JP2011233970A - Electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic device capable of solving the problem that a display unit of the electronic device is not sufficiently held and falls off when an adjustment work of the electronic device, which is erected and on which an exterior member is not mounted yet, is performed.SOLUTION: A display unit of an electronic device can be prevented from turning in a second direction opposite to a first direction by the following sequential steps of: placing the display unit on a chassis member; turning the display unit in the first direction; inserting a first tongue portion into a first opening portion; and connecting a flexible wiring board to a connector.

Description

  The present invention relates to an electronic device, and more particularly, to a display unit mounting structure in an electronic device.

  Conventionally, an electronic device having a display unit such as an LCD has a degree of freedom of movement by temporarily holding the display unit in the assembly before assembling the exterior member made of resin or metal, and displays after the exterior member is attached. Some have a floating structure in which the position of the unit is determined.

  In such a floating structure, when the adjustment operation is performed in a posture in which the electronic apparatus is stood in a state where the display unit before the exterior member is attached is temporarily placed, the display unit may float and fall off with a slight impact.

  Therefore, a technique has been proposed in which a ring-shaped rubber bush is attached to the entire outer periphery of the display unit, and is fitted into the main body frame by press-fitting, and the display unit is floatingly supported using elasticity (for example, Patent Documents). 1).

JP 2002-365613 A

  However, in the technique described in Patent Document 1, in a state where the display unit is held only by press fitting with the ring bush to the main body frame portion before the exterior member is attached, the display unit is easily dropped when an impact is applied to the display unit. In order to prevent the dropout, it is necessary to increase the press-fitting amount. As a result, stress is applied to the display unit, which causes display defects such as moire.

  In addition, the increase in the press-in amount causes incomplete press-fitting, that is, the display portion is lifted or tilted, and the gap in the thickness direction between the exterior member and the display unit is increased or non-uniform after the exterior member is assembled. As a result, the appearance quality may deteriorate.

  The present invention has been made in view of the above problems, and the display unit may fall off even if the electronic device is erected and adjusted in a simple structure before the exterior member is attached. The purpose is to provide no electronic equipment.

  In order to achieve the above object, in the electronic device of the present invention, a first tongue piece is formed to extend at least on one end side of the first side, and the second side facing the first side is provided. A display unit in which a flexible wiring board extends from one end side of the side, and the display unit can be rotatably mounted. After the display unit is mounted, the display unit is rotated in a first direction. A chassis member in which a first opening into which the first tongue piece portion is inserted is formed, and a connector to which the flexible wiring board is connected, and the display unit is placed on the chassis member. Then, after rotating the display unit in the first direction and inserting the first tongue piece into the first opening, the flexible wiring board is connected to the connector, thereby the display unit. Is the first The direction, characterized in that prevents rotation in a second direction the opposite direction.

  According to the present invention, it is possible to provide an electronic device in which the display unit does not fall off even if the electronic device is stood up and adjusted in a state before the exterior member is attached.

It is a disassembled perspective view of the digital camera 1 which is an example of the electronic device which implemented this invention. 2 is an exploded perspective view of a main unit H that is a part of the digital camera 1. FIG. 4 is a perspective view illustrating the shape of a liquid crystal display unit 18. FIG. 2 is a perspective view illustrating the shape of a chassis 10. FIG. 2 is a diagram illustrating a state where a liquid crystal display unit is placed on a chassis. FIG. 2 is a diagram illustrating a state in which a liquid crystal display unit is temporarily fixed to a chassis. FIG.

Example 1
FIG. 1 is an exploded perspective view of a digital camera 1 which is an example of an electronic apparatus embodying the present invention.

  FIG. 1 is an exploded perspective view showing a state in which the front cover 2, the rear cover 3, the top cover 4, the bottom cover 5, the side cover 6, the jack cover 8, and the strap attachment member 9 are removed from the digital camera 1. In the state shown in FIG. 1, the battery lid unit 7 is attached to the main unit H.

  FIG. 2 is a perspective view in which the main unit H is further disassembled. A battery housing 11, a battery lid unit 7, and a tripod screw member 12 are coupled to a chassis 10 serving as a chassis member to form a chassis unit 13. Then, the lens unit 14, the strobe unit 15, the main board 16, and the heat sink 17 are attached to the chassis unit 13 from the front side of the digital camera. A connector 16a is mounted on the main board 16.

