CN208335960U - A kind of injection molding transformer - Google Patents
A kind of injection molding transformer Download PDFInfo
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- CN208335960U CN208335960U CN201820809339.XU CN201820809339U CN208335960U CN 208335960 U CN208335960 U CN 208335960U CN 201820809339 U CN201820809339 U CN 201820809339U CN 208335960 U CN208335960 U CN 208335960U
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Abstract
The utility model provides a kind of injection molding transformer, including skeleton, magnetic core, the first winding, the second winding and stitch end, the stitch end is separately mounted to the two sides of skeleton one end, two sides stitch end is equipped with stitch, the stitch is connect with the coiling of the first winding and the second winding respectively, it is characterized in that, at least one in first winding and the second winding is moulded in skeleton.By side winding by being moulded in skeleton, achieve the purpose that completely insulated, saves the safe distance of coil two sides, thereby reduce leakage inductance and magnetic circuit loss；The position of two sides winding is fixed by being molded, and is all filled up using injection molding between the coil of winding, the requirement of creepage distance and electric clearance is reduced, increases dielectric strength, to increase the proof voltage energy of transformer, reach higher safety requirements.
Description
Technical field
The utility model belongs to technical field of transformer equipment, and in particular to a kind of injection molding transformer.
Background technique
High frequency transformer is the power transformer that working frequency is more than intermediate frequency (10kHz), is mainly used for high frequency switch power
In make high-frequency switch power transformer.
In high frequency transformer design, the leakage inductance and distribution capacity of transformer must minimize, because in Switching Power Supply
High frequency transformer transmission is high-frequency pulse square wave signal.In the transient process of transmission, leakage inductance and distribution capacity can cause wave
Electric current and peak voltage and top oscillation are gushed, loss is caused to increase.
In the prior art, it in order to reduce leakage inductance, is usually wound between adjacent windings with insulating tape, but effect
It is poor, leakage inductance can be substantially reduced therefore, it is necessary to one kind and reduces the transformer of volume, to adapt to higher requirement.
Utility model content
The utility model is for can not completely separate between prior art coil, and small product size is big, leakage inductance compared with
Big problem now provides a kind of injection molding transformer, can be spaced apart by adjacent windings, reduces leakage inductance, saves product space,
And meet higher safety requirements requirement.
The utility model provides a kind of injection molding transformer, including skeleton, magnetic core, the first winding, the second winding and stitch
End, the stitch end are separately mounted to the two sides of skeleton one end, and two sides stitch end is equipped with stitch, the stitch respectively with first around
Group is connected with the coiling of the second winding, at least one in first winding and the second winding is moulded in skeleton.
Preferably, the outside of the skeleton is equipped with the first winding by injection molding, and the second winding solderless wrapped connection is on the first winding, and the
Two winding outermosts are equipped with adhesive tape layer.
Preferably, the first winding is molded in the skeleton, the second winding solderless wrapped connection is on the outside of skeleton, the second winding outermost
Equipped with adhesive tape layer.
Preferably, first winding and the second winding are by being moulded in skeleton, between the first winding and the second winding
It is filled by injection molded layers.
Preferably, first winding is moulded in the side of winding slot, and the second winding solderless wrapped connection is on winding slot.
Preferably, first winding and/or the second winding are air core coil.
Preferably, first winding and the second winding are respectively at least provided with a winding.
Preferably, metal is exposed in the skeleton bottom, and metal is connect with stitch, exposes metal part and is connected with magnetic core.
The beneficial effects of the utility model are:
1, by side winding by being moulded in skeleton, the gap between coil and between winding becomes smaller, and then reduces
Leakage inductance；
2, the position of two sides winding is fixed by being molded, and is all filled up using injection molding between the coil of winding, reduced
The required distance of creepage distance and electric clearance, increases dielectric strength, to increase the proof voltage energy of transformer, reaches
To higher safety requirements；
3, expose metal part to be connected with magnetic core, can preferably control EMC, EMI, the effect of common-mode noise.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram in the utility model in the first embodiment；
Fig. 3 is the structural schematic diagram in the utility model in second of embodiment；
Fig. 4 is the structural schematic diagram in the utility model in the third embodiment；
Fig. 5 is the structural schematic diagram in the utility model in the 4th kind of embodiment；
Fig. 6 is the structural schematic diagram of the utility model middle skeleton and metal；
Wherein, 1, magnetic core, 2, skeleton, 3, stitch end, 4, stitch, the 5, first winding, 6 second windings, 7, metal.
Specific embodiment
Technical solution described in the utility model is described without limitation below in conjunction with attached drawing, in order to the public
More fully understand the technology contents.
Embodiment one
As shown in Figures 1 to 5, a kind of injection molding transformer, including skeleton 2, magnetic core 1, the first winding 5,6 and of the second winding
Stitch end 3, the stitch end 3 are separately mounted to the two sides of 2 one end of skeleton, and two sides stitch end 3 is equipped with stitch 4, and the stitch 4 divides
It is not connect with the coiling of the first winding 5 and the second winding 6, at least one in first winding 5 and the second winding 6 passes through injection molding
It is fixed with skeleton 2.At least one set of winding in first winding 5 and the second winding 6 is molded, it can by two groups around component
It opens, avoids the leakage inductance that between winding because gap generates, reduce the required distance of creepage distance and electric clearance, increase
Dielectric strength, and then the proof voltage energy of transformer can be improved.
As shown in Fig. 2, the first embodiment as the utility model, the outside of the skeleton 2 is equipped with by injection molding
First winding 5, for 6 solderless wrapped connection of the second winding on the first winding 5,6 outermost of the second winding is equipped with adhesive tape layer.
As shown in figure 3, second of embodiment as the utility model, it is molded with the first winding 5 in the skeleton 2,
Second winding, 6 solderless wrapped connection is equipped with adhesive tape layer in 2 outside of skeleton, 6 outermost of the second winding.
As shown in figure 4, the third embodiment as the utility model, first winding 5 and the second winding 6 pass through
It is moulded in skeleton 2, is filled between the first winding 5 and the second winding 6 by injection molded layers.
As shown in figure 5, the 4th kind of embodiment as the utility model, first winding 5 are moulded in winding slot
Side, 6 solderless wrapped connection of the second winding is on winding slot.
It is at least that one group in the first winding 5 and the second winding 6 is fixed with skeleton 2, it can leakage inductance to be reduced, for winding
Fixation winding can be fixed on the outside of skeleton 2 by injection molding, can also be fixed in skeleton 2 by injection molding, further,
Since the coiling of winding uses insulated wire, in same group of winding, adhesive tape layer can be set between coil, can not have to
Setting.
Wherein, the first winding 5 and/or the second winding 6 are air core coil, and air core coil can be easily fixed by injection molding
In skeleton 2.
Wherein, respectively at least provided with a winding, the first winding 5 and the second winding 6 can for the first winding 5 and the second winding 6
One or more windings to be arranged according to actual needs, further, the first winding 5 and the second winding 6 can be according to practical need
It asks as armature winding or secondary windings.
Wherein, metal 7 is exposed in the skeleton bottom, and metal 7 is connect with stitch, exposes 7 part of metal and is connected with magnetic core, can
Preferably to control EMC, EMI, the effect of common-mode noise.
It should be understood that it is not limitation to the technical solution that above content, which includes attached drawing, in fact, identical or
Under approximate principle, to the improvement that the technical solution carries out, shape, size, material used including Each part, and
The equivalent replacement of essentially identical functional structure, all within the utility model technical solution claimed.
Claims (7)
1. a kind of injection molding transformer, including skeleton, magnetic core, the first winding, the second winding and stitch end, the skeleton are equipped with
Winding slot, the stitch end are separately mounted to the two sides of skeleton one end, and two sides stitch end is equipped with stitch, and the stitch is respectively with the
The coiling of one winding and the second winding connects, which is characterized in that at least one in first winding and the second winding passes through note
In skeleton, first winding and/or the second winding are air core coil for modeling.
2. injection molding transformer according to claim 1, it is characterised in that: the outside of the skeleton is equipped with the by injection molding
One winding, on the first winding, the second winding outermost is equipped with adhesive tape layer for the second winding solderless wrapped connection.
3. injection molding transformer according to claim 1, it is characterised in that: the first winding is molded in the skeleton, the
On the outside of skeleton, the second winding outermost is equipped with adhesive tape layer for two winding solderless wrapped connections.
4. injection molding transformer according to claim 1, it is characterised in that: first winding and the second winding pass through note
Modeling is filled between the first winding and the second winding by injection molded layers in skeleton.
5. injection molding transformer according to claim 1, it is characterised in that: first winding is moulded in the one of winding slot
Side, the second winding solderless wrapped connection is on winding slot.
6. injection molding transformer according to any one of claim 1 to 5, it is characterised in that: first winding and
Two windings are respectively at least provided with a winding.
7. injection molding transformer according to claim 6, it is characterised in that: metal is exposed in the skeleton bottom, metal with
Stitch connection is exposed metal part and is connected with magnetic core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820809339.XU CN208335960U (en) | 2018-05-29 | 2018-05-29 | A kind of injection molding transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820809339.XU CN208335960U (en) | 2018-05-29 | 2018-05-29 | A kind of injection molding transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208335960U true CN208335960U (en) | 2019-01-04 |
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ID=64775646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820809339.XU Active CN208335960U (en) | 2018-05-29 | 2018-05-29 | A kind of injection molding transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208335960U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023060550A1 (en) * | 2021-10-15 | 2023-04-20 | 广东伊戈尔智能电器有限公司 | Injection molded inductive apparatus, powder magnetic core, and injection molding method |
-
2018
- 2018-05-29 CN CN201820809339.XU patent/CN208335960U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023060550A1 (en) * | 2021-10-15 | 2023-04-20 | 广东伊戈尔智能电器有限公司 | Injection molded inductive apparatus, powder magnetic core, and injection molding method |
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