JPH06350274A - Communication unit - Google Patents

Abstract

PURPOSE:To provide a communication unit having a structure for enhancing the workability in the assembling work and the maintenance/inspection work. CONSTITUTION:The communication unit comprises guides 116 formed on the upper and lower faces from the front side toward the rear side, a power supply unit 115 inserted through the guides 116, a circuit board 110 fixed to the outside of at least one of the upper and lower faces, a connector 113 mounted on the front face of the circuit board, and a connector 126 fixed to the front face of the power supply unit, wherein the connector 126 of the power supply unit 115 is plugged into the connector 111 of the circuit board 110 when the power supply unit 115 is inserted through the guides 116.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication device which has good workability in assembly and maintenance work such as maintenance and inspection.

In order to communicate various information signals, various means such as signal transmission, reception, and relay are configured and implemented by transmission means such as radio including light and a cable. FIG. 9 shows an example of an external front view of the communication device according to the present invention.

In FIG. 9, a communication device 1 includes a receiving device 3 for 6 channels and a power receiving device 4 for power supply 3 on a rack 2 from above.
The unit is attached, and the transmission power amplification device 5 is below the unit.
It is configured so that 4 units make up 1 system, and 3 systems and 12 units in total are attached. A signal power distributor 6 and a signal power combiner 7 are attached to the rack 2 on the right and left sides of the transmission power amplifier 5, respectively.

As is common to all the drawings described below, the front side of the plane of FIG. 9 is the front side or the front side of the communication device, and the rear side of the plane is the back side or the rear side. The leftward direction will be described as leftward and the rightward direction will be described as rightward.

In the communication device 1, the transmission power amplifying device 5 is a four-unit-one system so that the transmission power distributor 6 supplies the small power of the signal power generated in the preceding stage (not shown).
4 branches in 1 system 4 transmission power amplifier 5
Each of them is connected by a coaxial cable and input to amplify the power, and the amplified transmission power is again connected to the transmission power combiner 7 by the coaxial cable and combined to be sent out as a large power to a transmission antenna or cable and transmitted. There is.

A state in which the transmission power amplifier 5 is inserted and attached to the rack 2 will be described with reference to a partially cutaway partial perspective view of FIG. The transmission power amplifying device 5 of FIG. 10 relates to a conventional technique described later, but a portion related to the present invention will be described. A pair of slide guides 11 are provided on the left and right sides of the rack 2 (only the right side is shown in the figure). It is attached extending in the direction.

Correspondingly, a pair of slide bars 12 are similarly attached to the left and right side surfaces of the transmission power amplifying device 5, and a rotary handle 13 is attached to the central portion of the side surfaces to prevent tilting at the upper portion on the back side. A block 14 for is attached. On the left and right sides of the front surface of the transmission power amplification device 5, grips 15 are attached, which are grips for supporting the transmission power amplification device 5 with respect to the rack 2.

The slide guide 1 for inserting into the rack 2
It is possible to mount the slide bar 12 on 1 and push the handle 15 in that state so that the slide bar 12 slides on each other to be inserted and mounted. On the other hand, when pulling out and taking out, the front handle 15 can be easily taken out by grasping and pulling out with the hand.

However, since the transmission power amplifying device 5 has a considerable weight, it cannot be taken out only by the front grip 15. Therefore, the handle 15 on the front side is once released in the state of being pulled out halfway, and is replaced by the handle 13 on the side face to take out the entire posture in a horizontal state.

As described above, when the handle 15 is changed to the handle 13, if the front side of the transmission power amplification device 5 is tilted downward due to its weight, it may fall down. For this reason, the block 14 for preventing tilting on the back side is brought into contact with and supported by the lower surface of the upper slide guide 11, and the tilting is stopped to an extremely small amount. Such an action is similarly performed at the time of insertion. That is, the handle 13 on the side face is held and inserted in a horizontal posture, and the handle 15 on the front face is held and pushed in for insertion.

As described above, as shown in the schematic cross-sectional view of the front side of FIG. 11, there is a gap between the block 14 for preventing the tilt of the lower transmission power amplifying device 5 and the slide guide 11 above it. Since the amount is set to a very small amount that does not hinder the insertion / removal, there is little inclination in the state of being pulled out halfway and no problem occurs.

[0012]

2. Description of the Related Art FIG. 12 is a perspective view showing the internal arrangement of the transmission power amplifying device 5 shown in FIG. 12 with most of the top cover 16 cut away. A control circuit board 18 and a transmission power amplifier circuit unit 19 accompanied by heat generation are mounted and mounted on the internal horizontal board 17 as a reference.

A power supply unit 21 is inserted and mounted below the board 17, and side plates 22 are fixed to the board 17 with screws on both side surfaces. Cooling fans 24 and 25 for cooling the heat generation of the transmission power amplification circuit unit 19 are attached to the front surface side and the rear surface side, respectively.
6 and the back cover 27 are attached.

A small window 28 is formed on the front side of the right side plate 22.
The fuses 29 attached to the power supply unit 21 can be seen from here. The fuse 29 has a function of displaying a blown state, and it can be confirmed through the window 28 whether the fuse 29 is normal or blown.

Next, referring to FIG. 13, a state in which the power supply unit 21 is taken out from the transmission power amplifier 5 is shown in a perspective view. The power supply unit 21 is inserted and mounted between the upper and lower boards 17 of the transmission power amplifier 5 from the right side. Front and rear end face plates 31 of the power supply unit 21,
32 projects in the vertical direction, and the projecting edge is the substrate 1
7 are vertically opposed to each other (only the lower side is shown in the figure), and are inserted into the guide grooves 33 formed in the left-right direction.

The power supply unit 21 is provided with a cooling fan on the back surface of the transmission power amplifying device 5 so that it can be cooled independently, and cooling air flows from the front to the rear in contact with the cooling fan. For this reason, the front end face plate 31 has an air intake port to which an air filter 34 is attached, and the rear end face plate 32 is provided with an exhaust port 35.

On the left side plate 36, a connector which is plug-in connected to the connector provided in the transmission power amplifier 5 is attached. The above-described fuse 29 is attached to the front side of the right side surface plate 37. Right side plate 3
At the front and rear ends of 7, there are attached lever-type insertion / extraction levers 38, 38 for inserting / pulling out a power source unit of a lever type, which are made of plastic molded products.

The power supply unit 21 is connected to the upper and lower substrates 17, 17
The front and rear end face plates 31 and 32 are fitted and inserted in the groove of the guide 33 between them, and the insertion / extraction levers 38 and 38 are operated for plug-in connection. In this way, the side plate 22 is attached to the substrates 17, 17
It is attached to the substrates 17 and 17 with a large number of screws 39 and assembled. Further, similarly to the front plate 26, the screw 4
Combine with 1. An air filter 34, which is an air intake port of the power supply unit 21, is located at a window portion of the front cover 26.

A more detailed description will be given with reference to FIG. 14, which is a perspective view showing a state in which the internal arrangement state of the main part of the transmission power amplifier 5 is separated. In FIG. 14, on the left side between the upper and lower substrates 17, the substrate 17 is used as a heat conducting plate, and a heat radiating plate block 43 composed of a large number of heat radiating plates is interposed between the substrates 17 along the air flow direction. An accommodation space for the power supply unit 21 is secured on the right side.

A transmission power amplifier circuit unit 19 accompanied by heat generation is mounted on the upper board 17 in contact therewith, and a control circuit board 18 is mounted by screwing between them.
On the lower surface of the lower substrate 17, circuit units 45 and 46 having similar heat generation are attached in contact with each other.

The back board 48, which is a printed wiring board for connecting the units to each other, has a heat sink block 43.
Is attached to the right end surface of the control board 18 and the circuit units 19 and 4 above the backboard 48.
A large number of connectors 49 connecting between 5, and 46 are attached, and a large number of connectors 51 are also attached to the mating substrate 18, etc., and a flat cable 52 connects between these connectors 49, 51.

A connector 53 is provided on the right side of the backboard 48.
Has been implemented. A connector 54 is attached to the left side plate 36 of the power supply unit 21.
When the connector 1 is inserted, the connectors 53 and 54 are plugged in.

Reference numeral 22 denotes left and right side plates, which are screwed and fixed to the substrate 17 or the like as described above. The cooling fan 24 on the front side is attached to the radiator plate block 43 so as to be connected thereto via the air duct 56, and the cooling fan 25 on the rear side is similarly connected via the air duct 57 to the radiator plate block 4.
It is attached so that it touches 3.

The air ducts 56 and 57 are thus interposed so that the cooling fans 24 and 25 have a wider air blowing range than the height of the heat radiating plate block 43, so that the cooling air can effectively flow in the heat radiating plate block 43. This is for controlling the flow path.

The air duct 58 and the cooling fan 5 on the rear right side
9 is for cooling the power supply unit 21,
The power supply unit 21 is independently cooled by exhaust gas. Other reference numerals 26 are a front cover, 27 is a back cover, 16 is a top cover (most of which is broken and only a part is shown), and 60 is a bottom cover.

FIG. 15 shows a front view of the connection state of the high frequency circuit of the transmission power amplifying device 5 for four units and one system. A transmission power distributor 6 and a transmission power combiner 7 are provided on the right and left sides of the transmission power amplification device 5 mounted on the rack 2 and having the same configuration as that described in FIG.
Is attached to the rack 2.

A small power transmission signal power (not shown) is supplied to the transmission power distributor, branched and output to the four front connectors 61, and the input cables of the respective transmission power amplifiers 5 are connected by the coaxial cables 62 connected to the connectors. Connected to 63.

The signal power power-amplified by each transmission power amplifier 5 is connected to an output side connector 65 and an input connector 66 of the transmission power combiner 7 by a coaxial cable 67 to combine the powers, and is not shown. Output from the output connector to the transmission line.

[0029]

The relationship between the board 17, the heat dissipation plate block 43, and the side plate 22 will be described with reference to the perspective views of FIGS. 16 and 17. First, according to FIG. 16, all of these constituent members are made of aluminum, which is lightweight and has good thermal conductivity.

Depending on whether the side plate 22 and the slide bar 12 are integrally formed by extruding die members, or are formed by connecting separate members with screws or the like. This is a considerable cost.

The heat dissipation plate block 43 is a combination of a large number of heat dissipation plates made of an extruded mold material, the longitudinal direction of which is the front-rear direction, and they are integrated by brazing with aluminum brazing. And
This brazing is carried out in a vacuum furnace in order to position with a jig and avoid inconvenience in an oxidizing atmosphere.

However, since the board 17 portion to be brazed to the heat dissipation plate block 43 is supported by a jig (not shown), there is no problem, but the space portion in which the power supply unit 21 is mounted is supported. Since there is no such thing, strain deformation occurs due to temperature changes accompanying heating and cooling. Therefore, the board 17 is divided into the first board 71 of the heat dissipation plate block 43 and the second board 72 of the power supply unit 21 mounting part. Side plate 22
Regarding the necessity of avoiding thermal distortion, it is impossible to integrate them for mounting the backboard 48 and inserting and removing the power supply unit 21.

The manufacturing process of the board 17 and the heat radiating plate block 43 will be described with reference to FIG. 17. The first board 71 is arranged above and below the heat radiating plate block 43 and the screw block 73 is arranged on the right side.
The side plate 74 for brazing is integrally formed, and the screw block 73 and the side plate 74 are brazed here while being positioned by using a jig not shown. This screw block 73 is the second
It is necessary for fixing the board 72, the backboard 48, and the like of FIG.

To attach the second substrate 72 to the heat sink block assembly 75 integrated in this way,
As shown in FIG. 18, assembling is performed using an assembling jig 76 having the same shape as the power supply unit 21.

That is, it has end face plates 77 and 78 similar to the front and rear end face plates of the power supply unit, and the left side is a screw block with the end face plates 77 and 78 fitted in the guide groove 33 of the second substrate 72. It is screwed to 73, and the right side is joined by connecting metal fittings 79 and 81, and is screwed and fixed between the upper and lower sides.

At this time, it is also necessary to use the upper and lower transmission power amplifier circuit units 19 and the circuit units 45 and 46, or to assemble them by using jigs having the same shape so that their mounting positions are aligned.

As described above, since the board 17 cannot be integrally formed with the heat dissipation plate block 43, it requires many assembly parts and a long assembly time.

The attachment / detachment of the power supply unit 21 cannot be done unless the transmission power amplifier 5 is taken out of the rack 2 and the side plate 22 is removed.
The replacement of 9 required the same work and was inconvenient.

Referring to FIG. 15, a transmission power distributor 6 and a transmission power combiner 7 are provided on both sides of the transmission power amplifier 5.
19 is shown in FIG. It can be better understood by referring to both figures, but as is apparent from the figures, when the transmission power amplifying device 5 is to be taken out from the rack 2, first, the coaxial cables 62 and 67 are connected to both ends of the connectors 61, 63 and 65, respectively.
It is necessary to disconnect the connector connection from 66.

However, the transmission power amplifier 5 and the rack 2 are
Since the connector is inserted inside the slight gap between the connector and the screw of the connector is not easy to rotate by hand, and the grips 15 on the left and right front sides are close to each other, the screw of the connector is rotated. It was extremely difficult and troublesome.

Next, a conventional structure for attaching and fixing the transmission power amplifying device 5 to the rack 2 will be described with reference to the side view of the partial cross section of FIG. The figure shows the right side of the transmission power amplifier 5.

The handle 15 on the front side is attached to a U-shaped attachment fitting 83 in plan view which is screwed to the side surface of the transmission power amplifier 5, and the lower end front surface of the attachment fitting 83 is cut out. A screw hole 84 is provided on the rear surface side, and a screw 85 with a neck is screwed into the screw hole 84 so that the neck portion fits into the screw hole 84 and cannot be removed by simply pulling.

As shown in the sectional view of FIG. 11, the slide guide 11 attached to the rack 2 is a sheet metal bent and formed in a U-shaped cross section and is provided so as to extend in the front-rear direction. It is bent to block the U-shaped end. According to FIG. 20, the bent end surface 87 at the front end
A hole 88 is opened in the back side, and a non-rotating nut 91 is held inside the rear side via a spacer 89 by a recess of a holding metal fitting 93.

The upper and lower sides of the holding metal fitting 93 are fixed together with the spacer 89 together with countersunk screws 94 from the bent end surface 87. The nut 91 can be appropriately moved in the vertical and horizontal directions within the recess of the holding fitting 93, and can be moved to an optimum state according to the center position of the screw 85 with a neck.

Further, the reason why the spacer 89 is interposed is that the tip screw portion of the screw 85 with a neck protrudes rearward from the mounting metal fitting 83, while the spacer 89 or the like remains in the space even when it is removed from the nut 91. So that the threaded portion can be accommodated in the mounting metal fitting 83 and the bent end surface 87.
This is because it is possible to tighten or loosen the screw with a neck 85 in a state of being in contact with.

According to the conventional mounting and fixing screw structure, as is apparent from FIG. 20, when the transmission power amplifying device 5 is inserted and mounted in the rack 2, the side slide bar 12 is placed on the slide guide 11 and pushed in. When attaching, the neck screw 85 is lowered because the head side is heavier than the tip screw side as shown in the figure,
The tip of the threaded portion is tilted upward.

As a result, the pushing force of the heavy transmission power amplifying device 5 causes the tip of the screw portion to impact on the surface of the bent end surface 87 of the slide guide 11, causing a trouble such as bending the necked screw 85 with a momentum. . This occurs because the screw tip cannot be seen directly because it occurs at the position where the screw tip enters the inside of the rack 2 as shown in FIG. 19, and it is difficult to prevent the occurrence of trouble unless careful work is performed. This is because.

FIG. 21 shows a state in which the transmission power amplifying device 5 is inserted into the rack 2 and tightened with a screw 85 having a neck.
Is shown in the plan view of FIG. The width of the spacer 89 is the slide guide 1
It is appropriately wider than the inner width of 1.

With this structure, a gap S is secured between the inner side surface 96 of the slide guide 11 and the side surface 97 of the side surface plate 22 of the transmission power amplification device 5, and the inner side surface 96 made of metal and the aluminum material. Since the contact with the side surface 97 is avoided and the contact with the side surface 97 is made on the surface 98 with the spacer 89, it is prevented from being damaged. For this reason, the spacer 89 is made of a synthetic resin material having a low friction coefficient.

However, the front side of the side surface 97 is protected as described above, but the rear side can freely move in the left and right directions when it is inserted and removed, so that it comes into contact with the inner side surface 99 on the rear side of the slide guide 11, and at this portion. There is an inconvenience of causing scratches.

The same applies to the relationship between the slide guide 11 and the slide bar 12 as described above. That is, referring to the side view of FIG. 22A and the front view of FIG. 22B, a cylindrical member 101 of a synthetic resin material having a small friction coefficient is press-fitted into the slide bar 12 at three positions, namely, the front and rear portions and the intermediate portion. This cylindrical member 101 is the slide guide 1.
I try to make contact with 1. In this way, the slide bar 12 is prevented from being scratched by contact,
Since there is a step due to the cylindrical member 101, the end of the cylindrical member 101 hits the front end of the slide guide 11 at the time of insertion, and the transmission power amplification device 5 has to be lifted a little each time, which makes the insertion work troublesome. there were.

It is an object of the present invention to provide a communication device which solves the above-mentioned problems of the prior art.

[0053]

According to the first aspect of the present invention, a guide formed on the upper and lower surfaces from the front to the rear and the guide are provided. A power supply unit to be inserted into the power supply unit, a circuit board mounted on the outside of at least one of the upper and lower surfaces, a connector mounted on the front surface of the circuit board, and a connector mounted on the front surface of the power supply unit. Becomes
The communication device is configured such that the connector of the power supply unit and the connector of the circuit board are plug-in connected with the insertion of the power supply unit into the guide.

According to the second aspect of the present invention, a cooling air flow path is provided between the thermoconductive substrates facing each other, and a heat dissipation plate is provided integrally with the substrate in the cooling air flow path. Is a communication device in which a heat generating circuit unit is mounted on the outside of the mounting part.

According to the third aspect of the invention, there are provided guides which are provided on the left and right sides of the rack or the device accommodating housing in the front-rear direction so that the device can be supported and can be inserted / removed, and the device inserted and mounted in the rack or the device accommodating housing by the guide. And a substantially U-shaped handle which is attached to the front left and right sides of the device and which is gripped when being inserted into and removed from the rack, the handle having both connecting portions of the legs as outer sides, and the both legs having mounting portions of the device unit. A spring for pulling the handle inward is provided between the spring stopper at the inner end of the leg and the mounting portion, and the pulling force of the spring is provided. A lock hand that is set and maintained in the pulled-out position by a guide that is in a displaced position in the state where the handle is pulled out against the guide and a guide that is in communication so that the handle can be moved from the displaced position to the normal position. It is releasably provided comprising communication apparatus.

According to a fourth aspect of the present invention, there is provided a communication device configured to mount and fix the device with a mounting screw in a state where the device is housed in a rack or a device housing case, wherein the mounting screw is a device It is attached to the inside of the cylinder of the mounting portion so as to be able to move forward and backward, and a ring for retaining is attached to the middle part, and the ring is between the retracted position for taking out the communication from the retracted position for advancing the inside of the cylinder. Is a communication device configured to move back and forth.

According to the fifth aspect of the invention, a slide guide which is provided on the left and right sides of the rack or the device accommodating housing and extends in the front-rear direction so as to support and slide the device into and out of the frame or the device accommodating housing can be mounted on the rack or the device accommodating housing. A communication device including a device to be inserted and mounted, wherein the upper and lower surfaces of the slide guide and a side end face in contact with a side surface of the device are covered with a synthetic resin.

[0058]

According to the first invention means of the present invention, the power supply unit can be inserted and removed as a single unit without taking out the transmission power amplifying device from the rack as in the conventional case. Since the plug-in connector is on the upper front side, ventilation for cooling the inside of the power supply unit can be performed without any problems. Further, by arranging the plug-in connector on the upper part of the front surface of the power supply unit, the area on the front surface side is increased and the fuse can be arranged in this portion, so that the fuse can be directly replaced on the front surface.

According to the second invention means, the heat dissipation plate including the substrate of the accommodating portion of the power supply unit can be integrally or integrally attached without brazing. Further, since the side plate can be integrally formed, the manufacturability is improved.

According to the third aspect of the invention, since the handle that is necessary for accommodating and pulling out the device is not used or can be accommodated in the device when necessary, the protruding portion is eliminated, and the obstacle due to the handle is eliminated and the front face is removed. Various tasks can be performed without any problems.

According to the fourth aspect of the invention, the mounting screw can move forward and backward in the axial direction in a horizontal state without being tilted by the retaining ring in the cylinder, so that when the device is inserted, the tip of the screw portion is located at any position. Even if it does not touch, there is no inconvenience such as bending.

According to the fifth aspect of the invention, the synthetic resin covering the upper and lower surfaces and the side end surfaces of the slide guide does not cause scratches on any part of the device contact surface when the device is inserted or removed.

[0063]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The communication device of the present invention will be described below in detail with reference to the drawings.

In the present invention, as shown in the perspective view of the essential part of FIG. 1, the upper and lower substrates 103, 103 of the transmission power amplifier 5 are shown.
And the heat dissipation plate portion 104 and both side plates 105, 10
6, slide bar 107, block 108 for preventing inclination
Is an integrally molded product 109 formed by cutting and cutting an elongated aluminum extrusion mold material into the illustrated shape.

A control circuit board 110 made of a printed board is mounted on the upper board 103, and a connector 11 is provided on the front surface.
1 is implemented. As shown in FIG. 2B, the connector 111 has guide pin holes 112 on both left and right sides.

Two pairs of synthetic resin guide members 117 having grooves 116 in the front-rear direction are attached to the accommodation portions of the power supply unit 115 on the right inner facing surfaces of the upper and lower substrates 103. As shown in the cross-sectional view of FIG. 2C, the guide member 117 is fitted with the projection 119 of the guide member 117 in a press-fitted state and locked in the through hole 118 of the substrate 103, and is attached at a plurality of positions. There is something.

The box-shaped power supply unit 115 is an integrally molded product 1
09, the left and right side plates 122, so as to be inserted from the front side.
The groove 123 of the guide member 117 projects upward and downward.
It fits in 16. The front plate 125 is largely expanded upward, and the connector 1 is provided on the rear side thereof.
26 is attached. This connector 126 is shown in FIG.
As shown in the cross-sectional view of FIG. 2B, it has guide pins 127 on both left and right sides, and they are fitted into the guide pin holes 112 of the connector 111 of the control circuit board 110 and are positioned relative to each other.

On the front side of the widened portion of the front plate 125, the fuse 128, which is conventionally on the right side, is attached. Lever-type insertion / extraction tool 12 on the left and right below
9 is provided and is used for facilitating plug-in connection or extraction of the connectors 111 and 126.

This power supply unit 115 is an integrally molded product 10
The state in which the connectors 111 and 126 are inserted into the connector 9 and plugged in is shown in the side sectional view of FIG.

The front plate 126 is provided with an air intake port to which an air filter 131 similar to the conventional one is attached, and the rear plate is provided with an exhaust hole 132, and the same cooling fan as in FIG. 14 is attached to the back side of the integrally molded product 109. The heat generated inside is discharged by 59 and cooled. Other operation parts and display parts 133 are attached to the front plate 125.

As described above, according to the present invention, the power supply unit 115 can be easily inserted and removed from the front by removing the front cover (not shown) without taking out the transmission power amplifier 5 from the rack 2, and other than that. Moreover, it has become possible to check and replace the blown display type fuse 128. The circulation of the cooling air is also carried out without any resistance.

In addition, since the space portion where the conventional backboard and a large number of connectors existed can be effectively utilized and only the front plate 125 is enlarged in the upward direction, the size is not substantially increased. The power amplification device 5 itself does not become large. The reduction of the connector connection points improves the reliability of the electrical connection.

A method of manufacturing the extruded die material of the integrally molded product 109 will be described with reference to FIGS. 3 and 4.
First, according to FIG. 3A, the substrate 103, 103, the heat radiating plate portion 104, the side plates 105, 106, the slide bar 107, and the portion 135 to be the tilt prevention block 108.
And are extruded into a long shape by an extrusion die in the illustrated shape.

After that, it is cut to a required length and cut into a shape as shown in the perspective view of FIG. Although it is possible to greatly simplify the process as compared with the conventional process of manufacturing and assembling the members of the respective parts, it is necessary to separately attach a guide member for inserting the power unit. Further, it may be necessary to process the inner surface in order to obtain the dimensional accuracy of the height width of the power supply unit accommodating portion, but the cutting process requires a special processing device. In addition, there is a limit to the number of heat sinks that can be formed at narrow intervals.

The one shown in FIG. 3 (b) has a substrate 103, a heat radiating plate portion 104, side plates 105, and
106 and a portion to be the slide bar 107 are individually molded, and the portion of the slide bar 107 is butted and integrated by a screw (not shown).

The heat radiating plate portions 104 are staggered so that they fit into each other's spaces, and can be molded at relatively narrow intervals. Since the tips of the heat sinks enter the valleys of the mating parts at close intervals, a synthetic resin having good heat conductivity and adhesiveness is applied to the gaps or a heat transfer member having elasticity is interposed between them. By transmitting heat, heat can be effectively dissipated.

Portion 13 to be the inclination preventing block 108
5 may be formed only on the upper member. In addition, the power supply unit insertion portion can be easily cut separately and the dimensions can be made accurate. A guide groove 136 for inserting the power supply unit is provided in this portion.
Can also be directly formed by cutting.

What is shown in FIG. 4A is the substrate 1
03 part, left and right side plates 105, 106, and slide bar 1
The part to be 07 is extruded into a long length, cut into a required length, and stacked on top of each other so that the slide bar 107 is joined with a screw (not shown).

The heat radiating plate portion 104 is formed so that alternating shallow grooves 138 and deep grooves 139 face each other as shown in FIG. 7B, and both ends of FIG. A heat dissipation plate 141 extruded in a dovetail shape is cut into a predetermined length and fitted, and the surfaces of both substrates 103 and 103 are pressed by an appropriate press or jig so as not to move, and both ends are trapezoidal in the deep groove 109. The wedge-shaped tool is pressed into and pushed through, or is pulled out to form a groove 139 adjacent to the dovetail-shaped portion of the heat dissipation plate 141 as shown in FIG.
Intimately integrate the walls of. In this case, the pulling-out method is more reliable in consideration of the buckling of the tool.

This state is shown in FIG. 9A, but it is easy to preliminarily form the grooves 136 for inserting the power supply unit so as to face each other vertically. Further, it is efficient to process the substrate 103 portion into a predetermined shape and attach the heat dissipation plate 141 as shown in FIG. 1 instead of the shape shown in FIG. In this embodiment, the substrate 10
Since the same molded body including 3, the side plates 105 and 106 and the slide bar 107 can be used, the cost is low. In addition, it is necessary to attach the block for tilt prevention as a separate component.

The substrate 10 shown in FIG.
3, a trapezoidal dovetail-shaped groove 143 is formed in parallel, and a heat dissipation plate 141 having a dovetail-shaped shape fitted at the groove 143 is press-fitted. When press-fitting, it is necessary to protect with a suitable jig so that buckling does not occur. Alternatively, instead of press fitting, it is also possible to apply and interpose a synthetic resin having good thermal conductivity and adhesiveness to the fitting portion.

The front grip portion of the present invention will be described with reference to FIGS. First, referring to the cross-sectional view of FIG. 5, the handle assembly 151 includes a round bar and a parallel part 152.
And a connecting portion 153, the main body is composed of a handle main body 154 and a support frame 155 which are substantially U-shaped.

The support frame 155 is a metal plate which is L-shaped in plan view and is bent and formed in a U-shape in rear view. Handle body 15
4 is a parallel portion 1 to the through hole 156 of the front plate of the support frame 155.
52 is penetrated and movable.

A washer 157, a compression coil spring 158, a square washer 159, and an E-shaped or C-shaped retaining ring 161 fitted in the groove of the handle body are fitted to the inner surfaces of the upper and lower parallel portions 152, which are penetrated, respectively. Compressed coil spring 158
It is pushed and pulled in by the rear direction.

A screw hole is provided at the tip of the inside in the vertical direction, and a guide pin 162 is screwed into the screw hole from the vertical direction and attached. Guide pin 1
The head of 62 fits into and fits into guides 165 and 166 formed on the upper and lower surfaces of the support frame 155.

The handle assembly 151 of FIG. 5 is attached by screwing to the front surface of the right side plate 106 (FIG. 1) of the main body of the apparatus, but the one attached to the left side plate 105 is symmetrical to that of FIG. Things apply.

Referring to FIG. 6, the handle body 151 is pulled toward the back side by the restoring force of the compression coil spring 158,
The connecting portion 153 is in contact with the front surface of the support frame 155 and is in the storage position. At this time, the guide pin 162 moves along the guides 165 and 166 of the support frame and is positioned at the rear end thereof.

To pull out the handle body 154, the connecting portion 1
Since the central portion of 53 is formed in a curved shape so that it can be easily taken out, the state shown in FIG. 5 can be obtained by pinching and pulling out this portion.

Here, it is important to maintain the pulled-out state, otherwise the hand will be returned to the storage position by releasing the hand. Referring to FIG. 7, there is shown a plan view as seen from the upper surface, but the guides 165 and 166 are formed into bent shapes rather than simple straight lines.

That is, in the state shown in FIG. 7A in which the handle main body 154 is in the pulled-out position with respect to the support frame 155, the guide pin 162 guides the handle main body 154 to the normal position.
It is fitted in the recessed position 168 of 65. At this recessed position 168, a stable state is maintained even if the handle body 154 is pushed and pulled in the front-rear direction.

Even when the hand is released, the compressive restoring force of the compression coil spring 158 exerts a tensile force in the axial direction to maintain the same state. Although the locked state is maintained in this way, the handle body 154 is grasped in order to be released and retracted to the accommodation position.
As shown in FIG. 6B, the through hole 156 is used as a fulcrum to slightly incline in the lateral direction against the tension force of the compression coil spring 158. As a result, the guide pin 162 is positioned at the eccentric position 169 which is a lateral bending position of the guide.

It is easy to understand that the rest is moved to the accommodation position in the rear direction by the restoring force of the compression coil spring 158, without any explanation. The guide pin 162 reaches the rear end position of the guide 165. This state is exactly the state shown in FIG.

In order to change the state from the housed position to the pulled-out position, the guide pin 162 is moved to the guide 1 by holding the handle body 154 and pulling it in the pulling-out direction.
Move in the pulling direction along 65. Along with this, the handle body 154 tilts with respect to the support frame 155, and the guide pin 162 reaches the position of the offset position 169 of the guide 165.
Since the guide pin 162 cannot be further pulled out, the guide pin 162 is positioned at the recessed position 168.
By tilting 4 to the normal state, the stable state can be easily obtained.

Although not explained, the lower guide 166
The relationship between the guide pin 162 and the guide pin 162 has exactly the same configuration, operation, and effect. In addition, square washer 1
The reference numeral 59 is set so as to make light contact with the upper and lower inner surfaces of the support frame 155, respectively, to prevent the handle body 154 from inadvertently tilting in the vertical direction when the handle body 154 is housed or pulled out, and is smoothly moved. It is suitable to be made of a synthetic resin material having a low coefficient of friction because it is interposed for obtaining.

The reason for accommodating the handle 154 in this way is not necessary when the power supply unit 115 of the transmission power amplification device 5 can be maintained from the front side. This is necessary because the coaxial connector must be attached and detached when the situation where it is taken out of the rack 2 for regular maintenance and inspection for other reasons occurs, and the work at that time can be performed easily. is there.

Next, the invention of the set screw portion will be described with reference to FIGS. 5 and 6. The set screw portion is provided below the support frame 155 of the handle assembly 151.
The supporting frame 155 in this portion is L-shaped in a plan view, and the side surface is fixed to the side plates 105 and 106 of the apparatus main body with screws.

The set screw 171 comprises a head portion 172, an intermediate shaft portion 173 and a tip screw portion 174. Support frame 1
A tubular body 176 is caulked and fixed to the front plate 175 of 55 toward the rear side. This cylinder 176 has a set screw 1
It has a small diameter through hole 177 that penetrates the shaft portion 173 of 71 and a large diameter recess 178 that accommodates the screw portion 174 on the back side.

The set screw 171 is inserted into the cylindrical body 176 in the state shown in the drawing, and is screwed into the threaded portion 174.
The female screw portion 79 is fixed by tightly screwing the shaft portion 173. Alternatively, the shaft portion 173 and the screw portion 1
It is configured so that it fits into a groove (not shown) formed at the boundary with 74 and does not normally come out. As described above, the shaft 173 of the set screw 171 is movable on both sides of the cylindrical body 176 between the small-diameter through holes 177, and the set screw 171 does not come off even when pulled.

In the set screw 171, the shaft portion 173 has the through hole 17
7 and the ring member 179 is fitted into and supported by the recess 178, so that the ring member 179 can move back and forth in a substantially horizontal posture. Therefore, it does not tilt significantly.
Further, since the ring member 179 is set so as not to come out of the recess 178 of the cylindrical body 176 even when the set screw 171 is pushed into the cylindrical body, the inclination due to the ejection does not occur.

Slide guide 11 mounted on the rack side
A non-rotating nut 91 is movably held in a recess of a holding metal fitting 93 through a spacer 89 similar to the conventional one.
It is attached and fixed with a screw 94.

As shown in FIG. 6, when the set screw 171 is screwed into the nut 91 and fixed, the rear end of the cylindrical body 176 contacts the end face 87 of the slide guide 11 and is fixed in position. Can be tightened to.

According to the present invention, the spacer 89 on the slide guide 11 side is not required when the recess 178 of the cylindrical body 176 has a length sufficient to accommodate the threaded portion 174. As described above, according to the present invention, since the set screw 171 does not tilt, the tip of the screw portion does not come into contact with the end face 87 of the slide guide 11 and bends, so that no trouble occurs.

The slide guide of the present invention will be described with reference to FIG. In the perspective view of the separated state of FIG. (A), the slide guide 181 is a metal fitting having a U-shaped cross section and extending from the front to the rear and having an upper surface 182 and a lower surface 183. The front end surface 184 and the rear end surface 185 are bent and bent. Is
It is an elongated box shape as a whole. The hole 186 on the side surface is a hole for attachment to a rack or the like. A U-shaped synthetic resin covering member 188 having a low height is attached to the upper surface 182 and the lower surface 183, and an adhesive or the like is applied to attach the same. The covering member 188 has strength against compression and has a low coefficient of friction.
It has moderate elasticity.

The length of the covering member 188 is the slide guide 1
The lengths of the upper and lower surfaces 182 and 183 are the same, and the front and rear ends thereof are restricted by the front end surface 184 and the rear end surface 185 so that they cannot move in the length direction.

According to the sectional view of FIG.
Is shown attached. If this slide guide 181 is applied to a rack and the transmission power amplification device 5 of FIG. 1 is mounted, the slide bar 107 slides on the covering member 188 on the upper surface 182, so that the friction contact of the slide bar 107 occurs. Prevents scratches.

Even if the front of the transmission power amplification device 5 tilts downward and the block 108 for preventing rotation comes into contact with the slide guide 181 during pulling out or insertion, the lower surface of the covering member 188 attached to the lower surface 182 is As a result, the rotation preventing block 108 is not damaged.

Since the U-shaped bottom surface (side surface in the figure) of the covering member 188 covers the side end surfaces of the upper surface 182 and the lower surface 183, the side plates 105 and 1 of the transmission power amplifying apparatus 5 are covered.
Since it is inserted or pulled out in contact with the entire side surface of 06,
This also means that the side plates are not scratched over the entire surface.

The covering member 188 is not limited to the U-shaped member, but may be covered with a corresponding synthetic resin by means such as coating. As described above, the slide guide according to the present invention has an extremely simple structure,
Its practical effect is remarkable.

The present invention is not limited to the relationship between the rack and the transmission power amplifier, but is also applied to a case where the device is mounted in a device housing other than the rack. It is generally applicable.

The power supply unit and the circuit board to be plug-in connected may be either on the upper side or the lower side, and if necessary, may be interveningly connected to both sides. Similarly, a circuit unit with heat generation that requires cooling does not need to be attached to both the upper and lower sides, and either one of the cases is included.

[0111]

As described in detail above, according to the communication device of the present invention, by applying it to various communication devices, the unit can be attached and detached without removing the device, and the unit can be cooled by the cooling fan. The implementation efficiency can be improved without any influence.

By integrally forming a substrate for cooling the heat generating unit and the heat radiating plate without welding, a product having high dimensional accuracy can be efficiently manufactured. Since the handle for accommodating or pulling out the device can be accommodated in the device, the appearance is improved without protruding to the front surface, and the working environment is good.

Since the mounting screw is movable only in the axial direction, there is no problem such as bending, and reliability is improved. The inconvenience that the portion that comes into contact with the slide guide coated with the synthetic resin is damaged by friction is eliminated, and the quality of the mating member that comes into contact is maintained.

As described above, according to the present invention, when applied to a communication device, the workability of assembling and the workability of maintenance and inspection are very good, and the practical effect is extremely remarkable.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part of the present invention.

FIG. 2 is a sectional view of each part of FIG.

FIG. 3 Method for manufacturing integrally molded product

FIG. 4 Method for manufacturing integrally molded product

FIG. 5: Handle and set screw portion of the present invention

6 is a storage position and a mounting state of FIG.

FIG. 7 is a plan view of FIGS. 5 and 6;

FIG. 8: Slide guide of the present invention

FIG. 9 is an external front view of a communication device according to the present invention.

FIG. 10 is a perspective view showing a state in which the transmission power amplifier is pulled out from the rack.

FIG. 11 is an explanatory diagram of the operation of a block for preventing tilt.

FIG. 12 is a perspective view showing an arrangement state inside a transmission power amplifier.

FIG. 13 is a perspective view showing a mounting position of a power supply unit.

FIG. 14 is an exploded perspective view of an internal arrangement state of main parts of the transmission power amplifier.

FIG. 15: State of connection / disconnection with transmission power amplifier

FIG. 16 is a relationship between a conventional board, a heat sink block, and a side plate.

FIG. 17 is a manufacturing process of FIG. 16;

FIG. 18: Method for assembling second substrate

FIG. 19 is a plan view cross-sectional view of FIG.

FIG. 20: Structure of a conventional mounting and fixing screw part

FIG. 21 is a plan view of the state of being attached in FIG.

FIG. 22 Relationship between conventional slide guide and slide bar

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 communication device 2 frame 3 receiving unit 5 transmission power amplifying device 6 transmission power distributor 7 transmission power combiner 11 slide guide 12 slide bar 14 tilt prevention block 15 handle 17 board 18 control circuit board 19 transmission power amplification circuit unit 21 Power supply unit 22 Side plate 24, 25 Cooling fan 29 Fuse 45, 46 Circuit unit 61, 63, 65, 66 Connector 62, 67 Coaxial cable 103 Board 104 Heat sink part 105, 106 Side plate 107 Slide bar 108 Tilt prevention block 109 One-piece molded product 111 Connector 115 Power supply unit 125 Front plate 126 Connector 128 Fuse 141 Heat sink 151 Handle assembly 154 Handle body 155 Support frame 158 Compression coil spring 162 Guide pin 165, 166 guy 168 recess 169 bent portion 171 setscrew 176 cylindrical body 178 recess 179 ring member 181 slide guide 188 covering member

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuo Hirafuji 1015 Kamiodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa Fujitsu Limited

Claims (5)

[Claims] 1. A guide (116) formed on the upper and lower surfaces from front to rear, a power supply unit (115) inserted into the guide, and a circuit board attached to the outside of at least one of the upper and lower surfaces. (110), a connector (111) mounted on the front surface of the circuit board, and a connector (126) mounted on the front surface of the power supply unit, to a guide (116) of the power supply unit (115). With the insertion of the connector (1) of the power supply unit (115)
26) and the connector (111) of the circuit board (110) are configured to be plug-in connected. 2. A thermoconductive substrate (10) facing each other.
3) A heat radiating plate (104) is integrally provided with the substrate in the cooling air flow passage between (103) and the heat generating circuit unit (1).
9) A communication device, which serves as a mounting part to which the device 9) is attached. 3. Guides provided on the left and right of the rack or the device housing in the front-rear direction so as to support and insert the device, and a device inserted and mounted in the rack or the device housing by the guide, and the left and right of the device. A communication device comprising a substantially U-shaped handle (154) attached to the front surface and serving as a grip when inserted into and removed from a rack, wherein the handle has a connecting portion (153) of both legs as an outer side and both legs (152) are a device. Of the handle (1) between the spring stoppers (159) (161) at the inner ends of the legs and the mounting portion.
54) is provided with a spring (158) for pulling inward, and a guide and a biased position (169) which are displaced in a state where the handle is pulled out against the pulling force of the spring. 169) A communication device, characterized in that a lock means that is set and maintained at the pulled-out position by a guide (165) that is communicated so that it can be moved from the normal position (168) to the normal position (168) can be released. 4. A communication device configured to mount and fix the device with a mounting screw (171) in a state where the device is accommodated in a rack or a device accommodating housing, wherein the mounting screw is a mounting portion of the device. Of the cylinder body (176) is attached to the cylinder body (176) so as to be able to move back and forth, and a retaining ring (179) is attached to an intermediate portion of the cylinder body (176).
9) A communication device characterized in that it is configured to move back and forth in the cylinder between an retracted position for taking out the communication and an advanced position for fixing the inside. 5. A slide guide that is provided on the left and right sides of the rack or the device housing to extend in the front-rear direction and that supports and slides the device into and out of the rack, and a device that is inserted and mounted in the rack or the device housing by the slide guide. A communication device comprising the above-mentioned slide guide (181), wherein upper and lower surfaces of the slide guide (181) and a side end surface in contact with a side surface of the device are covered with a synthetic resin (188).