JPH1154956A - Enclosure case of electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To retain waterproofness of an enclosure case of an electronic apparatus, and achieve miniaturization and lower costs. SOLUTION: A case 100 comprises a base 10 and a cover 20. The base 10 comprises an installation-plane 2 and a terminal extraction plane 1, which is installed vertically to the plane 2 and includes holes 6, 7, 8, and 9 for external electric wiring of amplifier terminals and a U-shaped notch 3 for external electric-wiring of power source. The first sidewall 4 and the second sidewall 5 are installed in proximity to the notch 3 located inside the plane 1, where both side walls 4 and 5 are joined in one side each to the plane 1 and also, joined in another side each to the plane 2. The sidewalls 4 and 5 are installed vertically to the planes 1 and 2. The cover 20, which is box-shaped and has an opening to match the plane 1 of the base 10, is equipped with skirts 21a, 21b, and 21c to provide water-proofness for the amplifier terminals and power source by covering them when fitted to the base 10. The case 100, where packing to the notch 3 is not included and the sidewalls 4 and 5 are included, reduces quantity of parts and miniaturizes the device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing case of an electronic device installed outdoors, for example, an indoor CATV.
The present invention relates to a waterproof case used when installing electronic equipment for outdoor use.

[0002]

2. Description of the Related Art Conventionally, as a waterproof case of a CATV electronic device installed outdoors, for example, one having a structure shown in FIG. 7 is known. Case 2 as shown in FIG.
00 is a main body case 4 in which an electronic device (not shown) is stored and fixed.
0 and a cover 41 that covers the electronic device are provided so as to be openable and closable by a hinge mechanism 43, and the main body case 40 and the cover 41 are fixed in a closed state by a fastener 44. In this case 200, terminals and power lines provided in the electronic device are led out to the outside by a cylindrical take-out portion 42 provided at the lower end thereof.

[0003]

However, according to the above-mentioned prior art, a power supply line or the like is sandwiched between the take-out portions 42 by using packing such as sponge or rubber, and a joint surface between the main body case 40 and the cover 41 is also provided. Since the case 200 is waterproofed by disposing the packing, there is a problem that the number of parts increases and the cost increases. Further, since the take-out portion 42 is provided so as to protrude from the lower end, the size of the case 200 is correspondingly increased, and this also causes a problem that the cost is increased.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a housing for an electronic device that is small in size and low in price while ensuring waterproofness in view of the above problems.

[0005]

According to the first aspect of the present invention, a housing case of an electronic device installed outdoors comprises a base and a cover. You. The base has a terminal extraction surface formed with a hole for extracting a terminal provided in the electronic device to the outside, and a mounting surface which is substantially vertically provided with respect to the terminal extraction surface and used for mounting at a predetermined position. The electronic device is fixed to the base. The cover covers the electronic device by being locked to the base, and has a skirt protruding outward from the terminal extraction surface by a predetermined length. A groove having a substantially U-shaped cross-section having a first side wall and a second side wall for leading out a power supply line of the electronic device to the outside at an edge of the terminal extraction surface has a predetermined length inside. Formed. Thereby, the power supply line is arranged in the groove provided inward at the edge of the terminal extraction surface, and the hem of the cover is provided so as to protrude outward by a predetermined length with respect to the terminal extraction surface. And sufficient waterproofness can be obtained. In addition, since the power supply line is arranged in the groove having a substantially U-shaped cross section, assembly is easy. Further, since no packing is required to obtain waterproofness for the groove, the number of parts can be reduced. Further, since the groove for leading out the power supply line is provided inside, the case can be reduced in size and the cost can be reduced.

According to the second aspect, the depth and width of the groove on the terminal extraction surface side are made substantially equal to the outer diameter of the power supply line, so that the power supply line and the first and second side walls are formed. Is eliminated, and the waterproofness of the case can be further improved.

According to the third aspect, at least one side of the first side wall and the second side wall located on the side of the electronic device is provided on the terminal extraction surface, and the other side is on the mounting surface. By being provided, the side wall constitutes a partition partitioning between the electronic device and the power supply line. Even if water enters the inside of the case from the groove, the partition wall extending to the mounting surface prevents entry into the electronic device, so that entry of water into the electronic device can be more effectively prevented.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on specific embodiments. FIG. 1 is a schematic diagram showing a configuration of a housing case 100 according to a specific embodiment of the present invention.
The case 100 is made of a hard resin such as ABS (acrylonitrile-butadiene-styrene) and includes a base 10 and a cover 20. The base 10 has a mounting surface 2 provided with mounting holes 11 and 12 for mounting to a wall surface or the like.
And a terminal take-out surface 1 substantially perpendicular to the mounting surface 2. The terminal extraction surface 1 has a CAT
Holes 6, 7,... For leading the ground terminal, input terminal, monitor terminal, and output terminal of the V amplifier to the outside, respectively.
8 and 9 are formed. In order to lead the power supply line of the amplifier to the outside, a substantially U-shaped notch 3 is formed in the edge 1a of the terminal extraction surface 1. The depth and width of the notch 3 are formed substantially equal to the outer diameter of the power supply line.
A first side wall 4 and a second side wall 5 having a predetermined length are provided near the side wall 3a of the notch 3 inside the terminal extraction surface 1. One side of the first side wall 4 and the second side wall 5 is joined to the terminal take-out surface 1, and the other side is joined to the mounting surface 2, and is substantially perpendicular to the terminal take-out surface 1 and the mounting surface 2. . The first side wall 4 and the second side wall 5 have a trapezoidal shape in which the mounting surface 2 side is longer than the notch 3 side. Here, the notch 3, the first side wall 4, and the second side wall 5 correspond to a groove in claims, and
The side wall 4 corresponds to a partition separating the amplifier and the power supply line. The cover 20 has a substantially box shape having an opening corresponding to the terminal extraction surface 1 of the base 10, and the base 1 is provided on an inner wall of the front portion 20 a.
A locking portion 22 (see FIG. 3) used for locking with 0 is provided. Also, the front part 20a and the side parts 20b, 20c
In order to provide a waterproof effect to the terminals and the power supply line of the amplifier when it is locked to the base 10,
1a, 21b and 21c are provided respectively.

Next, a method of attaching the amplifier 30 to the case 100 will be described with reference to FIGS. First,
The amplifier 30 is placed on the mounting surface 2 of the base 10, and the input terminal 34, the monitor terminal 35, and the output terminal 36 are inserted into the holes 7, 8, and 9, respectively. And abut. Since the input terminal 34, the monitor terminal 35, and the output terminal 36 are connected to coaxial cables each having a rubber boot (not shown), good waterproof properties can be obtained for these terminals. Next, ground terminal 3
A screw 33 is inserted into the second hole, and the screw 33 is screwed into a screw hole (not shown) of the amplifier 30 through the hole 6. This screw 3
The amplifier 30 is fixed to the base 10 by being screwed into the screw hole 3. Also, the case of the amplifier 30 is
2 is electrically connected. A 100 V power supply line 31 led out from the side surface of the amplifier 30 is arranged between the first side wall 4 and the second side wall 5, and led out of the notch 3 to the outside of the terminal extraction surface 1. FIG. 2 is a perspective view showing a state in which the amplifier 30 is mounted on the base 10.

