JPH0341425Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention is applicable, for example, to semiconductor IC test equipment, especially semiconductor test equipment that uses high frequency test signals, when a coaxial transmission line is used to transmit and receive a large number of test signals. The present invention relates to a coaxial multipolar connector used to connect a large number of coaxial lines.

"Prior Art" Conventionally, in this type of coaxial multi-pole connector, the center conductor and outer conductor of each coaxial connector are friction-fitted with the corresponding ones of the mating coaxial connector, and the pressure contact force causes them to electrically connect to each other. connected. For this reason, as the number of poles, that is, the number of coaxial connectors increases, a greater force is required to connect the coaxial multi-pole connectors to each other, making it difficult to connect and disconnect them. Further, it is desired that high frequency characteristics are not impaired in the mutually coupled portions of this coaxial connector, and that good electrical contact be made. However, if the connecting parts of multiple coaxial connectors are shifted from the same plane, some coaxial connectors will be connected correctly if they are all moved by the same amount and connected, but some will be inserted only slightly. High frequency characteristics may be impaired.

"Means for Solving the Problem" According to this invention, the mutually coupled ends of the plurality of first coaxial connectors have the same axial direction, are arranged on substantially the same plane, and are fixed to each other. has been done.
Further, the plurality of second coaxial connectors to be coupled to the first coaxial connector are fixed to each other so that their opposing ends are substantially on the same plane. Coaxial movable bodies are fitted at both ends of each of the opposing first and second coaxial connectors so that they can be movably coupled. In other words, by moving the coaxial movable body and separating the coaxial movable body from the first coaxial connector or the second coaxial connector, the connection between the first coaxial connector and the second coaxial connector is separated, or both ends of the coaxial movable body are separated from each other. by fitting the first and second coaxial connectors into the first and second coaxial connectors.
A second coaxial connector is coupled. In this case, by moving the coaxial movable bodies one by one or a plurality of them at a time, it is possible to easily connect and detach with a weaker force than when all the coaxial movable bodies are connected at the same time.

"Embodiment" FIG. 1 shows an embodiment of the coaxial multi-pole connector according to this invention. A plurality of first coaxial connectors 12 are mutually connected and held on the fixed plate 11 . The axes of the ends of the first coaxial connectors 12 on the coupling side are parallel to each other, and one end of the first coaxial connectors 12 is located substantially on the same plane. On the other hand, the second coaxial connectors 13 to be coupled thereto are mutually fixed to a fixing plate 14, and each of the second coaxial connectors 14 faces the first coaxial connector 12, and the axis of the opposing end thereof is It is located approximately on the same line as the corresponding axis of the first coaxial connector 12, and its coupling side surface is approximately the same plane. A coaxial movable body 15 is provided, which can fit both ends of each of the opposing first and second coaxial connectors 12 and 13 into each other.

FIG. 2 shows a set of cross sections of the first coaxial connector 12, the second coaxial connector 13, and the coaxial movable body 15. In this example, the first coaxial connector 12 is a female connector, and an outer conductor 18 is coaxially provided on the central moving body 16 via a dielectric layer 17, and a coupling hole is provided at the center of the end surface of the central conductor 16. 19
The central movable body of the coaxial movable body 15 can be fitted into this coupling hole.
The outer conductor 18 protrudes beyond the end surface of the dielectric layer 17 and has a small inner diameter to form a fitting portion 21 .

The coaxial movable body 15 has a dielectric layer 2 on the center conductor 23.
4, an outer conductor 25 is provided, and the center conductor 2
3 are inserted portions 23a and 23b that protrude from both ends. The insertion portion 23a is sized to fit and be inserted into the coupling hole 19 of the first coaxial connector,
In order to improve the contact, a collar 26 is formed on the inner periphery of the open side of the coupling hole 19. female connector 12
For example, when the characteristic impedance of
This insertion part 2 is inserted into the fitting hole 19 of
The inner diameter of the fitting portion 21 and the outer diameter of the insertion portion 23a are selected so that the coaxial characteristic impedance of the fitting portion 3a and the fitting portion 21 is 50Ω. Since this fitting part 21 does not have a dielectric material and is in the air, the inner diameter of the fitting part 21 is equal to the diameter of the dielectric layer 1 of the outer conductor 18.
It is made smaller than the inner diameter of the portion where No. 7 exists.

Also, the characteristic impedance of the coaxial movable body 15 is 50
In this case, since the outer conductor 25 is inserted into the fitting part 21, its diameter is made smaller than the outer conductor 18, so that the diameter of the center conductor 23 is also made smaller than the diameter of the center conductor 16. , and the dielectric constant of the dielectric layer 24 is selected to be large. Outer conductor 2
A collar 27 is provided on the outer periphery of the outer conductor 25 so that the fitting between the outer conductor 5 and the fitting portion 21 provides a good electrical connection with sufficient pressure contact force.

