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Inductance element and its preparation process

A technology for inductive components and outer layers, which is applied in the field of inductive components and its preparation process, can solve the problems of high requirements for magnetic core and coil materials, unsafe use of magnetic cores, and high requirements for compressive resistance of magnetic cores, achieving high pressure resistance, Low pressure resistance, solve the effect of inductance disconnection and no inductance

Active Publication Date: 2017-07-07
CHANGXING HEXING ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing inductive elements are generally made of insulating sleeves outside the inner body composed of magnetic cores, coils and pins. The magnetic cores at the top and bottom of this inductive element are exposed to the external environment. This part It is not safe to use the magnetic core exposed to the outside world, and it may cause the problem of inductive disconnection
At the same time, the existing inductance components have high requirements for the compression resistance of the magnetic core, so the material requirements for the magnetic core and coil are also high

Method used

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  • Inductance element and its preparation process
  • Inductance element and its preparation process
  • Inductance element and its preparation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] see figure 2 , the outer protective layer 200 in this embodiment is a wax layer 210 and an epoxy layer 220 arranged sequentially from the inside to the outside, and the wax layer 210 is coated on the magnetic core 110 and / or the coil 120 and part of the leads. On the outer side of the foot 130 , the epoxy layer 220 is coated on the outer side of the wax layer 210 .

[0044] The pin 130 in this embodiment is partially covered in the outer protective layer.

[0045] The preparation process of the inductance element of the present embodiment comprises the following steps:

[0046] S100: Manufacture the magnetic core to obtain the magnetic core; the manufacturing process of the magnetic core is an existing technology, and this embodiment will not repeat it. It should be noted that the preparation process of this embodiment is applicable to inductance elements of magnetic cores of various shapes;

[0047] S200: Winding, winding a metal wire around the magnetic core; the m...

Embodiment 2

[0065] see image 3 , the outer protective layer 300 in this embodiment is a silicone oil layer 310 , a wax layer 320 and an epoxy layer 330 arranged sequentially from the inside to the outside, and the silicone oil layer 310 is tightly coated on the magnetic core 110 of the inner body 100 And on the coil 120 and part of the pin 130.

[0066] The innermost silicone oil layer of the outer protective layer in this embodiment is tightly coated on the outside of the magnetic core, coil and some pins, then the wax layer is coated on the outside of the silicone oil layer, and then the epoxy layer is coated on the wax layer outside. Setting the silicone oil layer can prevent the epoxy powder from adhering to the pins during the subsequent formation of the epoxy layer, thereby affecting the conductivity of the inductance element; setting the wax layer can ensure that the epoxy powder in the subsequent preparation of the epoxy layer can be well Adsorption, on the other hand, the wax ...

Embodiment 3

[0083] see Figure 4 , the outer protective layer 400 in this embodiment includes a first protective layer 410 wrapped on the outside of the coil 110 and / or the magnetic core 120 and a first protective layer 410 wrapped on the pin 130 and the magnetic core 110 The second protective layer 420 outside the connection end 131 and the pin 130;

[0084] Wherein the first protective layer 410 includes a wax layer 411 and an epoxy layer 412 arranged in sequence from the inside to the outside, the wax layer 411 is coated on the outside of the magnetic core 110 and / or the coil 120, the ring The oxygen layer 412 is coated on the outside of the wax layer 144;

[0085] The second protective layer 420 includes a silicone oil layer 421, a wax layer 422 and an epoxy layer 423 arranged sequentially from the inside to the outside, and the silicone oil layer 421 tightly covers the connection end of the pin and the magnetic core and / or or part on the pins.

[0086] The difference between the o...

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Abstract

The invention provides an inductance element and its preparation process, comprising an inner layer main body and an outer layer protective layer, the outer layer protective layer is combined with the inner layer main body by overmolding; the inner layer main body It includes a magnetic core, a coil and a pin; the magnetic core and the coil are completely wrapped in the outer protective layer, and the connection end of the pin and the magnetic core is wrapped in the outer protective layer In the layer, the free ends of the pins protrude from the outer protective layer. In the inductance element of the present invention, the magnetic core and the coil are all wrapped in the outer protective layer, which is safe to use and simultaneously solves the problem of inductive disconnection without inductance; moreover, the outer protective layer of the inductive element of the present invention is composed of multiple layers Composition, high voltage resistance, more suitable for the needs of modern LED development.

Description

technical field [0001] The invention relates to the field of inductance, in particular to an inductance element with higher withstand voltage performance and a preparation process thereof. Background technique [0002] The inductance component is a component that can convert electrical energy into magnetic energy and store it. It is one of the three basic components. It is mainly used in electronic circuits for filtering, oscillation, delay, notch, etc., as well as screening signals, Filtering noise, stabilizing current and suppressing electromagnetic wave interference, etc., are anti-interference components. It is represented by the letter "L" in the circuit. [0003] Existing inductive elements are generally made of insulating sleeves outside the inner body composed of magnetic cores, coils and pins. The magnetic cores at the top and bottom of this inductive element are exposed to the external environment. This part The magnetic core exposed to the outside world is not s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F17/04H01F27/00H01F27/29H01F41/00
Inventor 王杰
Owner CHANGXING HEXING ELECTRONICS
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