  On the other hand, the liquid crystal display unit 18 and the operation member 19 are attached to the chassis unit 13 from the back side of the digital camera. Furthermore, the flexible wiring board 20 is attached from the upper surface side of the digital camera.

  FIG. 3 is a perspective view for explaining the shape of the liquid crystal display unit 18.

  FIG. 3A is a perspective view of the liquid crystal display unit 18 viewed from the display surface side, and FIG. 3A is a perspective view of the liquid crystal display unit 18 viewed from the back side.

  The liquid crystal display unit 18 has a rectangular shape, and a first tongue piece 18c is formed to extend on one end side of the first side 18a which is a long side of the rectangle, and is opposed to the first side 18a. A second tongue piece 18d is formed to extend on the other end side of the second side 18b which is a long side of the rectangle. The first tongue piece 18 c and the second tongue piece 18 d are point-symmetric with respect to the center point of the liquid crystal display unit 18.

  An L-shaped flexible wiring board 18 f extends from the short side 18 e of the liquid crystal display unit 18. As shown in FIG. 3B, the flexible wiring board 18 f is folded on the back surface of the liquid crystal display unit 18 and bonded to the back surface of the liquid crystal display unit 18 with a double-sided tape 21. As a result, the flexible wiring board 18 f extends from one end side of the second side 18 b of the liquid crystal display unit 18.

  FIG. 4 is a perspective view for explaining the shape of the chassis 10.

  Four walls 10a to 10d are erected on the chassis 10, and the liquid crystal display unit 18 is placed in a space 10e surrounded by the four walls 10a to 10d. An opening 10f through which the flexible wiring board 18f is inserted is formed in the space 10e. Further, when the liquid crystal display unit 18 is placed in the space 10e in the space 10e of the chassis 10 and then the liquid crystal display unit 18 is rotated clockwise in the first direction, the first tongue piece is provided. A first opening 10g into which the portion 18c is inserted is formed. Similarly, the second tongue piece 18d is inserted into the space 10e when the liquid crystal display unit 18 is rotated clockwise after the liquid crystal display unit 18 is placed in the space 10e. The opening 10h is formed.

  Further, inside the wall portions 10a and 10b of the chassis 10, porons 22a and 22b, which are elastic members having conductivity, are respectively attached.

  FIG. 5 is a diagram illustrating a state where the liquid crystal display unit 18 is placed in the space 10 e of the chassis 10.

  FIG. 5A is a front view showing a state in which the liquid crystal display unit 18 is placed in the space 10 e of the chassis 10. FIG. 5B is an enlarged view of portion A in FIG. 5A, and FIG. 5C is an enlarged view of portion B in FIG. 5A. FIG. 5D is an enlarged view of a portion C in FIG. 5A, and FIG. 5E is an enlarged view of a portion D in FIG.

  When the liquid crystal display unit 18 is placed in the space 10e of the chassis 10, the first tongue piece 18c is in a state where the wall 10a of the chassis 10 and the first side 18a of the liquid crystal display unit 18 are parallel to each other. It will interfere with the wall 10a, and the second tongue piece 18d will interfere with the wall 10b. That is, in a state where the wall 10a of the chassis 10 and the first side 18a of the liquid crystal display unit 18 are parallel, the liquid crystal display unit 18 cannot be placed in the space 10e of the chassis 10. Therefore, as shown in FIG. 5A, the first side 18 a of the liquid crystal display unit 18 is inclined with respect to the wall 10 a of the chassis 10. By tilting the first side 18a of the liquid crystal display unit 18 with respect to the wall 10a of the chassis 10, the first tongue piece 18c does not interfere with the wall 10a, and the second tongue piece 18d also interferes with the wall 10b. No longer. As described above, the first side 18 a of the liquid crystal display unit 18 is inclined with respect to the wall 10 a of the chassis 10, and the liquid crystal display unit 18 is placed in the space 10 e of the chassis 10. At this time, the flexible wiring board 18 f is inserted into the opening 10 f of the chassis 10, and the tip of the flexible wiring board 18 f is guided to the vicinity of the connector 16 a mounted on the main board 16.

  As shown in FIG. 5A, in the state where the first side 18a of the liquid crystal display unit 18 is inclined with respect to the wall 10a of the chassis 10, the first tongue piece 18c as shown in FIG. 5B. Is not inserted into the first opening 10g. Similarly, in the state of FIG. 5A, the second tongue piece 18d is not inserted into the second opening 10h as shown in FIG. 5C.

