CN213905110U

CN213905110U - Transformer for street lamp power supply

Info

Publication number: CN213905110U
Application number: CN202120119085.0U
Authority: CN
Inventors: 黄相程; 张召凤
Original assignee: Shenzhen Yudu Lighting Co ltd
Current assignee: Shenzhen Yudu Lighting Co ltd
Priority date: 2021-01-16
Filing date: 2021-01-16
Publication date: 2021-08-06
Anticipated expiration: 2031-01-16

Abstract

The utility model relates to a transformer for street lamp power, it includes coil skeleton, be provided with primary and secondary on the coil skeleton, the both ends of coil skeleton are provided with insulating sheath, are located the insulating sheath pressfitting respectively at coil skeleton both ends primary and secondary wear to be equipped with the magnetic core in the coil skeleton, the last wear to establish hole of having seted up of insulating sheath, the magnetic core is worn to establish in the wear to establish downthehole, be provided with a plurality of pins on the coil skeleton, primary and secondary are located different pin electricity connections respectively. The application has the effect of enhancing the insulation property.

Description

Transformer for street lamp power supply

Technical Field

The application relates to the field of transformers, in particular to a transformer for a street lamp power supply.

Background

At present, a transformer includes a bobbin, a magnetic core, a primary coil and a secondary coil, the primary coil and the secondary coil are wound on the bobbin, and the magnetic core is inserted into the bobbin.

In the manufacture of the transformer, the primary coil is generally wound on the framework, then the adhesive tape is wound on the primary coil, then the secondary coil is wound, and after the winding of the transformer coil is completed, the magnetic core is mounted, so that the production of the transformer is completed.

With respect to the related art described above, the inventors consider that there is a defect of poor insulation.

SUMMERY OF THE UTILITY MODEL

In order to strengthen the insulating property, the application provides a transformer for street lamp power.

The application provides a street lamp is transformer for power adopts following technical scheme:

the utility model provides a transformer for street lamp power, includes the coil skeleton, be provided with primary and secondary on the coil skeleton, the both ends of coil skeleton are provided with insulating sheath, are located the insulating sheath pressfitting respectively at coil skeleton both ends primary and secondary, wear to be equipped with the magnetic core in the coil skeleton, set up on the insulating sheath and wear to establish the hole, the magnetic core is worn to establish in wearing to establish the hole, be provided with a plurality of pins on the coil skeleton, primary and secondary are connected in different pin electricity respectively.

Through adopting above-mentioned technical scheme, through setting up insulating sheath and insulating sheath pressfitting primary coil and secondary coil, because insulating sheath's isolation for primary coil and secondary coil are difficult for discharging, thereby play better insulating effect to primary coil and secondary coil.

Preferably, the coil skeleton includes the skeleton main part, sets up at the joint ring at skeleton main part middle part, sets up spacing ring, the fixed connection mount pad on the spacing ring at skeleton main part both ends, the both ends of primary coil are contradicted with spacing ring and joint ring respectively, secondary's both ends are contradicted with spacing ring and joint ring respectively, insulating sheath closes on the spacing ring with mount pad fixed connection and lid, pin and mount pad fixed connection, the magnetic core is worn to establish in the skeleton main part.

Through adopting above-mentioned technical scheme, joint ring and spacing ring contradict with primary and secondary coil, restrict primary and secondary coil to external discharge to further strengthened the insulation to primary and secondary coil.

Preferably, the joint ring includes base portion and fixed connection on the skeleton main part and the annular portion that just encircles the base portion of fixed connection on the base portion, primary coil and secondary coil are located the both sides of base portion and all contradict with the annular portion.

By adopting the technical scheme, the arrangement of the annular part enables the contact area of the clamping ring with the primary coil and the secondary coil to be larger, and limits the discharge of the primary coil and the secondary coil to the outside, thereby further enhancing the insulation of the primary coil and the secondary coil.

Preferably, the mounting seat is fixedly connected with a reinforcing rib, and the reinforcing rib is fixedly connected with the limiting ring.

Through adopting above-mentioned technical scheme, the setting up of strengthening rib has strengthened the joint strength between spacing ring and the mount pad to make the mount pad be difficult for taking place to buckle with the spacing ring and break away from.

Preferably, insulating sheath includes that fixed connection installs piece, fixed connection the connection piece on the installation piece on the mount pad, the lid of fixed connection on the connection piece closes the ring piece, the through-hole is seted up on the connection piece, the connection piece is contradicted with the spacing ring, is located skeleton main part both ends the lid closes the ring piece and contradicts with primary and secondary coil respectively.

By adopting the technical scheme, the primary coil and the secondary coil are well positioned by the arrangement of the covering ring piece, meanwhile, the contact area of the insulating sheath with the primary coil and the secondary coil is large, and the discharge of the primary coil and the secondary coil to the outside is limited, so that the insulation of the primary coil and the secondary coil is further enhanced.

Preferably, the two ends of the mounting piece are fixedly connected with extending pieces, and the extending pieces are close to the framework main body.

Through adopting above-mentioned technical scheme, the setting of extension piece has carried out better spacing to the side of primary coil and secondary coil for the position of primary coil and secondary coil is comparatively stable.

Preferably, through connecting piece fixed connection between installation piece and the mount pad, the connecting piece includes the joint lug of fixed connection on the installation piece and sets up the joint recess on the mount pad, the joint lug inlays to be established in the joint recess.

Through adopting above-mentioned technical scheme, joint lug and joint recess mutually support for the installation of installation piece is comparatively convenient quick, and stability is higher.

Preferably, the primary coil and the secondary coil are both coated with insulating tapes.

By adopting the technical scheme, the arrangement of the insulating adhesive tape further enhances the insulativity of the primary coil and the secondary coil.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the insulating sheath and the isolation effect of the insulating sheath, the primary coil and the secondary coil are discharged to the periphery, so that a better insulating effect is achieved;

2. by providing the annular portion and the insulating tape, discharge of the primary coil and the secondary coil to the outside is further restricted, and insulation of the primary coil and the secondary coil is further enhanced.

Drawings

Fig. 1 is a schematic view of the overall structure of a street lamp power transformer.

Fig. 2 is a schematic view showing a connection structure of the skeleton body and the snap ring.

Fig. 3 is a schematic view showing a connection structure of the insulating sheath and the mounting base.

Fig. 4 is a schematic view showing a connection structure of the connection portion and the peripheral portion.

Description of reference numerals: 1. a coil bobbin; 11. a skeleton body; 12. a snap ring; 121. a base portion; 122. an annular portion; 13. a limiting ring; 14. a mounting seat; 141. reinforcing ribs; 142. a pin; 2. a primary coil; 3. a secondary coil; 4. an insulating sheath; 41. mounting a sheet; 411. an extension piece; 42. connecting sheets; 421. perforating holes; 43. covering the ring sheet; 44. a connecting member; 441. clamping the convex block; 442. clamping the groove; 5. a magnet; 51. a connecting portion; 52. a peripheral portion; 53. an insertion portion; 6. an adhesive block; 7. an insulating tape.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a transformer for a street lamp power supply. Referring to fig. 1 and 2, the transformer for the street lamp power supply comprises a coil frame 1, wherein the coil frame 1 comprises a circular tube-shaped frame main body 11, a clamping ring 12 fixedly connected to the middle of the frame main body 11, limiting rings 13 fixedly connected to two ends of the frame main body 11, and a mounting seat 14 fixedly connected to the limiting rings 13. The snap ring 12 includes a base portion 121 and an annular portion 122, the base portion 121 is annular, an inner wall of the base portion 121 is fixedly connected to the frame body 11, the annular portion 122 is annular, and an inner wall of the annular portion 122 is fixedly connected to a circumferential edge of the base portion 121. The joint of the mounting seat 14 and the limiting ring 13 is fixedly connected with a reinforcing rib 141, and one side of the mounting seat 14 away from the limiting ring 13 is fixedly connected with a plurality of pins 142.

Referring to fig. 2 and 3, two winding spaces are formed between the clamping ring 12 and the limiting ring 13 at two ends, the primary coil 2 and the secondary coil 3 are arranged on the framework main body 11, the primary coil 2 and the secondary coil 3 are respectively located in the two winding spaces, the primary coil 2 and the secondary coil 3 are formed by winding enameled wires on the framework main body 11, and the primary coil 2 and the secondary coil 3 are both wrapped by insulating adhesive tapes 7. The primary coil 2 and the secondary coil 3 are both welded with the pin 142, the primary coil 2 is connected with the input, and the secondary coil 3 is connected with the output. One end of the primary coil 2 near the base portion 121 collides with both the base portion 121 and the annular portion 122, and one end of the secondary coil 3 near the base portion 121 collides with both the base portion 121 and the annular portion 122.

Be provided with insulating sheath 4 on the spacing ring 13, insulating sheath 4 is including installation piece 41, connection piece 42 and lid close ring piece 43, installation piece 41 passes through connecting piece 44 fixed connection on mount pad 14, connection piece 42 fixed connection is on installation piece 41, wear to establish hole 421 has been seted up on the connection piece 42, lid closes ring piece 43 fixed connection and keeps away from one side of installation piece 41 at connection piece 42, the lid at both ends closes ring piece 43 and contradicts with the one end that basic portion 121 was kept away from to primary coil 2 and secondary coil 3 respectively one end of keeping away from basic portion 121. The connecting piece 44 includes a clamping protrusion 441 fixedly connected to a side of the mounting piece 41 away from the connecting piece 42 and a clamping groove 442 provided on the mounting seat 14, the clamping protrusion 441 is embedded in the clamping groove 442, and the mounting piece 41 abuts against the mounting seat 14. The two ends of the mounting piece 41 are fixedly connected with extending pieces 411, and the extending pieces 411 are located on two sides of the framework main body 11 and are close to the framework main body 11.

Referring to fig. 1 and 4, the magnetic core further includes two magnets 5, each magnet 5 includes a connecting portion 51, a peripheral portion 52 fixedly connected to two ends of the connecting portion 51, and an insertion portion 53 fixedly connected to the middle of the connecting portion 51, the insertion portion 53 is inserted into the frame body 11 and the insertion hole 421, ends of the insertion portions 53 of the two magnets 5 are abutted against each other, and ends of the peripheral portions 52 of the two magnets 5 are abutted against each other and fixedly connected through the adhesive block 6.

The implementation principle of the transformer for the street lamp power supply in the embodiment of the application is as follows: the transformer for street lamp power supply is soldered to the circuit board through the pin 142, and the pin 142 connected to the primary coil 2 is connected to the input terminal, and the pin 142 connected to the secondary coil 3 is connected to the output terminal. When the transformer for a street lamp power supply is operated, a current flows in from the primary coil 2, and a transformed current flows out from the secondary coil 3. The cover ring piece 43 and the ring portion 122 are abutted against the primary coil 2 and the secondary coil 3, thereby insulating the primary coil 2 and the secondary coil 3, and the provision of the insulating tape 7 also insulates the primary coil 2 and the secondary coil 3.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a transformer for street lamp power which characterized in that: including coil skeleton (1), be provided with primary coil (2) and secondary coil (3) on coil skeleton (1), the both ends of coil skeleton (1) are provided with insulating sheath (4), are located insulating sheath (4) pressfitting respectively at coil skeleton (1) both ends primary coil (2) and secondary coil (3), wear to be equipped with the magnetic core in coil skeleton (1), wear to establish hole (421) on insulating sheath (4), the magnetic core is worn to establish in hole (421), be provided with a plurality of pins (142) on coil skeleton (1), primary coil (2) and secondary coil (3) are connected in different pins (142) electricity respectively.

2. The transformer for a street lamp power supply according to claim 1, characterized in that: coil skeleton (1) is including skeleton main part (11), set up joint ring (12) at skeleton main part (11) middle part, set up spacing ring (13), fixed connection mount pad (14) on spacing ring (13) at skeleton main part (11) both ends, the both ends of primary coil (2) are contradicted with spacing ring (13) and joint ring (12) respectively, the both ends of secondary coil (3) are contradicted with spacing ring (13) and joint ring (12) respectively, insulating sheath (4) and mount pad (14) fixed connection and lid close on spacing ring (13), pin (142) and mount pad (14) fixed connection, the magnetic core is worn to establish in skeleton main part (11).

3. The transformer for street lamp power supply according to claim 2, characterized in that: clamping ring (12) include base portion (121) and fixed connection on skeleton main part (11) and ring portion (122) that fixed connection just encircles base portion (121) on base portion (121), primary coil (2) and secondary coil (3) are located the both sides of base portion (121) and all contradict with ring portion (122).

4. The transformer for street lamp power supply according to claim 2, characterized in that: the mounting seat (14) is fixedly connected with a reinforcing rib (141), and the reinforcing rib (141) is fixedly connected with the limiting ring (13).

5. The transformer for street lamp power supply according to claim 2, characterized in that: insulating sheath (4) include installation piece (41), the cover of fixed connection piece (42), fixed connection on connection piece (41) on installation base (14) that insulating sheath (4) are including closing ring piece (43) at connection piece (42), fixed connection on connection piece (42), wear to establish hole (421) and set up on connection piece (42), connection piece (42) are contradicted with spacing ring (13), are located skeleton main part (11) both ends cover and close ring piece (43) and contradict with primary coil (2) and secondary coil (3) respectively.

6. The transformer for street lamp power supply according to claim 5, characterized in that: the both ends fixedly connected with of installation piece (41) extend piece (411), it is close to extend piece (411) skeleton main part (11).

7. The transformer for street lamp power supply according to claim 5, characterized in that: install between piece (41) and mount pad (14) through connecting piece (44) fixed connection, connecting piece (44) include joint lug (441) of fixed connection on installation piece (41) and set up joint recess (442) on mount pad (14), joint lug (441) are inlayed and are established in joint recess (442).

8. The transformer for a street lamp power supply according to claim 1, characterized in that: and the primary coil (2) and the secondary coil (3) are coated with insulating adhesive tapes (7).