CN113873820A - PCB circuit board - Google Patents
PCB circuit board Download PDFInfo
- Publication number
- CN113873820A CN113873820A CN202110950358.0A CN202110950358A CN113873820A CN 113873820 A CN113873820 A CN 113873820A CN 202110950358 A CN202110950358 A CN 202110950358A CN 113873820 A CN113873820 A CN 113873820A
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- China
- Prior art keywords
- base
- pcb
- clamping block
- fixedly connected
- groove
- 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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Links
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 210000004712 air sac Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 description 10
- 230000009471 action Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/0232—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means with at least one gas spring
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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
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
Abstract
The invention belongs to the technical field of electronic elements, in particular to a PCB (printed circuit board), which comprises a base and a bracket, wherein the base is provided with a plurality of through holes; the number of the bases is two; two brackets are arranged on the base; the cross section of the bracket is L-shaped; a clamping groove is formed in the part of the bracket in the horizontal direction; a plurality of springs are uniformly and fixedly connected to the upper surface of the clamping groove; the other end of the spring is fixedly connected with a first clamping block; the lower surface of the clamping groove is fixedly connected with a second clamping block; a groove is formed in one end, close to the clamping groove, of the part, in the vertical direction, of the support in the length direction of the base; the mounting plate is arranged in the groove; the upper surface of the mounting plate is uniformly and fixedly connected with a plurality of plastic heat pipes in the length direction of the base; the PCB has a simple structure, and can solve the problem that the PCB is easily damaged due to vibration when the PCB works because the PCB is directly and fixedly arranged on the mounting plate through the mounting holes in the PCB in the prior art and the mounting holes are unevenly stressed and electronic elements on the PCB are more.
Description
Technical Field
The invention belongs to the technical field of electronic elements, and particularly relates to a PCB (printed circuit board).
Background
The PCB, the Chinese name of which is printed circuit board, also called printed circuit board, is an important electronic component, is a support body of electronic components, is a carrier for electrical interconnection of the electronic components, and is called printed circuit board because it is manufactured by adopting electronic printing technology; the PCB circuit board among the prior art generally directly passes through the mounting hole fixed mounting on the mounting panel on the PCB circuit board, because of there is the atress uneven and when electronic component was more on the PCB circuit board in the mounting hole, the during operation PCB circuit board receives vibrations, appears damaging easily.
Some technical solutions of PCB circuit boards also appear in the prior art, for example, a chinese patent with application number CN201911056348.1 discloses a PCB circuit board, which includes a protective shell; the protective shell comprises a plugging door, a clamping unit, an adjusting unit and a fixing unit; one end of the plugging door is hinged to one end of the protective shell through a torsional spring, and the other end of the plugging door is provided with a clamping groove with the same wall thickness as the protective shell; the first bolts are symmetrically arranged on the front end surface and the rear end surface of the protective shell, and first gears arranged on the first bolts are meshed with the symmetrically arranged racks respectively; the rear end of the rack is embedded in a sliding groove formed in the side wall of the protective shell, one end of the rack is meshed with a second gear formed in a second bolt, the second bolt penetrates through the side wall of the protective shell and is connected with a clamping block through a first spring, and a first groove is formed in the clamping block; although the device can protect the PCB, the whole PCB needs to be inserted into the device from one side, when the number of electrical components on the PCB is large, the problem that the PCB is difficult to insert is caused, and the PCB cannot be installed.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problem that a PCB in the prior art is generally and fixedly arranged on a mounting plate directly through a mounting hole on the PCB, and the PCB is easy to damage due to vibration when the PCB works when the mounting hole is stressed unevenly and electronic elements on the PCB are more.
