CN104260542A - Design method of web plate coated by heat dissipating paste - Google Patents
Design method of web plate coated by heat dissipating paste Download PDFInfo
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- CN104260542A CN104260542A CN201410427019.4A CN201410427019A CN104260542A CN 104260542 A CN104260542 A CN 104260542A CN 201410427019 A CN201410427019 A CN 201410427019A CN 104260542 A CN104260542 A CN 104260542A
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- high performance
- components
- web plate
- performance components
- outline line
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Abstract
The invention discloses a design method of a web plate coated by heat dissipating paste. The design method comprises the following steps: step one, drawing the contours of all large power components that needs to be coated by the heat dissipating paste; step two, inwardly moving the contours in a preset displacement so as to obtain the corrected contours of all large power components; step three, drawing the contours of heat radiators for dissipating heat from the large power components; step four, combining the corrected contours of the large power components by taking the contours of the heat radiators as the baseline; step five, integrally separating the corrected contour of the combined large power components so as to obtain the hole positions and sizes of the web plate coated by heat dissipating paste. The provided method solves the following problems existing in the conventional technologies: (1) the margin on one side of the components is too wide, thus the margin is not fully covered by the heat dissipating paste, and the heat dissipating effect is affected; (2) margin in the other side of the components is too narrow, the heat dissipating paste can easily flow to the component pins, and the disqualified rate is increased.
Description
Technical field
The present invention relates to serigraphy, particularly relate to the method for designing of a kind of thermal grease coating web plate.
Background technology
Thermal grease coating web plate is a kind of web plate generally used in electron trade, specifically SUS304 steel disc is outputed and component locations, position, hole that size is suitable, for being accurately coated between high performance components and radiator by thermal grease, reach the object of high performance components good heat radiating.In current industry, the design of thermal grease coating web plate take pcb board as benchmark, the following two kinds of methods of main employing:
(1) first method: with the silk-screen frame of pcb board high performance components (heavy line in Fig. 1) for benchmark carries out profile description.Exceed component body for preventing thermal grease and flow to component's feet generation defective products, coating web plate bore size is slightly less than components and parts actual size, reserved 0.5mm-1mm spacing between the two, during specific design be by the outline line described with components and parts locating hole for datum mark reduces corresponding ratio, the final outline line obtained (solid line in Fig. 2) is the final position of opening of coating web plate and bore size.
(2) second method: with pcb board high performance components silk-screen frame (heavy line in Fig. 3) for benchmark carries out profile description, exceed component body for preventing thermal grease and flow to component's feet generation defective products, coating web plate bore size is slightly less than components and parts actual size, reserved 0.5mm-1mm spacing between the two, during specific design be by the outline line described with silk-screen frame diagonal intersection point for datum mark reduces corresponding ratio (solid line as in Fig. 4), and then undertaken calibrating (solid line in Fig. 5) by components and parts locating hole, the final outline line obtained is the final position of opening of coating web plate and bore size.
Very large technological deficiency is had, the wherein common ground of technological deficiency by the thermal grease coating web plate of above two kinds of method design:
Pcb board silk-screen frame only identifies the general location of components and parts on PCB, can not determine the exact position of components and parts, so the coating web plate position of opening determined for benchmark with pcb board components and parts silk-screen frame and perforate size are inaccurate.If when the coating web plate that it is reference design that components and parts physical location and silk-screen frame deviation comparatively greatly, use with silk-screen frame applies thermal grease, there will be components and parts portion without thermal grease on the one hand, cause components and parts radiating effect bad; The thermal grease of another aspect components and parts portion exceeds component body and flow to pin, causes the generation of defective products.
The difference of above two kinds of method for designing technological deficiencies:
(1) in first method with pcb board silk-screen frame for benchmark depict coating profile after, with components and parts locating hole for datum mark reduces corresponding proportion.If but components and parts locating hole is not placed in the middle, but kept to the side, take locating hole as the profile that benchmark reduces, there will be the reserved spacing of components and parts on the one hand excessive, thermal grease coating is not in place, causes components and parts radiating effect bad; Components and parts are while reserved spacing is too small on the other hand, and thermal grease easily flow to the generation that component's feet causes defective products.
(2) in second method with pcb board silk-screen frame for benchmark depict coating profile after, with diagonal intersection point for benchmark reduces corresponding proportion.Equally, if components and parts locating hole is not placed in the middle, but keep to the side, diagonal intersection point is the profile that benchmark reduces, although consistent with former profile surrounding spacing, due to diagonal crosspoint for benchmark convergent-divergent time, position of positioning hole offsets, perforate profile can be caused again to offset eventually through after locating hole calibration, the reserved spacing of components and parts that there will be equally in first method is excessive, and the thermal grease coating components and parts radiating effect that causes not in place is bad; And another side to reserve spacing too small, thermal grease easily flow to the generation that component's feet causes defective products.
Therefore, how to solve and adopt the reserved spacing of the components and parts existed in existing method for designing excessive, the thermal grease coating components and parts radiating effect that causes not in place is bad; And another side to reserve spacing too small, thermal grease easily flow to problem that component's feet causes defective products to produce becomes the important technological problems that those skilled in the art need to solve.
