JP2004072420A - Portable telephone set - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable telephone set provided with a vibration motor for incoming call having a cooling function for dissipating heat to the surroundings. <P>SOLUTION: Cooling fins are provided on the shaft of the vibration motor 45 for incoming call. When an electronic component 42 generates heat, the motor 45 is operated even when there is no incoming call to provide vibration to the component 42 generating heat so that the heat is easily dissipated, and the cooling fan is rotated to send a wind to the component 42, thereby cooling the component 42. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a mobile phone device, and more particularly to a mobile phone device provided with a vibration motor for incoming calls.
[0002]
[Prior art]
2. Description of the Related Art In recent years, mobile phones have become more sophisticated and multifunctional to meet market demands and product differentiation, and various functions have been added to the conventional mobile phone, instead of only a call function. For example, transmission of text data such as e-mail, transmission of image data, transmission of music data, and the like are performed by a data communication function in addition to the original call function of a mobile phone.
[0003]
Various data are displayed on a display device built in the mobile phone, and can be reproduced and viewed by a speaker or an earphone. In addition to obtaining image data from the outside through data communication, a camera is provided on the mobile phone body, images captured by the camera are reproduced in color on the display unit as moving images, and further stored in the built-in memory Mobile phones are becoming more sophisticated.
[0004]
However, as the functions of such mobile phones become more sophisticated, the burden on a CPU (a so-called microprocessor) built in the mobile phone increases. There has been a problem that the electronic components are deteriorated due to the increase and heat generation.
[0005]
17 to 19 are an external perspective view, a sectional view, and a circuit configuration diagram of a conventional camera-equipped mobile phone.
As shown in FIG. 17, the camera-equipped mobile phone is provided with a front side (cover side) case 101, a rear side (case) case 102, an antenna 103, and the like. The unit 101 includes a reception unit 104, a display unit 105, a key operation unit 106, a transmission unit 107, and the like. On the other hand, a camera unit 108, an incoming call speaker 109, a power supply 110, and the like are provided in the housing unit 102 on the back side.
[0006]
A board 111 is provided inside the camera-equipped mobile phone as shown in FIG. 18, and as shown in FIG. 19, a wireless circuit 112 for processing radio waves transmitted and received from the antenna 103 and a mobile phone main body are controlled. The control circuit 113 and the like that are implemented by various electronic components are mounted.
[0007]
In such a mobile phone, a received radio wave is processed by a control circuit 113 via a radio circuit 112 as shown in FIG. The vibration motor 114 is operated to notify the user, and information on the called party is displayed on the display unit 106. Therefore, if the user wants to talk, the user operates the key operation unit 106 to start talking. While the voice is reproduced by the receiver 104, the reply from the other party is input by the transmitter 107, processed by the control circuit 113, converted to radio waves via the wireless circuit 112, and transmitted to the other party by the antenna 103. Sent.
[0008]
Regarding the operation of the camera, an image captured by the camera unit 108 is displayed on the display unit 105 via the control circuit 113. The user operates the displayed image with the key operation unit 106 to store the image in the built-in memory 115, or to output the image from the control circuit 113 to the wireless circuit 112 using the data communication function of the mobile phone, and to output the radio wave. It can be converted and transmitted to the other party through the antenna 103.
[0009]
As described above, in conventional general mobile phones including a camera-equipped mobile phone, the housing is reduced in thickness and size, and electronic components incorporated in the housing are efficiently arranged and densely packed. ing. Therefore, in general, the gap between the electronic components of high density is narrow, and the height and shape of the electronic components often vary.
[0010]
[Problems to be solved by the invention]
As described above, usually, in the conventional mobile phone, electronic components having different heights and shapes are arranged in a high-density state inside the housing, but there is a drawback that air passage is deteriorated. . However, in a conventional general mobile phone, the amount of heat generated by the electronic components is insignificant, and the deterioration of the electronic components due to heat generation is small, and the load on the electronic components is reduced by cooling by natural cooling.
[0011]
However, in a sophisticated mobile phone such as a camera-equipped mobile phone, the load on the CPU increases, and the amount of heat generated increases due to an increase in power consumption. For this reason, the generated heat tends to be hardly diffused, and if the heat stays inside the housing, the electronic component is not cooled, and the heat generated by the electronic component itself deteriorates the electronic component. It has occurred.
[0012]
In view of the above problems, an object of the present invention is to provide a mobile phone device with a vibration motor for incoming calls that can radiate heat around an electronic component that has become hot and cool it. .
Still another object of the present invention is to provide a mobile telephone device characterized in that a cooling function can be configured at low cost without adding a dedicated cooling fan motor.
[0013]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a mobile phone device of the present invention is a mobile phone device including a vibration motor for incoming calls that notifies an incoming call by vibrating a housing,
The vibrating motor for incoming calls is arranged near an electronic component having a high temperature provided inside the housing of the portable telephone device.
[0014]
In the present invention, as a method for cooling an electronic component that is heated to a high temperature, a property is used that a thermal molecule is easily separated from the heating element by applying vibration to the heating element. By placing the electronic component near the electronic component, vibration can be applied to the electronic component, and heat can be dispersed around the electronic component to cool it.
[0015]
Further, the mobile phone device of the present invention is a mobile phone device provided with a vibration motor for incoming calls for notifying an incoming call by vibrating the housing,
A sensor for detecting a temperature rise of an electronic component provided inside the housing of the mobile phone device,
When the temperature of the electronic component rises above a specified value, the vibration motor for incoming call is vibrated to add vibration to the electronic component, so that heat is diffused to the surroundings.
[0016]
In the present invention, as a method for cooling an electronic component that is heated to a high temperature, a property is used that a thermal molecule is easily separated from the heating element by applying vibration to the heating element. When a sensor detects that the electronic component has become high temperature by being placed near the component, vibration can be applied to the electronic component, and heat can be dispersed around the electronic component to cool it.
[0017]
Further, the mobile phone device of the present invention is a mobile phone device provided with a vibration motor for incoming calls for notifying an incoming call by vibrating the housing,
A metal fitting made of a shape memory alloy that is deformed at a temperature higher than a specified temperature is attached to a high-temperature electronic component provided inside the housing of the mobile phone device,
When the fitting is deformed by the heat of the electronic component that has been heated to a specified temperature or more, the fitting is brought into contact with the incoming vibration motor to transmit the vibration of the vibration motor.
[0018]
According to this configuration, the vibration from the incoming vibration motor can be easily transmitted to the electronic component, and the heat from the electronic component is easily diffused.
[0019]
Further, the mobile phone device of the present invention is a mobile phone device provided with a vibration motor for incoming calls for notifying an incoming call by vibrating the housing,
While the housing of the vibration motor is formed in a substantially cylindrical shape or a substantially rectangular tube shape,
A weight for vibration generation provided at the tip of the vibration motor,
A cooling fin provided on the weight side for cooling the electronic component by rotating / blowing by operating a vibration motor when the electronic component provided inside the housing of the mobile phone device generates heat;
It is characterized by having.
[0020]
With this configuration, it is not necessary to provide a separate cooling fan, so that cost increase can be minimized. Further, since there is no need to provide a dedicated cooling fan, it is possible to cope with downsizing of the housing.
[0021]
Further, the portable telephone device of the present invention is characterized in that the end of the vibration motor has a shape having both weights and cooling fins.
[0022]
With this configuration, the overall length of the vibration motor can be reduced.
[0023]
Further, the portable telephone device of the present invention is characterized in that a cooling fin to be attached to the vibration motor is provided at a position opposite to a position where a weight of the vibration motor is attached.
[0024]
With this configuration, the required radius can be reduced because the operating radius of the weight due to the swinging motion of the weight can be reduced, and a vibration motor with a cooling fan that is well balanced because the weight side is not heavy can be provided.
[0025]
Further, the portable telephone device of the present invention is characterized in that the housing shape of the vibration motor on the side where the cooling fin is attached is tapered.
[0026]
According to this configuration, the flow of air passing around the vibration motor can be improved, and the cooling efficiency can be increased accordingly.
[0027]
Further, in the mobile phone device of the present invention, the vibration motor is disposed near the electronic component that generates heat, and at the upper side inside the housing of the mobile phone device with respect to the electronic component that generates heat when the mobile phone device is used. Place in the corresponding position,
It is characterized in that the cooling fin is configured to rotate in a direction that sucks air toward the drive motor.
[0028]
With this configuration, the electronic components can be efficiently cooled by rotating the cooling fins in a direction to remove heat.
[0029]
In addition, the mobile phone device of the present invention is arranged in a position corresponding to a lower portion inside the housing of the mobile phone device, in the vicinity of the electronic component that generates heat of the vibration motor, and when the mobile phone device is used,
In the vicinity of the vibration motor, and provided an opening through which air enters from the lower part of the housing of the mobile phone device,
An inlet through which outside air is sucked, and an opening through which air passes in an upper portion of the housing opposite to a lower portion of the housing near the heat-generating component is provided,
It is characterized in that air is exhausted from the heat-generating electronic component.
[0030]
With this configuration, air can be efficiently sucked, and low-temperature air can be directly blown to the electronic components to be applied to the electronic components. Can be turned.
[0031]
Further, the mobile phone device of the present invention is a mobile phone device provided with a vibration motor for incoming calls for notifying an incoming call by vibrating the housing,
The housing of the vibration motor is formed in a substantially disk shape,
A fin is provided on the motor shaft.
[0032]
According to this configuration, the cooling fins (wings) are provided on the shaft of the vibration motor, so that air can be directly or indirectly blown to the high-temperature electronic components. The heat of the disused electronic component can be diffused and cooled.
[0033]
Further, the portable telephone device of the present invention is characterized in that fins are provided so as to face the surface of the electronic component that generates heat.
[0034]
With this configuration, it is possible to enhance the cooling function of cooling the electronic component by directly blowing air from near the electronic component.
[0035]
Further, the mobile phone device of the present invention is a mobile phone device provided with a vibration motor for incoming calls for notifying an incoming call by vibrating the housing,
The housing of the vibration motor is formed in a substantially disk shape,
The housing of the vibration motor is formed of metal,
It is characterized in that the housing body of the vibration motor is mounted on the surface of electronic components that generate heat and used as a heat conducting member.
[0036]
With this configuration, the vibration motor itself can be used as a heat conduction path, and a cooling function of directly conducting heat of the electronic component and releasing the heat to the outside can be provided in addition to the cooling effect by vibration.
[0037]
Further, the portable telephone device of the present invention is characterized in that a heat conductive sheet is attached to a bottom surface of the housing and attached to a top surface of the electronic component.
[0038]
With this configuration, similarly, the vibration motor itself can be used as a heat conduction path, and the heat of the electronic component can be directly conducted and released to the outside.
[0039]
Further, the cellular phone device of the present invention is configured such that a cushioning member for preventing resonance between the electronic component and the housing, which is attached to the housing and vibrated, is attached between the electronic component and the housing,
A heat conductive cushion is used as the cushion material for preventing resonance.
[0040]
With this configuration, it is possible to prevent the occurrence of unnecessary resonance phenomena, and at the same time, the vibration motor itself can be used as a heat conduction path, and the cooling function of directly conducting the heat of the electronic component and releasing it to the outside is achieved by vibration. It can be provided in addition to the cooling effect.
[0041]
In addition, the mobile phone device of the present invention includes a circuit that calculates the temperature rise speed of the heat-generating component by using a sensor that can detect a temperature rise and a built-in timer,
Providing a circuit that can change the motor rotation speed of the vibration motor,
The rotation speed of the cooling fan is changed in accordance with the temperature rise speed.
[0042]
With this configuration, when the temperature rise rate is large, the cooling fins can be quickly rotated to perform strong cooling.
[0043]
Further, the mobile phone device of the present invention includes a camera in the mobile phone device,
Provide an exhaust port at the top of the housing where the heated air is discharged,
The exhaust port is disposed at a position where heated air discharged from the exhaust port does not cross the front of the lens.
[0044]
With this configuration, it is possible to prevent the warm air discharged from the exhaust port from crossing the front of the camera lens and fluctuating the image displayed on the display unit due to the warm air.
[0045]
Further, the mobile phone device of the present invention includes a camera in the mobile phone device, and a slide switch for operating the camera,
When the switch knob of the slide switch is operated to the ON side, the intake port and the exhaust port are opened, and when the switch knob is operated to the OFF side, the intake port and the exhaust port are closed.
[0046]
With this configuration, it is possible to prevent intrusion of dust, dust, water, and the like from the intake port and the exhaust port when not normally used.
[0047]
Further, the mobile phone device of the present invention includes a camera in the mobile phone device, and has a slide shutter that slides and uses a camera lens cover when shooting with the camera,
The exhaust port and the intake port are configured to appear on the surface of the housing when the shutter is opened.
[0048]
With this configuration, similarly, when not normally used, it is possible to prevent dust, dust, water, and the like from entering from the intake port and the exhaust port.
[0049]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[First Embodiment]
FIG. 1 is an external view of a camera-equipped mobile phone. FIG. 2 is an external sectional view of the camera-equipped mobile phone as viewed from the back. FIG. 3 is a block diagram showing an electrical configuration of the camera-equipped mobile phone.
[0050]
FIGS. 1 to 3 show a camera-equipped mobile phone according to a first embodiment of the present invention. The camera-equipped mobile phone has a front (cover) housing 2 forming a surface of a housing 1. A receiving unit 21, a display unit 22, a key operation unit 23 including a camera switch, and a transmitting unit 24 are arranged, and a camera unit 31, a speaker unit ( A speaker sound hole) 32 and a power supply 33 are provided. In addition, the code | symbol 11 in a figure shows an antenna.
[0051]
A printed circuit board 4 is provided inside the housing 1. On the printed circuit board 4, a wireless circuit 41, a control circuit 46 having a CPU (Central Processing Unit) 42, and electronic components to be heated A temperature sensor 43 for detecting an increase in temperature of the camera, a memory 44 for storing a camera image, a vibration motor 45 for incoming calls, and the like are mounted.
[0052]
An image captured by the camera unit 31 is displayed on the display unit 22. The CPU 42 of the built-in control circuit 46 performs high-speed arithmetic processing so that the captured image is displayed on the display unit 22. I have.
[0053]
The camera unit 31 is controlled by the control circuit 46. By pressing a camera photographing button arranged on the key operation unit 23, a photographed image is captured and displayed on the display unit 22.
[0054]
The memory 44 stores an image captured by the mobile phone so that the image is displayed on the display unit 22 as needed.
