CN212848003U

CN212848003U - Radio frequency inductor based on honeycomb winding method

Info

Publication number: CN212848003U
Application number: CN202022155228.1U
Authority: CN
Inventors: 郭晓健
Original assignee: Dongguan Taisi Electromagnetic Components Co ltd
Current assignee: Dongguan Taisi Electromagnetic Components Co ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-03-30
Anticipated expiration: 2030-09-27

Abstract

The utility model discloses a radio frequency inductor based on honeycomb winding method, which comprises a winding bracket and a plurality of coils; insulation columns are fixed at two ends of the winding support, and wiring terminals are fixed on the two insulation columns; the plurality of coils are sleeved on the winding support and are arranged along the axial interval of the winding support, the plurality of coils are sequentially connected in series, each coil is a coil formed by winding in a honeycomb winding method, and the coils at the two ends of the winding support are respectively connected with the corresponding wiring terminals in a conduction mode. The COIL is formed by winding through a honeycomb winding method and is matched with a plurality of COIL sleeves to be arranged on the winding support in series connection, so that the structural design is reasonable, COIL S-F test is carried out under the test condition of 10KHz @1Vac, the test inductance can reach 2.5mH +/-0.1, the inductance is large, COIL1-DCR is carried out under the test condition that RH is less than 70% at 25 ℃, the test value is 25 omega Ref, the impedance is high, the whole electrical property is good, and the use requirement is met.

Description

Radio frequency inductor based on honeycomb winding method

Technical Field

The utility model belongs to the technical field of the inductance technique and specifically relates to indicate a radio frequency inductance based on honeycomb is around method.

Background

Inductance generally refers to an inductor. An Inductor (Inductor) is a component that can convert electrical energy into magnetic energy for storage. The inductor is similar in structure to a transformer, but has only one winding. The inductor has an inductance that only impedes the change in current. If the inductor is in a state where no current is passing, it will try to block the current from flowing through it when the circuit is on; if the inductor is in a current passing state, the inductor will try to keep the current unchanged when the circuit is opened. Inductors are also known as chokes, reactors, dynamic reactors.

The current radio frequency inductor has a small inductance value and low impedance due to unreasonable structural design, and cannot meet the use requirement. Therefore, there is a need for an improvement in the current rf inductors.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a radio frequency inductor based on honeycomb winding method, which can effectively solve the problems of small inductance and low impedance caused by unreasonable structure design.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a radio frequency inductor based on a honeycomb winding method comprises a winding bracket and a plurality of coils; insulation columns are fixed at two ends of the winding support, and wiring terminals are fixed on the two insulation columns; the plurality of coils are sleeved on the winding support and are arranged along the axial interval of the winding support, the plurality of coils are sequentially connected in series, each coil is a coil formed by winding in a honeycomb winding method, and the coils at the two ends of the winding support are respectively connected with the corresponding wiring terminals in a conduction mode.

As a preferred scheme, the winding bracket is a hollow ceramic insulating rod, the outer diameter of the winding bracket is 6.35mm, the winding bracket is provided with an inner hole, and the two insulating columns are respectively plugged into two ends of the inner hole and fixed through glue.

Preferably, the insulating column is made of POM material, the grounding terminal is inserted into the fixing hole of the insulating column, and the inner end of the grounding terminal is fixed with the insulating column by adding tin.

As a preferred scheme, the distance between two adjacent coils is 1.8-2.0mm, the width is less than 3mm, each coil is formed by winding through a honeycomb 2-fold point winding method, two ends of a winding support are left empty and evenly distributed, and a plurality of coils are evenly distributed in the middle.

Preferably, the transition line of each coil is fixed by epoxy glue, the outgoing line is 20mm long, and the tail end is soldered by 5-8 mm.

Preferably, the plurality of coils are wound in the same direction, and each coil is made of a 0.17mm 2UEW/F self-adhesive wire.

Preferably, the number of the coils is four, and the number of turns of each coil is 128, and the total number of turns is 512.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:

the COIL is formed by winding through a honeycomb winding method and is matched with a plurality of COIL sleeves to be arranged on the winding support in series connection, so that the structural design is reasonable, COIL S-F test is carried out under the test condition of 10KHz @1Vac, the test inductance can reach 2.5mH +/-0.1, the inductance is large, COIL1-DCR is carried out under the test condition that RH is less than 70% at 25 ℃, the test value is 25 omega Ref, the impedance is high, the whole electrical property is good, and the use requirement is met.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a front view, partially in section, of a preferred embodiment of the present invention;

FIG. 2 is a partially assembled front view of the preferred embodiment of the present invention;

fig. 3 is a front view of the terminal of the preferred embodiment of the present invention;

fig. 4 is an electrical schematic diagram of a preferred embodiment of the present invention.

The attached drawings indicate the following:

10. winding support 11, inner hole

20. Coil 21, transition line

22. Lead wire 30 and insulating column

31. Fixing hole 40 and connecting terminal

50. And tin.

Detailed Description

Referring to fig. 1 to 4, a specific structure of a preferred embodiment of the present invention is shown, which includes a winding frame 10 and a plurality of coils 20.

