JP5032167B2 - Electronics - Google Patents

Description

  The present invention relates to an electronic device, and more particularly to the structure of a display device.

  In recent years, portable electronic devices such as mobile phones, PDAs, and notebook personal computers have been widely used. Since these electronic devices are carried and used, structures and strengths that can withstand external vibrations and impacts such as dropping are required. Among electronic devices, a display device such as an LCD is one of fragile components, and measures such as arranging beams and cushioning materials around the display device are taken in order to prevent breakage.

As a technique for preventing breakage of internal components due to the fall of an electronic device, for example, one described in Patent Document 1 can be cited. A protrusion is provided around the LCD so as to protrude from the inner surface of the back case of the display unit of the personal computer and to contact the inner surface of the front case. By placing the inverter circuit at a position lower than the protrusion, the inverter circuit is protected even when it is impacted by dropping or the like.
JP 2006-155405 A

  In the above method, although a clearance is provided between the front case and the inverter circuit to be protected, the inverter circuit can be protected when the front case itself is deformed and depressed due to an impact such as dropping. There is a problem that you can not.

  Accordingly, an object of the present invention is to provide an electronic apparatus capable of preventing a display device from being damaged when dropped.

  In order to achieve the above object, an electronic apparatus according to the present invention includes a main body, a display casing rotatably attached to the main body, and having a first casing and a second casing, and the display casing. A display device provided in the body, and at least one beam portion provided on the inner surface of the first housing, the distance between the display device and the first housing, the display device, and the second The distance between the tip of the beam and the inner surface of the second casing is smaller than the sum of the distance to the casing.

  ADVANTAGE OF THE INVENTION According to this invention, the electronic device which can prevent that a display apparatus is damaged at the time of fall can be provided.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an appearance of an electronic apparatus according to the present embodiment. The electronic device 1 includes a main body 2, and a display housing 3 is rotatably attached to the main body 2 via a hinge portion 4. A display device 5 such as an LCD (Liquid Crystal Display) is incorporated in the display housing 3, and the display device 5 is covered with an upper housing 6 and a lower housing 7.

  A touch pad 8 and a keyboard 9 are attached to the upper surface 2 a of the main body 2. The main body 2 has an upper case 10 and a lower case 11 made of resin or a metal such as magnesium alloy, and a circuit board (not shown) on which a plurality of electronic components are mounted is accommodated in the main body 2.

  2 and 3 are exploded perspective views of the display housing of the electronic device according to the present embodiment. The display device 5 is incorporated in the display housing 3 so as to be sandwiched between the upper housing 6 and the lower housing 7. The display device 5 is provided with an inverter circuit 20. The inverter circuit 20 supplies power to a backlight (not shown) arranged in parallel with the display device 5.

  The display device 5 is screwed to the fixing member 21 and is screwed to the lower housing 7 through a screw hole provided in the fixing member 21. After the display device 21 is screwed to the lower housing 7 using the fixing member 21, the upper housing 6 is covered, and the display device 3 including the upper housing 6 and the lower housing 7 is attached to the display device 3. 5 is accommodated.

  When external vibration or impact is applied to the display device 5 attached to the fixing member 21 such as a sheet metal by screw fixing or the like, the display device 5 moves due to elastic deformation or plastic deformation of the fixing member 21, Surrounding structures such as the housing 6 and the lower housing 7 may come into strong contact with each other, and the display device 5 made of glass or the like may be damaged.

  In the electronic apparatus 1 according to this embodiment, a beam 30 is provided on the inner surface 7 a of the lower housing 7, and the beam 30 is independent of the outer peripheral wall 7 b of the lower housing 7. The beam 30 extends from the inner surface 7 a of the lower housing 7 toward the upper housing 6, and the tip 30 a of the beam 30 protrudes toward the upper housing 6 from the upper surface 5 a of the display device 5.

  By adopting such a structure, the beam 30 protrudes from the upper surface 5a of the display device 5 when vibration or impact is applied to the display device 5 due to, for example, the electronic device 1 dropping. Since the part 30a contacts the upper housing 6, it is possible to reduce a risk that the display device 5 and the upper housing 6 collide and the display device 5 is broken.

  FIG. 4 is a cross-sectional view schematically showing the positional relationship between the display device and the beam in this embodiment. In FIG. 4, the configuration necessary for the description of the present embodiment is shown in a form in which the main body 2 and the upper casing 6 and the lower casing 7 in which the display device 5 is incorporated are separated. Omitted. As shown in FIG. 4, the dimensions at this time can be as follows, for example. The distal end portion 30a of the beam 30 and the inner surface 6a of the upper housing 6 are separated by a distance b. A distance c is separated from the upper surface 5 a on the side where the display device 5 is opened from the upper housing 6 and the inner surface 6 a of the upper housing 6. A distance d is separated from the back surface 5b on the side where the display device 5 is covered by the lower housing 7 and the lower housing 7. When the distance b is smaller than the sum of the distance c and the distance d in the relationship between the distance b, the distance c, and the distance d (b <c + d), when vibration or impact is applied to the electronic device 1 In addition, the inertial force applied to the electronic device 1 can be received by the beam 30. When vibration or impact is applied to the electronic device 1, the distal end portion 30 a of the beam 30 is placed in the upper housing 6 before the display device 5 contacts the inner surface 6 a of the upper housing 6 or the inner surface 7 a of the lower housing 7. By contacting the inner surface 6a, the load applied to the display device 5 can be reduced and the damage of the display device 5 can be suppressed.

  FIG. 4 shows a view in which the beam 30 is provided on the inner surface 7a of the lower housing 7 and the tip 30a of the beam 30 faces the inner surface 6a of the upper housing 6. 6 on the inner surface 6a of the beam 6 so that the tip 30a of the beam 30 faces the inner surface 7a of the lower housing 7. In FIG. 3, the beam 30 is divided into a plurality of parts. However, as shown in FIG. 5, the beam is integrated so as to be along the outer peripheral wall 7b of the lower housing 7 and the side 5c of the display device 5. Alternatively, the beam 32 may be provided continuously.

  FIG. 6 is a cross-sectional view showing the display device according to the second embodiment and beams and protrusions provided in the housing. In the following description, the same components as those shown in the first embodiment are denoted by the same reference numerals, and redundant descriptions are omitted. In the second embodiment, the protrusion 40 is provided on the upper surface 2 a of the main body 2. In a state where the display housing 3 is closed, the projection 40 is provided at a position facing the beam 30 provided in the display housing 3.

  The beam 30 provided at a position facing the projection 40 supports the projection 40 even when a vibration or impact is applied by dropping the electronic device 1 with the display housing 3 closed. 2 can be suppressed from being transmitted to the upper surface 5 a of the display device 5 through the upper housing 6. Therefore, the display device 5 can be prevented from being damaged when the electronic device 1 is dropped.

  A plurality of protrusions 40 can be provided on the upper surface 2 a of the main body 2 in correspondence with the positions of the plurality of beams 30 provided in the display housing 3.

  When the beam 30 provided in the display housing 3 is continuously provided so as to extend along the outer peripheral wall 7b of the lower housing 7 and the side 5c of the display device 5, the projection 40 is formed as a beam. A plurality of them may be provided at intervals, along the line 30.

  Further, as shown in FIG. 7, a projection 41 is provided on the upper housing 6 at a position facing the projection 40 provided on the upper surface 2a of the main body 2 in a state where the display housing 3 is closed. The protrusion 40 and the protrusion 41 provided on the upper housing 6 side of the display housing 3 may overlap each other. Protrusions 40 and 41 are provided on both the main body 2 side and the display housing 3 side, so that when the display device 3 is closed, the electronic device 1 may be dropped or subjected to vibration or impact. The beams 30 and the protrusions 41 provided at positions facing the protrusions 40 support the protrusions 40, thereby suppressing the inertial force of the main body 2 from being transmitted to the upper surface 5 a of the display device 5 through the upper housing 6. . Therefore, the display device 5 can be prevented from being damaged when the electronic device 1 is dropped.

  FIG. 8 is a cross-sectional view showing a display device and beams and protrusions provided on the housing according to the third embodiment. In the third embodiment, a protrusion 40 is provided on the upper surface 2 a of the main body 2, and the protrusion 40 is provided at a position facing the beam 30 provided in the display housing 3. On the inner surface 11 a of the lower case 11 of the main body 2, a beam 31 is provided at a position facing the beam 30 provided in the display housing 3 with the display housing 3 closed.

  In addition to providing the beam 30 on the display housing 3 side, the rigidity of the main body 2 and the display housing 3 can be increased by providing the beam 31 on the main body 2 side. When the electronic device 1 is dropped, the tip 31a of the beam 31 provided on the inner surface 11a of the lower case 11 contacts the inner surface 10a of the upper case 10, and the upper surface 2a of the main body 2 is prevented from being deformed. It is also possible to prevent the upper housing 6 from being deformed by contacting the upper surface 2a of the main body 2. Although FIG. 7 shows an example in which the protrusion 40 is provided on the upper surface 2a of the main body 2, the protrusion may be provided on the upper housing 6 on the display housing 3 side.

  FIG. 9 is a cross-sectional view showing the display device according to the fourth embodiment and beams and protrusions provided in the housing. In the fourth embodiment, a buffer material 50 is provided on the back surface 5 b side of the display device 5 in the display housing 3. The buffer material 50 is bonded to the inner surface 7a of the lower housing 7 using an epoxy adhesive or the like. By providing the buffer material 50 on the back surface 5a of the display device 5, it is possible to reduce the stress applied to the display device 5 when the display device 5 and the lower housing 7 come into contact with each other due to the electronic device 1 dropping or the like.

  The thickness of the buffer material 50 when no stress is applied to the buffer material 50 is set as e, and the minimum thickness when the buffer material 50 is stressed and compressed and deformed is set as e ′. Is a distance d between the back surface 5a of the display device 5 and the inner surface 7a of the lower housing 7, for example, can be set so as to satisfy d> {f + (e−e ′)}. By keeping the distance between the back surface 5b of the display device 5 and the buffer material 50 between the display device 5 and the inner surface 7a of the lower housing 7 by the amount of the buffer material 50 being deformed and contracted by stress, A clearance between the display device 5 and the lower housing 7 is provided, and contact between the display device 5 and the inner surface 7a of the lower housing 7 is prevented against an impact within a range where the cushioning material 50 can be deformed. The stress applied to the display device 5 can be reduced.

  As described above, according to the embodiment of the present invention, it is possible to provide an electronic device capable of preventing the display device from being damaged when dropped.

  The present invention is not limited to the above embodiment as long as it does not depart from the gist of the present invention, and various modifications are possible.

FIG. 14 is a perspective view illustrating an appearance of an electronic apparatus according to the embodiment. The disassembled perspective view of the display housing | casing of the electronic device which concerns on this embodiment. The disassembled perspective view of the display housing | casing of the electronic device which concerns on this embodiment. Sectional drawing which shows typically the positional relationship of the display apparatus which concerns on this embodiment, and a beam. The disassembled perspective view of the other display housing | casing of the electronic device which concerns on this embodiment. Sectional drawing which shows the display apparatus which concerns on 2nd Embodiment, and the beam and protrusion which were provided in the housing | casing. Sectional drawing which shows the display apparatus which concerns on 2nd Embodiment, and the beam and protrusion which were provided in the housing | casing. Sectional drawing which shows the display apparatus which concerns on 3rd Embodiment, and the beam and protrusion which were provided in the housing | casing. Sectional drawing which shows the display apparatus which concerns on 4th Embodiment, and the beam and protrusion which were provided in the housing | casing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Electronic device, 2 ... Main body, 3 ... Display housing, 4 ... Hinge part, 5 ... Display apparatus, 6 ... Upper housing, 7 ... Lower housing, 10 ... Upper case, 11 ... Lower case, 21 ... Fixed Member 30 ... Beam 31 ... Beam 32 ... Beam 40 ... Projection 41 ... Projection 50 ... Buffer

Claims (7)

A main body having a bottom surface, a side surface connected to the bottom surface, and a top surface provided to face the bottom surface via the side surface;
A display housing rotatably attached to the main body and having a first housing and a second housing;
A display device provided in the display housing;
Provided in the first housing surface, said display device and said first-edge portion that is spaced between the first said interval smaller than the distance between the housing second housing At least one first beam having
The first tip is provided on the bottom surface of the main body and is spaced from the top surface portion, and the first tip from the base of the first beam portion with the display housing closed. disposed on the longitudinal extension of up parts, and at least one second beam having a second-edge portion facing the first tip,
An electronic device comprising: The display device and the distance between the first housing, wherein the display device and the and the distance between the second housing, than the sum of the said second housing surface and the first-edge portion The electronic device according to claim 1, wherein a distance between the electronic device and the electronic device is small.   The electronic apparatus according to claim 1, wherein the first beam portion is provided along a side of the display device. Wherein the outer surface of the second housing, the electronic device according to claim 1, wherein a projection is provided so as to correspond to the first-edge portion.   2. The electronic device according to claim 1, wherein a projection is provided on an extension line of the first beam portion on the upper surface portion of the main body in a state where the display device is closed and covers the main body.   A first protrusion provided on the second housing, and a second protrusion provided on an upper surface portion of the main body facing the first protrusion in a state where the display device is closed and covers the main body. The electronic apparatus according to claim 1, further comprising:   The electronic apparatus according to claim 1, further comprising: a cushioning material provided on an inner surface of the first casing with a space from the display device.

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