The technical scheme adopted by the invention for solving the technical problems is as follows: the PCB circuit board comprises a base and a bracket; the number of the bases is two, and the two bases are designed to be symmetrical with each other; two brackets are arranged on the base; the support is symmetrically designed by using a central axis in the width direction of the base; the base is symmetrically designed by the central axis in the width direction of the base; a plurality of mounting holes are formed in the base between the supports; the cross section of the bracket is L-shaped; a clamping groove is formed in the part of the bracket in the horizontal direction; the upper surface of the clamping groove is provided with a threaded hole; a bolt is connected in the threaded hole in a threaded manner; a plurality of springs are uniformly and fixedly connected to the upper surface of the clamping groove; the other end of the spring is fixedly connected with a push plate; the lower surface of the push plate is fixedly connected with a first clamping block; the lower surface of the clamping groove is fixedly connected with a second clamping block; the first clamping block and the second clamping block are designed in an up-and-down symmetrical mode; the cross sections of the first clamping block and the second clamping block are L-shaped; a groove is formed in one end, close to the clamping groove, of the part, in the vertical direction, of the support in the length direction of the base; the mounting plate is arranged in the groove; the upper surface of the mounting plate is uniformly and fixedly connected with a plurality of radiating pipes in the length direction of the base;
when the clamping device works, the lower end of the bolt is not contacted with the upper surface of the first clamping block in an initial state; under the action of gravity of the first clamping block, the spring is in a stretching state; the first clamping block and the second clamping block are made of rubber materials;
when the PCB is required to be installed and clamped, the two bases are separated by a distance, one side of the PCB is plugged into the second clamping block on the thinner surface in the vertical direction, then the bolt is screwed, the bolt moves downwards to contact and extrude the upper surface of the push plate, so that the push plate drives the first clamping block to move towards the direction of the second clamping block, the screwing of the bolt is stopped after the PCB is slightly clamped by the first clamping block and the second clamping block, then the other side of the PCB is plugged into the second clamping block of the other base on the thinner surface in the vertical direction, the operation is repeated, so that the screwing of the bolt is stopped after the PCB is slightly clamped by the first clamping block and the second clamping block, the mounting hole on the base is fixed on a fixing plate (originally used for directly fixing the PCB by the bolt), and then the first clamping block and the second clamping block clamp are tightly clamped by the plurality of bolts, the installation is simple and easy to operate, and when the PCB works and generates vibration, the first clamping block and the second clamping block are made of rubber materials, so that the damage of electrical elements on the PCB caused by the reduction of the vibration of an external device can be effectively avoided; meanwhile, the device only clamps and fixes four corners of the PCB, so that compared with the prior art, the phenomenon that the PCB cannot be installed due to the fact that electrical elements exist at the side of the PCB is effectively avoided, and the practicability of the device is effectively improved; the cross sections of the first clamping block and the second clamping block are L-shaped, so that the clamped PCB is limited by a part of the first clamping block and the second clamping block which is thicker in the vertical direction, and displacement in the length direction of the base due to vibration is avoided, and the clamping effect of the device on the PCB is improved; meanwhile, the mounting plate is arranged below the PCB and fixedly connected with the radiating pipes, so that heat generated during the operation of the PCB can be effectively absorbed by the radiating pipes and transmitted and radiated, and the problem that the service life of the PCB is shortened due to overhigh temperature generated during the operation of the PCB is avoided; when the maintenance is dismantled to the PCB circuit board to needs, twist soon the loosening with a plurality of bolts this moment, make the bolt to keeping away from the motion of base direction, the push pedal is not receiving the restriction of bolt this moment, to keeping away from the motion of base direction under the effect of many springs, make first clamp splice and second clamp splice no longer carry out the centre gripping back to the PCB circuit board, take out the base with the screw, later to keeping away from mounting panel one side remove the base with the PCB circuit board take out the maintenance can, dismantle simple easy operation, effectively avoid having among the prior art to be difficult to the problem of dismantling the PCB circuit board, improve the result of use and the practicality of device, and this device simple structure, the productivity effect is high.
Preferably, an air cavity is formed in the side, with the smaller thickness, of the second clamping block in the vertical direction; the rubber strip is fixedly connected to the surface of one side of the first clamping block, which is thinner in the vertical direction; the lower end of the rubber strip inclines towards the mounting plate;
the during operation, when the push pedal receives the extrusion of bolt to drive first clamp splice downstream and press from both sides tight PCB circuit board, PCB circuit board lower surface extrusion second clamp splice, because of the inside packing of air cavity has carbon dioxide gas, when making the air cavity pressurized inflation, can effectually reduce the vibration that PCB circuit board work produced, the life of improvement PCB circuit board, simultaneously because of the slope of rubber strip lower extreme towards the mounting panel direction, make PCB circuit board receive the power towards the mounting panel direction, increase the frictional force between PCB circuit board and the first clamp splice, thereby effectively avoid PCB circuit board because of receiving the vibration and move in base width direction, and then improve the centre gripping effect to PCB circuit board, improve the protection of this device to PCB circuit board.
Preferably, the base is provided with a plurality of sliding grooves; the cross section of the sliding groove is convex; the cross section of the lower end of the bracket is convex; the lower end of the bracket is connected to the inside of the sliding groove in a sliding manner; a plurality of first jacks are formed in the surface of one side of the lower end of the support, which is far away from a central axis in the width direction of the base, and the first jacks are sequentially arranged in the width direction of the base; the base is provided with a plurality of second jacks, and the second jacks are positioned on the surfaces of two sides of the base in the width direction; the second jack penetrates through the side wall below the sliding groove;
when the device is in operation, when a PCB is required to be installed, the base is firstly fixed on the fixing plate through screws, one side of the installing plate is fixedly connected inside the groove, the other side of the installing plate is detachably connected inside the groove on the bracket on the other side, at the moment, a clamping pin (not shown in the invention) matched with the first jack and the second jack of the device is inserted into the first jack through the second jack, the bracket fixedly connected with the installing plate is fixed, one side of the PCB is placed on the surface of one side of the second clamping block which is thinner in the vertical direction, then the bracket detachably connected with the installing plate on the other side is pushed towards the installing plate through the chute, so that the installing plate is inserted into the groove on the bracket, meanwhile, the other side of the PCB is placed on the surface of the thinner side of the second clamping block on the bracket in the vertical direction, and then the first clamping block and the second clamping block are clamped tightly by screwing bolts, so that the clamping installation of the PCB can be realized; when the maintenance is dismantled to the PCB circuit board to needs, at first twist a plurality of bolts soon, make the bolt to keeping away from the base direction motion, later take first jack and second jack out in proper order with the card needle of one side, with the support to keeping away from mounting panel side surface motion in the spout and can take out the PCB circuit board, effectively avoid directly dismantling the separation fixed plate with the base and the installation that causes and dismantle troublesome problem, avoid simultaneously with the mounting hole position between base and the fixed plate not assorted and can not be with its problem of installation, effectively improve device's practicality and maneuverability.
Preferably, a plurality of sinking grooves are formed in the surfaces of the two sides of the lower end of the support in the width direction of the base; the sinking grooves are designed in an up-and-down symmetrical mode by taking the first jacks as centers; an air bag is fixedly connected inside the sinking groove; the air bag is communicated with the air cavity through a guide pipe;
when the air bag works, in an initial state, the surface of one side, close to the second jack, of the air bag is parallel to the plane where the first jack is located; after the clamping pin fixes the support, the bolt is screwed so that the first clamping block and the second clamping block clamp the PCB under the action of the bolt, air in an air cavity in the second clamping block enters the air bag through a guide pipe (not shown in the invention), the air bag is pressed to expand and extrude the inner wall of the chute, the friction force between the lower end of the support and the chute is effectively increased, meanwhile, the air bag contacts and extrudes the clamping pin when the air bag expands, the clamping pin inserted into the first jack is clamped, the situation that the support cannot effectively clamp the PCB due to sliding in the chute caused by vibration due to loosening of the clamping pin is avoided, the stability of the device for clamping the PCB is effectively improved, when the bolt is loosened, the contact of the air cavity of the second clamping block is relieved, so that the air in the air bag enters the air cavity of the second clamping block through the guide pipe, the air bag returns to the initial state, so that the lower end of the bracket can smoothly slide in the chute, and the PCB can be smoothly disassembled; simultaneously because of the inside gas pocket of second clamp splice only need get into inside the gasbag a small amount, can not consequently make the not hard up condition of centre gripping of PCB circuit board appearance, even appear also can solve this problem through the mode of continuing to tighten the bolt.
Preferably, the second clamping block is fixedly connected with a sliding block on the surface of one side, close to the side wall of the clamping groove, in the length direction of the base; the surface of one side of the sliding block close to the side wall of the clamping groove is fixedly connected with a sliding rod; a through hole is formed in the side wall of the clamping groove; the sliding rod is connected inside the through hole in a sliding manner;
when the device works, the slide bar is engraved with a scale; after the clamp is fixed on the support, the bolt is screwed so that the first clamping block and the second clamping block clamp the PCB under the action of the bolt, the gas in the air cavity extrudes the second clamping block, the second clamping block expands at the side far away from the mounting plate, the expanded second clamping block pushes the sliding block towards the side close to the side wall of the clamping groove, the sliding block pushes the sliding rod to move towards the direction far away from the mounting plate in the through hole, and due to the fact that the dimension is carved on the sliding rod, when the bolt is screwed, an installer can determine the clamping degree of the first clamping block and the second clamping block on the PCB through the dimension on the sliding rod, the damage of the PCB caused by excessive screwing of the bolt by the installer is effectively avoided, the surface of the PCB is uniformly pressed, the service life of the PCB is effectively prolonged, the practicability of the device is improved, meanwhile, the clamping degree of the PCB is verified through the sliding rod, and incomplete clamping is avoided, the PCB is loosened and dropped in the using process, and the normal use of the PCB is affected.
Preferably, the surface of one side of the lower end of the support far away from the mounting plate is fixedly connected with a plurality of first magnets; the first magnet is inclined; the first magnets are symmetrically designed with the central axis of the bracket as the center; a plurality of second magnets are fixedly connected to the two sides of the sliding groove on the base uniformly; the first magnet and the second magnet are parallel to each other;
during operation, because of first magnet and second magnet are the bar, and mutual repulsion for the fixed back that finishes of support, mutual repulsion between second magnet and the first magnet makes the support receive the power to the mounting panel direction, under the cooperation of first clamp splice and second clamp splice, carries out effectual fixing to the circuit board, reduces external device simultaneously and rocks the degree that makes the support produce and rock, effectively improves the practicality of device and to the fixed stability of support.
The invention has the following beneficial effects:
1. according to the PCB, the four corners of the PCB can be clamped and fixed by arranging the bolts, the bracket, the first clamping block, the second clamping block and the springs, the phenomenon that the PCB cannot be installed due to the fact that electrical elements exist on the side of the PCB is effectively avoided, the practicability of the device is effectively improved, and meanwhile the device is easy to install and disassemble and high in production benefit.
2. According to the PCB circuit board, the second clamping block can be extruded from the lower surface of the PCB circuit board through the arrangement of the first clamping block, the second clamping block and the air cavity, carbon dioxide gas is filled in the air cavity, so that when the air cavity is pressed and expanded, vibration generated by the work of the PCB circuit board can be effectively reduced, the service life of the PCB circuit board is prolonged, meanwhile, the lower end of the rubber strip inclines towards the mounting plate, the PCB circuit board is subjected to force towards the mounting plate, the friction force between the PCB circuit board and the first clamping block is increased, the PCB circuit board is effectively prevented from moving in the width direction of the base due to vibration, the clamping effect of the PCB circuit board is further improved, and the protection of the device on the PCB circuit board is improved.
3. According to the PCB circuit board, the air cavity can be pressed through the arrangement of the second clamping block, the sliding rod and the through hole, so that internal air is expanded, the second clamping block is expanded, the sliding block is pushed to move after the second clamping block is expanded, the sliding block pushes the sliding rod to move in the through hole in the direction away from the mounting plate, an installer can determine the clamping degree of the first clamping block and the second clamping block on the PCB circuit board through the dimension on the sliding rod, the damage of the PCB circuit board caused by excessive bolt screwing of the installer is effectively avoided, meanwhile, the surface of the PCB circuit board can be uniformly pressed through observation of the dimension on the sliding rod, the service life of the PCB circuit board is effectively prolonged, and the practicability of the device is improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic view of the stent of the present invention, taken in cross section;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
FIG. 5 is an enlarged view of a portion of FIG. 2 at C;
in the figure: the heat radiating pipe comprises a base 1, a support 2, a mounting hole 3, a clamping groove 4, a bolt 5, a spring 6, a push plate 61, a first clamping block 7, a second clamping block 8, a groove 9, a mounting plate 11, a heat radiating pipe 12, an air cavity 13, a rubber strip 131, a sliding groove 14, a first insertion hole 15, a second insertion hole 16, a sinking groove 17, an air bag 18, a sliding block 19, a sliding rod 21, a through hole 22, a first magnet 23 and a second magnet 24.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 5, a PCB of the present invention includes a base 1 and a bracket 2; the number of the bases 1 is two, and the two bases are designed to be symmetrical with each other; two brackets 2 are arranged on the base 1; the support 2 is symmetrically designed by using a central axis in the width direction of the base 1; and is symmetrically designed by the central axis in the width direction of the base 1; a plurality of mounting holes 3 are formed between the base 1 and the bracket 2; the cross section of the bracket 2 is L-shaped; a clamping groove 4 is formed in the horizontal part of the bracket 2; the upper surface of the clamping groove 4 is provided with a threaded hole; a bolt 5 is connected with the inner thread of the threaded hole; the upper surface of the clamping groove 4 is uniformly and fixedly connected with a plurality of springs 6; the other end of the spring 6 is fixedly connected with a push plate 61; the lower surface of the push plate 61 is fixedly connected with a first clamping block 7; the lower surface of the clamping groove 4 is fixedly connected with a second clamping block 8; the first clamping block 7 and the second clamping block 8 are designed to be symmetrical up and down; the cross sections of the first clamping block 7 and the second clamping block 8 are both L-shaped; a groove 9 is formed in one end, close to the clamping groove 4, of the vertical part of the support 2 in the length direction of the base 1; a mounting plate 11 is arranged in the groove 9; the upper surface of the mounting plate 11 is uniformly and fixedly connected with a plurality of radiating pipes 12 in the length direction of the base 1;
when the clamping device works, the lower end of the bolt 5 is not contacted with the upper surface of the first clamping block 7 in an initial state; under the action of the gravity of the first clamping block 7, the spring 6 is in a stretching state; the first clamping block 7 and the second clamping block 8 are both made of rubber materials;
when a PCB is required to be installed and clamped, the two bases 1 are separated by a distance, one side of the PCB is plugged into the second clamping block 8 on the thin surface in the vertical direction, then the bolt 5 is screwed, the bolt 5 moves downwards to contact and extrude the upper surface of the push plate 61, so that the push plate 61 drives the first clamping block 7 to move towards the second clamping block 8, the screwing of the bolt 5 is stopped after the PCB is slightly clamped by the first clamping block 7 and the second clamping block 8, then the other side of the PCB is plugged into the second clamping block 8 of the other base 1 on the thin surface in the vertical direction, the operation is repeated, after the PCB is slightly clamped by the first clamping block 7 and the second clamping block 8, the screwing of the bolt 5 is stopped, the installation hole 3 on the base 1 is fixed on a fixing plate (originally used for directly fixing the PCB by a screw), and then the plurality of bolts 5 are screwed, so that the first clamping block 7 and the second clamping block 8 clamp the PCB, the installation is simple and easy to operate, and when the PCB works and generates vibration, the first clamping block 7 and the second clamping block 8 are made of rubber materials, so that the damage of electric elements on the PCB caused by the vibration of an external device can be effectively avoided; meanwhile, the device only clamps and fixes four corners of the PCB, so that compared with the prior art, the phenomenon that the PCB cannot be installed due to the fact that electrical elements exist at the side of the PCB is effectively avoided, and the practicability of the device is effectively improved; the cross sections of the first clamping block 7 and the second clamping block 8 are L-shaped, so that the clamped PCB is limited by a part of the first clamping block 7 and the second clamping block 8 which is thicker in the vertical direction, and the displacement of the clamped PCB in the length direction of the base 1 caused by vibration is avoided, and the clamping effect of the device on the PCB is further improved; meanwhile, the mounting plate 11 is arranged below the PCB, and the mounting plate 11 is fixedly connected with the plurality of radiating pipes 12, so that heat generated during the operation of the PCB can be effectively absorbed by the radiating pipes 12 and transmitted and radiated, and the problem that the service life of the PCB is shortened due to overhigh temperature generated during the operation of the PCB is solved; when the maintenance is dismantled to the PCB circuit board to needs, twist soon a plurality of bolts 5 this moment and loosen, make bolt 5 to keeping away from 1 direction motion of base, push pedal 61 is not receiving the restriction of bolt 5 this moment, to keeping away from 1 direction motion of base under the effect of many springs 6, make first clamp splice 7 and second clamp splice 8 no longer carry out the centre gripping back to the PCB circuit board, take out base 1 with the screw, later to keeping away from 11 one side of mounting panel and remove base 1 and take out the maintenance with the PCB circuit board can, dismantle simple easy operation, effectively avoid the problem that exists to be difficult to dismantle the PCB circuit board among the prior art, improve device's result of use and practicality, and this device simple structure, the productivity effect is high.
As an embodiment of the present invention, an air cavity 13 is formed inside the side of the second clamping block 8 with a smaller thickness in the vertical direction; the surface of one side of the first clamping block 7 with a smaller thickness in the vertical direction is fixedly connected with a rubber strip 131; the lower end of the rubber strip 131 inclines towards the mounting plate 11;
the during operation, when push pedal 61 receives the extrusion of bolt 5 to drive first clamp splice 7 downstream and press from both sides tight PCB circuit board, PCB circuit board lower surface extrusion second clamp splice 8, because of the inside packing of air cavity 13 has carbon dioxide gas, make air cavity 13 during pressurized inflation, can effectually reduce the vibration that PCB circuit board work produced, the life of improvement PCB circuit board, simultaneously because of the slope of rubber strip 131 lower extreme towards 11 directions of mounting panel, make PCB circuit board receive the power towards 11 directions of mounting panel, increase the frictional force between PCB circuit board and the first clamp splice 7, thereby effectively avoid PCB circuit board because of receiving the vibration to move on base 1 width direction, and then improve the centre gripping effect to PCB circuit board, improve the protection of this device to PCB circuit board.
As an embodiment of the present invention, the base 1 is provided with a plurality of sliding grooves 14; the cross section of the sliding chute 14 is convex; the cross section of the lower end of the bracket 2 is convex; the lower end of the bracket 2 is connected inside the sliding chute 14 in a sliding way; a plurality of first jacks 15 are formed in the surface of one side of the lower end of the support 2, which is far away from the central axis of the base 1 in the width direction, and the first jacks 15 are sequentially arranged in the width direction of the base 1; a plurality of second jacks 16 are formed in the base 1, and the second jacks 16 are positioned on the surfaces of two sides of the base 1 in the width direction; the second insertion hole 16 penetrates through the side wall below the sliding chute 14;
when the PCB fixing device works, when the PCB needs to be installed, the base 1 is fixed on a fixing plate through screws, one side of the installing plate 11 is fixedly connected inside the groove 9, the other side of the installing plate is detachably connected inside the groove 9 on the bracket 2 on the other side, at the moment, a clamping pin (not shown in the invention) matched with the first jack 15 and the second jack 16 of the device is inserted into the first jack 15 through the second jack 16, the bracket 2 fixedly connected with the installing plate 11 is fixed, one side of the PCB is placed on the surface of the thinner side of the second clamping block 8 in the vertical direction, then the bracket 2 with the other side detachably connected with the installing plate 11 is pushed towards the installing plate 11 through the sliding groove 14, so that the installing plate 11 is inserted into the groove 9 on the bracket 2, and the other side of the PCB is placed on the surface of the thinner side of the second clamping block 8 on the bracket 2 in the vertical direction, then, the first clamping block 7 and the second clamping block 8 are clamped by screwing the bolt 5, and the PCB can be clamped and installed; when the maintenance is dismantled to the PCB circuit board to needs, at first twist a plurality of bolts 5 soon, make bolt 5 to keeping away from the motion of base 1 direction, later take first jack 15 and second jack 16 out in proper order with the card needle of one side, with support 2 to keeping away from the PCB circuit board of 11 side surface motion of mounting panel in spout 14, effectively avoid directly dismantling separation fixed plate with base 1 and the trouble problem of installation and dismantlement that causes, avoid simultaneously with the problem that can not install it with mounting hole 3 positions phase mismatch between base 1 and the fixed plate, effectively improve the practicality and the maneuverability of device.
As an embodiment of the present invention, a plurality of sinking grooves 17 are formed on the two side surfaces of the lower end of the bracket 2 in the width direction of the base 1; the sinking grooves 17 are designed to be vertically symmetrical by taking the first jacks 15 as centers; an air bag 18 is fixedly connected inside the sinking groove 17; the air bag 18 is communicated with the air cavity 13 through a conduit;
in operation, in the initial state, the surface of the air bag 18 close to one side of the second jack 16 is parallel to the plane of the first jack 15; after the clamp pin fixes the bracket 2, the bolt 5 is screwed so that the first clamp block 7 and the second clamp block 8 clamp the PCB under the action of the bolt 5, at the same time, air in an air chamber 13 inside the second clamp block 8 enters the air bag 18 through a guide pipe (not shown in the invention), so that the air bag 18 is pressed and expanded to extrude the inner wall of the chute 14, the friction force between the lower end of the bracket 2 and the chute 14 is effectively increased, meanwhile, because the air bag 18 is positioned at two sides close to the first jack 15, the air bag 18 contacts and extrudes the clamp pin while the air bag 18 is expanded, the clamp pin inserted into the first jack 15 is clamped, thereby avoiding the situation that the bracket 2 can not effectively clamp the PCB due to sliding in the chute 14 caused by vibration due to loosening of the clamp pin and dropping, effectively improving the stability of the device for clamping the PCB, and when the bolt 5 is loosened, the air chamber 13 of the second clamp block 8 is released from pressure limitation, the air in the air bag 18 enters the air cavity 13 of the second clamping block 8 through the guide pipe, and the air bag 18 is restored to the initial state, so that the lower end of the bracket 2 can smoothly slide in the chute 14, and the PCB can be smoothly disassembled; meanwhile, as the gas in the air cavity 13 inside the second clamping block 8 only needs to enter the air bag 18 in a small amount, the PCB cannot be clamped loosely, and even if the clamping is loosened, the problem can be solved by continuously screwing the bolt 5.
As an embodiment of the invention, a sliding block 19 is fixedly connected to one side surface of the second clamping block 8, which is close to the side wall of the clamping groove 4, in the length direction of the base 1; the slide block 19 is fixedly connected with a slide rod 21 on the surface of one side close to the side wall of the clamping groove 4; a through hole 22 is formed in the side wall of the clamping groove 4; the sliding rod 21 is connected inside the through hole 22 in a sliding manner;
when the device works, the slide bar 21 is engraved with a scale; after the clamp is fixed on the bracket 2, the bolt 5 is screwed so that the first clamping block 7 and the second clamping block 8 clamp the PCB under the action of the bolt 5, the gas in the air cavity 13 extrudes the second clamping block 8, the second clamping block 8 expands at the side far away from the mounting plate 11, the expanded second clamping block 8 pushes the slider 19 towards the side close to the side wall of the clamping groove 4, the slider 19 pushes the slide rod 21 to move in the through hole 22 towards the direction far away from the mounting plate 11, and the slide rod 21 is engraved with a dimension, so that when the bolt 5 is screwed, an installer can determine the clamping degree of the first clamping block 7 and the second clamping block 8 on the PCB through the dimension on the slide rod 21, the damage of the PCB caused by too much screwing of the bolt 5 by the installer is effectively avoided, the surface of the PCB is uniformly pressed, the service life of the PCB is effectively prolonged, the practicability of the device is improved, and simultaneously, the clamping degree of the PCB is verified through the sliding rod 21, so that incomplete clamping is avoided, the PCB is loosened and dropped in the using process, and the normal use of the PCB is influenced.
As an embodiment of the present invention, the lower end of the bracket 2 is fixedly connected with a plurality of first magnets 23 on the surface of one side far away from the mounting plate 11; the first magnet 23 is inclined; the first magnets 23 are symmetrically designed with the central axis of the bracket 2 as the center; a plurality of second magnets 24 are uniformly fixedly connected to two sides of the sliding groove 14 on the base 1; the first magnet 23 and the second magnet 24 are parallel to each other;
during operation, because of first magnet 23 and second magnet 24 are the bar, and mutual repulsion, make support 2 fixed back that finishes, mutual repulsion between second magnet 24 and the first magnet 23 makes support 2 receive the power to mounting panel 11 direction, under the cooperation of first clamp splice 7 and second clamp splice 8, carry out effectual fixed to the circuit board, reduce external device simultaneously and rock and make support 2 produce the degree of rocking, effectively improve the practicality of device and to the stability that support 2 is fixed.
The specific implementation flow is as follows:
when the clamping device works, the lower end of the bolt 5 is not contacted with the upper surface of the first clamping block 7 in an initial state; under the action of the gravity of the first clamping block 7, the spring 6 is in a stretching state; the first clamping block 7 and the second clamping block 8 are both made of rubber materials; the surface of the air bag 18 close to one side of the second jack 16 is parallel to the plane of the first jack 15;
when the PCB is required to be installed, firstly, the base 1 is fixed on the fixing plate through screws, because one side of the installing plate 11 is fixedly connected inside the groove 9, and the other side is detachably connected inside the groove 9 on the bracket 2 on the other side, at this time, a clamping pin (not shown in the invention) matched with the first jack 15 and the second jack 16 of the device is inserted into the first jack 15 through the second jack 16, the bracket 2 fixedly connected with the installing plate 11 is fixed, one side of the PCB is placed on the surface of the thinner side of the second clamping block 8 in the vertical direction, then the bracket 2 detachably connected with the installing plate 11 on the other side is pushed towards the installing plate 11 through the chute 14, so that the installing plate 11 is inserted into the groove 9 on the bracket 2, and the other side of the PCB is placed on the surface of the thinner side of the second clamping block 8 on the bracket 2 in the vertical direction, then, the first clamping block 7 and the second clamping block 8 are clamped by screwing the bolt 5, so that the PCB can be clamped and installed, at the moment, the lower end of the rubber strip 131 inclines towards the mounting plate 11, so that the PCB is subjected to a force towards the mounting plate 11, the friction force between the PCB and the first clamping block 7 is increased, the PCB is effectively prevented from moving in the width direction of the base 1 due to vibration, meanwhile, air in an air cavity 13 in the second clamping block 8 enters the air bag 18 through a guide pipe (not shown in the invention), so that the air bag 18 is pressed and expanded to extrude the inner wall of the sliding chute 14, the friction force between the lower end of the bracket 2 and the sliding chute 14 is effectively increased, meanwhile, because the air bag 18 is positioned at two sides close to the first jack 15, the air bag 18 contacts and extrudes a clamping pin while the air bag 18 expands, the clamping pin inserted into the first jack 15 is clamped, and meanwhile, the air in the air cavity 13 extrudes the second clamping block 8, the second clamping block 8 is expanded at one side far away from the mounting plate 11, the expanded second clamping block 8 pushes the sliding block 19 towards one side close to the side wall of the clamping groove 4, the sliding block 19 pushes the sliding rod 21 to move towards the direction far away from the mounting plate 11 in the through hole 22, and due to the fact that the dimension is carved on the sliding rod 21, when the bolt 5 is screwed, an installer can determine the clamping degree of the first clamping block 7 and the second clamping block 8 on the PCB through the dimension on the sliding rod 21; when the PCB circuit board needs to be disassembled and maintained, the bolts 5 are firstly screwed, so that the bolts 5 move towards the direction away from the base 1, then the clamping pins on one side are sequentially drawn out of the first insertion holes 15 and the second insertion holes 16, and the support 2 moves towards the surface on one side away from the mounting plate 11 in the sliding groove 14, so that the PCB circuit board can be taken out.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A PCB circuit board, its characterized in that: comprises a base (1) and a bracket (2); the number of the bases (1) is two, and the two bases are designed to be symmetrical with each other; two brackets (2) are arranged on the base (1); the support (2) is symmetrically designed by using a central axis in the width direction of the base (1); the central axis of the base (1) in the width direction is designed symmetrically; a plurality of mounting holes (3) are formed in the base (1) between the brackets (2); the cross section of the bracket (2) is L-shaped; a clamping groove (4) is formed in the part, in the horizontal direction, of the support (2); the upper surface of the clamping groove (4) is provided with a threaded hole; a bolt (5) is connected with the inner thread of the threaded hole; the upper surface of the clamping groove (4) is uniformly and fixedly connected with a plurality of springs (6); the other end of the spring (6) is fixedly connected with a push plate (61); the lower surface of the push plate (61) is fixedly connected with a first clamping block (7); the lower surface of the clamping groove (4) is fixedly connected with a second clamping block (8); the first clamping block (7) and the second clamping block (8) are designed to be vertically symmetrical; the cross sections of the first clamping block (7) and the second clamping block (8) are both L-shaped; a groove (9) is formed in one end, close to the clamping groove (4), of the vertical part of the support (2) in the length direction of the base (1); a mounting plate (11) is arranged in the groove (9); the upper surface of the mounting plate (11) is uniformly fixedly connected with a plurality of radiating pipes (12) in the length direction of the base (1).
2. A PCB circuit board according to claim 1, wherein: an air cavity (13) is formed in the side, with the smaller thickness, of the second clamping block (8) in the vertical direction; the rubber strip (131) is fixedly connected to the surface of one side of the first clamping block (7) which is thinner in the vertical direction; the lower end of the rubber strip (131) inclines towards the mounting plate (11).
3. A PCB circuit board according to claim 1, wherein: a plurality of sliding grooves (14) are formed in the base (1); the cross section of the sliding chute (14) is convex; the cross section of the lower end of the bracket (2) is convex; the lower end of the bracket (2) is connected to the inside of the sliding chute (14) in a sliding manner; a plurality of first insertion holes (15) are formed in the surface of one side, away from the central axis of the base (1), of the lower end of the support (2), and the first insertion holes (15) are sequentially arranged in the width direction of the base (1); the base (1) is provided with a plurality of second jacks (16), and the second jacks (16) are positioned on the surfaces of two sides of the base (1) in the width direction; the second insertion hole (16) penetrates through the side wall below the sliding groove (14).
4. A PCB circuit board according to claim 3, wherein: a plurality of sinking grooves (17) are formed in the surfaces of the two sides of the lower end of the support (2) in the width direction of the base (1); the sinking groove (17) is designed to be vertically symmetrical by taking a plurality of first jacks (15) as centers; an air bag (18) is fixedly connected inside the sinking groove (17); the air sac (18) is communicated with the air cavity (13) through a conduit.
5. A PCB circuit board according to claim 1, wherein: the second clamping block (8) is fixedly connected with a sliding block (19) on the surface of one side, close to the side wall of the clamping groove (4), of the base (1) in the length direction; the surface of the sliding block (19) close to one side wall of the clamping groove (4) is fixedly connected with a sliding rod (21); a through hole (22) is formed in the side wall of the clamping groove (4); the sliding rod (21) is connected inside the through hole (22) in a sliding mode.
6. A PCB circuit board according to claim 3, wherein: the surface of one side of the lower end of the support (2) far away from the mounting plate (11) is fixedly connected with a plurality of first magnets (23); the first magnet (23) is inclined; the first magnets (23) are symmetrically designed with the central axis of the bracket (2) as the center; a plurality of second magnets (24) are uniformly fixedly connected to the two sides of the sliding groove (14) on the base (1); the first magnet (23) and the second magnet (24) are parallel to each other.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110950358.0A CN113873820B (en) | 2021-08-18 | 2021-08-18 | PCB circuit board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110950358.0A CN113873820B (en) | 2021-08-18 | 2021-08-18 | PCB circuit board |
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| CN113873820A true CN113873820A (en) | 2021-12-31 |
| CN113873820B CN113873820B (en) | 2023-11-03 |
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Cited By (1)
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| CN114793396A (en) * | 2022-05-24 | 2022-07-26 | 南通安翌顺科技有限公司 | Solar LED street lamp circuit board welding production equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113873820B (en) | 2023-11-03 |
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