US20160153468A1 - Thin fan and manufacturing method thereof - Google Patents
Thin fan and manufacturing method thereof Download PDFInfo
- Publication number
- US20160153468A1 US20160153468A1 US15/018,203 US201615018203A US2016153468A1 US 20160153468 A1 US20160153468 A1 US 20160153468A1 US 201615018203 A US201615018203 A US 201615018203A US 2016153468 A1 US2016153468 A1 US 2016153468A1
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- Prior art keywords
- housing
- circuit layout
- metal layer
- manufacturing
- plastic material
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
- F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
- F04D25/0633—Details of the magnetic circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0693—Details or arrangements of the wiring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
- F04D29/424—Double entry casings
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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
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/18—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material
- H05K3/181—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material by electroless plating
- H05K3/182—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material by electroless plating characterised by the patterning method
-
- 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
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/341—Surface mounted components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/64—Mounting; Assembling; Disassembling of axial pumps
- F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
- F04D29/646—Mounting or removal of fans
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
- H05K2201/0203—Fillers and particles
- H05K2201/0206—Materials
- H05K2201/0215—Metallic fillers
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09818—Shape or layout details not covered by a single group of H05K2201/09009 - H05K2201/09809
- H05K2201/0999—Circuit printed on or in housing, e.g. housing as PCB; Circuit printed on the case of a component; PCB affixed to housing
-
- 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
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/105—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by conversion of non-conductive material on or in the support into conductive material, e.g. by using an energy beam
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
-
- 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
- Y10T29/49316—Impeller making
Definitions
- the present invention relates to a fan and a manufacturing method thereof, and in particular, to a thin fan and a manufacturing method thereof.
- a heat sink with a fan thereon is usually equipped to the surface of the heat-generating electronic device.
- the cold airflow generated by the fan can acts enforced heat dissipation to the heat sink, and dissipates the waste heat generated from the heat-generating electronic devices.
- FIG. 1A is a schematic diagram of a conventional fan
- FIG. 1B is a sectional diagram of the fan shown in FIG. 1A
- the upper casing of the housing is omitted in FIGS. 1A and 1B
- the fan 1 includes an impeller 11 , a stator 12 , a circuit board 13 , a housing 14 , a bearing 15 , and a rotor 16 .
- the bearing 15 connects the impeller 11 and the housing 14
- the housing 14 covers the impeller 11 .
- the stator 12 and the circuit board 13 are disposed in the housing 14 , and disposed opposite to each other.
- the control circuit of the circuit board 13 can raise the voltage and current of the motor to make the motor magnetic excitation, and then the magnetic polarity of the motor can be converted alternately by the chip control, so that the mutual attraction and repulsion are generated between the motor and the magnet, which driving the rotor 16 and the impeller 11 to rotate.
- a circuit board with some surface mounted devices thereon is assembled with a stator and a bearing to form an assembly, and then the assembly is equipped with the rotor and the impeller into the housing to accomplish the fabrication of the fan.
- the fans for heat dissipation also need to be designed compactly. Nevertheless, the height and the space need to be reserved in the fan to accommodate the circuit board and the electronic devices disposed thereon, so the fan is hard to be compacted in height and size effectively. Besides, because the design of the shape and area of the circuit board is restricted by the airflow outlet channel and mechanism, the miniaturization of the fan is further limited.
- an object of the present invention is to provide a thin fan that can be reduced in height and maintain the heat-dissipating effect by more effectively using the limited height space.
- the present invention discloses a manufacturing method of a thin fan, which comprises the steps of: providing a plastic material containing a plurality of metal particles; molding the plastic material into a housing; removing a part of a surface of the housing to form a circuit layout area at the housing; and forming a metal layer in the circuit layout area.
- the plastic material comprises polyphthalamide (PPA) and/or liquid crystalline polymer (LCP).
- PPA polyphthalamide
- LCP liquid crystalline polymer
- the metal particles comprise copper particles and/or chromium particles.
- the step of removing a part of a surface of the housing comprises roughening the surface so as to expose the metal particles therein.
- the step of removing a part of a surface of the housing comprises illuminating the surface by laser.
- the step of forming a metal layer in the circuit layout area comprises forming the metal layer by chemical plating.
- the manufacturing method further comprises: disposing at least one electronic device on the metal layer; and assembling the housing, a stator, and an impeller.
- the step of disposing at least one electronic device on the metal layer comprises disposing the electronic device on the metal layer by soldering.
- the present invention discloses a thin fan, which comprises a housing, a stator, and an impeller.
- the housing comprises a circuit layout area and a metal layer.
- the circuit layout area has a plurality of metal particles, and some of the metal particles are exposed to the circuit layout area.
- the metal layer is disposed in the circuit layout area and connected with the exposed metal particles.
- the stator is disposed to the housing.
- the impeller is covered by the housing. There is no further circuit board disposed in the housing.
- the metal particles comprise copper particles and/or chromium particles.
- the housing further comprises at least one electronic device disposed on the metal layer.
- the thin fan further comprises a bearing and a rotor.
- the bearing is connected to the impeller.
- the rotor is disposed to the impeller and disposed corresponding to the stator.
- the housing comprises a circuit layout portion with the circuit layout portion thereon and a housing portion connected to the circuit lay out portion.
- the circuit layout portion contains metal particles, and the housing portion doesn't contain metal particles.
- the housing is formed by injection molding or cast molding.
- the housing further comprises a plurality of electronic devices which are disposed on the metal layer and coupled or electrically connected to each other through the metal layer.
- the present invention discloses a manufacturing method of a thin fan, comprising steps of: providing a first plastic material containing a plurality of metal particles; molding the first plastic material into a circuit layout portion; providing a second plastic material without metal particles; molding the second plastic material into a housing portion connected to the circuit layout portion to form a housing; removing a part of a surface of the circuit layout portion to form a circuit layout area; and forming a metal layer in the circuit layout area.
- the step of removing a part of a surface of the circuit layout portion comprises roughening the surface so as to expose the metal particles therein.
- the step of forming a metal layer in the circuit layout area comprises forming the metal layer by chemical plating.
- a plastic material containing a plurality of metal particles is molded into a housing first, then a part of a surface of the housing is removed to form a circuit layout area at the housing, and a metal layer is formed in the circuit layout area.
- the part of the surface of the housing can be removed by laser.
- the surface can be plane or uneven.
- some metal particles are exposed to the portion, illuminated by laser, of the surface of the housing.
- the metal layer is formed in the circuit layout area by chemical plating, connecting with the exposed metal particles.
- the electronic device is disposed on the metal layer by soldering.
- FIG. 1A is a schematic diagram of a conventional fan
- FIG. 1B is a sectional diagram of the fan shown in FIG. 1A ;
- FIG. 2A is a flow chart of a manufacturing method of a thin fan according to a preferred embodiment of the present invention.
- FIG. 2B is another flow chart of the manufacturing method of the thin fan of the present invention.
- FIG. 3 is a schematic diagram of a housing during the manufacturing process according to the preferred embodiment of the present invention.
- FIG. 4A is a sectional diagram of the housing during the manufacturing process according to the present invention.
- FIG. 4B is a sectional diagram of another aspect of the housing during the manufacturing process according to the present invention.
- FIG. 5 is another schematic diagram of the housing during the manufacturing process according to the present invention.
- FIG. 6A is another sectional diagram of the housing during the manufacturing process according to the present invention.
- FIG. 6B is another aspect of the housing during the manufacturing process according to the present invention.
- FIG. 7A is an exploded diagram of a thin fan according to the present invention.
- FIG. 7B is a sectional diagram of the thin fan shown in FIG. 7A ;
- FIG. 8 is an assembly diagram of the thin fan shown in FIG. 7A ;
- FIGS. 9 and 10 are schematic diagrams showing various aspects of the thin fan according to the present invention.
- FIG. 2A is a flow chart of a manufacturing method of a thin fan according to a preferred embodiment of the present invention.
- the manufacturing method of the thin fan comprises steps S 01 to S 04 .
- the step S 01 is providing a plastic material containing a plurality of metal particles.
- the plastic material comprises polyphthalamide (PPA), liquid crystalline polymer (LCP), or other kind of plastic material containing metal particles.
- the metal particles include but not limited to copper particles and/or chromium particles.
- FIG. 3 is a schematic diagram of a housing during the manufacturing process.
- the step S 02 is molding the plastic material into a housing 21 .
- a mold (not shown) is first provided, and then the plastic material is disposed into the mold.
- the size and aspect of the mold is substantially equivalent to those of the housing to be molded, and can be varied according to the practical requirements in other embodiments.
- the mold can be made in existing material, so the detailed descriptions about material are omitted.
- the plastic material can be molded into the housing 21 by injection molding or cast molding in this embodiment. During the molding, the solid plastic material is previously heated to become a fluid state, then the plastic material in fluid state is moved into the mold, and then the plastic material is processed by curing, such as by cooling or solidifying, to form the housing 21 .
- FIG. 4A is a sectional diagram of the housing during the manufacturing process
- FIG. 5 is another schematic diagram of the housing during the manufacturing process.
- the step S 03 is removing a part of a surface 211 of the housing 21 to form a circuit layout area 212 at the housing 21 .
- the surface 211 (as shown in FIG. 4A ) of the housing 21 is partially removed by laser illumination, made roughened, so as to expose some metal particles therein.
- the housing 21 in this embodiment is made by molding a single plastic material containing the metal particles 213 .
- the housing 21 a comprises a circuit layout portion 217 and a housing portion 218 connected to the circuit layout portion 217 .
- the circuit layout portion 217 is formed by molding a first plastic material containing metal particles 213
- the housing portion 218 is formed by molding a second plastic material without metal particles.
- the manufacturing process of the housing 21 a can be as below for example. First, the first plastic material containing metal particles 213 is provided, and then molded into the circuit layout portion 217 .
- the second plastic material without metal particles is provided and then molded into the housing portion 218 connected to the circuit layout portion 217 .
- the first plastic material containing metal particles and the second plastic material without metal particles can be respectively processed by injection molding and then are connected to each other. Then, a part of a surface 211 b of the circuit layout portion 217 is removed to form a circuit layout area 212 .
- the step S 04 is forming a metal layer 214 in the circuit layout area 212 .
- the metal layer 214 is formed in the circuit layout area 212 of the housing 21 by chemical plating, connecting to the metal particles 213 that are exposed to the circuit layout area 212 .
- FIG. 2B is another flow chart of the manufacturing method of the thin fan of the present invention. This embodiment further comprises the steps S 05 and S 06 .
- the step S 05 is disposing at least one electronic device 215 on the metal layer 214 .
- a plurality of electronic devices 215 are disposed on the metal layer 214 by soldering, and coupled or electrically connected to each other through the metal layer 214 .
- FIG. 6B is another aspect of the housing during the manufacturing process.
- the surface 211 b, having the circuit layout area 212 b , of the housing 21 b can be uneven, indicating that the uneven surface 211 b can be partially removed to form the circuit layout area 212 b.
- the housing 21 b is formed to have a plurality of recesses in the step S 02 , then the circuit layout area 212 b is formed at the recesses 216 and the surface 211 b thereabout by laser in the step S 03 , and the metal layer 214 b is formed in the circuit layout area 212 b in the step S 04 .
- a plurality of electronic devices 215 are disposed in the recesses 216 respectively, and electrically connected to the metal layer 214 b at the recesses 216 .
- the recesses 216 can be different in depth and size, and the depths of the recesses 216 can be designed corresponding to the heights of the electronic devices 215 respectively.
- FIG. 7A is an exploded diagram of a thin fan according to the present invention
- FIG. 7B is a sectional diagram of the thin fan shown in FIG. 7A
- FIG. 8 is an assembly diagram of the thin fan shown in FIG. 7A
- the step S 06 is assembling the housing 21 , a stator 22 , and an impeller 23 .
- the upper casing of the housing 21 is omitted in FIGS. 7A and 7B .
- FIG. 8 shows the complete thin fan 2 with the upper casing of the housing 21 .
- the housing 21 having the circuit layout area 212 and the metal layer 214 is assembled with the stator 22 and the impeller 23 to form the thin fan 2 , in which the stator 22 is disposed in the housing 21 , the impeller 23 is connected to the housing 21 through a bearing 24 . Besides, a rotor 25 is disposed to the impeller 23 , and disposed opposite to the stator 22 .
- the thin fan 2 for example, is a centrifugal fan with two air inlets 26 , but not for limiting the scope of the present invention.
- the technical features of the thin fan 2 of the present invention can be applied to other kind of centrifugal fan (such as the thin fan 3 with a single airflow inlet shown in FIG. 9 ), an axial-flow fan (the thin fan 4 as shown in FIG. 10 ), a diagonal-flow fan, or a cross-flow fan.
- the circuit layout area and the metal layer of the present invention are not merely designed for the central portion of the housing. If need be, they can be extended toward the circumference of the housing for fitting the circuit design, indicating that the lower casing of the housing is completely allowed for the circuit layout area and the metal layer. Besides, the circuit layout area and the metal layer also can be disposed to the upper casing of the housing for further use.
- the present invention also discloses a thin fan.
- the upper casing of the housing 21 is omitted in FIGS. 7A and 7B .
- FIG. 8 shows the complete thin fan 2 with the upper casing of the housing 21 .
- the thin fan 2 of this embodiment is a centrifugal fan with two airflow inlets 26 for example, but not for limiting the scope of the present invention.
- the technical features of the present invention can be applied to other kind of centrifugal fan (such as the thin fan 3 with a single airflow inlet shown in FIG. 9 ), an axial-flow fan (the thin fan 4 as shown in FIG.
- the thin fan 2 comprises a housing 21 , a stator 22 , and an impeller 23 .
- the stator 22 is disposed in the housing 21 , and the housing 21 covers the impeller 23 .
- the housing 21 comprises a surface 211 , a circuit layout area 212 , and a metal layer 214 .
- the circuit layout area 212 is formed at the surface 211 by laser, and has a plurality of metal particles (not shown), some of which are exposed to the circuit layout area 212 .
- the metal layer 214 is formed in the circuit layout area 212 by chemical plating, connecting to the exposed metal particles.
- the metal particles can comprise copper particles and/or chromium particles for example.
- the housing 21 further comprises at least one electronic device 215 , which is disposed on the metal layer 214 by soldering.
- the housing 21 of this embodiment has a plurality of electronic devices 215 , which are disposed on the metal layer 214 respectively and coupled to each other through the metal layer 214 .
- the housing 21 here has the same technical features as the housings 21 , 21 a and 21 b mentioned in the above embodiments, so the detailed descriptions are omitted.
- the thin fan 2 further comprises a bearing 24 and a rotor 25 .
- the bearing 24 is connected to the impeller 23 .
- the rotor 25 is disposed to the impeller 23 , and disposed corresponding to the stator 22 . Therefore, there is no further circuit board disposed in the housing 21 .
- a plastic material containing a plurality of metal particles is molded into a housing first, then a part of a surface of the housing is removed to form a circuit layout area at the housing, and a metal layer is formed in the circuit layout area.
- the part of the surface of the housing can be removed by laser.
- the surface can be plane or uneven.
- some metal particles are exposed to the portion, illuminated by laser, of the surface of the housing.
- the metal layer is formed in the circuit layout area by chemical plating, connecting with the exposed metal particles.
- the electronic device is disposed on the metal layer by soldering.
- the control circuit board is completely removed so that the thin fan can be reduced in size, especially in height.
- the height space is more effectively used, and the circuit layout of the fan is full of variety, which both helps the miniaturization of the fan.
Abstract
A manufacturing method of a thin fan comprises the steps of: providing a plastic material containing a plurality of metal particles; molding the plastic material into a housing; removing a part of a surface of the housing to form a circuit layout area at the housing; and forming a metal layer in the circuit layout area.
Description
- This application is a divisional application of U.S. Ser. No. 13/447,841, filed on Apr. 16, 2012, which claims priority under 35 U.S.C. §119(a) on Patent Application No(s). 100147091 filed in Taiwan, Republic of China on Dec. 19, 2011, the entire contents of which are hereby incorporated by reference.
- 1. Field of Invention
- The present invention relates to a fan and a manufacturing method thereof, and in particular, to a thin fan and a manufacturing method thereof.
- 2. Related Art
- With the rapid progress of electronic industry, the electronic devices, such as chips, in the electronic product generate more and more heat after operation. In order to dissipate the heat generated from the electronic devices, a heat sink with a fan thereon is usually equipped to the surface of the heat-generating electronic device. The cold airflow generated by the fan can acts enforced heat dissipation to the heat sink, and dissipates the waste heat generated from the heat-generating electronic devices.
-
FIG. 1A is a schematic diagram of a conventional fan, andFIG. 1B is a sectional diagram of the fan shown inFIG. 1A . For the convenience of a view and description, the upper casing of the housing is omitted inFIGS. 1A and 1B . As shown inFIGS. 1A and 1B , thefan 1 includes animpeller 11, astator 12, acircuit board 13, ahousing 14, abearing 15, and arotor 16. Thebearing 15 connects theimpeller 11 and thehousing 14, and thehousing 14 covers theimpeller 11. Thestator 12 and thecircuit board 13 are disposed in thehousing 14, and disposed opposite to each other. The control circuit of thecircuit board 13 can raise the voltage and current of the motor to make the motor magnetic excitation, and then the magnetic polarity of the motor can be converted alternately by the chip control, so that the mutual attraction and repulsion are generated between the motor and the magnet, which driving therotor 16 and theimpeller 11 to rotate. - In the current manufacturing process of the fan, a circuit board with some surface mounted devices thereon is assembled with a stator and a bearing to form an assembly, and then the assembly is equipped with the rotor and the impeller into the housing to accomplish the fabrication of the fan.
- With more and more compactly designed electronic products, the fans for heat dissipation also need to be designed compactly. Nevertheless, the height and the space need to be reserved in the fan to accommodate the circuit board and the electronic devices disposed thereon, so the fan is hard to be compacted in height and size effectively. Besides, because the design of the shape and area of the circuit board is restricted by the airflow outlet channel and mechanism, the miniaturization of the fan is further limited.
- Therefore, it is an important subject to provide a thin fan that can be reduced in height and maintain the heat-dissipating effect by more effectively using the limited height space.
- In view of the foregoing subject, an object of the present invention is to provide a thin fan that can be reduced in height and maintain the heat-dissipating effect by more effectively using the limited height space.
- To achieve the above objective, the present invention discloses a manufacturing method of a thin fan, which comprises the steps of: providing a plastic material containing a plurality of metal particles; molding the plastic material into a housing; removing a part of a surface of the housing to form a circuit layout area at the housing; and forming a metal layer in the circuit layout area.
- In one preferred embodiment, the plastic material comprises polyphthalamide (PPA) and/or liquid crystalline polymer (LCP).
- In one preferred embodiment, the metal particles comprise copper particles and/or chromium particles.
- In one preferred embodiment, the step of removing a part of a surface of the housing comprises roughening the surface so as to expose the metal particles therein.
- In one preferred embodiment, the step of removing a part of a surface of the housing comprises illuminating the surface by laser.
- In one preferred embodiment, the step of forming a metal layer in the circuit layout area comprises forming the metal layer by chemical plating.
- In one preferred embodiment, the manufacturing method further comprises: disposing at least one electronic device on the metal layer; and assembling the housing, a stator, and an impeller.
- In one preferred embodiment, the step of disposing at least one electronic device on the metal layer comprises disposing the electronic device on the metal layer by soldering.
- To achieve the above objective, the present invention discloses a thin fan, which comprises a housing, a stator, and an impeller. The housing comprises a circuit layout area and a metal layer. The circuit layout area has a plurality of metal particles, and some of the metal particles are exposed to the circuit layout area. The metal layer is disposed in the circuit layout area and connected with the exposed metal particles. The stator is disposed to the housing. The impeller is covered by the housing. There is no further circuit board disposed in the housing.
- In one preferred embodiment, the metal particles comprise copper particles and/or chromium particles.
- In one preferred embodiment, the housing further comprises at least one electronic device disposed on the metal layer.
- In one preferred embodiment, the thin fan further comprises a bearing and a rotor. The bearing is connected to the impeller. The rotor is disposed to the impeller and disposed corresponding to the stator.
- In one preferred embodiment, the housing comprises a circuit layout portion with the circuit layout portion thereon and a housing portion connected to the circuit lay out portion.
- In one preferred embodiment, the circuit layout portion contains metal particles, and the housing portion doesn't contain metal particles.
- In one preferred embodiment, the housing is formed by injection molding or cast molding.
- In one preferred embodiment, the housing further comprises a plurality of electronic devices which are disposed on the metal layer and coupled or electrically connected to each other through the metal layer.
