Patents by Inventor Shun-Chen Chang
Shun-Chen Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9618221Abstract: A ventilation device includes a passage unit (100), a wind turbine (200) and a fan (300). The wind turbine (200) is provided above the passage unit (100), and the fan (300) is provided within the wind turbine (200). The rotation of the wind turbine (200) drives the fan (300) to rotate, so that the air within the passage (100) is exhausted by the fan.Type: GrantFiled: May 7, 2011Date of Patent: April 11, 2017Assignee: Delta Electronics, Inc.Inventor: Shun-Chen Chang
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Patent number: 9574569Abstract: A recirculation fan includes a casing, a covering member, a wind-guiding device, a passive impeller, and an active impeller. The covering member is coupled with the casing to define an accommodation space. The wind-guiding device is disposed on the covering member, and includes a wind-guiding cover and a magnetoresistive structure. The magnetoresistive structure is disposed on the covering member and the wind-guiding cover. The passive impeller is disposed within the accommodation space. The active impeller is disposed within the accommodation space and located beside the passive impeller for generating a wind to drive rotation of the passive impeller and the wind-guiding cover. In response to a magnetic torque resulted from a magnetic vortex of the magnetoresistive structure, a rotating speed of the wind-guiding cover is slowed down.Type: GrantFiled: May 24, 2012Date of Patent: February 21, 2017Assignee: DELTA ELECTRONICS, INC.Inventors: Shun-Chen Chang, Wen-Bin Liu, Kun-Fu Chuang
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Patent number: 9447789Abstract: A fan assembly including a housing, a supporting member, a driving device and a passive impeller. The supporting member is disposed in the housing, and the driving device is disposed on the supporting member. The passive impeller includes a first hub and a plurality of first passive blades encircling the first hub. The active impeller includes a second hub and a plurality of active blades encircling the second hub and actuated to rotate by the driving device. In an axial direction, the first hub is disposed between the driving device and the second hub, and through rotation of the active impeller, airflow is produced which actuates the passive impeller to rotate.Type: GrantFiled: May 25, 2012Date of Patent: September 20, 2016Assignee: DELTA ELECTRONICS, INC.Inventors: Shun-Chen Chang, Bo-Chun Chen
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Patent number: 9429168Abstract: A fan includes a frame and an impeller. The frame includes a main body, a plurality of guiding elements and a motor base. The main body has an airflow inlet and an airflow outlet. The guiding elements are disposed in the main body and located at the airflow outlet, wherein each of the guiding elements includes an inclined part and an axial extended part, and the inclined par meets the axial extended part at an angle. The motor base connects to the main body. The impeller is disposed on the motor base for providing an airflow, wherein the guiding elements guide the airflow away from the fan.Type: GrantFiled: April 25, 2008Date of Patent: August 30, 2016Assignee: DELTA ELECTRONICS, INC.Inventors: Chia-Ming Hsu, Shun-Chen Chang
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Patent number: 9334868Abstract: A fan includes a motor, an impeller and a heat dissipating structure. The impeller includes a hub and a plurality of first blades. The hub receives the motor, and the hub comprises at least a heat dissipating hole. The first blades are disposed around the hub. The heat dissipating structure is disposed outside the hub. The heat dissipating structure includes a baffle and at least a second blade extending from the baffle and disposed corresponding to the heat dissipating hole.Type: GrantFiled: November 7, 2013Date of Patent: May 10, 2016Assignee: DELTA ELECTRONICS, INC.Inventors: Shih-Han Huang, Shun-Chen Chang
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Patent number: 9267508Abstract: A fan assembly includes a bushing, a stator, a first bearing, and a rotor. The stator surrounds the bushing, and includes at least one hook. The hook extends into the bushing. The first bearing is disposed in the bushing and presses against the hook. The rotor is pivotally connected to the first bearing.Type: GrantFiled: September 11, 2012Date of Patent: February 23, 2016Assignee: DELTA ELECTRONICS, INC.Inventors: Shun-Chen Chang, Kuan-Ying Chen
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Publication number: 20160017895Abstract: A fan assembly and a fan frame thereof are disclosed. The fan assembly includes a fan frame and an impeller disposed in the fan frame. The fan frame has an air inlet end and an air outlet end, and includes a sidewall, a top portion and a bottom portion. The top portion is disposed close to the air inlet end and connected to one end of the sidewall. The bottom portion is disposed close to the air outlet end and connected to the other end of the sidewall. The bottom portion has at least one silencing structure.Type: ApplicationFiled: March 30, 2015Publication date: January 21, 2016Inventors: Shun-Chen CHANG, Chao-Fu YANG
