CN217847659U

CN217847659U - Clamping combined transformer

Info

Publication number: CN217847659U
Application number: CN202222260493.5U
Authority: CN
Inventors: 曾源; 龚怡铭; 潘晓; 莊同荣
Original assignee: Quanzhou Hengtaisheng Intelligent Technology Co ltd
Current assignee: Quanzhou Hengtaisheng Intelligent Technology Co ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2022-11-18
Anticipated expiration: 2032-08-26

Abstract

The utility model relates to a joint combination formula transformer, including skeleton and magnetic core, skeleton lateral wall interval arrangement has a plurality of baffle, form the wire winding groove between two adjacent baffles, be 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, the opening part of secondary copper sheet is equipped with the pin that is used for the plug-in circuit board, still include the buckle in the insulating casing of transformer one side, insulating casing is half box of L type, half box of L type is by the bottom plate, the front bezel, left side board and right side board integrated into one piece, the left side board is equipped with the joint convex part, the right side board is equipped with the joint concave part. When the combination is used, the transformer can be combined together with any two transformers quickly and accurately through the matching of the clamping convex parts and the clamping concave parts on the two sides of the insulating shell, and the transformer combined in the clamping mode is fixed in structure, so that when the plugboard is used, the secondary copper sheet of the transformer can be accurately inserted into the preset position of the circuit board, and the plugboard cannot be askew.

Description

Clamping combined transformer

Technical Field

The utility model relates to a transformer technical field, more specifically say and indicate a joint combination formula transformer.

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 skeleton that is the tube-shape and assemble the magnetic core at both ends about the skeleton, the skeleton is encircleed from top to bottom 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 loop configuration, the opening part of secondary copper sheet is equipped with the pin of buckling and accepts the pin, and secondary copper sheet in two adjacent slots docks each other through buckling the pin and accepting the pin respectively.

Transformers of the type described above are often used on high power boards and in order to accommodate higher power requirements, a plurality of transformers are often used side by side. When the transformer is assembled, the pins of the secondary copper sheet are directly inserted on the PCB after the two transformers are wound together by using adhesive tapes, and the primary winding is connected to other PCBs by flying wires. The above-mentioned mounting method has several problems: firstly, when two transformers are wound, secondary copper sheet pins are not positioned, if the transformers are wound to be inclined, the secondary copper sheet pins of the two transformers are easy to be inclined, and cannot be correspondingly inserted into a PCB (printed circuit board), or the transformers are not firmly placed after being inserted into the PCB; secondly, because the secondary copper sheet pin of the transformer has a bent part, the secondary copper sheet pin is directly inserted into the PCB, the safety regulation of the contact end of the copper sheet is not good, and particularly the bent part of the copper sheet pin is easy to contact the PCB to cause potential safety hazards; and thirdly, the flying wire of the primary winding of the transformer is not hung, and the flying wire flies out of the transformer and is inserted into the PCB, so that the flying wire of the PCB flies in a mess manner and the circuit is mixed, and meanwhile, the transformer is complex to install and low in board mounting efficiency.

Disclosure of Invention

Based on the problem, the utility model provides a joint combination formula transformer to when solving current a plurality of transformer aggregate erection, secondary copper sheet pin is crooked more easily, and the transformer dress board is not steady, and the flying wire does not have to be hung and leans on, and 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 joint combination formula transformer, 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, still includes the buckle in the insulating casing of transformer one side, insulating casing is half box of L type, and half box of L type is by bottom plate, front bezel, left side board and right side board integrated into one piece, the lateral wall of left side board is equipped with the joint convex part, the lateral wall of right side board be equipped with joint convex part matched with joint concave part.

Further, the joint convex part is the bar sand grip, the joint concave part is the bar groove, the bar sand grip with the bar groove cooperatees.

Furthermore, two ends of the framework are respectively provided with a substrate, the upper side and the lower side of the substrate are respectively provided with a clamping groove part, two ends of the front plate of the insulating shell are respectively provided with a clamping part matched with the clamping groove parts, and the two clamping parts of the front plate are respectively buckled with the clamping groove parts on the upper side or the lower side of the two substrates.

Furthermore, a plurality of pins are arranged on the bottom plate of the insulating shell at intervals, and a plurality of lead through grooves are formed in the front plate of the insulating shell.

