CN113489285B - Integral structure of high-power boost converter - Google Patents
Integral structure of high-power boost converter Download PDFInfo
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- CN113489285B CN113489285B CN202110727678.XA CN202110727678A CN113489285B CN 113489285 B CN113489285 B CN 113489285B CN 202110727678 A CN202110727678 A CN 202110727678A CN 113489285 B CN113489285 B CN 113489285B
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- circuit board
- semiconductor switch
- shell
- heat dissipation
- capacitor
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- 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
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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
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1438—Back panels or connecting means therefor; Terminals; Coding means to avoid wrong insertion
- H05K7/1447—External wirings; Wiring ducts; Laying cables
- H05K7/1451—External wirings; Wiring ducts; Laying cables with connections between circuit boards or units
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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
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1438—Back panels or connecting means therefor; Terminals; Coding means to avoid wrong insertion
- H05K7/1459—Circuit configuration, e.g. routing signals
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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
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
-
- 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
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20927—Liquid coolant without phase change
Abstract
The invention discloses an integral structure of a high-power boost converter, which comprises a shell, an inductance module, a capacitor, a circuit board and a semiconductor switch, wherein the inductance module is arranged on the shell; the shell is internally provided with a mounting cavity, the inductance module, the capacitor, the circuit board and the semiconductor switch are all arranged in the mounting cavity, the capacitor is positioned on the right side of the inductance module, the capacitor and the semiconductor switch are all connected to the circuit board through a laminated bus bar, the laminated bus bar is arranged at the upper ends of the inductance module and the capacitor, the circuit board is arranged at the upper end of the laminated bus bar, and the semiconductor switch is provided with a plurality of semiconductor switches which are respectively arranged on the front side and the rear side of the circuit board at intervals; so, through the overall arrangement design of each part for converter overall structure is compact succinct, and bulk density is high, and simultaneously, inductance module, electric capacity and semiconductor switch are arranged through the stromatolite and are connected in the circuit board, and the copper bar and the cable that do not have the mistake to synthesize complicacy are connected, safe and reliable, and product EMC performance is good, has reduced the product assembly degree of difficulty and cost, has improved the production efficiency of product.
Description
Technical Field
The invention relates to the technical field of converters, in particular to an integral structure of a high-power boost converter.
Background
At present, a plurality of inductors are placed on one side in a box body to serve as an assembly, glue is filled into the assembly integrally, a semiconductor switch is placed on the side of the inductor assembly, a circuit board is connected above the semiconductor switch, a capacitor is arranged above the circuit board, and all devices are connected through copper bars or cables; however, the structure design is complex, the layout of the devices is dispersed, the size of the whole structure of the converter is limited, meanwhile, the copper bar and the cable are complex to connect, the volume density is low, the assembly is complex, the electrical insulation failure fault is easy to occur, and the EMC performance is poor.
In addition, the bottom in the box is provided with the heat dissipation water course, and inductance and semiconductor switch all tile on the heat dissipation water course, and its radiating effect is not good enough for the heat that inductance, semiconductor switch produced when using can not effectually give off, leads to thermal accumulation and leads to the not good influence to each electrical part, and then leads to the stability in use of converter not good enough.
Therefore, a new technical solution is needed to solve the above problems.
Disclosure of Invention
In view of the above, the present invention is directed to the defects in the prior art, and the main object of the present invention is to provide an overall structure of a high-power boost converter, which is compact and simple in overall structure and high in volume density through the layout design of each component, and meanwhile, the present invention has no complicated copper bar and cable connection, and is safe and reliable, and the product has good EMC performance.
In order to achieve the purpose, the invention adopts the following technical scheme:
the integral structure of the high-power boost converter comprises a shell, and an inductance module, a capacitor, a circuit board and a semiconductor switch which are arranged on the shell; wherein: the utility model discloses a power supply, including casing, inductor module, electric capacity, circuit board and semiconductor switch, the installation cavity has in the casing, inductor module, electric capacity, circuit board and semiconductor switch all set up in the installation cavity, the electric capacity is located inductor module's right side, inductor module, electric capacity and semiconductor switch all arrange through the stromatolite and connect in the circuit board, the female row of stromatolite sets up in the upper end of inductor module, electric capacity, the circuit board sets up in the female upper end of arranging of stromatolite, semiconductor switch is provided with a plurality of and respectively interval formula sets up in the female front side, the rear side of arranging of stromatolite.
As a preferred scheme, the shell is internally provided with three heat dissipation water channels, the three heat dissipation water channels are sequentially connected around the front side, the right side and the rear side of the inductance module and are arranged in a U shape, the left side of the shell is provided with a water inlet end and a water outlet end, the lower ends of the semiconductor switches on the front side and the rear side respectively abut against the upper ends of the heat dissipation water channels on the front side and the rear side, and the capacitor is located on the right side of the heat dissipation water channels.
As a preferred scheme, the housing includes a housing main body and a bottom cover, the mounting cavity is formed in the housing main body, three first convex portions extending upward are formed in the mounting cavity, the three first convex portions are sequentially connected and respectively disposed on the front side, the rear side and the right side of the inductance module, the three heat dissipation water channels are respectively formed inside the three first convex portions, and the lower ends of the front side semiconductor switch and the rear side semiconductor switch are respectively disposed at the upper ends of the first convex portions on the front side and the rear side;
and the lower end of the heat dissipation water channel penetrates through the shell main body, and the bottom cover is arranged at the lower end of the shell main body to close the heat dissipation water channel.
As a preferable scheme, the upper end of the bottom cover is provided with a second convex part, the second convex part is provided with three second convex parts which are sequentially connected and arranged corresponding to the three heat dissipation water channels, and the three second convex parts respectively extend into the corresponding heat dissipation water channels.
As a preferable scheme, a water passing gap is formed between the upper end of the bottom cover and the lower end of the shell main body, and the water passing gap is communicated with the three radiating water channels; or the water passing gap is communicated with the heat dissipation water channels on the front side and the rear side.
Preferably, a heat conducting sheet is provided between the semiconductor switch and the first convex portion.
As a preferable scheme, the heat conducting sheet is a ceramic sheet.
As a preferred scheme, a connecting portion is disposed on an outer side of the shell main body, a first connecting hole is formed at a lower end of the connecting portion, a second connecting hole is formed in the bottom cover corresponding to the connecting portion, and the bottom cover and the shell main body are sequentially connected to the second connecting hole and the first connecting hole from bottom to top through a connecting member to form an assembling connection between the bottom cover and the shell main body.
As a preferred scheme, the circuit board is including drive circuit board and control circuit board, drive circuit board sets up in the female upper end of arranging of stromatolite, control circuit board sets up in drive circuit board's upper end, inductance module, electric capacity and semiconductor switch all connect in drive circuit board through female the arranging of stromatolite, drive circuit board connects in control circuit board.
As a preferred scheme, the right side of the shell is provided with an input interface and an output interface, the input interface and the output interface are both provided with connecting ends, and the connecting ends of the input interface and the output interface are both arranged in the mounting cavity and connected to the circuit board.
Compared with the prior art, the invention has obvious advantages and beneficial effects, and particularly, according to the technical scheme, the converter is compact and simple in overall structure and high in volume density mainly through the layout design of all the parts, and meanwhile, the inductance module, the capacitor and the semiconductor switch are connected to the circuit board through the laminated busbar, and the fault caused by electrical insulation failure of the converter is reduced due to the connection of copper bars and cables without complex and complicated, so that the converter is safe and reliable, the EMC performance of the product is good, the structural design is ingenious and reasonable, the assembly difficulty and the assembly cost of the product are reduced, and the production efficiency of the product is improved;
secondly, the three heat dissipation water channels are sequentially connected around the inductance module, so that the heat dissipation effect of the inductance module is improved, and meanwhile, the semiconductor switch is arranged at the upper end of the heat dissipation water channels, so that heat generated by the semiconductor switch in use is discharged outwards through the heat dissipation water channels, the heat dissipation effect is good, and the use is stable;
and the arrangement of the water passing gap enables the heat at the bottom of the inductance module to flow into the heat dissipation water channel through the water passing gap and be discharged outwards, so that the heat dissipation effect of the inductance module is further improved, and the use of the product is ensured.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is another perspective view of an embodiment of the present invention;
FIG. 3 is an exploded view of an embodiment of the present invention;
FIG. 4 is a first cross-sectional view of an embodiment of the present invention;
FIG. 5 is a second cross-sectional view of an embodiment of the present invention;
fig. 6 is a third cross-sectional view of an embodiment of the present invention.
The attached drawings indicate the following:
10. casing 101, input interface
102. Output interface 103, connection terminal
11. Case main body 111 and mounting cavity
112. First projection 113 and connecting part
114. First connecting hole 12, bottom cover
121. Second protrusion 122, second connection hole
13. Radiating water channel 14 and water inlet end
15. Water outlet end 20 and inductance module
30. Capacitor 40 and circuit board
41. Drive circuit board 42 and control circuit board
50. Semiconductor switch 51 and heat conducting sheet
60. And the laminated busbar.
Detailed Description
Referring to fig. 1 to 6, specific structures of the embodiments of the present invention are shown.
The integral structure of the high-power boost converter comprises a shell 10, an inductance module 20, a capacitor 30, a circuit board 40 and a semiconductor switch 50, wherein the inductance module 20, the capacitor 30, the circuit board 40 and the semiconductor switch 50 are arranged on the shell 10; wherein: the inductor module 20, the capacitor 30 and the semiconductor switch 50 are all connected to the circuit board 40 through a laminated busbar 60, the laminated busbar 60 is arranged at the upper ends of the inductor module 20 and the capacitor 30, the circuit board 40 is arranged at the upper end of the laminated busbar 60, and the semiconductor switch 50 is provided with a plurality of semiconductor switches which are arranged at the front side and the rear side of the laminated busbar 60 at intervals respectively; preferably, the semiconductor switch 50 is a discrete IGBT semiconductor switch; so, through the overall arrangement design of each part for converter overall structure is compact succinct, and bulk density is high, and simultaneously, inductance module and inductance are arranged through the stromatolite and are connected in the circuit board, and the copper bar and the cable that the no mistake was synthesized complicatedly are connected, have reduced the converter and have appeared the electrical insulation failure and lead to breaking down, safe and reliable, product EMC performance is good.
The inductor module is characterized in that a heat dissipation water channel 13 is arranged in the shell 10, three heat dissipation water channels 13 are arranged on the heat dissipation water channels 13, the three heat dissipation water channels 13 are sequentially connected around the front side, the right side and the rear side of the inductor module 20 and are arranged in a U shape, a water inlet end 14 and a water outlet end 15 are arranged on the left side of the shell 10, the lower ends of the semiconductor switches 50 on the front side and the rear side respectively abut against the upper ends of the heat dissipation water channels 13 on the front side and the rear side, and the capacitor 30 is located on the right side of the heat dissipation water channels 13.
The housing 10 includes a housing body 11 and a bottom cover 12, the mounting cavity 111 is formed in the housing body 11, three first protrusions 112 extending upward are formed in the mounting cavity 111, the three first protrusions 112 are sequentially connected and respectively disposed on the front side, the rear side, and the right side of the inductor module 20, the three first protrusions 112 and the mounting cavity enclose to form a mounting region for mounting and positioning the inductor module, the three heat dissipation water channels 13 are respectively formed inside the three first protrusions 112, and the lower ends of the front-side semiconductor switch 50 and the rear-side semiconductor switch 50 are respectively disposed at the upper ends of the front-side first protrusions 112 and the rear-side first protrusions 112; here, a heat conductive sheet 51 is provided between the semiconductor switch 50 and the first convex portion 112; preferably, the water inlet end 14 is communicated with the rear side heat dissipation water channel 13, the water outlet end 15 is communicated with the front side heat dissipation water channel 13, and the heat conduction plate 51 is a ceramic plate.
The lower end of the heat dissipation water channel 13 penetrates through the shell main body 11, and the bottom cover 12 is hermetically arranged at the lower end of the shell main body 11 to seal the heat dissipation water channel 13; here, the upper end of the bottom cover 12 is provided with a second protrusion 121, the second protrusion 121 is provided with three and is sequentially connected to three corresponding heat dissipation water channels 13, and the three second protrusions 121 respectively extend into the corresponding heat dissipation water channels 13.
A water passing gap (not shown) is formed between the upper end of the bottom cover 12 and the lower end of the shell main body 11, and the water passing gap is communicated with the three heat dissipation water channels 13; or, the water passing gap is communicated with the heat dissipation water channels 13 on the front side and the rear side.
The outer side of the case main body 11 is provided with a connecting portion 113, the lower end of the connecting portion 113 is provided with a first connecting hole 114, the bottom cover 12 is provided with a second connecting hole 122 corresponding to the connecting portion 113, and the bottom cover 12 is sequentially connected to the second connecting hole 122 and the first connecting hole 114 from bottom to top through a connecting member to form an assembling connection between the bottom cover 12 and the case main body 11.
The circuit board 40 includes a driving circuit board 41 and a control circuit board 42, the driving circuit board 41 is disposed on the upper end of the laminated busbar 60, the control circuit board 42 is disposed on the upper end of the driving circuit board 41, the inductance module 20, the capacitor 30 and the semiconductor switch 50 are connected to the driving circuit board 41 through the laminated busbar 60, and the driving circuit board 41 is connected to the control circuit board 42.
An input interface 101 and an output interface 102 are arranged on the right side of the shell 10, the input interface 101 and the output interface 102 are both provided with a connecting end 103, and the connecting end 103 of the input interface 101 and the connecting end 103 of the output interface 102 are both arranged in the mounting cavity 111 and are connected to the control circuit board 42 through the laminated busbar 60.
The transformer is mainly characterized in that the overall structure of the transformer is compact and concise and the volume density is high through the layout design of all parts, meanwhile, the inductance module, the inductance and the semiconductor switch are all connected to the circuit board through the laminated busbar, and the transformer is free of complicated copper bar and cable connection, so that the occurrence of faults caused by electrical insulation failure of the transformer is reduced, the transformer is safe and reliable, the EMC performance of the product is good, the structural design is ingenious and reasonable, the assembly difficulty and the assembly cost of the product are reduced, and the production efficiency of the product is improved;
secondly, the three heat dissipation water channels are sequentially connected and arranged around the inductance module, so that the heat dissipation effect of the inductance module is improved, and meanwhile, the semiconductor switch is arranged at the upper end of the heat dissipation water channel, so that heat generated by the semiconductor switch in use is discharged outwards through the heat dissipation water channels, the heat dissipation effect is good, and the use is stable;
and the arrangement of the water passing gap enables the heat at the bottom of the inductance module to flow into the heat dissipation water channel through the water passing gap and be discharged outwards, so that the heat dissipation effect of the inductance module is further improved, and the use of the product is ensured.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (8)
1. An overall structure of a high-power boost converter is characterized in that: the circuit board comprises a shell, and an inductance module, a capacitor, a circuit board and a semiconductor switch which are arranged on the shell; wherein: the inductor module, the capacitor and the semiconductor switch are connected to the circuit board through a laminated bus bar, the laminated bus bar is arranged at the upper ends of the inductor module and the capacitor, the circuit board is arranged at the upper end of the laminated bus bar, and the semiconductor switch is provided with a plurality of semiconductor switches which are arranged at the front side and the rear side of the laminated bus bar at intervals; the circuit board comprises a driving circuit board and a control circuit board, the driving circuit board is arranged at the upper end of the laminated busbar, the control circuit board is arranged at the upper end of the driving circuit board, the inductance module, the capacitor and the semiconductor switch are all connected to the driving circuit board through the laminated busbar, and the driving circuit board is connected to the control circuit board; the right side of casing is provided with input interface and output interface, input interface and output interface all are provided with the link, the link of input interface and the link of output interface all set up in the installation intracavity and connect in the circuit board.
2. The overall structure of a high power boost converter according to claim 1, characterized in that: the inductor module is characterized in that three radiating water channels are arranged in the shell, the three radiating water channels are sequentially connected around the front side, the right side and the rear side of the inductor module and are arranged in a U shape, a water inlet end and a water outlet end are arranged on the left side of the shell, the lower ends of the semiconductor switches on the front side and the rear side are respectively abutted against the upper ends of the radiating water channels on the front side and the rear side, and the capacitor is located on the right side of the radiating water channels.
3. The overall structure of a high-power boost converter according to claim 2, characterized in that: the shell comprises a shell main body and a bottom cover, the installation cavity is formed in the shell main body, three first convex parts extending upwards are arranged in the installation cavity, the three first convex parts are sequentially connected and respectively arranged on the front side, the rear side and the right side of the inductance module, three heat dissipation water channels are respectively formed in the three first convex parts, and the lower ends of the front side semiconductor switch and the rear side semiconductor switch are respectively arranged at the upper ends of the first convex parts on the front side and the rear side;
and the lower end of the heat dissipation water channel penetrates through the shell main body, and the bottom cover is arranged at the lower end of the shell main body to close the heat dissipation water channel.
4. The overall structure of a high power boost converter according to claim 3, characterized in that: the upper end of the bottom cover is provided with a second convex part, the second convex part is provided with three second convex parts which are sequentially connected and arranged corresponding to the three heat dissipation water channels, and the three second convex parts respectively extend into the corresponding heat dissipation water channels.
5. The overall structure of a high power boost converter according to claim 3, characterized in that: a water passing gap is formed between the upper end of the bottom cover and the lower end of the shell main body and is communicated with the three radiating water channels; or the water passing gap is communicated with the heat dissipation water channels on the front side and the rear side.
6. The overall structure of a high power boost converter according to claim 3, characterized in that: and a heat conducting sheet is arranged between the semiconductor switch and the first convex part.
7. The overall structure of a high power boost converter according to claim 6, characterized in that: the heat conducting fin is a ceramic wafer.
8. The overall structure of a high power boost converter according to claim 3, characterized in that: the outer side of the shell main body is provided with a connecting part, the lower end of the connecting part is provided with a first connecting hole, the bottom cover is provided with a second connecting hole corresponding to the connecting part, and the bottom cover is sequentially connected with the second connecting hole and the first connecting hole from bottom to top through a connecting piece to form assembly connection between the bottom cover and the shell main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110727678.XA CN113489285B (en) | 2021-06-29 | 2021-06-29 | Integral structure of high-power boost converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110727678.XA CN113489285B (en) | 2021-06-29 | 2021-06-29 | Integral structure of high-power boost converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113489285A CN113489285A (en) | 2021-10-08 |
| CN113489285B true CN113489285B (en) | 2022-05-27 |
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| CN202110727678.XA Active CN113489285B (en) | 2021-06-29 | 2021-06-29 | Integral structure of high-power boost converter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478224B (en) * | 2008-09-26 | 2011-05-18 | 中国科学院近代物理研究所 | A type bus bar stacking method for large power pulse switch power supply |
| CN201623650U (en) * | 2009-12-17 | 2010-11-03 | 中国电力科学研究院 | Inverter with modularized installation |
| CN103270696B (en) * | 2010-11-05 | 2017-09-26 | 沙夫纳 Emv 股份公司 | EMC filter circuit |
| CN103795270B (en) * | 2014-01-16 | 2017-01-04 | 北京能高自动化技术股份有限公司 | A kind of water-cooled photovoltaic DC-to-AC converter |
| CN105471225A (en) * | 2015-12-25 | 2016-04-06 | 大连尚能科技发展有限公司 | Highly integrated converter power module |
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