CN219435651U - Chip-type winding common-mode inductor - Google Patents

Abstract

The utility model provides a sheet-type wound common-mode inductor, which comprises a base, wherein a rear plate is arranged on the rear side of the top of the base, a protection component is arranged on the front side of the rear plate, the protection component comprises a protection shell which is detachably connected to the front side of the rear plate, a square-shaped magnetic core is arranged in the protection shell, coil windings are wound on two sides of the magnetic core, a plurality of radiating grooves are formed in equal intervals on the two sides and the front side of the protection shell, the coil windings are protected by adopting the design of the base, the protection component and a grid of the rear plate, the protection shell can radiate heat and can be detached, the installation and maintenance of the subsequent coil windings are not affected, and if the protective shell falls down, a protection rubber strip on the protection shell is matched with a strip-shaped buffer air cushion to buffer and damp the protection shell, so that copper wires on the inductor coil can be in direct contact with the ground to generate collision when the inductor is prevented, and the service life of the sheet-type wound common-mode inductor is prolonged.

Description

Chip-type winding common-mode inductor

Technical Field

The utility model belongs to the technical field of inductors, and particularly relates to a chip-type wound common-mode inductor.

Background

An inductor is a component that can convert electric energy into magnetic energy and store it. The inductor is similar in structure to a transformer but has only one winding. The inductor has a certain inductance, which only impedes the current variation. If the inductor is in a state where no current is passing, it will attempt to block the flow of current through it when the circuit is on; if the inductor is in a state where current is flowing, it will attempt to maintain the current unchanged when the circuit is open. The inductor is also called choke, reactor and dynamic reactor, and has common mode inductance, which is plug-in inductance and is common mode choke with extremely high initial magnetic permeability and good filtering effect. The inductor is commonly used for filtering common-mode electromagnetic interference signals in a switching power supply of a computer.

The prior Chinese patent publication No. CN206649972U discloses a chip-type wound common-mode inductor, which comprises an inductor framework and an inductor winding, wherein an inductor iron core group is arranged on the outer side of the inductor framework, a heat conducting adhesive layer is arranged on the outer side of the inductor iron core group, a metal heat-radiating pore plate is wrapped on the outer side of the heat conducting adhesive layer, an insulating rubber sleeve is arranged on the outer side of the metal heat-radiating pore plate, a corner protective sleeve is arranged at the position, close to the corner of the inductor framework, of the inner side of the insulating rubber sleeve, a winding installation groove is formed in the inner side of the inductor framework, and the inductor winding is installed on the inductor framework, close to the inside of the winding installation groove; the metal heat dissipation pore plate and the heat conduction glue layer are convenient for quickly transferring the heat of the inductor iron sheet to the metal heat dissipation pore plate, the heat dissipation speed of the inductor is accelerated through the air flow of the hole in the middle of the pore plate, and the problem that the inductor and surrounding plastic parts are damaged due to the fact that a large amount of heat is deposited on the iron sheet and is difficult to dissipate is avoided. Above-mentioned piece formula wire winding common mode inductor is when in actual use, and copper line on the inductor coil is direct exposes in the air, does not set up the protective housing, and this inductor if fall to subaerial time, copper line on the inductor coil can produce the collision with subaerial direct contact, lacks the protection to piece formula wire winding common mode inductor, has reduced the life of piece formula wire winding common mode inductor, does not satisfy the user demand.

Accordingly, the present utility model has been made in view of the above problems, and an object of the present utility model is to provide a chip-type wound common-mode inductor which has a higher practical value.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a chip wound common mode inductor, which aims to solve the problems that when the conventional chip wound common mode inductor is in actual use, copper wires on an inductor coil are directly exposed in air, and a protective shell is not arranged, and if the inductor falls onto the ground, the copper wires on the inductor coil can be directly contacted with the ground to generate collision, so that the chip wound common mode inductor is lack of protection, the service life of the chip wound common mode inductor is reduced, and the use requirement is not met.