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Patent number: 9169850Abstract: A fan includes a fan frame, a motor and an impeller. The motor is disposed in the frame. The impeller is connected with the motor and driven by the motor. The impeller includes a hub, an inner blade and an outer blade. The hub has a first surface facing the motor and a second surface facing away from the motor. The inner blade is disposed on the first surface, and the outer blade is disposed on the second surface.Type: GrantFiled: February 28, 2013Date of Patent: October 27, 2015Assignee: DELTA ELECTRONICS, INC.Inventors: Shun-Chen Chang, Bo-Chun Chen, Chao-Yu Chen
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Patent number: 9065320Abstract: A passive drive motor is disclosed. A stator assembly is connected to a base. A rotating shaft is rotatably connected to the base. A rotor assembly is connected to the rotating shaft. The rotor assembly interacts with the stator assembly to rotate the rotating shaft. A first metal disk is rotated by the rotating shaft. At least one first magnet pair is disposed on the first metal disk. A second metal disk opposes the first magnet pair. When the rotating shaft rotates to drive the first metal disk to rotate, the first magnet pair disposed on the first metal disk magnetically interacts with the second metal disk, driving the second metal disk to rotate with respect to the first metal disk.Type: GrantFiled: September 6, 2012Date of Patent: June 23, 2015Assignee: DELTA ELECTRONICS, INC.Inventors: Jia-Yuan Liang, Kun-Fu Chuang, Shun-Chen Chang
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Patent number: 9051939Abstract: A recirculation fan includes a casing, a covering member, and a fan assembly. The casing has a base. The covering member is coupled with the casing to define an accommodation space. The fan assembly is disposed within the accommodation space, and includes a first impeller, a second impeller, a motor, and a plurality of magnetic elements. The second impeller is located beside the first impeller. The motor is fixed on the base of the casing and connected with the first impeller for driving rotation of the first impeller. The magnetic elements are arranged between the first impeller and the second impeller. A wind force generated by the first impeller and a magnetic torque resulted from a magnetic vortex of the magnetic elements cause contactless rotation of the second impeller.Type: GrantFiled: May 24, 2012Date of Patent: June 9, 2015Assignee: DELTA ELECTRONICS, INC.Inventors: Shun-Chen Chang, Wen-Bin Liu
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Patent number: 8992174Abstract: A fan assembly includes a channel structure and a centrifugal fan. The channel structure includes a housing and at least a slit. The housing has an accommodating space and a flow channel adjacent to each other. The slit is extended along the flow channel. The flow channel is communicated with the outside of the housing via the slit. The centrifugal fan is disposed in the accommodating space. The centrifugal fan draws air along an axial direction and generates an airflow. The airflow flows into the flow channel along a radial direction, and flows out to the outside of the housing via the slit.Type: GrantFiled: August 9, 2011Date of Patent: March 31, 2015Assignee: Delta Electronics, Inc.Inventor: Shun-Chen Chang
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Publication number: 20150044077Abstract: A fan includes a motor, an impeller and a heat dissipating structure. The impeller includes a hub and a plurality of first blades. The hub receives the motor, and the hub comprises at least a heat dissipating hole. The first blades are disposed around the hub. The heat dissipating structure is disposed outside the hub. The heat dissipating structure includes a baffle and at least a second blade extending from the baffle and disposed corresponding to the heat dissipating hole.Type: ApplicationFiled: November 7, 2013Publication date: February 12, 2015Applicant: DELTA ELECTRONICS, INC.Inventors: Shih-Han HUANG, Shun-Chen CHANG
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Publication number: 20150044076Abstract: A fan includes a motor, an impeller and a heat-dissipating structure. The motor includes a stator magnet assembly, a frame, a first circuit board, and a cover. The frame supports the stator magnet assembly. The frame and the stator magnet assembly define a first accommodating space, and the first circuit board is disposed in the first accommodating space. The cover covers the first circuit board. The motor drives the impeller and the impeller includes a hub and a plurality of first blades. The hub has at least a heat-dissipating hole. The first blades are disposed around the hub, and the heat-dissipating structure is disposed at the outer side of the hub. The heat-dissipating structure has a baffle and at least a second blade extended from the baffle and located corresponding to the heat-dissipating hole.Type: ApplicationFiled: July 9, 2014Publication date: February 12, 2015Inventors: Shih-Han HUANG, Shun-Chen CHANG
