JP3222998U - Duplexers, distributors and connectors - Google Patents

Abstract

A duplexer that suppresses unnecessary radiation due to insufficient shielding is provided. A duplexer 1 includes an electronic substrate that demultiplexes a signal received from an input terminal 111, a connection portion that guides the demultiplexed signal to an output terminal, and a zinc alloy that accommodates the electronic substrate and the connection portion. It has a die-cast main body using an iron alloy and an aluminum cover 12 that accommodates the main body. The amount of radiation of electromagnetic waves to the outside can be suppressed by the double shield. [Selection] Figure 1

Description

  The present invention relates to a duplexer, a distributor, and a connector.

  In a duplexer, a case is known in which the inside is divided by a partition wall having a shielding effect and covers the outside of each element.

Japanese Examined Patent Publication No. 6-056445

If the shield is insufficient and noise is radiated, other devices may be affected.
In one aspect, the present invention aims to suppress unwanted radiation due to insufficient shielding.

  To achieve the above objective, a disclosed duplexer is provided. This duplexer uses an electronic substrate that demultiplexes a signal received from an input terminal, a connection portion that guides the demultiplexed signal to an output terminal, and a zinc alloy or an iron alloy that accommodates the electronic substrate and the connection portion. It has a die-cast main body and an aluminum cover that accommodates the main body.

  In one mode, unnecessary radiation due to insufficient shielding can be suppressed.

It is a top view which shows the branching filter of embodiment. It is the exploded view which showed typically the duplexer of embodiment. It is sectional drawing of a duplexer. It is a figure explaining the 1st modification of a duplexer. It is a figure explaining the 2nd modification of a duplexer. It is a figure explaining an application example.

Hereinafter, a duplexer, a distributor, and a connector according to an embodiment will be described in detail with reference to the drawings.
<Embodiment>
FIG. 1 is a plan view showing a duplexer according to an embodiment. FIG. 2 is an exploded view schematically showing the duplexer of the embodiment.
The duplexer 1 of the first embodiment separates satellite broadcast radio waves such as BS and CS and terrestrial digital broadcast radio waves.

The duplexer 1 includes a die-cast main body (thin casing) 11 using a zinc alloy or an iron alloy, and an aluminum cover 12 that accommodates the main body 11. As shown in FIG. 1, the cover 12 has a cylindrical shape capable of printing a logo or the like on a flat surface. The cover 12 has a plurality of support portions 121 that support the main body portion 11.
The main body 11 has one input terminal 111 and two output terminals 112 and 112. The number of output terminals is not limited to two and may be three or more.
A resin 13 for fixing the main body 11 and the cover 12 is disposed on the surface of the main body 11 on which the input terminal 111 and the output terminals 112 and 112 are provided.

In the main body 11, an electronic board (not shown) that demultiplexes a signal received from the input terminal 111 and a connection portion that guides the demultiplexed signal to the output terminals 112 and 112 are arranged. In addition, since the conventionally well-known thing can be used for the internal structure of the main-body part 11, detailed description is abbreviate | omitted.
FIG. 3 is a cross-sectional view of the duplexer.

  As described above, the main body part 11 is supported by the support part 121. In FIG. 3, an image of generated electromagnetic waves (noise) is indicated by arrows. A portion with a lot of electromagnetic waves has a high arrow density, and a portion with a small amount of electromagnetic waves shows a low arrow density.

  Since the main body part 11 is made of die-casting using a zinc alloy or an iron alloy, the radiation amount of electromagnetic waves to the outside of the main body part 11 is suppressed. Furthermore, the amount of radiation to the outside of the electromagnetic wave is suppressed by covering the main body 11 with the cover 12 made of aluminum.

Moreover, by covering the main body part 11 with the cover 12 made of aluminum, the electronic substrate and the connection part arranged in the main body part 11 can be protected from external impact and pressure.
Further, since the cover 12 is made of aluminum, it is easy to print a logo or the like.

  In the present embodiment, the duplexer has been described as an example. However, the present invention is not limited to this, and a structure similar to that of the duplexer 1 can be applied to a distributor that divides one signal into a plurality of signals.

  In FIG. 2, the back side of the main body 11 may be bottomed. In this case, when the main body 11 is moved from the front side of the paper to the back side of the paper, the main body 11 is engaged with the bottom. At this time, the input terminal 111 may be exposed to the outside of the cover 12.

