CN204390863U - The inductance of a kind of Based PC B or device for transformer - Google Patents
The inductance of a kind of Based PC B or device for transformer Download PDFInfo
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- CN204390863U CN204390863U CN201520131777.1U CN201520131777U CN204390863U CN 204390863 U CN204390863 U CN 204390863U CN 201520131777 U CN201520131777 U CN 201520131777U CN 204390863 U CN204390863 U CN 204390863U
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Abstract
The utility model discloses inductance or the device for transformer of a kind of Based PC B, comprise inductance or the Transformer Winding of PCB making, connect pad by setting series and parallel, the series and parallel of winding can be completed easily, if adopt copper coin to do vice-side winding, be then more suitable for low-voltage, high-current application.The utility model has with material is less, volume is little, resistance is little, loss is low, rate of finished products is high, the advantage of low cost of manufacture, and its scope of application is wider.
Description
Technical field
The utility model relates to inductance or the device for transformer group structure of a kind of Based PC B.
Background technology
Due to the development that power semiconductor technologies is at full speed, single power electric switch device frequency, electric current and voltage are rapidly promoted, in all kinds of high-current switch application of power, input at high voltage, low-voltage output or low-voltage input, when high voltage exports, volt/the number of turn calculated due to transformer is actual part, this just requires under identical window considerations, around the lower more number of turn, and electric current is constant, existing PCB winding method, can not do connection in series-parallel very easily to connect, when causing electric current identical, the number of turn or turn ratio can not be done very large.
Utility model content
The purpose of this utility model is for prior art above shortcomings, the inductance of a kind of PCB, transformer series and parallel winding construction are provided, it has with material is less, volume is little, resistance is little, loss is low, rate of finished products is high, the advantage of low cost of manufacture, and its scope of application is wider.
For achieving the above object, the inductance of PCB of the present utility model, transformer series and parallel winding construction, comprise the secondary above magnetic core of PCB and of more than a slice, PCB comprises the metal carbonyl conducting layer and insulated substrate that are connected successively, metal carbonyl conducting layer comprises the conducting metal wire of more than a group, is respectively equipped with two series wiring pads on PCB winding connection end two sides, when needing to be connected in series, by this pad, second winding can be connected to easily.In the both sides of series wiring, being provided with two o pads of winding, being provided with winding switching pad in centre, is also reserved centre cap;
As further improvement of the utility model, in the side of symmetry, be provided with four and connect pad accordingly, when making transformer, former and deputy limit is all PCB winding, can be connected to lower one deck easily, and not need other connection material;
As further improvement of the utility model, during vice-side winding copper coin, be particularly suitable for low-voltage, high-current;
As follows:
The inductance of Based PC B or a device for transformer, comprise at least two two-sided spiral pcb boards, and the A face of described two-sided spiral pcb board comprises the first layers of copper, and the another side B face of described two-sided spiral pcb board comprises the second layers of copper;
Upper in the first layers of copper, comprise the first spiral Copper Foil, pad P_2A is drawn, in the first spiral Copper Foil helix centre in the peripheral position second of the first spiral Copper Foil helix, comprise connecting through hole H_4AB, described connecting through hole is electrically connected with the spiral Copper Foil of the second layers of copper with the first layers of copper;
Comprise the second spiral Copper Foil in the second layers of copper, the peripheral position of the second spiral Copper Foil helix comprises the second extraction pad P_2B;
First spiral Copper Foil of A surface helix shape and the second spiral Copper Foil of B surface helix shape form the inductor winding that PCB makes, second draws pad P_2B or P_2A can be connected in series with the second pad P_2B or P_2A of other two-sided spiral pcb board, during series connection, two-sided spiral pcb board overlap is placed, second pad P_2B of serial connection or the second pad P_2A is just in time relatively corresponding to be placed, and is insulating material between Copper Foil;
The center of two-sided spiral pcb board, comprises a hollow opening, and described hollow opening is for placing magnetic core.
Conveniently draw line, simultaneously UNICOM A face and B face, on the A face of pcb board, described connecting through hole H_4AB has and connects pad P_4A;
On the B face of pcb board, described connecting through hole H_4AB has and connects pad P_4B;
Described connection pad P_4B can as centre tap.
Time as transformer, described two-sided spiral pcb board is divided at least two groups, and described grouping comprises at least one primary coil group and secondary coil group, and described spirality layers of copper forms circle group winding;
Often organize at least one piece of two-sided spiral pcb board, two-sided spiral pcb board of each group by draw pad P_2B or P_2A and mutually connect or by pad 1 and pad 3 in parallel.
In as transformer, if secondary coil requires coil, quantity is little, can be connected in parallel, and is connected in parallel the ability to bear that can increase electric current.
The two-sided spiral pcb board of polylith in secondary coil group in grouping is for being connected in parallel, and it is also in parallel that the centre tap in secondary coil group connects pad P_4A or P_4B, further reduces the number of turns of coil.
When doing transformer purposes, if the wire circle of secondary or elementary requirement is few, can adopts two U-shaped Copper Foil series connection or parallel connection, forming coil, therefore with two pieces of U-shaped pcb boards, the U-shaped Copper Foil on U-shaped pcb board can be connected or parallel connection;
The U-shaped pcb board of more than two pieces, U-shaped pcb board comprises a hollow opening, and hollow opening is for placing magnetic core, and U-shaped pcb board comprises front and reverse side, and at least one side places Copper Foil;
Copper Foil is U-shaped Copper Foil, and U-shaped Copper Foil has middle seam by central opening to outer rim, and U-shaped Copper Foil is divided into U-shaped openend one and U-shaped openend two, U-shaped openend one is positioned at marginal position, and U-shaped openend two is positioned at center;
U-shaped openend one comprises attachment screw hole one; U-shaped openend two comprises attachment screw hole two;
Two pieces of U-shaped pcb boards are one group, the front of two pieces of U-shaped pcb boards wherein front of a piece and another block is just to placement, the U-shaped openend two of described two pieces of U-shaped pcb boards is just in time overlapping, is electrically connected by described attachment screw hole two, and the U-shaped Copper Foil of two pieces of U-shaped pcb boards forms inductor winding.
For the ease of drawing Copper Foil, particularly be caught in the middle the electrical connection of the Copper Foil of layer, in the first layers of copper of above-mentioned two-sided spiral pcb board, comprise the first layers of copper first and draw pad P_1A, inner at pad P_1A, comprise connecting through hole H_1AB, draw pad P_1A and be not electrically connected with described first spiral Copper Foil; At the second spiral Copper Foil of the second above-mentioned layers of copper, comprise the first extraction pad P_1B, pad P_1B is electrically connected by connecting through hole H_1AB with pad P_1A, also can draw the signal of telecommunication of B face Copper Foil like this in A face.
In order to install the two-sided spiral pcb board of fastening polylith, in the first above-mentioned layers of copper, comprise the fastening pad P_6A of the first layers of copper, inner at pad P_6A, comprise connecting through hole H_6AB, draw pad P_6A and be not electrically connected with described first spiral Copper Foil;
At the second spiral Copper Foil of the second above-mentioned layers of copper, comprise fastening pad P_6B, pad P_6B is electrically connected by connecting through hole H_6AB with pad P_6A, draws pad P_6B and is not electrically connected with described second spiral Copper Foil.
In sum, the utility model has with material is less, volume is little, resistance is little, loss is low, rate of finished products is high, the advantage of low cost of manufacture, and its scope of application is wider.
Accompanying drawing explanation
Figure 1A is preferred embodiment two-sided spiral pcb board winding schematic diagram.
Figure 1B is preferred embodiment two-sided spiral pcb board winding A face structure chart.
Fig. 2 is preferred embodiment two-sided spiral pcb board winding B face structure chart.
