JP4660825B2 - Electronic device and method of storing board in electronic device - Google Patents

Description

  The present invention relates to an electronic device and a method for storing a substrate in the electronic device. In particular, the present invention relates to a cellular phone and a method for storing a substrate in the cellular phone.

  There is a strong demand for downsizing electronic devices such as mobile phones. For example, a mobile phone is composed of a printed wiring board (board) and a case for storing the board. In order to make the case as small as possible, the space inside the case is set to a minimum size that can hold the board. Designed.

  In addition, the multifunctional electronic device needs to include a plurality of external input / output terminals. For example, a substrate such as a mobile phone includes a plurality of external input / output connectors such as an earphone connector and an interface connector. When these connectors are mounted on the board so as not to protrude from the board, as shown in FIG. 8 (a), when connecting a plug such as an earphone connector to the connector, the plug fitting portion (IN) In addition, it is necessary to insert the packing portion (P) of the plug into the case. For this reason, the hole (191, 193) for inserting the connector on the side surface of the case must be enlarged so that the packing part (P) can be inserted. If the hole for inserting the connector is enlarged, it is difficult to make the case thinner and smaller. In addition, the dead space when the plug is not connected is increased, the waterproof and dustproof area is increased, and water and dust easily enter the case, so that the waterproof and dustproof properties are lowered.

  In order to prevent the deterioration of the dustproof and waterproof properties, for example, as shown in FIG. 8B, the connector (113) can be mounted so as to protrude from the substrate. If the protruding portion of the connector (113) is inserted into the connector insertion hole (193) of the case, the plug insertion portion (P) does not need to pass through the connector insertion hole (193). Since only the protruding portion of the connector (113) needs to pass, the connector insertion hole (193) can be made relatively small.

However, when the connectors (113, 114) protruding from the board are mounted on both sides of the board (11), this causes trouble when the board (11) is housed in the case (19). For example, as shown in FIG. 8B, one of the connectors (113) is inserted into the connector insertion hole (193), and then the other connector (114) is inserted into the other connector insertion hole ( 191), when the case (19) is designed to be of a size that can be accommodated by the board (11), the connector (114) and the case (19) collide with each other so that the board (11) ) Cannot be stored in the case (19). Therefore, in order to be able to store the board in the case, it is necessary to have a configuration in which a connector protruding from the board is provided only on one side of the board as in the mobile phone disclosed in Patent Document 1. Alternatively, as shown in FIG. 8A, the connector must be mounted on the board or the case must be enlarged so that the connector does not protrude from the board.
JP-A-2005-39318

  However, if the protruding connector is provided only on one side of the substrate, the number of connectors that can be mounted is limited. If the connector is mounted on the board so that the connector does not protrude from the board, the connector insertion hole becomes large, the waterproofness and dustproofness are lowered, and the case is difficult to downsize. However, if the connectors on both sides protrude from the board, it will hinder the storage of the board in the case, or the case must be enlarged. Therefore, there has been a problem that it is difficult to improve waterproofness and dustproofness in an electronic device provided with a connector, and to reduce the size or increase the number of connectors.

  The present invention has been made in view of the above problems, and is capable of reducing the size while improving waterproofness and dustproofness, or increasing the number of connectors while improving dustproofness and waterproofness. It is another object of the present invention to realize a method for storing a substrate in an electronic device.

In order to achieve the above object, an electronic device according to a first aspect of the present invention includes:
A case in which an opening for inserting a connector is formed on each opposing side surface, and a storage part for storing a board is formed;
A board having a female connector, which is housed in the housing of the case;
A connector inserted into the opening;
A flexible cable having a male connector, connecting the connector and the female connector of the substrate;
A protruding connector mounted so as to protrude from the substrate;
A fixing member for fixing the connector;
With
Each of the openings is formed in the same shape as the cross-sectional shape of the connector and the protruding connector,
The protruding connector is inserted without clearance into one said opening formed in the side surface of the case, by no gaps inserted Rutotomoni the fixed member to the opening formed the connector on the other side surface of the case The substrate is stored in the storage unit in a fixed state.
It is characterized by that.

The substrate storage method in the electronic device according to the second aspect of the present invention includes:
A case in which an opening for inserting a connector is formed on each opposing side surface, and a storage part for storing a board is formed;
A board having a female connector housed in the case;
A connector inserted into the opening;
A flexible cable having a male connector, connecting the connector and the female connector of the substrate;
A protruding connector mounted so as to protrude from the substrate;
A fixing member for fixing the connector;
With
Each of the openings is a method of storing a substrate in an electronic device formed in the same shape as the cross-sectional shape of the connector and the protruding connector,
An insertion step of inserting the protruding connector into the opening formed on one side surface of the case without a gap;
A storage step of storing the substrate in the storage unit;
An insertion step of inserting the connector into the opening formed on the other side surface of the case without a gap in a state where the substrate is stored in the storage portion by the storage step;
Fixing the connector with the fixing member;
It is characterized by providing.

  According to the present invention, there is provided an electronic device that can be reduced in size while improving waterproofness and dustproofness, or an increased number of connectors while improving dustproofness and waterproofness, and a method of storing a board in the electronic device. Can be realized.

  Hereinafter, a mobile phone according to an embodiment of the present invention will be described. FIG. 1 is an overall view of a mobile phone 100 according to the present embodiment. As shown in the figure, the mobile phone 100 includes a lower case 19, an upper case 23, and a display unit 25. As shown in the figure, the lower case 19 accommodates a printed wiring board 11, an intermediate case 15, an operation side substrate 17, and a rubber case 21.

  The printed wiring board 11 is a board on which a conductive pattern based on circuit design is formed of a conductive material on the surface of an electrically insulating board and a plurality of electronic components such as connectors are mounted. The printed wiring board 11 is designed to be at least a storage space 195 of the lower case 19 so that the printed wiring board 11 can be stored in the lower case 19. Of the surfaces provided on the printed wiring board 11, the surface facing the upper case 23 when stored in the mobile phone 100 is the front surface, and the surface facing the lower case 19 is the back surface. Further, the left side when viewed from the surface of the printed wiring board 11 is the left side, and the right side is the right side. The front surface of the printed wiring board 11 is shown in FIG. 2, and the back surface is shown in FIG.

  As shown in FIG. 2, a flexible connector female terminal 111 is mounted on the right side of the surface of the printed wiring board 11. The flexible connector female terminal 111 is a connector into which a later-described flexible connector male terminal 133 is inserted.

  As shown in FIG. 3, an interface connector 113 is mounted on the right side of the back surface of the printed wiring board 11 (as viewed from the back surface). The interface connector 113 is a connector used as an interface jack of the mobile phone 100, is electrically connected to the printed wiring board 11, and a part of the interface connector 113 protrudes from the printed wiring board 11 on the back surface of the printed wiring board 11. It is fixed.

  The earphone connector 13 is a connector used as an earphone jack of the mobile phone 100, and is connected to a flexible cable 131 as shown in FIG. The flexible cable 131 is a flexible cable in which a flexible and conductive member (wiring) is covered with an insulating, flexible resin or the like, and is used for connecting the earphone connector 13 and the printed wiring board 11. . And the flexible cable 131 is a cable of the length which can insert the earphone connector 13 in the opening part 191 for earphones mentioned later. The flexible connector male terminal 133 is a connector to be inserted into the flexible connector female terminal 111. By inserting the flexible connector male terminal 133 into the flexible connector female terminal 111, the earphone connector 13 and the printed wiring board 11 are mechanically and electrically connected. FIG. 4 shows the printed wiring board 11 after the earphone connector 13 is connected. As shown in the figure, the flexible cable 131 can be bent and moved toward the inside so that the earphone connector 13 does not hit the lower case 19. Further, the bent flexible cable 131 can be extended and the earphone connector 13 can be inserted into an earphone opening 191 described later.

  As shown in FIG. 1, the middle case 15 is a plate-like member that is sandwiched between the printed wiring board 11 and the operation side substrate 17. The middle case 15 is fixed to the surface of the printed wiring board 11 with screws or the like. The middle case 15 includes a fixing member 151 (not shown). The fixing member 151 is used for fixing an earphone connector 13 inserted into an earphone opening 191 described later.

  As shown in FIG. 1, the operation side substrate 17 is a substrate disposed immediately below the rubber case 21. The operation side substrate 17 is used to detect pressing of an operation button of the mobile phone 100.

