CN110785005A - Air cushion protection type circuit board - Google Patents

Air cushion protection type circuit board Download PDF

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Publication number
CN110785005A
CN110785005A CN201911116741.5A CN201911116741A CN110785005A CN 110785005 A CN110785005 A CN 110785005A CN 201911116741 A CN201911116741 A CN 201911116741A CN 110785005 A CN110785005 A CN 110785005A
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Prior art keywords
circuit
circuit substrate
plate strip
circuit board
trigger detection
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CN201911116741.5A
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CN110785005B (en
Inventor
闫一方
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Xuzhou Bochuang Construction Development Group Co ltd
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Su Normal University Semiconductor Materials and Equipment Research Institute Pizhou Co Ltd
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/18Printed circuits structurally associated with non-printed electric components
    • H05K1/182Printed circuits structurally associated with non-printed electric components associated with components mounted in the printed circuit board, e.g. insert mounted components [IMC]
    • H05K1/184Components including terminals inserted in holes through the printed circuit board and connected to printed contacts on the walls of the holes or at the edges thereof or protruding over or into the holes
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/0201Thermal arrangements, e.g. for cooling, heating or preventing overheating
    • H05K1/0203Cooling of mounted components

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

The invention relates to an air cushion protection type circuit board, which adopts a brand-new circuit board structure design, designs and adds an air bag (5) which is positioned below a circuit substrate (1) and faces to circuit wiring, applies a detection trigger structure designed by combining a screw (8) to install, and clamps a sub-pipeline (13) of the air bag (5) aiming at a micro liquid compressed gas cylinder (4) through an upper pressure plate strip (6) and a lower pressure plate strip (7); based on circuit components (2) are shielded and protected by the protective cover (3), the circuit substrate (1) is attacked, the screw (8) is screwed, the looseness between the upper pressing plate strip (6) and the lower pressing plate strip (7) is triggered, and liquid compression is applied
Figure 100004_DEST_PATH_IMAGE002
By the action of the jet force, the whole air bag (5) is quickly filled, and the circuit components are shortened by the contact of the conductive film (11) on the surface of the air bag (5) and the circuit wiring on the lower surface of the circuit substrate (1)And the circuit causes the circuit components to be burnt, and the data safety is ensured.

Description

Air cushion protection type circuit board
Technical Field
The invention relates to an air cushion protection type circuit board, and belongs to the technical field of semiconductor circuit boards.
Background
The circuit board can be called as a printed circuit board or a printed circuit board, the circuit board is the most common device of electronic equipment, each electronic element on the circuit board executes work respectively to obtain the function of an electronic product, so various specific data are transmitted and operated on the circuit board, which often becomes a way for lawless persons to steal data, so how to protect the data in the circuit board from being stolen becomes an important aspect of circuit board protection.
Disclosure of Invention
The invention aims to solve the technical problem of providing an air cushion protection type circuit board, which adopts a brand-new circuit board structure design, designs a detection trigger type structure to respond in time, causes short circuit and burnout of circuit wiring, and improves the safety of self protection of the circuit board.
