JP2584265Y2 - Connection structure of electrical connector for coaxial cable - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a connection structure of an electric connector for a coaxial cable. [Prior Art] In general, coaxial cables are often used as signal transmission cables for interfaces in and between devices such as communication devices and electronic computers, because of their higher signal propagation speed and noise resistance. The conventional connection structure of an electric connector for a coaxial cable uses a seventh connector when connecting a coaxial cable to a circuit board in the apparatus.
As illustrated in the figure, the outer insulating layer 2 of the coaxial cable 1 is peeled, the drain wire 3 is pulled out, the outer conductor 4 is cut at a position substantially the same as the peeling position of the outer insulating layer 2, and the inner insulator 5 is further peeled. Then, the coaxial cable 1 which has been terminated so as to draw out the stop conductor 6 is connected to a printed board having an electrical connector 31 including a ground contact 32 and a signal contact 33.
The central conductor 6 of the coaxial cable 1, which has been terminated beforehand, is connected by soldering to 30 signal extraction pieces 35, and the drain wire 3 is soldered to the ground extraction piece 34. [Problems to be Solved by the Invention] However, the connection structure of the conventional electric connector for a coaxial cable described above is composed of a terminal stripping process of the coaxial cable 1 and a signal line lead piece 32 and a ground line lead piece 31 on the printed board 30. It takes too much time to solder the center conductor 6 and the drain wire 3 to the substrate, and since the center conductor 6 and the drain wire 3 are once relayed on the printed circuit board 30, the transmission characteristics are also deteriorated electrically. There are drawbacks. [Means for Solving the Problems] The connection structure of the electric connector for a coaxial cable according to the present invention includes: a) a central conductor, an internal insulating layer provided on the outer periphery of the central conductor, and the internal insulating layer, which are collectively covered; A terminal portion comprising an outer conductor, the inner insulating layer, and a drain wire extending in parallel with the center conductor across the outer conductor, and a terminal portion including the outer conductor and an outer insulating layer covering the drain wire, is connected to the inner conductor and the inner conductor. A coaxial cable in which the outer conductor, the drain wire, and the outer insulating layer are peeled off at the same place so that only a layer remains constant; b) a ground press-fitting slit into which both the outer conductor and the drain wire are press-fitted. And the drain wire contacts the ground press-fitting slit in a state of the coaxial cable with the insulating layer covering the ground contact. Configured to include an electrical connector connected with the coaxial cable is effected by press-fitting the coaxial cable the located coaxial cable as it is the ground pressure slit that direction. Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG.
The figure is a detailed perspective view of the coaxial cable shown in FIG.
FIG. 3 is a detailed perspective view of the electrical connector shown in FIG. The coaxial cable 1 shown in FIG. 2 shows an end when the terminal processing is performed. In the terminal treatment, the outer insulating layer 2, the drain wire 3, and the outer conductor 4 are peeled off at once at the same position so as to leave the inner insulating layer 4 having a certain length. The electrical connector 20 shown in FIG. 3 is to which the coaxial cable 1 shown in FIG. 1 is connected, and a signal contact 25 having a signal pressure slit 24 and a ground having a ground pressure slit 21 and a clamping slit 22. And a contact 23. The connection structure of the coaxial cable electrical connector shown in FIG. 1 is a perspective view when the terminal-treated coaxial cable 1 is connected to the electrical connector 20. 4 to 6 are views taken along arrows AA, BB, and CC shown in FIG. 1. As is apparent from FIG. With the layer 5 covered, it is press-fitted into the signal press-fitting slit 24, the inner insulating layer 5 is cut off by the signal press-fitting slit 24, and the center conductor 6 is gradually press-fitted into the signal press-fitting slit 24 while deforming. Close contact with the edge. Further, the coaxial cable 1 is press-fitted into the ground press-fitting slit 21 and the clamping slit 22 as it is, and the outer insulating layer 2 is cut off by the ground press-fitting slit 21, so that the drain wire 3 is deformed and gradually inserted into the ground press-fitting slit 21. The coaxial cable 1 is press-fitted and comes into close contact with the edge of the ground press-fitting slit 21, and the clamp slit 22 fits into the outer insulating layer 2 of the coaxial cable 1 to complete the clamping of the coaxial cable 1. [Effects of the Invention] The connection structure of the electric connector for a coaxial cable of the present invention is as follows.
Complete the terminal stripping process of the coaxial cable in one process,
Pressing the center conductor and drain wire of the coaxial cable into the signal pressure contact slit of the signal contact of the electrical connector and the ground pressure contact slit of the ground contact each completes the connection between the coaxial cable and the electrical connector, thus greatly reducing processing costs. Since the center conductor and the drain wire of the coaxial cable can be directly connected to the contacts of the electric connector, the electric loss can be minimized.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG.
FIG. 3 is a detailed perspective view of the electric connector shown in FIG. 1, FIG. 3 is a detailed perspective view of the electric connector shown in FIG. 1, FIG. FIG. 6 is a view taken along the line BB of the embodiment shown in FIG. 1, and FIG. 6 is a view taken along the line C-B of the embodiment shown in FIG.
FIG. 7 is a perspective view showing an example of the conventional art. 1 ... coaxial cable, 2 ... outer insulating layer, 3 ... drain wire, 4 ... outer conductor, 5 ... inner insulating layer, 6 ...
Center conductor, 20 ... Electric connector, 21 ... Ground press contact slit, 22 ... Clamping slit, 23 ... Ground contact, 24 ... Signal press contact slit, 25 ... Signal contact, 30
…… Printed board, 31 …… Electrical connector, 32 …… Ground contact, 33 …… Signal contact, 34 …… Ground lead-out piece,
35 ... Signal extraction piece.

──────────────────────────────────────────────────続 き Continued on the front page (56) References JP-A-57-30276 (JP, A) JP-A-60-59367 (JP, U) JP-A-59-170918 (JP, U) Field (Int.Cl. ⁶ , DB name) H01R 4/24 H01R 9/05

Claims (1)

(57) [Rules for requesting registration of utility model] A center conductor, an inner insulating layer provided on the outer periphery of the center conductor, an outer conductor covering the inner insulating layer in a lump, a drain wire extending in parallel with the center conductor with the inner insulating layer and the outer conductor interposed therebetween; The outer conductor, the drain wire, and the outer insulating layer are located at the same position so that only the center conductor and the inner insulating layer leave a fixed size at a terminal portion including the outer conductor and the outer insulating layer covering the drain wire. The peeled coaxial cable includes a ground contact having a ground pressure contact slit in which both the outer conductor and the drain wire are press-fitted, and the ground pressure contact slit in the state of the coaxial cable covered with the insulating layer. Position the coaxial cable in the direction in which the drain wire contacts, and press the coaxial cable against the ground pressure contact slit as it is. And an electric connector for connection with the coaxial cable when the electric connector is inserted.