- To achieve the above objective, the present invention discloses a manufacturing method of a thin fan, comprising steps of: providing a first plastic material containing a plurality of metal particles; molding the first plastic material into a circuit layout portion; providing a second plastic material without metal particles; molding the second plastic material into a housing portion connected to the circuit layout portion to form a housing; removing a part of a surface of the circuit layout portion to form a circuit layout area; and forming a metal layer in the circuit layout area.
- In one preferred embodiment, the step of removing a part of a surface of the circuit layout portion comprises roughening the surface so as to expose the metal particles therein.
- In one preferred embodiment, the step of forming a metal layer in the circuit layout area comprises forming the metal layer by chemical plating.
- As mentioned above, in the thin fan and the manufacturing method thereof of the present invention, a plastic material containing a plurality of metal particles is molded into a housing first, then a part of a surface of the housing is removed to form a circuit layout area at the housing, and a metal layer is formed in the circuit layout area. The part of the surface of the housing can be removed by laser. The surface can be plane or uneven. After the laser illumination, some metal particles are exposed to the portion, illuminated by laser, of the surface of the housing. Then, the metal layer is formed in the circuit layout area by chemical plating, connecting with the exposed metal particles. Finally, the electronic device is disposed on the metal layer by soldering.
- The invention will become more fully understood from the detailed description and accompanying drawings, which are given for illustration only, and thus are not limitative of the present invention, and wherein:
-
FIG. 1A is a schematic diagram of a conventional fan; -
FIG. 1B is a sectional diagram of the fan shown inFIG. 1A ; -
FIG. 2A is a flow chart of a manufacturing method of a thin fan according to a preferred embodiment of the present invention; -
FIG. 2B is another flow chart of the manufacturing method of the thin fan of the present invention; -
FIG. 3 is a schematic diagram of a housing during the manufacturing process according to the preferred embodiment of the present invention; -
FIG. 4A is a sectional diagram of the housing during the manufacturing process according to the present invention; -
FIG. 4B is a sectional diagram of another aspect of the housing during the manufacturing process according to the present invention; -
FIG. 5 is another schematic diagram of the housing during the manufacturing process according to the present invention; -
FIG. 6A is another sectional diagram of the housing during the manufacturing process according to the present invention; -
FIG. 6B is another aspect of the housing during the manufacturing process according to the present invention; -
FIG. 7A is an exploded diagram of a thin fan according to the present invention; -
FIG. 7B is a sectional diagram of the thin fan shown inFIG. 7A ; -
FIG. 8 is an assembly diagram of the thin fan shown inFIG. 7A ; and -
FIGS. 9 and 10 are schematic diagrams showing various aspects of the thin fan according to the present invention. - The present invention will be apparent from the following detailed description, which proceeds with reference to the accompanying drawings, wherein the same references relate to the same elements.
-
FIG. 2A is a flow chart of a manufacturing method of a thin fan according to a preferred embodiment of the present invention. In this embodiment, the manufacturing method of the thin fan comprises steps S01 to S04. - As shown in
FIG. 2A , the step S01 is providing a plastic material containing a plurality of metal particles. The plastic material comprises polyphthalamide (PPA), liquid crystalline polymer (LCP), or other kind of plastic material containing metal particles. Besides, the metal particles include but not limited to copper particles and/or chromium particles. - Further referring to
FIG. 3 , which is a schematic diagram of a housing during the manufacturing process. The step S02 is molding the plastic material into ahousing 21. In detail, a mold (not shown) is first provided, and then the plastic material is disposed into the mold. The size and aspect of the mold is substantially equivalent to those of the housing to be molded, and can be varied according to the practical requirements in other embodiments. The mold can be made in existing material, so the detailed descriptions about material are omitted. The plastic material can be molded into thehousing 21 by injection molding or cast molding in this embodiment. During the molding, the solid plastic material is previously heated to become a fluid state, then the plastic material in fluid state is moved into the mold, and then the plastic material is processed by curing, such as by cooling or solidifying, to form thehousing 21. -
FIG. 4A is a sectional diagram of the housing during the manufacturing process, andFIG. 5 is another schematic diagram of the housing during the manufacturing process. Referring toFIGS. 2A, 4A and 5 , the step S03 is removing a part of asurface 211 of thehousing 21 to form acircuit layout area 212 at thehousing 21. In detail, the surface 211 (as shown inFIG. 4A ) of thehousing 21 is partially removed by laser illumination, made roughened, so as to expose some metal particles therein. - Notably, the
housing 21 in this embodiment is made by molding a single plastic material containing themetal particles 213. Otherwise, as shown inFIG. 4B , which is a sectional diagram of another aspect of the housing during the manufacturing process, thehousing 21 a comprises acircuit layout portion 217 and ahousing portion 218 connected to thecircuit layout portion 217. Thecircuit layout portion 217 is formed by molding a first plastic material containingmetal particles 213, and thehousing portion 218 is formed by molding a second plastic material without metal particles. The manufacturing process of thehousing 21 a can be as below for example. First, the first plastic material containingmetal particles 213 is provided, and then molded into thecircuit layout portion 217. Then, the second plastic material without metal particles is provided and then molded into thehousing portion 218 connected to thecircuit layout portion 217. Alternatively, the first plastic material containing metal particles and the second plastic material without metal particles can be respectively processed by injection molding and then are connected to each other. Then, a part of asurface 211 b of thecircuit layout portion 217 is removed to form acircuit layout area 212. - Further referring to
FIG. 6A , which is another sectional diagram of the housing during the manufacturing process, the step S04 is forming ametal layer 214 in thecircuit layout area 212. In this embodiment, themetal layer 214 is formed in thecircuit layout area 212 of thehousing 21 by chemical plating, connecting to themetal particles 213 that are exposed to thecircuit layout area 212. -
FIG. 2B is another flow chart of the manufacturing method of the thin fan of the present invention. This embodiment further comprises the steps S05 and S06. - As shown in
FIGS. 2B and 6A , the step S05 is disposing at least oneelectronic device 215 on themetal layer 214. In this embodiment, a plurality ofelectronic devices 215 are disposed on themetal layer 214 by soldering, and coupled or electrically connected to each other through themetal layer 214. - Besides,
FIG. 6B is another aspect of the housing during the manufacturing process. As shown inFIG. 6B , thesurface 211 b, having thecircuit layout area 212 b, of thehousing 21 b can be uneven, indicating that theuneven surface 211 b can be partially removed to form thecircuit layout area 212 b. In this case, thehousing 21 b is formed to have a plurality of recesses in the step S02, then thecircuit layout area 212 b is formed at therecesses 216 and thesurface 211 b thereabout by laser in the step S03, and themetal layer 214 b is formed in thecircuit layout area 212 b in the step S04. In the step S05, a plurality ofelectronic devices 215 are disposed in therecesses 216 respectively, and electrically connected to themetal layer 214 b at therecesses 216. Therecesses 216 can be different in depth and size, and the depths of therecesses 216 can be designed corresponding to the heights of theelectronic devices 215 respectively. -
FIG. 7A is an exploded diagram of a thin fan according to the present invention,FIG. 7B is a sectional diagram of the thin fan shown inFIG. 7A , andFIG. 8 is an assembly diagram of the thin fan shown inFIG. 7A . As shown inFIGS. 2B, 7A, 7B and 8 , the step S06 is assembling thehousing 21, astator 22, and animpeller 23. To be noted, for the convenience of a view and description, the upper casing of thehousing 21 is omitted inFIGS. 7A and 7B . However,FIG. 8 shows the completethin fan 2 with the upper casing of thehousing 21. Thehousing 21 having thecircuit layout area 212 and themetal layer 214 is assembled with thestator 22 and theimpeller 23 to form thethin fan 2, in which thestator 22 is disposed in thehousing 21, theimpeller 23 is connected to thehousing 21 through abearing 24. Besides, arotor 25 is disposed to theimpeller 23, and disposed opposite to thestator 22. Thethin fan 2, for example, is a centrifugal fan with twoair inlets 26, but not for limiting the scope of the present invention. The technical features of thethin fan 2 of the present invention can be applied to other kind of centrifugal fan (such as the thin fan 3 with a single airflow inlet shown inFIG. 9 ), an axial-flow fan (thethin fan 4 as shown inFIG. 10 ), a diagonal-flow fan, or a cross-flow fan. - Notably, the circuit layout area and the metal layer of the present invention are not merely designed for the central portion of the housing. If need be, they can be extended toward the circumference of the housing for fitting the circuit design, indicating that the lower casing of the housing is completely allowed for the circuit layout area and the metal layer. Besides, the circuit layout area and the metal layer also can be disposed to the upper casing of the housing for further use.
- Referring to
FIGS. 7A, 7B and 8 , the present invention also discloses a thin fan. For the convenience of a view and description, the upper casing of thehousing 21 is omitted inFIGS. 7A and 7B . However,FIG. 8 shows the completethin fan 2 with the upper casing of thehousing 21. Thethin fan 2 of this embodiment is a centrifugal fan with twoairflow inlets 26 for example, but not for limiting the scope of the present invention. The technical features of the present invention can be applied to other kind of centrifugal fan (such as the thin fan 3 with a single airflow inlet shown inFIG. 9 ), an axial-flow fan (thethin fan 4 as shown inFIG. 10 ), a diagonal-flow fan, or a cross-flow fan. Thethin fan 2 comprises ahousing 21, astator 22, and animpeller 23. Thestator 22 is disposed in thehousing 21, and thehousing 21 covers theimpeller 23. - The
housing 21 comprises asurface 211, acircuit layout area 212, and ametal layer 214. Thecircuit layout area 212 is formed at thesurface 211 by laser, and has a plurality of metal particles (not shown), some of which are exposed to thecircuit layout area 212. Themetal layer 214 is formed in thecircuit layout area 212 by chemical plating, connecting to the exposed metal particles. The metal particles can comprise copper particles and/or chromium particles for example. Thehousing 21 further comprises at least oneelectronic device 215, which is disposed on themetal layer 214 by soldering. Thehousing 21 of this embodiment has a plurality ofelectronic devices 215, which are disposed on themetal layer 214 respectively and coupled to each other through themetal layer 214. Thehousing 21 here has the same technical features as thehousings - The
thin fan 2 further comprises abearing 24 and arotor 25. Thebearing 24 is connected to theimpeller 23. Therotor 25 is disposed to theimpeller 23, and disposed corresponding to thestator 22. Therefore, there is no further circuit board disposed in thehousing 21. - In summary, in the thin fan and the manufacturing method thereof of the present invention, a plastic material containing a plurality of metal particles is molded into a housing first, then a part of a surface of the housing is removed to form a circuit layout area at the housing, and a metal layer is formed in the circuit layout area. The part of the surface of the housing can be removed by laser. The surface can be plane or uneven. After the laser illumination, some metal particles are exposed to the portion, illuminated by laser, of the surface of the housing. Then, the metal layer is formed in the circuit layout area by chemical plating, connecting with the exposed metal particles. Finally, the electronic device is disposed on the metal layer by soldering.
- Compared with the prior art, in the thin fan and the manufacturing method according to the present invention, the control circuit board is completely removed so that the thin fan can be reduced in size, especially in height. Besides, in the present invention the height space is more effectively used, and the circuit layout of the fan is full of variety, which both helps the miniaturization of the fan.
- Although the invention has been described with reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternative embodiments, will be apparent to persons skilled in the art. It is, therefore, contemplated that the appended claims will cover all modifications that fall within the true scope of the invention.
Claims (11)
1. A manufacturing method of a thin fan, comprising the steps of:
providing a plastic material containing a plurality of metal particles;
molding the plastic material into a housing;
removing a part of a surface of the housing to form a circuit layout area at the housing; and
forming a metal layer in the circuit layout area.
2. The manufacturing method of claim 1 , wherein the plastic material comprises polyphthalamide (PPA) and/or liquid crystalline polymer (LCP), and the metal particles comprise copper particles and/or chromium particles.
3. The manufacturing method of claim 1 , wherein the step of removing a part of a surface of the housing comprises roughening the surface so as to expose the metal particles therein.
4. The manufacturing method of claim 1 , wherein the step of removing a part of a surface of the housing comprises illuminating the surface by laser.
5. The manufacturing method of claim 1 , wherein the step of forming a metal layer in the circuit layout area comprises forming the metal layer by chemical plating.
6. The manufacturing method of claim 1 , further comprising:
disposing at least one electronic device on the metal layer; and
assembling the housing, a stator, and an impeller.
7. The manufacturing method of claim 1 , wherein the step of disposing at least one electronic device on the metal layer comprises disposing the electronic device on the metal layer by soldering.
8. A manufacturing method of a thin fan, comprising steps of:
providing a first plastic material containing a plurality of metal particles;
molding the first plastic material into a circuit layout portion;
providing a second plastic material without metal particles;
molding the second plastic material into a housing portion connected to the circuit layout portion to form a housing;
removing a part of a surface of the circuit layout portion to form a circuit layout area; and
forming a metal layer in the circuit layout area.
9. The manufacturing method of claim 8 , wherein the step of removing a part of a surface of the circuit layout portion comprises roughening the surface so as to expose the metal particles therein.
10. The manufacturing method of claim 8 , wherein the step of forming a metal layer in the circuit layout area comprises forming the metal layer by chemical plating.
11. The manufacturing method of claim 8 , further comprising:
disposing at least one electronic device on the metal layer.
Priority Applications (1)
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US15/018,203 US20160153468A1 (en) | 2011-12-19 | 2016-02-08 | Thin fan and manufacturing method thereof |
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TW100147091 | 2011-12-19 | ||
TW100147091A TWI480469B (en) | 2011-12-19 | 2011-12-19 | Thin fan and manufacturing method thereof |
US13/447,841 US9291168B2 (en) | 2011-12-19 | 2012-04-16 | Thin fan and manufacturing method thereof |
US15/018,203 US20160153468A1 (en) | 2011-12-19 | 2016-02-08 | Thin fan and manufacturing method thereof |
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US13/447,841 Division US9291168B2 (en) | 2011-12-19 | 2012-04-16 | Thin fan and manufacturing method thereof |
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US20160153468A1 true US20160153468A1 (en) | 2016-06-02 |
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US13/447,841 Active 2034-11-09 US9291168B2 (en) | 2011-12-19 | 2012-04-16 | Thin fan and manufacturing method thereof |
US15/018,203 Abandoned US20160153468A1 (en) | 2011-12-19 | 2016-02-08 | Thin fan and manufacturing method thereof |
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US13/447,841 Active 2034-11-09 US9291168B2 (en) | 2011-12-19 | 2012-04-16 | Thin fan and manufacturing method thereof |
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TW (1) | TWI480469B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110034082A (en) * | 2018-01-12 | 2019-07-19 | 创意电子股份有限公司 | Electronic device with active heat dissipation |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN203604227U (en) * | 2013-12-02 | 2014-05-21 | 讯豪电子(昆山)有限公司 | Fan structure |
CN104948476B (en) * | 2014-03-31 | 2020-06-02 | 台达电子工业股份有限公司 | Thin fan, electronic system and manufacturing method of thin fan |
