CN215955031U

CN215955031U - Novel cylindrical combined magnetic powder core

Info

Publication number: CN215955031U
Application number: CN202122033286.1U
Authority: CN
Inventors: 张耿杰
Original assignee: Meizhou Ruiguan New Material Technology Co ltd
Current assignee: Meizhou Ruiguan New Material Technology Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-03-04
Anticipated expiration: 2031-08-26

Abstract

The utility model discloses a novel cylindrical combined magnetic powder core, and relates to the field of reactors of magnetoelectric devices. This novel cylindrical combination magnetic powder core is provided with the wire winding protection piece including combination magnetic core body, wire winding protection piece and fixed lid, the one side of combination magnetic core body, and the side fixing clip of wire winding protection piece has fixed lid. This novel cylindrical combination magnetic powder core sets up the magnetic core body that becomes by ring-opening magnetic core and block magnetic stripe joint, rotatory two ring-opening magnetic cores become a straight line to the draw-in groove, to the direct wire-wound mode in ring-opening magnetic core both sides, make relevant winding device need not come in and go out the combination magnetic core body repeatedly and coil wire, be difficult to bump with magnetic ring inner wall, reduce the loss that causes in the production process, set up wire winding protection piece in addition, protect combination magnetic core body inner circle through inner circle protection insulation board, the effect of barrier rubber also plays simultaneously, avoid copper line surface insulation to glue the damage and appear the short circuit.

Description

Novel cylindrical combined magnetic powder core

Technical Field

The utility model relates to the technical field of reactors of magnetoelectric devices, in particular to a novel cylindrical combined magnetic powder core.

Background

The magnetic powder core is a soft magnetic material formed by mixing and pressing ferromagnetic powder particles and insulating media, and can isolate eddy current on one hand due to the characteristics of the material, so that the material is suitable for higher frequency; on the other hand, due to the gap effect among the particles, the material has low magnetic permeability and constant magnetic conductivity, and is mainly used for high-frequency inductors, and the commonly used magnetic powder cores comprise three types, namely iron powder cores, permalloy powder cores and iron-silicon-aluminum powder cores.

The calculation formula of the effective magnetic conductivity mue and the inductance of the magnetic core is as follows: μ e ═ L × 10)/4 × pi × N × a where: l is inductance value (enjoy), L is magnetic core effective magnetic path length (cm), N is the wire winding number of turns, A is magnetic core effective cross sectional area (cm), cylindrical combination magnetic core among the prior art, splice into the square form with press forming's square, get rid of unnecessary leftover bits again, corresponding cylindricality is ground into to the rethread milling machine, the magnetic core is the casting of integrated into one piece technology, many times relapse through magnetic core hollow part coiling wire when carrying out the wire winding around the magnetic core, relevant winding device probably touches the magnetic core side in the motion of alternating repeatedly many times, cause the magnetic core body damaged or crack, lead to the effective permeability of magnetic core to reduce or even directly scrap, so technical personnel in the field propose a novel cylindrical combination magnetic powder core, solve above-mentioned problem that proposes.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model discloses an intelligent heart to solve the problems in the background technology.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: a novel cylindrical combined magnetic powder core comprises:

the combined magnetic core comprises a combined magnetic core body, wherein the combined magnetic core body comprises an open-loop magnetic core, a clamping magnetic stripe, a limiting wedge block and an E-shaped magnetic block, the clamping magnetic stripe is fixedly clamped and connected to the side surface of the open-loop magnetic core, the limiting wedge block is fixedly connected to the side surface of the clamping magnetic stripe, and the E-shaped magnetic block is fixedly clamped and connected to the side surface of the open-loop magnetic core;

a winding protector disposed inside the combined magnetic core body;

and the fixing cover is fixedly clamped with the winding protection piece.

Preferably, the open-loop magnetic core comprises the cyclic annular magnetic core of two mutual rotation joints, the side of open-loop magnetic core runs through the draw-in groove of offering with block magnetic stripe looks adaptation, the block magnetic stripe passes through draw-in groove and the fixed joint of open-loop magnetic core.

Preferably, the limiting wedge block is matched with the clamping groove, and the side surface of the open-loop magnetic core is provided with a locking groove matched with the E-shaped magnetic block.

Preferably, the winding protection member includes an annular seat, an inner ring protection insulation plate, a coil spring and a rotation knob, the annular seat is disposed on one side of the combined magnetic core body, the inner ring protection insulation plate is disposed on one side of the annular seat close to the combined magnetic core body, the inner wall of the inner ring protection insulation plate is fixedly connected with the coil spring, and one end of the coil spring, far away from the inner ring protection insulation plate, is fixedly connected with the rotation knob.

Preferably, the side of the annular seat is provided with a winding slot matched with the clamping slot, the inner wall of the annular seat is fixedly connected with a fixing plate, and the rotary button penetrates through the side wall of the fixing plate and is rotatably connected with the fixing plate.

Preferably, the fixed cover comprises a bottom plate, a limiting elastic sheet and a limiting block, the bottom plate is matched with the combined magnetic core body, the limiting elastic sheet is fixedly connected to one side of the bottom plate close to the combined magnetic core body, and the limiting elastic sheet is fixedly connected to the side face of one end, far away from the bottom plate, of the limiting elastic sheet and the limiting block matched with the combined magnetic core body.

The utility model discloses a novel cylindrical combined magnetic powder core, which has the following beneficial effects:

1. this novel cylindrical combination magnetic powder core, set up cylindrical combination magnetic core circle as the complete magnetic core body that becomes by ring-opening magnetic core and block magnetic stripe joint, when rotatory two ring-opening magnetic cores that rotate to connect when the wire winding become a straight line to the draw-in groove, through to ring-opening magnetic core both sides direct wire winding and to ring-opening magnetic core internal thrust and support tight mode wire winding, make relevant winding device need not come in and go out the combination magnetic core body repeatedly and carry out the wire winding, be difficult to bump with the magnetic powder circle inner wall, reduce the loss that causes in the production process, set up wire winding in addition, protect combination magnetic core body inner circle through inner circle protection insulation board, the effect of isolation adhesive is also played simultaneously, avoid copper line surface insulation to glue the damaged short circuit of appearance.

This novel cylindrical combination magnetic powder core, the inner circle protection insulation board of connecting through the wind spring carries out collision avoidance to combination magnetic core body for inner circle protection insulation board size conveniently adjusts, makes inner circle protection insulation board laminate combination magnetic core body inner wall better, and fixed lid adopts the joint mode of spacing shell fragment and stopper, combines the arc inner wall of combination magnetic core body, can realize pressing automatic locking.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a combined magnetic core body structure according to the present invention;

FIG. 3 is a schematic view of a winding protector according to the present invention;

FIG. 4 is an enlarged view of the structure of FIG. 3 according to the present invention.

In the figure: 1. a combined magnetic core body; 101. an open-loop magnetic core; 102. clamping the magnetic strips; 103. limiting a wedge block; 104. an E-shaped magnetic block; 2. a winding protector; 201. an annular seat; 202. the inner ring protects the insulating plate; 203. a coil spring; 204. a rotation knob; 3. a fixed cover; 301. a base plate; 302. a limiting elastic sheet; 303. a limiting block; 4. a card slot; 5. a position locking groove; 6. and (7) fixing the plate.

Detailed Description

The embodiment of the utility model discloses a novel cylindrical combined magnetic powder core, which is shown in a combined figure 1 and comprises a combined magnetic core body 1, a winding protection piece 2 and a fixing cover 3, wherein the winding protection piece 2 is arranged on one side of the combined magnetic core body 1, the winding protection piece 2 penetrates through the center of the combined magnetic core body 1 and supports the combined magnetic core body 1, a supporting groove matched with the combined magnetic core body 1 is arranged on the upper surface of the winding protection piece 2, the fixing cover 3 is fixedly clamped on the side surface of the winding protection piece 2, and the fixing cover 3 and the winding protection piece 2 are mutually clamped.

Combine shown in fig. 2, combination magnetic core body 1 includes open-loop magnetic core 101, block magnetic stripe 102, spacing voussoir 103 and E type magnetic block 104, one side difference fixedly connected with turning block and the rotation groove that two open-loop magnetic cores 101 are close to each other, make two open-loop magnetic cores 101 rotate through turning block and rotation groove and connect, the fixed joint in side of open-loop magnetic core 101 has block magnetic stripe 102, the spacing voussoir 103 of side fixedly connected with of block magnetic stripe 102, make open-loop magnetic core 101 and the fixed joint of block magnetic stripe 102 through spacing voussoir 103, the fixed joint in side of open-loop magnetic core 101 has E type magnetic block 104, E type magnetic block 104 sets up between two open-loop magnetic cores 101, make two open-loop magnetic cores 101 pass through the joint of E type magnetic block 104 and spacing, two open-loop magnetic cores 101 can not rotate by spacing back.

Open-loop magnetic core 101 comprises the cyclic annular magnetic core of two mutual rotation joints, and open-loop magnetic core 101's side runs through the draw-in groove 4 of offering with block magnetic stripe 102 looks adaptation, and block magnetic stripe 102 passes through draw-in groove 4 and the fixed joint of open-loop magnetic core 101, and draw-in groove 4 runs through the side of two cyclic annular magnetic cores, and E type magnetic path 104 joint forms limiting displacement between two cyclic annular magnetic cores to both.

Spacing voussoir 103 and draw-in groove 4 looks adaptation can prevent that block magnetic stripe 102 from shifting or dropping through spacing voussoir 103 relative restriction block magnetic stripe 102's position on open-loop magnetic core 101, and the side of open-loop magnetic core 101 is seted up the position locking groove 5 with E type magnetic block 104 looks adaptation, and E type magnetic block 104 fixed joint is in position locking groove 5.

As shown in fig. 3, the winding protector 2 includes a ring-shaped seat 201, an inner ring protection insulating plate 202, a coil spring 203, and a rotation knob 204, the ring-shaped seat 201 is provided at one side of the assembled magnetic core body 1, and one side of the annular seat 201 close to the combined magnetic core body 1 is provided with a bracket matched with the combined magnetic core body 1, the bracket has the functions of limiting and positioning the combined magnetic core body 1 and reducing the vibration of the combined magnetic core body 1, one side of the annular seat 201 close to the combined magnetic core body 1 is provided with an inner ring protection insulation plate 202, the inner ring protection insulation plate 202 penetrates through the middle of the combined magnetic core body 1, the inner wall of the inner ring protection insulation plate 202 is fixedly connected with a coil spring 203, and the inner ring protection insulation plate 202 is a plastic insulation tape, the two ends of the inner ring protection insulation plate 202 are not connected with each other, so that the inner ring protection insulating plate 202 can be adjusted along with the adjustment of the coil spring 203, and one end of the coil spring 203 far away from the inner ring protection insulating plate 202 is fixedly connected with a rotating button 204.

The side of the annular seat 201 is provided with a winding groove matched with the clamping groove 4, the inner wall of the annular seat 201 is fixedly connected with a fixing plate 6, and the rotary button 204 penetrates through the side wall of the fixing plate 6 and is rotatably connected with the fixing plate 6.

When carrying out the wire winding, take off E type magnetic path 104, rotate two open-loop magnetic cores 101 and make two draw-in grooves 4 move to a straight line, adjust knob 204 and make the inner circle protection insulation board 202 laminate open-loop magnetic core 101's inner wall, carry out the wire winding motion through draw-in groove 4 department, and push the inboard according to the corresponding copper line of twining of wire winding motion, after the wire winding is ended, rotate two open-loop magnetic cores 101 and make two draw-in grooves 4 stagger each other, the position locking groove 5 of position locking groove 5 formation and E type magnetic path 104 looks adaptation that sets up between two open-loop magnetic cores 101 this moment, it is spacing to both through E type magnetic path 104, and get into draw-in groove 4 with block magnetic stripe 102 joint.

As shown in fig. 4, the fixing cover 3 includes a bottom plate 301, a limiting elastic sheet 302 and a limiting block 303, the bottom plate 301 and the combined magnetic core body 1 are adapted to each other, the bottom plate 301 is close to the limiting elastic sheet 302 of one side of the combined magnetic core body 1, and the limiting elastic sheet 302 is far away from the limiting elastic sheet 303 of the side fixedly connected with one end of the bottom plate 301 and the limiting block 303 adapted to the combined magnetic core body 1

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A novel cylindrical combined magnetic powder core is characterized by comprising:

the magnetic core comprises a combined magnetic core body (1), wherein the combined magnetic core body (1) comprises an open-loop magnetic core (101), a clamping magnetic strip (102), a limiting wedge block (103) and an E-shaped magnetic block (104), the clamping magnetic strip (102) is fixedly clamped on the side surface of the open-loop magnetic core (101), the limiting wedge block (103) is fixedly connected on the side surface of the clamping magnetic strip (102), and the E-shaped magnetic block (104) is fixedly clamped on the side surface of the open-loop magnetic core (101);

a winding protector (2), wherein the winding protector (2) is arranged on the inner side of the combined magnetic core body (1);

the fixing cover (3) is fixedly clamped with the winding protection piece (2).

2. The novel cylindrical combined magnetic powder core according to claim 1, characterized in that: open loop magnetic core (101) comprises the cyclic annular magnetic core of two mutual rotations joints, the side of open loop magnetic core (101) runs through draw-in groove (4) of seting up with block magnetic stripe (102) looks adaptation, block magnetic stripe (102) are through draw-in groove (4) and the fixed joint of open loop magnetic core (101).

3. The novel cylindrical combined magnetic powder core according to claim 1, characterized in that: the limiting wedge block (103) is matched with the clamping groove (4), and the side face of the open-loop magnetic core (101) is provided with a locking groove (5) matched with the E-shaped magnetic block (104).

4. The novel cylindrical combined magnetic powder core according to claim 1, characterized in that: the winding protection piece (2) comprises an annular seat (201), an inner ring protection insulation board (202), a coil spring (203) and a rotating button (204), wherein the annular seat (201) is arranged on one side of the combined magnetic core body (1), the inner ring protection insulation board (202) is arranged on one side, close to the combined magnetic core body (1), of the annular seat (201), the inner wall of the inner ring protection insulation board (202) is fixedly connected with the coil spring (203), and the coil spring (203) is far away from one end, fixedly connected with the rotating button (204), of the inner ring protection insulation board (202).

5. The novel cylindrical combined magnetic powder core according to claim 4, characterized in that: the side of cyclic annular seat (201) is provided with the wire winding groove with draw-in groove (4) looks adaptation, the inner wall fixedly connected with fixed plate (6) of cyclic annular seat (201), knob (204) run through the lateral wall of fixed plate (6) and rotate with fixed plate (6) and be connected.

6. The novel cylindrical combined magnetic powder core according to claim 1, characterized in that: the fixed cover (3) comprises a bottom plate (301), a limiting elastic sheet (302) and a limiting block (303), the bottom plate (301) is matched with the combined magnetic core body (1) mutually, the bottom plate (301) is close to the limiting elastic sheet (302) of one side of the combined magnetic core body (1), and the limiting elastic sheet (302) is far away from the limiting block (303) matched with the combined magnetic core body (1) and fixedly connected with the side face of one end of the bottom plate (301).