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Patent number: 8926278Abstract: A fan has a fan, an impeller and a motor. The impeller is disposed in the fan frame, and the motor is disposed in the fan frame for driving the impeller. The fan frame has a housing, a base and at least one connecting element. The housing has an inlet and an outlet, and the base is disposed in the housing and at the outlet. The connecting element is disposed between the housing and the base. The base has a first airflow guiding structure disposed on the circumference of the base. The housing has a second airflow guiding structure disposed on the inner circumference thereof and adjacent to the outlet. The first airflow guiding structure and the second airflow guiding structure are correspondingly disposed.Type: GrantFiled: December 26, 2007Date of Patent: January 6, 2015Assignee: Delta Electronics, Inc.Inventors: Shun-Chen Chang, Shuo-Shiu Hsu
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Publication number: 20140356149Abstract: A fan includes an impeller and a frame. The frame is used for accommodating the impeller. The frame includes a plurality of static blade groups. Each of the static blade groups has a plurality of static blades. Moreover, at least one first static blade of a first static blade group and at least one first static blade of a second static blade group are symmetric with respect to a central axis of the frame.Type: ApplicationFiled: September 5, 2013Publication date: December 4, 2014Applicant: Delta Electronics, Inc.Inventors: Shun-Chen Chang, Bo-Chun Chen, Shih-Han Huang, Chao-Yu Chen
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Patent number: 8807969Abstract: A fan assembly includes a housing, a first frame, a second frame, at least one driving device, a supporting device, an active impeller and a passive impeller. The housing has an air-flowing channel, and the first frame and second frame are disposed at opposite sites of the air-flowing channel. The driving device is disposed on the first frame and actuates the active impeller to rotate. The supporting device is disposed on the second frame and has the passive impeller thereon. The passive impeller is propelled by the airflow generated by the active impeller.Type: GrantFiled: October 27, 2011Date of Patent: August 19, 2014Assignee: Delta Electronics, Inc.Inventors: Shun-Chen Chang, Chia-Ming Hsu, Bo-Chun Chen
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Patent number: 8727717Abstract: A serial fan module includes a first fan, a second fan and a plurality of guide elements. The first fan has a first frame body and a first impeller disposed within the first frame body. The second fan has a second frame body and a second impeller disposed within the second frame body. The guide elements are disposed between the first impeller and the second impeller, wherein the guide elements guide airflow from the first fan to the second fan. Each of the guide elements has an axial extended part and an inclined part and the inclined part meets the axial extended part at a camber angle. Each of the inclined part has an inner edge toward the first impeller and each of the axial extended part has an outer edge toward the second impeller.Type: GrantFiled: April 25, 2008Date of Patent: May 20, 2014Assignee: Delta Electronics, Inc.Inventors: Chia-Ming Hsu, Shun-Chen Chang
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Patent number: 8721302Abstract: A fan assembly includes an active fan, a supporting base and a passive element. The active fan includes a first impeller and a motor. The passive element is driven to rotate by an airflow from the active fan. The passive element includes a impeller and at least one load. The load is connected to the impeller.Type: GrantFiled: October 20, 2010Date of Patent: May 13, 2014Assignee: Delta Electronics, Inc.Inventors: Shun-Chen Chang, Chia-Ming Hsu, Chieh-Cheng Liu
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Patent number: 8702386Abstract: A fan includes a frame and an impeller. The impeller is disposed in the frame and the impeller has a plurality of blades. Each blade has a wing part and a flap part, and the wing part and the flap part form a predetermined angle. A blade is also disclosed.Type: GrantFiled: July 27, 2006Date of Patent: April 22, 2014Assignee: Delta Electronics, Inc.Inventors: Sung-Wei Lee, Shun-Chen Chang, Wen-Shi Huang
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Publication number: 20140094109Abstract: A ventilation device includes a passage unit (100), a wind turbine (200) and a fan (300). The wind turbine (200) is provided above the passage unit (100), and the fan (300) is provided within the wind turbine (200). The rotation of the wind turbine (200) drives the fan (300) to rotate, so that the air within the passage (100) is exhausted by the fan.Type: ApplicationFiled: May 7, 2011Publication date: April 3, 2014Applicant: DELTA ELECTRONICS, INC.Inventor: Shun-Chen Chang