CN210130000U - Electrostatic discharge protection structure and electronic equipment - Google Patents
Electrostatic discharge protection structure and electronic equipment Download PDFInfo
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- CN210130000U CN210130000U CN201920307780.2U CN201920307780U CN210130000U CN 210130000 U CN210130000 U CN 210130000U CN 201920307780 U CN201920307780 U CN 201920307780U CN 210130000 U CN210130000 U CN 210130000U
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- planar conductor
- electrostatic discharge
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Abstract
The utility model discloses an electrostatic discharge protective structure and electronic equipment for solve the technical problem that can not carry out effectual ESD protection to the rigid-flex board that exists among the prior art. The electrostatic discharge protection structure includes: the flexible planar conductor is electrically connected with the grounding end and is attached to the joint of the flexible board and the rigid board of the rigid-flexible combined board, and the width of the flexible planar conductor is not less than that of the flexible board; the flexible planar conductor is arranged on the grounding end, wherein the binding surface where the flexible planar conductor is arranged is a surface facing an object generating electrostatic discharge, and is used for discharging static electricity generated by the object generating electrostatic discharge to the grounding end.
Description
Technical Field
The utility model belongs to the technical field of the electron and specifically relates to an electrostatic discharge protective structure and electronic equipment are related to.
Background
As the flexible-rigid board is widely applied to various electronic devices, the difficulty of electrostatic discharge (ESD) protection for the flexible-rigid board is also increasing.
ESD problems are prone to arise due to the exposed solder joints in the soft and hard plate portions, as well as in the hard plate portions near the joints. When the rigid-flex circuit is subjected to ESD protection, because the space of the hard-flex circuit is very limited and the area is small, if a traditional hardware circuit ESD protection method is adopted, a Through Silicon Via (TSV) tube in the ESD protection circuit is difficult to place in the TSV tube, and further the rigid-flex circuit is difficult to perform ESD protection.
In view of this, how to effectively perform ESD protection on the rigid-flex board becomes a technical problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electrostatic discharge protective structure and electronic equipment for solve the technical problem that can not carry out effectual ESD protection to the rigid-flex board that exists among the prior art.
In a first aspect, for solving the above technical problem, an embodiment of the utility model provides a pair of electrostatic discharge protection structure is applied to the rigid-flex board, the rigid-flex board includes flexbile plate and rigid board, this electrostatic discharge protection structure:
the flexible planar conductor is electrically connected with a grounding end and is attached to the joint of the flexible board and the rigid board, and the width of the flexible planar conductor is not less than that of the flexible board; the flexible planar conductor is arranged on the grounding end, wherein the binding surface where the flexible planar conductor is arranged is a surface facing an object generating electrostatic discharge, and is used for discharging static electricity generated by the object generating electrostatic discharge to the grounding end.
The flexible planar conductor with the width not smaller than that of the flexible board is attached to the joint of the flexible board and the rigid board on the side, facing the object generating the electrostatic discharge, of the soft and hard combination board, and the flexible planar conductor is electrically connected with the grounding end, so that static electricity generated by the object generating the electrostatic discharge is discharged to the grounding end through the flexible planar conductor, and therefore the ESD protection is effectively carried out on the soft and hard combination board.
Optionally, the flexible planar conductor further comprises an extended protection portion, and the extended protection portion covers a designated area of the flexible board; the designated area is an area that is measured to be affected by air static electricity generated by the object.
Optionally, the method further includes:
and the insulating part is attached to the exposed welding points and/or the conductive devices in the hard board.
Optionally, the flexible planar conductor is kept at a safe distance from the solder joint and/or the conductive device that is not electrically connected.
Optionally, the flexible planar conductor is a conductive cloth.
In a second aspect, an embodiment of the present invention provides an electronic device, an electrostatic discharge protection structure used by a rigid-flex board in the electronic device is the electrostatic discharge protection structure of the first aspect.
Through the utility model discloses technical scheme in the above-mentioned one or more embodiments of the embodiment, the embodiment of the utility model provides a have following technological effect at least:
the utility model provides an in the embodiment, through the flexible sheet of the one side towards producing the electrostatic discharge object at the rigid-flex board and the combination department of rigid board, the laminating width is not less than the flexible planar conductor of the width of flexible sheet to carry out the electricity with this flexible planar conductor and earthing terminal and be connected, the static that makes the electrostatic discharge object produce leaks the earthing terminal through flexible planar conductor, thereby effectually carries out ESD protection to the rigid-flex board.
Drawings
FIG. 1 is a schematic structural diagram of an electronic device with a rigid-flex board;
FIG. 2 is a schematic view of a joint between a flexible board and a rigid board in the rigid-flexible board;
fig. 3 is a schematic structural diagram of an esd protection structure according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an embodiment of the present invention for measuring the designated area affected by the static electricity of the air generated by the object generating electrostatic discharge;
fig. 5 is a schematic structural diagram of another flexible planar conductor according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating a position of an exposed solder joint in a hard board according to an embodiment of the present invention;
fig. 7 is a first schematic structural diagram of a flexible planar conductor provided with an insulating member according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a flexible planar conductor provided with an insulating member according to an embodiment of the present invention.
Detailed Description
The embodiment of the utility model provides an electrostatic discharge protective structure and electronic equipment to solve the technical problem that can not carry out effectual ESD protection to the rigid-flex board that exists among the prior art.
In order to solve the technical problems, the general idea of the embodiment of the present application is as follows:
the utility model provides an electrostatic discharge protective structure is applied to soft or hard combination board, and soft or hard combination board includes flexbile plate and hard board, and this electrostatic discharge protective structure includes: the flexible planar conductor is electrically connected with the grounding end and is attached to the joint of the flexible board and the rigid board, and the width of the flexible planar conductor is not less than that of the flexible board; the flexible planar conductor is arranged on the flexible planar conductor, and the flexible planar conductor is arranged on the flexible planar conductor.
In the scheme, the flexible planar conductor with the width not smaller than that of the flexible plate is attached to the joint of the flexible plate and the rigid plate on the surface of the rigid-flexible combined plate facing to the object generating electrostatic discharge, and the flexible planar conductor is electrically connected with the grounding end, so that static electricity generated by the object generating electrostatic discharge is discharged to the grounding end through the flexible planar conductor, and the rigid-flexible combined plate is effectively subjected to ESD protection.
In order to better understand the technical solutions, the following detailed descriptions of the technical solutions of the present invention are provided through the drawings and the specific embodiments, and it should be understood that the specific features of the embodiments and the embodiments of the present invention are the detailed descriptions of the technical solutions of the present invention, rather than the limitations of the technical solutions of the present invention, and the technical features of the embodiments and the embodiments of the present invention can be combined with each other without conflict.
Before the present solution is introduced, the structure of the rigid-flex board will be briefly described.
Referring to fig. 1, an electronic device is shown, which is composed of a rigid-flex board 1 and an actuator 2. The rigid-flex board 1 comprises a rigid board 11 and a flexible board 12. The rigid Board 11 may be a Printed Circuit Board (PCB), and the Flexible Board 12 may be a Flexible Printed Circuit Board (FPC), and the rigid Board 11 and the actuator 2 (e.g., a switch) are electrically connected through the Flexible Board 12 extending from the rigid Board 11.
It should be noted that the rigid-flexible board is composed of at least one rigid board and at least one flexible board, and the two rigid boards can be connected through one flexible board. Fig. 1 shows only one connection form of the rigid board and the flexible board, and in practical applications, the connection form of the rigid board and the flexible board can be various.
Referring to fig. 2 and 3, fig. 2 is a schematic diagram of a joint between a flexible board and a rigid board in a rigid-flexible board, and fig. 3 is a schematic diagram of an electrostatic discharge protection structure, an embodiment of the present invention provides an electrostatic discharge protection structure applied to a rigid-flexible board 1, where the rigid-flexible board 1 includes a flexible board 12 and a rigid board 11, and as shown in fig. 2 and 3, the electrostatic discharge protection structure includes:
a flexible planar conductor 3 electrically connected to a ground terminal (not shown in the figure, and the circular portion is connected to the ground terminal in fig. 2), and attached to a joint 13 between the flexible board and the rigid board, wherein the width of the flexible planar conductor 3 is not less than the width of the flexible board 12; the attaching surface of the flexible planar conductor 3 is a surface facing an object generating electrostatic discharge (not shown in the drawings, it is assumed that the surface of the flexible planar conductor 3 shown in the drawings is directly opposite to the object generating electrostatic discharge), and is used for discharging static electricity generated by the object generating electrostatic discharge to a ground terminal.
The object for generating electrostatic discharge may be a gap of a housing for encapsulating an electronic device, or may be a screw or the like mounted on the housing, and is not limited herein.
Referring to fig. 4 and 5, fig. 4 is a schematic view of a designated area under the influence of static electricity of air generated by an object generating electrostatic discharge, and is a schematic view of another flexible planar conductor shown in fig. 5, the flexible planar conductor 3 further includes an extended protection portion 31, and the extended protection portion 31 covers the designated area 14 of the flexible board; the designated area 14 is an area that is measured to be affected by the static electricity of the air generated by the object that generates the electrostatic discharge. The influence of the static electricity of the air on the flexible board is specifically that the static electricity of the air can contact the designated area, and the designated area is damaged along with the increase of the contact times of the static electricity of the air on the designated area, so that the flexible board is interfered by the static electricity.
In fig. 4, a designated area 14 affected by air static electricity generated by an object generating electrostatic discharge is illustrated as an area shown in a dotted line frame, and when the object generating electrostatic discharge generates static electricity at the joint 14 of the rigid-flex board 1, the object may also excite surrounding air to generate air static electricity, and by detecting a position area where the air static electricity drifts to the flexible board 12, the designated area 14 may be determined, and in order to prevent the generated air static electricity from affecting the flexible board 12, an extended protection portion 31 (as shown in fig. 5) of the flexible planar conductor 3 is provided in the designated area.
It should be noted that the flexible planar conductor with the extended protection portion may have other shapes besides the shape shown in fig. 5, and the specific shape may be determined according to the relative position of the flexible planar conductor 3 and the designated area 14 and the determined designated area 14, which is not limited herein.
Referring to fig. 6 and 7, fig. 6 is a schematic diagram illustrating the positions of exposed solder joints in a rigid board, and fig. 7 is a schematic diagram illustrating a first structure of a flexible planar conductor provided with an insulating member. The flexible planar conductor 3 further comprises an insulating member 32 attached to the exposed solder joints and/or conductive features of the rigid plate 11.
In fig. 6, the exposed solder joints in the hard plate 11 are shown in the dashed line boxes, and since the exposed solder joints are susceptible to electrostatic interference, the insulating members 32 need to be attached to the exposed solder joints in the hard plate 11 (the same process is performed on the hard plate 11 if there is a conductive device, which is not described herein again). A schematic view of the structure of the flexible planar conductor 3 provided with the insulating member 32 can be seen in fig. 7.
It should be noted that the insulating member 32 should at least completely cover the exposed solder joints and/or the conductive devices, the insulating member 32 may not overlap with the flexible planar conductor 3 as shown in fig. 7, or may overlap with the flexible planar conductor 3 as shown in fig. 8 (fig. 8 is a structural diagram of the flexible planar conductor provided with the insulating member), when the insulating member 32 overlaps with the flexible planar conductor 3, the flexible planar conductor 3 should be located above the insulating member 32, and the flexible planar conductor 3 may be a flexible planar conductor without an extension protection portion as shown in fig. 3, or a flexible planar conductor with an extension protection portion as shown in fig. 5, which is determined by practical circumstances and is not limited herein.
With continued reference to fig. 7 or 8, the flexible planar conductor 3 is maintained at a safe distance from the solder joint and/or the conductive device that is not electrically connected. That is, after the flexible planar conductor 3 is attached, the flexible planar conductor 3 is not in contact with the solder joint and/or the conductive device, so that the signal point or the conductive device corresponding to the solder joint is prevented from being directly grounded.
In the above embodiments provided by the present invention, the flexible planar conductor 3 and the extension protection portion 31 of the flexible planar conductor 3 may be specifically conductive cloth. The conductive cloth can conduct electricity and has good flexibility, so that the conductive cloth can adapt to the position change of the soft and hard combined plate at the combined position and can meet the requirement of ESD protection.
Based on same utility model the design, the utility model provides an embodiment provides an electronic equipment, the electrostatic discharge protective structure that soft or hard combines board among the electronic equipment used, for as above electrostatic discharge protective structure.
The utility model provides an in the embodiment, through the flexible sheet of the one side towards producing the electrostatic discharge object at the rigid-flex board and the combination department of rigid board, the laminating width is not less than the flexible planar conductor of the width of flexible sheet to carry out the electricity with this flexible planar conductor and earthing terminal and be connected, the static that makes the electrostatic discharge object produce leaks the earthing terminal through flexible planar conductor, thereby effectually carries out ESD protection to the rigid-flex board.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. The utility model provides an electrostatic discharge protective structure, is applied to soft or hard combination board, soft or hard combination board includes flexbile plate and hard board, its characterized in that includes:
the flexible planar conductor is electrically connected with a grounding end and is attached to the joint of the flexible board and the rigid board, and the width of the flexible planar conductor is not less than that of the flexible board; the flexible planar conductor is arranged on the grounding end, wherein the binding surface where the flexible planar conductor is arranged is a surface facing an object generating electrostatic discharge, and is used for discharging static electricity generated by the object generating electrostatic discharge to the grounding end.
2. The esd-protection structure of claim 1, wherein the flexible planar conductor further comprises an extended protection portion, the extended protection portion covering a designated area of the flexible board; the designated area is an area that is measured to be affected by air static electricity generated by the object.
3. The esd-protection structure of claim 1 or 2, further comprising:
and the insulating part is attached to the exposed welding points and/or the conductive devices in the hard board.
4. The esd-protection structure of claim 3, wherein the flexible planar conductor is maintained at a safe distance from the solder joint and/or the conductive device that is not electrically connected.
5. The esd-protection structure of claim 1 or 2, wherein the flexible planar conductor is a conductive cloth.
6. An electronic device, wherein the esd protection structure used in the rigid-flex board of the electronic device is the esd protection structure according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920307780.2U CN210130000U (en) | 2019-03-12 | 2019-03-12 | Electrostatic discharge protection structure and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920307780.2U CN210130000U (en) | 2019-03-12 | 2019-03-12 | Electrostatic discharge protection structure and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210130000U true CN210130000U (en) | 2020-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920307780.2U Active CN210130000U (en) | 2019-03-12 | 2019-03-12 | Electrostatic discharge protection structure and electronic equipment |
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| CN (1) | CN210130000U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109757030A (en) * | 2019-03-12 | 2019-05-14 | 华勤通讯技术有限公司 | A kind of electrostatic discharge protection structure and preparation method thereof, electronic equipment |
-
2019
- 2019-03-12 CN CN201920307780.2U patent/CN210130000U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109757030A (en) * | 2019-03-12 | 2019-05-14 | 华勤通讯技术有限公司 | A kind of electrostatic discharge protection structure and preparation method thereof, electronic equipment |
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Address after: 201210 Building 1, 399 Keyuan Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai Patentee after: Huaqin Technology Co.,Ltd. Address before: 201210 Building 1, 399 Keyuan Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai Patentee before: Huaqin Technology Co.,Ltd. Address after: 201210 Building 1, 399 Keyuan Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai Patentee after: Huaqin Technology Co.,Ltd. Address before: 201210 Building 1, 399 Keyuan Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai Patentee before: HUAQIN TELECOM TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |