JPH067174U - Coaxial connector and case with the same connector - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] The attachment direction of the coaxial connector is fixed to a fixed direction and fixed to the case body, and the attachment is facilitated. [Configuration] The outer conductor 21 is formed on a part of the peripheral surface of the base of the outer conductor 21.
Of the seat 12 is formed with a step portion 26 having a contour that matches the side surface contour shape of the projection portion 25. The mounting hole 12 is the pedestal 23.
It has substantially the same contour as, and has a step 13 at a position corresponding to the step 26. When the pedestal 21 is inserted into the mounting hole 12 with the contours of the pedestal 21 and the mounting hole 12 aligned, the projection 2
The outer conductor 21 can be turned only on the opposite side since the step 5 hits the step 13 of the mounting hole 12. Then, since the pedestal 23 and the mounting hole 12 are non-circular, the contours are displaced and do not match. In this state, the nut 28 is tightened in the thread groove 27 to fix the coaxial connector to the case body 11.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a coaxial connector used for inputting and outputting a signal to, for example, a high frequency circuit via a coaxial cable terminal, and a case with a coaxial connector to which the coaxial connector is attached.

[0002]

[Prior art]

 In order to input / output signals to / from a high-frequency circuit device via a coaxial cable, a coaxial connector is fitted into a mounting hole provided in a case body such as a shield case and fixed with a screw. This type of coaxial connector consists of a plate-shaped pedestal, a cylindrical outer conductor projecting from one main surface of this pedestal, and the central axis of the outer conductor while being insulated from this outer conductor. The outer conductor is provided with a central conductor which is disposed above and penetrates behind the pedestal, and a screw groove for screwing is formed on the outer periphery of the outer conductor. Conventionally, when attaching this coaxial connector to the case body, the outer conductor of the coaxial connector is fitted from the inside of the case body into the mounting hole that is slightly larger in diameter than the outer conductor, and the screw fitted from the tip side of the outer conductor is used as described above. The coaxial connector was fixed to the case body by screwing it into the thread groove and tightening it.

However, when the high-frequency circuit device is downsized or is highly functionalized and the layout of the inner portion of the case body is overcrowded, the coaxial connector may not be inserted into the mounting hole from the inside of the case body. Even if the coaxial connector can be inserted from the inside of the case body, it must be carefully inserted without damaging the internal board, parts, wiring, etc., and the space for insertion is narrow. Therefore, there is a problem that workability is poor.

Therefore, it is desired that the coaxial connector can be attached from the outside of the case body, and for example, the attachment structure shown in FIGS. 7 and 8 is adopted. That is, in FIG. 7, reference numeral 5 is a rectangular plate-shaped pedestal of the coaxial connector, reference numeral 4 is a cylindrical outer conductor protruding from one main surface of the pedestal 5, and reference numeral 4 is this outer surface. The central conductor 4 is arranged on the central axis of the outer conductor 3 while being insulated from the conductor 3, and penetrates behind the pedestal 5. Reference numeral 2 is a mounting hole provided in the side plate portion of the case body 1 where the coaxial connector is to be mounted. The mounting hole 2 is formed in a rectangular shape slightly larger than the pedestal 5. There is. As shown by the arrow in Fig. 7, insert the pedestal 5 from the outside of the case body 1 into the mounting hole 2 in the direction indicated by the arrow with the corners of the pedestal 5 aligned, and in this state, place the coaxial connector around the center of the outer conductor 3. Rotate about 45 °. Then, as shown in FIG. 8, the nut 6 is fitted from the tip side of the outer conductor 3, and the nut 6 is screwed into the thread groove 7 of the outer conductor 3 and tightened. As a result, the case body 1 is clamped by the screw 6 screwed to the outer conductor 3 and the pedestal 5 and fixed to the case body 1.

