JPH08138802A - Coaxial connector and mounting method therefor - Google Patents

Abstract

PURPOSE: To enable easy mounting on an apparatus such as a wave distributor or a signal distributor for transmitting electric signals in a CATV system. CONSTITUTION: A deformable part is formed in a chassis 1 of distributor or the like along one side of a square hole 2. A connector main body 8 of a coaxial connector is provided with a first contact part abutting on a surface of the chassis 1 and having the size larger than the square hole and a second contact part abutting on the other surface and having the size smaller than the square hole, and an engaging groove 16 formed between both contact parts. The connector main body 8 is inserted in the square hole 2, then the abutting surface of the first contact parts is made to abut on one surface of the chassis 1, and the main body 8 is moved in parallel with the abutting surface and the groove 16 is fitted to the chassis 1. The deformable part 3 is deformed thereafter.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used as an input terminal or an output terminal of a device such as a distributor or a duplexer for transmitting an electric signal in a CATV or the like, and is a coaxial plug provided at the end of a coaxial cable. And a method for attaching the coaxial connector to the chassis of the device.

[0002]

2. Description of the Related Art A coaxial connector is mounted as an input terminal / output terminal on a chassis of a device that handles electric signals of this type. The conventional mounting structure will be described with reference to FIG. In this figure, 01 is a coaxial connector, 0
2 is a connector body, 03 is a male screw portion formed on the outer peripheral surface of the connector body 02, 04 is a chassis of a device for transmitting electric signals such as a distributor and a duplexer, and 05 is a chassis 04. A hole, 07 is a washer, and 09 is a nut.

To attach the coaxial connector 01 to the chassis 04, first, the connector body 02 of the coaxial connector 01 is inserted into the hole 05 of the chassis 04.
Then, the washer 07 is fitted into the male screw portion 03 of the connector body 02, and then the nut 09 is screwed in. In this way, the coaxial connector 01 is nut-fastened to the chassis 04.

The chassis 0 is mounted by using such a mounting method.
FIG. 13 shows a configuration in which a plurality of coaxial connectors 01 are attached to No. 4. As shown in this figure, chassis 0
Two coaxial connectors 01 are attached to the opposite side plates of No. 4, but a circuit board in which a circuit for demultiplexing or distributing the signal input from the coaxial connector 01 is assembled inside the chassis 04. Is to be stored. And this circuit board is chassis 0
A plurality of board receiving ribs 06 are formed inside the side plate of the chassis 04 so as to contact and support the circuit board when the board is accommodated in the chassis 4.

[0005]

However, if the coaxial connector 01 is attached by the nut tightening structure, parts such as the washer 07 and the nut 09 are required, and the number of parts is increased. Further, in order to tighten the nut, a step of inserting the washer 07 and a step of rotating the nut 09 are required, which requires a large number of assembling steps, and the rotation of the nut 09 requires a long working time. In particular, as shown in FIG. 13, in order to attach a large number of coaxial connectors 01 to the chassis 04, the coaxial connectors 01 must be attached by tightening the nuts one by one, which causes a problem that the working time becomes great. there were. Further, when the coaxial plug is screwed into the male screw portion 03, the coaxial connector 01 tends to rotate due to the rotation of the coupling nut of the coaxial plug, and the loosening of the fixing tends to cause looseness.

Further, the coaxial connector 01 is a chassis 0
Since the coaxial connector 01 is attached to the hole 05 formed in the side plate of No. 4 from the inside of the chassis 04, the coaxial connector 01 does not hit the board receiving rib 06 at the time of insertion. To form. Therefore, at least the distance of the width d2 of the board receiving rib 06 and the coaxial connector 01 are set to the chassis 0.
4, the distance d1 between the center of the coaxial connector 01 and the inner surface of the chassis 04 increases. That is, since the coaxial connector 01 cannot be attached to the corner portion of the chassis 04, the chassis 04 cannot be downsized.

Therefore, an object of the present invention is to provide a coaxial connector which can be easily attached to a device such as a distributor or a duplexer for transmitting an electric signal in a CATV or the like. Another object of the present invention is to provide a method for mounting a coaxial connector that does not cause backlash and the like and that can perform a plurality of mounting operations at the same time, and a method for mounting a coaxial connector that can downsize a chassis. .

[0008]

To achieve the above object, a coaxial connector according to the present invention has a cylindrical connector body, a center contact to which an electric signal is input, and a substantially central line of the connector body. In a coaxial connector that is equipped with an insulator that arranges a center contact, and is attached to a mounting hole provided in a chassis of a device,
While contacting one surface of the chassis, the first contact portion having a size that cannot pass through the mounting hole, and the other surface of the chassis when sliding through the mounting hole, A second contact portion formed on the end side of the one contact portion and a chassis plate that is formed between the first contact portion and the second contact portion and that forms the chassis is sandwiched. The engaging groove is provided in the connector body.

Further, in the coaxial connector, the mounting hole is a substantially square hole, and further,
The engagement groove that holds the chassis plate is formed in the lower end portion of the second contact portion and the inclined portions of both upper shoulders. Further, the engagement groove may be narrowed toward the groove bottom.

Next, according to the coaxial connector attaching method of the present invention for attaching the coaxial connector of the present invention, a cylindrical connector body, a center contact for inputting an electric signal, and a center of the center of the connector body on a substantially center line. In a method of mounting a coaxial connector having an insulator for arranging a contact in a mounting hole provided in a chassis of a device, the mounting hole provided in the chassis is a substantially square hole, and A deformable portion is formed on the chassis along one side of the mounting hole, and the connector body contacts the one surface of the chassis and has a first contact portion larger than the mounting hole, and A second contact portion that is capable of contacting the other surface and is formed on the end side of the first contact portion that is slightly smaller than the mounting hole, and the first contact portion. An engaging groove formed between the second contact portion and the second contact portion, the coaxial connector is inserted into the mounting hole of the chassis from the side where the second contact portion is disposed, and the first contact portion is contacted. The first step of bringing the surface into contact with one surface of the chassis, and thereafter moving the coaxial connector parallel to the contact surface of the first contact portion so that the second contact portion contacts the other surface of the chassis. From the second step of engaging the engagement groove with the chassis by contacting, and the third step of deforming the deformable portion toward the central portion of the hole of the chassis after the second step. It was made to become.

Further, in the coaxial connector mounting method, the engaging grooves formed in the lower end portion of the second contact portion and the inclined portions of both upper shoulders form the chassis during the second step. The chassis plate is sandwiched between the deformable parts, and the square holes are provided in the chassis so that the deformable parts face each other, and the deformable parts are provided in the vicinity of the deformable parts. The opening for deforming the groove is formed, and the engaging groove may be narrowed toward the groove bottom.

Further, in the coaxial connector mounting method, the deformable portion projects from the edge of the chassis and is a convex deformable portion having a flat top. The top portion of the convex deformable portion is deformed toward the hole of the chassis by the above, and when the third step is performed, the top portion of the convex deformable portion and the chassis are When the plurality of the square connectors are attached to the one side surface of the chassis, a plurality of the square holes are formed in the one side surface of the chassis, and the edges are substantially aligned with each other. The plurality of convex deformable portions are crimped.

[0013]

According to the present invention, the coaxial connector is inserted into the mounting hole of the substantially square hole formed in the chassis from the side where the second contact portion is arranged, and the contact surface of the first contact portion contacts one surface of the chassis. Contact
Then, the coaxial connector is slid to engage the engagement groove with the chassis. The deformable part is deformed toward the center of the mounting hole, and the coaxial connector can be attached to the chassis so that the coaxial connector does not come out of the mounting hole provided in the chassis. A connector can be attached.
Further, since the mounting hole is a substantially square hole, it is possible to prevent the coaxial connector from rotating when the coaxial plugs are connected and to prevent rattling.

Further, the coaxial connector can be firmly attached to the chassis by forming the engaging groove in the lower end and both upper shoulders. Furthermore, after mounting the coaxial connectors in the plurality of mounting holes formed in the chassis and sliding them, the respective deformable portions are simultaneously deformed by a jig, so that the plurality of coaxial connectors can be simultaneously mounted. Therefore, many coaxial connectors can be attached to the chassis in a short time. If the engaging groove is made narrower toward the groove bottom, the clamping force of the chassis by the engaging groove increases, and the coaxial connector can be more firmly attached to the chassis.

