CN109639125A - Control method, device and system for monitoring intelligent power module - Google Patents
Control method, device and system for monitoring intelligent power module Download PDFInfo
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- CN109639125A CN109639125A CN201811418940.7A CN201811418940A CN109639125A CN 109639125 A CN109639125 A CN 109639125A CN 201811418940 A CN201811418940 A CN 201811418940A CN 109639125 A CN109639125 A CN 109639125A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000012544 monitoring process Methods 0.000 title claims abstract description 30
- 238000003825 pressing Methods 0.000 claims abstract description 15
- 230000017525 heat dissipation Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 8
- 230000006870 function Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- KLDZYURQCUYZBL-UHFFFAOYSA-N 2-[3-[(2-hydroxyphenyl)methylideneamino]propyliminomethyl]phenol Chemical compound OC1=CC=CC=C1C=NCCCN=CC1=CC=CC=C1O KLDZYURQCUYZBL-UHFFFAOYSA-N 0.000 description 1
- 201000001098 delayed sleep phase syndrome Diseases 0.000 description 1
- 208000033921 delayed sleep phase type circadian rhythm sleep disease Diseases 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/327—Means for protecting converters other than automatic disconnection against abnormal temperatures
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Power Conversion In General (AREA)
- Inverter Devices (AREA)
Abstract
The embodiment of the invention relates to the technical field of intelligent household appliances, in particular to a control method, a device and a system for monitoring an intelligent power module, which comprises the following steps: when a pressing signal exists, collecting a plurality of stress values and temperature values; comparing the temperature value with a first preset threshold value; judging whether the temperature value is greater than a first preset threshold value or not; if the temperature value is not greater than the first preset threshold value, comparing the stress values with a second preset threshold value, wherein the second preset threshold value comprises a preset stress threshold value and an effective contact area threshold value; judging whether the stress values meet a preset stress threshold and an effective contact area threshold or not; if the stress values meet the preset stress threshold value and the effective contact area threshold value, the flatness of the intelligent power module meets the preset condition, the temperature and flatness information of the intelligent power module can be acquired in real time, and the intelligent power module is ensured to run safely and reliably under the expected heat dissipation effect.
Description
Technical field
The present embodiments relate to intelligent appliance technical fields, and in particular to a kind of controlling party for monitoring intelligent power module
Method, device and system.
Background technique
Continuous with converter technique is popularized, and the related application of intelligent power module is more and more.In use, intelligence
Energy power module can generate a large amount of heat.Biggish radiator can generally be installed additional in intelligent power module and carry out auxiliary heat dissipation, but
It is that if the surface irregularity of intelligent power module and radiator, and the temperature of intelligent power module cannot be carried out
Monitoring, cannot guarantee that the safety of intelligent power module while influencing heat dissipation effect.
Summary of the invention
In order to solve the above-mentioned technical problem or it at least is partially solved above-mentioned technical problem, the embodiment of the invention provides
A kind of control method, device and system monitoring intelligent power module can obtain the temperature peace of intelligent power module in real time
Whole degree information, it is ensured that intelligent power module is safe and reliable under expected heat dissipation effect.
In a first aspect, the embodiment of the invention provides a kind of control method for monitoring intelligent power module, the method packet
It includes:
When there is pressing signal, multiple stress values and temperature value are acquired；
The temperature value is compared with the first preset threshold；
Judge whether the temperature value is greater than first preset threshold；
If the temperature value is not more than first preset threshold, by the multiple stress value and the second preset threshold
It is compared, second preset threshold includes default stress threshold and effective contact area threshold value；
Judge whether the multiple stress value meets the default stress threshold and effective contact area threshold value；
If the multiple stress value meets the default stress threshold and effective contact area threshold value, the intelligence
The flatness of energy power module meets preset condition.
Further, judge whether the temperature value is greater than first preset threshold, comprising:
If the temperature value is greater than first preset threshold, the intelligent power module is protected.
Further, described to judge whether the multiple stress value meets the default stress threshold and effective contact
Area threshold, comprising:
It is described if the multiple stress value does not meet the default stress threshold and effective contact area threshold value
The flatness of intelligent power module is unsatisfactory for the preset condition.
Further, if the multiple stress value meets the default stress threshold and effective contact area
Threshold value, then the flatness of the intelligent power module meets preset condition, comprising:
The multiple stress value is compared with the default stress threshold respectively；
Judge the multiple stress value whether in the default stress threshold；
If the stress value in the default stress threshold, counts the stress value in the default stress threshold
Quantity, obtain the first quantity；
First quantity is compared with effective contact area threshold value；
Judge whether first quantity reaches effective contact area；
If first quantity reaches effective contact area, the flatness of the intelligent power module meets institute
State preset condition.
Second aspect, the embodiment of the invention provides a kind of control device for monitoring intelligent power module, described device packets
It includes: multiple stress acquisition units, temperature collecting cell and controller；
The multiple stress acquisition unit, the temperature collecting cell are connected with the controller respectively；
It is the multiple to apply acquisition unit, for acquiring multiple stress values when there is pressing signal；
The temperature collecting cell is used for collecting temperature value；
The controller, for the temperature value to be compared with the first preset threshold；Whether judge the temperature value
Greater than first preset threshold；If the temperature value is not more than first preset threshold, by the multiple stress value
It is compared with the second preset threshold, second preset threshold includes default stress threshold and effective contact area threshold value；Sentence
Whether the multiple stress value that breaks meets the default stress threshold and effective contact area threshold value；If the multiple answer
Force value meets the default stress threshold and effective contact area threshold value, then the flatness of the intelligent power module meets
Preset condition.
Further, the controller includes:
If the temperature value is greater than first preset threshold, the intelligent power module is protected.
Further, the controller includes:
It is described if the multiple stress value does not meet the default stress threshold and effective contact area threshold value
The flatness of intelligent power module is unsatisfactory for the preset condition.
Further, the controller includes:
The multiple stress value is compared with the default stress threshold respectively；
Judge the multiple stress value whether in the default stress threshold；
If the stress value in the default stress threshold, counts the stress value in the default stress threshold
Quantity, obtain the first quantity；
First quantity is compared with effective contact area threshold value；
Judge whether first quantity reaches effective contact area；
If first quantity reaches effective contact area, the flatness of the intelligent power module meets institute
State preset condition.
The third aspect, it is including as described above the embodiment of the invention provides the control system of monitoring intelligent power module
Device further includes intelligent power module and radiator, and the intelligent power module is arranged on the radiator, the radiator
Surface be disposed with multiple stress acquisition units and temperature collecting cell in described device.
The embodiment of the invention provides a kind of control method, device and system for monitoring intelligent power module, comprising: when depositing
When pressing signal, multiple stress values and temperature value are acquired；Temperature value is compared with the first preset threshold；Judge temperature value
Whether the first preset threshold is greater than；If temperature value is not more than the first preset threshold, by multiple stress values and the second default threshold
Value is compared, and the second preset threshold includes default stress threshold and effective contact area threshold value；Whether judge multiple stress values
Meet default stress threshold and effective contact area threshold value；If multiple stress values meet default stress threshold and effective contact surface
Product threshold value, then the flatness of intelligent power module meets preset condition, can obtain the temperature peace of intelligent power module in real time
Whole degree information, it is ensured that intelligent power module is safe and reliable under expected heat dissipation effect.
Detailed description of the invention
Fig. 1 is a kind of control method flow chart for monitoring intelligent power module that the embodiment of the present invention one provides；
Fig. 2 is the stream of step S107 in a kind of control method for monitoring intelligent power module that the embodiment of the present invention one provides
Cheng Tu；
Fig. 3 is a kind of control device schematic diagram for monitoring intelligent power module provided by Embodiment 2 of the present invention；
Fig. 4 is a kind of control system schematic diagram for monitoring intelligent power module that the embodiment of the present invention three provides；
Fig. 5 is a kind of partial top view of the control system for monitoring intelligent power module that the embodiment of the present invention three provides.
Icon:
10- stress acquisition unit；20- temperature collecting cell；30- controller；40- intelligent power module；50- radiator.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment one:
Fig. 1 is a kind of control method flow chart for monitoring intelligent power module that the embodiment of the present invention one provides.
Referring to Fig.1, method includes the following steps:
Step S101 acquires multiple stress values and temperature value when there is pressing signal；
Here, on a heat sink, multiple phases are made using stress sensitive material in spreader surface for intelligent power module setting
Same stress acquisition unit, stress acquisition unit are formed according to certain spacing arrangement.Each stress acquisition unit is by intelligence
The extruding of power module or radiator detection faces, it may occur that miniature deformation generates pressing signal thus according to miniature deformation.?
