TWI452944B - Electronic device and conducting sheet thereof - Google Patents

Description

Electronic device and its conductive sheet

The invention relates to an electronic device, in particular to a conductive sheet applied to an electronic device housing for preventing electromagnetic interference from leaking to the outside of the electronic device housing.

The protection of electromagnetic interference is a very important safety indicator for electronic products. Taking a computer as an example, the microprocessor is the source of the largest electromagnetic interference inside it. As the computing speed of the microprocessor is faster, the electromagnetic generated by it The interference is also more serious.

The computer includes its internal housing and electronic components disposed within the housing. In the usual design, the design of electromagnetic interference protection is to connect two electronic components or housings with conductive copper foil to realize the conduction of static electricity between the electronic components and the housing, and conduct electromagnetic conduction through the ground to prevent Electromagnetic interference. However, once there are three components to be turned on, the number of copper foils will increase, which will bring confusion and complexity to the internal structure.

In view of the above, it is necessary to provide a conductive sheet that facilitates electrostatic conduction between a plurality of objects.

It is also necessary to provide an electronic device that facilitates electrostatic conduction between a plurality of objects.

A conductive sheet for guiding static electricity, the conductive sheet comprising a support portion, two elastic arms extending from the support portion, and two fixing portions extending outward from the end of the support portion.

An electronic device comprising a grounded first housing and a first housing a second housing, and an electronic component disposed between the first housing and the second housing, the electronic device further includes a conductive sheet fixed between the main board and the first housing, the conductive The sheet includes a resilient arm that abuts against the second housing to direct static electricity from the second housing.

The conductive sheet can simultaneously conduct static electricity between three objects, and solves the internal structural disorder caused by the electrostatic conduction of the copper foil of the electronic device in the prior art, thereby saving space.

100‧‧‧Electronic devices

102‧‧‧First housing

103‧‧‧Bump

104‧‧‧Second housing

106‧‧‧floor

108‧‧‧ motherboard

110‧‧‧Conductor

112‧‧‧ accommodating chamber

114‧‧‧ Conductive fixed block

116‧‧‧First threaded hole

118‧‧‧Second threaded hole

120‧‧‧ base

121‧‧‧Support

122‧‧‧Flexible arm

124‧‧‧Connecting Department

125‧‧‧Connecting Department

126‧‧‧ fixed department

127‧‧‧ fixed department

128‧‧‧Fixed holes

129‧‧‧Fixed holes

134‧‧‧Resistance Department

1 is a perspective view of an electronic device in a preferred embodiment.

2 is an exploded view of the electronic device of FIG. 1.

3 is an exploded view of another perspective of the electronic device of FIG. 1.

4 is a perspective view of a conductive sheet in the electronic device of FIG. 1.

Figure 5 is a partial cross-sectional view of the electronic device V-V of Figure 1.

The present invention will be described in detail below with reference to the embodiments and the accompanying drawings.

As shown in FIG. 1 and FIG. 2, the electronic device 100 includes a first housing 102, a second housing 104 that is engaged with the first housing 102, a bottom plate 106 that is fixed to the second housing 104, and is fixed to the bottom plate. The main board 108 and the conductive sheet 110 on the 106. The bottom plate 106 is used to support the main board 108. One end of the conductive sheet 110 is fixed on the main board 108, the other end is fixed on the second housing 104, and the middle portion is abutted against the first housing 102.

Referring to FIG. 3 together, the second housing 104 is depressed in the middle to form a substantially rectangular parallelepiped receiving cavity 112. The bottom of the first housing 102 is provided with a convex surface opposite to the second housing 104 Column 103. An inner side wall of the second housing 104 protrudes from a rectangular parallelepiped conductive fixing block 114 for grounding. The conductive fixing block 114 defines a first threaded hole 116.

The main board 108 is provided with electronic components (not shown), and four second threaded holes 118 are formed therein.

As shown in FIG. 4 , the conductive sheet 110 includes a supporting portion 121 , two elastic arms 122 extending in parallel from the middle of the supporting portion 121 , and two fixing portions 126 and 127 extending outward from the end of the supporting portion 121 . The support portion 121 includes an elongated base portion 120 parallel to the two fixing portions 126, 127 and two connecting portions 124, 125 extending vertically upward from both end portions of the base portion 120. The fixing portions 126 and 127 are respectively provided with fixing holes 128 and 129. The two elastic arms 122 are upwardly arched from the base portion 120 and are arcuately bent away from the end of the base portion 120 to form a resisting portion 134 for abutting the first housing 102 to guide the first housing 102. Static electricity on. The fixing hole 129 is opposite to one of the second threaded holes 118 of the main board 108, so that the conductive sheet 110 is fixed on the main board 108 to guide the static electricity on the main board 108. The fixing hole 128 is opposite to the first threaded hole 116 so that the conductive sheet 110 is fixed on the conductive fixing block 114 and is pressed by the protruding post 103 to reach the main board 108 and the first housing 102 through the conductive sheet 110. The purpose of the electrostatic conduction on the ground.

As shown in FIG. 2 and FIG. 3, during assembly, the bottom plate 106 is carried on the bottom surface of the accommodating cavity 112, and the main board 108 is placed on the bottom plate 106, so that the fixing holes 128, 129 on the conductive sheet 110 and the second housing 104 are respectively The first threaded hole 116 and one of the second threaded holes 118 of the main plate 108 are opposite to each other, and are respectively locked by bolts or the like (not shown) to realize electrostatic conduction between the main plate 108 and the second casing 104. The first housing 102 is engaged with the second housing 104, and the resisting portions 134 of the two elastic arms 122 of the conductive sheet 110 are abutted against the inner surface of the first conductive housing first housing 102. Electrostatic conduction between the main board 108, the second housing 104 and the first housing 102 will electromagnetically pass through the conductive solid Block 114 is derived to prevent electromagnetic interference.

The conductive sheet 110 can simultaneously conduct static electricity between the three objects, and solves the problem of internal structural disorder caused by the electrostatic conduction of the copper foil of the electronic device in the prior art, thereby saving space.

The above is only the preferred embodiment of the present invention, and the present invention is not limited thereto, and various modifications and changes can be made to the present invention. Any modifications, equivalents, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the appended claims.

102‧‧‧First housing

104‧‧‧Second housing

106‧‧‧floor

108‧‧‧ motherboard

110‧‧‧Conductor

112‧‧‧ accommodating chamber

114‧‧‧ Conductive fixed block

116‧‧‧First threaded hole

118‧‧‧Second threaded hole

Claims (9)

A conductive sheet for guiding static electricity, wherein the conductive sheet comprises a support portion for contacting the second housing, a resilient arm extending from the support portion for contacting the first housing, and a self-supporting portion The ends extend outwardly and are respectively fixed on the main board disposed between the first housing and the second housing and the two fixing portions on the second housing, and the conductive sheet is simultaneously turned on by the elastic arm and the two fixing portions. Static electricity between a housing, a second housing, and a motherboard. The conductive sheet of claim 1, wherein the elastic arm is arched upward from the base and is arcuate. The conductive sheet of claim 2, wherein the end of the elastic arm that is away from the base is bent downward to form a resisting portion for abutting the second housing. The conductive sheet according to claim 1, wherein the support portion includes an elongated base portion parallel to the two fixing portions and two connecting portions extending vertically upward from both end portions of the base portion. An electronic device includes a grounded first housing, a second housing that is engaged with the first housing, and a main board disposed between the first housing and the second housing, the improvement being: the electronic The device further includes a conductive sheet, the conductive sheet includes a resilient arm that abuts against the first housing to guide the static electricity on the first housing, and two fixing portions respectively fixed to the main board and the second housing The conductive sheet uses the two fixing portions and the elastic arm to achieve electrostatic conduction between the main board, the second housing, and the first housing. The electronic device of claim 5, wherein the conductive sheet comprises a base, the elastic arm arching upward from the base and being arcuate to abut the first housing. The electronic device of claim 6, wherein the end of the elastic arm that is away from the base is bent downward to form a resisting portion for abutting the first housing. The electronic device of claim 6, wherein the conductive sheet further comprises a base Two connecting portions extending upward at both ends and the two fixing portions of the two connecting portions away from the end of the base and extending in parallel with the base. The electronic device of claim 5, wherein the second housing is provided with a conductive fixing block for grounding, and the conductive sheet is fixed on the conductive fixing block.