After the amplifier 30 is fixed to the base 10, the cover 20 is arranged in the positional relationship shown in FIG. 1 with respect to the base 10, and the cover 20 is slid toward the base 10, whereby the cover 20 is moved. Assemble to base 10. The locking portion 22 provided on the front portion 20 a of the cover 20
Of the cover 20 and the base 1
0 is assembled. FIG. 3 is a schematic cross-sectional view showing this state, and the vertical direction of the figure is the wall direction. FIG.
FIG. 5 is a view seen from the second side wall 5 side, where a plane orthogonal to the mounting surface 2 through the notch 3 is a cut surface. As shown in FIG. 3, the skirts 21a, 21b and 21 of the cover 20 are provided.
c is provided to protrude downward from the terminal extraction surface 1 by a predetermined length. To remove the cover 20, a force is applied to the skirt portion 21a in a direction away from the terminal extraction surface 1, and the locking portion 22
The cover 20 may be slid upward by releasing the engagement between the and the edge 1a.

As described above, the notch 3 is provided at the edge 1 a of the terminal extraction surface 1, the depth and the width of the notch 3 are substantially equal to the outer diameter of the power supply line 31, and the skirt 21 a of the cover 20 is formed. ~ 2
Since 1c protrudes downward by a predetermined length, rainwater does not enter the case 100 from the notch 3 and rainwater traveling within an angle range of 60 degrees from the vertical (JIS protection class 3). Good waterproofness is obtained. Even if water enters the case 100 through the notch 3, the first side wall 4 functions as a partition separating the power line 31 and the amplifier 30, so that the amplifier 30 can be reliably waterproofed.
In addition, due to the length of the first side wall 4 and the second side wall 5, even if water enters through the notch 3, the water does not enter between the first side wall 4 and the amplifier 30 but is outside the notch 3 by gravity. Good drainage can be obtained. Further, when the power supply line 31 is assembled, the first side wall 4 and the second side wall 5 function as guides, so that the power supply line 31 can be easily assembled. Further, in the present embodiment, it is not necessary to provide packing such as rubber between the notch 3 and the power supply line 31 in order to obtain waterproofness, so that the number of parts of the case 100 can be reduced, and the cost can be reduced. Further, since the first partition 4 and the second partition 5 are provided inside the case 100, the size of the case 100 can be reduced.
Cost can be further reduced.

In the above embodiment, the other ends of the substantially trapezoidal first side wall 4 and the second side wall 5 are joined on the mounting surface 2. However, if a partition for separating between the power supply line 31 and the amplifier 30 is provided. Therefore, the other end of the second side wall 5 does not necessarily have to be joined to the mounting surface 2. Also, the hem portions 21a to 21c of the cover 20
If the waterproof effect is sufficient, the power line 31 and the amplifier 3
There may not be a partition partitioning between zero and zero. FIG. 4 is a perspective view of a base 60 having no partition wall, and has a substantially U-shaped notch 3.
In the vicinity of the side wall 3a, a groove 50 having a substantially U-shaped cross section composed of predetermined length side walls 51 and 52 is joined so as to protrude inside the edge 1a. In the base 60, the side wall 51 provided on the amplifier side is not joined to the mounting surface 2, and no partition wall is provided between the power supply line and the amplifier. In this manner, the base 60 may be provided with no partition if the waterproof effect of the hem portions 21a to 21c of the cover 20 is sufficient.
Also, in the above embodiment, the depth and width of the notch 3
Although the waterproofness is enhanced by making the outer diameter dimension substantially equal to the outer diameter dimension of the first power supply line 1, the portion that is made substantially equal to the outer diameter dimension of the power supply line 31 is not limited to the notch 3. For example, in the configuration shown in FIG. 4, the depth and the width of the groove 50 are changed along the longitudinal direction, and the depth and the width of the groove 50 are set at a predetermined position on the side of the notch 3 in the longitudinal direction. If the outer diameter of the notch 3 is substantially equal to the outer diameter of the wire, the waterproofness equivalent to that of the above embodiment can be obtained without making the depth and width of the notch 3 substantially equal to the outer diameter of the power supply line 31.

In the above embodiment, the power supply line 31 is taken out from the notch 3 provided on the edge 1a of the terminal extraction surface 1 facing the front part 20a of the cover 20.
May be taken out from the other edge of the terminal take-out surface 1. For example, as shown in FIG. 5, a groove 70 may be provided on the edge 1 c of the terminal extraction surface 1 facing the side surface 20 c of the cover 20, and the power line 31 may be extracted from the groove 70.
Further, as shown in FIG. 5, the end face 70a of the groove 70 may be provided so as to protrude outside the terminal extraction surface 1.

The mounting surface 2 may be used to form a groove for taking out the power supply line 31. FIG. 6 shows the configuration. As shown in FIG. 6, the size of the terminal extraction surface 1 of the base 110 is substantially the same as the size of the amplifier 30, and is formed smaller than the base 10 shown in FIG. ing. A first side wall 81 is provided on the edge 1 c of the terminal extraction surface 1 so as to be substantially orthogonal to the terminal extraction surface 1 and the mounting surface 2.
The depth of the first side wall 81 is substantially equal to the edge 1 c of the terminal extraction surface 1, and the end 81 a on the side different from the edge 1 c does not have a length to reach the end 2 a of the mounting surface 2, The power supply line 31 can be arranged in the space between the end 81a and the end 2a. A second side wall 82 is provided on the mounting surface 2 at a predetermined distance from the first side wall 81. Second side wall 82
Is substantially equal to the outer diameter of the power supply line 31 described above. First
A groove 80 is formed by the side wall 81, the second side wall 82, and the portion of the mounting surface 2 therebetween. The cover 120 is provided with the groove 8
A convex portion 121 having a shape corresponding to 0 is provided, and has a shape smaller than that of the cover 20 shown in FIG.
As described above, the case 10 is formed by the base 110 and the cover 120.
By configuring 1, it is possible to obtain waterproofness equivalent to that of the above-described embodiment, and it is possible to further reduce the size of the case 101. In the above embodiment, an example in which the present invention is applied to the amplifier 30 has been described. However, the present invention is applicable to all electronic devices installed outdoors.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of a housing case according to a specific embodiment of the present invention.

FIG. 2 is a perspective view showing a state where an amplifier is mounted on a base of a housing case.

FIG. 3 is a schematic cross-sectional view showing a configuration of a housing case incorporating an amplifier.

FIG. 4 is a perspective view showing a configuration in which a partition is not provided in a housing case according to a specific embodiment of the present invention.

FIG. 5 is a perspective view showing a configuration in which a notch is provided at another edge of the terminal mounting surface in the housing case according to the specific embodiment of the present invention.

FIG. 6 is a perspective view showing a configuration in which a groove portion including a side wall and a mounting surface is provided in a housing case according to a specific embodiment of the present invention.

FIG. 7 is a schematic view showing a configuration of a conventional housing case.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Terminal extraction surface 2 Mounting surface 3 Notch 4 1st side wall 5 2nd side wall 10 Base 20 Cover 21a-21c Bottom part 30 Amplifier 31 Power supply line 100 Housing case

Claims (3)

[Claims] 1. A housing case for an electronic device installed outdoors, comprising: a terminal extraction surface formed with a hole for extracting a terminal provided on the electronic device to the outside; and a terminal extraction surface. And a mounting surface used for mounting on a surface in a substantially vertical direction, and a base to which the electronic device is fixed, and the electronic device is covered by being locked with the base. ,
A cover having a hem protruding outside the terminal extraction surface by a predetermined length, and a first side wall and a second side for leading a power supply line of the electronic device to the outside at an edge of the terminal extraction surface. Approximately U having two side walls
A housing case for an electronic device, wherein a groove having a U-shaped cross section is formed with a predetermined length inside. 2. The case according to claim 1, wherein a depth and a width of the groove on the terminal extraction surface side are substantially equal to an outer diameter of the power supply line. 3. The first side wall and the second side wall.
At least one side of the side wall located on the electronic device side is provided on the terminal extraction surface, and the other side is provided on the mounting surface, so that the side wall partitions the electronic device from the power supply line. The case of an electronic device according to claim 1 or 2, wherein: