JP5249380B2 - Mobile terminal device - Google Patents

Description

  The present invention relates to a mobile terminal device such as a mobile phone having a sub-panel, and more particularly to an improvement in the waterproof structure of the sub-panel.

  In recent years, there is an increasing demand for thinning mobile terminal devices such as mobile phones. In addition, there are many portable terminal devices that can be folded, and the folding type is mainly used for mobile phones.

  The folding mobile phone connects two housings via a connecting portion having a hinge structure. Some folding cellular phones are provided with a large LCD display unit in one housing and a sub display unit that displays time and the like in a closed state.

  Patent Document 1 discloses a mobile terminal device in which a fixed housing and a movable housing are connected via a connecting portion having a hinge structure, and a sub display unit is provided on the movable housing. In the portable terminal device described in Patent Document 1, a frame plate with a double-sided tape having a waterproof function is arranged in a housing, and a metal panel and a transparent panel for a display unit are attached to the frame plate.

JP 2010-130581 A

  However, in the conventional apparatus described in Patent Document 1, it is necessary to provide the sub panel with a sufficient WF (double-sided tape) sticking allowance in order to ensure waterproof performance. Since the device needs to be designed in consideration of the pasting amount of the double-sided tape, the above-described conventional technology restricts the degree of freedom in designing the waterproof portable sub-panel. In particular, the above prior art has a problem that it is difficult to narrow the sub-panel.

  In addition, the display part can be covered with a semi-transparent casing case, but in this case, it is necessary to increase the number of times the casing is overcoated so that light is not transmitted to parts other than the display part. There is a problem that leads to.

  The objective of this invention is providing the portable terminal device which can ensure the waterproof performance of a sub panel part, and suppresses cost, implement | achieving narrowing of a sub panel.

The mobile terminal device of the present invention includes a housing body, a sub-display unit that is housed in the housing body and displays information on a display screen, and is fitted and attached to the housing body, and the position of the display screen A housing case having an opening formed therein, an inner panel that is installed between a back surface of the housing case and the sub display unit and covers the display screen, and one surface is attached to the inner panel. The other surface is attached around the opening on the back surface of the housing case, and is attached to the surface of the housing case with a waterproof double-sided tape that seals a gap between the inner panel and the housing case. A sub-panel that covers the opening; one surface is affixed to the sub-panel, and the other surface is a double-sided tape that is affixed to the surface of the casing and the inner panel ; From The housing case, the housing case is formed with a second opening at the position of the LED, the inner panel covers the LED, condenses the light emitted from the LED, A configuration is adopted in which an LED condensing part that fits into the second opening is formed .

  ADVANTAGE OF THE INVENTION According to this invention, the waterproof performance of a sub panel part can be ensured, and cost can be suppressed, implement | achieving narrowing of a sub panel.

The disassembled perspective view of the housing | casing of the portable terminal device which concerns on one embodiment of this invention The top view of the housing | casing of the portable terminal device which concerns on the said embodiment AA sectional view of FIG. BB sectional view of FIG. Section C enlarged sectional view of FIG. Configuration diagram of a housing case of the mobile terminal device according to the above embodiment Configuration diagram of inner panel of portable terminal device according to above embodiment The figure which shows the state which attached the inner panel and the decorative panel to the housing | casing case of the portable terminal device which concerns on the said embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following description, a folded mobile phone is used as an example of the mobile terminal device.

(Embodiment)
FIG. 1 is an exploded perspective view of a housing of a mobile terminal device according to an embodiment of the present invention. FIG. 2 is a plan view of the casing of the portable terminal device. 3 is a cross-sectional view taken along the line AA in FIG. 2, and FIG. 4 is a cross-sectional view taken along the line BB in FIG. FIG. 5 is an enlarged cross-sectional view of a portion C in FIG.

  6A and 6B are diagrams showing the configuration of the housing case 130, in which FIG. 6A is a plan view thereof, FIG. 6B is a left side view thereof, and FIG. 6C is a right side view thereof. FIG. 6D is a rear view thereof.

  FIG. 7 is a diagram showing the configuration of the inner panel 160, FIG. 7 (a) is a plan view thereof, FIG. 7 (b) is a left side view thereof, FIG. 7 (c) is a right side view thereof, FIG. 7D is a rear view thereof.

  In the mobile terminal device 100, a display unit side body 110 (hereinafter referred to as a case) and a main body side body (not shown) are rotatably connected by a hinge unit 101. Note that a main body side housing (not shown) includes an operation unit having key buttons, a microphone, and the like, and a wireless circuit, a control circuit, an information processing circuit, and the like.

