JPS6218985Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is an interchangeable mode in which when installing a crystal oscillator or the like having two parallel terminal members, one terminal is made common and the other terminal is connected to another circuit. This relates to sockets for crystal oscillators, etc. that are installed in

In particular, the present invention is suitably used in a receiver such as a signal search receiver equipped with a large number of receiving channels, as described in Japanese Patent Application No. 50-54091 (Japanese Patent Publication No. 57-44053). This receiver has one crystal oscillator for each channel, and the frequency of each local oscillator is determined by connecting each crystal oscillator to two respective local oscillator frequency determining circuits. ing.

Specifically, for example, in the partial circuit of the receiver shown in FIG. It includes one switching diode 204 per channel. A connection is made from each diode via a crystal oscillator to one or the other of the local oscillators. Therefore, this receiver has a common connection section connected to each diode, and a first and second connection section 208 connected from this common connection section 206 to one or the other oscillator via a crystal oscillator. It would be desirable to provide a crystal oscillator socket having a plurality of sets of 210, that is, as many sets as the number of channels provided. The two terminals of the crystal oscillator are connected between the first connection and the common connection or the second connection and the common connection.

According to the invention, at least one common hole 12
The members 18, 20, 22 and the base body 10 are provided with 114th and 216th holes, which are spaced apart from the common hole by a predetermined distance, for example, an equal distance, and have the same number as the common holes, and all of the holes are provided with conductive material. members 18, 2 made of material and in conductive engagement with the terminals of the crystal oscillator;
0 and 22, so that the two terminals of the crystal oscillator are installed in the first hole and the common hole, and in the second hole and the common hole. A crystal oscillator socket is provided having a second position.

Embodiments of the present invention will be described below with reference to the drawings.

Figures 1 to 5 all show a crystal oscillator socket according to an embodiment of the present invention, with Figure 1 being a top view, Figure 2 being a front view, Figure 3 being a bottom view, and Figure 4 being a bottom view.
The figure is a side view, and FIG. 5 is a sectional view taken along line A-A in FIG. 1.

FIG. 1 shows four common holes 12 (12a to 12).
d) and the four first holes 14 (14a-
14d) and four second holes 16 (16a to 16
d) A socket base 10 is shown provided with. A connecting member 18, 20, 22 is secured to each hole 12, 14, 16 to engage with a terminal of a crystal oscillator. That is, in the four common holes 12a to 12d,
Each of the connecting members 18a to 18d connects four first
Connecting members 20a are provided in the holes 14a to 14d, respectively.
~20d are also four second holes 16a~16d
Connecting members 22a to 22d are fixed to each of the connecting members 22a to 22d. The substrate 10 is preferably made of a dielectric material such as polycarbonate, and the connecting members 18, 20, 22 are preferably made of a conductive material such as silver-plated metal.

Common hole 12, first hole 14 and second hole 16
The number of connecting members 18, 20, 22 is not limited to four, and can be arbitrarily selected depending on the purpose and use. For example, the crystal oscillator has its two terminals between one of the common holes 12 12a and one of the first holes 14a, or between 12a and the second hole 16.
Since it is selectively installed between the one 16a of the
The distance from the common hole 12a to the first hole 14a and the distance to the second hole 16a must be approximately equal.

The parts of the connecting members 18, 20, 22 that protrude from the bottom surface of the base 10 are attached to a circuit board, or
Or suitable conductive wires are soldered or wrapped.

As described above, according to the present invention, the socket is provided with at least one common hole and the first holes and second holes, which are spaced apart from the common hole by a predetermined distance and are equal in number to the common holes. Therefore, when installing a crystal oscillator, connect the two terminals with one of them in the common hole and the other in the first hole.
The frequency of the local oscillator can be easily determined simply by selectively mounting it in the first hole or the second hole.

Therefore, it is no longer necessary to prepare as many sets of sockets as there are channels, as was the case in the past. Therefore, in a receiver whose set space is limited, the space can be saved, and the size of the receiver can be reduced.

[Brief explanation of the drawing]

Figures 1 to 5 all show examples of the present invention, with Figure 1 being a top view, Figure 2 being a front view, Figure 3 being a bottom view, Figure 4 being a side view, and Figure 5 being a side view. 1 is a sectional view taken along line A-A' in FIG. 1, and FIG. 6 is a diagram showing a part of the circuit of a receiver in which the socket of the present invention is used. In the figure, 10 is a dielectric substrate, 12 (12a to 1
2d) is a common hole, 14 (14a to 14d) is the first
holes, 16 (16a to 16d) are second holes, 18
~22 (18a~18d, 20a~20d, 22
a to 22d) indicate connecting members.

Claims (1)

[Scope of utility model registration request] At least one common hole 12 and first holes spaced apart from the common hole by a predetermined distance and each having an equal number of first holes.
14 and 216 holes are provided in the base 10, and members 18, 20, 22 made of a conductive material and conductively engaged with the terminals of the crystal oscillator are fixed to all the holes,
The two terminals of the crystal oscillator have a first position where the two terminals are attached to the first hole and the common hole, and a second position where the two terminals are attached to the second hole and the common hole. A socket for a crystal oscillator, etc.