JP6017971B2 - Electronics - Google Patents

Description

  The present invention relates to an electronic device.

  There is a technique for placing a display on a flat area of a metal plate. This technique is disclosed in Patent Document 1, for example.

JP 2013-5257 A

  When the display is placed on a flat area of the metal plate, the circuit board cannot be disposed between the display and the metal plate. If the region where the circuit board is arranged on the metal plate is provided by pressing, sufficient processing accuracy cannot be obtained.

  This invention is made | formed in view of this subject, and it aims at providing the electronic device which can arrange | position a circuit board suitably between a display and a metal plate.

  An electronic apparatus according to an embodiment of the present invention includes a display, a sheet metal member having a main surface portion on which the display is placed, and a hollow portion that is recessed from the main surface portion, and protrudes toward the main surface portion. A resin member to be molded, and a circuit board disposed between the resin member and the display and on which the display is placed.

  ADVANTAGE OF THE INVENTION According to this invention, the electronic device which can arrange | position a circuit board suitably between a display and a metal plate can be provided.

It is a perspective view which shows the outline of the smart phone which is embodiment of the electronic device which concerns on this invention. It is principal part sectional drawing along the II-II line of the smart phone shown in FIG. It is a whole perspective view which shows the structure of the mounting member shown in FIG. It is a perspective view of the principal part cross section of the mounting member shown in FIG.

  Hereinafter, a smartphone 10 will be exemplified as one embodiment of an electronic apparatus according to the present invention and will be described with reference to the drawings.

  The smartphone 10 shown in FIGS. 1 and 2 includes a display, a mounting member 30, a circuit board 40, and electronic components.

  In this embodiment, the touch screen display 20 is adopted as a display. The touch screen display 20 includes a display device and a touch screen. In addition, it may replace with the touch screen display 20 as a display, and may employ | adopt the display device which abbreviate | omitted the touch screen.

  The display device is a device that displays electronic information as an image. The display device has a substantially flat plate structure. In the present embodiment, of the two main surfaces of the display device, a main surface located outside the smartphone 10 is simply referred to as a display surface, and a main surface located inside the smartphone 10 is simply referred to as a back surface. As the display device, various devices including an LCD (Liquid Crystal Display) and an ELD (Electro-Luminescence Display) can be adopted.

  The touch screen is a device that receives an instruction operation for an image displayed on the display device. Although the touch screen of this embodiment is arranged so as to overlap the display surface of the display device. It may be arranged so as to overlap the back surface of the display device. Note that the touch screen of the present embodiment has a separate configuration from the display device and the touch screen, but may be integrated with the display device. As the touch screen, devices including various types of contact sensors such as a capacitance method, a resistance film method, a surface acoustic wave method (or an ultrasonic method), an infrared method, an electromagnetic induction method, and a load detection method are adopted. it can.

  The mounting member 30 shown in FIGS. 3 and 4 is for mounting the touch screen display 20. The mounting member 30 includes a sheet metal member 31 and a resin member 32.

  The sheet metal member 31 is a main material on which the touch screen display 20 is placed. The sheet metal member 31 includes a main surface portion 31a, a recessed portion 31b, and a through hole 31c. The main surface portion 31 a of the sheet metal member 31 is a portion that mainly supports the touch screen display 20. In other words, a part of the touch screen display 20 is placed on the main surface portion 31 a of the sheet metal member 31. The recessed portion 31b of the sheet metal member 31 is a portion that is recessed from the main surface portion 31a. The recess 31b is provided in the sheet metal member 31 by sheet metal processing or the like. The through hole 31c of the sheet metal member 31 is a part that defines a hole penetrating the main surface portion 31a.

  A sheet metal member 31 is insert-molded in the resin member 32. The resin member 32 has a protruding portion 32 a that protrudes from the recessed portion 31 b of the sheet metal member 31 toward the main surface portion 31 a. The protrusion 32 a is a part that supports the circuit board 40. In other words, the circuit board 40 is placed on the protruding portion 32 a of the resin member 32. In the present embodiment, since the protruding portion 32a that supports the circuit board 40 is molded from a resin material, the accuracy with respect to the thickness can be increased as compared with the case of molding from a metal material. Moreover, since the protrusion part 32a which supports the circuit board 40 protrudes from the hollow part 31b of the sheet metal member 31, the circuit board 40 and the sheet metal member 31 can be spaced apart.

  The protruding portion 32a of the present embodiment includes a first protruding portion 32a1 and a second protruding portion 32a2 having different heights from the recessed portion 31b of the sheet metal member 31. The 2nd protrusion part 32a2 is a site | part where the thickness with respect to the hollow part 31b of the sheet metal member 31 is thicker than the 1st protrusion part 32a1. The first protrusion 32a1 is integrally formed with the second protrusion 32a2. In this embodiment, the 1st protrusion part 32a1 and the 2nd protrusion part 32a2 which support the circuit board 40 are shape | molded with the resin material. By adopting this configuration, in this embodiment, it is possible to reduce the warpage of the metal serving as the base material as compared with the case where the multi-step depression is formed by sheet metal processing. In addition, by adopting this configuration, in the present embodiment, it is possible to reduce the number of parts that become nodes with respect to the torsional pressure, compared to the case where multi-stage depressions are formed by sheet metal processing. By reducing the number of parts that become nodes with respect to the twisting pressure, it is possible to reduce the concentration of the load on a part of the touch screen display 20.

  The resin member 32 of the present embodiment includes a frame portion 32 b that surrounds the sheet metal member 31. The frame portion 32 b is a part that functions as a part of the case of the smartphone 10.

  The circuit board 40 of the present embodiment includes a first circuit board 41, a second circuit board 42, and a third circuit board.

  The first circuit board 41 includes wiring that is electrically connected to the touch screen.

  The second circuit board 42 includes wiring that is electrically connected to the display device. The second circuit board 42 has a placement area 42a and a mounting area 42b.

  The placement area 42 a of the second circuit board 42 is an area placed on the second protrusion 32 a 2 of the resin member 32 or the first circuit board 41. The second circuit board 42 of the present embodiment is placed so as to cover the first circuit board 41. The second circuit board 42 of the present embodiment is placed so as to cover the protrusion 32 a of the resin member 32. Since the second circuit board 42 and the main surface portion 31a of the sheet metal member 31 support the touch screen display 20, the touch screen display 20 can be satisfactorily placed in the present embodiment. By placing the depth of the recess 31b with respect to the main surface portion 31a of the sheet metal member 31 and the thickness of the circuit board 40 superimposed on the protruding portion 32a of the resin member 32, the touch screen display 20 can be placed better. Can do. In the present embodiment, since the protruding portion 32a of the resin member 32 that supports the circuit board 40 is molded from the resin material, the accuracy with respect to the thickness can be easily increased.

  The mounting area 42 b of the second circuit board 42 is separated from the recess 31 b of the sheet metal member 31. The mounting area 42b of the second circuit board 42 is an area where electronic components are mounted. In this embodiment, since the 2nd protrusion part 32a2 which supports the 2nd circuit board 42 protrudes from the hollow part 31b of the sheet metal member 31, the 2nd circuit board 42 and the sheet metal member 31 can be spaced apart. By adopting this configuration, in this embodiment, an electronic component can be mounted in the mounting region 42b.

  The third circuit board is electrically connected to the first circuit board 41 and the second circuit board 42. The third circuit board, the first circuit board 41, and the second circuit board 42 are electrically connected through the through hole 31c of the sheet metal member 31. The third circuit board is placed on the main surface side that forms a pair with the main surface portion 31 a of the sheet metal member 31.

  Electronic components are various electronic components including switches, resistors, capacitors, piezoelectric elements, antenna devices, microphones, speakers, computing devices, and storage devices. The electronic component of the present embodiment is appropriately mounted on the circuit board 40 in an appropriate area and has a function corresponding to the purpose. Among the electronic components of the present embodiment, the electronic component 50 mounted on the mounting region 42b of the second circuit board 42 can be shielded by the sheet metal member 31, so that the influence on other electronic components can be reduced. .

  In the embodiment, the smartphone 10 has been described as an example. However, the present invention is not limited thereto, and may be applied to various electronic devices such as a mobile phone, a tablet terminal, a PDA (Personal Digital Assistant), and a PC.

Smartphone 10
Touch screen display 20
Placement member 30
Sheet metal member 31
Main surface portion 31a
Recess 31b
Through hole 31c
Resin member 32
Protruding part 32a
First protrusion 32a1
Second protrusion 32b2
Frame 32b
Circuit board 40
First circuit board 41
Second circuit board 42
Placement area 42a
Mounting area 42b
Electronic component 50

Claims (8)

display,
A sheet metal member having a main surface portion on which the display is placed and a hollow portion recessed from the main surface portion;
A resin member that protrudes toward the main surface portion and is molded into the recess, and
An electronic device comprising a circuit board that is placed on the resin member and supports the display.   The electronic device according to claim 1, wherein the resin member includes a first portion and a second portion having different thicknesses with respect to the hollow portion of the sheet metal member. The second part of the resin member is thicker than the first part with respect to the depression of the sheet metal member,
The circuit board includes a first circuit board placed on the first part, and a second circuit board placed on the second part and the first circuit board and supporting the display. The electronic device according to claim 2.   2. The circuit board according to claim 1, wherein the circuit board includes a mounting area that is mounted on the resin member, and a mounting area that is spaced apart from the recess of the sheet metal member and on which an electronic component is mounted. Electronics.   The electronic device according to claim 1, wherein the recessed portion of the sheet metal member has a substantially uniform depth with respect to the main surface portion.   The electronic device according to claim 1, wherein the resin member is recessed from a main surface portion of the sheet metal member.   The electronic device according to claim 1, wherein the resin member is integrally formed with a housing that supports the display.   The electronic device according to claim 1, wherein the circuit board is a flexible printed board electrically connected to the display.

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