TWI795983B - Electronic device - Google Patents

Abstract

The present invention provides an electronic device, which includes a housing, a circuit board arranged in the housing, a first metallic shielding cover mounted on the circuit board, at least one electrical connection module mounted on the circuit board, and a flexible conductor. The first metallic shielding cover and the circuit board are commonly grounded, and at least one of the electrical connection module is located at one side of the first metallic shielding cover. The at least one of the electrical connection module includes a connector and a second metallic shielding cover that is arranged outside of the connector. The flexible conductor connects the second metallic shielding cover and the first metallic shielding cover, and the at least one electrical connection module is covered by the flexible conductor.

Description

electronic device

The invention relates to an electronic device, in particular to an electronic device with an electromagnetic shielding structure.

Existing wireless communication devices (such as: notebook computers, smart phones, Internet of Things devices, tablet computers, or other related devices) usually have antennas and USB ports. However, with the thinning of wireless communication devices, USB ports and antennas The distance becomes closer and closer. When an external storage device is plugged into the USB interface for data access to the external storage device, the wireless transmission performance of the antenna will be affected by the data access signal.

Therefore, the inventor believes that the above-mentioned defects can be improved, Naite devoted himself to research and combined with the application of scientific principles, and finally proposed an invention with reasonable design and effective improvement of the above-mentioned defects.

An embodiment of the present invention is to provide an electronic device, which can effectively improve possible defects of existing electronic devices.

The embodiment of the present invention discloses an electronic device, which includes: a casing; a circuit board disposed in the casing; a first metal shield mounted on the circuit board, and the first metal shield is connected to the circuit board. The circuit board forms a common ground connection; at least one electrical connection module is installed on the circuit board; wherein, at least one of the electrical connection modules is arranged on one side of the first metal shield, and at least one of the The electrical connection module includes: a connector; and a second metal shield disposed on the periphery of the connector; and a flexible conductive member connected to the second metal shield and the first metal shield , and the flexible conductive member covers at least one of the electrical connection modules.

The embodiment of the present invention also discloses an electronic device, which includes: a casing; a circuit board disposed in the casing; a first metal shield mounted on the circuit board, and the first metal shield A common ground connection is formed with the circuit board; at least one electrical connection module is installed on the circuit board; wherein at least one electrical connection module is arranged on one side of the first metal shield, and at least one The electrical connection module includes: a connector; and a second metal shield disposed on the periphery of the connector; and a conductive elastic member, at least one of the connectors of the electrical connection module passes through the The conductive elastic member is electrically connected to the casing.

In summary, the electronic device disclosed in the embodiment of the present invention has a common ground structure (or electromagnetic shielding structure) formed by the electrical connection module being matched with the flexible conductive member and/or the conductive elastic member. , which is obviously different from the electromagnetic shielding structure of existing electronic devices, and can still greatly improve the electromagnetic shielding performance of the connector when the internal space of the electronic device is limited (for example: reduce the interfere with wireless signals).

In order to further understand the characteristics and technical content of the present invention, please refer to the following detailed description and drawings related to the present invention, but these descriptions and drawings are only used to illustrate the present invention, rather than to make any statement on the scope of protection of the present invention. limit.

The following is an illustration of the implementation of the "electronic device" disclosed in the present invention through specific specific examples. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various modifications and changes can be made to the details in this specification based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only for simple illustration, and are not drawn according to the actual size, which is stated in advance. The following embodiments will further describe the relevant technical content of the present invention in detail, but the disclosed content is not intended to limit the protection scope of the present invention.

It should be understood that although terms such as "first", "second", and "third" may be used herein to describe various elements or signals, these elements or signals should not be limited by these terms. These terms are mainly used to distinguish one element from another element, or one signal from another signal. In addition, the term "or" used herein may include any one or a combination of more of the associated listed items depending on the actual situation.

[Example 1]

Please refer to Fig. 1 and Fig. 2, which is the first embodiment of the present invention. This embodiment discloses an electronic device 100 , which may be a wireless communication device with electromagnetic shielding requirements, but the present invention is not limited thereto.

Wherein, the electronic device 100 in this embodiment includes a housing 1, a display screen 2 mounted on the housing 1, a shielding metal plate 3 disposed on one side of the display screen 2, and a shielding metal plate 3 disposed on the housing 1. A circuit board 4 and an antenna 5 in the housing 1, a first metal shield 6 mounted on the circuit board 4 and at least one electrical connection module 7 are located on one side of the at least one electrical connection module 7 A flexible conductive member 8 and a conductive elastic member 9 located on the other side of at least one electrical connection module 7 .

It should be noted that although the electronic device 100 is described as including the above-mentioned components in this embodiment, the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, the electronic device 100 can selectively omit the soft conductive member 8 or the conductive elastic member 9 according to design requirements, and the electronic device 100 It can also be used (for example: sold) or used with other components when at least one of the display screen 2 , the shielding metal plate 3 , and the antenna 5 is omitted. The structure of each component of the electronic device 100 in this embodiment will be firstly introduced below, and then the connection relationship between each component of the electronic device 100 will be described in due course.

In this embodiment, the housing 1 is described as a two-piece structure with an opening 121. The housing 1 includes a back cover 11 and a frame 12 detachably mounted on the back cover 11. , and the opening 121 of the housing 1 is defined by the inner edge of the frame 12 in this embodiment, and the frame 12 may be made of non-metallic material, but the present invention Not limited thereto, for example, in other unillustrated embodiments of the present invention, the housing 1 can also omit the frame 12 and use a U-shaped back cover 11 to implement.

Furthermore, the back cover 11 includes a grounding area 111 and an insulating area 112 connected to the grounding area 111 , and the area of the grounding area 111 may be at least three times that of the insulating area 112 . Furthermore, the grounding area 111 is completely made of metal in this embodiment, but in other embodiments of the present invention not shown, the grounding area 111 may include an insulating sheet and form The grounding of the plurality of metal laser engravings on the insulating sheet is used to connect the grounding plane of the circuit board 4, the first metal shield 6, the electrical connector module 7 and The housing 1 performs a complete system ground bond.

Furthermore, the display screen 2 is disposed in the opening 121 of the casing 1, and the shielding metal plate 3 covers at least 80% of the inner surface of the display screen 2, so that the The arrangement of the shielding metal plate 3 can effectively shield the electromagnetic interference between the display screen 2 and other components in the casing 1 .

The circuit board 4 is disposed on the back cover 11 (eg, the ground area 111 ), and the ground plane (not shown) of the circuit board 4 is electrically coupled to the back cover 11 (eg, the ground area 111 ). : the grounding area 111 ), so that the circuit board 4 can form a common connection with the grounding area 111 of the back cover 11 . In addition, the display screen 2 and at least one of the electrical connection modules 7 are electrically coupled to the circuit board 4 to realize signal transmission between each other.

The antenna 5 is disposed on the insulating area 112 of the back cover 11, and the antenna 5 is electrically connected to the ground area 111 and the circuit board 4, so that the antenna 5 can pass through the insulating area 112 for wireless signal transmission. Wherein, the antenna 5 includes a main antenna 51 and a secondary antenna 52 located on the opposite side of the insulation area 112 in this embodiment, and the main antenna 51 or the secondary antenna 52 can support LTE, GPS as required and/or multi-band operation of Wi-Fi. Wherein, the main antenna 51 and the secondary antenna 52 can also both be LTE antennas, and their operating frequency range is 700MHz-2600MHz, so as to enhance the transmission performance of the electronic device 100 .

The first metal shield 6 is located on the side of the circuit board 4 away from the back cover 11 (such as: the upper side of the circuit board 4 in FIG. 1 ), and the first metal shield 6 covers On the outside of a plurality of electronic components (not shown) installed on the circuit board 4 . Wherein, the first metal shield 6 forms a common ground connection with the circuit board 4 (eg, the ground plane).

At least one of the electrical connection modules 7 and the first metal shield 6 are installed on the same board surface of the circuit board 4 (such as: the top surface of the circuit board 4 in FIG. 1 ), and the The electrical connection module 7 is disposed on one side of the first metal shield 6 (eg, the right side of the first metal shield 6 in FIG. 1 ). Wherein, the distance D3 between at least one of the electrical connection modules 7 and the shielding metal plate 3 is between 0.5 mm (mm) and 2 mm, and at least one of the electrical connection modules 7 and the antenna 5 ( For example: the main antennas 51 ) are separated by a predetermined distance D5 less than 50 mm. It should be noted that the number of at least one electrical connection module 7 included in the electronic device 100 in this embodiment is taken as an example, but the present invention is not limited thereto.

The electrical connection module 7 includes a connector 71 and a second metal shield 72 disposed on the periphery of the connector 71, and the connector 71 is connected by a C-type USB3.1 in this embodiment. device to illustrate, but the present invention is not limited thereto. Wherein, the connector 71 includes an insertion interface 711 exposed from the housing 1 for an external device (not shown in the figure, such as a C-type USB storage device) along a width direction W Docking. Further, the part of the connector 71 corresponding to the socket 711 (such as: the right end part of the connector 71 in FIG. 1 ) protrudes from the circuit board 4 (that is, corresponding to The circuit board 4 is suspended).

Furthermore, the connector 71 includes a plurality of pins 712 welded to the circuit board 4, and the second metal shield 72 is formed with a viewing window 721 exposing the plurality of pins 712, for use In order to provide inspection of the welding status between the connector 71 and the circuit board 4 during the production process. More specifically, the connector 71 is mostly covered by the second metal shield 72 in other directions except its front side (such as: the insertion port 711 ) and the bottom side, and the second metal The top edge of the shielding case 72 is preferably arranged approximately at the same height as the top edge of the first metal shielding case 6 in a height direction H. As shown in FIG.

It should be noted that the height direction H is perpendicular to the width direction W (or the circuit board 4 ) in this embodiment, and for the convenience of description, the height direction H and the width direction One direction of W is defined as a length direction L in this embodiment, but the present invention is not limited thereto.

The flexible conductive member 8 is described as a flat conductive fabric in this embodiment, but the present invention is not limited thereto. Wherein, the flexible conductive member 8 is connected to the second metal shield 72 and the first metal shield 6, and the flexible conductive member 8 covers the electrical connection module 7 (such as: the flexible conductive member 8 covering the top edge of the second metal shield 72).

That is to say, the second metal shield 72 and the first metal shield 6 are electrically coupled to each other through the flexible conductive member 8, so that the second metal shield 72, the flexible The conductive member 8 and the first metal shield 6 can be commonly connected to the grounding area 111 of the casing 1 through the circuit board 4 .

Furthermore, the electrical connection module 7 is located in a coverage area of the flexible conductive member 8 along the height direction H. As shown in FIG. In this embodiment, the length L8 of the flexible conductive member 8 is approximately 1/8 times the wavelength corresponding to the operating frequency, and the width W8 of the flexible conductive member 8 is approximately 1/8 of the operating frequency. 8 times the wavelength, so that the flexible conductive member 8 can provide better anti-electromagnetic interference effect for the working frequency of the antenna 5, but the present invention is not limited thereto.

The conductive elastic member 9 (such as: conductive foam) is described as a column in this embodiment and it may include an elastic body 91 (such as: foam) and cover the outer surface of the elastic body 91 A conductive layer 92 (for example: conductive cloth) is provided so that the conductive elastic member 9 can be elastically deformed when pressed, but the present invention is not limited thereto.

Wherein, the conductive elastic member 9 is arranged on the housing 1, and the top edge of the conductive elastic member 9 and the top surface of the circuit board 4 are approximately at the same height in the height direction H. , so that the portion of the connector 71 corresponding to the socket 711 can be disposed on the conductive elastic member 9 . Furthermore, the width W9 of the conductive elastic member 9 is approximately 1/8 times the wavelength corresponding to the operating frequency.

More specifically, the conductive elastic member 9 is arranged on the grounding area 111 of the back cover 11, so that the connector 71 of the electrical connection module 7 can pass through the conductive elastic member 9 To electrically connect the casing 1 (for example: the grounding area 111 ). Accordingly, the second metal shield 72, the flexible conductive member 8, the first metal shield 6, the housing 1 (such as the grounding area 111), and the conductive elastic member 9 are connected to each other in this embodiment, so that the electrical signal of the connector 71 disposed inside it can be effectively shielded, reducing the impact of the connector 71 interfering with the wireless signal of the antenna 5, Thus, it has better wireless transmission quality.

Wherein, the flexible conductive member 8 and the conductive elastic member 9 need to be arranged at the edge of the socket 711 of the connector 71, preferably aligned with the edge of the socket 711, so as to quickly transmit the signal Under the ground, its anti-noise interference ability can be controlled within 3dB. If the flexible conductive member 8 and the conductive elastic member 9 are not aligned with the edge of the insertion port 711 (for example: the distance from the edge is greater than 0.1 mm), the generated noise will fall between 5dB-8dB. Based on the fact that the flexible conductive member 8 and the conductive elastic member 9 are roughly arranged in an L-shape with respect to the electrical connection module 7 in this embodiment, so that the connector 71 can be placed at the insertion port 711 A complete electromagnetic shielding structure is formed by the flexible conductive member 8 and the conductive elastic member 9 , thereby reducing the interference source at the plug interface 711 and improving the wireless transmission performance of the electronic device 100 .

As mentioned above, in this embodiment, the electronic device 100 is composed of a common ground structure (or electromagnetic shielding) through the electrical connection module 7 collocated with the flexible conductive member 8 and/or the conductive elastic member 9. structure), which is obviously different from the electromagnetic shielding structure of existing electronic devices, and can greatly improve the electromagnetic shielding performance of the connector 71 (for example: reduce the interference of the signal of the connector 71 to the wireless transmission signal of the antenna) .

Furthermore, the electrical connection module 7 does not need to be commonly connected to the frame 12 of the housing 1 by using the flexible conductive member 8 and/or the conductive elastic member 9 in this embodiment, According to this, the electronic device 100 can be applied to the design of no metal frame, and it can also facilitate the thinning of the electronic device 100, for example: only the electrical connection module 7 and the shielding metal plate 3 Narrow space (for example: the stated distance is between 0.5 mm and 2 mm).

Furthermore, in this embodiment, the electronic device 100 cooperates with the flexible conductive member 8 and/or the conductive elastic member 9 through the electrical connection module 7, so that the antenna 5 operates at the operating frequency The noise can be suppressed, and the noise is an electrical signal generated by the connector 71 for accessing data, and the interference of the suppressed noise can be controlled within 3dB, so that the antenna 5 has better communication quality. For example, the electronic device 100 disclosed in this embodiment can meet the test requirements in the corresponding specifications, such as the radio frequency interference (Radio Frequency Interference, RFI) test requirements in the USB-IF specification.

[Example 2]

Please refer to FIG. 3 to FIG. 5 , which are the second embodiment of the present invention. Since this embodiment is similar to the above-mentioned first embodiment, the similarities between the two embodiments will not be repeated, and the differences between this embodiment and the above-mentioned first embodiment (such as: the conductive elastic member 9) are roughly described as follows :

In this embodiment, the conductive elastic member 9 and the flexible conductive member 8 are arranged on both sides of at least one of the electrical connection modules 7 to ground at least one of the electrical connection modules 7 . Wherein, the number of at least one electrical connection module 7 is one in this embodiment, so the width W9 of the conductive elastic member 9 corresponds to 1/8 times the wavelength of the operating frequency.

In more detail, a first ground pad 41 and a second ground pad 42 adjacent to the first ground pad 41 are formed on the bottom surface of the circuit board 4 facing the back cover 11, and the first ground pad 41 The pad 41 and the second ground pad 42 are arranged along the width direction W. As shown in FIG. That is to say, the first ground pad 41 and the second ground pad 42 are electrically connected to the ground plane (not shown) of the circuit board 4 .

Furthermore, in this embodiment, the conductive elastic member 9 has a substantially b-shaped cross-section perpendicular to the length direction, and the width W9 of the conductive elastic member 9 is approximately 1/8 of the operating frequency times the wavelength. Wherein, the conductive layer 92 has a covering section 921 covering the elastic body 91, a first extending section 922 extending from one end of the covering section 921, and a first extending section 922 extending from the other end of the covering section 921. A second extension section 923 is extended. Wherein, the first extension section 922 is connected to the first ground pad 41 of the circuit board 4, and the first extension section 922 is stacked on the second extension section 923, and the second extension section 923 protrudes from the first extension section 922 and is connected to the second ground pad 42 of the circuit board 4 .

Accordingly, based on the fact that the flexible conductive member 8 and the conductive elastic member 9 are roughly arranged in a U shape relative to the electrical connection module 7 in this embodiment, so that the connector 71 can be connected to the socket The interface 711 forms a more complete electromagnetic shielding structure through the soft conductive member 8 and the conductive elastic member 9, thereby reducing the interference source at the plug interface 711 to improve the wireless transmission of the electronic device 100 efficacy.

[Embodiment three]

Please refer to FIG. 6 and FIG. 12 , which is the third embodiment of the present invention. Since this embodiment is similar to the first and second embodiments above, the similarities between the two embodiments will not be repeated, and the differences between this embodiment and the first and second embodiments above (such as: the electrical connection module 7 and its corresponding components) are roughly described as follows:

In this embodiment, as shown in FIG. 6 and FIG. 7 , the number of the electrical connection modules 7 included in the electronic device 100 is two, and the two electrical connection modules 7 are installed on the The same side of the circuit board 4. Wherein, the two electrical connection modules 7 are arranged along the length direction L, and the flexible conductive member 8 connects the first metal shield 6 and the two electrical connection modules 7. The second metal shield 72, and the flexible conductive member 8 covers the two electrical connection modules 7 (such as: the flexible conductive member 8 covers the top edge of the two second metal shield 72 ).

To put it another way, the two electrical connection modules 7 are located within a coverage area of the flexible conductive member 8 along the height direction H. As shown in FIG. Wherein, the length L8 of the flexible conductive member 8 is approximately 1/4 times the wavelength corresponding to the operating frequency, and the width W8 of the flexible conductive member 8 is approximately 1/8 times the wavelength corresponding to the operating frequency. In addition, according to the content disclosed in this embodiment and the first embodiment, the length L8 of the flexible conductive member 8 may be 1/8 times the wavelength or 1/4 times the wavelength corresponding to the working frequency.

Furthermore, the electronic device 100 includes two conductive elastic members 9, and the two conductive elastic members 9 are respectively connected to the two electrical connection modules 7, and each of the conductive elastic members 9 The width W9 of the elastic member 9 corresponds to 1/8 times the wavelength of the operating frequency, but the present invention is not limited thereto. For example, in other unillustrated embodiments of the present invention, the number of the conductive elastic member 9 may also be one, and it is connected to the two electrical connection modules 7 at the same time. In addition, the relationship between each conductive elastic member 9 and the electrical connection module 7 connected thereto is the same as that described in Embodiment 1 and Embodiment 2, and will not be repeated here.

It should be noted that, in order to facilitate the presentation of the structure of the electronic device 100 that can effectively reduce the interference of the connector 71 on the wireless signal during signal transmission, this embodiment is further illustrated in FIG. 8 in the following description. ˜ FIG. 12 to assist in the verification, but the present invention is not limited thereto.

Wherein, FIG. 8 shows the noise intensity of the main antenna 51 of the electronic device 100 with and without addition (such as: curve C51a in FIG. 8 ) and without addition (such as: curve C51b in FIG. 8 ) of this embodiment. Comparison results of the noise intensity between the flexible conductive element 8 and the conductive elastic element 9 . Furthermore, FIG. 9 shows that the noise intensity of the secondary antenna 52 of the electronic device 100 is added (such as: curve C52a in FIG. 9 ) and not added (such as: curve C52b in FIG. 9 ) in this embodiment. The comparison result of the noise intensity between the flexible conductive member 8 and the conductive elastic member 9.

Further, it can be clearly seen from Fig. 8 and Fig. 9 that when the socket 711 of the connector 71 is opened for reading or writing, it can be seen that the flexible conductive member 8 is added. Compared with the characteristics of the conductive elastic member 9, the main antenna 51 can obviously be improved by 1dB to 8dB, and the improvement range is the greatest at high frequencies (such as the working frequency band of 1800MHz～2600MHz, especially the working frequency band of 1843MHz～1990MHz) It is obvious (for example: it can be improved by at least 5dB), and furthermore, it has the characteristics of blocking the noise generated by the connector 71 due to access, so that the wireless communication quality is not affected by the noise. From the point of view of the main antenna 51 or the auxiliary antenna 52, the ability to suppress noise interference can be within 3dB, and has good shielding properties.

In addition, FIG. 10 is a comparison diagram of noise intensity when the electronic device 100 of this embodiment is configured with the flexible conductive elements 8 of different lengths L8. Wherein, the curve C8a corresponds to the length L8 being 1/4 wavelength, the curve C8b corresponds to the length L8 being 1/8 wavelength, the curve C8c corresponds to the length L8 being 1/16 wavelength, and the curve C8d corresponds to the The length L8 is 1/32 wavelength. It can be clearly seen from FIG. 10 that the dimensional variation trend of the flexible conductive member 8 is that the smaller the length L8 is, the worse its ability to suppress noise will be. That is to say, the length L8 of the flexible conductive member 8 is preferably 1/8 times the wavelength or 1/4 times the wavelength corresponding to the operating frequency, so that the wireless transmission has a better anti-noise effect.

In addition, FIG. 11 and FIG. 12 are comparison diagrams of noise intensity of the electronic device 100 under different structural configurations. In Fig. 11, the curve C9a corresponds to the structural configuration of the second embodiment, the curve C9b corresponds to the structural configuration of the first embodiment, the curve C9a' corresponds to the structural configuration of the second embodiment but does not use the flexible conductive member 8, and the curve C9b' corresponds to the structural configuration of Embodiment 1 but does not use the flexible conductive member 8 . Furthermore, in FIG. 12 , the curve C8 corresponds to the configuration of the first or second embodiment without using the conductive elastic member 9 .

Furthermore, it can be clearly seen from FIG. 11 that when the electronic device 100 does not use the flexible conductive member 8, the conductive elastic member 9 uses the structure of the second embodiment compared with the structure of the first embodiment. In other words, the electronic device 100 will have a better ability to suppress noise. Furthermore, it can be clearly seen from FIG. 12 that when the electronic device 100 does not use the conductive elastic member 9 , its ability to suppress noise will be reduced.

That is to say, it can be seen from Fig. 11 and Fig. 12 that the electronic device 100 preferably adopts the soft conductive member 8 and the conductive elastic member 9 at the same time, so that they can be multiplied by matching each other. noise suppression effect. Among them, the flexible conductive element 8 has the greatest influence on the electromagnetic shielding performance of the electronic device 100 , so when the flexible conductive element 8 is not used, its ability to suppress noise is the worst.

[Technical effects of the embodiments of the present invention]

In summary, the electronic device disclosed in the embodiment of the present invention has a common ground structure (or electromagnetic shielding structure) formed by the electrical connection module being matched with the flexible conductive element and/or the conductive elastic element, This is obviously different from the electromagnetic shielding structure of existing electronic devices, and it can still greatly improve the electromagnetic shielding performance of the connector when the internal space of the electronic device is limited (such as: reducing the impact of the connector on signal transmission) interfere with wireless signals).

Furthermore, in this embodiment, the electrical connection module does not need to be connected to the frame of the housing by using the flexible conductive member and/or the conductive elastic member, so that the The electronic device can be suitable for the design of no metal frame, and can also facilitate the thinning of the electronic device, for example: only a small space is left between the electrical connection module and the shielding metal plate (such as: the distance between 0.5 mm and 2 mm).

Furthermore, in this embodiment, the electronic device is matched with the flexible conductive member and/or the conductive elastic member through the electrical connection module, so that the antenna can suppress the The noise generated by accessing the connector (for example, the ability to suppress noise interference is controlled within 3dB), thereby enabling the antenna to have better communication quality. For example, the electronic device disclosed in this embodiment can meet the test requirements in the corresponding specifications, such as the radio frequency interference (Radio Frequency Interference, RFI) test requirements in the USB-IF specification.

The content disclosed above is only a preferred feasible embodiment of the present invention, and does not limit the patent scope of the present invention, so all equivalent technical changes made by using the description and drawings of the present invention are included in the patent scope of the present invention Inside.

100: Electronic device 1: shell 11:Back cover 111: grounding area 112: Insulation area 12: border 121: opening 2: display screen 3: shielding metal plate 4: Circuit board 41: First ground pad 42:Second ground pad 5: Antenna 51: Main antenna 52: Secondary antenna 6: The first metal shield 7: Electrical connection module 71: Connector 711: socket 712: Pin 72: The second metal shield 721: View window 8: Soft conductive parts 9: Conductive elastic parts 91:Elastomer 92: Conductive layer 921: Coating section 922: The first extension 923: Second extension L: length direction W: width direction H: height direction L8: length W8: width W9: width D3: Distance D5: preset distance C51a, C51b, C52a, C52b, C8a, C8b, C8c, C8d, C9a, C9b, C9a', C9b', C8: Curves

FIG. 1 is a schematic side view of an electronic device according to Embodiment 1 of the present invention.

FIG. 2 is a schematic top view of an electronic device according to Embodiment 1 of the present invention.

FIG. 3 is a schematic side view of an electronic device according to Embodiment 2 of the present invention.

FIG. 4 is a schematic top view of an electronic device according to Embodiment 2 of the present invention.

FIG. 5 is a partially exploded perspective view of an electronic device according to Embodiment 2 of the present invention.

FIG. 6 is a schematic top view (1) of an electronic device according to Embodiment 3 of the present invention.

FIG. 7 is a schematic top view (2) of an electronic device according to Embodiment 3 of the present invention.

FIG. 8 is a comparison diagram of noise intensity corresponding to the main antenna of the electronic device according to the third embodiment of the present invention.

FIG. 9 is a comparison diagram of the noise intensity corresponding to the secondary antenna of the electronic device according to the third embodiment of the present invention.

FIG. 10 is a comparison diagram of the noise intensity of the electronic device according to the third embodiment of the present invention when flexible conductive elements with different lengths are arranged.

FIG. 11 and FIG. 12 are comparison diagrams of the noise intensity of the electronic device of the present invention under different structural configurations.

100: Electronic device

1: Shell

11:Back cover

12: border

121: opening

2: display screen

3: shielding metal plate

4: Circuit board

6: The first metal shield

7: Electrical connection module

71: Connector

711: socket

712: Pin

72: The second metal shield

721: View window

8: Soft conductive parts

9: Conductive elastic parts

91:Elastomer

92: Conductive layer

W: width direction

H: height direction

D3: Distance

Claims (11)

An electronic device, comprising: a casing; a circuit board disposed in the casing; a first metal shield mounted on the circuit board, and the first metal shield forms with the circuit board common ground connection; at least one electrical connection module is installed on the circuit board; wherein, at least one of the electrical connection modules is arranged on one side of the first metal shield, and at least one of the electrical connection modules Including: a connector; and a second metal shield, arranged on the periphery of the connector; and a flexible conductive member, connected to the second metal shield and the first metal shield, and the flexible The conductive element covers at least one of the electrical connection modules. The electronic device according to claim 1, wherein the electronic device includes a display screen and a shielding metal plate, the casing has an opening, the display screen is arranged in the opening, and the shielding metal plate The board is arranged on one side of the display screen, and the distance between at least one of the electrical connection modules and the shielding metal plate is between 0.5 mm (mm) and 2 mm. The electronic device according to claim 2, wherein the electronic device includes an antenna, the antenna is disposed in the housing, and at least one of the electrical connection modules is separated from the antenna by a distance less than 50 mm preset distance. The electronic device according to claim 3, wherein the antenna has an operating frequency, and the length of the flexible conductive member is 1/8 times the wavelength corresponding to the operating frequency Or 1/4 times the wavelength, the width of the flexible conductive member is 1/8 times the wavelength corresponding to the operating frequency. The electronic device according to claim 1, wherein the housing includes a grounding area made of metal, the electronic device includes a conductive elastic member, and at least one of the connectors of the electrical connection module passes through the The conductive elastic member is electrically connected to the grounding area of the casing. The electronic device according to claim 5, wherein the conductive elastic member and the soft conductive member are respectively provided on both sides of at least one of the electrical connection modules, so as to ground at least one of the electrical connection modules ; Wherein, the electronic device includes an antenna, and the antenna has an operating frequency, the length of the flexible conductive member is 1/8 times the wavelength or 1/4 times the wavelength corresponding to the operating frequency, the soft The width of the conductive element corresponds to 1/8 times the wavelength of the operating frequency, and the width of the conductive elastic element corresponds to 1/8 times the wavelength of the operating frequency. The electronic device according to claim 5, wherein the conductive elastic member includes an elastic body and a conductive layer, and the conductive layer has a covering section covering the elastic body, from the covering section a first extension section extending from one end, and a second extension section extending from the other end of the covering section; wherein the first extension section is connected to a first ground pad of the circuit board, and the The first extension section is stacked on the second extension section, and the second extension section protrudes from the first extension section and is connected to a second ground pad of the circuit board. The electronic device as claimed in claim 1, wherein the connector includes a plurality of pins soldered to the circuit board, and the second metal shield forms a view that exposes a plurality of the pins window. The electronic device according to claim 1, wherein the number of at least one electrical connection module is two, and the two electrical connection modules are installed on the same side of the circuit board; wherein the electronic The device includes an antenna, and the antenna has an operating frequency, the length of the flexible conductive member is 1/4 times the wavelength corresponding to the operating frequency, and the width of the flexible conductive member is 1/4 wavelength corresponding to the operating frequency. 1/8 times the wavelength. The electronic device according to claim 9, wherein the electronic device comprises two conductive elastic members, and the two conductive elastic members are respectively connected to the two electrical connection modules, and the width of each of the conductive elastic members is is 1/8 times the wavelength corresponding to the operating frequency. An electronic device, which includes: a casing, including a grounding area made of metal; a circuit board, arranged in the casing; a first metal shield, installed on the circuit board, and the first The metal shield forms a common connection with the circuit board; at least one electrical connection module is installed on the circuit board; wherein at least one of the electrical connection modules is arranged on one side of the first metal shield, And at least one of the electrical connection modules includes: a connector; and a second metal shield disposed on the periphery of the connector; and a conductive elastic member, the connection of at least one of the electrical connection modules The device is electrically connected to the grounding area of the casing through the conductive elastic member.

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