  As shown in FIG. 1, the lower case 19 is a housing for housing the printed wiring board 11, the middle case 15, the operation side substrate 17, and the rubber case 21. In order to reduce the size of the mobile phone 100, the size of the lower case 19 is designed to be a minimum size that can accommodate the printed wiring board 11 and the like. The lower case 19 is formed with a storage portion 195 for storing the printed wiring board 11 and the like, and a plurality of openings corresponding to the number of connectors are formed on the side surface of the lower case 19. In the present embodiment, an earphone opening 191 and an interface opening 193 are formed. The earphone opening 191 is disposed on the right side surface as viewed from the direction in which the rubber case 21 is attached, and the interface opening 193 is disposed on the left side surface. The earphone opening 191 is an opening for inserting the earphone connector 13, and the interface opening 193 is an opening for inserting the interface connector 113. These openings are formed to have the same shape as the cross-sectional shape of the connector to be inserted so that there is no gap when the corresponding connector (13, 113) is inserted.

  The rubber case 21 is a member housed in the lower case 19 and is mounted with operation buttons and the like of the mobile phone 100.

  The upper case 23 is a member attached to the lower case 19 to cover the storage portion 195 and the side surface of the lower case 19 after the members such as the printed wiring board 11 are stored in the lower case 19.

  The display unit 25 includes devices such as an LCD (Liquid Crystal Display) and an organic EL (Electroluminescence), and is a component that displays an operation screen or the like of the mobile phone 100. The display unit 25 is connected to the lower case 19 so as to be foldable or rotatable.

  With the above configuration, these members are housed in the housing portion 195 of the lower case 19 in the order of the printed wiring 11 to which the earphone connector 13 is connected, the middle case 15, the operation side substrate 17, and the rubber case 21. Thereafter, the upper case 23 is attached to the lower case 19, and the display unit 25 is connected to the lower case 19.

  Next, a method for storing the printed wiring board 11 in the mobile phone 100 will be described with reference to FIGS.

  An operator or a robot who assembles the mobile phone 100 connects the earphone connector 13 to the printed wiring board 11, covers the middle case 15 and screws it, and superimposes the operation side substrate 17 on the middle case 15.

  As shown in FIG. 5, the operator or the like bends the flexible cable 131 and brings it into the lower case 19 so that the earphone connector 13 does not hit the lower case 19. Then, the interface connector 113 on the left side of the printed wiring board 11 is inserted into the interface opening 193 of the lower case 19. An operator or the like inserts the interface connector 113 into the interface opening 193 and then stores the printed wiring board 11 in the storage portion 195 of the lower case 19. As shown in the figure, since the earphone connector 13 is moved inward so as not to come into contact with the lower case 19, even if the lower case 19 and the printed wiring board 11 are substantially the same size, the earphone connector 13 is not The printed wiring board 11 can be easily housed without being caught in the lower case 19 and colliding with it.

  Next, as shown in FIG. 6, the operator or the like pushes the earphone connector 13 from the inside to the outside of the lower case 19 and inserts the earphone connector 13 into the earphone opening 191. Then, the worker or the like fixes the inserted earphone connector 13 with the fixing member 151.

  Subsequently, an operator attaches the upper case 23 and connects the display unit 25 to the lower case 19.

  By the above storage method, the printed wiring board 11 is stored in the mobile phone 100, and the mobile phone 100 is assembled to complete the product.

  FIG. 7 shows a cross-sectional view of the A-B plane of FIG. 6 after assembly. As shown in the figure, in the mobile phone 100 according to this embodiment, the earphone connector 13 and the printed wiring board 11 are connected by a flexible cable 131, and the earphone connector 13 is pushed out from the inside of the lower case 19 to open the earphone opening. A portion (earphone jack) that is inserted into 191 and fitted with the earphone plug is exposed to the side surface of the lower case 19. For this reason, the opening part 191 for earphones should just be a magnitude | size which can pass the earphone connector 13 even if the packing part P of an earphone plug does not pass. Therefore, the earphone opening 191 can be drastically reduced, and the mobile phone 100 can be reduced in thickness and size.

  In addition, since the dead space when the plug is not connected is reduced, the waterproof and dustproof area is reduced, and water and dust are less likely to enter the case 19. Accordingly, the dustproof and waterproof properties of the mobile phone 100 are improved.