In this example, the second coaxial connector 13 is also a female connector. In other words, in this example, the coaxial movable body 15 is a female connector, and
In the second coaxial connector 13, an outer conductor 33 is provided to a center conductor 31 via a dielectric layer 32, and the outer conductor 33 protrudes from the dielectric layer 32.
In addition, the inner diameter of the protruding end portion is made small to form the fitting portion 34.
The outer conductor of the coaxial movable body 15 can be fitted and inserted into this fitting portion 34. A coupling hole 35 is formed at the center of the end surface of the center conductor 31, and the insertion portion 23 of the coaxial movable body 15 is inserted into the coupling hole 35.
b can be fitted and inserted. In this case as well, the characteristic impedance of the joint between the second coaxial connector 13 and the coaxial movable body 15 is set to 50Ω so that the characteristic impedance is kept constant. In addition, in the figure, when the coaxial movable body 15 is deeply connected to the first coaxial connector 12 side, the connection with the second coaxial connector 13 is disconnected, and conversely, when the coaxial movable body 15 is deeply connected to the second coaxial connector 13, the coaxial movable body 15 is disconnected from the second coaxial connector 13. The axial dimensions of the coaxial movable body 15 are selected so that the coaxial movable body 15 can be disconnected from the coaxial connector 12.

In this way, the coaxial movable body 15 is moved in the axial direction to connect the first coaxial connector 12 and the second coaxial connector 13.
It is possible to couple them together via the coaxial movable body 15, or to remove the coupling. In this case, by moving the coaxial movable bodies 15 one by one, for example by hand, it is possible to connect or release the connection with a weak force.

For example, as shown in FIG. 1, a pair of protrusions 38 arranged in the axial direction are provided on the outer circumferential surface of the coaxial movable body 15 at approximately the same position as required, and a drive shaft 39 is connected to the coaxial movable body 15. Drive pins 4 arranged along the array and protruding from the drive shaft 39
1 is inserted between a corresponding pair of protrusions 38. By rotating the drive shaft 39 in this state, the coaxial movable body 15 is moved between the drive pin 41 and the protrusion 38.
can be moved in the axial direction. Drive shaft 39
may be held in the fixed part 11 so as to be rotatable, or the drive shaft 39 may be arranged along the coaxial movable body arrangement each time the coaxial movable body 15 is moved, and the movement of the coaxial movable body may be controlled. You may also do so. In this way, a plurality of coaxial movable bodies 15 can be moved simultaneously little by little within a range that does not require a very strong force. The work of connecting and disconnecting everything from the coaxial connector becomes faster.

Although the coaxial movable body 15 is configured as a male connector in the above description, the coaxial movable body 15 may be a female connector as shown in FIG. In this case, as shown in FIG. 3, the coaxial movable body 15 has coupling holes 44 and 45 formed at the centers of both ends of the center conductor 23, and the dielectric layer 24 is made thicker than in the case of FIG. Accordingly, the center conductor 23 is also thickened,
The outer conductor 25 has a large diameter, its both ends protrude from the dielectric layer 24, and its inner diameter is reduced to form fitting portions 46 and 47, respectively. The first coaxial connector 12 and the second coaxial connector 13 can insert and fit each outer conductor into the fitting portions 46 and 47, and the connecting portions 16a and 31a of the center conductor protruding from each end surface are connected to the connecting hole 44, 45. As in the case of FIG. 2, the characteristic impedances of the first coaxial connector 12, the second coaxial connector 13, the coaxial movable body 15, and the joints therebetween are made equal.

``Effect of the invention'' As mentioned above, according to the coaxial multi-pole connector of this invention, even when the number of pins is large, it is possible to achieve a large The first coaxial connector and the second coaxial connector can be easily connected to or separated from each other without requiring any force, and in this case, the first and second coaxial connectors and the coaxial movable body Since the characteristic impedances are the same, a good electrical connection is achieved at this joint portion. Even if there is some variation in the protruding states of the first and second coaxial connectors with respect to the fixed parts 11 and 14, by shifting the moving position of the coaxial movable body, the first coaxial connector and the second coaxial connector can be connected to all of them. It can be bonded well. This invention can be applied to connections between various coaxial connectors, such as connections between coaxial cables and connections between coaxial cables and coaxial connectors attached to wiring boards.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view showing an example of a coaxial multipolar connector according to this invention, and FIG. 2 is a cross-sectional view showing an example of a coupled state of a pair of the first coaxial connector, second coaxial connector, and coaxial movable body, FIG. 3 is a sectional view showing another example.

Claims (1)

[Scope of Claim for Utility Model Registration] A plurality of first coaxial connectors that are fixed to each other, whose axial centers are in the same direction, and whose one ends are substantially on the same plane; a plurality of second coaxial connectors whose ends are substantially on the same plane and are fixed to each other; and a plurality of second coaxial connectors whose ends are respectively fitted and connected to the first and second coaxial connectors and which are movable in the axial direction. A coaxial multi-pole connector consisting of a movable coaxial body.