DE102015003774A1 (en) * | 2015-03-24 | 2016-09-29 | Rohde & Schwarz Sit Gmbh | Protection arrangement for an electronic circuit and method for its production |
CN114076112A (en) * | 2020-08-21 | 2022-02-22 | 亚浩电子五金塑胶(惠州)有限公司 | Luminous fan and heat dissipation device |
JP2022045045A (en) * | 2020-09-08 | 2022-03-18 | ミネベアミツミ株式会社 | Centrifugal fan |
CN114412808A (en) * | 2020-10-28 | 2022-04-29 | 亚浩电子五金塑胶(惠州)有限公司 | Heat sink device |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6309190B1 (en) * | 2000-01-28 | 2001-10-30 | Yen Sun Technic Industrial Corporation | Shaft supporting structure for an axial fan |
US20020017806A1 (en) * | 2000-02-14 | 2002-02-14 | Satoru Funakoshi | Vehicle front-end panel made of thermoplastic resin |
US20040095029A1 (en) * | 2001-07-31 | 2004-05-20 | Ewert Andreas | Multifunctional housing piece for an electrical motor |
US20050212162A1 (en) * | 2001-02-15 | 2005-09-29 | Integral Technologies, Inc. | Low cost housings for vehicle mechanical devices and systems manufactured from conductive loaded resin-based materials |
US6995205B2 (en) * | 2001-09-27 | 2006-02-07 | Nippon Kagaku Yakin Co., Ltd. | Resin composition with high thermal conductivity and method of producing the same |
US7044721B2 (en) * | 2003-03-31 | 2006-05-16 | Sunonwealth Electric Machine Industry Co., Ltd. | Fan casing with built-in motor poles |
US20070065639A1 (en) * | 2005-09-16 | 2007-03-22 | Kabushiki Kaisha Toshiba | Circuit board and manufacturing method of the circuit board |
US7781927B2 (en) * | 2006-10-13 | 2010-08-24 | Lg Innotek Co., Ltd. | Vibration motor |
US20110097025A1 (en) * | 2008-07-08 | 2011-04-28 | Ntn Corporation | Fluid dynamic bearing device |
US8680672B2 (en) * | 2011-08-23 | 2014-03-25 | Amtek Semiconductors Co., Ltd. | Semiconductor package with sleeve member and fan wheel for heat dissipation |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3255133B2 (en) * | 1999-01-07 | 2002-02-12 | 松下電器産業株式会社 | DC brushless fan |
US6486413B1 (en) * | 1999-11-17 | 2002-11-26 | Ebara Corporation | Substrate coated with a conductive layer and manufacturing method thereof |
US8268222B2 (en) * | 2001-02-15 | 2012-09-18 | Integral Technologies, Inc. | Methods of making electrical motor components from conductive loaded resin-based materials |
CN1621696A (en) * | 2003-11-29 | 2005-06-01 | 鸿富锦精密工业(深圳)有限公司 | Manufacturing method of thermal fan |
CN100383404C (en) * | 2004-07-16 | 2008-04-23 | 鸿富锦精密工业(深圳)有限公司 | Fan frame |
JP2007049891A (en) * | 2005-07-11 | 2007-02-22 | Nippon Densan Corp | Method of manufacturing stator and motor |
JP4823694B2 (en) * | 2006-01-13 | 2011-11-24 | 日本電産コパル株式会社 | Small fan motor |
US7345884B2 (en) * | 2006-03-14 | 2008-03-18 | Sunonwealth Electic Machine Industry Co., Ltd. | Heat-dissipating fan |
US8206104B2 (en) * | 2007-12-04 | 2012-06-26 | Sunonwealth Electric Machine Industry Co., Ltd. | Frame structure for fan |
-
2011
- 2011-12-19 TW TW100147091A patent/TWI480469B/en active
-
2012
- 2012-04-16 US US13/447,841 patent/US9291168B2/en active Active
-
2016
- 2016-02-08 US US15/018,203 patent/US20160153468A1/en not_active Abandoned
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6309190B1 (en) * | 2000-01-28 | 2001-10-30 | Yen Sun Technic Industrial Corporation | Shaft supporting structure for an axial fan |
US20020017806A1 (en) * | 2000-02-14 | 2002-02-14 | Satoru Funakoshi | Vehicle front-end panel made of thermoplastic resin |
US20050212162A1 (en) * | 2001-02-15 | 2005-09-29 | Integral Technologies, Inc. | Low cost housings for vehicle mechanical devices and systems manufactured from conductive loaded resin-based materials |
US20040095029A1 (en) * | 2001-07-31 | 2004-05-20 | Ewert Andreas | Multifunctional housing piece for an electrical motor |
US6995205B2 (en) * | 2001-09-27 | 2006-02-07 | Nippon Kagaku Yakin Co., Ltd. | Resin composition with high thermal conductivity and method of producing the same |
US7044721B2 (en) * | 2003-03-31 | 2006-05-16 | Sunonwealth Electric Machine Industry Co., Ltd. | Fan casing with built-in motor poles |
US20070065639A1 (en) * | 2005-09-16 | 2007-03-22 | Kabushiki Kaisha Toshiba | Circuit board and manufacturing method of the circuit board |
US7781927B2 (en) * | 2006-10-13 | 2010-08-24 | Lg Innotek Co., Ltd. | Vibration motor |
US7977834B2 (en) * | 2006-10-13 | 2011-07-12 | Lg Innotek Co., Ltd. | Vibration motor |
US20110097025A1 (en) * | 2008-07-08 | 2011-04-28 | Ntn Corporation | Fluid dynamic bearing device |
US8680672B2 (en) * | 2011-08-23 | 2014-03-25 | Amtek Semiconductors Co., Ltd. | Semiconductor package with sleeve member and fan wheel for heat dissipation |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110034082A (en) * | 2018-01-12 | 2019-07-19 | 创意电子股份有限公司 | Electronic device with active heat dissipation |
Also Published As
Publication number | Publication date |
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US20130156616A1 (en) | 2013-06-20 |
TW201326560A (en) | 2013-07-01 |
US9291168B2 (en) | 2016-03-22 |
TWI480469B (en) | 2015-04-11 |
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