CN117809953A

CN117809953A - Transformer framework and manufacturing process thereof

Info

Publication number: CN117809953A
Application number: CN202410189143.5A
Authority: CN
Inventors: 李龙; 朱俊高; 周孝亮; 汶兵录; 范勇; 李少科
Original assignee: Shenzhen Lifud Technology Co ltd
Current assignee: Shenzhen Lifud Technology Co ltd
Priority date: 2024-02-20
Filing date: 2024-02-20
Publication date: 2024-04-02

Abstract

The invention relates to the technical field of transformers, in particular to a transformer framework and a manufacturing process thereof. In the transformer framework, the structures such as the lead grooves, the wire hanging protrusions and the like are arranged on the base body, so that the tin climbing distance of the lead wires after soldering tin is effectively increased, the creepage distance and the electric gap are prevented from being reduced, and the lead wires can be ensured to conform to the safety regulations without sleeving the sleeve pipes.

Description

Transformer framework and manufacturing process thereof

Technical Field

The invention relates to the technical field of transformers, in particular to a transformer framework and a manufacturing process thereof.

Background

The isolation transformer has strict requirements on safety, enough creepage distance and electric gap are required to be ensured according to the working voltage, and the intersection of the primary and secondary outgoing lines is required to be physically isolated. The traditional skeleton design mode of the transformer is simpler, because the windings mostly adopt secondary (or primary) three-layer insulated wires, after the lead wires of the contact pins are soldered, the creepage distance and the electric gap are reduced due to the fact that the creepage distance and the electric gap are reduced, and the transformer does not meet the safety requirements. Therefore, the lead wires are usually led through the sleeve or the safety tape, and the sleeve occupies the window size of the magnetic core, but the size of the transformer is increased, the winding difficulty is increased, the efficiency is low, the production cost is high, and a transformer framework with a new structure which accords with safety regulations and can automatically wind is needed.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a transformer framework and a manufacturing process thereof, and effectively solves the problems in the background art.

The invention relates to a transformer framework, which adopts the following technical scheme:

a transformer skeleton, including wire winding portion, wire winding portion middle part is equipped with the perforation that runs through that is used for connecting on the transformer magnetic core, and upper baffle is connected at wire winding portion top, and the lower baffle is connected to wire winding portion bottom, connecting seat body on the lower baffle is equipped with wire guiding groove, hanging wire arch and contact pin on the pedestal.

Further, the base body comprises a primary side base body and a secondary side base body, and the primary side base body and the secondary side base body are oppositely connected to two sides of the lower baffle plate; the length of the secondary side seat body is longer than that of the primary side seat body.

Further, the lead grooves include a primary side lead groove and a secondary side lead groove, the primary side lead groove is disposed on the primary side seat, and the secondary side lead groove is disposed on the secondary side seat.

Further, the pins comprise a primary side pin and a secondary side pin; six primary side pins are arranged on the primary side seat body side by side, and a primary side wire guiding groove is arranged between two adjacent primary side pins; four secondary side contact pins are arranged on the secondary side seat body side by side, and a secondary side wire guiding groove is arranged between two adjacent secondary side contact pins.

Further, the hanging wire protrusion comprises a primary side protrusion arranged on the primary side seat body and a secondary side protrusion arranged on the secondary side seat body; the primary side bulge is positioned between the primary side contact pin and the magnetic core of the transformer; the secondary side bulge comprises a long bulge baffle and a short bulge baffle, and the long bulge baffle is positioned between the secondary side contact pin and the magnetic core of the transformer; the short protruding baffle is positioned between the long protruding baffle and the secondary side contact pin; and a secondary side outgoing line wiring groove is formed between the long protruding baffle and the short protruding baffle.

Further, the positions of the primary side protrusions, which are opposite to the second primary side contact pin and the fifth primary side contact pin, are respectively provided with a magnetic core grounding wire wiring groove.

Further, the short protruding baffles are arranged in four, and the four short protruding baffles are arranged in one-to-one opposite to the four secondary side contact pins.

Further, four wire clamping grooves are formed in the outer end of the secondary side base body, and the four wire clamping grooves are oppositely arranged on the outer sides of the four secondary side contact pins; four guide grooves are formed in one side face of the secondary side contact pin, away from the secondary side base, and the four guide grooves are arranged in one-to-one opposite to the four lead clamping grooves.

Further, a wire penetrating slot is formed in the middle of the secondary side seat body for the secondary side outgoing wire to penetrate and wind, and an outgoing wire tensioning component is arranged in the wire penetrating slot; the outgoing line tensioning component comprises a wiring frame arranged in the wiring trough, the upper side of one end of the wiring frame, which is close to the winding part, is connected with the leading-in wheel, the middle part of the wiring frame is connected with the first tensioning wheel, one end of the wiring frame, which is far away from the winding part, is connected with the second tensioning wheel, and the lower side of one end of the wiring frame, which is close to the winding part, is connected with the turning wheel; the first tensioning wheel and the second tensioning wheel are connected through a tensioning connecting rod; the wiring frame is connected with a jacking part, and the jacking part is connected with the first tensioning wheel so as to carry out jacking limiting on the secondary side outgoing line led into the wheel wire groove under the transmission control of the first tensioning wheel.

The invention relates to a manufacturing process of a transformer framework, which adopts the following technical scheme:

the manufacturing process of the transformer framework is suitable for any one of the transformer frameworks, and comprises the following steps of:

the winding part is obtained through injection molding of a winding part injection mold;

the upper baffle is obtained through injection molding of an upper baffle injection mold;

injection molding is carried out on the lower baffle and the seat body through an injection mold to obtain an integrally formed lower baffle and seat body;

fixedly connecting two ends of the winding part with the upper baffle plate and the lower baffle plate respectively;

and assembling the contact pin on the base body.

Compared with the traditional transformer framework, the transformer framework has the advantages that the structures such as the lead grooves and the hanging wire protrusions are arranged on the base body, the tin climbing distance after the lead wires are soldered is effectively increased, the creepage distance and the electric gap are prevented from being reduced, the lead wires can be ensured to conform to safety regulations without sleeving the sleeve, the transformer framework is simple in structure and convenient to use, automatic operation of transformer winding can be completely realized through changing the framework structure, and production and machining efficiency is greatly improved.

The manufacturing process of the transformer framework is simple to operate, can be completed on automatic equipment, and greatly improves the manufacturing efficiency of the transformer framework.

In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:

fig. 1 is a schematic diagram of a first view angle of a transformer framework according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a second view angle of a transformer framework according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a third view angle of a transformer framework according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a fourth view angle of a transformer framework according to an embodiment of the present invention;

FIG. 5 is a schematic view of a first view of a pinout tension member provided in an embodiment of the present invention;

FIG. 6 is a schematic diagram of a second view of a pinout tension member provided in an embodiment of the present invention;

FIG. 7 is a schematic diagram of a third view of a pinout tension member provided in an embodiment of the present invention;

FIG. 8 is a schematic diagram of an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a first tensioning wheel according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a second tensioning wheel according to an embodiment of the present invention;

fig. 11 is a schematic structural view of a steering wheel according to an embodiment of the present invention;

FIG. 12 is a schematic view of a tensioning link according to an embodiment of the present invention;

fig. 13 is a schematic structural view of a pressing portion according to an embodiment of the present invention.

Detailed Description

In order to make the technical solutions of the embodiments of the present invention more clearly and completely described below with reference to the drawings in the embodiments of the present invention, it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

Example 1

Referring to fig. 1-4, the present invention provides a first scheme of a transformer framework, including a winding portion 1, wherein a through hole for connecting with a transformer core is provided in the middle of the winding portion 1, the top of the winding portion 1 is connected with an upper baffle 2, the bottom of the winding portion 1 is connected with a lower baffle 3, the lower baffle 3 is connected with a base, and a wire guiding slot, a wire hanging protrusion and a contact pin are provided on the base.

According to the transformer framework disclosed by the invention, the middle part of the winding part 1 is provided with the penetrating holes for connecting the transformer magnetic core, so that the transformer framework is convenient to connect with the transformer magnetic core, the base body connected with the lower baffle plate 3 is provided with the wire guiding grooves and the wire hanging protrusions, and the wire guiding grooves and the wire hanging protrusions provide a special wire routing and wiring channel for arranging and organizing each wire, so that the wires can be more conveniently guided and connected in series, and the possibility of confusion and cross wiring is reduced; in addition, the structure such as the lead groove, the hanging wire bulge and the like is arranged on the base body, so that the tin climbing distance of the lead wire after soldering tin is effectively increased, the creepage distance and the electric gap are prevented from being reduced, and the lead wire can ensure that the transformer meets safety regulations without installing a sleeve; in addition, the lead wire grooves and the lead wire hanging protrusions can separate the lead wires from other parts, so that the lead wires are arranged more orderly, the risks of mutual interference and damage are reduced, the failure rate of equipment is reduced, the reliability and stability of the equipment are improved, and maintenance and overhaul work is more efficient.

The seat body comprises a primary side seat body 4 and a secondary side seat body 5, and the primary side seat body 4 and the secondary side seat body 5 are oppositely connected to two sides of the lower baffle plate 3; the length of the secondary side seat 5 is longer than that of the primary side seat 4. The length of the secondary side seat body 5 is longer than that of the primary side seat body 4, so that the secondary side seat body 5 is convenient to adapt to the size and arrangement of secondary side windings, and can provide more space and accommodate more windings due to the fact that the secondary side seat body 5 is longer, so that the secondary side seat body is very beneficial to the application requiring larger winding quantity or higher current capacity, and the more windings can increase parameters such as inductance, resistance and the like, so that the design requirement of a system is met; in addition, increasing the length of the secondary side housing 5 may also provide a larger surface area, thereby enhancing the heat dissipation effect, and in high load or high power applications, the secondary side may generate more heat, so by increasing the length of the secondary side housing 5, the heat dissipation surface area may be increased, the heat dissipation efficiency may be improved, and stable operation and long life of the device may be ensured.

The lead grooves comprise a primary side lead groove 6 and a secondary side lead groove 7, wherein the primary side lead groove 6 is arranged on the primary side seat 4 and used for arrangement of primary side leads, and the secondary side lead groove 7 is arranged on the secondary side seat 5 and used for arrangement of secondary side leads.

The pins comprise a primary side pin 8 and a secondary side pin 9; six primary side pins 8 are arranged on the primary side seat body 4 side by side, and a primary side lead groove 6 is arranged between two adjacent primary side pins 8; four secondary side contact pins 9 are arranged on the secondary side seat body 5 side by side, and a secondary side wire guiding groove 7 is arranged between two adjacent secondary side contact pins 9. The primary side lead groove 6 and the secondary side lead groove 7 are arranged, so that connection and layout of winding leads are facilitated, and the leads can be orderly arranged and connected to the pins; the primary side lead groove 6 and the secondary side lead groove 7 can also provide mechanical support and protection for the leads; the winding lead wire can be prevented from being damaged due to excessive stretching, bending or collision with other components in the connecting process, and can also help to isolate the lead wires and prevent short circuit or interference between adjacent lead wires.

The hanging wire protrusion comprises a primary side protrusion 10 arranged on the primary side seat body 4 and a secondary side protrusion arranged on the secondary side seat body 5; the primary side bulge 10 is positioned between the primary side pin 8 and the magnetic core of the transformer; the primary side protrusion 10 may form a certain gap between the primary side pin 8 and the magnetic core, thereby providing an electrical insulation function; the primary side bulge 10 can prevent the primary side contact pin 8 from directly contacting the magnetic core, and avoid electrical short circuit and insulation breakdown; the secondary side bulge comprises a long bulge baffle 11 and a short bulge baffle 12, and the long bulge baffle 11 is positioned between the secondary side contact pin 9 and the magnetic core of the transformer; the short protruding baffle 12 is located between the long protruding baffle 11 and the secondary side pin 9; secondary side outgoing line wiring grooves are formed between the long protruding baffle plates 11 and the short protruding baffle plates 12. The setting of long protruding baffle 11 and short protruding baffle 12 effectively increases the climbing tin distance behind the lead-out wire soldering tin, prevents that creepage distance and electric gap from reducing, and forms secondary side lead-out wire wiring groove between long protruding baffle 11 and the short protruding baffle 12, and the secondary side lead-out wire of being convenient for wears to wind the winding.

The positions of the primary side protrusions 10, which are opposite to the second primary side pins 8 and the fifth primary side pins 8, are respectively provided with a magnetic core grounding wire wiring groove, so that the arrangement of magnetic core grounding wires is facilitated.

The short protruding baffles 12 are provided with four, the four short protruding baffles 12 are arranged opposite to the four secondary side contact pins 9 one by one, the partition effect of the short protruding baffles 12 on the secondary side contact pins 9 and the magnetic core of the transformer is effectively improved, and the outgoing line can be ensured to meet the safety regulations without sleeving a sleeve.

Four lead clamping grooves 13 are formed in the outer end of the secondary side seat body 5, and the four lead clamping grooves 13 are oppositely arranged on the outer sides of the four secondary side contact pins 9; four guide grooves are formed in one side face of the secondary side plug pin 9, away from the secondary side base body 5, and the four guide grooves are arranged in one-to-one opposite to the four lead clamping grooves 13. Through the arrangement of the four wire clamping grooves 13 and the four guide grooves, the wiring regularity of the wires is improved.

Example two

Referring to fig. 5-13, on the basis of the first embodiment, the present invention provides a second solution of a transformer framework, wherein a wire penetrating slot 14 is formed in the middle of the secondary side seat 5 for the secondary side wire to be penetrated and wound, and a wire tensioning component 15 is installed in the wire penetrating slot 14; the outgoing line tensioning component 15 comprises a wiring frame 16 arranged in the wiring trough 14, wherein the upper side of one end of the wiring frame 16 close to the winding part 1 is connected with a leading-in wheel 17, the middle part of the wiring frame 16 is connected with a first tensioning wheel 18, one end of the wiring frame 16 far away from the winding part 1 is connected with a second tensioning wheel 19, and the lower side of one end of the wiring frame 16 close to the winding part 1 is connected with a turning wheel 20; the first tensioning wheel 18 and the second tensioning wheel 19 are connected through a tensioning connecting rod 21; the chute 16 is connected with a jacking part 22, and the jacking part 22 is connected with the first tensioning wheel 18 so as to carry out jacking limiting on the secondary side outgoing line in the wire groove of the lead-in wheel 17 under the transmission control of the first tensioning wheel 18.

The two ends of the chute 16 are respectively connected with a rotary rod in a rotary way, the middle part of the rotary rod is fixedly provided with a guiding-out ring, the middle part of the guiding-out ring is provided with a guiding-out opening with a round angle, and the two guiding-out rings are positioned on the outer sides of the two turning wheels 20.

In the transformer framework of the invention, the middle of the secondary side seat body 5 is provided with the threading slot 14 for threading the secondary side lead wires, the threading slot 14 is used for threading the lead wires on two sides of the secondary side seat body 5, as the distance between the two lead wires in the middle of the secondary side seat body 5 and the two secondary side pins 9 in the middle of the secondary side seat body 5 is shorter, the two lead wires in the middle of the secondary side seat body 5 and the two secondary side pins 9 in the middle can be in relatively straight connection, and the two lead wires positioned on two side parts of the secondary side seat body 5, because the distance between the two outgoing lines on the side and the two secondary side pins 9 on the two sides of the secondary side seat 5 is longer, the outgoing lines need to be wound, and in order to enable the four outgoing lines to be arranged more orderly, the outgoing lines on the two sides of the secondary side seat 5 need to pass through the winding slot 14 first and then wind on the secondary side seat 5, and finally are led out to be connected with the two secondary side pins 9 on the two sides of the secondary side seat 5 on the side of the secondary side seat 5, and in the winding process, or in the using process, the outgoing lines on the two sides of the secondary side seat 5 easily have the problem of loose winding, and the loose winding of the outgoing lines can cause the following various problems: 1. when the lead wires are not tightly wound, the part of the winding can be loosened and vibrate, and the lead wires can be loosened, broken or worn and the like; 2. the distribution of the magnetic flux in the windings is uneven or leakage flux is generated in winding. Therefore, it is important to improve the tightness of the winding of the lead wires on both sides of the secondary side housing 5; in order to realize the second scheme of the transformer framework, an outgoing line tensioning component 15 is arranged in a winding wire penetrating slot 14, and the outgoing line tensioning component 15 is used for tensioning and guiding two outgoing lines on two sides of a secondary side seat body 5; when the guide wheel is used, two outgoing lines pass through the lower end of the guide wheel 17, the two outgoing lines are positioned between the guide wheel 17 and the jacking part 22, the two outgoing lines are limited to a certain extent through the jacking part 22, the two outgoing lines are prevented from being separated from the guide wheel 17, after passing through the lower end of the guide wheel 17, the two outgoing lines pass through the upper part of the first tensioning wheel 18 and the upper part of the second tensioning wheel 19 in sequence, then the two outgoing lines are led out from the lower part of the second tensioning wheel 19 and respectively matched with the two diversion wheels 20 at two sides of the chute 16 one by one, finally the led out two outgoing lines are respectively led out through the two leading-out rings, wound on the secondary side seat body 5, guided through the matching of the two lead clamping grooves 13 and the two guide grooves at two sides of the outer end of the secondary side seat body 5, and finally connected with the two secondary side contact pins 9 at two sides of the secondary side seat body 5; the first tensioning wheel 18 and the second tensioning wheel 19 are connected through the tensioning connecting rod 21, multiple tensioning adjustment functions are achieved through cooperation of the first tensioning wheel 18, the second tensioning wheel 19 and the tensioning connecting rod 21, and the jacking portion 22 is connected with the first tensioning wheel 18 so as to conduct jacking limiting on a secondary outgoing line led into a wire groove of the wheel 17 under transmission control of the first tensioning wheel 18.

The leading-in wheel 17 is rotatably connected to the chute 16 through a wheel shaft, and two wire grooves are formed in the leading-in wheel 17 so as to guide and convey the secondary outgoing wires on two sides of the secondary side seat body 5 through the two wire grooves, so that the two secondary outgoing wires on two sides are tensioned through the outgoing wire tensioning component 15 and then wound in the two lead wire clamping grooves 13 on two sides of the secondary side seat body 5.

The first tensioning wheel 18 comprises a first wheel body 23, the axis of the first wheel body 23 is parallel to the axis of the guiding wheel 17, two first wheel grooves are formed in the first wheel body 23, and the two first wheel grooves are arranged in one-to-one opposite to the two wire grooves; the first wheel body 23 is fixed in the middle of the first wheel shaft 24, the first wheel shaft 24 slides in the upper and lower slide ways of the side plates at the two sides of the chute 16, the two ends of the first wheel shaft 24 are rotationally connected with the first pressing plates 25, and the two first pressing plates 25 relatively slide on the outer side surfaces of the side plates at the two sides of the chute 16; a plurality of longitudinal sliding holes are formed in each first pressing plate 25, the first pressing columns 26 are connected in the longitudinal sliding holes in a sliding mode, an inserting hole is formed in each first pressing column 26, a plurality of inserting rods 27 are connected to the first pressing plates 25 in a threaded mode, and the inserting rods 27 are inserted into the inserting holes of the first pressing columns 26; a sliding pressing sleeve 28 is fixed at the lower end of each first pressing column 26, a fixed column 29 is in sliding fit in a longitudinal slideway at the bottom of the sliding pressing sleeve 28, the fixed column 29 is fixed on the chute 16, and a first pressure spring 30 is fixed between the top of the fixed column 29 and the inner top surface of the sliding pressing sleeve 28; the first slider fixed on the fixed column 29 slides in the first limit chute of the sliding press sleeve 28.

The first wheel 23 is provided with two first wheel grooves for guiding the two outgoing lines respectively, when the outgoing lines are installed and tensioned, the outgoing lines press the first wheel 23 to move downwards, the first wheel 23 drives the first wheel shafts 24 to slide downwards in the upper and lower slide ways of the side plates on the two sides of the chute 16, at this time, the first wheel shafts 24 drive the two first pressing plates 25 to slide downwards on the outer side surfaces of the side plates on the two sides of the chute 16 and drive the first pressing plates 26 connected with the first wheel shafts to move downwards, the first pressing plates 26 can drive the sliding pressing sleeves 28 at the lower ends of the first pressing plates to move downwards when moving downwards, so that the first pressing plates 30 are compressed by controlling the sliding pressing sleeves 28 to slide downwards on the fixed columns 29, the tensioning buffering effect is achieved through the first pressing springs 30, and the tensioning force can be adjusted according to actual needs, the adjustment operation is very convenient, the rotation of the inserting rods 27 enables the first pressing plates 26 to be separated from the inserting holes, the first pressing plates 25 can not be connected with the first pressing plates 25, the first pressing plates 26 can not be driven to move downwards when moving downwards, the first pressing plates 26 can not be adjusted, and the best tensioning effect can not be adjusted, and the first compression effect can not be achieved when the tensioning effect is ensured, and the first compression effect can not be adjusted. The loose lead wires are prevented from being connected with each other in an unstable manner, and the poor contact of the lead wires can be prevented, so that the lead wires are prevented from being stressed too much, damaged or broken due to too tight lead wires.

The jacking part 22 comprises a jacking sliding frame 31, two ends of the jacking sliding frame 31 are in sliding fit in lifting slide ways of side plates at two sides of the chute 16, two jacking blocks 32 are fixed in the middle of the jacking sliding frame 31, and the two jacking blocks 32 can be jacked in two wire grooves of the guide wheel 17; both the pressing blocks 32 are made of elastic rubber; the jacking sliding frame 31 is fixed at one end of a transmission connecting rod 33, and the other end of the transmission connecting rod 33 is rotatably connected to the first wheel shaft 24; when the first wheel axle 24 slides upwards in the upper and lower slideways of the side plates at the two sides of the chute 16, the two pressing blocks 32 are driven to be pressed on the two secondary side outgoing lines in the wire grooves of the lead-in wheel 17 by the cooperation of the transmission connecting rod 33 and the pressing sliding frame 31.

After the outgoing line is tensioned and regulated through the first tensioning wheel 18, the size of a wiring opening formed between the two pressing blocks 32 and the two wire grooves of the leading-in wheel 17 is larger, the pressing blocks 32 slightly clamp the outgoing line, but do not affect the extension of the outgoing line, when the extended outgoing line suddenly breaks, the pressure generated by the outgoing line on the first tensioning wheel 18 suddenly disappears, at the moment, the first wheel shaft 24 in the first tensioning wheel 18 resets under the elastic force of the first pressure spring 30, thereby upwards sliding in the upper and lower slide ways of the side plates on the two sides of the wiring frame 16, at the moment, the first wheel shaft 24 can drive one end of the transmission connecting rod 33 to upwards move, the other end of the transmission connecting rod 33 drives the pressing sliding frame 31 to upwards slide, the pressing sliding frame 31 drives the two pressing blocks 32 to press the outgoing line in the two wire grooves, and as the two pressing blocks 32 are made of elastic rubber, the two pressing blocks 32 can tightly press the outgoing line when the first wheel shaft 24 resets, the outgoing line is prevented from loosening to affect the winding tightness of the winding part 1, and the winding stability of the winding part 1 is convenient to keep.

The second tensioning wheel 19 comprises a second wheel body 34, the axis of the second wheel body 34 is parallel to the axis of the guiding wheel 17, two second wheel grooves are formed in the second wheel body 34, and the two second wheel grooves are opposite to the two first wheel grooves one by one; the second wheel body 34 is fixed in the middle of the second wheel shaft 35, the second wheel shaft 35 slides in the front and rear slide ways of the side plates at the two sides of the chute 16, the two ends of the second wheel shaft 35 are respectively and rotatably connected with side sliding plates 36, and the two side sliding plates 36 relatively slide on the outer side surfaces of the side plates at the two sides of the chute 16; each side slide 36 is connected to a spring seat 38 on the side plate of the chute 16 by an extension spring 37, and the second wheel 34 is located between the spring seat 38 and the first wheel 23.

The second wheel 34 is provided with two second wheel grooves for guiding the outgoing lines by matching with the two first wheel grooves, and after the outgoing lines are wound in the second wheel grooves of the second wheel 34, pressure is generated on the second wheel 34, so that the second wheel 34 drives the second wheel shaft 35 to move towards the winding part 1 in the front and rear slideways of the side plates on the two sides of the chute 16, and drives the tension springs 37 between the two side sliding plates 36 and the two spring seats 38 to stretch, the tension is carried out in the front and rear directions through the second tension wheel 19, and the tension is carried out in the up and down directions through the first tension wheel 18, thereby being beneficial to improving the tension effect in multiple directions and ensuring the winding stability of the outgoing lines.

The tensioning connecting rod 21 comprises a first rod body 39 rotatably connected to the first wheel shaft 24, a second rod body 40 is slidably matched in a telescopic slide way of the first rod body 39, a second pressure spring 41 is fixed between the second rod body 40 and the inner side surface of the telescopic slide way, the second rod body 40 is rotatably connected to the second wheel shaft 35, and a poking block on the second rod body 40 slides in a groove-shaped slide way on the side part of the first rod body 39.

The whole length of tensioning connecting rod 21 can be along with the relative motion of second take-up pulley 19 and first take-up pulley 18 and automatically regulated, when second take-up pulley 19 and first take-up pulley 18 relative motion, can drive second body of rod 40 one end and slide in the flexible slide of first body of rod 39, and compress or stretch second pressure spring 41, at this moment, further play tensioning regulation's effect through second pressure spring 41, and when first take-up pulley 18 moves down, accessible tensioning connecting rod 21 produces thrust to second take-up pulley 19, at this moment, the preferential cooperation through first take-up pulley 18 and the inside second pressure spring 41 of tensioning connecting rod 21 carries out tensioning regulation, when the tensioning range of needs is bigger, further increase second take-up pulley 19, improve tensioning dynamics.

The turning wheel 20 comprises a third wheel body 42, a third wheel groove is arranged on the outer wheel surface of the third wheel body 42, the third wheel body 42 is sleeved on a third wheel shaft 43, the upper end and the lower end of the third wheel shaft 43 are both rotationally connected to the chute 16, the outer wheel surface of the third wheel shaft 43 is uniformly and fixedly surrounded by the inner ends of a plurality of bending spring pieces 44, and the outer ends of the bending spring pieces 44 are uniformly and fixedly surrounded by the inner side surface of the central hole of the third wheel body 42; the axis of the third wheel shaft 43 is disposed perpendicular to the axis of the second wheel shaft 35. The outer wheel surface of the third wheel body 42 is provided with a third wheel groove for guiding the outgoing line on one side in a variable way, the third wheel shaft 43 is connected with the third wheel body 42 through a plurality of bending spring pieces 44, the third wheel shaft 43 and the third wheel body 42 can move relatively, the actual orientation of the third wheel body 42 can be adjusted in a self-adaptive way, and the tensioning of the outgoing line on the side can be further adjusted through the bending spring pieces 44 in each direction-changing wheel 20, so that the tensioning amplitude of the two outgoing lines can be further adjusted according to actual needs.

Example III

The invention provides a manufacturing process of a transformer framework, which is suitable for manufacturing the transformer framework, and comprises the following steps:

injection molding the winding part 1 through an injection mold to obtain a winding part 1;

the upper baffle plate 2 is obtained through injection molding of an injection mold of the upper baffle plate 2;

the lower baffle plate 3 and the seat body are integrally formed through injection molding of a lower baffle plate and a seat body injection mold;

fixedly connecting two ends of the winding part 1 with an upper baffle plate 2 and a lower baffle plate 3 respectively;

and assembling the contact pin on the base body.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims

1. The utility model provides a transformer skeleton, its characterized in that, including wire winding portion (1), wire winding portion (1) middle part is equipped with and is used for connecting penetrating hole on the transformer magnetic core, and upper baffle (2) are connected at wire winding portion (1) top, and lower baffle (3) are connected to wire winding portion (1) bottom, connects the pedestal on lower baffle (3), is equipped with wire leading groove, hanging wire arch and contact pin on the pedestal.