Fig. 3 is preferred embodiment two-sided spiral pcb board inductor winding schematic diagram.
Fig. 4 is preferred embodiment two-sided spiral pcb board inductor winding structure chart.
Fig. 5 A is preferred embodiment transformer primary, secondary is all two-sided spiral pcb board winding schematic diagram.
Fig. 5 B is preferred embodiment transformer primary, secondary is all two-sided spiral pcb board winding schematic diagram.
Fig. 6 is preferred embodiment transformer primary, secondary is all two-sided spiral pcb board winding construction figure.
Fig. 7 is preferred embodiment U-shaped pcb board winding schematic diagram.
Fig. 8 is preferred embodiment U-shaped pcb board winding construction figure.
Fig. 9 is preferred embodiment transformer primary side two-sided spiral pcb board winding secondary U-shaped PCB winding schematic diagram.
Figure 10 is preferred embodiment transformer primary side two-sided spiral pcb board winding secondary U-shaped PCB winding construction figure.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail to (example is for double-deck 3 circle windings; other is similar); the utility model does not need the two sides overlapping of connection; insulating varnish or other insulating material are all set; the present embodiment is not limited to the utility model; every employing analog structure of the present utility model and similar change thereof, all should list protection range of the present utility model in.
As shown in Figure 1A, the inductance of this Based PC B or device for transformer group structure, 2A and 2B is winding two ends, 4A and 4B links together, and is connected on centre cap.
Object construction as shown in Figure 2 and Figure 3, the inductance of this Based PC B or device for transformer group structure, comprise the metal carbonyl conducting layer and insulated substrate that are connected successively, metal carbonyl conducting layer comprises the conducting metal wire of one group of three circle, it is characterized in that: be respectively equipped with the 2A in two series wiring pad P_2A correspondence principle Figure 1A and the 2B in pad P_2B correspondence principle Figure 1A at PCB winding connection end two sides intermediate symmetrical position, insulation is had in the middle of pad P_2A and pad P_2B, directly be not connected, at upper and lower center, like this when being connected in series, wherein the pad P_2B of a slice pad P_2A and other a slice overlaps completely, by welding, easily be connected to other sheet winding.In the both sides up and down of series wiring, be provided with two o pads P_1A and the pad P_3A of winding, pad P_1A, P_1B, H_31B are directly communicated with pad P_2B, pad P_3A, P_3B, H_3AB are directly communicated with pad P_2A, being provided with winding switching pad P_4A in centre, is also reserved centre cap.In the side of symmetry, be provided with four corresponding pads that connect and be respectively pad P_5A, pad P_6A, pad P_7A and pad P_8A, when doing inductance, can fix and location hole, do Transformer Winding, when former and deputy limit is all PCB winding, lower one deck can be connected to easily, and need other connection material;
As Figure 1B and Fig. 2, be A face and the B face of a pair of surface helix pcb board, A face comprises the first layers of copper 101, and the another side B face of described two-sided spiral pcb board comprises the second layers of copper 111;
Upper in the first layers of copper, comprise the peripheral position second of the first spiral Copper Foil 102, first spiral Copper Foil helix and draw pad P_2A, in the first spiral Copper Foil helix centre, comprise connecting through hole H_4AB, described connecting through hole is electrically connected with the spiral Copper Foil of the second layers of copper with the first layers of copper;
Comprise the peripheral position of the second spiral Copper Foil 112, second spiral Copper Foil helix in the second layers of copper and comprise the second extraction pad P_2B;
First spiral Copper Foil of A surface helix shape and the second spiral Copper Foil of B surface helix shape form the inductor winding that PCB makes, second draws pad P_2B or P_2A can be connected in series with the second pad P_2B or P_2A of other two-sided spiral pcb board, during series connection, two-sided spiral pcb board overlap is placed, and the second pad P_2B of serial connection or the second pad P_2A is just in time relatively corresponding to be placed;
The center of two-sided spiral pcb board, comprises a hollow opening, and as the perforate of figure magnetic core center pillar, described hollow opening is for placing magnetic core.
Conveniently draw line, simultaneously UNICOM A face and B face, on the A face of pcb board, described connecting through hole H_4AB has and connects pad P_4A;
On the B face of pcb board, described connecting through hole H_4AB has and connects pad P_4B;
Described connection pad P_4B can as centre tap.
For the ease of drawing Copper Foil, particularly be caught in the middle the electrical connection of the Copper Foil of layer, in the first layers of copper of above-mentioned two-sided spiral pcb board, comprise the first layers of copper first and draw pad P_1A, inner at pad P_1A, comprise connecting through hole H_1AB, draw pad P_1A and be not electrically connected with described first spiral Copper Foil; At the second spiral Copper Foil of the second above-mentioned layers of copper, comprise the first extraction pad P_1B, pad P_1B is electrically connected by connecting through hole H_1AB with pad P_1A, also can draw the signal of telecommunication of B face Copper Foil like this in A face.
In order to install the two-sided spiral pcb board of fastening polylith, in the first above-mentioned layers of copper, comprise the fastening pad P_6A of the first layers of copper, inner at pad P_6A, comprise connecting through hole H_6AB, draw pad P_6A and be not electrically connected with described first spiral Copper Foil;
At the second spiral Copper Foil of the second above-mentioned layers of copper, comprise fastening pad P_6B, pad P_6B is electrically connected by connecting through hole H_6AB with pad P_6A, draws pad P_6B and is not electrically connected with described second spiral Copper Foil.
Be illustrated in figure 3 preferred embodiment two-sided spiral pcb board inductor winding application principle figure.Three windings, by being composed in series the inductance of 18 circles.Object construction as shown in Figure 4, when doing inductor winding, the pad 3 (2A) in inductance 1 winding A face, do one end of inductance input, inductance 1 winding B face pad 2B is welded on inductance 2 winding pad 2A, inductance 2 winding pad 2B is welded on inductor winding 3A, inductance 3 winding B face pad 1 (2B), does the other end that inductance exports.
Time as transformer, described two-sided spiral pcb board is divided at least two groups, and described grouping comprises at least one primary coil group and secondary coil group, and described spirality layers of copper forms circle group winding;
Often organize at least one piece of two-sided spiral pcb board, two-sided spiral pcb board of each group by draw pad P_2B or P_2A connects mutually or P_2B or P_2A connects extraction pad 1 and pad 3 in parallel and draw, respectively as shown in Fig. 5 A and Fig. 5 B.
As shown in Figure 5A, the inductance of this Based PC B or device for transformer group structure, transformer primary, secondary are all the transformer of PCB winding; As Fig. 5 A, the transformer primary side number of turn is connected, and the secondary number of turn is connected, and transformer primary side forms 18 circles, and transformer secondary forms 12 circles, a transformer of composition 3:2;
As Fig. 5 B, transformer primary side forms 18 circles, and transformer secondary two groups is in parallel, forms 3+3 winding, then forms the all-wave output transformer pattern of 6:1+1;
Object construction as shown in Figure 6, form pattern as shown in Figure 5A, the pad 3 in transformer primary side 1 winding A face, do one end of transformer primary side input, transformer primary side 1 winding B face pad 2B is by transformer secondary 1 winding pad 7 welding transformer former limit 2 winding pad 2A, transformer primary side 2 winding pad 2B is by transformer secondary 2 winding pad 7 welding transformer former limit 3 winding pad 2A, transformer primary side 3 winding pad 1 does the other end of transformer primary side input, transformer primary side 1 winding pad 6 is communicated with transformer secondary 1 winding 3 pad, do one end that transformer exports, transformer secondary 1 winding pad 2B is by transformer primary side 2 winding pad 7 welding transformer secondary 2 winding pad 2A, transformer secondary 2 winding pad 1 is by transformer primary side 3 winding pad 8, do the other end that transformer exports,
In as transformer, if secondary coil requires coil, quantity is little, can be connected in parallel, and is connected in parallel the ability to bear that can increase electric current.
The two-sided spiral pcb board of polylith in secondary coil group in grouping is for being connected in parallel, and it is also in parallel that the centre tap in secondary coil group connects pad P_4A or P_4B, further reduces the number of turns of coil.
As shown in Figure 6, form pattern as shown in Figure 5 B, transformer primary side connects same as Fig. 5 B mode, transformer secondary connects, transformer primary side 1 winding pad 6, transformer secondary 1 winding pad 3, transformer primary side 2 winding pad 6, transformer secondary 2 winding pad 3, transformer primary side 1 winding pad 6, all weld together, do one end that transformer secondary exports, transformer primary side 1 winding pad 5, transformer secondary 1 winding pad 4, transformer primary side 2 winding pad 5, transformer secondary 2 winding pad 4, transformer primary side 3 winding pad 5, weld together, do the centre cap that transformer secondary exports, transformer primary side 1 winding pad 8, transformer secondary 1 winding pad 1, transformer primary side 2 winding pad 8, transformer secondary 2 winding pad 1, transformer primary side 3 winding pad 8, all weld together, do the other end that transformer secondary exports.
When doing transformer purposes, if the wire circle of secondary or elementary requirement is few, can adopts two U-shaped Copper Foil series connection, forming coil, therefore with two pieces of U-shaped pcb boards, the U-shaped Copper Foil on U-shaped pcb board can be connected;
As shown in Figure 7, the inductance of this Based PC B or device for transformer group structure, transformer secondary is a circle copper coin principle;
The U-shaped pcb board of more than two pieces, U-shaped pcb board comprises a hollow opening, and hollow opening is for placing magnetic core, and U-shaped pcb board comprises front and reverse side, and at least one side places Copper Foil;
Object construction as shown in Figure 8, is provided with magnetic core perforate in the middle of copperplate winding, and have a cut-out sideling in the middle of on the right side of copperplate winding, on the right side of copperplate winding, top is output 1, and being provided with two crimping screws, is copperplate winding centre cap in the middle of right side.
Object construction as shown in Figure 8, magnetic core perforate is provided with in the middle of copperplate winding, Copper Foil is U-shaped Copper Foil, U-shaped Copper Foil has middle seam by central opening to outer rim, a cut-out is sideling had in the middle of right side, be divided into by U-shaped Copper Foil in U-shaped openend one i.e. figure and export tap terminals 2 in output 1 and U-shaped openend two i.e. figure, U-shaped openend one is positioned at marginal position, and U-shaped openend two is positioned at center;
U-shaped openend one comprises and connects set screw hole one; U-shaped openend two comprises attachment screw hole two;
Two pieces of U-shaped pcb boards are one group, the front of two pieces of U-shaped pcb boards wherein front of a piece and another block is just to placement, the U-shaped openend two of described two pieces of U-shaped pcb boards is just in time overlapping, is electrically connected by described attachment screw hole two, and the U-shaped Copper Foil of two pieces of U-shaped pcb boards forms inductor winding.
As shown in Figure 9, the inductance of this Based PC B or device for transformer group structure, transformer primary side composition cascaded structure, transformer secondary comprises two pieces of U-shaped pcb boards, the centre tapped 1 circle structure of composition band, transformer voltage ratio is 18:1+1, object construction as shown in Figure 10, the pad 3 in transformer primary side 1 winding A face, do one end of transformer primary side input, transformer primary side 1 winding B face pad 2B (exports copperplate winding less than former limit by scolding tin or metallic stuffing welding transformer former limit 2 winding pad 2A, then directly can fill welding), transformer primary side 2 winding pad 2B is by scolding tin or metallic stuffing welding transformer former limit 3 winding pad 2A, transformer primary side 3 winding pad 1 does the other end of transformer primary side input, transformer secondary 3 winding 1 end (stretches out transformer primary side 4, 5, outside 6 windings) do transformer secondary winding one end, transformer secondary 3 winding 2 side pressure connects transformer secondary 4 winding 2 end, do transformer center tap, transformer secondary 4 winding 2 end does the transformer secondary winding other end (multi-disc vice-side winding structure, multiplely to superpose).
