In above-mentioned arbitrary technical scheme, described hot junction is provided with fin.
In the hot junction of semiconductor cooler, fin is set, fin can accelerate the thermal release speed in hot junction, because cold junction and hot junction cooperatively interact, and adjusted in concert, thus the cold output speed of cold junction also can improve, thus improves the radiating rate of electronic control module further.
In above-mentioned arbitrary technical scheme, the controller for heat sink of described electronic control module also comprises: blower fan, be electrically connected with described control module, described control module controls described blower fan and rotates or stop, and on described hot junction and/or the described fin air supply direction that is positioned at described blower fan or air draught direction.
Utilize blower fan to accelerate the air flowing in hot junction, the radiating rate in hot junction can be improved further, thus improve the radiating rate of electronic control module further; Utilize control module to control rotation or the stopping of blower fan, the radiating rate in hot junction can be regulated to a certain extent, concrete adjustment process is determined according to the temperature of electronic control module, like this, to control the supply current of semiconductor cooler, be auxiliary to control blower fan, realized the temperature-constant operation of electronic control module by Comprehensive Control, better effects if, reliability is higher.
The embodiment of second aspect present invention provides a kind of air-conditioner, comprising: electronic control module; With the controller for heat sink of the electronic control module such as according to any one of above-mentioned first aspect embodiment, for being the heat radiation of described electronic control module, and the temperature of described electronic control module is maintained in preset range.
The air-conditioner that the embodiment of second aspect present invention provides, because being provided with the controller for heat sink of the electronic control module any one of first aspect embodiment, thus can either ensure the safe operation of electronic control module, turn avoid energy consumption waste.
In technique scheme, described air-conditioner is transducer air conditioning, and described electronic control module is frequency conversion electrical control module.
Compared to air-conditioner with fixed frequency, the heat that the frequency conversion electrical control module of transducer air conditioning produces is more, more easily there is superheating phenomenon, thus the above-mentioned controller for heat sink of frequency conversion electrical control module installation being transducer air conditioning is necessary, significantly can promote the heat-sinking capability of transducer air conditioning, make its operation lasting stability more under worst hot case, and then expand the market competitiveness of transducer air conditioning.
The embodiment of third aspect present invention provides a kind of control method of air-conditioner, for controlling the air-conditioner any one of above-mentioned second aspect embodiment, comprising: start step: control semiconductor cooler after start and run the first preset duration with pre-set current value; Detecting step: the temperature detecting electronic control module, obtains temperature value; Regulation and control step: the supply current regulating described semiconductor cooler according to described temperature value, to regulate the temperature of described electronic control module; Recheck step: interval second preset duration, returns execution detecting step.
The control method of the air-conditioner that the embodiment of third aspect present invention provides, can ensure electronic control module safe operation in the temperature range preset, thus energy consumption is little, and reliability is high.Particularly, due in the process of start, the workload of electronic control module is larger, easily rise to higher temperature in the short period of time, therefore semiconductor cooler is first allowed to run a period of time with pre-set current value after start, pre-set current value is relatively large current value, to ensure that semiconductor cooler efficiently can export cold, thus avoids electronic control module temperature in start process to rise to too high; And in the process of air-conditioner even running, then according to the observed temperature of electronic control module, specifically regulate the supply current of semiconductor cooler, or increase, or reduce, or remain unchanged, the cold exported to regulate semiconductor cooler, makes the actual needs of itself and electronic control module match, and then regulate the radiating rate of electronic control module, make the temperature of electronic control module maintain in default safe temperature range, so both ensure that the safe operation of electronic control module, turn avoid the waste of the energy; And in the process of even running, certain interval of time carries out one-time detection and regulation and control, the energy consumption waste detected and regulation and control too frequently cause can be avoided.
In addition, the control method of the air-conditioner in above-described embodiment provided by the invention can also have following additional technical feature:
In technique scheme, described regulation and control step specifically comprises: judge whether described temperature value is less than the first preset temperature, and when described temperature value is not less than described first preset temperature, the supply current controlling described semiconductor cooler is described pre-set current value; When described temperature value is less than described first preset temperature, judge whether described temperature value is less than the second preset temperature, when described temperature value is not less than described second preset temperature, the supply current controlling described semiconductor cooler remains unchanged; When described temperature value is less than described second preset temperature, the supply current controlling described semiconductor cooler reduces setting value; Wherein, described first preset temperature is greater than described second preset temperature.
