US20130111754A1 - Method of manufacturing heat sink frames - Google Patents
Method of manufacturing heat sink frames Download PDFInfo
- Publication number
- US20130111754A1 US20130111754A1 US13/292,380 US201113292380A US2013111754A1 US 20130111754 A1 US20130111754 A1 US 20130111754A1 US 201113292380 A US201113292380 A US 201113292380A US 2013111754 A1 US2013111754 A1 US 2013111754A1
- Authority
- US
- United States
- Prior art keywords
- heat sink
- shearing
- sink model
- model
- notches
- 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.)
- Abandoned
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/14—Making other products
- B21C23/142—Making profiles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
A method of manufacturing heat sink frames comprises the steps of: extruding an aluminum material to form a heat sink model; shearing multiple portions on a length of the heat sink model where are desired to be bent to form a plurality of shearing notches according to required dimension specification; bending the heat sink model at the shearing notches to form a plurality of bend angles through respectively connecting edges of each of the shearing notches; and fastening a front end of the heat sink model to a rear end of the heat sink model to form a frame. Through extruding, shearing and bending processes, fabrication is simpler and material and labor hours can be saved to enhance heat conduction efficiency and reduce production cost.
Description
- The present invention relates to a method of manufacturing heat sink frames and particularly to a method of manufacturing a heat sink structure for LCD backlight modules.
- Liquid crystal display (LCD) has many advantages, such as slimmer, lighter, lower radiation and lower power consumption, thus has fully replaced the traditional cathode ray tube (CRT) in few years and become the mainstream of information product on the market. Because the LCD panel does not generate light, a backlight module has to be deployed at the rear side of the LCD panel to provide light needed.
- The conventional backlight module uses cold cathode fluorescent lamp (CCFL) which has many disadvantages, such as containing mercury, and also is inferior to the LED (Light Emitting Diode) in terms of response speed, monochromatism, volume and power consumption. The prevailing trend of LCD at present is towards greater dimension, slimmer and lighter. Hence LED has gradually displaced CCFL and becomes the main backlight source of new generation of LCD.
- Although the LED has the advantages of smaller size, greater luminosity and lower power consumption, it generates heat during photoelectric conversion that creates problems such as chromatic polarization. Thus how to prevent high temperature from affecting product reliability and lifespan through cooling technique has become an urgent issue in the industry.
-
FIG. 1 illustrates a conventional backlight module cooling apparatus 1 of an LCD. It includes a plurality ofLED modules 11, a plurality ofheat sink plates 12 and ametal back panel 13. TheLED modules 11 are mounted respectively on theheat sink plate 12 which is further fastened to themetal back panel 13. When theLED modules 11 are in use, heat generated therefrom is transmitted to themetal back panel 13 via theheat sink plates 12 and dissipated outside the LCD. Such a structure is difficult to assemble. Theheat sink plates 12 andmetal back panel 13 are contacted with each other, thus heat is hard to be transmitted. Moreover, different specifications of molds for theheat sink plates 12 andmetal back panel 13 have to be individually fabricated to match varying sizes of LCDs that results in higher production cost. There is still room for improvement. - The primary object of the present invention is to provide a method of manufacturing heat sink frames to overcome the drawbacks of the cooling structure of conventional backlight modules that have limited heat conduction efficiency and higher production cost.
- To achieve the foregoing object, the method of manufacturing heat sink frames according to the invention comprises the steps as follows: extruding an aluminum material to form a heat sink model; shearing multiple portions on a length of the heat sink model where are desired to be bent to form a plurality of shearing notches according to required dimension specification; bending the heat sink model at the shearing notches to form a plurality of bend angles through respectively connecting edges of each of the shearing notches; and fastening a front end of the heat sink model to a rear end of the heat sink model to form a frame.
- The step of fastening the front end to the rear end of the heat sink model can be done via stamping and riveting or wedging. The edges of the shearing notch and the front and rear ends of the heat sink model respectively have a plurality of apertures which are riveted by a plurality of bumps formed on a riveting plate via stamping, thereby a frame is tightly formed.
- Alternatively, the edges of the shearing notch and the front and rear ends of the heat sink model may respectively have a dovetail saddle and a dovetail groove. The dovetail saddle is wedged in the dovetail groove to form a frame.
- The method provided by the invention has many advantages, notably:
- 1. The heat sink frame manufactured by the method of the invention is formed integrally, hence can save fabrication process and labor hours, and also can overcome the drawback of the conventional backlight module that the heat conduction efficiency is lower after the back panel and heat sink plate are coupled.
- 2. The heat sink frame of the invention is formed by extrusion, thus its length is not limited and can be adaptable to various specifications of backlight modules. Moreover, only if the shearing notches are formed at desired locations according to required dimension specifications, the need of fabricating molds according to different dimensions can be eliminated, thus production cost can be reduced significantly. Practicality and usability improve.
- The foregoing, as well as additional objects, features and advantages of the invention will be more readily apparent from the following detailed description, which proceeds with reference to the accompanying drawings.
-
FIG. 1 is a perspective view of a cooling structure of a conventional backlight module. -
FIG. 2 is a flowchart of the method of manufacturing heat sink frames according to the invention. -
FIG. 3 is a schematic view of an extruded heat sink model according to the invention. -
FIG. 4A is a schematic view showing the heat sink model with a plurality of shearing notches according to a first embodiment of the invention. -
FIG. 4B is a fragmentary enlarged view according toFIG. 4A . -
FIG. 5 is a schematic view showing the heat sink model with its front end and rear end coupled together according to the first embodiment of the invention. -
FIG. 6 is a cross section taken on line A-A inFIG. 5 . -
FIG. 7 is a schematic view showing a finished product according to the first embodiment of the invention. -
FIG. 8 is a schematic view showing the heat sink model in a bending condition according to a second embodiment of the invention. -
FIG. 9 is a schematic view showing the heat sink model in a coupling condition according to the second embodiment of the invention. -
FIG. 10 is a schematic view showing a finished product according to the second embodiment of the invention. - Please refer to
FIG. 2 , the invention aims to provide a method of manufacturing heat sink frames. The method comprises the steps of: - a. S2: Extruding an aluminum material to form a heat sink model;
- b. S3: Shearing multiple portions on a length of the heat sink model where are desired to be bent to form a plurality of shearing notches according to required dimension specification;
- c. S4: Bending the heat sink model at the shearing notches to form a plurality of bend angles through respectively connecting edges of each of the shearing notches; and
- d. S5: Fastening a front end of the heat sink model to a rear end of the heat sink model to form a frame via stamping and riveting or wedging.
- Please refer to
FIGS. 3 through 6 for a first embodiment of the invention. First, aheat sink model 6 is fabricated via extruding an aluminum material. The length of theheat sink model 6 is adjustable according to actual requirements. Next, a plurality of shearingnotches 61 are formed via shearing at selected portions on a length of theheat sink model 6 where are desired to be bent according to required dimension specification. The edges of each shearingnotch 61 and the front and rear ends of theheat sink model 6 respectively include a plurality ofapertures 62. Then theheat sink model 6 is bent at theshearing notches 61 to form a plurality ofbend angles 63 through respectively connecting the edges of each shearingnotch 61. Finally, theapertures 62 are riveted by a plurality ofbumps 71 formed on ariveting plate 7 via stamping to form theframe 8 tightly. -
FIG. 7 illustrates a finished product fabricated according to the method previously discussed. It includes aframe 8 and a plurality ofriveting plates 7. Theframe 8 is formed by bending theheat sink model 6 that is formed by extruding an aluminum material and has a plurality of bend angles 63 each has ashearing notch 61 on the inner side. The edges of the shearingnotch 61 and the front and rear ends of theheat sink model 6 respectively include a plurality ofapertures 62. Eachriveting plate 7 has a plurality ofbumps 71 corresponding to theapertures 62. Theapertures 62 are riveted by thebumps 71 of theriveting plate 7 via stamping to integrally form theframe 8 tightly. - Please refer to
FIGS. 8 through 10 for a second embodiment of the invention. First, aheat sink model 6 a is fabricated via extruding an aluminum material. Next, a plurality ofshearing notches 61 a are formed via shearing at selected portions on theheat sink model 6 a where are desired to be bent. The edges of each shearingnotch 61 a and the front and rear ends of theheat sink model 6 a respectively include adovetail saddle 611 and amating dovetail groove 612. Then theheat sink model 6 a is bent at theshearing notches 61 a to form a plurality of bend angles 63 a through respectively connecting the edges of each shearingnotch 61 a. Finally, thedovetail saddle 611 is wedged in thedovetail groove 612 to form aframe 8 a. - As a conclusion, the method of manufacturing heat sink frames provided by the invention can eliminate the shortcomings of the conventional techniques and improve practicality and usability.
- While the preferred embodiments of the invention have been set forth for the purpose of disclosure, modifications of the disclosed embodiments of the invention as well as other embodiments thereof may occur to those skilled in the art. Accordingly, the appended claims are intended to cover all embodiments which do not depart from the spirit and scope of the invention.
Claims (4)
1. A method of manufacturing heat sink frames, comprising the steps of:
a. extruding an aluminum material to form a heat sink model;
b. shearing multiple portions on a length of the heat sink model where are desired to be bent to form a plurality of shearing notches according to required dimension specification;
c. bending the heat sink model at the plurality of shearing notches to form a plurality of bend angles through respectively connecting edges of each of the plurality of shearing notches; and
d. fastening a front end of the heat sink model to a rear end of the heat sink model to form a frame.
2. The method of claim 1 , wherein the step of fastening the front end to the rear end of the heat sink model is selectively performed via stamping and riveting or wedging.
3. The method of claim 2 , wherein the edges of the shearing notch and the front and rear ends of the heat sink model respectively include a plurality of apertures which are riveted by a plurality of bumps of a riveting plate via stamping to form the frame tightly.
4. The method of claim 2 , wherein the edges of the shearing notch and the front and rear ends of the heat sink model respectively include a dovetail saddle and a dovetail groove, the dovetail saddle being wedged in the dovetail groove to form the frame.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/292,380 US20130111754A1 (en) | 2011-11-09 | 2011-11-09 | Method of manufacturing heat sink frames |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/292,380 US20130111754A1 (en) | 2011-11-09 | 2011-11-09 | Method of manufacturing heat sink frames |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130111754A1 true US20130111754A1 (en) | 2013-05-09 |
Family
ID=48222717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/292,380 Abandoned US20130111754A1 (en) | 2011-11-09 | 2011-11-09 | Method of manufacturing heat sink frames |
Country Status (1)
Country | Link |
---|---|
US (1) | US20130111754A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110000304A (en) * | 2019-05-13 | 2019-07-12 | 湖南八方声学新材料股份有限公司 | A kind of frame process equipment |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6516583B1 (en) * | 1999-03-26 | 2003-02-11 | David L. Houghton | Gusset plate connections for structural braced systems |
JP2005032575A (en) * | 2003-07-04 | 2005-02-03 | Sumitomo Rubber Ind Ltd | Direct backlight |
US20100164859A1 (en) * | 2008-12-31 | 2010-07-01 | Innolux Display Corp. | Frame, liquid crystal display employing the frame, and method for manufacturing the frame |
US8151616B2 (en) * | 2005-08-15 | 2012-04-10 | Ensto Finland Oy | Method for manufacturing enclosures of a sheet material and an enclosure of a sheet material |
US8499607B2 (en) * | 2009-08-28 | 2013-08-06 | GM Global Technology Operations LLC | Forming of complex shapes in aluminum and magnesium alloy workpieces |
-
2011
- 2011-11-09 US US13/292,380 patent/US20130111754A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6516583B1 (en) * | 1999-03-26 | 2003-02-11 | David L. Houghton | Gusset plate connections for structural braced systems |
JP2005032575A (en) * | 2003-07-04 | 2005-02-03 | Sumitomo Rubber Ind Ltd | Direct backlight |
US8151616B2 (en) * | 2005-08-15 | 2012-04-10 | Ensto Finland Oy | Method for manufacturing enclosures of a sheet material and an enclosure of a sheet material |
US20100164859A1 (en) * | 2008-12-31 | 2010-07-01 | Innolux Display Corp. | Frame, liquid crystal display employing the frame, and method for manufacturing the frame |
US8499607B2 (en) * | 2009-08-28 | 2013-08-06 | GM Global Technology Operations LLC | Forming of complex shapes in aluminum and magnesium alloy workpieces |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110000304A (en) * | 2019-05-13 | 2019-07-12 | 湖南八方声学新材料股份有限公司 | A kind of frame process equipment |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN202024202U (en) | LED (light emitting diode) lamp strip fixing structure and liquid crystal display | |
CN202082747U (en) | Display device and backlight module | |
CN102537884B (en) | Be convenient to back board structure and the liquid crystal display thereof of changing light-emitting diode light bar | |
JP3173051U (en) | Light source device, backlight module, liquid crystal display | |
CN101004515A (en) | Full run-down type backlight module | |
CN103439831A (en) | Sidelight type liquid crystal module, direct type liquid crystal module and television | |
CN202884674U (en) | Liquid crystal mould group backlight component | |
CN103042370A (en) | Heat dissipation frame manufacturing method and products thereof | |
US20130111754A1 (en) | Method of manufacturing heat sink frames | |
US20130208212A1 (en) | Backlight module and liquid crystal display | |
CN108646452B (en) | Liquid crystal display device | |
US8777475B2 (en) | Back frame, method for manufacturing back frame, and backlight system | |
US8727551B2 (en) | Backlight system | |
US20140376256A1 (en) | Light source module | |
WO2014059701A1 (en) | Backlight module and liquid crystal display device | |
CN102072442A (en) | LED backlight module and liquid crystal module thereof and display equipment | |
US8123392B2 (en) | Linear light guiding module | |
US8836884B2 (en) | Flat panel display device, stereoscopic display device, and liquid crystal display device | |
CN102865510B (en) | Backlight unit and liquid-crystal display device | |
CN210803929U (en) | Display back plate with multi-stage bosses | |
CN210666269U (en) | Heat dissipation structure of backlight driving power supply of liquid crystal display television | |
CN219496855U (en) | Backlight module for notebook computer display screen | |
US20110299296A1 (en) | Backlight module and heat dissipation module | |
US20130128348A1 (en) | Flat Panel Display Device, Stereoscopic Display Device, Plasma Display Device | |
US8842236B2 (en) | Backlight module and liquid crystal display device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: GOANG HANN ENTERPRISE CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YANG, CHIEN-HO;WEI, TSAI-YUAN;REEL/FRAME:027201/0442 Effective date: 20111101 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |