CN211428517U

CN211428517U - N-type direct current blocker

Info

Publication number: CN211428517U
Application number: CN201922353681.0U
Authority: CN
Inventors: 刘萍; 朱玉勇; 唐亚红
Original assignee: Zhenjiang Putian Electronic Co ltd
Current assignee: Zhenjiang Putian Electronic Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-09-04
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a N type direct current blocker is used for connecting public head and female head in coaxial connector's crossover sub, wherein, public head and female head are including inner conductor and the outer conductor of coaxial setting respectively, be provided with insulating medium between inner conductor and the outer conductor respectively, the interval has the cavity of setting for the distance between public head and the female head, N type direct current blocker includes the electric capacity of a plurality of setting in the cavity, and an electrode and public head of each electric capacity are connected and another electrode is connected with female head, the periphery of cavity is provided with the nylon cavity, public head is connected with the nylon cavity through two at least first screws, female head is connected with the nylon cavity through two at least second screws. The utility model discloses the product is applied to and easily forms induced-current's signal transmission line, can prevent effectively that induced-current (direct current) from to whole signal transmission line's damage. And simultaneously, the utility model discloses better electric property has.

Description

N-type direct current blocker

Technical Field

The utility model relates to a N type direct current blocker.

Background

When the N-type direct current blocker in the prior design is used in a signal transmission line which is easy to form induced current, the induced current (direct current) is easy to damage the whole signal transmission line, thereby not only affecting the electrical performance but also affecting the service life of equipment.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a N type direct current blocker is applicable to and easily forms induced-current's signal transmission line, can effectively prevent induced-current (direct current) to whole signal transmission line's damage, and electrical performance is good.

For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:

the utility model provides a public head and female head are connected to N type direct current blocker for in coaxial connector's crossover sub, wherein, public head and female head are including inner conductor and the outer conductor of coaxial setting respectively, be provided with insulating medium between inner conductor and the outer conductor respectively, the interval has the cavity of setting for the distance between public head and the female head, N type direct current blocker includes the electric capacity of a plurality of setting in the cavity, and an electrode and public first being connected and another electrode and female first being connected of each electric capacity, the periphery of cavity is provided with the nylon cavity, public head is connected with the nylon cavity through two at least first screws, female head is connected with the nylon cavity through two at least second screws.

Preferably, the male head is an N-type standard male head, and the female head is an N-type standard female head.

Preferably, the capacitor comprises a central capacitor and at least two auxiliary capacitors, the central capacitor is coaxial with the inner conductors of the male head and the female head respectively, one electrode of the central capacitor is connected with the inner conductor of the male head, and the other electrode of the central capacitor is connected with the inner conductor of the female head.

Preferably, the number of the auxiliary capacitors is 3-6, and the auxiliary capacitors are uniformly distributed on the periphery of the central capacitor.

Preferably, one electrode of each auxiliary capacitor is connected to the outer conductor of the male terminal and the other electrode of each auxiliary capacitor is connected to the outer conductor of the female terminal.

Preferably, the first screws and the second screws are uniformly distributed on the circumference of the outer conductor, and each first screw and the corresponding second screw are coaxially arranged.

Preferably, the number of the first screws, the number of the second screws and the number of the auxiliary capacitors are the same.

The utility model has the advantages that:

connect through electric capacity between inner conductor and outer conductor in coaxial connector's crossover sub respectively, the outer conductor passes through insulator (nylon cavity) again and connects, plays an isolation direct current's effect, the utility model discloses the product is applied to and easily forms induced-current's signal transmission line in, can effectively prevent induced-current (direct current) to whole signal transmission line's damage. And simultaneously, the utility model discloses better electric property has:

1. characteristic impedance: 50 Ω;

2. frequency range: 50 MHz-6 GHz;

VSWR (standing wave ratio): (50 MHz-3 GHz) < 1.15; (3 GHz-6 GHz) < 1.3;

4. inserting loss: (50MHz to 3GHz) <0.25 dB.

Drawings

Fig. 1 is a schematic structural diagram of an N-type dc blocker according to the present invention;

the reference numerals of the drawings have the following meanings:

1: an N-type standard male head; 2: an N-type standard female head; 3: a first screw; 4: a second screw; 5: an inner conductor; 6: an outer conductor; 7: an insulating medium; 8: a capacitor; 9: a nylon cavity.

Detailed Description

The technical solution of the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not limited to the present invention.

As shown in fig. 1, an N-type dc blocker is used for connecting a male connector and a female connector in a transition joint of a coaxial connector, wherein the male connector and the female connector respectively include an inner conductor 5 and an outer conductor 6 coaxially disposed, and an insulating medium 7 is respectively disposed between the inner conductor 5 and the outer conductor 6, preferably the utility model discloses in the male connector is a N-type standard male connector 1, the female connector is a N-type standard female connector 2. The insulating medium 7 may fill the cavity between the inner conductor 5 and the outer conductor 6, or as shown in fig. 1, the insulating medium 7 fills only a part of the cavity between the inner conductor 5 and the outer conductor 6, and plays a role in insulating between the inner conductor 5 and the outer conductor 6.

Public head and female coaxial setting, wherein, there is the cavity of setting for the distance at the interval between public head and the female head, and the two is not directly connected electrically, N type direct current blocker includes that a plurality of sets up electric capacity 8 in the cavity, and an electrode and public head connection and another electrode and female head of each electric capacity 8 are connected. The periphery of cavity is provided with nylon cavity 9, and nylon cavity 9 is as the insulator.

Preferably, the capacitor 8 includes a central capacitor 8 and at least two auxiliary capacitors 8, for example, the number of the auxiliary capacitors 8 is 3-6, the auxiliary capacitors are uniformly distributed on the periphery of the central capacitor 8, and the N-type direct current blocker is sequentially provided with the central capacitor, the auxiliary capacitors and the nylon cavity 9 from the center to the outside.

The central capacitor 8 is coaxial with the inner conductors 5 of the male head and the female head respectively, one electrode of the central capacitor 8 is connected with the inner conductor 5 of the male head, and the other electrode of the central capacitor 8 is connected with the inner conductor 5 of the female head. One electrode of each auxiliary capacitor 8 is connected to the outer conductor 6 of the male terminal and the other electrode of each auxiliary capacitor 8 is connected to the outer conductor 6 of the female terminal. The inner conductor and the outer conductor are connected through capacitors respectively, and the outer conductor is connected through an insulator (a nylon cavity) to play a role in isolating direct current.

The male head is connected with the nylon cavity 9 through at least two first screws 3, the female head is connected with the nylon cavity 9 through at least two second screws 4, generally, the shells of the male head and the female head are cylindrical, the first screws 3 and the second screws 4 are uniformly distributed on the circumference of the outer conductor 6, and each first screw 3 and the corresponding second screw 4 are coaxially arranged. Preferably, the number of the first screws 3, the second screws 4 and the auxiliary capacitors 8 is the same, for example, the number of the first screws 3, the second screws 4 and the auxiliary capacitors 8 is 4 that are uniformly distributed.

1. characteristic impedance: 50 Ω;

2. frequency range: 50 MHz-6 GHz;

VSWR (standing wave ratio): (50 MHz-3 GHz) < 1.15; (3 GHz-6 GHz) < 1.3;

4. inserting loss: (50MHz to 3GHz) <0.25 dB.

The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings are utilized, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. The utility model provides a public head and female head are connected to N type direct current blocker for in coaxial connector's crossover sub, wherein, public head and female head are including inner conductor (5) and outer conductor (6) of coaxial setting respectively, be provided with insulating medium (7) between inner conductor (5) and outer conductor (6) respectively, the interval has the cavity of setting for the distance between public head and the female head, a serial communication port, N type direct current blocker includes that a plurality of sets up electric capacity (8) in the cavity, and an electrode and public head of each electric capacity (8) are connected and another electrode and female head are connected, the periphery of cavity is provided with nylon cavity (9), public head is connected with nylon cavity (9) through two at least first screws (3), female head is connected with nylon cavity (9) through two at least second screws (4).

2. An N-type dc-block device according to claim 1, wherein the male head is an N-type standard male head (1) and the female head is an N-type standard female head (2).

3. An N-type dc-block circuit according to claim 2, wherein said capacitors (8) comprise a central capacitor (8) and at least two auxiliary capacitors (8), said central capacitor (8) being coaxial with the internal conductors (5) of the male and female terminals, respectively, one electrode of said central capacitor (8) being connected to the internal conductor (5) of the male terminal and the other electrode of the central capacitor (8) being connected to the internal conductor (5) of the female terminal.

4. An N-type DC-block circuit as claimed in claim 3, characterized in that the number of auxiliary capacitors (8) is 3-6, which are distributed around the periphery of the central capacitor (8).

5. An N-type DC-block circuit as claimed in claim 4, characterized in that one electrode of each auxiliary capacitor (8) is connected to the male outer conductor (6) and the other electrode of each auxiliary capacitor (8) is connected to the female outer conductor (6).

6. An N-type dc-block device according to claim 1, characterized in that the first screws (3) and the second screws (4) are evenly distributed on the circumference of the outer conductor (6), and each first screw (3) and the corresponding second screw (4) are coaxially arranged.

7. N-type DC-chopper according to claim 4, characterized in that the number of first screws (3), second screws (4) and auxiliary capacitors (8) is the same.