CN209912700U - Low leakage inductance noise reduction type transformer - Google Patents

Abstract

The utility model discloses a type of making an uproar transformer falls in low leakage inductance, it is including skeleton, two E type magnetic cores and the coil of coiling on the skeleton, the difference is: the pin body of the transformer is inserted and sleeved on the pin frame, the coil penetrates through the second through hole in the pin body and is wound on the pin, the lower end of the pin body is buckled with the baffle plate, the coil and the pin are connected in a welding-free mode, the convenience and convenience are realized, the workload is greatly reduced, the time is saved, the metal wire body is not exposed, the insulativity is better, the service life of the transformer is longer, a limiting block is formed on the framework, the tail ends of the pin frame are mutually folded and tightly wrapped at two ends of the magnetic core, the position of the magnetic core is fixed on the framework, the vibration is reduced, and the noise is reduced.

Description

Low leakage inductance noise reduction type transformer

The technical field is as follows:

the utility model relates to a transformer field especially relates to a type of making an uproar transformer falls in low leakage inductance.

Background art:

the transformer is a device for changing alternating voltage by using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil and a magnetic core. The main functions are voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer) and the like.

However, the conventional welding method is adopted for connecting the coil and the pins of the existing transformer, the welding head is exposed outside, the appearance is not elegant, the insulativity is poor, the electric leakage or the electromagnetic interference phenomenon is easy to occur, the service life of the transformer is influenced, the welding method is complicated, the modification is complicated once the welding is carried out on a certain pin, and meanwhile, the insecure noise at the connecting position of the magnetic core and the firmware of the transformer is great.

The utility model has the following contents:

the utility model aims at solving the existing problem, and provide a low leakage inductance type of making an uproar transformer of falling, this transformer pin adopts exempts from the welded mode, and pin body and pin frame adopt the plug bush mode, can easily change welded position at any time, and coil and pin needle's connection does not expose outside simultaneously, and insulating nature is good, long service life, the utility model discloses a technical solution is as follows:

the utility model provides a low leakage inductance falls type of making an uproar transformer, its includes skeleton, two E type magnetic cores and the coil of coiling on the skeleton, the skeleton is including the coil frame that the coiling has the coil, the equal shaping in coil frame one end both sides has the pin frame, coil frame other end both sides with the equal shaping of position department corresponding with the pin frame has the spacing piece, the plug bush has the pin body on the pin frame, the shaping have on the pin frame with the baffle that the pin body lower extreme was laminated mutually, baffle central point puts the department and has seted up first through-hole, first through-hole interpolation has the pin needle, pin needle one end is inlayed and is fixed in pin body lower extreme, pin body lower extreme is seted up flutedly, set up the second through-hole on the recess side, the coil pass the second through-hole coiling in on the pin needle.

Preferably, the foot guide frame is located the baffle top and perpendicular to baffle department has seted up the forked tail recess, the pin body with the shaping of the corresponding position department of forked tail recess has the sand grip, its big or small shape of sand grip with the forked tail recess phase-match.

Preferably, the groove is a step-shaped groove, the size and the shape of the opening at the edge of the groove are matched with the baffle, and the baffle is buckled with the groove.

Preferably, a conductive sheet is fixed on one surface of the groove perpendicular to the pin needles.

Preferably, the inner depth of the groove is H1, and the inner depth H1 is 1-2 mm.

Preferably, the tail ends of the two foot-guiding frames are mutually folded and tightly wrapped at the two ends of the magnetic core.

Preferably, the two pin supports are formed with arc chamfers at the edges of the opposite surfaces thereof.

Preferably, the distance between the pin supports is equal to the width of the magnetic core.

Preferably, the distance between the two limit blocks is consistent with the width of the magnetic core.

The beneficial effects of the utility model reside in that:

1. the utility model relates to a low leakage inductance type of making an uproar transformer that falls, the welded mode is exempted from in the connected mode adoption of its pin body and coil, with the coil coiling on the pin needle, and the coil of coiling hides in the recess of pin body, does not expose the metal wire body, and the insulated wire is better, and the life of transformer is longer, and exempts from the welded mode and make whole process more convenient, is a new breakthrough in transformer preparation field.

2. The utility model relates to a low leakage inductance type of making an uproar transformer that falls, its pin body adopts the mode of plug bush with the foot rest, and the user can change or select the position of the pin of required installation at will according to the demand, and easy operation is convenient, and when the pin needle that discovery used damaged simultaneously, can take off the pin body, and complete pin body on the plug bush again, and easy operation is convenient, has prolonged the life of transformer.

2. The utility model relates to a low leakage inductance type of making an uproar transformer that falls, stopper and arc dog are used for the position of fixed magnetic core, can reduce the vibration to reduce the noise.

Description of the drawings:

fig. 1 is a schematic structural view of the low leakage inductance noise reduction type transformer of the present invention;

fig. 2 is a cross-sectional view of the transformer pin body of the present invention;

fig. 3 is a schematic structural view of the transformer pin body of the present invention;

fig. 4 is the schematic diagram of the transformer skeleton structure of the present invention.

In the drawings: 1. a framework; 2. a magnetic core; 3. a coil; 4. a coil frame; 5. a pin body; 51. a pin; 52. a groove; 53. a second through hole; 54. a convex strip; 55. a conductive sheet; 6. a limiting block; 7. a foot-guiding frame; 71. a baffle plate; 72. a first through hole; 73. dovetail grooves; 74. an arc-shaped stop block.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "inside", "inner", "etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected or detachably connected; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

As shown in fig. 1-4, a low leakage inductance and noise reduction transformer comprises a frame 1, a dual E-shaped magnetic core 2 and a coil 3 wound on the frame 1, wherein the frame 1 comprises a coil frame 4 wound with the coil 3, a lead frame 7 is formed on both sides of one end of the coil frame 4, a limiting block 6 is formed on both sides of the other end of the coil frame 4 corresponding to the lead frame 7, a lead body 5 is inserted and sleeved on the lead frame 7, so that the lead body 5 is a detachable structure, a user can select a position for installing the lead body 5 according to needs, when a lead pin 51 of the lead body 5 is damaged, the damaged lead body 5 can be easily detached and replaced with a new lead body 5, a baffle 71 buckled with the lower end of the lead body 5 is formed on the lead frame 7, a first through hole 72 is formed in the center of the baffle 71, the utility model discloses a coil winding device, including first through-hole 72, pin 51, baffle 71, coil 3, first through-hole 72 is inserted there is pin 51, pin 51 one end is inlayed and is fixed in 5 lower extremes of pin body, recess 52 has been seted up to 5 lower extremes of pin body, recess 52 is the notch cuttype recess, the size and shape of its marginal opening part of recess 52 with baffle 71 phase-match, second through-hole 53 has been seted up on a recess 52 side, coil 3 passes second through-hole 53 and winds on pin 51, coil 3 winds in pin 51's winding length is greater than the degree of depth of recess 52, baffle 71 lock in the recess 52, impress the coil of winding on pin 51 inside recess 52.

Specifically, a dovetail groove 73 is formed in the foot guiding frame 7 above the baffle 71 and perpendicular to the baffle 71, a protruding strip 54 is formed at a position of the pin body 5 corresponding to the dovetail groove 73, and the size and shape of the protruding strip 54 are matched with the dovetail groove 73, so that the pin body 5 and the foot guiding frame 7 are in plug-in type connection.

Specifically, a conductive sheet 55 is fixed on one surface of the groove 52 perpendicular to the pin 51, so that the contact area between the pin 51 and the coil 3 is increased, and the coil 3 and the pin 51 are ensured to be mutually connected without welding.

Specifically, the inner depth of the groove 52 is H1, and the inner depth H1 is 1-2 mm, so that the pin and the coil are further ensured to be connected.

Specifically, the tail ends of the two foot-guiding frames 7 are mutually folded and tightly wrapped at the two ends of the magnetic core 2, so that the position of the magnetic core 2 on the framework 1 is better fixed.

Specifically, two its edge shaping has an arc chamfer on its face in opposite directions of foot lead frame 7 to guarantee the face in opposite directions of foot lead frame 7 is for leaning out, two opening grow between the foot lead frame 7 to guarantee that magnetic core 2 places between the foot lead frame 7 more easily.

Specifically, the distance between the pin supports 7 is consistent with the width of the magnetic core 2, so that the pin supports 7 can better fix the magnetic core 2.

Specifically, two the interval between stopper 6 with the width of magnetic core 2 is unanimous to guarantee that stopper 6 can fix magnetic core 2 better.

The above description is only a preferred embodiment of the present invention, and all other embodiments obtained by those skilled in the art without any creative effort shall fall within the protection scope of the present invention.

Claims (9)

1. The utility model provides a type of making an uproar transformer falls in low leakage inductance, its is including skeleton (1), two E type magnetic cores (2) and coil (3) of coiling on skeleton (1), its characterized in that: the bobbin (1) comprises a coil frame (4) wound with a coil (3), pin frames (7) are formed on two sides of one end of the coil frame (4), limiting blocks (6) are formed on two sides of the other end of the coil frame (4) and correspond to the pin frames (7), pin bodies (5) are inserted into the pin frames (7), baffles (71) attached to the lower ends of the pin bodies (5) are formed on the pin frames (7), first through holes (72) are formed in the central positions of the baffles (71), pin needles (51) are inserted into the first through holes (72), one ends of the pin needles (51) are fixed to the lower ends of the pin bodies (5), grooves (52) are formed in the lower ends of the pin bodies (5), second through holes (53) are formed in one side face of the grooves (52), the coil (3) penetrates through the second through hole (53) and is wound on the pin needle (51).

2. The low leakage inductance noise reduction type transformer according to claim 1, wherein: dovetail grooves (73) are arranged above the baffle (71) and perpendicular to the baffle (71) on the foot guide frame (7), convex strips (54) are formed at positions corresponding to the dovetail grooves (73) on the pin body (5), and the convex strips (54) are matched with the dovetail grooves (73) in size and shape.

3. The low leakage inductance noise reduction type transformer according to claim 1, wherein: recess (52) are the notch cuttype recess, the size shape of its edge opening part of recess (52) with baffle (71) phase-match, baffle (71) with recess (52) looks lock.

4. The low leakage inductance noise reduction type transformer according to claim 1, wherein: and a conducting strip (55) is fixed on one surface of the groove (52) which is perpendicular to the pin needle (51).

5. The low leakage inductance noise reduction type transformer according to claim 1, wherein: the inner depth of the groove (52) is H1, and the inner depth H1 is 1-2 mm.

6. The low leakage inductance noise reduction type transformer according to claim 1, wherein: the tail ends of the two foot-guiding frames (7) are mutually folded and tightly wrapped at the two ends of the magnetic core (2).

7. The low leakage inductance noise reduction type transformer according to claim 1, wherein: and arc-shaped chamfers are formed at the edges of the two opposite surfaces of the two foot-guiding frames (7).

8. The low leakage inductance noise reduction type transformer according to claim 1, wherein: the distance between the foot-guiding frames (7) is consistent with the width of the magnetic core (2).

9. The low leakage inductance noise reduction type transformer according to claim 1, wherein: the distance between the two limiting blocks (6) is consistent with the width of the magnetic core (2).

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