JPH0341503Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a case of a CATV amplifier.

``Prior Art'' As shown in FIG. 5, the conventional CATV amplifier casing includes a casing main body 103 with an outward flange 102 protruding from an opening 101 of a bottomed cylinder, and a casing main body 103. The opening 10 of the housing body 103 is pivoted on the lower surface.
The amplifier unit 105 is housed inside, and the lid 104 covers the bracket 11.
The housing body 103 is rotated around 2,112.
Close it by screwing it into the wire holder 113,1 of the housing.
Attach the messenger wire to 13 and hang it for use.

When the power is not superimposed on the coaxial cable connected to the input/output terminal 114 of the case body 103 of the CATV amplifier, power is supplied to the amplifier through the power insertion port 106 provided in the case body 103. .

When the power supply insertion port 106 is provided in the housing body 103, it is provided at one location on the bottom surface of the housing body 103, and the power supply insertion port 106 of the amplifier unit 105 housed inside is provided.
A recess 107 is carved in a location opposite to the power supply insertion port 106, and a power supply cable 111 is wired to the power supply line 110 via a waterproof plug 108 that is attached to the power supply insertion port 106. Connect the power supply connector 109 to the amplifier unit 105.
Connect to the power supply terminal of the The recess 107 is the power supply line 11
0 is passed therethrough, and the feeder line 110 is prevented from interfering with the amplifier unit 105 when the amplifier unit 105 is replaced.

This CATV amplifier includes a power supply cable 111 from a power supply device, a power supply line 110, and a power supply connector 1.
Power is supplied to the amplifier unit 105 through the amplifier unit 09, and the amplifier unit 105 becomes movable.

``Problems to be solved by the invention'' In the conventional CATV amplifier case as shown in FIG.
6 is provided, and the power supply cable 111 is inserted there, so the power supply cable 1 is connected from the messenger wire to the bottom surface of the housing body 103 at the place where the amplifier is installed.
11, that is, it took up a large space in the height direction.

In order to make effective use of the CATV facility space,
In order to reduce the space in the height direction, it became necessary to change the power supply insertion port 106 to be provided on the side of the housing body 103, and in order to use the amplifier unit 105 as it is without any modification, If the amplifier units used for both the case where the power supply insertion port is provided on the bottom surface of the case main body and the case provided on the side surface of the case main body are separate, maintenance will be troublesome and the manufacturing cost will be high, so it is recommended to make them common. It is desired to do so.

``Means that the invention attempts to solve'' As mentioned above, this invention can be used even in CATV amplifiers where the space in the height direction must be reduced.
Amplifier units used in locations where there is no height restriction can be used in common without any modification, and the power supply cable can be inserted into the side of the main body of the housing. This device enables smooth replacement of amplifier units, and includes a housing body in which an outward flange is protruded from an opening of a bottomed cylinder body, and an amplifier unit having a shape slightly smaller than the opening is accommodated in the opening, and a housing body. In the case of a CATV amplifier that is used for hanging and consists of a lid that is rotatably attached to the lower surface of the main body and covers the opening of the main body of the case, the power receiving port is bulged out on the side of the main body of the case, and the power receiving port is A hole communicating between the inside and outside of the casing is bored, a concave notch communicating with the hole is carved by opening the base of the outward flange facing the power supply inlet, and the hole is waterproofed. It has a structure in which a plug is attached, and the power supply line is inserted into the waterproof plug and connected to the amplification unit through a concave cut.

``Function'' Connect the power supply cable as a power supply line through a waterproof plug, pass this power supply cable through the waterproof plug in the power supply inlet hole of the CATV amplifier, and then pass it through the notch at the base of the outward flange of the housing body. Connect the power supply connector at the end of the wire to the power supply terminal of the amplifier unit. Next, when the amplifier unit malfunctions and you want to replace it with a normally working amplifier unit, open the lid covering the opening of the housing body, remove the power supply connector of the power supply line connected to the amplifier unit, and cut the power supply line. Avoid the part located on the flange side. Then, the amplifier unit and the feeder line are smoothly removed without tangling and replaced with a new amplifier unit, the connector of the feeder line is connected to the amplifier unit, and the lid is closed.

``Example'' Figures 1 to 4 show the case of the CATV amplifier of the present invention.

The housing includes a die-cast housing body 3 having an outward flange 2 protruding from an opening 1 of the bottomed cylinder over the entire circumference, and an outward flange 5 extending from the opening 4 of the bottomed cylinder around the entire circumference. A die-cast lid 6 is provided to cover the opening 1 of the housing body 3.
Pivotally attach the lid 6 to the brackets 7, 7 on the bottom of the lid 6.
The opening 1 of the casing body 3 is closed by screwing the upper part of the housing 3, and an amplifier unit 8 having a shape slightly smaller than the opening 1, that is, almost the same size is accommodated therein. The reason why the outer frame of the housing opening and the amplifier unit 8 are made to have substantially the same size is to prevent oscillation by making the housing and the amplifier unit 8 electrically at the same potential. This casing is suspended from a messenger wire (not shown) by wire holders 9 provided on the top surface of the casing body 3 with the opening 1 facing to the side.

The power receiving ports 11, 11 are bulged outward in the outward flanges 2 on both sides of the housing body 3, and the bases of the outward flanges 2 facing the power receiving ports 11, 11 are opened to form a concave shape. depth of cut 12,1
2 is engraved.

The power supply receiving port 11 is communicated with the concave notch 12 through the hole 13, and the hole 13 of the power supply receiving port 11
A waterproof plug 14 is attached to the power supply cable 18, a power supply cable 18 is connected to the power supply line 15 through the waterproof plug 14, a power supply connector 16 is attached to the tip of the power supply line 15, and the power supply connector 16 is connected to the power supply terminal 17 of the amplifier unit 8. do.

Power supply cable 18 from power supply device, power supply line 1
5. Supply power to the amplifier unit 8 via the power supply connector 16 and the power supply terminal 17 to operate the amplifier.

Although a waterproof plug is used for the power supply inlet, it is also possible to use a waterproof relay connector in the power supply inlet and connect the power supply line from the waterproof relay connector to the amplifier unit on the notch side in the housing. In this case, the power supply cable from the power supply device is connected to a waterproof relay connector on the side of the power supply inlet on the outside of the casing.

In this CATV amplifier, an input terminal port 21 and a branch output terminal port 22 are bulged out on one side of the housing body 3, and an output terminal port 23 and a branch output terminal port 24 are bulged out on the other side. I've let it out.

When removing the amplifier unit 8 from the CATV amplifier set in this way, first, as shown by the two-dot chain line in FIG.
By removing the power supply connector 16 from 7,
The feeder line 15 and the feeder connector 16 are separated from the amplifier unit 8, and the feeder line 15 is avoided so as not to interfere with the open concave notch 12 located on the outside of the amplifier unit 8 at the base of the flange 2. can be removed and replaced. That is, since the power supply line 15 is located in the notch 12 on the side of the opening 1, the operation for inserting and removing the amplifier unit 8 can be easily carried out without the amplifier unit 8 interfering with the power supply line 15.

``Effect of the invention'' This invention has a power supply inlet on both sides of the outward flange of the casing body, and when it is impossible to carve recesses on both sides of the amplifier unit due to the circuit design, the casing body A power receiving port is bulged out on the side surface, a hole is formed in the power receiving port to communicate the inside and outside of the casing, and the base of the outward flange facing the power receiving port is opened to communicate with the hole. This makes it possible to wire the power supply line by cutting a concave notch and attaching a waterproof plug to the hole of the power supply inlet and inserting the power supply line therein, thereby eliminating the need to cut a special concave part in the amplifier unit.

In addition, if the space in the installation height direction of the CATV amplifier case is limited, this invention provides the power supply inlet on the side of the case body, so the space in the installation height direction of the case can be saved as much as possible. It can be made smaller.

Furthermore, this invention has a concave notch carved into the base of the outward flange on the side of the housing body, eliminating the need to carve a special concave part in the amplifier unit, and replacing the conventional power supply slot with the bottom surface of the housing body. It is possible to use the amplifier unit that is used for the installed one, making it possible to share the amplifier unit, making maintenance easier, and reducing manufacturing costs.

In addition, the power supply openings are bulged on the outward flanges on both the left and right sides of the housing body, and notches are carved in the left and right bases of the outward flanges on the housing body.
When the casing is suspended from the messenger wire, open the lid of the casing and attach the waterproof plug to the power supply inlet of the casing body to connect the power supply cable to the amplifier from either the left or right direction. It becomes possible to supply power to the unit.

Although the CATV amplifier casing of the present invention is used outdoors, it has sufficient waterproof function because a waterproof plug is attached to the power supply opening hole into which the power supply line is inserted.

[Brief explanation of drawings]

Figure 1 is a perspective view of a specific embodiment of the present invention with the lid open, Figures 2 to 4 are the main body of the present invention, Figure 2 is its front view, and Figure 3 is the second The right side view of the figure, Figure 4 is the bottom view of Figure 2, and Figure 5 is the conventional
FIG. 2 is a perspective view of a case of a CATV amplifier. 2... Outward flange, 3... Housing body, 6...
...Lid, 11...Power supply inlet, 12...Notch,
13...hole, 14...waterproof plug, 15...power supply line.

Claims (1)

[Scope of utility model registration request] An outward flange is provided protruding from the opening of the bottomed cylinder,
A CATV amplifier that is used for hanging, which is composed of a housing body in which an amplification unit having a shape slightly smaller than the opening is accommodated in the opening, and a lid rotatably pivoted to the bottom surface of the housing body and covering the opening of the housing body. In the housing,
A power receiving port is bulged out on the side surface of the main body of the housing, a hole is formed in the power receiving port to communicate the inside and outside of the case, and the base of the outward flange facing the power receiving port is opened. A CATV amplifier characterized in that a concave notch communicating with the hole is carved, a waterproof plug is attached to the hole, and a power supply line is inserted into the waterproof plug and connected to an amplifier unit through the concave notch. casing.