JP3309561B2 - Electronic and communication equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic / communication device having an improved coaxial line connection of a printed wiring board unit plug-in mounted on a shelf for housing a printed wiring board unit.

In the field of various electronic devices or communication devices (hereinafter simply referred to as electronic / communication devices), a large number of printed wiring board units are mounted on a printed wiring board housing called a printed wiring board housing shelf. Are inserted in parallel, and the connector on the tip and the connector on the shelf backboard are connected at the same time as the insertion is completed, that is, so-called plug-in connection.

A power supply circuit, a ground circuit, a control circuit, and various signal circuits are connected to the connector thus connected in a predetermined relationship. In particular, a connection line of a high-frequency signal circuit is connected by a coaxial connector using a coaxial line.

In the present invention, an example of a wireless communication device will be described as a representative.

[0005]

2. Description of the Related Art FIG. 13 shows a side view of a conventional printed wiring board unit. The printed wiring board unit 1 is provided with reinforcing metal fittings 3 and 3 for preventing warpage and bending along the longitudinal direction, which are fixed above and below the surface of the rectangular printed wiring board 2.

A display component and an operation component 4 are mounted on the right side of the figure on the front side, and connectors 5 and 6 for plug-in connection are mounted on the left side of the figure on the rear side. A large number of circuit components (not shown) are mounted and mounted on the surface of the printed wiring board 2 and are connected to a pattern of the printed wiring board to configure a predetermined circuit function.

The upper connector 5 includes a plurality of coaxial connectors 7 serving as signal lines and the like, and is connected to a signal circuit on the surface of the printed wiring board. Lead terminals 8 of a power supply circuit, a ground circuit, various control circuits, and the like are connected to a circuit pattern of the printed wiring board 2 on the lower connector 6.

FIG. 14 is a front view of a conventional printed circuit board unit accommodating shelf, with a front cover removed.
FIG. 15 shows a side sectional view as a schematic diagram.

[0009] Shelf 11 containing printed wiring board unit
In the figure, left and right side wall plates 12 and 12 having an attachment portion to a standing frame (not shown) and upper and lower side wall plates 13 and 13 are assembled to face each other and formed in a box-shaped frame shape. 14, a bottom plate 15 and a back plate 17 are provided.

Grooves 18 for inserting and guiding a large number of printed wiring board units 1 are formed symmetrically at predetermined intervals on the front side of the upper and lower side wall boards 13, 13. Backboard connectors 21 and 22 corresponding to the connectors 5 and 6 of the printed wiring board unit 1 are mounted on the board 19.

The upper and lower side walls 13, 13 are formed with drawing portions 23, each having an oval shape in plan view, for forming grooves on the opposing surfaces to serve as insertion guides for the printed wiring board unit 1, where necessary. The space between the drawn portions 23 is a guide groove in front view.

In FIG. 15, reference numeral 24 denotes a front cover,
The screw 5 is attached to the shelf 11 and covers the front. The bush 26 attached to the rear plate 17 is for passing a wiring wire between the outside.

As shown in FIG. 15, the upper backboard connector 21 is provided with a coaxial connector 27 and the like. Also, the upper side wall plate 13 and the ceiling plate 14
Are provided with two signal branching units 29, 29, and one signal synthesizing unit 3 is provided on the back plate 17 side.
1 is provided.

On the front side of the signal branching unit 29, for example, three coaxial connectors 32 are provided respectively, and on the rear side, for example, 24 coaxial connectors 33 are provided respectively in the left-right direction.

On the upper side of the signal synthesizing unit 31, similarly,
Coaxial connectors 34 are provided.
The coaxial connectors 35 are provided in the left-right direction. A coaxial cable 37 having coaxial connectors 36 and 36 at both ends respectively connects the two coaxial connectors 27 on the upper side of the backboard connector 21 and the coaxial connector 33 of the signal branching unit 29 to each other.
7 and the coaxial connector 35 of the signal combining unit 31 are connected.

The back side of the lower backboard connector 22 is connected to an electric cable (not shown) and connected to a predetermined portion inside or outside the apparatus. The connectors 5 and 6 of the printed wiring board unit 1 are connected to the back board connector 21 by inserting the printed wiring board units 1 into the guide grooves 18 of the printed circuit board unit housing shelf 11 in the above-described manner and inserting the printed wiring board units 1 into the respective slots. , 22 are plugged in.

The two coaxial connectors 7, 7 on the upper side of the printed wiring board unit 1 are connected to the two coaxial connectors 27, 27 on the upper side of the backboard connector 21, so that the printed wiring board unit 1 is not shown. The receiving circuit and the signal circuit of the signal branching unit 29 are connected.

By connecting the coaxial connector 7 on the lower side of the printed wiring board unit 1 and the coaxial connector 27 on the lower side of the backboard connector 21, the transmission circuit and the signal synthesizing unit (not shown) of the printed wiring board unit 1 are similarly formed. 31 signal circuits are connected.

As described above, eight units of the printed wiring board unit 1 are divided into the respective signal branching units 29.
Is connected to one of the coaxial connectors 32 of the signal synthesizing unit 31 and one of the coaxial connectors 34 of the signal synthesizing unit 31.
2 is branched and input to eight receiving circuits of the printed wiring board unit 1.

The transmission signals output from the transmission circuits of the eight printed wiring board units 1 are synthesized by the signal synthesizing unit 31 and output to one portion of the coaxial connector 34. Therefore, the signal branching unit 29 and the signal synthesizing unit 31 are connected to 24 units of the printed wiring board unit 1.

The coaxial connector 32 for signal input of the signal branching unit 29 and the coaxial connector 34 for signal output of the signal synthesizing unit 31 are both connected to an antenna device via a coaxial cable (not shown).

[0022]

According to the connection configuration of the coaxial circuit of the conventional printed wiring board unit, the coaxial connector 27 provided in the backboard connector 21 and the coaxial connectors 36 on both sides of the coaxial cable 37 are connected. , The coaxial connector 3 of each signal combining unit 29
3 and between the signal synthesizing unit 31 and the coaxial connector 35.

According to the connection of the coaxial connector via the coaxial cable 37, the loss of the high-frequency signal increases due to the discontinuity of the signal line characteristics and the increase in the line length depending on the connection point, and the electrical characteristics are increased. And the reliability of the quality of the transmitted signal is impaired.

The space for the coaxial connector and the coaxial cable and the space for the attaching / detaching operation are also required, so that the size of the apparatus is increased, and it is inevitable that the cost is increased as a whole.

There have been various problems. An object of the present invention is to provide a new electronic / communication device in which such problems are solved in view of the above conventional problems.

[0026]

Means for Solving the Problems The gist of the means of the present invention for solving the above problems is that a coaxial connector to be plugged in is connected to a rear side connector housing.
A printed wiring board unit provided in a protruding state within the recess, a backboard having a coaxial connector connection hole, and
A printed circuit board unit housing shelve having a connector housing mounted on the backboard on the back side, and a backboard mounted on the back side of the printed circuit board unit housing shelve and a backboard mounted on the backboard;
A high-frequency unit having a coaxial connector which is embedded in the connector housing from the coaxial connector connection hole of the nectar housing toward the front and provided with a coaxial connector which can be seen through the coaxial connector of the printed wiring board unit and the high-frequency unit. Connector and printed wiring board unit
Backboard connector in recess of connector housing
The coaxial connector
This is a configuration of an electronic / communication device that is connected by a cattle plug-in. Preferably, the coaxial connector connection hole is a backboat.
2 is a configuration of a through hole of a connector housing attached to a board and a backboard.

[0027]

According to the constitution of the present invention, the coaxial connector integrated with the high-frequency unit is placed in the coaxial connector connection hole of the backboard and is on standby. Since the coaxial connector of the printed wiring board unit is directly connected to the coaxial connector of the high frequency unit by plug-in, the circuit connection of the high frequency signal can be performed by the shortest distance without requiring a conventional coaxial cable for connection.

By forming the coaxial connector connection hole of the backboard as a through-hole of the connector housing attached to the backboard, positioning and guiding of the coaxial connector are ensured, and connection can be made with high reliability.

[0029]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an electronic / communication apparatus according to the present invention.

FIG. 1 is a side sectional view showing an electronic / communication apparatus 41 according to an embodiment of the present invention, in which a printed wiring board unit 43 is housed in a printed wiring board unit housing shelf 42. FIG.

Plug-in connectors 44 and 45 are attached to the rear side of the printed wiring board unit 43 on the right side in the figure. A large number of circuit components (not shown) are mounted and mounted on the surface of the printed wiring board unit 43, and are connected to a pattern of the printed wiring board to form a predetermined circuit function.

The upper connector 44 includes a plurality of coaxial connectors 46 serving as signal lines, a power contact 47 and a ground contact 48.
Further, it is configured by other control signal line contacts 49 and the like, and is connected to a signal circuit, a power supply circuit, and the like on the printed wiring board surface.

To the lower connector 45, lead terminals 51 of contacts such as various control circuits are connected to a circuit pattern of a printed wiring board. The printed wiring board unit housing shelf 42 has left and right side walls (not shown) and upper and lower side walls 52, 52 which are assembled to face each other and formed in a box-shaped frame shape.

Grooves for inserting and guiding a large number of printed wiring board units 43 are formed symmetrically at predetermined intervals on the front side of the upper and lower side wall boards 52, 52, and a back board made of a printed wiring board on the back side is formed. Backboard connectors 54 and 55 corresponding to the connectors 44 and 45 of the printed wiring board unit 43 are attached and mounted on 53.

On the upper and lower side wall plates 52, 52, drawing portions 56 having an oval shape in plan view for forming grooves serving as insertion guides of the printed wiring board unit 43 are formed on the opposing surfaces so as to protrude at required places. The space between the drawing portions 56 is a guide groove in front view.

The backboard 53 and the upper backboard connector 54 are formed with a plurality of coaxial connector 46 connecting holes 57 and 58, which are signal lines. The upper backboard connector 54 is shown in FIG. And a power supply terminal 59, a ground terminal 61, and other control signal line contacts 62. The power supply circuit, the control signal circuit, the ground circuit, and the like on the backboard 53 are provided. Connected to the pattern.

The lower backboard connector 55 is provided with contact lead terminals 63 for various control circuits and the like, and these are connected to the circuit pattern of the backboard 53.

Reference numeral 65 denotes a front cover, and screws 66
And is attached to the printed circuit board unit housing shelf 42, and covers the front surface. On the back side of the printed wiring board unit housing shelf 42, a high frequency unit 68 is detachably mounted with screws 69.

On the front side of the high-frequency unit 68, there is provided a coaxial connector 71 for signal line connection oriented in the front direction. The coaxial connector 71 is viewed through the coaxial connector connection hole 57 of the back board 53. Connector 54
Inside, it is connected to the coaxial connector 46 of the printed wiring board unit 43.

The relationship between the printed wiring board unit 43 and the upper and lower connectors 44 and 45 will be described with reference to the side sectional view (a) of FIG. FIG. 7B is a rear view as viewed from the rear side. In addition, FIG.
The upper connector 44 is shown in a partial sectional view. For this reason, the printed wiring board is shown by a two-dot chain line in FIG.

The connectors 44 and 45 are connected and fixed to the printed wiring board unit 43 by rivets 72 in a tightened state. As apparent from FIG. 2, the coaxial connector 46, the power contacts 47, ground contacts 48, is a control signal line for contacts 49, provided in the projecting state in the recess 74 of the connector 4 4 of the connector housing 73 Attached.

On the other hand, the relationship between the back board 53 and the upper and lower back board connectors 54 and 55 will be described with reference to the front view (a) and the sectional side view (b) of FIG. Note that FIG. 8B is a partial cross-sectional view of the upper backboard connector 54 for easy understanding.

The backboard connectors 54 and 55 are fixedly connected to the backboard 53 by rivets 72 in a tightened state. In particular, the position of the upper backboard connector 54 is accurately positioned and attached.

As is clear from FIG. 4B, the coaxial connector connection hole 57 of the backboard 53 is formed at a position where the coaxial connector 71 can be seen exactly, and the backboard connector 54 has the same hole 58 as the connector. These are through holes formed in the housing 75.

The power terminal 59, the ground terminal 61, the control signal line contact 62, and the like are mounted in the connector housing 75 in a buried state. The coaxial connector 7 provided in the high frequency unit 68 is shown in the partial side view of FIG.
1 is shown. When the high-frequency unit 68 is attached to the rear side of the printed circuit board unit housing shelf 42, the coaxial connector 71 is accurately fitted into the coaxial connector connection holes 57 and 58, so that the coaxial connector 71 is positioned so as to be in a peeping relationship. Is set.

[0046] The front view of the main part of the Do not back board 53 will Yo of the above is shown in diagram of FIG. 4 (a). The figure shows only the left and right end portions with the intermediate portion omitted. Figure (b) is a side view. Reference numeral 76 in the figure is a hole for a screw for mounting to the printed circuit board unit housing shelf 42.

The mounting of the backboard connector 54 as described above is achieved by assembling the guide pins (not shown) which are accurately positioned and projected in the X and Y directions, in which all the coaxial connector connection holes 58 are accurately fitted. The position of the connector housing 75 is set using a jig, and in this state, the connector housing 75 is attached to the backboard 53 with the rivets 72 in a tightly fixed state.

Here, the configuration of the coaxial connector 71 on the high frequency unit 68 side will be described with reference to the side half sectional view (a) of FIG. 5 and the rear view of FIG. The center conductor 77 extends in both end directions to extend the pin plug 78 and the pin terminal 7.
9 and has a flange portion 81 at a central portion.

On both sides of the flange portion 81 of the center conductor 77, dielectric sleeves 82 and 83 made of synthetic resin are inserted, and these are fitted inside the outer conductor 84 outside thereof. An outer conductor sleeve 85 having a spring property in the radial direction is provided around the pin plug 78 of the outer conductor 84, and a guide sleeve 86 is provided integrally outside the outer periphery thereof.

The end of the dielectric sleeve 83 is connected to the external conductor 84.
The end portion of the other dielectric sleeve 82 is configured to abut on the inner end of the outer conductor sleeve 85 to be press-fitted and fixed in position.

From the middle part of the outer conductor 84 to the right outer periphery 8 in the drawing.
Reference numeral 8 denotes a square cross section, and ground terminals 89 are formed at four corners of the periphery of the pin terminal 79. A screw 91 is formed around the left side in the figure, and a mounting board 92 of the high-frequency unit 68 is accurately fitted into the screw 91, and is fastened with a nut 94 via a washer 93 to be fixedly mounted.

The mutual relationship will be described with reference to FIG. 6 which shows an enlarged sectional view of the connector portion of the printed wiring board unit 43 and the high frequency unit 68. (A) shows the printed wiring board unit side, and (b) shows the high frequency unit side. Note that these connector portions are opposed to each other in a connectable state.

The state shown in FIG. 2A has already been described with reference to FIG.
As described with reference to, the printed wiring board unit 4
Coaxial connector 4 of connector 44 attached to
6. The ground contact 48 penetrates into the connector housing 73 and is locked to the stepped portion 96 of the connector housing 73 by the elastically restored state of the locking ring 95 having a C-shaped cross section. The part is mounted in a protruding state.

The coaxial connector 46 is a jack connector, and the ground contact 48 is a plug type. The state shown in FIG. 3B is likewise described with reference to FIG.
The ground terminal 61 of the backboard connector 54 attached to the backboard 53 penetrates into the inside of the connector housing 75 and is locked to the step 98 of the connector housing 75 by the elastic restoration state of the locking ring 97 having a C-shaped cross section. ,
The distal end is buried in the connector housing 75. This ground terminal 61 is a jack type.

Shelf 42 containing printed wiring board unit
The coaxial connector 71 of the high frequency unit 68 attached to the rear side of the connector has the configuration as described in detail with reference to FIG. It is inserted into 57 and 58 and is peeped toward the front. Therefore, the distal end of the coaxial connector 71 is buried in the connector housing 75.

The tip of the back board connector 54 on the back board 53 side is set to have such a size that it can fit into the recess 74 of the connector 44 on the printed wiring board unit 43 side.

Shelf 42 containing printed wiring board unit
A description will be given with reference to FIG. This figure is also a partially enlarged view of FIG. Connector 4 in both figures
In order to facilitate understanding of the connection states of the backboard connectors 54 and 55 and the backboard connectors 54 and 55, a part of the printed wiring board 43 is broken and the connector housing 73 and the connector 4 on the printed wiring board unit 43 side.
The side wall of No. 5 is also shown in a broken state.

Accordingly, the detailed configuration of each part is indicated by the same reference numeral and the description is omitted.
And 54 and 45 and 55 are well illustrated. Here, FIG. 5 and FIG. 6 are also referred to.

That is, the tip of the backboard connector 54 on the backboard 53 is fitted into the recess 74 of the connector 44 on the printed wiring board unit 43, the coaxial connectors 46 and 71 are connected, and the power contact The connection between the power supply terminal 47 and the power supply terminal 59 and the connection between the grounding contact 48 and the grounding terminal 61 are ensured by fitting of the plug and the jack, respectively.

