CN215118590U - Half-wound main transformer - Google Patents
Half-wound main transformer Download PDFInfo
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- CN215118590U CN215118590U CN202120536283.7U CN202120536283U CN215118590U CN 215118590 U CN215118590 U CN 215118590U CN 202120536283 U CN202120536283 U CN 202120536283U CN 215118590 U CN215118590 U CN 215118590U
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Abstract
The utility model relates to the technical field of transformers, in particular to a half-wound main transformer, which comprises a mounting seat and a magnetic core arranged on the mounting seat, wherein one side of the mounting seat is a primary side and is provided with a plurality of primary side pins, the other side of the mounting seat is a secondary side and is provided with a plurality of secondary side pins, and the half-wound main transformer also comprises a plurality of primary side coils, a plurality of first secondary side coils and a plurality of connecting wires; the utility model discloses a change the winding method of first secondary side coil, the use of deuterogamy connecting wire makes the homonymy end and the synonym end of first secondary side coil not lie in same one side of mount pad to obtain non-integer's the number of turns, can satisfy special pressure and change the demand, simultaneously the utility model discloses a half winding main transformer's simple structure can not increase the volume of transformer when satisfying special pressure and change the demand.
Description
Technical Field
The utility model belongs to the technical field of the transformer technique and specifically relates to indicate a half around main transformer.
Background
In a commercial transformer, the turn ratio of the primary side and the secondary side is usually an integer ratio, such as N: m, N and M are all natural numbers, but, sometimes the integer ratio can not reach the transformation of the voltage of target certainly, therefore need set up a plurality of transformers or a plurality of coils, can reach the demand through complicated winding process again, and this kind of design for the transformer is complicated, increases the volume and the weight of transformer, makes the circuit structure of using even more complicated with being connected of transformer, therefore the structure of conventional transformer can not satisfy special vary voltage demand.
Disclosure of Invention
The utility model discloses problem to prior art provides a half around main transformer, through the winding that changes first secondary side coil, the use of deuterogamy connecting wire realizes the non-integer turn ratio of transformer to obtain special vary voltage demand.
In order to solve the technical problem, the utility model discloses a following technical scheme: a half-wound main transformer comprises a mounting seat and a magnetic core arranged on the mounting seat, wherein one side of the mounting seat is a primary side and is provided with a plurality of primary side pins, the other side of the mounting seat is a secondary side and is provided with a plurality of secondary side pins, and the half-wound main transformer further comprises a plurality of primary side coils, a plurality of first secondary side coils and a plurality of connecting wires; the primary side coil is wound on the periphery of the magnetic core, and two ends of the primary side coil are respectively and electrically connected with different primary side pins; the homonymous ends of the first secondary side coils are connected with the secondary side pins, the homonymous ends are used as starting points, the first secondary side coils wind the magnetic core for a plurality of turns and return to the starting points, then the first secondary side coils continue to rotate around the magnetic core until the synonym ends of the first secondary side coils are located on the primary side of the mounting base, and the synonym ends of the first secondary side coils are electrically connected with the secondary side pins through the connecting wires.
Preferably, the half-wound main transformer further comprises a plurality of second secondary side coils, the dotted ends of the plurality of second secondary side coils are arranged on the primary side of the mounting seat, and the dotted ends of the second secondary side coils are electrically connected with the secondary side pins through the connecting wires; the synonym end of the second secondary side coil is electrically connected with the secondary side pin, and the second secondary side coil is wound on the periphery of the magnetic core.
Preferably, the number of turns of the first secondary side coil is N +0.5, where N is a natural number.
Preferably, the number of turns of the second secondary side coil is N +0.5 turns, where N is a natural number.
Preferably, the connecting wire comprises a conductor and an insulating sleeve sleeved on the periphery of the conductor, and two ends of the conductor are exposed outside the insulating sleeve.
Preferably, the half-wound main transformer further comprises a plurality of third secondary side coils, the third secondary side coils surround the periphery of the magnetic core, and two ends of the third secondary side coils are electrically connected with different secondary side pins respectively.
Preferably, one end of the connecting wire is electrically connected with the first secondary side coil or the second secondary side coil, penetrates out of the top of the magnetic core, and is electrically connected with the secondary side pin after bypassing the top of the mounting seat.
Preferably, the primary side coil is wound around the outside of the first secondary side coil.
Preferably, an insulating layer is provided on an outer periphery of the primary coil.
The utility model has the advantages that:
the utility model provides a pair of half around main transformer, through the winding that changes first secondary side coil, the use of deuterogamy connecting wire makes the homonymy end and the synonym end of first secondary side coil not be located same one side of mount pad to obtain non-integer's number of turns, can satisfy special pressure change demand, simultaneously the utility model discloses a half around main transformer's simple structure can not increase the volume of transformer when satisfying special pressure change demand.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a schematic diagram of the present invention.