After generating pressing signal, multiple stress values are acquired.Meanwhile the temperature collecting cell of spreader surface setting can also generate pressing
After signal, collecting temperature value.
In the present embodiment, before acquisition stress value and temperature value, coordinate system is established, first with the lower-left of spreader surface
Angular vertex is origin, using the quantity of stress acquisition unit and the quantity of temperature collecting cell as X-coordinate, by stress acquisition unit
Quantity and temperature collecting cell quantity as Y-coordinate, the stress value and temperature collecting cell of stress acquisition unit acquisition are adopted
The temperature value of collection is as Z coordinate, to establish coordinate system.By the foundation of coordinate system, output display stress acquisition unit and temperature
The data of acquisition unit acquisition are spent, to check to the problem of not up to default heat dissipation effect.
Temperature value is compared by step S102 with the first preset threshold；
Step S103, judges whether temperature value is greater than the first preset threshold；If temperature value is not more than the first preset threshold,
Then follow the steps S104；If temperature value is greater than the first preset threshold, S105 is thened follow the steps；
Multiple stress values are compared by step S104 with the second preset threshold, and the second preset threshold includes default stress
Threshold value and effective contact area threshold value；
Step S105, protects intelligent power module；
Step S106, judges whether multiple stress values meet default stress threshold and effective contact area threshold value；If more
A stress value meets default stress threshold and effective contact area threshold value, thens follow the steps S107；If multiple stress values are not inconsistent
Default stress threshold and effective contact area threshold value are closed, S108 is thened follow the steps；
Here, the second preset threshold includes two parts, and first part is default stress threshold, and second part is effectively contact
Area threshold, wherein default stress threshold is set at conplane threshold value.If the stress value of acquisition is in default stress threshold
In value, then it is assumed that in same plane.In identified sign value after the quantity in default stress threshold, then by the first quantity and effectively
Contact area threshold value is compared, and determines whether the flatness of intelligent power module meets preset condition according to comparison result, such as
Fruit meets preset condition, then can ensure that intelligent power module is safe and reliable under preset heat dissipation effect.
The flatness of step S107, intelligent power module meet preset condition.
The flatness of step S108, intelligent power module are unsatisfactory for preset condition.
Further, referring to Fig. 2, step S107 the following steps are included:
Multiple stress values are compared with default stress threshold by step S201 respectively；
Whether step S202 judges multiple stress values in default stress threshold；If stress value is in default stress threshold
It is interior, then follow the steps S203；If stress value in default stress threshold, does not then follow the steps S204；
Step S203 counts the quantity of the stress value in default stress threshold, obtains the first quantity；
The flatness of step S204, intelligent power module are unsatisfactory for preset condition；
First quantity is compared by step S205 with effective contact area threshold value；
Step S206, judges whether the first quantity reaches effective contact area；If the first quantity reaches effective contact surface
Product, thens follow the steps S207；If the first quantity does not reach effective contact area, S204 is thened follow the steps；
The flatness of step S207, intelligent power module meet preset condition.
The embodiment of the invention provides a kind of control methods for monitoring intelligent power module, comprising: presses signal when existing
When, acquire multiple stress values and temperature value；Temperature value is compared with the first preset threshold；Judge whether temperature value is greater than
One preset threshold；If temperature value is not more than the first preset threshold, multiple stress values are compared with the second preset threshold,
Second preset threshold includes default stress threshold and effective contact area threshold value；Judge whether multiple stress values meet default stress
Threshold value and effective contact area threshold value；If multiple stress values meet default stress threshold and effective contact area threshold value, intelligence
The flatness of energy power module meets preset condition, can obtain the temperature and flatness information of intelligent power module in real time, really
It is safe and reliable under expected heat dissipation effect to protect intelligent power module.
Embodiment two:
Fig. 3 is a kind of control device schematic diagram for monitoring intelligent power module provided by Embodiment 2 of the present invention.
Referring to Fig. 3, which includes: multiple stress acquisition units 10, temperature collecting cell 20 and controller 30；
Multiple stress acquisition units 10, temperature collecting cell 20 are connected with controller 30 respectively；
Multiple application acquisition units 10, for acquiring multiple stress values when there is pressing signal；
Temperature collecting cell 20 is used for collecting temperature value；
Controller 30, for temperature value to be compared with the first preset threshold；It is pre- to judge whether temperature value is greater than first
If threshold value；If temperature value is not more than the first preset threshold, multiple stress values are compared with the second preset threshold, second
Preset threshold includes default stress threshold and effective contact area threshold value；Judge whether multiple stress values meet default stress threshold
With effective contact area threshold value；If multiple stress values meet default stress threshold and effective contact area threshold value, intelligent function
The flatness of rate module meets preset condition.
Further, controller 30 includes:
If temperature value is greater than the first preset threshold, intelligent power module is protected.
Further, controller 30 includes:
If multiple stress values do not meet default stress threshold and effective contact area threshold value, intelligent power module is put down
Whole degree is unsatisfactory for preset condition.
Further, controller 30 includes:
Multiple stress values are compared with default stress threshold respectively；
Judge multiple stress values whether in default stress threshold；
If stress value in default stress threshold, counts the quantity of the stress value in default stress threshold, obtains
First quantity；
First quantity is compared with effective contact area threshold value；
Judge whether the first quantity reaches effective contact area；
If the first quantity reaches effective contact area, the flatness of intelligent power module meets preset condition.
The embodiment of the invention provides a kind of control devices for monitoring intelligent power module, comprising: stress acquisition unit is used
In when there is pressing signal, multiple stress values are acquired；Temperature collecting cell is used for collecting temperature value；Controller is used for temperature
Value is compared with the first preset threshold；Judge whether temperature value is greater than the first preset threshold；If temperature value is not more than first
Multiple stress values are then compared by preset threshold with the second preset threshold, the second preset threshold include default stress threshold and
Effective contact area threshold value；Judge whether multiple stress values meet default stress threshold and effective contact area threshold value；If more
A stress value meets default stress threshold and effective contact area threshold value, then the flatness of intelligent power module meets default item
Part can obtain the temperature and flatness information of intelligent power module, it is ensured that intelligent power module is imitated in expected heat dissipation in real time
It is safe and reliable under fruit.
Embodiment three:
Fig. 4 and Fig. 5 is a kind of control system schematic diagram for monitoring intelligent power module that the embodiment of the present invention three provides.
Referring to Fig. 4 and Fig. 5, it further includes intelligent power module which, which includes the control device for monitoring intelligent power module,
40 and radiator 50, intelligent power module 40 is arranged on radiator 50, and the surface of radiator 50 is disposed in device
Multiple stress acquisition units 10 and temperature collecting cell 20.
The contact surface of intelligent power module 40 and radiator 50 can to stress acquisition unit 10 and temperature collecting cell 20 into
Row pressing generates pressing signal.
It further include controller 30, controller 30 is connected with stress acquisition unit 10 and temperature collecting cell 20 respectively,
After generating pressing signal, the temperature value that the stress value and temperature collecting cell 20 that stress acquisition unit 10 acquires acquire is sent to
Controller 30, so that controller 30 handles stress value and temperature value, it is ensured that 40 pieces of intelligent power mould in expected heat dissipation
It is safely and reliably run under effect.
It should be noted that, in this document, the relational terms of such as " first " and " second " or the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.
It is understood that embodiments described herein can with hardware, software, firmware, middleware, microcode or its
Combination is to realize.For hardware realization, processing unit be may be implemented in one or more specific integrated circuit (Application
Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing,
DSP), digital signal processing appts (DSP Device, DSPD), programmable logic device (Programmable Logic
Device, PLD), field programmable gate array (Field-Programmable Gate Array, FPGA), general processor,
In controller, microcontroller, microprocessor, other electronic units for executing herein described function or combinations thereof.
For software implementations, the techniques described herein can be realized by executing the unit of function described herein.Software generation
Code is storable in memory and is executed by processor.Memory can in the processor or portion realizes outside the processor.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
In embodiment provided herein, it should be understood that disclosed device and method can pass through others
Mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of device or unit
It connects, can be electrical property, mechanical or other forms.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the embodiment of the present invention is substantially
The part of the part that contributes to existing technology or the technical solution can embody in the form of software products in other words
Come, which is stored in a storage medium, including some instructions are used so that a computer equipment (can
To be personal computer, server or the network equipment etc.) execute all or part of each embodiment the method for the present invention
Step.And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, ROM, RAM, magnetic or disk etc. are various can store program
The medium of code.
It should be noted that the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that the process, method, article or equipment for including a series of elements not only includes those elements, but also including
Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (9)
1. a kind of control method for monitoring intelligent power module, which is characterized in that the described method includes:
When there is pressing signal, multiple stress values and temperature value are acquired；
The temperature value is compared with the first preset threshold；
Judge whether the temperature value is greater than first preset threshold；
If the temperature value is not more than first preset threshold, the multiple stress value and the second preset threshold are carried out
Compare, second preset threshold includes default stress threshold and effective contact area threshold value；
Judge whether the multiple stress value meets the default stress threshold and effective contact area threshold value；
If the multiple stress value meets the default stress threshold and effective contact area threshold value, the intelligence function
The flatness of rate module meets preset condition.
2. the control method of monitoring intelligent power module according to claim 1, which is characterized in that judge the temperature value
Whether first preset threshold is greater than, comprising:
If the temperature value is greater than first preset threshold, the intelligent power module is protected.
3. the control method of monitoring intelligent power module according to claim 1, which is characterized in that the judgement is described more
Whether a stress value meets the default stress threshold and effective contact area threshold value, comprising:
If the multiple stress value does not meet the default stress threshold and effective contact area threshold value, the intelligence
The flatness of power module is unsatisfactory for the preset condition.
4. the control method of monitoring intelligent power module according to claim 3, which is characterized in that if described more
A stress value meets the default stress threshold and effective contact area threshold value, then the flatness of the intelligent power module
Meet preset condition, comprising:
The multiple stress value is compared with the default stress threshold respectively；
Judge the multiple stress value whether in the default stress threshold；
If the stress value in the default stress threshold, counts the number of the stress value in the default stress threshold
Amount, obtains the first quantity；
First quantity is compared with effective contact area threshold value；
Judge whether first quantity reaches effective contact area；
If first quantity reaches effective contact area, the flatness of the intelligent power module meets described pre-
If condition.
5. a kind of control device for monitoring intelligent power module, which is characterized in that described device includes: that multiple stress acquisitions are single
Member, temperature collecting cell and controller；
The multiple stress acquisition unit, the temperature collecting cell are connected with the controller respectively；
It is the multiple to apply acquisition unit, for acquiring multiple stress values when there is pressing signal；
The temperature collecting cell is used for collecting temperature value；
The controller, for the temperature value to be compared with the first preset threshold；Judge whether the temperature value is greater than
First preset threshold；If the temperature value is not more than first preset threshold, by the multiple stress value and the
Two preset thresholds are compared, and second preset threshold includes default stress threshold and effective contact area threshold value；Judge institute
State whether multiple stress values meet the default stress threshold and effective contact area threshold value；If the multiple stress value
Meet the default stress threshold and effective contact area threshold value, then the flatness of the intelligent power module meets default
Condition.
6. the control device of monitoring intelligent power module according to claim 5, which is characterized in that the controller packet
It includes:
If the temperature value is greater than first preset threshold, the intelligent power module is protected.
7. the control device of monitoring intelligent power module according to claim 5, which is characterized in that the controller packet
It includes:
If the multiple stress value does not meet the default stress threshold and effective contact area threshold value, the intelligence
The flatness of power module is unsatisfactory for the preset condition.
8. the control device of monitoring intelligent power module according to claim 7, which is characterized in that the controller packet
It includes:
The multiple stress value is compared with the default stress threshold respectively；
Judge the multiple stress value whether in the default stress threshold；
If the stress value in the default stress threshold, counts the number of the stress value in the default stress threshold
Amount, obtains the first quantity；
First quantity is compared with effective contact area threshold value；
Judge whether first quantity reaches effective contact area；
If first quantity reaches effective contact area, the flatness of the intelligent power module meets described pre-
If condition.
9. a kind of control system for monitoring intelligent power module, which is characterized in that described in any item including claim 5 to 8
Device further includes intelligent power module and radiator, and the intelligent power module is arranged on the radiator, the radiator
Surface be disposed with multiple stress acquisition units and temperature collecting cell in described device.
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| CN207992280U (en) * | 2018-04-16 | 2018-10-19 | 张照亮 | Microhm current sense resistor with stress mornitoring |
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