CN205789374U - A kind of combination type filter inductance - Google Patents

A kind of combination type filter inductance Download PDF

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Publication number
CN205789374U
CN205789374U CN201620784069.2U CN201620784069U CN205789374U CN 205789374 U CN205789374 U CN 205789374U CN 201620784069 U CN201620784069 U CN 201620784069U CN 205789374 U CN205789374 U CN 205789374U
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CN
China
Prior art keywords
filter inductance
combination type
type filter
pcb substrate
magnetic core
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Application number
CN201620784069.2U
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Chinese (zh)
Inventor
张洪伟
雷丽
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SHENZHEN HONGTAIDA INDUSTRY CO LTD
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SHENZHEN HONGTAIDA INDUSTRY CO LTD
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Priority to CN201620784069.2U priority Critical patent/CN205789374U/en
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Abstract

The utility model discloses a kind of combination type filter inductance, including PCB substrate, PCB substrate upper end is provided with many secondary magnetic cores, many secondary magnetic cores are provided with two groups of coils in every secondary magnetic core, being additionally provided with an electric capacity between described PCB substrate and many secondary magnetic cores, described coil and electric capacity are all connected with PCB substrate.This utility model simple in construction, reasonable in design, it is possible to reduce the components and parts used, and reduce the package area of filter inductance, it is achieved the miniaturization of product and low cost demand.

Description

A kind of combination type filter inductance
Technical field
This utility model relates to a kind of filter inductance, belongs to magnetic induction apparatus field, more particularly to one combination Formula filter inductance.
Background technology
Filter inductance typically uses Ferrite Material, and it can combine with feedthrough capacitor easily, forms composite filter Ripple device, in high performance filter, is also adopted by line around inductance.
Present filter inductance is for meeting use demand, and product size demand is more and more less, and cost requirement is more and more lower, In the past under the restriction of structure and component number, the size of filter inductance cannot meet the demand of product, therefore, and we Need the novel filter inductance that design cost is low, volume is little.
Utility model content
This utility model overcomes the deficiencies in the prior art, it is provided that a kind of combination type filter inductance, solves conventional Filter inductance cost technical problem high, bulky.
For solving above-mentioned technical problem, this utility model by the following technical solutions:
A kind of combination type filter inductance, including PCB substrate, PCB substrate upper end is provided with many secondary magnetic cores, every in many secondary magnetic cores Be provided with two groups of coils in secondary magnetic core, between described PCB substrate and many secondary magnetic cores, be additionally provided with an electric capacity, described coil and Electric capacity is all connected with PCB substrate.
Preferably, described magnetic core is made up of two unibody magnetic core being oppositely arranged.
Preferably, described unibody magnetic core includes that a square core plate, square core plate same side are provided with two lines The fixing post of circle, is additionally provided with electric capacity installation gap in the middle part of described square core plate lower end.
Preferably, post fixed by described coil is flat key structure.
Preferably, described coil and electric capacity all weld with PCB substrate.
Preferably, described coil uses flat wire coiling to form.
Preferably, described magnetic core is provided with two pairs altogether.
Preferably, this combination type filter inductance also includes four pins running through PCB substrate.
Preferably, described pin is made up of the red copper of surface gold-plating.
Compared with prior art, the beneficial effects of the utility model are: this utility model simple in construction, reasonable in design, energy Enough components and parts reducing use, and reduce the package area of filter inductance, it is achieved the miniaturization of product and low cost demand.
Accompanying drawing explanation
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is decomposition texture schematic diagram of the present utility model;
Fig. 2 is structural perspective of the present utility model;
Fig. 3 is front view of the present utility model;
Fig. 4 is side view of the present utility model;
Fig. 5 is the structural representation of unibody magnetic core of the present utility model;
Fig. 6 is the structural representation of this utility model coil;
Label in figure is expressed as: 1, pin;2, PCB substrate;3, magnetic core;4, electric capacity;5, coil;6, coil is fixed Post;7, square core plate;8, electric capacity installation gap.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.Embodiment of the present utility model includes but does not limits In the following example.
As shown in figs 1 to 6, a kind of combination type filter inductance, including PCB substrate 2, it is secondary that PCB substrate 2 upper end is provided with two Magnetic core 3, is provided with two groups of coils 5, also sets between described PCB substrate and two secondary magnetic cores 3 in every secondary magnetic core 3 in two secondary magnetic cores 3 Being equipped with an electric capacity 4, described coil 5 and electric capacity 4 are all connected with PCB substrate 2;Described magnetic core 3 is by two monomers being oppositely arranged Magnetic core forms;It is solid that described unibody magnetic core includes that a square core plate 7, square core plate 7 same side are provided with two coils Fixed column 6, is additionally provided with electric capacity installation gap 8 in the middle part of described square core plate 7 lower end;Described coil fixes post 6 for flat key structure; Described coil 5 and electric capacity 4 all weld with PCB substrate 2;Described coil 5 uses flat wire coiling to form;This combination type filter inductance Also include four pins 1 running through PCB substrate 2;Described pin 1 is made up of the red copper of surface gold-plating.
It is provided with two groups of coils 5, altogether four groups of coils in the present embodiment often secondary magnetic core 3, and plus an electric capacity 4, i.e. The function of four inductance can be realized, four inductance and PCB substrate 2 are welded and becomes components and parts, thus reduce the unit of use Device, and reduce the package area of filter inductance so that package area only has the 60% of independent entry device, it is achieved that product little Type and low cost demand.
The present embodiment electric capacity installation gap 8 is used for installing electric capacity 4, easy to loading and unloading.Post 6 fixed by coil is flat key structure, then The Cutting Length of magnetic induction line can be increased, improve magnetic induction effect.
The present embodiment coil 5 uses flat wire coiling to form, and can effectively reduce the impact of the product loss of Kelvin effect, This structure can realize higher operating frequency.
The pin 1 of the present embodiment uses as client's upper substrate, does not affect product function, and the purpose of increase can for client Above SMD automatic placement machine, production efficiency is higher.
It is embodiment of the present utility model as mentioned above.It is described previously for each preferred embodiment of the present utility model, Preferred implementation in each preferred embodiment if not the most contradictory or premised on a certain preferred implementation, Each preferred implementation can arbitrarily stack combinations use, the design parameter in described embodiment and embodiment be only for Understand the utility model proof procedure of statement utility model people, and be not used to limit scope of patent protection of the present utility model, Scope of patent protection of the present utility model is still as the criterion with its claims, every utilization description of the present utility model and attached The equivalent structure change that figure content is made, in like manner should be included in protection domain of the present utility model.

Claims (9)

1. a combination type filter inductance, including PCB substrate, it is characterised in that: PCB substrate upper end is provided with many secondary magnetic cores, many Secondary magnetic core is provided with in every secondary magnetic core two groups of coils, between described PCB substrate and many secondary magnetic cores, is additionally provided with an electric capacity, Described coil and electric capacity are all connected with PCB substrate.
A kind of combination type filter inductance the most according to claim 1, it is characterised in that: described magnetic core is oppositely arranged by two Unibody magnetic core composition.
A kind of combination type filter inductance the most according to claim 2, it is characterised in that: described unibody magnetic core includes a side Shape coreplane, square core plate same side is provided with two coils and fixes post, also sets up in the middle part of described square core plate lower end There is electric capacity installation gap.
A kind of combination type filter inductance the most according to claim 2, it is characterised in that: post fixed by described coil is flat key knot Structure.
A kind of combination type filter inductance the most according to claim 1, it is characterised in that: described coil and electric capacity are all and PCB Substrate welds.
A kind of combination type filter inductance the most according to claim 1, it is characterised in that: described coil uses flat wire coiling Form.
7. according to a kind of combination type filter inductance according to any one of claim 1-6, it is characterised in that: described magnetic core sets altogether It is equipped with two secondary.
8. according to a kind of combination type filter inductance according to any one of claim 1-6, it is characterised in that: this combination type filters Inductance also includes four pins running through PCB substrate.
A kind of combination type filter inductance the most according to claim 8, it is characterised in that: described pin is by the purple of surface gold-plating Copper becomes.
CN201620784069.2U 2016-07-22 2016-07-22 A kind of combination type filter inductance Active CN205789374U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620784069.2U CN205789374U (en) 2016-07-22 2016-07-22 A kind of combination type filter inductance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620784069.2U CN205789374U (en) 2016-07-22 2016-07-22 A kind of combination type filter inductance

Publications (1)

Publication Number Publication Date
CN205789374U true CN205789374U (en) 2016-12-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620784069.2U Active CN205789374U (en) 2016-07-22 2016-07-22 A kind of combination type filter inductance

Country Status (1)

Country Link
CN (1) CN205789374U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111029095A (en) * 2019-12-26 2020-04-17 杭州普晶电子科技有限公司 Integrated integrated filter inductor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111029095A (en) * 2019-12-26 2020-04-17 杭州普晶电子科技有限公司 Integrated integrated filter inductor

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