CN217134176U

CN217134176U - Switch power supply transformer with secondary winding outgoing wire groove

Info

Publication number: CN217134176U
Application number: CN202220752706.3U
Authority: CN
Inventors: 刘华朝
Original assignee: Shenzhen Zhongzheng Magnetic Energy Technology Co ltd
Current assignee: Shenzhen Zhongzheng Magnetic Energy Technology Co ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-08-05
Anticipated expiration: 2032-03-31

Abstract

The utility model relates to a power transformer equipment technical field especially relates to a switching power supply transformer with secondary winding metallic channel that is qualified for next round of competitions, including bobbin, magnetic core group and winding, bobbin includes wrapping post and the upper end plate and the lower end plate of locating the wrapping post both ends, lower end plate both sides bottom is equipped with primary and secondary support respectively, be equipped with the contact pin on the primary, be equipped with the ply-yarn drill hole on the secondary support, the secondary support cross-section is "C" type structure, has the metallic channel in the secondary support, the metallic channel intercommunication is to the metallic channel in the card hole. The utility model has the advantages that the wire clamp holes are arranged on the secondary support, so that the appearance end of the secondary winding can be directly led out from the wire clamp hole without installing a secondary contact pin, and the production process is simplified; and the lead groove is arranged on the secondary support, so that the wire outgoing end of the secondary winding can be hidden in the lead groove, the phenomenon that the wire skin of the wire outgoing part directly contacts high-temperature tin in the tin immersion process environment is avoided, and the wire skin of the wire outgoing end is protected.

Description

Switch power supply transformer with secondary winding outgoing wire groove

Technical Field

The utility model relates to a power transformer equipment technical field especially relates to a switching power supply transformer with secondary winding wire casing of being qualified for next round of competitions.

Background

The switch transformer is a power transformer added with a switch tube, is a high-frequency electric energy conversion device, and has the functions of insulation isolation and power transmission in addition to the voltage conversion function of a common transformer in a circuit; the switch transformer generally comprises a magnetic core, a coil wound on the magnetic core and pin terminals installed on the magnetic core, wherein the end parts of the coil are welded with the corresponding pin terminals for use, and in the production and manufacturing process of the transformer, in order to facilitate the welding of the end parts of the coil and the pin terminals, the exposed lead of the transformer needs to be subjected to tin immersion treatment.

At present, the outlet ends of a primary winding and a secondary winding of a switching power supply transformer in the prior art are directly led out and then mounted on pin terminals, the production process is complex, and the outlet ends are directly led out, so that when the transformer is subjected to tin immersion treatment, the outlet parts of the primary winding and the secondary winding are easily and directly contacted with high-temperature tin, and therefore the wire skin of the outlet part is directly melted, and the service life of the transformer is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem in the above-mentioned background art, the utility model provides a switching power supply transformer with secondary winding metallic channel that is qualified for the next round of competitions can avoid the line skin of the part of being qualified for the next round of competitions to directly contact high temperature tin at wicking technology environment, has protected the line skin of leading-out terminal, has simplified production technology simultaneously.

The utility model provides a scheme that its technical problem took is: the utility model provides a switching power supply transformer with secondary winding metallic channel that is qualified for next round of competitions, includes bobbin, magnetic core group and twines the winding on bobbin, bobbin includes wrapping post and upper end plate and the lower end plate of locating wrapping post both ends, lower end plate both sides bottom is equipped with primary and secondary support respectively, be equipped with the contact pin on the primary, be equipped with the ply-yarn drill hole on the secondary support, the secondary support cross-section is "C" shape structure, has the metallic channel in the secondary support, the ply-yarn drill hole communicates to the metallic channel.

By adopting the technical scheme, the production process of the transformer is simplified, the wire outgoing end of the secondary winding can be hidden in the wire groove, the wire skin of the wire outgoing part is prevented from directly contacting high-temperature tin in the tin immersion process environment, and the wire skin of the wire outgoing end of the secondary winding is protected.

Furthermore, a connecting channel for equally dividing the secondary support is arranged in the middle of the secondary support, two ends of the connecting channel are respectively communicated with the wire groove and the winding part of the winding post, and the wire clamping holes are symmetrically arranged on two sides of the connecting channel.

By adopting the technical scheme, the outlet end of the secondary winding can be led out from the connecting channel to the wire groove, so that the outlet of the secondary winding is facilitated.

Furthermore, winding stoppers are arranged on two sides of the connecting channel, and the wire grooves are arranged around the winding stoppers.

Furthermore, wire clamping blocks which are symmetrically arranged by taking the connecting channel as a symmetry axis are arranged at the bottoms of the two ends of the secondary support, and the wire clamping holes are formed in the wire clamping blocks.

By adopting the technical scheme, the outgoing line part of the secondary winding can be separated through the winding stop block and is respectively inserted into the line card holes of the two line clamping blocks.

Furthermore, an opening communicated with the wire clamping hole is formed in the wire clamping block, and the opening is expanded towards two sides.

By adopting the technical scheme, the outgoing line part of the secondary winding can be conveniently inserted into the line clamping hole.

Further, the position punishment that the upper end plate corresponds with primary support and sub-mount do not are equipped with primary dog and secondary dog, primary dog, secondary dog combine with the upper end plate to form the installation department, primary support, sub-mount combine with the lower extreme board to form down the installation department, last magnetic core and lower magnetic core that magnetic core group set up including the symmetry, go up the magnetic core and install respectively in last installation department and lower installation department with lower magnetic core.

Furthermore, a through hole is formed in the winding post, a magnetic core post is arranged on the end face, opposite to the lower magnetic core, of the upper magnetic core, and the magnetic core post is inserted into the through hole in an inserting mode.

Through adopting above-mentioned technical scheme, the installation of magnetic core and lower magnetic core is gone up in the realization, is convenient for carry on spacingly and fixedly to the installation of going up magnetic core and lower magnetic core simultaneously.

Furthermore, a primary wire hanging part is arranged on the primary check block, and lead slots communicated with the winding posts are arranged on two sides of the primary wire hanging part.

By adopting the technical scheme, the outgoing line part of the primary winding can be led out through the lead groove and bypasses the primary hanging line part to realize the connection with the contact pin.

Furthermore, an insulating gasket is arranged at the bottom of the winding framework and is inserted into the lower mounting part.

By adopting the technical scheme, the insulation strength of the primary winding and the secondary winding is enhanced, and the length of the transformer is shortened.

To sum up, the beneficial effects of the utility model are that:

1. the utility model discloses a set up the line card hole on the secondary support, make secondary winding's appearance end directly draw forth from the ply-yarn drill hole, need not to install secondary contact pin, thereby simplified the utility model discloses a production technology.

2. The utility model discloses a set up the cross-section and be the secondary support of "C" shape structure, make secondary support lateral wall department form the metallic channel, set up the interface channel at intercommunication metallic channel and wrapping post wire winding position simultaneously in the middle of the secondary support, make secondary winding's leading-out terminal can draw forth to the metallic channel in following interface channel, and draw forth to the ply-yarn drill in following the metallic channel, make secondary winding's leading-out terminal can hide in the metallic channel, the line skin of having avoided the part of being qualified for the next round of competitions is at wicking technology environment direct contact high temperature tin, the line skin of leading-out terminal has been protected.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is a schematic structural view of another angle in the present embodiment;

FIG. 3 is a schematic structural diagram of the bobbin of the present embodiment;

fig. 4 is an exploded view of the present embodiment.

In the figure: 1. winding a bobbin; 11. a winding post; 111. a through hole; 12. an upper end plate; 121. a primary stopper; 122. a secondary stop; 123. a primary wire hanging part; 124. a lead slot; 13. a lower end plate; 2. a magnetic core group; 21. an upper magnetic core; 22. a lower magnetic core; 23. a magnetic core column; 3. a primary support; 31. inserting a pin; 4. a secondary support; 41. a wire clamp hole; 42. a wire guide groove; 43. a connecting channel; 44. a winding stop block; 45. a wire clamping block; 451. an opening; 5. an upper mounting portion; 6. a lower mounting portion; 7. and an insulating gasket.

Detailed Description

In order that the present invention may be more readily and clearly understood, the following description of the present invention is provided in connection with the accompanying drawings.

It should be noted that the terms "center", "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. used herein are used for indicating the orientation or positional relationship based on the orientation or positional relationship 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. "plurality" means two or more unless otherwise specified.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1 and 2, a switching power transformer with a secondary winding outgoing wire groove includes a bobbin 1, a magnetic core group 2, and a winding wound on the bobbin 1, where the bobbin 1 of this embodiment includes a winding post 11, and an upper end plate 12 and a lower end plate 13 disposed at two ends of the winding post 11, and the upper end plate 12 and the lower end plate 13 form a winding position outside the winding post 11, so as to facilitate winding of the winding; the primary bracket 3 and the secondary bracket 4 are respectively arranged at the bottom of the two sides of the lower end plate 13 of the present embodiment, and the winding comprises a primary winding and a secondary winding, so that the outgoing line part of the primary winding is connected to the primary bracket 3, and the outgoing line part of the secondary winding can be connected to the secondary bracket 4, thereby realizing the electrical connection between the winding and the equipment through the primary bracket 3 and the secondary bracket 4, and realizing the installation of the power transformer of the present embodiment.

As shown in fig. 2, a pin 31 is arranged on the primary bracket 3, and the outgoing line part of the primary winding is led out and then connected to the pin 31 of the primary bracket 3; as shown in fig. 3, the secondary bracket 4 of the present embodiment is only provided with the wire clip hole 41, and the pin 31 is not required, compared with the prior art, the production process of the transformer is simplified, and the production cost can be reduced, and the outgoing line part of the secondary winding can be directly clipped into the wire clip hole 41 after being led out, thereby realizing the electrical connection with the device.

As shown in fig. 3, the cross section of the secondary support 4 of the present embodiment is a "C" shaped structure, so that a wire groove 42 is formed at the side wall of the secondary support 4, wherein the wire clip hole 41 is communicated with the wire groove 42, so that the outgoing line part of the secondary winding can be led out from the wire groove 42 and connected into the wire clip hole 41; meanwhile, in the embodiment, the lead groove 42 is arranged, so that the outgoing line part of the secondary winding can be hidden in the lead groove 42 when being led out, the skin of the outgoing line part of the secondary winding is prevented from directly contacting high-temperature tin in a tin immersion process environment, and the skin of the outgoing line end is protected.

As shown in fig. 3, a connecting channel 43 equally dividing the secondary support 4 into two parts is disposed in the middle of the secondary support 4, wherein two ends of the connecting channel 43 are respectively communicated with the wire groove 42 and the winding portion of the winding post 11, so that the outlet end of the secondary winding wound on the winding post 11 can be directly connected to the wire groove 42 from the connecting channel 43, thereby facilitating the leading-out of the outlet portion of the secondary winding.

The wire card holes 41 of the present embodiment are symmetrically disposed at two sides of the connecting channel 43, and the outgoing line portions of the secondary windings are led out from the connecting channel 43 and then connected to the wire card holes 41 at two sides along the wire grooves 42, respectively, for connection, wherein the two sides of the connecting channel 43 of the present embodiment are provided with the winding stoppers 44, and the wire grooves 42 are disposed around the winding stoppers 44, so that the outgoing line portions of the secondary windings led out from the connecting channel 43 can be separated by the winding stoppers 44 and inserted into the wire card holes 41.

As shown in fig. 3, the bottom of the two ends of the secondary support 4 of this embodiment is provided with wire clamping blocks 45 symmetrically arranged with the connecting channel 43 as a symmetry axis, the wire clamping holes 41 are provided on the wire clamping blocks 45, and the outgoing line part of the secondary winding is led out from the wire groove 42 and then inserted into the wire clamping holes 41; the wire-clamping block 45 of this embodiment is provided with an opening 451 communicating with the wire-clamping hole 41, and the opening 451 is expanded towards both sides, so that the outgoing line part of the secondary winding is conveniently inserted into the wire-clamping hole 41.

As shown in fig. 4, a primary stopper 121 and a secondary stopper 122 are respectively disposed at positions of the upper end plate 12 corresponding to the primary bracket 3 and the secondary bracket 4, wherein the primary stopper 121 and the secondary stopper 122 of this embodiment are combined with the upper end plate 12 to form an upper mounting portion 5, the primary bracket 3, the secondary bracket 4 are combined with the lower end plate 13 to form a lower mounting portion 6, and when the magnetic core set 2 is mounted on the bobbin 1, the upper magnetic core 21 and the lower magnetic core 22 symmetrically disposed on the magnetic core set 2 are respectively mounted in the upper mounting portion 5 and the lower mounting portion 6, so as to fix the upper magnetic core 21 and the lower magnetic core 22; meanwhile, after the upper magnetic core 21 is installed, the surfaces of the primary stopper 121 and the secondary stopper 122, which are close to each other, are attached to the two sides of the upper magnetic core 21, so that the upper magnetic core 21 is limited and fixed; lower magnetic core 22 installation back, primary support 3 and the mutual one side laminating that is close to of secondary support 4 are in the both sides of magnetic core 22 down, carry on spacingly and fixed to magnetic core 22 down to realize the stable installation of magnetic core group 2.

The through hole 111 is provided in the winding post 11 of this embodiment, and meanwhile, the magnetic post 23 is provided on the end surface of the upper magnetic core 21 opposite to the lower magnetic core 22, so that when the upper magnetic core 21 and the lower magnetic core 22 are installed, the magnetic post 23 can be inserted into the through hole 111 for connection and fixation.

The primary stopper 121 of the present embodiment is provided with a primary hanging portion 123, and both sides of the primary hanging portion 123 are provided with lead slots 124 communicated with the inside of the winding post 11, so that the outgoing line part of the primary winding can be led out from the lead slots 124, and is hung through the primary hanging portion 123 to be connected to the inside of the contact pin 31 of the primary bracket 3, thereby facilitating the leading-out and connection of the outgoing line part of the primary winding.

As shown in fig. 1, fig. 2 and fig. 4, the bottom of the bobbin 1 of the present embodiment is further provided with an insulating spacer 7, wherein the insulating spacer 7 is inserted into the lower mounting portion 6 to surround the bobbin 1, the assembly of the winding and the magnetic core set 2, so that the insulating strength between the primary winding and the secondary winding can be enhanced, and the length of the transformer can be shortened.

The working principle of the embodiment is as follows: in the embodiment, the wire clamp hole 41 is formed in the secondary support 4, so that the emergence end of the secondary winding can be directly led out from the wire clamp hole 41 without mounting the secondary pin 31, and the production process of the embodiment is simplified; meanwhile, in the embodiment, the secondary support 4 with the cross section of the C-shaped structure is arranged, so that the wire groove 42 is formed in the side wall of the secondary support 4, the connecting channel 43 for communicating the wire groove 42 with the winding position of the winding post 11 is arranged in the middle of the secondary support 4, so that the wire outgoing end of the secondary winding can be led out from the connecting channel 43 into the wire groove 42 and led out from the wire groove 42 into the wire clamp hole 41, the wire outgoing end of the secondary winding can be hidden in the wire groove 42, the phenomenon that the wire skin of the wire outgoing part directly contacts with high-temperature tin in the tin immersion process environment is avoided, and the wire skin of the wire outgoing end is protected.

The above-mentioned embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and modifications made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. The utility model provides a switching power supply transformer with secondary winding wire casing of being qualified for next round of competitions, includes bobbin (1), magnetic core group (2) and twines the winding on bobbin (1), its characterized in that: the winding frame (1) comprises a winding post (11), an upper end plate (12) and a lower end plate (13), wherein the upper end plate (12) and the lower end plate (13) are arranged at two ends of the winding post (11), primary supports (3) and secondary supports (4) are respectively arranged at two side bottoms of the lower end plate (13), contact pins (31) are arranged on the primary supports (3), wire clamp holes (41) are formed in the secondary supports (4), the cross sections of the secondary supports (4) are of C-shaped structures, wire guide grooves (42) are formed in the secondary supports (4), and the wire clamp holes (41) are communicated into the wire guide grooves (42).

2. A switching power transformer with secondary winding outlet slots as claimed in claim 1, wherein: the middle of the secondary support (4) is provided with a connecting channel (43) which equally divides the secondary support (4), two ends of the connecting channel (43) are respectively communicated with the wire groove (42) and the winding part of the winding post (11), and the wire clamping holes (41) are symmetrically arranged at two sides of the connecting channel (43).

3. A switching power transformer with secondary winding outlet slots as claimed in claim 2, wherein: winding stoppers (44) are arranged on two sides of the connecting channel (43), and the wire grooves (42) are arranged around the winding stoppers (44).

4. A switching power transformer with secondary winding outlet slots as claimed in claim 3, characterized by: wire clamping blocks (45) which are symmetrically arranged by taking the connecting channel (43) as a symmetry axis are arranged at the bottoms of the two ends of the secondary support (4), and wire clamping holes (41) are formed in the wire clamping blocks (45).

5. A switching power transformer with secondary winding outlet slots as claimed in claim 4, wherein: an opening (451) communicated with the wire clamping hole (41) is formed in the wire clamping block (45), and the opening (451) is expanded towards two sides.

6. A switching power transformer with secondary winding outlet slots as claimed in claim 1, wherein: the utility model discloses a magnetic core group, including last end plate (12), last end plate (3) and secondary support (4), position department that corresponds is equipped with primary dog (121) and secondary dog (122) respectively, primary dog (121), secondary dog (122) combine with upper end plate (12) to form installation department (5), primary dog (3), secondary support (4) combine with lower end plate (13) to form installation department (6) down, last magnetic core (21) and lower magnetic core (22) that magnetic core group (2) set up including the symmetry, go up magnetic core (21) and lower magnetic core (22) and install respectively in last installation department (5) and lower installation department (6).

7. A switching power transformer with secondary winding outlet slots as claimed in claim 6, wherein: the magnetic core is characterized in that a through hole (111) is formed in the winding post (11), magnetic core posts (23) are arranged on the end faces, opposite to the upper magnetic core (21) and the lower magnetic core (22), of the upper magnetic core, and the magnetic core posts (23) are inserted into the through hole (111).

8. A switching power transformer with secondary winding outlet slots as claimed in claim 6, wherein: the primary stopper (121) is provided with a primary hanging part (123), and both sides of the primary hanging part (123) are provided with lead grooves (124) communicated with the winding posts (11).

9. A switching power transformer with secondary winding outlet slots as claimed in claim 6, wherein: the bottom of the winding framework (1) is provided with an insulating gasket (7), and the insulating gasket (7) is inserted into the lower mounting part (6).