First preset temperature is the higher limit of electronic control module safe operation, and the second preset temperature is the lower limit of electronic control module safe operation.Due to electronic control module be in higher temperature time, exist and burn out the danger of electric control element, consequence is comparatively serious, and when being in lower temperature, then the problem of just energy consumption waste, can not have influence on the normal operation of air-conditioner, affect relatively little; Therefore first judge whether the temperature of electronic control module is less than the first preset temperature, in other words, whether higher than safe range, judge whether electronic control module is in high risk state, to make corresponding control in time, ensure the normal operation of air-conditioner; Ensureing under the prerequisite that air-conditioner normally runs, then judging whether observed temperature is less than the second preset temperature, in other words, whether lower than safe range, then making corresponding control, to avoid the waste of energy consumption; Like this, control procedure is made a distinction between the important and the lesser one, rationally reliably.As for concrete adjustment process, when the temperature value of electronic control module is too high, during beyond preset range, semiconductor cooler is needed to run with larger supply current, be specially pre-set current value, certainly be not limited to pre-set current value, to improve the radiating rate of electronic control module, its temperature be reduced in preset range gradually; If the temperature value of electronic control module is in preset range, namely the radiating rate of electronic control module is suitable, and thus the supply current of semiconductor cooler remains unchanged; If the temperature value of electronic control module is lower than preset range, then need the supply current reducing electronic control module, be specifically as follows fixing setting value, be certainly not limited to the setting value that this is fixing, suitably to reduce the radiating rate of electronic control module, its temperature is gone up gradually in preset range.
In above-mentioned arbitrary technical scheme, the control method of described air-conditioner also comprises: high temperature protection step: the temperature detecting described electronic control module after start in real time, and when the temperature of described electronic control module meets or exceeds the 3rd preset temperature, control the shutdown of described air-conditioner; Wherein, described 3rd preset temperature is greater than described first preset temperature.
3rd preset temperature is the higher limit that electronic control module can be run, and when the temperature of electronic control module is increased to this temperature, the possibility that electric control element burns out is larger.Therefore the setting of high temperature protection step; make air-conditioner when the temperature of electronic control module is increased to this temperature; can directly shut down to protect electronic control module; the situation avoiding electric control element to burn out occurs; thus further ensure the safe operation of electronic control module, further increase the security of air-conditioner.
In above-mentioned arbitrary technical scheme, described pre-set current value is the maximum supply current of described semiconductor cooler, when described semiconductor cooler runs with maximum supply current, the temperature of described electronic control module can be made to be reduced to below described first preset temperature.
Pre-set current value is set to the maximum supply current of semiconductor cooler, then semiconductor cooler is in the process of starting shooting and when electronic control module is in high temperature risk status, all farthest can carry cold, to ensure that electronic control module is lowered the temperature with the fastest speed, the possibility burnt out by electric control element drops to minimum, thus ensure that the safe operation of electronic control module; Certainly, model and the maximum supply current of semiconductor cooler should be suitable with electronic control module, during can ensure that air-conditioner runs under worst operating mode, the temperature of electronic control module also can be reduced to the first preset temperature by semiconductor cooler, below the higher limit of i.e. safe temperature, putting before this, the temperature of electronic control module could control in safe temperature range by semiconductor cooler, to ensure its functional reliability.
Additional aspect of the present invention and advantage become obvious by description part below, or are 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 is the partial structurtes schematic diagram of the air-conditioner described in some embodiments of the invention;
Fig. 2 is the schematic flow sheet of the control method of air-conditioner described in some embodiments of the invention.
Wherein, the corresponding relation in Fig. 1 between Reference numeral and component names is:
10 electronic control module, 20 semiconductor coolers, 21 cold junctions, 22 hot junctions, 23 fin, 30 blower fans;
Wherein, in figure, arrow represents air-flow direction.
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.
Referring to Fig. 1 to Fig. 2, the controller for heat sink of electronic control module according to some embodiments of the invention, air-conditioner and control method thereof are described.
As shown in Figure 1, the controller for heat sink of the electronic control module that the embodiment of first aspect present invention provides, comprising: semiconductor cooler 20 and control module (not shown).
Particularly, semiconductor cooler 20 comprises cold junction 21 and hot junction 22, and cold junction 21 is for dispelling the heat for electronic control module 10, and hot junction 22 is for release heat; Control module is electrically connected with semiconductor cooler 20, for obtaining the temperature value of electronic control module 10, and regulating the supply current of semiconductor cooler 20 according to temperature value, maintaining in preset range to make the temperature of electronic control module 10.
The controller for heat sink of the electronic control module that the embodiment of first aspect present invention provides, utilizes the heat-electrical effect of semiconductor cooler 20 to provide cold for electronic control module 10, and make electronic control module 10 accelerate heat radiation, good heat dissipation effect, reliability is high, and friction; And control module can regulate the supply current of semiconductor cooler 20 according to the temperature of electronic control module 10, and then the cold regulating semiconductor cooler 20 to export, the radiating rate of electronic control module 10 is controlled, so that the temperature of electronic control module 10 is maintained in default safe temperature range, and can not fall too low, thus avoid electronic control module 10 lowered the temperature the energy dissipation excessively caused.
Particularly, after semiconductor cooler 20 is energized, due to heat-electrical effect, its cold junction 21 temperature reduces, exportable cold, and hot junction 22 temperature raises, can release heat, the cold junction 21 therefore by semiconductor cooler 20 carries cold to electronic control module 10, thus improves the radiating rate of electronic control module 10, and the cold that semiconductor cooler 20 exports is how many directly related with the supply current of semiconductor cooler 20, therefore the cold that the supply current that control module passes through adjustment semiconductor cooler 20 can effectively regulate semiconductor cooler 20 to export, and then control the radiating rate of electronic control module 10, and the foundation regulated is the actual temperature of electronic control module 10, thus can the temperature of electronic control module 10 be maintained in default safe temperature range, and can not fall too low, namely the thermostatically controlled object of electronic control module 10 is realized, as for control module, it can be the independent control module for controlling semiconductor cooler 20, also can be integrated in the control module of air-conditioner, in addition, the good refrigeration effect of semiconductor cooler 20, can realize fast cooling, reliability is high, and work process in noiseless, friction, evaporated condensation water, thus can not affect the operation of air-conditioner miscellaneous part.
It should be noted that, cold refers to the capacity of water of the absorption heat that cryogenic object has, and the temperature of object is lower, and the ability absorbing heat is larger, then the cold had is more.
In some embodiments of the invention, control module comprises: detecting unit and performance element.
Particularly, detecting unit for detecting the temperature of electronic control module 10, and sends temperature value; Performance element is connected with semiconductor cooler 20 with detecting unit, for receiving temperature value, and regulates the supply current of semiconductor cooler 20 according to temperature value.
In the above-described embodiments, control module comprises detecting unit and performance element, detecting unit accurately detects the temperature of electronic control module 10, as regulation and control foundation, performance element is according to the supply current of regulation and control according to corresponding adjustment semiconductor cooler 20, the cold that semiconductor cooler 20 is exported and the actual needs of electronic control module 10 match, thus the temperature of electronic control module 10 are maintained in default temperature range, realize thermostatically controlled object.Particularly, detecting unit can be temperature sensor, infrared sensor equitemperature checkout gear.
In some embodiments of the invention; the controller for heat sink of electronic control module also comprises: high temperature protection module (not shown); for detecting the temperature of electronic control module 10 in real time; and when the temperature of electronic control module 10 meets or exceeds set temperature value, send shutdown command to air-conditioner.
In the above-described embodiments; when temperature due to electronic control module 10 is too high; electric control element may be burned soon, therefore by arranging high temperature protection module, monitors in real time the temperature of electronic control module 10; under any circumstance; as long as the temperature of electronic control module 10 meets or exceeds set temperature value, send shutdown command to air-conditioner at once, air-conditioner is directly shut down protection; to avoid electric control element to be burned, thus effective superheat protecting function is served to air-conditioner.
In some embodiments of the invention, as shown in Figure 1, cold junction 21 and electronic control module 10 fit.
In the above-described embodiments, make the cold junction 21 of semiconductor cooler 20 directly and electronic control module 10 fit, the cold that then cold junction 21 exports can be directly passed to electronic control module 10, avoid the loss in cold quantity transmission process, thus improve the utilization rate of cold, improve the radiating rate of electronic control module 10.
