CN207993642U - A kind of novel laminated coil transformer of charging pile - Google Patents

A kind of novel laminated coil transformer of charging pile Download PDF

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Publication number
CN207993642U
CN207993642U CN201721714734.1U CN201721714734U CN207993642U CN 207993642 U CN207993642 U CN 207993642U CN 201721714734 U CN201721714734 U CN 201721714734U CN 207993642 U CN207993642 U CN 207993642U
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China
Prior art keywords
magnetic core
coil
transformer
charging pile
magnetic
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CN201721714734.1U
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Chinese (zh)
Inventor
翁亮
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Huizhou Ying Da Electronic Technology Co., Ltd.
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Dongguan Laifield Electronic Technology Co Ltd
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Abstract

A kind of novel laminated coil transformer of charging pile, relative to traditional round copper wire, it is limited in linear distance using the planar coil advantage of platypelloid type, can around more the number of turns, to promote whole inductance value and reduce the space occupied volume, and the planar coil of platypelloid type, relative to typical round copper wire, heat dissipation area is significantly increased, and is conducive to preferably radiate;The magnetic core stem in the middle part of two magnetic core main bodys passes through the magnetic core channel at coil windings center simultaneously, and two the ramp structure on magnetic core stem surface be mutually parallel, and constituted there are gap and open air gap, the magnetic saturation phenomenon in the case where exchanging big signal or direct current biasing is avoided, inductance value is preferably controlled.Reduce the utilization rate of magnetic loop and electrical circuit so that entire copper foil transformer has light-weight, efficient, the small feature of noise, and can adapt to higher frequency by more high current, high-power, low-loss, obtain higher quality factor Q values.

Description

A kind of novel laminated coil transformer of charging pile
Technical field
The utility model is related to transformer technology fields, more particularly to a kind of novel laminated coil transformer of charging pile.
Background technology
New electronic component planarizing, is being miniaturized, high frequency, wideband, high precision int and integrated side.Transformer As one of the key element in electronic equipment, volume becomes smaller, weight becomes lighter, performance promotion.
Mainly whether there is or not skeleton Wound-rotor type and there is two kind pattern of skeleton Wound-rotor type formula around line transformer.The two be tradition around The product of line inductance type;The volumetric spaces that the transformer of traditional wire-wound inductor type occupies are larger, and heat dissipation performance is poor, and And structure is more complicated, production efficiency is not high.
Invention content
To solve the above problems, the utility model provides a kind of novel laminated coil transformer of charging pile, the space occupied Small, simple in structure and production efficiency is high.
To achieve the above object, the technical solution adopted in the utility model is:A kind of novel laminated coil transformation of charging pile Device, including two magnetic core main bodys being mutually paired and several planar coils, wherein on the both ends of the planar coil respectively It is provided with connection terminal, plurality of planar coil is overlapped and constitutes coil windings, wherein the center of the coil windings Equipped with magnetic core channel, the magnetic core stem in corresponding magnetic core channel, and magnetic core stem top are equipped at the center of the magnetic core main body The surface in portion is ramp structure;The wherein two magnetic core stems are plugged in magnetic core channel, and the inclined-plane phase on two magnetic core stems It is mutually parallel and there are gaps.
Specifically, further include transformer case, the transformer case is fitted in the side of magnetic core main body.
Specifically, the magnetic core stem and the shape in magnetic core channel match.
Specifically, the planar coil is suppressed by copper foil.
Specifically, the upper and lower surface of planar coil is equipped with insulation glue surface.
The beneficial effects of the utility model are:It is excellent using the planar coil of platypelloid type relative to traditional round copper wire Point is limited in linear distance, can around more the number of turns, to promote whole inductance value and reduce the sky of occupancy Between volume, and the planar coil of platypelloid type, relative to typical round copper wire, heat dissipation area is significantly increased, and is conducive to preferably Heat dissipation;The magnetic core stem in the middle part of two magnetic core main bodys passes through the magnetic core channel at coil windings center, and two magnetic core stems simultaneously The ramp structure on surface is mutually parallel, and is constituted there are gap and open air gap, prevents transformer from generating at work wherein opening air gap Magnetic saturation reduces magnetic conductivity, and line Wei characteristic is made to be less dependent on the initial permeability of core material.It avoids exchanging big signal Or the magnetic saturation phenomenon under direct current biasing, preferably control inductance value.Reduce the utilization rate of magnetic loop and electrical circuit, while around Wiring technology is simple, reduces the labor intensity of worker, improves production efficiency;So that entire copper foil transformer have it is light-weight, It is efficient, the small feature of noise, and can adapt to higher frequency by more high current, high-power, low-loss, obtain higher quality Factor Q values.
Description of the drawings
Fig. 1 is the vertical view of the utility model planar coil.
Fig. 2 is the side view of the utility model magnetic core main body.
Fig. 3 is the utility model explosive view.
Fig. 4 is to open gap structure schematic diagram in the utility model magnetic core main body.
Drawing reference numeral explanation:1- planar coils;11- coil first ends;12- coil second ends;The connections of 111- first Terminal;121- second connection end;10- coil windings;2- magnetic core main bodys;21- magnetic core stems;The inclined-planes 22-;23- opens air gap.
Specific implementation mode
It please refers to shown in Fig. 3-4, in this embodiment, a kind of novel laminated coil transformer of charging pile, including phase The two magnetic core main bodys 2 mutually matched and several planar coils 1, wherein being respectively arranged on the both ends of the planar coil 1 Connection terminal, plurality of planar coil 1 is overlapped and constitutes coil windings 10, wherein the center of the coil windings 10 is set There is magnetic core channel, the magnetic core stem 21 in corresponding magnetic core channel, and the magnetic core stem 21 are equipped at the center of the magnetic core main body 2 Surface be 22 structure of inclined-plane;The two magnetic core stems 21 are plugged in magnetic core channel, and the inclined-plane 22 on two magnetic core stems 21 It is mutually parallel and there are gaps.
Refering to Figure 1, please refer to Fig.1 shown in -3, including multiple planar coils 1, the both ends point of the planar coil 1 Not Wei coil first end 11, coil second end 12, coil first end 11 is arranged in the upper of coil second end 12 Side, the coil first end 11 are equipped with the first connection terminal 111 extended to the right, and coil second end 12 is provided with prolongs to the left Second connection end 121 stretched;121 points of the first connection terminal 111 wherein on each planar coil 1 and second connection end It is not electrically connected with power supply pcb board.
Do not connect with other planar coils 1 in the top layer of the coil windings 10 and the planar coil 1 of the bottom wherein The connection terminal connect is equipped with lead, as long as the lead straight forming goes out foot and can directly be welded with the circuit board of downstream product It connects, eliminates the winding process of lead and skeleton stitch, thus, yield rate is also improved indirectly.
Relative to traditional round copper wire, it is limited in linear distance using 1 advantage of planar coil of platypelloid type, Can around more the number of turns, to promote whole inductance value and reduce the space occupied volume, and the planar line of platypelloid type Relative to typical round copper wire, heat dissipation area is significantly increased circle 1, is conducive to preferably radiate;Simultaneously in two magnetic core main bodys 2 The magnetic core stem 21 in portion passes through the magnetic core channel at 10 center of coil windings, and the 22 structure phase of inclined-plane on two magnetic core stems, 21 surface It is mutually parallel, and constituted there are gap and open air gap 23, it is being exchanged greatly wherein opening air gap 23 and can prevent transformer from generating at work Magnetic saturation phenomenon under signal or direct current biasing, preferably controls inductance value.Reduce magnetic conductivity simultaneously, makes line Wei characteristic less Dependent on the initial permeability of core material, the utilization rate of magnetic loop and electrical circuit is reduced, while wire winding is simple, reduced The labor intensity of worker, improves production efficiency;So that entire transformer has light-weight, efficient, the small feature of noise, And it can adapt to higher frequency by more high current, high-power, low-loss, obtain higher quality factor Q values.
Specifically, the magnetic core stem 21 and the shape in the magnetic core channel at 10 center of coil windings match.By In in this embodiment, described two magnetic core main bodys 2 are the PQ type magnetic cores being mutually paired, wherein PQ types magnetic core PQ shapes Ratio of the design optimization between core volume surface area and winding technique area, this design using minimum magnetic core so that carried Be possibly realized for maximum inductance value and maximized coiling area, at the same can under minimum volume of transformer and weight, Maximum output power is obtained, and occupies minimum PCB installation spaces and can use and pay a clip and carry out that installation is fixed this to be had The magnetic circuit sectional area for the magnetic core that the design of effect also makes is more unified;In addition described two magnetic core stems 21 can also be to be mutually paired UT or EI or ERI type magnetic cores.
It please refers to shown in Fig. 4, specifically, wherein further including two transformer cases, the change in this embodiment Depressor shell is separately positioned on the both sides of coil windings 10, and is fitted on the side of two magnetic core main bodys 2.Transformer case can Make basic protective effect with magnetic core main body 2.
Specifically, since each planar coil 1 is upper and lower closed assembly, there are gap, and the window of magnetic core up and down Utilization rate is not also high, and this structure forms radiator window.Thermal window is conducive to heat dissipation, is less than 40 in rated for service Wen Sheng ℃.To substantially reduce core loss, and heat ageing phenomenon is not present, product work is more stable.
Specifically, the planar coil 1 is suppressed by copper foil.Copper foil is a kind of cloudy matter electrolysis material, is deposited in electricity A floor on the plate basal layer of road is thin, continuous metal foil;It is because copper foil has using copper foil as the material of planar coil 1 is made There is excellent conduction, and the effect of electromagnetic shielding is provided, performance is stablized.
Specifically, the upper and lower surface of planar coil 1 is equipped with insulation glue surface.The glue surface that insulate is in each planar line Circle 1 plays the role of insulation, ensures to connect by connection terminal between each planar coil 1.
Embodiment of above is only that preferred embodiments of the present invention are described, not to the utility model Range be defined, under the premise of not departing from the spirit of the design of the utility model, this field ordinary engineering and technical personnel to this The various modifications and improvement that the technical solution of utility model is made should all fall into the guarantor that claims of the utility model determine It protects in range.

