JP2009218763A - Electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a speaker peripheral structure for canceling the influence of a heat source on an internal component, caused by a decrease in a heat radiation area and a reduction in a distance between constituent components and the heat source because of miniaturization. <P>SOLUTION: Air heated by a controller 3 moves up inside electronic equipment, and an internal temperature of the electronic equipment is made higher than an external temperature of the electronic equipment by the controller 3. In order to transport the heated air inside the electronic equipment to external air at a lower temperature, heat is discharged from a heat radiating port on a main body case 2a of the electronic equipment provided around a speaker 1, thereby suppressing the internal temperature of the electronic equipment. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a heat dissipation means for an electronic device.

  As a product is further miniaturized, electronic components constituting the product are further miniaturized and components are further miniaturized, and a gap between the components is narrowed to increase a density. As the density of the constituents increases, the amount of heat generated inside becomes excessively dense, so that the internal temperature easily rises.

  FIG. 8 is a cross-sectional view of the vicinity of the speaker of the electronic device.

  Reference numeral 1 denotes a speaker in the electronic device, and reference numeral 2 denotes a main body case of the electronic device that fixes the speaker. Reference numeral 3 denotes a controller in the electronic device, for example, an IC having a large amount of heat. 4 is also a part of the main body case of the electronic device 2 and is an opening for sound output. The sound output from the first speaker passes through the speaker duct and is output to the outside of the electronic device through the four openings. 5 represents the flow of heat radiated from the controller, and the radiated heat rises and flows to the top of the electronic device.

  Also, the path of heat generated from the controller is not limited to radiant heat. Reference numeral 7 shown in FIG. 9 is a printed circuit board including an IC which is a controller 3, connected to 10 sheet metals provided for heat transfer or diffusion, and further 2 electronic devices Heat is transferred to the main body case and radiated to the outside.

Conventionally, in a large-sized apparatus, a system that exhausts internal heat using FAN has been proposed in a speaker system having a bass reflex duct opening. (For example, see Patent Document 1)
Japanese Patent No. 3874117

  In the conventional configuration, with the downsizing, the main body case of the two electronic devices is reduced, the heat dissipation area is reduced, and the heat dissipation efficiency is deteriorated. Moreover, since the material 2 is a plastic material, it has a very high thermal resistance and is difficult to transfer heat. For this reason, in order to transfer the heat from the controller 3 to the heat exchanger 2, a large number of sheet metals 10 are required. Conductivity decreases. In addition, since the arrangement of the ten metal plates is also limited, it is difficult to take an optimum configuration for heat dissipation.

  As a result, as miniaturization progresses, the state in which heat is difficult to dissipate to the outside accelerates. In addition, since the distance to the controller 3 is reduced, the internal parts are easily affected by the radiant heat radiated from the controller 3, and there is no thermal margin for the upper temperature limit of the internal components. The internal parts must be replaced with ones with higher temperature upper limits.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems and aims to increase the heat radiation efficiency without relying only on heat radiation from the two electronic device main body cases having high thermal resistance.

  In order to solve the conventional problem, the invention described in claim 1 includes a speaker, an opening for outputting sound from the speaker, a main body case having the opening and the speaker, and a main body case. And a controller built therein, wherein the controller and the opening are connected via a heat radiation port.

  Furthermore, the invention described in claim 2 of the present invention is characterized in that the heat radiation port is disposed above the controller.

  Furthermore, the invention described in claim 3 of the present invention is characterized in that the opening has a waterproof structure.

  Furthermore, the invention described in claim 4 of the present invention is characterized in that a speaker duct to the opening is provided and an angle is provided on the wall of the speaker duct.

  As described above, according to the present invention, the air inside the heated electronic device is obtained by using the speaker duct structure and the audio output opening from the heat radiating port of the main body case of the electronic device provided around the speaker. Can be discharged to the outside, and an increase in internal temperature can be suppressed.

  Furthermore, it is possible to prevent liquid from entering from the outside by providing the opening with a waterproof structure.

  Hereinafter, an embodiment of the invention described in claim 1 of the present invention will be described with reference to FIG.

(Embodiment 1)
FIG. 1 is a cross-sectional view of the vicinity of a speaker of a home video camera according to an embodiment of the present invention. In FIG. 1, the same components as those in the prior art are designated by the same reference numerals and description thereof is omitted. Although 2a is a main body case of an electronic device, 11 heat radiation openings 1 and 12 heat radiation openings 2 are provided in one speaker mounting portion. 5a represents the change in the flow of the changed heat flow radiated from the controller by changing the structure of the main body case of the electronic device 2a. Reference numeral 16 denotes a newly provided wall 2, which is also a wall for preventing deterioration of sound.

  For example, when recording and using a video camera, the speaker is in a stopped state and no sound is output. In addition, the internal temperature of the electronic device gradually rises due to heat radiation from the three controllers. The air heated by the controller 3 moves to the upper part in the electronic device. Further, since the internal temperature of the electronic device is heated by the three controllers, it is higher than the external temperature of the electronic device. The heated air in the electronic device is dissipated from the heat radiation port 1 of the main body case 11 of the electronic device 2a provided in one speaker mounting portion so as to be transmitted to the external air having a lower temperature. Go. Thereby, the internal temperature of the electronic device can be suppressed.

  The newly provided eleven and twelve radiating ports 1 and 2 may deteriorate the sound quality during reproduction using the speaker in the electronic device. In order to prevent the deterioration of sound quality, the sound quality deterioration can be prevented by providing the structure in the vicinity of the speaker mounting of 1 of the main body case of the electronic device 2a by providing 16 walls 2 for preventing sound loss.

(Embodiment 2)
FIG. 2 is a sectional view of the vicinity of the speaker of the home video camera according to the embodiment of the present invention. In FIG. 2, the same components as those in the prior art are designated by the same reference numerals and description thereof is omitted. In addition to the embodiment of claim 1, 3 b is a control disposed at the lower part of 11 heat radiation ports 1 and 12 heat radiation ports 2 provided in one speaker mounting portion of the body case of the electronic device 2 a. It is a vessel. 5b shows the movement of the heat flow which is radiated and changed by the controller due to the movement of the controller 3b.

  The location of the 11 and 12 radiator holes 1 and 2 provided in the speaker mounting part 1 of the main body case of the electronic equipment 2a and the controller 3b is in a vertical relationship (on the radiator hole and below the controller). As a result, the air radiated from the controller 3b is blocked by the internal components or can be efficiently transmitted to the external air without being concentrated in one place.

(Embodiment 3)
However, when liquid is applied to the electronic device, the liquid may enter the inside through the four openings. If liquid enters the inside through the heat dissipation port and comes into contact with electrical components, it will cause a failure and the value of the product itself will be lost.

  3 and 4 are sectional views of the vicinity of the speaker of the home video camera according to the embodiment of the present invention. In FIG. 3, the same components as those in the prior art are designated by the same reference numerals and description thereof is omitted. In addition to the above-described embodiment, reference numeral 6 represents liquid intrusion.

  In FIG. 4, reference numeral 15 denotes a wall 1 that prevents liquid from entering, and reference numeral 13 denotes the height of the 15 wall 1. Reference numeral 14 represents the height of the inner dimension of the speaker duct.

  By making the height of 15 walls 1 of the cabinet of 2a electronic equipment higher than the height of 14 speaker ducts and overlapping the height of 16 walls 2 with the height of 13 walls 1 The liquid that has entered the inside can be prevented from entering the inside of the electronic device from the speaker duct.

(Embodiment 4)
5, 6, and 7 are sectional views of the vicinity of the speaker of the home video camera according to the embodiment of the present invention. The same components as those in the past are given the same numbers and the description thereof is omitted. In FIG. 7, the upper and lower walls of the speaker duct have an angle θ1 of 8 and an angle θ2 of 9. 6d in FIG. 6 shows the changed flow of liquid by giving the angles [theta] 1 and [theta] 2 of 8 and 9 to the wall of the speaker duct.

  Thereby, in FIG. 5, the opening part of 4d becomes large and the sound quality is improved by increasing the aperture ratio. Furthermore, as the area of contact with the outside of the electronic device increases, the heated air is discharged to the outside of the electronic device at an angle θ1 of 8 in FIG. In FIG. 6, even when the liquid 6d enters the electronic device, it can be said to be a safer structure because it is naturally discharged to the outside by the angle θ2 of 9 in FIG.

  The electronic device provided with the speaker according to the present invention uses the speaker duct structure and the audio output opening from the heat radiation port of the main body case of the electronic device provided around the speaker, so that the inside of the heated electronic device is It is useful as a heat dissipation means for electronic equipment that allows air to be discharged to the outside and suppresses an increase in internal temperature.

Sectional drawing for demonstrating one Embodiment of the speaker vicinity of this invention Sectional drawing for demonstrating one Embodiment of the speaker vicinity of this invention Sectional drawing for demonstrating one Embodiment of the speaker vicinity of this invention Sectional drawing for demonstrating one Embodiment of the speaker vicinity of this invention Sectional drawing for demonstrating one Embodiment of the speaker vicinity of this invention Sectional drawing for demonstrating one Embodiment of the speaker vicinity of this invention Sectional drawing for demonstrating one Embodiment of the speaker vicinity of this invention Cross-sectional view of a conventional electronic device near the speaker Sectional view of the vicinity of the speaker of a conventional electronic device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Speaker 2 Electronic device main body case 3 Controller 4 Opening part 5 Heat flow 6 Liquid 7 Printed circuit board 8 Speaker duct Upper part angle (theta) 1
9 Speaker duct Lower angle θ2
10 Sheet metal 11 Heat radiation port 1
12 Heat dissipation port 2
13 Height of wall 1 14 Speaker duct height 15 Wall 1
16 Wall 2

Claims (4)

A speaker, an opening for outputting sound of the speaker, a main body case having the opening and the speaker, and a controller built in the main body case, the controller and the opening having a heat radiation port. An electronic device characterized by being connected to each other. The electronic apparatus according to claim 1, wherein the heat radiating port is disposed above the controller. The electronic apparatus according to claim 1, wherein the opening has a waterproof structure. The electronic apparatus according to claim 1, further comprising a speaker duct connected to the opening, wherein the speaker duct has an angled wall.

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