CN104302106B - Magnetic ring positioning construction based on heavy copper circuit board - Google Patents
Magnetic ring positioning construction based on heavy copper circuit board Download PDFInfo
- Publication number
- CN104302106B CN104302106B CN201410557184.1A CN201410557184A CN104302106B CN 104302106 B CN104302106 B CN 104302106B CN 201410557184 A CN201410557184 A CN 201410557184A CN 104302106 B CN104302106 B CN 104302106B
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- circuit board
- copper circuit
- magnetic ring
- heavy copper
- support
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Abstract
The invention discloses a kind of magnetic ring positioning construction based on heavy copper circuit board, it is inserted on E-type magnetic ring in heavy copper circuit board and carries out coarse positioning, the support of the upper and lower opening of elastic conjunction one on heavy copper circuit board, the inwall of the support is formed with some first flexible positioning pieces and superposed some second flexible positioning pieces positioned at bottom, the part that E-type magnetic ring protrudes heavy copper circuit board is located in support and is stuck between the first flexible positioning piece, and I types magnet ring is arranged on above E-type magnetic iron and is stuck between the second flexible positioning piece.E-type magnetic ring is accurately positioned by the first flexible positioning piece in the present invention, and I types magnet ring is accurately positioned by the second flexible positioning piece, and support is interference fitted with heavy copper circuit board, and whole location structure is simple, it is easy to manufacture and assembling.Moreover, upper bracket provides suitable pretightning force by flexible positioning piece in the horizontal direction, in the vertical direction provides thrust by the decrement of cushion, had both met vibratory impulse requirement, and avoided magnet ring from being subject to crushing again.
Description
Technical field
The present invention relates to the location technology of automobile-used DC/DC converters middle magnetic ring, while suitable for other power electronic products
The location structure of big component (such as transformer, inductance) around middle circuit board.
Background technology
Magnet ring is the important component in automobile DC/DC converters or other power electronic products, wherein thick copper circuit
Magnet ring in plate (abbreviation PCB) structure is by I types magnet ring with E-type magnetic ring group into the two collectively constitutes magnetic circuit.E-type magnetic ring is due to hair
Heat is big, it is necessary to radiated by cooled plate, therefore E-type magnetic ring is placed in cooled plate and carried out by PCB slightly spacing.I
Type magnet ring is directly placed on E-type magnetic ring, because its is simple in construction, lacks limit features, therefore be difficult positioning.
Existing targeting scheme mainly designs position limiting structure on the top cover of converter, as shown in figure 1, the two of top cover
Individual diagonal angle formation limited block, however, because I type magnet rings are heavier, it is impossible to it is fixed on top cover by mode for dispensing glue, because
This still can not carry out accurate limit before top cover installation to I types magnet ring.
In addition, part targeting scheme increases a plastic stent, such as Fig. 2 a, Fig. 2 b between E-type magnetic ring and I type magnet rings
Shown, the limited impression of correspondence E-type magnetic ring is formed on the bottom of the plastic stent, can split three juts of E-type magnetic ring
Enter, the cavity of accommodating I types magnet ring is formed on top, therefore I types magnet ring carries out coarse positioning by plastic stent, and plastic stent then passes through
E-type magnetic ring carries out coarse positioning.Because the dimensional tolerance of magnet ring is larger, generally in ± 0.3mm, therefore interference fit is difficult to, modeling
There is gap in material support, plastic stent still can not effectively fix magnet ring, and this results in the hair of leakage field situation with E, I type magnet ring
It is raw.
In addition, in existing location structure, all there is fit-up gap in E-type magnetic ring and I type magnet rings, this makes in the horizontal direction
Obtain the risk that magnet ring there is damaged in collision under the conditions of 50g impact.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of magnetic ring positioning construction based on heavy copper circuit board, Ke Yishi
Existing I types magnet ring and E-type magnetic ring are accurately positioned, while disclosure satisfy that vibratory impulse requirement, it is to avoid magnet ring is damaged.