Certainly; those skilled in the art is to be understood that; the cold junction 21 of semiconductor cooler 20 also can not fit with electronic control module 10; namely arrange between cold junction 21 and electronic control module 10 and there is certain distance; by blower fan 30 or other devices, cold is blowed to electronic control module 10; or the modes such as cold quantity transmission passage are set between cold junction 21 and electronic control module 10 cold is delivered to electronic control module 10; will not enumerate at this; all can realize the object accelerating electronic control module 10 cooling; therefore, these technical schemes are also in protection scope of the present invention.
As for the particular location of cold junction 21, generally be fitted in the region of electric control element dense distribution, the temperature of this region electronic control module 10 is higher, need to improve radiating rate, and electric control element distribution is less or do not have the place of electric control element, because temperature is general not high, semiconductor cooler 20 is not therefore needed to carry out auxiliary heat dissipation.
In some embodiments of the invention, as shown in Figure 1, hot junction 22 is provided with fin 23.
In the above-described embodiments, in the hot junction 22 of semiconductor cooler 20, fin 23 is set, fin 23 can accelerate the thermal release speed in hot junction 22, because cold junction 21 and hot junction 22 cooperatively interact, adjusted in concert, thus the cold output speed of cold junction 21 also can improve, thus improves the radiating rate of electronic control module 10 further.
In some embodiments of the invention, as shown in Figure 1, the controller for heat sink of electronic control module also comprises: blower fan 30, is electrically connected with control module, control module controls blower fan 30 and rotates or stop, and on hot junction 22 and/or fin 23 air supply direction that is positioned at blower fan 30 or air draught direction.
In the above-described embodiments, utilize blower fan 30 to accelerate the air flowing in hot junction 22, the radiating rate in hot junction 22 can be improved further, thus improve the radiating rate of electronic control module 10 further; Utilize control module to control rotation or the stopping of blower fan 30, the radiating rate in hot junction 22 can be regulated to a certain extent, concrete adjustment process is determined according to the temperature of electronic control module 10, like this, to control the supply current of semiconductor cooler 20, be auxiliary to control blower fan 30, realized the temperature-constant operation of electronic control module 10 by Comprehensive Control, better effects if, reliability is higher.
The air-conditioner that the embodiment of second aspect present invention provides, as shown in Figure 1, comprise: electronic control module 10 and the controller for heat sink as the electronic control module any one of above-mentioned first aspect embodiment, this controller for heat sink is used for dispelling the heat for electronic control module 10, and the temperature of electronic control module 10 is maintained in preset range.
The air-conditioner that the embodiment of second aspect present invention provides, because being provided with the controller for heat sink of the electronic control module any one of first aspect embodiment, thus can either ensure the safe operation of electronic control module 10, turn avoid energy consumption waste.
In some embodiments of the invention, air-conditioner is transducer air conditioning, and electronic control module 10 is frequency conversion electrical control module.
In the above-described embodiments, compared to air-conditioner with fixed frequency, the heat that the frequency conversion electrical control module of transducer air conditioning produces is more, more easily there is superheating phenomenon, thus the above-mentioned controller for heat sink of frequency conversion electrical control module installation being transducer air conditioning is necessary, significantly can promote the heat-sinking capability of transducer air conditioning, make its operation lasting stability more under worst hot case, and then expand the market competitiveness of transducer air conditioning.
As shown in Figure 2, the control method of the air-conditioner that the embodiment of third aspect present invention provides, for controlling the air-conditioner any one of above-mentioned first aspect embodiment, comprising:
S10, controls semiconductor cooler 20 and runs the first preset duration with pre-set current value after start;
S20, detects the temperature of electronic control module 10, obtains temperature value;
S30, regulates the supply current of semiconductor cooler 20, to regulate the temperature of electronic control module 10 according to temperature value;
S40, interval second preset duration, returns and performs S20.
