JP3762616B2 - Enclosure device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a casing device such as an endoscope light source device, and more particularly to a casing device having at least one opening on a side wall of an exterior member.
[0002]
[Prior art]
Generally, an opening that opens to the outside is provided on a side wall (including a rear side wall) of a housing such as an endoscope light source device or a power supply device. A typical example of the opening is a ventilation duct (ventilation window) that allows cooling air to pass through in order to cool components such as lamps and electronic components incorporated in the housing.
[0003]
Usually, the ventilation duct forms a vent hole composed of a plurality of holes. Since this vent is normally open to the outside, various measures have been taken to prevent liquid from entering the casing vigorously from the vent even if liquid is applied from the top of the casing of the device. It was.
[0004]
For example, in the medical electrical apparatus disclosed in Japanese Utility Model Publication No. 63-198021, an oblique eaves is mounted as a separate part on the outer wall surface of the apparatus housing, positioned above the duct. . Moreover, in what was shown by Unexamined-Japanese-Patent No. 63-228119 and Japanese Utility Model Laid-Open No. 60-158801, the duct forming member is made of a molded product or the like, and the ventilation hole is opened obliquely upward. . Further, in order to obtain the same effect as that described in Japanese Utility Model Publication No. 56-42202 and Japanese Utility Model Application Publication No. 56-164015, a plate-like metal member which is a material of the housing side wall is directly bent. There was one in which the ventilation holes themselves were formed obliquely.
[0005]
On the other hand, miniaturization of medical devices is one of the essential issues, and it is possible to reduce protrusions protruding from the outer surface of the device as much as possible, or to cool the cooling air installed inside the device so that it can easily pass through the ventilation holes. It was necessary to take measures such as downsizing the fan.
[0006]
[Problems to be solved by the invention]
As described above, a metal plate-like member is widely used for the exterior (housing) of a normal apparatus. However, in such a structure, the projections such as the above-described eaves are not formed, and the cooling air As shown in FIG. 15, it is better to simply open the ventilation duct hole 3 in the side wall 2 of the housing 1 as a straight ventilation hole shape that allows the air to pass through smoothly.
[0007]
In the case of this structure, as shown in FIG. 15, the liquid 4 entering the inside of the housing 1 from the ventilation duct hole 3 travels along the inner wall surface of the housing and is discharged to the outside from the liquid removal hole 5 provided at the bottom of the housing. Therefore, it is considered that electrical safety can be maintained.
[0008]
However, actually, as shown in FIG. 16, when the liquid falls along the ventilation duct hole 3 or along the edge of the ventilation duct hole 3, the lower edge 4 a of the ventilation duct hole. When the liquid hits the liquid 6, the liquid 6 may jump into the apparatus vigorously. There is a concern that the liquid 6 may adversely affect electrical components and the like installed inside the apparatus.
[0009]
Therefore, in the structure shown in FIG. 15, it becomes impossible to install the electrical component close to the inner surface of the exterior, there is a limitation on the layout of the component, and the apparatus cannot be downsized.
[0010]
Even if the exterior member has an opening, the cooling air passage performance can be secured without providing a projection or the like on the outside of the exterior member for preventing liquid from entering from the opening. An object of the present invention is to further reduce the size of the casing device.
[0011]
[Means for Solving the Problems]
According to a first aspect of the present invention, in the casing device having at least one ventilation opening in a part of the side wall of the exterior member, the opening includes a hole formed by piercing the side wall of the exterior member. Furthermore, a cover member provided with a surface that covers only the lower end of the opening when projected perpendicularly to the side wall surface of the exterior member is disposed apart from the inner wall surface of the exterior member. It is what.
[0012]
Invention, in claim 1, the inner wall surface of the exterior member surface Urn cover member covering the opening is towards the upper with respect to the inner wall surface of the outer member as compared with the bottom side according to claim 2 It is the housing | casing apparatus characterized by leaning largely away from .
According to a third aspect of the present invention, in the first or second aspect, a plurality of vertically long openings are arranged in a line on the left and right, and the cover member is disposed over the plurality of openings. It is a body device.
The invention according to claim 4 is the casing device according to claim 1, 2, or 3, wherein the exterior member is a casing of an endoscope light source device.
[0013]
According to the present invention, the components inside the device can be installed up to the vicinity of the exterior member of the device, the components in the device can be laid out efficiently, and because it is a structure that minimizes the influence on ventilation, Air loss by the fan is suppressed, and the fan can be downsized.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
(First embodiment)
A housing apparatus according to a first embodiment of the present invention will be described with reference to FIGS.
[0015]
The external appearance of the housing device 11 of this embodiment is shown in FIG. The exterior member 12 of the casing device 11 is usually made of a metal or resin plate member in many cases. Again, the plate-shaped member is made as a rectangular casing.
[0016]
A side wall (including a wall on the rear side, etc.) 13 of the exterior member 12 is substantially vertical (vertical), and a cooling air (not shown) for cooling the inside of the casing device 11 passes through the side wall 13 for ventilation as an opening. A duct 14 is formed.
[0017]
As shown in FIG. 2, the ventilation duct 14 has a plurality of ventilation holes 15 having an oblong hole shape, and each ventilation hole 15 is long in the vertical direction and has the same length. The plurality of ventilation holes 15 are arranged in a line on the left and right, and are arranged in parallel with the same length.
[0018]
As shown in FIG. 2, a cover member 20 is attached to the inner surface of the side wall 13 of the exterior member 12 so as to face the ventilation duct 14 as the opening. The cover member 20 is formed in a substantially U shape as a whole by bending both ends of a long plate member in a metal or resin band shape into a crank shape. The cover member 20 is disposed across the ventilation duct 14 from side to side, and both end portions 21 of the cover member 20 are directly joined to the inner wall surface of the exterior member 12 by bonding, welding, screwing, or the like. It is fixedly attached. Both end portions 21 of the cover member 20 are fixed to the wall surfaces at the left and right positions avoiding the area of the ventilation duct 14.
[0019]
As shown in FIG. 3, the cover member 20 is disposed so as to cover at least the lower end portion of the opening of the ventilation duct 14 when vertically projected onto the side wall surface of the exterior member 12. In the present embodiment, the cover member 20 is disposed so as to cover only the lower end portion of the opening of the ventilation duct 14.
[0020]
Further, as shown in FIG. 2, the surface of the cover member 20 facing the opening of the ventilation duct 14 is separated from the inner wall surface of the exterior member 12 and is parallel to the inner wall surface.
[0021]
A portion of the bottom wall 22 of the exterior member 12 located immediately below the ventilation duct 14 is formed with a plurality of liquid removal holes 23 through which the liquid that has entered from the ventilation duct 14 is discharged. Yes. Further, these liquid removal holes 23 are arranged close to the corners of the bottom wall 22.
[0022]
Next, the effect | action with respect to 1st Embodiment is described. If liquid is applied to the casing device 11 and the liquid tries to enter the exterior member 12 from the opening portion of the ventilation duct 14, the liquid that enters from the ventilation hole 15 of the ventilation duct 14 becomes the ventilation hole. Even if it hits the lower end edge 15 a of 15 and jumps and flies, the splash is received by the cover member 20 and prevents the liquid from entering the interior of the exterior member 12.
[0023]
Furthermore, the fluid that has entered the apparatus flows down below the duct 14 and is removed from the apparatus through a liquid removal hole 23 located directly below the duct 14.
[0024]
(Second Embodiment)
A casing device according to a second embodiment of the present invention will be described with reference to FIGS.
[0025]
The casing device 11 of this embodiment shows a case where the ventilation holes 15 of the ventilation duct 14 are arranged in two rows. The plurality of ventilation holes 15 arranged in the left and right are arranged above and below the row (group), and the cover member 20 is located between the two rows of ventilation holes 15. As shown in FIG. 6, when viewed from the front, that is, when the cover member 20 is projected perpendicularly to the side wall surface of the exterior member 12, a part of the lower side of the ventilation holes 15 in the upper row, The cover member 20 is installed so as to cover both of the upper part of the side ventilation hole 15.
[0026]
Further, as shown in FIGS. 4 and 5, the surface of the cover member 20 facing the ventilation duct 14 is not parallel to the inner wall surface of the exterior member 12 but is inclined and inclined. The direction of the inclination is such that the upper side is far away from the inner wall surface of the exterior member 12. That is, as shown in FIG. 5, the cover member 20 has an inclination in a space 25 from the inner wall surface of the exterior member 12 to the internal component 24 when viewed from the lateral direction.
[0027]
In addition, about the other structure of this embodiment, it is the same as the structure of 1st Embodiment mentioned above.
[0028]
Next, the operation of this embodiment will be described. Since the upper side of the cover member 20 is inclined with respect to the inner wall surface of the exterior member 12, resistance to the cooling air 16 flowing through the ventilation holes 15 of the ventilation duct 14 is reduced. Moreover, even if the liquid entering from the ventilation hole 15 on the upper side of the ventilation duct 14 splashes by the lower edge 15 a of the ventilation hole 15, the splash is received by the cover member 20, and the liquid stays in the interior of the exterior member 12. Prevent entry.
[0029]
The liquid is applied to the exterior member 12, and the fluid that travels down the outer surface of the exterior member 12 first enters the upper ventilation hole 15 and jumps off by the lower edge 15 a of the ventilation hole 15. 20 can efficiently block. Since the cover member 20 is inclined in the above-described direction, even if the liquid flowing down along the surface is drawn to the inner surface of the exterior member 12 and flows away from the internal component 24, there is a flow force. It is transmitted to the inner surface of the exterior member 12 and smoothly flows down. Therefore, the liquid is prevented from being applied to the internal component 24 as much as possible.
[0030]
Further, the cover member 20 is located between the two rows of ventilation holes 15 so as to cover only the lower part of the upper row of ventilation holes 15 and the upper part of the lower ventilation hole 15. Therefore, the cover member 20 does not hinder the ventilation performance of the duct 14.
[0031]
Note that the phenomenon in which the liquid that has entered from the ventilation hole 15 splashes off by the lower edge 15a of the ventilation hole 15 is more severe in the upper ventilation hole 15, so that the lower edge 15a of the lower ventilation hole 15 is Even if it is not covered with the cover member 20, the effect sufficiently meets expectations.
[0032]
The casing device of the present invention can be applied to an endoscope light source device. An example of the internal structure of the endoscope light source device will be described below.
[0033]
FIG. 7 schematically shows an example of the structure from the light source lamp 31 to the incident end 33 of the endoscope fiber 32. As shown in FIG. 7, the light from the light source lamp 31 enters the incident end 33 through the optical filter 35 and the lens 36. Here, the optical filter 35 includes a reflection optical filter 37 at the front stage and an absorption optical filter 38 at the rear stage.
[0034]
The optical filter 35 is incorporated into the first mounting ring 41 to form a unit, and is assembled to the rotary turret plate 42 as shown in FIG.
[0035]
Further, the rotary turret plate 42 is provided with an optical filter 43 different from the optical filter 35, and this second optical filter 43 is also incorporated into the second mounting ring 44 to form a unit, which is shown in FIG. Thus, the rotary turret plate 42 is assembled. An optical filter 35, a second optical filter 43, and an emergency light unit 45 are set on the turret plate 41.
[0036]
The turret plate 42 has a first ring receiving slit 46 for mounting the first mounting ring 41 for holding the first optical filter 35 and a second ring receiver for mounting the second mounting ring 44 for holding the second optical filter 43. A slit 47 is provided.
[0037]
Although not shown, the means for mounting and fixing the mounting rings 41 and 44 to the turret plate 42 may be various, such as urging by an elastic member and screw fixing, in addition to the above-described means.
[0038]
FIG. 9 is a view of the first mounting ring 41 and the second mounting ring 44 from the side, and both the mounting rings 41, 44 have annular recesses 51, 52 that fit into both ring receiving slits 46, 47 of the turret plate 42. It is formed in the middle part, and the positions of the recesses 51 and 52 are biased back and forth and have an asymmetric shape with respect to the center thereof. In the case of the present embodiment, as shown in FIG. 9, the thickness of one of the mounting rings 41 and 44 is “A <B = <C <D” (A>B> = C> D is also possible) in order. It has become. The diameters of the recesses 51 and 52 are “φE> φF” (φE <φF is also acceptable).
[0039]
In the case shown in FIG. 9, the first attachment ring 41 is shown in FIG. 9A and the second attachment ring 44 is shown in FIG. 9B, but the reverse is also possible.
[0040]
10 is a side view of the turret plate 42, and FIG. 11 is a perspective view of the turret plate 42. As shown in FIGS. 10 and 11, a first arch-shaped part 56 is provided at the entrance of the first ring receiving slit 46 of the turret plate 42 so as to cover the slit portion. A second arch-shaped component 57 is provided at the entrance of the slit 47 so as to cover the slit portion. The heights α and β of the parts 56 and 57 from the surface of the turret plate 42 are “A <α <B = <C <β <D”.
[0041]
Furthermore, as shown in FIG. 11, the width X of the first ring receiving slit 46 and the width Y of the second ring receiving slit 47 are “X> Y” (X <Y is acceptable).
[0042]
According to this embodiment, only the optical filter mounting rings 41 and 44 corresponding to the first ring receiving slit 46 and the second ring receiving slit 47 of the turret plate 42 can be fitted. Moreover, the orientation of the mounting rings 41 and 44 relative to the first ring receiving slit 46 and the second ring receiving slit 47 is also determined in one direction, and can be mounted only in one pattern.
[0043]
The reason for this is that the first mounting ring 41 and the second mounting ring 42 can be formed by setting each dimension to “A <α <B = <C <β <D”, “φE> φF”, and “X> Y”. The turret plate 42 can be attached only to one of the ring receiving slit 46 and the ring receiving slit 47 in one direction.
[0044]
More specifically, the first mounting ring 41 can be mounted only in the direction of FIG. 10A by setting “A <α <B”, so that “φE> φF” and “X> Y”. Therefore, it can be attached only to the first ring receiving slit 46. On the other hand, the second mounting ring 44 can be mounted only in the direction of FIG. 10B by setting “C <β <D”, and “A <α <B = <C <β <D”. Therefore, it can be attached only to the second ring receiving slit 47. Accordingly, the dimensions of the mounting rings 41 and 42 and the arched parts 56 and 57 are set to “A <α <B = <C <β <D”, “φE> φF”, and “X> Y”. Thus, it is possible to prevent all reverse insertions.
[0045]
12 (a), the bent turret plate 61 and the inclined mounting ring 62 may be used. In this case, a bent piece 60 is formed at the edge of the ring receiving slit, and this portion By changing the dimensions “φK, φL, M, N”, it is possible to prevent errors similar to those described above. FIG. 12B shows a form in which the first inclined ring receiving slit 63 and the second inclined ring receiving slit 64 of the bending turret plate 61 are formed asymmetrically.
[0046]
On the other hand, what is shown in FIG. 13 is that a board mounting component 74 is joined by a screw 73 or the like in the vicinity of a board 71 installed in the casing device and an electronic part 72 with heat generation mounted on the board 71. It is provided.
[0047]
According to this embodiment, it is possible to cool the electronic component 72 mounted on the substrate 71 by introducing the heat 75 to the substrate mounting component 74 without providing a heat countermeasure component such as a heat sink in the electronic component 72 with heat generation. . Thereby, since the number of parts can be reduced, it contributes to size reduction of an apparatus.
