JP2006179282A - Portable electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the safety of an explosion-proof portable wireless radio in a mixture of a normal portable wireless radio and the explosion-proof portable wireless radio by preventing a battery pack from being wrongly mounted, for instance, preventing a normal battery pack from being mounted in the explosion-proof wireless radio, in relation to an explosion-proof wireless radio. <P>SOLUTION: In this portable electronic apparatus equipped with an electronic apparatus body 1b with a battery pack 2b mounted therein and the detachable battery pack, a fitting recessed part 16 is formed on one side of the electronic apparatus body and the battery pack; a fitting projecting part 19 fittable to the fitting recessed part is formed on the other side of them; a rib 21 is formed at one side of the fitting recessed part and the fitting projecting part; and a cut-out part 18 allowing the rib to be fitted thereto or separated therefrom is formed at the other side of them. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a portable electronic device such as a portable wireless communication device or a cellular phone.

  Portable electronic devices are used in various environments due to their portability, and are required to have performance suitable for the environment. For example, when used in an environment where a flammable solvent is present, explosion-proof properties are required for portable electronic devices.

  A portable electronic device such as a portable wireless communication device uses a detachable and rechargeable battery pack as power supply means. Functions that satisfy explosion-proof performance include a structure in which when sparks are generated, the sparks do not come into contact with the flammable solvent atmosphere, or the battery pack temperature does not rise excessively. It has a different structure from the pack.

  As for the battery pack having an explosion-proof property (hereinafter referred to as an explosion-proof battery pack), Patent Literature 1, Patent Literature 3, or the portable wireless communication device having the explosion-proof property is disclosed in Patent Literature 2. The explosion-proof battery packs shown in these patent documents are premised on being mounted on an explosion-proof portable wireless communication device (explosion-proof portable wireless communication device).

  However, in a situation where a portable wireless communication device (hereinafter referred to as a normal portable wireless communication device) used in a normal environment and an explosion-proof portable wireless communication device are installed together, the normal battery pack is used as an explosion-proof portable wireless communication device. There is a possibility that it will be installed in the machine.

  Conventional battery packs and explosion-proof battery packs will not be installed in an explosion-proof portable wireless communication device or normal portable wireless communication device by mistake or will not function as a battery. Various ideas have been made. For example, the position of the connection terminal of the normal battery pack is different from the position of the connection terminal of the explosion-proof battery pack, and at the same time, the terminal position of the board of the portable wireless communication device to which the battery pack is connected is different between normal use and explosion-proof use. I was letting.

  With such a structure, when a different battery pack is attached to a portable communication device, the battery pack does not operate, and even if a normal battery pack is attached to an explosion-proof portable wireless communication device, generation of sparks, etc. Can be prevented.

  However, in the conventional method, two types of circuit boards have to be developed, and the development cost and the time required for development become long. Also, when dealing with circuit boards, etc., the normal battery pack is attached to the explosion-proof portable wireless communication device, and the normal battery pack having no explosion-proof function is brought into the flammable solvent atmosphere. Invite.

JP-A-8-162078

JP-A-9-107307

Japanese Patent Laid-Open No. 10-92402

  In view of such circumstances, the present invention prevents battery packs from being erroneously attached, for example, prevents normal battery packs from being attached to explosion-proof portable wireless communication devices, and allows the use of normal portable wireless communication devices and explosion-proof portable wireless communication devices. The safety of the explosion-proof portable wireless communication device is improved.

  The present invention relates to a portable electronic device comprising an electronic device main body to which a battery pack is attached and a detachable battery pack, wherein either one of the electronic device main body or the battery pack has a fitting recess, On the other side, a fitting convex portion that can be fitted into the fitting concave portion is formed, and a rib is formed on either the fitting concave portion or the fitting convex portion, and the rib can be fitted or detached on the other side. The present invention relates to a portable electronic device in which a notch is formed.

  According to the present invention, in a portable electronic device including an electronic device main body to which a battery pack is mounted and a detachable battery pack, a fitting recess is formed in either the electronic device main body or the battery pack. A fitting convex portion that can be fitted into the fitting concave portion is formed on one of the other, a rib is formed on one of the fitting concave portion and the fitting convex portion, and the rib is fitted on the other. Since the detachable notch is formed, an excellent effect of avoiding a problem caused by erroneous mounting of the battery pack is exhibited.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  In the present invention, the normal portable wireless communication device and the explosion-proof portable wireless communication device have substantially the same shape of the basic communication device body and the battery pack.

  First, an explosion-proof portable wireless communication device will be described with reference to FIGS.

  In the figure, reference numeral 1a denotes an explosion-proof radio main body, and 2a denotes an explosion-proof battery pack.

  On the front of the explosion-proof radio main unit 1a, an operation unit 4 including a display unit 3, a dial key, a function selection key, a transmission unit, and a reception unit (not shown) are provided. A storage portion 6 for mounting a battery pack surrounded by a peripheral wall 5 is recessed on the back surface of the wireless device main body 1a. The bottom 5a of the peripheral wall 5 is formed with a fitting recess 7 projecting inward, and the fitting recess 7 has a plate-like recess 9 parallel to the battery pack mounting surface 8 of the storage portion 6. Yes.

  A contact 11 that is in electrical contact with the explosion-proof battery pack 2 a is provided at a portion adjacent to the fitting recess 7. Further, a lock claw 12 for locking the explosion-proof battery pack 2a when the explosion-proof battery pack 2a is mounted is provided on the upper portion of the housing portion 6 on the back surface of the explosion-proof radio main body 1a. .

  The explosion-proof battery pack 2 a has a convex portion 13 that is accommodated in the accommodating portion 6, and a peripheral edge 13 a that contacts the upper surface of the peripheral wall 5 is formed around the convex portion 13. From the lower surface, a fitting convex portion 14 projects downward. The fitting convex portion 14 has a flat plate shape parallel to the mounting surface of the convex portion 13, and preferably has a tapered shape in which the plate thickness decreases toward the tip, and is fitted into the fitting concave portion 7. It is possible. An engagement hole (not shown) for engaging the lock claw 12 is formed at the upper end of the convex portion 13, and a charging contact 15 is provided on the lower surface of the explosion-proof battery pack 2a. .

  A case where the explosion-proof battery pack 2a is attached to and detached from the explosion-proof wireless main body 1a in the explosion-proof portable wireless communication device will be described with reference to FIG.

  When the explosion-proof battery pack 2 a is mounted, the convex portion 13 is fitted into the storage portion 6 in a state where the fitting convex portion 14 is fitted into the fitting concave portion 7. The lock claw 12 is slid and engaged with the engagement hole (not shown) in a state where the convex portion 13 is completely fitted into the storage portion 6. The explosion-proof battery pack 2 a is attached to the explosion-proof radio main body 1 a through the lock claw 12 and the fitting recess 7. When removing the explosion-proof battery pack 2a, the above procedure is reversed.

  With reference to FIGS. 6 to 10 and with reference to FIGS. 1 and 2, the normal portable wireless communication device will be described.

  The normal portable wireless communication device is the same as the explosion-proof portable wireless communication device except for the fitting concave portion 7 and the fitting convex portion 14 in both the normal wireless device main body 1b and the normal battery pack 2b. 6 to 10, the same components as those shown in FIGS. 1 to 5 are denoted by the same reference numerals.

  A fitting recess 16 is formed in the bottom portion 5 a of the peripheral wall 5 that forms the storage portion 6. The shape of the fitting concave portion 16 and the concave portion 17 included in the fitting concave portion 16 is the same as that of the fitting concave portion 7 and the concave portion 9 described above. A notch 18 is formed in the.

  A fitting projection 19 is provided on the lower surface of the projection 13 of the normal battery pack 2b so as to project downward. The fitting projection 19 has the same shape as the fitting projection 14. A rib 21 is formed between the fitting projection 19 and the peripheral edge 13a at a required position of the fitting projection 19 in the center in the figure. The rib 21 can be inserted into and removed from the notch 18.

  The case where the normal battery pack 2b is attached to and detached from the normal radio main body 1b in the normal portable radio communication device will be described with reference to FIG.

  The fitting convex portion 19 is fitted into the fitting concave portion 16. The rib 21 is inserted into the notch 18 at the same time when the fitting concave portion 16 of the fitting convex portion 19 is fitted, and the fitting convex portion 19 fits into the concave portion 17 without any trouble. The convex portion 13 is fitted to the storage portion 6 in a state where the fitting convex portion 19 is fitted to the concave portion 17. The lock claw 12 is slid and engaged with the engagement hole (not shown) in a state where the convex portion 13 is completely fitted into the storage portion 6. The normal battery pack 2 b is attached to the normal radio main body 1 b through the lock claw 12 and the fitting recess 16.

  Next, referring to FIG. 10, the case where the normal battery pack 2b is to be attached to the explosion-proof portable wireless communication device will be described.

  As described above, since the notch 18 is not formed in the fitting recess 7 of the explosion-proof radio main body 1a, the fitting protrusion 19 of the normal battery pack 2b is fitted into the fitting recess 7. Even if it tries, the said rib 21 interferes with the side wall of the said fitting recessed part 7, and the said fitting convex part 19 cannot be fitted to the said fitting recessed part 7, The said battery pack 2b for normal use is used for the said explosion-proof. It cannot be attached to the wireless device main body 1a.

  The explosion-proof battery pack 2a can be attached to the normal radio main body 1b. However, even if the explosion-proof battery pack 2a is attached to the normal radio main body 1b in a normal use state, there is a problem. It will never be.

  The casings of the explosion-proof radio main body 1a and the normal radio main body 1b are molded products of synthetic resin. The molding die is a combination mold, and the fitting recess 7 and the fitting recess 16 are partially formed. If it is a mold, the main body part can share the same mold, and the mold production cost can be greatly reduced.

