JP4893461B2 - Electronic device protection plate - Google Patents

Description

  The present invention relates to a protective plate for an electronic device disposed in a housing.

  In conventional electronic devices, when an FFC (flexible flat cable), FPC (flexible printed cable) or the like is disposed close to a component mounted on a printed circuit board, the FFC or FPC is prevented from coming into contact with the component and being damaged. Therefore, a protective plate is disposed between the FFC or FPC and the component.

  FIG. 5 shows a conventional example of such a protective plate. One end of the FFC 1 shown in FIG. 5 is fixed to the protective plate 6 and further connected to the connector 2. The other end of the FFC 1 is also connected to a connector 2 attached to a printed circuit board or the like. The protection plate 6 is made of a flexible rectangular plastic sheet, and its longitudinal direction coincides with the longitudinal direction of the FFC 1. And it arrange | positions close to the lower surface of FFC1.

  FIG. 6 shows an example of the usage state of the protection plate 6. A structure 11 is disposed in the housing 10 illustrated in FIG. 6, and printed circuit boards 7, 8, and 9 are disposed between the housing 10 and the structure 11. The connector 2 to which the side to which the protective plate 6 of the FFC 1 is fixed is connected is attached to the printed board 8, and the protective plate 6 is disposed between the printed board 7 and the FFC 1. The protective plate 6 prevents the components 7a, 7a... Mounted on the printed circuit board 7 from coming into contact with the FFC 1 and damaging the FFC 1.

  FIG. 7 shows a process in which the protective plate 6 is disposed between the printed circuit board 7 and the printed circuit board 9. At this time, the protection plate 6 moves relative to the printed circuit board 7, but the tip of the protection plate 6 may abut against the component 7a. At this time, since the edge of the front end of the protection plate 6 is a straight line perpendicular to the movement direction, the component 7a exerts a force on the protection plate 6 in a direction opposite to the movement direction. Since this force acts in the longitudinal direction of the protective plate 6, it becomes a strong buckling force.

  FIG. 7A and FIG. 7B show a state where the protective plate 6 is buckled. When the one-end protection plate 6 begins to buckle downward, the component 7a does not exert an upward force on the tip of the protection plate 6, and the buckling further progresses, so that the insertion of the protection plate 6 is repeated from the beginning. Must be. As described above, there is a problem that it takes time to assemble.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a protective plate for an electronic device that can be easily assembled.

  The protective plate of the electronic device according to the present invention is a protective plate of an electronic device that is disposed in the casing of the electronic device and protects the components in the casing. The edge of the tip portion is composed of a straight line that becomes narrower toward the tip direction or a portion that is formed by a smooth curve.

  Further, in the protective plate of the electronic device, the edges on both sides of the front end portion in the longitudinal direction are formed with straight lines or smooth curves that become narrower toward the front end direction.

  In the protective plate of the same electronic device, the edge on one side of the tip portion in the longitudinal direction is formed by a straight line or a smooth curve that becomes narrower toward the tip direction.

  Further, in the protective plate of each electronic device, one end of the FFC or FPC is fixed to a base end portion facing the distal end portion of the protective plate, and is further connected to a connector, and the protective plate is connected to the FFC or FPC. The FFC or FPC is protected by covering.

  In the protective plate of the electronic device, the other end of the FFC or FPC is also connected to the connector.

  Further, in the protective plate of each electronic device, the corner of the front end portion of the protective plate has an R shape.

  According to the protective plate of the present invention, the operation of inserting the protective plate into the housing becomes easy.

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

  1 is a perspective view showing a protective plate of an electronic apparatus according to Embodiment 1 of the present invention. The protective plate 3 used in the first embodiment is formed by a straight line whose edges on both sides become narrower toward the tip, and the corner of the tip has an R shape. Other configurations are the same as those of the conventional example described in FIGS. 5 and 6, and the same members are attached to the same members as those of the conventional example, and detailed description thereof is omitted.

  When the protective plate 3 according to the first embodiment contacts the component 7a, the component 7a exerts a force in a direction perpendicular to the straight line of the inclined edge. That is, this force has a component in the traveling direction and a direction perpendicular to the traveling direction with respect to the protective plate 3, and the protective plate 3 starts to slide in the linear direction of the edge with respect to the component 7a.

  Then, it tries to bend upward or downward, but its buckling force is weak, there are printed circuit board components in the downward direction, and there is a large space in the upward direction. The tip of the protection plate 3 is deformed upward.

  Then, the protective plate 3 is arranged between the components 7a, 7a... Mounted on the printed circuit board 7 and the FFC 1 like the protective plate 6 shown in FIG. In this way, the assembling work of the protection plate 3 is facilitated. This embodiment is effective when the center of the front end of the protective plate 3 enters between tall components mounted on the printed circuit board 7.

  3 is a perspective view showing a protective plate of an electronic apparatus according to Embodiment 2 of the present invention. The protective plate 4 used in the second embodiment is formed by a straight line with one side of the edge narrowing in the direction of the tip, and the corner of the tip has an R shape. Other configurations are the same as those of the conventional example described with reference to FIGS. 5 and 6, and the same members are denoted by the same members as those of the conventional example, and detailed description thereof is omitted.

  This embodiment is effective in the case where tall components mounted on the printed circuit board 7 are sequentially arranged so as to be biased toward one side with respect to the front end of the protection plate 4.

  4 is a perspective view showing a protective plate of an electronic apparatus according to Embodiment 3 of the present invention. The protective plate 5 used in the third embodiment is formed with a convex curve in the outer direction where the edges on both sides become narrower toward the tip. Other configurations are the same as those of the conventional example described with reference to FIGS. 5 and 6, and the same members are denoted by the same members as those of the conventional example, and detailed description thereof is omitted.

  In this embodiment, the angle of inclination of the curve of the edge of the protective plate 5 decreases toward the rear with respect to the traveling direction of the protective plate 5, so that the tip of the protective plate 5 may be sandwiched between components and become locked. Is prevented.

  The embodiment is configured as described above, but the invention is not limited to this. For example, the invention can be applied to a case where the FPC is fixed to the base end portion facing the front end portion of the protective plate. . The present invention can also be applied to sheets that are inserted into the housing later.

It is a perspective view which shows the protection board of the electronic device which is Example 1 of this invention. It is a fragmentary perspective view for demonstrating the effect | action of the protection board of the same electronic device. It is a perspective view which shows the protection board of the electronic device which is Example 2 of this invention. It is a perspective view which shows the protection board of the electronic device which is Example 3 of this invention. It is a perspective view which shows the example of the protection board of the conventional electronic device. It is a side view which shows the use condition of the protection board of the same electronic device. FIG. 7A is a partial perspective view for explaining the operation of the protective plate of the electronic device, and FIG. 7B is a partial side view for explaining the operation of the protective plate of the electronic device.

Explanation of symbols

1 FFC
2 Connector 3, 4, 5, 6 Protection plate 7, 8, 9 Printed circuit board 7a Parts 10 Case 11 Structure

Claims (6)

In a protective plate of an electronic device that is disposed in a casing of an electronic device and protects components in the housing, the protective plate is formed of a substantially rectangular portion that can be elastically deformed and an edge of a longitudinal tip is directed in the tip direction. A protective plate for an electronic device comprising a straight line having a narrow width or a portion formed by a smooth curve. The protective plate for an electronic device according to claim 1, wherein the edges on both sides of the tip portion in the longitudinal direction are formed by a straight line or a smooth curve that becomes narrower toward the tip direction. The protective plate of the electronic device of Claim 1 in which the edge of the one side of the said front-end | tip part of the said longitudinal direction is formed with the straight line or smooth curve which becomes narrow toward the front-end | tip direction. The one end of the FFC or FPC is fixed to a base end portion facing the distal end portion of the protection plate, and is further connected to a connector, and the protection plate protects the FFC or FPC by covering the FFC or FPC. The protective plate of the electronic device described in any one of 3 to 3. The protective plate of the electronic device according to claim 4, wherein the other end of the FFC or FPC is also connected to a connector. The protective plate for an electronic device according to claim 1, wherein a corner of the front end portion of the protective plate has an R shape.

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