Fig. 4 is a coil winding process diagram of the present invention.
Fig. 5 is a schematic diagram of the winding method when the number of turns of the first secondary side coil is 2.5.
Fig. 6 is a schematic diagram of the winding method when the number of turns of the second secondary side coil is 2.5.
The reference numerals in fig. 1 to 6 include:
11-mounting seat, 22-magnetic core, 33-primary side pin, 44-secondary side pin, 55-primary side coil, 66-first secondary side coil, 77-connecting wire, 88-second secondary side coil and 99-third secondary side coil.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to the accompanying drawings.
The first embodiment is as follows:
a half-wound main transformer according to the present embodiment, as shown in fig. 1, fig. 2, fig. 3 and fig. 5, includes a mounting base 11 and a magnetic core 22 mounted on the mounting base 11, one side of the mounting base 11 is a primary side and is provided with a plurality of primary side pins 33, the other side of the mounting base 11 is a secondary side and is provided with a plurality of secondary side pins 44, the half-wound main transformer further includes a plurality of primary side coils 55, a plurality of first secondary side coils 66 and a plurality of connecting wires 77; the primary coil 55 is wound around the outer periphery of the core 22, and both ends of the primary coil 55 are electrically connected to different primary leads 33, respectively; the dotted ends of the first secondary side coils 66 are connected to the secondary side pins 44, and with the dotted ends as starting points, after the first secondary side coils 66 return to the starting points by winding the magnetic core 22 for a plurality of turns, the first secondary side coils 66 continue to rotate around the magnetic core 22 until the dotted ends of the first secondary side coils 66 are located on the primary side of the mounting base 11, and the dotted ends of the first secondary side coils 66 are electrically connected to the secondary side pins 44 through the connecting wires 77.
Specifically, the half-wound main transformer of the present embodiment is a 14pin package, in which pins 1 to 7 are primary side pins 33 (the unnecessary primary side pins 33 can be removed after the product is assembled), and pins 8 to 14 are secondary side pins 44, and the present embodiment is described by taking the number of turns of the first secondary coil as an example of 2.5. As shown in fig. 5, the winding method of the first secondary winding 66 is: firstly, the homonymous terminal is welded with the pin 8 or 9 of the secondary side pin 44, then the coil rotates 2 times around the magnetic core 22 (anticlockwise winding 2 times in fig. 5), the coil returns to the pin 8 or 9, then the coil continues to wind the magnetic core 22 for half a turn, finally the heteronymous terminal of the first secondary side coil 66 stays at the primary side, then one end of the connecting wire 77 is electrically connected with the heteronymous terminal of the first secondary side coil 66 by using one connecting wire 77, then the connecting wire 77 penetrates out of the top of the magnetic core 22, the magnetic core 22 is installed on the installation seat 11, and then the other end of the connecting wire 77 is welded to the pins 12, 13 and 14 of the secondary side pin 44, so that the 2.5-turn winding method of the first secondary side coil 66 is realized. This embodiment is through changing the winding method of first secondary side coil 66, and the use of cooperation connecting wire 77 again makes the homonymy end and the synonym end of first secondary side coil 66 not lie in the same one side of mount pad 11 to obtain non-integer's number of turns, can satisfy special pressure and become the demand, the semi-winding main transformer's of this embodiment simple structure simultaneously can not increase the volume of transformer when satisfying special pressure and become the demand.
Of course, the number of turns of the coil in this embodiment may be set according to actual requirements, for example, 3.5 turns, 4.5 turns, and may even be N +0.6 or N +0.7, and the present embodiment is not limited.
The connecting wire 77 of this embodiment includes a conductor and an insulating sleeve sleeved on the periphery of the conductor, and two ends of the conductor are exposed outside the insulating sleeve. The connecting wire 77 of this embodiment is preferably a teflon sleeve.
As shown in fig. 4, when a plurality of coils are provided in the present embodiment, after being wound on the magnetic core 22, the secondary coil is located inside, the primary coil is located outside, and different layers of high voltage insulating yellow tapes are arranged between the coils for isolation, and after all the coils are wound, an insulating layer (not shown in the drawing) is wound on the outermost coil, and is preferably wrapped by a black insulating tape, so as to ensure safe use of the transformer of the present embodiment.