Both ends of this wire winding support 10 all are fixed with insulating cylinder 30, are fixed with binding post 40 on two insulating cylinders 30, in this embodiment, wire winding support 10 is hollow ceramic insulation stick, and its external diameter is 6.35mm, and it has an inner hole 11, and this two insulating cylinders 30 are filled in the both ends of inner hole 11 respectively and are fixed through glue, insulating cylinder 30 is the POM material, and this ground terminal 40 inserts in insulating cylinder 30's fixed orifices 31, and ground terminal 40's the inner is fixed with insulating cylinder 30 through adding tin 50, and this ground terminal 40 is the tinned copper needle, and the external diameter is 0.8mm, and length is 25mm, and ground terminal 40 bends into the shape of falling L.

The plurality of coils 20 are sleeved on the winding support 10 and are arranged at intervals along the axial direction of the winding support 10, the plurality of coils 20 are sequentially connected in series, each coil 20 is a coil formed by winding through a honeycomb winding method, and the coils 20 at two ends of the winding support 10 are respectively connected with the corresponding wiring terminals 40 in a conduction mode. In this embodiment, the distance between two adjacent coils 20 is 1.8-2.0mm, the width is less than 3mm, each coil 20 is formed by winding through honeycomb 2-fold point winding, the two ends of the winding support 10 are left empty and equally divided, and the plurality of coils 20 are uniformly distributed in the center; the transition line 21 of each coil 20 is fixed by epoxy glue, the lead-out line 22 is left 20mm long, and the tail end is soldered by 5-8 mm; the winding directions of the coils 20 are the same, and each coil 20 adopts a UEW/F self-adhesive wire with the diameter of 0.17mm 2; in addition, the number of the coils 20 is four, the number of turns of each coil 20 is 128, the total number of turns is 512, the inductance value is preferably ensured to be 2.5mH +/-0.1, and the number of turns can be adjusted.

Detailed description the assembly process of this embodiment is as follows:

firstly, taking a winding support 10, winding each coil 20 on the winding support 10 to enable each coil 20 to be connected in series, and fixing a transition line 21 of each coil 20 by epoxy glue; inserting the connection terminal 40 into the fixing hole 31 of the insulation column 30, and fixing the connection terminal 40 and the insulation column 30 by adding tin 50; and then, dispensing a circle of epoxy resin glue at the inner parts of the two ends of the inner hole 11 of the winding bracket 10, inserting the insulating column 30 into the inner hole 11, and after the glue is completely cured, winding the outgoing line 22 on the wiring terminal 40 and soldering the lead to fix the lead.

When the testing device is used, the two connecting terminals 40 are respectively connected with an external circuit in a conduction mode, tests show that the testing device can carry out COIL S-F testing under the testing condition of 10KHz @1Vac, the testing inductance value can reach 2.5mH +/-0.1, COIL1-DCR is carried out under the testing condition that RH is less than 70% at 25 ℃, the testing value is 25 omega Ref, and the overall electrical property is good.

The utility model discloses a design focus lies in: the COIL is formed by winding through a honeycomb winding method and is matched with a plurality of COIL sleeves to be arranged on the winding support in series connection, so that the structural design is reasonable, COIL S-F test is carried out under the test condition of 10KHz @1Vac, the test inductance can reach 2.5mH +/-0.1, the inductance is large, COIL1-DCR is carried out under the test condition that RH is less than 70% at 25 ℃, the test value is 25 omega Ref, the impedance is high, the whole electrical property is good, and the use requirement is met.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. A radio frequency inductance based on honeycomb winding method is characterized in that: comprises a winding bracket and a plurality of coils; insulation columns are fixed at two ends of the winding support, and wiring terminals are fixed on the two insulation columns; the plurality of coils are sleeved on the winding support and are arranged along the axial interval of the winding support, the plurality of coils are sequentially connected in series, each coil is a coil formed by winding in a honeycomb winding method, and the coils at the two ends of the winding support are respectively connected with the corresponding wiring terminals in a conduction mode.

2. The honeycomb winding based radio frequency inductor of claim 1, wherein: the wire winding support is a hollow ceramic insulating rod, the outer diameter of the wire winding support is 6.35mm, the wire winding support is provided with an inner hole, and the two insulating columns are respectively plugged into two ends of the inner hole and fixed through glue.

3. The honeycomb winding based radio frequency inductor of claim 1, wherein: the insulating column is made of POM materials, the grounding terminal is inserted into the fixing hole of the insulating column, and the inner end of the grounding terminal is fixed with the insulating column through tin adding.

4. The honeycomb winding based radio frequency inductor of claim 1, wherein: the space between two adjacent coils is 1.8-2.0mm, the width is less than 3mm, each coil is formed by winding through a honeycomb 2-fold point winding method, two ends of the winding support are left empty and evenly distributed, and a plurality of coils are evenly distributed in the middle.

5. The honeycomb winding based radio frequency inductor of claim 1, wherein: the transition line of each coil is fixed by epoxy glue, the outgoing line is 20mm long, and the tail end is soldered with 5-8 mm.

6. The honeycomb winding based radio frequency inductor of claim 1, wherein: the winding directions of the coils are the same, and each coil adopts a 0.17mm 2UEW/F self-adhesive wire.

7. The honeycomb winding based radio frequency inductor of claim 1, wherein: the number of the coils is four, the number of turns of each coil is 128, and the total number of turns is 512.