CN215007856U

CN215007856U - High-efficiency low-loss magnetic integrated transformer

Info

Publication number: CN215007856U
Application number: CN202121201612.9U
Authority: CN
Inventors: 曾宪福; 谷波; 姚平; 吴俊伟
Original assignee: Shenzhen Yamaxi Electronics Co ltd
Current assignee: Shenzhen Yamaxi Electronics Co ltd
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2021-12-03
Anticipated expiration: 2031-06-01

Abstract

The utility model discloses a high-efficiency low-loss magnetic integrated transformer, which comprises a base, the top of the base is provided with a first magnetic core and a second magnetic core, the top of the base is also provided with two windings, the two windings are symmetrically arranged at the joint of the first magnetic core and the second magnetic core, a connecting mechanism is arranged between the first magnetic core and the second magnetic core, and the connecting mechanism comprises two connecting strips and four connecting clamps; this patent adopts the integrated magnetic core of magnetism to be changed into the integrated magnetic core equipment of a width of cloth magnetism by many pairs of magnetic core equipment to the volume of transformer has been reduced, compare with many pairs of magnetic cores for traditional twins, not only can improve the power of converter, can reduce input, output current ripple moreover effectively, improve the efficiency of transformer, and through setting up the coupling mechanism who comprises connecting strip and connection clamp, make and to obtain good being connected between first magnetic core and the second magnetic core.

Description

High-efficiency low-loss magnetic integrated transformer

Technical Field

The utility model belongs to the technical field of the integrated transformer of magnetism, concretely relates to high efficiency low-loss magnetism integrated transformer.

Background

The magnetic integration technology is that two or more Discrete Devices (DM) in a converter, such as inductors, transformers and the like, are wound on a pair of magnetic cores and are structurally centralized together, so that the size and the weight of the magnetic devices can be reduced, current ripples can be reduced sometimes, the loss of the magnetic devices can be reduced, and the dynamic performance of a power supply can be improved.

The equipment method commonly used of current magnetism integrated transformer adopts twins solenoid, and the power that satisfies the design demand is assembled in parallel with many pairs of magnetic cores of frameless encapsulation, and this technology eddy current loss is big, and the complicated manufacturing cost of assembly process is high to do not have any coupling mechanism between two magnetic cores on the current magnetism integrated transformer, can not obtain good spacing when the equipment, also take place the separation easily when follow-up the use simultaneously, for this reason the utility model provides a high efficiency low loss magnetism integrated transformer.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high efficiency low-loss magnetism integrated transformer to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the high-efficiency low-loss magnetic integrated transformer comprises a base, wherein a first magnetic core and a second magnetic core are arranged at the top of the base, the top of the base is also provided with two windings which are symmetrically arranged at the joint of the first magnetic core and the second magnetic core, a connecting mechanism is arranged between the first magnetic core and the second magnetic core, the connecting mechanism comprises two connecting strips and four connecting hoops, the two ends of the inner sides of the first magnetic core and the second magnetic core are respectively provided with a slot corresponding to the connecting bar, the inner walls of the two sides of the slot are respectively provided with a first through hole corresponding to the connecting clamp in a penetrating way, the two ends of the connecting strip are respectively provided with a second through hole in a penetrating way, the both ends of connecting strip insert respectively to the slot of first magnetic core and second magnetic core tip in, connect the clamp through the second perforation through the tip of connecting strip, and connect the both ends of clamp and take respectively in the first perforation on slot both sides inner wall.

Preferably, the surfaces of the two sides of the connecting clamp are provided with semicircular bulges, the inner walls of the two sides of the second through hole are provided with side clamping grooves corresponding to the semicircular bulges, and the semicircular bulges are clamped in the side clamping grooves.

Preferably, the connection clamp and the semicircular bulge are of an integrated structure, and the connection clamp and the semicircular bulge are both made of elastic materials.

Preferably, be equipped with coupling assembling between second magnetic core and the base, coupling assembling includes T-shaped piece, rotatory cardboard and bottom block, rotatory cardboard is rotatory to be set up in the bottom of T-shaped piece, two the bottom block symmetry is fixed on the bottom surface of base, the inboard surface of second magnetic core runs through and is seted up the T-shaped groove corresponding with T-shaped piece, the bottom of T-shaped piece runs through between base to two bottom blocks, the both ends of rotatory cardboard block respectively at the bottom surface of two bottom blocks.

Preferably, the bottom surface of the bottom block is provided with an integrated circular protrusion, two ends of the rotary clamping plate are provided with circular clamping holes corresponding to the circular protrusions, and the circular protrusions are clamped in the circular clamping holes.

Preferably, a rotating groove is formed in the bottom end of the T-shaped block, an integrated T-shaped rotating block is arranged on the top surface of the rotating clamping plate, and the T-shaped rotating block is located in the rotating groove.

Preferably, the top surface symmetry of base is provided with the location strip of two integral types, the constant head tank has been seted up on the bottom surface of second magnetic core, the location strip is in the constant head tank.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this patent adopts the integrated magnetic core of magnetism to be changed into the integrated magnetic core equipment of a width of cloth magnetism by many pairs of magnetic core equipment, thereby the volume of transformer has been reduced, compare with many pairs of magnetic cores for traditional twins, not only can improve the power of converter, and can reduce the input effectively, the output current ripple, improve the efficiency of transformer, and through setting up the coupling mechanism who comprises connecting strip and connection clamp, make and to obtain good being connected between first magnetic core and the second magnetic core, thereby improve the convenience when assembling, also more stable when follow-up the use simultaneously.

2. Through the coupling assembling that the setting is constituteed by T-shaped piece, rotatory cardboard and bottom block for can obtain stable being connected between second magnetic core and the base, stability when further improving follow-up use.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a front sectional view of the present invention;

FIG. 3 is an enlarged view of a portion of the area A in FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of a portion of the area B in FIG. 2 according to the present invention;

FIG. 5 is a bottom view of the junction between the rotary clamping plate and the bottom block;

in the figure: 1. a first magnetic core; 2. a second magnetic core; 3. a base; 4. a bottom block; 5. winding; 6. a connecting strip; 7. connecting a clamp; 8. a T-shaped block; 9. rotating the clamping plate; 10. a slot; 11. a first perforation; 12. a second perforation; 13. a semicircular bulge; 14. a side card slot; 15. a T-shaped slot; 16. a circular protrusion; 17. and a circular clamping hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1 to 5, the present invention provides a technical solution: a high-efficiency low-loss magnetic integrated transformer comprises a base 3, wherein a first magnetic core 1 and a second magnetic core 2 are arranged at the top of the base 3, the first magnetic core 1 and the second magnetic core 2 form a magnetic integrated magnetic core assembly, so that the volume of the transformer is reduced, two windings 5 are further arranged at the top of the base 3, the two windings 5 are symmetrically arranged at the joint of the first magnetic core 1 and the second magnetic core 2, a connecting mechanism is arranged between the first magnetic core 1 and the second magnetic core 2 and comprises two connecting strips 6 and four connecting hoops 7, slots 10 corresponding to the connecting strips 6 are respectively arranged at the two inner sides of the first magnetic core 1 and the second magnetic core 2, first through holes 11 corresponding to the connecting hoops 7 are respectively arranged on the inner walls at the two sides of the slots 10, second through holes 12 are respectively arranged at the two ends of the connecting strips 6, the two ends of the connecting strips 6 are respectively inserted into the slots 10 at the end parts of the first magnetic core 1 and the second magnetic core 2, connect clamp 7 and pass through the tip of second perforation 12 through connection strip 6, and the both ends of connecting clamp 7 are taken respectively in the first perforation 11 on the inner wall of slot 10 both sides, the both sides surface of connecting clamp 7 all is provided with semi-circular arch 13, the both sides inner wall of second perforation 12 has all been seted up with the corresponding side draw-in groove 14 of semi-circular arch 13, semi-circular arch 13 card is in side draw-in groove 14, connect clamp 7 and semi-circular arch 13 formula structure as an organic whole, connect clamp 7 and semi-circular arch 13 by the elastic material component, the elastic material specifically is rubber here, make and can obtain good connection between first magnetic core 1 and the second magnetic core 2.

In this embodiment, preferably, a connection assembly is disposed between the second magnetic core 2 and the base 3, the connection assembly includes a T-shaped block 8, a rotation clamping plate 9 and bottom blocks 4, the rotation clamping plate 9 is rotatably disposed at the bottom end of the T-shaped block 8, the two bottom blocks 4 are symmetrically fixed on the bottom surface of the base 3, a T-shaped groove 15 corresponding to the T-shaped block 8 is formed on the inner side surface of the second magnetic core 2, the bottom end of the T-shaped block 8 penetrates between the base 3 and the two bottom blocks 4, the rotation clamping plate 9 is made of a rubber material member, two ends of the rotation clamping plate 9 are respectively clamped on the bottom surfaces of the two bottom blocks 4, an integrated circular protrusion 16 is disposed on the bottom surface of each bottom block 4, circular clamping holes 17 corresponding to the circular protrusions 16 are formed at two ends of the rotation clamping plate 9, the circular protrusion 16 is clamped in the circular clamping holes 17, a rotation groove is formed inside the bottom end of the T-shaped block 8, an integrated T-shaped rotation block is disposed on the top surface of the rotation clamping plate 9, the T-shaped rotating block is positioned in the rotating groove, so that the second magnetic core 2 and the base 3 can be stably connected.

In this embodiment, preferably, the top surface symmetry of base 3 is provided with the location strip of two integral types, and the constant head tank has been seted up to the bottom surface of second magnetic core 2, and the location strip is in the constant head tank for second magnetic core 2 can obtain the location when being connected with base 3 and align.

The utility model discloses a theory of operation and use flow: this patent adopts the integrated magnetic core of magnetism to be changed into the integrated magnetic core equipment of a pair of magnetism by the equipment of many pairs of magnetic cores to reduced the volume of transformer, integrated transformer is according to the unchangeable principle of total air gap length, does not change the distribution of direct current magnetic flux when changing center pillar, side column air gap distribution, also does not change the distribution of direct current magnetic field intensity Bdc. According to the relation between the voltage and the flux variation, the variation of the alternating current flux of the wound transformer is determined by the input voltage and the duty ratio D, and the relation between the input voltage and the output voltage is not changed due to the staggered reverse excitation integration, namely the duty ratio D is not changed before and after the integration. Therefore, the variation of the alternating current magnetic flux of the front and rear integrated side columns is unchanged, the variation trends of the magnetic flux density of the two side columns in each working stage are opposite, the alternating current magnetic flux density of the middle column after integration is reduced, the magnetic core loss of the middle column is reduced, and the magnetic flux density variation frequency of the middle column is twice that of the side columns;

when the first magnetic core 1 and the second magnetic core 2 are assembled, the first magnetic core 1 is firstly arranged on the top of the second magnetic core 2, two ends of the connecting strip 6 can be respectively inserted into the slots 10 at the end parts of the first magnetic core 1 and the second magnetic core 2, then the connecting hoop 7 is inserted into the inner side of the first through hole 11 from the connecting part of the first magnetic core 1 and the second magnetic core 2, so that the connecting hoop 7 can penetrate through the end part of the connecting strip 6 until two ends of the connecting hoop 7 can be respectively clamped in the first through holes 11 at two sides of the slot 10, and the semicircular bulge 13 is clamped in the side clamping groove 14, namely the connecting strip 6 can be clamped in the slot 10 through the connecting hoop 7, thereby completing the connection of the first magnetic core 1 and the second magnetic core 2, so that the first magnetic core 1 and the second magnetic core 2 can be well connected, thereby improving the convenience in assembly, and simultaneously being more stable in subsequent use, after the first magnetic core 1 and the second magnetic core 2 are connected, winding 5 is wound at the connection position of the first magnetic core 1 and the second magnetic core 2;

when first magnetic core 1 after needs will make up the connection and second magnetic core 2 install at base 3's top, earlier arrange second magnetic core 2 in base 3's top, cause the locating strip to get into the constant head tank, then rotate rotatory cardboard 9 earlier and align to the bottom with T-shaped piece 8, then insert T-shaped piece 8 and rotatory cardboard 9T-shaped groove 15, cause T-shaped piece 8's bottom to run through to between two end pieces 4, will rotate cardboard 9 power rotation ninety degrees this moment, cause the both ends of rotatory cardboard 9 to be in the bottom of end piece 4 respectively, and make circular protruding 16 card go into the inboard of circular card hole 17, can accomplish being connected of second magnetic core 2 and base 3, thereby make and to obtain stable being connected between second magnetic core 2 and the base 3, further improve the stability when subsequently using.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. High efficiency low-loss magnetism integrated transformer, including base (3), its characterized in that: the magnetic core connecting device is characterized in that a first magnetic core (1) and a second magnetic core (2) are arranged at the top of the base (3), two windings (5) are further arranged at the top of the base (3), the two windings (5) are symmetrically arranged at the joint of the first magnetic core (1) and the second magnetic core (2), a connecting mechanism is arranged between the first magnetic core (1) and the second magnetic core (2), the connecting mechanism comprises two connecting strips (6) and four connecting hoops (7), slots (10) corresponding to the connecting strips (6) are formed in the two ends of the inner sides of the first magnetic core (1) and the second magnetic core (2), first through holes (11) corresponding to the connecting hoops (7) are formed in the inner walls of the two sides of each slot (10) in a penetrating mode, second through holes (12) are formed in the two ends of the connecting strips (6), the two ends of the connecting strips (6) are respectively inserted into the slots (10) at the end portions of the first magnetic core (1) and the second magnetic core (2), the connection hoop (7) penetrates through the end part of the connection strip (6) through the second through hole (12), and the two ends of the connection hoop (7) are respectively lapped in the first through holes (11) on the inner walls of the two sides of the slot (10).

2. A high efficiency low loss magnetically integrated transformer as claimed in claim 1, wherein: the two side surfaces of the connecting clamp (7) are provided with semicircular bulges (13), the inner walls of the two sides of the second through hole (12) are provided with side clamping grooves (14) corresponding to the semicircular bulges (13), and the semicircular bulges (13) are clamped in the side clamping grooves (14).

3. A high efficiency low loss magnetically integrated transformer as claimed in claim 2, wherein: the connecting clamp (7) and the semicircular bulges (13) are of an integrated structure, and the connecting clamp (7) and the semicircular bulges (13) are made of elastic materials.

4. A high efficiency low loss magnetically integrated transformer as claimed in claim 1, wherein: be equipped with coupling assembling between second magnetic core (2) and base (3), coupling assembling includes T-shaped piece (8), rotatory cardboard (9) and bottom block (4), rotatory bottom that sets up in T-shaped piece (8) of rotatory cardboard (9), two bottom block (4) symmetry is fixed on the bottom surface of base (3), the inboard surface of second magnetic core (2) runs through and sets up T-shaped groove (15) corresponding with T-shaped piece (8), the bottom of T-shaped piece (8) runs through between base (3) to two bottom blocks (4), the both ends of rotatory cardboard (9) are blocked respectively on the bottom surface of two bottom blocks (4).

5. The high efficiency, low loss magnetically integrated transformer of claim 4, wherein: the bottom surface of the bottom block (4) is provided with integrated circular protrusions (16), two ends of the rotating clamping plate (9) are provided with circular clamping holes (17) corresponding to the circular protrusions (16), and the circular protrusions (16) are clamped in the circular clamping holes (17).

6. The high efficiency, low loss magnetically integrated transformer of claim 4, wherein: the rotary groove is formed in the bottom end of the T-shaped block (8), the integrated T-shaped rotary block is arranged on the top surface of the rotary clamping plate (9), and the T-shaped rotary block is located in the rotary groove.

7. The high efficiency, low loss magnetically integrated transformer of claim 4, wherein: the top surface symmetry of base (3) is provided with the location strip of two integral types, the constant head tank has been seted up on the bottom surface of second magnetic core (2), the location strip is in the constant head tank.