CN113192749A

CN113192749A - Coil winding method and transformer with same

Info

Publication number: CN113192749A
Application number: CN202110634069.XA
Authority: CN
Inventors: 陈�峰; 李培; 郭强
Original assignee: Endela Electronics Shenzhen Co ltd
Current assignee: Endela Electronics Shenzhen Co ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-07-30

Abstract

The application relates to a coil winding method and a transformer with the coil, relating to the field of distribution transformers and solving the problem that the lead-out of a wire end can occupy the winding space, and the method comprises the following steps: the method comprises the following steps: taking a lead to fold in half from the middle part to form a bifilar wire; step two: the double-folded ends of the bifilar yarns are fixed on the outer wall of the magnetic core, the bifilar yarns are wound outside the magnetic core, winding is carried out from inside to outside when winding is carried out, an inner layer is wound firstly, and then an outer layer is wound in sequence, so that the bifilar yarns on the outer side are arranged on the outer wall on the inner side; step three: and after the winding is finished, two wire ends of the lead are left outside the coil for connecting pins. The transformer has the advantages that the first coil and the second coil are arranged in a folding and winding method, the space utilization rate is high, the magnetic flux of the coils is improved, and the performance of the transformer is improved.

Description

Coil winding method and transformer with same

Technical Field

The present disclosure relates to the field of transformers, and in particular, to a method for winding a coil and a transformer having the same.

Background

A transformer is a transformer which converts a voltage and a current of one level into a voltage and a current of another level of the same frequency and transmits electric energy between two or more coils by using the principle of electromagnetic induction, and generally comprises an iron core (or a magnetic core) and a coil, wherein the coil has two or more windings, wherein the winding connected with a power supply is called a primary coil, and the other windings are called secondary coils, and can transform alternating voltage, current and impedance.

The winding method of the coil of the conventional transformer is to wind one end of the lead 1 from the middle of the iron core 2, and after one turn of winding, one end of the lead is connected with one pin 31 on the transformer, and the other end of the lead 1 is led out from the gap of the wound lead 1 and connected with the other pin 31 (as shown in fig. 1).

In view of the above-mentioned related art, the inventors found that the following drawbacks exist: the other end of the lead 1 needs to be led out from the gap of the wound lead 1, which not only occupies the winding space, but also influences the magnetic flux of the coil.

Disclosure of Invention

In order to avoid the wire ends from being led out to occupy the winding space, the application provides a coil winding method and a transformer with the coil.

In a first aspect, the present application provides a coil winding method, which adopts the following technical scheme:

a coil winding method, comprising the steps of:

the method comprises the following steps: taking a lead to fold in half from the middle part to form a bifilar wire;

step two: the double-folded ends of the bifilar yarns are fixed on the outer wall of the magnetic core, the bifilar yarns are wound outside the magnetic core, winding is carried out from inside to outside when winding is carried out, an inner layer is wound firstly, and then an outer layer is wound in sequence, so that the bifilar yarns on the outer side are arranged on the outer wall on the inner side;

step three: and after the winding is finished, two wire ends of the lead are left outside the coil for connecting pins.

Optionally, a gap is formed between the twin-wire yarns in the step one, and glue is applied to the inner wall of the gap to bond the inner walls of the twin-wire yarns.

Through adopting above-mentioned technical scheme, carry out the rubber coating in the clearance of twin line to can make the twin line compactness that the wire fifty percent discount formed better, it is more firm to wind on locating the magnetic core.

In a second aspect, the present application provides a transformer, which adopts the following technical solution:

a transformer comprises a base and a plurality of groups of pins arranged on one side of the base for conducting current, wherein a first inductor and a second inductor are arranged on the base, a gap for preventing mutual interference is reserved between the first inductor and the second inductor,

the first inductor comprises a first magnetic core and a first coil arranged on the first magnetic core;

the second inductor comprises a second magnetic core and a second coil arranged on the second magnetic core;

the first coil and the second coil are both arranged by the coil winding method of claim 1, and a plurality of groups of the pins are electrically connected with the first coil and the second coil.

By adopting the technical scheme, the first coil and the second coil are arranged by a method of folding and winding, so that the space utilization rate is higher, the magnetic flux of the coils is improved, and the performance of the transformer is improved.

Optionally, all be provided with the multiunit copper sheet on first inductance and the second inductance, the copper sheet spiral twine in the outside of first inductance and second inductance, the multiunit one side of copper sheet is provided with the conduction subassembly that is used for conduction current, and is two sets of adjacent be provided with the insulating piece between the copper sheet, the multiunit the copper sheet is followed the length direction equidistance of first magnetic core or second magnetic core is laid and with first magnetic core or second magnetic core are on same axis.

Through adopting above-mentioned technical scheme, form the coil and can produce electric current through setting up the copper sheet, and set up the insulating piece between the adjacent copper sheet, prevent mutual interference between the copper sheet, cause the influence to producing electric current, carry out the conduction current through the conduction subassembly, the electric current that can bear is bigger, and heat dispersion is better simultaneously, improves the stability in use of transformer.

Optionally, the conducting assembly includes a connecting member and a plurality of sets of conducting members, the connecting member is electrically connected to one end of the copper sheet, and the plurality of sets of conducting members are electrically connected to the other end of the copper sheet respectively.

Through adopting above-mentioned technical scheme, connecting piece and conduction piece are connected with the both ends of copper sheet respectively to form a current loop, and realize through a connecting piece that a plurality of conduction pieces carry out output current to the inside input current of copper sheet, the setting up of a plurality of outputs makes the transformer practicality better.

Optionally, a plurality of groups of insertion pieces are arranged on one sides of the connecting piece and the plurality of groups of conducting pieces close to the copper sheets, and the plurality of groups of insertion pieces are parallel to each other and are electrically connected with the end parts of the copper sheets.

By adopting the technical scheme, the connection piece is connected with the end part of the copper sheet, so that the connection between the connecting piece and the copper sheet, the connection between the conducting piece and the copper sheet are better, and the conducting current is more stable.

Optionally, the one end of conduction piece is the form of buckling, fixedly connected with connecting block on the base, offer on the connecting block and be used for the confession the perforation that the conduction piece wore to establish, just fenestrate inner wall with the outer wall laminating of conduction piece.

Through adopting above-mentioned technical scheme, the perforation setting is worn to establish by the conduction piece, and the outer wall laminating of fenestrate inner wall and conduction piece fixes the one end of conducting piece, and the other end of conduction piece passes through the inserted sheet to be fixed with the copper sheet to improve the installation stability of conduction piece, make the effect in the conduction piece access circuit better.

Optionally, the first inductor and the second inductor are provided with mounting frames outside, the base is provided with a groove for embedding and mounting the mounting frames, and the two mounting frames have upper surfaces on the same horizontal plane.

Through adopting above-mentioned technical scheme, the outside of first inductance and second inductance all sets up the installing frame to play the protection effect to first inductance and second inductance, and the installing frame can imbed the inside of installing to the recess, be convenient for install first inductance and second inductance to the base on.

Optionally, the mounting frame includes two half frames that are the U-shaped, two be provided with the multiunit lock pin between the half frame, the multiunit equal perpendicular to two outer wall settings of half frame of lock pin and with one the tip fixed connection of half frame, another the tip of half frame seted up the multiunit with the slot of lock pin looks adaptation.

Through adopting above-mentioned technical scheme, make the lock pin on half frame insert in the slot on another half frame to can make two half frames dock fast and accurately, improve the installation effectiveness of first inductance and second inductance.

Optionally, two the fixed slot has all been seted up on the outer wall of half frame, the inside removable fixed frame that is provided with of fixed slot, fixed frame is the U-shaped, the outer wall of fixed frame with the outer wall of half frame is on the coplanar, the open end of fixed frame extends the inside of recess.

Through adopting above-mentioned technical scheme, fixed frame inserts in the fixed slot to can be fixed two half frames, make two half frames can not take place to drop, it is more stable when installing in the recess on the base.

In summary, the present application includes at least the following advantageous technical effects:

1. the first coil and the second coil in the first inductor and the second inductor on the transformer are arranged by adopting a folding and winding method, so that the space utilization rate is higher, the magnetic flux of the coils is improved, and the performance of the transformer is further improved;

2. the copper sheets are arranged outside the magnetic core, the coil formed by the copper sheets can generate current, the insulating sheets are arranged between the adjacent copper sheets, mutual interference among the copper sheets is prevented, and the current generation is prevented from being influenced;

3. the outside of first inductance and second inductance all sets up the installing frame to play the protection effect to first inductance and second inductance, and the installing frame can imbed the inside of installing to the recess, be convenient for install first inductance and second inductance to the base on, and the installing frame includes two releasable connection's half frames, is convenient for ann tears open first inductance and second inductance.

Drawings

Fig. 1 is a front view of a conventional coil.

Fig. 2 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 3 is a rear view structure diagram of an embodiment of the present application.

Fig. 4 is a schematic front view structure diagram of a copper sheet according to an embodiment of the present application.

Fig. 5 is a schematic top view of an embodiment of the present application.

Fig. 6 is a schematic diagram showing the structure of the ferrule and the socket according to the embodiment of the present application.

Reference numerals: 1. a wire; 2. an iron core; 3. a base; 31. a pin; 32. connecting blocks; 321. perforating; 33. a groove; 4. a first inductor; 41. a first magnetic core; 42. a first coil; 5. a second inductor; 51. a second magnetic core; 52. a second coil; 6. a copper sheet; 7. an insulating sheet; 8. a conductive component; 81. a connecting member; 811. a plug-in sheet; 82. a conductive member; 9. installing a frame; 91. half frame; 911. inserting a core; 912. a slot; 913. fixing grooves; 914. a fixing frame is provided.

Detailed Description

The present application is described in further detail below with reference to figures 2-6.

The embodiment of the application discloses a coil winding method, which comprises the following steps:

the method comprises the following steps: taking a lead 1 to fold in half from the middle part to form a bifilar wire;

step three: after winding, the two ends of the wire 1 are left outside the coil for connecting the pins 31.

And forming a gap between the twin-wire in the step one, coating glue on the inner wall of the gap, and bonding the inner walls of the twin-wire, so that the twin-wire formed by folding the lead 1 is more tightly connected and is more tightly wound on the magnetic core.

The embodiment of the application also discloses a transformer. Referring to fig. 2, the transformer includes a base 3 and a first inductor 4 and a second inductor 5 detachably connected to the base 3, a mounting frame 9 is detachably connected to the outside of the first inductor 4 and the second inductor 5, and the first inductor 4 and the second inductor 5 are mounted on the base 3 through the mounting frame 9.

Referring to fig. 2 and 3, in order to make the space utilization ratio of the first inductor 4 and the second inductor 5 higher and improve the magnetic flux of the coils, a gap for preventing mutual interference is left between the first inductor 4 and the second inductor 5, the first inductor 4 includes a first magnetic core 41 and a first coil 42 disposed on the first magnetic core 41, the second inductor 5 includes a second magnetic core 51 and a second coil 52 disposed on the second magnetic core 51, the first coil 42 and the second coil 52 are both disposed by a method of winding in half, and the number of turns of the first coil 42 and the second coil 52 is increased.

Referring to fig. 3 and 4, a plurality of groups of copper sheets 6 are fixedly mounted on each of the first inductor 4 and the second inductor 5, the plurality of groups of copper sheets 6 are equidistantly arranged along the length direction of the first magnetic core 41 or the second magnetic core 51 and are on the same axis with the first magnetic core 41 or the second magnetic core 51, the copper sheets 6 are spirally wound outside the first inductor 4 and the second inductor 5, current is generated in the coils of the first inductor 4 and the second inductor 5, and then current is generated in the coils, an insulating sheet 7 is disposed between two adjacent groups of copper sheets 6, the insulating sheet 7 prevents mutual interference between the copper sheets 6 and influences on the current generated in the copper sheets 6, a conducting assembly 8 for conducting current is electrically connected to one side of the plurality of groups of copper sheets 6, the conducting assembly 8 comprises a connecting member 81 and a plurality of conducting members 82, a plurality of groups of inserting sheets 811 are disposed on one side of the connecting member 81 and one side of the conducting members 82 close to the copper sheets 6, the multiple groups of the inserting pieces 811 are parallel to each other and electrically connected with the end parts of the copper sheets 6, the connecting piece 81 is electrically connected with one ends of the multiple groups of the copper sheets 6 through the inserting pieces 811, the conducting piece 82 is electrically connected with the other ends of the multiple groups of the copper sheets 6 through the inserting pieces 811, current is conducted through the connecting piece 81 and the conducting piece 82, the connecting piece 81 and the conducting piece 82 are metal blocks, the current capable of being borne is larger, meanwhile, the contact surface with air is larger, the heat dissipation performance is better, and the stability of the transformer is improved; for the installation stability that improves conduction subassembly 8, the one end of conduction piece 82 is the form of buckling, fixedly connected with connecting block 32 on the base 3, offer on the connecting block 32 to be used for supplying the perforation 321 that conduction piece 82 wore to establish, perforation 321 is worn to establish by the tip of conduction piece 82, and the outer wall of conduction piece 82 and the inner wall laminating of perforation 321.

Referring to fig. 5 and 6, in order to facilitate the installation of the first inductor 4 and the second inductor 5 on the base 3, the first inductor 4 and the second inductor 5 are externally provided with an installation frame 9, the installation frame 9 includes two U-shaped half frames 91 which are butted to each other, the two half frames 91 are butted to clamp and fix the first inductor 4 or the second inductor 5, wherein one half frame 91 is fixedly connected with a plurality of groups of ferrules 911, the plurality of groups of ferrules 911 are arranged perpendicular to the outer walls of the two half frames 91, the end of the other half frame 91 is provided with a plurality of groups of slots 912 which are matched with the ferrules 911, so that the ferrules 911 are inserted into the slots 912, thereby enabling the two half frames 91 to be butted quickly and accurately, improving the installation efficiency of the first inductor 4 and the second inductor 5, the base 3 is provided with a groove 33 for embedding and installing the installation frame 9, and the upper surfaces of the two installation frames 9 are on the same horizontal plane, the mounting frame 9 can be embedded and mounted in the groove 33, so that the first inductor 4 and the second inductor 5 can be conveniently mounted, and the upper surfaces of the two mounting frames 9 are ensured to be on the same horizontal plane, so that the integrity of the transformer is better, in order to prevent the two half frames 91 from falling off, fixing grooves 913 are arranged on the outer walls of the two half frames 91, a fixing frame 914 is detachably arranged inside the fixing grooves 913, the fixing frame 914 is U-shaped, the outer wall of the fixing frame 914 and the outer wall of the half frame 91 are on the same plane, and the inner wall of the fixing frame 914 is adhered to the inner wall of the fixing groove 913, the opening end of the fixing frame 914 extends to the inside of the groove 33, the fixing frame 914 is glued to the connection portion of the groove 33, so that the fixing can be realized, in order to electrify the first coil 42 and the second coil 52, the pin 31 is fixedly connected to one side of the base 3, and the first coil 42 and the second coil 52 are electrically connected to the pin 31.

The implementation principle of the transformer in the embodiment of the application is as follows: when the transformer is used, the pin 31 is connected into a circuit, current is generated in the first coil 42 and the second coil 52, the first coil 42 and the second coil 52 are respectively wound outside the first magnetic core 41 and the second magnetic core 51, current is generated in the copper sheet 6 according to current induction, one end of the copper sheet 6 is connected through the connecting piece 81, and the multiple groups of conducting pieces 82 are connected with the other end of the copper sheet 6, so that a passage is formed, and the voltage is changed.

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. A coil winding method is characterized in that: the method comprises the following steps:

the method comprises the following steps: a lead (1) is folded in half from the middle part to form a twin wire;

step three: after winding, two ends of the lead (1) are left outside the coil for connecting the pins (31).

2. The coil winding method as claimed in claim 1, wherein: and forming a gap between the twin-wire yarns in the step one, and gluing on the inner wall of the gap to bond the inner walls of the twin-wire yarns.

3. A transformer, includes base (3) and multiunit set up in base (3) one side and be used for pin (31) of conduction current, its characterized in that: a first inductor (4) and a second inductor (5) are arranged on the base (3), a gap for preventing mutual interference is reserved between the first inductor (4) and the second inductor (5),

the first inductor (4) comprises a first magnetic core (41) and a first coil (42) arranged on the first magnetic core (41);

the second inductor (5) comprises a second magnetic core (51) and a second coil (52) arranged on the second magnetic core (51);

the first coil (42) and the second coil (52) are arranged by adopting the coil winding method in claim 1, and a plurality of groups of pins (31) are electrically connected with the first coil (42) and the second coil (52).

4. The transformer of claim 3, wherein: all be provided with multiunit copper sheet (6) on first inductance (4) and second inductance (5), copper sheet (6) spiral winding in the outside of first inductance (4) and second inductance (5), multiunit one side of copper sheet (6) is provided with conduction subassembly (8) that are used for conduction current, and is two sets of adjacent be provided with insulating piece (7) between copper sheet (6), multiunit copper sheet (6) are followed the length direction equidistance of first magnetic core (41) or second magnetic core (51) is laid and with first magnetic core (41) or second magnetic core (51) are on same axis.

5. The transformer of claim 4, wherein: the conducting assembly (8) comprises a connecting piece (81) and a plurality of groups of conducting pieces (82), the connecting piece (81) is electrically connected with one end of the copper sheet (6), and the plurality of groups of conducting pieces (82) are respectively electrically connected with the other end of the copper sheet (6).

6. The transformer of claim 5, wherein: and a plurality of groups of inserting pieces (811) are arranged on one sides of the connecting piece (81) and the plurality of groups of conducting pieces (82) close to the copper sheet (6), and the plurality of groups of inserting pieces (811) are parallel to each other and are electrically connected with the end part of the copper sheet (6).

7. The transformer of claim 5, wherein: the one end of conduction piece (82) is the form of buckling, fixedly connected with connecting block (32) on base (3), offer on connecting block (32) and be used for the confession perforation (321) that conduction piece (82) wore to establish, just the inner wall of perforation (321) with the outer wall laminating of conduction piece (82).

8. The transformer of claim 3, wherein: the first inductor (4) and the outside of second inductor (5) all are provided with installing frame (9), offer on base (3) and be used for the embedding installation recess (33) of installing frame (9), and two the upper surface of installing frame (9) is on same horizontal plane.

9. The transformer of claim 8, wherein: installing frame (9) are half frame (91) of U-shaped including two, the magnetic core perpendicular to is two the inner wall of half frame (91), two be provided with multiunit lock pin (911) between half frame (91), multiunit the outer wall setting of two half frames (91) of equal perpendicular to of lock pin (911) and with one the end fixed connection of half frame (91), another the tip of half frame (91) seted up the multiunit with slot (912) of lock pin (911) looks adaptation.

10. The transformer of claim 9, wherein: two fixed slot (913) have all been seted up on the outer wall of half frame (91), the removable fixed frame (914) that is provided with in inside of fixed slot (913), fixed frame (914) is the U-shaped, the outer wall of fixed frame (914) with the outer wall of half frame (91) is on the coplanar, the open end of fixed frame (914) extends to the inside of recess (33).