JP2017120289A - Camera housing and universal head photographing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a camera housing capable of reducing the decrease of a cooling effect, even when the camera housing is tilted.SOLUTION: The camera housing is the camera housing which includes a housing which stores an imaging apparatus and a cover which covers the housing so as to have a gap between the cover and the housing in at least a part thereof, and is fixed to a universal head device having a tilt function. A ventilation part which ventilates between the gap and the outside of the cover is provided in the upper surface of the cover. The ventilation part is formed in a plane perpendicular to the tilt shaft of the universal head device in the cover and includes an extension part which forms the plane extended upward from the upper surface of the cover on at least one side across the ventilation part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a camera housing that houses a camera device and the like, and more particularly to a camera housing having a sunshade and a pan / tilt head photographing device having the same.

  About the camera housing of the pan head device that is installed outdoors and photographs the surroundings, the inside and the surface become extremely hot due to heat generated by the internal devices and direct sunlight. Therefore, a technique for releasing heat generated in the camera housing to the outside air has been proposed. For example, conventionally, in a cylindrical camera housing, an air cooling promotion portion is installed on the sunshade, and heat exchange with the outside air is promoted by solar heat, and the heat generated in the camera housing is released to the outside air.

JP 2013-054100 A

  However, in the conventional technique disclosed in the above-mentioned patent document, the camera head itself tilts the flow path around the housing to increase the wall resistance and reduce the cooling effect. Is not considered.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a camera housing and a pan / tilt head photographing apparatus having the camera housing capable of reducing a decrease in cooling effect even when the camera housing is tilted.

  In order to achieve the above object, a camera housing of the present invention includes a housing that houses an imaging device, and a cover that covers the housing so as to have a gap between the housing and at least a part thereof. A camera housing fixed to a pan head device having a tilt function, comprising: a ventilation portion for ventilating the gap and the outside of the cover on an upper surface of the cover; and the ventilation portion on the cover. An extension portion is formed in a plane perpendicular to the tilt axis of the apparatus, and has an extension portion forming a plane extending upward from the upper surface of the cover on at least one side across the ventilation portion. .

  According to the present invention, even when the camera housing is tilted, it is possible to provide a camera housing that can reduce the decrease in the cooling effect. Therefore, the camera housing that can reduce the decrease in the cooling effect. And a pan / tilt head photographing apparatus having the same.

The schematic block diagram which showed the cross section of the pan head imaging device 1 based on the Example of this invention. A view of the camera housing 2 of the first embodiment. A view visualizing air flow of Example 1 A view of the camera housing 2 showing the first modification of the first embodiment A view of the camera housing 2 showing a second modification of the first embodiment A view of a camera housing 2 showing a third modification of the first embodiment A view of the camera housing 2 of the second embodiment. The figure seen from the side of the camera housing 2 of Example 2 Detailed view of the camera housing 2 of the second embodiment The figure seen from the side at the time of the wind of the camera housing 2 of Example 2 blowing The figure seen from the side of the camera housing 2 of Example 3

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  Hereinafter, referring to FIGS. 1 to 5, a camera housing capable of reducing a decrease in cooling effect even when the pan / tilt head photographing apparatus having a tilt function tilts according to the first embodiment of the present invention. And a pan / tilt head photographing apparatus having the same will be described.

  FIG. 1 is a schematic configuration diagram of a pan / tilt head photographing device 1 according to an embodiment of the present invention as viewed from the side. The pan / tilt head photographing device 1 includes a camera housing (housing) 2, a head 3, and a base 4, and includes a tilting drive unit that performs tilting by rotating the camera housing 2 with respect to the head 3. A panning drive unit that performs panning by rotating with respect to the base 4 is provided. In the camera housing 2, the imaging device 5 is fixed and accommodated on the camera base 7, and the camera base 7 is fixed to the bottom of the camera housing 2. The imaging device 5 photographs the surroundings through a protective glass 6 arranged on the front surface of the camera housing 2.

  The imaging device 5 is fixed to the camera base 7 so that the optical axis of the imaging device 5 fixed to the camera base 7 is located in a plane perpendicular to the tilt axis of the tilting drive unit. Further, the camera base 7 is configured such that the imaging device 5 is fixed to the camera housing 2 as described above. Note that the present invention is not limited to the fact that the optical axis of the imaging device 5 is strictly positioned in a plane perpendicular to the tilt axis of the tilting drive unit. If the angle formed by the optical axis of the imaging device 5 and the plane perpendicular to the tilt axis of the tilting drive unit is within 10 degrees, more preferably within 5 degrees, the effects of the present invention can be fully enjoyed. Such a range is described as the optical axis of the imaging device 5 being in a plane perpendicular to the tilt axis of the tilting drive unit.

  FIG. 2 is a diagram (A view) viewed from the front of the pan / tilt head photographing device 1. As shown in FIG. 2, the camera housing 2 includes a housing casing 201, a sunshade (cover member) 202, a plate 203, and a connection portion 204. The sunshade 202 is configured to cover the camera housing 2 so as to have a gap between the sunshade 202 and the camera housing 2 at least in part. On the upper surface of the sunshade, there is a slit 205 (ventilation part) for ventilating the gap and the outside of the sunshade 202. The place where the slit 205 (ventilation portion) is formed is preferably configured to include the uppermost position in the vertical direction of the sunshade 202, but is not necessarily limited to this configuration. The plate 203 (extension portion) is configured to extend upward at an end surface of the slit 205 parallel to the optical axis provided on the upper surface of the sunshade and perpendicular to the upper surface of the sunshade. Further, the plate 203 (extension portion) is configured to project so as to form an opposing surface between the two plates 203 arranged so as to sandwich the slit from both sides. At this time, the slit 205 may be a discontinuous hole row (opening row) parallel to the optical axis. The plate 203 may be configured integrally with the sunshade 202, or may be made separately and fixed to the sunshade 202 with a screw (not shown) or the like. The sunshade lower portion 206 is open to the outside air. The housing casing 201 and the sunshade 202 are connected by a connecting portion 204. The connection part 204 is preferably formed of a material having a low thermal conductivity, and the smaller the contact cross-sectional area between the housing casing 201 and the sunshade 202, the higher the cooling effect of the housing casing.

  In this configuration, when installed outdoors, the plate 203 is heated by sunlight and becomes high temperature. As a result, the air between the plates 203 is warmed, and an upward air flow is generated vertically upward in FIG. As the rising airflow is generated, the air pressure around the slit 205 is lowered, and the air flows from the sunshade lower portion 206 between the housing casing 201 and the sunshade 202. As described above, an air flow path is formed from the sunshade lower portion 206 to the slit 205 upper portion. As a result, the housing casing 201 is cooled by performing heat exchange in the process in which the inflowing air passes in the vicinity of the housing casing 201. FIG. 3 is a visualization of the flow path in a slight wind speed atmosphere in the state of FIG. Suppose that a breeze is blowing in the direction of arrow 301. Reference numeral 302 denotes an air flow path that enters the slit. It can be seen that the air around the camera housing 2 passes through the flow path.

  The air between the plates 203 can be further warmed by manufacturing the plate 203 with a material having a higher emissivity than that of the sunshade 202, or by performing coating or surface treatment. Thereby, a large ascending air current can be generated between the plates 203, and the cooling efficiency of the housing casing 201 can be increased. Moreover, the cooling efficiency of the housing housing 201 can be further enhanced by fixing the plate 203 separately from the sunshade 202 and insulating between the two.

