CN102917535A - Heat conduction metal core and PCB (Printed Circuit Board) board using same - Google Patents

Heat conduction metal core and PCB (Printed Circuit Board) board using same Download PDF

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Publication number
CN102917535A
CN102917535A CN2012104648438A CN201210464843A CN102917535A CN 102917535 A CN102917535 A CN 102917535A CN 2012104648438 A CN2012104648438 A CN 2012104648438A CN 201210464843 A CN201210464843 A CN 201210464843A CN 102917535 A CN102917535 A CN 102917535A
Authority
CN
China
Prior art keywords
core
guiding
metal core
heat
pcb board
Prior art date
Application number
CN2012104648438A
Other languages
Chinese (zh)
Inventor
李民善
纪成光
杜红兵
吕红刚
Original Assignee
东莞生益电子有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 东莞生益电子有限公司 filed Critical 东莞生益电子有限公司
Priority to CN2012104648438A priority Critical patent/CN102917535A/en
Publication of CN102917535A publication Critical patent/CN102917535A/en

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Abstract

The invention provides a heat conduction metal core and a PCB board using same. The heat conduction metal core comprises a core body and a leading-in structure which is extended from the end part of the core body, wherein the leading-in structure is a cone which is gradually tapered towards the end far from the core body. With the leading-in structure, the heat conduction metal core can be easily pressed to an open slot of the PCB board; moreover, the leading-in structure can be pre-positioned at the top of the open slot of the PCB board without dropping and inclining, so that the heat conduction metal core can be accurately and flatly pressed to the open slot of the PCB board; and besides, the heat conduction metal core is firmly combined with the PCB board without dropping. The heat conduction metal core is pressed on the heat conduction metal core PCB board, simple in the heat conduction structure and good in radiating effects.

Description

Heat-conducting metal core and with the pcb board of this heat-conducting metal core

Technical field

The present invention relates to printed circuit board (pcb) heat conduction technology, relate in particular to a kind of compression joint type heat-conducting metal core with taper guiding structure and with the pcb board of this heat-conducting metal core.

Background technology

Existing pcb board heat conduction technology and defective thereof are as follows:

1, on conventional conductivity printed circuit board (PCB), conventional Heat Conduction Material dielectric constant (Dk) is larger, and heat-conducting effect is not good and fin is earth-free, causes heat transfer efficiency low, and electric signal transmission loss and distortion on the pcb board are very large;

2, complicated by adopting lamination to imbed the method technique of Heat Conduction Material, there is shortcomings such as needing do behind oxidation processes, the lamination pcb board the difficult removal of Heat Conduction Material surface glue stain before the lamination, make efficiency is low, qualification rate is low;

3, the current machinery that adopts embeds method in the pcb board fluting with straight shape Heat Conduction Material, two bottom surfaces of Heat Conduction Material parallel and and lateral vertical, Heat Conduction Material is not easy to enter in the pcb board fluting, and the easy off normal of Heat Conduction Material, causes and scraps.

Summary of the invention

The object of the present invention is to provide a kind of heat-conducting metal core, by the mechanical stamping method be easy to its accurately, entirely crimping enters in the fluting of pcb board.

Another object of the present invention is to provide the pcb board of this heat-conducting metal core of a kind of usefulness, its simplicity of design, heat-conducting effect is good.

For achieving the above object, the invention provides a kind of heat-conducting metal core, comprising: core body, and the guiding structure that extend to be arranged by the core body end, described guiding structure is Rotary-table, it is towards diminishing gradually away from the core body end.

Further, the longitudinal section of described guiding structure is trapezoidal, and this trapezoidal height is between the 0.2mm to 0.5mm.

Further, described guiding structure away from the end face of core body and this guiding structure near being the arc-shaped transition structure between the end face of core body.

Further, described guiding structure is between the 0.2mm to 0.5mm away from end face and this guiding structure of core body near the distance between the end face of core body.

Further, described guiding structure is located at the two ends of described core body.

The present invention also provides a kind of pcb board, comprise: body and be installed on heat-conducting metal core on the body, described heat-conducting metal core comprises core body, reaches by the core body end and extend the guiding structure that arranges, and described guiding structure is Rotary-table, and it is towards diminishing gradually away from the core body end.

Further, the longitudinal section of described guiding structure is trapezoidal, and this trapezoidal height is between the 0.2mm to 0.5mm.

Further, described guiding structure away from the end face of core body and this guiding structure near being the arc-shaped transition structure between the end face of core body.

Further, described guiding structure is between the 0.2mm to 0.5mm away from end face and this guiding structure of core body near the distance between the end face of core body.

Further, described guiding structure is located at the two ends of described core body.

Beneficial effect of the present invention: heat-conducting metal core of the present invention by its guiding structure under mechanical stamping easily crimping enter in the pcb board fluting; This guiding structure can be in the pcb board top pre-determined bit of slotting simultaneously, and can not come off, deflection, and then make the heat-conducting metal core accurately, entirely crimping enters in the pcb board fluting; Described heat-conducting metal core is combined with pcb board closely, can not come off; The present invention is crimped with the heat-conducting metal core with the pcb board of this heat-conducting metal core, and its conductive structure is simple, good heat dissipation effect.

In order further to understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet accompanying drawing only provide with reference to and the explanation usefulness, the present invention is limited.

Description of drawings

Fig. 1 is the structural representation of the first embodiment of heat-conducting metal core of the present invention;

Fig. 2 is the structural representation of the second embodiment of heat-conducting metal core of the present invention;

Fig. 3 is the structural representation of the 3rd embodiment of heat-conducting metal core of the present invention;

Fig. 4 is the structural representation of the 4th embodiment of heat-conducting metal core of the present invention;

Fig. 5 is that heat-conducting metal core of the present invention crimping enters the pcb board structural representation in when fluting;

Fig. 6 is the structural representation that the present invention uses the pcb board of heat-conducting metal core.

Embodiment

For technical scheme of the present invention can more clearly be showed, the invention will be further described below in conjunction with accompanying drawing.

See also Fig. 1, the invention provides a kind of heat-conducting metal core, comprise core body 4, reach the guiding structure 2 that is extended axially setting by core body 4 ends, described guiding structure 2 is Rotary-table, and it is towards diminishing gradually away from core body 4 ends.

Wherein, this guiding structure 2 can be located at the one or both ends of described core body 4, and in the present embodiment, this guiding structure 2 only is located at an end of described core body 4.

The longitudinal section of described guiding structure 2 is trapezoidal, and the longitudinal cross-section of namely passing the axis of core body 4 is trapezoidal setting.This trapezoidal height H is between the 0.2mm to 0.5mm.

See also Fig. 2, be the structural representation of the second embodiment of heat-conducting metal core of the present invention, in the present embodiment, described guiding structure 2 is located at respectively the two ends of core body 4.

See also Fig. 3, structural representation for the 3rd embodiment of heat-conducting metal core of the present invention, in the present embodiment, described guiding structure 2 ' is located at an end of core body 4, near be the arc-shaped transition structure between the end face of core body 4, this arc-shaped transition structure is so that in the easier insertion pcb board of heat-conducting metal core energy away from the end face of core body 4 and this guiding structure 2 ' for this guiding structure 2 '.

In the present embodiment, described guiding structure 2 ' away from the end face of core body 4 and guiding structure 2 ' near the distance H between the end face of core body 4 ' be between the 0.2mm to 0.5mm.

See also Fig. 4, be the structural representation of the 4th embodiment of heat-conducting metal core of the present invention, in the present embodiment, described guiding structure 2 ' is located at respectively the two ends of core body 4.

See also Fig. 2 and Fig. 5 and Fig. 6, the present invention also provides the pcb board of this heat-conducting metal core of a kind of usefulness, comprise: body 6 and be installed on heat-conducting metal core on the body 6, described heat-conducting metal core comprises core body 4, reaches by core body 4 ends and extend the guiding structure 2 that arranges, described guiding structure 2 is Rotary-table, and it is towards diminishing gradually away from core body 4 ends.

Wherein, this guiding structure 2 can be located at the one or both ends of described core body 4, and in the present embodiment, this guiding structure 2 only is located at an end of described core body 4.

The longitudinal section of described guiding structure 2 is trapezoidal, and this trapezoidal height H is between the 0.2mm to 0.5mm.

Because heat-conducting metal core of the present invention is provided with guiding structure 2, parallel with existing two bottom surfaces and compare with the Heat Conduction Material of lateral vertical, it enters in the fluting 60 of pcb board body 6 easily, and utilize this guiding structure 2, the heat-conducting metal core can be in the fluting 60 top pre-determined bit of PCB body 6, and it can accurately, entirely be pressed in the fluting 60 of pcb board body 6 when mechanical stamping.

When heat-conducting metal core of the present invention is installed on pcb board, with guiding structure one end of heat-conducting metal core down, be positioned on the fluting 60 of pcb board body 6, adopt mechanical stamping slowly to apply certain pressure from the top to the heat-conducting metal core, because the importing effect of guiding structure 2, can be scheduled behind this heat-conducting metal core pressurized the position in the fluting 60 of pcb board body 6, and can not come off, deflection, then continue the heat-conducting metal core is exerted pressure, until the heat-conducting metal core is by entirely accurate, entirely be pressed in the fluting 60 of pcb board body 6, above-mentionedly the heat-conducting metal core is pressed in the fluting 60 of pcb board body 6 in the crimping mode by the mechanical stamping method, utilizes the cell wall of the fluting 60 of pcb board body 6 to the extruding force of the sidewall of heat-conducting metal core heat-conducting metal core and pcb board body 6 to be combined closely.

In sum, heat-conducting metal core of the present invention by its guiding structure under mechanical stamping easily crimping enter in the pcb board fluting; This guiding structure can be in the pcb board top pre-determined bit of slotting simultaneously, and can not come off, deflection, and then make the heat-conducting metal core accurately, entirely crimping enters in the pcb board fluting; Described heat-conducting metal core is combined with pcb board closely, can not come off; The present invention is crimped with the heat-conducting metal core with the pcb board of this heat-conducting metal core, and its conductive structure is simple, good heat dissipation effect.

The above embodiment has only expressed one embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.

Claims (10)

1. a heat-conducting metal core is characterized in that, comprising: core body, and the guiding structure that extend to be arranged by the core body end, and described guiding structure is Rotary-table, it is towards diminishing gradually away from the core body end.
2. heat-conducting metal core as claimed in claim 1 is characterized in that, the longitudinal section of described guiding structure is trapezoidal, and this trapezoidal height is between the 0.2mm to 0.5mm.
3. heat-conducting metal core as claimed in claim 1 is characterized in that, described guiding structure away from the end face of core body and this guiding structure near being the arc-shaped transition structure between the end face of core body.
4. heat-conducting metal core as claimed in claim 3 is characterized in that, described guiding structure is between the 0.2mm to 0.5mm away from end face and this guiding structure of core body near the distance between the end face of core body.
5. heat-conducting metal core as claimed in claim 1 is characterized in that, described guiding structure is located at the two ends of described core body.
6. pcb board, it is characterized in that, comprising: body and be installed on heat-conducting metal core on the body, described heat-conducting metal core comprise core body, and are extended the guiding structure that arranges by the core body end, described guiding structure is Rotary-table, and it is towards diminishing gradually away from the core body end.
7. pcb board as claimed in claim 6 is characterized in that, the longitudinal section of described guiding structure is trapezoidal, and this trapezoidal height is between the 0.2mm to 0.5mm.
8. pcb board as claimed in claim 6 is characterized in that, described guiding structure away from the end face of core body and this guiding structure near being the arc-shaped transition structure between the end face of core body.
9. pcb board as claimed in claim 8 is characterized in that, described guiding structure is between the 0.2mm to 0.5mm away from end face and this guiding structure of core body near the distance between the end face of core body.
10. pcb board as claimed in claim 6 is characterized in that, described guiding structure is located at the two ends of described core body.
CN2012104648438A 2012-11-16 2012-11-16 Heat conduction metal core and PCB (Printed Circuit Board) board using same CN102917535A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012104648438A CN102917535A (en) 2012-11-16 2012-11-16 Heat conduction metal core and PCB (Printed Circuit Board) board using same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012104648438A CN102917535A (en) 2012-11-16 2012-11-16 Heat conduction metal core and PCB (Printed Circuit Board) board using same

Publications (1)

Publication Number Publication Date
CN102917535A true CN102917535A (en) 2013-02-06

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CN2012104648438A CN102917535A (en) 2012-11-16 2012-11-16 Heat conduction metal core and PCB (Printed Circuit Board) board using same

Country Status (1)

Country Link
CN (1) CN102917535A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009170493A (en) * 2008-01-11 2009-07-30 Hitachi Kokusai Electric Inc Wiring board
CN201789685U (en) * 2010-08-25 2011-04-06 深圳中富电路有限公司 Copper block for board embedded with same
CN102781158A (en) * 2011-05-09 2012-11-14 代芳 PCB (Printed Circuit Board) technology capable of increasing heat dissipation effect
CN103858066A (en) * 2011-09-30 2014-06-11 利盟国际有限公司 Extrusion process for manufacturing a Z-directed component for a printed circuit board

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009170493A (en) * 2008-01-11 2009-07-30 Hitachi Kokusai Electric Inc Wiring board
CN201789685U (en) * 2010-08-25 2011-04-06 深圳中富电路有限公司 Copper block for board embedded with same
CN102781158A (en) * 2011-05-09 2012-11-14 代芳 PCB (Printed Circuit Board) technology capable of increasing heat dissipation effect
CN103858066A (en) * 2011-09-30 2014-06-11 利盟国际有限公司 Extrusion process for manufacturing a Z-directed component for a printed circuit board

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Application publication date: 20130206

C02 Deemed withdrawal of patent application after publication (patent law 2001)