JPS58106920A - Casing for radio machine - Google Patents

Abstract

PURPOSE:To only pile up respective parts, which are adjusted preliminarily, to obtain a desired overall characteristics, by partitioning the inside of a casing into an upper part and a lower part with partitioning plate and partitioning the upper part into plural parts and storing function parts formed on a print board in each partition. CONSTITUTION:The inside of a casing 1 is partitioned into an upper part and a lower part with a partitioning plate 2, and the upper part is partitioned with subpartitioning plates 3 and 4, connectors 8 and 9 are fixed to a transmission part pirnt board 5 and a reception part print board 7 and are connected electrically by coaxial cables 8a and 9a. An antenna sharing equipment 10 is attached under the partitioning plate 2, and connectors 8 and 9 are connected to the sharing equipment 10, and the transmission part print board 5, a synthesizer part print board 6, and the reception part print board 7 are stored in parts partitioned with subpartitioning plates 3 and 4 and are fixed onto the partitioning plate 2 by screws or the like. The sharing equipment 10 is connected to an antenna connector 12 through a coaxial cable 11a, and an upper cover 14 is futted to the upper face of the casing 1 by fitting parts 14a and 14b, and a lower cover 15 is fitted to the lower face of the casing 1 thrugh fitting parts 15a, and thus, they are assembled. Respective parts are shielded completely by shielding members to suppress the unnecessary radiation.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wireless device casing that improves the characteristics of unnecessary radiation from the wireless device.

Conventionally, in wireless communication devices with strict electrical standards such as car telephone devices, the transmitting section, receiving section, antenna duplexer, etc. were placed in separate cases and shielded, and coaxial connectors were attached to the input and output terminals of each part, and these connectors were However, in a small radio device, a large amount of space is wasted, and there are a large number of connection parts such as connectors and cords, making it difficult to downsize and reduce costs. Deterioration of characteristics due to unnecessary radiation of radio waves from the connection parts such as these has become a problem.

The object of the present invention is to eliminate these drawbacks and provide a stable housing for a small radio device such that when pre-adjusted parts are assembled, the required overall characteristics can be obtained by simply accumulating the characteristics of each part. That is.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained below based on one embodiment thereof with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a box-shaped housing with an open top and bottom, a partition plate 2 that divides the interior into upper and lower parts, and a middle partition plate 3 that divides the upper part of the partition plate 2 into three blocks. 4 is provided, and on the upper three parts, parts are mounted respectively from left to right, including a transmitter printed board 62, a frequency synthesizer part printed board 6. The receiver printed board 7 is housed and the parts provided on the printed board are not shown).

8.9 are connectors attached to the transmitter printed board 6 and the receiver printed board 7, respectively; 8a and 9a are coaxial cables connecting the connectors 8 and 9 and the printed boards;
10 is an antenna duplexer housed in a separate shield case and attached to the bottom of the partition plate 2; 11 is an antenna duplexer 1;
0 connector, 12 is an antenna connector connected to the antenna, 11a is a coaxial cable connecting between connector 11 and connector 12, 13 is a connecting part between connectors 8, 9 and antenna duplexer 10, 14 is a top cover, and 14 is a top cover. Fitting parts 14a and 14b between the upper part of the main body 1 and the partition plates 3 and 4
has. 16 is fitted between the lower part of the housing body 1'1d
15a is provided on the lower lid.

To assemble the wireless chassis with the above configuration, connectors 8 and 9 are required.
The transmitting part printed board 5 and the receiving part printed board 7 respectively.
It is mechanically fixed to the coaxial cables 8a and 9a and connected to the coaxial cables 8a and 9a in an airtight manner. Next, the antenna duplexer 10i is attached to the lower part of the partition 2 of the housing body 1, and as described later, the connectors 8 and 9 are connected to the antenna duplexer 10, respectively, and the transmitter printed board 5. Synthesizer part printed board 6. The receiver printed board 7 is housed inside the interior partitioned by the partitions 3 and 4, and each is fixed to the upper part of the partition plate 2 by screws (not shown) or the like.

Furthermore, the antenna duplexer 1o is connected to the connector 11. Connect the antenna connector 12 via the coaxial cable 11 ai,
The assembly is completed by fitting the upper cover 14 through the fitting parts 14a and 14b and the lower cover 15 to the upper and lower surfaces of the housing body 1 via the fitting part 16a.

Next, FIG. 2 shows the detailed structure of the connection part 3 between the connector 8, the antenna duplexer 10, and the partition plate 2 of the housing body, and 2a is a hole formed in a part of the partition plate 2. , 8b is a coupling portion provided at the tip of the connector 8, and is located at a position facing the connector 10a which is connected to the antenna duplexer 10. Reference numeral 13a is an annular groove provided around the hole 2a, and 13b is an annular protrusion embedded in the groove 13a, which is made of a shield member such as an elastic conductor braid. In addition, connector 9
The connection between the antenna duplexer 1o and the antenna duplexer 1o can be made in the same manner.

In order to assemble the connection part 13, the partition plate 2 and the antenna duplexer 10 are fixed close to each other, and the protrusion 1
3b is crimped onto the upper surface of the antenna duplexer 1o and is electrically well connected. On the other hand, by passing the connector 1oa provided on the top surface of the antenna duplexer 1o through the hole 2ai of the partition plate 2 and connecting it to the coupling part 8a of the connector 8 at the upper part of the partition plate 2, the antenna duplexer 10 can be connected to the connector 1o. It is directly combined with 8.

As explained above, according to the non-invention, the delivery/ku section.

The receiving section and part of the synthesizer are housed as printed boards, and they are shielded from each other in the same way as if they were provided with a separate shield case, and they are not directly connected to the antenna duplexer, which is a particular problem in terms of measures against unnecessary radiation. In addition to being able to connect without going through a coaxial cable, it is completely shielded by a shielding member, suppressing unnecessary radiation, so there is no need to worry about radio wave leakage, and there is no change in characteristics due to coaxial cable routing. Stable electrical characteristics can be achieved simply by assembling each part of the radio according to Junyo, and its industrial value is immense.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a wireless temporary housing according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view showing the detailed structure 11N'(r) of the main parts. 1... Housing, 2... Partition plate, 3, 4...
...Inner partition plate, 5...Transmission section, 6...
... Receiving section, 8, 9 ... Connection connector, 10
...Antenna duplexer, 2a...Through hole, 10a...Connector, 13b...Shield member.

Claims (1)

[Claims] The upper and lower blocks are constructed by dividing the inside of the casing into upper and lower parts with partition plates, the Toshita block is formed by further partitioning the above-mentioned block into a plurality of blocks, and the block is housed in the thin block, and each has a connecting connector. A transmitting section and a receiving section that are connected and formed on a printed circuit board, and a duplexer side connector housed in the lower block and connected to the transmitting section and receiving section, and for antennas housed in a separate shield case. a duplexer, an i-passenger provided on the partition plate at the top of the duplexer side connector, and a shield member provided between the individual shield case of the duplexer around the through hole, When the common device is fixed to the lower part,
The tip of the duplexer side connector protrudes into a thin block in which the transmitting section and the receiving section are housed, and the connecting connectors of the transmitting section and the receiving section are fitted into the duplexer side connector. A plain casing that electrically connects a transmitter, a transmitter, and a receiver, and has the upper and lower partition plates in contact with the case of the duplexer via the shield member.