The invention adopts the following technical scheme for solving the technical problems: the invention designs an air cushion protection type circuit board, which comprises a circuit substrate and circuit components arranged on the circuit substrate; the circuit board comprises a circuit substrate, a circuit wiring printing layer, a circuit component, a circuit board and a circuit board, wherein the circuit wiring printing layer is distributed on the lower surface of the circuit substrate, each circuit component is respectively arranged at the corresponding position of the upper surface of the circuit substrate, pins of each circuit component respectively penetrate through the circuit substrate, and soldering tin is applied to realize that the pins are fixed with circuit wiring in the circuit wiring printing layer;
also comprises a protective cover and a micro liquid compression
Figure 100002_DEST_PATH_IMAGE002
A gas cylinder, a gas bag and each trigger detection device; the circuit board comprises a circuit substrate, a plurality of mounting areas, a plurality of connecting wires and a plurality of connecting wires, wherein the mounting areas are distributed on the periphery of the surface of the circuit substrate and have the same structure, and each mounting area comprises two mounting through holes penetrating through the upper surface and the lower surface;
the number of the trigger detection devices is equal to the number of the surface mounting areas of the circuit substrate, each trigger detection device corresponds to each mounting area one by one, the structures of the trigger detection devices are the same, and each trigger detection device comprises an upper pressing plate strip, a lower pressing plate strip, two screws and two stand columns; in each trigger detection device, the outer diameter of a screw is matched with the inner diameter of a mounting through hole in a corresponding mounting area, a linear groove is embedded in one end face of each upright column, the straight line where the groove is located is collinear with the straight line where the upright column is located, and the inner wall of the groove is arranged on a thread corresponding to the thread of the screw; the length of the upper pressing plate strip and the length of the lower pressing plate strip are both larger than the distance between the two mounting through holes in the corresponding mounting area on the circuit substrate; in each trigger detection device, the upper surface of an upper pressure plate strip fixedly covers the lower ends of two mounting through holes in a corresponding mounting area of a butt joint circuit substrate, the lower surface of a lower pressure plate strip fixedly covers the groove ends of two butted stand columns, the two stand columns are both vertical to the surface of the lower pressure plate strip, and the distance between the two stand columns is equal to the distance between the two mounting through holes in the corresponding mounting area;
the protective cover is made of opaque materials, the bottom of the protective cover is open, the size of the open bottom of the protective cover is larger than the size of the whole layout region of each circuit component on the upper surface of the circuit substrate, the open bottom of the protective cover is covered on the layout region of the circuit components on the upper surface of the circuit substrate, an extension surrounding edge is arranged along the periphery of the outer side of the open bottom of the protective cover, the extension surrounding edge is of a planar structure, and the size of the peripheral outline of the extension surrounding edge is matched with the size of the surface of the circuit; the upper pressing plate strip and the lower pressing plate strip are arranged in a vertically stacked and separable mode on the basis of the posture that the surfaces of the upper pressing plate strip and the lower pressing plate strip are parallel to each other, two screws vertically downwards pass through the positions, corresponding to the corresponding mounting areas, of the extension surrounding edge from the upper side of the extension surrounding edge, respectively and sequentially, then the two screws continuously pass through the mounting through holes, the upper pressing plate strip and the lower pressing plate strip in the corresponding mounting areas respectively and sequentially, and finally the two screws are screwed into the grooves of the stand columns; the bottom ends of two stand columns in each trigger detection device are respectively and fixedly arranged at the installation position of the circuit board, and the circuit board and the protective cover are fixed on the basis of each trigger detection device;
the miniature liquid compressed gas bottle is fixedly arranged below the circuit substrate, the air outlet of the miniature liquid compressed gas bottle is connected with one end of a main guide pipe, the other end of the main guide pipe is butted with the connecting ends of branch circuits, the number of the branch output ends on the branch circuits is equal to that of the trigger detection devices, the air bag is arranged below the circuit substrate, the surface of the air bag is covered with a conductive film, when the air bag is in a contraction state, the conductive film on the surface of the air bag is not contacted with the circuit wiring on the lower surface of the circuit substrate, the surface of the air bag is provided with air inlet nozzles with the number equal to that of the trigger detection devices, the branch output ends on the branch circuits are respectively butted with one end of a sub-pipeline, the other end of each sub-pipeline respectively penetrates through the region between the upper pressure plate strip and the lower pressure plate strip in each trigger detection device in a one, the neutron pipelines are arranged in a penetrating mode and clamped, and then the other ends of the neutron pipelines are correspondingly butted with the air inlet nozzles on the air bags one by one.
As a preferred technical scheme of the invention: the top surface of each circuit component is parallel and level, the safety cover is made of heat-conducting opaque material, the bottom of the safety cover is opened, the mask is arranged on the circuit component layout area on the upper surface of the circuit substrate, and the top surface in the safety cover is in contact with the top surface of each circuit component.
As a preferred technical scheme of the invention: the circuit board is characterized by further comprising a surrounding edge, wherein the surrounding edge surrounds the periphery of the extending surrounding edge and is arranged in an end-to-end butt joint mode, the periphery of the top edge of the surrounding edge is fixedly in butt joint with the periphery of the extending surrounding edge, the periphery of the bottom edge of the surrounding edge is fixedly in butt joint with the corresponding position of the surface of the installation position of the circuit board, and the sealing of the area below the circuit board is achieved.
As a preferred technical scheme of the invention: the high-voltage power supply is arranged below the circuit substrate, the output of the high-voltage power supply is in butt joint with one end of the first wire, one end of the second wire is in butt joint with the electricity taking end of a preset target self-destruction component in all circuit components, the other end of the first wire and the other end of the second wire are in butt joint with one contact respectively, the two contacts are vertically distributed on the upper portion and the lower portion of the circuit substrate and the air bag, the distance between the two contacts meets the preset distance, and the two contacts are in butt joint with each other based on the expansion effect of the air bag.
Compared with the prior art, the air cushion protection type circuit board adopting the technical scheme has the following technical effects:
(1) the air cushion protective circuit board adopts a brand-new circuit board structure design, an air bag which is arranged below a circuit substrate and faces to circuit wiring is designed and added, a detection trigger structure which is designed by combining with screw installation is adopted, and an upper pressing plate strip and a lower pressing plate strip are arrangedClamping a sub-pipeline of the butt joint air bag of the miniature liquid compressed air bottle; under the protection of the protective cover for shielding the circuit components, the circuit substrate is attacked, screws are screwed, loosening between the upper pressing plate strip and the lower pressing plate strip is triggered, and liquid compression is applied
Figure 100002_DEST_PATH_IMAGE002A
The whole air bag is quickly filled under the action of the spraying force, the air bag expands to jack up the circuit substrate, the circuit substrate can be even broken by virtue of the gas quantity of liquid state compression, and meanwhile, the short circuit of circuit components is realized by virtue of the contact of the conductive film on the surface of the air bag and the circuit wiring on the lower surface of the circuit substrate, so that the circuit components are burnt, and the data safety is ensured;
(2) in the designed air cushion protective circuit board, based on the design that the top surfaces of all circuit components are flush, the protective cover is further designed to be made of heat-conducting opaque materials, so that the protective cover can shield and protect all circuit components, and meanwhile, the protective cover can dissipate heat generated by the work of all circuit components, and the working stability of the circuit components is improved;
(3) in the air cushion protective circuit board designed by the invention, the surrounding edge is further designed, the surrounding edge is used for surrounding and shielding the area below the circuit substrate, and the surrounding edge and the epitaxial surrounding edge form an integrated structure, so that the designed structure is protected in an all-round way to the maximum extent, and the working safety of the designed structure is improved;
(4) in the air cushion protective circuit board designed by the invention, a high-voltage power supply is further introduced, the high-voltage power supply is designed to be in butt joint with each preset target self-destruction component through a wire contact structure, the contact structures are mutually contacted by the expansion air bag under the operation that the circuit substrate is attacked and screws, the high-voltage power supply is communicated to supply power to the target self-destruction component, the target self-destruction component is burnt by the high-voltage power supply, and the self-protection efficiency in the practical application of the designed circuit board is further ensured.
Drawings
FIG. 1 is a schematic structural diagram of an air cushion protection circuit board according to the present invention;
fig. 2 is a side view structural diagram of the trigger detection device in the air cushion protection type circuit board according to the present invention.
Wherein, 1, circuit substrate, 2, circuit component, 3, protective cover, 4, miniature liquid state compression
Figure DEST_PATH_IMAGE002AA
The air bag comprises an air bottle, 5 parts of an air bag, 6 parts of an upper pressing plate strip, 7 parts of a lower pressing plate strip, 8 parts of screws, 9 parts of stand columns, 10 parts of an extending surrounding edge, 11 parts of a conductive film, 12 parts of a surrounding edge and 13 parts of a sub-pipeline.
Detailed Description
The following description will explain embodiments of the present invention in further detail with reference to the accompanying drawings.
The invention designs an air cushion protection type circuit board, which is further designed aiming at the structures of a circuit substrate 1 and various circuit components 2 arranged on the circuit substrate 1; as shown in fig. 1, specifically comprises a protective cover 3 and a micro liquid compression
Figure DEST_PATH_IMAGE002AAA
Gas cylinder 4, gasbag 5, surrounding edge 12, high voltage power supply, first wire, second wire, and each trigger detection device.
The circuit wiring printing layer is arranged on the lower surface of the circuit substrate 1, the circuit components 2 are respectively arranged at corresponding positions on the upper surface of the circuit substrate 1, pins of the circuit components 2 respectively penetrate through the circuit substrate 1, the pins are fixed with the circuit wiring in the circuit wiring printing layer by applying soldering tin, and the top surfaces of the circuit components 2 are flush with each other.
The circuit board 1 is characterized in that each mounting area is distributed on the periphery of the surface of the circuit board 1, the structures of the mounting areas are the same, and each mounting area comprises two mounting through holes penetrating through the upper surface and the lower surface; as shown in fig. 1 and 2, the number of the trigger detection devices is equal to the number of the surface mounting areas of the circuit substrate 1, each trigger detection device corresponds to each mounting area one by one, the structures of the trigger detection devices are the same, and each trigger detection device comprises an upper pressing lath 6, a lower pressing lath 7, two screws 8 and two upright posts 9; in each trigger detection device, the outer diameter of the screw 8 is adapted to the inner diameter of the mounting through hole in the corresponding mounting area, a linear groove is embedded in one end face of each upright post 9, the straight line where the groove is located is collinear with the straight line where the upright post 9 is located, and the inner wall of the groove is arranged on a thread corresponding to the thread of the screw 8; the length of the upper pressing plate strip 6 and the length of the lower pressing plate strip 7 are both larger than the distance between the two mounting through holes in the corresponding mounting area on the circuit substrate 1; among each trigger detection device, the upper surface of upper pressure plate strip 6 is fixed and is covered the lower extreme that two installation through-holes in the corresponding installation zone of butt joint circuit substrate 1, and the lower surface of lower pressure plate strip 7 is fixed and is covered the recess end of two stands 9 of butt joint, and two stands 9 all are mutually perpendicular with the surface of lower pressure plate strip 7, and the interval equals between two installation through-holes in the interval and the corresponding installation zone between two stands 9.
As shown in fig. 1, the protection cover 3 is made of a heat-conducting opaque material, the bottom of the protection cover 3 is open, the size of an open opening at the bottom of the protection cover 3 is larger than the size of the whole layout region of each circuit component 2 on the upper surface of the circuit substrate 1, the circuit components 2 on the upper surface of the circuit substrate 1 are arranged in the layout region of the open mask at the bottom of the protection cover 3, and the top surface in the protection cover 3 is in contact with the top surface of each circuit component 2, so that when the protection cover 3 shields and protects each circuit component 2, the heat generated by the protection cover 3 in the work of each circuit component 2 is dissipated, and the work stability of the circuit.
An extension surrounding edge 10 is arranged along the periphery of the outer side of the open opening at the bottom of the protective cover 3, the extension surrounding edge 10 is of a planar structure, and the size of the peripheral outline of the extension surrounding edge 10 is matched with the size of the surface of the circuit substrate 1; based on the upper pressing lath 6 and the lower pressing lath 7 which are arranged in a vertically stacked and separable manner in a posture with parallel surfaces, two screws 8 vertically downwards pass through the positions, corresponding to the corresponding mounting areas, of the extending surrounding edge 10 from the upper side of the extending surrounding edge 10, then the two screws 8 continuously pass through the mounting through holes, the upper pressing lath 6 and the lower pressing lath 7 in the corresponding mounting areas, and finally the two screws 8 are screwed into the grooves of the upright posts 9; the bottom ends of the two stand columns 9 in each trigger detection device are respectively and fixedly arranged at the installation position of the circuit board, and the circuit board 1 is fixed and the protection cover 3 and the circuit board 1 are fixed based on each trigger detection device.
The surrounding edge 12 is arranged around the edge periphery of the extending surrounding edge 10 in an end-to-end mode, the surrounding edge 12 is fixedly butted with the edge periphery of the extending surrounding edge 10 in an end-to-end mode, the top edge periphery of the surrounding edge 12 is fixedly butted with the edge periphery of the extending surrounding edge 10 in a position corresponding to the surface of the mounting position of the circuit board in a corresponding mode, the lower area of the circuit board 1 is sealed, therefore, the surrounding edge 12 surrounds and shields the lower area of the circuit board 1, the integrated structure is formed by the surrounding edge 12 and the extending surrounding edge 10, all-around protection is conducted on the designed structure to the maximum extent, and the work safety of the designed structure is improved.
As shown in fig. 1, a micro liquid compressed gas cylinder 4 is fixedly arranged below the circuit substrate 1, and the micro liquid compressed gas cylinder
Figure DEST_PATH_IMAGE002AAAA
The air outlet of the air bottle 4 is connected with one end of the main guide pipe, the other end of the main guide pipe is butted with the connecting end of the branch pipe, the number of the branch output ends on the branch pipe is equal to the number of the trigger detection devices, the air bag 5 is arranged below the circuit substrate 1, the surface of the air bag 5 is covered with the conductive film 11, when the air bag 5 is in a contraction state, the conductive film 11 on the surface of the air bag 5 is not contacted with the circuit wiring on the lower surface of the circuit substrate 1, the surface of the air bag 5 is provided with air inlet nozzles with the number equal to the number of the trigger detection devices, the branch output ends on the branch pipe are respectively butted with one end of a sub-pipe 13, the other end of each sub-pipe 13 respectively penetrates through the area between the upper pressure plate strip 6 and the lower pressure plate strip 7 in each trigger detection device, two screws 8 in each trigger detection device clamp the upper pressure plate strip 6, then the other end of each sub-pipeline 13 is in butt joint with each air inlet nozzle on the air bag 5 in a one-to-one correspondence mode.
The high-voltage power supply is arranged below the circuit substrate 1, the output of the high-voltage power supply is in butt joint with one end of a first lead, one end of a second lead is in butt joint with a power taking end of a preset target self-destruction component in all circuit components 2, the other end of the first lead and the other end of the second lead are in butt joint with a contact respectively, the two contacts are vertically distributed between the circuit substrate 1 and the air bag 5, the distance between the two contacts meets the preset distance, and the two contacts are in butt joint with each other based on the expansion effect of the air bag 5; according to the design, the high-voltage power supply is in butt joint with each preset target self-destruction component through the wire contact structure, under the operation that the circuit substrate 1 is attacked and the screw 8 is screwed, the contact structures are mutually contacted through the expansion air bag 5, the high-voltage power supply is communicated to supply power to the target self-destruction component, the target self-destruction component is burnt through the high-voltage power supply, and the self-protection efficiency in the actual application of the designed circuit board is further ensured.
The air cushion protection type circuit board designed by the technical scheme adopts a brand-new circuit board structure design, the air bag 5 which is positioned below the circuit substrate 1 and faces to circuit wiring is designed and added, the designed detection trigger structure is installed by combining the screws 8, and the micro liquid compression is realized by the upper pressing plate strip 6 and the lower pressing plate strip 7
Figure DEST_PATH_IMAGE002AAAAA
The gas bottle 4 clamps a sub-pipeline 13 of the gas bag 5; under the shielding protection of the circuit component 2 based on the protective cover 3, the circuit substrate 1 is attacked, the screw 8 is screwed, the looseness between the upper pressing plate strip 6 and the lower pressing plate strip 7 is triggered, and liquid compression is applied
Figure DEST_PATH_IMAGE002AAAAAA
The air bag 5 is inflated to jack up the circuit board 1, and the liquid state is compressed The gas quantity of (3) can even break the circuit substrate 1, and meanwhile, the conductive film 11 on the surface of the air bag 5 is in contact with the circuit wiring on the lower surface of the circuit substrate 1, so that the short circuit of circuit components is realized, the circuit components are burnt, and the data safety is ensured.
The designed air cushion protection type circuit board is applied to practice, and based on the design structure, a high-voltage power supply and a micro liquid compression are firstly placed
Figure DEST_PATH_IMAGE002AAAAAAAA
The air bottle 4 and the uninflated air bag 5 are fixedly provided with the positions of two upright posts 9 in each trigger detection device, then the other ends of the sub pipelines 13 are respectively in one-to-one corresponding butt joint with the air inlet nozzles on the air bag 5, and meanwhile, each sub pipeline 13 respectively passes through the position between an upper pressure plate strip 6 and a lower pressure plate strip 7 in each trigger detection device and compresses the upper pressure plate strip 6 and the lower pressure plate strip 7, so that each sub pipeline 13 is not communicated; then the micro liquid state compression is carried out by the butt joint of the main conduit and the branch conduit
Figure DEST_PATH_IMAGE002AAAAAAAAA
The gas cylinder 4 and each sub-pipeline 13; then, the integrated structure of the protective cover 3 and the surrounding edge 12 is covered on the circuit component 2 on the circuit substrate 1, and meanwhile, a first lead and a second lead are connected; finally, screws 8 are screwed aiming at each trigger detection device to realize the fixation of the circuit substrate 1 and the fixation of the protective cover 3 and the circuit substrate 1, and then the bottom edge circle of the surrounding edge 12 is fixedly butted with the corresponding position of the surface of the installation position of the circuit board, so as to realize the complete shielding of the area below the circuit substrate 1.
In the concrete protection process, because whole structure is shielded by protective cover 3 and surrounding edge 12, can't learn the concrete structure of inside from the outside, then can only operate each trigger detection device, twist screw 8 promptly, but to any one each trigger detection device, as long as twisted screw 8, based on the screw thread design of corresponding stand 9 middle groove inner wall, then screw 8 can upwards jack-up, then lost the effect of compressing tightly of pressing lath 6 and lower pressing lath 7 wherein, corresponding wherein the sub-pipeline 13 of pressing between has lost the clamp force to it naturally, corresponding pipeline between miniature liquid compression gas cylinder 4 and gasbag 5 has been linked through promptly, then miniature liquid compression gas cylinder 4 and gasbag 5 between corresponding pipeline
Figure DEST_PATH_IMAGE002AAAAAAAAAA
The liquid compression in the gas cylinder 4 is rapidly ejected to impact the gas bag 5, the gas bag 5 is rapidly expanded to generate upward jacking force on the circuit substrate 1, and in practical application, if the micro liquid compression is adopted
Figure DEST_PATH_IMAGE002AAAAAAAAAAA
Liquid compression carried by the gas cylinder 4
Figure DEST_PATH_IMAGE002AAAAAAAAAAAA
Enough force is enough for the airbag 5 to inflate and expand, so that the circuit substrate 1 is broken off, and meanwhile, based on the conductive film 11 covered and arranged on the surface of the airbag 5, the airbag 5 expands to enable the conductive film 11 to be in contact with circuit wiring on the lower surface of the circuit substrate 1, so that all circuit components are short-circuited and burnt; moreover, aiming at the design of the introduced high-voltage power supply, the air bag 5 is expanded to enable two contacts of the first lead and the second lead to be butted with each other, and high-voltage electricity is applied to impact preset target self-destruction components so as to burn the preset target self-destruction components, so that the data protection under the attack of the circuit substrate 1 and the circuit components 2 is realized from multiple aspects.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (4)

1. An air cushion protection type circuit board comprises a circuit substrate (1) and circuit components (2) arranged on the circuit substrate (1); the circuit board comprises a circuit substrate (1), a circuit wiring printing layer, circuit components (2), a circuit board body and a circuit board, wherein the circuit wiring printing layer is distributed on the lower surface of the circuit substrate (1), the circuit components (2) are respectively arranged at corresponding positions on the upper surface of the circuit substrate (1), pins of the circuit components (2) respectively penetrate through the circuit substrate (1), and the pins and the circuit wiring in the circuit wiring printing layer are fixed by applying soldering tin;
the method is characterized in that: also comprises a protective cover (3) and a micro liquid compression
Figure DEST_PATH_IMAGE002
A gas cylinder (4), a gas bag (5) and each trigger detection device; wherein, the periphery of the surface of the circuit substrate (1) is distributed with each mounting area, the structure of each mounting area is the same, and each mounting area is respectively provided withComprises two mounting through holes penetrating through the upper surface and the lower surface;
the number of the trigger detection devices is equal to the number of the surface mounting areas of the circuit substrate (1), each trigger detection device corresponds to each mounting area one by one, the structures of the trigger detection devices are the same, and each trigger detection device comprises an upper pressing plate strip (6), a lower pressing plate strip (7), two screws (8) and two upright posts (9); in each trigger detection device, the outer diameter of a screw (8) is adapted to the inner diameter of a mounting through hole in a corresponding mounting area, a linear groove is embedded in one end face of each upright post (9), the line where the groove is located is collinear with the line where the upright post (9) is located, and the inner wall of the groove is arranged on a thread corresponding to the thread of the screw (8); the length of the upper pressing plate strip (6) and the length of the lower pressing plate strip (7) are both larger than the distance between the two mounting through holes in the corresponding mounting area on the circuit substrate (1); in each trigger detection device, the upper surface of an upper pressing plate strip (6) fixedly covers the lower ends of two mounting through holes in a corresponding mounting area of a butt joint circuit substrate (1), the lower surface of a lower pressing plate strip (7) fixedly covers the groove ends of two butted stand columns (9), the two stand columns (9) are both vertical to the surface of the lower pressing plate strip (7), and the distance between the two stand columns (9) is equal to the distance between the two mounting through holes in the corresponding mounting area;
the protective cover (3) is made of opaque materials, the bottom of the protective cover (3) is open, the size of an open bottom of the protective cover (3) is larger than the size of the whole layout region of each circuit component (2) on the upper surface of the circuit substrate (1), the open bottom of the protective cover (3) is covered on the layout region of the circuit components (2) on the upper surface of the circuit substrate (1), an extension surrounding edge (10) is arranged along the periphery of the outer side of the open bottom of the protective cover (3), the extension surrounding edge (10) is of a planar structure, and the size of the peripheral outline of the extension surrounding edge (10) is matched with the size of the surface of the circuit substrate (1); based on the upper pressing lath (6) and the lower pressing lath (7) which are arranged in a vertically-stacked and separable mode in a posture that the surfaces of the upper pressing lath and the lower pressing lath are parallel to each other, two screws (8) vertically downwards pass through the positions, corresponding to the corresponding mounting areas, of the extending surrounding edge (10) respectively and sequentially, then the two screws (8) continuously pass through the mounting through holes, the upper pressing lath (6) and the lower pressing lath (7) in the corresponding mounting areas respectively and sequentially, and finally the two screws (8) are screwed into the grooves of the stand columns (9); the bottom ends of two upright columns (9) in each trigger detection device are respectively and fixedly arranged at the installation position of the circuit board, and the circuit substrate (1) and the protective cover (3) are fixed with the circuit substrate (1) based on each trigger detection device;
micro liquid compression The air bottle (4) is fixedly arranged below the circuit substrate (1), the air outlet of the miniature liquid compressed air bottle (4) is connected with one end of the main guide pipe, the other end of the main guide pipe is connected with the connecting end of the branch circuits, the number of the branch output ends on the branch circuits is equal to that of the trigger detection devices, the air bag (5) is arranged below the circuit substrate (1), the surface of the air bag (5) is covered with a conductive film (11), when the air bag (5) is in a contraction state, the conductive film (11) on the surface of the air bag (5) is not contacted with the circuit wiring on the lower surface of the circuit substrate (1), the surface of the air bag (5) is provided with air inlet nozzles with the same number as that of the trigger detection devices, each branch output end on the branch circuits is respectively connected with one end of a sub-circuit (13), the other end of each sub-circuit (13) respectively penetrates through one-to one, and the area between the, the upper pressing plate strip (6) and the lower pressing plate strip (7) are clamped by two screws (8) in each trigger detection device, so that the sub-pipelines (13) are clamped in a penetrating mode, and then the other ends of the sub-pipelines (13) are correspondingly butted with the air inlet nozzles on the air bags (5) one by one.
2. The air-cushion protected circuit board of claim 1, wherein: the top surface looks parallel and level of each circuit components (2), safety cover (3) are made for heat conduction opaque material, and open gauze mask in safety cover (3) bottom is located circuit components (2) of circuit substrate (1) upper surface and is laid regional the time, and the top surface contacts with the top surface of each circuit components (2) in safety cover (3).
3. The air-cushion protected circuit board of claim 1, wherein: the sealing structure is characterized by further comprising a surrounding edge (12), wherein the surrounding edge (12) surrounds the periphery of the edge of the extending surrounding edge (10) and is arranged in an end-to-end butt joint mode, the periphery of the top edge of the surrounding edge (12) is fixedly butted with the periphery of the edge of the extending surrounding edge (10), the periphery of the bottom edge of the surrounding edge (12) is fixedly butted with the corresponding position of the surface of the mounting position of the circuit board, and the sealing of the lower area of the circuit substrate (1) is achieved.
4. The air-cushion protected circuit board of claim 1, wherein: the high-voltage power supply is arranged below the circuit substrate (1), the output of the high-voltage power supply is in butt joint with one end of the first wire, one end of the second wire is in butt joint with the electricity taking end of a preset target self-destruction component in all the circuit components (2), the other end of the first wire and the other end of the second wire are in butt joint with one contact respectively, the two contacts are vertically distributed on the upper portion and the lower portion of each other and are arranged between the circuit substrate (1) and the air bag (5), the distance between the two contacts meets the preset distance, and the two contacts are in butt joint with each other based on the expansion effect of the air bag (5).
CN201911116741.5A 2019-11-15 2019-11-15 Air cushion protection type circuit board Active CN110785005B (en)

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CN113015333A (en) * 2021-01-27 2021-06-22 许泽楠 Clamping device is used in processing of photoelectricity product flexible circuit board
CN113075437A (en) * 2021-04-08 2021-07-06 扬州万泰电子科技有限公司 High-reliability intelligent electric meter

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CN113015333A (en) * 2021-01-27 2021-06-22 许泽楠 Clamping device is used in processing of photoelectricity product flexible circuit board
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CN113075437A (en) * 2021-04-08 2021-07-06 扬州万泰电子科技有限公司 High-reliability intelligent electric meter

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