CN210273985U

CN210273985U - Four-pin patch type electronic filter

Info

Publication number: CN210273985U
Application number: CN201920884350.7U
Authority: CN
Inventors: 王齐龙
Original assignee: Guangzhou Rich Electronics Co Ltd
Current assignee: Guangzhou Rich Electronics Co Ltd
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-04-07
Anticipated expiration: 2029-06-12

Abstract

The utility model discloses a SMD electronic filter of four pins contains the shell, the below left side of shell is equipped with outside first input terminal and the second input terminal who stretches out, and the below right side of shell is equipped with outside first output terminal and the second output terminal who stretches out, and the inside circular shape magnetic core that is equipped with of shell, the winding has the winding on the magnetic core, the utility model discloses SMD electronic filter of four pins is integrated on a small chip with the wave filter, has two inputs and two outputs, has not only reduced the product volume, and the later stage wiring is convenient moreover.

Description

Four-pin patch type electronic filter

Technical Field

The utility model relates to a wave filter specifically is a SMD electronic filter of four pins.

Background

Filters, as the name implies, are devices that filter waves. "wave" is a very broad physical concept, and in the field of electronics, is narrowly limited to refer specifically to processes that describe the variation of values of various physical quantities over time. This process is converted into a time function of voltage or current, called time waveform of various physical quantities, or called signal, by the action of various sensors.

The existing filter is a filter circuit composed of a capacitor, an inductor and a resistor. The filter can effectively filter the frequency point of the specific frequency in the power line or the frequencies except the frequency point to obtain a power signal of the specific frequency or eliminate the power signal of the specific frequency. The existing filter has complex manufacturing mode, inconvenient use and large volume, and is not beneficial to the design and the manufacture of an integrated circuit.

This design provides a SMD electronic filter structure with four pins, has two inputs and two outputs, has not only reduced the product volume, and the later stage wiring is convenient moreover.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a SMD electronic filter of four pins to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a SMD electronic filter of four pins, contains the shell, the below left side of shell is equipped with the first input terminal and the second input terminal that outwards stretch out, and the below right side of shell is equipped with the first output terminal and the second output terminal that outwards stretch out, and the shell is inside to be equipped with the circular shape magnetic core, and the winding has the winding on the magnetic core.

As a further technical solution of the utility model: the winding is provided with four outgoing lines which are respectively connected with the first input terminal, the second input terminal, the first output terminal and the second output terminal.

As a further technical solution of the utility model: the magnetic core is an iron core.

As a further technical solution of the utility model: the winding adopts a multi-strand wire and a coupling winding structure.

As a further technical solution of the utility model: the magnetic core is fixed inside the shell through glue.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses four SMD electronic filter of pin have two inputs and two outputs with the wave filter integration on a small chip, have not only reduced the product volume, and the later stage wiring is convenient moreover.

Drawings

FIG. 1 is an internal structural view of the present invention;

FIG. 2 is an overall external view of the present invention;

fig. 3 is a side view of the present invention.

In the figure: 1-housing, 2-winding, 3-magnetic core, 4-first input terminal, 5-second input terminal, 6-first output terminal, 7-second output terminal.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.

Example 1: referring to fig. 1-3, a four-pin surface-mounted electronic filter includes a housing 1, a first input terminal 4 and a second input terminal 5 extending outward are disposed on the left side of the lower portion of the housing 1, a first output terminal 6 and a second output terminal 7 extending outward are disposed on the right side of the lower portion of the housing 1, a circular magnetic core 3 is disposed inside the housing 1, and a winding 2 is wound around the magnetic core 3. The winding 2 has four lead wires connected to a first input terminal 4, a second input terminal 5, a first output terminal 6 and a second output terminal 7, respectively. Taking fig. 1 as an example, the winding 2 is divided into two independent winding structures, namely a left winding structure and a right winding structure, wherein two ends of the left winding structure are respectively connected with the first input terminal 4 and the second input terminal 5, and two ends of the right winding structure are respectively connected with the first output terminal 6 and the second output terminal 7, so that a filter is formed inside the housing 1, and when the filter is used, the filter can be played only by connecting circuits to the corresponding first input terminal 4, the second input terminal 5, the first output terminal 6 and the second output terminal 7.

Embodiment 2, on the basis of embodiment 1, the winding 2 adopts a twisted same-direction winding structure, which is beneficial to generating high impedance for miscellaneous signals, and when the signals pass through the winding, the impedance is reduced, thus beneficial to passing useful signals.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a four pin SMD electronic filter, contains shell (1), its characterized in that, the below left side of shell (1) is equipped with first input terminal (4) and second input terminal (5) that outwards stretch out, and the below right side of shell (1) is equipped with first output terminal (6) and second output terminal (7) that outwards stretch out, and shell (1) inside is equipped with circular shape magnetic core (3), and the winding has winding (2) on magnetic core (3).

2. A four-pin patch electronic filter according to claim 1, wherein the winding (2) has four outgoing lines connected to the first input terminal (4), the second input terminal (5), the first output terminal (6) and the second output terminal (7), respectively.

3. The four-pin patch type electronic filter according to claim 1, wherein the magnetic core (3) is an iron core.

4. The four-pin patch type electronic filter according to claim 1, wherein the winding (2) adopts a multi-strand wire and coupling winding structure.

5. A four-pin patch type electronic filter according to any one of claims 1-4, wherein the magnetic core (3) is fixed inside the housing by glue.