Summary of the invention
For above-mentioned prior art present situation, technical problem to be solved by this invention is, there is provided a kind of thermal grease to apply the method for designing of web plate, excessive to solve the reserved spacing of the components and parts existed in prior art, the thermal grease coating radiating effect that causes not in place is bad; And another side to reserve spacing too small, thermal grease easily flow to the problem that component's feet causes defective products to produce.
In order to solve the problems of the technologies described above, the method for designing of a kind of thermal grease coating web plate provided by the present invention, comprises the steps:
S1, draw the outline line of all high performance components needing to apply thermal grease;
S2, the outline line of drawn all high performance components is obtained the modified profile line of all high performance components to bias internal predeterminable range;
S3, draw in order to the outline line of the radiator of all described high performance components heat radiations;
S4, with the outline line of described radiator for the modified profile line of benchmark by all described high performance components combines; And
S5, by the modified profile line overall separation of all described high performance components after combining out, be position of opening and the perforate size of thermal grease coating web plate.
Wherein in an embodiment, described step S1 also comprises the step of the outline line drawing all described high performance components locating holes; Described step S2 also comprises the step of the outline line drawing described radiator locating hole; In described step S3, combined by the outline line of all described high performance components locating holes and the modified profile line of outline line to all described high performance components of described radiator locating hole.
Wherein in an embodiment, in described step S4, the modified profile line overall separation of all described high performance components after combining out be specially: deleted by the outline line of all outline lines of described high performance components locating hole, the outline line of described radiator and described radiator locating hole, remaining lines are the modified profile line of all described high performance components.
Wherein in an embodiment, in described step S1, described predeterminable range is 0.5mm-1mm.
The method for designing of thermal grease coating web plate of the present invention, eliminate the relatively large deviation problem because existing between PCB silk-screen frame position deviation and the web plate position of opening carrying out convergent-divergent and cause with components and parts locating hole not placed in the middle or diagonal intersection point and bore size and actual component locations and actual required coated area size, improve the precision of thermal grease coating position and coating size, thus thoroughly solve because applying position and coated area size and actual deviation larger, components and parts portion is on the one hand caused without thermal grease, to cause components and parts radiating effect bad; The thermal grease of another aspect components and parts portion exceeds component body and flow to pin, causes the problem that defective products produces.
The beneficial effect that additional technical feature of the present invention has will be described in this description detailed description of the invention part.
Accompanying drawing explanation
Fig. 1 and Fig. 2 is the schematic diagram of the first method for designing of thermal grease coating web plate in prior art, wherein, what Fig. 1 showed is for benchmark carries out profile description with the silk-screen frame of pcb board high performance components, heavy line in Fig. 1 is the silk-screen frame of pcb board high performance components, and what Fig. 2 showed is with the components and parts locating hole final outline line that corresponding ratio obtains for datum mark reduces by the outline line described;
Fig. 3, Fig. 4 and Fig. 5 are the schematic diagram of the second method for designing of thermal grease coating web plate in prior art, wherein, what Fig. 3 showed is for benchmark carries out profile description with the silk-screen frame of pcb board high performance components, heavy line in Fig. 3 is the silk-screen frame of pcb board high performance components, what Fig. 4 showed is by the outline line described with the silk-screen frame diagonal intersection point final outline line that corresponding ratio obtains for datum mark reduces, and what Fig. 5 showed is undertaken calibrating the final outline line obtained by components and parts locating hole;
Fig. 6 is the flow chart of method for designing of the thermal grease coating web plate in the embodiment of the present invention;
Fig. 7 to Figure 11 is the schematic diagram of method for designing of the thermal grease coating web plate in the embodiment of the present invention, wherein, what Fig. 7 showed is the outline line needing the high performance components applying thermal grease, Fig. 8 display be the outline line that the outline line of drawn high performance components obtains to bias internal predeterminable range, Fig. 9 display be the outline line of radiator, Figure 10 display be with the outline line of radiator for benchmark the outline line of all high performance components is combined after view, Figure 11 display be the lines obtained after the outline line of radiator and locating hole is deleted.
Detailed description of the invention
And the present invention is described in detail in conjunction with the embodiments below with reference to the accompanying drawings.It should be noted that, when not conflicting, the feature in following embodiment and embodiment can combine mutually.
As shown in Figure 6, the method for designing of the thermal grease coating web plate in the embodiment of the present invention, comprises the steps:
Step S1, carry out identification select needing to apply the high performance components of thermal grease, and draw the outline line of all high performance components one by one, comprise the locating hole of high performance components (as shown in Figure 7, Fig. 7 only draws the outline line of a high performance components wherein, and other all high performance components by that analogy).
Step S2, by the outline line of drawn all high performance components to bias internal predeterminable range (be preferably 0.5mm-1mm), the outline line of locating hole does not offset, the up-to-date wire frame obtained is the modified profile line (solid line as in Fig. 8) of high performance components, and other high performance components by that analogy.
Step S3, to draw in order to the outline line of the radiator of all described high performance components heat radiations, comprise the radiator locating hole (as shown in Figure 9, be only described with a kind of shape radiator at this, but be not limited to this shape radiator) of radiator.
