CN214203365U - Anti-interference planar transformer - Google Patents
Anti-interference planar transformer Download PDFInfo
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- CN214203365U CN214203365U CN202120251045.1U CN202120251045U CN214203365U CN 214203365 U CN214203365 U CN 214203365U CN 202120251045 U CN202120251045 U CN 202120251045U CN 214203365 U CN214203365 U CN 214203365U
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Abstract
The utility model relates to a transformer technical field, in particular to jam-proof planar transformer. The PCB comprises a magnetic core base, a magnetic core top seat and a plurality of layers of PCBs, wherein the magnetic core base and the magnetic core top seat are oppositely arranged, and the PCBs are arranged between the magnetic core base and the magnetic core top seat; a cylindrical magnetic core shaft is formed in the center of the magnetic core base, and flat coil windings are wound among the layers of the PCB; the PCB is arranged on the magnetic core shaft in a penetrating mode, and two sides of the PCB extend out of the outer side of the magnetic core base; and the two sides of the magnetic core base are provided with covering structures which are covered on the two sides of the PCB extending out. The containing cavity for containing the PCB extending side is formed through the covering structure, the part of the PCB extending outside is protected, the planar transformer is prevented from being subjected to electromagnetic interference when working in a bad environment, transmission of electric signals is guaranteed, and the service life of the planar transformer is prolonged.
Description
Technical Field
The utility model relates to a transformer technical field, in particular to jam-proof planar transformer.
Background
The planar transformer is an instrument with the characteristics of high frequency, low shape, small height, high working frequency and the like, adopts a small-sized E-type, RM-type or annular ferrite core, is usually made of high-frequency power ferrite materials, and has low core loss at high frequency; the winding is formed by winding a plurality of layers of printed circuit boards, and the winding or copper sheets are overlapped on the planar high-frequency iron core to form a magnetic loop of the transformer.
The circuit board of the planar transformer with the structure in the prior art extends out of the outer side when in use, and the periphery of the circuit board is not provided with a good protection device, so that the planar transformer is very easily influenced by the adverse environment around in the use process, the service life of the planar transformer is shortened, the transmission of electric signals is influenced, and the electromagnetic interference is easily generated.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an invention aim at provides an jam-proof planar transformer, adopts the utility model provides a technical scheme has solved the external circuit board of current planar transformer and has easily received the influence of harmful environment on every side and reduce its life, influences the transmission of electric signal, produces electromagnetic interference's problem easily.
In order to solve the technical problem, the utility model provides an anti-interference planar transformer, which comprises a magnetic core base (10) and a magnetic core top seat (20) which are oppositely arranged, and a plurality of layers of PCB boards (30) which are arranged between the magnetic core base (10) and the magnetic core top seat (20); a cylindrical magnetic core shaft (11) is formed in the center of the magnetic core base (10), and flat coil windings (31) are wound among the layers of the PCB (30); the PCB (30) penetrates through the magnetic core shaft (11) and two sides of the PCB extend out of the outer side of the magnetic core base (10); and the two sides of the magnetic core base (10) are provided with covering structures (40) covering the two sides of the PCB (30) extending out.
Preferably, magnetic core base (10) are the E font, magnetic core base (10) are the I font, magnetic core base (10) lid fits magnetic core base (10) top surface is in order to fix PCB board (30).
Preferably, the covering structure (40) comprises two side plates (41) which are respectively fixed on two sides of the magnetic core base (10) and one ends of which are in contact, and a top plate (42) which covers the tops of the side plates (41); the side plates (41) and the top plate (42) enclose a cavity for accommodating the extending side of the PCB (30).
Preferably, the side plates (41) are L-shaped, and the end surfaces of the two side plates (41) which are contacted with each other are provided with mutually matched steps (412).
Preferably, an installation groove (12) is formed in the outer side wall of the magnetic core base (10), a connection block (411) embedded in the installation groove (12) is formed on the side surface of the side plate (41), and the connection block is fixed in the installation groove (12) through a connection piece (413).
Preferably, a threaded hole (414) is formed in the top surface of the side plate (41), and a through hole (421) matched with the threaded hole (414) is formed in the top plate (42).
Preferably, a heat conducting member (21) is disposed between the magnetic core base (10) and the magnetic core top seat (20).
Preferably, the magnetic core base (10) and the magnetic core top base (20) are fixed by an insulating adhesive tape (50).
From the above, use the utility model provides a can obtain following beneficial effect: the utility model discloses the scheme is through relative magnetic core base and the magnetic core footstock that sets up, and a plurality of layers set up the PCB board between magnetic core base and magnetic core footstock, the center is formed with and is columniform magnetic core axle on the magnetic core base, the system has a plurality of flat coil windings between a plurality of layers of PCB board, and then constitute the magnetic circuit of transformer, the PCB board is worn to arrange in the magnetic core epaxial and both sides in and is stretched out the outside of magnetic core base, install the cover closed structure that fits the both sides that the PCB board stretched out in the both sides of magnetic core base, form the holding cavity that the holding PCB board stretched out the side through the cover closed structure, realize protecting the part that the PCB board stretched out the outside, avoid planar transformer to work under adverse circumstances to receive electromagnetic interference, guarantee the transmission of signal of telecommunication, improve planar transformer's life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present invention or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive faculty.
Fig. 1 is a top view of an interference-proof planar transformer according to an embodiment of the present invention;
fig. 2 is a top view of a side plate structure of an embodiment of the present invention;
fig. 3 is an exploded view of an interference-proof planar transformer according to an embodiment of the present invention;
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The PCB board stretches out the outside when the planar transformer of this kind of structure among the prior art uses, because the periphery of PCB does not have good protection device for planar transformer is very easily received the influence of harmful environment around and reduces its life in the use, influences the transmission of signal of telecommunication, produces electromagnetic interference's problem easily.
In order to solve the above technical problems, the present embodiment provides an anti-interference planar transformer, as shown in fig. 1 and fig. 3, comprising a magnetic core base 10 and a magnetic core top base 20, which are oppositely disposed, and a plurality of layers of PCB boards 30 disposed between the magnetic core base 10 and the magnetic core top base 20, wherein a cylindrical magnetic core shaft 11 is formed at the center of the magnetic core base 10, a plurality of flat coil windings 31 are wound between the plurality of layers of PCB boards 30, the flat coil windings 31 comprise a primary winding and a secondary winding, the magnetic core shaft 11 surrounding the magnetic core between the windings is wound between the PCB boards 30 in a crossing manner, each winding is electrically connected to the PCB board 30 through an electric wire, thereby forming a magnetic circuit of the transformer, the PCB board 30 is disposed on the magnetic core shaft 11 in a penetrating manner, and both sides of the PCB board extend out of the magnetic core base 10, both sides of the magnetic core base 10 are provided with covering structures 40 covering both sides of the PCB board 30, a receiving cavity for receiving the extending-out side of the PCB board 30 is formed by the covering structures 40, the protection of the part of the PCB 30 extending out of the outer side is realized, the planar transformer is prevented from being subjected to electromagnetic interference when working in a bad environment, the transmission of electric signals is ensured, and the service life of the planar transformer is prolonged.
Further, magnetic core base 10 is the E font, magnetic core base 10 is the I font, magnetic core base 10 approximately fits magnetic core base 10 top surface is with fixed PCB board 30, the both sides face of magnetic core base 10 is stretched out at the both ends of PCB board 30, cover closes structure 40 includes two curb plates 41 that are fixed in magnetic core base 10 both sides respectively, and the lid fits the roof 42 at curb plate 41 top, the one end of both sides board 41 contacts, curb plate 41 and roof 42 enclose into the cavity that is used for holding PCB board 30 to stretch out the side, enclose the periphery of arranging PCB board 30 in the side of stretching out through curb plate 41, the top at curb plate 41 is closed to rethread roof 42 lid, and then seal PCB board 30 and stretch out the side, reach the effect of protection PCB board, realize PCB board jam-proof.
As shown in fig. 2, the side plates 41 are L-shaped, the end surfaces of the two side plates 41 contacting each other are formed with mutually matched steps 412, and the end surfaces of the two side plates 41 forming the steps 412 realize the sealing of the inner side cavity of the side plate 41, thereby preventing the planar transformer from receiving electromagnetic interference when working in a bad environment.
Further, in order to realize that the two side plates 41 are respectively fixed on the side surfaces of the magnetic core base 10, the outer side wall of the magnetic core base 10 is provided with the mounting groove 12, the side surface of the side plate 41 is provided with a connecting block 411 which is embedded into the mounting groove 12, the connecting block 411 is fixed in the mounting groove 12 through a connecting piece 413, wherein the connecting piece 413 can be a fixing bolt, and the connecting block 411 is embedded into the mounting groove 12 and then is fixed through the fixing bolt. The connecting block 411 is fixed in the mounting groove 12, so that the side plate 41 is mounted on the magnetic core base 10.
In order to fix the top plate 42 on the side plate 41 to form the receiving cavity, a threaded hole 414 is formed in the top surface of the side plate 41, a through hole 421 matching with the threaded hole 414 is formed in the top plate 42, and the top plate 42 is fixed on the side plate 41 by passing a fixing bolt through the through hole 421 and connecting with the threaded hole 414.
A heat conducting member 21 is provided between the core base 10 and the core top 20. PCB board 30 and a plurality of flat coil winding 31 are installed behind magnetic core axle 11, cover heat-conducting piece 21 on magnetic core axle 11 top, close magnetic core footstock 20 lid again on magnetic core base 10 and push down heat-conducting piece 21, and it is fixed through insulating tape 50 after magnetic core footstock 20 lid closes on magnetic core base 10, realizes that heat-conducting piece 21 derives and gives off the heat of PCB board 30 and flat coil winding 31, improves the radiating effect of transformer.
To sum up, the utility model discloses the scheme is through relative magnetic core base and the magnetic core footstock that sets up and a plurality of layers set up the PCB board between magnetic core base and magnetic core footstock, the center is formed with and is columniform magnetic core axle on the magnetic core base, it has a plurality of flat coil windings to wind between a plurality of layers of PCB board, and then constitute the magnetic circuit of transformer, the PCB board wears to arrange in the magnetic core epaxial and both sides in and stretch out the outside of magnetic core base, install the cover closed structure that covers in the both sides that the PCB board stretches out in the both sides of magnetic core base, form the holding cavity that the holding PCB board stretched out the side through the cover closed structure, realize that the protection PCB board stretches out the part in the outside, avoid planar transformer to work under adverse circumstances and receive electromagnetic interference, guarantee the transmission of the signal of telecommunication, improve planar transformer's life.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (8)
1. An anti-interference planar transformer, characterized in that: the PCB comprises a magnetic core base (10) and a magnetic core top seat (20) which are oppositely arranged, and a plurality of layers of PCBs (30) which are arranged between the magnetic core base (10) and the magnetic core top seat (20); a cylindrical magnetic core shaft (11) is formed in the center of the magnetic core base (10), and flat coil windings (31) are wound among the layers of the PCB (30); the PCB (30) penetrates through the magnetic core shaft (11) and two sides of the PCB extend out of the outer side of the magnetic core base (10); and the two sides of the magnetic core base (10) are provided with covering structures (40) covering the two sides of the PCB (30) extending out.
2. The interference-proof planar transformer of claim 1, wherein: magnetic core base (10) are the E font, magnetic core base (10) are the I font, magnetic core base (10) lid fits magnetic core base (10) top surface is in order to fix PCB board (30).
3. The interference-proof planar transformer of claim 2, wherein: the covering structure (40) comprises two side plates (41) which are respectively fixed on two sides of the magnetic core base (10) and one ends of which are in contact with each other, and a top plate (42) which covers the tops of the side plates (41); the side plates (41) and the top plate (42) enclose a cavity for accommodating the extending side of the PCB (30).
4. The interference-proof planar transformer of claim 3, wherein: the side plates (41) are L-shaped, and the end faces, contacted with each other, of the two side plates (41) are provided with mutually matched steps (412).
5. The interference-proof planar transformer of claim 4, wherein: mounting groove (12) have been seted up to the lateral wall of magnetic core base (10), the side of curb plate (41) is formed with the dress and inlays connecting block (411) in mounting groove (12), connecting block (411) are fixed in through connecting piece (413) in mounting groove (12).
6. The interference-proof planar transformer of claim 5, wherein: the top surface of the side plate (41) is provided with a threaded hole (414), and the top plate (42) is provided with a through hole (421) matched with the threaded hole (414).
7. The interference-proof planar transformer of claim 1, wherein: a heat conducting piece (21) is arranged between the magnetic core base (10) and the magnetic core top seat (20).
8. The interference-proof planar transformer of claim 7, wherein: the magnetic core base (10) and the magnetic core top seat (20) are fixed through an insulating adhesive tape (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120251045.1U CN214203365U (en) | 2021-01-29 | 2021-01-29 | Anti-interference planar transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120251045.1U CN214203365U (en) | 2021-01-29 | 2021-01-29 | Anti-interference planar transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214203365U true CN214203365U (en) | 2021-09-14 |
Family
ID=77638448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120251045.1U Active CN214203365U (en) | 2021-01-29 | 2021-01-29 | Anti-interference planar transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214203365U (en) |
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2021
- 2021-01-29 CN CN202120251045.1U patent/CN214203365U/en active Active
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