CN204926996U - Insulating transformer - Google Patents
Insulating transformer Download PDFInfo
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- CN204926996U CN204926996U CN201520738134.3U CN201520738134U CN204926996U CN 204926996 U CN204926996 U CN 204926996U CN 201520738134 U CN201520738134 U CN 201520738134U CN 204926996 U CN204926996 U CN 204926996U
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- magnetic core
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- insulating transformer
- drum stand
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Abstract
The utility model provides an insulating transformer, this insulating transformer have the bobbin, convolute on the bobbin the winding and install in the E of bobbin type magnetic core and I type magnetic core, the bobbin has: roll up the core, it supplies the winding to convolute, and supplies a partially insert of E type magnetic core, a pair of winding terminal portion, it has a plurality of pins of being connected with the winding of convoluteing of being used for, and the I type magnetic core portion of accomodating, it is between a pair of winding terminal portion to be located the below of roll core, be used for accomodating I type magnetic core, the I type magnetic core portion of inserting that the I type magnetic core portion of accomodating has the E type magnetic core that is used for inserting E type magnetic core between a pair of winding terminal portion of inserting and is used for inserting I type magnetic core, and, to be accomodate when I type magnetic core is accomodate when I type magnetic core, a plurality of of I type magnetic core are covered by the bobbin. According to the utility model discloses an insulating transformer can ensure necessary creepage distance to can carry out automatic coiling to the winding through the coiling machine, and easy equipment.
Description
Technical field
The utility model relates to technical field of electricity, particularly relates to a kind of insulating transformer.
Background technology
In general, for transformer, between winding, secondary winding and a magnetic core, require higher insulation property.Therefore, need to guarantee the insulation distance corresponding to insulation property.
In order to ensure insulation distance, transformer can be considered to be accommodated in receiver, the peristome of the end of coil from receiver be drawn, thus the end of coil is separated with magnetic core.In this case, easily can guarantee the distance of magnetic core and coil, enough insulation distances can be obtained.But, due to transformer is put into receiver, make transformer size become large, and can not fully dispel the heat.In addition, be difficult to use coil winding machine to carry out auto reeling to coil.
In order to solve the problem be accommodated in by transformer in receiver, in patent document 1 (Japanese Unexamined Patent Publication 2011-040504 publication), above transformer is accommodated in and the cover of front openings.Due to by means of only covering the part covered and need insulate, can dispel the heat from opening part while guaranteeing insulation distance.
In addition, in patent document 2 (US2015/0116068 publication), between the external connection terminals and magnetic core of connecting coil end, there is spacer block, increase creepage distance by the height of spacer block.
Above it should be noted that, just conveniently to the technical solution of the utility model, clear, complete explanation is carried out to the introduction of technical background, and facilitate the understanding of those skilled in the art to set forth.Only can not think that technique scheme is conventionally known to one of skill in the art because these schemes have carried out setting forth in background technology part of the present utility model.
Utility model content
Inventor of the present utility model finds, in documents 1, owing to being covered by cover, so the size of transformer becomes large, in addition, need following step: transformer is accommodated in the step in cover, and by the winding welding of drawing after storage at pin, or winding is fixed on the step of fixed part.Further, due to a winding or secondary winding are drawn from top side, so be difficult to carry out auto reeling by coil winding machine.
In addition, in documents 2, owing to being provided with spacer block, creepage distance can be extended when not sacrificing manufacturing, but when needing long creepage distance, the height of spacer block increases, and makes the size of transformer increase the amount corresponding to the height of spacer block.In addition, if do not arrange spacer block, outside the side of transformer, the situation of the creepage distance deficiency between external connection terminals and magnetic core may be there is.
The utility model provides a kind of insulating transformer, and this insulating transformer can guarantee necessary creepage distance, and can carry out auto reeling by coil winding machine to winding, and easily assembles.
According to the first aspect of the utility model embodiment, a kind of insulating transformer is provided, this insulating transformer has drum stand, is wound on the winding on described drum stand and is installed on E-type magnetic core and the I type magnetic core of described drum stand, described drum stand has: core portion, it for described winding winding, and inserts for a part for described E-type magnetic core; A pair winding terminals portion, it has multiple pin for the winding switching with winding; And I type magnetic core incorporating section, it is formed between described a pair winding terminals portion, and be positioned at the below in described core portion, for receiving described I type magnetic core, described I type magnetic core incorporating section has for inserting the E-type magnetic core insertion section of described E-type magnetic core and the I type magnetic core insertion section for inserting described I type magnetic core between described a pair winding terminals portion, further, when described I type magnetic core is incorporated in described I type magnetic core incorporating section, multiple of described I type magnetic core are covered by described drum stand.
According to the second aspect of the utility model embodiment, wherein, described drum stand also has bottom surface shielding portion and side shielding portion, described I type magnetic core incorporating section is by described a pair winding terminals portion, described bottom surface shielding portion and described side shielding portion enclose and form, the top of described I type magnetic core incorporating section is formed as I type magnetic core storage top, wherein, described E-type magnetic core insertion section is arranged at described I type magnetic core storage top, when described E-type magnetic core and described I type magnetic core are inserted into described drum stand, described E-type magnetic core contacts with described I type magnetic core, and described I type magnetic core is positioned at the below of described E-type magnetic core.
According to the third aspect of the utility model embodiment, wherein, at least one pin in multiple pins that described a pair winding terminals portion has, is configured to the end of the close described side shielding portion in described a pair winding terminals portion.
According to the fourth aspect of the utility model embodiment, wherein, for at least one the winding terminals portion in described a pair winding terminals portion, the minimum range of its pin had and described side shielding portion is less than the minimum range of described pin and described I type magnetic core insertion section.
According to the 5th aspect of the utility model embodiment, wherein, described I type magnetic core is located by described side shielding portion, and described E-type magnetic core is located by the peristome on described magnetic core storage top.
According to the 6th aspect of the utility model embodiment, wherein, described drum stand is formed in one.
The beneficial effects of the utility model are: E shape magnetic core and I type magnetic core are arranged on and are wound with on the drum stand of winding, can guarantee necessary creepage distance, and can carry out auto reeling by coil winding machine to winding, and easily assemble between magnetic core and winding.
With reference to explanation hereinafter and accompanying drawing, disclose in detail particular implementation of the present utility model, specifying principle of the present utility model can adopted mode.Should be appreciated that, thus execution mode of the present utility model is not restricted in scope.In the spirit of claims and the scope of clause, execution mode of the present utility model comprises many changes, amendment and is equal to.
The feature described for a kind of execution mode and/or illustrate can use in one or more other execution mode in same or similar mode, combined with the feature in other execution mode, or substitutes the feature in other execution mode.
Should emphasize, term " comprises/comprises " existence referring to feature, one integral piece, step or assembly when using herein, but does not get rid of the existence or additional of one or more further feature, one integral piece, step or assembly.
Accompanying drawing explanation
Included accompanying drawing is used to provide the further understanding to the utility model embodiment, which constituting a part for specification, for illustrating execution mode of the present utility model, and coming together to explain principle of the present utility model with text description.Apparently, the accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.In the accompanying drawings:
Fig. 1 is a perspective view of the insulating transformer of the embodiment of the present application;
Fig. 2 is a separate structure schematic diagram of the insulating transformer of the embodiment of the present application;
Schematic side view when Fig. 3 (A) is the insulating transformer inversion of the embodiment of the present application;
Fig. 3 (B) is a schematic top plan view of the insulating transformer of the embodiment of the present application;
Fig. 4 is the A-A schematic cross-section of Fig. 3 (B);
Schematic perspective view when Fig. 5 is the insulating transformer inversion of the embodiment of the present application.
Embodiment
With reference to accompanying drawing, by specification below, aforementioned and further feature of the present utility model will become obvious.In the specification and illustrated in the drawings, specifically disclose particular implementation of the present utility model, which show the some embodiments that wherein can adopt principle of the present utility model, will be appreciated that, the utility model is not limited to described execution mode, on the contrary, the utility model comprises the whole amendments fallen in the scope of claims, modification and equivalent.
In the following embodiment of the application, will point to the direction in core portion from I type magnetic core incorporating section as " upper direction ", direction that will be contrary with " upper direction " is as " lower direction ".It is noted that the above-mentioned definition for upper direction and lower direction, is only for convenience of description, and direction when not limiting the manufacture of this insulating transformer and use.
