CN113966130B - Circuit board capable of preventing crushing during crushing of equipment shell - Google Patents
Circuit board capable of preventing crushing during crushing of equipment shell Download PDFInfo
- Publication number
- CN113966130B CN113966130B CN202111067287.6A CN202111067287A CN113966130B CN 113966130 B CN113966130 B CN 113966130B CN 202111067287 A CN202111067287 A CN 202111067287A CN 113966130 B CN113966130 B CN 113966130B
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- CN
- China
- Prior art keywords
- circuit board
- spring
- shell cover
- guide
- wrapping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005192 partition Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 abstract description 10
- 239000000872 buffer Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1417—Mounting supporting structure in casing or on frame or rack having securing means for mounting boards, plates or wiring boards
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1401—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
- H05K7/1402—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting printed circuit boards
- H05K7/1405—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting printed circuit boards by clips or resilient members, e.g. hooks
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
Abstract
The invention belongs to the field of circuit boards, and particularly relates to a circuit board capable of preventing from being damaged when an equipment shell is extruded and crushed, which comprises a shell cover A, a ladder column, a telescopic rod, a spring A, a shell cover B, a circuit board A, a guide rail, a limiting block, a spring B, a trigger plate, a circuit board B, a guide pin and a spring C, wherein the circuit board A and the circuit board B which are mutually and electrically connected are tightly pressed and nested on four symmetrically distributed ladder columns in the shell cover A by the shell cover B through four elastic ring gaskets, and the circuit board A and the circuit board B are symmetrically distributed on the same plane; when the shell cover A and the shell cover B of the equipment are broken due to violent impact, the circuit board B moves downwards along the guide rail under the extrusion action of the shell cover A and the shell cover B, and the relative movement of the circuit board A and the circuit board B effectively buffers the extrusion of the shell cover A and the shell cover B, so that the circuit board A and the circuit board B in the impacted equipment are protected from being damaged.
Description
Technical Field
The invention belongs to the field of circuit boards, and particularly relates to a circuit board capable of preventing crush when an equipment shell is crushed.
Background
With the continuous development of integrated circuit technology, the supply and the shortage of chips are required, so that the price of the chips is continuously increased, and the proportion of the chips in the production cost of equipment is higher and higher. If the chip is not damaged when the device with the chip is broken due to violent impact, the cost can be greatly saved by recycling the undamaged chip. The circuit board of chip place in traditional equipment is the cartridge generally on the fixed column in the equipment casing to fasten fixedly through upper and lower casing, so the circuit board of chip place is very easily damaged when the equipment casing receives violent striking and breaks.
The invention designs a circuit board capable of preventing the equipment shell from being crushed during extrusion crushing, which solves the problems.
Disclosure of Invention
In order to solve the defects in the prior art, the invention discloses a circuit board for preventing the equipment shell from being crushed by extrusion, which is realized by adopting the following technical scheme.
In the description of the present invention, it should be noted that, the terms "inner", "outer", "upper", "lower", and the like indicate an orientation or a positional relationship based on that shown in the drawings, or an orientation or a positional relationship conventionally put in use of the inventive product, merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured or operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
The circuit board comprises a shell cover A, ladder columns, telescopic rods, a spring A, a shell cover B, a circuit board A, guide rails, a limiting block, a spring B, a trigger plate, a circuit board B, guide pins and a spring C, wherein the circuit board A and the circuit board B which are mutually and electrically connected are tightly pressed and nested by the shell cover B through four elastic ring gaskets and are fixed on four symmetrically distributed ladder columns in the shell cover A, and the circuit board A and the circuit board B are symmetrically distributed on the same plane; the edge A of the circuit board A and the edge B of the circuit board B are provided with structures which enable the edge A and the edge B to be separated from the ladder post along the radial direction of the ladder post.
Two supporting rods A for supporting and maintaining the circuit board A in vertical relation with the corresponding two ladder columns and two telescopic rods for supporting and maintaining the circuit board B in vertical relation with the corresponding two ladder columns are symmetrically arranged in the shell cover A; a spring A for telescoping and resetting the telescopic rods is arranged in each telescopic rod; two supporting rods B matched with the wrapping edges A are symmetrically arranged in the shell cover B.
Two guide rails which are matched with guide pins on two sides of the wrapping edge B in a one-to-one correspondence manner and guide the circuit board B to move below the circuit board A are symmetrically and fixedly arranged on two sides of the wrapping edge A; two springs C for driving the circuit board B to move relative to the circuit board A are symmetrically arranged between the circuit board A and the circuit board B; two inclined trigger plates which trigger the circuit board B to move towards the lower part of the circuit board A under the action of external force are symmetrically arranged on the wrapping edge A.
A chute is formed in the inner wall of each guide rail, and a limiting block slides in each chute along the direction perpendicular to the inner wall of the guide rail; a spring B for resetting the corresponding limiting block is arranged in each sliding groove; the tail end of each limiting block is provided with a limiting cambered surface which is matched with the corresponding side guide pin and limits the relative movement of the circuit board A and the circuit board B from the coplanar state.
As a further improvement of the technology, the shell cover A and the shell cover B are mutually buckled and fixed through bolts; the telescopic rod consists of an outer sleeve and an inner rod which are sleeved with each other; two guide blocks are symmetrically arranged on the inner rod and respectively slide in two guide grooves on the inner wall of the corresponding outer sleeve. The cooperation of the guide block and the guide groove plays a guiding role in the sliding of the inner rod in the outer sleeve. The spring A for telescoping the telescopic rod is positioned in the outer sleeve; the spring A is a compression spring; one end of the spring A is connected with the end face of the corresponding inner rod, and the other end of the spring A is connected with the inner wall of the corresponding outer sleeve.
As a further improvement of the present technology, the spring C is an extension spring; one end of the spring C is connected with a tension spring plate A arranged on the corresponding side of the wrapping edge A, and the other end of the spring C is connected with a tension spring plate B arranged on the corresponding side of the wrapping edge B; the spring C does not interfere with the relative movement of the circuit board B and the circuit board a.
As a further improvement of the technology, two mounting grooves A which are communicated with the end side of the wrapping edge A and are in one-to-one corresponding nested fit with the two corresponding ladder columns are symmetrically arranged on the wrapping edge A; two mounting grooves B which are communicated with the end side of the wrapping edge B and are in one-to-one corresponding nested fit with the two corresponding ladder columns are symmetrically formed in the wrapping edge B; four propping sleeves which are symmetrically distributed at four corners and are in one-to-one nested fit with the ladder columns are arranged in the shell cover A, so that the shell cover A is ensured to keep a tightly propped state against the circuit board A or the circuit board B through ring pads of the details of the nested ladder columns.
As a further improvement of the technology, the circuit board a is electrically connected with the circuit board B through a flat cable; the two support rods A are respectively matched with the support plates arranged on the corresponding sides of the wrapping edges A, so that the support rods A are ensured not to interfere the relative movement of the circuit board A and the circuit board B; two supporting blocks are symmetrically arranged on two sides of the wrapping edge B, and two guide pins are respectively arranged on the two supporting blocks; the two telescopic rods are matched with the two supporting blocks in a one-to-one correspondence manner, so that the telescopic rods are ensured not to interfere the relative movement of the circuit board A and the circuit board B; the two guide rails are respectively arranged on the corresponding sides of the wrapping edge A through two L-shaped plates, so that the two guide rails do not interfere the relative movement of the circuit board A and the circuit board B, and a movable space is provided for the two springs C; the bottoms of the two guide rails are provided with a partition plate for supporting the circuit board B moving in the guide rails.
Compared with the traditional equipment with the circuit board installed inside, when the shell cover A and the shell cover B of the equipment are broken due to violent impact, the circuit board B moves to the lower side of the circuit board A along the guide rail under the extrusion action of the shell cover A and the shell cover B, and the relative movement of the circuit board A and the circuit board B effectively buffers the extrusion of the shell cover A and the shell cover B, so that the circuit board A and the circuit board B in the impacted equipment are protected from being damaged, and the circuit board A and the circuit board B can be recovered and reused after the equipment shell is broken, thereby greatly saving the cost. The invention has simple structure and better use effect.
Drawings
Fig. 1 is a schematic cross-sectional view of a cover a, a circuit board a, and a circuit board B mated with the cover B at two angles.
Fig. 2 is a schematic cross-sectional view of the cover a, the telescopic rod, the support rod a, the circuit board B, and the support rod B in two views mated with the cover B.
Fig. 3 is a schematic cross-sectional view of the circuit board a, the circuit board B and the step post.
Fig. 4 is a schematic view of the case cover a and the case cover B.
Fig. 5 is a schematic cross-sectional view of a telescopic rod.
Fig. 6 is a schematic diagram of the cooperation of the circuit board a, the spring C, the circuit board B and the guide rail.
Fig. 7 is a schematic cross-sectional view of the circuit board a, trigger plate, circuit board B, guide pin, guide rail, stopper and spring B.
Fig. 8 is a schematic diagram of circuit board B.
Fig. 9 is a schematic diagram of the cooperation of the circuit board a and the guide rail.
Fig. 10 is a schematic view of the guide rail and the stopper.
Reference numerals in the figures: 1. a shell cover A; 2. a step column; 3. a telescopic rod; 4. a jacket; 5. a guide groove; 6. an inner rod; 7. a guide block; 8. a spring A; 9. a support rod A; 10. a shell cover B; 11. pressing the sleeve; 12. a support rod B; 13. a bolt; 14. a ring pad; 15. a circuit board A; 16. wrapping A; 17. a mounting groove A; 18. a tension spring plate A; 19. a support plate; 20. an L plate; 21. a guide rail; 23. a chute; 24. a limiting block; 25. limiting cambered surface; 26. a spring B; 27. a partition plate; 28. a trigger plate; 29. a circuit board B; 30. edge wrapping B; 31. a mounting groove B; 32. a pull spring plate B; 33. a support block; 34. a guide pin; 35. a flat cable; 36. and a spring C.
Detailed Description
The drawings are schematic representations of the practice of the invention to facilitate understanding of the principles of operation of the structure. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.
As shown in fig. 1, 2 and 4, the device comprises a shell cover A1, a ladder column 2, a telescopic rod 3, a spring A8, a shell cover B10, a circuit board a15, a guide rail 21, a limiting block 24, a spring B26, a trigger plate 28, a circuit board B29, a guide pin 34 and a spring C36, wherein as shown in fig. 1, 2 and 3, the circuit board a15 and the circuit board B29 which are electrically connected with each other are tightly pressed and nested by the shell cover B10 through four elastic ring gaskets 14 and fixed on four symmetrically distributed ladder columns 2 in the shell cover A1, and the circuit board a15 and the circuit board B29 are symmetrically distributed on the same plane; as shown in fig. 3, 8 and 9, the edge a16 of the circuit board a15 and the edge B30 of the circuit board B29 have a structure for separating the two from the stepped post 2 in the radial direction of the stepped post 2.
As shown in fig. 1, 2 and 4, two support rods A9 for supporting and maintaining the circuit board a15 in vertical relation with the corresponding two step posts 2 and two telescopic rods 3 for supporting and maintaining the circuit board B29 in vertical relation with the corresponding two step posts 2 are symmetrically arranged in the shell cover A1; as shown in fig. 5, each telescopic rod 3 is internally provided with a spring A8 for restoring the telescopic rod; as shown in fig. 2 and 4, two support rods B12 matched with the binding a16 are symmetrically arranged in the shell cover B10.
As shown in fig. 6, 8 and 9, two guide rails 21 which are matched with guide pins 34 on two sides of the wrapping edge B30 in a one-to-one correspondence manner and guide the circuit board B29 to move below the circuit board a15 are symmetrically and fixedly arranged on two sides of the wrapping edge a 16; as shown in fig. 3 and 6, two springs C36 for driving the circuit board B29 to move relative to the circuit board a15 are symmetrically installed between the circuit board a15 and the circuit board B29; as shown in fig. 6, 7 and 9, two inclined trigger plates 28 which trigger the circuit board B29 to move downward of the circuit board a15 under the action of external force are symmetrically installed on the wrapping edge a 16.
As shown in fig. 7, 8 and 10, the inner wall of each guide rail 21 is provided with a chute 23, and a limiting block 24 slides in each chute 23 along the direction perpendicular to the inner wall of the guide rail 21; a spring B26 for resetting the corresponding limiting block 24 is arranged in each sliding groove 23; each stopper 24 has a stopper arc surface 25 at its end which cooperates with the corresponding side guide pin 34 and limits the relative movement of the circuit board a15 and the circuit board B29 from the coplanar state.
As shown in fig. 1, the cover A1 and the cover B10 are fastened and fixed by bolts 13; as shown in fig. 5, the telescopic rod 3 consists of an outer sleeve 4 and an inner rod 6 which are sleeved with each other; two guide blocks 7 are symmetrically arranged on the inner rod 6, and the two guide blocks 7 respectively slide in the two guide grooves 5 on the inner wall of the corresponding outer sleeve 4. The cooperation of the guide block 7 and the guide groove 5 plays a guiding role in sliding the inner rod 6 in the outer sleeve 4. A spring A8 for telescoping the telescopic rod 3 is positioned in the outer sleeve 4; the spring A8 is a compression spring; one end of the spring A8 is connected with the end face of the corresponding inner rod 6, and the other end is connected with the inner wall of the corresponding outer sleeve 4.
As shown in fig. 3 and 6, the spring C36 is a tension spring; as shown in fig. 6, 8 and 9, one end of the spring C36 is connected to the tension spring plate a18 mounted on the corresponding side of the binding a16, and the other end is connected to the tension spring plate B32 mounted on the corresponding side of the binding B30; spring C36 does not interfere with the relative movement of circuit board B29 and circuit board a 15.
As shown in fig. 3, 8 and 9, two mounting grooves a17 which are communicated with the end sides of the wrapping edge a16 and are in one-to-one corresponding nested fit with the two corresponding ladder columns 2 are symmetrically formed in the wrapping edge a 16; two mounting grooves B31 which are communicated with the end sides of the wrapping edge B30 and are in one-to-one corresponding nested fit with the two corresponding ladder columns 2 are symmetrically formed in the wrapping edge B30; as shown in fig. 1 and 4, four pressing sleeves 11 which are symmetrically distributed at four corners and are in one-to-one corresponding nesting fit with the ladder columns 2 are arranged in the shell cover A1, so that the shell cover A1 is ensured to keep a tight pressing state on the circuit board a15 or the circuit board B29 through ring gaskets 14 which nest the details of the ladder columns 2.
As shown in fig. 7 and 9, the circuit board a15 is electrically connected to the circuit board B29 via a flat cable 35; as shown in fig. 1, 6 and 9, the two support rods A9 are respectively matched with the support plates 19 arranged on the corresponding sides of the wrapping edges a16, so that the support rods A9 do not interfere with the relative movement of the circuit board a15 and the circuit board B29; as shown in fig. 8, two supporting blocks 33 are symmetrically installed on two sides of the wrapping edge B30, and two guide pins 34 are respectively installed on the two supporting blocks 33; as shown in fig. 2, the two telescopic rods 3 are matched with the two supporting blocks 33 in a one-to-one correspondence manner, so that the telescopic rods 3 do not interfere with the relative movement of the circuit board A15 and the circuit board B29; as shown in fig. 6 and 9, the two guide rails 21 are respectively installed on the corresponding side of the wrapping edge a16 through the two L plates 20, so that the two guide rails 21 do not interfere with the relative movement of the circuit board a15 and the circuit board B29, and a movable space is provided for the two springs C36; the bottoms of the two guide rails 21 are mounted with a partition 27 that provides support for the circuit board B29 that moves in the guide rails 21.
The working flow of the invention is as follows: in the initial state, the circuit board A15 and the circuit board B29 are normally installed in the shell cover A1 and the shell cover B10, the circuit board A15 and the circuit board B29 are positioned on the same plane, the two trigger plates 28 are simultaneously contacted with the end sides of the wrapping edges B30, and the two springs C36 are in a stretching state. Each guide pin 34 is at a top end limit position within the respective guide rail 21 and is located within a limit arc 25 on the respective limit block 24, each limit block 24 limiting movement of the respective guide pin 34 within the respective guide rail 21. The spring A8 in the telescopic rod 3 and the spring B26 for resetting the limiting block 24 are both in a compressed state.
When the mutually buckled shell cover A1 and shell cover B10 are subjected to severe side outward force parallel to the distribution direction of the circuit board A15 and the circuit board B29, the shell cover A1 and the shell cover B10 are extruded and crushed, and simultaneously drive the circuit board A15 and the circuit board B29 to instantaneously move in opposite directions in the plane where the two are located. Meanwhile, the circuit board B29 generates a trend of moving downwards to the circuit board a15 under the action of the two trigger boards 28, and the circuit board B29 drives the two guide pins 34 to overcome the springs B26 on the corresponding limiting blocks 24 respectively, so that the two guide pins 34 are separated from the limiting cambered surfaces 25 on the corresponding limiting blocks 24 instantaneously, the two limiting blocks 24 simultaneously release the movement restriction of the corresponding guide pins 34 in the guide rails 21, and the circuit board B29 moves downwards to the circuit board a15 along the two guide rails 21 under the action of the two springs C36 always in a tensile state.
In the process that the guide pin 34 is separated from the limiting cambered surface 25 on the limiting block 24, the limiting block 24 is contracted inwards towards the sliding groove 23 on the inner wall of the corresponding guide rail 21 under the action of the guide pin 34, and the spring B26 for resetting the limiting block 24 is further compressed. When the two guide pins 34 are respectively and simultaneously completely separated from the limiting blocks 24, the two limiting blocks 24 are respectively and instantaneously reset under the reset action of the corresponding springs B26.
When the vertical distance between the circuit board B29 and the circuit board a15 reaches the limit, the two guide pins 34 start to slide under the circuit board a15 along the direction parallel to the circuit board a15 in the corresponding guide rails 21, the circuit board B continues to slide under the circuit board a15 along the direction parallel to the circuit board a15 under the pulling of the two springs C36, and the circuit board a15 and the circuit board B29 are laterally extruded by the cover A1 and the cover B10 to form effective buffering, so that the impact on the circuit board a15 and the circuit board B29 caused by the lateral impact when the cover A1 and the cover B10 are broken is effectively reduced, the circuit board a15 and the circuit board B29 are prevented from being damaged, the circuit board a15 and the circuit board B29 are ensured to be continuously recycled, and the cost is saved.
In the process that the circuit board B29 slides rapidly in the direction parallel to the circuit board a15 and directly below the circuit board a15 under the cooperation of the guide pins 34 and the guide rails 21, the final distance between the circuit board a15 and the circuit board B29 reaches the maximum without damaging the circuit board a15 and the circuit board B29 due to the mutual extrusion between the two.
The flat cable 35 electrically connecting the circuit board a15 and the circuit board B29 in the present invention is long enough to accommodate the relative movement of the circuit board a15 and the circuit board B29.
If the cover A1 and the cover B10 of the present invention are impacted by a strong external force perpendicular to the circuit board a15 and the circuit board B29, the two support rods A9 in the cover A1 will press against the circuit board a15 toward the cover B10 through the edge cover a16 in the direction perpendicular to the circuit board a15, the two support rods B12 in the cover B10 will overcome the support of the two telescopic rods 3 through the edge cover B30 in the direction perpendicular to the circuit board B29 and press against the circuit board B29 toward the cover A1, the two telescopic rods 3 will shrink synchronously, and the springs A8 in the telescopic rods 3 will be compressed further. The circuit board A15 and the circuit board B29 are in phase error, the circuit board B29 is separated from the two trigger plates 28, the circuit board B29 drives the two guide pins 34 under the action of intense external force, simultaneously overcomes the defect that the springs B26 on the corresponding limiting blocks 24 are separated from the limiting cambered surfaces 25 on the limiting blocks 24, and the circuit board B29 moves rapidly towards the lower part of the circuit board A15 under the action of the two springs C36.
In the process that the guide pin 34 is separated from the limiting cambered surface 25 on the limiting block 24, the limiting block 24 is contracted inwards towards the sliding groove 23 on the inner wall of the corresponding guide rail 21 under the action of the guide pin 34, and the spring B26 for resetting the limiting block 24 is further compressed. When the two guide pins 34 are respectively and simultaneously completely separated from the limiting blocks 24, the two limiting blocks 24 are respectively and instantaneously reset under the reset action of the corresponding springs B26.
When the vertical distance between the circuit board B29 and the circuit board a15 reaches the limit, the two guide pins 34 start to slide under the circuit board a15 along the direction parallel to the circuit board a15 in the corresponding guide rails 21, the circuit board B continues to slide under the circuit board a15 along the direction parallel to the circuit board a15 under the pulling of the two springs C36, and the circuit board a15 and the circuit board B29 are laterally extruded by the cover A1 and the cover B10 to form effective buffering, so that the impact on the circuit board a15 and the circuit board B29 caused by the lateral impact when the cover A1 and the cover B10 are broken is effectively reduced, the circuit board a15 and the circuit board B29 are prevented from being damaged, the circuit board a15 and the circuit board B29 are ensured to be continuously recycled, and the cost is saved.
In the process that the circuit board B29 slides rapidly in the direction parallel to the circuit board a15 and directly below the circuit board a15 under the cooperation of the guide pins 34 and the guide rails 21, the final distance between the circuit board a15 and the circuit board B29 reaches the maximum without damaging the circuit board a15 and the circuit board B29 due to the mutual extrusion between the two.
In summary, the beneficial effects of the invention are as follows: when the shell cover A1 and the shell cover B10 of the equipment are broken due to violent impact, the circuit board B29 moves downwards along the guide rail 21 to the circuit board A15 under the extrusion action of the shell cover A1 and the shell cover B10, and the relative movement of the circuit board A15 and the circuit board B29 effectively buffers the extrusion of the shell cover A1 and the shell cover B10, so that the circuit board A15 and the circuit board B29 in the impacted equipment are protected from being damaged, and the circuit board A15 and the circuit board B29 can be recycled after the equipment shell is broken, thereby greatly saving the cost.
Claims (3)
1. The utility model provides a circuit board that prevents crushing when equipment shell extrudes breakage which characterized in that: the circuit board A and the circuit board B which are mutually and electrically connected are tightly pressed and nested on four symmetrically distributed ladder columns in the shell cover A by the shell cover B through four elastic ring gaskets, and the circuit board A and the circuit board B are symmetrically distributed on the same plane; the edge wrapping A of the circuit board A and the edge wrapping B of the circuit board B are provided with structures for enabling the two to be separated from the step column along the radial direction of the step column;
two supporting rods A for supporting and maintaining the circuit board A in vertical relation with the corresponding two ladder columns and two telescopic rods for supporting and maintaining the circuit board B in vertical relation with the corresponding two ladder columns are symmetrically arranged in the shell cover A; a spring A for telescoping and resetting the telescopic rods is arranged in each telescopic rod; two support rods B matched with the wrapping edges A are symmetrically arranged in the shell cover B;
two guide rails which are matched with guide pins on two sides of the wrapping edge B in a one-to-one correspondence manner and guide the circuit board B to move below the circuit board A are symmetrically and fixedly arranged on two sides of the wrapping edge A; two springs C for driving the circuit board B to move relative to the circuit board A are symmetrically arranged between the circuit board A and the circuit board B; two inclined trigger plates which trigger the circuit board B to move downwards under the circuit board A under the action of external force are symmetrically arranged on the wrapping edge A;
a chute is formed in the inner wall of each guide rail, and a limiting block slides in each chute along the direction perpendicular to the inner wall of the guide rail; a spring B for resetting the corresponding limiting block is arranged in each sliding groove; the tail end of each limiting block is provided with a limiting cambered surface which is matched with the corresponding side guide pin and limits the relative movement of the circuit board A and the circuit board B from a coplanar state;
the spring C is an extension spring; one end of the spring C is connected with a tension spring plate A arranged on the corresponding side of the wrapping edge A, and the other end of the spring C is connected with a tension spring plate B arranged on the corresponding side of the wrapping edge B; the spring C does not interfere the relative movement of the circuit board B and the circuit board A;
the circuit board A is electrically connected with the circuit board B through a flat cable; the two support rods A are respectively matched with the support plates arranged on the corresponding sides of the wrapping edges A, so that the support rods A are ensured not to interfere the relative movement of the circuit board A and the circuit board B; two supporting blocks are symmetrically arranged on two sides of the wrapping edge B, and two guide pins are respectively arranged on the two supporting blocks; the two telescopic rods are matched with the two supporting blocks in a one-to-one correspondence manner, so that the telescopic rods are ensured not to interfere the relative movement of the circuit board A and the circuit board B; the two guide rails are respectively arranged on the corresponding sides of the wrapping edge A through two L-shaped plates, so that the two guide rails do not interfere the relative movement of the circuit board A and the circuit board B, and a movable space is provided for the two springs C; the bottoms of the two guide rails are provided with a partition plate for supporting the circuit board B moving in the guide rails.
2. The circuit board for preventing crush when the equipment housing is crushed according to claim 1, wherein: the shell cover A and the shell cover B are mutually buckled and fixed through bolts; the telescopic rod consists of an outer sleeve and an inner rod which are sleeved with each other; two guide blocks are symmetrically arranged on the inner rod and respectively slide in two guide grooves on the inner wall of the corresponding outer sleeve; the spring A for telescoping the telescopic rod is positioned in the outer sleeve; the spring A is a compression spring; one end of the spring A is connected with the end face of the corresponding inner rod, and the other end of the spring A is connected with the inner wall of the corresponding outer sleeve.
3. The circuit board for preventing crush when the equipment housing is crushed according to claim 1, wherein: two mounting grooves A which are communicated with the end side of the wrapping edge A and are in one-to-one corresponding nested fit with the two corresponding ladder columns are symmetrically formed in the wrapping edge A; two mounting grooves B which are communicated with the end side of the wrapping edge B and are in one-to-one corresponding nested fit with the two corresponding ladder columns are symmetrically formed in the wrapping edge B; four propping sleeves which are symmetrically distributed at four corners and are in one-to-one nested fit with the ladder columns are arranged in the shell cover A, so that the shell cover A is ensured to keep a tightly propped state against the circuit board A or the circuit board B through ring pads of the details of the nested ladder columns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111067287.6A CN113966130B (en) | 2021-09-13 | 2021-09-13 | Circuit board capable of preventing crushing during crushing of equipment shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111067287.6A CN113966130B (en) | 2021-09-13 | 2021-09-13 | Circuit board capable of preventing crushing during crushing of equipment shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113966130A CN113966130A (en) | 2022-01-21 |
| CN113966130B true CN113966130B (en) | 2024-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111067287.6A Active CN113966130B (en) | 2021-09-13 | 2021-09-13 | Circuit board capable of preventing crushing during crushing of equipment shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113966130B (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
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