JPH05206659A - Board retaining apparatus - Google Patents

Abstract

PURPOSE:To ensure the stable retaining of a voltage transformer, and to improve a heat radiation efficiency by fitting a heat-conductive resilient member around the upper end of the voltage transformer and retaining the heat- conductive resilient member while it is pressed from its upper direction with a metal retaining fixture. CONSTITUTION:A cap-shaped heat-conductive resilient member 18 is fitted around the outer periphery of an upper end 15b of a voltage transformer 15. The resilient member 18 is fixed while being pressed from its upper and lateral directions by means of a retaining metal fixture 17. This increases the degree of adhesion between the fixture 17 and the resilient member 18 and also between the resilient member 18 and the transformer 15 to a greater extent. Thereby, it becomes possible to adhere the resilient member 18 to a large area of both a top panel 15c and an exterior peripheral surface 15d of the upper end 15b of the voltage transformer 15. Accordingly, it is possible to ensure a large contact area of the fixture 17 relative to the transformer 15, which in turn causes heat generated by the transformer 15 to be efficiently dissipated and also a heat radiation efficiency of the transformer 15 to be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a substrate holding device incorporated in an electronic device such as a video camera, and more particularly to a device for connecting a plurality of signal processing substrates and a voltage converter on a connection substrate.

[0002]

2. Description of the Related Art Conventionally, an integrated video camera in which a CCD head and its system control unit are built in a camera body is disclosed in, for example, a prior application (Japanese Patent Application No. 3-308187) filed by the applicant of the present invention. Substrate holding devices as seen have been proposed.

[0003] In the past, the upper end of the voltage converter was directly held by a holding metal fitting made of sheet metal to hold the voltage converter and radiate heat.

[0004]

However, since the holding metal fitting made of sheet metal has no spring property, it is difficult to stably hold the voltage converter, and the adhesion of the holding metal fitting to the voltage converter is poor. There is a problem that the heat dissipation efficiency of the voltage converter is poor because the contact area of is insufficient.

The present invention has been made in order to solve the above problems, and an object of the present invention is to provide a substrate holding device capable of stably holding the voltage converter and improving the heat radiation efficiency at the same time. I am trying.

[0006]

SUMMARY OF THE INVENTION To achieve the above object, a substrate holding device of the present invention comprises a connection substrate horizontally arranged at the bottom of a case body and vertically connected on the connection substrate. A plurality of signal processing boards and voltage converters, holding metal fittings for holding the plurality of signal processing boards and the voltage converters from above, and fitted to the upper end of the voltage converters,
The heat-conducting elastic member is pressed from above by the holding metal fitting.

[0007]

In the substrate holding device of the present invention constructed as described above, the heat conductive elastic member is fitted to the upper end of the voltage converter, and the heat conductive elastic member is held by pressing the heat conductive elastic member from above with the holding metal fitting. As a result, the degree of mutual adhesion of the heat conductive elastic member to the voltage converter and the holding metal fitting can be increased. In addition, vibration and impact on the voltage converter can be absorbed by the heat conductive elastic member.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a video camera to which the present invention is applied will be described below with reference to the drawings.

First, as shown in FIG. 5, in the video camera 1, a lens 3 is attached to a camera body 2.
The camera body 2 includes a case body 2a formed by aluminum die casting, a U-shaped case lid body 2b screwed to the upper portion of the case body 2a by a total of four screws 4, and the case body 2a and the case body 2a. A front panel 2c and an operation panel 2d, which are screwed to the front and rear ends of the case lid 2b by four screws 5, respectively, form a rectangular parallelepiped sealed casing. The lens 3 is attached to the front surface of the front panel 2c by the lens mount adapter 6. The video camera 1 is configured as an integrated video camera for high resolution, and the video camera 1 has three R, G, and B (described later) inside the camera body 2.
A three-plate type CCD head having one CCD substrate and its system control unit are incorporated.

Next, the substrate holding device 9 incorporated in the camera body 2 will be described with reference to FIGS. 1, 3 and 4.
First, R inside the front panel 2c in the case body 2a,
A three-plate type CCD head 11 having three CCD substrates for G and B is attached, and a substrate holding device 9 constituting a system control unit thereof is arranged between the CCD head 11 and the operation panel 2d.

The board holding device 9 includes a horizontal connecting board 12 called a mother board and two small signal processing boards 13 inside which are parallel to and perpendicular to the longitudinal direction (front-back direction) of the case body 2a. And two large signal processing boards 14 on the outer side, a voltage converter 15 which is parallel to and perpendicular to these, a connector board 16 which is perpendicular to the longitudinal direction of the case body 2a, and pressed by sheet metal. It is configured by a horizontal holding metal member 17, a cap-shaped heat conductive elastic member 18 made of rubber or the like having high heat conductivity, and the like.

Next, the order of assembling the substrate holding device 9 will be described together with the configuration.

First, the lower end 15a of the voltage converter 15, which is a heating element, is vertically fixed onto the connection board 12 by soldering, and the four corners of the connection board 12 are horizontally fixed to the bottom of the case body 2a by screws 20. Screw on.

Then, the signal processing boards 13 and 14 are mounted on the connection board 12 to the board-to-board connector 21,
The vertical connection is made by inserting 22 from above.

Then, a cap-shaped heat conductive elastic member 18 is fitted around the upper end 15b of the voltage converter 15.

Then, the holding metal fitting 17 is horizontally inserted on the heat conductive elastic member 18 between the two outer signal processing boards 14, and the front and rear ends 17a and 17b of the holding metal fitting 17 are connected to the front panel 2c and the operation. A total of four screws 23 are screwed to the upper end of the panel 2d, and the front panel 2c and the operation panel 2d are firmly connected by the holding metal fittings 17. At this time, the holding metal fitting 17 presses the heat conductive elastic member 18 from above with a constant pressing force.

At this time, a pair of positioning plates 24, which are bent pieces perpendicular to the longitudinal direction of the case main body 2a, which are integrally formed by bending at the two locations in the front-rear direction of the central portion on the lower surface of the holding metal fitting 17, are formed. A pair of locking grooves 26 having a taper 25 for invoking are formed at the lower ends of the two, and the upper edges 13a of the two inner signal processing boards 13 are invoked by the taper 25.
The locking groove 26 is inserted into and locked from above.

Further, a positioning plate 27, which is a bent piece parallel to and perpendicular to the longitudinal direction of the case main body 2a, which is integrally formed by bending on one side of the central portion on the lower surface of the holding metal fitting 17, and the above-mentioned pair of The heat conductive elastic member 18 is sandwiched and held between the positioning plate 24 and the left and right sides against the elasticity.

Then, the two upper ends of the two outer signal processing boards 14 are laterally screwed to the two left and right sides of the holding metal fitting 17 by two screws 28, respectively.
Complete the assembly.

The connection substrate 12 and the CCD head 11
The head substrate 29 is connected by a flexible cable 30, and the connector substrate 16 vertically attached to the inside of the operation panel 9 and the connection substrate 12 are connected by a flexible cable 31.

According to the substrate holding device 9 constructed and assembled as described above, as shown in FIGS. 1A and 1B, the pair of positioning plates 24 integrally formed with the holding metal fittings 17. Since the pair of locking grooves 26 are inserted into the upper end edges 13a of the pair of signal processing boards 13 from above and held, the assembly is easy.

In particular, since the taper 25 for inviting is formed at the lower end of each locking groove 26, even if the upper edge 13a is fluttered to the left or right, the taper 25 causes the upper edge 13a to move within the locking groove 26. Can be called accurately and easily, and the workability of assembly can be improved.

The upper edges 13a of the pair of signal processing boards 13 are locked by the pair of locking grooves 26 of the pair of positioning plates 24 which are formed integrally with the holding metal fitting 17 and have a sufficient strength. The pair of signal processing boards 13 can be stably and firmly held.

Further, according to this substrate holding device 9, FIG.
(A) and (B), a cap-shaped heat conductive elastic member 18 having an open bottom surface is fitted into the upper end 15b of the rectangular parallelepiped voltage converter 15 to convert the voltage. The heat conductive elastic member 18 is brought into close contact with the top surface 15c and the outer peripheral surface of the container 15.

When attaching the holding metal fitting 17,
A total of three positioning plates 24 and 27, which are the positioning members of the voltage converter 15, are guided by the chamfered slopes 18a formed at the corners of the upper end of the heat conductive elastic member 18, and are press-fitted against the left and right sides against elasticity. To do.

The front and rear ends 17a of the holding metal fitting 17 are
17b to the upper end of the front panel 2c and the operation panel 2d.
When the screws 23 are screwed together, the heat-conducting elastic member 18 is pressed and fixed by the holding metal fitting 17 from above with a constant force.

Therefore, the heat-conducting elastic member 18 can be pressed and fixed by the holding metal fittings 17 from above and from the left and right sides, and the holding metal fitting 17 and the heat-conducting elastic member 18 can be fixed.
Adhesion with and thermal conductive elastic member 18 and voltage converter 15
The degree of adhesion with can be increased. Therefore, the cap-shaped heat conductive elastic member 18 is attached to the upper end 15 of the voltage converter 15.
Since the top surface 15c and the outer peripheral surface 15d of b can be brought into close contact with each other over a wide area, the contact area of the holding metal fitting 17 with respect to the voltage converter 15 can be made large, and the heat generated from the voltage converter 15 can be secured. The heat dissipation efficiency of the voltage converter 15 can be improved by efficiently releasing the heat to the holding metal fitting 17.

As a result, it is possible to prevent the temperature inside the camera body 2 from rising and to prevent the electronic parts arranged inside the camera body 2 from being damaged by heat.

Moreover, the voltage converter 1 is held by the holding metal fitting 17.
Since the upper end 15a of the elastic member 5 is elastically held via the heat conductive elastic member 18, the heat conductive elastic member 18 can absorb vibration or shock from the outside to the voltage converter 15. Therefore, the voltage converter 15 can be stably held,
It is possible to prevent damage to the voltage converter 15 due to external vibration or shock.

Next, (A) of FIG. 1 and (A) of FIG.
The switch device 33 and the connector attached to the operation panel 2d will be described with reference to FIG.

First, VIDEO OUT and DC IN are provided at positions extending from the substantially central portion to the lower end side of the connector board 16 arranged vertically and in parallel with the inside of the operation panel 2d.
/ REMOTE, GEN LOCK, RGB / SYN
A total of six connectors 34, such as BNC connectors such as C, CCU, and LENS, are soldered. The connectors 34 penetrate the operation panel 2d and project rearward, and are fastened and fixed to the operation panel 9 by nuts. Therefore, the range extending from the substantially central portion of the connector board 16 to the lower end side is held on the operation panel 2 d via these connectors 34.

The switch device 33 is arranged at a position extending from the substantially central portion on the upper end side of the operation panel 2d to one side portion. Then, the switch device 33 has a gain (GE
N), shutter speed, white balance, MENU button for setting other modes, FUNCTION
N button UP DOWN, DATA button UPDO
It is composed of a total of six operation buttons 35 such as WN and DISPLAY buttons, and a total of six tact switches 36 corresponding to these.

Then, as shown in FIG. 2C, the six operation buttons 35 are elastic multiple operation type integrally formed in two rows in the upper and lower directions on a connecting sheet 37 made of an elastic member such as rubber. It is composed of a button 38.

Then, the six tact switches 36 are soldered in the upper and lower rows of the connector board 16 on the surface (rear surface side) on the side of the operation panel 2d to form the operation panels 2d and 6b.
Multiple operation buttons 38 between two tact switches 36
Is sandwiched between. At this time, the rear end sides of the six operation buttons 35 are inserted into the six button mounting holes 29 formed in the operation panel 2d from the inner side to project rearward, and the front end sides of these operation buttons 35 are connected to the tact switches 36, respectively. To be attached to.

A positioning plate 40, which is a vertical bent piece integrally formed by bending, is provided on the lower surface of the rear end of the holding metal fitting 17, and the upper end side of the connector board 16 is located at the substantially central portion of the switch device 33. The positioning plate 40 is shown in FIG.
In (B), the contact is made from the direction of the arrow.

The switch device 33 configured as described above
2 pushes the rear end of each operation button 35 from behind the operation panel 2d with a fingertip in the direction of the arrow shown in FIG. 2B, and presses each tact switch 36 at the front end of each operation button 35 to turn it ON.
Then, when the fingertip is released from each operation button 35, the switch operation is performed so as to turn off each tact switch 36.

At this time, the MENU button is used to display gain, shutter speed, white balance and other modes on the video screen, and the UP and DOWN buttons of the FUNCTION button are used to perform up and down operations of the displayed mode. , Set the specified mode. And UP button and DOWN of DATA button
Up and down the setting conditions of the mode set with the button. The DISPLAY button displays only the mode set on the video screen.

The pressing force when each operation button 35 is pressed in the direction of the arrow in FIG. 2B with the fingertip can be received by the positioning plate 40 of the holding metal fitting 17,
It is possible to prevent the connector board 16 from being bent and damaged in the direction of the arrow.

Since the multiple-type operation button 38 is integrally formed by an elastic member such as a comb, even if the multiple-type operation button 38 is roughly handled or another object collides with it, the impact at that time is elastic. In this way, the tact switch 36 and the connector board 16 are not damaged.

Since the entire operation panel 2d is formed flat and there is no need to provide a switch guard surrounding the outer periphery of the operation panel 2d, it is easy to directly press each operation button 35 with a fingertip and the operability of the switch is good.

The combination of the multiple operation button 38 integrally formed by the elastic member and the plurality of tact switches 36 provides a good switch operation feeling.

The switch device 33 including the multiple operation buttons 38 and the plurality of tact switches 36 does not take up space and can be easily installed in a narrow space between the operation panel 2d and the connector board 16, so that the camera body 2 can be easily installed. It is possible to promote downsizing and reduction of the number of parts.

The multiple-type operation button 38 is easily fitted between the operation panel 2d and the plurality of tact switches 36 by fitting the plurality of operation buttons 35 into the plurality of button mounting holes 39 of the operation panel 2d from the inside. It is possible to easily assemble the multiple-type operation button 38.

The embodiment of the present invention has been described above.
The present invention is not limited to the above embodiments, and various modifications can be made based on the technical idea of the present invention.

[0045]

The substrate holding device of the present invention constructed as described above has the following effects.

The heat conductive elastic member is fitted to the upper end of the voltage converter, and the holding metal fitting presses the heat conductive elastic member from above to hold the heat conductive elastic member. Since it is possible to increase the degree of mutual adhesion of the elastic members, it is possible to increase the contact area of the holding metal fitting with respect to the voltage converter, and efficiently dissipate the heat of the voltage converter to the holding metal fitting. The heat dissipation efficiency of the voltage converter can be improved. Therefore, it is possible to prevent an increase in temperature inside the substrate holding device, prevent damage to electronic components due to the temperature increase, and improve reliability.

Since the heat conductive elastic member is interposed between the voltage converter and the holding metal fitting so that external vibration or shock to the voltage converter can be absorbed by the heat conductive elastic member, the voltage converter Can be stably held. Therefore, it is possible to prevent damage to the voltage converter due to external vibrations and shocks, and it is possible to prevent the breakdown of the video camera and the like with high security.

[Brief description of drawings]

1A is a side view of a substrate holding device according to an embodiment of the present invention taken along the line AA of FIG. 3, and FIG. 1B is a side view of FIG. FIG. 4 is a side view taken along the line BB of FIG.

2A is a rear view of an operation panel according to an embodiment of the present invention, FIG. 2B is a side view of FIG. 2A, and FIG. It is a perspective view of a multiple operation button.

FIG. 3 is a side view of a camera body according to an exemplary embodiment of the present invention with a case cover body removed.

FIG. 4 is a plan view of FIG.

FIG. 5 is a perspective view of a video camera according to an exemplary embodiment of the present invention.

[Explanation of reference numerals] 2a Case body 9 Substrate holding device 12 Connection substrate 13 Signal processing substrate 15 Voltage converter 17 Holding metal fitting 18 Thermally conductive elastic member

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[Procedure amendment]

[Submission date] December 22, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

Substrate holding device

[Claims]

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a substrate holding device incorporated in an electronic device such as a video camera, and more particularly to a device for connecting a plurality of signal processing substrates and a voltage converter on a connection substrate.

[0002]

2. Description of the Related Art Conventionally, an integrated video camera in which a CCD head and its system control unit are built in a camera body is disclosed in, for example, a prior application (Japanese Patent Application No. 3-308187) filed by the applicant of the present invention. Substrate holding devices as seen have been proposed.

[0003] In the past, the upper end of the voltage converter was directly held by a holding metal fitting made of sheet metal to hold the voltage converter and radiate heat.

[0004]

However, since the holding metal fitting made of sheet metal has no spring property, it is difficult to stably hold the voltage converter, and the adhesion of the holding metal fitting to the voltage converter is poor. There is a problem that the heat dissipation efficiency of the voltage converter is poor because the contact area of is insufficient.

The present invention has been made in order to solve the above problems, and an object of the present invention is to provide a substrate holding device capable of stably holding the voltage converter and improving the heat radiation efficiency at the same time. I am trying.

[0006]

SUMMARY OF THE INVENTION To achieve the above object, a substrate holding device of the present invention comprises a connection substrate horizontally arranged at the bottom of a case body and vertically connected on the connection substrate. A plurality of signal processing boards and voltage converters, holding metal fittings for holding the plurality of signal processing boards and the voltage converters from above, and fitted to the upper end of the voltage converters,
The heat-conducting elastic member is pressed from above by the holding metal fitting.

[0007]

In the substrate holding device of the present invention constructed as described above, the heat conductive elastic member is fitted to the upper end of the voltage converter, and the heat conductive elastic member is held by pressing the heat conductive elastic member from above with the holding metal fitting. As a result, the degree of mutual adhesion of the heat conductive elastic member to the voltage converter and the holding metal fitting can be increased. In addition, vibration and impact on the voltage converter can be absorbed by the heat conductive elastic member.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a video camera to which the present invention is applied will be described below with reference to the drawings.

First, as shown in FIG. 8 , in this video camera 1, a lens 3 is attached to a camera body 2.
The camera body 2 includes a case body 2a formed by aluminum die casting, a U-shaped case lid body 2b screwed to the upper portion of the case body 2a by a total of four screws 4, and the case body 2a and the case body 2a. A front panel 2c and an operation panel 2d, which are screwed to the front and rear ends of the case lid 2b by four screws 5, respectively, form a rectangular parallelepiped sealed casing. The lens 3 is attached to the front surface of the front panel 2c by the lens mount adapter 6. The video camera 1 is configured as an integrated video camera for high resolution, and the video camera 1 has three R, G, and B (described later) inside the camera body 2.
A three-plate type CCD head having one CCD substrate and its system control unit are incorporated.

Next, the substrate holding device 9 incorporated in the camera body 2 will be described with reference to FIGS . 1, 2, 6 and 7 . First, a 3-plate type CCD head 11 having three CCD substrates for R, G, and B is attached inside the front panel 2c in the case body 2a, and the substrate holding device 9 that constitutes the system control unit is a CCD. It is arranged between the head 11 and the operation panel 2d.

The board holding device 9 includes a horizontal connecting board 12 called a mother board and two small signal processing boards 13 inside which are parallel to and perpendicular to the longitudinal direction (front-back direction) of the case body 2a. And two large signal processing boards 14 on the outer side, a voltage converter 15 which is parallel to and perpendicular to these, a connector board 16 which is perpendicular to the longitudinal direction of the case body 2a, and pressed by sheet metal. It is configured by a horizontal holding metal member 17, a cap-shaped heat conductive elastic member 18 made of rubber or the like having high heat conductivity, and the like.

Next, the order of assembling the substrate holding device 9 will be described together with the configuration.

First, the lower end 15a of the voltage converter 15, which is a heating element, is vertically fixed onto the connection board 12 by soldering, and the four corners of the connection board 12 are horizontally fixed to the bottom of the case body 2a by screws 20. Screw on.

Then, the signal processing boards 13 and 14 are mounted on the connection board 12 to the board-to-board connector 21,
The vertical connection is made by inserting 22 from above.

Then, a cap-shaped heat conductive elastic member 18 is fitted around the upper end 15b of the voltage converter 15.

Then, the holding metal fitting 17 is horizontally inserted on the heat conductive elastic member 18 between the two outer signal processing boards 14, and the front and rear ends 17a and 17b of the holding metal fitting 17 are connected to the front panel 2c and the operation. A total of four screws 23 are screwed to the upper end of the panel 2d, and the front panel 2c and the operation panel 2d are firmly connected by the holding metal fittings 17. At this time, the holding metal fitting 17 presses the heat conductive elastic member 18 from above with a constant pressing force.

At this time, a pair of positioning plates 24, which are bent pieces perpendicular to the longitudinal direction of the case main body 2a, which are integrally formed by bending at the two locations in the front-rear direction of the central portion on the lower surface of the holding metal fitting 17, are formed. A pair of locking grooves 26 having a taper 25 for invoking are formed at the lower ends of the two, and the upper edges 13a of the two inner signal processing boards 13 are invoked by the taper 25.
The locking groove 26 is inserted into and locked from above.

Further, a positioning plate 27, which is a bent piece parallel to and perpendicular to the longitudinal direction of the case main body 2a, which is integrally formed by bending on one side of the central portion on the lower surface of the holding metal fitting 17, and the above-mentioned pair of The heat conductive elastic member 18 is sandwiched and held between the positioning plate 24 and the left and right sides against the elasticity.

Then, the two upper ends of the two outer signal processing boards 14 are laterally screwed to the two left and right sides of the holding metal fitting 17 by two screws 28, respectively.
Complete the assembly.

The connection substrate 12 and the CCD head 11
The head substrate 29 is connected by a flexible cable 30, and the connector substrate 16 vertically attached to the inside of the operation panel 9 and the connection substrate 12 are connected by a flexible cable 31.

According to the substrate holding device 9 constructed and assembled as described above, as shown in FIGS. 1 and 2 , each pair of positioning plates 24 formed integrally with the holding metal fitting 17 is provided. Since the locking groove 26 is inserted and held in the upper edges 13a of the pair of signal processing boards 13 from above, the assembly is easy.

In particular, since the taper 25 for inviting is formed at the lower end of each locking groove 26, even if the upper edge 13a is fluttered to the left or right, the taper 25 causes the upper edge 13a to move within the locking groove 26. Can be called accurately and easily, and the workability of assembly can be improved.

The upper edges 13a of the pair of signal processing boards 13 are locked by the pair of locking grooves 26 of the pair of positioning plates 24 which are formed integrally with the holding metal fitting 17 and have a sufficient strength. The pair of signal processing boards 13 can be stably and firmly held.

Further, according to the substrate holding device 9, FIG.
As shown in FIG. 1 and FIG. 2 , a cap-shaped thermally conductive elastic member 18 having an open lower surface is fitted into the upper end 15b of the rectangular parallelepiped voltage converter 15, and the voltage converter 15 The heat conductive elastic member 18 is brought into close contact with the top surface 15c and the outer peripheral surface.

When attaching the holding metal fitting 17,
A total of three positioning plates 24 and 27, which are the positioning members of the voltage converter 15, are guided by the chamfered slopes 18a formed at the corners of the upper end of the heat conductive elastic member 18, and are press-fitted against the left and right sides against elasticity. To do.

The front and rear ends 17a of the holding metal fitting 17 are
17b to the upper end of the front panel 2c and the operation panel 2d.
When the screws 23 are screwed together, the heat-conducting elastic member 18 is pressed and fixed by the holding metal fitting 17 from above with a constant force.

Therefore, the heat-conducting elastic member 18 can be pressed and fixed by the holding metal fittings 17 from above and from the left and right sides, and the holding metal fitting 17 and the heat-conducting elastic member 18 can be fixed.
Adhesion with and thermal conductive elastic member 18 and voltage converter 15
The degree of adhesion with can be increased. Therefore, the cap-shaped heat conductive elastic member 18 is attached to the upper end 15 of the voltage converter 15.
Since the top surface 15c and the outer peripheral surface 15d of b can be brought into close contact with each other over a wide area, the contact area of the holding metal fitting 17 with respect to the voltage converter 15 can be made large, and the heat generated from the voltage converter 15 can be secured. The heat dissipation efficiency of the voltage converter 15 can be improved by efficiently releasing the heat to the holding metal fitting 17.

As a result, it is possible to prevent the temperature inside the camera body 2 from rising and to prevent the electronic parts arranged inside the camera body 2 from being damaged by heat.

Moreover, the voltage converter 1 is held by the holding metal fitting 17.
Since the upper end 15a of the elastic member 5 is elastically held via the heat conductive elastic member 18, the heat conductive elastic member 18 can absorb vibration or shock from the outside to the voltage converter 15. Therefore, the voltage converter 15 can be stably held,
It is possible to prevent damage to the voltage converter 15 due to external vibration or shock.

Next, the switch device 33 and the connector attached to the operation panel 2d will be described with reference to FIGS . 1 and 3 to 5 .

First, VIDEO OUT and DC IN are provided at positions extending from the substantially central portion to the lower end side of the connector board 16 arranged vertically and in parallel with the inside of the operation panel 2d.
/ REMOTE, GEN LOCK, RGB / SYN
A total of six connectors 34, such as BNC connectors such as C, CCU, and LENS, are soldered. The connectors 34 penetrate the operation panel 2d and project rearward, and are fastened and fixed to the operation panel 9 by nuts. Therefore, the range extending from the substantially central portion of the connector board 16 to the lower end side is held on the operation panel 2 d via these connectors 34.

The switch device 33 is arranged at a position extending from the substantially central portion on the upper end side of the operation panel 2d to one side portion. Then, the switch device 33 has a gain (GE
N), shutter speed, white balance, MENU button for setting other modes, FUNCTION
N button UP DOWN, DATA button UPDO
It is composed of a total of six operation buttons 35 such as WN and DISPLAY buttons, and a total of six tact switches 36 corresponding to these.

Then, as shown in FIG. 5 , the six operation buttons 35 are connected to each other by a connecting sheet 37 made of an elastic member such as rubber.
In addition, the multiple operation button 38 having elasticity is integrally formed in upper and lower two rows.

Then, the six tact switches 36 are soldered in the upper and lower rows of the connector board 16 on the surface (rear surface side) on the side of the operation panel 2d to form the operation panels 2d and 6b.
Multiple operation buttons 38 between two tact switches 36
Is sandwiched between. At this time, the rear end sides of the six operation buttons 35 are inserted into the six button mounting holes 29 formed in the operation panel 2d from the inner side to project rearward, and the front end sides of these operation buttons 35 are connected to the tact switches 36, respectively. To be attached to.

A positioning plate 40, which is a vertical bent piece integrally formed by bending, is provided on the lower surface of the rear end of the holding metal fitting 17, and the upper end side of the connector board 16 is located at the substantially central portion of the switch device 33. The positioning plate 40 is shown in FIG.
Are contacted in the direction of the arrow.

The switch device 33 configured as described above
Push the rear end of each operation button 35 from behind the operation panel 2d in the direction of the arrow shown in FIG.
At the front end of each of the tact switches 36, the tact switches 36 are pushed to be turned on, and when the fingertips are released from the operation buttons 35, the tact switches 36 are turned off.

At this time, the MENU button is used to display gain, shutter speed, white balance and other modes on the video screen, and the UP and DOWN buttons of the FUNCTION button are used to perform up and down operations of the displayed mode. , Set the specified mode. And UP button and DOWN of DATA button
Up and down the setting conditions of the mode set with the button. The DISPLAY button displays only the mode set on the video screen.

Since the positioning plate 40 of the holding member 17 can receive the pressing force when each operation button 35 is pressed in the arrow direction in FIG. 4 with the fingertip, the connector board 16 is bent in the arrow direction and damaged. Can be prevented.

Since the multiple-type operation button 38 is integrally formed by an elastic member such as a comb, even if the multiple-type operation button 38 is roughly handled or another object collides with it, the impact at that time is elastic. In this way, the tact switch 36 and the connector board 16 are not damaged.

Since the entire operation panel 2d is formed flat and there is no need to provide a switch guard surrounding the outer periphery of the operation panel 2d, it is easy to directly press each operation button 35 with a fingertip and the operability of the switch is good.

The combination of the multiple operation button 38 integrally formed by the elastic member and the plurality of tact switches 36 provides a good switch operation feeling.

The switch device 33 including the multiple operation buttons 38 and the plurality of tact switches 36 does not take up space and can be easily installed in a narrow space between the operation panel 2d and the connector board 16, so that the camera body 2 can be easily installed. It is possible to promote downsizing and reduction of the number of parts.

The multiple-type operation button 38 is easily fitted between the operation panel 2d and the plurality of tact switches 36 by fitting the plurality of operation buttons 35 into the plurality of button mounting holes 39 of the operation panel 2d from the inside. It is possible to easily assemble the multiple-type operation button 38.

The embodiment of the present invention has been described above.
The present invention is not limited to the above embodiments, and various modifications can be made based on the technical idea of the present invention.

[0045]

The substrate holding device of the present invention constructed as described above has the following effects.

The heat conductive elastic member is fitted to the upper end of the voltage converter, and the holding metal fitting presses the heat conductive elastic member from above to hold the heat conductive elastic member. Since it is possible to increase the degree of mutual adhesion of the elastic members, it is possible to increase the contact area of the holding metal fitting with respect to the voltage converter, and efficiently dissipate the heat of the voltage converter to the holding metal fitting. The heat dissipation efficiency of the voltage converter can be improved. Therefore, it is possible to prevent an increase in temperature inside the substrate holding device, prevent damage to electronic components due to the temperature increase, and improve reliability.

Since the heat conductive elastic member is interposed between the voltage converter and the holding metal fitting so that external vibration or shock to the voltage converter can be absorbed by the heat conductive elastic member, the voltage converter Can be stably held. Therefore, it is possible to prevent damage to the voltage converter due to external vibrations and shocks, and it is possible to prevent the breakdown of the video camera and the like with high security.

[Brief description of drawings]

FIG. 1 is a side view of the substrate holding device according to the embodiment of the present invention taken along the line AA of FIG.

FIG. 2 is a side view of the substrate holding device according to the embodiment of the present invention taken along the line BB of FIG.

FIG. 3 is a rear view of an operation panel according to an embodiment of the present invention.

FIG. 4 is a side view of an operation panel according to an embodiment of the present invention.

FIG. 5 is a perspective view of a multiple operation button on an operation panel according to an embodiment of the present invention.

FIG. 6 is a side view of a camera body according to an exemplary embodiment of the present invention with a case cover body removed.

FIG. 7 is a plan view of the camera body according to the exemplary embodiment of the present invention with a case cover removed.

FIG. 8 is a perspective view of a video camera according to an exemplary embodiment of the present invention.

[Explanation of reference numerals] 2a Case body 9 Board holding device 12 Connection board 13 Signal processing board 15 Voltage converter 17 Holding metal fitting 18 Thermal conductive elastic member

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[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

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Claims (1)

[Claims] 1. A connection board horizontally arranged on the bottom of a case main body, a plurality of signal processing boards and a voltage converter connected vertically on the connection board, and a plurality of the signal processing boards. A substrate holding device comprising: a holding metal fitting for holding the voltage converter from above; and a heat conductive elastic member fitted to an upper end of the voltage converter and pressed from above by the holding metal fitting.