CN111642112B - Composite LPC high-frequency high-speed double-sided copper foil substrate and preparation method thereof - Google Patents
Composite LPC high-frequency high-speed double-sided copper foil substrate and preparation method thereof Download PDFInfo
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- CN111642112B CN111642112B CN202010519608.0A CN202010519608A CN111642112B CN 111642112 B CN111642112 B CN 111642112B CN 202010519608 A CN202010519608 A CN 202010519608A CN 111642112 B CN111642112 B CN 111642112B
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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
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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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
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
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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
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20172—Fan mounting or fan specifications
Abstract
The invention discloses a composite LPC high-frequency high-speed double-sided copper foil substrate, which comprises a substrate, an upper copper sheet arranged on the upper part of the substrate and a lower copper sheet arranged on the lower part of the substrate, wherein an upper cavity is arranged inside the upper copper sheet, the section of the upper copper sheet is of a U-shaped structure, vent holes are formed in the end part of the upper copper sheet, two rows of heat dissipation holes are formed in two sides of the upper copper sheet, an inwards concave ball groove is formed in the bottom of the upper copper sheet, a limiting block of an outwards convex arc-shaped structure is arranged on the side wall of the bottom of the upper copper sheet, an inwards concave limiting groove of an arc-shaped structure is formed in the side wall of the substrate, and the limiting block and the limiting groove are clamped. The radiating mechanism is arranged inside the lower copper sheet and located below the substrate, and the top of the lower copper sheet and the bottom of the upper copper sheet are clamped inside the substrate. The base plate has good heat dissipation performance when in use, and can quickly dissipate heat of the base plate.
Description
Technical Field
The invention belongs to the technical field of LPC, and particularly relates to a composite LPC high-frequency high-speed double-sided copper foil substrate and a preparation method thereof.
Background
Linear Predictive Coding (LPC) is a tool used mainly in audio signal processing and speech processing to represent the spectral envelope of a digital speech signal in a compressed form based on information from a linear predictive model. It is one of the most efficient speech analysis techniques and one of the most useful methods for high quality speech at low bit rates, and it can provide very accurate prediction of speech parameters.
The existing LPC can also have the same heat dissipation problem with a computer mainboard when in use, and when the LPC processes a voice signal for a long time, an electronic element on an LPC substrate can generate heat, so that the heat on the substrate is increased, and the service performance of the substrate is reduced.
Disclosure of Invention
The invention aims to provide a composite LPC high-frequency high-speed double-sided copper foil substrate and a preparation method thereof, which can solve the problem that the existing LPC has the same heat dissipation problem with a computer main board when in use, and electronic elements on the LPC substrate generate heat when the LPC processes voice signals for a long time, so that the heat on the substrate is increased, and the use performance of the substrate is reduced.
The purpose of the invention can be realized by the following technical scheme:
composite LPC high-speed two-sided copper foil base plate of high frequency, be in including base plate and setting last copper sheet on base plate upper portion is in with the setting the lower copper sheet of base plate lower part, the inside of going up the copper sheet is provided with the epicoele, just the cross-section of going up the copper sheet is U type structure, the air vent has been seted up to the tip of going up the copper sheet, two rows of louvres have been seted up to the both sides of going up the copper sheet, and every row of louvre is provided with a plurality of, the bottom of going up the copper sheet is passed through clamping mechanism and is connected on the base plate, the bottom of going up the copper sheet is provided with the inwards sunken ball groove, the bottom lateral wall of going up the copper sheet is provided with the stopper of outside bellied convex structure, the lateral wall of base plate is provided with the inwards sunken spacing groove that is arc structure, the stopper with spacing groove looks joint. The radiating mechanism is arranged inside the lower copper sheet and located below the substrate, and the top of the lower copper sheet and the bottom of the upper copper sheet are clamped inside the substrate.
Preferably, the lower copper sheet comprises a lower cavity arranged inside the lower copper sheet, an air collecting cavity of a circular truncated cone structure is arranged above the lower cavity, the top of the air collecting cavity is communicated with an air supply groove inside the substrate, a communication port is arranged above the air supply groove, and the upper portion of the communication port is communicated with the upper cavity.
Preferably, the top of the lower copper sheet is provided with a plurality of convex balls protruding upwards, and each convex ball is clamped in the corresponding ball groove; and air inlets are formed in the two end parts of the lower copper sheet.
Preferably, heat dissipation mechanism is including fixing the fan of copper sheet portion down, the top of fan is provided with the bearing, the surface mounting of bearing has the action wheel, the top of fan is connected with the main shaft, the main shaft runs through the inside of bearing, action wheel, the top lateral wall of action wheel is fixed with the fan blade, the below of fan blade is provided with a plurality of circumference and distributes on the outer circumference of action wheel, the below lateral wall of action wheel is provided with the first latch of a plurality of.
Preferably, the heat dissipation mechanism further comprises two driven wheels meshed with the outer circumference of the driving wheel, second latches are arranged on the outer circumference of the driven wheels, the first latches are meshed with the second latches, a stabilizer bar is movably connected to the middle of the driven wheels, a support is sleeved on the surface of the stabilizer bar, the driven wheels are connected to the upper portion of the support, and the bottom of the stabilizer bar is fixed to the bottom of the lower copper sheet.
Preferably, the heat dissipation mechanism is still including setting up the cardboard of fan bottom, the cardboard joint is in the backing plate top, the cardboard with the backing plate passes through fixed pin dismantlement formula and connects, be provided with the fixed orifices on the cardboard, the fixed orifices is the through-hole, the internally mounted of fixed orifices has the fixed pin.
Preferably, the clamping mechanism comprises a clamping head arranged in the base plate, the clamping head is arranged in a moving groove, sliding grooves communicated with the moving groove are formed in two sides of the moving groove, sliding rods are connected in the sliding grooves in a sliding mode, two sliding rods are arranged on the side wall of the clamping head, a spring is arranged on one side of each sliding rod, a guide block is fixed to one end, away from the clamping groove, of each sliding rod, the diameter size of each guide block is smaller than that of the clamping head, the guide blocks are movably arranged in the guide grooves, and the guide grooves are transversely arranged in the base plate; the dop with the draw-in groove looks joint, the shifting chute with the guide way intercommunication, the diameter size of guide way is less than the diameter size of shifting chute.
The use method of the composite LPC high-frequency high-speed double-sided copper foil substrate specifically comprises the following steps:
s1: the fan rotates to drive the driving wheel to rotate, the driving wheel rotates and can be meshed with the second latch through the first latch so as to generate transmission, the second latch can transmit kinetic energy to the driven wheel, the driven wheel rotates to drive the driven wheel which is fixed on the side wall of the driven wheel and is connected with the fan blades at the top to synchronously rotate, and the driven wheel with the fan blades at the top and the driven wheel without the fan blades at the top are installed at intervals;
s2: an air supply groove is formed above each fan blade, the driven wheel can blow air into the air supply groove, finally the air quantity enters the upper cavity from the air supply groove, and the air can be exhausted from a heat dissipation hole communicated with the side wall of the upper cavity, so that the quick heat dissipation of the upper copper sheet and the lower copper sheet is assisted;
s3: after the air inlet of the air supply groove, the air supply groove can convey part of air volume to the inside of the L-shaped air hole, so that the hole opening of the upward L-shaped air hole in the substrate is used for air outlet, the heat of the substrate is reduced, and the substrate is convenient to rapidly dissipate heat.
The preparation method of the composite LPC high-frequency high-speed double-sided copper foil substrate comprises the following steps: preparing a substrate, an upper copper sheet and a lower copper sheet, fixedly mounting a stabilizer bar at the bottom of the lower copper sheet through a screw, connecting a driven wheel at the top of the stabilizer bar, enabling the driven wheels to be meshed with each other with equal position intervals, stabilizing the position of the driven wheel on the stabilizer bar after the stabilizer bar is fixed, enabling the driven wheel to rotate around the stabilizer bar, and finally mounting one driven wheel needing to be matched with a driving wheel when mounting the driven wheel, wherein no fan blade is mounted on each of the two driven wheels meshed with the driving wheel; the fan is provided with a bearing and a driving wheel, the driving wheel can rotate along with the bearing, the bottom of the lower copper sheet is provided with a round hole for mounting the fan, the diameter size of the round hole is larger than that of the fan and smaller than the distance size between the central lines of the fixing holes on the two clamping plates, one end of the clamping plate at the bottom of the fan is obliquely placed into the lower copper sheet, the fan and the clamping plate are moved until the other clamping plate on the side wall of the fan is positioned on the upper surface of a base plate in the lower copper sheet, and the clamping plate and the fan are fixed through the fixing holes in the clamping plate by fixing pins; after the fan and the clamping plate are placed in the lower copper sheet, the side wall of a driving wheel on the fan is meshed with a driven wheel arranged on one side close to the driving wheel, after the fan is fixed firmly, the last stabilizing rod is arranged in the lower copper sheet, the driven wheel on the stabilizing rod is just meshed with one side of the driven wheel and one side of the driving wheel while being meshed with other driven wheels, and the last stabilizing rod is fixed in the lower copper sheet through a screw; the installation of the heat dissipation mechanism is completed;
step two: inserting the top of the lower copper sheet into the substrate, wherein the lower copper sheet and the substrate slide at the moment, then installing the upper copper sheet into the substrate, after the upper copper sheet is installed into the substrate, the upper copper sheet and the substrate can be clamped through a clamping mechanism, so that the connection between the upper copper sheet and the substrate is stable, and after the upper copper sheet and the substrate are fixed, pushing the lower copper sheet, so that the top end of the lower copper sheet is clamped with the top end of the upper copper sheet, and thus, the upper copper sheet and the lower copper sheet are fixed;
step three: when the bottom of the upper copper sheet slides downwards, two side walls of the upper copper sheet abut against arc end faces of the clamping heads firstly, the clamping heads are extruded by the side walls of the upper copper sheet, so that the clamping heads move towards the inside of the base plate, when moving, the clamping heads can drive the guide blocks arranged inside the guide grooves to move towards the inside of the guide grooves, when moving, the clamping heads can drive the sliding rods to move, and when moving, the sliding rods can extrude the springs, so that the springs are compressed; when the upper copper sheet continues to move downwards, the clamping groove in the side wall of the upper copper sheet just slides over the end part of the clamping head, the spring is reset from a compressed state at the moment, the spring pushes the sliding rod to move in the sliding groove in the resetting process of the spring, the sliding rod is pushed, so that the clamping head fixed with the sliding rod is pushed, after the clamping head is pushed, the clamping head just slides over the side wall of the upper copper sheet to enter the clamping groove, when the clamping head just slides into the clamping groove, the limiting block just clamps into the limiting groove, and the upper copper sheet and the substrate are firmly clamped;
step four: when the lower copper sheet is pushed to be clamped with the upper copper sheet, the convex balls arranged on the side wall of the top of the lower copper sheet can be clamped into the ball grooves arranged on the side wall of the bottom of the upper copper sheet, so that the upper copper sheet and the lower copper sheet are firmly clamped.
The invention has the beneficial effects that:
1. the fan rotates to drive the driving wheel to rotate, the driving wheel rotates to generate transmission through mutual meshing of the first latch and the second latch, the second latch can transmit kinetic energy to the driven wheel, the driven wheel rotates to drive the driven wheel which is fixed on the other top of the side wall of the driven wheel and is connected with the fan blades to synchronously rotate, and the driven wheel with the fan blades at the top and the driven wheel without the fan blades at the top are installed at intervals.
2. The air supply groove is formed above each fan blade, the driven wheel can blow air into the air supply groove, finally the air quantity enters the upper cavity from the air supply groove, the air can be exhausted from the heat dissipation holes communicated with the side wall of the upper cavity, and the copper sheets and the lower copper sheets are assisted to dissipate heat quickly.
3. After the air inlet of the air supply groove, the air supply groove can convey part of air volume to the inside of the L-shaped air hole, so that the hole opening of the upward L-shaped air hole in the substrate is used for air outlet, the heat of the substrate is reduced, and the substrate is convenient to rapidly dissipate heat.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of the structure at B in FIG. 2 according to the present invention;
FIG. 5 is an enlarged view of the structure of FIG. 2 at C;
FIG. 6 is a schematic view of the mounting structure of the driving wheel and the driven wheel of the present invention;
FIG. 7 is a schematic view of a communication structure of the communication port of the present invention;
FIG. 8 is a schematic view of the connection structure of the card of the present invention;
in the figure: 1. a substrate; 11. an L-shaped air hole; 12. a communication port; 13. a wind feeding groove; 14. a chute; 15. a moving groove; 16. a card slot; 17. a guide groove; 18. a limiting groove; 2. a copper sheet is arranged; 21. a vent hole; 22. heat dissipation holes; 23. an upper chamber; 24. a ball groove; 25. a limiting block; 3. a lower copper sheet; 31. an air inlet; 32. a wind collecting cavity; 33. a lower cavity; 34. a convex ball; 35. a base plate; 4. a heat dissipation mechanism; 41. a fan; 42. a bearing; 43. a driving wheel; 431. a first latch; 44. a fan blade; 45. a main shaft; 46. clamping a plate; 461. a fixing hole; 47. a fixing pin; 48. a driven wheel; 481. a second latch; 49. a stabilizer bar; 5. a clamping mechanism; 51. clamping a head; 52. a slide bar; 53. a spring; 54. and a guide block.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, the composite LPC high-frequency high-speed double-sided copper foil substrate includes a substrate 1, an upper copper sheet 2 disposed on the upper portion of the substrate 1, and a lower copper sheet 3 disposed on the lower portion of the substrate 1, an upper cavity 23 is disposed inside the upper copper sheet 2, the section of the upper copper sheet 2 is of a U-shaped structure, the end part of the upper copper sheet 2 is provided with a vent hole 21, two rows of heat dissipation holes 22 are arranged on two sides of the upper copper sheet 2, each row of heat dissipation holes 22 is provided with a plurality of heat dissipation holes, the bottom of the upper copper sheet 2 is connected to the substrate 1 through a clamping mechanism 5, the bottom of the upper copper sheet 2 is provided with an inwardly concave ball groove 24, the side wall of the bottom of the upper copper sheet 2 is provided with a limiting block 25 with an outwards convex arc structure, the lateral wall of base plate 1 is provided with the spacing groove 18 that inwards caves in to be the arc structure, stopper 25 with spacing groove 18 looks joint.
The heat dissipation mechanism 4 is arranged inside the lower copper sheet 3, the heat dissipation mechanism 4 is located below the substrate 1, and the top of the lower copper sheet 3 and the bottom of the upper copper sheet 1 are clamped inside the substrate 1.
The lower copper sheet 3 comprises a lower cavity 33 arranged inside the lower copper sheet, a wind collecting cavity 32 with a circular truncated cone-shaped structure is arranged above the lower cavity 33, the top of the wind collecting cavity 32 is communicated with the air supply groove 13 inside the substrate 1, a communication port 12 is arranged above the air supply groove 13, and the upper part of the communication port 12 is communicated with the upper cavity 23.
The top of the lower copper sheet 3 is provided with a plurality of convex balls 34 protruding upwards, and each convex ball 34 is clamped inside the corresponding ball groove 24; air inlets 31 are formed at two end parts of the lower copper sheet 3.
The heat dissipation mechanism 4 comprises a fan 41 fixed on the lower copper sheet 3 portion, a bearing 42 is arranged at the top of the fan 41, a driving wheel 43 is arranged on the surface of the bearing 42, a main shaft 45 is connected to the top of the fan 41, the main shaft 45 penetrates through the bearing 42 and the driving wheel 43, a fan blade 44 is fixed on the side wall of the upper portion of the driving wheel 43, a plurality of circumferences are arranged below the fan blade 44 and distributed on the outer circumference of the driving wheel 43, and a plurality of first clamping teeth 431 are arranged on the side wall of the lower portion of the driving wheel 43.
The heat dissipation mechanism 4 further comprises two driven wheels 48 arranged on the outer circumference of the driving wheel 43 and engaged with the two driven wheels 48, second latch 481 is arranged on the outer circumference of the driven wheels 48, the first latch 431 and the second latch 481 are engaged with each other, a stabilizer bar 49 is movably connected to the middle of each driven wheel 48, a support is sleeved on the surface of each stabilizer bar 49, the driven wheel 48 is connected above the support, and the bottom of each stabilizer bar 49 is fixed to the bottom of the lower copper sheet 3.
Heat dissipation mechanism 4 is still including setting up the cardboard 46 of fan 41 bottom, cardboard 46 joint is in backing plate 35 top, cardboard 46 with backing plate 35 passes through fixed pin 47 dismantlement formula and connects, be provided with fixed orifices 461 on the cardboard 46, fixed orifices 461 is the through-hole, the internally mounted of fixed orifices 461 has fixed pin 47.
The preparation method of the composite LPC high-frequency high-speed double-sided copper foil substrate specifically comprises the following steps:
the method comprises the following steps: preparing a substrate 1, an upper copper sheet 2 and a lower copper sheet 3, fixedly mounting a stabilizer bar 49 at the bottom of the lower copper sheet 3 through a screw, connecting a driven wheel 48 to the top of the stabilizer bar 49, enabling the driven wheel 48 to be meshed with each other with equal distance between the driven wheel 48, stabilizing the position of the driven wheel 48 on the stabilizer bar 49 after the stabilizer bar 49 is fixed, enabling the driven wheel 48 to rotate around the stabilizer bar 49, mounting one driven wheel 48 which needs to be matched with a driving wheel 43 finally when mounting, and mounting no fan blade 44 on the two driven wheels 48 which are meshed with the driving wheel 43; the fan 41 is provided with a bearing 42 and a driving wheel 43, the driving wheel 43 can rotate along with the bearing 42, the bottom of the lower copper sheet 3 is provided with a round hole for installing the fan 41, the diameter of the round hole is larger than that of the fan 41 and smaller than the distance between the center lines of the fixing holes 461 on the two clamping plates 46, one end of the clamping plate 46 at the bottom of the fan 41 is obliquely placed into the lower copper sheet 3, the fan 41 and the clamping plates 46 are moved until the other clamping plate 46 on the side wall of the fan 41 is positioned on the upper surface of the backing plate 35 in the lower copper sheet 3, and the clamping plates 46 and the fan 41 are fixed through the fixing holes 461 penetrating through the clamping plates 46 by fixing pins 47; after the fan 41 and the chuck plate 46 are placed in the lower copper sheet 3, the side wall of the driving wheel 43 on the fan 41 is meshed with the driven wheel 48 arranged on one side close to the driving wheel 43, after the fan 41 is fixed firmly, the last stabilizer bar 49 is arranged in the lower copper sheet 3, the driven wheel 48 on the stabilizer bar 49 can be meshed with other driven wheels 48, and is just meshed with one side of the driving wheel 43 on one side of the driven wheel 48, and the last stabilizer bar 49 is fixed in the lower copper sheet 3 through screws; the heat dissipation mechanism 4 is installed;
step two: inserting the top of a lower copper sheet 3 into the substrate 1, wherein the lower copper sheet 3 and the substrate 1 slide, then installing an upper copper sheet 2 into the substrate 1, after the upper copper sheet 2 is installed into the substrate 1, the upper copper sheet 2 and the substrate 1 are clamped through a clamping mechanism 5, so that the upper copper sheet 2 and the substrate 1 are stably connected, and after the upper copper sheet 2 and the substrate 1 are fixed, pushing the lower copper sheet 3 to clamp the top end of the lower copper sheet 3 and the top end of the upper copper sheet 2, so that the upper copper sheet 2 and the lower copper sheet 3 are fixed;
step three: when the bottom of the upper copper sheet 2 slides downwards, two side walls of the upper copper sheet 2 abut against the arc end face of the chuck 51 firstly, the chuck 51 is extruded by the side walls of the upper copper sheet 2, so that the chuck 51 moves towards the inside of the base plate 1, when the chuck 51 moves, the chuck 51 drives the guide block 54 arranged inside the guide groove 17 to move towards the inside of the guide groove 17, when the chuck 51 moves, the slide rod 52 moves, and the slide rod 52 moves to extrude the spring 53, so that the spring 53 is compressed; when the upper copper sheet 2 continues to move downwards, the clamping groove 16 on the side wall of the upper copper sheet 2 just slides over the end part of the clamping head 51, at the moment, the spring 53 is reset from a compressed state, the spring 53 pushes the sliding rod 52 to move in the sliding groove 14 in the resetting process of the spring 53, the sliding rod 52 is pushed, so that the clamping head 51 fixed with the sliding rod 52 is pushed, after the clamping head 51 is pushed, the clamping head 51 just slides over the side wall of the upper copper sheet 2 to enter the clamping groove 16, and when the clamping head 51 just slides into the clamping groove 16, the limiting block 25 just clamps into the limiting groove 18, so that the clamping connection between the upper copper sheet 2 and the substrate 1 is firm;
step four: when the lower copper sheet 3 is pushed to be clamped with the upper copper sheet 2, the convex balls 34 arranged on the side wall of the top of the lower copper sheet 3 can be clamped into the ball grooves 24 arranged on the side wall of the bottom of the upper copper sheet 2, so that the upper copper sheet 2 and the lower copper sheet 3 are firmly clamped.
When the fan is used, the fan 41 rotates to drive the driving wheel 43 to rotate, the driving wheel 43 rotates and can be meshed with the second latch 481 through the first latch 431 to generate transmission, the second latch 481 can transmit kinetic energy to the driven wheel 48, the driven wheel 48 can drive the other driven wheel which is fixed on the side wall of the driven wheel and is connected with the fan blades 44 to synchronously rotate, and the driven wheel 48 with the fan blades 44 at the top is arranged at intervals with the driven wheel 48 without the fan blades 44 at the top; an air supply groove 13 is arranged above each fan blade 44, the driven wheel 48 can blow air into the air supply groove 13, finally the air quantity enters the upper cavity 23 from the air supply groove 13, and the air can be exhausted from a heat dissipation hole 22 communicated with the side wall of the upper cavity 23, so that the quick heat dissipation of the upper copper sheet 2 and the lower copper sheet 3 is assisted; after 13 air intakes in air supply groove, air supply groove 13 can carry the inside of L type wind hole 11 with partial amount of wind to make the drill way that is located ascending L type wind hole 11 in base plate 1 carry out the air-out, reduce the heat of base plate 1 self, the base plate 1 of being convenient for dispels the heat fast.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. The composite LPC high-frequency high-speed double-sided copper foil substrate is characterized by comprising a substrate (1), an upper copper sheet (2) arranged on the upper portion of the substrate (1) and a lower copper sheet (3) arranged on the lower portion of the substrate (1), wherein an upper cavity (23) is arranged inside the upper copper sheet (2), the cross section of the upper copper sheet (2) is of a U-shaped structure, vent holes (21) are formed in the end portion of the upper copper sheet (2), two rows of heat dissipation holes (22) are formed in the two sides of the upper copper sheet (2), a plurality of heat dissipation holes (22) are formed in each row, the bottom of the upper copper sheet (2) is connected to the substrate (1) through a clamping mechanism (5), an inward concave ball groove (24) is formed in the bottom of the upper copper sheet (2), and limiting blocks (25) of an outward convex arc-shaped structure are arranged on the side wall of the bottom of the upper copper sheet (2), the side wall of the substrate (1) is provided with a limiting groove (18) which is inwards sunken and has an arc-shaped structure, and the limiting block (25) is clamped with the limiting groove (18); the heat dissipation device is characterized in that a heat dissipation mechanism (4) is arranged inside the lower copper sheet (3), the heat dissipation mechanism (4) is located below the substrate (1), and the top of the lower copper sheet (3) and the bottom of the upper copper sheet (2) are clamped inside the substrate (1).
2. The composite LPC high-frequency high-speed double-sided copper foil substrate according to claim 1, the lower copper sheet (3) comprises a lower cavity (33) arranged inside the lower copper sheet, a wind collecting cavity (32) with a truncated cone structure is arranged above the lower cavity (33), the top of the wind collecting cavity (32) is communicated with a wind supply groove (13) inside the substrate (1), a communication port (12) is arranged above the wind supply groove (13), and the upper part of the communication port (12) is communicated with the upper cavity (23).
3. The composite LPC high-frequency high-speed double-sided copper foil substrate as claimed in claim 2, wherein a plurality of convex balls (34) protruding upwards are arranged at the top of the lower copper sheet (3), and each convex ball (34) is clamped inside the corresponding ball groove (24); and air inlets (31) are formed at two end parts of the lower copper sheet (3).
4. The composite LPC high-frequency high-speed double-sided copper foil substrate according to claim 1, the heat dissipation mechanism (4) comprises a fan (41) fixed to the lower copper sheet (3), a bearing (42) is arranged at the top of the fan (41), a driving wheel (43) is installed on the surface of the bearing (42), a main shaft (45) is connected to the top of the fan (41), the main shaft (45) penetrates through the inside of the bearing (42) and the driving wheel (43), a fan blade (44) is fixed to the side wall above the driving wheel (43), a plurality of circumferences are arranged below the fan blade (44) and distributed on the outer circumference of the driving wheel (43), and a plurality of first snap teeth (431) are arranged on the side wall below the driving wheel (43).
5. The composite LPC high-frequency high-speed double-sided copper foil substrate according to claim 4, the heat dissipation mechanism (4) further comprises two driven wheels (48) arranged on the outer circumference of the driving wheel (43) and meshed with each other, second latch teeth (481) are arranged on the outer circumference of the driven wheels (48), the first latch teeth (431) and the second latch teeth (481) are meshed with each other, a stabilizer bar (49) is movably connected to the middle of each driven wheel (48), a support is sleeved on the surface of each stabilizer bar (49), the driven wheels (48) are connected above the support, and the bottom of each stabilizer bar (49) is fixed to the bottom of the lower copper sheet (3).
6. The composite LPC high-frequency high-speed double-sided copper foil substrate as claimed in claim 5, the heat dissipation mechanism (4) further comprises a clamping plate (46) arranged at the bottom of the fan (41), the clamping plate (46) is clamped above the backing plate (35), the clamping plate (46) and the backing plate (35) are detachably connected through a fixing pin (47), a fixing hole (461) is formed in the clamping plate (46), the fixing hole (461) is a through hole, and the fixing pin (47) is installed inside the fixing hole (461).
7. The composite LPC high frequency high speed double-sided copper foil base plate according to claim 1, the snap fit mechanism (5) comprising a chuck (51) arranged inside the base plate (1), the clamping head (51) is arranged inside the moving groove (15), sliding grooves (14) communicated with the moving groove (15) are arranged on two sides of the moving groove (15), a sliding rod (52) is connected inside the sliding groove (14) in a sliding manner, two sliding rods (52) are arranged on the side wall of the clamping head (51), a spring (53) is arranged on one side of the sliding rod (52), a guide block (54) is fixed on one end of the sliding rod (52) far away from the clamping groove (16), the diameter of the guide block (54) is smaller than that of the chuck (51), the guide block (54) is movably arranged in a guide groove (17), and the guide groove (17) is transversely arranged in the substrate (1); dop (51) with draw-in groove (16) looks joint, shifting chute (15) with guide way (17) intercommunication, the diameter size of guide way (17) is less than the diameter size of shifting chute (15).
8. The composite LPC high-frequency high-speed double-sided copper foil substrate of claim 1, the use method of the substrate includes the following steps:
s1: the fan (41) rotates to drive the driving wheel (43) to rotate, the driving wheel (43) rotates and can be meshed with the second latch (481) through the first latch (431) to generate transmission, the second latch (481) can transmit kinetic energy to the driven wheel (48), the driven wheel rotates (48) to drive the driven wheel which is fixed on the other side wall of the driven wheel and is connected with the fan blade (44) at the top to synchronously rotate, and the driven wheel (48) with the fan blade (44) at the top and the driven wheel (48) without the fan blade (44) at the top are installed at intervals;
s2: an air supply groove (13) is arranged above each fan blade (44), the driven wheel (48) can blow air into the air supply groove (13), finally, the air quantity enters the upper cavity (23) from the air supply groove (13), and the air can be exhausted from a heat dissipation hole (22) communicated with the side wall of the upper cavity (23), so that the auxiliary rapid heat dissipation of the upper copper sheet (2) and the lower copper sheet (3) is realized;
s3: after air inlet of the air supply groove (13), partial air volume can be conveyed to the inside of the L-shaped air hole (11) by the air supply groove (13), so that the hole opening of the upward L-shaped air hole (11) in the substrate (1) is used for air outlet, the heat of the substrate (1) is reduced, and the substrate (1) can be rapidly cooled.
9. The preparation method of the composite LPC high-frequency high-speed double-sided copper foil substrate is characterized by comprising the following steps:
the method comprises the following steps: preparing a substrate (1), an upper copper sheet (2) and a lower copper sheet (3), fixedly mounting stabilizer bars (49) at the bottom of the lower copper sheet (3) through screws, connecting driven wheels (48) to the tops of the stabilizer bars (49), enabling the driven wheels (48) to be meshed with each other with equal position intervals, after the stabilizer bars (49) are fixed, enabling the driven wheels (48) on the stabilizer bars (49) to be stable in position, enabling the driven wheels (48) to rotate around the stabilizer bars (49), mounting one driven wheel (48) needing to be matched with a driving wheel (43) at last when mounting, and mounting no fan blade (44) on the two driven wheels (48) meshed with the driving wheel (43); the fan (41) is provided with a bearing (42) and a driving wheel (43), the driving wheel (43) can rotate along with the bearing (42), the bottom of the lower copper sheet (3) is provided with a round hole for installing the fan (41), the diameter of the round hole is larger than that of the fan (41) and smaller than the distance between the center lines of the fixing holes (461) on the two clamping plates (46), one end of the clamping plate (46) at the bottom of the fan (41) is obliquely placed into the lower copper sheet (3), the fan (41) and the clamping plates (46) are moved until the other clamping plate (46) on the side wall of the fan (41) is positioned on the upper surface of the backing plate (35) inside the lower copper sheet (3), and the clamping plate (46) and the fan (41) are fixed by the fixing pin (47) through the fixing holes (461) inside the clamping plates (46); after a fan (41) and a clamping plate (46) are placed in the lower copper sheet (3), the side wall of a driving wheel (43) on the fan (41) is meshed with a driven wheel (48) arranged on one side close to the driving wheel (43), after the fan (41) is fixed firmly, the last stabilizing rod (49) is arranged in the lower copper sheet (3), the driven wheel (48) on the stabilizing rod (49) can be meshed with other driven wheels (48), meanwhile, the side of the driven wheel (48) is just meshed with one side of the driving wheel (43), and the last stabilizing rod (49) is fixed in the lower copper sheet (3) through screws; the heat dissipation mechanism (4) is installed;
step two: inserting the top of a lower copper sheet (3) into the substrate (1), wherein the lower copper sheet (3) and the substrate (1) slide, then installing an upper copper sheet (2) into the substrate (1), after the upper copper sheet (2) is installed into the substrate (1), clamping the upper copper sheet (2) and the substrate (1) through a clamping mechanism (5), so that the connection between the upper copper sheet (2) and the substrate (1) is stable, and after the upper copper sheet (2) and the substrate (1) are fixed, pushing the lower copper sheet (3) so that the top end of the lower copper sheet (3) is clamped with the top end of the upper copper sheet (2), so that the upper copper sheet (2) and the lower copper sheet (3) are fixed;
step three: when the bottom of the upper copper sheet (2) slides downwards, the two side walls of the upper copper sheet (2) abut against the arc end face of the clamping head (51) firstly, the clamping head (51) is extruded by the side walls of the upper copper sheet (2), so that the clamping head (51) moves towards the inside of the substrate (1), when the clamping head (51) moves, the guide block (54) arranged inside the guide groove (17) is driven to move towards the inside of the guide groove (17), when the clamping head (51) moves, the sliding rod (52) is driven to move, the sliding rod (52) moves to extrude the spring (53), and therefore the spring (53) is compressed; when the upper copper sheet (2) continues to move downwards, the clamping groove (16) in the side wall of the upper copper sheet (2) just slides over the end part of the clamping head (51), at the moment, the spring (53) is reset from a compressed state, the spring (53) pushes the sliding rod (52) to move in the sliding groove (14) in the resetting process of the spring (53), the sliding rod (52) is pushed, so that the clamping head (51) fixed with the sliding rod (52) is pushed, after the clamping head (51) is pushed, the clamping head (51) just slides over the side wall of the upper copper sheet (2) to enter the clamping groove (16), and when the clamping head (51) just slides into the clamping groove (16), the limiting block (25) is just clamped into the limiting groove (18), so that the upper copper sheet (2) and the substrate (1) are firmly clamped;
step four: when the lower copper sheet (3) is pushed to be clamped with the upper copper sheet (2), the convex balls (34) arranged on the side wall of the top of the lower copper sheet (3) can be clamped into the ball grooves (24) arranged on the side wall of the bottom of the upper copper sheet (2), so that the upper copper sheet (2) and the lower copper sheet (3) are firmly clamped.
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