JP2007142802A - Portable device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology of improving durability of a fixed state of a connection terminal to a circuit board. <P>SOLUTION: The mobile apparatus includes: cases (3, 4); the circuit board 5 arranged inside the cases (3, 4) and mounted with electronic components; a shield member 6 for covering at least part of the circuit board 5; and the connection terminal 7 electrically connected to the circuit board 5 and part of which is deposited in a way of being exposed to the outside of the cases (3, 4), and the connection terminal 7 is fixed to the shield member 6. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a mobile device such as a mobile phone.

  Conventionally, there are mobile devices such as mobile phones. For example, a mobile phone is configured by housing electronic components such as a circuit board, a battery (secondary battery), an operation button, and an antenna in a casing that is shaped so as to be easily carried. The circuit board is formed with a communication circuit for communicating with the base station, a storage circuit for storing various information, a charging circuit for charging the battery, a control circuit for controlling the overall operation, and the like. In addition, a connection terminal for connecting the charger to the charging circuit is provided in the mobile phone case in a state where the connection terminal is partially exposed from the case, and the connection terminal is provided on the charger. By connecting the power supply terminal, the power output from the charger is supplied to the battery via the charging circuit.

As an attachment structure of the connection terminal provided in such a portable device, for example, there are those shown in Patent Documents 1 and 2 below. Patent Literature 1 discloses a structure in which a leaf spring having a connection terminal attached to one end is soldered to a circuit board, and a structure in which the connection terminal is incorporated in the housing. A fixing structure is disclosed. And the structure which soldered the connection terminal fixed to the housing | casing to the circuit board like the combination of these structures is implemented conventionally.
Japanese Utility Model Publication No. 4-99673 JP 2000-332869 A

  By the way, unlike a stationary device, a portable device is carried and used by a user. Therefore, an impact may be applied to the housing due to various causes such as dropping. In such a case, when the connection terminal is fixed to the housing and the connection terminal is soldered to the circuit board as in the conventional configuration, the impact applied to the housing is transferred from the housing to the connection terminal. Since it is easily transmitted, the solder between the connection terminal and the circuit board may be damaged, and the connection terminal may be peeled off from the circuit board.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to improve durability in a fixed state between a connection terminal and a circuit board.

  In order to solve the above-described problems, in the present invention, as a first means according to the present invention, a casing, a circuit board disposed inside the casing and mounted with an electronic component, and at least one of the circuit boards are provided. And a connection terminal that is electrically connected to the circuit board and partially exposed to the outside of the housing, and the connection terminal is fixed to the shield member. I was like that.

  As a second means according to the present invention, in the first means, the shield member covers at least a part of one surface of the circuit board, and the connection terminal is the other surface of the circuit board. The circuit board is clamped in cooperation with the shield member while being fixed to the shield member.

  As a third means according to the present invention, in the first or second means, the connection terminal is fixed to the shield member with a screw.

  As a fourth means according to the present invention, in any one of the first to third means, the casing includes a first case member and a second case member that can be joined to each other, and the shield The member and the circuit board are sandwiched between the first case member and the second case member that are joined to each other, and are supported in the casing.

  According to the present invention, since the connection terminal is fixed to the shield member, that is, since the connection terminal is not coupled to the housing as a rigid structure, even if an impact is applied to the housing, the impact is It is not transmitted directly to the connection terminal, and therefore durability of the connection state between the connection terminal and the circuit board can be improved.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view showing an entire mobile phone (mobile device) 100 according to the present embodiment. FIG. 2 is an exploded perspective view showing the configuration of the operation unit side body 1 of the mobile phone 100. FIG. 3 is a perspective view showing an assembled state of a part of the operation unit side body 1. 4 is a cross-sectional view taken along line III-III in FIG. 3 and shows an assembly structure of a part of the operation unit side body 1.

The cellular phone 100 includes an operation unit side main body (housing) 1 provided with operation keys 9 and the like for accepting an operation by a user, and a display unit side main body 101 provided with a display unit 101a and the like. 1, a display unit side body 101 is supported by a hinge part 2 formed at one end of the operation unit side body 1 so as to be rotatable around the II-II axis shown in FIG. The display unit main body 101 is provided with a speaker and the like used for receiving voices in addition to the display unit 101a that displays the telephone number and mail content input by the user.
The operation unit side body 1 first includes a first case member 3 and a second case member 4 that form a casing, a circuit board 5, a shield plate 6 (shield member), and a charging terminal 7 (connection terminal). I have. A secondary battery 8 is provided on the inner surface of the first case member 3. The second case member 4 is provided with operation keys 9 for accepting user operations.

On the circuit board 5, electronic components such as an integrated circuit, a resistor, and a capacitor are mounted, and connection wiring for connecting the components is formed. The circuit board 5 is also provided with a power supply circuit that supplies electric power of the secondary battery 8 to the electronic component and a charging circuit that supplies electric power input from the outside via the charging terminal 7 to the secondary battery 8. Yes.
The shield plate 6 is a plate-like member that blocks electromagnetic waves and the like, and is disposed on the opposite side of the secondary battery 8 with the circuit board 5 interposed therebetween, and covers one side of the circuit board 5 (the surface on the operation key 9 side). The electronic component mounted on the one surface of the circuit board 5 is prevented from being disturbed by electromagnetic waves or the like.
The secondary battery 8 is housed and disposed in a secondary battery housing portion formed on the opposite side of the first case member 3 from the second case member 4 and closes the secondary battery housing portion. The lid member 3 a is attached to the first case member 3. In addition, a shield plate (not shown) is provided at a position facing the circuit board 5 at the support portion that forms the secondary battery housing portion and supports the operation key 9 side of the secondary battery 8. When the first case member 3 and the second case member 4 are assembled, the other surface of the circuit board 5 (the surface on the secondary battery 8 side) is covered and the electrons mounted on the other surface of the circuit board 5 are mounted. The parts are prevented from being disturbed by electromagnetic waves.

5A is a bottom view showing the shape of the charging terminal 7, FIG. 5B is a cross-sectional view taken along the line Va-Va in this bottom view, and the shape of a mounting hole 16 described later formed in the circuit board 5 ( c) It is a top view. The charging terminal 7 will be described in detail with reference to FIG.
The charging terminal 7 is obtained by covering the outer periphery of a resin mold member 10 with a metal plate 11. The charging terminal 7 is soldered to the circuit board 5 so that the metal plate 11 is electrically connected to the charging circuit of the circuit board 5, and the energizing surface 12 that is a part of the metal plate 11 is connected to the first case member 3. It is arranged on the circuit board 5 so as to face the opening 13 formed in FIG.
A screw boss 14 projects from the shield plate 6, and a screw hole 15 is formed in the screw boss 14. A mounting hole 16 is formed through the circuit board 5. On the bottom surface of the molding member 10 of the charging terminal 7 (the lower surface in FIG. 5B), a recess 17 having a size to fit the tip of the screw boss 14 is formed. Is formed. Then, in a state where the mounting hole 16 of the circuit board 5 is inserted into the screw boss 14 and the recess 17 of the charging terminal 7 is fitted, the screw 19 is inserted from the upper surface of the mold member 10 and the hole 18 of the mold member 10 is inserted. Is inserted into the screw hole 15 of the screw boss 14 of the shield plate 6 and fitted into the recess on the upper surface of the mold member 10, whereby the circuit board 5 and the charging terminal 7 are fastened and fixed to the shield plate 6. The In this state, the metal plate 11 of the charging terminal 7 is soldered to the circuit board 5 and electrically connected to the charging circuit.

Furthermore, a convex portion 20 is formed on the bottom surface of the mold member 10 so as to be adjacent to the concave portion 17 so as to protrude from the bottom surface. In the circuit board 5, a notch portion 21 into which the convex portion 20 is fitted is formed continuously with the mounting hole 16.
In a state where the charging terminal 7 and the circuit board 5 are fixed to the shield plate 6, the rotation preventing structure that prevents the charging terminal 7 from rotating with respect to the circuit board 5 by fitting the convex portion 20 into the notch portion 21. Form.

  At a plurality of locations corresponding to each other on the outer periphery of the first case member 3 and the second case member 4, screwing portions 22 are provided to join the first case member 3 and the second case member 4 in a state of facing each other. ing. A built-in antenna 23 is disposed between two screwing portions 22 provided at the end opposite to the end where the hinge portion 2 of the second case member 4 is formed.

  The shield plate 6 and the circuit board 5 and the charging terminal 7 attached and fixed to the shield plate 6 are sandwiched between the first case member 3 and the second case member 4 that are joined in a facing state. . Here, a slight amount of play necessary for assembly is provided between the shield plate 6, the circuit board 5, and the charging terminal 7, and the first case member 3 and the second case member 4.

  In such a configuration, when using the mobile phone device 100, the user performs operations such as input of a telephone number, creation of mail, and transmission / reception with the operation keys 9. The built-in antenna 23 transmits / receives radio waves to / from the base station to enable various communications such as transmission / reception and mail transmission / reception. Charging of the secondary battery 8 is performed by a charger terminal (not shown) coming into contact with the energizing surface 12 through the opening 13.

Here, since the cellular phone device 100 is used not by being stationary but by being carried, there may be a situation where the user accidentally removes it. In such a case, an impact corresponding to the weight of the mobile phone 100 or the dropped height is applied to the casing made of the first case member 3 and the second case member 4 of the mobile phone 100.
However, according to the present embodiment, the circuit board 5 and the charging terminal 7 are not directly fixed to the housing, but are fixed to the shield plate 6. Further, the shield plate 6 and the circuit board 5 are conventional. The first case member 3 and the second case member 4 are not fixed to the first case member 3 or the second case member 4 by, for example, screwing or the like. Since the structure is such that the impact of the housing is transmitted via a member such as a screw or a screw boss that fixes the housing and the circuit board 5 or the charging terminal 7 in a relative position in a conventional manner. In addition, the impact received by the housing due to the slight play provided between the shield plate 6, the circuit board 5, and the charging terminal 7, and the first case member 3 and the second case member 4. It can be absorbed to some extent. Therefore, the circuit board 5 and the charging terminal 7 are not easily subjected to an impact, and therefore, the impact on the soldered portion between the circuit board 5 and the charging terminal 7 can be reduced. The inconvenience that the solder in between is peeled off is less likely to occur. That is, according to the structure of the present embodiment, durability of the fixed state between the charging terminal 7 and the circuit board 5 can be improved.

  Further, according to the present embodiment, the shield plate 6 is disposed so as to cover one surface of the circuit board 5, and the charging terminal 7 is disposed on the other surface of the circuit board 5 and is fixed to the shield plate 6. In addition, since the charging terminal 7 cooperates with the shield plate 6 to sandwich the circuit board 5, the charging terminal 7 and the circuit board 5 can be coupled simultaneously with the coupling of the circuit board 5 and the shield plate 6. This can be done and the coupling structure can be simplified.

  In addition, since the charging terminal 7 is fixed to the screw boss 14 of the shield plate 6 by screws 19, the charging terminal 7 can be firmly fixed to the shield plate 6. In addition, when the charging terminal 7 is fixed to the shield plate 6, the screw boss 14 of the shield plate 6 is inserted into the mounting hole 16 formed in the circuit substrate 5, thereby positioning the shield plate 6 with respect to the circuit substrate 5. And the positioning of the charging terminal 7 with respect to the circuit board 5 can be performed simultaneously.

  Further, conventionally, since the charging terminal 7 is also fixed by using the screwing portion 22 that joins the first case member 3 and the second case member 4, the position of the charging terminal 7 is screwed. According to this embodiment, since the charging terminal 7 is fixed to the shield plate 6, the arrangement of the charging terminal 7 is the position of the screw fixing portion 22 as in the conventional case. Is no longer limited by As a result, the degree of freedom of arrangement of the charging terminal 7 is increased, and other components can be arranged at the position occupied by the charging terminal 7 in the conventional structure. For example, as in the present embodiment, the built-in antenna 23 can be disposed at a position conventionally occupied by the charging terminal 7. Thus, according to the present embodiment, the degree of freedom of arrangement of various components in the housing and on the circuit board 5 can be increased.

  In the present embodiment, the case where the connection terminal is the charging terminal has been described. However, in the implementation, the connection terminal may be any terminal used for connection between the external device and the circuit board, and is not limited to the charging terminal. .

1 is an external perspective view showing an entire portable device according to an embodiment of the present invention. It is a disassembled perspective view which shows the structure of the operation part side main body of the portable apparatus in one Embodiment of this invention. It is a perspective view which shows the assembly state of a part of the operation part side main body of the portable apparatus in one Embodiment of this invention. It is sectional drawing which shows the assembly structure of a part of the operation part side main body of the portable apparatus in one Embodiment of this invention. It is (a) bottom view and (b) sectional drawing which show the shape of the connection terminal in one Embodiment of this invention, and (c) top view which shows the shape of the attachment hole formed in the circuit board.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100 ... Mobile phone (mobile device), 101 ... Display part side main body, 101a ... Display part, 1 ... Operation part side main body (casing), 2 ... Hinge part, 3 ... First case member, 3a ... Cover member, 4 ... Second case member, 5 ... Circuit board, 6 ... Shield plate (shield member), 7 ... Charging terminal (connection terminal), 8 ... Secondary battery, 9 ... Operation key, 10 ... Mold member, 11 ... Metal plate 12 ... Current-carrying surface, 13 ... Opening, 14 ... Screw boss, 15 ... Screw hole, 16 ... Mounting hole, 17 ... Recess, 18 ... Hole, 19 ... Screw, 20 ... Projection, 21 ... Notch, 22 ... Screw fixing part, 23 ... Built-in antenna

Claims (4)

A housing,
A circuit board disposed inside the housing and mounted with electronic components;
A shield member covering at least a part of the circuit board;
A connection terminal provided to be electrically connected to the circuit board and partially exposed to the outside of the housing;
With
The portable device, wherein the connection terminal is fixed to the shield member. The shield member covers at least a part of one surface of the circuit board;
The said connection terminal is arrange | positioned on the other surface of the said circuit board, is fixed to the said shield member, and clamps the said circuit board in cooperation with the said shield member. Mobile devices.   The portable device according to claim 1, wherein the connection terminal is fixed to the shield member with a screw. The casing includes a first case member and a second case member that can be joined to each other, and the shield member and the circuit board are joined to each other. The portable device according to any one of claims 1 to 3, wherein the portable device is supported by the casing.

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