US20110110774A1 - Blower Fan - Google Patents
Blower Fan Download PDFInfo
- Publication number
- US20110110774A1 US20110110774A1 US12/613,709 US61370909A US2011110774A1 US 20110110774 A1 US20110110774 A1 US 20110110774A1 US 61370909 A US61370909 A US 61370909A US 2011110774 A1 US2011110774 A1 US 2011110774A1
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- US
- United States
- Prior art keywords
- air guiding
- air
- blower fan
- housing
- compartment
- 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
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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
- F04D29/40—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
- F04D29/4246—Fan casings comprising more than one outlet
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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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
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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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
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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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20172—Fan mounting or fan specifications
Definitions
- the present invention relates to a blower fan and, more particularly, to a blower fan including air guiding tubes.
- blower fans include a housing having an axial air inlet and a side air outlet.
- An impeller is rotatably mounted in the housing for drawing in air currents that are concentrated before exiting the side air outlet to a heat source.
- the blower fans In use, the blower fans must be mounted adjacent the heat source with the side air outlet aligned with the heat source to assure temperature lowering of the heat source.
- the conventional blower fans can only perform heat dissipation for the heat sources adjacent the side air outlet.
- a solution to this is increasing the number of the blower fans that leads to inevitable increase in the costs.
- the housing of the blower fan is provided with several air outlets or an external air guiding tube for dissipating heat generated by heat sources in different locations.
- FIG. 1 shows a blower fan 7 including a substrate 71 on which an impeller unit 72 and a lateral wall 73 are provided.
- a pressure accumulating channel 74 is formed on an inner side of the lateral wall 73 and includes two ends each having a radial air outlet 75 .
- the substrate 71 defines an axial air inlet 76 perpendicular to the radial air outlets 75 .
- the impeller unit 72 draws in air currents via the axial air inlet 76 .
- the air currents exit the radial air outlets 75 under the centrifugal force created during operation of the impeller unit 72 to dissipate heat generated by heat sources in different locations.
- An example of such a blower fan 7 is disclosed in Taiwan Patent Publication No. 516668. However, the heat sources can not always locate adjacent the radial air outlets 75 . Thus, the blower fan 7 provides limited utility.
- FIG. 2 shows a blower fan 8 including a side air outlet 81 and an air guiding tube 82 coupled to the side air outlet 81 .
- the air guiding tube 82 can be coupled to a heat source 84 via a heat pad 83 .
- the blower fan 8 not only dissipates heat by the side air outlet 81 but also generates air currents that are guided by the air guiding tube 82 to the heat source 84 distant to the blower fan 8 .
- the blower fan 8 generally includes a pressure accumulating section for increasing the wind pressure of the air currents generated by the blower fan 8 .
- An example of such a blower fan 8 is disclosed in Taiwan Patent Publication No. 200517816.
- an end of the air guiding tube 82 coupled to the side air outlet 81 of the blower fan is not in the pressure accumulating section, such that the amount of air provided through the air guiding tube 82 is limited, failing to effectively lower the temperature of the heat source 84 and having unsatisfactory heat dissipating effect.
- FIG. 3 discloses a blower fan 9 including a side air outlet 92 .
- An air guiding tube 91 includes a first end 911 coupled to blower fan 9 and a second end 912 extending toward a heat source 93 .
- the side air outlet 92 of the blower fan 9 can be utilized to dissipate heat generated by another heat source.
- An example of such a blower fan 9 is disclosed in Taiwan Patent Publication No. 200528011.
- the first end 911 of the air guiding tube 91 is not in the pressure accumulating section of the blower fan 9 .
- the heat generated by the heat source 93 must flow from the second end 912 to the first end 911 , such that the heat dissipating effect provided by the air guiding tube 91 is still unsatisfactory.
- An objective of the present invention is to provide a blower fan with increased air output.
- Another objective of the present invention is to provide a blower fan capable of dissipating heat of heat sources in different locations.
- a blower fan including a housing having a lateral wall defining a compartment.
- the housing further includes an air inlet and an air outlet both in communication with the compartment.
- the air outlet includes opposite first and second end edges.
- the housing defines a first plane passing the first and second end edges.
- An impeller is rotatably mounted in the compartment of the housing.
- the impeller includes a hub and a plurality of blades mounted on an outer periphery of the hub.
- the impeller defines a second plane including a center of the hub. The second plane is parallel to and spaced from the first plane.
- At least one air guiding tube includes an inlet end and an outlet end.
- the compartment of the housing includes an air outlet section and a pressure accumulating section on opposite sides of the second plane.
- the air outlet section is located between the first and second planes.