Furthermore, a bottom plate of the insulating shell is provided with a plurality of supporting convex columns.

Furthermore, the pin inserting device further comprises a connecting plate, and a plurality of positioning holes used for being inserted by the pins are formed in the connecting plate.

Furthermore, the left side of connecting plate is equipped with the connection fixture block, and the right side of connecting plate is equipped with connection card portion.

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.

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 transformer can singly use, also can a plurality of combinations use, and during the combination use, the transformer passes through the cooperation of the joint convex part and the joint concave part of insulating casing both sides, can be fast accurately with two arbitrary transformers combined together to because the transformer of joint combination, its fixed structure, when making the picture peg, the position is predetermine to the inserted circuit board that the secondary copper sheet of transformer can be accurate, can not insert askewly.

2. The utility model discloses the area of contact of transformer and circuit board can also be increased to the connecting plate for the transformer is put more steadily, and simultaneously, but the connecting plate separation secondary copper sheet pin department of buckling and the contact of circuit board prevent the short circuit, guarantee ann rule.

3. The utility model discloses insulating casing design stitch and lead wire lead to the groove, and after primary winding's coil wire winding, the fly line accessible lead wire of winding leads to the groove after the circuit detours, and the winding spot welding is 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 more neatly clean and tidy.

Drawings

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

Fig. 2 is a schematic structural view of another angle of the present invention.

Fig. 3 is an exploded view of the present invention.

Fig. 4 is a schematic view of the structure of the insulating housing of the present invention.

Fig. 5 is an exploded view of the transformer of the present invention.

Wherein the reference numbers in the figures are: the transformer comprises a transformer 1, a framework 10, a base plate 11, a clamping groove portion 12, a baffle 20, a left baffle 21, a middle baffle 22, a right baffle 23, a slot 24, a ladder groove 25, an avoidance notch 26, a winding groove 30, a secondary copper sheet 40, a bent pin 41, a bearing pin 42, an insulating shell 50, a bottom plate 501, a front plate 502, a left side plate 503, a right side plate 504, a clamping portion 51, a pin 52, a lead through groove 53, a propping convex column 54, a strip convex strip 55, a strip groove 56, a magnetic core 60, a connecting plate 70, a positioning hole 71, a connecting clamping block 72 and a connecting clamping groove 73.

Detailed Description

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

Referring to fig. 1, 3 and 5, a clamping combined transformer 1 includes a bobbin 10 having a cylindrical shape, a magnetic core 60 mounted at left and right ends of the bobbin 10, an insulating case 50, and a connection plate 70. The 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. 5, the baffle 20 includes left and

right side baffles

21 and 23 respectively disposed at both ends of the framework 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 slots 24 of the intermediate baffle 22 are inserted into two secondary copper sheets 40, and the bodies of the two secondary copper sheets 40 are isolated from each other by an insulating film (not shown).

Referring to fig. 1 and 3, a connecting board 70 is assembled on one side of the secondary copper sheet 40 of the transformer 1, and a plurality of positioning holes 71 for inserting the pins of the secondary copper sheet 40 are formed on the connecting board 70. The left side of the connecting plate 70 is provided with a connecting block 72, and the right side of the connecting plate 70 is provided with a connecting slot 73 matched with the connecting block 72

Referring to fig. 1 to 4, the insulating housing 50 is fastened to one side of the transformer 1, and the insulating housing 50 is an L-shaped half box integrally formed by a bottom plate 501, a front plate 502, a left side plate 503 and a right side plate 504. The lateral wall of left side board 503 is equipped with the joint convex part, and the lateral wall of right side board 504 is equipped with the joint concave part with joint convex part matched with, and in this embodiment, the joint convex part is preferred bar sand grip 55, and the joint concave part is preferred bar recess 56, and bar sand grip 55 cooperatees with bar recess 56.

Referring to fig. 1 to 4, two ends of the frame 10 are respectively provided with a substrate 11, and in this embodiment, the two substrates 11 are respectively correspondingly provided on the left side baffle 21 and the right side baffle 23. The upper and lower sides of the substrate 11 are respectively provided with a slot 12, the two ends of the front plate 502 of the insulating housing 50 are respectively provided with a locking part 51 matched with the slot 12, and the two locking parts 51 of the front plate 502 are respectively locked on the slot 12 on the upper sides of the two substrates 11 or locked on the slot 12 on the lower sides of the two substrates 11. The front plate 502 of the insulating housing 50 is provided with a plurality of lead through slots 53, and the bottom plate 501 of the insulating housing 50 is provided with a plurality of pins 52 and a plurality of supporting studs 54 for supporting the circuit board at intervals. The utility model discloses after primary winding's coil wire winding, the fly line accessible lead wire of winding leads to groove 53 after the detour, and the winding spot is welded on stitch 52, and on rethread stitch 52 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 more concise clean and tidy.

Referring to fig. 1 to 5, the transformer 1 of the present invention may be used singly or in combination. Taking the two transformers 1 to be used in combination as an example, when the transformer is assembled, the insulating shell 50 is buckled on any one side of the two sides of the transformer 1 through the matching of the buckling part 51 and the clamping groove part 12; the two transformers 1 are matched with the strip-shaped raised strips 55 and the strip-shaped grooves 56 of the insulating shell 50, and the two transformers 1 are combined together in parallel; the two connecting plates 70 are matched with the connecting clamping grooves 73 through the connecting clamping blocks 72, and are arranged on the pins of the secondary copper sheet 40 in a penetrating manner after being clamped together. When the board is installed, the secondary copper sheet 40 of the present invention is inserted into one circuit board, and the pins 52 are inserted into the other circuit board. During board plugging, the insulation shell 50 is clamped and fixed, and the connection board 70 is matched with the positioning hole 71 in positioning effect, so that all pins of the secondary copper sheets 40 can be accurately inserted into the preset positions of the circuit board; secondly, the connecting plate 70 between the bent parts of the circuit board and the secondary copper sheet 40 can prevent the bent parts from touching the circuit board, prevent short circuit and ensure safety; finally, after the secondary copper sheet 40 is inserted into the circuit board, the connection board 70 can also increase the contact area between the transformer and the circuit board, so as to achieve the effect of stable placement.

The aforesaid is only the embodiment of the present invention, but the design concept of the present invention is not limited to this, and it is right to utilize this concept the present invention to perform insubstantial modification, and all belong to infringement the protection scope of the present invention.

Claims

1. The utility model provides a joint combination formula transformer, 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: still include the buckle in the insulating casing of transformer one side, insulating casing is half box of L type, and half box of L type is by bottom plate, front bezel, left side board and right side board integrated into one piece, the lateral wall of left side board is equipped with the joint convex part, the lateral wall of right side board be equipped with joint convex part matched with joint concave part.

2. A snap-in combination transformer as claimed in claim 1, wherein: the joint convex part is the bar sand grip, the joint concave part is the bar groove, the bar sand grip with the bar groove cooperatees.

3. A snap-in combination transformer as claimed in claim 1, wherein: the two ends of the framework are respectively provided with a base plate, the upper side and the lower side of the base plate are respectively provided with a clamping groove part, the two ends of the front plate of the insulating shell are respectively provided with a clamping part matched with the clamping groove parts, and the two clamping parts of the front plate are respectively buckled with the clamping groove parts on the upper side or the lower side of the two base plates.

4. A snap-in combination transformer as claimed in claim 1, wherein: a plurality of pins are arranged on the bottom plate of the insulating shell at intervals, and a plurality of lead through grooves are formed in the front plate of the insulating shell.

5. The clamp combination transformer of claim 1, wherein: the bottom plate of the insulating shell is provided with a plurality of propping convex columns.

6. A snap-in combination transformer as claimed in claim 1, wherein: the secondary copper sheet positioning structure further comprises a connecting plate, and a plurality of positioning holes for the pins of the secondary copper sheet to be inserted into are formed in the connecting plate.

7. The card combination transformer of claim 6, wherein: the left side of connecting plate is equipped with the connection fixture block, and the right side of connecting plate is equipped with connecting slot.

8. A snap-in combination transformer as claimed in 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 mutually butted through the bent pins and the bearing pins respectively.

9. A snap-in combination transformer as claimed in claim 8, wherein: the bent pins are bent upwards or downwards in an L shape.

10. A snap-in combination transformer as claimed in claim 1, wherein: and an avoidance notch for crossing the lead of the primary winding is arranged on the baffle.