JP2008113332A - Electronic device and charging terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that components are grown in size in order to absorb variation of dimensions among the components and to extend mounting area of electronic components on a substrate regarding a charging terminal of the electronic device such as a cellular phone. <P>SOLUTION: This electronic device is provided with a casing 8, a substrate 3 on which at least a path for supplying power to the electronic components is formed, a second substrate 3a connected to the substrate 3 via a connection member 3b with flexibility, a charger side terminal part which is formed by bending a plate-like conductive member and contacts a terminal part on the charger side which supplies power from an external power source and a spring part 2a which holds the second substrate 3a so as to sandwich it using elastic force to electrically connect the second substrate 3a and the charging terminal 2 with a fixing part to be positioned and fixed to the casing 8. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an electronic device such as a mobile phone, and more particularly to a charging terminal for stably charging an electronic device.

  Patent Document 1 discloses a connection device for electrically connecting a contact of an electronic device and a substrate in a battery. According to Patent Document 1, this connection device is provided with a first connection part that holds and holds a device-side contact in an opening of a battery housing, and is integrally provided with the first connection part. A second connecting portion is provided for electrically connecting the device-side contact and the substrate by sandwiching the substrate by elastic force.

JP 2002-124234 A

  Further, Patent Document 2 discloses a built-in antenna provided so that a plane portion forms a predetermined angle with respect to a printed circuit board. According to Patent Document 2, the built-in antenna includes a contact terminal portion that contacts the printed circuit board by an elastic force and electrically connects the built-in antenna and the printed circuit board.

JP 2002-246935 A

  By the way, as for patent document 1 and patent document 2, the member (the 2nd connection part of patent document 1, the contact terminal part of patent document 2) which has both elastic force is made to contact | abut to a board | substrate, and electrical connection is obtained. However, in order to absorb the dimensional variation between the parts of the terminal and ensure the contact reliability, it is necessary to increase the size of the terminal. In addition, since members such as those described in Patent Documents 1 and 2 are in contact with the mounting surface side of the substrate to obtain electrical continuity, the area where electronic components can be mounted on the substrate is reduced, and the product can be downsized. It is a problem in planning.

  An electronic device according to the present invention is made to solve the above-described problems, and a substrate and a substrate provided in the housing and provided with a path for supplying power to at least the electronic component. And a second substrate connected to the substrate via a flexible connecting member, and a plate-like conductive member, and formed on the conductive member. The charger side terminal portion that contacts the terminal portion on the charger side that supplies power from an external power source, and holds the second substrate so as to be sandwiched by elastic force, and the charger side terminal portion and the second substrate are electrically connected And a charging terminal provided with a fixing portion for positioning and fixing to the housing.

  The charging terminal according to the present invention is made to solve the above-described problems, and is formed by bending a plate-like conductive member, and is provided on the conductive member. The charger side terminal portion that contacts the charger side terminal portion that supplies power from the external power source is separated from the first board on which the electronic component is mounted, and is connected via a flexible connection member The second board is held so as to be sandwiched using elastic force, and includes a spring part that electrically connects the charger side terminal part and the second board, and a fixing part for positioning and fixing to the housing. Is.

  An electronic device according to the present invention is connected to a housing, a substrate provided in the housing and provided with a path for supplying power to at least an electronic component, and the substrate through a flexible connecting member. The second board and a charging member formed by bending a plate-like conductive member and in contact with a terminal portion on the charger side, which is provided on the conductive member and supplies power from an external power source The battery-side terminal part and the second board are held so as to be sandwiched using elastic force, and the charger-side terminal part and the second board are electrically connected to each other, and the fixing part for positioning and fixing to the housing Thus, the charging terminal can be miniaturized, the mounting area of the electronic component on the board can be increased, and the terminal can be miniaturized.