- the lateral wall of the housing includes at least one air guiding hole located in the pressure accumulating section. The inlet end of the at last one air guiding tube is coupled to the at least one air guiding hole.
- FIG. 1 shows an elevational view of a conventional blower fan.
- FIG. 2 shows an exploded, perspective view of another conventional blower fan.
- FIG. 3 shows an exploded, perspective view of a further conventional blower fan.
- FIG. 4 shows an exploded, perspective view of a blower fan of a first embodiment according to the preferred teachings of the present invention.
- FIG. 5 shows a cross sectional view of the blower fan of FIG. 4 .
- FIG. 6 shows a cross sectional view of a blower fan of a second embodiment according to the preferred teachings of the present invention.
- FIG. 7 shows a cross sectional view of a blower fan of a third embodiment according to the preferred teachings of the present invention.
- FIG. 8 shows a cross sectional view of a lower fan of a fourth embodiment according to the preferred teachings of the present invention.
- a blower fan of a first embodiment according to the preferred teachings of the present invention is shown in FIGS. 4 and 5 and generally includes a housing 1 , an impeller 2 , and an air guiding tube 3 .
- the housing 1 can be mounted in a desired location of an electronic product, such as a side of a main board inside a computer.
- the impeller 2 is rotatably mounted in the housing 1 to generate enough amount of air for heat dissipating purposes.
- the air guiding tube 3 is coupled to the housing 1 for dissipating heat generated by heat sources 4 in different locations of the electronic product.
- the housing 1 includes a lateral wall 11 defining a compartment 111 .
- the housing 1 further includes an air inlet 12 and an air outlet 13 that are in communication with the compartment 111 .
- the air outlet 13 includes opposite first and second end edges 131 and 132 .
- the housing 1 defines a first plane P 1 passing the first and second end edges 131 and 132 .
- a cover 14 is mounted to the lateral wall 11 of the housing 1 and includes an opening 141 aligned with the air inlet 12 . Air currents generated by the impeller 2 can flow through the opening 141 and the air inlet 12 into the compartment 111 of the housing 1 .
- the housing 1 can include at least one auxiliary air inlet preferably aligned with the air inlet 12 .
- the impeller 2 is rotatably mounted in the compartment 111 and includes a hub 21 and a plurality of blades 22 .
- the impeller 2 defines a second plane P 2 including a center of the hub 21 .
- the second plane P 2 is parallel to and spaced from the first plane P 1 .
- the blades 22 are mounted to an outer periphery of the hub 21 for driving the air currents to the air outlet 13 and the air guiding tube 3 .
- the compartment 111 is divided into an air outlet section 111 a and a pressure accumulating section 111 b by defining the first and second planes P 1 and P 2 .
- the air outlet section 111 a is located between the first and second planes P 1 and P 2 .
- the pressure accumulating section 111 b and the air outlet section 111 a are located on opposite sides of the second plane P 2 .
- the lateral wall 11 includes an air guiding hole 15 in the pressure accumulating section 111 b for coupling the air guiding tube 3 .
- the air guiding tube 3 includes an inlet end 31 and an outlet end 32 .
- the inlet end 31 is coupled to the air guiding hole 15 of the housing 1 and in communication with the compartment 111 . Namely, the inlet end 31 is located in the pressure accumulating section 111 b .
- the outlet end 32 extends away from the housing 1 for guiding the air currents to the heat source 4 .
- the air outlet 13 faces a heat source 4 , and the length of the air guiding tube 3 allows it to extend to another heat source 4 with the outlet end 32 of the air guiding tube 3 facing the other heat source 4 .
- the impeller 2 draws in air currents, and the centrifugal force created during operation of the impeller 2 drives the air currents to the heat sources 4 via the air guiding tube 3 and the air outlet 13 .
- the blower fan according to the teachings of the present invention can dissipate heat generated by heat sources 4 in different locations.
- the inlet end 31 of the air guiding tube 3 is in the pressure accumulating section 111 b , the wind pressure of the air currents drawn in by the impeller 2 via the air inlet 12 can be accumulated in the pressure accumulating section 111 b to provide a larger wind pressure.
- the air currents driven by the blades 22 can flow more easily along an inner face of the lateral wall 11 of the housing 1 to the heat source 4 after passing through the air guiding tube 3 .
- the air guiding tube 3 provides more amount of air by the larger wind pressure to dissipate the heat generated by the heat source 4 , enhancing the overall heat dissipating effect.
- an inner wall S 1 of the air guiding tube 3 is preferably tangent to the inner face S 2 of the lateral wall 11 in the pressure accumulating section 111 b .
- the air currents driven by the blades 22 flowing along the inner wall S 2 of the lateral wall 11 of the housing 1 encounters less resistance, so that the air guiding tube 3 can provide more amount of air for heat dissipating purposes.