  Furthermore, since the cellular phone 100 according to the present embodiment can connect connectors to both sides of the printed wiring board 11, it is easy to increase the number of connectors. For this reason, it is easy to cope with the multifunctionalization of mobile phones. Furthermore, since the flexible cable 131 can be bent, it is very easy to store the printed wiring board 11 in the storage portion 195 of the lower case 19, and it is easy to cope with the downsizing of the mobile phone 100.

  In addition, when an impact is applied to the connector portion, for example, when the mobile phone 100 is dropped on the floor, the interface connector 113 fixed to the substrate (11) cannot absorb the impact, and the connector portion or the substrate (11). Is often damaged. On the other hand, since the earphone connector 13 is connected by the flexible cable 131, the impact does not directly propagate to the substrate (11), and the connector portion and the substrate are not easily damaged. Therefore, the mobile phone 100 according to the present invention is excellent in impact resistance.

  In the above-described embodiment, the present invention is applied to a mobile phone. However, the present invention is not limited to a mobile phone, and the present invention is not limited to a mobile phone. The invention can be applied.

  Moreover, in the said embodiment, although only the connector of the one side of the printed wiring board 11 was connected by the flexible cable 131, as shown in FIG. 9, it is good also as a structure which connects a connector of both sides to a board | substrate (11) with a flexible cable. Of course.

1 is an overall view of a mobile phone according to an embodiment of the present invention. It is the surface of the printed wiring board before the earphone connector connection which concerns on embodiment of this invention. It is the back surface of the printed wiring board before the earphone connector connection which concerns on embodiment of this invention. It is the surface of the printed wiring board after the earphone connector connection which concerns on embodiment of this invention. It is a perspective view of the printed wiring board which concerns on embodiment of this invention, a middle case, and the operation side board | substrate. It is a lower case where the earphone connector concerning an embodiment of the present invention was inserted. It is sectional drawing of the mobile telephone which concerns on embodiment of this invention. (A) It is sectional drawing of the mobile telephone made into the structure which does not protrude the connector of both sides from a printed wiring board. (B) It is sectional drawing of the mobile telephone made into the structure which protrudes the connector of both sides from a printed wiring board. It is the surface of the printed wiring board to which the connector of both sides is connected with a flexible cable.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Printed wiring board, 111 ... Female terminal for flexible connectors, 113 ... Interface connector, 13 ... Earphone connector, 131 ... Flexible cable, 133 ... Male terminal for flexible connectors, 15 ... Middle case, 17 ... Operation side board, 19 ... Lower case, 191 ... Earphone opening, 193 ... Interface opening, 195 ... Storage part, 21 ... Rubber case, 23 ... Upper case, 25 ... Display unit, 100 ... Mobile phone

Claims (2)

A case in which an opening for inserting a connector is formed on each opposing side surface, and a storage part for storing a board is formed;
A board having a female connector, which is housed in the housing of the case;
A connector inserted into the opening;
A flexible cable having a male connector, connecting the connector and the female connector of the substrate;
A protruding connector mounted so as to protrude from the substrate;
A fixing member for fixing the connector;
With
Each of the openings is formed in the same shape as the cross-sectional shape of the connector and the protruding connector,
The protruding connector is inserted without clearance into one said opening formed in the side surface of the case, by no gaps inserted Rutotomoni the fixed member to the opening formed the connector on the other side surface of the case The substrate is stored in the storage unit in a fixed state.
An electronic device characterized by that. A case in which an opening for inserting a connector is formed on each opposing side surface, and a storage part for storing a board is formed;
A board having a female connector housed in the case;
A connector inserted into the opening;
A flexible cable having a male connector, connecting the connector and the female connector of the substrate;
A protruding connector mounted so as to protrude from the substrate;
A fixing member for fixing the connector;
With
Each of the openings is a method of storing a substrate in an electronic device formed in the same shape as the cross-sectional shape of the connector and the protruding connector,
An insertion step of inserting the protruding connector into the opening formed on one side surface of the case without a gap;
A storage step of storing the substrate in the storage unit;
An insertion step of inserting the connector into the opening formed on the other side surface of the case without a gap in a state where the substrate is stored in the storage portion by the storage step;
Fixing the connector with the fixing member;
A method for storing a substrate in an electronic device.

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