CN209980933U

CN209980933U - Frameless resonant inductor

Info

Publication number: CN209980933U
Application number: CN201920572078.9U
Authority: CN
Inventors: 魏家乐; 潘立总; 黄巧丽
Original assignee: Zhuhai Yun Lu At Dawn New Energy Technology Co Ltd
Current assignee: Zhuhai Yun Lu At Dawn New Energy Technology Co Ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2020-01-21
Anticipated expiration: 2029-04-24

Abstract

The utility model discloses a frameless resonance inductor, which comprises a first magnetic core, a second magnetic core, a base, insulating paper and a winding, wherein the insulating paper is arranged on the base, the first magnetic core and the second magnetic core are E-shaped magnetic cores, the first magnetic core and the second magnetic core are provided with air gaps, the openings of the first magnetic core and the second magnetic core are oppositely arranged, the winding is wound on the insulating paper, and the wire inlet and outlet of the winding are fixed on pins arranged on the base; the utility model provides a resonance inductance structural design of no skeleton coiling, this design has improved the too high problem of original skeleton product temperature rise, and the base remains the pin simultaneously, has also reduced the degree of difficulty of coiling technology.

Description

Frameless resonant inductor

Technical Field

The utility model relates to an electromagnetic induction component especially relates to a no skeleton resonance inductance.

Background

The resonance inductor is an important component of a resonance circuit, the conventional resonance inductor is a PQ-type or EE-type magnetic core at present, a framework surrounds a central column of the magnetic core, and the distance between a winding and the magnetic core is too small, so that heat-conducting pouring sealant is difficult to flow into the central column of the magnetic core when a product is poured and used, the heat-radiating performance of an element is not enough to cause overhigh temperature rise, and the basic performance of the element is influenced; if the scheme of frameless winding is adopted, the manufacturing process difficulty is high, and the flying line cannot be fixed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving the heat dissipation problem of the resonance inductance mentioned to and the business turn over line fixed problem of frameless coiling, provide a frameless resonance inductance.

The utility model discloses a realize through following technical scheme:

the frameless resonant inductor is characterized by comprising a first magnetic core, a second magnetic core, a base, insulating paper and a winding, wherein the insulating paper is arranged on the base, and the winding is wound on the insulating paper.

As a further improvement of the above scheme, the base is provided with a through hole, the edge of the through hole is provided with a convex edge, and the insulating paper is wrapped on the convex edge.

As a further improvement of the scheme, the first magnetic core and the second magnetic core are oppositely arranged on two sides of the base, the center pillar of the magnetic core is positioned in the through hole of the base, and the winding is wound on the periphery of the center pillar.

As a further improvement of the above scheme, the first magnetic core and the second magnetic core are both E-shaped magnetic cores, the central columns of the first magnetic core and the second magnetic core are both provided with air gaps, and the openings of the first magnetic core and the second magnetic core are oppositely arranged.

As a further improvement of the above scheme, the second magnetic core includes a magnetic core main body, a non-ferromagnetic medium and a segmented air gap magnetic material, and the non-ferromagnetic medium and the segmented air gap magnetic material are sequentially disposed on the central pillar of the magnetic core main body from top to bottom.

As a further improvement of the above solution, the non-ferromagnetic medium is a ceramic sheet.

As a further improvement of the above, the non-ferromagnetic media and the segmented air gap magnet are bonded using an adhesive.

As a further improvement of the above aspect, a joint of the first magnetic core and the second magnetic core is fixed by an adhesive.

As a further improvement of the scheme, the base is provided with pins, and the winding inlet and outlet wires are fixed on the pins.

The beneficial effects are that: compared with the prior art, the frameless resonance inductor of the utility model utilizes the combination of the base and the insulating paper to self-manufacture the skeleton for winding, thus solving the problem of difficult frameless winding process; meanwhile, the problem of overhigh element temperature rise is solved by increasing the distance between the winding and the center pillar of the magnetic core and arranging a sectional air gap.

Drawings

The following detailed description of embodiments of the invention is provided in conjunction with the accompanying drawings, in which:

fig. 1 is a front view of the present invention;

fig. 2 is a side view of the present invention;

fig. 3 is a bottom view of the present invention;

fig. 4 is a side view of the base of the present invention;

fig. 5 is a top view of the base of the present invention;

fig. 6 is a schematic structural diagram of the magnetic core of the present invention.

Detailed Description

Referring to fig. 1, a frameless resonance inductor, including first magnetic core 1, second magnetic core 2, base 4, insulating paper 5 and winding 3, insulating paper 5 sets up on base 4, first magnetic core 1 and second magnetic core 2 are all E type magnetic cores, first

magnetic core

1 and 2 center pillars of second magnetic core have set up the air gap, the heat dispersion of component has been strengthened, first

magnetic core

1 and 2 relative base 4 both sides that set up of second magnetic core, base 4 has set up through-hole 41, the magnetic core center pillar is located through-hole 41, the bonding is glued to two arm joints department uses the point, two magnetic core surface reuse sticky tape winding circles, winding 3 coiling is in insulating paper 5 one side, the interval of winding 3 and magnetic core center pillar has been increased, the heat dispersion of product has further been promoted, winding 3 business turn over line is fixed in and sets up on base 4's pin, the business turn line fixed problem of frameless coiling has been solved.

Referring to fig. 6, the utility model discloses a magnetic core structure of segmentation air gap comprises two butt joints of E font magnetic core main part 1, be equipped with non-ferromagnetic medium 22, segmentation air gap magnetism material 23 on the center pillar of second magnetic core 2 in proper order. The segmented air gap magnet 23 is the same as the core body magnet. In the present embodiment, the plurality of layers of non-ferromagnetic media 22 and the plurality of layers of segmented air gap magnetic material 23 are disposed on the center pillar of the magnetic core main body at intervals, so the gap formed by the non-ferromagnetic media 22 is substantially the same as the air gap effect, i.e. the gap is segmented, which is called segmented air gap.

The sectional type air gap adopts the ceramic chip as non-ferromagnetic medium 22, the ceramic chip and the sectional air gap magnetic material 23 are bonded into a whole through the heat-conducting epoxy glue, a heat-conducting path is formed and is bonded on the magnetic core center pillar of the second magnetic core 2, the heat conductivity coefficient of the ceramic chip is high, and the improvement of the heat dissipation performance is facilitated.

Referring to fig. 4, the base 4 is further provided with a convex edge 42, the insulating paper 5 wraps the convex edge 42, and the insulating paper 5 isolates the winding 3 from the base 4, so that the phenomenon of electric leakage of a product in the using process can be prevented, and safety protection is provided.

The above embodiments are limited to the technical solutions of the embodiments themselves, and the embodiments may be combined with each other to form a new embodiment. The above embodiments are only used for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of the technical solutions of the present invention.

Claims

1. The utility model provides a no skeleton resonance inductance, its characterized in that, resonance inductance includes first magnetic core (1), second magnetic core (2), base (4), insulating paper (5) and winding (3), insulating paper (5) set up on base (4), winding (3) coiling is on insulating paper (5).

2. The frameless resonant inductor according to claim 1, wherein the base (4) is provided with a through hole (41), the edge of the through hole is provided with a convex edge (42), and the insulating paper (5) is wrapped on the convex edge (42).

3. The frameless resonant inductor according to claim 1, wherein the first magnetic core (1) and the second magnetic core (2) are oppositely disposed on two sides of the base (4), the central pillar of the magnetic core is located in the through hole (41) of the base (4), and the winding (3) is wound around the central pillar of the magnetic core.

4. The frameless resonant inductor according to claim 1, wherein the first magnetic core (1) and the second magnetic core (2) are E-shaped magnetic cores, the central pillars of the first magnetic core (1) and the second magnetic core (2) are provided with air gaps, and the openings of the first magnetic core (1) and the second magnetic core (2) are oppositely arranged.

5. The frameless resonant inductor according to claim 4, wherein the second magnetic core (2) comprises a main magnetic core body (21), a non-ferromagnetic medium (22) and a segmented air-gap magnetic material (23), and the non-ferromagnetic medium (22) and the segmented air-gap magnetic material (23) are sequentially disposed on a central pillar of the main magnetic core body (21) from top to bottom.

6. The frameless resonant inductor according to claim 5, characterized in that the non-ferromagnetic medium (22) is a ceramic plate.

7. The frameless resonant inductor according to claim 5, wherein the non-ferromagnetic medium (22) and the segmented air gap magnet (23) are bonded using an adhesive.

8. The frameless resonant inductor according to claim 3, wherein the joint of the first core (1) and the second core (2) is fixed by an adhesive.

9. The frameless resonant inductor according to claim 1, wherein the base (4) is provided with pins to which the wires of the winding (3) are fixed.