- the housing 1 of the blower fan according to the teachings of the present invention can include one or more air guiding holes 15 cooperating one or more air guiding tubes 3 according to needs. Furthermore, the blower fan according to the teachings of the present invention can utilize various types of the air guiding tubes 3 .
- the lateral wall 11 of the housing 1 includes an air guiding hole 15 located in the pressure accumulating section 111 b .
- the air guiding tube 3 further includes a plurality of branch tubes 33 between the inlet end 31 and the outlet end 32 .
- the branch tubes 33 extend to additional heat sources 4 .
- the air guiding tube 3 can proceed with heat dissipation for more heat sources 4 .
- the lateral wall 11 of the housing 1 includes an air guiding hole 15 located in the pressure accumulating section 111 b . Furthermore, there are two air guiding tubes 3 provided for two heat sources 4 . The inlet end 31 of each air guiding tube 3 is coupled to the air guiding hole 15 . The outlet end 32 of each air guiding tube 3 extends toward one of the heat sources 4 . Thus, the air guiding tubes 3 can proceed with heat dissipation for the heat sources 4 in different locations.
- the air guiding tubes 3 can be integrally formed with each other as a single continuous monolithic member as desired.
- the lateral wall 11 of the housing 1 includes two air guiding holes 15 located in the pressure accumulating section 111 b . Furthermore, there are two air guiding tubes 3 provide for a plurality of heat sources 4 . The inlet end 31 of each air guiding tube 3 is coupled to one of the air guiding holes 15 . Each air guiding tube 3 includes one or more branch tubes 33 between the inlet end 31 and the outlet end 32 . Thus, the air guiding tubes 3 can proceed with heat dissipation for many heat sources 4 , providing enhanced utility.
- the air currents driven by the impeller 2 can flow through the air guiding tubes 3 to the heat sources 4 under less resistance, providing excellent heat dissipation and enhancing the heat dissipating effect.
- the air guiding tubes 3 can provide more amount of air for dissipating heat generated by a plurality of heat sources 4 while providing air output via the air outlet 13 , of the housing 1 . Thus, the amount of outputted air is increased.
- the blower fan according to the teachings of the present invention can proceed heat dissipation for a heat source 4 via the air outlet 13 of the housing 1 as well as for a plurality of heat sources 4 distant to the blower fan by using at least one air guiding tube 3 , providing enhanced utility.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A blower fan includes a housing having a lateral wall defining a compartment. The housing includes an air inlet and an air outlet both in communication with the compartment. An impeller mounted in the compartment includes a hub and blades mounted on the hub. A first plane including opposite first and second end edges in the air outlet is parallel to and spaced from a second plane including a center of the hub. The compartment of the housing includes an air outlet section and a pressure accumulating section on opposite sides of the second plane. The air outlet section is located between the first and second planes. The lateral wall of the housing includes at least one air guiding hole located in the pressure accumulating section. At least one air guiding tube includes an outlet end and an inlet end coupled to the at least one air guiding hole.
Description
- 1. Field of the Invention
- The present invention relates to a blower fan and, more particularly, to a blower fan including air guiding tubes.
- 2. Description of the Related Art
- Conventional blower fans include a housing having an axial air inlet and a side air outlet. An impeller is rotatably mounted in the housing for drawing in air currents that are concentrated before exiting the side air outlet to a heat source. In use, the blower fans must be mounted adjacent the heat source with the side air outlet aligned with the heat source to assure temperature lowering of the heat source.
- Currently available electronic products may have several heat sources such as the main board, the central processing unit, the display card, etc located in different locations. However, the conventional blower fans can only perform heat dissipation for the heat sources adjacent the side air outlet. A solution to this is increasing the number of the blower fans that leads to inevitable increase in the costs. In another approach, the housing of the blower fan is provided with several air outlets or an external air guiding tube for dissipating heat generated by heat sources in different locations.
