JP2014029376A - Portable terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable terminal capable of reducing possibility of overheating or fire on a secondary battery without causing any problem on a display section while increasing the strength thereof.SOLUTION: A plane-like display section 2 the rear side thereof is covered with a metal bezel 2e is stored in a display section storing part 3a of a front cabinet 3, and at the rear side of the bezel 2e, a rectangular secondary battery 5 is stored. The front cabinet 3 is covered by a rear cabinet 7 from the rear side. A rib 4 is formed vertically to extend to the rear side along the side face of the secondary battery 5 to the front cabinet 3. At the front side of the rear cabinet 7, a metal frame 10 which covers the rear face and the side faces of the secondary battery 5 and encloses the rib 4 is formed.

Description

  The present invention relates to a portable terminal having a display unit and a rechargeable battery.

  In recent years, since mobile terminals that can display a lot of information in an easy-to-view manner are preferred, the display screen size tends to increase. When the display screen size increases, the capacity of the rechargeable battery that covers the power must be increased. When the amount of power used by the rechargeable battery increases, it becomes necessary to take measures against heat dissipation and ignition.

  Thus, it is known to surround a rechargeable battery, which is a heat generation source, in a mobile terminal such as a mobile phone with a heat insulating material such as a special foam layer (for example, Patent Document 1).

International Publication No. 2010/032487 Pamphlet

  In recent years, there has been a demand for miniaturization and thinning of the entire portable terminal, and in order to maintain the same strength as that of a conventional model, it is necessary to further increase the strength of the casing as compared with the conventional model. In addition, although there is a method of using a flame retardant as a countermeasure against ignition, the material is expensive, the fluidity is poor, and it is difficult to deal with thin wall.

  In addition, if the display display becomes larger, the display display itself will bend more easily and will be easily deformed from external pressure. If the structure is such that the display display unit is received by a sheet metal frame in order to prevent deformation, the display will show yellowing, etc. There is a problem that it becomes easy to cause the trouble of.

  The present invention has been made in view of these points, and the object of the present invention is to reduce the influence of heat generation and ignition of the rechargeable battery without causing problems of the display unit while increasing the strength. It is in.

  In order to achieve the above object, in the present invention, the metal frame surrounds the five surfaces of the rectangular plate-shaped rechargeable battery.

Specifically, in the first invention,
A plate-like display section at least on the back side covered with a metal bezel;
A front-side cabinet having a display unit storage unit for storing the display unit;
A rectangular plate-shaped rechargeable battery housed on the back side of the bezel;
A back side cabinet that covers the front side cabinet from the back side;
A rib erected on the front side cabinet so as to extend to the back side along the side surface of the rechargeable battery;
A metal frame is provided in the back side cabinet to cover the back and side surfaces of the rechargeable battery and to hold the rib.

  According to the above configuration, since the six surfaces of the rechargeable battery are surrounded by the metal frame and the metal bezel, the rechargeable battery is surely protected, and even if the rechargeable battery is ignited, the front side cabinet and the back side cabinet Heat is not transmitted directly to the surface, making it difficult to burn. Since the metal frame surrounding the rechargeable battery encloses the ribs of the front cabinet, the strength around the rechargeable battery is improved, and there is no need to provide a sheet metal frame for receiving a display display unit, which was necessary in the past.

In the second invention, in the first invention,
A gap is formed between the back surface of the bezel and the front surface of the rechargeable battery.

  According to the above configuration, the rechargeable battery is floated from the bezel of the display unit and the sheet metal frame is not provided, but the strength member (metal) is secured by fixing the metal frame to the back side cabinet and fixing the rechargeable battery to the metal frame. If the sheet metal is provided on the outside rather than the sheet metal on the inside, the overall strength is improved, and it is possible to reduce screen display defects while increasing the overall strength.

In the third invention, in the first or second invention,
The back side of the back side cabinet is covered with a rear cover,
The metal frame is in close contact with the front surface of the rear cover.

  According to the above configuration, even if a load is applied to the rear cover, the load is supported by the metal frame and further supported by the ribs of the front cabinet, so that the rechargeable battery is protected. In addition, since the metal frame is in close contact with the rear cover, it is easy to radiate heat to the outside.

  As described above, according to the present invention, a rib is erected on the front side cabinet so as to extend to the back side along the side surface of the rechargeable battery, and a metal frame is disposed on the front side of the back side cabinet. By covering the back and side surfaces of the rechargeable battery and holding the ribs, it is possible to reduce the effects of heat generation and ignition of the rechargeable battery without causing problems such as change of the display part while increasing the strength. it can.

FIG. 3 is an enlarged cross-sectional view taken along line II in FIG. 2. It is a front view which shows the portable terminal which concerns on embodiment of this invention. It is the general | schematic disassembled perspective view which looked at the portable terminal from the front side. It is the schematic exploded perspective view which looked at the portable terminal from the back side. It is the perspective view which looked at the front side cabinet from the back side. It is the perspective view which looked at the metal frame from the front side.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  2-4 shows the portable terminal 1 which consists of a portable information terminal of embodiment of this invention, and this portable terminal 1 has the front side cabinet 3 which has the display part accommodating part 3a which accommodates the display part 2. FIG. As shown in FIG. 5, the front cabinet 3 is made of, for example, a rectangular plate-shaped resin molded product. Flat packing pressing portions 3b are formed on the peripheral edge of the front side cabinet 3, and boss portions 3c are discretely arranged on the inner peripheral side thereof. Inside the front-side cabinet 3, a rib 4 is erected in a rectangular shape so as to extend to the back side, and a rectangular region surrounded by the rib 4 is opened.

  As shown in FIGS. 3 and 4, the display unit 2 has a laminated structure including a scattering prevention film 2 a, a touch panel glass 2 b, a touch panel tape 2 c, a display unit 2 d and the like. The back and side surfaces of the display unit 2d are covered with a metal rectangular dish-like bezel 2e. A rectangular plate-shaped rechargeable battery 5 is accommodated in the opening inside the rib 4 on the back side of the bezel 2e. The rib 4 has a notch 4 a into which the protrusion 5 a of the rechargeable battery 5 is inserted. An L-shaped main board 6 is attached to the outside of the rib 4 in the front cabinet 3.

  The front side cabinet 3 is covered with a back side cabinet 7 from the back side, and its back side is covered with a rectangular dish-shaped rear cover 8.

  And the opening 7a for flame | frames is formed in the part corresponding to the rechargeable battery 5 of the back side cabinet 7. FIG. A rectangular plate-shaped metal frame 10 is attached to the periphery of the frame opening 7a via a frame tape 9. The metal frame 10 may be insert-molded in the back side cabinet 7. The metal frame 10 covers the back surface and four side surfaces of the rechargeable battery 5 and is disposed so as to hold the rib 4. That is, as shown in FIG. 1 and FIG. 6, the metal frame 10 has four inner wall portions 11 so as to face the four side surfaces of the rechargeable battery 5, and outside the four inner wall portions 11, The outer wall 12 is erected with a space slightly wider than the thickness of the inner wall 11 and the rib 4. The height of the outer side wall part 12 is slightly lower than the height of the inner side wall part 11, so that the rib 4 is sandwiched between the inner side wall part 11 and the outer side wall part 12. The inner wall 11 and the outer wall 12 are also formed with notches 13 into which the protrusions 5a of the rechargeable battery 5 are fitted. The metal frame 10 is formed with three boss insertion holes 10a through which the boss portions 3c of the front cabinet 3 are inserted.

  A groove 7b for packing is recessed in a rectangular frame shape at a position corresponding to the packing pressing portion 3b in the back side cabinet 7, and a waterproof packing 14 is fitted into the groove 7b for packing. The waterproof packing 14 is pressed against the packing pressing portion 3b when the front side cabinet 3 and the back side cabinet 7 are combined, and exhibits a waterproof effect. The back side cabinet 7 is fixed to the boss 3c of the front side cabinet 3 through a hole 7c with a screw (not shown). The rechargeable battery 5 is fixed to the notch 13 of the metal frame 10 via a protrusion 5a with a screw (not shown).

  As shown in an enlarged view in FIG. 1, a predetermined gap C is formed between the back surface of the bezel 2 e and the front surface of the rechargeable battery 5. The size of the gap C may be set such that the rechargeable battery and the bezel 2e do not come into contact with each other when the rechargeable battery 5 is swollen when subjected to an impact.

  On the other hand, the metal frame 10 does not maintain a predetermined gap on the front surface of the rear cover 8, but is in close contact or almost in close contact (there may be a portion with a slight gap).

  As described above, since the rechargeable battery 5 is surrounded by the metal frame 10 and the bezel 2e, even if the rechargeable battery 5 is ignited, heat is not directly transmitted to the front-side cabinet 3 and the rear cover 8 and is not easily burned out. Further, since the metal frame 10 is in close contact with the rear cover 8, it is easy to radiate heat to the outside.

  Further, since the metal frame 10 surrounding the rechargeable battery 5 holds the rib 4 of the front cabinet 3, when a load is applied to the rear cabinet 7, the metal frame 10 is supported by the metal frame 10 and the rib of the front cabinet 3. 4, the rechargeable battery 5 is reliably protected.

  Then, the rechargeable battery 5 is floated from the bezel 2e of the display display, and the metal frame 10 is provided on the back side, so that the strength on the back side is improved. There is no need. For this reason, it is possible to reduce screen display defects while increasing the overall strength.

  Therefore, according to the portable terminal 1 which concerns on this embodiment, malfunctions, such as yellowing of the display part 2, can be prevented, and the influence of the heat_generation | fever and ignition of the rechargeable battery 5 can be reduced, aiming at strength improvement.

(Other embodiments)
The present invention may be configured as follows with respect to the above embodiment.

  That is, in the said embodiment, although the rib 4, the inner wall part 11, and the outer wall part 12 are interrupted by notches 4a and 13, it is further assumed that they are discretely arranged at portions other than the notches 4a and 13. Also good.

  Moreover, in the said embodiment, although the portable terminal 1 was a portable information terminal, if it has a display part and a rechargeable battery, a mobile telephone, PHS (Personal Handy-phone System), PDA (Personal Digital Assistant), A smart phone, a personal computer, a mobile tool, an electronic dictionary, a calculator, a game machine, etc. may be sufficient.

  In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or a use.

  As described above, the present invention is useful for a portable terminal having a display unit and a rechargeable battery.

DESCRIPTION OF SYMBOLS 1 Mobile terminal 2 Display part 2a Shatter prevention film 2b Touch panel glass 2c Touch panel tape 2d Display unit 2e Bezel 3 Front side cabinet 3a Display part accommodating part 3b Packing press part 3c Boss part 4 Rib 4a Notch 5 Rechargeable battery 5a Protrusion 6 Main board 7 Rear side cabinet 7a Frame opening 7b Packing groove 7c Hole 8 Rear cover 9 Frame tape 10 Metal frame 10a Boss insertion hole 11 Inner side wall 12 Outer side wall 13 Notch 14 Waterproof packing C Clearance

Claims (3)

A plate-like display section at least on the back side covered with a metal bezel;
A front-side cabinet having a display unit storage unit for storing the display unit;
A rectangular plate-shaped rechargeable battery housed on the back side of the bezel;
A back side cabinet that covers the front side cabinet from the back side;
A rib erected on the front side cabinet so as to extend to the back side along the side surface of the rechargeable battery;
A portable terminal comprising: a metal frame that is provided in the back side cabinet and covers a back surface and a side surface of the rechargeable battery and that holds the rib. The mobile terminal according to claim 1,
A portable terminal, wherein a gap is formed between the back surface of the bezel and the front surface of the rechargeable battery. The mobile terminal according to claim 1 or 2,
The back side of the back side cabinet is covered with a rear cover,
The mobile terminal, wherein the metal frame is in close contact with the front surface of the rear cover.

Images