CN203596741U - Dc-dc converter - Google Patents
Dc-dc converter Download PDFInfo
- Publication number
- CN203596741U CN203596741U CN201320676567.1U CN201320676567U CN203596741U CN 203596741 U CN203596741 U CN 203596741U CN 201320676567 U CN201320676567 U CN 201320676567U CN 203596741 U CN203596741 U CN 203596741U
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- Prior art keywords
- conductive pattern
- substrate
- filtering
- transformer
- double
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- Expired - Fee Related
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Abstract
The utility model provides a DC-DC converter capable of inhibiting reduction of filtering efficiency of a filtering portion; the DC-DC converter comprises a dual-face substrate (30); the dual-face substrate (30) forms a first conductor pattern (32) and a second conductor pattern (33), both made of metal plates, on two faces of the an insulation substrate (31); furthermore, the dual-face substrate (30) can form a transformer (20), a rectification circuit portion (A), a flat circuit portion (B) and a filtering portion (C).
Description
Technical field
The utility model relate to possess transformer, the DC-DC transducer of rectification circuit portion, smoothing circuit portion and filtering portion.
Background technology
The disclosed power inverter of patent documentation 1 possesses: the rectifier such as the rectification circuit being made up of rectifier diode or the transducer that can control regeneration of being made up of semiconductor element; Make the level and smooth smmothing capacitor of direct voltage of rectifier; And the main circuit electric component of the inverter that forms of the voltage source inverter being formed by HF switch element that direct current is converted to the interchange of the frequency of expectation.Above-mentioned main circuit electric component is disposed on cooling fan pedestal, is fixed with large electric current substrate on this main circuit electric component.One side at large electric current substrate is formed with the main circuit conductor that the terminal of main circuit electric component is connected each other.
Patent documentation 1: Japanese kokai publication hei 11-69774 communique
But, in the power inverter of patent documentation 1, be not provided with filtering portion.Consider, in the case of filtering portion being arranged at the power inverter of patent documentation 1, the parts that form filtering portion to be connected with large electric current substrate.But, if simply filtering portion is connected with large electric current substrate, thus due to filtering portion and large electric current substrate be connected L (inductance) thus can become the filtration efficiency reduction of filtering portion greatly.
Utility model content
The purpose of this utility model is the DC-DC transducer of the reduction that a kind of filtration efficiency that can suppress filtering portion is provided.
For will being intended to of the DC-DC transducer that achieves the above object, possesses double-sided substrate, this double-sided substrate is formed with the conductive pattern being made up of metallic plate on the two sides of insulated substrate, form transformer, rectification circuit portion, smoothing circuit portion and filtering portion by above-mentioned double-sided substrate.
According to said structure, by filtering portion is formed as to tabular, thereby can earthing member (ground) be set with respect to the nearer position of capacitor that forms filtering portion.Thus, the inductance between capacitor-earthing member diminishes, thereby improves the filter effect of filtering portion.
Preferably, form and form the coil of above-mentioned smoothing circuit portion and form the coil of above-mentioned filtering portion by above-mentioned conductive pattern.
Preferably, formed first side winding and the secondary side winding of above-mentioned transformer by above-mentioned conductive pattern, formed at least a portion in the distribution part that forms above-mentioned rectification circuit portion, above-mentioned smoothing circuit portion and above-mentioned filtering portion by above-mentioned conductive pattern.
Preferably, the primary side of above-mentioned transformer is with state and the thermal component hot link of insulation.
According to the utility model, can suppress the reduction of the filtration efficiency of filtering portion.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the DC-DC transducer of execution mode.
Fig. 2 is the vertical view of the first circuit substrate.
Fig. 3 is the 3-3 line cutaway view of Fig. 2.
Fig. 4 is the 4-4 line cutaway view of Fig. 2.
Embodiment
Below, based on accompanying drawing, the execution mode that the utility model specialized is described.
As shown in Figure 1, DC-DC transducer 10 possesses the first circuit substrate 11 and second circuit substrate 12.The first circuit substrate 11 and second circuit substrate 12 interconnect via syndetons such as connectors.
Be provided with transformer 20, diode 21,22, series reactor 23, smmothing capacitor 24, filter coil 25 and filtering capacitor 26 at the first circuit substrate 11.Be provided with the switch element 27 and the drive circuit 28 that are connected with the primary side of transformer 20 at second circuit substrate 12.
In the first circuit substrate 11, diode 21,22 forms the A of rectification circuit portion.Series reactor 23 and smmothing capacitor 24 form the LC smoothing circuit as the B of smoothing circuit portion.Filter coil 25 and filtering capacitor 26 form the LC filter circuit as the C of filtering portion.
Utilize drive circuit 28 to carry out switch to switch element 27, be converted into electric power at the secondary side of transformer 20 via diode 21,22, series reactor 23, smmothing capacitor 24, filter coil 25 and filtering capacitor 26 from the direct current of outside input thus and by this electric power output.And voltage and the output voltage of the secondary side of transformer 20 are monitored, and pilot signal is fed back to drive circuit 28.
Next, the structure of the first circuit substrate 11 is described.
As shown in FIG. 2 and 3, the first circuit substrate 11 possesses double-sided substrate 30, this double-sided substrate 30 comprises insulated substrate 31, be formed at insulated substrate 31 first surface the first conductive pattern 32 and be formed at second conductive pattern 33 of second of insulated substrate 31.And then, on each conductive pattern of double-sided substrate 30, be equipped with the electronic component that forms the A of rectification circuit portion, the B of smoothing circuit portion and the C of filtering portion.
The first conductive pattern 32 and the second conductive pattern 33 are the parts that are made up of the metallic plate of shape that is formed as regulation, by punching press, metallic plate stamping-out is become to the pattern form (punch process) of regulation thus be shaped.The thickness of metallic plate is preferably 0.4～2.0mm, more preferably 0.5～1.0mm.
As shown in Figure 2, be formed with a circle planar coil 32a of portion of the secondary side winding that forms transformer 20 and form a circle planar coil 32b of portion of series reactor 23 at the first conductive pattern 32.And, be formed with the distribution part that forms the A of rectification circuit portion and the B of smoothing circuit portion at the first conductive pattern 32.
Be provided with the two circle planar coil 33a of portion of the first side winding that forms transformer and form a circle planar coil 33b of portion of filter coil at the second conductive pattern 33.And, be formed with the distribution part that forms the C of filtering portion at the second conductive pattern 33.In addition, in Fig. 2, only the 33a of planar coil portion, 33b in the second conductive pattern 33 are represented with chain-dotted line.
As shown in Figure 3, be provided with bellying 33c at the second conductive pattern 33, this bellying 33c is inserted in the through hole 31a that is arranged at insulated substrate 31, and bloats towards the first surface side of insulated substrate 31.Bellying 33c is formed as: its top is formed as plane, and the upper surface of its upper surface and the first conductive pattern 32 is in the same plane.And then bellying 33c is the position for carrying for diode 21,22, and become the distribution part that forms the A of rectification circuit portion.
As shown in Figure 2, be equipped with in the surperficial mode of crossing over the surface of the first conductive pattern 32 and the bellying 33c of the second conductive pattern 33 diode 21,22 that forms the A of rectification circuit portion in the first surface side of double-sided substrate 30.Smmothing capacitor 24 and filtering capacitor 26 are equipped on the surface of the first conductive pattern 32.
And, at double-sided substrate 30, magnetive cord 40～42 is installed.Magnetive cord 40 is iron cores of transformer 20, and is installed into and is positioned at the 33a of planar coil portion that forms first side winding and the central part and around that forms the 32a of planar coil portion of secondary side winding.Magnetive cord 41 is iron cores of series reactor 23, and is installed into and is positioned at the central part of the 32b of planar coil portion and around.Magnetive cord 42 is iron cores of filter coil 25, and is installed into and is positioned at the central part of the 33b of planar coil portion and around.
And then, between the first conductive pattern 32, between the second conductive pattern 33 and between the first conductive pattern 32 and the second conductive pattern 33, suitably be provided with the connecting portion such as wire jumper, through hole connecting between each conductive pattern (omitting diagram), make electric current by mobile like that shown in the circuit diagram of Fig. 1.
And as shown in Figure 4, the primary side of the transformer 20 in the first circuit substrate 11, the lower surface of the 33a of planar coil portion of the second conductive pattern 33 is bonded to thermal component 43 with hot linked state.And then, be configured to the heat producing as the 32a of planar coil portion, the 33a of the winding of transformer 20 is distributed towards thermal component 43.In addition, clamped silicon sheeting (omitting diagram) between the second conductive pattern 33 and thermal component 43, the second conductive pattern 33 engages with the state of electric insulation with thermal component 43 thus.
Next, the effect of the DC-DC transducer 10 to present embodiment describes.
In the DC-DC of present embodiment transducer 10, form the C of filtering portion by double-sided substrate 30.That is to say, form filter coil 25 by a part for the second conductive pattern 33 that is formed at double-sided substrate 30.And then, be formed as being equipped with filtering capacitor 26 on flat double-sided substrate 30.
By the equipped section of the filtering capacitor in double-sided substrate 30 26 is divided and is formed as tabular, thereby when by filtering capacitor 26 ground connection, can will become the component configuration such as the shell of earthing member for approaching filtering capacitor 26.And then, shorten by the distance between filtering capacitor 26 and earthing member, thereby the inductance between capacitor-earthing member diminishes.As a result, improve the filter effect of the C of filtering portion.
According to present embodiment, can obtain the effect of following record.
(1) DC-DC transducer 10 possesses double-sided substrate 30, and this double-sided substrate 30 is formed with the first conductive pattern 32 and the second conductive pattern 33 that are made up of metallic plate on the two sides of insulated substrate 31.And then, form transformer 20, the A of rectification circuit portion, the B of smoothing circuit portion and the C of filtering portion by double-sided substrate 30.
According to said structure, by the C of filtering portion is formed as to tabular, thereby can earthing member be set with respect to the nearer position of filtering capacitor 26 that forms the C of filtering portion.Thus, the inductance between capacitor-earthing member diminishes, thereby improves the filter effect of the C of filtering portion.
(2) be set to the first circuit substrate 11 independently individual components in the situation that in filtering portion, coupling part that may be between the first circuit substrate 11 and individual components, contact resistance increases, and heat dispersion reduces.On the other hand, in the situation that forming filtering portion by double-sided substrate 30, can suppress the reduction of heat dispersion.
(3) filtering portion is being formed as and independently individual components of the first circuit substrate 11, by screw, filtering portion is being fixedly installed in the situation of the first circuit substrate 11, from the viewpoint of assembly precision etc., existing and be easy to the tendency that causes that quality reduces.On the other hand, in the situation that forming filtering portion by double-sided substrate 30, do not carry out that screw thread is fixing just can install filtering portion, be therefore difficult to cause quality reduction.
(4) state that is provided with to insulate at the primary side of transformer 20 carries out hot linked thermal component 43.According to said structure, distribute towards thermal component 43 by the heat that the winding of transformer 20 is produced, thus can cooling transformer 20.
In addition, above-mentioned execution mode also can change as follows like that.
The structure of zero C of filtering portion can be ∏ type, CR type.
Zero can suitably change the first side winding (33a of planar coil portion) of transformer 20 and the number of turn of secondary side winding (32b of planar coil portion).
Zero can omit magnetive cord 41,42.
Zero can omit thermal component 43.
Zero can omit drive circuit 28.
Description of reference numerals
A... rectification circuit portion; B... smoothing circuit portion; C... filtering portion; 10...DC-DC transducer; 11... the first circuit substrate; 12... second circuit substrate; 20... transformer; 21,22... diode; 23... series reactor; 24... smmothing capacitor; 25... filter coil; 26... filtering capacitor; 30... double-sided substrate; 31... insulated substrate; 32... the first conductive pattern; 32a, 33a... planar coil portion; 33... the second conductive pattern; 43... thermal component.
Claims (4)
1. a DC-DC transducer, is characterized in that,
Possess double-sided substrate, this double-sided substrate is formed with the conductive pattern being made up of metallic plate on the two sides of insulated substrate,
Form transformer, rectification circuit portion, smoothing circuit portion and filtering portion by described double-sided substrate.
2. DC-DC transducer according to claim 1, is characterized in that,
Form and form the coil of described smoothing circuit portion and form the coil of described filtering portion by described conductive pattern.
3. DC-DC transducer according to claim 1 and 2, is characterized in that,
Formed first side winding and the secondary side winding of described transformer by described conductive pattern,
Formed at least a portion in the distribution part that forms described rectification circuit portion, described smoothing circuit portion and described filtering portion by described conductive pattern.
4. DC-DC transducer according to claim 1 and 2, is characterized in that,
The primary side of described transformer is with state and the thermal component hot link of insulation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-006663 | 2012-11-01 | ||
| JP2012006663U JP3180974U (en) | 2012-11-01 | 2012-11-01 | DC-DC converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203596741U true CN203596741U (en) | 2014-05-14 |
Family
ID=50425240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320676567.1U Expired - Fee Related CN203596741U (en) | 2012-11-01 | 2013-10-30 | Dc-dc converter |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3180974U (en) |
| CN (1) | CN203596741U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233717A (en) * | 2016-12-22 | 2018-06-29 | 富士施乐株式会社 | Power supply unit |
| CN109525099A (en) * | 2017-09-19 | 2019-03-26 | 群光电能科技股份有限公司 | Power conversion module |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5867490B2 (en) * | 2013-11-22 | 2016-02-24 | 株式会社豊田自動織機 | Electronics |
| JP6638324B2 (en) * | 2015-10-29 | 2020-01-29 | 株式会社豊田自動織機 | Power converter |
-
2012
- 2012-11-01 JP JP2012006663U patent/JP3180974U/en not_active Expired - Fee Related
-
2013
- 2013-10-30 CN CN201320676567.1U patent/CN203596741U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233717A (en) * | 2016-12-22 | 2018-06-29 | 富士施乐株式会社 | Power supply unit |
| CN109525099A (en) * | 2017-09-19 | 2019-03-26 | 群光电能科技股份有限公司 | Power conversion module |
| CN109525099B (en) * | 2017-09-19 | 2021-01-05 | 群光电能科技股份有限公司 | Power supply conversion module |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3180974U (en) | 2013-01-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140514 Termination date: 20161030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |