CN212380262U - Assembling structure of flat-plate transformer - Google Patents
Assembling structure of flat-plate transformer Download PDFInfo
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- CN212380262U CN212380262U CN202021137933.2U CN202021137933U CN212380262U CN 212380262 U CN212380262 U CN 212380262U CN 202021137933 U CN202021137933 U CN 202021137933U CN 212380262 U CN212380262 U CN 212380262U
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Abstract
The utility model discloses an assembly structure of a flat-plate transformer, which comprises a base, a first magnetic core, a second magnetic core, a plurality of PIN needles and a PCB board; the base is provided with a positioning foot, and a placing concave position is formed around the positioning foot; the first magnetic core and the second magnetic core are vertically stacked and arranged in the placing concave position; PIN needle is inlayed in the base both sides, and this PCB board clamp is located between first magnetic core and the second magnetic core, and connects the PIN needle. The positioning pins arranged on the base are utilized to assist the positioning and the installation of the first magnetic core and the second magnetic core when the first magnetic core and the second magnetic core are installed; compared with the traditional assembly mode of manual visual positioning, the assembly method has the advantages that the positioning is convenient, and the positioning accuracy can be improved; secondly, an encapsulation concave position is formed between the two positioning pins, after the first magnetic core and the second magnetic core are installed, the adhesive tape is wound through the encapsulation concave position, and the first magnetic core, the second magnetic core and the base are wound and fixed, so that the tape encapsulation is very convenient.
Description
Technical Field
The utility model belongs to the technical field of the transformer technique and specifically relates to indicate a package assembly of planar transformer.
Background
In current transformation technology, a transformer is one of the most critical components, mainly functioning as power transmission and electrical isolation. With the development of portable products, space becomes more compact, and requirements on power and efficiency of devices become higher, so that requirements on transformer design, especially on safety structure, are more demanding, while traditional wound-rotor transformers do not meet the requirements at all in this respect, and flat transformers are produced on this background.
In the existing flat-plate transformer, a PCB is generally clamped between two magnetic cores, and then corresponding PIN PINs are arranged on the PCB; because the positioning part is lacked between PCB board and the magnetic core, when installing PCB board and magnetic core, only can rely on the manual work to come the range estimation location, the location is troublesome, and the precision also has the restriction to some extent.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to the deficiency of the prior art, and the main objective of the present invention is to provide an assembling structure of a planar transformer, which is reasonable in structure and arrangement, and effectively solves the problems of troublesome positioning and poor positioning accuracy of the conventional planar transformer.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an assembly structure of a flat transformer comprises a base, a first magnetic core, a second magnetic core, a plurality of PIN PINs and a PCB; the base is provided with a positioning foot, and a placing concave position is formed around the positioning foot; the first magnetic core and the second magnetic core are vertically stacked and arranged in the placing concave position; PIN needle is inlayed in the base both sides, and this PCB board clamp is located between first magnetic core and the second magnetic core, and connects the PIN needle.
As a preferred embodiment: the positioning feet are arranged at four corners of the base, and the left and right positioning feet at the front and rear sides are arranged at intervals to form a rubber coating concave position.
As a preferred embodiment: the PIN needles are respectively arranged on the left side and the right side of the base and are correspondingly positioned between the two positioning feet on the left side and the right side.
As a preferred embodiment: the width W of the placement concave position is smaller than the length L.
As a preferred embodiment: the thickness of the second magnetic core is smaller than the height of the positioning foot.
As a preferred embodiment: the middle parts of the first magnetic core and the second magnetic core are oppositely and convexly provided with magnetic columns, and the PCB is provided with a through hole; the magnetic columns are oppositely inserted into the through holes.
As a preferred embodiment: the PIN needle comprises an inserting part and a welding part which are integrally connected, the inserting part and the welding part are arranged in an L shape, the inserting part extends upwards out of the base, the lower end of the inserting part extends out of the bottom of the base, and the welding part transversely extends outwards from the inserting part; the PCB board is provided with a jack hole, and the plug part is inserted into the jack hole.
As a preferred embodiment: the welding part does not exceed the outer side surface of the base.
As a preferred embodiment: the base is provided with a mark salient point which is arranged on the upper surface of any positioning foot.
As a preferred embodiment: the first magnetic core is provided with a top wall, a first front wall and a first rear wall, wherein the first front wall and the first rear wall are connected with the front end and the rear end of the top wall; the second magnetic core is provided with a bottom wall, a second front wall and a second rear wall which are connected with the front end and the rear end of the bottom wall;
the first front wall, the second front wall, the first rear wall and the second rear wall are limited by the inner wall surfaces of the positioning feet; the first front wall and the second front wall are spliced into a front wall, the first rear wall and the second rear wall are spliced into a rear wall, and the PCB is located in an area enclosed by the front wall, the rear wall, the bottom wall and the top wall.
Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:
the positioning pins arranged on the base are utilized to assist the positioning and the installation of the first magnetic core and the second magnetic core when the first magnetic core and the second magnetic core are installed; compared with the traditional assembly mode of manual visual positioning, the assembly method has the advantages that the positioning is convenient, and the positioning accuracy can be improved;
secondly, an encapsulation concave position is formed between the two positioning pins, after the first magnetic core and the second magnetic core are installed, the adhesive tape is wound through the encapsulation concave position, and the first magnetic core, the second magnetic core and the base are wound and fixed, so that the encapsulation is very convenient;
in addition, the plurality of PIN needles are formed on the base, so that the arrangement of the PIN needles is regular; when the PCB is welded, a jig is not needed to assist welding.
To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic perspective view of a planar transformer according to a preferred embodiment of the present invention;
fig. 2 is an exploded view of a planar transformer according to a preferred embodiment of the present invention;
fig. 3 is another exploded perspective view of the planar transformer according to the preferred embodiment of the present invention;
fig. 4 is a left side view of the planar transformer according to the preferred embodiment of the present invention;
FIG. 5 is a schematic view of the assembly of the base and the second magnetic core according to the preferred embodiment of the present invention;
fig. 6 is an assembly diagram of the base, the second magnetic core and the PCB according to the preferred embodiment of the present invention.
The attached drawings indicate the following:
10. base 11, location foot
12. Placing concave position 13 and rubber coating concave position
14. Mark bump 20, first magnetic core
201. Top wall 202, first front wall
203. First back wall 21, magnetic column
30. Second magnetic core 301, bottom wall
302. A second front wall 303 and a second rear wall
40. PIN needle 41 and plug part
42. Welding part 50 and PCB
51. And a through hole.
Detailed Description
Referring to fig. 1 to 6, a specific structure of a planar transformer according to a preferred embodiment of the present invention is shown, which is an assembly structure of a planar transformer, including a base 10, a first magnetic core 20, a second magnetic core 30, a plurality of PIN PINs 40 and a PCB 50.
The base 10 is provided with positioning legs 11, in the embodiment of the present application, the positioning legs 11 are disposed at four corners of the base 10 and form a placing recess 12; the width W of the concave position 12 is smaller than the length L, so that the problem of assembly error in the process of assembling the magnetic core can be prevented. The left and right positioning feet 11 on the front and rear sides are arranged at intervals to form an encapsulation concave position 13, and the encapsulation concave position 13 can be used for winding the adhesive tape through the encapsulation concave position 13 and winding and fixing the first magnetic core 20 and the second magnetic core 30 with the base 10 after the first magnetic core 20 and the second magnetic core 30 are installed, so that the encapsulation is very convenient. The base 10 is provided with a mark salient point 14, the mark salient point 14 is arranged on the upper surface of any positioning pin 11, and the set mark salient point 14 can be used for providing position identification for the assembly of the PCB 50 so as to prevent the PCB 50 from being assembled incorrectly.
The first magnetic core 20 and the second magnetic core 30 are stacked up and down and are arranged in the placing concave position 12; preferably, the thickness of the second magnetic core 30 is smaller than the height of the positioning leg 11; in this way, when the first magnetic core 20 and the second magnetic core 30 are assembled in the placing recess 12, the positioning legs 11 can position both the first magnetic core 20 and the second magnetic core 30. The middle portions of the first and second magnetic cores 20 and 30 are oppositely protruded with magnetic columns 21, the PCB 50 is provided with through holes 51, and the magnetic columns 21 are oppositely inserted into the through holes 51.
As described above, the first magnetic core 20 has a top wall 201, and a first front wall 202 and a first rear wall 203 connected to the front and rear ends of the top wall 201; the second magnetic core 30 has a bottom wall 301, and a second front wall 302 and a second rear wall 303 connected to the front and rear ends of the bottom wall 301; the first front wall 202, the second front wall 302, the first rear wall 203 and the second rear wall 303 are limited by the inner wall surfaces of the positioning feet 11; the first front wall 202 and the second front wall 302 are spliced to form a front wall, the first rear wall 203 and the second rear wall 303 are spliced to form a rear wall, and the PCB board 50 is located in an area enclosed by the front wall, the rear wall, the bottom wall and the top wall.
The PIN PINs 40 are embedded in two sides of the base 10, and the PCB 50 is sandwiched between the first magnetic core 20 and the second magnetic core 30 and connected to the PIN PINs 40. Specifically, the PIN PINs 40 are respectively disposed on the left and right sides of the base 10 and are respectively located between the two positioning legs 11 on the left and right sides. The PIN 40 includes an insertion part 41 and a welding part 42 which are integrally connected, the insertion part 41 and the welding part 42 are arranged in an "L" shape, the insertion part 41 extends upwards out of the base 10, the lower end of the insertion part 41 extends out of the bottom of the base 10, and the welding part 42 extends outwards from the insertion part 41 in the transverse direction; the PCB 50 is provided with a socket hole 52, and the socket part 41 is inserted into the socket hole 50. Preferably, the welding portion 42 does not extend beyond the outer side surface of the base 10.