  The connecting portion 204 that connects the housing case 201 and the sunshade 202 may be made of a material having low thermal conductivity or a surface-treated material. Thereby, the sunshade 202 which becomes high temperature and the housing housing | casing 201 which is cooling object can be thermally interrupted, and the cooling effect can be heightened. Further, the connecting portion 204 may have a streamline shape that does not hinder the flow of air from the sunshade lower portion 206 toward the slit 205 upper portion.

  Next, a first modification of the first embodiment will be described. FIG. 4 shows a view A of the first modification. Two slits 403 parallel to the optical axis are cut on the upper surface of the sunshade 401. The sunshade 401 and the housing case 201 are connected by a connection portion 402. A plate 404 is provided at each end of the two slits 403. With the above configuration, the flow path shown in claim 1 can be formed in each slit 403 to cool the housing casing 201.

  Next, a second modification of the first embodiment will be described. FIG. 5 shows a view A of a second modification. A slit 503 parallel to the optical axis is cut on the upper surface of the sunshade 501 at the end of the upper surface of the sunshade 501. Further, the sunshade 501 is provided so as to incline upward toward the slit 503. The sunshade 501 and the housing case 201 are connected by a connection portion 502. The end of the slit 503 and the end of the upper surface of the sunshade 501 coincide with each other, and the sunshade 501 is extended in the vertical direction. A plate 504 is provided at the end of the slit 503 where the end of the upper surface of the sunshade 501 does not coincide. With the above configuration, the flow path shown in claim 1 can be formed, and the housing casing 201 can be cooled.

  The camera housing of the present invention has the above-described configuration, so that even if the camera housing is tilt-driven by the pan head device, the heated air in the gap between the sunshade and the housing housing is related to the tilting angle. Instead, it can flow out from the slits 205, 403, and 503, which are ventilation portions. That is, the layered flow path formed by the two plates 203, 404, and 504 (flow path that plays the role of the chimney of the chimney effect) is used for air that flows into the flow path from the slits 205, 403, and 503. Regardless of the tilt angle, a certain chimney effect can be obtained. This is because the air that has flowed into the layered flow path from the slits 205, 403, and 503, which are ventilation portions, can secure a flow path in the vertical direction regardless of the tilt angle. Therefore, a cooling effect that is not affected by the tilt angle can be obtained.

  Next, a third modification of the first embodiment will be described. FIG. 6 shows an A view of the third modification. The slit 205 parallel to the optical axis is formed on the upper surface of the sunshade 202 as in the first embodiment described with reference to FIG. The difference from the first embodiment is that the plate 203a is provided only from one end of the slit 205 in the third modification compared to the first embodiment in which the plates 203 are provided at both ends of the slit 205. is there. Unlike Example 1 and Modifications 1 and 2, which are installed so as to extend vertically upward, the plate 203a is provided so as to be inclined from the vertical direction so as to cover the slit 205. Also with the configuration of the third modification, the flow path shown in the first aspect can be formed in each slit 403 to cool the housing casing 201.

  Hereinafter, referring to FIGS. 7 to 10, it is possible to reduce the decrease in the cooling effect for the case housing tilted by the camera housing with improved wind speed resistance according to the second embodiment of the present invention. The pan / tilt head photographing apparatus will be described.

  FIG. 7 is a view as viewed from the side of the camera housing 2 showing the second embodiment, and FIG. As shown in FIG. 7, the camera housing 2 includes a housing case 201, a sunshade 601, a connection portion 602, a plate 603, an elastic body 605, a movable beam 606, and a hinge 607. The plate 603 is configured to face the end of a slit 604 provided on the upper surface of the sunshade 601 and parallel to the optical axis. The end of the slit 604 of the sun shade 601 and the end of the plate 603 are hingedly connected by one or more hinges 607. The movable beam 606 is hingedly connected to the opposing plate 603. With the above configuration, the opposing plates 603 can be smoothly rotated around the hinge 607 at the end of the slit 604 while being kept parallel. Both ends of the elastic body 605 are connected to the sunshade 601 and the plate 603 so as to be rotatable. For example, a tension spring is used for the elastic body 605, and a force for pulling the plate 603 in the directions of arrows 609 and 610 is acting. FIG. 7 shows a state in which forces are balanced via the movable beam 606. At this time, the elastic body uses a compression spring, and the force direction may be opposite to the arrow 609. From FIG. 8, the movable beam 606 has a shape that does not block the upper portion of the slit 604, and a plurality of movable beams 606 may be provided. Since the movable beam 606 can be rotated, the plate 603 is provided with a relief shape 701. FIG. 9 is an enlarged view of the vicinity of the movable beam 606 on the left side of FIG. Since the movable beam 606 can be rotated, the plate 603 is provided with a rotating shaft 801 as well as a relief shape 701, and is fixed by screws (not shown) or welding.

  The sunshade lower part 608 is open to the outside air. The housing casing 201 and the sunshade 601 are connected by a connection portion 602. The connecting portion 602 has a shape that does not hinder the flow of air from the sunshade lower portion 608 to the upper portion of the slit 604.

  With the above configuration, the same effect as that of the first embodiment can be exhibited when there is no wind. FIG. 10 shows a view A when the wind is strong. An arrow 901 indicates the wind direction, and the plate 603 is tilted to a point where the elastic force of the elastic body 605 and the force received by the wind are balanced (the angle between the plate 603 and the sunshade 601 is determined). The wind speed resistance is improved as compared with the first embodiment. As described above, even when the camera housing is tilted, it is possible to provide a camera housing that can reduce a decrease in cooling effect.

  Hereinafter, referring to FIG. 11, a cloud that can reduce a decrease in cooling effect even in a case housing tilted by a camera housing having a handle function according to a third embodiment of the present invention. The stand device will be described.

  FIG. 11 is a view seen from the side of the camera housing 2 showing the third embodiment. The configuration is almost the same as that of the first embodiment, and is different from the first embodiment in that the plate 203 is a plate 1003. A through hole 1001 is provided in the plate 1003. Each through hole 1001 is provided with an injury prevention rubber 1002 and serves as a handle for removing the housing.

  With the above configuration, it is possible to provide a camera housing that can improve workability with a small number of parts and can reduce a decrease in cooling effect even when the camera housing is tilted.

  As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these embodiment, A various deformation | transformation and change are possible within the range of the summary.

1: pan head device 2: camera housing 5: imaging device 201: housing housing 202, 401, 501, 601: sunshade (cover member)
205, 403, 503, 604: Slit

Claims (8)

A camera housing that includes a housing that houses an imaging device and a cover that covers the housing so as to have a gap between the housing and at least a part thereof, and is fixed to a pan head device having a tilt function. There,
The upper surface of the cover includes a ventilation portion that ventilates the gap and the outside of the cover, and the ventilation portion is formed in a plane perpendicular to the tilt axis of the pan head device on the cover,
On at least one side sandwiching the ventilation portion, it has an extension portion that forms a plane extending upward from the upper surface of the cover.
A camera housing characterized by that.   The camera housing according to claim 1, wherein the extension portion forms opposing surfaces extending vertically upward from the upper surface of the cover on both sides of the ventilation portion.   3. The camera housing according to claim 1, wherein the ventilation portion is a slit formed in an upper direction of the cover in the perpendicular direction.   3. The camera housing according to claim 1, wherein the ventilation portion is a plurality of openings formed in an upper part of the cover and arranged in the vertical direction.   The camera housing according to claim 2, wherein the extension part is hinged so as to be rotatable with respect to the cover, and an elastic body is provided between the extension part and the cover.   The camera housing according to claim 1, wherein the extension portion is made of a material having a higher emissivity than the cover.   The camera housing according to claim 1, wherein the extension has a handle hole. A camera housing according to any one of claims 1 to 7,
An imaging device housed in the camera housing;
A drive unit for tilting the camera housing;
Having
A pan / tilt head photographing device.

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