The coaxial connectors 46 and 71 are connected between the guide sleeve 86 of the coaxial connector 71 on the backboard side and the external conductor sleeve 85 by the external conductor of the coaxial connector 46 on the printed wiring board unit side. The connection between them is performed, and the pin plug 78 of the center conductor of the coaxial connector 71 on the backboard side is inserted into the jack portion of the center conductor of the coaxial connector 46 on the printed wiring board unit side, so that the connection of the center conductors is performed.

FIG. 8 showing the high-frequency unit 68 as viewed from the rear side.
According to this, the state where the shield cover is removed is shown. FIG. 9 is a plan sectional view. Referring to both figures, the coaxial connectors 71 are vertically arranged in three rows, and eight are arranged in one row in the horizontal direction.

As described above, these coaxial connectors 71 are attached to the board 92 for attachment to the printed circuit board unit housing shelf 42.
A grounding substrate 101 is mounted on the back side of the mounting substrate 92, and a high-frequency circuit board 102 made of a printed wiring board is mounted on the back side with screws 103.

A predetermined signal branching or combining circuit pattern is formed on the high-frequency circuit board 102 by a conductor pattern (not shown). The pin terminal 79 and the ground terminal 89 of each coaxial connector 71 are connected to the predetermined circuit pattern. Connected to each other.

The coaxial connector for receiving input or the coaxial connector for transmitting output 104 is connected to each high-frequency circuit board 102.
Are connected to the coaxial connectors 71 of the respective circuit boards 102 so as to branch or combine signals.

The rear side of these high-frequency circuit boards 102 is configured so that the cover 106 is fixed with screws 107 via metal fittings 105 which are commonly mounted by circuit board mounting screws 103, and the whole is shielded. I have.

FIG. 10 is a side view of one embodiment of the high-frequency unit according to the second invention of the present invention, and corresponds to FIGS. 1 and 7. The printed wiring board unit housing shelf 42 side is the same as that of the previous embodiment, and the same parts are denoted by the same reference numerals. Therefore, the description thereof will be made with reference to the description of FIG. 1 and FIG. Here, the description is omitted.

In this embodiment, the high-frequency unit 111
The configuration of the coaxial connector 71 attached to the connector is the same as that shown in FIG. FIG. 1 when the high-frequency unit 111 is viewed from the back side
1 shows a state where the shield cover is removed. FIG. 12 is a plan sectional view. Referring to both figures, the coaxial connectors 71 are vertically arranged in three rows.
Eight are arranged in the horizontal direction per row.

These coaxial connectors 71 are similarly attached to a board 92 for attachment to the printed circuit board unit accommodating shelf 42, but are partially notched on the back side of the board 92 for attachment. A rectangular grounding substrate 112 is attached, and the grounding substrate 112 is
A high-frequency circuit board 113 made of a printed wiring board having the same shape is attached to the rear side of the board via screws 114.

A predetermined signal branching or synthesizing circuit pattern is formed on these high-frequency circuit boards 113 by conductor patterns (not shown), and the pin terminal 79 and the ground terminal 89 of each coaxial connector 71 are connected to these predetermined terminals. Each is connected to a circuit pattern.

The coaxial connector 115 for receiving input or the coaxial connector 115 for transmitting output is mounted on each circuit board 113 in a horizontal posture toward the cutout portion of the high-frequency circuit board 113.
3 is connected to the third coaxial connector 71 so as to branch or combine the signals.

A frame-shaped shield case 116 is attached around each of these high-frequency circuit boards 113. A cover 117 that covers the rear side is attached with screws 118, so that the whole is shielded and shielded. Have been. A hole 119 is provided on the side wall surface of the shield case 116 for connecting an external cable to the coaxial connector 115.

[0072]

As described in detail above, according to the electronic / communication apparatus of the present invention, the back board on the back side of the printed circuit board housing shelf and the back board are attached to the back board.
The connector housing has a coaxial connector connection hole, and the connector housing of the printed circuit board unit has a recess.
Backboard connector housing fits in place
By the coaxial connector of the RF unit which is attached to the back side of the printed wiring board accommodated Shierufu, the coaxial connector of the printed circuit board unit includes a backboard
Since it is configured to be directly and stably and accurately plugged in through the coaxial connector connection hole of the connector housing attached to the backboard , a conventional connector is provided. No connection cable and connector are required.

With this configuration, since there is no connection of the connector via the cable, the line length is greatly reduced, and the loss of the high-frequency electric signal is reduced by the reduction in the number of connection points of the connector. In addition, reliability such as electrical characteristics and quality of a transmitted signal is improved.

Since a space for arranging the coaxial connector and the coaxial cable and a space for the attaching / detaching operation are not required, the size and density of the apparatus can be reduced. Also, assembling or testing adjustment of the high frequency unit alone,
This is extremely convenient because maintenance and inspection can be performed.

According to the present invention, by accurately positioning and mounting the high-frequency unit, the connector housing of the backboard is not necessarily basically required, but is provided through the coaxial connector connection hole of the connector housing. If the connection is made, the insertion can be made easier by using the hole as a guide.

In the above-described embodiment of the present invention, signal branching and combining are described as an example of one-to-eight. However, the present invention is not limited to such an example, and can be applied to demultiplexing and multiplexing of multiplexed signals.
The present invention can be applied to other arbitrary ones. Of course, the electronic field other than the communication field may be used.

[Brief description of the drawings]

FIG. 1 is a side sectional view of one embodiment of the present invention.

FIG. 2 is a partial view of a connector portion of the printed wiring board unit;

FIG. 3 is a partial view of a connector portion of the backboard.

FIG. 4 is a front view and a side view of a backboard.

FIG. 5 is a coaxial connector of a high-frequency unit.

FIG. 6 is an enlarged view of a connector portion of a printed wiring board unit and a high-frequency unit.

FIG. 7 is a side sectional view of a partially enlarged view of FIG. 1;

FIG. 8 is a rear view of the high-frequency unit.

9 is a sectional view in plan view of FIG. 8;

FIG. 10 is a side view of a second embodiment of the high-frequency unit.

FIG. 11 is a rear view of the high-frequency unit in FIG. 10;

FIG. 12 is a plan sectional view of FIG. 11;

FIG. 13 is a side view of a conventional printed wiring board unit.

FIG. 14 is a front view of a conventional printed circuit board unit housing shelf.

FIG. 15 is a side sectional view of FIG. 14;

[Explanation of symbols]

 Reference Signs List 41 electronic / communication device 42 printed wiring board unit housing shelf 43 printed wiring board unit 44, 45 connector 46 coaxial connector 47 power supply contact 48 ground contact 49 control signal line contact 51 lead terminal 52 upper and lower side wall plate 53 backboard 54, 55 Backboard connector 57, 58 Coaxial connector connection hole 59 Power supply terminal 61 Ground terminal 62 Control signal wire contact 63 Lead terminal 68 High frequency unit 71 Coaxial connector 72 Rivet 73 Connector housing 74 Recess 75 Connector housing 77 Central conductor 78 pin plug 79 pin terminal 81 flange 82, 83 dielectric sleeve 84 outer conductor 85 outer conductor sleeve 86 guide sleeve 87 stopper 89 ground terminal 91 screw 92 mounting board 94 nut 95, 9 Locking ring 101 for grounding the substrate 102 high-frequency circuit board 104 coaxial connector 105 fitting 106 cover 111 radio-frequency unit 112 for grounding the substrate 113 high-frequency circuit board 115 coaxial connector 116 shield case 117 Cover 119 holes

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H05K 7/14

Claims (2)

(57) [Claims] And 1. A plug-in connection to the printed circuit board unit equipped in projecting state in the recess of the coaxial connector rear side of the connector housing is attached to the backboard and backboard having a coaxial connector holes
And a back board attached to the back of the printed circuit board unit housing shelves with the connector housing on the back side
And inside the connector housing from the coaxial connector connection hole of the connector housing on the backboard toward the front .
And a high-frequency unit having a coaxial connector that is buried in the board and that can be viewed. The coaxial connector of the printed wiring board unit and the coaxial connector of the high-frequency unit are printed wiring board units.
Backboard in the recess of the knit connector housing
The coaxial connector is
An electronic / communication device characterized by being connected by a plug-in between connectors. 2. The coaxial connector connection hole is a backboard.
2. The electronic / communication device according to claim 1, wherein the electronic / communication device is a through hole of a connector housing attached to the board and the backboard.