  As shown in FIG. 5A, by placing the liquid crystal display unit 18 in the space 10 e of the chassis 10, the poron 22 a comes into contact with the approximate center position of the first side 18 a of the liquid crystal display unit 18. 22 b abuts at a substantially central position of the second side 18 b of the liquid crystal display unit 18. Accordingly, the poron 22 a is disposed between the liquid crystal display unit 18 and the chassis 10 at a substantially central position of the first side 18 a of the liquid crystal display unit 18. On the other hand, the poron 22 b is disposed between the liquid crystal display unit 18 and the chassis 10 at a substantially central position of the second side 18 b of the liquid crystal display unit 18.

  In the state shown in FIG. 5A, the poron 22a is deformed as shown in FIG. 5D, and the poron 22b is deformed as shown in FIG. 5E.

  FIG. 6 shows a state in which the liquid crystal display unit 18 is temporarily fixed to the chassis 10 by rotating the liquid crystal display unit 18 clockwise from the state shown in FIG.

  FIG. 6A is a front view showing a state in which the liquid crystal display unit 18 is temporarily fixed in the space 10 e of the chassis 10. FIG. 6B is an enlarged view of portion A in FIG. 6A, and FIG. 6C is an enlarged view of portion B in FIG. 6D is an enlarged view of a portion C in FIG. 6A, and FIG. 6E is an enlarged view of a portion D in FIG. 6A.

  When the liquid crystal display unit 18 is rotated clockwise from the state shown in FIG. 5, the first tongue piece 18c is inserted into the first opening 10g as shown in FIG. As shown in FIG. 6C, the second tongue piece 18d is inserted into the second opening 10h. In the state of FIG. 6, the poron 22a is deformed as shown in FIG. 6 (d), and the poron 22b is deformed as shown in FIG. 6 (e).

  In the state shown in FIG. 6, the tip of the flexible wiring board 18f is inserted into the connector 16a mounted on the main board 16, and the flexible wiring board 18f and the connector 16a are connected.

  The length of the flexible wiring board 18f is determined so that the liquid crystal display unit 18 is in the state shown in FIG. 6 when the tip of the flexible wiring board 18f is inserted into the connector 16a. The flexible wiring board 18f is bonded to the back surface of the liquid crystal display unit 18 with a double-sided tape 21.

  Therefore, by fixing the tip of the flexible wiring board 18f to the connector 16a, the liquid crystal display unit 18 does not rotate from the state shown in FIG. 6 to the state shown in FIG. 5 unless the flexible wiring board 18f is bent. That is, the repulsive force of the flexible wiring board 18f against the deflection prevents the liquid crystal display unit 18 from rotating counterclockwise. That is, the liquid crystal display unit 18 is prevented from rotating in the second direction that is opposite to the first direction.

  Therefore, by connecting the flexible wiring board 18f to the connector 16a after the state shown in FIG. 6, the liquid crystal display unit 18 does not rotate from the state shown in FIG. 6 to the state shown in FIG. The display unit 18 can maintain the state shown in FIG.

  Further, when the tip of the flexible wiring board 18f is inserted into the connector 16a mounted on the main board 16 in the state shown in FIG. 5, the flexible wiring board 18f is connected to the connector 16a in a bent state. At this time, the flexible wiring board 18f applies the force of the arrow F to the liquid crystal display unit 18 in an attempt to eliminate the bent state by the repulsive force of the flexible wiring board 18f.

  At this time, the repulsive force of the flexible wiring board 18f acts in the direction of pushing down the liquid crystal display unit 18 as shown by the arrow F in FIG. In this embodiment, the substantially central position of the first side 18a of the liquid crystal display unit 18 is brought into contact with the wall 10a of the chassis 10 by the poron 22a, and the substantially center of the second side 18b of the liquid crystal display unit 18 is caused by the poron 22b. The position is in contact with the wall 10 b of the chassis 10. Since the position where the repulsive force of the flexible wiring board 18f is applied is outside the porons 22a and 22b, the force by which the flexible wiring board 18f pushes down the liquid crystal display unit 18 acts as a force for rotating the liquid crystal display unit 18 clockwise. To do.

