CN202334280U

CN202334280U - Simple direct current power filter

Info

Publication number: CN202334280U
Application number: CN2011204637203U
Authority: CN
Inventors: 盛杰; 刘家沛; 赵健恺
Original assignee: Chengdu Bikong Science and Technology Co Ltd
Current assignee: Chengdu Bikong Science and Technology Co Ltd
Priority date: 2011-11-21
Filing date: 2011-11-21
Publication date: 2012-07-11
Anticipated expiration: 2021-11-21

Abstract

The utility model discloses a simple direct current power filter, which comprises an input end and an output end, wherein the input end comprises a first positive electrode input end, a second positive electrode input end and a negative electrode input end; the output end comprises a first positive electrode output end, a second positive electrode output end and a negative electrode output end; a first inductor is connected between the first positive electrode input end and the first positive electrode output end; a third inductor is connected between the second positive electrode input end and the second positive electrode output end; a second inductor is connected between the negative electrode input end and the negative electrode output end; a first capacitor is connected between the first positive electrode output end and the negative electrode output end; and a second capacitor is connected between the second positive electrode output end and the negative electrode output end. By optimizing an inner network and reducing the number of elements, the simple direct current power filter has high compatibility, high isolation property, a small volume and light weight, and is convenient to carry and use.

Description

Simple and easy DC wave filter

Technical field

The utility model relates to a kind of DC wave filter, relates in particular to that a kind of compatibility is strong, isolation good and the simple and easy DC wave filter of small and light.

Background technology

Power-supply filter; Have another name called " power supply electromagnetic interface filter "; Or " EMI power-supply filter ", be a kind of passive bidirectional network, be a kind of electric equipment that the frequency or the frequency beyond this frequency of CF in the power supply are carried out effective filtering; Its end is to connect power supply, and the other end is to connect load.Existing DC wave filter is because the impedance matching of its inner filter network is bad, causes that Electro Magnetic Compatibility is not high, isolation is relatively poor; In addition, the existing power supply filter makes the overall filter volume bigger because inner member is more, and quality is heavier, is unfavorable for carrying and using of filter.

Summary of the invention

A kind of compatibility is strong, isolation good and the simple and easy DC wave filter of small and light with regard to being to provide in order to address the above problem for the purpose of the utility model.

The utility model is realized above-mentioned purpose through following technical scheme:

The utility model comprises input and output; Said input comprises first electrode input end, second electrode input end and negative input; Said output comprises first cathode output end, second cathode output end and cathode output end; Be connected with first inductance between said first electrode input end and said first cathode output end; Be connected with the 3rd inductance between said second electrode input end and said second cathode output end, be connected with second inductance between said negative input and the said cathode output end; Be connected with first electric capacity between said first cathode output end and the said cathode output end, be connected with second electric capacity between said second cathode output end and the said cathode output end.

Further; Said input also comprises the first subsequent use input and the second subsequent use input; Said output also comprises the first subsequent use output and the second subsequent use output; The said first subsequent use input is connected with the said first subsequent use output, and the said second subsequent use input is connected with the said second subsequent use output.

As preferably, the input of said filter and output all place the top of said filter body.

Further, the below of said filter body is provided with motor.

The beneficial effect of the utility model is:

The utility model is through optimizing internal network, simplifying element, make its compatible strong, isolation is good and small and light, and is easy to carry and use.

Description of drawings

Fig. 1 is the front view of the simple and easy DC wave filter of the utility model;

Fig. 2 is the vertical view of the simple and easy DC wave filter of the utility model;

Fig. 3 is the internal circuit configuration sketch map of the simple and easy DC wave filter of the utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model is described further:

As shown in Figure 3; The input of the utility model comprises the first electrode input end A, the second electrode input end D and negative input B; Output comprises the first cathode output end A1, the second cathode output end D1 and cathode output end B1; Be connected with between first inductance L, 1, the second electrode input end D and the second cathode output end D1 between the first electrode input end A and the first cathode output end A1 and be connected with the 3rd inductance L 3, be connected with second inductance L 2 between negative input B and the cathode output end B1; Be connected with the first electric capacity L1 between the first cathode output end A1 and the cathode output end B1, be connected with second capacitor C 2 between the second cathode output end D1 and the cathode output end B1.

As shown in Figure 3; Input also comprises the first subsequent use input E and the second subsequent use input F; Output also comprises the first subsequent use output E1 and the second subsequent use output F1, and the first subsequent use input E is connected with the first subsequent use output E1, and the second subsequent use input F is connected with the second subsequent use output F1.

As depicted in figs. 1 and 2, the input 1 and the output 2 of filter all places the top of filter body 3; The below of filter body 3 is provided with motor 4.

Claims

1. simple and easy DC wave filter; Comprise input and output; It is characterized in that: said input comprises first electrode input end, second electrode input end and negative input; Said output comprises first cathode output end, second cathode output end and cathode output end; Be connected with first inductance between said first electrode input end and said first cathode output end, be connected with the 3rd inductance between said second electrode input end and said second cathode output end, be connected with second inductance between said negative input and the said cathode output end; Be connected with first electric capacity between said first cathode output end and the said cathode output end, be connected with second electric capacity between said second cathode output end and the said cathode output end.

2. simple and easy DC wave filter according to claim 1; It is characterized in that: said input also comprises the first subsequent use input and the second subsequent use input; Said output also comprises the first subsequent use output and the second subsequent use output; The said first subsequent use input is connected with the said first subsequent use output, and the said second subsequent use input is connected with the said second subsequent use output.

3. simple and easy DC wave filter according to claim 1 is characterized in that: the input of said filter and output all place the top of said filter body.

4. simple and easy DC wave filter according to claim 1 is characterized in that: the below of said filter body is provided with motor.