Embodiment 1
The utility model embodiment 1 provides a kind of insulating transformer, Fig. 1 is a perspective view of this insulating transformer, Fig. 2 is a separate structure schematic diagram of this insulating transformer, schematic side view when Fig. 3 (A) is insulating transformer inversion, Fig. 3 (B) is a schematic top plan view of insulating transformer, Fig. 4 is the A-A schematic cross-section of Fig. 3 (B), schematic perspective view when Fig. 5 is insulating transformer inversion.
As depicted in figs. 1 and 2, this insulating transformer 1 has drum stand 2, is wound on the winding 3 on described drum stand and is installed on E-type magnetic core 13 and the I type magnetic core 14 of this drum stand 2.
In the present embodiment, as shown in Figure 2, the E-type magnetic core 13 of this insulating transformer can have flat part 131, first tongue 132 and two the second tongues 133, wherein, first tongue 132 can be parallel with flat part 131 with the second tongue 133, and be positioned at the same side of flat part, and the first tongue 132 is positioned at the centre position of two the second tongues 133.Thus, when observing from the side, this E-type magnetic core 13 is in E word shape.
In the present embodiment, I type magnetic core 14 can be tabular, and thus, when observing from the side, this I type magnetic core 14 is in I font.
In the present embodiment, drum stand 2 can be formed by insulating material, such as, can be resin, guarantee its insulation property thus.Further, drum stand 2 can be formed in one, and thus, can save man-hour.But the present embodiment can be not limited thereto, drum stand 2 can not adopt resin material, and can not be one-body molded.
In the present embodiment, as shown in Figure 2, this drum stand 2 comprises: core portion 21, a pair winding terminals portion 5,6, and I type magnetic core incorporating section 8 etc.
In the present embodiment, core portion 21 is for described winding winding, and insert for a part for E-type magnetic core 13, such as, this core portion 21 can be cylindric, and the outer wall in the core portion 21 of this cylindrical shape can be used for winding 3 to reel, and, this winding 3 can be made up of first side winding and secondary side winding, and the cylinder interior space in this core portion 21 can be used for the first tongue 132 of E-type magnetic core 13 to insert.In addition, flange 4 can also be had on the top in core portion 21.
In the present embodiment, as shown in Fig. 1,2,5, a pair winding terminals portion 5,6 can have multiple pin 7 for being connected with the winding 3 of winding.Such as, this pair winding terminals portion can comprise primary side portion of terminal 5 and secondary side portion of terminal 6, and, primary side portion of terminal 5 can have multiple pin 7, for connecting the first side winding of winding 3, secondary side portion of terminal 6 can have multiple pin 7, for connecting the secondary side winding of winding 3.
In the present embodiment, as shown in Figure 1, 2, I type magnetic core incorporating section 8 can be formed between a pair winding terminals portion 5,6, and is positioned at the below in this core portion 21, for receiving I type magnetic core 14.This I type magnetic core incorporating section 8 can have E-type magnetic core insertion section 12 and I type magnetic core insertion section 9, and wherein, E-type magnetic core 13 can be inserted between this pair winding terminals portion 5,6 via this E-type magnetic core insertion section 12; This I type magnetic core 14 can be inserted between this pair winding terminals portion 5,6 via this I type magnetic core insertion section 9, thus is incorporated in I type magnetic core incorporating section 8.
In the present embodiment, when this I type magnetic core 14 is incorporated in this I type magnetic core incorporating section 8, multiple of this I type magnetic core 14 are covered by drum stand, such as, the upper surface of this I type magnetic core 14 can be covered by core portion 21, two sides of this I type magnetic core 14 can be covered by primary side portion of terminal 5 and secondary side portion of terminal 6 respectively, thus, add the creepage distance of this I type magnetic core 14 and pin 7.
In the present embodiment, as shown in Figure 2, following method assembling can be adopted to form this insulating transformer 1:
First, in a known manner, such as, by sutomatic winding machine, reel in core portion 21 coil 3 be made up of a winding and secondary winding, and the lead-in wire of a winding and secondary winding is connected to corresponding pin 7; Secondly, insert I type magnetic core 14 from I type magnetic core insertion section 9, thus I type magnetic core 14 is accommodated in I type magnetic core incorporating section 8, and, insert E-type magnetic core 13 from E-type magnetic core insertion section 12; Thereafter, adopt known method, by adhesive tape or sticker etc., by E-type magnetic core 13, I type magnetic core 14, and drum stand 2 is fixed.In addition, as required, varnish impregnation can also be carried out, to complete the assembling of transformer.
