CN105281547A - Power module with moisture-proof and dehumidifying function, and moisture-proof and dehumidifying method of the same - Google Patents
Power module with moisture-proof and dehumidifying function, and moisture-proof and dehumidifying method of the same Download PDFInfo
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- CN105281547A CN105281547A CN201510785001.6A CN201510785001A CN105281547A CN 105281547 A CN105281547 A CN 105281547A CN 201510785001 A CN201510785001 A CN 201510785001A CN 105281547 A CN105281547 A CN 105281547A
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Abstract
The invention provides a power module with a moisture-proof and dehumidifying function, and a moisture-proof and dehumidifying method of the same. The power module with a moisture-proof and dehumidifying function comprises IGBT, a drive board, three-proofing paint, a radiator, PTC heating resistors, sealant, a temperature control switch and a binding post, wherein the PTC heating resistors are arranged on the mounting surface of the radiator which is used for radiation of the IGBT; the peripheral edge of the juncture between the ceramic base plate of the IGBT and the radiator is coated with the sealant; the temperature control switch is arranged on the radiator; and the binding post is used for supplying power for the PTC heating resistors. The power module with a moisture-proof and dehumidifying function, and the moisture-proof and dehumidifying method of the same have the advantages that through mutual coordination of the PTC heating resistors, the sealant, the temperature control switch and the three-proofing paint, the moisture-proof and dehumidifying function is completed so that the power module is moisture-proof and reliable, and can dehumidify thoroughly and can effectively process the condensation problem. The power module with a moisture-proof and dehumidifying function, and the moisture-proof and dehumidifying method of the same can solve the problems that in the high humidity environment, a traditional power module stops working for a long time or the device is damaged because of condensation of moisture during the storage process, and can realize the quick dehumidification function of the power module.
Description
Technical field
The invention belongs to wind power generation field, especially relate to a kind of power model and the Moistureproof dehumidification method thereof that possess Moistureproof dehumidification function.
Background technology
In wind power generation field, because products application their location high humidity weather is general, extreme regional relative air humidity 95%-100%, therefore power model internal operation and storage environment very severe.In prior art, substantially be all carry out protection against the tide by the degree of protection of reinforcement power model place cabinet, because the ventilation and heat of air-cooled power model needs, hermetic cabinet can not have been made, outside highly humid air will inevitably pass through fresh air inlet ingoing power inside modules, causes power model Primary Component to make moist.Dehumanization method common is at present dehumidified to devices such as power model IGBT by blowing heater and mechanical draft method, but there is following shortcoming in the method: one is that effect on moisture extraction is not good, moisture has entered IGBT inside, form condensate, from outside blowing heating and dehumidification, can not effectively IGBT inside chip condensate be discharged; Two is that the temperature rise of blowing heater is not high, and the heating and dehumidification time is very long, and industry common demands heats more than 5 hours; Three is mechanical draft is only improve condensate evaporation rate by increasing air velocity, and does not have heat to input, and effect on moisture extraction is not good, and the optimum level of dehumidifying namely maintains the humidity the same with humid air, thoroughly can not solve the problem of making moist.
In order to efficient, the reliability of the moisture-proof function and dehumidification function that realize power model, need to study from the wetting mechanism of the Primary Component such as IGBT, drive plate and dehumanization method aspect, therefore design one can moisture effect better, dehumidification function more efficiently, more reliably, more thoroughly power model be a problem demanding prompt solution.
Summary of the invention
In view of this, the present invention is intended to propose a kind of power model and Moistureproof dehumidification method thereof possessing Moistureproof dehumidification function efficiently, reliably, thoroughly, protects power model with this.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of power model possessing Moistureproof dehumidification function, comprise IGBT, radiator, drive plate, PTC heating resistor, fluid sealant, temperature detect switch (TDS), three anti-paint and binding posts, in the centre position of described radiator, described IGBT is installed, described fluid sealant is coated in ceramic bottom board and the radiator junction of described IGBT, described PTC heating resistor to be arranged on the described radiator for dispelling the heat to IGBT and to be positioned at IGBT both sides, described IGBT is provided with drive plate, described three anti-paints are sprayed on drive plate surface, described temperature detect switch (TDS) is installed on a heat sink and is positioned near described PTC heating resistor, described radiator is provided with panel beating support, described binding post is arranged on described panel beating support, external power source is received on binding post, described binding post is drawn a power line and is connected with one end of described PTC heating resistor, binding post provides independent current source for PTC heating resistor, the other end of described PTC heating resistor is connected with one end of described temperature detect switch (TDS), the described other end from temperature detect switch (TDS) is drawn a power line and is received binding post, formed one complete by binding post, temperature detect switch (TDS), the electric loop of PTC heating resistor composition.
Further, described three anti-paints adopt automatic spraying machine to be sprayed on the positive and negative of drive plate at dust-free workshop, and dry completely, the drive plate after anti-for spraying three paint process is arranged on IGBT, and carries out wiring work.
Further, described PTC heating resistor selects the PTC heating resistor of ptc characteristics.
Further, closed type temperature detect switch (TDS) selected by described temperature detect switch (TDS).
Further, at the installed surface coated with thermally conductive silicone grease of described PTC heating resistor, with screw, PTC heating resistor is installed on radiator.
The dehumanization method of above-mentioned power model is adopted to be:
1) after external control case receives the control signal needing to carry out heating and dehumidification, power supply is delivered on binding post, PTC heating resistor adds heat radiator, PTC heating resistor improves radiator temperature gradually, by radiator heat conduction pattern, heat is transmitted to IGBT ceramic bottom board and drive plate from radiator, thus IGBT inside chip and drive plate are heated to uniform temperature, dry the condensate of chip and drive plate, realize dehumidification function.
2) when temperature detect switch (TDS) reaches the temperature value of setting, according to design scheme evaluation now IGBT condensate that is inner and drive plate dry completely, reach and meet the state that safety plays machine, now temperature detect switch (TDS) can disconnect the electric loop be made up of binding post, temperature detect switch (TDS), PTC heating resistor automatically, realize the automatic stopping of heating and dehumidification function, after completing heating and dehumidification work, external control case obtains the signal feedback that heating and dehumidification completes, and power model powers on operation.
The dampproof method of above-mentioned power model is adopted to be: because radiator is aluminium material, very easily produce condensed water, apply fluid sealant between the bottom ceramic wafer and radiator of IGBT after, it is inner that the condensate intercepted on radiator flows into IGBT, require, at dust free room, the tow sides of drive plate are applied three anti-paints simultaneously, realize moisture-proof function.
Relative to prior art, the power model possessing Moistureproof dehumidification function of the present invention has following advantage: owing to adopting technique scheme, by cooperatively interacting of PTC heating resistor, fluid sealant, temperature detect switch (TDS) and three anti-paints, complete Moistureproof dehumidification function, solve power model and store in high humidity environment and run the problem occurring moisture damage; Have moistureproof reliable, dehumidifying thoroughly, efficiently can process the advantages such as condensation problem.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is front view of the present invention;
Fig. 2 is end view of the present invention;
Fig. 3 is structural representation of the present invention.
Description of reference numerals:
1-IGBT, 2-radiator, 3-PTC heating resistor, 4-fluid sealant, 5-temperature detect switch (TDS), 6-binding post, 7-drive plate, 8-panel beating support.
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As shown in Figures 1 to 3, a kind of power model possessing Moistureproof dehumidification function, comprise IGBT1, radiator 2, drive plate 7, PTC heating resistor 3, fluid sealant 4, temperature detect switch (TDS) 5, three anti-paints and binding post 6, in the centre position of described radiator 2, described IGBT1 is installed, described fluid sealant 4 is coated in ceramic bottom board and radiator 2 junction of described IGBT1, described PTC heating resistor 3 to be arranged on the described radiator 2 for dispelling the heat to IGBT1 and to be positioned at IGBT1 both sides, at the installed surface coated with thermally conductive silicone grease of described PTC heating resistor 3, with screw, PTC heating resistor 3 is installed on radiator 2, described PTC heating resistor 3 selects the PTC heating resistor of ptc characteristics, described IGBT1 is provided with drive plate 7, described three anti-paints adopt automatic spraying machine to be sprayed on the positive and negative of drive plate 7 at dust-free workshop, and dry completely, drive plate 7 after anti-for spraying three paint process is arranged on IGBT1, and carry out wiring work, described temperature detect switch (TDS) 5 to be arranged on radiator 2 and to be positioned near described PTC heating resistor 3, closed type temperature detect switch (TDS) selected by described temperature detect switch (TDS) 5, described radiator 2 is provided with panel beating support 8, described binding post 6 is arranged on described panel beating support 8, external power source is received on binding post 6, described binding post 6 is drawn a power line and is connected with one end of described PTC heating resistor 3, binding post 6 provides independent current source for PTC heating resistor 3, the other end of described PTC heating resistor 3 is connected with one end of described temperature detect switch (TDS) 5, the described other end from temperature detect switch (TDS) 5 is drawn a power line and is received binding post 6, formed one complete by binding post 6, temperature detect switch (TDS) 5, the electric loop that PTC heating resistor 3 forms.
The dehumanization method of above-mentioned power model is adopted to be:
1) after external control case receives the control signal needing to carry out heating and dehumidification, power supply is delivered on binding post 6, PTC heating resistor 3 adds heat radiator 2, PTC heating resistor 3 improves radiator 2 temperature gradually, by radiator 2 heat exchange pattern, heat is transmitted to IGBT1 ceramic bottom board and drive plate 7 from radiator 2, thus IGBT1 inside chip and drive plate 7 are heated to uniform temperature, dry the condensate of chip and drive plate 7, realize dehumidification function.
2) when temperature detect switch (TDS) 5 reaches the temperature value of setting, according to design scheme evaluation now IGBT1 condensate that is inner and drive plate 7 dry completely, reach and meet the state that safety plays machine, now temperature detect switch (TDS) 5 can disconnect the electric loop be made up of binding post 6, temperature detect switch (TDS) 5, PTC heating resistor 3 automatically, realize the automatic stopping of heating and dehumidification function, after completing heating and dehumidification work, external control case obtains the signal feedback that heating and dehumidification completes, and power model powers on operation.
The dampproof method of above-mentioned power model is adopted to be: because radiator 2 is aluminium materials, very easily produce condensed water, apply fluid sealant 4 between the bottom ceramic wafer and radiator 2 of IGBT1 after, it is inner that the condensate intercepted on radiator 2 flows into IGBT1, require, at dust free room, the tow sides of drive plate 7 are applied three anti-paints simultaneously, realize moisture-proof function.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, 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 (7)
1. one kind possesses the power model of Moistureproof dehumidification function, it is characterized in that: comprise IGBT, radiator, drive plate, PTC heating resistor, fluid sealant, temperature detect switch (TDS), three anti-paint and binding posts, in the centre position of described radiator, described IGBT is installed, described fluid sealant is coated in ceramic bottom board and the radiator junction of described IGBT, described PTC heating resistor to be arranged on the described radiator for dispelling the heat to IGBT and to be positioned at IGBT both sides, described IGBT is provided with drive plate, described three anti-paints are sprayed on drive plate surface, described temperature detect switch (TDS) is installed on a heat sink and is positioned near described PTC heating resistor, described radiator is provided with panel beating support, described binding post is arranged on described panel beating support, external power source is received on binding post, described binding post is drawn a power line and is connected with one end of described PTC heating resistor, the other end of described PTC heating resistor is connected with one end of described temperature detect switch (TDS), the described other end from temperature detect switch (TDS) is drawn a power line and is received binding post, formed one complete by binding post, temperature detect switch (TDS), the electric loop of PTC heating resistor composition.
2. a kind of power model possessing Moistureproof dehumidification function according to claim 1, is characterized in that: described three anti-paints will be coated in the tow sides of drive plate.
3. a kind of power model possessing Moistureproof dehumidification function according to claim 1 and 2, is characterized in that: described PTC heating resistor selects the PTC heating resistor of ptc characteristics.
4. a kind of power model possessing Moistureproof dehumidification function according to claim 3, is characterized in that: closed type temperature detect switch (TDS) selected by described temperature detect switch (TDS).
5. a kind of power model possessing Moistureproof dehumidification function according to claim 4, is characterized in that: at the installed surface coated with thermally conductive silicone grease of described PTC heating resistor, with screw, PTC heating resistor is installed on radiator.
6. the dehumanization method possessing the power model of Moistureproof dehumidification function according to claim 1, is characterized in that: dehumidifying step is as follows:
1) after external control case receives the control signal needing to carry out heating and dehumidification, power supply is delivered on binding post, PTC heating resistor adds heat radiator, PTC heating resistor improves radiator temperature gradually, by radiator heat conduction pattern, heat is transmitted to IGBT ceramic bottom board and drive plate from radiator, thus IGBT inside chip and drive plate are heated to uniform temperature, dry the condensate of chip and drive plate, realize dehumidification function;
2) when temperature detect switch (TDS) reaches the temperature value of setting, according to design scheme evaluation now IGBT condensate that is inner and drive plate dry completely, reach and meet the state that safety plays machine, now temperature detect switch (TDS) can disconnect the electric loop be made up of binding post, temperature detect switch (TDS), PTC heating resistor automatically, realize the automatic stopping of heating and dehumidification function, after completing heating and dehumidification work, external control case obtains the signal feedback that heating and dehumidification completes, and power model powers on operation.
7. the dampproof method possessing the power model of Moistureproof dehumidification function according to claim 1, is characterized in that: dampproof method is as follows:
Because radiator is aluminium material, very easily produce condensed water, apply fluid sealant between the bottom ceramic wafer and radiator of IGBT after, it is inner that the condensate intercepted on radiator flows into IGBT, require, at dust free room, the tow sides of drive plate are applied three anti-paints simultaneously, realize moisture-proof function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510785001.6A CN105281547A (en) | 2015-11-13 | 2015-11-13 | Power module with moisture-proof and dehumidifying function, and moisture-proof and dehumidifying method of the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510785001.6A CN105281547A (en) | 2015-11-13 | 2015-11-13 | Power module with moisture-proof and dehumidifying function, and moisture-proof and dehumidifying method of the same |
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| CN105281547A true CN105281547A (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510785001.6A Pending CN105281547A (en) | 2015-11-13 | 2015-11-13 | Power module with moisture-proof and dehumidifying function, and moisture-proof and dehumidifying method of the same |
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Cited By (2)
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| CN106505874A (en) * | 2016-09-26 | 2017-03-15 | 国网江苏省电力公司盐城供电公司 | A household photovoltaic inverter box |
| CN112601417A (en) * | 2020-11-16 | 2021-04-02 | 杭州大和热磁电子有限公司 | Safe high-performance refrigeration module |
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Application publication date: 20160127 |
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