TWI504338B - Electronic device - Google Patents

Description

Electronic device

The present invention relates to an electronic device, and more particularly to an electronic device, which can achieve the requirements of light weight and low cost.

With the development of technology, more and more electronic devices are becoming thinner. Many manufacturers have introduced all-in-one electronic devices or integrated internal electronic components into a single-chip type to reduce the occupation of circuit boards. Space. However, as the power of the wafer increases, the demand for miniaturization and high-speed computing electronic devices increases, for electromagnetic interference (EMI), radio frequency interference (RFI), and electrostatic discharge (ESD). Protection is also increasingly important. The miniaturized and high-density electronic device is most susceptible to electronic noise interference and electrostatic damage, and requires electromagnetic wave shielding and electrostatic protection.

In order to comply with safety standards, conventional techniques provide a large area of iron sheet with electromagnetic shielding function on the housing, and the associated electronic components are disposed on the housing to expose the associated electronic components to the opening of the housing. However, iron sheets are expensive, and iron sheets increase the overall weight of electronic devices, failing to meet the demands of light weight and low cost.

The present invention relates to an electronic device, which can save the use of a large area of iron sheets to meet the requirements of light weight and low cost, and can meet the safety standards.

According to an aspect of the invention, an electronic device is provided, comprising a housing, a display, and a circuit board. The display has a display surface and a metal back shell. The circuit board is non-movably disposed between the display and the housing. An electronic component is disposed on the circuit board, and the electronic component faces the metal back shell of the display.

In order to better understand the above and other aspects of the present invention, the preferred embodiments are described below, and in conjunction with the drawings, the detailed description is as follows:

In the electronic device of this embodiment, the electronic components on the circuit board are directed toward the display by using a reverse-disposed circuit board. In addition, the board can be grounded through the metal backshell of the display to prevent electromagnetic interference. Since the metal back shell of the display is used as the grounding surface, the use of a large area of iron sheets can be saved to achieve the requirements of light weight and low cost, and can meet the safety standards.

The following is a detailed description of various embodiments, which are intended to be illustrative only and not to limit the scope of the invention.

First embodiment

Please refer to FIG. 1 , which is a schematic diagram of an electronic device according to an embodiment of the invention. The electronic device 100 includes a housing 110, a display 120, and a circuit board 130. The display 120 has a display surface 121 and a metal back shell 122. An electronic component 132 is disposed on the circuit board 130, and the electronic component 132 faces the metal back shell 122 of the display 120. The circuit board 130 can be a display card, a sound card or a power conversion circuit board or other interface card, etc., and the electronic component 132 is, for example, a passive component, a power connector, a video terminal, a network transmitter, or other type of connector. In the present embodiment, the circuit board 130 includes an interface card 131 and a power conversion circuit board 133. The interface card 131 includes a video terminal, and the power conversion circuit board 133 includes a power connector.

In an embodiment, display 120 is, for example, a liquid crystal display or other type of flat panel display. The display surface 121 and the metal back shell 122 are located on opposite sides of the display 120. The metal back shell 122 has a complete plane and a large area. With respect to the housing 110, the outer shape of the housing 110 can only provide a partial plane due to the design and structural strength requirements of the opening 112, and the remaining portions are provided with reinforcing ribs. 114 to increase the strength of the overall structure. The material of the housing 110 is, for example, plastic. In order to meet the safety standards, the circuit board 130 of the present invention has the surface of the electronic component 132 facing the metal back shell 122, and the surface of the unconfigured electronic component 132 faces the housing 110, and The screw 136 locks the circuit board 130 such that the circuit board 130 is non-movably disposed between the display 120 and the housing 110. That is to say, the circuit board 130 is disposed in the reverse direction so that the electronic component 132 is not exposed on the outside of the circuit board 130. In addition, the circuit board 130 has a ground terminal 134. The ground terminal 134 is electrically connected to the metal back shell 122 to form a ground loop. Therefore, the circuit board 130 can be grounded through the large-area metal back shell 122 to prevent electromagnetic wave interference. In addition, if the electronic component 132 generates a spark, the metal back shell 122 also generates a fireproof function.

Second embodiment

2 and 3A-3B, wherein FIG. 2 is a schematic diagram of an electronic device according to an embodiment of the present invention, and FIGS. 3A-3B respectively illustrate a view and a side of the circuit board of FIG. 2 fixed on the display. view. In FIG. 2, the electronic device 101 includes a housing 110, a display 120, a circuit board 130, a first metal plate member 140, and a second metal plate member 150. As shown in the first embodiment, the display 120 has a display surface 121 and a metal back shell 122. An electronic component 132 is disposed on the circuit board 130. The electronic component 132 faces the metal back shell 122 of the display 120. In addition, the circuit board 130 can be grounded through the large-area metal back shell 122 to prevent electromagnetic interference. This embodiment is different from the first embodiment in that the circuit board 130 is fixed on the metal back shell 122 by the first metal plate member 140 and the second metal plate member 150, and the ground end 134 of the circuit board 130 is transmitted through the first metal. The plate member 140 or the second metal plate member 150 is electrically connected to the metal back shell 122.

In FIG. 2, the first metal plate member 140 is disposed perpendicular to the metal rear case 122, and the first metal plate member 140 maintains a predetermined distance D between the circuit board 130 and the display 120 (as shown in FIG. 3B). Further, the second metal plate member 150 is disposed perpendicular to the metal rear case 122. The second metal plate 150 is disposed in parallel with the first metal plate 140 and is located on opposite sides of the circuit board 130, respectively. Accordingly, the circuit board 130 can be disposed in parallel between the housing 110 and the display 120 with a predetermined spacing D between the circuit board 130 and the display 120.

In FIG. 2, the first metal plate member 140 includes a slot 142 and a latching member 144. The fastening component 144 is configured to fix the circuit board 130 such that the electronic component 132 is positioned in the slot 142, and the opening 112 of the housing 110 corresponds to the slot 142 of the first metal panel 140 to expose the housing 110. Electronic component 132. In addition, in order to comply with safety standards, a spacer 160 may be disposed between the circuit board 130 and the housing 110. The spacer 160 may be an antistatic insulating material to protect the circuit board 130.

The circuit board 130 can be a single circuit board or a combination of two circuit boards. As shown in FIG. 2, the circuit board 130 may include an interface card 131 and a power conversion circuit board 133 which are separately provided. The interface card 131 and the power conversion circuit board 133 respectively have a ground terminal 134. Each of the grounding ends 134 can be electrically connected to the metal back shell 122 by the first metal plate member 140, and the first metal plate member 140 maintains a predetermined spacing D between the interface card 131 and the power conversion circuit board 133 and the display 120, respectively. . In addition, the first metal plate member 140 can be a single iron member, or a separately provided two iron members or three iron members, which can be adjusted according to actual needs and achieve the requirements of light weight.

Please refer to FIG. 4, which is a schematic diagram of an electronic device according to an embodiment of the invention. In FIG. 4, the electronic device includes a housing 110, a display 120, a circuit board 130, a plurality of stoppers 170, and a conductive elastic structure 180. As shown in the first embodiment, the display 120 has a display surface 121 and a metal back shell 122. An electronic component 132 is disposed on the circuit board 130. The electronic component 132 faces the metal back shell 122 of the display 120. In addition, the circuit board 130 can be grounded through the large-area metal back shell 122 to prevent electromagnetic interference. The difference between the embodiment and the first embodiment is that the circuit board 130 is fixed on the housing 110 by the stopper 170, and the ground end 134 of the circuit board 130 is electrically connected to the metal back shell 122 through the conductive elastic structure 180.

In FIG. 4, the stoppers 170 are opposed to each other and separated by the size of the circuit board 130 to form an accommodating space S, so that the circuit board 130 is confined in the accommodating space S, and the circuit board 130 and the display 120 are A predetermined distance D is maintained between. In one embodiment, the sides of the circuit board 130 can be secured to the stop block 170 by screws to place the circuit board 130 flat on the housing 110. In addition, the conductive elastic structure 180 is disposed at the ground end 134 or the metal back shell 122. When the housing 110 is coupled with the display 120, the conductive elastic structure 180 electrically connects the ground end 134 with the metal back shell 122. Therefore, the circuit board 130 can be grounded through the large-area metal back shell 122 to prevent electromagnetic wave interference. In one embodiment, the conductive elastic structure 180 may be an elastic body. When the housing 110 is combined with the display 120, the conductive elastic structure 180 is compressed to ensure that the circuit board 130 can electrically connect the metal back shell 122 through the conductive elastic structure 180.

The electronic device disclosed in the above embodiments of the present invention uses a reverse-disposed circuit board to face the electronic components on the circuit board toward the display, thereby saving the use of a large-area iron piece to achieve the requirements of light weight and low cost. In addition, the board can be grounded through the metal backshell of the display to prevent electromagnetic interference to comply with safety standards.

In conclusion, the present invention has been disclosed in the above preferred embodiments, and is not intended to limit the present invention. A person skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

100, 101, 102‧‧‧ electronic devices

110‧‧‧shell

112‧‧‧ openings

114‧‧‧Strengthened ribs

120‧‧‧ display

121‧‧‧ Display surface

122‧‧‧Metal back shell

130‧‧‧ boards

131‧‧‧Interface card

132‧‧‧Electronic components

133‧‧‧Power Conversion Board

134‧‧‧ Grounding

136‧‧‧ screws

140‧‧‧First sheet metal parts

142‧‧‧ slotting

144‧‧‧Fittings

150‧‧‧Second metal sheet

160‧‧‧Isolation

170‧‧‧ stop block

180‧‧‧Electrically conductive structure

D‧‧‧Predetermined spacing

S‧‧‧ accommodating space

1 is a schematic view of an electronic device in accordance with a first embodiment of the present invention.

2 is a schematic view of an electronic device in accordance with a second embodiment of the present invention.

3A-3B are respectively a side view and a side view of the circuit board of FIG. 2 fixed on the display.

FIG. 4 is a schematic diagram of an electronic device according to an embodiment of the invention.

101. . . Electronic device

110. . . case

112. . . Opening

120. . . monitor

121. . . Display surface

122. . . Metal back shell

130. . . Circuit board

131. . . Interface card

133. . . Power conversion board

134. . . Ground terminal

136. . . Screw

140. . . First metal plate

142. . . Slotting

144. . . Fastener

150. . . Second metal plate

160. . . Isolation piece

Claims (10)

An electronic device comprising: a housing; a display having a display surface and a metal back shell; and a circuit board non-movably disposed between the display and the housing, the circuit board being provided with an electronic component, The electronic component faces the metal back shell of the display; a first metal plate member, the first metal plate member is disposed perpendicular to the metal back shell; and a second metal plate member, the second metal plate member and the metal back portion The shell is vertically disposed, and the second metal plate member is disposed in parallel with the first metal plate member and is respectively located on opposite sides of the circuit board to maintain a predetermined distance between the circuit board and the display. The electronic device of claim 1, wherein the circuit board has a grounding end electrically connected to the metal back shell. The electronic device of claim 1, further comprising a spacer disposed between the circuit board and the housing. The electronic device of claim 2, wherein the circuit board is fixed to the first metal plate member, and the grounding end is electrically connected to the metal back shell through the first metal plate member. The electronic device of claim 4, wherein the first metal plate member comprises a slot and a fastening component for fixing the circuit board to position the electronic component In the slot, and the housing reveals the electronic component. An electronic device according to claim 3, wherein the electronic device The separator is an antistatic insulation material. An electronic device comprising: a housing; a display having a display surface and a metal back shell; and a circuit board non-movably disposed between the display and the housing, the circuit board being provided with an electronic component The electronic component faces the metal back shell of the display; wherein the circuit board has a ground end electrically connected to the metal back shell, the housing includes a plurality of stop blocks, the stop blocks are opposite to each other And separating the size of the circuit board to form an accommodating space, so that the circuit board is confined in the accommodating space, and a predetermined distance is maintained between the circuit board and the display. The electronic device of claim 7, wherein the side of the circuit board is fixed to the stoppers so that the circuit board is placed on the casing. The electronic device of claim 7, further comprising a conductive elastic structure disposed on the grounding end or the metal back shell, the conductive elastic structure making the grounding end and the grounding end when the housing is combined with the display The metal back shell is electrically connected. The electronic device of claim 1 or 7, wherein the circuit board comprises a separate interface card and a power conversion circuit board, the interface card comprises a video and audio terminal, and the power conversion circuit board comprises a power connection. Device.