In the present embodiment, cover portion is set like that from patent document 1 and patent document 2 or dividing plate different, two sides of the I type magnetic core 14 of the present embodiment are covered by primary side portion of terminal 5 and secondary side portion of terminal 6 respectively, thus, add the creepage distance between this I type magnetic core 14 and pin 7; Further, in the present embodiment, can be reeled each winding by sutomatic winding machine, so, easily can assemble transformer.
As shown in Figure 2, in the present embodiment, drum stand 2 can also have bottom surface shielding portion 10 and side shielding portion 11, therefore, this I type magnetic core incorporating section 8 can be by a pair winding terminals portion 5,6, the space that this bottom surface shielding portion 10 and this side shielding portion 11 enclose.In this I type magnetic core incorporating section 8, its upper space can be formed as I type magnetic core storage top, and this E-type magnetic core insertion section 12 can be arranged at described I type magnetic core storage top.
In the present embodiment, as shown in Figure 2, side shielding portion 11 is connected with the rear end being positioned at I type magnetic core 14 direction of insertion in this pair winding terminals portion 5,6, and thus, this I type magnetic core 14 can be located by side shielding portion 11 in an insertion direction.In addition, this pair winding terminals portion 5,6 also on the direction vertical with this I type magnetic core 14 direction of insertion, can position this I magnetic core 14.
In the present embodiment, as shown in Figure 2, bottom surface shielding portion 10 can be configured to the bottom of this I type magnetic core incorporating section 8, may be used for positioning the lower surface of I type magnetic core.
In the present embodiment, as shown in Figure 2, the opening shape of E-type magnetic core insertion section 12 is consistent with the shape of E-type magnetic core 13, thus, when E-type magnetic core 13 inserts via this E-type magnetic core insertion section 12, the opening on this I type magnetic core storage top can position E-type magnetic core 13.
As shown in Figure 4, in the present embodiment, this E-type magnetic core 13 is being inserted via E-type magnetic core insertion section 12, and via I type magnetic core insertion section 9 insert this I type magnetic core 14 when, this I type magnetic core 14 is positioned at the below of this E-type magnetic core 13, and this E-type magnetic core 13 and this I type magnetic core 14 can be located, thus, guarantee that the two contacts well, prevent owing to moving and cause loose contact.
In the present embodiment, I type magnetic core 14 can by bottom shielding portion 10, side shielding portion 11, core portion 21, primary side portion of terminal 5 and secondary side portion of terminal 6 cover, so can guarantee to be connected to a winding of pin or the insulation distance between secondary winding and magnetic core.
In the present embodiment, as shown in Figure 5, near the side shielding portion 11 opposed with I type magnetic core insertion section 9, for primary side portion of terminal 5 and secondary side portion of terminal 6, all can pin 7 be configured near end, this is because side shielding portion 11 can guarantee the position of I type magnetic core, and guarantee that there is between I type magnetic core 14 and pin 7 necessary insulation distance.Pass through said structure, can near side shielding portion 11 configuration pin 7, thus the configuration scope of pin is expanded, such as, the plurality of pin 7 can be set to smaller with the minimum range of this side shielding portion 11, further, this minimum range can change according to the change of the design of drum stand and/or material; In an embodiment, at least one in this pin 7 can be arranged on the end near this side shielding portion 11 of primary side portion of terminal 5 or primary side portion of terminal 6.
On the other hand, as shown in Figure 5, in the present embodiment, I type magnetic core can be set to primary side structure member, thus, near I type magnetic core insertion section 9, for primary side portion of terminal 5, pin 7 can be configured near end, but for secondary side portion of terminal 6, need the distance arranging pin 7 and end with reference to necessary insulation distance, namely the arrow B of Fig. 5 represents that pin 7 is left end to be configured.Thus, in the present embodiment, for secondary side portion of terminal 6, multiple pins 7 that it has and the minimum range of I type magnetic core insertion section 9 can be greater than the minimum range of the plurality of pin 7 and side shielding portion 11, but the present embodiment is not limited to this, such as, for primary side portion of terminal 5, also multiple pin 7 and the minimum range of I type magnetic core insertion section 9 can be set to the minimum range being greater than the plurality of pin 7 and side shielding portion 11.
According to the present embodiment, this insulating transformer can stand such as up to the dielectric voltage withstand of 15kv.
In the present embodiment, can be reeled each winding by automatic coil winding machine, so easily transformer can be assembled; And, for the I type magnetic core of configuration near primary side portion of terminal 5 and secondary side portion of terminal 6, all can be covered by the drum stand 2 formed by insulating material in the part except I type magnetic core insertion section 9, so the insulation distance between magnetic core and winding reliably can be guaranteed.
More than being described the utility model in conjunction with concrete execution mode, but it will be apparent to those skilled in the art that these descriptions are all exemplary, is not the restriction to the utility model protection range.Those skilled in the art can make various variants and modifications according to spirit of the present utility model and principle to the utility model, and these variants and modifications are also in scope of the present utility model.
Claims (6)
1. an insulating transformer, this insulating transformer has drum stand, is wound on the winding on described drum stand and is installed on E-type magnetic core and the I type magnetic core of described drum stand,
It is characterized in that, described drum stand has:
Core portion, it for described winding winding, and inserts for a part for described E-type magnetic core;
A pair winding terminals portion, it has multiple pin for the winding switching with winding; And
I type magnetic core incorporating section, it is formed between described a pair winding terminals portion, and be positioned at the below in described core portion, for receiving described I type magnetic core, described I type magnetic core incorporating section has for inserting the E-type magnetic core insertion section of described E-type magnetic core and the I type magnetic core insertion section for inserting described I type magnetic core between described a pair winding terminals portion, further, when described I type magnetic core is incorporated in described I type magnetic core incorporating section, multiple of described I type magnetic core are covered by described drum stand.
2. insulating transformer according to claim 1, is characterized in that,
Described drum stand also has bottom surface shielding portion and side shielding portion,
Described I type magnetic core incorporating section is enclosed by described a pair winding terminals portion, described bottom surface shielding portion and described side shielding portion and forms,
The top of described I type magnetic core incorporating section is formed as I type magnetic core storage top, and wherein, described E-type magnetic core insertion section is arranged at described I type magnetic core storage top,
When described E-type magnetic core and described I type magnetic core are inserted into described drum stand, described E-type magnetic core contacts with described I type magnetic core, and described I type magnetic core is positioned at the below of described E-type magnetic core.
3. insulating transformer according to claim 2, is characterized in that,
At least one pin in multiple pins that described a pair winding terminals portion has, is configured to the end of the close described side shielding portion in described a pair winding terminals portion.
4. insulating transformer according to claim 2, is characterized in that,
For at least one the winding terminals portion in described a pair winding terminals portion, the minimum range of its pin had and described side shielding portion is less than the minimum range of described pin and described I type magnetic core insertion section.
5. insulating transformer according to claim 2, is characterized in that,
Described I type magnetic core is located by described side shielding portion, and described E-type magnetic core is located by the peristome on described I type magnetic core storage top.
6. insulating transformer according to claim 1, is characterized in that,
Described drum stand is formed in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520738134.3U CN204926996U (en) | 2015-09-22 | 2015-09-22 | Insulating transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520738134.3U CN204926996U (en) | 2015-09-22 | 2015-09-22 | Insulating transformer |
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| Publication Number | Publication Date |
|---|---|
| CN204926996U true CN204926996U (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520738134.3U Active CN204926996U (en) | 2015-09-22 | 2015-09-22 | Insulating transformer |
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| CN (1) | CN204926996U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109841395A (en) * | 2017-11-24 | 2019-06-04 | Tdk株式会社 | Coil assembly |
| CN109841391A (en) * | 2017-11-24 | 2019-06-04 | Tdk株式会社 | Coil assembly |
| DE102020106982A1 (en) | 2020-03-13 | 2021-09-16 | Tdk Electronics Ag | Component with winding carrier and core and method for producing a component |
-
2015
- 2015-09-22 CN CN201520738134.3U patent/CN204926996U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109841395A (en) * | 2017-11-24 | 2019-06-04 | Tdk株式会社 | Coil assembly |
| CN109841391A (en) * | 2017-11-24 | 2019-06-04 | Tdk株式会社 | Coil assembly |
| CN109841391B (en) * | 2017-11-24 | 2022-02-25 | Tdk株式会社 | Winding component |
| DE102020106982A1 (en) | 2020-03-13 | 2021-09-16 | Tdk Electronics Ag | Component with winding carrier and core and method for producing a component |
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