  In the absence of the pollons 22a and 22b, the liquid crystal display unit 18 is slid downward by the repulsive force of the flexible wiring board 18f, and the second tongue piece 18d comes out of the second opening 10h. That is, the approximate center position of the first side 18 a of the liquid crystal display unit 18 contacts the wall 10 a of the chassis 10, and the approximate center position of the second side 18 b of the liquid crystal display unit 18 contacts the wall 10 b of the chassis 10. Thus, the rotation center is defined in the liquid crystal display unit 18. By defining the center of rotation, the force in the direction of pushing down the liquid crystal display unit 18 becomes the force for rotating the liquid crystal display unit 18.

  Furthermore, in this embodiment, the chassis 10 is formed of a conductive metal material. The chassis 10 is electrically connected to the ground pattern serving as the ground potential of the lens unit 14, the strobe unit 15, the main board 16, and the flexible wiring board 20. Moreover, the first sides 18a and the second sides 18b of the liquid crystal display unit 18 can be set to the ground potential because the porons 22a and 22b have conductivity.

  In the digital camera of the present embodiment, the first tongue piece 18c is inserted into the first opening 10g and the second tongue piece 18d is inserted into the second opening 10h by the repulsive force of the flexible wiring board 18f. The inserted state can be maintained.

  As a result, even if the digital camera is stood and the adjustment operation is performed before the rear cover 3 is attached, the liquid crystal display unit 18 is temporarily fixed in the space 10e of the chassis 10 and the liquid crystal display unit 18 is removed from the chassis 10. It will not drop out.

  In the present embodiment, as described above, the poron 22a is disposed between the approximate center position of the first side 18a of the liquid crystal display unit 18 and the wall 10a of the chassis 10, and the second side 18b of the liquid crystal display unit 18 is disposed. The poron 22b is disposed between the substantially central position of the wall 10b and the wall 10b of the chassis 10. Instead of this, even if protrusions are formed at substantially the center positions of the first side 18a and the second side 18b of the liquid crystal display unit 18 and brought into contact with the wall 10a and the wall 10b of the chassis 10, this embodiment. Has the same effect as.

  In addition, a pin is formed on the back side of the center point of the liquid crystal display unit 18, and a hole through which the pin is inserted is formed in the chassis 10, so that the liquid crystal display unit 18 is rotated with respect to the chassis 10. Even if possible, the same effects as the present embodiment can be obtained.

  Further, in the present embodiment, the first tongue piece 18c and the second tongue piece 18d are formed on the long side of the liquid crystal display unit 18, but even the short side of the liquid crystal display unit 18 is different from the present embodiment. The same effect is obtained.

  Further, even if only the first tongue piece portion 18c and the first opening portion 10g are provided without providing the second tongue piece portion 18d and the second opening portion 10h, the same effect as the present embodiment can be obtained. Play.

DESCRIPTION OF SYMBOLS 1 Digital camera 3 Rear cover 10 Chassis 16 Main board 16a Connector 18 Liquid crystal display unit 18c 1st tongue piece part 18d 2nd tongue piece part 18f Flexible wiring board 22a Polon 22b Polon

Claims (5)

A display unit having a first tongue piece extending at least on one end side of the first side and a flexible wiring board extending from one end side of the second side facing the first side When,
The display unit can be rotatably mounted, and after the display unit is mounted, the display unit is rotated in a first direction so that the first tongue piece portion is inserted. A chassis member in which an opening is formed;
A connector to which the flexible wiring board is connected;
The display unit is placed on the chassis member, the display unit is rotated in the first direction, and the first tongue piece is inserted into the first opening. An electronic apparatus characterized in that the display unit is prevented from rotating in a second direction opposite to the first direction by being connected to a connector. A second tongue piece extending from the other end of the second side of the display unit;
The chassis member is formed with a second opening into which the second tongue piece portion is inserted by rotating the display unit in the first direction after the display unit is placed. The electronic device according to claim 1. An elastic member disposed between the display unit and the chassis member;
The elastic member has electrical conductivity, and the elastic member is disposed between the display unit and the chassis member at a substantially central position of the first side and the second side of the display unit. The electronic device according to claim 1, wherein the display unit is rotatably mounted.   The chassis member is configured to rotatably mount the display unit by contacting the display unit at a substantially central position of the first side and the second side of the display unit. The electronic device according to claim 1.   5. The electronic apparatus according to claim 1, wherein the display unit has a rectangular shape, and the first side and the second side are long sides of the display unit.

Images