Anti-creepage transformer framework structure

Abstract

The utility model discloses an anti-creepage transformer framework structure which comprises a magnetic core support, a first PIN support, a second PIN support, a plurality of first PINs distributed on the first PIN support and a plurality of second PINs distributed on the second PIN support, the first PIN support and the second PIN support are symmetrically arranged, a first support baffle is vertically arranged between every two first PINs on the first PIN support, and a second support baffle is vertically arranged between every two adjacent first PINs on the second PIN support. And a second bracket baffle is vertically arranged between every two second PINs on the second PIN support and the adjacent second PINs. By adopting the above structure, the first support baffle plate is vertically arranged between every two first PINs on the first PIN support and the adjacent first PINs, and the second support baffle plate is vertically arranged between every two second PINs on the second PIN support and the adjacent second PINs, so that the first support baffle plates and the second support baffle plates are utilized to achieve a good isolation effect. The creepage distance is increased by more than 4mm on the original basis, and the insulation between the windings is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of anti-creep transformer skeleton structures, especially a kind of anti-creep transformer skeleton structure with high safety factor under the condition of guaranteeing that skeleton size is not increased. BACKGROUND

[0002] There is a slight discharge phenomenon on the surface of the insulator between the two poles, causing the surface of the insulator to have a tree-like or leaf-like discharge trace. Generally, this discharge trace is not connected between the two poles, and the discharge is not continuous, but occurs under specific conditions, such as wet weather, contamination on the surface of the insulator, dust, etc. Over time, it can lead to insulation damage.

[0003] In the existing transformer skeleton structure, a plurality of PIN pins are arranged side by side. If the creepage effect needs to be improved, the height or other dimensions of the skeleton need to be increased to meet the use requirements of pollution level 3 and above and working voltage within 300V. Therefore, how to improve the creepage effect without increasing the size of the skeleton is a problem that needs to be solved urgently. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide an anti-creep transformer skeleton structure with high safety factor under the condition of guaranteeing that the size of the skeleton is not increased.

[0005] To solve the above technical problems, the technical scheme of the utility model is as follows: an anti-creep transformer skeleton structure, which is characterized by comprising a magnetic core support, a first PIN support and a second PIN support symmetrically arranged on the left and right sides of the magnetic core support and connected to the magnetic core support, a plurality of first PIN pins vertically and side by side arranged on the first PIN support, a plurality of second PIN pins vertically and side by side arranged on the second PIN support, a first support baffle vertically arranged between every two first PIN pins and the adjacent first PIN pin on the first PIN support, and a second support baffle vertically arranged between every two second PIN pins and the adjacent second PIN pin on the second PIN support.

[0006] Preferably, the first support baffle and the second support baffle each exceed the top surface of the corresponding first PIN support and the top surface of the second PIN support by more than 2mm.

[0007] Preferably, the width of the first support baffle and the width of the second support baffle each exceed the width of the corresponding first PIN support and the width of the second PIN support.

[0008] Preferably, the width of the first support baffle and the width of the second support baffle are each greater than 4mm.

[0009] Preferably, the first PIN support is provided with a plurality of first support posts for connecting the first PIN needles, the number of the first support posts being consistent with the number of the first PIN needles, and a first wire passing groove is arranged between the first support post and the adjacent first support post, and the first support stopper is located in the corresponding first wire passing groove.

[0010] Preferably, the width of the first wire passing groove is greater than 1 mm, and the depth of the first wire passing groove is greater than 2 mm.

[0011] Preferably, the second PIN support is provided with a plurality of second support posts for connecting the second PIN needles, the number of the second support posts being consistent with the number of the second PIN needles, and a second wire passing groove is arranged between the second support post and the adjacent second support post, and the second support stopper is located in the corresponding second wire passing groove.

[0012] Preferably, the width of the second wire passing groove is greater than 1 mm, and the depth of the second wire passing groove is greater than 2 mm.

[0013] Preferably, the first PIN support and the second PIN support are respectively provided with a first isolation boss at the bottom of the first PIN support and a second isolation boss at the bottom of the second PIN support, the first support stopper extends downward and is connected to the first isolation boss, and the second support stopper extends downward and is connected to the second isolation boss.

[0014] Preferably, the first isolation boss and the second isolation boss are both horizontally arranged.

[0015] The thickness of the first isolation boss and the second isolation boss is greater than or equal to 1 mm.

[0016] The distance between the first isolation boss and the side surface of the first PIN support is greater than 1 mm.

[0017] The distance between the second isolation boss and the side surface of the second PIN support is greater than 1 mm.

[0018] The advantages of this utility model are as follows: By adopting the above structure, the anti-creep transformer frame structure includes a magnetic core support, a first PIN support and a second PIN support, a plurality of first PIN pins distributed on the first PIN support, and a plurality of second PIN pins distributed on the second PIN support. While ensuring that the frame size does not increase, a first support baffle is vertically arranged between every two first PIN pins and adjacent first PIN pins on the first PIN support, and a second support baffle is vertically arranged between every two second PIN pins and adjacent second PIN pins on the second PIN support. The first support baffle and the second support baffle achieve a good isolation effect, which increases the creepage distance by more than 4mm on the original basis, and significantly improves the insulation between windings. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a first-view perspective perspective of a transformer skeleton structure with anti-creep charging according to this utility model.

[0021] Figure 2 This is a second-view perspective perspective of a transformer skeleton structure with anti-creep charging according to this utility model.

[0022] Figure 3 This is a three-dimensional view of a transformer skeleton structure with anti-creep charging according to the present invention, including a first PIN pin and a second PIN pin.

[0023] Figure 4 This is a front view of a transformer skeleton structure with anti-creep charging according to this utility model.

[0024] Figure 5 This is a left view of a transformer skeleton structure with anti-creep charging according to this utility model.

[0025] Figure 6 This is a top view of a transformer skeleton structure with anti-creep charging according to this utility model.

[0026] In the figure: 1-Magnetic core support, 2-First PIN support, 3-Second PIN support, 4-First PIN pin, 5-Second PIN pin, 6-First support baffle, 7-Second support baffle, 8-First support post, 9-First wire guide groove, 10-Second support post, 11-Second wire guide groove, 12-First isolation boss, 13-Second isolation boss. Detailed Implementation

[0027] The anti-creepage transformer framework structure of the utility model discloses a magnetic core support 1, the first PIN support 2 and the second PIN support 3 that are symmetrically arranged on the left and right sides of the magnetic core support 1 and are distributed on the magnetic core support 1, a plurality of first PIN needles 4 that are vertically arranged and are arranged side by side on the first PIN support 2, a plurality of second PIN needles 5 that are vertically arranged and are arranged side by side on the second PIN support 3, a first support baffle 6 is vertically arranged between every two first PIN needles 4 and the adjacent first PIN needle 4 on the first PIN support 2, and a second support baffle 7 is vertically arranged between every two second PIN needles 5 and the adjacent second PIN needle 5 on the second PIN support 3.

[0028] In order to guarantee the isolation effect, considering that the first PIN needle 4 / second PIN needle 5 needs to be finally wound and welded, there will be a welding point height, the first support baffle 6 and the second support baffle 7 are more than 2mm higher than the top surface of the corresponding first PIN support 2 and the top surface of the second PIN support 3. The width of the first support baffle 6 and the width of the second support baffle 7 are more than the width of the corresponding first PIN support 2 and the width of the second PIN support 3. The width of the first support baffle 6 and the width of the second support baffle 7 are more than 4mm.

[0029] In order to consider realizing automatic winding, a plurality of first support columns 8 for connecting the corresponding first PIN needle 4 are arranged on the first PIN support 2, the number of the first support column 8 is consistent with the number of the first PIN needle 4, a first wire passing groove 9 is arranged between the first support column 8 and the adjacent first support column 8, and the first support baffle 6 is located in the corresponding first wire passing groove 9. The width of the first wire passing groove 9 is more than 1mm, and the depth of the first wire passing groove 9 is more than 2mm. A plurality of second support columns 10 for connecting the corresponding second PIN needle 5 are arranged on the second PIN support 3, the number of the second support column 10 is consistent with the number of the second PIN needle 5, a second wire passing groove 11 is arranged between the second support column 10 and the adjacent second support column 10, and the second support baffle 7 is located in the corresponding second wire passing groove 11. The width of the second wire passing groove 11 is more than 1mm, and the depth of the second wire passing groove 11 is more than 2mm.

[0030] In order to improve the risk of direct contact of the lead-out wire with other windings, the slot depth of the first wire passing slot 9 / second wire passing slot 11 is greater than 2mm, which is directly connected to the position of the wire slot, so that the lead-out wire is directly deep into the wire passing slot, thereby solving the risk caused by direct contact with other windings.

[0031] Considering the distance from the welding point to the magnetic core, the first PIN support 2 and the second PIN support 3 are respectively provided with a first isolation boss 12 and a second isolation boss 13 located at the bottom of the first PIN support 2 and the bottom of the second PIN support 3, the first support baffle 6 extends downward and is connected to the first isolation boss 12, and the second support baffle 7 extends downward and is connected to the second isolation boss 13. The first isolation boss 12 and the second isolation boss 13 are both horizontally arranged; the thickness of the first isolation boss 12 and the second isolation boss 13 is greater than or equal to 1mm; the distance of the first isolation boss 12 beyond the side surface of the first PIN support 2 is greater than 1mm; the distance of the second isolation boss 13 beyond the side surface of the second PIN support 3 is greater than 1mm. The first isolation boss 12 and the second isolation boss 13 are respectively added to the first PIN support 2 and the second PIN support 3, and the design thickness is greater than 1mm, and the protruding length is greater than 1mm, which can increase the creepage distance of the magnetic core to the secondary welding point by ≥2.3mm.

[0032] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the patent. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A creepage-resistant transformer core structure, characterized by: The anti-creep transformer skeleton structure comprises a magnetic core support, a first PIN support and a second PIN support symmetrically arranged on the left and right sides of the magnetic core support and connected to the magnetic core support, a plurality of first PIN pins vertically and side by side arranged on the first PIN support, a plurality of second PIN pins vertically and side by side arranged on the second PIN support, a first support baffle vertically arranged between every two first PIN pins and the adjacent first PIN pin on the first PIN support, and a second support baffle vertically arranged between every two second PIN pins and the adjacent second PIN pin on the second PIN support.

2. A creepage-resistant transformer tank structure according to claim 1, characterized in that: The first support baffle and the second support baffle each exceed the top surface of the corresponding first PIN support and the top surface of the second PIN support by more than 2 mm.

3. A creepage-resistant transformer core structure according to claim 1, characterized in that: The width of the first support baffle and the width of the second support baffle each exceed the width of the corresponding first PIN support and the width of the second PIN support.

4. A creepage-resistant transformer tank structure according to claim 3, characterized in that: The width of the first support baffle and the width of the second support baffle each are greater than 4 mm.

5. A creepage-resistant transformer core structure according to claim 1, characterized in that: The first PIN support is provided with a plurality of first support columns for connecting the corresponding first PIN pins, the number of the first support columns is consistent with the number of the first PIN pins, a first wire passing groove is arranged between the first support column and the adjacent first support column, and the first support baffle is located in the corresponding first wire passing groove.

6. A creepage-resistant transformer tank structure according to claim 5, characterized in that: The width of the first wire passing groove is greater than 1 mm, and the depth of the first wire passing groove is greater than 2 mm.

7. A creepage-resistant transformer tank structure according to claim 1, characterized in that: The second PIN support is provided with a plurality of second support columns for connecting the corresponding second PIN pins, the number of the second support columns is consistent with the number of the second PIN pins, a second wire passing groove is arranged between the second support column and the adjacent second support column, and the second support baffle is located in the corresponding second wire passing groove.

8. A creepage-resistant transformer tank structure according to claim 7, characterized in that: The width of the second wire passing groove is greater than 1 mm, and the depth of the second wire passing groove is greater than 2 mm.

9. A creepage-resistant transformer tank structure according to claim 1, characterized in that: The first PIN support and the second PIN support are respectively provided with a first isolation boss at the bottom of the first PIN support and a second isolation boss at the bottom of the second PIN support, the first support baffle extends downward and is connected to the first isolation boss, and the second support baffle extends downward and is connected to the second isolation boss.

10. A creepage-resistant transformer tank structure according to claim 9, characterized in that: The first isolation boss and the second isolation boss are each horizontally arranged; The thickness of the first isolation boss and the thickness of the second isolation boss are each greater than or equal to 1 mm; The distance between the first isolation boss and the side surface of the first PIN support is greater than 1 mm; The distance between the second isolation boss and the side surface of the second PIN support is greater than 1 mm.

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