CN212967359U - Magnetic integrated transformer and vehicle-mounted power supply with same - Google Patents

Abstract

The utility model discloses an integrated transformer of magnetism to an on-vehicle power supply with integrated transformer of magnetism is disclosed, wherein the integrated transformer of magnetism includes: the upper end surface of the first common magnetic core seat is provided with at least two magnetic core middle columns; the magnetic core comprises at least two first windings, wherein each first winding is wound on a corresponding magnetic core center pillar; and each two second windings are respectively wound on the corresponding magnetic core middle columns and are respectively positioned on the upper side and the lower side of the corresponding first windings. According to the utility model discloses a magnetism integrated transformer can effectively reduce the product volume, reduces the product and leaks the sense.

Description

Magnetic integrated transformer and vehicle-mounted power supply with same

Technical Field

The utility model relates to a transformer technical field, in particular to integrated transformer of magnetism and have its vehicle mounted power.

Background

In the prior art development, high power and high current of the transformer are the development trend. The conventional high-frequency transformer needs a plurality of transformers to be connected in series due to power influence, so that the size is large, the loss is large, and ripple current is difficult to inhibit.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an integrated transformer of magnetism can effectively reduce the transformer volume, reduces the transformer leakage inductance.

The utility model also provides an on-vehicle power supply with above-mentioned magnetism integrated transformer.

According to the utility model discloses a magnetism integrated transformer of first aspect embodiment includes: the upper end surface of the first common magnetic core seat is provided with at least two magnetic core middle columns; each first winding is wound on the corresponding magnetic core center pillar; and every two second windings are respectively wound on the corresponding magnetic core middle column and are respectively positioned at the upper side and the lower side of the corresponding first winding.

According to the utility model discloses integrated transformer of magnetism has following beneficial effect at least: at least two magnetic core center posts are arranged on the upper end face of the first public magnetic core seat, and a first winding and two second windings are wound on each magnetic core center post, so that at least two transformers can be formed, the size of the transformer can be effectively reduced, ripple current can be inhibited, and loss can be reduced; the three windings can form a structure of a secondary winding, a primary winding and a secondary winding, and the leakage inductance of the transformer can be effectively reduced.

According to the utility model discloses a some embodiments still include two at least first connecting portions and two at least second connecting portions, every the second winding is equipped with first pin and second pin respectively, is located same on the magnetic core center pillar first pin connect in same on the first connecting portion, be located same on the magnetic core center pillar the second pin connect in same on the second connecting portion.

According to some embodiments of the utility model, be located same first pin on the magnetic core center pillar sets up along vertical direction relatively, is located same second pin on the magnetic core center pillar sets up along vertical direction relatively.

According to some embodiments of the utility model, still include the fixed part, the fixed part set up in the second winding with between the first public magnetic core seat, be provided with a plurality of fixed orifices on the fixed part, the lower extreme of first connecting portion with the lower extreme of second connecting portion is inserted respectively and is located correspondingly in the fixed orifice.

According to some embodiments of the utility model, still be equipped with a plurality of wire guide on the fixed part, the inlet wire end and the leading-out terminal of first winding are inserted respectively and are located correspondingly in the wire guide.

According to some embodiments of the present invention, each the incoming line end and the outgoing line end of the first winding are located at the front side of the first common core print, each the first pin and each the second pin is located at the rear side of the first common core print.

According to some embodiments of the utility model, still including set up in the public magnetic core seat of second of magnetic core center pillar upper end, the public magnetic core seat of second with the left and right sides of first public magnetic core seat still is equipped with the magnetic core side post respectively.

According to some embodiments of the invention, each said second winding is comprised of copper bars.

According to some embodiments of the utility model, every the inlet wire end and the leading-out terminal of first winding all are located the front side of first public magnetic core seat, every the inlet wire end and the leading-out terminal of second winding all are located the rear side of first public magnetic core seat.

According to the utility model discloses a vehicle mounted power of second aspect embodiment, including the integrated transformer of magnetism of above-mentioned first aspect embodiment.

According to the utility model discloses vehicle mounted power has following beneficial effect at least: reduce vehicle power's volume, promote vehicle power's result of use.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a front view of a magnetic integrated transformer according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a magnetic integrated transformer according to an embodiment of the present invention;

fig. 3 is a top view of a fixing portion of a magnetic integrated transformer according to an embodiment of the present invention;

fig. 4 is a left side view of the magnetic integrated transformer according to the embodiment of the present invention.

Reference numerals:

a first common magnetic core base 100, a second common magnetic core base 200, a first magnetic core center pillar 300, a second magnetic core center pillar 400, a third magnetic core center pillar 500, a first magnetic core side pillar 600, and a second magnetic core side pillar 700;

the coil comprises a first winding 800, a second winding 900, a first pin 910, a second pin 920, a first connecting part 1000, a second connecting part 1100, a fixing part 1200, a fixing hole 1210 and a wire guide 1220.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, several meanings are one or more, and if there are descriptions of the first, second and third, these are only used for distinguishing technical features, but they are not interpreted as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1, the magnetic integrated transformer of the embodiment of the first aspect of the present invention includes: first public magnetic core seat 100, two at least first windings 800 and four at least second windings 900, first public magnetic core seat 100 up end is provided with two at least magnetic core center pillars, and every first winding 800 is around respectively locating on the magnetic core center pillar that corresponds, and every two second windings 900 are around respectively locating on the magnetic core center pillar that corresponds and are located the upper and lower both sides of the first winding 800 that corresponds respectively.

At least two magnetic core center pillars are arranged on the upper end face of the first common magnetic core base 100, and a winding is wound on each magnetic core center pillar, so that at least two transformers can be formed, the volume of the transformers can be effectively reduced, and ripple current can be inhibited; and through all around being equipped with first winding 800 and two second windings 900 on every magnetic core center pillar, two second windings 900 are located the upper and lower both sides of first winding 800 respectively for three windings on every magnetic core center pillar can form the structure of secondary winding-primary side winding-secondary side winding, can effectively reduce the leakage inductance of transformer.

Further, the utility model discloses integrated transformer of magnetism in embodiment includes three magnetic core center pillar, three first winding 800 and six second windings 900, three magnetic core center pillar is first magnetic core center pillar 300 respectively, second magnetic core center pillar 400 and third magnetic core center pillar 500, three first winding 800 is around establishing at first magnetic core center pillar 300 respectively, the middle part of second magnetic core center pillar 400 and third magnetic core center pillar 500, six second windings 900 are around establishing the upper and lower both ends at first magnetic core center pillar 300 respectively, the upper and lower both ends of second magnetic core center pillar 400 and the upper and lower both ends of third magnetic core center pillar 500, can be in the same place three transformer integration through setting up like this, thereby effectively reduce the volume and the weight of transformer and restrain ripple current. And the first winding 800 on the same magnetic core center pillar can be the primary winding, and two second windings 900 can be the secondary winding, through all being provided with the secondary winding in the both sides of primary winding, can effectively reduce the leakage inductance of this product.

Referring to fig. 2, in some embodiments of the present invention, the magnetic core further includes at least two first connection portions 1000 and at least two second connection portions 1100, each second winding 900 is provided with a first pin 910 and a second pin 920, respectively, the first pins 910 located on the same magnetic core center pillar are connected to the same first connection portion 1000, and the second pins 920 located on the same magnetic core center pillar are connected to the same second connection portion 1100.

Specifically, a first pin 910 and a second pin 920 are disposed at the rear end of each second winding 900, and the first pin 910 and the second pin 920 are respectively used as an incoming terminal and an outgoing terminal of the second winding 900. The first pins 910 of the second windings 900 located on the same core leg are connected to the same first connection 1000, and the second pins 920 of the second windings 900 located on the same core leg are connected to the same second connection 1100. The mode that first pin 910 is connected with first connecting portion 1000 is the solder wire welding, and the mode that second pin 920 is connected with second connecting portion 1100 also is the solder wire welding, and first connecting portion 1000 and second connecting portion 1100 can be wire, sheetmetal, copper post etc. for the material that can electrically conduct the embodiment of the utility model provides an in, first connecting portion 1000 and second connecting portion 1100 are the copper post.

The second winding 900 on the same magnetic core center pillar is fixedly connected through the copper pillar, the parallel connection of the second winding 900 on the same magnetic core center pillar can be realized, and the structural stability of the second winding 900 can be enhanced.

Referring to fig. 2, in some embodiments of the present invention, the first pins 910 located on the same magnetic core center pillar are disposed opposite to each other in a vertical direction, and the second pins 920 located on the same magnetic core center pillar are disposed opposite to each other in the vertical direction.

By such an arrangement, the distance between the first pins 910 and the distance between the second pins 920 in the same core leg can be reduced, so that the first connection portion 1000 can be connected to the first pins 910 in the same core leg, and the second connection portion 1100 can be connected to the second pins 920 in the same core leg, thereby reducing the lengths of the first connection portion 1000 and the second connection portion 1100.

In some embodiments of the present invention, the fixing portion 1200 is further included, the fixing portion 1200 is disposed between the second winding 900 and the first common core holder 100, a plurality of fixing holes 1210 are disposed on the fixing portion 1200, and the lower end of the first connecting portion 1000 and the lower end of the second connecting portion 1100 are respectively inserted into the corresponding fixing holes 1210.

Referring to fig. 3 and 4, the fixing portion 1200 is a plate-shaped structure and is disposed between the first winding 800 and the first common core print 100. The rear end of the fixing portion 1200 is provided with a plurality of fixing holes 1210, and the lower ends of the first and second connecting portions 1000 and 1100 are inserted into the corresponding fixing holes 1210. Through setting up fixed orifices 1210, be convenient for carry out the management and control to the position of first connecting portion 1000 and second connecting portion 1100 to can be fixed in first connecting portion 1000 and second connecting portion 1100 in the fixed orifices 1210 that corresponds through the mode that splices, improve the structural strength of this product.

In some embodiments of the present invention, the fixing portion 1200 is further provided with a plurality of wire holes 1220, and the wire inlet end and the wire outlet end of the first winding 800 are respectively inserted into the corresponding wire holes 1220.

Referring to fig. 3 and 4, the front end of the fixing portion 1200 is further provided with a plurality of wire holes 1220, the wire inlet end and the wire outlet end of the first winding 800 are inserted into the corresponding wire holes 1220, so that the positions of the wire inlet end and the wire outlet end of the first winding 800 are conveniently controlled, the wire inlet end and the wire outlet end of the first winding 800 can be fixed in the corresponding wire holes 1220 in a gluing manner, and the structural strength of the product is improved.

In some embodiments of the present invention, the incoming line end and the outgoing line end of each first winding 800 are located at the front side of the first common core print 100, and each first pin 910 and each second pin 920 are located at the rear side of the first common core print 100.

Referring to fig. 4, the wire inlet end and the wire outlet end of the first winding 800 are the wire inlet end and the wire outlet end of the primary winding, the first pin 910 and the second pin 920 are the wire inlet end and the wire outlet end of the secondary winding, and the wire inlet end and the wire outlet end of each first winding 800 are both arranged on the front side of the first common core holder 100, and the wire inlet end and the wire outlet end of each first pin 910 and the second pin 920 are both arranged on the rear side of the first common core holder 100, so that the distance between the wire inlet end and the wire outlet end of the primary winding and the distance between the wire inlet end and the wire outlet end of the secondary winding are increased, and in actual use, the first winding 800 and the second winding 900 are isolated by an insulating material, so that the safety distance of the product is effectively increased. It is worth mentioning that the safety distance in the embodiment of the present invention is the electric clearance and the creepage distance.

Referring to fig. 2, in some embodiments of the present invention, a second common magnetic core holder 200 is further included, and the left and right sides of the second common magnetic core holder 200 and the first common magnetic core holder 100 are further respectively provided with a magnetic core side column.

Specifically, the second common magnetic core holder 100 and the first common magnetic core holder 200 are disposed opposite to each other from top to bottom, and the first magnetic core side column 600, the first magnetic core center column 300, the second magnetic core center column 400, the third magnetic core center column 500, and the second magnetic core side column 700 are disposed between the first common magnetic core holder 100 and the second common magnetic core holder 200 from left to right. Through increasing the public magnetic core seat 200 of second, first magnetic core side post 600 and second magnetic core side post 700, can increase the magnetic circuit, reduce the area that the winding exposes outside, promote the interference killing feature and the magnetic flux of this product.

In some embodiments of the present invention, each second winding 900 is formed by a copper bar. Referring to fig. 2, each second winding 900 may be stacked by one or more copper bars, and the number of copper bars to be used specifically may be set according to the number ratio of turns of the primary winding and the secondary winding of the transformer, which is not limited by the present invention. Through constitute second winding 900 by the copper bar, be convenient for can reduce the volume of second winding 900 to further reduce the volume of this product.

In some embodiments of the present invention, the incoming line end and the outgoing line end of each first winding 800 are located at the front side of the first common core print 100, and the incoming line end and the outgoing line end of each second winding 900 are located at the back side of the first common core print 100. The wire inlet end and the wire outlet end of the first winding 800 are arranged on the front side of the first public magnetic core holder 100, and the wire inlet end and the wire outlet end of the second winding 900 are arranged on the rear side of the first public magnetic core holder 100, so that the safety distance of the product is increased conveniently.

According to the utility model discloses vehicle mounted power of second aspect embodiment through adopting the integrated transformer of magnetism of above-mentioned first aspect embodiment, has following beneficial effect at least: reduce the product volume, restrain the ripple current of the product and improve the using effect of the product.

The magnetic integrated transformer of the embodiment of the present invention is described below as a specific embodiment, and it should be understood that the following description is only exemplary and not a specific limitation of the present invention.

Referring to fig. 1, the magnetic integrated transformer according to the embodiment of the present invention includes a second common magnetic core holder 200 and a first common magnetic core holder 100 disposed up and down, and a first magnetic core side column 600, a first magnetic core center column 300, a second magnetic core center column 400, a third magnetic core center column 500, and a second magnetic core side column 700 disposed between the first common magnetic core holder 100 and the second common magnetic core holder 200 from left to right.

The three first windings 800 are respectively wound around the middle portions of the first, second and third magnetic core center pillars 300, 400 and 500, and the six second windings 900 are respectively wound around the upper and lower ends of the first magnetic core center pillar 300, the upper and lower ends of the second magnetic core center pillar 400 and the upper and lower ends of the third magnetic core center pillar 500. The rear end of every second winding 900 all is provided with first pin 910 and second pin 920, and relative setting and through first connecting portion 1000 fixed connection about being located first pin 910 on same magnetic core center pillar, relative setting and through second connecting portion 1100 fixed connection about being located second pin 920 on same magnetic core center pillar, first connecting portion 1000 and second connecting portion 1100 are the copper post, and every second winding 900 comprises the copper bar.

The fixing portion 1200 is a plate-shaped structure, the fixing portion 1200 is disposed between the second winding 900 and the first common core print 100, the front end of the fixing portion 1200 is provided with six wire holes 1220, and the wire inlet end and the wire outlet end of the three first windings 800 are respectively inserted into the wire holes 1220 at the front end of the fixing portion 1200 and fixed with the wire holes 1220 by gluing. The rear end of the fixing portion 1200 is provided with six fixing holes 1210, and the three first connecting portions 1000 and the three second connecting portions 1100 are respectively inserted into the fixing holes 1210 at the rear end of the fixing portion 1200.

According to the combined transformer provided by the embodiment of the utility model, the three transformers can be integrated together by winding the windings in the three magnetic cores, so that the volume can be effectively reduced and the ripple current can be effectively inhibited; a structure of a secondary winding, a primary winding and a secondary winding is formed by arranging a first winding 800 and two second windings 900 on the center pillar of each magnetic core, so that the leakage inductance can be reduced; the first connection part 1000 and the second connection part 1100 are both copper cylinders and are fixedly connected with the two second windings 900 positioned on the same magnetic core center cylinder, so that the structural stability can be improved; the safety distance can be increased by arranging the wire inlet end and the wire outlet end of the first winding 800 at the front side of the first common magnetic core holder 100 and arranging the wire inlet end and the wire outlet end of the second winding 900 at the rear side of the first common magnetic core holder; by arranging the fixing part 1200, the fixing hole 1210 and the wire guide 1220 are arranged on the fixing part 1200, so that the positions of the wire inlet and outlet ends of each winding are conveniently controlled, and the product is conveniently installed; the second winding 900 is composed of copper bars, so that the volume of the product can be further reduced; through setting up second public magnetic core seat 200, first magnetic core side post 600 and second magnetic core side post 700, can increase the magnetic circuit, can reduce the area that the winding exposes outside.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. A magnetically integrated transformer, comprising:

the upper end surface of the first common magnetic core seat is provided with at least two magnetic core middle columns;

each first winding is wound on the corresponding magnetic core center pillar;

and every two second windings are respectively wound on the corresponding magnetic core middle column and are respectively positioned at the upper side and the lower side of the corresponding first winding.

2. A magnetically integrated transformer according to claim 1, wherein: the magnetic core is characterized by further comprising at least two first connecting parts and at least two second connecting parts, wherein each second winding is provided with a first pin and a second pin respectively, the first pins on the magnetic core center pillars are connected to the same first connecting parts, and the second pins on the magnetic core center pillars are connected to the same second connecting parts.

3. A magnetically integrated transformer according to claim 2, wherein: the first pins located on the same magnetic core center pillar are arranged oppositely along the vertical direction, and the second pins located on the same magnetic core center pillar are arranged oppositely along the vertical direction.

4. A magnetically integrated transformer according to claim 2 or 3, wherein: the first winding and the second winding are arranged on the first public magnetic core seat, the fixing part is arranged between the second winding and the first public magnetic core seat, a plurality of fixing holes are formed in the fixing part, and the lower ends of the first connecting part and the second connecting part are respectively inserted into the corresponding fixing holes.

5. The magnetically integrated transformer of claim 4, wherein: the fixed part is also provided with a plurality of wire holes, and the wire inlet end and the wire outlet end of the first winding are respectively inserted into the corresponding wire holes.

6. A magnetically integrated transformer according to claim 2, 3 or 5, wherein: the wire inlet end and the wire outlet end of each first winding are located on the front side of the first common magnetic core seat, and each first pin and each second pin are located on the rear side of the first common magnetic core seat.

7. A magnetically integrated transformer according to any of claims 1 to 3, wherein: the magnetic core comprises a magnetic core center pillar and is characterized by further comprising a second public magnetic core seat arranged at the upper end of the magnetic core center pillar, and magnetic core side pillars are further arranged on the left side and the right side of the second public magnetic core seat and the left side and the right side of the first public magnetic core seat respectively.

8. A magnetically integrated transformer according to any of claims 1 to 3, wherein: each second winding is composed of copper bars.

9. A magnetically integrated transformer according to claim 1, wherein: the wire inlet end and the wire outlet end of each first winding are positioned on the front side of the first common magnetic core seat, and the wire inlet end and the wire outlet end of each second winding are positioned on the rear side of the first common magnetic core seat.

10. A vehicle power supply, characterized by comprising a magnetically integrated transformer according to any one of claims 1 to 9.

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