In order to solve the above technical problems, the magnetic ring positioning construction based on heavy copper circuit board that the present invention is provided, including I type magnetic
Ring, heavy copper circuit board, E-type magnetic ring, wherein E-type magnetic ring are installed on the cooling plate, and heavy copper circuit board is formed with through hole, E-type magnetic ring
(magnet ring groove conducts built with the heat-conducting pad contacted with heavy copper circuit board to the heat of heavy copper circuit board) is inserted into upwards
In the through hole of heavy copper circuit board and its top is protruded above heavy copper circuit board, and a upper and lower opening is installed on the heavy copper circuit board
Support, the support and heavy copper circuit board interference fit；The inwall of the support be formed with some first flexible positioning pieces and
Some second flexible positioning pieces, the part that the E-type magnetic ring protrudes heavy copper circuit board, which is located in support and is stuck in the first elasticity, determines
Between the part of position, the I types magnet ring is arranged on above E-type magnetic iron and is stuck between the second flexible positioning piece.
It is preferred that, the inwall of the support is square.Further, first flexible positioning piece is every positioned at support respectively
The middle and lower part of individual medial surface.More preferably, each medial surface of the support is formed with two the second flexible positioning pieces, and it distinguishes position
In the both sides of the first flexible positioning piece of ipsilateral.
Preferably, first flexible positioning piece is upwarps arc-like sheet, second flexible positioning piece be under curved arc-like sheet.
More preferably, the inwall of the support is formed with some extension blocks, and the medial surface of each extension block is formed with one and upwarps arc-like sheet.
Further, the heavy copper circuit board is formed with least two positioning holes, and two of which positioning hole is located at E types respectively
Two diagonal angles of magnet ring；The bottom of the support is formed with the angle corresponding with the position of positioning hole of heavy copper circuit board, branch
Frame and heavy copper circuit board are fixed by angle and positioning hole interference fit.Preferably, positioning hole and angle are two.
In addition, the coldplate has the cavity of accommodating E-type magnetic ring, the heavy copper circuit board being interference fitted with support is arranged on
On coldplate, heat transfer is carried out provided with heat-conducting pad between E-type magnetic ring and coldplate.Location structure also includes an end cap, the end
Lid is fixedly connected with coldplate, the I types magnet ring, support, heavy copper circuit board and E-type magnetic ring seal be mounted in end cap and coldplate it
Between.More preferably, silica gel foamed buffer layer is provided between the I types magnet ring and end cap.
E-type magnetic ring is carried out thick spacing and accurate fixed by the flexible positioning piece of heavy copper circuit board and support respectively in the present invention
Position, the I types magnet ring being placed on E-type magnetic ring is accurately positioned by the flexible positioning piece of support, while support and thick copper electricity
Road plate interference fit, whole location structure is simple, it is easy to manufacture and assembling.Moreover, upper bracket is fixed by elasticity in the horizontal direction
Position part is that E-type magnetic ring and I type magnet rings provide suitable pretightning force, and in the vertical direction E-type magnetic ring and I types magnet ring are solid by end cap
Fixed and by cushion decrement provides thrust, can meet vibratory impulse requirement, and avoid magnet ring from being subject to crushing.
Brief description of the drawings
Fig. 1 is in the prior art using the magnetic ring positioning construction of top cover；
Fig. 2 a, 2b is in the prior art using the magnetic ring positioning constructions of plastic stent；
Fig. 3 is the decomposing schematic representation of the magnetic ring positioning construction of the present invention；
Fig. 4 a are the schematic perspective view of the support of the present invention；
Fig. 4 b are the side view of the support of the present invention；
Fig. 4 c are the sectional view of the support of the present invention；
Fig. 5 is the cooperation schematic diagram of support and heavy copper circuit board；
Fig. 6 is the cooperation schematic diagram of support, heavy copper circuit board and E-type magnetic ring；
Fig. 7 is the cooperation schematic diagram of support, heavy copper circuit board, E-type magnetic ring and I type magnet rings.
Wherein description of reference numerals is as follows：
1 is end cap；2 be silica gel foamed buffer layer；3 be I type magnet rings；4 be support；41 be angle；42 be to upwarp arc
Piece；43 be under curved arc-like sheet；44 be extension block；5 be heavy copper circuit board；51 be positioning hole；52 be through hole；6 be heat-conducting pad；7
For E-type magnetic ring；8 be heat-conducting pad；9 be cooled plate.
Embodiment
The present invention is further detailed explanation with embodiment below in conjunction with the accompanying drawings.
The magnetic ring positioning construction based on heavy copper circuit board that the present invention is provided, it is adaptable to DC/DC converters and power electronics
Converter, including I types magnet ring 3, heavy copper circuit board 5, E-type magnetic ring 7, wherein I types magnet ring 3 are in plane, under E-type magnetic ring 7 includes
Magnet ring groove, and E are formed between the planar section of side and three juts being formed on planar section, adjacent jut
The center protrusion of type magnet ring 7 is partially below both sides jut.E-type magnetic ring 7 is arranged on coldplate and is positioned and radiated.It is thick
Through hole 52 is formed with copper circuit board 5, E-type magnetic ring 7 is inserted into the through hole 52 of heavy copper circuit board 5 carries out coarse positioning, and E upwards
The heat that the top protrusion of type magnet ring 7 is produced in the top of heavy copper circuit board 5, magnet ring groove provided with heat-conducting pad 6 to heavy copper circuit board
Amount carries out heat loss through conduction.
The support 4 of one upper and lower opening is installed, the support 4 and heavy copper circuit board 5 are interference fitted on heavy copper circuit board 5.Support 4
Inwall be formed with some first flexible positioning pieces and some second flexible positioning pieces, the E-type magnetic ring 7 protrudes thick copper circuit
The part of plate 5 is located in support 4 and is stuck between the first flexible positioning piece, the I types magnet ring 3 be arranged on the top of E-type magnetic iron 7 and
It is stuck between the second flexible positioning piece.Because the center protrusion of E-type magnetic ring 7 is partially below both sides jut, therefore I types magnet ring 3
Bottom surface contacted with the top surface of the both sides jut of E-type magnetic ring 7, between existing between the top surface of the center protrusion part of E-type magnetic ring 7
Gap is to prevent magnetic circuit saturation, therefore the first flexible positioning piece is formed at the inner wall lower of support 4, and the second flexible positioning piece is formed at branch
The upper inside wall of frame 4.
Preferably, in the present embodiment, the inwall of support 4 is square, as shown in fig. 4 a, the first flexible positioning piece difference position
In the middle and lower part of each medial surface of support 4, each medial surface of support 4 is formed with two the second flexible positioning pieces, and it distinguishes position
In the both sides of the first flexible positioning piece of ipsilateral.Certainly, the quantity of the second flexible positioning piece is not limited thereto, in the first bullet
The top of property keeper can also be set, as long as spatially allowing.
It is preferred that, as shown in Fig. 4 a, Fig. 4 c, the first flexible positioning piece is upwarps arc-like sheet 42, and the second flexible positioning piece is
Under curved arc-like sheet 43.One is formed with each medial surface of support 4 and upwarps curved arc-like sheet 43 under arc-like sheet 42 and two, and
Under curved arc-like sheet 43 be located at and upwarp the both sides of arc-like sheet 42.As shown in fig. 6, E-type magnetic ring 7 is installed in support 4, four upwarp arc
Shape piece 42 carries out accurate limiting in the XY both directions of horizontal plane to E-type magnetic ring 7, it is met vibratory impulse requirement, again
It is avoided that and is subject to crushing.Similarly, as shown in fig. 7, I types magnet ring 3 is fitted into support 4, curved arc-like sheet 43 is in horizontal plane under eight
XY both directions carry out accurate limiting to E-type magnetic ring 7, it is met vibratory impulse requirement, are avoided that and are subject to crushing again.More preferably
, each upwarp arc-like sheet 42 and formed on an extension block 44, the extension block 44 is located on the medial surface of support 4, such as Fig. 4 a,
Shown in Fig. 4 c.
It is preferred that, as shown in Fig. 3, Fig. 5, heavy copper circuit board 5 is formed with two positioning holes 51, respectively positioned at E-type magnetic ring 7
Two diagonal angles, accordingly, as shown in Fig. 4 b, Fig. 4 c, the bottom of support 4 is formed with the position of positioning hole 51 with heavy copper circuit board 5
Corresponding angle 41, support 4 and heavy copper circuit board 5 are fixed by angle 41 and the interference fit of positioning hole 51.Angle
41 can be formed directly on the framework of support 4, or as shown in fig. 4 a, increase intensity are formed with the inside corner of support 4
Leg block, angle 41 formed on leg block.In the present embodiment, positioning hole 51 and angle 41 use two, but
It is not limited thereto, according to circumstances can sets multiple with frame bottom around E-type magnetic ring, as long as ensureing two of which positioning
Hole is located at two diagonal angles of E-type magnetic ring respectively, as shown in Fig. 3, Fig. 4 c, can so ensure in heavy copper circuit board plane
XY both directions are spacing to E-type magnetic ring.
The caloric value of E-type magnetic ring 7 is big, it is necessary to be radiated by coldplate.In the present embodiment, coldplate is with cooled plate 9
Exemplified by, with a cavity (as shown in figure 3, non-label), E-type magnetic ring 7 is arranged in the cavity and is positioned and radiated, E-type magnetic
Heat-conducting pad 8 is provided between ring 7 and cooled plate 9.It is arranged on the heavy copper circuit board 5 that support 4 is interference fitted in cooled plate 9.
Cooled plate 9 is fixedly connected with an end cap 1, and the end cap has upward inner chamber, I types magnet ring 3, support 4, thick copper
Circuit board 5 and E-type magnetic ring 7 are encapsulated between end cap 1 and cooled plate 9, are buffered between I types magnet ring 3 and end cap 1 provided with silica gel foam
Layer 2, in the vertical direction is by controlling the decrement of silica gel foamed buffer layer 2 to be that E-type magnetic ring 7 and I types magnet ring 3 provide conjunction
Suitable thrust, can meet vibratory impulse requirement, be avoided that again and damage I types magnet ring 3 and E-type magnetic ring 7 by pressure.
In the present embodiment, support 4 uses plastic material, the flexible arc-like sheet of its internal injection, it is easy to manufacture, but
It is not limited to the material.
The present invention is described in detail above by specific embodiment, the embodiment is only the preferable of the present invention
Embodiment, it not limits the invention.Without departing from the principles of the present invention, those of ordinary skill in the art exist
Number and shape on the premise of creative work to the first flexible positioning piece and the second flexible positioning piece, support are not made
All other embodiment that shape etc. is obtained by modes such as any modification, equivalent substitution and improvements, is regarded as in the present invention
In the technology category protected.
Claims (11)
1. a kind of magnetic ring positioning construction based on heavy copper circuit board, including I type magnet rings（3）, heavy copper circuit board（5）, E-type magnetic ring
（7）, wherein E-type magnetic ring（7）Install on the cooling plate, heavy copper circuit board（5）It is formed with through hole（52）, E-type magnetic ring（7）Insert upwards
Mounted in heavy copper circuit board（5）Through hole（52）In and its top is prominent in heavy copper circuit board（5）Top, it is characterised in that described
Heavy copper circuit board（5）The upper support for installing a upper and lower opening（4）, the support（4）And heavy copper circuit board（5）Interference fit；It is described
Support（4）Inwall be formed with some first flexible positioning pieces and some second flexible positioning pieces, the E-type magnetic ring（7）It is prominent
Go out heavy copper circuit board（5）Part be located at support（4）It is interior and be stuck between the first flexible positioning piece, E-type magnetic ring（7）Centre dash forward
Rise partially below both sides jut, the I types magnet ring（3）Installed in E-type magnetic ring（7）Top and it is stuck in the second flexible positioning piece
Between.
2. the magnetic ring positioning construction according to claim 1 based on heavy copper circuit board, it is characterised in that the support（4）
Inwall be square.
3. the magnetic ring positioning construction according to claim 2 based on heavy copper circuit board, it is characterised in that first elasticity
Keeper is respectively formed in support（4）The middle and lower part of each medial surface.
4. the magnetic ring positioning construction according to claim 3 based on heavy copper circuit board, it is characterised in that the support（4）
Each medial surface be formed with two the second flexible positioning pieces, its respectively positioned at ipsilateral the first flexible positioning piece both sides.
5. the magnetic ring positioning construction based on heavy copper circuit board according to claim 1 or 2 or 3 or 4, it is characterised in that institute
The first flexible positioning piece is stated to upwarp arc-like sheet（42）, second flexible positioning piece be under curved arc-like sheet（43）.
6. the magnetic ring positioning construction according to claim 5 based on heavy copper circuit board, it is characterised in that the support（4）
Inwall be formed with some extension blocks（44）, each extension block（44）Medial surface be formed with one and upwarp arc-like sheet（42）.
7. the magnetic ring positioning construction according to claim 1 or 2 based on heavy copper circuit board, it is characterised in that the thick copper
Circuit board（5）It is formed with least two positioning holes（51）, two of which positioning hole（51）It is located at E-type magnetic ring respectively（7）Two couples
At angle；The support（4）Bottom be formed with and heavy copper circuit board（5）Positioning hole（51）The corresponding angle in position
（41）, support（4）And heavy copper circuit board（5）Pass through angle（41）And positioning hole（51）Interference fit is fixed.
8. the magnetic ring positioning construction according to claim 7 based on heavy copper circuit board, it is characterised in that the thick copper circuit
Plate（5）Positioning hole（51）And support（4）Angle（41）It is two.
9. the magnetic ring positioning construction according to claim 1 based on heavy copper circuit board, it is characterised in that the coldplate tool
There is accommodating E-type magnetic ring（7）Cavity, with support（4）The heavy copper circuit board of interference fit（5）Install on the cooling plate.
10. the magnetic ring positioning construction according to claim 9 based on heavy copper circuit board, it is characterised in that also including one end
Lid（1）, the end cap（1）It is fixedly connected with coldplate, the I types magnet ring（3）, support（4）, heavy copper circuit board（5）With E-type magnetic ring
（7）It is encapsulated in end cap（1）Between coldplate.
11. the magnetic ring positioning construction according to claim 10 based on heavy copper circuit board, it is characterised in that the I types magnetic
Ring（3）And end cap（1）Between be provided with silica gel foamed buffer layer（2）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410557184.1A CN104302106B (en) | 2014-10-20 | 2014-10-20 | Magnetic ring positioning construction based on heavy copper circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410557184.1A CN104302106B (en) | 2014-10-20 | 2014-10-20 | Magnetic ring positioning construction based on heavy copper circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104302106A CN104302106A (en) | 2015-01-21 |
| CN104302106B true CN104302106B (en) | 2017-08-25 |
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ID=52321602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410557184.1A Active CN104302106B (en) | 2014-10-20 | 2014-10-20 | Magnetic ring positioning construction based on heavy copper circuit board |
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| Country | Link |
|---|---|
| CN (1) | CN104302106B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2702463Y (en) * | 2004-03-23 | 2005-05-25 | 番禺得意精密电子工业有限公司 | Electric connector |
| CN200972990Y (en) * | 2006-10-25 | 2007-11-07 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| CN201041910Y (en) * | 2007-03-20 | 2008-03-26 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| CN201750024U (en) * | 2010-07-28 | 2011-02-16 | 昆山宏泽电子有限公司 | Signal transmission connector |
| CN103377805A (en) * | 2012-04-12 | 2013-10-30 | 松下电器产业株式会社 | Power converting transformer, vehicle headlight provided with the power converting transformer and motor vehicle provided with the headlight |
-
2014
- 2014-10-20 CN CN201410557184.1A patent/CN104302106B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2702463Y (en) * | 2004-03-23 | 2005-05-25 | 番禺得意精密电子工业有限公司 | Electric connector |
| CN200972990Y (en) * | 2006-10-25 | 2007-11-07 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| CN201041910Y (en) * | 2007-03-20 | 2008-03-26 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| CN201750024U (en) * | 2010-07-28 | 2011-02-16 | 昆山宏泽电子有限公司 | Signal transmission connector |
| CN103377805A (en) * | 2012-04-12 | 2013-10-30 | 松下电器产业株式会社 | Power converting transformer, vehicle headlight provided with the power converting transformer and motor vehicle provided with the headlight |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104302106A (en) | 2015-01-21 |
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