[0005]

[Problems that the device is trying to solve]

 However, in the conventional mounting structure of the coaxial connector, the mounting angle of the coaxial connector to the case body is not stable. Therefore, as shown in FIG. 8, the inner conductor 4 protruding from the pedestal 5 is fixed in various directions, and is connected to a circuit (not shown) provided inside the case body 1. Will cause problems. Also, after inserting the coaxial connector into the mounting hole 2 of the case body 1 and the nut 6 has not been tightened yet, the coaxial connector will fall out of the case body and will come off inside or outside of the case body. The coaxial connector must be held until it is fully tightened. Therefore, the step of inserting the coaxial connector into the mounting hole 2 of the case body 1 and the step of tightening the nut cannot be performed in separate steps, and the steps cannot be subdivided. For this reason, the process of attaching the coaxial connector to the case body becomes a bottleneck, and there is a problem that it is difficult to increase the productivity of the assembly line of the high-frequency circuit device.

In view of the problems of the conventional coaxial connector and the structure for mounting the coaxial connector on the case body, the present invention can fix the coaxial connector on the case body by fixing the mounting direction to a fixed direction, and the mounting is easy. We provide a coaxial connector and a case with the same connector.

[0007]

[Means for Solving the Problems]

 That is, in the present invention, in order to achieve the above-mentioned object, a plate-shaped pedestal 23, a cylindrical outer conductor 21 protruding from one main surface of the pedestal 23, and the outer conductor 21 are provided. A coaxial connector, which is arranged on the central axis of the outer conductor 21 in an insulated state, has a central conductor 22 penetrating behind a pedestal 23, and has a thread groove 27 formed on the outer periphery of the outer conductor 21. A protrusion 25 projecting in the radial direction of the outer conductor 21 is formed on a part of the peripheral surface of the base of the outer conductor 21, and the pedestal 12 has a part of the side face contour shape of the protrusion 25. A coaxial connector comprising a non-circular body having a step portion 26 having a contour.

In this case, a groove 24 is formed on the peripheral surface of the base portion of the outer conductor 21, and a part of the groove 24 has a groove width substantially the same as the plate thickness of the case body 11 to be attached. The other part of the groove 24 has a groove width wider than the plate thickness of the case body 11. Further, the leads of the screw groove 27 formed on the peripheral surface of the outer conductor 21 rotate toward the side opposite to the side surface of the protrusion 25 whose side surface shape matches the part of the pedestal 23, and thus the tip of the outer conductor 21. It is advisable to proceed from to the proximal side. Further, according to the present invention, in the case where the coaxial connector is attached to the case body, the attachment hole 12 of the case body 11 has the same contour shape as the pedestal 23, and the pedestal 23 is attached to the case body 11. The case body 11 is fixed between the pedestal 23 and the nut 28 screwed into the thread groove 27 formed on the outer periphery of the outer conductor 21. We provide a coaxial connector.

[0009]

[Action]

 In the coaxial connector according to the present invention, a protrusion 25 protruding in the radial direction of the outer conductor 21 is formed on a part of the peripheral surface of the base of the outer conductor 21, and the pedestal 12 has a protrusion on the part thereof. Since the stepped portion 26 having a contour that matches the side surface contour shape of 25 is provided, if the pedestal 21 is inserted into the mounting hole 12 with the contours of the pedestal 21 and the mounting hole 12 aligned, It can be inserted from the outside of the body 11 into its inside. In this state, the projection 25 provided on the base of the outer conductor 21 hits the step 13 of the mounting hole 12 corresponding to the step of the pedestal 23, and the outer conductor 21 cannot be turned toward the same step 13. . Therefore, the outer conductor 21 is necessarily turned to the opposite side. When rotated in this manner, the pedestal 23 and the mounting hole 12 are non-circular, and thus the contours do not coincide with each other with an angular deviation of a certain degree. In this state, the nut 28 is fitted to the outer conductor 21, and the nut 28 and the pedestal 23 hold the case body 11 by fitting the nut 28 into the thread groove 27 and tightening the nut 28 and the coaxial connector to the case body 11. Fixed. In this way, the coaxial connector is fixed to the case body 11 only when it is rotated in a certain direction.

Further, a groove 24 is formed on the peripheral surface of the base portion of the outer conductor 21, and a groove width of one part of the groove 24 is substantially the same as the plate thickness of the case body 11 to be mounted, and the other part of the groove 24 is a groove. When the groove width is wider than the plate thickness of the base body 11, the base portion of the mounting hole 12 of the case body 11 can be sandwiched by the narrow portion of the groove 24. Therefore, the coaxial connector can be temporarily fixed to the case body before the nut 28 is screwed. Further, as the lead of the thread groove 27 formed on the peripheral surface of the outer conductor 21 is rotated to the side opposite to the side surface of the protrusion 25 having the same side shape as the part of the pedestal 23, the tip of the outer conductor 21 is rotated. When the nut 28 is screwed into the thread groove 27 and tightened, the pedestal 23 shifts from the contour of the mounting hole 12 while applying a rotational force in a direction to rotate. The nut 28 can be tightened and fixed.

[0012]

【Example】

 Next, an embodiment of the present invention will be described in detail with reference to the drawings. 1 to 4 show a first embodiment of the present invention. A cylindrical outer conductor 21 is projected from one main surface of a plate-shaped pedestal 23, and the central conductor 22 is arranged on the central axis of the outer conductor 21 while being insulated from the outer conductor 21. ing. One end of the central conductor 22 penetrates behind the pedestal 23 and is bent into an L shape as shown in FIG.

A groove 24 is formed around the base of the outer conductor 21 rising from the pedestal, and a semicircular projection 25 is provided in a radial direction of the outer conductor 21 from a part of the peripheral surface of the groove 24. ing. Further, the pedestal 12 adjacent to the groove 24 has a step portion 26 having a contour that matches the side contour of the protrusion 25 on a part of the pedestal 12, and the whole of the non-circular body approximate to a diamond shape. Become. Further, a thread groove 27 is formed on the peripheral surface of the outer conductor 21 on the tip side of this groove 24. The lead of this thread groove 27 is a part of the pedestal 23 and a protrusion 25 whose side surface shape is the same. As the outer conductor 21 rotates to the side opposite to the side face, the outer conductor 21 advances from the front end to the base end.

On the other hand, a mounting hole 12 is formed on the side surface of the case body 11 to which the coaxial connector is to be mounted. The mounting hole 12 has substantially the same contour as the pedestal 23 and is formed to be slightly larger than the pedestal 23. The mounting hole 12 has a step 13 at a position corresponding to the step of the pedestal 23.

A procedure for attaching the coaxial connector 21 to the case body 11 will be described below. First, as shown in FIGS. 1 and 4, the contour of the pedestal 23 is matched with the contour of the mounting hole 12, and the pedestal 23 is inserted from the outside of the case body 11 into the inside of the case body 11 through the mounting hole 12. Then, when the groove 24 reaches the position of the mounting hole 12, the coaxial connector is rotated. The rotation direction is the right direction in FIG. That is, when the groove 24 reaches the position of the mounting hole 12 as described above, the semicircular projections 25, 25 hit the stepped portion 13 of the mounting hole 12, so that the coaxial connector is rotated counterclockwise in FIG. It cannot rotate, but can rotate only to the right in FIG. When the coaxial connector is rotated in this manner, the pedestal 23 and the mounting hole 12 are non-circular, and thus the contours are displaced from each other by an angle such that they do not coincide with each other. Therefore, in this state, the nut 28 is fitted into the outer conductor 21, and the nut 28 and the pedestal 23 hold the case body 11 by fitting the nut 28 into the thread groove 27 and tightening the nut 28, and the coaxial connector is connected to the case body. It is fixed at 11.

The lead of the screw groove 27 formed on the peripheral surface of the outer conductor 21 rotates on the side opposite to the side surface of the protrusion 25 having the same side shape as the part of the pedestal 23, and the lead of the outer conductor 21 is rotated. Since the nut 28 is advanced from the distal end to the proximal end, when the nut 28 is tightened in the thread groove 27, the coaxial connector is fixed as described above, so that the nut 28 can be tightened while applying a rotational force in the direction to rotate.