General description the assembly process of the present invention is as follows: firstly, the second magnetic core 30 is arranged in the placing concave position 12; then aligning the through hole 51 of the PCB 50 with the plug-in part 42 of the PIN PIN 40, placing the PCB 50 on a base and connecting the PIN PIN 40; then, the first magnetic core 20 is arranged in the placing concave position 12, is overlapped with the second magnetic core 30 up and down, and clamps the PCB 50; then, the adhesive tape is wound around the first magnetic core 20, the second magnetic core 30 and the base 10 and limited by the encapsulation concave 13; after the encapsulation is finished, glue is dispensed at the intersection of the first magnetic core 20, the second magnetic core 30 and the base 10, and glue solution contacts the first magnetic core 20, the second magnetic core 30 and the base 10.
The utility model discloses a design focus lies in: the positioning pins arranged on the base are utilized to assist the positioning and the installation of the first magnetic core and the second magnetic core when the first magnetic core and the second magnetic core are installed; compared with the traditional assembly mode of manual visual positioning, the assembly method has the advantages that the positioning is convenient, and the positioning accuracy can be improved;
secondly, an encapsulation concave position is formed between the two positioning pins, after the first magnetic core and the second magnetic core are installed, the adhesive tape is wound through the encapsulation concave position, and the first magnetic core, the second magnetic core and the base are wound and fixed, so that the encapsulation is very convenient;
in addition, the plurality of PIN needles are formed on the base, so that the arrangement of the PIN needles is regular; when the PCB is welded, a jig is not needed to assist welding.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides an assembly structure of planar transformer which characterized in that: the PCB comprises a base (10), a first magnetic core (20), a second magnetic core (30), a plurality of PIN PINs (40) and a PCB (50); the base (10) is provided with a positioning foot (11), and a placing concave position (12) is surrounded by the positioning foot (11); the first magnetic core (20) and the second magnetic core (30) are overlapped up and down and are arranged in the placing concave position (12); PIN needle (40) inlay in base (10) both sides, and this PCB board (50) clamp is located between first magnetic core (20) and second magnetic core (30), and connects PIN needle (40).
2. The assembly structure of a planar transformer according to claim 1, wherein: the positioning feet (11) are arranged at four corners of the base (10), and the left and right positioning feet (11) at the front and rear sides are arranged at intervals to form a rubber coating concave position (13).
3. The assembly structure of the planar transformer according to claim 2, wherein: the PIN needles (40) are respectively arranged on the left side and the right side of the base (10) and are correspondingly positioned between the two positioning feet (11) on the left side and the right side.
4. The assembly structure of a planar transformer according to claim 1, wherein: the width W of the placing concave position (12) is smaller than the length L.
5. The assembly structure of a planar transformer according to claim 1, wherein: the thickness of the second magnetic core (30) is smaller than the height of the positioning foot (11).
6. The assembly structure of a planar transformer according to claim 1, wherein: the middle parts of the first magnetic core (20) and the second magnetic core (30) are oppositely and convexly provided with magnetic columns (21), and the PCB (50) is provided with a through hole (51); the magnetic columns (21) are oppositely inserted into the through holes (51).
7. The assembly structure of a planar transformer according to claim 1, wherein: the PIN needle (40) comprises an inserting part (41) and a welding part (42) which are integrally connected, the inserting part (41) and the welding part (42) are arranged in an L shape, the inserting part (41) extends upwards out of the base (10), the lower end of the inserting part (41) extends out of the bottom of the base (10), and the welding part (42) extends outwards from the inserting part (41) in the transverse direction; the PCB (50) is provided with a plug hole (52), and the plug part (41) is inserted into the plug hole (52).
8. The assembly structure of a planar transformer according to claim 7, wherein: the welding part (42) does not exceed the outer side surface of the base (10).
9. The assembly structure of a planar transformer according to claim 7, wherein: the base (10) is provided with a mark salient point (14), and the mark salient point (14) is arranged on the upper surface of any positioning pin (11).
10. The assembly structure of a planar transformer according to claim 6, wherein: the first magnetic core (20) is provided with a top wall (201), a first front wall (202) and a first rear wall (203), wherein the first front wall and the first rear wall are connected with the front end and the rear end of the top wall (201); the second magnetic core (30) is provided with a bottom wall (301), a second front wall (302) and a second rear wall (303), wherein the second front wall and the second rear wall are connected with the front end and the rear end of the bottom wall (301);
the first front wall (202), the second front wall (302), the first rear wall (203) and the second rear wall (303) are limited by the inner wall surfaces of the positioning feet (11); the first front wall (202) and the second front wall (302) are spliced to form a front wall, the first rear wall (203) and the second rear wall (303) are spliced to form a rear wall, and the PCB (50) is located in an area surrounded by the front wall, the rear wall, the bottom wall and the top wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021137933.2U CN212380262U (en) | 2020-06-18 | 2020-06-18 | Assembling structure of flat-plate transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021137933.2U CN212380262U (en) | 2020-06-18 | 2020-06-18 | Assembling structure of flat-plate transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212380262U true CN212380262U (en) | 2021-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021137933.2U Active CN212380262U (en) | 2020-06-18 | 2020-06-18 | Assembling structure of flat-plate transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212380262U (en) |
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2020
- 2020-06-18 CN CN202021137933.2U patent/CN212380262U/en active Active
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