JPH0590856U - Coaxial connector - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] A coaxial connector element and a coaxial connector element that can control the characteristic impedance and suppress crosstalk while avoiding the workability and the difficulty of tolerance management based on the coaxial connector element. The same coaxial connector that was used. [Structure] The coaxial connector has a socket side coaxial connector element SC and a pin side coaxial connector element PC. The socket-side coaxial connector element SC is composed of an insulator 1, a socket contact 3 which is open at an end surface of the insulator 1, and two flat plate portions 51 which are provided so as to expose a part of the insulator 1 around the axis of the insulator. And an outer contact 5. Also,
The pin-side coaxial connector element PC is provided so as to expose the insulator 2, the pin contact 4 axially protruding from the end surface of the insulator 2, and a part of the insulator 2 around the axis of the insulator 2. The outer contact 6 includes two flat plate portions 61.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connector, and more particularly to the structure of a pseudo-coaxial connector that transmits high-speed signals with good characteristic impedance matching and the effect of reducing crosstalk.

[0002]

[Prior Art]

 In the conventional coaxial connector, the coaxial connector element on the socket side is composed of a cylindrical outer contact 71, a central socket contact 73, and an insulator 75 interposed therebetween, as shown in FIG. 4 (a). .. The outer contact 71 is configured to cover the entire peripheral surface of the insulator 75.

Further, as shown in FIG. 4B, the coaxial connector element on the pin side includes a cylindrical outer contact 81 and a pin contact 83 arranged inside the outer contact 81 while ensuring insulation. It is configured. The outer contact 81 is formed with a slit 81s in the axial direction from the end thereof, and is provided with a spring property for obtaining a holding force when fitted to the peripheral surface of the socket-side outer contact 71. Has been done.

As described above, the external contacts 71, 81 and the center contact 73 have a cylindrical shape, and the characteristic impedance is determined by the diameter ratio and the dielectric constant of the insulator 75. In addition, since the center conductor of such a coaxial contact is shielded by the outer conductor, crosstalk can be suppressed.

[0005]

[Problems to be solved by the device]

 By the way, since the socket-side and pin-side external contacts of the conventional coaxial connector as described above have a cylindrical shape, one of the external contacts is deformed or the cross-sectional shape is formed into a perfect circle at the manufacturing stage. If not done, reliable connection cannot be made.

Although such deformation is allowed to some extent by the slot 81s of the pin-side contact 81, there is a limit to this. In other words, in the case of this type of contact, which is extremely small for use in precision equipment, this tolerance is extremely small and strict tolerance control (manufacturing accuracy) is required, making it difficult to process this type of connector. It is not only easy to handle, but also requires carefulness in handling, which complicates the workability of connector connection.

Therefore, one technical problem of the present invention is that while maintaining the advantages of the conventional coaxial connector as described above, it is possible to avoid the workability and the difficulty of the tolerance management based on the same. To provide a connector element.

Another technical object of the present invention is to provide a coaxial connector using the coaxial connector element.

[0009]

[Means for Solving the Problems]

 According to the present invention, a coaxial connector element including a center contact located on one axis, an outer contact located around the one axis, and an insulator fixing the center contact and the outer contact to each other is provided. A coaxial connector element is obtained which has a slit for contact insertion of the external contact of the mating coaxial connector element to be connected.

According to the present invention, the outer contact has two flat plate portions extending along two flat surfaces intersecting with each other around the one axis, and the slit is provided on each of the two flat plate portions. The resulting coaxial connector element is obtained.

According to the present invention, a coaxial connector element is obtained, in which the slits of the two flat plate portions are located symmetrically with respect to the one axis.

According to the present invention, a first center contact located on one axis, a first outer contact located around the one axis, and the first center contact and the first outer contact are provided. A first coaxial connector element including first insulators fixed to each other and a second coaxial connector element releasably connected to the first coaxial connector element, the second coaxial connector element comprising: A second center contact located on the one axis and in contact with the first center contact, a second outer contact located around the one axis and in contact with the first outer contact, and the second center contact A coaxial connector including a second insulator having a center contact and a second outer contact fixed to each other, the first and second outer contacts being provided. At least one of the two has a slit extending in parallel with the one axis, and the external contact of the mating coaxial connector element is inserted in contact with the slit to obtain a coaxial connector.

According to the present invention, each of the first and second outer contacts exists only in a part around the one axis, and the first and second outer contacts cooperate with each other. A coaxial connector characterized by being surrounded is obtained.

[0014]

[Action]

 In the present invention, when a pair of coaxial connector elements are axially inserted and connected to each other, one outer contact is brought into conductive contact with a predetermined portion of the other outer contact. Further, the conductive contact portion is surrounded and shielded around the axis. Furthermore, by forming a slit in the outer contact, the characteristic impedance can be controlled.

[0015]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1A and 1B are views showing a coaxial connector according to an embodiment of the present invention, and FIG. 1A shows a socket side coaxial connector element. (B) shows a pin side coaxial connector element. As shown in FIG. 1A, the socket-side coaxial connector element SC has a cylindrical insulator 1 in which a socket contact 3 having an opening at the end is built in. An outer contact 5 is provided on the outer side of the insulator 1. At the end of the outer contact 5 on the side to be connected to the mating connector, two flat plate portions 51, 51 intersect at the edge so as to form a bent plate so that the cross section has a V shape, and the outer periphery of the insulator 1 is formed. Inscribed in the face.

Slit-shaped slits 53 are formed on both flat plate portions 51, 51 of the outer contact 5 so as to extend in the axial direction, and are configured to have a spring property. The length of this slot 53 is set to about half the length of the flat plate portion 51. Needless to say, the size of the slot 53 is not limited to this. A cable clamper 7 for clamping and holding the coaxial cable is provided at the end of the socket side coaxial connector element SC opposite to the pin side socket connection side.

The pin side coaxial connector element PC is provided with a pin contact 4 projecting toward the mating connector in the center of a cylindrical insulator 2. An outer contact 6 is provided on the outer side of the insulator 2. The outer contact 6 has a bent plate shape in which the two flat plate portions 61, 61 are bent so that the end portion on the side to be connected with the mating connector has a V-shaped cross section. It is inscribed on the outer peripheral surface. The flat plate portion 61 of the outer contact 6 is arranged so as to face the flat plate portion 51 of the socket side coaxial connector element SC.

The flat plate portion 61 of the outer contact 6 is formed with slit-like slits 63 extending in the axial direction, respectively, so as to have a spring property. The length of the slot 63 is set to about half the length of the flat plate portion 61. Needless to say, the size of the slot 63 is not limited to this. A cable clamper 8 for clamping and holding a coaxial cable is provided at the end of the pin side coaxial connector element PC opposite to the socket connection side.

FIG. 2 shows a state in which the socket side coaxial connector element SC and the pin side coaxial connector element PC shown in FIGS. 1A and 1B are connected. That is, the socket side coaxial connector element SC and the pin side coaxial connector element PC are brought close to each other from the state shown in FIGS. 1A and 1B, and the pin contact 4 of the pin side coaxial connector element PC is socketed. The side coaxial connector element SC is fitted into the socket contact 3.

At this time, the flat plate portions 51 and 61 of the both outer contacts 5 and 6 engage with each other through the slits 53 and 63 to enclose the socket contact 3 and the pin contact 4, which are inner conductors, in a box shape. Therefore, the characteristic impedance can be changed by changing the forming positions of the slots 53 and 63 to change the size of the box shape and the shape of the inner conductor.

In FIG. 2, reference numeral 21 is an outer conductor of the coaxial cable, reference numeral 23 is an insulator of the coaxial cable, reference numeral 25 is an inner conductor of the coaxial cable, and reference numeral 26 is an outer cover of the coaxial cable.

FIG. 3 shows a state in which the pin side coaxial connector elements PC shown in FIGS. 1 and 2 are juxtaposed in the connector housing H. According to the present invention, crosstalk between adjacent connectors is suppressed even when the connectors are arranged side by side in this way.

[0023]

[Effect of the device]

 As described above, according to the present invention, since both outer contacts of the coaxial connector element that are detachably connected to each other are not formed in a circular shape (cylindrical shape) as in the conventional one, processing in the manufacturing stage is performed. The connection is easy, and even if the manufacturing accuracy drops slightly, it does not hinder the connection.

Moreover, according to the present invention, when both coaxial connector elements are connected, the inner conductors are bent and shielded by the outer contacts, so that crosstalk is suppressed as in the conventional case. It becomes possible.

Further, according to the present invention, it is possible to change the characteristic impedance only by changing the shape of the outer contact and the slit forming position, which is the meshing position. It is possible to provide a coaxial connector capable of controlling impedance.

[Brief description of drawings]

1A and 1B are explanatory views showing a coaxial connector according to an embodiment of the present invention, in which FIG. 1A is a perspective view showing a socket side coaxial connector element, and FIG. 1B is a perspective view showing a pin side coaxial connector element. Is.

FIG. 2 is a cross-sectional view showing a connection state between the socket side coaxial connector element and the pin side coaxial connector element of FIGS. 1 (a) and 1 (b).

FIG. 3 is an explanatory view showing one usage state of the coaxial connector according to the embodiment of the present invention, and is a perspective view showing a state in which pin side coaxial connector elements are juxtaposed in a connector housing.

FIG. 4 is an explanatory view showing a conventional coaxial connector,
(A) is a perspective view showing a socket-side coaxial connector element,
(B) is a perspective view showing a pin side coaxial connector element.

[Explanation of symbols]

 1 Insulator 2 Insulator 3 Socket contact 4 Pin contact 5 Outer contact 6 Outer contact 7,8 Cable clamper 21 Outer conductor of coaxial cable 23 Insulator of coaxial cable 25 Inner conductor of coaxial cable 26 Outer sheath of coaxial cable 51, 61 Bending of outer contact Plate 53,63 Slot

Claims (5)

[Scope of utility model registration request] 1. A coaxial connector element comprising a center contact located on one axis, an outer contact located around the one axis, and an insulator fixing the center contact and the outer contact to each other, wherein the outer contact is a connection. A coaxial connector element having a slit for inserting and inserting an external contact of a target mating coaxial connector element. 2. The outer contact has two flat plate portions extending along two planes intersecting with each other around the one axis, and the slit is formed in each of the two flat plate portions. The coaxial connector element according to claim 1. 3. The coaxial connector element according to claim 2, wherein the slits of the two flat plate portions are located symmetrically with respect to the one axis. 4. A first center contact located on one axis, a first outer contact located about said one axis,
And a first coaxial connector element including a first insulator fixing the first center contact and the first outer contact to each other, and a second coaxial connector element detachably connected to the first coaxial connector element. A coaxial connector element, the second coaxial connector element having a second center contact located on the one axis and in contact with the first center contact, and a second outer contact located about the one axis. A coaxial connector including a second outer contact in contact with the second center contact, and a second insulator fixing the second center contact and the second outer contact to each other. At least one has a slit extending parallel to the one axis, and an external contact of the mating coaxial connector element is inserted into the slit by contact insertion. Coaxial connector characterized by being. 5. The first and second outer contacts are present only in a part around the one axis, and the first and second outer contacts cooperate to surround the one axis. The coaxial connector according to claim 2, wherein the coaxial connector is provided.