Next, the embodiment shown in FIG. 5 will be described. Here, a part of the groove 24 is a narrow portion 29 which is set to be substantially the same as the plate thickness of the case body 11 or slightly narrower than it. The other part of the groove 24 is slightly wider than the plate thickness of the case body 11. Then, as shown in FIG. 5, the narrow portion 29 has the pedestal 23 and the pedestal 23 when the coaxial connector is rotated in a predetermined direction after the pedestal 23 side is fitted into the case body 11 through the mounting hole 12. It is provided at a position where the case body 11 is sandwiched between them. As a result, the coaxial connector can be temporarily fixed in the mounting hole 12 before the nut 28 is screwed into the thread groove 27 and tightened.

Next, the embodiment of FIG. 6 will be described. In this embodiment, two protrusions 25 provided on the base of the outer conductor 21 are symmetrically provided. Accordingly, the pedestal 23 and the mounting hole 12 are also formed in point symmetry with respect to the center. The other structure is substantially the same as that of the above-mentioned embodiment.

[0019]

[Effect of device]

 As described above, according to the present invention, it is possible to provide a coaxial connector and a case with the same connector, which can fix the coaxial connector in a fixed direction and fix it to the case body.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a main part of a case with a coaxial connector showing an embodiment of the present invention.

FIG. 2 is a side view of a main part of a case with a coaxial connector, which is a cross-sectional view of the case body according to the embodiment.

FIG. 3 is a front view of a main part of a case with a coaxial connector showing the embodiment.

FIG. 4 is an exploded perspective view of a main part of a case with a coaxial connector showing the same embodiment.

FIG. 5 is a side view of a main part of a case with a coaxial connector in which a case body according to another embodiment of the present invention is shown in section.

FIG. 6 is a front view of a main part of a case with a coaxial connector showing still another embodiment of the present invention.

FIG. 7 is an exploded perspective view of a main part of a case with a coaxial connector showing a conventional example.

FIG. 8 is a side view of a main part of a case with a coaxial connector, which is a cross-sectional view of a case body showing a conventional example.

[Explanation of symbols]

 11 Case Body 12 Mounting Hole 21 Outer Conductor 22 Center Conductor 23 Pedestal 24 Groove 25 Projection Part 26 Step Part 27 Screw Groove 28 Nut 29 Narrow Part

Claims (4)

[Reference number] 0040128-01 [Claims for utility model registration] 1. A plate-shaped pedestal, a cylindrical outer conductor projecting from one main surface of the pedestal, and an insulator arranged on the central axis of the outer conductor in an insulated state. In the coaxial connector having a central conductor penetrating behind the pedestal and having a thread groove formed on the outer periphery of the outer conductor, a radial direction of the outer conductor is provided in a part of the peripheral surface of the base portion of the outer conductor. A coaxial connector, wherein a protruding portion is formed, and the pedestal is made of a non-circular body having a step portion having a contour that matches a side surface contour shape of the protruding portion in a part thereof. 2. The groove according to claim 1, wherein a groove is formed on a peripheral surface of a base portion of the outer conductor, and a part of the groove has a groove width substantially equal to a plate thickness of a case body to be attached. A coaxial connector characterized in that the groove width of the other part is wider than the plate thickness of the case body. 3. The lead of the screw groove formed on the peripheral surface of the outer conductor as set forth in claim 1, is externally rotated as it rotates to the side opposite to the side surface of the protrusion whose side surface shape matches a part of the pedestal. A coaxial connector characterized by progressing from the tip of the conductor to the base side. 4. A plate-shaped pedestal, a cylindrical outer conductor protruding from one main surface of the pedestal, and arranged on the central axis of the outer conductor in an insulated state from the outer conductor. And a central conductor penetrating behind the pedestal, the pedestal is inserted into a mounting hole provided in the case body, and the nut and the pedestal screwed into a thread groove formed on the outer periphery of the outer conductor. In a case with a coaxial connector fixed with a case body sandwiched therebetween, a protrusion projecting in the radial direction of the outer conductor is formed on a part of the peripheral surface of the base portion of the outer conductor, and the pedestal is formed on a part thereof. A case with a coaxial connector, comprising a non-circular body having a step portion having a contour that matches the side surface contour shape of the protrusion, and the mounting hole of the case body has the same shape as the contour shape of the pedestal. .