Example two:
unlike the first embodiment, in the winding method of the second secondary side coil 88 and the first primary side coil 55, the dotted terminal of the second secondary side coil 88 of the present embodiment is first disposed on the primary side of the core 22, as shown in fig. 6, and then is rotated clockwise about the core 22 by 2.5 turns, so that the dotted terminal of the second secondary side coil 88 is located at the 12, 13, and 14 pins of the secondary side pin 44, and the dotted terminal of the second secondary side coil 88 is soldered to the 12, 13, and 14 pins, while the dotted terminal is connected to the connecting wire 77, and after the core 22 is mounted on the mounting seat 11, the connecting wire 77 is soldered to the 8 or 9 pins, thereby achieving a non-integer turns ratio.
Example three:
in this embodiment, in combination with the first and second embodiments, as shown in fig. 3 and 4, N3 represents the first secondary winding 66, N4 represents the second secondary winding 88, N2 represents the third secondary winding 99, and the number of turns of N2 is an integer. The first secondary side coil 66 and the second secondary side coil 88 of the present embodiment are wound in the same manner as in the first and second embodiments, and the turns ratio can be adjusted according to actual needs, so that more different voltage variations can be realized, and therefore, the present embodiment has very high practicability.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.
Claims (9)
1. The utility model provides a half around main transformer, includes the mount pad and installs the magnetic core on the mount pad, one side of mount pad is for once inclining and be provided with a plurality of pins that incline, and the opposite side of mount pad is the secondary side and is provided with a plurality of secondary side pins, its characterized in that: the half-wound main transformer also comprises a plurality of primary side coils, a plurality of first secondary side coils and a plurality of connecting wires;
the primary side coil is wound on the periphery of the magnetic core, and two ends of the primary side coil are respectively and electrically connected with different primary side pins;
the homonymous ends of the first secondary side coils are connected with the secondary side pins, the homonymous ends are used as starting points, the first secondary side coils wind the magnetic core for a plurality of turns and return to the starting points, then the first secondary side coils continue to rotate around the magnetic core until the synonym ends of the first secondary side coils are located on the primary side of the mounting base, and the synonym ends of the first secondary side coils are electrically connected with the secondary side pins through the connecting wires.
2. A semi-wound main transformer according to claim 1, wherein: the half-wound main transformer further comprises a plurality of second secondary side coils, the homonymous ends of the second secondary side coils are arranged on the primary side of the mounting seat, and the homonymous ends of the second secondary side coils are electrically connected with the secondary side pins through the connecting wires; the synonym end of the second secondary side coil is electrically connected with the secondary side pin, and the second secondary side coil is wound on the periphery of the magnetic core.
3. A semi-wound main transformer according to claim 1, wherein: the number of turns of the first secondary side coil is N +0.5 turns, wherein N is a natural number.
4. A semi-wound main transformer according to claim 2, wherein: the number of turns of the second secondary side coil is N +0.5 turns, wherein N is a natural number.
5. A semi-wound main transformer according to claim 1, wherein: the connecting wire comprises a conductor and an insulating sleeve sleeved on the periphery of the conductor, and two ends of the conductor are exposed outside the insulating sleeve.
6. A semi-wound main transformer according to claim 1 or 2, wherein: the half-winding main transformer further comprises a plurality of third secondary side coils, the third secondary side coils surround the periphery of the magnetic core, and two ends of each third secondary side coil are electrically connected with different secondary side pins respectively.
7. A semi-wound main transformer according to claim 1 or 2, wherein: and one end of the connecting wire is electrically connected with the first secondary side coil or the second secondary side coil, penetrates out of the top of the magnetic core, and is electrically connected with the secondary side pin after bypassing the top of the mounting seat.
8. A semi-wound main transformer according to claim 1, wherein: the primary side coil surrounds the outside of the first secondary side coil.
9. A semi-wound main transformer according to claim 8, wherein: the periphery of the primary side coil is provided with an insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120536283.7U CN215118590U (en) | 2021-03-15 | 2021-03-15 | Half-wound main transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120536283.7U CN215118590U (en) | 2021-03-15 | 2021-03-15 | Half-wound main transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215118590U true CN215118590U (en) | 2021-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120536283.7U Active CN215118590U (en) | 2021-03-15 | 2021-03-15 | Half-wound main transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215118590U (en) |
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2021
- 2021-03-15 CN CN202120536283.7U patent/CN215118590U/en active Active
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| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 523000 No. 5, Zhengwei fifth road, Dongkeng Town, Dongguan City, Guangdong Province Patentee after: GUANGDONG SOHOO TECHNOLOGY Co.,Ltd. Address before: No.1 Junda Road, Dongkeng Town, Dongguan City, Guangdong Province 523000 Patentee before: GUANGDONG SOHOO TECHNOLOGY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |