JPH0223033Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a heat dissipation structure for a carrying case for electrical equipment.

(Prior art) As a means of dissipating the heat generated by electrical equipment housed in an electrical equipment carrying case, many small heat dissipation holes are bored in the side wall of the case, as seen in the case of a portable radio. It is generally known that heat is dissipated through these heat radiation holes.

However, since the heat radiation holes are formed on the side wall of the case exposed to the outside and allow the inside of the case to communicate directly with the outside, rainwater easily enters the inside of the case.
There is a risk of electrical equipment leakage. For example, the main body of a personal radio for a car generates a large amount of heat, so it has a heat dissipation part exposed to the outside, but when this radio is stored in a carrying case with the heat dissipation holes and used as a mobile station, the heat dissipates. Although this is possible, it will face the problem of rainwater intrusion mentioned above.

On the other hand, as disclosed in Japanese Utility Model Application Publication No. 54-57446, a relatively large heat radiation hole is opened in the upper wall of the electrical equipment storage box, and a heat radiation cover covering the heat radiation hole is placed around the periphery of the heat radiation hole. Some parts are attached using mounting members. That is, in this case, a gap is formed between the periphery of the heat radiation cover and the above-mentioned upper wall, and the heat inside the storage box is dissipated to the outside through the heat radiation hole and the gap. be.

(Problem to be Solved by the Invention) However, in the storage box having the heat dissipation cover described above, since the large diameter heat dissipation hole is opened in the upper wall, the strength of this upper wall tends to be low. This becomes a problem when the storage box is carried around. In other words, in order to make this portable, a grip part or a shoulder strap must be installed on the top wall of the storage box, but if the top wall is weak, it will easily deform and the storage box itself will be damaged. Unless it is made thicker, there is a problem that it will not be possible to carry it like this.

Moreover, if the wall thickness of the storage box is increased, the box itself becomes heavy, making it unsuitable for portability.

Therefore, the present invention aims to provide a heat dissipation structure that can avoid the problem of rainwater intrusion while ensuring the strength of the carrying case without increasing its weight.

(Means for Solving the Problem) The present invention solves this problem by attaching the above-mentioned mounting member for the heat dissipation cover to the upper wall of the carrying case so as to straddle the heat dissipation hole. This is to compensate for the decrease in the strength of the upper wall of the carrying case due to the opening of the heat radiation hole.

That is, the specific means for this is that a heat dissipation cover that covers the heat dissipation hole from above is attached to the upper wall in which the heat dissipation hole is opened, with a space provided between the heat dissipation cover and the above-mentioned upper wall, and the heat dissipation cover is attached to the heat dissipation cover. In the carrying case for electrical equipment, which is provided with a ventilation hole that communicates the air with the outside, lifting means for carrying the carrying case are installed on both sides of the heat radiation hole on the upper wall. The mounting member straddles the heat radiation hole and extends in a direction connecting the two mounting parts, and both ends thereof are fixed to the upper surface of the upper wall, and the heat radiation cover is fixed on top of the mounting member. This is a heat dissipation structure for a carrying case for electrical equipment.

(Function) In the above heat dissipation structure, the heat generated inside the carrying case due to the use of electrical equipment is radiated from the heat dissipation hole in the upper wall of the case through the air and ventilation section between this upper wall and the heat dissipation cover. Since the heat dissipation hole is covered from above with a heat dissipation cover, rainwater is prevented from entering the inside of the case through the heat dissipation hole.

However, the strength of the case upper wall itself is reduced due to the formation of the heat radiation holes, but since the mounting members are fixed to both sides of the case upper wall, straddling the heat radiation holes, these mounting members are used to raise the case. The walls will be reinforced. And this mounting member is
Since it extends in a direction that connects both mounting parts of the portable lifting means provided on both sides of the heat radiation hole, deformation of the upper wall when lifting the carrying case is efficiently prevented by the mounting member. It is something that

(Effect of the invention) Therefore, according to the invention, the mounting member for the heat dissipation cover extends across the heat dissipation hole on the upper wall of the carrying case in the direction connecting both the mounting parts of the portable lifting means, is attached to the upper wall, this mounting member compensates for the decrease in strength of the upper wall of the carrying case due to the opening of the heat radiation hole, and reliably prevents deformation of the upper wall even if the carrying case is lifted. without increasing the weight of the carrying case while ensuring its strength.
The problem of rainwater intrusion can be avoided.

(Example) Hereinafter, an example of the present invention will be described based on the drawings. In this embodiment, the electric device is the main body of a personal radio for an automobile, but it goes without saying that the present invention is not necessarily limited to this.

As shown in FIGS. 1 to 3, electrical equipment 1
is a main body of a personal radio for a car, which is made up of an amplifier, switches, etc., assembled together, and has an operation surface 2 formed on its front surface, and a plurality of heat dissipation slits 3 formed on its top plate. A heat dissipation plate 6 having a plurality of heat dissipation slits 4 and heat dissipation fins 5 arranged alternately is fixed to the rear surface.

As shown in FIGS. 4 and 5, the carrying case 7 consists of a case body 8 and a lid 9.
A heat radiation cover 16 is attached to the.

First, the case body 8 is made of wood and has a square opening at the top. The lid 9 is made of wood and has a rectangular box shape with an open bottom.
is attached to the case body 8 to cover the upper opening of the case body 8. The front face F of the lid 9 is open, and a reinforcing member 13 connecting both side walls is provided at the lower part thereof.

As shown in FIG. 6, a relatively large heat radiation hole 14 is formed in the center of the upper wall of the lid 9, and a carrying case 7 is formed on both sides of the heat radiation hole 14. Each of them is provided with a mounting portion for a shoulder belt (lifting means) 15 for carrying the vehicle. The heat dissipation cover 16 covers the heat dissipation hole 14 from above, and has a groove shape opening downward, so that a space 17 is formed between the heat dissipation cover 16 and the upper wall of the lid 9. Mounting member 1
It is attached via 8. Further, a large number of heat dissipation slits 19 are formed in a portion extending from the top wall to the side wall of the heat dissipation cover 16. In this case, the front and rear openings of the heat dissipation cover 16 and the heat dissipation slit 1
9 constitutes a ventilation section that communicates the air 17 with the outside.

The mounting member 18 has a convex cross section and extends in a direction connecting both mounting portions of the shoulder belt 15 across the center of the heat dissipation hole 14 in the upper wall of the lid 9, and has both ends attached to the lid. It is fixed to the upper wall of 9 with screws 30. The heat dissipation cover 16 is fixed to the top surface of the mounting member 18 with screws 21. Furthermore, a heat radiation hole 20 is formed in the top surface of the mounting member 18 .

The electric device 1 is fitted inside a device fixing fitting 22 with a reverse groove-shaped cross section fixed to the back surface of the lid 9, and is fitted with a screw 3.
The operating surface 2 is exposed to the outside through the open front F of the lid 9.

As shown in FIG. 7, the interior of the case body 8 is divided into a speaker chamber 25, a power supply chamber 2,
It is divided into three rooms: 6 and 7 for small items. In the speaker chamber 25, a speaker 28 is fixed to a front plate 29 on which a net 10 is stretched. Power supply room 2
6 is a power supply device that can use three power sources: an automobile battery, a household power supply, and a dedicated battery (not shown)
is stored. The accessory compartment 27 stores accessories (not shown) such as a microphone and a retractable antenna.

Note that the case body 8 and the lid 9 are not necessarily limited to being made of wood, but may be made of leather, plastic, metal, or the like. Furthermore, both the hinge 11 and the hook 12 may be replaced with hinges that allow the pivot to be removed, and the lid 9 may be attached to and detached from the case body 8 by inserting and removing the pivot. Furthermore, the materials of the lid 9, heat dissipation cover 16, and mounting member 18 must not be easily deformed by heat.

Therefore, in the carrying case 7,
Heat generated inside the electrical equipment 1 when used is dissipated into the carrying case 7 through the heat radiation slits 3 and 4 of the electrical equipment 1, and then through the heat radiation hole 14 of the lid 9 or the heat radiation hole 20 of the mounting member 18. Sky = 1
7, and is emitted from this air 17 to the outside through the front and rear openings of the heat dissipation cover 16 or the heat dissipation slits 19. Furthermore, heat generated from accessories housed in the case body 8 also rises into the lid 9 and is emitted to the outside in the same manner as described above. Note that by separately providing a ventilation hole in the bottom wall of the case body 8, outside air can be taken in through the ventilation hole to enhance the heat dissipation effect. On the other hand, since the heat radiation hole 14 of the lid 9 is covered from above with a heat radiation cover, the heat radiation cover 16 prevents rainwater from entering the inside of the carrying case 7 through the heat radiation hole 14.

Although the strength of the upper wall of the lid 9 is reduced by itself due to the formation of the heat radiation hole 14, the mounting member 18 straddles the heat radiation hole 14 and is fixed to the upper wall of the lid 9 on both sides thereof. Therefore, the lid 9 is reinforced by the mounting member 18. Since the mounting member 18 extends in a direction that connects both mounting portions of the shoulder belt 15 provided on both sides of the heat radiation hole 14,
Even if the carrying case 7 housing the electrical device 1 is lifted, the mounting member 18 efficiently prevents the lid 9 from deforming.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a front view of the electrical equipment, Fig. 2 is a plan view of the same, Fig. 3 is a rear view of the same, and Fig. 4 is a front view of a carrying case containing the electrical equipment. 5 is a side view of the same, FIG. 6 is an exploded perspective view showing the lid portion of the carrying case, and FIG. 7 is a cross-sectional view taken along the line of FIG. 4. 1... Electrical equipment, 7... Carrying case, 9
... Lid (top wall), 14 ... Heat radiation hole, 15 ... Shoulder belt (portable lifting means), 16 ... Heat radiation cover, 17 ... Sky, 18 ... Mounting member, 19
...Heat radiation slit (ventilation section).

Claims (1)

[Scope of Claim for Utility Model Registration] A heat dissipation cover that covers the heat dissipation hole from above is attached to the top wall in which the heat dissipation hole is opened, with a space provided between the heat dissipation cover and the top wall, and the heat dissipation cover covers the heat dissipation hole. In a carrying case for electrical equipment, which is provided with a ventilation hole that communicates with the outside, the upper wall has mounting portions for lifting means for carrying the carrying case on both sides of the heat radiation hole. The mounting member straddles the heat radiation hole and extends in a direction connecting both the mounting portions, and both ends thereof are fixed to the upper surface of the upper wall, and the heat radiation cover is fixed onto the mounting member. A heat dissipation structure for a carrying case for electrical equipment.