<Manufacturing method>
Next, an example of a method for manufacturing the duplexer 1 will be briefly described.
(Step 1) First, a PCB (Printed Circuit Borad) is assembled in a zinc die-cast shield case, and then the main body 11 is manufactured by soldering the PCB to the terminals of the shield case.
(Step 2) The cover 12 is mounted so as to cover the main body 11 manufactured in the step 1.
(Step 3) The main body 11 to which the cover 12 is attached in step 2 is set in a resin mold. And resin 13 is arranged by pouring resin.

<First Modification>
FIG. 4 is a diagram for explaining a first modification of the duplexer.
In the duplexer 1 a shown in FIG. 4, cables 14 and 14 are connected to output terminals 122 and 122, respectively.

<Second Modification>
FIG. 5 is a diagram for explaining a second modification of the duplexer.
In the duplexer 1b shown in FIG. 5, cables 14, 14, and 14 are connected to an input terminal 121 and output terminals 122 and 122, respectively.

<Application example>
FIG. 6 is a diagram for explaining an application example.
Although FIGS. 1-5 demonstrated the duplexer, the structure which has the main-body part made from die-casting which used a zinc alloy or an iron alloy, and the cover made from aluminum which accommodates a main-body part is another apparatus. Can also be applied. FIG. 6 is a diagram illustrating an example in which the structure is applied to an HDMI (registered trademark) cable.
The connectors 20 and 20 included in the HDMI cable 2 are respectively connected to a connector terminal 21 and
It has a die-cast main body using zinc alloy or iron alloy that accommodates part of the connector terminal 21, and an aluminum cover 22 that accommodates the main body.
The cover 22 accommodates the main body portion and has a cylindrical shape capable of printing a logo or the like on a flat surface.

Further, the gap between the connector terminal 21 and the cover 22 and the gap between the cover 22 and the cable 23 are covered with a resin 24.
In FIG. 6, the HDMI cable is described as an example. However, the types of cables that can be applied are not limited to those described above, such as DVI cables and display port cables.

<Manufacturing method>
Next, an example of a method for manufacturing the HDMI cable 2 will be briefly described.
(Step 1) The main body is manufactured by assembling and fixing the connector terminal 21 to which the cable 23 has been wired in a steel shield case.
(Step 2) The cover 22 is attached to a steel shield case.
(Step 3) The resin 24 is placed by setting the resin mold and injecting the resin.

Although the duplexer, the distributor, and the connector of the present invention have been described based on the illustrated embodiment, the present invention is not limited to this, and the configuration of each part is an arbitrary function having the same function. It can be replaced with the configuration of Moreover, other arbitrary components and processes may be added to the present invention.
Further, the present invention may be a combination of any two or more configurations (features) of the above-described embodiments.

DESCRIPTION OF SYMBOLS 1, 1a, 1b Splitter 2 HDMI cable 11 Main-body part 111,121 Input terminal 112,122 Output terminal 12 Cover 121 Support part 13 Resin 20 Connector 21 Connector terminal 22 Cover 23 Cable 24 Resin

Claims (6)

An electronic board that demultiplexes the signal received from the input terminal;
A connection part for guiding the demultiplexed signal to the output terminal;
A die-cast main body using a zinc alloy or an iron alloy, which accommodates the electronic substrate and the connection portion;
An aluminum cover for housing the main body,
The duplexer characterized by having.   2. The duplexer according to claim 1, wherein the aluminum cover has a cylindrical shape capable of printing on a flat surface portion. An electronic board for distributing a signal received from the input terminal;
A connection section for guiding the distributed signal to the output terminal;
A die-cast main body using a zinc alloy or an iron alloy, which accommodates the electronic substrate and the connection portion;
An aluminum cover for housing the main body,
A distributor characterized by comprising:   The distributor according to claim 3, wherein the aluminum cover has a cylindrical shape capable of printing on a flat surface portion. A connector terminal;
Die-cast main body using zinc alloy or iron alloy that accommodates part of the connector terminal,
An aluminum cover for housing the main body,
A connector comprising:   The connector according to claim 5, wherein the aluminum cover has a cylindrical shape capable of printing on a flat surface portion.

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