CN221304422U - Skeleton texture for inductance transformer and integrated inductance transformer thereof - Google Patents
Skeleton texture for inductance transformer and integrated inductance transformer thereof Download PDFInfo
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- CN221304422U CN221304422U CN202323102006.3U CN202323102006U CN221304422U CN 221304422 U CN221304422 U CN 221304422U CN 202323102006 U CN202323102006 U CN 202323102006U CN 221304422 U CN221304422 U CN 221304422U
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Abstract
The invention discloses a skeleton structure for an inductance transformer and an integrated inductance transformer thereof, which comprises a skeleton body, wherein the skeleton body comprises an upper skeleton, a lower skeleton and wiring terminals, wherein the upper skeleton and the lower skeleton are stacked, the wiring terminals are arranged on two sides of the lower skeleton, a first mounting hole penetrating through the lower skeleton is arranged on the upper skeleton, a second mounting hole is arranged on the lower skeleton, a circle of first groove is arranged on the outer side of the upper skeleton in a ring mode, a circle of second groove is arranged on the outer side of the lower skeleton in a ring mode, two magnetic core center posts to be mounted are respectively inserted into the first mounting hole and the second mounting hole, coils to be wound are respectively arranged in the first groove and the second groove, an inductance is formed through combination of the coils mounted in the second groove and the magnetic cores in the first mounting hole, and the transformer is formed through combination of the coils mounted in the first groove and the second groove. The problem that the leakage inductance precision in the integrated inductance transformer cannot be controlled and the magnetic core magnetic induction intensity loss is reduced by the existing framework can be solved, and the service life of the inductance transformer is prolonged.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to a skeleton structure for an inductance transformer.
Background
In electronic circuits, the simultaneous use of an electronic transformer and an inductor is a common circuit design, wherein the transformer and the inductor respectively play a role, and generally, the transformer and the inductor respectively have independent frameworks and magnetic cores, which respectively play roles of coil supporting and magnetic force line concentration. Along with the development of technology, integrated design with transformer and inductance combination has also appeared, but present integrated design is when improving the structure, all is towards the structure of transformer or inductance and improves to make both realize integrated effect, improvement to the skeleton is few, leads to present inductance transformer to realize integrated design through the improvement of skeleton, and improves from the aspect of the product, and the improvement degree of difficulty is big, and the technology is complicated and to the big or small precision control degree of difficulty of leakage inductance, and magnetic induction intensity (B) of magnetic core is not optimized in the aspect of the loss, leads to the life of transformer not promoting.
Meanwhile, after the inductor is integrated, the existing transformer generally needs three coils to be matched for use, the transformer and the coils of the inductor cannot be commonly used, and the existing integrated inductor transformer is characterized in that the coils are symmetrically surrounded by taking a magnetic core as an axis, and when the leakage inductance of the product is adjusted, the product is generally adjusted by changing the position distance between the two coils, so that the size of the product is increased, the leakage inductance precision is low, and the influence of the winding position is great and difficult to control; in another method, a magnetic sheet is placed between two coils, and the size of leakage inductance is controlled by the magnetic sheet, but the position of the magnetic sheet in the structure is difficult to locate and the accuracy of leakage inductance is also difficult to control.
Secondly, no matter for the transformer or the inductor itself, the magnetic induction intensity (B) of the magnetic core does not play a role in reducing the loss condition of the magnetic core, which is affected by the size of the magnetic induction intensity (B), and the service life of the whole transformer cannot be further improved because the magnetic induction intensity (B) of the magnetic core is difficult to reduce in the conventional structure.
Disclosure of Invention
In order to solve some or some technical problems existing in the prior art, one of the purposes of the application is to provide a skeleton structure for an inductance transformer, which can solve the problems that the existing skeleton can not control the leakage inductance precision in the integrated inductance transformer and reduce the magnetic core magnetic induction intensity (B) loss, and improve the service life of the inductance transformer.
In order to solve some or some technical problems existing in the prior art, the second purpose of the application is to provide an integrated inductive transformer, which can solve the problems that the leakage inductance of the existing integrated inductive transformer is not easy to accurately control and the magnetic induction intensity cannot be further reduced, and has the advantages of small whole volume, low production cost and long service life.
