CN218676714U - Wide-range filtering effect inductance device considering large current and small current - Google Patents

Abstract

The utility model relates to a technical field of dc-to-ac converter welding machine inductance, in particular to compromise wide range filtering effect induction system of big or small electric current, including magnetic core, skeleton, winding and fixed plate, the winding sets up at the skeleton surface, the magnetic core is worn to establish in the skeleton and is fixed on the fixed plate, the magnetic core includes that iron core one, iron core two, iron core three and iron core four, the iron core one sets up with the two parallel interval of iron core, three and the four parallel interval setting of iron core, just the iron core one is different from iron core three and four interval sizes of iron core with two interval sizes of iron core. The application improves the filtering effect on large and small currents.

Description

Wide-range filtering effect inductance device considering large current and small current

Technical Field

The application relates to the technical field of inverter welding machine inductors, in particular to an inductor device giving consideration to large and small currents and wide filtering effects.

Background

An inductive device is a device that converts electrical energy into magnetic energy for storage. The inductance device has certain inductance and can block the change of current, and if the inductance device is in a state of no current passing, the inductance device tries to block the current from passing after the circuit is switched on; if the inductive device is in a state of passing current, the inductive device will try to keep the current unchanged when the circuit is disconnected.

The output direct current filter inductor in the inversion product equipment is an important device for improving the welding performance of the inversion product equipment, and comprises a closed EI-shaped inductor and a core-type inductor. The core-on-inductor in the market realizes current filtering by winding a winding on a framework and inserting a single magnetic core into the framework.

In view of the above technologies, the inventor believes that the strip inductor has a single structure and cannot simultaneously achieve the filtering effect of the inductor device in large and small currents.

SUMMERY OF THE UTILITY MODEL

In order to improve the filtering effect on large and small currents, the application provides an inductance device giving consideration to the wide-range filtering effect of the large and small currents.

The application provides a compromise wide range filtering effect inductance means of big or small electric current adopts following technical scheme: the utility model provides a compromise big or small electric current wide region filtering effect inductance device includes magnetic core, skeleton, winding and fixed plate, the winding sets up at the skeleton surface, the magnetic core is worn to establish in the skeleton and is fixed on the fixed plate, the magnetic core includes iron core one, iron core two, iron core three and iron core four, iron core one sets up with the two parallel interval of iron core, iron core three sets up with the four parallel interval of iron core, just iron core one is different from iron core three with the four interval sizes of iron core with the two interval sizes of iron core.

By adopting the technical scheme, the interval between the first iron core and the second iron core is different from the interval between the third iron core and the fourth iron core, so that the magnetic resistance can be reduced by the two small-distance iron cores, and the inductance current filtering effect is improved; the two large-distance iron cores can increase the magnetic resistance, improve the magnetic induction saturation point and achieve the effect of filtering large current; and the inductance device composed of a plurality of groups of iron cores can adjust the distance between the iron cores, realize the adjustment of inductance parameters, reasonably adjust the distance between the two iron cores according to the welding type and application scene, meet engineering requirements, and improve the practicability of the inductance device.

Optionally, the first iron core, the second iron core, the third iron core and the fourth iron core are the same in shape and size, and are all L-shaped, one end of the first long part of the iron core is arranged in a gap with one end of the second short part of the iron core, and one end of the first short part of the iron core, which is far away from the first long part of the iron core, is arranged in a gap with one end of the second long part of the iron core, which is far away from the second short part of the iron core; the one end of four long portions of iron core and the one end clearance setting of three short portions of iron core, the one end that four short portions of iron core kept away from four long portions of iron core and the one end clearance setting that three short portions of iron core were kept away from to three long portions of iron core.

Through adopting above-mentioned technical scheme, compare ordinary bar inductance, L shape iron core can reduce the magnetic leakage, improves magnetic property, reaches to improve welding performance, expands the application range of reactance.

Optionally, the framework comprises a column body, an upper limiting sheet and a lower limiting sheet, one end of the column body is connected with the upper limiting sheet, the other end of the column body is connected with the lower limiting sheet, and the winding is wound on the outer surface of the column body.

By adopting the technical scheme, the upper limiting sheet and the lower limiting sheet can prevent the winding from falling off the framework in the use process, so that the stability of the output current of the inductance device in the working process is improved; and the upper limiting sheet and the lower limiting sheet can effectively reduce the condition that a large-load wire is wound outside the framework in diameter.

Optionally, an inner cavity is formed in the cylinder, the upper limiting piece is provided with an upper through hole, and the long part of the second iron core and the long part of the third iron core penetrate through the upper through hole and are clamped in the inner cavity.

Through adopting above-mentioned technical scheme, through with two and three joint connections of iron core to the cylinder, improved two, three and the skeleton connection's of iron core stability.

Optionally, the fixed plate includes mounting panel one and mounting panel two, mounting panel one has seted up mounting groove one, mounting panel two has seted up mounting groove two, the equal joint of the one end of iron core one, iron core two, iron core three and iron core four is in mounting groove one, the equal joint of the other end of iron core one, iron core two, iron core three and iron core four is in mounting groove two.

Through adopting above-mentioned technical scheme, through with iron core one, iron core two, iron core three and iron core four do not block to between mounting panel one and the mounting panel two, realized fixing the magnetic core on the fixed plate to fix the skeleton on the fixed plate, promoted the holistic stability of this inductance device.

Optionally, a reinforcing component is disposed between the magnetic core and the fixing plate.

Through adopting above-mentioned technical scheme, through set up the reinforcement subassembly between magnetic core and fixed plate, improved the stability of being connected between further magnetic core and the fixed plate.

Optionally, the reinforcing assembly comprises a first bolt, a second bolt, a third bolt and a fourth bolt, and the first bolt rotatably penetrates through one end of the first mounting plate and one end of the first iron core; the third bolt is rotatably arranged at one end of the second mounting plate and the other end of the first iron core in a penetrating manner; the second bolt rotates the other end of wearing to establish mounting panel one and the one end of iron core four, the fourth bolt rotates the other end of wearing to establish mounting panel two and the other end of iron core four.

By adopting the technical scheme, one end of the first iron core is fixedly arranged in the first mounting plate, and the other end of the first iron core is fixedly arranged in the second mounting plate; one end of the iron core IV is fixedly arranged in the first mounting plate, and the other end of the iron core IV is fixedly arranged in the fourth mounting plate.

Optionally, an insulating elastic pad is arranged on the side wall of the inner cavity.

Through adopting above-mentioned technical scheme, through being provided with insulating cushion at the inner chamber lateral wall, strengthened the insulating effect to iron core two and iron core three plays, avoid simultaneously at lathe centre gripping skeleton coiling electromagnetic wire in-process, iron core two, iron core three and skeleton emergence rigid extrusion damage.

Drawings

Fig. 1 is a schematic view illustrating a front view structure of an inductance device with wide filtering effect in consideration of large and small currents according to the present application;

fig. 2 is an exploded view of an inductive device with wide filtering effect for both large and small currents.

Description of reference numerals: 1. a magnetic core; 11. a first iron core; 12. a second iron core; 13. a third iron core; 14. a fourth iron core; 2. a fixing plate; 21. a first mounting plate; 211. a first mounting groove; 22. a second mounting plate; 221. a second mounting groove; 3. a framework; 31. a cylinder; 311. an inner cavity; 32. an upper limiting sheet; 33. a lower stopper piece; 34. an insulating elastic pad; 4. a winding; 5. a reinforcement assembly; 51. a first bolt; 52. a second bolt; 53. a third bolt; 54. and a fourth bolt.

Detailed Description

The present application is described in further detail below with reference to fig. 1-2.

The embodiment of the application discloses an inductance device giving consideration to both large and small currents and wide-range filtering effects, and referring to fig. 1 and 2, the inductance device comprises a magnetic core 1, a fixing plate 2, a framework 3 and a winding 4; wherein, winding 4 sets up at skeleton 3 surface, and magnetic core 1 wears to establish in skeleton 3, and fixed mounting is on fixed plate 2. In the present embodiment, the bobbin 3 may be made of epoxy resin.

Referring to fig. 1 and 2, the magnetic core 1 includes a first iron core 11, a second iron core 12, a third iron core 13, and a fourth iron core 14, wherein the first iron core 11, the second iron core 12, the third iron core 13, and the fourth iron core 14 have the same shape and size, and are L-shaped, and the long portions of the first iron core 11, the second iron core 12, the third iron core 13, and the fourth iron core 14 are all parallel to each other; the side wall of the long part of the second iron core 12 is abutted against the side wall of the long part of the third iron core 13, one end of the long part of the first iron core 11 is arranged at a gap with one end of the short part of the second iron core 12, and the short part of the first iron core 11 and one end of the long part of the first iron core 11 are arranged at a gap close to one end of the long part of the second iron core 12; one end of the iron core four 14 long part is arranged in a gap with one end of the iron core three 13 short part, and one end of the iron core four 14 short part far away from the iron core four 14 long part is arranged in a gap with one end of the iron core three 13 long part. The distance between the first iron core 11 and the second iron core 12 is L1, the distance between the third iron core 13 and the fourth iron core 14 is L2, in the embodiment of the application, the value of L1 is smaller than that of L2, and the distance between the first iron core 11 and the second iron core 12 is smaller, so that the magnetic resistance can be reduced, and the inductance current filtering effect can be improved; the distance between the three iron cores 13 and the four iron cores 14 is large, so that the magnetic resistance can be increased, the magnetic induction saturation point is improved, and the filtering effect of large current is achieved.

In order to improve the electromagnetic stability of the inductance device, the first iron core 11, the second iron core 12, the third iron core 13 and the fourth iron core 14 are all made of ferrite materials, and the first iron core 11, the second iron core 12, the third iron core 13 and the fourth iron core 14 made of the ferrite materials have good electromagnetic interference suppression performance.

Referring to fig. 1 and 2, the fixing plate 2 includes a first mounting plate 21 and a second mounting plate 22 which are arranged in parallel, the first mounting plate 21 is provided with a first mounting groove 211, the second mounting plate 22 is provided with a second mounting groove 221, and the short portion of the first iron core 11, one end of the long portion of the second iron core 12, one end of the long portion of the third iron core 13 and the short portion of the fourth iron core 14 are all clamped into the first mounting groove 211; one end of the first 11 long part of the iron core, one end of the second 11 short part of the iron core, the third 13 short part of the iron core and one end of the fourth 14 long part of the iron core, which are far away from the fourth 14 short part of the iron core, are all clamped in the second mounting groove 221, so that the first 11 iron core, the second 12 iron core, the third 13 iron core and the fourth 14 iron core are fixedly mounted between the first mounting plate 21 and the second mounting plate 22.

Referring to fig. 1 and 2, a reinforcing member 5 is provided between the magnetic core 1 and the fixing plate 2, and the reinforcing member 5 serves to reinforce the stability of the connection between the magnetic core 1 and the fixing plate 2.

Referring to fig. 1 and 2, a first screw hole is formed at one end of the long part of the first iron core 11 close to the short part of the first iron core 11, and a second screw hole is formed at one end of the long part of the first iron core 11 far away from the short part of the first iron core 11; a third screw hole is formed in one end, close to the short part of the iron core four 14, of the long part of the iron core four 14, and a fourth screw hole is formed in one end, far away from the short part of the iron core four 14, of the long part of the iron core four 14; the fifth screw hole is formed in one end of the first mounting plate 21, the sixth screw hole is formed in the other end of the first mounting plate, the seventh screw hole is formed in one end of the second mounting plate 22, and the eighth screw hole is formed in the other end of the second mounting plate. The fixing assembly 5 includes a first bolt 51, a second bolt 52, a third bolt 53, and a fourth bolt 54. Wherein, the first bolt 51 is arranged in the fifth screw hole and the first screw hole in a penetrating manner, the second bolt 52 is arranged in the sixth screw hole and the second screw hole in a penetrating manner, the third bolt 53 is arranged in the seventh screw hole and the third screw hole in a penetrating manner, and the fourth bolt 54 is arranged in the eighth screw hole and the fourth screw hole in a penetrating manner; the first bolt 51 and the third bolt 53 improve the stability of the connection of the first iron core 11 with the fixed plate 2, and the second bolt 52 and the fourth bolt 54 improve the stability of the connection of the fourth iron core 14 with the fixed plate 2.

Similarly, the end of the long part of the second iron core 12 close to the short part of the second iron core 12 and the end of the long part of the third iron core 13 close to the short part of the third iron core 13 can be fixedly connected with the second mounting plate 22 through bolts; one end of the second 12 long part of the iron core, which is far away from the short part of the second 12 iron core, and one end of the third 13 long part of the iron core, which is far away from the short part of the third 13 iron core, are fixedly connected with the first mounting plate 21 through bolts, so that the connection stability of the first 11 iron core, the second 12 iron core, the third 13 iron core, the fourth 14 iron core and the fixing plate 2 is further improved.

According to the application scene of the motor, the distance between the first iron core 11 and the second iron core 12 and the distance between the third iron core 13 and the fourth iron core 14 are flexibly adjusted, inductance parameter adjustment is achieved, and compared with a common strip-shaped inductor, the inductance device can reduce magnetic leakage, improve magnetic performance, improve welding performance and expand the application range of reactance.

Referring to fig. 2, the frame 3 includes a column 31, an upper stopper 32, and a lower stopper 33; the upper limiting sheet 32 is integrally arranged at one end of the column body 31, the lower limiting sheet 33 is integrally arranged at the other end of the column body 31, and the winding 4 is sleeved on the outer surface of the column body 31, wherein the upper limiting sheet 32 and the lower limiting sheet 33 play a limiting role, and the winding 4 can be prevented from falling off from the surface of the column body 31.

Wherein, interior cavity 311 has been seted up in the cylinder 31, goes up spacing piece 32 and has seted up the through-hole, and lower through-hole has been seted up to spacing piece 33 down, and two 12 iron cores and three 13 iron cores pass last through-hole, inner cavity 311 and lower through-hole in proper order, and two 12 long portions of iron cores and three 13 long portions of iron cores all joint to in the cylinder 31 inner cavity 311. Through setting up skeleton 3, both improved this induction system's inductance value, made things convenient for the iron core clamping to go up the lathe coiling again, solved the big load line footpath and improved production efficiency at little iron core coiling worker's difficult problem.

Referring to fig. 2, the side wall of the inner cavity 311 is provided with an insulating elastic pad 34, and in the embodiment of the present application, the insulating elastic pad 34 is provided as a rubber pad; the insulating elastic cushion 34 improves the connection effect of the second iron core 12, the third iron core 13 and the column 31, and reduces the hard collision damage among the second iron core 12, the third iron core 13 and the column 31 in the winding process of the machine tool clamping framework 3.

The implementation principle is as follows: by setting the distance between the first iron core 11 and the second iron core 12 to be different from the distance between the third iron core 13 and the fourth iron core 14, inductance parameters of the inductance device in medium and small currents can be considered, so that the welding performance of the inductance device is improved, the overload capacity is enhanced, the magnetic leakage is reduced, and the dynamic inductance adjusting range is wide. The large-load wire diameter is wound on the small framework 3, so that the size of the inductance device is reduced, the inductance device can be installed in an inverter machine with small size, and the welding performance of the inverter machine with small size is improved.

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 (8)

1. The utility model provides a compromise big or small electric current wide region filtering effect induction system, includes magnetic core (1), skeleton (3), winding (4) and fixed plate (2), winding (4) set up at skeleton (3) surface, magnetic core (1) is worn to establish in skeleton (3) and is fixed on fixed plate (2), its characterized in that: magnetic core (1) includes iron core one (11), two (12) of iron core, three (13) of iron core and four (14) of iron core, iron core one (11) sets up with two (12) parallel intervals of iron core, three (13) of iron core and four (14) parallel intervals of iron core set up, just one (11) of iron core and two (12) intervals size difference in three (13) of iron core and four (14) intervals size of iron core.

2. The inductive device of claim 1, wherein said inductive device is capable of filtering both large and small currents in a wide range, and further comprises: the shape and size of the first iron core (11), the second iron core (12), the third iron core (13) and the fourth iron core (14) are the same, the shapes of the first iron core (11), the second iron core (12) and the fourth iron core (14) are all L-shaped, one end of the long part of the first iron core (11) and one end of the short part of the second iron core (12) are arranged in a gap mode, one end of the short part of the first iron core (11) far away from the long part of the first iron core (11) and one end of the long part of the second iron core (12) far away from the short part of the second iron core (12) are arranged in a gap mode; one end of the four (14) long parts of the iron core and one end gap of the three (13) short parts of the iron core are arranged, and one end of the four (14) short parts of the iron core, which is far away from the four (14) long parts of the iron core, and one end of the three (13) short parts of the iron core, which is far away from the three (13) long parts of the iron core, are arranged in a gap.

3. The inductive device of claim 2, wherein said inductive device has a wide range of filtering effects with a wide range of currents, and further comprises: skeleton (3) are including cylinder (31), go up spacing piece (32) and spacing piece (33) down, the one end and the last spacing piece (32) of cylinder (31) are connected, and the other end is connected with spacing piece (33) down, winding (4) coiling is in cylinder (31) surface.

4. The inductive device of claim 3, wherein said inductive device is capable of filtering both large and small currents in a wide range: an inner cavity (311) is formed in the column body (31), an upper through hole is formed in the upper limiting sheet (32), and the long part of the second iron core (12) and the long part of the third iron core (13) penetrate through the upper through hole and are clamped into the inner cavity (311).

5. The inductive device of claim 4, wherein said inductive device has a wide range of filtering effects with a wide range of currents, and further comprises: fixed plate (2) include mounting panel one (21) and mounting panel two (22), mounting groove one (211) has been seted up in mounting panel one (21), mounting groove two (221) have been seted up in mounting panel two (22), the equal joint of one end of iron core one (11), iron core two (12), iron core three (13) and iron core four (14) is in mounting groove one (211), the equal joint of the other end of iron core one (11), iron core two (12), iron core three (13) and iron core four (14) is in mounting groove two (221).

6. The inductive device of claim 5, wherein said inductive device is capable of filtering both large and small currents in a wide range, and further comprises: and a reinforcing component (5) is arranged between the magnetic core (1) and the fixing plate (2).

7. The inductive device of claim 6, wherein said inductive device is capable of filtering both large and small currents in a wide range: the reinforcing component (5) comprises a first bolt (51), a second bolt (52), a third bolt (53) and a fourth bolt (54), and the first bolt (51) rotatably penetrates through one end of the first mounting plate (21) and one end of the first iron core (11); the third bolt (53) is rotatably arranged at one end of the second mounting plate (22) and the other end of the first iron core (11) in a penetrating manner; the other end of the mounting plate I (21) and one end of the iron core IV (14) are penetrated in a rotating mode through the second bolt (52), and the other end of the mounting plate II (22) and the other end of the iron core IV (14) are penetrated in a rotating mode through the fourth bolt (54).

8. The inductive device of claim 4, wherein said inductive device has a wide range of filtering effects with a wide range of currents, and further comprises: and an insulating elastic pad (34) is arranged on the side wall of the inner cavity (311).

Images