JP3976130B2 - Terminal device with camera - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a terminal apparatus with a camera capable of reducing spurious radiation. <P>SOLUTION: A camera containing case 40 is configured to have a shield effect, its shaft 41 is pivotally and turnably fitted to bearings 31a, 31b, 32a, 32b of bearing fixtures 31, 32 electrically connected to an earth terminal of printed circuit boards 13, 24 so that the camera containing case 40 is electrically connected to the earth terminal of the printed circuit boards 13, 24 via the shaft 41, and the bearings 31a, 31b, 32a, 32b for earthing. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a terminal device with a camera such as a mobile phone equipped with a camera, a PHS, and a mobile terminal.
[0002]
[Prior art]
In recent years, mobile phones, mobile terminals, and the like that have a camera have been developed and are on the market. This kind of mobile terminal device equipped with a camera can send the video taken by the camera to the communication partner as it is, and the communication partner who has received the shot video can display it as it is or store / save it. It is very convenient.
[0003]
[Problems to be solved by the invention]
However, in this type of mobile terminal device with a camera that is currently used, a camera case that houses the camera is generally formed of resin, like the housing of the mobile terminal device. Therefore, since the shielding effect cannot be obtained in this camera case, there is a problem that relatively large unnecessary radiation is generated from the camera portion when the camera is driven, and various inconveniences are caused to each portion.
[0004]
SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object of the present invention is to provide an excellent camera-equipped terminal device that suppresses unnecessary radiation as much as possible, in other words, has high reliability.
[0005]
[Means for Solving the Problems]
The camera-equipped terminal device according to the present invention is provided with a shaft portion in a camera housing case formed of a shielding material, and the shaft portion is freely rotatable to a bearing electrically connected to the ground terminal of the printed wiring board. In the terminal device with a camera configured to be pivotally attached and electrically connect the camera storage case to the printed wiring board via the shaft portion, the shaft portion of the camera storage case is connected to the shaft portion via a packing. A holder is inserted or fitted, the holder is rotatably inserted or fitted into the bearing, and a ring is fitted to a tip of the shaft portion protruding through the bearing via a washer; The storage case is configured to be electrically connected to the ground terminal of the printed wiring board via the shaft portion, the ring, the washer, and the bearing .
[0006]
With this configuration, the camera stored in the camera storage case is shielded by the camera storage case, and unnecessary radiation due to various signals for driving the camera can be reduced as much as possible.
In the terminal device with a camera according to the present invention, the camera storage case may be made of metal. Thereby, a shielding property can be easily imparted to the camera storage case.
In the camera-equipped terminal device according to the present invention, a holder is inserted or fitted to the shaft portion of the camera storage case via a packing, and the holder is rotatably inserted or fitted into the bearing, and passes through the bearing. A ring is fitted to the tip of the protruding shaft portion via a washer, and the camera storage case is electrically connected to the ground terminal of the printed wiring board via the shaft portion, the ring, the washer, and the bearing. As a result, the camera storage case can be smoothly rotated with an appropriate frictional force around the shaft, and the shaft, ring, It is electrically connected to the ground terminal of the printed wiring board accurately through a washer and a bearing, and can exhibit a shielding effect.
[0007]
Also, the camera-equipped terminal device of the present invention is provided with a shaft portion in a camera storage case formed of a shielding material, and the shaft portion is rotated by a bearing electrically connected to a ground terminal of a printed wiring board. In the terminal device with a camera that is pivotally attached and configured to electrically connect the camera storage case to the printed wiring board via the shaft portion, the first and second casings are rotated. A printed wiring board is accommodated in each of the first and second housings, and the shaft portion of the camera storage case is attached to each bearing electrically connected to each of the printed wiring boards. A ring is fitted through a washer to a tip portion of the shaft portion that is rotatably inserted and protrudes through the shaft portion, and the camera storage case is connected to the shaft portion, the ring portion, the washer, The first and second through the bearing Each ground terminal of each of the body housing has been printed wiring board is characterized by being configured to be electrically connected.
[0008]
With this configuration, the camera stored in the camera storage case is shielded by the camera storage case, and unnecessary radiation due to various signals for driving the camera can be reduced as much as possible.
In the terminal device with a camera according to the present invention, the camera storage case may be made of metal. Thereby, a shielding property can be easily imparted to the camera storage case.
In the camera-equipped terminal device according to the present invention, the first and second casings are pivotally mounted, and the printed wiring boards are accommodated in the first and second casings, respectively. A shaft portion of the camera storage case is rotatably inserted into each of the bearings electrically connected to the plate, and a ring is inserted through a washer at a tip portion of the shaft portion protruding through the shaft portion. The camera housing case is electrically connected to the ground terminal of the printed wiring board respectively housed in the first and second housings via the shaft portion, the ring portion, the washer, and the bearing. You may comprise so that it may connect.
As a result, the camera storage case is electrically connected to the respective printed wiring boards provided in the first and second housings via the shaft portion, ring, washer, and bearing, respectively, and exhibits a more effective shielding effect. Thus, unnecessary radiation due to various signals for driving the camera can be reduced.
[0009]
As described above, according to the invention, since the camera storage case has a shielding effect, the camera stored in the camera storage case is shielded by the camera storage case, and is provided by various signals for driving the camera. It is possible to reduce unnecessary radiation when the camera is driven as much as possible, and as a result, a highly reliable and high quality terminal device with a camera can be realized.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[First Embodiment]
FIG. 1 is a plan view of a camera-equipped terminal device according to a first embodiment of the present invention, FIG. 2 is an exploded perspective view of a main part of the camera-equipped terminal device, and FIG. 3 is a camera used for the camera-equipped terminal device. FIG. 4 is a cross-sectional view showing a state in which the main part of the camera-equipped terminal device is assembled.
[0017]
FIG. 1 shows a foldable mobile phone to which a camera-equipped terminal device according to a first embodiment of the present invention is applied. This foldable mobile phone includes a first casing 1. And the second housing 2, and the first and second housings 1 and 2 are pivotally connected (connected) to each other by a bearing portion 3 constituting a hinge portion. .
[0018]
The first housing 1 is equipped with a display 11 and a handset 12, and the second housing 2 is equipped with a numeric keypad 21, various function keys 22, and a transmitter 23. Has been.
[0019]
As will be described in detail later, the bearing unit 3 shown in FIG. 2 includes a bearing tool 31 and a bearing tool 32 respectively coupled to the first casing 1 and the second casing 12, and the bearing tool 31 and the bearing. The first and second housings 1 and 2 are provided with the bearing tool 31 and the bearing tool 32 as shown in FIG. The bearing cover 20 and the bearing cover 10 that respectively cover the pivot 33 are integrally formed. Further, as shown in FIG. 1, a metal camera housing case 40 housing the camera 4 coaxially with the pivot 33 constituting the bearing portion 3 is rotatably attached to the bearing portion 3. .
[0020]
Next, the structure of the bearing portion 3 and the mounting structure of the camera storage case 40 will be described in more detail with reference to FIGS.
As described above, the bearing portion 3 shown in FIG. 2 includes a bearing tool 31 and a bearing tool 32 that are directly or indirectly coupled to the first and second casings 1 and 2 (not shown), and these parts. A bearing tool 31 and a pivot 33 that pivotally attaches the bearing tool 32 to each other are configured.
[0021]
Among these, as shown in FIG. 2, the bearing tool 31 and the bearing tool 32 are each formed of a metal material, and the first and second housings 1 and 2 (see FIG. 2) by the screws 30a and 30b. The printed wiring board 13 and the printed wiring board 24 housed in the printed wiring board 13 and the printed wiring board 24 are electrically connected to the ground terminals (not shown) of the printed wiring board 13 and the printed wiring board 24 by the screws 30a and 30b. Connected and grounded.
[0022]
The bearing tools 31 and 32 have two bearings 31a and 31b and bearings 32a and 32b, respectively, arranged coaxially. Of these, the pivot shaft 33 is inserted into one of the bearings 31a and 32a, and the shaft portion 41 protruding from one end of the camera storage case 40 is inserted into the other bearing 31b and bearing 32b. .
[0023]
On the other hand, as shown in FIG. 3, the camera storage case 40 is composed of a front case 40a and a back case 40b so that it can be divided into two in the axial direction. A lens hole 43 through which 4a is inserted and inserted is formed. The camera 4 is housed in an internal space formed by the front case 40a and the back case 40b.
[0024]
From the camera 4, the cable 4b is sandwiched between the shaft portions 41a and 41b formed on the front case 40a and the back case 40b, and is drawn out to the tip portions of the shaft portions 41a and 41b. ing. In other words, both cases 15a and 15b are united in a state where the cable 14b is pulled out from the outer periphery, thereby constituting one camera storage case 40.
[0025]
Next, a method for assembling the bearing portion 3 and the camera storage case 40 configured as described above will be described in detail with reference to FIGS.
{Circle around (1)} First, the shaft portion 41 is inserted into the bearings 32a and 32b of the bearing device 32, respectively, and is pivotally mounted. In this case, first, a packing 34 made of rubber or the like is fitted to the shaft portion 41, and then a cylindrical holder 35 having a flange portion 35a and a cut groove 35b is fitted elastically and firmly on the packing 34 side. . Therefore, with such a configuration, the front case 40a and the back case 40b are firmly united at the shaft portion 41.
(2) In this state, the holder 35 and the shaft portion 41 are inserted (or fitted) into the bearing 31b, and further, the bearing 31a so that the tip end side of the shaft portion 41 protruding from the bearing 31b penetrates the bearing 31a. Inserted into.
(3) Next, a washer 36 is fitted to the tip end side of the shaft portion 41 that passes through the bearing 31a and protrudes from the bearing 31a, and further, a fitting groove of the shaft portion 41 protruding from the washer 36. The E ring 37 is fitted and locked to 42.
[0026]
In other words, in the present embodiment, the packing 34 is slightly compressed between the side surface of the camera storage case 40 and the holder 35 with the E-ring 37 fitted and locked. As shown in FIG. 2, the elastic restoring force in the A direction and the B direction is configured to act. Therefore, the camera storage case 40 operates so that it can be smoothly rotated by moderate friction between the holder 35 and the bearing 31b.
[0027]
By the way, in this embodiment, as described above, the camera housing case 40 is formed of a metal material together with the shaft portion 41 to provide a shielding effect. The washer 36 and the E-ring 37 are also made of metal, and the camera storage case 40 is connected to the first, the shaft 41, the E-ring 37, the washer 36, the bearing tool 31 and the bearing tool 32 via the first, The printed wiring board 13 and the printed wiring board 24 housed in the second casings 1 and 2 are electrically connected to the ground terminals, respectively.
[0028]
Therefore, according to the present embodiment, due to the shielding effect by the camera storage case 40 or the like, the unwanted radiation from the camera 4 side caused by this signal is generated regardless of the signal for driving the camera 4. It can be reduced as much as possible.
That is, in general, when a CCD camera is used as the camera 4, a clock signal of several hundreds KHz to several tens of MHz is required for driving the CCD camera, and this clock signal causes relatively large unnecessary radiation when driving the camera. However, according to the present embodiment, the unnecessary radiation can be reduced as much as possible due to the shielding property of the camera storage case 40 and the like.
[0029]
Next, as a result of conducting a comparative experiment for examining the occurrence of unnecessary radiation in the camera-equipped terminal device according to this embodiment and the conventional camera-equipped terminal device, the following knowledge was obtained.
That is, FIG. 8 and FIG. 9 show the occurrence of unnecessary radiation when the present embodiment and the conventional camera-equipped terminal device are driven, and FIG. 8 shows the camera-equipped terminal device according to the present embodiment. The state of unwanted radiation is shown, and FIG. 9 shows the state of unwanted radiation in a conventional camera-equipped terminal device.
[0030]
According to the present embodiment shown in FIG. 8, the unnecessary radiation is a maximum of 4.25 db, and in the conventional camera-equipped terminal device, as shown in FIG. 9, a maximum of 16.05 db of unnecessary radiation is generated when the camera is driven. Admitted. As can be easily seen from FIGS. 8 and 9, according to the present embodiment, the unnecessary radiation generated when the camera is driven is greatly improved compared to the conventional case due to the shielding effect of the camera storage case 40 and the like. I understand that.
[0031]
[Second Embodiment]
FIG. 5 is an exploded perspective view of the main part of the camera-equipped terminal device according to the second embodiment of the present invention, and FIG. 6 is a sectional side view of the main part of the camera-equipped terminal device assembled. In this embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals to avoid redundant description.
In the present embodiment, the casing (not shown) is of an openable / closable type (may be a bar type that is not of the openable / closable type), and a part of the casing (other than the connecting portion of the two casings). Any part) A rotatable camera 4 is provided.
That is, in the present embodiment, unlike the first embodiment, a bearing tool 38 formed of a metal material having a shielding property is used as a bearing tool constituting the main part of the bearing portion. A plurality of bearings are not formed on the tool 38, and only one bearing 38a is formed. Then, the shaft portion 41 of the camera storage case 40 is inserted into the bearing 38a of the bearing tool 38 in a state where the packing 34 and the holder 35 are fitted, and the E-ring 37 is fitted and locked by covering the washer 36. I am doing so.
[0032]
Therefore, also in this embodiment, the metal camera housing case 40 is provided with a housing (not shown) via each metal member, that is, the shaft portion 41, the E ring 37, the washer 36, and the bearing 38a. 2) is electrically connected to the ground terminal of the printed wiring board 50 housed therein, and is surely grounded. Therefore, unnecessary radiation during driving of the camera is minimized as in the first embodiment. Can be reduced.
[0033]
In this embodiment, since the bearing tool 38 is dedicated to the bearing of the camera storage case 40 that does not serve as a bearing of the housing and has a rotation function, this embodiment follows the mounting position of the camera storage case. In any type of terminal device, whether it is a foldable type or a stick type, a rotational camera can be attached by arbitrarily setting an installation position in the housing.
[0034]
As described above, in both the first embodiment and the second embodiment, the camera 4 is shielded by the metal camera storage case 40, and unnecessary radiation when driving the camera is minimized. Can do.
In the first and second embodiments, as described above, the bearings 31, 32, 38, the camera storage case 40, etc. are each formed of metal, but are formed of synthetic resin and formed on the outer surface. Metal plating or other conductive layers may be formed.
[0035]
In the first and second embodiments, as the washer 36 and the E ring 37, a flat plate is simply cut into a donut shape or an E ring shape, but as shown in FIG. It may be configured.
That is, one or both of the washer 36 and the E ring 37, for example, in the case of the washer 36, on the side surface facing the bearing 32b or the side surface facing the E ring 37, and in the case of the E ring 37, for example. A plurality of hemispherical or other convex portions 36 a and convex portions 37 a are appropriately formed on the side surface facing the washer 36, and the convex portions 36 a and 37 a allow one of the washer 36 and the E ring 37 or You may comprise so that an appropriate elastic repulsive force may arise in both.
[0036]
If comprised in this way, the camera storage case 40 can be pivoted so that it can rotate further smoothly, and the electrical connection to the bearing tools 31 and 32 of the camera storage case 40 can also be made more reliable.
[0037]
In both the first and second embodiments, the present invention is applied to a foldable mobile phone. However, the present invention can also be applied to any other mobile terminal device such as a rod-shaped mobile phone.
[0038]
【The invention's effect】
As described above, according to the invention, since the camera storage case has a shielding effect, the camera stored in the camera storage case is shielded by the camera storage case, and is provided by various signals for driving the camera. It is possible to reduce unnecessary radiation when the camera is driven as much as possible, and as a result, a highly reliable and high quality terminal device with a camera can be realized.
In the invention according to claim 1, a holder is inserted or fitted into the shaft portion of the camera storage case via a packing, the holder is rotatably inserted or fitted into the bearing, and passes through the bearing. A ring is fitted to the tip of the protruding shaft portion via a washer, and the camera storage case is electrically connected to the ground terminal of the printed wiring board via the shaft portion, the ring, the washer, and the bearing. As a result, the camera storage case can be smoothly rotated with an appropriate frictional force around the shaft, and the shaft, ring, It is electrically connected to the ground terminal of the printed wiring board accurately through a washer and a bearing, and can exhibit a shielding effect.
Further, in the invention according to claim 2, the first and second housings are pivotally attached, and the printed wiring boards are respectively accommodated in the first and second housings, and the printed wirings thereof. A shaft portion of the camera storage case is rotatably inserted into each of the bearings electrically connected to the plate, and a ring is inserted through a washer at a tip portion of the shaft portion protruding through the shaft portion. The camera housing case is electrically connected to the ground terminal of the printed wiring board respectively housed in the first and second housings via the shaft portion, the ring portion, the washer, and the bearing. You may comprise so that it may connect.
As a result, the camera storage case is electrically connected to the respective printed wiring boards provided in the first and second housings via the shaft portion, ring, washer, and bearing, respectively, and exhibits a more effective shielding effect. Thus, unnecessary radiation due to various signals for driving the camera can be reduced.
[Brief description of the drawings]
FIG. 1 is a plan view of a terminal device with a camera according to a first embodiment of the present invention.
FIG. 2 is an exploded perspective view of a main part of the camera-equipped terminal device.
FIG. 3 is an exploded perspective view of a camera portion used in the camera-equipped mobile terminal device.
FIG. 4 is a cross-sectional view showing a state when the main part of the camera-equipped mobile terminal device is assembled.
FIG. 5 is an exploded perspective view of a main part of a camera-equipped terminal device according to a second embodiment of the present invention.
FIG. 6 is a cross-sectional view showing a state when the main part of the camera-equipped terminal device is assembled.
FIG. 7 is a perspective view showing an example of an E-ring and a washer used in the first and second embodiments of the present invention.
FIG. 8 is a diagram showing an unnecessary radiation output state at the time of driving the camera measured using the camera-equipped terminal device according to the first embodiment of the present invention.
FIG. 9 is a diagram showing an unnecessary radiation output state when driving a camera, measured using a conventional terminal device with a camera.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 1st housing | casing 10 Bearing cover 11 Indicator 12 Receiver 13 Printed wiring board 2 2nd housing | casing 20 Bearing cover 21 Numeric keypad 23 Transmitter 24 Printed wiring board 26a Convex part 3 Bearing part 30a, 30b Screws 31, 32 38 Bearing member 31a, 31b, 32a, 32b, 38a Bearing 33 Pivot 34 Packing 35 Holder 36 Washer 37 E ring 37a Convex part 4 Camera 4a Lens 4b Cable 40 Camera storage case 40a Front case 40b Rear case 40c Lens insertion hole 41 Shaft part 42 Fitting groove 50 Printed wiring board

Claims (2)

A camera housing case made of a shielding material is provided with a shaft portion, and the shaft portion is pivotally attached to a bearing electrically connected to a ground terminal of the printed wiring board, and the camera housing case is mounted. In the terminal device with a camera configured to be electrically connected to the ground terminal to the printed wiring board via the shaft portion,
A holder is inserted or fitted into the shaft portion of the camera storage case via a packing, the holder is rotatably inserted or fitted into the bearing, and the tip of the shaft portion protruding through the bearing fitted ring through a washer, the camera containing case the shaft portion, the ring, the washer, characterized by being configured to be electrically connected to the ground terminal of the printed wiring board via the bearing A terminal device with a camera. A camera housing case made of a shielding material is provided with a shaft portion, and the shaft portion is pivotally attached to a bearing electrically connected to a ground terminal of the printed wiring board, and the camera housing case is mounted. In the terminal device with a camera configured to be electrically connected to the ground terminal to the printed wiring board via the shaft portion,
The first and second housings are pivotally attached to each other, and the printed wiring boards are respectively stored in the first and second housings, and are electrically connected to the printed wiring boards, respectively. A shaft portion of the camera storage case is rotatably inserted into a bearing, a ring is fitted to a tip portion of the shaft portion protruding through the shaft portion via a washer, and the camera storage case is attached to the shaft. parts, the ring portion, the washer, characterized by being configured to connect said via bearings first, each electrically to the ground terminal of the second housing to the printed circuit board housed respectively Terminal device with camera.

Images