[0055]
Next, the cooling operation principle of the mobile phone according to the first embodiment of the present invention will be described.
Normally, for example, when a still image or a moving image is displayed continuously, a load is applied to the CPU 42 of the control circuit 42, and current consumption in the CPU 42 increases. As a result, heat is generated from the CPU 42, the power supply IC, and the like.
[0056]
On the other hand, generally, various electronic components are mounted at high density inside the housing 1 of the mobile phone, and many components are present, which hinders the flow of air. As described above, since the flow of air is small inside the housing 1 of the mobile phone, the heat generated by the CPU 42 that has generated heat tends to stagnate in the CPU 42 itself.
[0057]
By the way, as a method of removing heat from the heat-generating object, there is known a phenomenon in which vibrations are applied to the heat-generating body to diffuse thermal molecules from the heat-generating body.
Therefore, in the first embodiment of the present invention, in order to utilize this phenomenon, attention is paid to the incoming vibration motor 45 provided in the mobile phone, and the temperature sensor 43 capable of detecting that the CPU 42 has risen above the specified temperature. When the temperature of the CPU 42 rises above the specified temperature, the incoming vibration motor 45 is operated also at the time of an incoming call to apply vibration to the CPU 42, thereby diffusing thermal molecules to lower the temperature of the CPU 42. It is configured.
[0058]
Further, since the cooling effect is more effective as the vibration applied to the heating element is larger, by placing the incoming vibration motor near the CPU 42 that generates heat, a stronger vibration is applied and thermal molecules are easily diffused from the CPU 42. Have been.
[0059]
[Second embodiment]
Hereinafter, a second embodiment of the present invention will be described with reference to FIG. In this embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof will not be repeated.
FIG. 4 is a cutaway perspective view of the camera-equipped mobile phone according to the second embodiment when viewed from the rear side. In this embodiment, the mobile phone is mounted on a printed circuit board 4 provided inside the housing 1. The CPU 42 has a structure in which a metal 42A for heat conduction and vibration transmission formed of a shape memory alloy that is deformed when the temperature exceeds a specified temperature is integrally provided.
[0060]
When the CPU 42 generates heat, the CPU 42 conducts heat to the metal fitting 42A, and the metal fitting 42A is deformed by thermal expansion and comes into contact with and comes into contact with the vibration motor 45. As a result, since the vibration from the vibration motor 45 connected to the metal fitting 42A is directly transmitted to the CPU 42, the CPU 42 itself also vibrates. Thereby, the heat generated in the CPU 42 is easily diffused according to the same principle as that described in the first embodiment.
[0061]
In this embodiment, the vibration motor 45 and the CPU 42 can be separated by the metal fitting 42A. When the CPU 42 does not normally generate heat, the CPU 42 does not vibrate unnecessarily, so that the dispersion of the vibration intensity can be prevented. Can also be obtained.
[0062]
[Third Embodiment]
Hereinafter, a third embodiment of the present invention will be described with reference to FIG. In this embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof will not be repeated.
FIG. 5 is a cutaway perspective view of the camera-equipped mobile phone according to the third embodiment when viewed from the rear side, and FIG. 6 is an enlarged view of a cylindrical incoming call vibration motor 45 incorporated in the camera-equipped mobile phone. It is shown.
[0063]
As shown in FIG. 6, the camera-equipped mobile phone according to this embodiment includes a cylindrical incoming vibration motor 45 inside the housing 1, and a tip end of the cylindrical incoming vibration motor 45 is like a flywheel. A weight 45A and a cooling fin 45B for imparting a function and generating vibration are provided.
[0064]
As described above, the cylindrical incoming vibration motor 45 is provided with the cooling fins (wings) 45B for generating cooling air at the tip of the weight 45A, and is disposed directly or in the vicinity of the CPU 42 which is a heat-generating component. The CPU 42 is cooled by indirectly blowing air.
[0065]
In particular, the incoming vibration motor 45 with the cooling fins is disposed below the CPU 42 when the housing 1 is upright, which is a state in which the casing 1 is normally used, so that the vibration motor 45 is provided from around or below the incoming vibration motor 45. The CPU 42 supplies the cooled air to the CPU 42 for cooling, and sends the wind from below so that the heated and lightened air can easily rise, so that the air inside the housing 1 can flow easily. Is configured.
[0066]
In the mobile phone according to the third embodiment, the outside air is supplied from the vicinity of the incoming vibration motor 45 with the cooling fin disposed at the lower portion of the housing 1 through a gap (not shown) of the housing 1. It is possible to cool the air by simply circulating the air inside 1 or discharging the air from the gaps in the housing 1. However, as shown in FIG. 5, an air inlet 1A for taking in outside air and an air outlet 1B for discharging hot air are further provided. It may be provided.
With such a configuration, the cooling effect inside the housing 1 can be further increased.
[0067]
Further, in the third embodiment, for example, as shown in FIG. 7, a fin 45B may be provided on the weight 45A itself provided in the vibration motor 45. With this configuration, the longitudinal direction of the vibration motor 45 can be shortened.
[0068]
In the vibration motor 45 shown in FIG. 7, since the fins 45B are provided outside the weight 45A, the turning radius at the time of the swinging operation becomes larger when the fins 45B are rotated than when there is no fin 45B. Accordingly, a large space inside the housing 1 is required.
[0069]
Therefore, as shown in FIG. 8, in order to minimize the space required for swinging by the vibration motor 45, in other words, in order to make the thickness of the housing 1 as thin as possible, the weight 45A is used by the vibration motor 45. The cooling fin 45 </ b> B may be attached to the shaft opposite to the position where is attached. Accordingly, it is not necessary to take a large space for swinging the weight, and at the same time, the bias of the weight to the weight 45A can be reduced, and a balanced configuration can be obtained.
[0070]
Further, in the vibration motor of the portable telephone device according to the present invention, as shown in FIG. 9, for example, the housing of the vibration motor 45 on the side where the cooling fins 45B of the vibration motor 45 are attached is tapered. It may be formed. By forming in this way, the flow of air passing around the vibration motor 45 can be improved, and the effect of increasing the cooling efficiency can be obtained.
[0071]
[Fourth Embodiment]
Hereinafter, a fourth embodiment of the present invention will be described with reference to FIG. In this embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof will not be repeated.
FIG. 10 is a cut-away perspective view of the camera-equipped mobile phone according to the fourth embodiment when viewed from the rear side. In the camera-equipped mobile phone of this embodiment, the vibration motor 45 has a housing It is disposed above the CPU 42 when the body 1 is standing up and used as a mobile phone.
[0072]
As described above, when the vibration motor 45 is disposed above the CPU 42, the heated and lightened air rises toward the vibration motor 45, but when the vibration motor 45 is rotated as it is, the rising airflow is pushed back. And the air flow may not go smoothly.
[0073]
Therefore, in this embodiment, in order to solve this, the direction of rotation of the vibration motor 45 is reversed so that air flows toward the rear side of the vibration motor, that is, toward the upper side of the housing 1. The configuration is as follows. The rotation direction of the vibration motor 45 can be controlled by a motor drive circuit, and is configured to be easily realized.
[0074]
Further, the temperature sensor 43 provided near the CPU 42 for detecting a temperature rise of the CPU 42 is arranged on the back surface opposite to the mounting surface of the printed circuit board 4 on which the CPU 42 is mounted. Temperature rise can be detected, and there is an effect that accurate temperature detection can be performed with little influence of a temperature error due to air blowing.
[0075]
[Fifth Embodiment]
Hereinafter, a fifth embodiment of the present invention will be described with reference to FIG. In this embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof will not be repeated.
FIG. 11 is a cutaway perspective view of the camera-equipped mobile phone according to the fifth embodiment as viewed from the rear side. In the camera-equipped mobile phone of this embodiment, the vibration motor 45 is formed of a disk-type vibration motor. A cooling fin 45B is mounted on the shaft of the vibration motor 45. In this embodiment, the housing material of the vibration motor 45 is formed of metal or a member capable of efficiently conducting heat, and is configured to be attached to the top surface of the CPU 42.
[0076]
As described above, by mounting the motor 45 on the CPU 42 and directly discharging the heat generated from the CPU 42 to the outside from the exhaust port 1D, the cooling can be efficiently performed, and the housing material of the vibration motor 45 can be efficiently made of metal or heat. By using a conductive member, heat can be more efficiently diffused from the CPU 42.
[0077]
Moreover, in a state where the temperature of the CPU 42 itself is equal to or lower than the specified value and the vibration motor 45 is not operating, the heat from the CPU 42 is conducted to the housing of the vibration motor 45 so that the heat can be made closer to the outside of the housing 1. Therefore, the effect that the temperature rise is delayed can be obtained.
[0078]
[Sixth Embodiment]
Hereinafter, a sixth embodiment of the present invention will be described with reference to FIG. In this embodiment, the same parts as those in the first and fifth embodiments are denoted by the same reference numerals, and the description thereof will be omitted.
FIG. 12 is a cutaway perspective view of the camera-equipped mobile phone according to the sixth embodiment when viewed from the rear side. In the camera-equipped mobile phone of this embodiment, the cooling fins 45B provided on the vibration motor 45 include Contrary to the fifth embodiment, it is arranged so as to face the CPU 42 side.
[0079]
That is, the vibration motor 45 is fixed to the inner surface side of the housing 1 so that the cooling fins 45 </ b> B mounted on the shaft of the vibration motor 45 face the CPU 42.
[0080]
Therefore, in this embodiment, the CPU 42 can be cooled by detecting the Joule heat generated from the CPU 42 by the temperature sensor 43 and directly applying cooling air to the CPU 42.
[0081]
Further, when the heated air is exhausted to the outside from the exhaust port 1E by the vibration motor 45 with a cooling function, when the heated air passes through the lens surface of the camera unit 31, the image to be captured fluctuates due to the influence of the fluctuating air. There is a possibility that such an adverse effect may occur.
Therefore, in the camera-equipped mobile phone according to this embodiment, by providing the exhaust port 1E at a position away from the camera unit 31 side, it is possible to avoid adversely affecting the image, so that a better image can be captured. The effect can be obtained.
[0082]
[Seventh Embodiment]
Hereinafter, a seventh embodiment of the present invention will be described with reference to FIG. In this embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof will not be repeated.
FIG. 13 is a cutaway perspective view of the camera-equipped mobile phone according to the seventh embodiment when viewed from the rear side. In the camera-equipped mobile phone of this embodiment, the vibration-proof rubber 47 having good thermal conductivity is interposed. The vibration motor 45 is attached to the CPU 42.
[0083]
That is, since both the CPU 42 and the vibration motor 45 are rigid, if the vibration motor 45 is directly attached to the CPU 42, for example, the adhesion may be poor, and the Joule heat or the like cannot be efficiently transmitted to the vibration motor 45. There is.
[0084]
In order to prevent this, each component can be brought into close contact by sandwiching a heat conductive sheet between the vibration motor 45 and the CPU 42, and heat can be efficiently transmitted. Depending on the state of attachment, resonance may occur with the CPU 42.
[0085]
Therefore, in this embodiment, an anti-vibration rubber 47 is attached to the vibration motor 45 as means for improving the adhesion and preventing resonance.
By using the anti-vibration rubber 47 as a heat-conducting cushion material, it is possible to obtain the effect that the generated heat can be more efficiently transmitted to the cooling vibration motor 45, and furthermore, it is possible to combine the components into one. Cost increase can be suppressed. As a means for improving the adhesion and preventing resonance, a heat conductive material such as silicon grease may be used in addition to the vibration isolating rubber of this embodiment.
[0086]
[Eighth Embodiment]
Hereinafter, an eighth embodiment of the present invention will be described with reference to FIG. In this embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof will not be repeated.
FIG. 14 is a cutaway perspective view of the camera-equipped mobile phone according to the eighth embodiment when viewed from the back side. In the camera-equipped mobile phone of this embodiment, the housing 1 is used upright to use the mobile phone. In this state, the air inlet 1F is provided not on the bottom surface of the housing 1 but on the side surface on which the camera operation switch 23A is mounted, and the dustproof sheet 48 is mounted only on the air inlet 1F. On the other hand, the exhaust port 1G is provided on the back surface side of the housing 1 as in the previous embodiments.
[0087]
By the way, in order to cool the inside of the housing 1 efficiently, it is preferable to open the intake port 1F and the exhaust port 1G. However, if the intake port 1F and the exhaust port 1G are always opened, dust, dust, water, and the like enter, causing malfunction and corrosion of electronic components built in the housing 1.
[0088]
Therefore, in this embodiment, the camera operation switch 23A is a slide switch so that the intake port 1F and the exhaust port 1G can be opened only during camera operation.
That is, the camera operation switch 23A is provided with a substantially F-shaped shutter plate 23B, and the shutter plate 23B faces the intake port 1F when the knob of the camera operation switch 23A is operated to the ON side. An opening is provided at the position, and the above-mentioned dust-proof sheet 48 is attached here.
[0089]
Therefore, when the knob of the camera operation switch 23A is operated to the ON side, the shutter plate 23B also moves in the same direction, and the intake port 1F and the exhaust port 1G are opened. On the other hand, when the knob of the camera operation switch 23A is moved to the OFF side by moving the knob in the opposite direction, the shutter plate 23B also moves in the same direction to close the intake port 1F and the exhaust port 1G. Dust and water can be prevented from entering.
[0090]
In this embodiment, the dustproof sheet 48 is attached only to the intake port 1F so that a difference is provided between the air inlet and outlet pressures of the intake port 1F and the exhaust port 1G. Air is easy to come out.
[0091]
[Ninth embodiment]
Hereinafter, a ninth embodiment of the present invention will be described with reference to FIG. In this embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof will not be repeated.
FIG. 15 is a cutaway perspective view of the camera-equipped mobile phone according to the ninth embodiment as viewed from the rear side. In the camera-equipped mobile phone of this embodiment, a shutter capable of opening and closing the camera unit 31 and the exhaust port 1H is provided. 5, and a shutter plate 51 having substantially the same configuration as the shutter plate 23B in the eighth embodiment is integrally provided on the shutter 5.
[0092]
Therefore, at the time of photographing with the camera, by opening the shutter 5, the camera section 31 is exposed to the outer surface of the housing 1, and the intake port 1F and the exhaust port 1H are opened to be in a state of ventilation with the outside air. Thereby, the heated air can be exhausted to the outside of the housing 1 only when the camera is used, so that the intake port 1F and the exhaust port 1H are unnecessarily opened when the camera is not used, and dust, dust, water, and the like enter from these. This can provide an effect of preventing the operation from being performed.
[0093]
[Tenth embodiment]
Hereinafter, a tenth embodiment of the present invention will be described with reference to FIG. In this embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof will not be repeated.
FIG. 16 is a block diagram showing the electrical configuration of the camera-equipped mobile phone according to the tenth embodiment. , An incoming vibration motor 45, a motor control circuit 49 that can change the rotation speed of the vibration motor, and the like.
[0094]
The control circuit 46 includes a built-in timer 46A, and is configured to calculate the temperature rise speed of the heat-generating component based on a detection signal from the temperature sensor 43 that detects heat generation. In the case of a rapid temperature rise, a control signal is output to the motor control circuit 49 to increase the number of revolutions of the vibration motor 45 to increase the cooling. By controlling the number of rotations of the vibration motor 45 to be low, an effect that the vibration motor 45 can be efficiently operated can be obtained.
[0095]
【The invention's effect】
As described above, according to the present invention, an incoming vibration motor generally provided in a mobile phone is used, a cooling fin is provided on a rotating shaft of the vibration motor, and the cooling fin is rotated. It is possible to efficiently cool a heat-generating component in a mobile phone.
[0096]
Furthermore, according to the present invention, it is not necessary to provide a dedicated cooling fan, so that cost increase can be reduced, and use of an extra space is suppressed as much as possible, so that there is no need to enlarge the housing. Is also obtained.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a front appearance of a camera-equipped mobile phone according to a first embodiment of the present invention.
FIG. 2 is a partially cutaway perspective view of the back surface (rear surface) of the camera-equipped mobile phone according to the first embodiment of the present invention.
FIG. 3 is a circuit block diagram showing an electrical configuration of the camera-equipped mobile phone according to the first embodiment of the present invention.
FIG. 4 is a partially cutaway perspective view of a rear surface (rear surface) of a camera-equipped mobile phone according to a second embodiment of the present invention.
FIG. 5 is a partially cutaway perspective view of a back surface (rear surface) of a camera-equipped mobile phone according to a third embodiment of the present invention.
FIG. 6 is an external perspective view showing a cooling fin-attached credit vibration motor provided in a camera-equipped mobile phone according to a third embodiment of the present invention.
FIG. 7 is an external perspective view showing a modified example of the cooling fin-attached credit vibration motor provided in the camera-equipped mobile phone according to the third embodiment of the present invention.
FIG. 8 is an external perspective view showing another modification of the cooling fin-attached credit vibration motor provided in the camera-equipped mobile phone according to the third embodiment of the present invention.
FIG. 9 is an external perspective view showing still another modified example of the cooling fin-attached credit vibration motor provided in the camera-equipped mobile phone according to the third embodiment of the present invention.
FIG. 10 is a partially cutaway perspective view of a back surface (rear surface) of a camera-equipped mobile phone according to a fourth embodiment of the present invention.
FIG. 11 is a partially cutaway perspective view of a back surface (rear surface) of a camera-equipped mobile phone according to a fifth embodiment of the present invention.
FIG. 12 is a partially cutaway perspective view of the back surface (rear surface) of a camera-equipped mobile phone according to a sixth embodiment of the present invention.
FIG. 13 is a partially cutaway perspective view of a back surface (rear surface) of a camera-equipped mobile phone according to a seventh embodiment of the present invention.
FIG. 14 is a partially cutaway perspective view of a back surface (rear surface) of a camera-equipped mobile phone according to an eighth embodiment of the present invention.
FIG. 15 is a partially cutaway perspective view of the back (back) side of a camera-equipped mobile phone according to a ninth embodiment of the present invention.
FIG. 16 is a circuit block diagram showing an electrical configuration of a camera-equipped mobile phone according to a tenth embodiment of the present invention.
FIG. 17 is a perspective view showing the appearance of the front side of a conventional mobile phone.
FIG. 18 is a partially cutaway perspective view of the back side of a conventional mobile phone.
FIG. 19 is a circuit block diagram showing an electric configuration of a conventional mobile phone.
[Explanation of symbols]
1 housing
1A, 1F
Air intake
1B, 1E, 1G, 1H
exhaust port
11 Antenna
2 Front (cover) housing
21 Receiver
22 Display
23 Key operation section
23A camera operation switch
23B Shutter plate
24 Transmitter
3 Back (cover) housing
31 Camera section
32 Speaker part (speaker sound hole)
33 power supply
4 Printed circuit board
41 Wireless circuit
42 CPU (heating electronic parts)
42A (for heat conduction and vibration transmission)
43 Temperature sensor
44 memory
45 Incoming vibration motor
45A weight
45B Cooling fin
46 Control circuit
47 Anti-vibration rubber
48 Dustproof sheet
49 Motor control circuit
5 Shutter
51 Shutter plate

Claims (18)

A mobile phone device including a vibration motor for incoming calls that notifies an incoming call by vibrating a housing,
The portable telephone device, wherein the vibration motor for incoming call is arranged near an electronic component which becomes high temperature and is provided inside the casing of the portable telephone device. A mobile phone device including a vibration motor for incoming calls that notifies an incoming call by vibrating a housing,
A sensor for detecting a temperature rise of an electronic component provided inside the housing of the mobile phone device,
A mobile phone characterized in that when the temperature of the electronic component rises above a specified value, the vibration motor for incoming call is vibrated to add vibration to the electronic component, so that heat is diffused to the surroundings. apparatus. A mobile phone device including a vibration motor for incoming calls that notifies an incoming call by vibrating a housing,
A metal fitting made of a shape memory alloy that is deformed at a temperature higher than a specified temperature is attached to a high-temperature electronic component provided inside the housing of the mobile phone device,
A mobile phone configured to transmit vibration of the vibration motor when the metal fitting is deformed by heat of the electronic component that has been heated to a predetermined temperature or higher, by contacting the metal fitting with the vibration motor for incoming calls. apparatus. A mobile phone device including a vibration motor for incoming calls that notifies an incoming call by vibrating a housing,
While the housing of the vibration motor is formed in a substantially cylindrical shape or a substantially rectangular tube shape,
A weight for vibration generation provided at the tip of the vibration motor,
A mobile fin provided on the weight side for operating the vibration motor when the electronic component provided inside the housing of the mobile phone generates heat to cool the electronic component by rotating and blowing air; Telephone equipment. The mobile phone device according to claim 4, wherein a tip of the vibration motor has a shape having both weights and cooling fins. 5. The mobile phone device according to claim 4, wherein cooling fins to be attached to the vibration motor are provided at positions opposite to positions where weights of the vibration motor are attached. The mobile phone device according to any one of claims 4 to 6, wherein a housing shape of the vibration motor on a side to which the cooling fin is attached is tapered. The vibration motor is disposed in the vicinity of the electronic component that generates heat, and at a position corresponding to an upper side inside the housing of the mobile phone device than the electronic component that generates heat when the mobile phone device is used,
The mobile phone device according to any one of claims 4 to 7, wherein a rotation direction of the cooling fin is configured to rotate in a direction that sucks air toward the drive motor. The vibrating motor is disposed in the vicinity of an electronic component that generates heat, and at the time of use of the mobile phone device, at a position corresponding to a lower portion inside a housing of the mobile phone device,
In the vicinity of the vibration motor, and provided an opening through which air enters from the lower part of the housing of the mobile phone device,
An inlet through which outside air is sucked, and an opening through which air passes in an upper portion of the housing opposite to a lower portion of the housing near the heat-generating component is provided,
The mobile phone device according to any one of claims 4 to 7, wherein air from the heat-generating electronic component is exhausted. A mobile phone device including a vibration motor for incoming calls that notifies an incoming call by vibrating a housing,
The housing of the vibration motor is formed in a substantially disk shape,
A mobile phone device comprising a fin provided on the motor shaft. The mobile phone device according to claim 10, wherein the fin is provided so as to face the surface of the electronic component that generates heat. A mobile phone device including a vibration motor for incoming calls that notifies an incoming call by vibrating a housing,
The housing of the vibration motor is formed in a substantially disk shape,
The housing of the vibration motor is formed of metal,
A portable telephone device wherein a housing body of the vibration motor is attached to a surface of an electronic component that generates heat and used as a heat conducting member. 13. The mobile phone device according to claim 12, wherein a heat conductive sheet is attached to a bottom surface of the housing and attached to a top surface of the electronic component. A cushioning member for preventing resonance between the electronic component and the housing, which is attached to the housing and vibrated, is attached between the electronic component and the housing,
14. The mobile phone device according to claim 12, wherein a thermal conductive cushion is used as the cushion material for preventing resonance. With a circuit that calculates the temperature rise rate of the heat-generating component with a sensor that can detect temperature rise and a built-in timer,
Providing a circuit that can change the motor rotation speed of the vibration motor,
The mobile phone device according to any one of claims 4 to 14, wherein a rotation speed of the cooling fan is changed according to a temperature rising speed. Equipped with a camera on the mobile phone device,
Provide an exhaust port at the top of the housing where the heated air is discharged,
16. The mobile phone device according to claim 1, wherein the exhaust port is arranged at a position where heated air discharged from the exhaust port does not cross the front of the lens. A camera is provided in the mobile phone device, and a slide switch for operating the camera is provided,
2. The intake port and the exhaust port are opened when the switch knob of the slide switch is operated to the ON side, and the intake port and the exhaust port are closed when the switch knob is operated to the OFF side. 17. The mobile phone device according to any one of claims 16 to 16. With a camera in the mobile phone device, having a slide shutter to slide and use the camera lens cover when shooting with the camera,
17. The portable telephone device according to claim 1, wherein an exhaust port and an intake port appear on a housing surface when the shutter is opened.

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