[0048]
FIG. 14 shows an example in which a separate light leakage prevention plate 82 is installed on the front panel 81 of the light source device. As a method of attaching the light leakage prevention plate 82 to the front panel 81, a screw (not shown) or a fitting type may be considered. According to this structure, the light from the lamp 31 shown in FIG. 7 described above is diffusely reflected in the device, illuminates the front panel 81 of the light source device shown in FIG. It can prevent by the board 82, and the quality as a product improves.
[0049]
In addition, this invention is not limited to the thing of said embodiment.
[0050]
【The invention's effect】
According to the present invention, since the structure for blocking the liquid splashing into the apparatus from the opening in a part of the side wall of the exterior member can be made compact, the internal components of the apparatus can be laid out to the vicinity of the exterior of the casing apparatus. Therefore, there is no need to provide a protrusion outside the apparatus, and the apparatus to which the housing apparatus is applied can be downsized. Further, in the case where the surface of the cover member covering at least the lower end portion of the opening is inclined with respect to the inner wall surface of the exterior member, the ratio of the cover member being obstructed by the cooling air is reduced, and the cooling fan is reduced in size. Therefore, the device can be further miniaturized.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a housing device according to a first embodiment of the present invention.
FIG. 2 is a perspective view of the vicinity of the ventilation duct of the casing device as viewed from the inside of the device.
FIG. 3 is a diagram in which a cover member covering the ventilation duct of the casing device is projected onto the ventilation duct.
FIG. 4 is a perspective view of the vicinity of a ventilation duct of a housing device according to a second embodiment of the present invention as viewed from the inside of the device.
FIG. 5 is a side view of the vicinity of the ventilation duct of the casing device.
FIG. 6 is a diagram in which a cover member that covers the ventilation duct of the casing device is projected onto the ventilation duct.
FIG. 7 is an explanatory diagram schematically showing a light source structure of an endoscope light source device.
FIG. 8 is a perspective view of a rotary turret plate equipped with a mounting ring in the light source device.
FIGS. 9A and 9B are side views of a mounting ring attached to a rotary turret plate of an endoscope light source device.
FIGS. 10A and 10B are side views of a rotary turret plate with a mounting ring attached thereto.
FIG. 11 is a perspective view of a rotary turret plate of an endoscope light source device.
FIG. 12A is a side view in which a mounting ring is mounted on a rotary turret plate, and FIG. 12B is a perspective view of the rotary turret plate.
FIG. 13 is a perspective view of an example in which an electronic component that generates heat is mounted on a substrate installed in a housing device, and a substrate mounting component is provided in the vicinity thereof.
FIG. 14 is a perspective view of an example in which a light leakage prevention plate is installed on the front panel of the light source device.
FIG. 15 is a perspective view of the vicinity of a ventilation duct of a conventional casing device as seen from inside the device.
FIG. 16 is an enlarged perspective view of the vicinity of a ventilation duct of a conventional casing device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 ... Housing apparatus 12 ... Exterior member 13 ... Side wall 14 ... Ventilation duct 15 ... Ventilation hole 20 ... Cover member

Claims (4)

In a casing device having at least one ventilation opening in a part of the side wall of the exterior member,
The opening includes a hole formed by piercing the side wall of the exterior member , and further includes a surface that covers only the lower end of the opening when projected perpendicularly to the side wall of the exterior member. A casing device characterized in that a cover member is disposed apart from an inner wall surface of the exterior member. In claim 1, the surface Urn cover member covering the opening is inclined largely away from the inner wall surface of the outer member as someone who upper of lower side of the inner wall surface of the outer member A casing device characterized by the above. 3. The casing device according to claim 1, wherein a plurality of vertically long openings are arranged in a line on the left and right, and the cover member is arranged over the plurality of openings. 4. The housing device according to claim 1, wherein the exterior member is a housing of an endoscope light source device.

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