Above execution mode only have expressed the preferred embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention; It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention; Therefore, all equivalents of doing with the claims in the present invention scope and modification, all should belong to the covering scope of the claims in the present invention.
Claims (7)
1. the inductance of a Based PC B or device for transformer, it is characterized in that, comprise at least two two-sided spiral pcb boards, the A face of described two-sided spiral pcb board comprises the first layers of copper (101), and the another side B face of described two-sided spiral pcb board comprises the second layers of copper (111);
Upper in the first described layers of copper, comprise the first spiral Copper Foil (102), pad (P_2A) is drawn at the peripheral position second of first spiral Copper Foil helix, in the first spiral Copper Foil helix centre, comprise connecting through hole (H_4AB), described connecting through hole is electrically connected with the spiral Copper Foil of the second layers of copper with the first layers of copper;
Comprise the second spiral Copper Foil in the second described layers of copper, the peripheral position of the second spiral Copper Foil helix comprises the second extraction pad (P_2B);
First spiral Copper Foil of described A surface helix shape and the second spiral Copper Foil of B surface helix shape form the inductor winding that PCB makes, described second draws pad (P_2B) or (P_2A) can be connected in series with second pad (P_2B) of other two-sided spiral pcb board or (P_2A), during series connection, two-sided spiral pcb board overlap is placed, be insulating material between Copper Foil, second pad (P_2B) of serial connection or the second pad (P_2A) are just in time relatively corresponding to be placed;
The center of described two-sided spiral pcb board, comprises a hollow opening, and described hollow opening is for placing magnetic core.
2. the inductance of Based PC B or device for transformer as claimed in claim 1, is characterized in that:
On the A face of pcb board, described connecting through hole (H_4AB) there is connection pad (P_4A);
On the B face of pcb board, described connecting through hole (H_4AB) there is connection pad (P_4B);
Described connection pad (P_4B) can as centre tap.
3., as claim 1 or right will impose inductance or the device for transformer of Based PC B as described in 2, it is characterized in that:
Described two-sided spiral pcb board is divided at least two groups, and described grouping comprises at least one primary coil group and secondary coil group, and described spirality layers of copper forms circle group winding;
Often organize at least one piece of two-sided spiral pcb board, the two-sided spiral pcb board of each group is each other in series or parallel by drawing pad (P_2B) or (P_2A).
4. the inductance of Based PC B or device for transformer as claimed in claim 3, is characterized in that:
The two-sided spiral pcb board of polylith in secondary coil group in described grouping is for being connected in parallel, and it is also in parallel that the centre tap in described secondary coil group connects pad (P_4A) or (P_4B).
5., as claim 1 or right will impose inductance or the device for transformer of Based PC B as described in 2, it is characterized in that:
Also comprise the U-shaped pcb board of more than two pieces, described U-shaped pcb board comprises a hollow opening, and described hollow opening is for placing magnetic core, and U-shaped pcb board comprises front and reverse side, and at least one side places Copper Foil;
Described Copper Foil is U-shaped Copper Foil, and U-shaped Copper Foil has middle seam by central opening to outer rim, and U-shaped Copper Foil is divided into U-shaped openend one and U-shaped openend two, U-shaped openend one is positioned at marginal position, and U-shaped openend two is positioned at center;
U-shaped openend one comprises attachment screw hole one;
U-shaped openend two comprises attachment screw hole two;
Two pieces of U-shaped pcb boards are one group, the front of described two pieces of U-shaped pcb boards wherein front of a piece and another block is just to placement, it is insulating material between U-shaped Copper Foil, the U-shaped openend two of described two pieces of U-shaped pcb boards is just in time overlapping, be electrically connected by described attachment screw hole two, the U-shaped Copper Foil of two pieces of described U-shaped pcb boards forms inductor winding.
6. the inductance of Based PC B or device for transformer as described in claim 1 or claim 2, is characterized in that:
In the first described layers of copper, comprise the first layers of copper first and draw pad (P_1A), inner at pad (P_1A), comprise connecting through hole (H_1AB), draw pad (P_1A) and be not electrically connected with described first spiral Copper Foil;
At the second spiral Copper Foil of the second described layers of copper, comprise the first extraction pad (P_1B), pad (P_1B) is electrically connected by connecting through hole (H_1AB) with pad (P_1A).
7., as claim 1 or right will impose inductance or the device for transformer of Based PC B as described in 2, it is characterized in that:
In the first described layers of copper, comprise the fastening pad of the first layers of copper (P_6A), inner at pad (P_6A), comprise connecting through hole (H_6AB), draw pad (P_6A) and be not electrically connected with described first spiral Copper Foil;
At the second spiral Copper Foil of the second described layers of copper, comprise fastening pad (P_6B), pad (P_6B) is electrically connected by connecting through hole (H_6AB) with pad (P_6A), draws pad (P_6B) and is not electrically connected with described second spiral Copper Foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520131777.1U CN204390863U (en) | 2015-03-09 | 2015-03-09 | The inductance of a kind of Based PC B or device for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520131777.1U CN204390863U (en) | 2015-03-09 | 2015-03-09 | The inductance of a kind of Based PC B or device for transformer |
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| Publication Number | Publication Date |
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| CN204390863U true CN204390863U (en) | 2015-06-10 |
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| CN201520131777.1U Expired - Fee Related CN204390863U (en) | 2015-03-09 | 2015-03-09 | The inductance of a kind of Based PC B or device for transformer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869855A (en) * | 2016-05-20 | 2016-08-17 | 浙江求缺科技有限公司 | Planar transformer with double-column magnetic core structure |
| CN106298191A (en) * | 2016-09-22 | 2017-01-04 | 合肥博微田村电气有限公司 | A kind of foil type winding transformer and manufacture method thereof |
| CN106373733A (en) * | 2016-10-31 | 2017-02-01 | 广安鑫宇电子有限公司 | Adjustable planar transformer and manufacturing method therefor |
| CN109065337A (en) * | 2018-07-11 | 2018-12-21 | 深圳振华富电子有限公司 | Printed circuit board flat-plate transformer |
-
2015
- 2015-03-09 CN CN201520131777.1U patent/CN204390863U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869855A (en) * | 2016-05-20 | 2016-08-17 | 浙江求缺科技有限公司 | Planar transformer with double-column magnetic core structure |
| CN106298191A (en) * | 2016-09-22 | 2017-01-04 | 合肥博微田村电气有限公司 | A kind of foil type winding transformer and manufacture method thereof |
| CN106298191B (en) * | 2016-09-22 | 2017-12-22 | 合肥博微田村电气有限公司 | A kind of manufacture method of foil type winding transformer |
| CN106373733A (en) * | 2016-10-31 | 2017-02-01 | 广安鑫宇电子有限公司 | Adjustable planar transformer and manufacturing method therefor |
| CN106373733B (en) * | 2016-10-31 | 2017-11-14 | 广安鑫宇电子有限公司 | A kind of adjustable flat surface transformer and its manufacture method |
| CN109065337A (en) * | 2018-07-11 | 2018-12-21 | 深圳振华富电子有限公司 | Printed circuit board flat-plate transformer |
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Effective date of registration: 20180528 Address after: 641000 8 8 Han Chen Road, Neijiang economic and Technological Development Zone, Neijiang, Sichuan Patentee after: NEIJIANG LINGHUI ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 641006 No. 1, No. 651, Le Xian Road, Shizhong District, Neijiang, Sichuan. Patentee before: Liu Xiaolin |
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