JP2001308563A - Panel-mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the mounting structure of a panel with improved productivity, operability, and maintenance properties by eliminating the need for the control of the clamping torque of a screw or the like for mounting a panel and positioning a connector, a heat sink, or the like, and the need for operation for connecting cables and an interface substrate or the like for connection. SOLUTION: This mounting structure of the panel is provided with a panel 1 that is provided with an enclosure 5 where a heat generation module 3 is arranged inside, a chassis 2 where the heat generation module 3 is packaged, and a heat sink 4 where the chassis 2 for radiating heat being propagated from the chassis 2 via a deep wall 7 of the enclosure 5. Further, the structure is provided with a fixed connector 32 that is fixed to the enclosure 5, a movable connector 31 that is formed so that the chassis 2 is covered and is fitted to the fixed connector 32 on a reverse side, a fixing tool 8a of the like on a front, and a shelf 2 that becomes a guide when the panel 1 is accommodated in the enclosure 5 and has grooves 40a and 40b where the fixing tool is inserted when the heat sink 4 is pressed against the deep wall 7 of the enclosure 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel mounting structure, and more particularly to a panel mounting structure for radiating heat generated from a panel or the like housed in a housing of a communication device or the like to the outside of the housing. .

[0002]

2. Description of the Related Art Conventionally, in order to radiate heat generated from a panel or the like of a communication device housed in a housing to the outside of the housing,
For example, a panel mounting structure as shown in FIG. 5 is employed.

[0003] The mounting structure of this panel includes a chassis 102 on which a heat generating module 103 is mounted, a panel 101 in which the chassis 102 is installed, and a panel 101.
Is constituted by a housing 107 or the like in which is stored.

The chassis 102 of the panel 101
Functions to radiate heat generated from the heat generating module 103. Further, a heat radiating plate 104 for radiating the heat conducted from the chassis 102 to the housing 107 is provided on the rear surface of the panel 101. Further, the panel 101
Shafts 105a and 105b for fixing the panel 101 to the housing 107 are provided on the upper and lower sides, and male screws 111a and 111b are formed on the shafts 105a and 105b on the side protruding from the back surface of the panel 101. The shape is adapted to tightening tools such as screwdrivers. In addition, a connector 106 for electrical connection with another panel housed in the housing 107 is provided on the front surface of the panel 101.

[0005] The housing 107 is provided with shelves 108a and 108b serving as guides when the panel 101 is housed. Further, a shaft 105 is provided on the surface of the back wall 109 of the housing 107 in contact with the heat sink 104 of the panel 101.
Female screws 112a and 112b corresponding to the male screws 111a and 111b formed on the a and 105b are formed.

Next, the procedure for mounting the panel 101 to the housing 107 in the panel mounting structure having the above configuration will be described.

First, the panel 101 is inserted into the housing 107 along the shelves 108a and 108b of the housing 107. Then, the heat radiating plate 104 of the panel 101 is
07 against the back wall 109, the shaft 105a,
105b is rotated with a screw fastening tool,
11b is screwed into female screws 112a, 112b formed on the surface of the back wall 109 of the housing 107. Next, Panel 1
Reference numeral 01 denotes an electrical connection from the connector 106 to a connector of another panel or an interface board 111 by a cable 110.

According to the panel mounting structure configured as described above, the heat generated in the heat generating module 103 conducts through the chassis 102, and further, through the heat radiating plate 104, the casing 1.
Since the heat is transmitted to the inner wall 109 of the panel 107 and is radiated to the outside of the housing 107, heat generation to the panel 101 is prevented.

On the other hand, a second conventional example is disclosed in
In the panel mounting structure disclosed in Japanese Patent Publication No. 88583, as shown in FIGS. 6 and 7, the base plate 10 is provided with a connector 13 provided corresponding to each module and a material having a high thermal conductivity. Module contact surface 15, and a wall contact surface 16 provided on the back of the module contact surface 15.
And are provided.

The module 20 includes a heat-generating electronic component 211.
Are mounted on the front side, a base connector 22 connected to the connector 13 provided on the back side of the printed board 21, and a heat generating portion provided on the back side of the printed board 21. Receiving surface 25 in contact with
1 is provided, and a heat transfer plate 25 for conducting heat is disposed on the base contact surface 253 that comes into contact with the module contact surface 15.

According to the panel mounting structure configured as described above, the heat generated from the heat-generating electronic components 211 mounted on the front side of the printed circuit board 21 causes the heat receiving surface 251 on the back side of the printed circuit board 21 to move. The heat is transmitted to the base contact surface 253 via the heat transfer plate 25. Also, connector 1
The heat generated inside the module 20 mounted on the base plate 3 is transferred from the base contact surface 253 to the wall contact surface 16 via the base contact surface.
The heat is radiated to the outside via.

On the other hand, a third conventional example is disclosed in
In the panel mounting structure disclosed in Japanese Patent No. 52574, as shown in FIG.
The heat generated from the heat generating component 402 provided on the heat sink upper part 412 integrated with the heat sink upper part 412
The guide 40 is pressed by the pressing contact force of the wedge structure by tightening the screw of the wedge-shaped clamp 403 provided thereon.
4 and further conducted to the chassis 405 for heat dissipation.

A flexible substrate 407 is laminated inside the heat sink upper part 412 and the heat sink lower part 413, and the heat sink upper part 412 and the heat sink lower part 41 are laminated.
3 is connected.

A printed circuit board side connector 406 with a heat sink is provided in the heat sink lower part 413.
A pair of blocks 4 fixed to the heat sink upper part 412
08 and a heat sink lower portion 413 are fixed by forming a gap a by a pair of unthreaded special screws 409 near the root for providing the printed circuit board side connector with heat sink 406 with mobility in the left-right direction. I have.

According to the heat radiating structure of the printed circuit board with the heat sink having the above configuration, the connector 406 on the printed circuit board with the heat sink can be moved in the left-right direction and the connector 410 on the mother board 414 can be moved in the horizontal direction.
To fit into the upper heat sink 412 by the wedge structure by tightening the screw of the wedge-shaped clamp 403.
Is pressed against the guide 404, the flexible substrate 407 bends, and the upper part 412 of the heat sink and the guide 404 are pressed.
It is possible to absorb a contact error between them.

[0016]

However, in the first conventional example of the panel mounting structure shown in FIG. 5, the panel 101 is fixed to the back wall 109 of the housing 107 by the fastening force of the male screws 111a and 111b. Therefore, if the tightening torque at the time of screw tightening is small or the tightening is forgotten, the heat radiating plate 104 of the panel 101 and the inner wall 1
09 does not contact properly, and a heat radiation effect in design cannot be obtained, and the device may be damaged. Therefore, there is a problem that it is necessary to control the tightening torque of the screw.

In the second conventional example of the panel mounting structure shown in FIGS. 6 and 7, the positions of the base connector 22 and the connector 13 or the base contact surface 2
If there is no positioning structure between the module contact surface 53 and the module contact surface 15, there is a gap between the base contact surface 253 and the module contact surface 15, and the heat radiation effect in the design cannot be obtained and the device is damaged. Or excessive force may be applied to the base connector 22 and the connector 13, and the connectors 22 and 13 may be damaged, or a gap may be formed between the base contact surface 253 and the module contact surface 15, There is a possibility that the connector 22 and the connector 13 may be incompletely connected with each other.
When the connector 2 and the connector 13 are fitted, there is a problem that a positioning mechanism is required so that no gap is generated between the module contact surface 15 and the base contact surface 253.

Therefore, in the first conventional example,
As shown in FIG. 5, a connector 106 is provided on the front surface of the panel 101 to prevent the connector from being damaged or improperly fitted, and the panels 101 are connected by cables 110. However, there is a problem that productivity, operability, and maintainability are reduced.

On the other hand, in the third conventional example shown in FIG. 8, the heat sink upper part 412 is pressed and contacted by a wedge structure by tightening a screw, and is conducted to the guide 404 to radiate heat. If the screw tightening torque is too small or you forget to tighten it,
Since the upper part of the heat sink 412 and the guide 404 do not properly press and contact with each other, the heat dissipation effect cannot be obtained by conduction, and the printed circuit board with heat sink 401 may be damaged, so it is necessary to control the tightening torque of these screws. There was a problem.

In view of the above, the present invention has been made in view of the above-mentioned problems in the conventional panel mounting structure, and controls the tightening torque of screws and the like for mounting the panel, and controls the connector and the heat sink. An object of the present invention is to provide a panel mounting structure which does not require positioning, does not require a cable connection operation or a connection interface board, and has good productivity, operability, and maintainability.

[0021]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a housing in which a heat generating module is disposed, a chassis in which the heat generating module is mounted, and a conductive member from the chassis. And a radiator plate fixed to the chassis for dissipating the generated heat through the inner wall of the housing, the panel mounting structure including a fixed connector fixed to the housing and the chassis. A movable connector fitted to the fixed connector on the back surface, a panel having a fixing tool on the front surface, and a guide when the panel is housed inside the housing, the heat dissipation plate is formed as described above. A shelf provided with a groove into which the fixing tool is inserted when pressed against the back wall of the housing.

According to the first aspect of the present invention, a movable connector capable of absorbing a positional error between the panel and the housing is provided on the back surface of the panel, and torque management is required for fixing the panel. Because there is a fixture that does not
The panel can be easily attached to the housing.

Further, since the movable connector absorbs a positional error between the heat radiating plate of the panel and the rear wall of the housing, the movable connector is positioned so that no gap is formed between the heat radiating plate of the panel and the rear wall of the housing. It is not necessary, and the heat radiation plate can be pressed against the inner wall of the housing while preventing damage to the connector and poor fitting, so that heat from the heat generating module can be efficiently radiated.

Furthermore, since there is no need for an operation for connecting a cable using a connector on the front of the panel or an interface board for connection as in the prior art, productivity, operability, and the like are improved.
A panel mounting structure with good maintainability can be provided.

According to a second aspect of the present invention, in the panel mounting structure according to the first aspect, the movable connector has a mounting hole into which a stepped screw is inserted, and a guide hole for positioning the movable connector. And a female terminal for fitting with the fixed connector, the stepped screw for holding the movable connector to the panel, a male screw portion,
The movable connector is provided by an elastic body interposed between the stepped screw and the mounting hole, wherein the movable connector includes a step portion having a diameter larger than the male screw portion and smaller than the inner diameter of the mounting hole. It is urged to the fixed connector side via the mounting hole.

According to the second aspect of the present invention, a stepped screw,
The movable connector can be moved in the direction of fitting to the fixed connector and in a direction perpendicular to the fitting direction by the mounting hole and the elastic body. And the position error of the movable connector in the direction perpendicular to the fitting direction with the fixed connector can be absorbed.

According to a third aspect of the present invention, in the panel mounting structure according to the second aspect, the fixed connector includes a guide pin that can be inserted into the guide hole of the movable connector, and the fixed connector is And a male terminal having a long effective fitting length to be in contact with the female terminal.

According to the third aspect of the present invention, the guide pins provided on the fixed connector are inserted into the guide holes of the movable connector so that both connectors are properly fitted and the female terminal of the movable connector is provided. Even if the fixed state of the panel changes in the direction in which the panel is inserted into the housing, the electrical connection state can be reliably maintained by the male terminal having a long effective fitting length that comes into contact with the housing.

According to a fourth aspect of the present invention, in the panel mounting structure according to the first, second, or third aspect, the fixing device is provided with:
The panel includes a knob provided on a front surface of the panel, and a latch that reciprocates in a direction perpendicular to a direction in which the panel is fixed to the housing in response to rotation of the knob.

According to the fourth aspect of the present invention, since the panel can be fixed to the housing only by rotating the knob and the two connectors can be connected at the same time, the panel can be easily attached. At the same time, whether or not the panel is properly mounted can be determined at a glance based on the direction of the knob.

[0031]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a specific example of an embodiment of a panel mounting structure according to the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of a panel mounting structure according to the present invention. FIG. 2 is a view showing a state in which the panel is housed in a housing in the panel mounting structure shown in FIG. FIG. In the panel mounting structure of FIGS. 1 and 2, each configuration of the panel 1, the chassis 2, the heat generating module 3, the heat radiating plate 4, the housing 5, the shelves 6a and 6b, and the back wall 7 is shown in FIG. Since it is the same as the conventional panel mounting structure, detailed description is omitted, and only the configuration different from the conventional one will be described below.

As shown in FIG. 2, the panel 1 is provided with a movable connector 31 on the back. In addition, fixed connectors 32 that fit with the movable connectors 31 of the panel 1 are provided on the shelves 6 a and 6 b of the housing 5. Panel 1
Are latches 8a, 8b, knobs 9a, 9b (fixtures),
By the fixing means constituted by the grooves 40a, 40b,
It is attached to the housing 5.

As shown in FIGS. 3A and 3B, the housing 5
A groove 40b into which the tip of the latch 8b is inserted is formed in the shelf 6b provided on the shelf 6b. The latch 8b is provided so as to reciprocate up and down with respect to the panel 1 in conjunction with rotation of the knob 9b. In addition, the housing 5
The groove 40a provided in the shelf 6a, the latch 8a provided in the upper part of the panel 1, and the knob 9a (FIG. 2) are also configured in the same manner as described above.

As shown in FIG. 4, the shelf 6b of the housing 5 (FIG. 1) is provided with a fixed connector 32 which is fitted with the movable connector 31 on the back surface of the panel 1 and has positioning guide pins 35. I have.

The movable connector 31 is provided so as to be freely movable on the back surface of the panel 1 by the stepped screw 34 in the mounting hole 33. Further, the mounting hole 33 is provided with a spring 42 as an elastic body for urging the movable connector 31 in the fitting direction. The movable connector 31 and the fixed connector 32 have a large effective fitting length. Even if the gap 36 is formed and the fixed state of the panel 1 fluctuates in the horizontal direction in the figure,
It is configured to be electrically connected.

A stepped screw 34 is inserted into the movable connector 31 provided on the back surface of the panel 1, and a mounting hole 33 having a hole diameter larger than the hole diameter of the stepped screw 34, and a guide pin 35 of the fixed connector 32. Are formed, and a spring 42 for holding the movable connector 31 and the fixed connector 32 fitted together and a female terminal 38 are provided.

The stepped screw 34 does not hold down the movable connector 31 even when it is inserted into the mounting hole 33 and fastened. Therefore, a stepped screw having a diameter larger than the male screw portion and smaller than the inner diameter of the mounting hole is not provided. A part 39 is formed. Also, the housing 5
The fixed connector 32 provided with a guide pin 35 is formed, and a male terminal 41 having a long effective fitting length 50 to be in contact with the female terminal 38 is provided.

Next, the mounting operation of the panel 1 to the housing 5 in the panel mounting structure having the above configuration will be described with reference to FIG.
This will be described with reference to FIGS.

First, in FIG. 2, the panel 1 is inserted into the housing 5 along the shelves 6a and 6b of the housing 5.
Then, as shown in FIG. 3A, the tips of the latches 8a, 8b are connected to the grooves 40a, 4b formed in the shelves 6a, 6b.
Start inserting at position 0b. At this time, the movable connector 3
1 moves to the fitting position by the guide pin 35 of the fixed connector 32.

Next, as shown in FIGS. 2 and 3 (b), when the knobs 9a and 9b are rotated, the latches 8a and 8b move downward in the drawing in conjunction with the rotation, and the leading ends of the latches 8a and 8b are moved. Are grooves 40a, 40 formed in shelves 6a, 6b.
The panel 1 abuts on the left end of the panel b and moves rightward in the figure. Thereby, the movable connector 31 becomes the fixed connector 3
2 and the heat radiating plate 4 of the panel 1 is pressed against the back wall 7 of the housing 5. By the above operation, the panel 1 is mounted inside the housing 5.

As shown in FIGS. 3 and 4, the movable connector 31 is freely movable on the back surface of the panel 1 and has a female terminal 38 having a large effective fitting length, and a spring 42 for holding the fitting. A gap 36 is formed in the normal fitting state, and the fixed connector 32 changes even if the fixed state changes in the vertical and horizontal directions or the fitting direction of the movable connector 31 due to the positional error of the panel 1.
Therefore, a positional error between the heat radiating plate 4 of the panel 1 and the back wall 7 of the housing 5 can be absorbed.

In the panel mounting structure configured as described above, the movable connector 31 can absorb the position error, so that the movable connector 31 and the fixed connector 32 can be prevented from being damaged, and the heat generating module 3 can be used. The generated heat is conducted to the chassis 2 and further conducted to the inner wall 7 of the housing 5 via the heat sink 4. The heat conducted to the back wall 7
The heat is radiated to the outside of the housing 5 and the heat generated in the heat generating module 3 is prevented from being accumulated in the panel 1.

As described above, according to the panel mounting structure of the present invention, the panel 1 can be mounted on the housing 5 simply by rotating the knobs 9a and 9b, so that the panel 1 can be easily mounted. be able to. At this time, it is not necessary to manage the tightening torque at the time of screw fastening unlike the related art.

Further, since the movable connector 31 absorbs a positional error between the heat radiating plate 4 of the panel 1 and the back wall 7 of the housing 5, the movable connector 31 and the fixed connector 32 can be prevented from being damaged or improperly fitted. Then, the heat radiating plate 4 can be easily pressed against the inner wall 7 of the housing 5. At this time, positioning such that there is no gap between the heat radiating plate 4 of the panel 1 and the back wall 7 of the housing 5 as in the related art, and connection by the cable 110 by the connector 106 (FIG. 5) on the front surface of the panel 1 Do not need.

Further, whether or not the panel 1 is properly mounted can be determined at a glance by the directions of the knobs 9a and 9b. For this reason, it is possible to prevent the panel 1 from being forgotten to be fixed, and it is possible to prevent the device from being damaged without obtaining a design heat radiation effect.

[0047]

As described above, according to the present invention,
A movable connector that can absorb the positional error between the panel and the housing is provided, and fixing means that does not require torque management for fixing the panel are provided. It provides a panel mounting structure with good productivity, operability, and maintainability, which does not require torque management, positioning mechanisms such as connectors and heat sinks, and does not require cable connection work or connection interface boards. be able to.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a panel mounting structure according to the present invention.

FIG. 2 is a cross-sectional view showing a state in which the panel is housed inside a housing in the panel mounting structure of FIG. 1;

FIG. 3 is an enlarged sectional view showing the fixing means of FIG. 2;
(A) shows a state where the fixing of the panel by the fixing means is released, and (b) shows a state where the panel is fixed by the fixing means.

FIG. 4 is an enlarged sectional view showing a movable connector and a fixed connector of FIG. 2;

FIG. 5 is a side sectional view showing an example of a conventional panel mounting structure.

FIG. 6 is a perspective view showing another example of a conventional panel mounting structure.

7 is a cross-sectional view showing a state where the module is mounted on a base plate in the panel mounting structure of FIG. 6;

8A and 8B are diagrams showing another example of a conventional panel mounting structure, in which FIG. 8A is a front view, FIG. 8B is a top view, and FIG.
Is a sectional view, and (d) is an enlarged view of a mounting portion of a printed circuit board side connector with a heat sink.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Panel 2 Chassis 3 Heat generation module 4 Heat sink 5 Case 6a, 6b Shelf 7 Back wall 8a, 8b Latch 9a, 9b Knob 31 Movable connector 32 Connector 33 Mounting hole 34 Stepped screw 35 Guide pin 36 Gap 37 Guide hole 38 Female Terminal 39 Step 40a, 40b Groove 41 Male terminal 42 Spring 50 Effective fitting length

Claims (4)

[Claims] 1. A housing in which a heat generating module is disposed, a chassis in which the heat generating module is mounted, and fixed to the chassis to dissipate heat conducted from the chassis through a rear wall of the housing. A fixed connector fixed to the housing, a movable connector formed to cover the chassis and fitted to the fixed connector on the back, and a front face. And a groove into which the fixing tool is inserted when the radiator plate is pressed against the inner wall of the housing as a guide when the panel is housed in the housing. A panel mounting structure comprising: a shelf provided with a panel. 2. The movable connector includes a mounting hole into which a stepped screw is inserted, a guide hole for positioning the movable connector, and a female terminal for fitting with the fixed connector. The stepped screw for holding the movable connector to the panel includes a male screw part, and a screw part having a diameter larger than the male screw part and smaller than the inner diameter of the mounting hole, and is not threaded. 2. The panel mounting according to claim 1, wherein the movable connector is urged toward the fixed connector through the mounting hole by an elastic body interposed between the stepped screw and the mounting hole. Construction. 3. The fixed connector includes a guide pin insertable into the guide hole of the movable connector, and the fixed connector includes a male terminal having a long effective fitting length that contacts the female terminal. The panel mounting structure according to claim 2, comprising: 4. The fixing device reciprocates in a direction perpendicular to a direction in which the panel is fixed to the housing in conjunction with a knob provided on a front surface of the panel and a rotation of the knob. 2. A latch according to claim 1, further comprising a latch.
4. The panel mounting structure according to 2 or 3.