CN202585390U - Radiating fin - Google Patents
Radiating fin Download PDFInfo
- Publication number
- CN202585390U CN202585390U CN 201220136448 CN201220136448U CN202585390U CN 202585390 U CN202585390 U CN 202585390U CN 201220136448 CN201220136448 CN 201220136448 CN 201220136448 U CN201220136448 U CN 201220136448U CN 202585390 U CN202585390 U CN 202585390U
- Authority
- CN
- China
- Prior art keywords
- pin
- end portion
- fin
- insertion port
- radiating fin
- 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.)
- Expired - Lifetime
Links
- 238000003780 insertion Methods 0.000 claims abstract description 10
- 230000037431 insertion Effects 0.000 claims abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 15
- 239000004411 aluminium Substances 0.000 claims description 14
- 229910052782 aluminium Inorganic materials 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 230000008961 swelling Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 238000012356 Product development Methods 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Landscapes
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The utility model relates to a radiating fin which is mainly used for heat dissipation of an electronic component. The radiating fin comprises a main sheet body and a pin. The main sheet body is provided with a pin insertion port and a chip installation hole. The pin comprises a tip portion and an end portion. The tip portion and the end portion form one body. The end portion of the pin is inserted into the pin insertion port. A thickness of the end portion of the pin is the same with the thickness of the pin insertion port and the two are matched with each other. A width of the end portion of the pin is greater than the width of the pin insertion port. Two sides of the end portion of the pin are located outside the pin insertion port. The end portion of the pin and the pin insertion port form interference fitting. The two sides of the end portion of the pin are hammered so that the two sides of the end portion are deformed and expanded to the main sheet body. The structure of the radiating fin of the utility model is designed reasonably. Operation is simple. Experiment personnel can conveniently manufacture the radiating fin needed by the experiment. Embarrassment of producing the single radiating fin by using a mass production mode or using tools of a special mold and the like is avoided.
Description
Technical field
The utility model relates to a kind of fin, is mainly used in the heat radiation of electronic devices and components.
Background technology
Fin is a kind of device of giving the easy heat-generating electronic elements heat radiation in the electrical equipment; How make tabular, sheet, splintery etc. by aluminium alloy, brass or bronze; Will use considerable fin like cpu central processing unit in the computer, and for example element such as power tube all will use fin in the Switching Power Supply.General fin in use will be coated with the last layer heat-conducting silicone grease at electronic component and fin contact-making surface, and the heat that components and parts are sent is more effective to be transmitted on the fin, is dispersed in the surrounding air through fin and goes.
In the electronic circuit board of large power, electrically product-deriveds such as Switching Power Supply; Easy heating components and parts such as high power transistor, high-power FET, rectifying tube are ubiquitous; Need in the use to cooperate fin to take away the heat that produces in the work; Otherwise excessive heat can cause the electronic devices and components fault, even causes the whole system collapse.There is statistics to show, 2 ℃ of the every risings of electronic devices and components temperature, reliability decrease 10%, 1/6 the when life-span during 50 ℃ of temperature rises has only temperature rise to be 25 ℃.And this type of high frequency switch power has the equipment of high-power heater members, and temperature influences the most important factor of its reliability especially.Therefore, fin has application very widely in this type circuit board.
Pin is that fin is fixed on the part on the circuit board, and the part of Chang Zuowei radiator occurs, but the convenience of making for radiator is often separated manufacturing with fin and pin, couples together with other way again.
The aluminium fin is good owing to radiating effect, and processing mode is simple, the application that has obtained batch with low cost.But, so in actual use, need the copper material pin be fixed in the aluminium heat sink through other technology, to make things convenient for the use of aluminium heat sink because aluminium can't be directly weld with pcb board.At present; The aluminium heat sink of producing in batches is technical very ripe in fixing " welding pin "; But in new product development; The circuit developer is being perplexed in the making of the fin of single-piece demand always, if utilize the mode of producing in batches to remove to obtain single or several fin, will inevitably increase cost and also lose time simultaneously.Therefore the method that how to obtain the single-piece fin with simple machining tool in the laboratory is very significant.
Referring to Fig. 1, be the batch heat radiating fin structure form of generally using at present, aluminium heat sink and welding pin adopt clinching method to fix.High-power relatively series of products, higher to the positioning accuracy request of fin, corresponding, also can propose higher requirement for machining accuracy, the positioning accuracy of the copper sheet of aluminium fin riveted joint, thereby cause the high problem of processing cost.And because copper sheet is riveted on the aluminium fin, thereby the copper sheet that also usually can occur riveting gets loose, crooked phenomenon, causes fixing not firm, the problem that can't fix of fin, influences radiating effect.And in the fin manufacturing, need the equipment and mold that dashes staking of specialty, be not suitable for test with single-piece or small lot batch manufacture demand.
Chinese patent number: 200920246279.6, a kind of aluminium fin is disclosed, have one-time formed fixing feet, the fixing feet outer surface is coated with and can welds material; Fixing feet is connected to the aluminium fin on the pcb board through the scolding tin welding manner through welding material, therefore can solve the technology difficult problem that traditional aluminium fin can't weld.Its defective is: during fin is made, need professional diel and be used for the equipment that surperficial plating can be welded material, cost is higher, also is not suitable for test with single-piece or small lot batch manufacture demand.
The utility model content
The utility model technical problem to be solved is to overcome existing above-mentioned deficiency in the prior art, and a kind of reasonable in design is provided, and easily manufactured, pin connects reliable fin.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of fin; Comprise main leaf body and pin; It is characterized in that: have pin on the described main leaf body and insert mouth and chip installing hole, described pin comprises tip and end, and tip and end are one; The end of said pin is inserted pin and is inserted mouth, and the pin end portion thickness equates that with the thickness that pin inserts mouth both match each other; The width of described pin end is greater than the width of pin insertion mouth, and the both sides of pin end are positioned at pin and insert outside the mouth; Described pin end is inserted between the mouth with pin and is connected through interference; The chip installing hole is used to install chip.
The described interference of the utility model connects the both sides that are meant hammering pin end, makes the both sides of end be out of shape also swelling to main leaf body.
The material of the described main leaf body of the utility model is an aluminium, and the material of pin is a copper.
The utility model compared with prior art; Has following positive effect: reasonable in design; Simple to operate, the experimenter can make easily needs the practice ground fin, avoids using the mode of production in enormous quantities or the embarrassment that special-purpose instruments such as mould remove to produce single fin.
Description of drawings
Fig. 1 is the decomposition texture sketch map of the utility model.
Fig. 2 inserts the structural representation of main leaf body for the utility model pin.
Fig. 3 is the structural representation that interference connects behind the utility model hammering pin.
Fig. 4 is the structure for amplifying sketch map of a-quadrant among Fig. 1.
Fig. 5 is the structure for amplifying sketch map in B zone among Fig. 2.
Among the figure: 1 main leaf body, 11 chip installing holes, 12 pins insert mouth, 2 pins, 21 tips, 22 ends, 3 screws, 4 chips.
Embodiment
Below in conjunction with accompanying drawing and through embodiment the utility model is described further.
Embodiment:
Referring to Fig. 1~Fig. 5, present embodiment comprises main leaf body 1 and pin 2, has pin on the main leaf body 1 and inserts mouth 12 and chip installing hole 11, and described pin 2 comprises tip 21 and end 22, and tip 21 is an one with end 22; The end 22 of said pin 2 is inserted pin and is inserted mouth 12, and the thickness h 1 of end 22 equates that with the thickness h 2 that pin inserts mouth 12 both match each other; The width H1 of described end 22 is greater than the width H2 of pin insertion mouth 12, and the both sides of end 22 are positioned at pin and insert outside the mouth 12; Described end 22 is inserted between the mouth 12 with pin and is connected through interference, and the both sides of hammering end 22 make the both sides of end 22 be out of shape also swelling to main leaf body 1.
In the present embodiment, the material of main leaf body 1 is an aluminium, and the material of pin 2 is a copper.
Present embodiment is easy to make, and the experimenter can make easily needs the practice ground fin, and concrete steps are following:
(1) get the aluminium flake of required thickness, cutting obtains the size of actual needs, as main leaf body 1;
(2) line make pin insert mouthfuls 12 with position such as chip installing hole 11, and cut out pin and insert mouthfuls 12, get out chip installing hole 11;
(3) utilize copper sheet to cut out pin 2;
(4) pin 2 is inserted in the pin insertion mouth 12 of main leaf body 1, the both sides of pin end 22 are positioned at pin and insert outside the mouth 12;
(5) with the both sides of instrument hammering leads ends portions 22 such as iron hammer, make its distortion and swelling to main leaf body 1, obtain both interference fit joint;
(6) be screwed into chip installing hole 11 with screw 3 at last chip 4 is installed.
In addition, need to prove, specific embodiment described in this specification, as long as the undeclared concrete shape and size of its part, then this part can be Any shape and the size that adapts with its structure; Simultaneously, the part title of getting also can be different.Allly conceive equivalence or the simple change that described structure, characteristic and principle are done, include in the protection range of the utility model patent according to the utility model patent.
Claims (3)
1. a fin comprises main leaf body and pin, it is characterized in that: have pin on the described main leaf body and insert mouth and chip installing hole, described pin comprises tip and end, and tip and end are one; The end of said pin is inserted pin and is inserted mouth, and the pin end portion thickness equates that with the thickness that pin inserts mouth both match each other; The width of described pin end is greater than the width of pin insertion mouth, and the both sides of pin end are positioned at pin and insert outside the mouth; Described pin end is inserted between the mouth with pin and is connected through interference.
2. a kind of fin according to claim 1 is characterized in that: described interference connects the both sides that are meant hammering pin end, makes the both sides of end be out of shape also swelling to main leaf body.
3. a kind of fin according to claim 1 and 2 is characterized in that: the material of described main leaf body is an aluminium, and the material of pin is a copper.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220136448 CN202585390U (en) | 2012-03-31 | 2012-03-31 | Radiating fin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220136448 CN202585390U (en) | 2012-03-31 | 2012-03-31 | Radiating fin |
Publications (1)
Publication Number | Publication Date |
---|---|
CN202585390U true CN202585390U (en) | 2012-12-05 |
Family
ID=47254772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 201220136448 Expired - Lifetime CN202585390U (en) | 2012-03-31 | 2012-03-31 | Radiating fin |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN202585390U (en) |
-
2012
- 2012-03-31 CN CN 201220136448 patent/CN202585390U/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102333414B (en) | Heat dissipation structure, manufacturing method for same and electronic device with same | |
CN203896645U (en) | Servo amplifier | |
CN202281972U (en) | Electronic device and heat dissipation device thereof | |
CN204493392U (en) | With the screw of temperature sensing function | |
US10349558B2 (en) | Method of manufacturing heat dissipating device | |
CN202585390U (en) | Radiating fin | |
CN103687419A (en) | Radiator and manufacturing method thereof | |
CN203233636U (en) | Novel power radiating fin structure, and connection structure of MOS Transistor and PCB | |
CN204442828U (en) | A kind of PCB of high efficiency and heat radiation | |
CN214627473U (en) | Bottom surface cooling system of cooling chip | |
CN201000887Y (en) | Rectifier diode naked crystal structure on radiation fin | |
CN205864941U (en) | A kind of heat-radiating device of electric component | |
CN105101647A (en) | Manufacturing method of heat dissipation PCB (printed circuit board) | |
CN201174855Y (en) | Radiator assembly | |
CN211321839U (en) | Radiator with built-in power resistor | |
CN103384442A (en) | Heat conducting structure with electronic power element adhered on circuit board | |
CN203743079U (en) | Fan module | |
CN202307863U (en) | Radiator for vertical MOS-transistor-type electronic component | |
CN206923217U (en) | Split radiator | |
CN102316701A (en) | Heat radiation device | |
CN205331826U (en) | Light -emitting device | |
CN103796474A (en) | Circuit board heat dissipation structure | |
CN202948913U (en) | Radiating device tightly fitted with heat pipe | |
CN203967951U (en) | Supply unit | |
CN203482488U (en) | Circuit board with good thermal conductivity |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee | ||
CP01 | Change in the name or title of a patent holder |
Address after: Hangzhou City, Zhejiang province Ling'an 311300 Jincheng Street stone mirror Street No. 777 Patentee after: ZHEJIANG SHEEN TECHNOLOGY CO., LTD. Address before: Hangzhou City, Zhejiang province Ling'an 311300 Jincheng Street stone mirror Street No. 777 Patentee before: Zhejiang Xiying Science & Technology Co., Ltd. |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20121205 |