Step S4, with the outline line of described radiator for the modified profile line of benchmark by all described high performance components combines, preferably, combined (as shown in Figure 10) by the outline line of all described high performance components locating holes and the modified profile line of outline line to all described high performance components of described radiator locating hole, thus determine the final position of opening of web plate;
Step S5, by the modified profile line overall separation of all described high performance components after combining out, be position of opening and the perforate size (as shown in figure 11) of thermal grease coating web plate.Be specially: deleted by the outline line of all outline lines of described high performance components locating hole, the outline line of described radiator and described radiator locating hole, remaining lines are the modified profile line of all described high performance components.
To sum up, the method for designing of the thermal grease coating web plate of the embodiment of the present invention, adopt the thermal grease coating web plate of brand-new method for designing development and Design, eliminate the relatively large deviation problem because existing between PCB silk-screen frame position deviation and the web plate position of opening carrying out convergent-divergent and cause with components and parts locating hole not placed in the middle or diagonal intersection point and bore size and actual component locations and actual required coated area size completely, improve the precision of thermal grease coating position and coating size, thus thoroughly solve because applying position and coated area size and actual deviation larger, cause one side components and parts portion without thermal grease, cause components and parts radiating effect bad, the thermal grease of another aspect components and parts portion exceeds component body and flow to pin, causes the problem that defective products produces.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It 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.
Claims (4)
1. a method for designing for thermal grease coating web plate, is characterized in that, comprise the steps:
S1, draw the outline line of all high performance components needing to apply thermal grease;
S2, the outline line of drawn all high performance components is obtained the modified profile line of all high performance components to bias internal predeterminable range;
S3, draw in order to the outline line of the radiator of all described high performance components heat radiations;
S4, with the outline line of described radiator for the modified profile line of benchmark by all described high performance components combines; And
S5, by the modified profile line overall separation of all described high performance components after combining out, be position of opening and the perforate size of thermal grease coating web plate.
2. the method for designing of thermal grease coating web plate according to claim 1, it is characterized in that, described step S1 also comprises the step of the outline line drawing all described high performance components locating holes; Described step S2 also comprises the step of the outline line drawing described radiator locating hole; In described step S3, combined by the outline line of all described high performance components locating holes and the modified profile line of outline line to all described high performance components of described radiator locating hole.
3. the method for designing of thermal grease coating web plate according to claim 2, it is characterized in that, in described step S4, the modified profile line overall separation of all described high performance components after combining out be specially: deleted by the outline line of all outline lines of described high performance components locating hole, the outline line of described radiator and described radiator locating hole, remaining lines are the modified profile line of all described high performance components.
4. the method for designing of thermal grease coating web plate according to claim 1, it is characterized in that, in described step S1, described predeterminable range is 0.5mm-1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410427019.4A CN104260542B (en) | 2014-08-27 | The method for designing of thermal grease coating web plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410427019.4A CN104260542B (en) | 2014-08-27 | The method for designing of thermal grease coating web plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104260542A true CN104260542A (en) | 2015-01-07 |
| CN104260542B CN104260542B (en) | 2017-01-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108608724A (en) * | 2016-12-09 | 2018-10-02 | 常州三立精图光电有限公司 | It is a kind of without net knot version design method |
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| JP2010238756A (en) * | 2009-03-30 | 2010-10-21 | Dainippon Printing Co Ltd | Manufacturing method of substrate sheet with conductive bump and manufacturing method of multilayered printed wiring board |
| CN203565280U (en) * | 2013-11-07 | 2014-04-30 | 格力电器（芜湖）有限公司 | Silicone brushing device for parallel flow condenser component |
| CN103779445A (en) * | 2014-02-11 | 2014-05-07 | 苏州众显电子科技有限公司 | Method for improving positioning accuracy of center line of concentrating photovoltaic cell |
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000077833A (en) * | 1998-08-31 | 2000-03-14 | Matsushita Electric Ind Co Ltd | Electrode forming method and pyroelectric infrared sensor using the method |
| US6775899B1 (en) * | 1999-05-24 | 2004-08-17 | Matsushita Electric Industrial Co., Ltd. | Method for inspecting printing state and substrate |
| CN101026028A (en) * | 2006-02-24 | 2007-08-29 | Koa株式会社 | Electronic device equipped with resistance component and its making method |
| CN101657063A (en) * | 2008-08-19 | 2010-02-24 | 京东方科技集团股份有限公司 | Method for manufacturing radiating circuit board and radiating circuit board |
| JP2010238756A (en) * | 2009-03-30 | 2010-10-21 | Dainippon Printing Co Ltd | Manufacturing method of substrate sheet with conductive bump and manufacturing method of multilayered printed wiring board |
| CN203565280U (en) * | 2013-11-07 | 2014-04-30 | 格力电器（芜湖）有限公司 | Silicone brushing device for parallel flow condenser component |
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| CN108608724A (en) * | 2016-12-09 | 2018-10-02 | 常州三立精图光电有限公司 | It is a kind of without net knot version design method |
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