KR101701955B1

KR101701955B1 - Power connection apparatus for radio unit

Info

Publication number: KR101701955B1
Application number: KR1020150067417A
Authority: KR
Inventors: 최성욱
Original assignee: (주)엠에스전자
Priority date: 2015-05-14
Filing date: 2015-05-14
Publication date: 2017-02-03
Also published as: KR20160134038A

Abstract

A power connection unit for a radio unit according to the present invention installed in a radio unit for receiving power from a digital unit connected to a base station is installed on a circuit board of the radio unit and has an insertion groove formed therein And a receptacle in which one side is exposed to the outside of the case and is coupled to the power supply plug and the other side is extended to the inside of the case and inserted into the insertion groove to be energized with the board connecting portion, It is possible to simplify the process of electrically connecting the digital unit and the radio unit, thereby reducing the labor cost and shortening the process time and improving the process efficiency.

Description

[0001] POWER CONNECTION APPARATUS FOR RADIO UNIT [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power source connection device for a radio unit, and more particularly to a power source connection device for a radio unit for electrically connecting to a digital unit to supply power from the digital unit of the base station to the radio unit.

A separate base station system is a type of base station in which one or more digital units for digital signal processing and one or more radio units for processing a radio signal are installed separately. The digital unit is a digital signal processing portion of the base station, and may be constituted by a channel card for encrypting and decrypting the digital signal. The radio unit is a radio signal processing unit of the base station. The radio unit may include an RF amplifier and a converter for converting a digital signal received from the digital unit into a radio frequency and transmitting and receiving the digital signal to and from the antenna. Such a detached base station system has advantages in that it can reduce the installation cost of the base station compared to the conventional base station system, is easy to manage, and is environmentally friendly.

On the other hand, in order to operate the radio unit, power for driving the radio unit must be supplied, and power for operating the radio unit can be supplied from the digital unit.

Therefore, between the radio unit and the digital unit, there are constituted elements for electrically connecting the two units such as a cable drawn out from the digital unit, a plug installed at the end of the cable, a socket provided in the radio unit, .

Particularly, a radio unit includes a circuit board for driving a radio unit. In the related art, a wire is disposed between a circuit board and a socket, and a terminal of the circuit board and a terminal of the socket are respectively soldered and fixed. The socket is electrically connected.

Accordingly, the process of electrically connecting the radio unit and the digital unit must be performed by a skilled worker and unnecessary time is required for the process of electrically connecting the radio unit and the digital unit, thereby lowering the process efficiency .

Korea Patent Publication No. 2014-0039991 (published on April 04, 2010)

It is an object of the present invention to provide a power connecting device for a radio unit which can easily electrically connect a plug of a radio unit and a circuit connected to a digital unit to a power supply provided from a digital unit to a radio unit.

A power connection unit for a radio unit according to the present invention installed in a radio unit for receiving power from a digital unit connected to a base station is installed on a circuit board of the radio unit and has an insertion groove formed therein And a receptacle having one side exposed to the outside of the case and coupled to the power supply plug and the other side extending into the case and inserted into the insertion groove to be electrically connected to the substrate connection part.

The outer shape of the other side of the receptacle is vertically or horizontally asymmetrical, and the board connecting portion may have an insertion groove corresponding to the outer shape of the socket.

Alignment protrusions may protrude from the outer surface of the other side of the receptacle and alignment grooves may be formed in the substrate connection portion corresponding to the alignment protrusions.

The receptacle and the board connecting portion may be printed with any one of numbers, symbols, and characters that can identify the connecting terminal of the receptacle and the connecting terminal of the board connecting portion, which are connected to each other.

The length of either one of the connection terminal of the receptacle and the connection terminal of the board connection portion connected to each other may be longer.

The power connecting device for a radio unit according to the present invention can easily and easily perform the process of electrically connecting the digital unit and the radio unit even if it is not a skilled worker and thus can reduce the labor cost, .

1 is a block diagram schematically illustrating a detachable base station equipped with a power unit for a radio unit according to the first embodiment.
2 is a perspective view showing a power connection unit for a radio unit according to the first embodiment.
3 is an exploded perspective view showing a power connecting device for a radio unit according to the first embodiment.
4 is an exploded perspective view showing a board connecting portion of a power connecting apparatus for a radio unit according to the first embodiment.
5 is a cross-sectional view illustrating a substrate connection portion of a power connection device for a radio unit according to a first embodiment coupled to a circuit board.
6 is a perspective view showing a part of a receptacle and a board connecting portion of a power connection apparatus for a radio unit according to the second embodiment.
7 is a perspective view showing a part of a receptacle and a board connecting portion of a power connecting apparatus for a radio unit according to the third embodiment.
8 is a perspective view showing a part of a receptacle and a board connecting portion of a power connecting apparatus for a radio unit according to a fourth embodiment.
9 is a perspective view showing a part of a receptacle and a board connecting portion of a power connecting apparatus for a radio unit according to a fifth embodiment.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor may appropriately define the concept of the term in order to best describe its invention It should be construed as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only examples of the present invention, and are not intended to represent all of the technical ideas of the present invention, so that various equivalents and modifications may be made thereto .

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a power connecting device for a radio unit according to the present invention will be described with reference to the accompanying drawings.

First Embodiment

1 is a block diagram schematically illustrating a detachable base station equipped with a power unit for a radio unit according to the first embodiment.

1, in order to supply the power supplied from the digital unit 3 to the radio unit 5, the power connecting apparatus 100 according to the first embodiment (hereinafter, referred to as a 'power connecting apparatus'), Can be installed in the radio unit 5.

The radio unit 5 may include a circuit board 51 and a case 53. A circuit for driving the radio unit 5 may be formed on the circuit board 51. The case 53 forms the appearance of the radio unit 5 and protects the circuit board 51. [ An installation hole (not shown) for installing the power connection device 100 may be formed in the case 53.

The digital unit 3 is connected to the base station 1 and can transmit and receive signals. The digital unit 3 can be provided with a cable 31 for supplying power to the radio unit 5 and transmitting and receiving signals. A plug 33 may be provided at an end of the cable 31 for convenience of attachment and detachment of the power connection apparatus 100 and the cable 31. At least two plug terminals 35 (see Fig. 4) may be inserted into the plug 33 and exposed to the outside of the plug 33.

FIG. 2 is a perspective view showing a power connecting device for a radio unit according to the first embodiment, FIG. 3 is a cross-sectional view showing a power connecting device for a radio unit according to the first embodiment, Fig. 2 is an exploded perspective view showing a power connection unit for a unit.

Referring to FIGS. 2 to 4, the power connection apparatus 100 may include a receptacle 200 and a substrate connection unit 300.

The receptacle 200 is for connection with the plug 33 and may include a fastening plate 210, an outer body 230, an inner body 250 and a first connection terminal 270.

A plurality of fastening holes 211 may be formed in the fastening plate 210. The fastening plate 210 can be firmly fastened to the case 53 of the radio unit 5 by fastening screws (not shown) fastened to the plurality of fastening holes 211. [ A first hermetic member 213 such as an o-ring may be provided between the fastening plate 210 and the case 53 to prevent foreign matter, moisture, and the like from being introduced into the case 53 .

The outer body 230 may extend from the fastening plate 210 to the outside of the case 53. The outer body 230 may be a cylindrical body. A first insertion groove 231 for connection of the plug 33 may be formed in the outer body 230. The inner body 250 may extend from the fastening plate 210 to the inside of the case 53.

The first connection terminal 270 may be made of a metallic material of a conductor. The first connection terminal 270 may include an outer terminal portion 271 and an inner terminal portion 273. The outer terminal portion 271 can be disposed inside the first insertion groove 231 and exposed to the outside of the case 53. [ The inner terminal portion 273 may be exposed to one surface of the inner body 250 by being inserted into the inner body 250. Of course, the outer terminal portions 271 may be arranged in a number corresponding to the number of the plug terminals 35, and may be arranged corresponding to the arrangement of the plug terminals 35. [

On the other hand, when the plug 33 is inserted into the first insertion groove 231, an alignment protrusion 37 protrudes from the outer surface of the plug 33 to align the plug terminal 35 and the outer terminal portion 271 . Alignment grooves 233 corresponding to the alignment protrusions 37 may be formed on the inner surface of the first insertion groove 231. The alignment protrusions 37 and the alignment grooves 233 allow the plug terminals 35 and the outer terminal portions 271 to be easily aligned.

In order to maintain a firm connection state between the plug 33 and the outer body 230 after the plug 33 is inserted into the first insertion groove 231 and the plug terminal 35 and the outer terminal portion 271 are connected to each other And the first screw portion 39 may be formed on the plug 33. A second threaded portion 235 corresponding to the first threaded portion 39 may be formed on the outer surface of the outer body 230. That is, if the first screw portion 39 is made of a female screw, the second screw portion 235 may be made of a male screw. The first threaded portion 39 and the second threaded portion 235 allow the connection state of the plug 33 and the receptacle 200 to be firmly maintained.

A second airtight member (not shown) such as an o-ring is disposed between the plug 33 and the first insertion groove 231 to prevent foreign matter, moisture, and the like from entering between the plug 33 and the receptacle 200. [ 251 may be installed.

An unillustrated reference numeral 290 is a retaining ring 290 for securing the inner body 250 and the fastening plate 210.

FIG. 4 is an exploded perspective view illustrating a board connecting portion of a power connecting apparatus for a radio unit according to a first embodiment, and FIG. 5 is a cross- to be.

4 and 5, the substrate connection part 300 may include an insulator 310, a support pin 330, and a second connection terminal 350.

The insulator 310 may be made of an insulating material. The insulator 310 may include a flat plate 311 and a protrusion 313. The flat plate portion 311 is in surface contact with the circuit board 51 so that the insulator 310 can be stably supported on the circuit board 51. [ The projecting portion 313 protrudes from the flat plate portion 311. The protrusion 313 may be formed with a second insertion groove 315 into which the inner body 250 is inserted.

The inner side surface of the second insertion groove 315 may be formed to correspond to the outer shape of the inner body 250. For example, if the outer shape of the inner body 250 is left-right or up-and-down asymmetric, the second insertion groove 315 may also be formed as a left-right or up-and-down asymmetric shape corresponding to the outer shape of the inner body 250 have. The inner body 250 and the second insertion groove 315 formed in the left-right or up-and-down asymmetric shape facilitate the first connection terminal 270 and the second connection terminal 350 to be formed easily.

The support pins 330 may be provided on the flat plate 311. The support pins 330 can be inserted into the support holes 51a formed in the circuit board 51. [ The detachment protrusion 331 may be formed on the outer surface of the support pin 330 to prevent the support pin 330 inserted into the support hole 51a from escaping from the support hole 51a.

The second connection terminal 350 may be made of a metallic material of a conductor. The second connection terminal 350 may include a first protrusion 351, a bent portion 353, and a second protrusion 355. The first projection 351 can be exposed to the inside of the second insertion groove 315. [ As the inner body 250 is inserted into the second insertion groove 315, the first projection 351 can be connected to the first connection terminal 270. Therefore, the second connection terminal 350 can be electrically connected to the first connection terminal 270. The bent portion 353 allows the second projection 355 extending from the first projection 351 to face the bottom surface of the flat plate portion 311. The second projection 355 can be exposed from the bottom surface of the flat plate portion 311 through the flat plate portion 311. The second protrusion 355 can be inserted into the soldering hole 51b formed in the circuit board 51. [ The second protrusion 355 may be soldered to the circuit around the soldering hole 51b and electrically connected to the circuit board 51. [

It is preferable that the length of one of the inner terminal portion 273 of the first connection terminal 270 and the first projection 351 of the second connection terminal 350 is longer than the length of the other one . This is because when the inner terminal portion 273 and the first protrusion 351 are connected to each other, the inner terminal portion 273 and the inner terminal portion 273 are formed by a variable such as an assembly error, a design error, The two connection terminals 270 and 350 can be smoothly connected within an allowable error range in accordance with the difference in length between the two terminal portions 273 and 351 even if the interval between the first protrusions 351 is not constant.

Hereinafter, the operation of the power connection apparatus for a radio unit according to the present invention will be described.

First, the circuit board connection portion 300 may be provided on the circuit board 51. That is, the support pin 330 is inserted into the support hole 51a formed in the circuit board 51. [ The second protrusion 355 of the second connection terminal 350 can be inserted into the soldering hole 51b as the support pin 330 is inserted into the support hole 51a.

On the other hand, the case 53 may be provided with a receptacle 200. That is, the receptacle 200 is seated in an installation hole (not shown) of the case 53 and the fastening plate 210 is fastened to the case 53 by fastening screws (not shown).

When the receptacle 200 is mounted on the case 53 and the board connecting portion 300 is mounted on the circuit board 51 as described above, the circuit board 51 is seated in the case 53.

At this time, the inner body 250 is inserted into the second insertion groove 315, and the first connection terminal 270 is connected to the first projection 351 of the second connection terminal 350. Accordingly, the first connection terminal 270, the second connection terminal, and the circuit board 51 can be electrically connected.

When the plug 33 is inserted into the first insertion groove 231 of the outer body 230, the plug, the first connection terminal 270, the second connection terminal, and the circuit board 51 can be electrically connected.

Thereafter, when the first screw portion 39 and the second screw portion 235 are fastened, the fastened state of the plug 33 and the receptacle 200 can be firmly maintained.

As described above, the power supply connection apparatus 100 for a radio unit according to the first embodiment includes the substrate connection portion 300 provided on the circuit board 51 of the radio unit 5 and the receptacle (not shown) provided on the case 53 of the radio unit 5, Power can be supplied from the digital unit 3 to the radio unit 5 by connecting the plug unit 200 to the digital unit 3 and connecting the plug 33 connected to the digital unit 3 to the receptacle 200. [

Therefore, the power connecting device 100 for a radio unit according to the first embodiment eliminates the inconvenience of connecting a separate electric wire to the receptacle 200 and connecting the electric wire connected to the receptacle 200 to the circuit board of the radio unit again It is possible to supply power from the digital unit 3 to the radio unit 5 with ease and ease.

Hereinafter, a power supply connection apparatus for a radio unit according to another embodiment will be described. The power connecting device for a radio unit according to another embodiment described below is similar to the power connecting device for a radio unit according to the first embodiment described above and is different in the shape of the inner body and the second insertion groove I have. Therefore, components that are not described in detail in the following description may be understood with reference to the description of the power connection unit for a radio unit according to the first embodiment described above.

Second Embodiment

6 is a perspective view showing a part of a receptacle and a board connecting portion of a power connection apparatus for a radio unit according to the second embodiment.

6, the power source heating apparatus for a radio unit according to the second embodiment includes an inner body 250 in the form of a triangular prism, and the second insertion groove 315 includes a triangular shape corresponding to the inner body 250 And may be formed in a groove shape.

In order to facilitate alignment between the first connection terminal 270 and the second connection terminal 350, an alignment groove 501 may be formed on an outer surface of the inner body 250, 315 may be formed with alignment protrusions 503 protruding correspondingly to the grooves.

Third Embodiment

7 is a perspective view showing a part of a receptacle and a board connecting portion of a power connecting apparatus for a radio unit according to the third embodiment.

7, the power source heating apparatus for a radio unit according to the third embodiment includes an inner body 250 in the form of a quadrangular prism, and the second insertion groove 315 has a rectangular shape corresponding to the inner body 250 And may be formed in a groove shape.

Fourth Embodiment

8 is a perspective view showing a part of a receptacle and a board connecting portion of a power connecting apparatus for a radio unit according to a fourth embodiment.

The power supply heating apparatus for a radio unit according to the third embodiment may include a cylindrical inner body 250 and the second insertion slot 315 may have a rectangular groove corresponding to the inner body 250.

The inner body 250 may have a polygonal column shape or a circular column shape and the second insertion groove 315 may have a shape corresponding to the inner body 250. An alignment groove 501 may be formed in the inner body 250 to facilitate alignment of the first connection terminal 270 and the second connection terminal 350. In the second insertion groove 315, 250 may be formed.

Meanwhile, in the above description, the inner body 250 has left and right or up-and-down asymmetric outlines, and the second insertion groove 315 corresponds to the inner body 250 in the left-right or up- As shown in Fig.

9, the terminal of the inner body 250 and the terminal of the second inserting groove 350 are connected to each other. (505) that can identify the terminal of the terminal (315), and the user can confirm this and arrange the terminals.

The embodiments of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art will be able to modify the technical idea of the present invention in various forms. Accordingly, such improvements and modifications will fall within the scope of the present invention as long as they are obvious to those skilled in the art.

1: Base station 3: Digital unit
5: Radio unit 31: Cable
33: plug 35: plug terminal
37: alignment protrusion 39: first screw portion
51: circuit board 53: case
100: Power connection device 200: Receptacle
210: fastening plate 230: outer body
250: inner body 270: first connection terminal
300: substrate connecting portion 310: insulator
330: Support pin 350: Second connection terminal

Claims

A power supply connection unit for a radio unit installed in a radio unit for receiving power from a digital unit connected to a base station,
A substrate connection part installed on a circuit board of the radio unit and having an insertion groove formed therein and disposed inside the case of the radio unit;
And a receptacle having one side exposed to the outside of the case and coupled to the power supply plug and the other side extending into the case and inserted into the insertion groove to be energized with the substrate connection part,
The receptacle
A fastening plate fastened to the case;
A first airtight member disposed between the case and the fastening plate to prevent foreign matter and moisture from entering into the case;
An outer body extending from the fastening plate to the outside of the case and having a first insertion groove into which the plug is inserted;
An inner body extending from the fastening plate to the inside of the case;
And a second airtight member disposed between the plug and the first insertion groove to prevent foreign matter and moisture from entering between the plug and the outer body.

The method according to claim 1,
Wherein the outer shape of the other side of the receptacle is vertically or horizontally asymmetrical, and the board connecting portion has an insertion groove corresponding to the outer shape of the receptacle.

The method according to claim 1,
Wherein an alignment protrusion protrudes from an outer surface of the other side of the receptacle and an alignment groove corresponding to the alignment protrusion is formed in the substrate connection portion.

The method according to claim 1,
Wherein the receptacle and the board connection part are printed with any one of numbers, symbols, and characters that can identify the connection terminal of the receptacle and the connection terminal of the board connection part, which are connected to each other.

The method according to claim 1,
Wherein a length of one of the connection terminal of the receptacle and the connection terminal of the board connection portion connected to each other is longer.