  The housing 110 includes a cabinet (housing body) 120 and a housing case 130 attached to the cabinet 120.

  Inside the cabinet 120, a holder 140 and a sub display unit 150 are accommodated. An inner panel 160 and a decorative panel (sub-panel) 170 are attached to the housing case 130. A dustproof cushion 155 is attached to the inner panel 160. A waterproof double-sided tape 180 is attached between the inner panel 160 and the housing case 130. A double-sided tape 190 is attached between the casing case 130 and the inner panel 160 and the decorative panel 170.

  The cabinet 120 includes a display substrate 121, a liquid crystal display unit (main display unit) 122, and a front side panel 123. The display substrate 121 and the liquid crystal display unit 122 are connected by a flexible substrate (not shown). As shown in FIG. 1, the display substrate 121 is connected to the sub display unit 150 by a flexible substrate 125. Further, the display board 121 is provided with an LED 126 that emits light to notify an incoming call. A plurality of locking claws 127 that lock the housing case 130 to the cabinet 120 are formed on the side surface of the cabinet 120.

  The housing case 130 is an outer case of the housing 110 and is a front side cover of the mobile terminal device 100. The housing case 130 is formed with a recess 131 for fitting the entire surface of the decorative panel 170 without a gap in the thickness direction. A rectangular opening 132 serving as a window for the user to visually recognize the sub display unit 150 is formed in the recess 131 of the housing case 130. A tapered portion 133 that faces a tapered portion 162 of the inner panel 160 described later is formed in a portion from the opening 132 to the back surface 134 of the housing case 130. The housing case 130 has an opening 135 serving as a window for the user to visually recognize the incoming LED unit 165. The housing case 130 is provided with positioning pins 137 with respect to the holder 140 in order to suppress displacement between the sub display unit 150 and the decorative panel 170. The housing case 130 is provided with positioning pins 136 for the inner panel 160. A plurality of locking claws 138 for locking the cabinet 120 are formed on the side surface of the housing case 130.

  The holder 140 surrounds the periphery of the sub display unit 150 and holds the sub display unit 150 in the cabinet 120 by gripping the sub display unit 150 with the claws 141 and 142. A mounting hole 143 into which the positioning pin 137 is inserted is formed in the holder 140.

  The sub display unit 150 is arranged in the cabinet 120 and displays various information such as time on the display screen.

  The dustproof cushion 155 is a rectangular frame shape, is a soft material having a predetermined thickness, and is adhered to the inner panel 160. The dustproof cushion 155 is disposed on the end of the holder 140 and on the outer peripheral end of the sub display unit 150 when the mobile terminal device 100 is assembled. This prevents dust from entering the surface of the sub display unit 150.

  The inner panel 160 is made of a transparent or translucent member, and is attached to the back surface 134 of the housing case 130 so as to cover the opening 132. The inner panel 160 covers the display screen of the sub display unit 150 when the assembly of the mobile terminal device 100 is completed. The inner panel 160 is separate from the sub display unit 150 and the decorative panel 170, and is provided exclusively for waterproofing and dustproofing the sub display unit 150 and the LED 126.

  The inner panel 160 is opposed to the sub display unit 150 and has a rectangular planar part 161 partially projecting from the opening 132 of the housing case 130, and a tapered part 162 that surrounds the planar part 161 and is inclined toward the cabinet 120 side. And a flange portion 163 extending in the outer peripheral direction from the end of the tapered portion 162. In addition, a positioning pin 136 is inserted into the flange portion 163, and an attachment hole 164 for attaching the inner panel 160 to the housing case 130 is formed.

  Further, the inner panel 160 is formed with an incoming LED unit 165 that condenses the light emitted from the LED 126 and displays it on the surface of the housing case 130. The incoming LED unit 165 is formed by integral molding with each part of the inner panel 160. The incoming LED unit 165 is disposed so as to fit into the opening 135 of the housing case 130. Thereby, the waterproof performance of LED is securable.

  The decorative panel 170 is a transparent resin panel or a tempered glass member. The decorative panel 170 may be a colored light-transmitting member. The decorative panel 170 fits into the recess 131 of the housing case 130 without a gap and covers the opening 132 of the housing case 130. The decorative panel 170 is flush with the surface of the housing case 130 after being attached to the recess 131 of the housing case 130 and is integrated with the surface of the housing case 130.

  The waterproof double-sided tape 180 is a soft material having a planar shape substantially the same as the flange portion 163 and having a predetermined thickness, and an adhesive is applied to both sides. One surface of the waterproof double-sided tape 180 is attached to a flange portion 163 that is an outer peripheral portion of the inner panel 160. When the inner panel 160 is attached to the housing case 130, the other surface of the waterproof double-sided tape 180 is attached to the back surface 134 of the housing case 130. Thereby, the space between the housing case 130 and the inner panel 160 is sealed. Since the application area of the waterproof double-sided tape 180 is sufficiently large, waterproof performance can be ensured.

  The double-sided tape 190 is a very thin tape, and an adhesive is applied to both sides. One surface of the double-sided tape 190 is affixed to the back surface of the decorative panel 170, and the other surface is affixed to the bottom surface of the recess 131 on the surface of the housing case 130. The other surface of the double-sided tape 190 is also attached to the flat surface portion 161 of the inner panel 160. Since the waterproof performance is already secured by the waterproof double-sided tape 180, the double-sided tape 190 may be simple. When the decorative panel 170 is sufficiently fixed to the housing case 130 by fitting with the recess 131, the double-sided tape 190 may not be used.

  Next, assembly of the casing 110 of the mobile terminal device 100 configured as described above will be described. It is assumed that the waterproof double-sided tape 180 is previously attached to the inner panel 160 and the double-sided tape 190 is attached to the decorative panel 170 in advance.

  First, the sub display unit 150 is installed in the holder 140 of the cabinet 120, and the sub display unit 150 is attached to the cabinet 120 by holding the sub display unit 150 with the claws 141 and 142.

  Next, the inner panel 160 is attached to the casing case 130 by fitting the positioning pins 136 of the casing case 130 into the mounting holes 164 of the inner panel 160 and affixing the waterproof double-sided tape 180 to the casing case 130. As a result, the space between the housing case 130 and the inner panel 160 is sealed, and water from the opening 132 is prevented.

  Further, the incoming LED portion 165 of the inner panel 160 is fitted into the opening 135 of the housing case 130. Thereby, the inundation from the opening part 135 is prevented. At this time, the tapered portion 162 of the inner panel 160 is disposed to face the tapered portion 133 of the housing case 130. The tapered portion 162 and the tapered portion 133 do not contact each other.

  Next, a dustproof cushion 155 is attached to the surface of the inner panel 160 that faces the sub display unit 150.

  Next, the decorative panel 170 to which the double-sided tape 190 is attached is attached to the recess 131 of the housing case 130. At this time, the double-sided tape 190 is attached to the flat portion 161 of the inner panel 160. Thereby, the decorative panel 170 is fixed to the housing case 130.

  Finally, the positioning pin 137 of the housing case 130 is fitted into the mounting hole 143 of the holder 140, and the housing case 130 is held by the locking claws 127 on the side surface of the cabinet 120, whereby the housing case 130 is assembled to the cabinet 120. .

  Thus, the assembly of the housing 110 is completed. As an assembly procedure, the decorative panel 170 may be first attached to the recess 131 of the housing case 130, and then the inner panel 160 may be attached to the housing case 130.

  FIG. 8 is a view showing a state in which the inner panel 160 and the decorative panel 170 are attached to the housing case 130. FIG. 8A is a plan view thereof, FIG. 8B is a side view thereof, and FIG. 8C is a rear view thereof.

  As shown in FIG. 8A, the incoming LED unit 165 is exposed to the opening 135 of the housing case 130 by attaching the inner panel 160 to the back surface 134 of the housing case 130. Further, as shown in FIG. 8B, after assembly, the decorative panel 170 is flush with the surface of the housing case 130.

  As described in detail above, the mobile terminal device 100 according to the present embodiment includes the sub display unit 150, the inner panel 160 that covers the entire surface of the sub display unit 150, and the rectangular plate that fits into the recess 131 of the housing case 130. The decorative panel 170, the waterproof double-sided tape 180 for attaching the flange portion 163 of the inner panel 160 and the surrounding back surface of the opening 132 of the housing case 130, the surface of the inner panel 160, and the back surface of the decorative panel 170 A double-sided tape 190 to be attached.

  With this configuration, since the gap between the housing case 130 and the inner panel 160 is sealed with the waterproof double-sided tape 180 having a large sticking area, waterproof performance can be ensured. In addition, the mobile terminal device 100 can reduce the apparent width of the decorative panel 170 (the width on the surface), and can reduce the width of the decorative panel 170. In addition, a design with a degree of freedom can be realized in the decorative panel 170.

  In addition, the inner panel 160 is made of transparent or translucent parts, and also serves as the incoming LED unit 165, so that the number of parts and the number of assembly steps can be reduced. Since the inner panel 160 also serves as waterproofing of the LED 126, waterproof management points can be reduced by collectively waterproofing portions that need waterproofing.

  Furthermore, in the mobile terminal device 100 of the present embodiment, the device for reducing the thickness of the entire mobile terminal device 100 and ensuring the required strength of the inner panel 160 is devised. Hereinafter, this point will be described in detail.

  In the mobile terminal device 100, the back surface of the inner panel 160 that overlaps the sub display unit 150 in a plan view (a surface facing the flat unit 161) needs to ensure a predetermined distance from the sub display unit 150. . If the inner panel 160 is a simple flat plate, when the entire mobile terminal device 100 is thinned, the inner panel 160 cannot be sufficiently thick, and the strength of the inner panel 160 is insufficient.

  Therefore, in the present embodiment, the flat portion 161 portion of the inner panel 160 is projected into the opening 132 of the housing case 130. Thereby, since the flat part 161 can be given sufficient thickness, even if it makes the whole portable terminal device 100 thin, the intensity | strength of the inner panel 160 is securable.

  Further, the flange portion 163 and the waterproof double-sided tape 180 of the inner panel 160 enter a gap between the housing case 130 and the holder 140. Therefore, the thickness of the portion communicating with the flange portion 163 becomes very thin simply by forming the opening 132 in the housing case 130. Such a sudden difference in wall thickness leads to formation defects.

  Therefore, in the present embodiment, the tapered portion 133 is formed in the housing case 130, and the tapered portion 162 is formed in the inner panel 160. Thereby, since the sudden thickness difference can be eliminated in the inner panel 160, the rigidity of the inner panel 160 can be increased. Further, by forming the tapered portion 133 in the housing case 130, it is possible to prevent molding defects in the molding process of the housing case 130.

  In the present embodiment, the inner panel 160 is stacked in the thickness direction of the holder 140 between the back surface of the flange portion 163 of the inner panel 160 and the holder 140. Thus, the flange portion 163 is stretched against the pressure from the liquid crystal display portion 122, and the strength of the housing 110 can be improved.

  The above description is an illustration of a preferred embodiment of the present invention, and the scope of the present invention is not limited to this.

  In the above embodiment, a folding mobile phone has been described as an example of a mobile terminal device. However, the present invention is not limited to a mobile phone, and is not limited to a mobile information terminal such as a PDA (Personal Digital Assistants), a personal computer, or a combined device thereof, Furthermore, the present invention can also be applied to portable devices such as MP3 players and HDD players.

  In the above embodiment, the names of the mobile terminal device and the mobile phone are used. However, this is for convenience of explanation, and may be a mobile terminal, an electronic device, a sub-panel waterproof structure, or the like.

  Furthermore, in the present invention, there are no limitations on the types, materials, shapes, and the like of each part constituting the mobile terminal device, for example, the casing, the inner panel, and the casing case. In addition, the case is generally claw-stopped, but in the present invention, the method for attaching the case is not limited.

  The portable terminal device according to the present invention can ensure the waterproof performance of the sub-panel portion by attaching an inner panel different from the sub-panel from the back of the housing. Accordingly, the present invention is suitable for application to various portable terminal devices such as mobile phones that require a waterproof function and electronic devices.

DESCRIPTION OF SYMBOLS 100 Portable terminal device 110 Housing | casing 120 Cabinet 130 Housing | casing case 132,135 Opening part 133,162 Taper part 140 Holder 150 Sub display part 155 Dust-proof cushion 160 Inner panel 163 Flange part 165 Incoming LED part 170 Cosmetic panel (sub panel)
180 Waterproof double-sided tape 190 Double-sided tape

Claims (3)

A housing body;
A sub display unit housed in the housing body and displaying information on a display screen;
A housing case that is fitted and attached to the housing body, and an opening is formed at the position of the display screen;
An inner panel that is installed between the rear surface of the housing case and the sub display unit and covers the display screen;
Waterproof double-sided tape with one surface affixed to the inner panel and the other surface affixed around the opening on the back surface of the housing case to seal the gap between the inner panel and the housing case When,
A sub-panel attached to the surface of the housing case and covering the opening;
Double-sided tape with one surface affixed to the sub-panel and the other surface affixed to the surface of the housing and the inner panel;
LEDs that are housed in the housing body and emit light;
With
The housing case is formed with a second opening at the position of the LED,
The inner panel is formed with an LED condensing portion that covers the LED, condenses light emitted from the LED, and fits into the second opening.
Mobile terminal device.   The portable terminal device according to claim 1, wherein the inner panel is a transparent or translucent component.   The portable terminal device according to claim 1, wherein the sub-panel is a transparent or colored light-transmitting component.

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