CN206271693U - The heat abstractor of insulated gate bipolar transistor in a kind of photovoltaic DC-to-AC converter - Google Patents
The heat abstractor of insulated gate bipolar transistor in a kind of photovoltaic DC-to-AC converter Download PDFInfo
- Publication number
- CN206271693U CN206271693U CN201621413113.5U CN201621413113U CN206271693U CN 206271693 U CN206271693 U CN 206271693U CN 201621413113 U CN201621413113 U CN 201621413113U CN 206271693 U CN206271693 U CN 206271693U
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- CN
- China
- Prior art keywords
- bipolar transistor
- insulated gate
- gate bipolar
- radiator
- photovoltaic
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model is related to the heat abstractor of IGBT (insulated gate bipolar transistor) in photovoltaic combining inverter, it is adaptable to the radiating of IGBT in photovoltaic combining inverter.The beneficial effects of the utility model are：The characteristics of the utility model combination connection in series-parallel air channel, the uniform difference of multiple insulated gate bipolar transistor IGBTs is on a heat sink, from the lower section air intake of each insulated gate bipolar transistor IGBT, corresponding air inlet is arranged in parallel, cold air flows through radiator simultaneously from top to bottom, so as to the circumstance of temperature difference of each insulated gate bipolar transistor IGBT is balanced, the radiating efficiency of IGBT is drastically increased, be easy to be widely popularized and use.
Description
Technical field
The utility model is related to the heat abstractor of IGBT (insulated gate bipolar transistor) in photovoltaic combining inverter, is applicable
The radiating of IGBT in photovoltaic combining inverter.
Background technology
The regenerative resource such as solar energy generates electricity by way of merging two or more grid systems technology as study hotspot in recent years.Wherein photovoltaic combining inverter is made
It is solar generating system and the interface equipment of power network, its reliability decides the safe operation of photovoltaic system but high power three-phase light
Volt combining inverter research emphasis focus primarily on design and the realization aspect of main circuit, and the research to its cooling system is less.And
The quality of high power three-phase photovoltaic combining inverter cooling system design, can be directly connected to three-phase photovoltaic grid-connected inverting device pacify
Stably work entirely.The cooling system of high power three-phase photovoltaic combining inverter, primarily directed to device for power switching design,
Reason is device for power switching more sensitive to temperature in itself, and the change of temperature can influence device to turn on and off process, influence
The service behaviour of photovoltaic combining inverter, device for power switching permanent damages can be caused when temperature is too high, so that photovoltaic is simultaneously
Net inverter cannot work.
Utility model content
In view of the shortcomings of the prior art, the utility model insulate in providing a kind of photovoltaic DC-to-AC converter of good heat dissipation effect
The heat abstractor of grid bipolar transistor.
The utility model is achieved through the following technical solutions：
The heat abstractor of insulated gate bipolar transistor in a kind of photovoltaic DC-to-AC converter, including radiator, insulated gate bipolar
Transistor IGBT and axial flow blower, are evenly distributed with multiple insulated gate bipolar transistor IGBTs, the bottom of radiator on radiator
End is evenly distributed with air inlet, and the top of radiator is provided with multiple axial flow blowers, and the top of radiator is evenly distributed with air-out
Mouthful, the air inlet of radiator bottom is corresponded with the air outlet on top, and the air inlet of radiator bottom is corresponding with top
Air outlet forms air channel.
Further, the radiator scribbles radiating insulating and mixes with the mounting surface of insulated gate bipolar transistor IGBT
Agent.
Further, the radiating insulating intermixture is heat-conducting silicone grease.
Further, the radiator is fixed together with insulated gate bipolar transistor IGBT by screw.
Compared with prior art, the beneficial effects of the utility model are：The characteristics of the utility model combination connection in series-parallel air channel,
Multiple insulated gate bipolar transistor IGBTs are uniformly distinguished on a heat sink, under each insulated gate bipolar transistor IGBT
Fang Jinfeng, corresponding air inlet is arranged in parallel, and cold air flows through radiator simultaneously from top to bottom, so that each insulated gate bipolar
The circumstance of temperature difference of transistor IGBT is balanced, drastically increases the radiating efficiency of IGBT, is easy to be widely popularized and uses.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In accompanying drawing 1：1. radiator；2. insulated gate bipolar transistor IGBT；3. air inlet；4. axial flow blower.
