CN216450469U - High-isolation electronic transformer - Google Patents
High-isolation electronic transformer Download PDFInfo
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- CN216450469U CN216450469U CN202121962636.6U CN202121962636U CN216450469U CN 216450469 U CN216450469 U CN 216450469U CN 202121962636 U CN202121962636 U CN 202121962636U CN 216450469 U CN216450469 U CN 216450469U
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Abstract
The utility model provides a high-isolation electronic transformer, which comprises an insulating shell, wherein the insulating shell is provided with an open magnetic core cavity for mounting a magnetic core, the opening of the open magnetic core cavity is positioned on the front side wall of the insulating shell, the opening of the open magnetic core cavity is provided with more than two first-stage pins, the rear outer side wall of the insulating shell, which is opposite to the opening, is provided with more than two second-stage pins, and the first-stage pins and the second-stage pins are both arranged close to the bottom of the insulating shell; the top and the back outer side wall of the insulating shell are provided with more than two lead grooves, and the lead grooves extend from the opening to the direction of the second-stage pins. The high-isolation electronic transformer can increase the creepage distance between the primary pin and the secondary pin, improve the safety performance, and simultaneously realize automatic winding of the terminal pin, automatic wire separation and automatic laser peeling in the subsequent process through the special design of the pins, thereby greatly improving the production efficiency and the reliability of the product.
Description
Technical Field
The utility model relates to the technical field of transformers, in particular to a high-isolation electronic transformer.
Background
The electronic transformer is an electronic device which converts alternating voltage of commercial power into direct current and then forms a high-frequency alternating voltage output through a semiconductor switching device, an electronic element and a high-frequency transformer winding, and is also an alternating-current, direct-current and alternating-current inverter circuit taught in the theory of electronics.
In the existing transformer, because the insulating material is easily polarized between the primary pin and the secondary pin, the insulating material presents a charged area with a charged phenomenon, so that the safety of the transformer is deteriorated. In the existing transformer, lead grooves are arranged on two side surfaces of an insulating shell of the transformer, and lead wires cross the side surfaces from the side surfaces to be connected with pins, so that the creepage distance and the electric clearance between a primary pin and a secondary pin are reduced, and the safety is deteriorated.
In addition, the prior transformer adopts a gull pin leading-out terminal, so that the operations of automatic winding, automatic branching, automatic laser peeling and the like cannot be realized, the manual operation is time-consuming and labor-consuming, and more importantly, the reliability of the product cannot be ensured.
Therefore, it is necessary to design a more optimized transformer structure to increase the insulation between the primary pin and the secondary pin, and at the same time, to redesign and optimize the lead-out terminal to realize automated production.
Disclosure of Invention
The utility model mainly aims to provide a high-isolation electronic transformer which increases the creepage distance between a primary pin and a secondary pin and improves the safety performance.
In order to achieve the main purpose, the high-isolation electronic transformer provided by the utility model comprises an insulating shell, wherein the insulating shell is provided with an open magnetic core cavity for mounting a magnetic core, an opening of the open magnetic core cavity is positioned on the front side wall of the insulating shell, more than two first-stage pins are arranged at the opening of the open magnetic core cavity, more than two second-stage pins are arranged on the rear outer side wall of the insulating shell opposite to the opening, and the first-stage pins and the second-stage pins are both arranged close to the bottom of the insulating shell; the top and the back outer side wall of the insulating shell are provided with more than two lead slots, and the lead slots extend from the opening to the direction of the second-stage pins.
According to the scheme, the lead slots are arranged on the top and the rear outer side wall of the insulating shell and used for mounting the outgoing lines, and compared with the existing structure which spans from the side surfaces of the outgoing lines, the high-isolation electronic transformer increases the creepage distance and the electric clearance between the primary pins and the secondary pins of the transformer, so that the insulating property of the primary pins and the secondary pins is improved, and the safety is improved.
In a further scheme, any two lead slots are arranged in parallel.
Therefore, the lead grooves are arranged in parallel, so that the lead arrangement is more reasonable.
In the further scheme, insulating housing's bottom is provided with a plurality of recesses, and a plurality of recesses extend to insulating housing's right lateral wall by insulating housing's left lateral wall, and a plurality of recesses are parallel arrangement.
Therefore, the creepage distance and the electric clearance of the primary pin and the secondary pin are further increased by arranging the grooves at the bottom, and the insulating property is further increased.
In a further scheme, the first-stage pin and the second-stage pin are both U-shaped pins.
Therefore, the first-stage pins and the second-stage pins are U-shaped pins, automatic winding of the terminal pins, automatic branching and automatic laser peeling in a subsequent process can be realized, automatic production is realized finally, and production efficiency and product quality are greatly improved.
In a further scheme, the first end of the first-stage pin is close to the opening of the open magnetic core cavity, and the second end of the first-stage pin extends out of the bottom of the insulating shell.
Therefore, the first ends of the first-stage pins are close to the opening of the open magnetic core cavity, so that the outgoing lines can be conveniently wound, and the second ends of the first-stage pins extend out of the bottom of the insulating shell, so that subsequent welding and installation can be facilitated.
In a further scheme, the length of the first end of the first-stage pin extending out of the front side wall is larger than the length of the second end of the first-stage pin extending out of the front side wall.
Therefore, the length of the first end of the first-stage pin extending out of the front side wall is larger than the length of the second end of the first-stage pin extending out of the front side wall, and the outgoing line can be conveniently installed at the first end of the first-stage pin.
In a further scheme, the first end of the second-stage pin is positioned at one side close to the lead slot, and the second end of the second-stage pin extends out of the bottom of the insulating shell.
Therefore, the first ends of the second-level pins are located on one side close to the lead slots, the lead wires can be conveniently wound, and the second ends of the second-level pins extend out of the bottom of the insulating shell, so that subsequent welding installation can be facilitated.
In a further scheme, the length of the outer side wall of the second-stage pin after the first end of the second-stage pin extends out is larger than the length of the outer side wall of the first-stage pin after the second end of the first-stage pin extends out.
Therefore, the length of the outer side wall of the second-stage pin after the first end of the second-stage pin extends out is larger than the length of the outer side wall of the first-stage pin after the second end of the first-stage pin extends out, and the outgoing line can be conveniently installed at the first end of the second-stage pin.
In a further aspect, the surface of the rear outer sidewall is disposed at an angle with respect to the roof.
Therefore, the surface of the rear outer side wall is obliquely arranged relative to the top, the length of the lead can be shortened, and materials are saved.
Drawings
Fig. 1 is a block diagram of an embodiment of the high isolation electronic transformer of the present invention.
Fig. 2 is a structural diagram of an insulating housing in an embodiment of the high-isolation electronic transformer according to the utility model from one perspective.
Fig. 3 is a structural diagram of another perspective view of an insulating housing in an embodiment of a high-isolation electronic transformer according to the utility model.
Fig. 4 is a structural diagram of another perspective view of an insulating housing in an embodiment of the high-isolation electronic transformer of the utility model.
Fig. 5 is a structural sectional view of an insulating housing in an embodiment of the high-isolation electronic transformer of the utility model.
The utility model is further explained with reference to the drawings and the embodiments.
Detailed Description
As shown in fig. 1, in the present embodiment, the high-isolation electronic transformer includes an insulating housing 1 and a magnetic core 2, and the magnetic core 2 is mounted on the insulating housing 1. The insulating housing 1 is made of plastic, and the magnetic core 2 is wound with a primary coil and a secondary coil, which are well known to those skilled in the art and will not be described herein.
Referring to fig. 2 and 3, the insulating housing 1 is provided with an open magnetic core cavity 11 for mounting the magnetic core 2, an opening of the open magnetic core cavity 11 is located on a front side wall 12 of the insulating housing 1, the opening of the open magnetic core cavity 11 is provided with more than two first-stage pins 13, the rear outer side wall 16 of the insulating housing 1 facing away from the opening is provided with more than two second-stage pins 14, and the first-stage pins 13 and the second-stage pins 14 are both arranged near the bottom of the insulating housing 1. The number of the first stage pins 13 is determined by the number of the primary coils, and the number of the second stage pins 14 is determined by the number of the secondary coils, in this embodiment, the number of the first stage pins 13 is 3, and the number of the second stage pins 14 is 3. The lead lines of the primary coils are connected to the corresponding first-stage pins 13, and the lead lines of the secondary coils are connected to the corresponding second-stage pins 14. Of course, the first-stage pin 13 may be connected to the lead line of the secondary coil, and the second-stage pin 14 may be connected to the lead line of the primary coil.
The top 15 and the rear outer side wall 16 of the insulating housing 1 are provided with more than two lead slots 17, the lead slots 17 extend from the opening to the direction of the second-stage pins 14, and the lead wires of the secondary coil are positioned in the lead slots 17. Any two lead grooves 17 are arranged in parallel. The number of the lead grooves 17 is determined by the number of the secondary coils, and in the present embodiment, the number of the lead grooves 17 is 4. The surface of the rear outer side wall 16 is disposed obliquely with respect to the roof 15.
Referring to fig. 4, the bottom of the insulating housing 1 is provided with a plurality of grooves 18, the plurality of grooves 18 extend from the left outer side wall of the insulating housing to the right outer side wall of the insulating housing 1, the plurality of grooves 18 are arranged in parallel, the plurality of grooves 18 are uniformly arranged at the bottom of the insulating housing 1, and the width of each groove 18 is equal. The number of the grooves 18 can be set as required, and in the present embodiment, the number of the grooves 18 is two. By providing the plurality of grooves 18, the climbing distance of the first-stage pins 13 and the second-stage pins 14 at the bottom of the insulating housing 1 is increased, thereby improving the insulating property.
Referring to fig. 5, the first stage pin 13 and the second stage pin 14 are both provided integrally with the insulating housing 1. The first-stage pin 13 and the second-stage pin 14 are both U-shaped pins, a first end 121 of the first-stage pin 13 is close to the opening of the open magnetic core cavity 11, and a second end 122 of the first-stage pin 13 extends out of the bottom of the insulating shell 1. The first end 121 of the first stage pin 13 protrudes beyond the front side wall 12 of the insulating housing 1 by a length greater than the length of the second end 122 of the first stage pin 13 protruding beyond the front side wall 12 of the insulating housing 1. First end 131 of second stage lead 14 is located at a side close to lead groove 17, and second end 132 of second stage lead 14 protrudes from the bottom of insulating housing 1. The length of the first end 131 of the second stage pin 14 extending out of the rear outer side wall 16 of the insulating housing 1 is greater than the length of the second end 122 of the first stage pin 13 extending out of the rear outer side wall 16 of the insulating housing 1.
As can be seen from the above description, the high-isolation electronic transformer according to the present invention has the lead slots 17 disposed on the top 15 and the rear outer sidewall 16 of the insulating housing 1 for mounting the outgoing lines, so that the creepage distance and the electrical gap between the primary pin and the secondary pin of the transformer are increased, compared to the conventional structure in which the outgoing lines cross from the side, thereby improving the insulating performance of the primary pin and the secondary pin and increasing the safety. Meanwhile, the grooves 18 are formed in the bottom, so that the creepage distance and the electric clearance between the primary pin and the secondary pin are further increased, and the insulating property is further improved. In addition, the first-stage pins 13 and the second-stage pins 14 are both U-shaped pins, so that automatic end pin winding, automatic wire branching and automatic laser peeling in a subsequent process can be realized, automatic production is realized finally, and the production efficiency and the product quality are greatly improved.
It should be noted that the above is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept also fall within the protection scope of the present invention.
Claims (9)
1. A high-isolation electronic transformer comprises an insulating shell, wherein the insulating shell is provided with an open magnetic core cavity for mounting a magnetic core, and is characterized in that,
the opening of the opening magnetic core cavity is positioned on the front side wall of the insulating shell, more than two first-stage pins are arranged at the opening of the opening magnetic core cavity, more than two second-stage pins are arranged on the rear outer side wall of the insulating shell, which is opposite to the opening, and the first-stage pins and the second-stage pins are both arranged close to the bottom of the insulating shell;
the top of the insulating shell and the rear outer side wall are provided with more than two lead grooves, and the lead grooves extend from the opening to the direction of the second-stage pins.
2. The high-isolation electronic transformer of claim 1,
any two lead slots are arranged in parallel.
3. The high-isolation electronic transformer of claim 1,
the bottom of insulating housing is provided with a plurality of recesses, and is a plurality of the recess by the left lateral wall of insulating housing extends to the right lateral wall of insulating housing, and is a plurality of the recess is parallel arrangement.
4. High isolation electronic transformer according to any of claims 1 to 3,
the first-stage pin and the second-stage pin are both U-shaped pins.
5. The high-isolation electronic transformer of claim 4,
the first end of the first-stage pin is close to the opening of the open magnetic core cavity, and the second end of the first-stage pin extends out of the bottom of the insulating shell.
6. The high-isolation electronic transformer of claim 5,
the length of the first end of the first-stage pin extending out of the front side wall is greater than the length of the second end of the first-stage pin extending out of the front side wall.
7. The high-isolation electronic transformer of claim 4,
the first ends of the second-level pins are located on one side close to the lead grooves, and the second ends of the second-level pins extend out of the bottom of the insulating shell.
8. The high-isolation electronic transformer of claim 7,
the length of the first end of the second-stage pin extending out of the rear outer side wall is larger than the length of the second end of the first-stage pin extending out of the rear outer side wall.
9. High isolation electronic transformer according to any of claims 1 to 3,
the surface of the rear outer side wall is obliquely arranged relative to the top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121962636.6U CN216450469U (en) | 2021-08-19 | 2021-08-19 | High-isolation electronic transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121962636.6U CN216450469U (en) | 2021-08-19 | 2021-08-19 | High-isolation electronic transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216450469U true CN216450469U (en) | 2022-05-06 |
Family
ID=81348449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121962636.6U Active CN216450469U (en) | 2021-08-19 | 2021-08-19 | High-isolation electronic transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216450469U (en) |
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2021
- 2021-08-19 CN CN202121962636.6U patent/CN216450469U/en active Active
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