2. The transformer framework according to claim 1, wherein the base body comprises a primary side base body (4) and a secondary side base body (5), and the primary side base body (4) and the secondary side base body (5) are oppositely connected to two sides of the lower baffle plate (3); the length of the secondary side seat body (5) is longer than that of the primary side seat body (4).

3. A transformer skeleton according to claim 2, characterized in that the lead grooves comprise a primary side lead groove (6) and a secondary side lead groove (7), the primary side lead groove (6) being arranged on the primary side housing (4), the secondary side lead groove (7) being arranged on the secondary side housing (5).

4. A transformer armature according to claim 3, characterized in that the pins comprise primary (8) and secondary (9) side pins; six primary side pins (8) are arranged on the primary side seat body (4) side by side, and a primary side lead groove (6) is arranged between two adjacent primary side pins (8); four secondary side contact pins (9) are arranged on the secondary side base (5) side by side, and a secondary side lead groove (7) is arranged between two adjacent secondary side contact pins (9).

5. A transformer skeleton according to claim 4, characterized in that the wire hanging protrusions are primary protrusions (10) provided on the primary side housing (4) and secondary protrusions provided on the secondary side housing (5); the primary side bulge (10) is positioned between the primary side contact pin (8) and the magnetic core of the transformer; the secondary side bulge comprises a long bulge baffle (11) and a short bulge baffle (12), and the long bulge baffle (11) is positioned between the secondary side contact pin (9) and the magnetic core of the transformer; the short protruding baffle (12) is positioned between the long protruding baffle (11) and the secondary side contact pin (9); a secondary side outgoing line wiring groove is formed between the long protruding baffle (11) and the short protruding baffle (12).

6. The transformer framework according to claim 5, wherein the positions of the primary side protrusions (10) opposite to the second primary side pins (8) and the fifth primary side pins (8) are respectively provided with a magnetic core grounding wire wiring groove.

7. The transformer framework according to claim 5, wherein the number of the short protruding baffles (12) is four, and the four short protruding baffles (12) are arranged in a one-to-one opposite manner to the four secondary side pins (9).

8. The transformer framework according to claim 5, characterized in that the outer end of the secondary side base (5) is provided with four lead wire clamping grooves (13), and the four lead wire clamping grooves (13) are oppositely arranged at the outer sides of the four secondary side contact pins (9); four guide grooves are formed in one side face of the secondary side contact pin (9) far away from the secondary side base (5), and the four guide grooves are arranged in one-to-one opposite to the four lead clamping grooves (13).

9. The transformer framework according to claim 8, characterized in that a wire-penetrating slot (14) is formed in the middle of the secondary side seat body (5), and a lead wire tensioning component (15) is arranged in the wire-penetrating slot (14); the outgoing line tensioning component (15) comprises a wiring frame (16) arranged in the wiring trough (14), the upper side of one end, close to the winding part (1), of the wiring frame (16) is connected with a leading-in wheel (17), the middle part of the wiring frame (16) is connected with a first tensioning wheel (18), one end, far from the winding part (1), of the wiring frame (16) is connected with a second tensioning wheel (19), and the lower side of one end, close to the winding part (1), of the wiring frame (16) is connected with a turning wheel (20); the first tensioning wheel (18) and the second tensioning wheel (19) are connected through a tensioning connecting rod (21); the chute (16) is connected with a jacking part (22), and the jacking part (22) is connected with the first tensioning wheel (18).

10. A process for manufacturing a transformer armature, suitable for manufacturing a transformer armature according to any one of claims 1-9, characterized in that the process comprises the steps of:

injection molding the winding part (1) through an injection mold to obtain the winding part (1);

the upper baffle (2) is obtained through injection molding of an injection mold of the upper baffle (2);

injection molding is carried out on the lower baffle and the seat body through an injection mold to obtain an integrally formed lower baffle (3) and seat body;

the two ends of the winding part (1) are respectively and fixedly connected with the upper baffle plate (2) and the lower baffle plate (3);

and assembling the contact pin on the base body.