CN109979719A - Transformer device structure and its coil holder - Google Patents
Transformer device structure and its coil holder Download PDFInfo
- Publication number
- CN109979719A CN109979719A CN201711442308.1A CN201711442308A CN109979719A CN 109979719 A CN109979719 A CN 109979719A CN 201711442308 A CN201711442308 A CN 201711442308A CN 109979719 A CN109979719 A CN 109979719A
- Authority
- CN
- China
- Prior art keywords
- heat release
- release hole
- coil holder
- coil
- device structure
- Prior art date
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
Abstract
The invention discloses a kind of transformer device structures, include coil holder, coil and magnetic core.Coil holder has accommodation groove, heat release hole and two opposite openings.Heat release hole and two openings are all connected to accommodation groove, and heat release hole is between two openings.Coil is wound in coil holder and neighbouring heat release hole.Magnetic core wears opening and is located in accommodation groove, and the part accommodation groove between magnetic core and heat release hole forms heat dissipation gap.The invention also discloses a kind of coil holders of transformer.
Description
Technical field
The present invention about a kind of transformer device structure and its coil holder, especially a kind of transformer device structure with heat sinking function and
Its coil holder.
Background technique
With electronic product evolution and development, different electronic products need to be driven using different voltages.Transformer is
A kind of to be often used in the electronic component of adjustment voltage, power circuit, frequency changer circuit etc. are required using transformer to mention
Rise or reduce the voltage on circuit.General transformer includes first siding ring, second siding ring and the magnetic core mutually separated.Coil
It is wrapped on coil holder, and in magnetic core insertion coil holder.Changed using first siding ring current induced magnetic field, to excite secondary side
Coil generates the electromotive force of variation.
In order to reach the miniaturization of transformer to comply with the market demand of electronic product, the size of coil holder can contract as far as possible
The small overall volume to reduce transformer, this leads to the part magnetic core being located in coil holder and has temperature close to the part coil of magnetic core
Spend high problem.In order to solve the problems, such as that temperature is excessively high, generally magnetic core can be reduced using the additional cooling system help such as fan
With the temperature of coil.However, due to the miniaturization of transformer, so that the air-flow that fan generates is difficult to enter inside coil holder, because
And the effect for reducing magnetic core and coil temperature is unobvious.
Summary of the invention
In view of the above problems, the invention discloses a kind of transformer device structure and its coil holder, help to solve because of transformation
The miniaturization of device and lead to magnetic core and coil is difficult to the problem of radiating.
Transformer device structure disclosed in this invention includes a coil holder, a coil and a magnetic core.Coil holder have an accommodation groove,
An at least heat release hole and two opposite openings.Heat release hole and two openings are all connected to accommodation groove, and heat release hole is between two
Between a opening.Coil is wound in coil holder and neighbouring heat release hole.Magnetic core wears two openings and is located in accommodation groove, and between magnetic
Part accommodation groove between core and heat release hole forms a heat dissipation gap.
Transformer coil holder disclosed in this invention has a coil wiring portion.Coil wiring portion have a magnetic core accommodation groove,
An at least heat release hole and two openings.Two with opening opposite to each other, and heat release hole and two openings all connect with magnetic core accommodation groove
It is logical.Heat release hole is between two openings.
Disclosed transformer device structure and coil holder according to the present invention, coil holder have heat release hole, and when magnetic core is set to
There is heat dissipation gap when coil holder, between magnetic core and heat release hole.Whereby, the cooling air-flow flowed into heat dissipation gap can be taken away in magnetic core
The heat that the heart generates, and the heat that coil generates then is taken away via the heat release hole air-flow that is cooled, and help maintaining transformer knot
The radiating efficiency of magnetic core and coil is effectively promoted while structure minimizes.
Above is of the invention with explanation to demonstrate about the explanation of the content of present invention and the explanation of the following embodiments and the accompanying drawings
Spirit and principle, and patent application claims protection scope of the invention is provided and is further explained.
Detailed description of the invention
Fig. 1 is the perspective view according to the transformer device structure of first embodiment of the invention.
Fig. 2 is the exploded view of the transformer device structure of Fig. 1.
Fig. 3 is the perspective view of the coil holder of Fig. 2.
Sectional view of the transformer device structure along cutting line 4-4 that Fig. 4 is Fig. 1.
Fig. 5 is the top view of the transformer device structure of Fig. 1.
Fig. 6 is the exploded view according to the transformer device structure of second embodiment of the invention.
Fig. 7 is the perspective view of the coil holder of Fig. 6.
Wherein, appended drawing reference:
1,1 " transformer device structure
10,10 " coil holder
110 pedestals
111 airspaces
112 air inlets
113 first trunkings
114 second trunkings
120,120 " winding section
121 accommodation grooves
122 openings
123 heat release holes
124 heat dissipation gaps
130 flanges
131 notches
140 limited blocks
20 coil groups
210 first coils
220 second coils
30 magnetic core groups
310 magnetic cores
311 central parts
312 ends
313 sides
A, B cooling air-flow
D spacing
S1, S2 distance
Specific embodiment
Describe detailed features and advantage of the invention in detail in embodiments below, content is enough to make any ability
The technical staff in domain understands technology contents of the invention and implements accordingly, and is wanted according to content disclosed in this specification, right
Protection scope and attached drawing are asked, any those skilled in the art can be readily understood upon the relevant purpose of the present invention and advantage.Below
The embodiment viewpoint that present invention be described in more detail, but it is non-anyways to limit scope of the invention.
Referring to Fig. 1 to Fig. 3.Fig. 1 is the perspective view according to the transformer device structure of first embodiment of the invention.Fig. 2
For the exploded view of the transformer device structure of Fig. 1.Fig. 3 is the perspective view of the coil holder of Fig. 2.In the present embodiment, transformer device structure 1 includes
One coil holder 10, a coil group 20 and a magnetic core group 30.
Coil holder 10 includes a connected pedestal 110, a winding section (coil wiring portion) 120 and a flange 130.Pedestal
110 are located at the opposite end of winding section 120 with flange 130, and flange 130 is around winding section 120.Pedestal 110 has one
Airspace 111 and two air inlets 112.Two air inlets 112 are located at the opposite sides of pedestal 110 and empty with ventilation
Between 111 connection.Pedestal 110 is mountable to circuit board (not shown).Winding section 120 has an accommodation groove (magnetic core accommodation groove)
121, two openings 122 and multiple heat release holes 123.The two openings 122 and these heat release holes 123 all connect with accommodation groove 121
It is logical, and heat release hole 123 is between two openings 122.The two openings 122 are located at the opposite end of winding section 120, and
Accommodation groove 121 is connected to via one of opening 122 with the airspace 111 of pedestal 110.Part heat release hole 123 is located at coiling
The side (front side) in portion 120, and another part heat release hole 123 is located at the opposite other side (rear side) of winding section 120.Pedestal 110
112 quantity of air inlet and winding section 120 123 quantity of heat release hole it is all non-to limit the present invention.
Coil group 20 includes to be wound in the first coil 210 and one second coil 220 of the winding section 120 of coil holder 10.
First coil 210 and the second coil 220 are adjacent to heat release hole 123.In the present embodiment, first coil 210 is used as transformer device structure 1
Primary side (i.e. voltage input side, primary side), and the second coil 220 is (i.e. electric as the secondary side of transformer device structure 1
Press outlet side, secondary side).
Magnetic core group 30 includes two magnetic cores 310.Please with reference to Fig. 4 and Fig. 5.Fig. 4 is the transformer device structure of Fig. 1 along cutting
The sectional view of line 4-4.Fig. 5 is the top view of the transformer device structure of Fig. 1.Each magnetic core 310 include a connected central part 311,
One end 312 and two sides 313.End 312 is located at one end of central part 311, and two sides 313 are located at end
312 opposite sides, and central part 311 is between two sides 313.The two respective central part 311 of magnetic core 310 difference
It wears two openings 122 of coil holder 10 and is located in accommodation groove 121, and between the central part of magnetic core 310 311 and heat release hole 123
Between part accommodation groove 121 formed one heat dissipation gap 124.The end 312 of one of magnetic core 310 is located at the logical of pedestal 110
It is revealed in outside in wind space 111 and via air inlet 112, there is no other elements between this end 312 and air inlet 112 to enable
Stop, and then outer gas stream can enter airspace 111 from air inlet 112 and directly arrive to the side of end 312.
Heat dissipation gap 124 and airspace 111 help to promote the radiating efficiency of coil group 20 and magnetic core group 30.Such as Fig. 4
It is shown, when the cooling air-flow A that external device (ED) (such as fan, be not shown in the figure) generates enters airspace 111, magnetic core
The side of 310 end 312 is as windward side, so that cooling air-flow A can change direction of travel after striking end 312, in turn
It is flowed into heat dissipation gap 124 from the opening 122 of 10 lower section of coil holder.It can be with thermal convection by the cooling air-flow A in gap 124 of radiating
Mode takes away the heat that the central part 311 of magnetic core 310 generates.In addition to this, the heat that first coil 210 and the second coil 220 generate
The air-flow A that can be cooled in a manner of thermal convection via heat release hole 123 takes away.
The end 312 of magnetic core 310 is changed the direction of travel of cooling air-flow A, but this hair by the present embodiment as windward side
It is bright to be not limited thereto.In other embodiments, a part of coil holder itself may extend in airspace and as a water conservancy diversion
Portion uses, and the air-flow for entering airspace is enabled to strike this diversion division and change direction of travel.
As shown in Figures 3 to 5, in the present embodiment, the pedestal 110 of coil holder 10 more there are two the first trunking 113 with
Two the second trunkings 114.Two the first trunkings 113 are between two the second trunkings 114, and the two first lineations
The distance between slot 113 S1 is greater than between first trunking of one of them adjacent 113 and one of them second trunking 114
Distance S2.In addition, the flange 130 of coil holder 10 has two opposite notches 131.One of notch 131 and part heat release hole
123 are all located at the front side of coil holder 10, and another notch 131 and another part heat release hole 123 are all located at the rear side of coil holder 10.By
This has biggish gap compared to existing transformer device structure between two the first trunkings 113, and makes a cooling air-flow B
It can be by passing through notch 131, the first coil 210 being now placed on cooling air-flow B travel path and the second line behind this gap again
The heat air-flow B that can be cooled caused by circle 220 takes away, further improving heat radiation efficiency.The present embodiment is in coil holder 10 with respect to two
All there are heat release hole 123 and notch 131 in side, but the present invention is not limited thereto.In other embodiments, coil holder is only in side meeting
There are heat release hole and notch.
The coil holder 10 of the present embodiment and makes magnetic core by one of them size in the radial direction of adjustment winding section 120
310 can form heat dissipation gap 124 when being inserted in coil holder 10.However, since the radial dimension of accommodation groove 121 does not match magnetic core
The radial dimension of 310 central part 311 so magnetic core 310 may generate displacement because of External force interference, and then causes to radiate
Gap 124 becomes smaller.Said circumstances occur in order to prevent, and as shown in Figure 4 and Figure 5, the coil holder 10 of the present embodiment is further included positioned at convex
Multiple limited blocks 140 of edge 130, and limited block 140 is prominent towards one of magnetic core 310.Whereby, limited block 140 can be tieed up
Hold the size in heat dissipation gap 124, i.e. space D between maintenance heat release hole 123 and central part 311.Preferably, heat dissipation gap 124
Size (space D) maintain 2.0 millimeters (mm) to 3.0 centimetres, the miniaturization of transformer device structure 1 can be taken into account and possessed good
Radiating efficiency.The quantity of limited block 140 is not intended to limit the invention.In addition, limited block 140 is located at the configuration of flange 130
It is non-to limit the present invention.In other embodiments, limited block is in the accommodation groove of winding section.
The winding section 120 of the coil holder 10 of the present embodiment has heat release hole 123 to help coil group 20 to radiate with magnetic core group 30,
But the structural strength of winding section 120 may be influenced by opening up heat release hole 123.Said circumstances occur in order to prevent, such as Fig. 3 and Fig. 4 institute
Show, each heat release hole 123 of the present embodiment is all the long hole that length direction is parallel to the axial direction of winding section 120, to slow down
Influence of the heat release hole 123 to 120 structural strength of winding section, thus the coil holder 10 with high opening rate still has enough structural strengths
To bear the weight of magnetic core 310.
The winding section 120 of first embodiment has the hollow, rectangular column of aperture in external form for one side wall, but the present invention is simultaneously
It is not limited.Please refer to Fig. 6 and Fig. 7.Fig. 6 is the exploded view according to the transformer device structure of second embodiment of the invention.Fig. 7 is
The perspective view of the coil holder of Fig. 6.Since second embodiment is similar with first embodiment, therefore deviation is illustrated below.
In the present embodiment, transformer device structure 1 " includes coil holder 10 ", coil group 20 and magnetic core group 30.Coil holder 10 " around
The external form in line portion 120 " is hollow cylindroid.Hollow cylindroid cross section is ellipse, and in the long axis of this elliptic cross-section
On direction, the heat release hole 123 of coil holder 10 " is located at the opposite sides of winding section 120 ".
In conclusion transformer device structure disclosed in this invention and coil holder, the side wall of coil holder has heat release hole, and works as magnetic
There is heat dissipation gap when core is set to coil holder, between magnetic core and heat release hole.Whereby, the cooling air-flow flowed into heat dissipation gap can be with
The mode of thermal convection take away core center generation heat, and coil generate heat then via heat release hole in a manner of thermal convection quilt
Cooling air-flow is taken away, and facilitates the heat dissipation effect that magnetic core and coil are effectively promoted while maintaining transformer device structure miniaturization
Rate.
Claims (10)
1. a kind of transformer device structure, which is characterized in that the transformer device structure includes:
One coil holder, with an accommodation groove, at least a heat release hole and opposite two openings, an at least heat release hole and this two
Opening is all connected to the accommodation groove, and an at least heat release hole is between this two openings；
One coil is wound in the coil holder and a neighbouring at least heat release hole；And
One magnetic core wears this two openings and is located in the accommodation groove, and between the magnetic core and an at least heat release hole
Partially the accommodation groove forms a heat dissipation gap.
2. transformer device structure as described in claim 1, which is characterized in that the coil holder includes connected a pedestal and a coiling
Portion, the coil are wound in the winding section, the pedestal have an airspace, the winding section have the accommodation groove, this at least one dissipate
Hot hole and this two openings, the accommodation groove are connected to via wherein one opening with the airspace, which includes to be connected
One central part and one end, the central part wear this two openings and are located in the accommodation groove, and the heat dissipation gap is in this
Between center portion and an at least heat release hole, and the end is located in the airspace.
3. transformer device structure as claimed in claim 2, which is characterized in that the pedestal has more one be connected to the airspace
Air inlet, and the end is revealed in outside via the air inlet.
4. transformer device structure as claimed in claim 2, which is characterized in that there are two the first trunking and two for pedestal tool
Two trunkings, two first trunkings between two second trunkings, and between two first trunkings away from
From greater than adjacent wherein one first trunking and wherein the distance between one second trunking.
5. transformer device structure as described in claim 1, which is characterized in that the coil holder includes connected a flange and a coiling
Portion, the coil are wound in the winding section, which has the accommodation groove, an at least heat release hole and this two openings, should
Flange has a notch, and an at least heat release hole and the notch are located at the same side of the coil holder.
6. transformer device structure as claimed in claim 5, which is characterized in that the coil holder further includes a limited block, the limited block position
In the flange or the winding section, and the limited block protrudes the size to maintain the heat dissipation gap towards the magnetic core.
7. transformer device structure as described in claim 1, which is characterized in that the quantity of an at least heat release hole is multiple, and should
A little heat release holes are located at the opposite sides of the coil holder.
8. transformer device structure as described in claim 1, which is characterized in that an at least heat release hole is that length direction is parallel to this
The long hole of the axial direction of coil holder.
9. transformer device structure as described in claim 1, which is characterized in that the heat dissipation gap is 2.0 millimeters to 3.0 centimetres.
10. a kind of coil holder of transformer, which is characterized in that the coil holder has a coil wiring portion, which has one
Magnetic core accommodation groove, at least a heat release hole and two openings, this two with opening opposite to each other, an at least heat release hole and this two
Opening is all connected to the magnetic core accommodation groove, and an at least heat release hole is between this two openings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711442308.1A CN109979719A (en) | 2017-12-27 | 2017-12-27 | Transformer device structure and its coil holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711442308.1A CN109979719A (en) | 2017-12-27 | 2017-12-27 | Transformer device structure and its coil holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109979719A true CN109979719A (en) | 2019-07-05 |
Family
ID=67072380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711442308.1A Pending CN109979719A (en) | 2017-12-27 | 2017-12-27 | Transformer device structure and its coil holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109979719A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2089764A (en) * | 1980-11-25 | 1982-06-30 | Legrand Sa | Coil former for transformer |
| CN201336210Y (en) * | 2008-12-19 | 2009-10-28 | 东莞创慈磁性元件有限公司 | Embedded-type heat-dissipating voltage transformer |
| CN102543391A (en) * | 2010-12-22 | 2012-07-04 | 台达电子工业股份有限公司 | Transformer structure |
| CN102623143A (en) * | 2011-01-28 | 2012-08-01 | 李钟学 | High-voltage transformer having ventilation duct for microwave oven |
| CN104347245A (en) * | 2014-04-17 | 2015-02-11 | 昱京科技股份有限公司 | Wire rack structure with coupling adjusting wire slot |
| CN104838457A (en) * | 2012-12-05 | 2015-08-12 | 特斯拉汽车公司 | Bobbin design for conduction-cooled, gapped, high-permeability magnetic components |
| CN205828105U (en) * | 2016-07-29 | 2016-12-21 | 东莞市立宇电子有限公司 | A kind of vertical transformer skeleton |
-
2017
- 2017-12-27 CN CN201711442308.1A patent/CN109979719A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2089764A (en) * | 1980-11-25 | 1982-06-30 | Legrand Sa | Coil former for transformer |
| CN201336210Y (en) * | 2008-12-19 | 2009-10-28 | 东莞创慈磁性元件有限公司 | Embedded-type heat-dissipating voltage transformer |
| CN102543391A (en) * | 2010-12-22 | 2012-07-04 | 台达电子工业股份有限公司 | Transformer structure |
| CN102623143A (en) * | 2011-01-28 | 2012-08-01 | 李钟学 | High-voltage transformer having ventilation duct for microwave oven |
| CN104838457A (en) * | 2012-12-05 | 2015-08-12 | 特斯拉汽车公司 | Bobbin design for conduction-cooled, gapped, high-permeability magnetic components |
| CN104347245A (en) * | 2014-04-17 | 2015-02-11 | 昱京科技股份有限公司 | Wire rack structure with coupling adjusting wire slot |
| US20150302978A1 (en) * | 2014-04-17 | 2015-10-22 | Yujing Technology Co., Ltd. | Bobbin structure with winding grooves for adjusting coupling |
| CN205828105U (en) * | 2016-07-29 | 2016-12-21 | 东莞市立宇电子有限公司 | A kind of vertical transformer skeleton |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190705 |
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