In order to solve the above existing technical problems, one of the purposes of the present application is achieved by adopting the following technical scheme:
The utility model provides a skeleton texture for inductance transformer, includes the skeleton body, the skeleton body is including piling up last skeleton and the lower skeleton that sets up, establish the binding post of skeleton both sides down, be equipped with one on the last skeleton and run through the first mounting hole of skeleton down, be equipped with the second mounting hole on the lower skeleton, the outside ring of going up the skeleton is equipped with round first recess, the outside ring of skeleton is equipped with round second recess down, and two magnetic core center posts to be installed insert respectively in first mounting hole with in the second mounting hole, the coil of waiting to twine is established respectively in first recess with in the second recess, through installing coil in the second recess with the magnetic core combination in the second mounting hole forms the inductance, through installing coil in first recess and the second recess and the magnetic core combination in the first mounting hole forms the transformer.
Preferably, one side or both sides of the upper frame are provided with outwardly protruding spacers, and the distance between the first mounting hole and the second mounting hole is controlled by the spacers on one side.
Preferably, a third groove which is concave inwards is formed in the bottom of the lower framework, the third groove is formed between the first mounting hole and the second mounting hole, and the creepage distance between the first mounting hole and the second mounting hole is increased through the third groove.
Preferably, the top of the upper framework is provided with two first baffles protruding upwards, and a plurality of reinforcing ribs with triangular structures are arranged between the first baffles and the partition plates.
Preferably, two second baffles protruding downwards are arranged at the bottom of the lower framework, the two second baffles are respectively arranged at the outer sides of the first mounting holes and the second mounting holes, and the outer sides of magnetic cores to be mounted are limited through the second baffles and separated from the wiring terminals.
In order to solve the above existing technical problems, one of the purposes of the present application is achieved by adopting the following technical scheme:
An integrated inductive transformer, characterized in that: including skeleton body, establish first magnetic core, second magnetic core, first coil and the second coil on the skeleton body, first magnetic core is established in the first mounting hole, the second magnetic core is established in the second mounting hole, first coil is established in the first recess, the second coil is established in the second recess, the second coil with the second magnetic core combination forms the inductance, first magnetic core first coil and the second coil combination forms the transformer, open air between the center pillar of second magnetic core, through open air regulation the leakage inductance volume of inductance, the magnetic field that the second coil produced passes through first magnetic core with the second magnetic core shunts, thereby reduces first magnetic core with the magnetic induction intensity of second magnetic core.
Preferably, the first magnetic core and the second magnetic core respectively include an upper magnetic core and a lower magnetic core, and center posts of the two upper magnetic cores and the lower magnetic core respectively extend from two ends of the first mounting hole and the second mounting hole.
Compared with the prior art, the invention has the beneficial effects that:
1. Through the improvement to the skeleton texture, make the transformer behind integrated inductance, it is more convenient to the precision control of leakage inductance, and through the change to the winding mode of coil on the skeleton, make the magnetic core magnetic induction intensity (B) loss in transformer and the inductance less to the life of improvement inductance transformer that can be better, simple structure, the equipment is convenient, and the technology is simpler.
2. The integrated inductor transformer can solve the problems that the leakage inductance of the existing integrated inductor transformer is difficult to accurately control and the magnetic induction intensity cannot be further reduced, and has the advantages of small overall size, low production cost and long service life.
Drawings
FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of embodiment 2 of the present invention;
In the figure: 1. a skeleton body; 2. a first mounting hole; 3. a connection terminal; 4. a lower skeleton; 5. a first groove; 6. an upper framework; 7. a first baffle; 8. reinforcing ribs; 9. a partition plate; 10. a second groove; 11. a second baffle; 12. a second mounting hole; 13. a third groove; 14. a first coil; 15. a second coil; 16. a second magnetic core; 17. a first magnetic core; 171. a lower magnetic core; 172. and (5) an upper magnetic core.
Detailed Description
The present application will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.
The terms "first," "second," and the like in this specification are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
Example 1:
The utility model provides a skeleton texture for inductance transformer, includes skeleton body 1, skeleton body 1 is including piling up last skeleton 6 and lower skeleton 4, the establishing of setting of skeleton 4 both sides down binding post 3, be equipped with one on the last skeleton 6 and run through the first mounting hole 2 of skeleton 4 down, be equipped with second mounting hole 12 on the skeleton 4 down, the outside ring of going up the skeleton 6 is equipped with round first recess 5, the outside ring of skeleton 4 down is equipped with round second recess 10, and two magnetic core center posts to be installed insert respectively in first mounting hole 2 with in the second mounting hole 12, coil to be wound is established respectively in first recess 5 with in the second recess 10, through installing coil in the second recess 10 with the magnetic core combination in the second mounting hole 12 forms the inductance, through installing coil in first recess 5 and the second recess 10 and the combination in the first mounting hole 2 forms the transformer.
The skeleton texture itself comprises integrated into one piece's skeleton body 1 for the inductance transformer, and wherein, skeleton body 1 falls into two regions through last skeleton 6 and lower skeleton 4, and is L type distribution between last skeleton 6 and the lower skeleton 4, can make first mounting hole 2 and second mounting hole 12 form bottom parallel and level in the in-process of processing, but the top is the echelonment structure, first mounting hole 2 and second mounting hole 12 parallel arrangement. At the same time, a circle of first concave grooves 5 which are concave inwards are formed on the outer side of the upper framework 6, and a circle of second concave grooves 10 which are concave inwards are formed on the outer side of the lower framework 4. The magnetic core that constitutes the inductance is installed in second mounting hole 12, and the magnetic core that constitutes the transformer is then installed in first mounting hole 2, and then twine respectively in first recess 5 and the second recess 10 two sets of coils, thereby make skeleton body 1 pass through after binding post 3 put through the circuit, the magnetic core combination through the coil of installing in second recess 10 and in the second mounting hole 12 just forms the inductance, and just form the transformer after the magnetic core combination through the coil of installing in first recess 5 and second recess 10 and in first mounting hole 2, the magnetic core of transformer and the magnetic core of inductance carry out insulating separation through lower skeleton 4 between first mounting hole 2 and the second mounting hole 12, can avoid the problem of mutual interference between the two, simultaneously, through the improvement to skeleton body 1, can make the inductance transformer after the integration just need two sets of magnetic cores and two sets of coils just can realize integrated function, the quantity demand for the coil is less, the cost is lower. The coil in the second recess 10 when the winding, the center pillar of two installation back magnetic cores is bypassed respectively at both ends, and the magnetic field has been born simultaneously to two magnetic cores to make the magnetic induction intensity (B) of every magnetic core can reduce, the B reduces the loss that will reduce the magnetic core, thereby the load of reduction magnetic core that can be better, thereby promote the life-span of performance and product, the effectual problem that current skeleton can't reduce magnetic core magnetic induction intensity (B) loss of having solved. Meanwhile, when leakage inductance of the inductor is adjusted, the leakage inductance can be adjusted through the magnetic core opening air in the second mounting hole 12, so that accuracy control of the leakage inductance is more accurate, adjustment is more convenient, and the problem that the leakage inductance of the existing integrated inductor transformer is difficult to accurately control is effectively solved.
In a further improvement, one side or two sides of the upper framework 6 are provided with a baffle plate 9 protruding outwards, and the distance between the first mounting hole 2 and the second mounting hole 12 is controlled by the baffle plate 9 on one side.
Although the depth of the wound coil is generally smaller than that of the first groove 5, if the magnetic core in the second mounting hole 12 is not limited, the phenomenon that the distance between the magnetic core and the coil is too small due to the position of the magnetic core easily occurs in the production process. In order to solve the problem, in the production process, the partition plate 9 is overlapped with the upper convex ring formed by the upper framework 6 through the first groove 5, the length of the convex edge of one side, close to the second mounting hole 12, of the first groove 5 is made to be the minimum distance from the magnetic core 172 to the coil on the second mounting hole 12, one side of the magnetic core is limited through the partition plate 9, the side depth of the first groove 5 can be increased, the coil after winding is limited in the axial direction better, the minimum distance between the two magnetic cores can be accurately controlled through the partition plate 9, the purpose of controlling the creepage distance is achieved, the coil is prevented from contacting with the magnetic core in the second mounting hole 12 after winding, the partition plate 9 is generally symmetrically arranged, and the attractive appearance is better.
In a further improvement, a third groove 13 is formed in the bottom of the lower framework 4, the third groove 13 is formed between the first mounting hole 2 and the second mounting hole 12, and the creepage distance between the first mounting hole 2 and the second mounting hole 12 is increased through the third groove 13.
When integrating inductance and transformer, if the interval distance between the two is less, the creepage problem appears very easily to cause the potential safety hazard, and current common method is to increase the insulator thickness between the two, or increase the interval between two coils, thereby solves this problem, but current solution method ubiquitous volume grow problem. In order to reduce the overall volume of the product, an inward concave third groove 13 is added at the bottom of the lower framework 4, the third groove 13 is positioned between the first mounting hole 2 and the second mounting hole 12, and the creepage distance between the two magnetic cores can be increased at the same interval through the third groove 13, so that the volume of the framework body 1 can be smaller, the overall volume of the final control product is smaller, and meanwhile, the weight of the whole framework body 1 can be reduced through the design of the third groove 13, so that the weight of the whole product is lighter.
In a further improvement, two first baffles 7 protruding upwards are arranged at the top of the upper framework 6, and a plurality of reinforcing ribs 8 with triangular structures are arranged between the first baffles 7 and the partition plates 9.
In the installation, when the edge thickness that baffle 9 region is located is relatively bloodshot, is easily pressed deformation or collapse by the effort that produces behind the coil wire winding, and when making this region thick, influences whole weight and interval's control again easily, simultaneously, the magnetic core in the first mounting hole 2 also appears the problem of both sides and outside contact easily after the installation. Therefore, two first baffles 7 protruding upwards are installed at the top of the upper framework 6, the first baffles 7 and the partition plates 9 are connected through reinforcing ribs 8 of triangular structures, and the two sides of the installed magnetic cores can be limited through the first baffles 7, so that a protective effect is achieved, the magnetic cores are prevented from being in contact with the outside, the partition plates 9 can be supported and reinforced through the reinforcing ribs 8, and therefore the partition plates 9 can have enough stability after being thinned, and collapse phenomenon is avoided.
Still further, it is still improved to, the bottom of skeleton 4 is equipped with two bellied second baffles 11 down, and two second baffles 11 are established respectively in the outside of first mounting hole 2 with the outside of second mounting hole 12, the magnetic core outside of waiting to install is passed through second baffle 11 spacing and with binding post 3 separates.
Because the wiring terminal 3 convenient for inserting pins is formed on two sides of the edges of two sides of the lower end of the lower framework 4, in order to avoid the problem that coil outgoing wires touch adjacent magnetic cores when being welded with the wiring terminal 3, two second baffle plates 11 protruding downwards are formed at the bottom of the lower framework 4, the outer sides of the magnetic cores to be installed are limited through the outer second baffle plates 11 and are separated from the wiring terminal 3, the stability of the relative positions of the magnetic cores can be ensured, the independence of the wiring terminal 3 can be ensured, and therefore the processing of the wiring terminal 3 is facilitated.
Example 2:
As shown in fig. 2, an integrated inductive transformer comprises a skeleton body 1, a first magnetic core 17, a second magnetic core 16, a first coil 14 and a second coil 15 which are arranged on the skeleton body 1, wherein the first magnetic core 17 is arranged in a first mounting hole 2, the second magnetic core 16 is arranged in a second mounting hole 12, the first coil 14 is arranged in a first groove 5, the second coil 15 is arranged in a second groove 10, the second coil 15 and the second magnetic core 16 are combined to form an inductor, the first magnetic core 17, the first coil 14 and the second coil 15 are combined to form the transformer, air is generated between center posts of the second magnetic core 16, the leakage inductance quantity of the inductor is regulated through the air, and a magnetic field generated by the second coil 15 is split through the first magnetic core 17 and the second magnetic core 16, so that the magnetic induction intensity of the first magnetic core 17 and the second magnetic core 16 is reduced.
When the integrated inductance transformer is assembled, the first coil 14 is wound into the first groove 5, the second coil 15 is wound into the second groove 10, then the center post of the first magnetic core 17 is installed in the first installation hole 2, the second magnetic core 16 is installed in the second installation hole 12, and after the end part of the coil is connected with the wiring terminal 3, the second coil 15 and the second magnetic core 16 on the framework body 1 are combined to form an inductance through the adhesive tape, the first magnetic core 17, the first coil 14 and the second coil 15 are combined to form the transformer, meanwhile, the center post of the second magnetic core 16 is provided with air, when the leakage inductance of the inductance is controlled, the air leakage control precision of the inductance can be controlled through the distance of the air leakage, the leakage inductance precision of the inductance is controlled in a smaller range by adopting the control principle of the inductance of the transformer, the leakage inductance is controlled more easily and conveniently, and the problems existing leakage inductance passing through the distance adjustment or the magnetic sheet adjustment through the increase are effectively solved. The magnetic field generated by the second coil 15 in the working process is split through the first magnetic core 17 and the second magnetic core 16, so that the magnetic induction intensity of the first magnetic core 17 and the second magnetic core 16 is reduced, the loss of products can be reduced, the problems that the magnetic induction intensity (B) loss of the magnetic core cannot be reduced by the existing integrated inductive transformer are effectively solved by improving the performance and the service life of the products, and the service life of the integrated inductive transformer is longer than that of the existing products.
Further, the first magnetic core 17 and the second magnetic core 16 respectively include an upper magnetic core 172 and a lower magnetic core 171, and the center posts of the two upper magnetic cores 172 and the lower magnetic core 171 respectively extend from two ends of the first mounting hole 2 and the second mounting hole 12.
The air-break adjusting device is more convenient to adjust the air-break between the middle columns of the first magnetic core 17 and the second magnetic core 16, the installation difficulty is lower, and the process is simpler and more convenient.
The above embodiments are only preferred embodiments of the present application, and the scope of the present application is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present application are intended to be within the scope of the present application as claimed.
Claims (7)
1. The utility model provides a skeleton texture for inductance transformer, includes skeleton body (1), its characterized in that: the utility model provides a transformer, including skeleton body (1), skeleton body (1) are including piling up last skeleton (6) and lower skeleton (4) that set up, establish binding post (3) of skeleton (4) both sides down, be equipped with one on last skeleton (6) and run through first mounting hole (2) of skeleton (4) down, be equipped with second mounting hole (12) on skeleton (4) down, the outside ring of skeleton (6) is equipped with round first recess (5), the outside ring of skeleton (4) down is equipped with round second recess (10), and two magnetic core center posts to be installed insert respectively first mounting hole (2) with in second mounting hole (12), coil to be wound is established respectively in first recess (5) with in second recess (10), through install coil in second recess (10) with the magnetic core combination in second mounting hole (12) forms the inductance, through installing coil in first recess (5) and second recess (10) and in first mounting hole (2) magnetic core combination formation transformer.
2. The skeletal structure for an inductive transformer of claim 1, wherein: one side or two sides of the upper framework (6) are provided with outwards-protruding partition plates (9), and the distance between the first mounting holes (2) and the second mounting holes (12) is controlled through the partition plates (9) on one side.
3. The skeletal structure for an inductive transformer of claim 2, wherein: the bottom of lower skeleton (4) is equipped with an inwards sunken third recess (13), third recess (13) are established first mounting hole (2) with between second mounting hole (12), through third recess (13) increase creepage distance between first mounting hole (2) with second mounting hole (12).
4. The skeletal structure for an inductive transformer of claim 2, wherein: the top of the upper framework (6) is provided with two first baffle plates (7) protruding upwards, and a plurality of reinforcing ribs (8) with triangular structures are arranged between the first baffle plates (7) and the partition plates (9).
5. The skeletal structure for an inductive transformer of claim 4, wherein: the bottom of lower skeleton (4) is equipped with two bellied second baffles (11) downwards, and two second baffles (11) are established respectively first mounting hole (2) with the outside of second mounting hole (12), the magnetic core outside of waiting to install is passed through second baffle (11) spacing and with binding post (3) separate.
6. An integrated inductive transformer, characterized in that: the transformer comprises the skeleton structure for the induction transformer according to any one of claims 1 to 5, a first magnetic core (17), a second magnetic core (16), a first coil (14) and a second coil (15) which are arranged on the skeleton body (1), wherein the first magnetic core (17) is arranged in the first mounting hole (2), the second magnetic core (16) is arranged in the second mounting hole (12), the first coil (14) is arranged in the first groove (5), the second coil (15) is arranged in the second groove (10), the second coil (15) and the second magnetic core (16) are combined to form an inductor, the first magnetic core (17), the first coil (14) and the second coil (15) are combined to form a transformer, air-break is arranged between center posts of the second magnetic core (16), the leakage inductance of the inductor is adjusted through the air-break, and a magnetic field generated by the second coil (15) is arranged in the second groove (10), and the magnetic core (17) and the second magnetic core (16) are combined to form the magnetic induction.
7. An integrated inductive transformer as recited by claim 6, wherein: the first magnetic core (17) and the second magnetic core (16) respectively comprise an upper magnetic core (172) and a lower magnetic core (171), and the center posts of the upper magnetic core (172) and the lower magnetic core (171) respectively extend into the two ends of the first mounting hole (2) and the second mounting hole (12).
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