The purpose and the effect of the chip wound common mode inductor are achieved by the following specific technical means:

the utility model provides a piece formula wire winding common mode inductor, includes the base, the top rear side of base is provided with the back plate, the front side of back plate is provided with the protection subassembly, the protection subassembly is including dismantling the protecting crust of connecting in the back plate front side, the inside of protecting crust is provided with the magnetic core of mouth style of calligraphy, all coil the coil winding on the both sides of magnetic core, a plurality of radiating grooves have been seted up to the both sides and the front side equal distance of protecting crust, the front side of protecting crust is provided with radiating fin, two corners in front side of protecting crust all are provided with the protection rubber strip, be connected with bar buffer air cushion between protection rubber strip and the protecting crust.

Further, the protective shell is arranged to be of a -shaped structure, inserting plates are formed on two sides of the protective shell in an extending mode, and clamping blocks are connected to one side of each inserting plate.

Furthermore, slots are formed at the corresponding plugboards on the two sides of the rear plate, and clamping grooves matched with the clamping blocks are formed in the slots.

Further, the top both sides of back plate all are provided with the screw rod, every the one end of screw rod is all threaded and is run through in back plate and picture peg and threaded connection in the top of base, the inboard of back plate is connected with two heat conduction rubber seats, every the heat conduction rubber seat all contacts with the magnetic core.

Further, one surface of the back plate, which is back to the magnetic core, is provided with two groups of wire guide plates for placing wires at one end of the coil winding, and each group of wire guide plates is two.

Further, four paying-off grooves for placing wires at one end of the coil winding are formed in the base, and four binding posts are connected to the bottom of the base.

Further, the bottom both sides of base all are connected with the support frame, every two mounting holes have all been seted up on the support frame.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the coil winding is protected by adopting the grid design of the base, the protection component and the rear plate, the protection shell can be disassembled while radiating, the installation and maintenance of the subsequent coil winding are not affected, and if the protection shell falls down, the protection rubber strip on the protection shell is matched with the strip-shaped buffer air cushion to buffer and damp the protection shell, so that the copper wire on the inductor coil can be directly contacted with the ground to generate collision when the inductor falls onto the ground, and the service life of the chip-type winding common-mode inductor is prolonged;

2. through setting up back plate, the protecting crust, radiating fin and heat conduction glue seat cooperation and use, the both ends face of magnetic core all with the inner wall contact of heat conduction glue seat, heat conduction glue seat gives back plate and protecting crust with the heat transfer that common mode inductor produced, the heat is given off to radiating fin again, radiating fin gives off the air with the heat, the radiating efficiency of common mode inductor has been improved, coil winding has not only been protected effectively, the radiating effect of inductor has been improved effectively moreover, the life of inductor has been improved, avoid heat to be difficult to give off on the magnetic core in a large number of silts, cause the problem that inductor and plastic spare on every side damaged, the life of common mode inductor has been prolonged.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a schematic perspective view of a second embodiment of the present utility model.

Fig. 3 is a schematic perspective view of a coil winding of the present utility model.

Fig. 4 is a schematic perspective view of the guard of the present utility model.

In the figure, the correspondence between the component names and the drawing numbers is:

1. a base; 2. a rear plate; 3. a magnetic core; 4. a coil winding; 5. a protective assembly; 51. a protective shell; 52. a heat sink; 53. inserting plate; 54. a clamping block; 55. a heat radiation fin; 56. a clamping groove; 57. a screw; 58. a protective rubber strip; 59. a strip-shaped buffer air cushion; 6. a wire guide plate; 7. wire releasing grooves; 8. binding posts; 9. a support frame; 10. a mounting hole; 11. and a heat-conducting rubber seat.

Description of the embodiments

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples

As shown in fig. 1 to 4:

the utility model provides a sheet-type wound common-mode inductor, which comprises a base 1, wherein a rear plate 2 is arranged on the rear side of the top of the base 1, a protection component 5 is arranged on the front side of the rear plate 2, the protection component 5 comprises a protection shell 51 which is detachably connected to the front side of the rear plate 2, a notch-shaped magnetic core 3 is arranged in the protection shell 51, coil windings 4 are wound on two sides of the magnetic core 3, a plurality of heat dissipation grooves 52 are uniformly formed in the two sides and the front side of the protection shell 51 at equal intervals, heat dissipation fins 55 are arranged on the front side of the protection shell 51, protection rubber strips 58 are arranged at two corners of the front side of the protection shell 51, and a strip-shaped buffer air cushion 59 is connected between the protection rubber strips 58 and the protection shell 51.

In other embodiments, the protective shell 51 is in a -shaped structure, two sides of the protective shell 51 are respectively provided with an inserting plate 53 in an extending mode, one side of each inserting plate 53 is respectively connected with a clamping block 54, two sides of the rear plate 2 are respectively provided with a slot corresponding to the inserting plates 53, clamping grooves 56 matched with the clamping blocks 54 are respectively formed in the slots, the inserting plates 53 are matched with the slots, and the clamping blocks 54 are matched with the clamping grooves 56 to increase the connection tightness between the protective shell 51 and the rear plate 2.

In other embodiments, screw rods 57 are arranged on two sides of the top of the rear plate 2, one end of each screw rod 57 is threaded through the rear plate 2 and the plugboard 53 and is in threaded connection with the top of the base 1, the protective shell 51 and the rear plate 2 are fixedly connected by the screw rods 57, follow-up disassembly is also convenient, two heat conducting rubber seats 11 are connected to the inner side of the rear plate 2, each heat conducting rubber seat 11 is in contact with the magnetic core 3, two end faces of the magnetic core 3 are in contact with the inner wall of the heat conducting rubber seat 11, the heat conducting rubber seat 11 transfers heat generated by the common mode inductor to the rear plate 2 and the protective shell 51, the rear plate 2 and the protective shell 51 are made of metal, the rear plate 2 and the protective shell 51 made of metal are subjected to preliminary heat dissipation, and meanwhile, the rear plate 2 adopts a grid design to conduct heat dissipation on the coil winding 4.

In other embodiments, the back plate 2 is provided with two sets of wire guide plates 6 on one surface of the back magnetic core 3 for placing wires at one end of the coil winding 4, and each set of wire guide plates 6 is two, and by using the wire guide plates 6, the wires at one end of the coil winding 4 can be fixed by fixing and guiding the wires to the binding post 8 of the base 1 for winding, so that the wires exposed outside the back plate 2 can be effectively protected.

In other embodiments, four wire releasing grooves 7 for placing wires at one end of the coil winding 4 are formed in the base 1, four binding posts 8 are connected to the bottom of the base 1, the wires at one end of the coil winding 4 pass through the wire releasing grooves 7 to be respectively connected with the corresponding binding posts 8, and the chip-type winding common-mode inductor can be connected into an electrical appliance through the binding posts 8 for use.

In other embodiments, the bottom both sides of base 1 all are connected with support frame 9, have all seted up two mounting holes 10 on every support frame 9, when needs place the inductor in a place, install support frame 9 through mounting hole 10 and outside bolt, with terminal 8 overhead, can prevent terminal 8 direct and desktop contact, and then avoid external pressure to make terminal 8 crooked to the protection effect of terminal 8 has been improved, and terminal 8 can normal use.

Specific use and action of the embodiment:

in the utility model, when the inductor is required to be placed at a certain place, the supporting frame 9 is installed through the installation hole 10 and the external bolt, the binding post 8 is elevated, the binding post 8 can be prevented from being directly contacted with a table top, further, the binding post 8 is prevented from being bent by external pressure, the protection effect of the binding post 8 is improved, the binding post 8 can be normally used, one end lead of the coil winding 4 passes through the wire release groove 7 to be respectively connected with the corresponding binding post 8, the chip-type wound common-mode inductor is connected into an electric appliance for use through the binding post 8, the coil winding 4 is subjected to surrounding protection through the grid design of the base 1, the protective shell 51 and the rear plate 2, if the protective shell 51 is broken, the protective shell 51 is buffered and damped by the protection rubber strip 58 matched with the strip-shaped buffer air cushion 59, and when the inductor is prevented from falling onto the ground, the copper wires on the inductor coil can collide with the ground directly, the service life of the chip winding common mode inductor is prolonged, when the chip winding common mode inductor works, the two end faces of the magnetic core 3 are contacted with the inner wall of the heat conducting rubber seat 11, the heat conducting rubber seat 11 transfers the heat generated by the common mode inductor to the rear plate 2 and the protective shell 51, the rear plate 2 and the protective shell 51 are made of metal to perform primary heat dissipation, the protective shell 51 transfers the heat to the heat dissipation fins 55 again, the heat is dissipated into the air through the heat dissipation fins 55, the heat dissipation efficiency of the common mode inductor is improved, the coil winding 4 is effectively protected, the heat dissipation effect of the inductor is effectively improved, the service life of the inductor is prolonged, the problem that a large amount of heat is accumulated on the magnetic core 3 and is difficult to dissipate, and the inductor and surrounding plastic parts are damaged is avoided, the service life of the common mode inductor is prolonged; when the protective shell 51 needs to be disassembled, the screw 57 is taken out from the rear plate 2 and the inserting plate 53, the inserting plate 53 is separated from the inserting groove, the clamping block 54 is separated from the clamping groove 56, and the protective shell 51 can be disassembled without influencing the installation and maintenance of the subsequent coil winding 4.

It should be noted that, the magnetic core 3, the coil winding 4 and the terminal 8 are devices or apparatuses existing in the prior art, or are devices or apparatuses that can be implemented in the prior art, and the power supply, the specific composition and the principle thereof are clear to those skilled in the art, and are common general knowledge in the art, so they will not be described in detail.

The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (7)

1. A chip wound common mode inductor, characterized by: including base (1), the top rear side of base (1) is provided with back plate (2), the front side of back plate (2) is provided with protection subassembly (5), protection subassembly (5) are including dismantling and connect in protecting crust (51) of back plate (2) front side, the inside of protecting crust (51) is provided with magnetic core (3) of mouth style of calligraphy, all coil winding (4) on the both sides of magnetic core (3), a plurality of heat dissipation grooves (52) have been seted up to the both sides and the front side equal distance of protecting crust (51), the front side of protecting crust (51) is provided with radiating fin (55), the front side both corners of protecting crust (51) all is provided with protection rubber strip (58), be connected with bar buffering air cushion (59) between protection rubber strip (58) and protecting crust (51).

2. The chip wound common mode inductor of claim 1, wherein: the protection shell (51) is arranged to be of a -shaped structure, inserting plates (53) are formed on two sides of the protection shell (51) in an extending mode, and clamping blocks (54) are connected to one side of each inserting plate (53).

3. The chip wound common mode inductor of claim 2, wherein: slots are formed at positions of two sides of the rear plate (2) corresponding to the plugboards (53), and clamping grooves (56) matched with the clamping blocks (54) are formed in the slots.

4. The chip wound common mode inductor of claim 1, wherein: screw rods (57) are arranged on two sides of the top of the rear plate (2), one end of each screw rod (57) penetrates through the rear plate (2) and the plugboard (53) in a threaded mode and is connected to the top of the base (1), two heat conducting rubber seats (11) are connected to the inner side of the rear plate (2), and each heat conducting rubber seat (11) is in contact with the magnetic core (3).

5. The chip wound common mode inductor of claim 1, wherein: one surface of the back plate (2) back to the magnetic core (3) is provided with a wire guide plate (6) used for placing wires at one end of the coil winding (4), the wire guide plate (6) is arranged into two groups, and each group of wire guide plates (6) is arranged into two groups.

6. The chip wound common mode inductor of claim 1, wherein: four paying-off grooves (7) for placing wires at one end of the coil winding (4) are formed in the base (1), and four binding posts (8) are connected to the bottom of the base (1).

7. The chip wound common mode inductor of claim 1, wherein: the two sides of the bottom of the base (1) are connected with supporting frames (9), and each supporting frame (9) is provided with two mounting holes (10).