JP2000152048A - Video camera - Google Patents

Abstract

(57) [Problem] To provide a video camera having a heat dissipation structure that has no problem in appearance and is strong against external force applied to a camera body. SOLUTION: An apparatus has a main body 100 and a member 102 movable between a position where the main body is stored and a position where the main body is used, and an opening 110 is provided at a position facing the main body where the member 102 is stored. At least one is provided to cover the opening when the member is stored and to dissipate heat inside the camera through the opening when the member is opened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera having a built-in image sensor, and more particularly to a heat radiating structure.

[0002]

2. Description of the Related Art Conventionally, a video camera is a typical example of a camera unit comprising a photographic lens and an image pickup device and an image (video) recording unit such as a video tape or a flash memory. . It is to be noted that an image pickup device generally includes a CCD (charge transfer device).

[0003] In such a video camera, there is a problem that electronic components including the CCD may fail and deteriorate in performance due to a rise in the temperature inside the camera body when the camera is used. Therefore, in order to prevent a problem from occurring, a structure is provided in which a vent hole for heat radiation is provided in the camera body, or heat is diffused from a wall plate of the camera body.

As a structure for diffusing heat from a wall plate, for example, there is a heat dissipation structure disclosed in Japanese Patent Application Laid-Open No. 7-264450. In brief, a heat conductive rubber is interposed between each electronic component on a circuit board provided to face the upper and lower wall plates and the left and right wall plates of the camera body and each wall plate. That is, the heat generated from the electronic components on each circuit board is transmitted to each wall plate via the heat conductive rubber, and diffused from each of the wall plates into the atmosphere outside the camera body.

[0005]

However, in the above-mentioned conventional example, when the ventilation holes are provided, there is a problem that dust or the like enters the camera body and the electronic components are damaged, or the appearance is conspicuous. .

On the other hand, in the case of JP-A-7-264450,
In order to improve the heat transfer efficiency, it is necessary to increase the degree of adhesion between each wall board and each electronic component and the heat conductive rubber, so that only the electronic components and the circuit board are constantly stressed through the heat conductive rubber. The external force applied to each wall plate, such as impact or drop, is also applied to electronic components and circuit boards as they are, which may cause electrical problems such as solder peeling of electronic components and cutting of board patterns. There is a problem.

Therefore, the present invention has no problem in appearance,
It is an object of the present invention to provide a video camera having a low-cost and effective heat dissipation structure that is resistant to external force applied to a camera body.

[0008]

According to a first aspect of the present invention, there is provided an apparatus for moving a main body between a position where the main body and the main body are housed and a position where the main body is used. A video camera having a possible member, wherein at least one opening is provided at a position facing the main body in which the member is stored.

According to this structure, the opening can be blindfolded by the normally moving member, and the heat inside the camera body can be dissipated through the opening each time the moving member is opened and closed. .

According to a second aspect of the present invention, in the video camera according to the first aspect, the opening is provided with a sound generated from a built-in speaker. The video camera is provided separately from an opening for taking the camera out of the main body.

According to this structure, the heat radiation effect can be enhanced by providing the heat radiation opening not near the speaker inside the video camera but near the arrangement position of the circuit board, the CCD and the like.

According to another specific configuration for realizing the object of the invention according to the present application, as described in claim 3, in the video camera according to claim 1, the member is a display means. You have a video camera.

According to this structure, the opening is provided at a position on the main body side for housing the liquid crystal panel unit for rotating and opening the object to be opened or displaying the photographed image at the time of photographing. When the panel unit is opened during photographing, heat can be radiated through the opening.

According to another specific configuration for realizing the object of the invention according to the present application, in the video camera according to the first aspect, the member is a protection means. And the video camera.

According to this structure, like the barrier cover of the photographing lens, the opening can be covered by the protection means during non-photographing, and the protection means can be slid during photography to expose the opening and release heat.

According to another specific structure for realizing the object of the invention according to the present application, as described in claim 5, in the video camera according to claim 1, the member includes a second display means. The video camera is characterized by being a view finder capable of tilt operation.

According to this configuration, the opening is concealed by the eyepiece of the finder in a normal position, and when used, the eyepiece is lifted and moved in the tilt direction to expose the opening and dissipate heat. .

According to another specific configuration for realizing the object of the invention according to the present application, the opening is formed by a number of small holes, and is provided with air-permeable dust blocking inside. A video camera characterized by sticking members.

According to this configuration, the heat can be efficiently and uniformly dissipated by the small holes, and the intrusion of dust from the opening can be prevented by the blocking member such as the malt plane.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) Next, a first embodiment of the present invention will be described with reference to the drawings.

FIGS. 1 to 3 are diagrams according to a first embodiment of the present invention.

FIG. 1 is a perspective view of a video camera according to a first embodiment of the present invention.

FIG. 2 is a perspective view when the display device of the video camera shown in FIG. 1 is opened.

FIG. 3 is a perspective view showing the display device of the video camera shown in FIG. 1 in a housed state.

In FIG. 1, reference numeral 100 denotes a video camera, 1
01 is a viewfinder, 102 is a liquid crystal panel unit which is an external display means, 103 is a liquid crystal panel unit 10
A hinge u for opening and closing the camera 2 is a battery as a power supply of the video camera 100, and 105 is a voice output from a speaker (not shown) built in the main body of the video camera 100. It is an opening to take out. In addition to these, shooting buttons and various switches for zooming and editing are required,
It is omitted here to avoid complicating the drawing.

In FIG. 2, reference numeral 110 denotes an opening for heat radiation according to the present invention, which is arranged in the concave portion 100a for accommodating the liquid crystal panel unit 102.

Next, the operation will be described.

The opening 110 shown in FIG. 2 has a shape in which a group of small holes are arranged in a rectangular shape. 100 is prevented from entering the main body.

As shown in FIG. 3, the liquid crystal panel unit 102 can be accommodated by a well-known mechanism of the hinge u103 even when the observation surface 102a of the liquid crystal panel unit 102 faces outward. Thus, the opening 110 for heat dissipation can be blinded by the liquid crystal panel unit 102 in both the storage position when not in use and the storage position when in use.

As described above, according to the first embodiment,
Since the opening for heat dissipation can be provided, the effect that the heat generated inside the video camera can be radiated outside the camera can be obtained.

Further, since the opening for heat dissipation can be hidden during storage or use, an effect of improving the quality of the appearance can be obtained as compared with the case where the opening 110 is always visible.

Further, air flows in and out of the video camera 100 every time the liquid crystal panel unit 102 is opened and closed, so that the effect of improving the heat radiation effect can be obtained.

Further, even if an external force is applied to the camera body, the force is not applied to the circuit board and the CCD inside the camera body. Troubles can be eliminated.

The position, shape and number of the heat-dissipating openings 110 (a group of small holes such as a circle, a rectangle, a rhombus, etc., not a square, or a plurality of groups of rectangular holes are arranged in parallel) are as follows.
The present invention is not limited to the embodiment, and it goes without saying that any arrangement that is hidden by the liquid crystal panel unit 102 may be arbitrarily determined.

The opening 105 for the speaker is a voice opening in the first embodiment, and does not contribute much to heat radiation due to the positional relationship. When the present embodiment is applied to a camera that does not have a speaker, the opening 105 for the speaker is used.
It is needless to say that the same heat radiation effect can be obtained if the heat radiation opening 110 is provided at a position that is hidden by the liquid crystal panel unit 102 even without the above. (Second Embodiment) Next, a second embodiment of the present invention will be described with reference to the drawings.

FIG. 4 is a perspective view of a video camera according to a second embodiment of the present invention.

FIG. 5 is a perspective view of the video camera shown in FIG. 4 when the viewfinder is used.

In FIG. 4, reference numeral 200 denotes a video camera, and 201 denotes a viewfinder. Other Figure 1
The same components as those described above are denoted by the same reference numerals, and redundant description will be omitted. In addition to these, a photographing button and various switches for zooming and editing are required, but are omitted here to avoid complication of the drawing.

In FIG. 5, reference numeral 210 denotes a heat-dissipating opening of the present embodiment in the form of a group of small holes, which is opened in a storage portion 200a for storing the viewfinder 201 at a normal position. Next, the operation will be described.

FIG. 5 shows a viewfinder 201 which is tilted by a known hinge mechanism (not shown) and which is displayed on a liquid crystal panel (not shown) in the viewfinder 201 during or during shooting. The state of the video camera 200 when observing is displayed. Normally, as shown in FIG. 4, the opening 210 is hidden by the viewfinder 201 and is not exposed. In addition, heat can be dissipated through the opening 210. Further, since a breathable light-shielding malt plane is adhered to the back side of the opening 210, that is, the inside of the video camera main body, dust enters the inside of the video camera 200 main body through the small hole of the opening 210. Has been prevented. In this way, at the storage position when not in use, the heat dissipation opening 210 is not covered by the viewfinder 201 and is conspicuous.

As described above, according to the second embodiment,
Since the heat radiation opening 210 can be provided, the heat generated inside the video camera 200 can be effectively radiated to the outside of the camera.

Further, when the viewfinder 201 is pushed down and stored, the heat dissipation opening 210 can be blindfolded, so that the appearance can be enhanced.

Further, since the air inside and outside the video camera 200 enters and exits each time the observation operation of the viewfinder 201 is performed, the heat radiation effect can be improved.

Further, even if an external force is applied to the camera body, the force is not applied to a circuit board, a CCD or the like in the body, so that an electric trouble such as breakage of the circuit board can be solved.

The position, shape, number, and the like of the heat-dissipating openings 210 are not limited to those taken up in the present embodiment, but may be determined arbitrarily as long as they are hidden by the viewfinder 201. Of course.

In the case of the video camera 200 shown in FIG. 5, the opening portion for heat dissipation 210 and the opening portion for speaker sound 105 are closer to each other than in the case of FIG. Although a heat radiation effect can be expected when the space is common, even when the present embodiment is applied to a camera having no speaker, the viewfinder 201 can be provided even without the speaker opening 105 in particular.
If there is a heat-dissipating opening 210 at a position that is blindfolded,
A similar effect is obtained. (Third Embodiment) Next, a third embodiment of the present invention will be described with reference to the drawings.

FIG. 6 is a plan view of a video camera according to a third embodiment of the present invention.

FIG. 7 is a plan view showing a state where the barrier shown in FIG. 6 is retracted.

In FIG. 6, reference numeral 300 denotes a video camera; 301, a lens barrel for photographing; 302, an opening having an opening provided in the main body 300; 303, when the video camera 300 is not in use; A barrier 304 moves to a position covering the opening body 302, and an operation lever 304 operates the barrier 303. In addition, the same components as those in FIG. 1 are denoted by the same reference numerals, and redundant description will be omitted.

In FIG. 7, reference numeral 310 denotes an opening having a small hole formed in two stages. The description of the other components identical to those in FIG. 6 is omitted.

Next, the operation will be described.

By operating the operation lever 304 for photographing, the barrier 303 is retracted from the opening 302.
Since the opening 310 for heat radiation is provided in the opening body 302 of the video camera 300, when the barrier 303 is retracted during shooting, it is exposed to the outside as shown in FIG.

The back side of the opening 310 (inside the camera)
, A breathable light-shielding malt plane is adhered to prevent dust from entering the main body of the video camera 300 through the opening 310.

Thus, when the video camera is not used, the heat radiation opening 310 can be covered by the barrier 303. Further, when the video camera 300 is used, heat generated in the main body of the video camera 300 can be dissipated into the outside air via the opening 310.

As described above, according to the third embodiment,
The heat generated inside the video camera 300 can be effectively radiated to the outside of the camera by the heat radiating opening 310.

In addition, since the opening for heat dissipation can be blinded during storage, the quality of the appearance can be improved as compared with the case where the opening is always exposed.

Further, even if an external force is applied to the camera body, the force is not applied to a circuit board, a CCD or the like in the camera body, so that an electric trouble such as breakage of the circuit board can be solved.

The position, shape, number, and the like of the heat radiation openings are not limited to the examples described here, and any arrangements that are hidden by barriers (for example, switch barriers other than lenses) can be used. Needless to say, it can be decided arbitrarily.

Although the present invention has been described with reference to a video camera as a representative example, other various types of cameras such as a single-lens reflex camera and a lens shutter camera as well as a digital camera having a built-in image sensor may be used. Can be applied to the heat dissipation structure of

In addition, the present invention is also applicable to portable electronic devices and the like.

[0061]

As described above, according to the present invention,
The video camera body, having members such as a liquid crystal panel unit, a viewfinder, and a shooting lens barrier that can be moved between a position where the video camera is stored and a position where the body is used,
An opening for heat dissipation is provided at a position facing the main body in which these movable members are stored, and the opening is closed when the members are stored, and when the members are moved and opened, the opening is exposed to expose the inside of the camera. Since the heat generation is dissipated, the heat generated inside the camera housing can be effectively radiated to the outside of the housing with a low-cost configuration without deteriorating the quality of the appearance.

[Brief description of the drawings]

FIG. 1 is a perspective view of a video camera according to a first embodiment of the present invention.

FIG. 2 is a perspective view when the display device of the video camera shown in FIG. 1 is opened.

FIG. 3 is a perspective view of the display device of the video camera shown in FIG. 1 being used in a housed state.

FIG. 4 is a perspective view of a video camera according to a second embodiment of the present invention.

5 is a perspective view of the video camera shown in FIG. 4 in a state in which a finder is used.

FIG. 6 is a plan view of a video camera according to a third embodiment of the present invention.

FIG. 7 is a plan view showing a state where the barrier shown in FIG. 6 is retracted.

[Explanation of symbols]

 100, 200, 300 Video camera 101, 201 Viewfinder 102 Liquid crystal panel unit 103 Hinge u 104 Battery 105 Sound opening 110, 210, 310 Opening 301 Lens barrel 302 Opening body 303 Barrier 304 Operation lever

Claims (6)

[Claims] 1. A main body and a member movable between a position where the main body is stored and a position where the main body is used, and at least one opening is provided at a position facing the main body where the member is stored. A video camera, comprising: 2. The video camera according to claim 1, wherein
A video camera, wherein the opening is provided separately from an opening for outputting sound generated from a built-in speaker to the outside of the main body. 3. The video camera according to claim 1, wherein
A video camera, wherein the member is a display unit. 4. The video camera according to claim 1, wherein
The said member is a protection means, The video camera characterized by the above-mentioned. 5. The video camera according to claim 1, wherein
A video camera, wherein the member is a viewfinder having a built-in second display means and capable of tilt operation. 6. The video camera according to claim 1, wherein
A video camera, wherein the opening is formed by a number of small holes, and a gas-permeable dust blocking member is attached to the inside.