JPS6231982Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a BNC connector with a built-in switch mechanism.

Traditionally, BNC connectors have been widely used in the industry as the name for high-frequency coaxial connectors, but JIS calls them CO2 type connectors in JISC5412, but this name is rarely used in general. .

Conventionally, BNC connectors have been widely used as high-frequency coaxial connectors as described above, but they have the drawback that the terminals are movable and mounting on a printed circuit board is difficult, and a solution to this problem is being sought.

In view of the current situation, the present inventor built a changeover switch mechanism inside the connector, thereby achieving the following.
The present invention was developed based on the discovery that mounting on a substrate is easy and the above problems can be solved.

To explain with a drawing, the mounting screw 1 and collar 2
Inside the cylindrical case 3 having an outer surface, a convex circular fixed dielectric 4 is fixed to the end of the case 3 next to the screw 1 by any method, and the fixed dielectric 4 and A convex circular sliding dielectric body 7 is provided which is pressed and held against the internal collar 5 by a spring 6 provided between the two. Furthermore, a hole 8 is provided at the center of both dielectrics 4 and 7, passing through them, and the hole 8 has one end that ends within the sliding dielectric 7 and the other end that protrudes from the fixed dielectric 4 and is fixed. A sliding dielectric 7 is provided with a center contact 9 which is
The end of the center contact 9 on the side has a shape such as a fork, and forms a connection terminal for receiving a pin (not shown) inserted into the hole 8 from the outside.

On the other hand, between the fixed dielectric 4 and the sliding dielectric 7,
A metal ring 10 is fixed to the sliding dielectric 7, surrounds the center contact 9, and slides on the center contact 9 together with the sliding dielectric 7, and a part of the tip thereof is It is bent downward to form the terminal 20. On the other hand, the fixed dielectric has holes 12
A filament 13 passing through and bending its end upward is fixed to form a fixed terminal 21. Terminals 20 and 21 form a switch mechanism and constitute an NC contact. In other words, NC contact is the name of a cut-off terminal, and in normal conditions, the terminals are in contact and the circuit is closed, but when necessary, the circuit can be opened to switch.

That is, the fixed terminal 21 is located closer to the sliding dielectric 7 than the sliding terminal 20 by the action of the panel 6, and the two normally maintain a connected state. If the pin is inserted into the hole 8 from the outside, when the inserted pin connects with the center contact 9, the sliding dielectric 7 slides on the center contact 9 together with the terminal 20 against the spring 6. As soon as the connection between terminals 20 and 21 is broken,
The pin connects with the center contact 9 and the switch is switched.

To assemble the connector of the present invention, the sliding dielectric 7 equipped with the ring 10, the spring 6, and the fixed dielectric 4 fixed with the center contact 9 are inserted in this order into the case 3.
The fixed dielectric 4 is fixed to the case 3 by caulking or the like at a position where the terminals 20 and 21 maintain good contact, and the process is completed.

According to the present invention, the center contact 9 is fixed to the fixed dielectric 4, and the fixed terminal 21 and the movable terminal 20 fixed to the sliding dielectric 7 form an NC contact. It is easy to mount without using lead wires, so it has excellent workability, and since it has a built-in switch mechanism, we can provide a BNC connector with a switch that is excellent in terms of functionality. be.

[Brief explanation of the drawing]

The drawing is a longitudinal cross-sectional view of the proposed connector. 3... Case, 4... Fixed dielectric, 5... Tsupa, 6... Spring, 7... Sliding dielectric, 9... Center contact, 10... Metal ring, 13... Wire,
20...Sliding terminal, 21...Fixed terminal.

Claims (1)

[Scope of utility model registration request] The connector case 3 has a fixed dielectric body 4 to which a center contact 9 is fixed at the end, and a sliding dielectric body 7 that is pressed against a collar 5 inside the case slides along the center contact 9 inside the case. The center connector 9 passes through the center of both dielectrics, the ends of which extend over the sliding dielectrics forming terminals, and the center connector 9 slidably surrounds the center contact 9. The sliding terminal 20 is formed by bending downward a part of the metal ring 10 fixed to the sliding inductor 4, and the inner end of the case of the metal wire 13 inserted from the outside through the fixed inductor 4. A fixed terminal 21 fixed to a fixed inductor 4 formed by bending the part upward is connected to form an NC contact between the inductors, and the switch is switched by inserting a pin. With switch
BNC connector.