The control method of the air-conditioner that the embodiment of third aspect present invention provides, can ensure electronic control module 10 safe operation in the temperature range preset, thus energy consumption is little, and reliability is high.Particularly, due in the process of start, the workload of electronic control module 10 is larger, easily rise to higher temperature in the short period of time, therefore semiconductor cooler 20 is first allowed to run a period of time with pre-set current value after start, pre-set current value is relatively large current value, to ensure that semiconductor cooler 20 efficiently can export cold, thus avoids electronic control module 10 temperature in start process to rise to too high; And in the process of air-conditioner even running, then according to the observed temperature of electronic control module 10, specifically regulate the supply current of semiconductor cooler 20, or increase, or reduce, or remain unchanged, with the cold regulating semiconductor cooler 20 to export, the actual needs of itself and electronic control module 10 is matched, and then regulate the radiating rate of electronic control module 10, make the temperature of electronic control module 10 maintain in default safe temperature range, so both ensure that the safe operation of electronic control module 10, turn avoid the waste of the energy; And in the process of even running, certain interval of time carries out one-time detection and regulation and control, the energy consumption waste detected and regulation and control too frequently cause can be avoided.
In some embodiments of the invention, as shown in Figure 2, step S30 specifically comprises:
S302, judges whether temperature value is less than the first preset temperature, when temperature value is not less than the first preset temperature, performs step S304, when temperature value is less than the first preset temperature, performs step S306;
S304, the supply current controlling semiconductor cooler 20 is pre-set current value;
S306, judges whether temperature value is less than the second preset temperature, when temperature value is not less than the second preset temperature, performs step S308, when temperature value is less than the second preset temperature, performs step S310;
S308, the supply current controlling semiconductor cooler 20 remains unchanged;
S310, the supply current controlling semiconductor cooler 20 reduces setting value;
Wherein, the first preset temperature is greater than the second preset temperature.
In the above-described embodiments, the first preset temperature is the higher limit of electronic control module 10 safe operation, and the second preset temperature is the lower limit of electronic control module 10 safe operation.Due to electronic control module 10 be in higher temperature time, exist and burn out the danger of electric control element, consequence is comparatively serious, and when being in lower temperature, then the problem of just energy consumption waste, can not have influence on the normal operation of air-conditioner, affect relatively little; Therefore first judge whether the temperature of electronic control module 10 is less than the first preset temperature, in other words, whether higher than safe range, judge whether electronic control module 10 is in high risk state, to make corresponding control in time, ensure the normal operation of air-conditioner; Ensureing under the prerequisite that air-conditioner normally runs, then judging whether observed temperature is less than the second preset temperature, in other words, whether lower than safe range, then making corresponding control, to avoid the waste of energy consumption; Like this, control procedure is made a distinction between the important and the lesser one, rationally reliably.
As for concrete adjustment process, when the temperature value of electronic control module 10 is too high, during beyond preset range, semiconductor cooler 20 is needed to run with larger supply current, be specially pre-set current value, certainly be not limited to pre-set current value, to improve the radiating rate of electronic control module 10, make its temperature be reduced to preset range gradually; If the temperature value of electronic control module 10 is in preset range, namely the radiating rate of electronic control module 10 is suitable, and thus the supply current of semiconductor cooler 20 remains unchanged; If the temperature value of electronic control module 10 is lower than preset range, then need the supply current reducing electronic control module 10, be specifically as follows fixing setting value, be certainly not limited to the setting value that this is fixing, suitably to reduce the radiating rate of electronic control module 10, its temperature is gone up gradually in preset range.
In some embodiments of the invention, as shown in Figure 2, the control method of air-conditioner also comprises:
S50, detects the temperature of electronic control module 10 in real time after start, and when the temperature of electronic control module 10 meets or exceeds the 3rd preset temperature, controls air-conditioner shutdown;
Further, described step S50 specifically comprises:
S502, detects the temperature of electronic control module 10 in real time;
S504, judges whether the temperature of electronic control module 10 is less than the 3rd preset temperature, when the temperature of electronic control module 10 is not less than the 3rd preset temperature, performs step S506, when the temperature of electronic control module 10 is less than the 3rd preset temperature, returns and performs step S502;
S506, controls air-conditioner shutdown;
Wherein, the 3rd preset temperature is greater than the first preset temperature;
In the above-described embodiments, the 3rd preset temperature is the higher limit that electronic control module 10 can be run, and when the temperature of electronic control module 10 is increased to this temperature, the possibility that electric control element burns out is larger.Therefore the setting of high temperature protection step; make air-conditioner when the temperature of electronic control module 10 is increased to this temperature; can directly shut down to protect electronic control module 10; the situation avoiding electric control element to burn out occurs; thus further ensure the safe operation of electronic control module 10, further increase the security of air-conditioner.
In some embodiments of the invention, pre-set current value is the maximum supply current of semiconductor cooler 20, when semiconductor cooler 20 runs with maximum supply current, the temperature of electronic control module 10 can be made to be reduced to below the first preset temperature.
In the above-described embodiments, pre-set current value is set to the maximum supply current of semiconductor cooler 20, then semiconductor cooler 20 is in the process of starting shooting and when electronic control module 10 is in high temperature risk status, all farthest can carry cold, to ensure that electronic control module 10 is lowered the temperature with the fastest speed, the possibility burnt out by electric control element drops to minimum, thus ensure that the safe operation of electronic control module 10; Certainly, the model of semiconductor cooler 20 and maximum supply current should be suitable with electronic control module 10, during can ensure that air-conditioner runs under worst operating mode, the temperature of electronic control module 10 also can be reduced to the first preset temperature by semiconductor cooler 20, below the higher limit of i.e. safe temperature, putting before this, the temperature of electronic control module 10 could control in safe temperature range by semiconductor cooler 20, to ensure its functional reliability.
In one particular embodiment of the present invention, air-conditioner is transducer air conditioning, and electronic control module is frequency conversion electrical control module, and the first preset temperature is 80 DEG C, and the second preset temperature is 77 DEG C, and the 3rd preset temperature is 85 DEG C.First preset duration is 3min, and the second preset duration is 20s, and setting value is Imax/20, and wherein, Imax is the maximum supply current of semiconductor cooler 20.
Experience shows, the temperature of frequency conversion electrical control module is at [77 DEG C, 80 DEG C) between time, get final product safe operation, therefore arrange [77 DEG C, 80 DEG C) be default safe temperature range, and temperature is when reaching 85 DEG C even higher, the risk that electric control element burns out is comparatively large, therefore the 3rd preset temperature is set to 85 DEG C, to ensure that electric control element can not burn out.
Certainly; those skilled in the art is to be understood that; different transducer air conditionings, the composition of its frequency conversion electrical control module is different, and material also may be different; therefore also difference is existed to the ability to bear of temperature; therefore, the first preset temperature, the second preset temperature and the 3rd preset temperature are not limited to above-mentioned numerical value, can be other numerical value; but these technical schemes all do not depart from design philosophy of the present invention and aim, therefore also in protection scope of the present invention.
Through a large amount of tests, when first preset duration is set to 3min, namely when semiconductor cooler 20 runs 3min with larger pre-set current value after receiving starting-up signal, effectively can ensure that frequency conversion electrical control module is started shooting in the process of operation under various operating mode, temperature can not reach 80 DEG C, thus effectively ensure that the safe operation of frequency conversion electrical control module in start process; When second preset duration is set to 20s, namely in the process of transducer air conditioning even running, interval 20s does one-time detection and adjustment, can ensure that the temperature of frequency conversion electrical control module fluctuates in preset range, or fluctuate in the edge of preset range, and can not rise too high or fall too low, so slightly adjust and can get back in preset range, avoid simultaneously and detect and the too frequent and energy consumption waste that causes of regulation and control.
But; those skilled in the art is to be understood that; the factors such as the temperature of the radiating rate of frequency conversion electrical control module and the model of semiconductor cooler 20, supply current, external environment are all relevant; therefore; first preset duration and the second preset duration are not limited to 3min and 20s; should specifically arrange as the case may be, but these technical schemes do not depart from design philosophy of the present invention and aim, thus in protection scope of the present invention yet.
Proved by test of many times, when setting value is set to Imax/20, the temperature of frequency conversion electrical control module can be made to go up in preset temperature range gradually, and the supply current of semiconductor cooler 20 can be reduced to 0, namely, when the temperature of frequency conversion electrical control module is too low, semiconductor cooler 20 can be made to quit work.
Certainly; those skilled in the art is to be understood that; this is also relevant with factors such as the temperature of the model of semiconductor cooler 20, supply current, external environment; therefore; setting value is also not limited to Imax/20; should specifically arrange as the case may be, but these technical schemes do not depart from design philosophy of the present invention and aim yet, therefore in protection scope of the present invention yet.
In sum, the controller for heat sink of electronic control module provided by the invention, utilizes the heat-electrical effect of semiconductor cooler to provide cold for electronic control module, and make electronic control module accelerate heat radiation, good heat dissipation effect, reliability is high, and friction; And control module can regulate the supply current of semiconductor cooler according to the temperature of electronic control module, and then the cold regulating semiconductor cooler to export, the radiating rate of electronic control module is controlled, so that the temperature of electronic control module is maintained in default safe temperature range, and can not fall too low, thus avoid electronic control module lowered the temperature the energy dissipation excessively caused.
In the present invention, term " first ", " second " object only for describing, and instruction or hint relative importance can not be interpreted as; Term " multiple " then refers to two or more, unless otherwise clear and definite restriction.The term such as term " installation ", " being connected ", " connection ", " fixing " all should be interpreted broadly, and such as, " connection " can be fixedly connected with, and also can be removably connect, or connects integratedly; " being connected " can be directly be connected, and also indirectly can be connected by intermediary.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the description of this description, specific features, structure, material or feature that the description of term " embodiment ", " some embodiments ", " specific embodiment " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
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 controller for heat sink for electronic control module, is arranged on air-conditioner, it is characterized in that, comprising:
Semiconductor cooler, comprises cold junction and hot junction, and described cold junction is used for for described electronic control module heat radiation, and described hot junction is used for release heat; With
Control module, is electrically connected with described semiconductor cooler, for obtaining the temperature value of described electronic control module, and regulates the supply current of described semiconductor cooler according to described temperature value, maintains in preset range to make the temperature of described electronic control module.
2. the controller for heat sink of electronic control module according to claim 1, is characterized in that,
Described control module comprises:
Detecting unit, for detecting the temperature of described electronic control module, and sends temperature value; With
Performance element, is connected with described semiconductor cooler with described detecting unit, for receiving described temperature value, and regulates the supply current of described semiconductor cooler according to described temperature value.
3. the controller for heat sink of electronic control module according to claim 1, is characterized in that, also comprises:
High temperature protection module, for detecting the temperature of described electronic control module in real time, and when the temperature of described electronic control module meets or exceeds set temperature value, sends shutdown command to described air-conditioner.
4. the controller for heat sink of electronic control module according to any one of claim 1 to 3, is characterized in that,
Described cold junction and described electronic control module fit.
5. the controller for heat sink of electronic control module according to claim 4, is characterized in that,
Described hot junction is provided with fin.
6. the controller for heat sink of electronic control module according to claim 5, is characterized in that, also comprises:
Blower fan, is electrically connected with described control module, and described control module controls described blower fan and rotates or stop, and on described hot junction and/or the described fin air supply direction that is positioned at described blower fan or air draught direction.
7. an air-conditioner, is characterized in that, comprising:
Electronic control module; With
The controller for heat sink of the electronic control module according to any one of the claims 1 to 6, for being the heat radiation of described electronic control module, and makes the temperature of described electronic control module maintain in preset range.
8. a control method for air-conditioner, as above-mentioned air-conditioner according to claim 7 for controlling, is characterized in that, comprising:
Start step: control semiconductor cooler after start and run the first preset duration with pre-set current value;
Detecting step: the temperature detecting electronic control module, obtains temperature value;
Regulation and control step: the supply current regulating described semiconductor cooler according to described temperature value, to regulate the temperature of described electronic control module;
Recheck step: interval second preset duration, returns execution detecting step.
9. the control method of air-conditioner according to claim 8, is characterized in that,
Described regulation and control step specifically comprises:
Judge whether described temperature value is less than the first preset temperature, when described temperature value is not less than described first preset temperature, the supply current controlling described semiconductor cooler is described pre-set current value;
When described temperature value is less than described first preset temperature, judge whether described temperature value is less than the second preset temperature, when described temperature value is not less than described second preset temperature, the supply current controlling described semiconductor cooler remains unchanged;
When described temperature value is less than described second preset temperature, the supply current controlling described semiconductor cooler reduces setting value;
Wherein, described first preset temperature is greater than described second preset temperature.
10. the control method of air-conditioner according to claim 9, is characterized in that, also comprises:
High temperature protection step: the temperature detecting described electronic control module after start in real time, and when the temperature of described electronic control module meets or exceeds the 3rd preset temperature, control the shutdown of described air-conditioner;
Wherein, described 3rd preset temperature is greater than described first preset temperature.
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| CN113865054A (en) * | 2021-10-09 | 2021-12-31 | 广东美的制冷设备有限公司 | Heat dissipation control method and device of air conditioner and air conditioner |
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