Specific embodiment
The basic principle of Duct design is：1. the heat-delivery surface of gas shock radiator is guided, to strengthen heat exchange, is carried
Radiating effect high；2. the windage in air channel is reduced, to prevent the loss in head of air-flow excessive；3. outlet conduits also should ensure that hot gas
Stream can be discharged smoothly, and the design of heat dissipation wind channel should as far as possible optimize under the requirement for taking into full account unit radiating.Duct design is usual
There is two ways：Series connection air channel and parallel air duct series connection air channel are relative up and down by the radiator of each power, and it is right up and down to be formed
The air channel answered, but there is a problem of heating successively from top to bottom due to air, cause power cell circumstance of temperature difference above small, dissipate
Thermal effect is poor；It is arranged in parallel from air intake before each power cell, corresponding air inlet in parallel air duct design, below
Extracted out by blower fan after collecting in wind cabin, but need to form wind cabin, the volume of equipment is increased, simultaneously because after each power cell
Hold the distance of blower fan different so that the wind flow of each power cell is inconsistent.
The heat abstractor of insulated gate bipolar transistor in a kind of photovoltaic DC-to-AC converter as shown in Figure 1, including radiator 1,
Insulated gate bipolar transistor IGBT 2 and axial flow blower 4, are evenly distributed with multiple insulated gate bipolar transistors on radiator 1
IGBT2, the bottom of radiator 1 is evenly distributed with air inlet 3, and the top of radiator 1 is provided with multiple axial flow blowers 4, radiator 1
Top be evenly distributed with air outlet (not indicating in figure), a pair of the air inlet 3 of the bottom of radiator 1 and the air outlet one on top
Should, the air outlet that the air inlet 3 of the bottom of radiator 1 is corresponding with top forms air channel.
Further, the radiator 1 scribbles radiating insulating and mixes with the mounting surface of insulated gate bipolar transistor IGBT 2
Mixture (is not identified) in figure.
Further, the radiating insulating intermixture is heat-conducting silicone grease.
Further, the radiator 1 is fixed by screw (not identified in figure) with insulated gate bipolar transistor IGBT 2
Link together.
In sum, preferred embodiment only of the present utility model, not for limit the utility model implementation
Scope, impartial change carried out by all shapes according to described in the utility model right, construction, feature and spirit with repair
Decorations, all should be included in right of the present utility model.
Claims (4)
1. in a kind of photovoltaic DC-to-AC converter insulated gate bipolar transistor heat abstractor, it is characterised in that：Including radiator, insulation
Grid bipolar transistor IGBT and axial flow blower, are evenly distributed with multiple insulated gate bipolar transistor IGBTs on radiator, dissipate
The bottom of hot device is evenly distributed with air inlet, and the top of radiator is provided with multiple axial flow blowers, and the top of radiator is uniformly divided
It is furnished with air outlet, the air inlet of radiator bottom and the air outlet one-to-one corresponding on top, the air inlet of radiator bottom and top
Corresponding air outlet forms air channel.
2. in a kind of photovoltaic DC-to-AC converter according to claim 1 insulated gate bipolar transistor heat abstractor, its feature
It is：The radiator scribbles radiating insulating intermixture with the mounting surface of insulated gate bipolar transistor IGBT.
3. in a kind of photovoltaic DC-to-AC converter according to claim 2 insulated gate bipolar transistor heat abstractor, its feature
It is：The radiating insulating intermixture is heat-conducting silicone grease.
4. the radiating of insulated gate bipolar transistor is filled in a kind of photovoltaic DC-to-AC converter according to claim any one of 1-3
Put, it is characterised in that：The radiator is fixed together with insulated gate bipolar transistor IGBT by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621413113.5U CN206271693U (en) | 2016-12-21 | 2016-12-21 | The heat abstractor of insulated gate bipolar transistor in a kind of photovoltaic DC-to-AC converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621413113.5U CN206271693U (en) | 2016-12-21 | 2016-12-21 | The heat abstractor of insulated gate bipolar transistor in a kind of photovoltaic DC-to-AC converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206271693U true CN206271693U (en) | 2017-06-20 |
Family
ID=59047068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621413113.5U Expired - Fee Related CN206271693U (en) | 2016-12-21 | 2016-12-21 | The heat abstractor of insulated gate bipolar transistor in a kind of photovoltaic DC-to-AC converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206271693U (en) |
-
2016
- 2016-12-21 CN CN201621413113.5U patent/CN206271693U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170620 Termination date: 20181221 |