  The charging terminal according to the present invention is formed by bending a plate-like conductive member, and is in contact with a terminal portion on the charger side that is provided on the conductive member and supplies power from an external power source. The charger side terminal portion and the first board on which electronic components are mounted are separated and held so as to sandwich the second board connected via a flexible connecting member using elastic force, Since it has a spring part that electrically connects the charger side terminal part and the second substrate and a fixing part for positioning and fixing to the housing, the effect that the shape of the charging terminal can be reduced in size is provided. Play.

Embodiment 1 FIG.
FIG. 1 is an external perspective view showing an external appearance of a mobile phone. In FIG. 1, a charging terminal 2 for connecting to an external device such as a charger is provided on the bottom surface of a mobile phone 1 and is electrically connected to a connection connector on the external device side, so that the battery pack of the mobile phone is charged. Is done. FIG. 2 is an exploded perspective view illustrating a state in which the charging terminal and the substrate are connected. FIG. 3 is a cross-sectional view showing a state where the charging terminal and the substrate are connected and assembled to the housing. In FIG. 2, the charging terminal 2 is inserted into a spring 2a sandwiching a second substrate 3a, which will be described later, and a terminal fixing portion 4b of the frame 4, and the fixing portion 2b holding the second substrate 3a is replaced by a plate-like conductive member. It is formed by bending. The contact portion of the charging terminal 2 is subjected to gold plating to improve contact reliability.

  The second substrate 3 a is divided from the substrate 3. The second substrate 3a and the substrate 3 are connected by a flexible connection substrate 3b. Since the flexible connection substrate 3b has flexibility, the second substrate 3a can be assembled with the substrate 3 bent at an arbitrary angle. When a terminal plating portion is provided on the second substrate 3a to directly connect to an external device, the plating thickness cannot be sufficiently secured, so there is a problem that the contact reliability is inferior. Can be improved by fixing the second substrate 3 a using the metal charging terminal 2. As shown in FIG. 3, the frame 4 fixes and holds the substrate 3, and fixes the second substrate 3 a with the charging terminal 2 in a state of being bent 90 degrees with respect to the substrate 3.

  The configuration will be described below with reference to FIGS. The substrate 3 is fixed to the frame 4, and the charging terminal 2 is fixed to the frame 4 so as to hold the second substrate 3a in a state bent 90 degrees. The second substrate 3a is fixed and positioned with the projection 4a of the frame 4 as the contact surface. The spring 2a of the charging terminal 2 holds the second substrate 3a so as to sandwich the second substrate 3a, and ensures electrical continuity between the charging terminal 2 and the second substrate 3a. At this time, since the position of the spring 2a of the charging terminal is fixed only by the second substrate 3a, it is not necessary to consider the accumulated tolerance of components, and the spring shape can be reduced. Further, since the spring 2a of the charging terminal 2 is disposed at an angle of 90 degrees with respect to the substrate 3, interference with the component arrangement region on the substrate can be reduced.

  The charging terminal fixing portion 2b is inserted into the terminal fixing portion 4b of the frame 4 and also serves as a fixing component for the second substrate 3a. The charging terminal 2 and the second substrate 3a are configured to receive a contact load of a connection connector of an external device by using a substrate contact surface (projection 4a) as a receiving rib of the frame 4 as a receiving surface. As shown in FIG. 3, when the charging terminal 2 is incorporated in the housing, the shock is absorbed by the cushion 5 provided on the back surface of the case, and rattling is restricted. By configuring as described above, there is no need to consider the cumulative intersection of parts, so there is an effect that the spring shape of the contact portion can be reduced in size. In addition, by dividing the board 3 on which the electronic component is mounted and the second board 3a that is in contact with the charging terminal that receives power from the charger, the area on which the electronic component can be mounted can be increased. The product can be downsized.

  FIG. 9 is a cross-sectional view showing a state where the charging terminal and the substrate are connected and assembled to the housing. FIG. 9 shows a general connection structure between a charging terminal and a substrate, and is shown for convenience of explanation in comparison with the configuration of the present invention. In FIG. 9, the same reference numerals as those in FIG. Reference numeral 10 denotes a charging terminal. The general charging terminal portion structure shown in FIG. 9 is configured to obtain a contact load by fixing the charging terminal 10 having a contact spring to the housing 8 and assembling the substrate 3 to the fixed frame 4. In order to absorb the dimensional variation between components and ensure contact reliability, it is necessary to increase the size of the charging terminal 10. Further, since the contact portion is brought into contact with the mounting surface side of the substrate by using the elastic force of the charging terminal 10, an electronic component cannot be mounted in the region on the substrate surrounded by the circle A in FIG. That is, the mounting area of the electronic component is reduced, and the area of the circle A is reduced, so that there is a problem that the product cannot be reduced in size. The present invention has been made to solve the above-described problems. The size of the spring is reduced, the mounting area of the board is expanded, and the number of parts is increased by the terminal also serving as a board fixing part. There is an effect of configuring without increasing.

  In the above description, the charging terminal spring is electrically connected to the substrate. However, as shown in FIG. 4, a sheet metal terminal plate 6 may be directly mounted on the second substrate 3a. Further, although the charging terminal structure of the mobile phone has been described, it can also be used at a location where the substrate and the substrate are electrically connected. Further, in the above description, the charging terminal spring 2 is electrically connected to the second board 3a. However, as shown in FIG. 5, the charging terminal 7 in which the fixing structure is integrated is mounted on the second board 3a. May be. In the above description, only one terminal spring 2a is connected to the second substrate 3a. However, as shown in FIG. 6, a charging terminal 9 provided with a plurality of contact springs 9a may be used. In the above description, the charging terminal 2 is fixed in a state of being rotated by 90 degrees with respect to the substrate 3, but may be fixed at an arbitrary angle as shown in FIG. In the above description, the charging terminal 2 is provided on the bottom surface of the mobile phone, but the charging terminal 2 may be disposed at an arbitrary position as shown in FIG. Moreover, it is good also as arbitrary plating specifications instead of giving a gold plating process to the charge terminal 2. FIG.

It is an external appearance perspective view which shows the external appearance of a mobile telephone. It is a disassembled perspective view explaining the state which electrically connects a charging terminal and a board | substrate. It is sectional drawing which shows the state assembled | attached to the housing | casing while connecting a charging terminal and a board | substrate. It is a disassembled perspective view explaining the state which electrically connects a charging terminal and a board | substrate. It is a disassembled perspective view explaining the state which electrically connects a charging terminal and a board | substrate. It is an external appearance perspective view which shows the external appearance of a charging terminal. It is sectional drawing which shows the state assembled | attached to the housing | casing while connecting a charging terminal and a board | substrate. It is an external appearance perspective view which shows the external appearance of a mobile telephone. It is sectional drawing which shows the state assembled | attached to the housing | casing while connecting a charging terminal and a board | substrate.

Explanation of symbols

1 mobile phone, 2 charging terminal, 3 substrate, 4 frame, 5 cushion,
6 terminal board, 7 charging terminal, 8 housing, 9 charging terminal, 10 charging terminal

Claims (2)

A housing,
A substrate provided in the housing and provided with a path for supplying power to at least an electronic component;
A second substrate connected to the substrate via a flexible connecting member;
A battery-side terminal portion that is formed by bending a plate-like conductive member, and that is provided on the conductive member, and that contacts a charger-side terminal portion that supplies power from an external power source, A spring part for holding the second board so as to be sandwiched by elastic force, electrically connecting the charger side terminal part and the second board, and a fixing part for positioning and fixing to the housing An electronic device comprising a charging terminal. A battery-side terminal portion that is formed by bending a plate-shaped conductive member, and is provided on the conductive member, and contacts a charger-side terminal portion that supplies power from an external power source; Holding the second board separated from the first board on which the electronic component is mounted and connected via a flexible connecting member by using an elastic force, A charging terminal, comprising: a spring part for electrically connecting the second substrate; and a fixing part for positioning and fixing to the housing.

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