Furthermore, since the coaxial connector can be inserted from the outside of the chassis into the square hole provided in the chassis and attached, the coaxial connector can be attached to the corner portion of the chassis, and the chassis can be miniaturized. it can. If the deformable portion is a convex deformable portion having a flat portion at the top, the mounting strength of the coaxial connector can be significantly improved and the shield effect can be improved. Further, the edge of the chassis can be made substantially straight after the coaxial connector is attached.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the coaxial connector and the method of mounting the coaxial connector of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view of a chassis of an electric signal handling apparatus according to a first embodiment of the present invention. In this figure, 1 is a metal plate processed into a metal plate, and is a device for handling electric signals, for example, a chassis of a distributor, 2 is a mounting hole for a coaxial connector formed in the chassis 1 in a polygonal shape. The square holes 3 each having a substantially rectangular shape are elongated deformable portions formed along one side of the square hole 2. In this example, two square holes 2 are formed on the front plate 1a and three rear plates 1b of the chassis 1, and the upper side of the square hole 2 is brought closer to the upper end of the chassis 1 so that the chassis 1 An elongated deformable portion 3 is formed on the upper portion.

FIG. 2 is a view of the connector body of the coaxial connector according to the first embodiment of the present invention. (A) is a front view of the connector body, (b) is a sectional view taken along line AA of (a), (c). Is a right side view, and (d) is a sectional view taken along line BB of (c). In this figure, 8 is a cylindrical connector body made of a conductive metal that forms the outer shell of the coaxial connector, 9 is formed on the outer surface of the connector body 8, and a connecting nut of a coaxial plug (not shown) is screwed. Male screw portion, 11 is a front contact portion that is a substantially rectangular first contact portion, and 12 is a front contact portion 11
A front contact surface as a first contact surface that is in contact with the front surface of the chassis 1, and 14 is a second contact that has substantially the same shape as the square hole 2 and is slightly smaller than the square hole 2. The rear contact portion, 15 is a rear contact surface which is formed on the rear contact portion 14 and contacts the rear surface of the chassis 1 as a second contact surface. The rear contact surface 15 is formed on the lower end of the rear contact portion 14 and on the inclined portions of both upper shoulders. Reference numeral 16 is an engagement groove formed by the front contact surface 12 and the rear contact surface 15.

FIG. 3 is a process diagram for explaining a method of mounting the coaxial connector according to the first embodiment of the present invention, in which FIG.
Drawing in process, (b) is drawing in 2nd process, (c)
[Fig. 6] is a diagram in the third step. In this figure, the same reference numerals as those in FIGS. 1 and 2 indicate the same members, and the description thereof will be omitted.

FIG. 4 shows a chassis 1 of a device for handling electric signals.
FIG. 3 is a cross-sectional view showing a state in which the coaxial connector of the first embodiment is inserted into the above. In this figure, FIG. 1 and FIG.
The same reference numerals denote the same members, and a description thereof will be omitted, but 5 is a circuit board disposed inside the chassis 1, and 7 is a circuit board.
Is a coaxial connector, 18 is a center contact, 19 is an insulator that holds the center contact 18 at substantially the center of the connector body 8, and 20 is a lead portion that connects the center contact 18 and the circuit board 5.

The method of mounting the coaxial connector of the first embodiment will now be described with reference to FIGS. 3 and 4. To mount the coaxial connector 7 in the square hole 2 provided in the chassis 1, first, the connector Rear contact portion 1 of main body 8
When the front side contact surface 12 is brought into contact with the front surface of the chassis 1, the state shown in FIG. 3A is obtained. Next, when the coaxial connector 7 is slid or moved downward in parallel with the surface of the chassis 1 to engage the engagement groove 16 with the chassis 1, the state shown in FIGS. 3B and 4 is obtained. Then, the deformable portion 3 of the chassis 1 is hit from the upper side with a hammer or the like to be deformed to the central portion side of the square hole 2, and the state shown in FIG.

Then, the connector body 8 has a deformable portion 3
As a result, the upward displacement is prevented, so that the state in which the engagement groove 16 of the connector body 8 is engaged with the chassis 1 is maintained, and the connector body 8 is fixed to the chassis 1. The holding of the chassis 1 by the engagement groove 16 is performed by the front contact surface 12
The rear contact surface 15 and the rear contact surface 15 sandwich the chassis 1, and the sandwiched portions are the lower end portion of the rear contact portion 14 and both upper shoulder portions. If a plurality of coaxial connectors 7 are attached to the front plate 1a and the rear plate 1b as shown in FIG. It can be greatly shortened.

By the way, if the rear contact portion 14 is formed in a simple rectangular shape, the sandwiching portion is only the lower end of the rear contact portion 14, and the chassis 1 can be held only by the lower end portion of the rear contact portion 14. However, when the inclined portions as the sandwiching portions are formed on both upper shoulders of the rear contact portion 14 as in this embodiment, the rear contact portions 14 positioned on both sides with respect to the central axis of the coaxial connector 7 are formed. The chassis 1 can be clamped by the rear contact surface 15 and the front contact surface 12 formed on the lower end portion and the upper shoulders. As a result, the chassis 1 can be firmly held at the upper shoulders and the lower portion of the rear contact portion 14, and the coaxial connector is prevented from coming out of the chassis 1.

Since the connector body 8 is fixed not by the round hole but by the square hole 2, even if a rotational torque is applied when the coaxial plug is connected, it does not rotate and no rattling occurs. Further, the washer 07 and the nut 09 as in the conventional example shown in FIG. 7 are unnecessary, and the number of parts is reduced. Further, since the deformable portion 3 of the chassis 1 is only deformed by a hammer or the like, the work can be performed easily in a short time and the working process is reduced.

Further, the work of deforming the deformable portion 3 of the chassis 1 can be carried out at each place, but if a caulking jig is used, it is possible to deform many deformable portions 3 at a time. Is possible. For example, in FIG. 1, it is possible to simultaneously deform two deformable portions 3 formed on the front plate 1a and three deformable portions 3 formed on the rear plate 1b. Further, when the square holes 2 are also formed in the left and right side plates of the chassis 1, the deformable portion 3 formed on the side plates of the chassis 1 can be deformed at the same time. Then, as shown in FIG. 4, the circuit board 5 is mounted in the chassis 1. The circuit board 5 is provided with a slit through which the lead portion 20 of the coaxial connector 7 can pass. After being fixed to the chassis 1 by means not shown, the lead portion 20 is soldered to the slit portion of the circuit board 5.

Next, a method of mounting the coaxial connector different from the first embodiment of the present invention (hereinafter referred to as the second embodiment).
This will be described with reference to FIG. In the description of the second embodiment, the same reference numerals are used for the same components as those in FIGS. 1 to 4, and the description thereof will be omitted. Reference numeral 25 is a substantially rectangular opening formed on the side of the square hole 2. In the second embodiment, the direction of the square hole 2 provided is different from that of the first embodiment, and the deformable portion 3 is formed along one side of the square hole 2 by bringing the opening 25 and the square hole 2 close to each other. Has been formed.

In the second embodiment, in order to mount the coaxial connector 7 in the square hole 2 of the chassis 1, first of all, in the same manner as in the first embodiment, first, the rear contact portion 14 side of the connector body 8 is arranged. From the above, the front contact surface 12 is brought into contact with the front surface of the chassis 1 so that the chassis 1 is brought into the state shown in FIG. Next, the coaxial connector 7 is slid sideways in parallel with the surface of the chassis 1 to engage the engagement groove 16 with the chassis 1, and the state shown in FIG. 5B is obtained. Then, a jig having a flat-plate tip such as a flat-blade screwdriver is inserted into the opening 25, and the jig is rotated to deform the deformable portion 3 toward the central portion side of the square hole 2 and then, as shown in FIG. The state shown in (c) is obtained. Then, the connector body 8 is prevented from being displaced to the original position by the deformable portion 3, and the connector body 8 is fixed to the chassis 1. The operational effect of the second embodiment is the same as the operational effect of the first embodiment described above, but it can be attached with a flat-blade screwdriver or the like.