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FIG. 1 shows ablower fan 7 including asubstrate 71 on which an impeller unit 72 and alateral wall 73 are provided. Apressure accumulating channel 74 is formed on an inner side of thelateral wall 73 and includes two ends each having aradial air outlet 75. Thesubstrate 71 defines anaxial air inlet 76 perpendicular to theradial air outlets 75. The impeller unit 72 draws in air currents via theaxial air inlet 76. The air currents exit theradial air outlets 75 under the centrifugal force created during operation of the impeller unit 72 to dissipate heat generated by heat sources in different locations. An example of such ablower fan 7 is disclosed in Taiwan Patent Publication No. 516668. However, the heat sources can not always locate adjacent theradial air outlets 75. Thus, theblower fan 7 provides limited utility. -
FIG. 2 shows ablower fan 8 including aside air outlet 81 and anair guiding tube 82 coupled to theside air outlet 81. Theair guiding tube 82 can be coupled to aheat source 84 via aheat pad 83. By such an arrangement, theblower fan 8 not only dissipates heat by theside air outlet 81 but also generates air currents that are guided by theair guiding tube 82 to theheat source 84 distant to theblower fan 8. Theblower fan 8 generally includes a pressure accumulating section for increasing the wind pressure of the air currents generated by theblower fan 8. An example of such ablower fan 8 is disclosed in Taiwan Patent Publication No. 200517816. However, an end of theair guiding tube 82 coupled to theside air outlet 81 of the blower fan is not in the pressure accumulating section, such that the amount of air provided through theair guiding tube 82 is limited, failing to effectively lower the temperature of theheat source 84 and having unsatisfactory heat dissipating effect. -
FIG. 3 discloses ablower fan 9 including aside air outlet 92. Anair guiding tube 91 includes afirst end 911 coupled toblower fan 9 and asecond end 912 extending toward aheat source 93. In operation, the heat generated by theheat source 93 flow from thesecond end 912 to thefirst end 911 while theblower fan 9 generates air currents. Theside air outlet 92 of theblower fan 9 can be utilized to dissipate heat generated by another heat source. An example of such ablower fan 9 is disclosed in Taiwan Patent Publication No. 200528011. However, thefirst end 911 of theair guiding tube 91 is not in the pressure accumulating section of theblower fan 9. Furthermore, the heat generated by theheat source 93 must flow from thesecond end 912 to thefirst end 911, such that the heat dissipating effect provided by theair guiding tube 91 is still unsatisfactory. - An objective of the present invention is to provide a blower fan with increased air output.
- Another objective of the present invention is to provide a blower fan capable of dissipating heat of heat sources in different locations.
- The present invention fulfills the above objectives by providing, in a preferred form, a blower fan including a housing having a lateral wall defining a compartment. The housing further includes an air inlet and an air outlet both in communication with the compartment. The air outlet includes opposite first and second end edges. The housing defines a first plane passing the first and second end edges. An impeller is rotatably mounted in the compartment of the housing. The impeller includes a hub and a plurality of blades mounted on an outer periphery of the hub. The impeller defines a second plane including a center of the hub. The second plane is parallel to and spaced from the first plane. At least one air guiding tube includes an inlet end and an outlet end. The compartment of the housing includes an air outlet section and a pressure accumulating section on opposite sides of the second plane. The air outlet section is located between the first and second planes. The lateral wall of the housing includes at least one air guiding hole located in the pressure accumulating section. The inlet end of the at last one air guiding tube is coupled to the at least one air guiding hole.
- The present invention will become clearer in light of the following detailed description of illustrative embodiments of this invention described in connection with the drawings.
- The illustrative embodiments may best be described by reference to the accompanying drawings where:
-
FIG. 1 shows an elevational view of a conventional blower fan. -
FIG. 2 shows an exploded, perspective view of another conventional blower fan. -
FIG. 3 shows an exploded, perspective view of a further conventional blower fan. -
FIG. 4 shows an exploded, perspective view of a blower fan of a first embodiment according to the preferred teachings of the present invention. -
FIG. 5 shows a cross sectional view of the blower fan ofFIG. 4 . -
FIG. 6 shows a cross sectional view of a blower fan of a second embodiment according to the preferred teachings of the present invention. -
FIG. 7 shows a cross sectional view of a blower fan of a third embodiment according to the preferred teachings of the present invention. -
FIG. 8 shows a cross sectional view of a lower fan of a fourth embodiment according to the preferred teachings of the present invention. - All figures are drawn for ease of explanation of the basic teachings of the present invention only; the extensions of the figures with respect to number, position, relationship, and dimensions of the parts to form the preferred embodiments will be explained or will be within the skill of the art after the following teachings of the present invention have been read and understood. Further, the exact dimensions and dimensional proportions to conform to specific force, weight, strength, and similar requirements will likewise be within the skill of the art after the following teachings of the present invention have been read and understood.
- Where used in the various figures of the drawings, the same numerals designate the same or similar parts. Furthermore, when the terms “first”, “second”, “inner”, “outer”, “end”, “section”, “centrifugal”, and similar terms are used herein, it should be understood that these terms have reference only to the structure shown in the drawings as it would appear to a person viewing the drawings and are utilized only to facilitate describing the invention.