  The same applies to the explosion-proof battery pack 2a and the normal battery pack 2b. If the fitting projection 14 and the fitting projection 19 are partial types, the main body of the battery pack 2 has the same type. It can be shared, and the mold production cost can be greatly reduced.

  A notch 18a is formed in the fitting recess 7 of the explosion-proof radio main body 1a, and a notch 18b is formed in the fitting recess 16 of the normal radio main body 1b. The positions of the notches 18a and 18b are asymmetrical. If the rib 21a is formed on the explosion-proof battery pack 2a and the rib 21b is formed on the normal battery pack 2b so as to correspond to the notches 18a and 18b, the positions of the notches 18a and 18b and the ribs 21a are formed. Since the battery pack 2 can be mounted only when the position of the rib 21b matches, only the explosion-proof battery pack 2a is attached to the normal radio main body 1b. Only the normal battery pack 2b can be mounted.

  FIG. 11 shows another embodiment, in which a rib 21 is formed in the fitting recess 23 formed in the wireless device main body 1 and a notch 18 is formed in the fitting projection 24 formed in the battery pack 2. It is a thing.

  In the other embodiment, the rib 21 is formed in the fitting recess 23 of the explosion-proof radio main body 1a and the normal radio main body 1b, for example, the fitting protrusion of the explosion-proof battery pack 2a. If the notch 18 is formed in the portion 24 and the notch 18 is not formed in the fitting convex portion 24 of the normal battery pack 2b, the normal battery pack 2b is attached to the explosion-proof radio main body 1a. Cannot be installed.

  Further, the rib 21 is formed in the fitting recess 23 of the explosion-proof radio main body 1a and the normal radio main body 1b, and the positions where the ribs 21 are formed are different from each other. If the position of the notch 18 formed in the pack 2a and the normal battery pack 2b is matched with the position of the rib 21, only the explosion-proof battery pack 2a is provided in the explosion-proof radio main body 1a, and the normal-use battery pack 2b is used. Only the normal battery pack 2b can be attached to the wireless device main body 1b, and erroneous attachment of the battery pack 2 can be prevented.

  Also in this other embodiment, the mold for the radio device body 1 and the battery pack 2 is a combination mold, the fitting recess 23 and the fitting protrusion 24 are partial molds, and the explosion-proof radio is used. When molding the main body 1a, the normal radio main body 1b, the explosion-proof battery pack 2a, and the normal battery pack 2b, the partial molds of the fitting recess 23 and the fitting protrusion 24 are exchanged. For example, the main body can share the same mold, and the mold production cost can be greatly reduced.

  As another embodiment, the rib 21 is formed if the shape of the concave portion 9 of the fitting concave portion 7 is asymmetrical and the shape of the fitting convex portion 14 is matched with the concave portion 9. Even without this, it is possible to prevent erroneous mounting of the battery pack between the explosion-proof radio main body 1a and the normal radio main body 1b and the explosion-proof battery pack 2a and normal battery pack 2b.

  Therefore, only one type of circuit board needs to be developed, and the development cost can be reduced and the time required for development can be shortened.

1 is a perspective view of a radio main body of a portable electronic device showing an embodiment of the present invention. It is a perspective view of the battery pack of the same portable electronic device. It is sectional drawing of the same portable electronic device. It is the front view seen from the mounting surface direction of the battery pack of the same portable electronic device. It is a bottom view of the battery pack of the same portable electronic device. FIG. 3 is a rear view of a normal radio main body in the portable electronic device. FIG. 3 is a side view of a normal battery pack in the portable electronic device. FIG. 4 is a bottom view of a normal battery pack in the portable electronic device. FIG. 6 is a cross-sectional view showing a case where a normal battery pack is attached to a normal radio main body in the portable electronic device. FIG. 5 is a partial cross-sectional view showing a case where a normal battery pack is to be attached to the explosion-proof radio main body in the portable electronic device. It is a fragmentary perspective view which shows other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Radio | wireless machine main body 1a Explosion-proof radio | wireless machine main body 1b Normal radio | wireless machine main body 2 Battery pack 2a Explosion-proof battery pack 2b Normal battery pack 6 Storage part 7 Fitting recessed part 9 Recessed part 14 Fitting convex part 16 Fitted concave part 17 Recessed part 18 Notch 19 Fitting convex part 21 Rib 23 Fitting concave part 24 Fitting convex part

Claims (1)

  In a portable electronic device comprising an electronic device body to which a battery pack is mounted and a detachable battery pack, a fitting recess is formed in either the electronic device body or the battery pack, and the other is A fitting convex portion that can be fitted into the fitting concave portion is formed, a rib is formed in one of the fitting concave portion and the fitting convex portion, and a notch in which the rib can be fitted and detached is formed in either one of the two. A portable electronic device characterized by that.

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