JPH0215264Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a jack in which terminals are opened and closed by inserting and removing a pin plug to form a desired circuit.

[Prior Art] As shown in FIG. 9, a conventional jack 1 includes a cylindrical housing 3 extending in the longitudinal direction of a pin plug 2. A pin plug insertion hole 4 is inserted into the center of the housing 3 from one end. A plurality of terminals 5, 6, and 7 are provided that protrude from the other end of the housing 3, and the contact portions of these terminals 5, 6, and 7 are connected to the pin plug insertion hole 4 of the housing 3. A grounding fitting 8 was provided to face the inside of the housing 3, and the outer periphery of the cylindrical portion of the housing 3 was covered with a grounding fitting 8. When the pin plug 2 is inserted into the insertion hole 4, the terminal 5 and the pin plug 2 come into contact, and
The normally closed terminals 6 and 7 were opened, and the desired circuit was constructed.

[Problems to be solved by the invention] In the conventional jack 1, there was a problem that the length of the housing 3 was too long, making it unsuitable for the current situation where each electrical component has been made into chips and has become extremely small. . Furthermore, assembling each terminal 5, 6, 7 and the housing 3 was troublesome. Furthermore, the number of terminals 5, 6, and 7 may increase depending on the circuit, but even if these terminals have some parts in common, most of them have different shapes, which increases the number of parts and the number of assembly steps. The problem was that there were too many.

[Means for Solving the Problems] The present invention was made to solve the above problems, and the housing includes a pin plug insertion part, a thin plate-like terminal holding part perpendicular to the pin plug insertion part, and This terminal holding part has an engaging recess into which the base is fitted, a break terminal, a ground terminal,
A terminal holding hole for holding a fixed terminal such as a short-circuit terminal is provided, at least two movable terminals made of wire are provided on the base, and one of the movable terminals is provided with an insulator to prevent contact with the pin plug. It is made by attaching.

[Function] When the pin plug is inserted into the pin plug insertion hole of the housing, the ground cylinder of the pin plug connects with the ground terminal, the two movable terminals are spread by the pin plug, and one movable terminal is separated from the fixed break terminal. The other movable terminal is separated from the other fixed breaking terminal and connected to other terminals as necessary. Therefore, a desired circuit can be obtained. Other circuits can be formed by increasing or decreasing the number of terminals or by attaching contact pieces in place of the terminals.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

Reference numeral 10 denotes a base, and since this base 10 is directly heated by solder, it is made of a heat-resistant resin such as PBT resin. Two movable terminals 11 and 12 made of conductive wire are attached to the base 10 so as to pass through the top and bottom, and one of the movable terminals 12 has an insulator 14 in the middle to prevent connection with the pin plug 13. installed. Further, claw portions 15, 15 are integrally formed on both sides of the base 10. The movable terminals 11 and 12 are attached to the base 10 by insert molding to prevent flux from entering during soldering.

Next, reference numeral 16 denotes a housing made of a resin that does not require relatively heat resistance, such as ABS resin.
7 and a thin plate-shaped terminal holding portion 18 perpendicular to the terminal holding portion 7 .

A pin plug insertion hole 19 into which the pin plug 13 is inserted is bored in the center of the pin plug insertion part 17, and the outer periphery of the pin plug insertion part 17 is covered with a conductive cylindrical grounding fitting 20. A ground terminal 21 integrated with 20 projects downward through the side of the terminal holding portion 18. An engaging recess 22 for fitting the base 10 from below is formed on the lower surface of the terminal holding part 18, and claw parts 15, 1 of the base 10 are provided on both sides of the engaging recess 22.
Locking holes 23, 23 into which 5 is locked are bored. Further, a chamber 24 for the movable terminals 11 and 12 to swing is formed inside the terminal holding portion 18, penetrating from the lower engagement recess 22 to the upper side, and both sides of the chamber 24 are One side is slope 2
5, the other side serves as an escape recess 26 of the insulator 14. Two terminal holding holes 27 and 28 are bored at the upper end of the chamber 24, and these terminal holding holes 27 and 28 are provided with independent fixed terminals 29 and 30 as shown in FIG. A U-shaped short-circuiting fixed terminal 31 as shown in FIG.
It protrudes to the inside. In addition, independent fixed terminal 2
9 and 30, it protrudes downward from the lower end along the back surface of the terminal holding portion 18.

Next, the operation of the jack 35 constructed as described above will be explained with reference to FIGS. 5a and 5b to 8a and 8b. First, FIG. 5a shows two movable terminals 1
Independent fixed terminal 2 consisting of only 1 and 12
9, 30 or an example of use without the short-circuiting fixed terminal 31 is shown. In this example, when the pin plug 13 is inserted into the pin plug insertion hole 19, the grounding fitting 34 provided on the pin plug 13 and the grounding fitting 20 provided on the jack 35 are connected. When the pin plug 13 is further inserted, the tip of the pin plug 13 contacts the movable terminals 11 and 12 and pushes them apart, so that one movable terminal 11 is electrically connected to the pin plug 13. However, since the other movable terminal 12 is in contact with the pin plug 13 via the insulator 14, it is not electrically connected. This jack 35 in Fig. 5a is similar to the jack 35 in Fig. 5b.
It is equivalent to the circuit diagram of , 20 is a grounding fitting, 21
11 indicates a ground terminal, and 11 indicates a movable terminal.

Next, FIG. 6a shows two movable terminals 11 and 12.
A usage example having a short-circuiting fixed terminal 31 is shown. In this example, when the pin plug 13 is inserted into the pin plug insertion hole 19, the shorting fixed terminal 31
The movable terminals 11 and 12, which had been short-circuited through the terminals, are spread apart from each other and act as a switch.
The jack 35 in Fig. 6a is equivalent to the circuit diagram in Fig. 6b, 20 is a grounding fitting, 21 is a grounding terminal, 11 is one movable terminal, 12 is the other movable terminal, and 31 is a short-circuit fixing. Shows terminals.

Next, FIG. 7a shows two movable terminals 11 and 12.
This shows an example of use having two independent fixed terminals 29 and 30. In this example, when the pin plug 13 is inserted into the pin plug insertion hole 19, one movable terminal 11 is disconnected from one fixed terminal 29, and the other movable terminal 12 is disconnected from the other fixed terminal 30. Ru. This jack 35 in FIG. 7a is equivalent to the circuit diagram in FIG. 7b, and 2
0 is a grounding fitting, 21 is a grounding terminal, 11 is one movable terminal, 12 is the other movable terminal, 29 is one fixed terminal, 30 is the other fixed terminal, and 14 is an insulator.

Next, FIG. 8a shows two movable terminals 11 and 12.
A usage example having one independent fixed terminal 29 is shown. In this example, when the pin plug 13 is inserted into the pin plug insertion hole 19, the connection between the other movable terminal 12 and the other fixed terminal 30 is released. The jack 35 shown in FIG. 8a is equivalent to the circuit diagram shown in FIG. This is a fixed terminal.

[Effects of the Invention] Since the present invention is configured as described above, the jack has a smaller shape, can be handled in the same way as a chip-shaped component, and is suitable as an IC circuit component. Further, since only the base is made of heat-resistant resin and the housing can be made of a material that does not require relatively heat resistance, the cost of materials can be significantly reduced. Furthermore, since the movable terminal is a wire, it has a simple shape and has the advantage of reducing the number of parts.

[Brief explanation of drawings]

Figures 1 to 8 show an embodiment of the jack according to the present invention, with Figure 1 being a longitudinal sectional front view and Figure 2
The figure is a vertical side view, Figure 3 is an exploded perspective view, Figure 4 is a perspective view of the short-circuit fixed terminal, Figures 5 a, b, 6 a, b, 7 a, b, and 8. 9A and 9B are an explanatory diagram and a circuit diagram showing an example of use, respectively, and FIG. 9 is a partially cutaway front view of a conventional jack. 10... Base, 11, 12... Movable terminal, 13
... Pin plug, 14 ... Insulator, 16 ... Housing, 17 ... Pin plug insertion part, 18 ... Terminal holding part, 19 ... Pin plug insertion hole, 20 ...
Earthing fitting, 21...Earth terminal, 22...Engagement recess, 24...Room, 27, 28...Fixed terminal holding part, 29, 30...Independent fixed terminal, 31...
... Fixed terminal for short circuit, 32, 33 ... Contact part, 35
...Jack.

Claims (1)

[Claims for Utility Model Registration] (1) The housing consists of a pin plug insertion part and a thin plate-like terminal holding part perpendicular to the pin plug insertion part, and this terminal holding part has an engaging recess into which the base is fitted. and a terminal holding hole for holding a fixed terminal, the base is provided with at least two movable terminals made of wire, and one of the movable terminals is provided with an insulator for preventing connection with a pin plug. A jack characterized by being attached. (2) The jack according to claim 1, wherein the fixed terminal is a short-circuiting fixed terminal that shorts between two movable terminals and separates when a pin plug is inserted. (3) The scope of the utility model registration claim consists of two fixed terminals, these two fixed terminals are independently connected to two movable terminals, and the independent fixed terminals separate when a pin plug is inserted. The jack described in paragraph 1.