CN217955645U

CN217955645U - Transformer stable and flexible to install

Info

Publication number: CN217955645U
Application number: CN202222232080.6U
Authority: CN
Inventors: 曾源; 曾钰锭; 吴声鸿; 莊同荣
Original assignee: Quanzhou Hengtaisheng Intelligent Technology Co ltd
Current assignee: Quanzhou Hengtaisheng Intelligent Technology Co ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2022-12-02
Anticipated expiration: 2032-08-24

Abstract

The utility model relates to a nimble transformer is stabilized in installation, including skeleton and magnetic core, skeleton lateral wall interval arrangement has a plurality of baffle, forms the wire winding groove between two adjacent baffles, is equipped with the slot that is used for placing secondary copper sheet in every baffle, and secondary copper sheet is for taking open-ended loop configuration, and the opening part of secondary copper sheet is equipped with the pin that is used for the plug-in circuit board, and at least one end is equipped with insulating casing in the skeleton both ends, and insulating casing is the L type and wraps up in the outside of skeleton and magnetic core, and L type insulating casing's bottom is equipped with the breach portion that is used for the pin to pass. The utility model discloses a half package forms of L type, can assemble at the one end or the both ends of transformer wantonly, the assembly is nimble, material saving cost, and during the demand dress board of the various different circuit boards of adaptable customer, and secondary copper sheet installs on the circuit board, and insulating casing's bottom can increase the contact surface of transformer and circuit board for the transformer can be put more level, more steady.

Description

Transformer stable and flexible to install

Technical Field

The utility model relates to a transformer technical field, the more specifically transformer that indicates a stable flexibility of installation that says so.

Background

The transformer is a device for changing alternating voltage by using the principle of electromagnetic induction, and is widely applied to various circuit boards. The transformer mainly comprises a framework, a primary winding, a secondary winding and a magnetic core, wherein the primary winding, the secondary winding and the magnetic core are formed by winding coils on the framework, but some transformers are assembled by adopting a plurality of copper sheets and a plurality of coils in sequence on the market, for example, the Chinese utility model patent with the publication number of CN215496336U provided by the applicant: the utility model provides a can improve transformer of primary and secondary degree of coupling, is including the magnetic core that is the skeleton of transformer of tube-shape and assembles both ends about the skeleton of transformer, the skeleton of transformer from top to bottom encircles and is provided with a plurality of baffle, forms the wire winding groove that is used for twining primary winding between two adjacent baffles, is equipped with the slot that is used for inserting secondary copper sheet in every baffle, secondary copper sheet is and takes open-ended annular structure, the opening part of secondary copper sheet is equipped with the pin of buckling and accepts the pin, and the secondary copper sheet in two adjacent slots docks each other through buckling the pin and accepting the pin respectively.

When the transformer of the utility model is assembled on a PCB, the transformer has the following problems: firstly, the transformer is easy to be placed unevenly and unstably by inserting the copper sheet of the transformer into the PCB, and the safety distance of the contact end of the copper sheet is difficult to control; and secondly, the flying wire of the transformer coil is not hung, in order to ensure the safety of the flying wire, the flying wire can only fly out of the transformer and is inserted into the PCB, so that the flying wire of the PCB flies disorderly and the circuit is disordered, and meanwhile, the transformer is complex to mount and the board mounting efficiency is low.

Disclosure of Invention

Based on the problem, the utility model provides a nimble transformer is stabilized in installation to solve the transformer dress board of current many copper sheets multicoil winding and put not level, put the unstability, the flying wire does not have to be affiliated to, the board way is chaotic, the loaded down with trivial details inefficiency scheduling problem of dress board.

The utility model adopts the following technical scheme:

the utility model provides a nimble transformer is stabilized in installation, is including the skeleton that is the tube-shape and assemble in the magnetic core at skeleton both ends, skeleton lateral wall interval arrangement has a plurality of baffle, forms the wire winding groove that is used for twining primary winding between two adjacent baffles, is equipped with the slot that is used for placing secondary copper sheet in every baffle, secondary copper sheet is for taking open-ended loop configuration, and the opening part of secondary copper sheet is equipped with the pin that is used for inserting circuit board, at least one end is equipped with insulating casing in the skeleton both ends, insulating casing be L type wrap up in the outside of skeleton and magnetic core, L type insulating casing's bottom is equipped with and is used for the breach portion that the pin passed.

Furthermore, the two ends of the framework are respectively provided with the insulating shells, and the two insulating shells are symmetrically arranged along the central line of the framework.

Furthermore, a clamping part is arranged at the top of the side wall of the insulating shell, and a clamping groove matched with the clamping part is correspondingly arranged at one end or two ends of the framework.

Furthermore, a plurality of positioning protrusions are arranged on the inner side wall of the bottom of the insulating shell, and a plurality of positioning grooves matched with the positioning protrusions are formed in the framework.

Furthermore, the side wall of the insulating shell is provided with a plurality of pin bases, and pins are arranged in the pin bases.

Furthermore, the side wall of the insulating shell is also provided with a lead seat, the pin seat and the lead seat are arranged in parallel at intervals, and a lead through groove is formed in the side wall of the insulating shell.

Furthermore, the pins of the secondary copper sheets comprise bent pins and receiving pins, and the secondary copper sheets in the two adjacent slots are butted with each other through the bent pins and the receiving pins respectively.

Further, the bending pins are bent upwards or downwards in an L shape.

Furthermore, an avoiding notch for crossing the lead of the primary winding is arranged on the baffle.

As can be seen from the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:

1. the utility model discloses the half package form of L type that insulating casing adopted, can assemble the one end or both ends at the transformer wantonly, the assembly is nimble, the material saving cost, the demand of the various different circuit boards of adaptable customer, and, because the existence of insulating casing bottom plate, when the secondary copper sheet of transformer is installed on the circuit board, insulating casing's bottom plate can increase the contact surface of transformer and circuit board, make the transformer can be put more level, more steady, the thickness of insulating casing bottom is fixed simultaneously, can guarantee that the interval of secondary copper sheet and circuit board is fixed when steadily placing, play insulating and guarantee the effect of ann rule.

2. The utility model discloses after primary winding's coil wire winding, the fly line of winding can detour behind the lead wire logical groove that forms between lead wire seat and stitch seat, and the winding spot is welded on the stitch, and on rethread stitch disect insertion circuit board, the fly line of avoiding the transformer when the dress board flies in disorder for the circuit of circuit board is terse clean and tidy more.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is an exploded view of the embodiment of the present invention.

Fig. 3 is a schematic diagram of a skeleton and a magnetic core structure according to an embodiment of the present invention.

Fig. 4 is an exploded view of an insulation housing according to an embodiment of the present invention.

Fig. 5 is a top view of an insulating housing and a frame according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of the second embodiment of the present invention.

Wherein the reference numbers in the figures are: the structure comprises a framework 10, a clamping groove 11, a positioning groove 12, a baffle 20, a left baffle 21, a middle baffle 22, a right baffle 23, a slot 24, a ladder groove 25, an avoiding notch 26, a winding groove 30, a secondary copper sheet 40, a bent pin 41, a receiving pin 42, an insulating shell 50, a bottom plate 501, a side plate 502, a front plate 503, a rear plate 504, a notch part 51, a buckling part 52, a positioning protrusion 53, a pin base 54, a pin 55, a lead base 56, a lead through groove 57, a first wire clamping through groove 58, a cover plate block 59, a second wire clamping through groove 590, a mounting groove 591 and a magnetic core 60.

Detailed Description

The following describes specific embodiments of the present invention with reference to the drawings.

Example one

Referring to fig. 1, 2, 3 and 5, a transformer with stable and flexible installation includes a bobbin 10 having a cylindrical shape, a magnetic core 60 mounted at left and right ends of the bobbin 10, and an insulating housing 50. The transformer framework 10 is provided with a plurality of baffles 20 at intervals from left to right, a winding slot 30 for winding the primary winding is formed between two adjacent baffles 20, and an avoiding notch 26 for leading out a lead of the primary winding or crossing the winding slot 30 is arranged on the outer side wall of each baffle 20. Each baffle 20 has a slot 24 for inserting a secondary copper sheet 40. The secondary copper sheet 40 is in an annular structure with an opening, the opening of the secondary copper sheet 40 is provided with pins, the pins comprise a bending pin 41 and a receiving pin 42, the bending pin 41 is bent upwards or downwards in an L shape, and the secondary copper sheets 40 in the two adjacent slots 24 are butted with each other through the bending pin 41 and the receiving pin 42 respectively.

More specifically, referring to fig. 3, the baffle 20 includes left and

right baffles

21 and 23 respectively disposed at both ends of the bobbin 10 and at least one intermediate baffle 22, and the present embodiment is preferably one intermediate baffle 22. The side of the slot of the left baffle 21 and the right baffle 23 facing the magnetic core 60 is hollowed out to form a ladder groove 25 for placing the secondary copper sheet 40. The design mode can reduce the side wall of the baffle 20 facing to one side of the magnetic core 60, further reduce the volume of the transformer and is beneficial to the miniaturization of the transformer. The slot 24 of the middle baffle 22 is inserted into two secondary copper sheets 40, and the bodies of the two secondary copper sheets 40 are isolated by an insulating film (not shown).

Referring to fig. 1, 4 and 5, the insulating housing 50 is disposed at any one of the left and right ends of the frame 10, or the insulating housing 50 is disposed at both the left and right ends, and the insulating housing 50 is L-shaped and wraps the frame 10 and the magnetic core 60. In this embodiment, the insulating housing 50 is preferably disposed at one end of the framework 10, the insulating housing 50 is an L-shaped half box, the L-shaped half box is integrally formed by a bottom plate 501, a side plate 502, a front plate 503 and a rear plate 504, and the bottom plate 501 is provided with a notch 51 for the pin of the transformer secondary copper sheet 40 to pass through. The top of the side plate 502 of the insulating housing 50 is provided with a buckling part 52 for being clamped in the transformer framework 10, and the inner side wall of the bottom plate 501 of the insulating housing 50 is provided with a positioning protrusion 53 for being clamped in the transformer framework 10. The left end and the right end of the top of the transformer framework 10 are provided with clamping grooves 11 matched with the clamping parts 52, and the bottom of the transformer framework 10 is provided with a plurality of positioning grooves 12 matched with the positioning protrusions 53. The insulating housing 50 is fastened to the slot 11 and the positioning groove 12 of the framework 10 by the fastening part 52 and the positioning protrusion 53, respectively, so as to complete the installation of the insulating housing 50.

Referring to fig. 1, 4 and 5, any side wall of the insulating housing 50 may be provided with a first wire clamping through slot 58 for winding flying wires, and in this embodiment, the first wire clamping through slot 58 is preferably provided on the outer side walls of the front plate 503 and the rear plate 504 of the insulating housing 50, and a cover plate block 59 is detachably provided on the first wire clamping through slot 58. More specifically, the first wire-clamping through groove 58 is formed by arranging two L-shaped bumps in parallel and at intervals, the L-bending directions of the two L-shaped bumps are set back to back, and one surface of the cover block 59 facing the first wire-clamping through groove 58 is provided with a mounting groove 591 for clamping the L-shaped bump. The notch both sides of mounting groove 591 are L type bayonet socket respectively, and the L direction of buckling of two L type bayonet sockets is for setting up in opposite directions, L type bayonet socket and L type lug cooperation joint. The cover plate block 59 is matched with the L-shaped convex block through the mounting groove 591, and can be conveniently disassembled and assembled on the first wire clamping through groove 58. The cover plate 59 is further provided with a second wire-clamping through groove 590 on the surface facing away from the first wire-clamping through groove 58. The outer side wall of the side plate 502 of the insulating shell 50 is provided with a plurality of pin bases 54 and lead bases 56, pins 55 are arranged in the pin bases 54, the pin bases 54 and the lead bases 56 are arranged in parallel at intervals, and lead through grooves 57 are formed in the side wall of the insulating shell 50.

Referring to fig. 1 to 5, when the insulating case 50 of the present invention is mounted, the insulating case 50 is fastened to the bobbin 10 and the magnetic core 60, and the pins of the secondary copper sheet 40 of the transformer pass through the notches 51 of the insulating case 50. The utility model adopts the L-shaped half-pack form, which can be assembled at one end or both ends of the transformer arbitrarily, has flexible assembly, saves material cost, and can meet the requirements of various different circuit boards of customers, for example, when the transformer is assembled at the edge of the circuit board or the primary winding of the transformer only needs one end to be fed and discharged, a single insulating shell 50 can be selected to be assembled at one end of the transformer; for another example, when a transformer is mounted in the middle of a circuit board or a primary winding of the transformer needs to have wires fed and pulled from two ends, two insulating housings 50 can be selected to be mounted on two ends of the transformer respectively. Moreover, due to the existence of the bottom plate 501 of the insulating shell 50, when the secondary copper sheet 40 of the transformer is installed on the circuit board, the bottom plate 501 of the insulating shell 50 can increase the contact surface between the transformer and the circuit board, so that the transformer can be placed more flatly and stably, and meanwhile, the thickness of the bottom of the insulating shell 50 is fixed, so that the distance between the secondary copper sheet 40 and the circuit board can be ensured to be fixed when the transformer is placed stably, and the effects of insulation and safety regulation are achieved.

In addition, referring to fig. 1 to 5, because insulating casing 50 is equipped with lead wire through groove 57 and first card line through groove 58 and second card line through groove 590, make the utility model discloses after primary winding's coil wire winding, the fly line of winding can adopt multiple different modes to walk the line and dress board according to customer's various demands. For example, after the flying wire of the winding can go around the lead through groove 57 formed between the lead seat 56 and the pin seat 54, the winding is spot-welded on the pin 55, and then the winding is directly inserted into the circuit board through the pin 55, so that the flying wire of the transformer is prevented from flying in disorder when the transformer is mounted on the circuit board, and the circuit of the circuit board is simpler and cleaner. For another example, the flying leads of the winding may be routed along the side walls of the front plate 503 or the rear plate 504 of the insulating housing 50, the flying leads are inserted and fixed by the cover plate block 59 after passing through the first wire-clamping through slot 58, and then the flying leads are spot-welded on the circuit board, after spot-welding is completed, whether the cover plate block 59 is left on the insulating housing 50 or not may be selected according to the customer requirements or the circuit design of the circuit board. The cover plate block 59 is left, so that the flying of the flying line can be avoided, and the circuit of the circuit board is simple and tidy; the cover plate block 59 is taken out, and the cover plate block 59 is used as a plate mounting auxiliary part of the transformer and can be reused, so that the cost is saved. In addition, the surface of the cover plate block 59, which faces away from the first wire clamping through groove 58, is provided with a second wire clamping through groove 590, so that a customer can select to detour flying wires on the second wire clamping through groove 590 according to the safety requirements of different transformers.

Example two

Referring to fig. 6, the structure of this embodiment is substantially the same as that of the embodiment, and is not described herein, but the difference is at least: the number of the insulating shells 50 is two, and the two insulating shells 50 are symmetrically buckled at the left end and the right end of the framework 10 along the center line of the framework 10.

The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.

Claims

1. The utility model provides a nimble transformer is stabilized in installation, is including the skeleton that is the tube-shape and assemble in the magnetic core at skeleton both ends, skeleton lateral wall interval arrangement has a plurality of baffle, forms the wire winding groove that is used for twining primary winding between two adjacent baffles, is equipped with the slot that is used for placing secondary copper sheet in every baffle, secondary copper sheet is for taking open-ended loop configuration, and the opening part of secondary copper sheet is equipped with the pin that is used for inserting circuit board, its characterized in that: at least one end is equipped with insulating casing in the skeleton both ends, insulating casing be the L type wrap up in the outside of skeleton and magnetic core, the bottom of L type insulating casing is equipped with and is used for the breach portion that the pin passed.

2. The transformer of claim 1, wherein: the two ends of the framework are respectively provided with the insulating shells, and the two insulating shells are symmetrically arranged along the central line of the framework.

3. A transformer according to any one of claims 1 or 2, wherein: the top of the side wall of the insulating shell is provided with a clamping part, and one end or two ends of the framework are correspondingly provided with clamping grooves matched with the clamping part.

4. The transformer of claim 1, wherein: the bottom inside wall of insulating casing is equipped with a plurality of location arch, be equipped with on the skeleton a plurality of with protruding matched with positioning groove in location.

5. The transformer of claim 1, wherein: the side wall of the insulating shell is provided with a plurality of pin bases, and pins are arranged in the pin bases.

6. The transformer of claim 5, wherein: the side wall of the insulating shell is also provided with a lead seat, the pin seat and the lead seat are arranged in parallel at intervals, and a lead through groove is formed in the side wall of the insulating shell.

7. The transformer of claim 1, wherein: the pins of the secondary copper sheets comprise bent pins and bearing pins, and the secondary copper sheets in the two adjacent slots are butted with each other through the bent pins and the bearing pins respectively.

8. The transformer of claim 7, wherein: the bent pin is bent upwards or downwards in an L shape.

9. The transformer of claim 1, wherein: and the baffle is provided with an avoiding notch for crossing the lead of the primary winding.