- A blower fan of a first embodiment according to the preferred teachings of the present invention is shown in
FIGS. 4 and 5 and generally includes ahousing 1, animpeller 2, and anair guiding tube 3. Thehousing 1 can be mounted in a desired location of an electronic product, such as a side of a main board inside a computer. Theimpeller 2 is rotatably mounted in thehousing 1 to generate enough amount of air for heat dissipating purposes. Theair guiding tube 3 is coupled to thehousing 1 for dissipating heat generated byheat sources 4 in different locations of the electronic product. - Specifically, the
housing 1 includes alateral wall 11 defining acompartment 111. Thehousing 1 further includes anair inlet 12 and anair outlet 13 that are in communication with thecompartment 111. Theair outlet 13 includes opposite first and second end edges 131 and 132. Thehousing 1 defines a first plane P1 passing the first and second end edges 131 and 132. Acover 14 is mounted to thelateral wall 11 of thehousing 1 and includes anopening 141 aligned with theair inlet 12. Air currents generated by theimpeller 2 can flow through theopening 141 and theair inlet 12 into thecompartment 111 of thehousing 1. Thehousing 1 can include at least one auxiliary air inlet preferably aligned with theair inlet 12. - The
impeller 2 is rotatably mounted in thecompartment 111 and includes ahub 21 and a plurality ofblades 22. Theimpeller 2 defines a second plane P2 including a center of thehub 21. The second plane P2 is parallel to and spaced from the first plane P1. Theblades 22 are mounted to an outer periphery of thehub 21 for driving the air currents to theair outlet 13 and theair guiding tube 3. - More specifically, the
compartment 111 is divided into anair outlet section 111 a and apressure accumulating section 111 b by defining the first and second planes P1 and P2. Theair outlet section 111 a is located between the first and second planes P1 and P2. Thepressure accumulating section 111 b and theair outlet section 111 a are located on opposite sides of the second plane P2. Thelateral wall 11 includes anair guiding hole 15 in thepressure accumulating section 111 b for coupling theair guiding tube 3. - The
air guiding tube 3 includes aninlet end 31 and anoutlet end 32. Theinlet end 31 is coupled to theair guiding hole 15 of thehousing 1 and in communication with thecompartment 111. Namely, theinlet end 31 is located in thepressure accumulating section 111 b. Theoutlet end 32 extends away from thehousing 1 for guiding the air currents to theheat source 4. - With reference to
FIG. 5 , in use, theair outlet 13 faces aheat source 4, and the length of theair guiding tube 3 allows it to extend to anotherheat source 4 with the outlet end 32 of theair guiding tube 3 facing theother heat source 4. Theimpeller 2 draws in air currents, and the centrifugal force created during operation of theimpeller 2 drives the air currents to theheat sources 4 via theair guiding tube 3 and theair outlet 13. Thus, the blower fan according to the teachings of the present invention can dissipate heat generated byheat sources 4 in different locations. - Since the
inlet end 31 of theair guiding tube 3 is in thepressure accumulating section 111 b, the wind pressure of the air currents drawn in by theimpeller 2 via theair inlet 12 can be accumulated in thepressure accumulating section 111 b to provide a larger wind pressure. Thus, the air currents driven by theblades 22 can flow more easily along an inner face of thelateral wall 11 of thehousing 1 to theheat source 4 after passing through theair guiding tube 3. Thus, theair guiding tube 3 provides more amount of air by the larger wind pressure to dissipate the heat generated by theheat source 4, enhancing the overall heat dissipating effect. - More specifically, with reference to
FIG. 5 , an inner wall S1 of theair guiding tube 3 according to the teachings of the present invention is preferably tangent to the inner face S2 of thelateral wall 11 in thepressure accumulating section 111 b. Thus, the air currents driven by theblades 22 flowing along the inner wall S2 of thelateral wall 11 of thehousing 1 encounters less resistance, so that theair guiding tube 3 can provide more amount of air for heat dissipating purposes. - The
housing 1 of the blower fan according to the teachings of the present invention can include one or moreair guiding holes 15 cooperating one or moreair guiding tubes 3 according to needs. Furthermore, the blower fan according to the teachings of the present invention can utilize various types of theair guiding tubes 3. - In a preferred form shown in
FIG. 6 , thelateral wall 11 of thehousing 1 includes anair guiding hole 15 located in thepressure accumulating section 111 b. Theair guiding tube 3 further includes a plurality ofbranch tubes 33 between theinlet end 31 and theoutlet end 32. Thebranch tubes 33 extend toadditional heat sources 4. Thus, theair guiding tube 3 can proceed with heat dissipation formore heat sources 4. - In another preferred form shown in
FIG. 7 , thelateral wall 11 of thehousing 1 includes anair guiding hole 15 located in thepressure accumulating section 111 b. Furthermore, there are twoair guiding tubes 3 provided for twoheat sources 4. Theinlet end 31 of eachair guiding tube 3 is coupled to theair guiding hole 15. Theoutlet end 32 of eachair guiding tube 3 extends toward one of the heat sources 4. Thus, theair guiding tubes 3 can proceed with heat dissipation for theheat sources 4 in different locations. Theair guiding tubes 3 can be integrally formed with each other as a single continuous monolithic member as desired. - In another preferred form shown in
FIG. 8 , thelateral wall 11 of thehousing 1 includes two air guiding holes 15 located in thepressure accumulating section 111 b. Furthermore, there are twoair guiding tubes 3 provide for a plurality ofheat sources 4. Theinlet end 31 of eachair guiding tube 3 is coupled to one of the air guiding holes 15. Eachair guiding tube 3 includes one ormore branch tubes 33 between theinlet end 31 and theoutlet end 32. Thus, theair guiding tubes 3 can proceed with heat dissipation formany heat sources 4, providing enhanced utility. - According to above, by locating the air inlet ends 31 of the
air guiding tubes 3 in thepressure accumulating section 111 b, the air currents driven by theimpeller 2 can flow through theair guiding tubes 3 to theheat sources 4 under less resistance, providing excellent heat dissipation and enhancing the heat dissipating effect. - The
air guiding tubes 3 according to the teachings of the present invention can provide more amount of air for dissipating heat generated by a plurality ofheat sources 4 while providing air output via theair outlet 13, of thehousing 1. Thus, the amount of outputted air is increased. - The blower fan according to the teachings of the present invention can proceed heat dissipation for a
heat source 4 via theair outlet 13 of thehousing 1 as well as for a plurality ofheat sources 4 distant to the blower fan by using at least oneair guiding tube 3, providing enhanced utility. - Thus since the invention disclosed herein may be embodied in other specific forms without departing from the spirit or general characteristics thereof, some of which forms have been indicated, the embodiments described herein are to be considered in all respects illustrative and not restrictive. The scope of the invention is to be indicated by the appended claims, rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are intended to be embraced therein.
Claims (7)
1. A blower fan comprising:
a housing including a lateral wall defining a compartment, with the housing further including an air inlet and an air outlet both in communication with the compartment, with the air outlet including opposite first and second end edges, with the housing defining a first plane passing the first and second end edges;
an impeller rotatably mounted in the compartment of the housing, with the impeller including a hub and a plurality of blades mounted on an outer periphery of the hub, with the impeller defining a second plane including a center of the hub, with the second plane parallel to and spaced from the first plane; and
at least one air guiding tube including an inlet end and an outlet end,
with the compartment of the housing including an air outlet section and a pressure accumulating section on opposite sides of the second plane, with the air outlet section located between the first and second planes, with the lateral wall of the housing including at least one air guiding hole located in the pressure accumulating section, with the inlet end of said at last one air guiding tube coupled to said at least one air guiding hole.
2. The blower fan as claimed in claim 1 , with said at least one air guiding tube including an inner wall tangent to an inner face of the lateral wall of the housing in the pressure accumulating section.
3. The blower fan as claimed in claim 1 , with said at least one air guiding tube further including a plurality of branch tubes between the inlet end and the outlet end.
4. The blower fan as claimed in claim 1 , with said at least one air guiding hole including an air guiding hole, with said at least one air guiding tube including two air guiding tubes, and with the inlet ends of the two air guiding tubes coupled to the air guiding hole.
5. The blower fan as claimed in claim 3 , with said at least one air guiding hole including an air guiding hole, with said at least one air guiding tube including two air guiding tubes, and with the inlet ends of the two air guiding tubes coupled to the air guiding hole.
6. The blower fan as claimed in claim 1 , with said at least one air guiding hole including two air guiding holes located in the pressure accumulating section, with said at least one air guiding tube including two air guiding tubes, and with the inlet end of each of the two air guiding tubes coupled to one of the two air guiding holes.
7. The blower fan as claimed in claim 3 , with said at least one air guiding hole including two air guiding holes located in the pressure accumulating section, with said at least one air guiding tube including two air guiding tubes, and with the inlet end of each of the two air guiding tubes coupled to one of the two air guiding holes.
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Application Number | Priority Date | Filing Date | Title |
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US12/613,709 US20110110774A1 (en) | 2009-11-06 | 2009-11-06 | Blower Fan |
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US12/613,709 US20110110774A1 (en) | 2009-11-06 | 2009-11-06 | Blower Fan |
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US20110110774A1 true US20110110774A1 (en) | 2011-05-12 |
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US12/613,709 Abandoned US20110110774A1 (en) | 2009-11-06 | 2009-11-06 | Blower Fan |
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Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104676677A (en) * | 2014-12-30 | 2015-06-03 | 广东美的厨房电器制造有限公司 | Microwave oven |
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US11131324B2 (en) * | 2016-09-02 | 2021-09-28 | Hewlett-Packard Development Company, L.P. | Fan housing for reduced noise |
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US11199197B2 (en) | 2019-09-06 | 2021-12-14 | Delta Electronics, Inc. | Centrifugal fan |
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US11240931B1 (en) | 2020-07-16 | 2022-02-01 | Dell Products, Lp | Variable height fan |
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US20230301017A1 (en) * | 2020-04-10 | 2023-09-21 | Acer Incorporated | Centrifugal heat dissipation fan and heat dissipation system of electronic device |
US11994144B2 (en) | 2020-10-30 | 2024-05-28 | Dell Products Lp | Blower system with an inner axial fan blade set and an outer centrifugal fan blade set |
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Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5559673A (en) * | 1994-09-01 | 1996-09-24 | Gagnon; Kevin M. | Dual filtered airflow systems for cooling computer components, with optimally placed air vents and switchboard control panel |
US5566377A (en) * | 1995-07-10 | 1996-10-15 | Lee; Richard | Heat dissipating apparatus |
US6073305A (en) * | 1998-03-02 | 2000-06-13 | Hesskamp; Scott | Debris blower |
US6178764B1 (en) * | 1998-03-31 | 2001-01-30 | Denso Corporation | Air conditioning system |
US6280318B1 (en) * | 2000-02-22 | 2001-08-28 | International Game Technology | Central forced air cooling of a gaming machine |
US6643129B2 (en) * | 2001-07-05 | 2003-11-04 | Kabushiki Kaisha Toshiba | Cooling unit including fan and plurality of air paths and electronic apparatus including the cooling unit |
US20060062669A1 (en) * | 2004-09-17 | 2006-03-23 | Tomomasa Nishikawa | Blower |
US20080019825A1 (en) * | 2004-05-19 | 2008-01-24 | Delta Electronics Inc. | Centrifugal fan and housing thereof |
US20080035317A1 (en) * | 2006-08-10 | 2008-02-14 | Lg Electronics Inc. | Air conditioner |
US20080053438A1 (en) * | 2003-08-04 | 2008-03-06 | Devries Douglas F | Portable ventilator system |
US20090324403A1 (en) * | 2008-06-30 | 2009-12-31 | Wen-Chun Zheng | Impeller with Hybrid Blades for Blowers |
-
2009
- 2009-11-06 US US12/613,709 patent/US20110110774A1/en not_active Abandoned
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5559673A (en) * | 1994-09-01 | 1996-09-24 | Gagnon; Kevin M. | Dual filtered airflow systems for cooling computer components, with optimally placed air vents and switchboard control panel |
US5566377A (en) * | 1995-07-10 | 1996-10-15 | Lee; Richard | Heat dissipating apparatus |
US6073305A (en) * | 1998-03-02 | 2000-06-13 | Hesskamp; Scott | Debris blower |
US6178764B1 (en) * | 1998-03-31 | 2001-01-30 | Denso Corporation | Air conditioning system |
US6280318B1 (en) * | 2000-02-22 | 2001-08-28 | International Game Technology | Central forced air cooling of a gaming machine |
US6643129B2 (en) * | 2001-07-05 | 2003-11-04 | Kabushiki Kaisha Toshiba | Cooling unit including fan and plurality of air paths and electronic apparatus including the cooling unit |
US20080053438A1 (en) * | 2003-08-04 | 2008-03-06 | Devries Douglas F | Portable ventilator system |
US20080019825A1 (en) * | 2004-05-19 | 2008-01-24 | Delta Electronics Inc. | Centrifugal fan and housing thereof |
US20060062669A1 (en) * | 2004-09-17 | 2006-03-23 | Tomomasa Nishikawa | Blower |
US20080035317A1 (en) * | 2006-08-10 | 2008-02-14 | Lg Electronics Inc. | Air conditioner |
US20090324403A1 (en) * | 2008-06-30 | 2009-12-31 | Wen-Chun Zheng | Impeller with Hybrid Blades for Blowers |
Cited By (34)
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US11878123B2 (en) | 2008-06-05 | 2024-01-23 | ResMed Pty Ltd | Treatment of respiratory conditions |
US10806889B2 (en) | 2008-06-05 | 2020-10-20 | ResMed Pty Ltd | Treatment of respiratory conditions |
US11229766B2 (en) | 2008-06-05 | 2022-01-25 | ResMed Pty Ltd | Treatment of respiratory conditions |
US11433213B2 (en) | 2008-06-05 | 2022-09-06 | ResMed Pty Ltd | Treatment of respiratory conditions |
US11247019B2 (en) | 2008-06-05 | 2022-02-15 | ResMed Pty Ltd | Treatment of respiratory conditions |
US10578118B2 (en) | 2009-10-29 | 2020-03-03 | ResMed Pty Ltd | Patient ventilation device including blower with divided air outlet channels |
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US10975880B2 (en) | 2009-10-29 | 2021-04-13 | ResMed Pty Ltd | Patient ventilation device including blower with scallopped shroud |
US20160040685A1 (en) * | 2014-08-08 | 2016-02-11 | Chieh-Yuan Cheng | Water cooling fan with multiple air outlets |
US10986750B2 (en) * | 2014-08-25 | 2021-04-20 | Hamilton Sundstrand Corporation | Heat exchange device in directed flow system |
US10506735B2 (en) * | 2014-08-25 | 2019-12-10 | Hamilton Sundstrand Corporation | Heat exchange device in directed flow system |
US20160057890A1 (en) * | 2014-08-25 | 2016-02-25 | Hamilton Sundstrand Corporation | Heat exchange device in directed flow system |
WO2016036626A1 (en) * | 2014-09-03 | 2016-03-10 | Microsoft Technology Licensing, Llc | Cooling fan and device comprising the same |
WO2016107233A1 (en) * | 2014-12-30 | 2016-07-07 | 广东美的厨房电器制造有限公司 | Microwave oven |
CN104676677A (en) * | 2014-12-30 | 2015-06-03 | 广东美的厨房电器制造有限公司 | Microwave oven |
US9918358B2 (en) | 2014-12-30 | 2018-03-13 | Guangdong Midea Kitchen Appliances Manufacturing Co., Ltd. | Microwave cooking device |
JP2018506688A (en) * | 2014-12-30 | 2018-03-08 | クワントン マイディア キッチン アプライアンシーズ マニュファクチャリング カンパニー リミテッドGuangdong Midea Kitchen Appliances Manufacturing Co., Ltd. | microwave |
US20180298914A1 (en) * | 2015-04-28 | 2018-10-18 | Denso Corporation | Blower |
US11131324B2 (en) * | 2016-09-02 | 2021-09-28 | Hewlett-Packard Development Company, L.P. | Fan housing for reduced noise |
US10982684B2 (en) * | 2018-02-05 | 2021-04-20 | Asustek Computer Inc. | Centrifugal fan |
US20190242400A1 (en) * | 2018-02-05 | 2019-08-08 | Asustek Computer Inc. | Centrifugal fan |
US10851800B2 (en) | 2019-04-25 | 2020-12-01 | Dell Products, Lp | Blower system with dual opposite outlets and fan diameter approaching to blower housing dimension for information handling systems |
US11109509B2 (en) * | 2019-05-03 | 2021-08-31 | Dell Products, Lp | Cooling module with blower system having dual opposite outlets for information handling systems |
US11199197B2 (en) | 2019-09-06 | 2021-12-14 | Delta Electronics, Inc. | Centrifugal fan |
US11028857B2 (en) | 2019-09-18 | 2021-06-08 | Dell Products, Lp | Cooling module with blower system having opposite, blower and impeller outlets for information handling systems |
US20230301017A1 (en) * | 2020-04-10 | 2023-09-21 | Acer Incorporated | Centrifugal heat dissipation fan and heat dissipation system of electronic device |
US11968800B2 (en) * | 2020-04-10 | 2024-04-23 | Acer Incorporated | Centrifugal heat dissipation fan and heat dissipation system of electronic device |
CN113534927A (en) * | 2020-04-17 | 2021-10-22 | 宏碁股份有限公司 | Centrifugal cooling fan and cooling system of electronic device |
CN113803291A (en) * | 2020-06-15 | 2021-12-17 | 台达电子工业股份有限公司 | Asymmetric double-air-outlet centrifugal fan |
US11578731B2 (en) * | 2020-06-15 | 2023-02-14 | Delta Electronics, Inc. | Asymmetrical double-outlet blower |
US11240931B1 (en) | 2020-07-16 | 2022-02-01 | Dell Products, Lp | Variable height fan |
US12055149B2 (en) | 2020-07-16 | 2024-08-06 | Dell Products Lp | Blower fan with through hole and fan support rod |
US11994144B2 (en) | 2020-10-30 | 2024-05-28 | Dell Products Lp | Blower system with an inner axial fan blade set and an outer centrifugal fan blade set |
CN114483631A (en) * | 2021-12-27 | 2022-05-13 | 卡富环球有限公司 | Relay air outlet piece, lamp body of ceiling fan, air duct structure, fan and ceiling fan |
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