Next, a coaxial connector different from that of the first embodiment and a method of mounting the same (hereinafter referred to as a third embodiment) will be described with reference to FIG. In the description of the third embodiment, the same reference numerals are used for the same components as those in FIGS. 1 to 4, and the description thereof will be omitted. In the third embodiment, the shape of the square hole 2 is different from that of the first embodiment, and has a shape in which a large rectangle and a horizontally elongated rectangle arranged below the rectangle are integrated. The square hole 2 of the first embodiment has a shape in which a rectangular shape is arranged in the center, a slender rectangular shape is arranged in the lower part, and a substantially trapezoidal shape in which the lower side is smaller than the upper side in the upper part.

Further, in the third embodiment, the front abutment surface 12 is formed substantially perpendicular to the central axis of the connector body 8 like the front abutment surface 12 of the first embodiment. However, in the case of the first embodiment, the rear contact surface 15 is substantially perpendicular to the central axis of the connector body 8, but in the case of the third embodiment, it is inclined at an inclination angle α with respect to the vertical line. There is. As a result, the engaging groove 16 of the third embodiment has a wedge-shaped cross section, and the width becomes narrower toward the groove bottom. And
The width d of the groove bottom of the engaging groove 16 is smaller than the thickness of the chassis 1 by about 5 to 15%. Therefore, when the coaxial connector 7 is slid downward, the chassis 1
Is press-fitted and fixed in the engaging groove 16, and the coaxial connector 7 can be firmly fixed to the chassis 1 without play.

Further, in the case of the third embodiment, the engaging groove 16
Is formed not only on the lower end of the connector body 8 but also on the upper end, and when the deformable portion 3 is deformed toward the center of the square hole 2, the upper engaging groove formed on the upper end of the connector body 8 The deformable portion 3 that has been transformed into 16 is engaged and locks the connector body 8. Therefore, the connector body 8
The connector body 8 can be fixed more firmly than in the case where the engagement groove 16 is formed only in the lower end portion of the. In addition,
As in the first and second embodiments, the engagement grooves 16 are provided in both upper shoulders of the connector body 8, and the coaxial connector is provided by the engagement grooves 16 provided in the lower end and both upper shoulders. May be attached.

Next, a modification of the first embodiment is shown in FIG. In the description of this modification, the same components as those in FIGS. 1 to 4 are designated by the same reference numerals, and the description thereof will be omitted. In this modification, the deformable portion 3 has a different shape after being deformed. That is, FIG. 7 (a)
From the outside of the chassis 1 to the connector body 8
Is inserted into the square hole 2 formed in the chassis 1, and the deformable portion 3 is pressed by a press (not shown) having a flat portion.
As shown in FIG. 2B, the deformable portion 3 is deformed toward the square hole 2.

As a result, the deformable portion 3 is deformed so as to have the flat portion W as shown in FIGS. Therefore, the deformable part 3 is formed on the connector body 8.
The area of contact with each other is increased, and the attachment strength of the connector body 8 can be improved. As shown in FIGS. 1A and 1C, the chassis 1 is provided with a plurality of board receiving ribs 4 for supporting the circuit boards housed in the chassis 1. In this case, since the connector body 8 is mounted by inserting the connector body 8 from the outside of the chassis 1 into the square hole 2 formed in the chassis 1 as described above, the board receiving rib 4 is mounted at the time of mounting. Not to be a hindrance, the distance d between the center of the connector body 8 and the chassis 1 can be shortened, and the connector body 8 can be attached to the corner portion of the chassis 1. Thereby, the chassis 1 can be downsized.

Although the square holes 2 can be provided at the corners of the chassis 1 in this manner, the chassis 1 is provided with folded portions at the corners as shown in the figure so as to increase the strength of the corners. Further, the distance d between the center of the connector body 8 and the chassis 1 can be shortened not only in this modification but also in the above-mentioned first to third embodiments, and the chassis 1 can be downsized. It can be transformed into.

By the way, in the method of attaching the coaxial connector shown in FIG. 7, since the deformable portion 3 is deformed so that a flat portion is formed, the deformable portion 3 is slightly deformed due to a phenomenon called springback after the deformation. It may return to the original state so as to be separated from the connector body 8. When such a phenomenon occurs, backlash will occur between the square hole 2 and the connector body 8.

Therefore, in the method of mounting the coaxial connector in which the flat portion is formed in the deformable portion 3, the above-mentioned method of mounting the coaxial connector (hereinafter referred to as the fourth embodiment) which does not cause backlash is described with reference to FIGS. It will be described with reference to FIG. In the fourth embodiment, the same components as those in FIGS. 1 to 4 are designated by the same reference numerals, and the description thereof will be omitted. This fourth
The embodiment is different in that the deformable portion is a convex deformable portion 30 as shown in FIG. 8A. The convex deformable portion 30 protrudes from the edge of the chassis 1 corresponding to the upper edge of the square hole 2, its top is flat, and its corner is chamfered to form an inclined portion. There is.

Then, as shown in FIG. 2B, after inserting the connector body 8 into the square hole 2, the connector body 8 is slid downward in parallel with the surface of the chassis 1 so that the engaging groove is formed in the chassis 1. Engage with. Next, as shown in FIG. 3C, the press die 40 is brought into contact with the upper end of the convex deformable portion 30 so that the convex deformable portion 30 is compressed and deformed toward the square hole 2. As shown in FIG. 9, the press die 40 is pressed and compressed until its lower end abuts against the edge of the chassis 1, so that the convex deformable portion 30 is plastically deformed and its lower end is the connector. The upper end of the main body 8 is strongly crimped. Moreover, since the pressure contact portion is widened, the mounting strength of the connector body 8 can be significantly improved to about four times that of the first embodiment.

According to such a method of attaching the coaxial connector, after the connector body 8 is attached to the chassis 1 as shown in FIG. 9, the caulked portions of the chassis 1 become substantially the same and the chassis 1 is almost covered with the lid. Since there is no gap, it is possible to improve the shielding effect of unnecessary radiation and high frequency shield. The shape of the convex deformable portion 30 may be a shape with rounded corners as shown in FIG. 10, instead of the shape shown in FIG.

The width A2 of the flat portion provided on the top of the convex deformable portion 30 is at least the width A of the upper end of the square hole 2.
The width is narrower than 1. This is because if the width A2 is made wider than the width A1, there arises a problem that the portions of the chassis 1 to be crimped are not the same when crimping. Also,
The reason why the corner portion of the convex deformable portion 30 is the inclined portion is to prevent the convex deformable portion 30 from being sheared during crimping. Further, the height δ1 of the convex deformable portion 30 is
By sliding at least the connector main body 8, the height of the gap width δ2 formed between the connector main body 8 and the upper end of the square hole 2 is made equal to or larger than the height, and the convex deformable portion 30 is formed.
A gap is not formed after the deformation of the so as to prevent backlash.

According to the fourth embodiment, in addition to the effects and advantages of the first to third embodiments, the convex deformable portion 30 is deformed so as to match the edge of the chassis 1. Therefore, the setting of the stroke of the press for crimping can be easily determined. In addition, the design and manufacture of the crimping jig are facilitated. Furthermore, after the coaxial connector is attached, the edge of the chassis 1 is formed into a substantially straight line shape, so that a good-looking appearance can be obtained.

In the above description, two square holes 2 are formed on the front plate 1a of the chassis 1 and three square holes 2 are formed on the rear plate 1b, but the number can be changed as appropriate. It is also possible to form the square holes 2 in the left and right side plates of the chassis 1. The coaxial connector 7 is inserted into the square hole 2 from the outside of the chassis 1, but is inserted from the inside of the chassis 1 into the square hole 2.
It is also possible to insert into. In this case, the front contact portion 11 has a shape smaller than the square hole 2, and the rear contact portion 14
Needs to be larger than the square hole 2.

Further, the shape of the square hole 2 can be appropriately modified such as a triangle, another polygon, or an ellipse. And
The coaxial connector 7 has been described by taking the example of being attached to the distributor, but the present invention is not limited to this, and can be attached to the chassis of other devices. In the first embodiment, the second embodiment, and the fourth embodiment, the engagement groove 16 is the same as in the third embodiment.
When the deformable portion 3 or the convex deformable portion 30 is deformed toward the center of the square hole 2, the deformable portion 3 is transformed into the engaging groove 16 provided at the upper end. Alternatively, the convex deformable portion 30 may be engaged to lock the connector body 8.

In addition, in the method of attaching the coaxial connector of the present invention, as shown in FIG.
Center contact 18 and insulator 1 mounted within
Since 9 can be mounted in the connector body 8 after the connector body 8 is mounted, after mounting the connector body 8 on the chassis 1, apply cream solder to the connector body 8 and solder it in a reflow furnace. Is also good.

[0042]

As described above, according to the present invention, the coaxial connector is inserted into the mounting hole of the chassis and is slid, and the deformable portion of the chassis is deformed, so that the coaxial connector is coaxial with the mounting hole of the chassis. A connector can be attached. Therefore, other parts such as washers and nuts other than the chassis and the coaxial connector are unnecessary, and the number of parts can be reduced. Further, since there is no work of rotating the nut, the work is simplified and the number of work steps can be reduced.

Further, if the mounting hole for mounting the coaxial connector is a substantially square hole, it becomes stronger against the rotational torque and rattling does not occur in the coaxial connector when the coaxial plug is connected. If the engagement groove is formed narrower toward the bottom of the groove, the chassis can be press-fitted into the engagement groove and the mounting play can be eliminated. Then, by deforming the deformable part of the chassis toward the center of the mounting hole, the coaxial connector is fixed in the mounting hole of the chassis. It can be fixed on.

Further, after mounting the coaxial connectors in the plurality of mounting holes formed in the chassis and sliding the same,
If the deformable portions are simultaneously deformed by the caulking jig, a plurality of coaxial connectors can be attached at the same time. Therefore, it is possible to reduce the number of working steps, significantly shorten the working time as compared with the related art, and attach a large number of coaxial connectors to the chassis.

Furthermore, since the coaxial connector can be inserted from the outside of the chassis into the square hole provided in the chassis and attached, the coaxial connector can be attached to the corner portion of the chassis, and the chassis can be miniaturized. it can. Further, when the deformable portion is a convex deformable portion having a flat portion at the top, the mounting strength of the coaxial connector can be significantly improved, and after mounting the coaxial connector, the edge of the chassis is made substantially straight. This can improve the shield effect. Further, the edge of the chassis can be made straight after the coaxial connector is attached.

[Brief description of drawings]

FIG. 1 is a perspective view of a chassis of an electric signal handling device according to a first embodiment of the present invention.

FIG. 2 is a front view, a sectional view, a right side view, and a BB sectional view of a connector body of a coaxial connector according to a first embodiment of the present invention.

3A and 3B are process drawings for explaining a method of mounting the coaxial connector according to the first embodiment of the present invention, in which FIG. 3A is a drawing in a first step, FIG. 3B is a drawing in a second step, and FIG. It is a figure in a 3rd process.

FIG. 4 is a diagram showing a first embodiment of the present invention in a chassis of a device that handles electrical signals.
It is sectional drawing in the state which inserted the coaxial connector of an Example.

5A and 5B are process drawings for explaining a method of mounting a coaxial connector according to a second embodiment of the present invention, where FIG. 5A is a view in a first process, FIG. 5B is a view in a second process, and FIG. It is a figure in a 3rd process.

6A and 6B are views for explaining a coaxial connector and a mounting method thereof according to a third embodiment of the present invention, where FIG. 6A is a rear view of the chassis and the connector body, FIG. 6B is a rear view of the connector body, and FIG. ) Is a side view of the connector body.

FIG. 7 is a diagram in which a coaxial connector is attached to a chassis according to a modified example of the first embodiment of the present invention, (a) is a top view,
(B) is a front view, (c) is a side view, and (d) is a partially enlarged view.

8A and 8B are views for explaining a method of mounting a coaxial connector according to a fourth embodiment of the present invention, where FIG. 8A is a front view of a chassis of a device, FIG. 8B is a view in a first step, and FIG. It is a figure in the 2nd process.

FIG. 9 is a diagram showing a crimping step in the fourth embodiment of the present invention.

FIG. 10 is a diagram showing a modification of the convex deformable portion in the fourth embodiment of the present invention.

FIG. 11 is an enlarged view of a part of FIG.

FIG. 12 is an exploded perspective view of a conventional coaxial connector mounting structure.

FIG. 13 is a view showing a state in which the coaxial connector is attached to the chassis by the conventional method for attaching the coaxial connector.

[Explanation of symbols]

 1 chassis 2 square hole (mounting hole) 3 deformable part 4 board receiving rib 8 connector body 11 front contact part (first contact part) 12 front contact surface (contact surface) 14 rear contact part (first (Two contact portions) 16 engaging groove 18 center contact 19 insulator 30 convex deformable portion 40 press die

Front Page Continuation (72) Inventor Yasumasa Suzuki 4-7 Kitamachi, Warabi-shi, Saitama, Japan Atena Co., Ltd. Warabi factory

Claims (11)

[Claims] 1. A cylindrical connector body, a center contact for inputting an electric signal, and an insulator for arranging the center contact on a substantially center line of the connector body, and provided on a chassis of a device. In the coaxial connector mounted in the mounting hole, a first contact portion that is in contact with one surface of the chassis and does not pass through the mounting hole, and the chassis of the chassis when sliding through the mounting hole. A second contact portion that is in contact with the other surface and that is formed on the end side of the first contact portion, and is formed between the first contact portion and the second contact portion, and the chassis A coaxial connector, wherein the connector body is provided with an engagement groove for sandwiching the chassis plate forming the. 2. The coaxial connector according to claim 1, wherein the mounting hole is a substantially square hole. 3. The engagement groove for sandwiching the chassis plate is formed in a lower end portion of the second contact portion and inclined portions of both upper shoulders. Coaxial connector. 4. The coaxial connector according to claim 1, wherein the engagement groove is narrowed toward the bottom of the groove. 5. A coaxial connector having a tubular connector body, a center contact to which an electric signal is input, and an insulator for arranging the center contact on a substantially center line of the connector body is mounted on a chassis of a device. In the method of mounting a coaxial connector mounted in a mounting hole provided, the mounting hole provided in the chassis is a substantially square hole, and a deformable portion is formed in the chassis along one side of the mounting hole. The connector main body is in contact with one surface of the chassis and is larger than the mounting hole, and a first contact portion that is capable of contacting the other surface of the chassis and is slightly smaller than the mounting hole. A second contact portion formed on the end side of the contact portion, and an engagement groove formed between the first contact portion and the second contact portion. Said coaxial The first step of inserting the connector from the side where the second contact portion is arranged and bringing the contact surface of the first contact portion into contact with one surface of the chassis; and thereafter, placing the coaxial connector into contact with the first contact portion. A second step in which the engaging groove is engaged with the chassis by moving the second contact portion against the other surface of the chassis by moving in parallel to the contact surface, and after the second step. A third step of deforming the deformable portion toward the central portion of the hole of the chassis, the method of attaching the coaxial connector. 6. In the second step, the engagement grooves formed in the lower end portion of the second contact portion and the inclined portions of both upper shoulders hold the chassis plate forming the chassis. The method for mounting a coaxial connector according to claim 5, wherein: 7. The method of mounting a coaxial connector according to claim 5, wherein the engagement groove is narrowed toward the bottom of the groove. 8. The square hole is provided in the chassis so that the deformable portion faces each other, and an opening for deforming the deformable portion is formed near the deformable portion. The coaxial connector mounting method according to any one of claims 5 to 7, characterized in that. 9. The deformable portion is a convex deformable portion that projects from the edge of the chassis and has a flat top portion that protrudes. The convex deformable portion is formed by the third step. 8. The method for mounting a coaxial connector according to claim 5, wherein the top portion of the shaft is deformed toward the hole of the chassis. 10. The method for mounting a coaxial connector according to claim 9, wherein, when the third step is performed, the top of the convex deformable portion and the edge of the chassis are substantially aligned with each other. . 11. The plurality of square holes are formed on one side surface of the chassis, and when the plurality of coaxial connectors are attached to the one side surface of the chassis, the plurality of convex deformable portions are simultaneously crimped. The method for mounting a coaxial connector according to claim 9 or 10, characterized in that.