Claims (5)

1. a kind of novel laminated coil transformer of charging pile, which is characterized in that including two magnetic core main bodys being mutually paired and Several planar coils, wherein connection terminal is respectively arranged on the both ends of the planar coil, plurality of planar coil phase Coil windings are mutually overlapped and constitute, wherein the center of the coil windings is equipped with magnetic core channel, at the center of the magnetic core main body Magnetic core stem equipped with corresponding magnetic core channel, and the surface at the top of the magnetic core stem is ramp structure;Wherein two magnetic cores Stem is plugged in magnetic core channel, and the inclined-plane on two magnetic core stems is mutually parallel and there are gaps.
2. the novel laminated coil transformer of a kind of charging pile according to claim 1, which is characterized in that further include transformer Shell, the transformer case are fitted in the two sides of magnetic core main body.
3. the novel laminated coil transformer of a kind of charging pile according to claim 1, which is characterized in that the magnetic core stem Match with the shape in magnetic core channel.
4. the novel laminated coil transformer of a kind of charging pile according to claim 1, which is characterized in that the planar coil It is suppressed by copper foil.
5. the novel laminated coil transformer of a kind of charging pile according to claim 1, which is characterized in that planar coil it is upper Surface and lower surface are equipped with insulation glue surface.
CN201721714734.1U 2017-12-07 2017-12-07 A kind of novel laminated coil transformer of charging pile Active CN207993642U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721714734.1U CN207993642U (en) 2017-12-07 2017-12-07 A kind of novel laminated coil transformer of charging pile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721714734.1U CN207993642U (en) 2017-12-07 2017-12-07 A kind of novel laminated coil transformer of charging pile

Publications (1)

Publication Number Publication Date
CN207993642U true CN207993642U (en) 2018-10-19

Family

ID=63816642

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721714734.1U Active CN207993642U (en) 2017-12-07 2017-12-07 A kind of novel laminated coil transformer of charging pile

Country Status (1)

Country Link
CN (1) CN207993642U (en)

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GR01 Patent grant
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TR01 Transfer of patent right

Effective date of registration: 20190314

Address after: 516023 No. 3 Xiangda Road, Xiaojinkou Street Office, Huicheng District, Guangdong Province

Patentee after: Huizhou Ying Da Electronic Technology Co., Ltd.

Address before: 523000 Third Floor, Building B, No. 1 Nengda Road, Tianliao Village, Shipai Town, Dongguan City, Guangdong Province

Patentee before: Dongguan laifield Electronic Technology Co., Ltd.