US20080266791A1 - Redundant power supply system - Google Patents
Redundant power supply system Download PDFInfo
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- US20080266791A1 US20080266791A1 US11/764,346 US76434607A US2008266791A1 US 20080266791 A1 US20080266791 A1 US 20080266791A1 US 76434607 A US76434607 A US 76434607A US 2008266791 A1 US2008266791 A1 US 2008266791A1
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- Prior art keywords
- power supply
- circuit board
- supply apparatus
- converting circuit
- supply system
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/2015—Redundant power supplies
Definitions
- the present invention relates to a power supply system, and more particularly to a redundant power supply system.
- Power supply apparatuses are essential for many electronic appliances such as personal computers, industrial computers, servers, communication products or network products. Normally, the power supply apparatus may provide stable electricity to the electronic appliance. In a case that the power supply apparatus has a breakdown, the electronic appliance is possibly damaged or the data stored in the electronic appliance is lost.
- a redundant power supply system has been proposed.
- the redundant power supply system includes a plurality of separated power supply apparatuses, which are electrically to each other and contained in a system cabinet. During operation of the redundant power supply system, individual power supply apparatuses share responsibility for providing electricity to the electronic appliance. If one of the power supply apparatuses has a breakdown and fails to normally provide electricity, the others could continuously provide electricity to the loads.
- the redundant power supply system 1 principally includes a system cabinet 10 , a first power supply apparatus 11 and a second power supply apparatus 12 .
- the system cabinet 10 includes a first receptacle 102 and a second receptacle 103 , which are separated by a partition plate 101 .
- the first power supply apparatus 11 and the second power supply apparatus 12 are accommodated within the first receptacle 102 and the second receptacle 103 , respectively.
- the redundant power supply system 1 further includes a backside plate 13 inside the system cabinet 10 .
- a first insertion slot 131 and a second insertion slot 132 are disposed on the backside plate 13 .
- the first connection interface 111 of the first power supply apparatus 11 and the second connection interface 121 of the second power supply apparatus 12 are respectively inserted into the first insertion slot 131 and the second insertion slot 132 so as to be electrically connected to the backside plate 13 .
- a power cable 14 is extended from the outer surface of the backside plate 13 , so that the electricity provided by the redundant power supply system 1 is transmitted to an electronic appliance via the power cable 14 .
- the backside plate 13 of the redundant power supply system 1 is an adapter interface for transferring the electricity provided by the first power supply apparatus 11 and the second power supply apparatus 12 . Under this circumstance, no power converting circuit is arranged on the backside plate 13 .
- the first power supply apparatus 11 and the second power supply apparatus 12 further include power converting circuits such as AC-to-DC converting circuits or DC-to-DC converting circuits.
- the power converting circuits inside the first power supply apparatus 11 and the second power supply apparatus 12 are electrically to the electronic appliance.
- the first power supply apparatus 11 and the second power supply apparatus 12 are relatively long.
- one of the power supply apparatuses has a breakdown and fails to normally provide electricity
- the other power supply apparatus could continuously provide electricity to the electronic appliance.
- the heat generated from the backside plate 13 fails to be effectively dissipated away.
- the redundant power supply system 1 has insufficient heat-dissipating efficiency, lowered power-converting efficiency or shortened life.
- the redundant power supply system 1 principally includes a system cabinet 15 , a first power supply apparatus 16 and a second power supply apparatus 17 .
- the system cabinet 15 includes a first receptacle 152 and a second receptacle 153 , which are separated by a partition plate 151 .
- the first power supply apparatus 16 and the second power supply apparatus 17 are accommodated within the first receptacle 152 and the second receptacle 153 , respectively.
- the redundant power supply system 1 further includes a backside plate member 18 inside the system cabinet 15 .
- the backside plate member 18 includes a first backside plate 181 and a second backside plate 182 .
- a first insertion slot 183 and a second insertion slot 184 are disposed on the first backside plate 181 and the second backside plate 182 , respectively.
- the first connection interface 161 of the first power supply apparatus 16 and the second connection interface 171 of the second power supply apparatus 17 are respectively inserted into the first insertion slot 183 and the second insertion slot 184 so as to be electrically connected to the first backside plate 181 and the second backside plate 182 .
- the first backside plate 181 and the second backside plate 182 are parallel with the first power supply apparatus 16 and the second power supply apparatus 17 , respectively.
- the first backside plate 181 and the second backside plate 182 are electrically to each other via plural circuit boards 185 .
- the first backside plate 181 , the second backside plate 182 and the circuit boards 185 cooperatively form a power converting circuit.
- a power cable 19 is extended from the outer surface of the second backside plate 182 , so that the electricity provided by the redundant power supply system 1 is transmitted to an electronic appliance via the power cable 19 .
- the first backside plate 181 , the second backside plate 182 and the circuit boards 185 cooperatively form a power converting circuit, there are still some drawbacks. Since the first backside plate 181 and the second backside plate 182 are respectively parallel with the first power supply apparatus 16 and the second power supply apparatus 17 , the overall length of the redundant power supply system 1 fails to be further reduced. In addition, the configuration of the redundant power supply system 1 shown in FIG. 1( b ) is very complicated and difficult to assemble. Likewise, although the other power supply apparatus could continuously provide electricity to the electronic appliance if one power supply apparatus has a breakdown, the heat generated from the backside plates fails to be effectively dissipated away. Since no additional airflow is provided in the system cabinet 15 , the redundant power supply system 1 has insufficient heat-dissipating efficiency.
- Another object of the present invention provides a redundant power supply system, in which a power converting circuit board cooperates with the ventilation holes of the system cabinet to remove heat and shorten the length of the whole system.
- a further object of the present invention provides a redundant power supply system, which is electrically connected to many kinds of electronic appliances (e.g. personal computers, industrial computers, servers, communication products or network products) via electronic connectors of different specifications.
- electronic appliances e.g. personal computers, industrial computers, servers, communication products or network products
- a redundant power supply system includes a system cabinet, a first power supply apparatus, a second power supply apparatus and a power converting circuit board.
- the system cabinet at least includes a first receptacle and a second receptacle.
- the first power supply apparatus has a first connection interface.
- the second power supply apparatus has a second connection interface.
- the power converting circuit board is disposed inside the system cabinet and includes a first insertion slot, a second insertion slot and a power converting circuit.
- the power converting circuit board is substantially perpendicular to the length directions of the first power supply apparatus and the second power supply apparatus.
- a voltage outputted from the first power supply apparatus and/or the second power supply apparatus is converted by the power converting circuit into a regulated voltage when the first connection interface of the first power supply apparatus and the second connection interface of the second power supply apparatus are inserted into the first insertion slot and the second insertion slot, respectively.
- FIG. 1( a ) is a schematic exploded view of a conventional redundant power supply system
- FIG. 1( b ) is a schematic exploded view of another conventional redundant power supply system
- FIG. 2 is a schematic exploded view of a redundant power supply system according to a preferred embodiment of the present invention
- FIGS. 3( a ) and 3 ( b ) are schematic assembled views of the first power supply apparatus of FIG. 2 taken from different viewpoints;
- FIGS. 4( a ) and 4 ( b ) are schematic assembled views of the power converting circuit board of the redundant power supply system of FIG. 2 taken from different viewpoints;
- FIG. 5 is a schematic view illustrating a metallic frame mounted on the power converting circuit board
- FIG. 6 schematically illustrates that the first connection interface of the first power supply apparatus is inserted into the first insertion slot of the power converting circuit board
- FIG. 7 is a schematic view illustrating electronic connectors of the system cabinet.
- the redundant power supply system 2 of FIG. 2 principally includes a system cabinet 20 , a first power supply apparatus 21 and a second power supply apparatus 22 .
- the system cabinet 20 includes a first receptacle 202 and a second receptacle 203 , which are separated by a partition plate 201 .
- the first power supply apparatus 21 and the second power supply apparatus 22 may be accommodated within the first receptacle 202 and the second receptacle 203 , respectively. That is, the power supply apparatuses 21 and 22 are swappable to be embedded into the receptacles 202 and 203 , respectively.
- the redundant power supply system 2 further includes a power converting circuit board 23 inside the system cabinet 20 .
- the power converting circuit board 23 include a DC/DC converting circuit.
- the power converting circuit board 23 is disposed on the inner surface of the backside of the system cabinet 20 and substantially perpendicular to the length direction of the system cabinet 20 .
- the power converting circuit board 23 further includes a first insertion slot 231 and a second insertion slot 232 , which are mounted on a first surface of the power converting circuit board 23 .
- the first connection interface 211 of the first power supply apparatus 21 and the second connection interface 221 of the second power supply apparatus 22 are respectively inserted into the first insertion slot 231 and the second insertion slot 232 so as to be electrically connected to the power converting circuit board 23 .
- the first connection interface 211 and the second connection interface 221 are edge connectors, which are respectively disposed at edges of circuit boards (not shown) inside the first power supply apparatus 21 and the second power supply apparatus 22 .
- At least a surface of the system cabinet 20 further includes plural ventilation holes 204 in the vicinity of the power converting circuit board 23 .
- the airflow inhaled by the fans inside the first power supply apparatus 21 and the second power supply apparatus 22 may also remove a portion of heat from the power converting circuit board 23 , and the heated air is exhausted through the ventilation holes 204 in order to enhance the heat-dissipating efficiency.
- FIGS. 3( a ) and 3 ( b ) are schematic assembled views of the first power supply apparatus of FIG. 2 taken from different viewpoints.
- the configuration of the second power supply apparatus 22 is substantially identical to that of the first power supply apparatus 21 .
- the first power supply apparatus 21 principally includes a casing 210 , a main circuit board 212 and a fan 213 .
- the main circuit board 212 is disposed within the casing 210 .
- An edge of the main circuit board 212 has a first connection interface 211 , which is penetrated through an airflow opening 214 of the casing 210 .
- a perforation (not shown) is disposed in the middle region of the main circuit board 212 for receiving the fan 213 therein, so that the fan 213 is positioned on the middle region of the main circuit board 212 .
- a first airflow channel 216 is cooperatively defined by the upper inner wall of the casing 210 and the upper surface of the main circuit board 212
- a second airflow channel 217 is cooperatively defined by the lower inner wall of the casing 210 and the lower surface of the main circuit board 212 .
- the first power supply apparatus 21 further includes a handle 218 and a fastening element 219 .
- the first power supply apparatus 21 may be withdrawn from the system cabinet 20 of the redundant power supply system 2 . Moreover, after the first power supply apparatus 21 is placed into the first receptacle 202 of the system cabinet 20 , the first power supply apparatus 21 is fixed in the system cabinet 20 via the fastening element 219 so as to avoid accidentally swapping the first power supply apparatus 21 .
- the first power supply apparatus 21 further includes an AC socket 29 , which is disposed at an edge of the main circuit board 212 .
- the casing 210 of the first power supply apparatus 21 further includes a notch 215 under the first connection interface 211 for facilitating heat dissipation.
- the heat generated from the upper portion and the lower portion of the first insertion slot 231 may be removed through the first airflow channel 216 and the second airflow channel 217 , respectively.
- the casing 210 of the first power supply apparatus 21 may include an additional notch at the top surface thereof.
- FIGS. 4( a ) and 4 ( b ) are schematic assembled views of the power converting circuit board of the redundant power supply system of FIG. 2 taken from different viewpoints.
- the power converting circuit board 23 includes the first insertion slot 231 , the second insertion slot 232 and a power converting circuit 233 .
- An example of the power converting circuit 233 is a DC/DC converting circuit.
- the power converting circuit 233 the voltage outputted from the power supply apparatus 21 or 22 may be converted to a regulated voltage required for powering an electronic appliance.
- the power converting circuit board 23 further includes an auxiliary circuit board 25 on a second surface of the power converting circuit board 23 .
- the second surface is opposed to the first surface.
- the auxiliary circuit board 25 is fixed onto the power converting circuit board 23 via fixing elements 26 .
- each fixing element 26 is a screw post having an inner-threaded groove.
- the power converting circuit board 23 and the auxiliary circuit board 25 have screw holes corresponding to the fixing elements 26 .
- the screws 30 are successively penetrated through corresponding screw holes of the power converting circuit board 23 , the inner-threaded grooves of the fixing elements 26 and the screw holes of the auxiliary circuit board 25 , the screws 30 are engaged with corresponding screw nuts 27 such that the auxiliary circuit board 25 is fixed onto the power converting circuit board 23 . Since the problems resulting from welding operations are avoided, the auxiliary circuit board 25 is easily fastened onto the power converting circuit board 23 . Moreover, plural electronic connectors 24 are mounted on the auxiliary circuit board 25 at the surface far away from the power converting circuit board 23 .
- the electronic connectors 24 are electrically connected to the power converting circuit board 23 through the auxiliary circuit board 25 and the fixing elements 26 so that the electrical current can be conveyed from the power converting circuit board 23 to the electronic connectors 24 .
- the electronic connectors 24 are protruded from the backside of the system cabinet 20 , as is shown in FIG. 7 .
- the AC input voltage is converted by the power converting circuit board 23 and the converted voltage is transmitted to electronic appliances through the electronic connectors 24 on the auxiliary circuit board 25 .
- the redundant power supply system 2 is electrically connected to the electronic appliances via the electronic connectors 24 .
- Exemplary electronic appliances include personal computers, industrial computers, servers, communication products or network products.
- the conventional redundant power supply system can be applied to specified electronic appliances.
- the power cable (not shown) for interconnecting the electronic connectors 24 of the redundant power supply system 2 and the electronic appliances are varied.
- the redundant power supply system 2 may be applied to more electronic appliances as required.
- the power converting circuit board 23 further includes a metallic frame 28 on the first surface thereof.
- the region of the first surface of the power converting circuit board 23 excluding the first insertion slot 231 and the second insertion slot 232 is sheltered by the metallic frame 28 , thereby preventing from electromagnetic interference (EMI).
- EMI electromagnetic interference
- the metallic frame 28 since the metallic frame 28 is made of high thermally-conductive material, the metallic frame 28 may also facilitate heat dissipation of the power converting circuit board 23 during operations of the first power supply apparatus 21 and the second power supply apparatus 22 .
- the airflow provided from the other one of the power supply apparatuses 21 and 22 cooperates with the metallic frame 28 to perform heat dissipation and temperature homogenization, thereby enhancing the heat-dissipating efficiency of the whole system.
- the first connection interface 211 of the first power supply apparatus 21 is inserted into the first insertion slot 231 of the power converting circuit board 23 .
- FIG. 3( a ), FIG. 3( b ) and also FIG. 6 Since the notch 215 is disposed at the bottom edge of the casing 210 of the first power supply apparatus 21 , the airflow driven by the fan 213 inside the casing 210 may be guided to the upper portion and the lower portion of the first insertion slot 231 through the first airflow channel 216 and the second airflow channel 217 , respectively.
- the airflow driven by the fan 213 may be guided in the vicinity of the second insertion slot 232 of the power converting circuit board 23 through the second airflow channel 217 and the notch 215 , thereby enhancing the heat-dissipating efficiency.
- the first power supply apparatus 21 and the second power supply apparatus 22 are mounted on the power converting circuit board 23 within the redundant power supply system 2 . Since the power converting circuit board 23 is substantially perpendicular to the length directions of the power supply apparatuses 21 and 22 , the power supply apparatuses 21 and 22 may be shortened in order to scale down the size of the redundant power supply system 2 .
- the power converting circuit board 23 since the power converting circuit board 23 is disposed on the inner surface of the backside of the system cabinet 20 , the power converting circuit board 23 may cooperate with the ventilation holes 204 of the system cabinet 20 and the notch 215 of the casing 210 to provide a path for allowing airflow to remove heat of the power converting circuit board 23 even if one of the power supply apparatuses 21 and 22 has a breakdown.
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Abstract
Description
- The present invention relates to a power supply system, and more particularly to a redundant power supply system.
- Power supply apparatuses are essential for many electronic appliances such as personal computers, industrial computers, servers, communication products or network products. Normally, the power supply apparatus may provide stable electricity to the electronic appliance. In a case that the power supply apparatus has a breakdown, the electronic appliance is possibly damaged or the data stored in the electronic appliance is lost. For enhancing capacity and reliability of power supply, a redundant power supply system has been proposed. The redundant power supply system includes a plurality of separated power supply apparatuses, which are electrically to each other and contained in a system cabinet. During operation of the redundant power supply system, individual power supply apparatuses share responsibility for providing electricity to the electronic appliance. If one of the power supply apparatuses has a breakdown and fails to normally provide electricity, the others could continuously provide electricity to the loads.
- Referring to
FIG. 1( a), a schematic exploded view of a conventional redundant power supply system is illustrated. The redundantpower supply system 1 principally includes asystem cabinet 10, a firstpower supply apparatus 11 and a second power supply apparatus 12. Thesystem cabinet 10 includes afirst receptacle 102 and asecond receptacle 103, which are separated by apartition plate 101. The firstpower supply apparatus 11 and the second power supply apparatus 12 are accommodated within thefirst receptacle 102 and thesecond receptacle 103, respectively. The redundantpower supply system 1 further includes abackside plate 13 inside thesystem cabinet 10. Afirst insertion slot 131 and asecond insertion slot 132 are disposed on thebackside plate 13. Thefirst connection interface 111 of the firstpower supply apparatus 11 and thesecond connection interface 121 of the second power supply apparatus 12 are respectively inserted into thefirst insertion slot 131 and thesecond insertion slot 132 so as to be electrically connected to thebackside plate 13. Apower cable 14 is extended from the outer surface of thebackside plate 13, so that the electricity provided by the redundantpower supply system 1 is transmitted to an electronic appliance via thepower cable 14. - Since the
backside plate 13 of the redundantpower supply system 1 is an adapter interface for transferring the electricity provided by the firstpower supply apparatus 11 and the second power supply apparatus 12. Under this circumstance, no power converting circuit is arranged on thebackside plate 13. For converting input voltages into regulated voltages, the firstpower supply apparatus 11 and the second power supply apparatus 12 further include power converting circuits such as AC-to-DC converting circuits or DC-to-DC converting circuits. When thefirst connection interface 111 of the firstpower supply apparatus 11 and thesecond connection interface 121 of the second power supply apparatus 12 are respectively inserted into thefirst insertion slot 131 and thesecond insertion slot 132 of thebackside plate 13, the power converting circuits inside the firstpower supply apparatus 11 and the second power supply apparatus 12 are electrically to the electronic appliance. As a consequence, the firstpower supply apparatus 11 and the second power supply apparatus 12 are relatively long. In a case that one of the power supply apparatuses has a breakdown and fails to normally provide electricity, the other power supply apparatus could continuously provide electricity to the electronic appliance. However, there are still some drawbacks. For example, the heat generated from thebackside plate 13 fails to be effectively dissipated away. In addition, the airflows driven by the fans inside the power supply apparatuses are impeded by thebackside plate 13. Since no additional airflow is provided in thesystem cabinet 10, the redundantpower supply system 1 has insufficient heat-dissipating efficiency, lowered power-converting efficiency or shortened life. - Referring to
FIG. 1( b), a schematic exploded view of another conventional redundant power supply system is illustrated. The redundantpower supply system 1 principally includes asystem cabinet 15, a firstpower supply apparatus 16 and a secondpower supply apparatus 17. Thesystem cabinet 15 includes afirst receptacle 152 and asecond receptacle 153, which are separated by apartition plate 151. The firstpower supply apparatus 16 and the secondpower supply apparatus 17 are accommodated within thefirst receptacle 152 and thesecond receptacle 153, respectively. The redundantpower supply system 1 further includes abackside plate member 18 inside thesystem cabinet 15. Thebackside plate member 18 includes afirst backside plate 181 and asecond backside plate 182. Afirst insertion slot 183 and asecond insertion slot 184 are disposed on thefirst backside plate 181 and thesecond backside plate 182, respectively. Thefirst connection interface 161 of the firstpower supply apparatus 16 and thesecond connection interface 171 of the secondpower supply apparatus 17 are respectively inserted into thefirst insertion slot 183 and thesecond insertion slot 184 so as to be electrically connected to thefirst backside plate 181 and thesecond backside plate 182. Thefirst backside plate 181 and thesecond backside plate 182 are parallel with the firstpower supply apparatus 16 and the secondpower supply apparatus 17, respectively. Thefirst backside plate 181 and thesecond backside plate 182 are electrically to each other viaplural circuit boards 185. Thefirst backside plate 181, thesecond backside plate 182 and thecircuit boards 185 cooperatively form a power converting circuit. Apower cable 19 is extended from the outer surface of thesecond backside plate 182, so that the electricity provided by the redundantpower supply system 1 is transmitted to an electronic appliance via thepower cable 19. - Although the
first backside plate 181, thesecond backside plate 182 and thecircuit boards 185 cooperatively form a power converting circuit, there are still some drawbacks. Since thefirst backside plate 181 and thesecond backside plate 182 are respectively parallel with the firstpower supply apparatus 16 and the secondpower supply apparatus 17, the overall length of the redundantpower supply system 1 fails to be further reduced. In addition, the configuration of the redundantpower supply system 1 shown inFIG. 1( b) is very complicated and difficult to assemble. Likewise, although the other power supply apparatus could continuously provide electricity to the electronic appliance if one power supply apparatus has a breakdown, the heat generated from the backside plates fails to be effectively dissipated away. Since no additional airflow is provided in thesystem cabinet 15, the redundantpower supply system 1 has insufficient heat-dissipating efficiency. - In views of the above-described disadvantages resulted from the conventional method, the applicant keeps on carving unflaggingly to develop a redundant power supply system according to the present invention through wholehearted experience and research.
- It is an object of the present invention to provide a redundant power supply system having a scale-down size and enhanced heat-dissipating efficiency.
- Another object of the present invention provides a redundant power supply system, in which a power converting circuit board cooperates with the ventilation holes of the system cabinet to remove heat and shorten the length of the whole system.
- A further object of the present invention provides a redundant power supply system, which is electrically connected to many kinds of electronic appliances (e.g. personal computers, industrial computers, servers, communication products or network products) via electronic connectors of different specifications.
- In accordance with an aspect of the present invention, there is provided a redundant power supply system. The redundant power supply system includes a system cabinet, a first power supply apparatus, a second power supply apparatus and a power converting circuit board. The system cabinet at least includes a first receptacle and a second receptacle. The first power supply apparatus has a first connection interface. The second power supply apparatus has a second connection interface. The power converting circuit board is disposed inside the system cabinet and includes a first insertion slot, a second insertion slot and a power converting circuit. The power converting circuit board is substantially perpendicular to the length directions of the first power supply apparatus and the second power supply apparatus. A voltage outputted from the first power supply apparatus and/or the second power supply apparatus is converted by the power converting circuit into a regulated voltage when the first connection interface of the first power supply apparatus and the second connection interface of the second power supply apparatus are inserted into the first insertion slot and the second insertion slot, respectively.
- The above contents of the present invention will become more readily apparent to those ordinarily skilled in the art after reviewing the following detailed description and accompanying drawings, in which:
-
FIG. 1( a) is a schematic exploded view of a conventional redundant power supply system; -
FIG. 1( b) is a schematic exploded view of another conventional redundant power supply system; -
FIG. 2 is a schematic exploded view of a redundant power supply system according to a preferred embodiment of the present invention; -
FIGS. 3( a) and 3(b) are schematic assembled views of the first power supply apparatus ofFIG. 2 taken from different viewpoints; -
FIGS. 4( a) and 4(b) are schematic assembled views of the power converting circuit board of the redundant power supply system ofFIG. 2 taken from different viewpoints; -
FIG. 5 is a schematic view illustrating a metallic frame mounted on the power converting circuit board; -
FIG. 6 schematically illustrates that the first connection interface of the first power supply apparatus is inserted into the first insertion slot of the power converting circuit board; and -
FIG. 7 is a schematic view illustrating electronic connectors of the system cabinet. - The present invention will now be described more specifically with reference to the following embodiments. It is to be noted that the following descriptions of preferred embodiments of this invention are presented herein for purpose of illustration and description only. It is not intended to be exhaustive or to be limited to the precise form disclosed.
- Referring to
FIG. 2 , a schematic exploded view of a redundant power supply system according to a preferred embodiment of the present invention is illustrated. The redundantpower supply system 2 ofFIG. 2 principally includes asystem cabinet 20, a firstpower supply apparatus 21 and a secondpower supply apparatus 22. Thesystem cabinet 20 includes afirst receptacle 202 and asecond receptacle 203, which are separated by apartition plate 201. The firstpower supply apparatus 21 and the secondpower supply apparatus 22 may be accommodated within thefirst receptacle 202 and thesecond receptacle 203, respectively. That is, thepower supply apparatuses receptacles power supply system 2 further includes a power convertingcircuit board 23 inside thesystem cabinet 20. For example, the power convertingcircuit board 23 include a DC/DC converting circuit. The power convertingcircuit board 23 is disposed on the inner surface of the backside of thesystem cabinet 20 and substantially perpendicular to the length direction of thesystem cabinet 20. The power convertingcircuit board 23 further includes afirst insertion slot 231 and asecond insertion slot 232, which are mounted on a first surface of the power convertingcircuit board 23. Thefirst connection interface 211 of the firstpower supply apparatus 21 and thesecond connection interface 221 of the secondpower supply apparatus 22 are respectively inserted into thefirst insertion slot 231 and thesecond insertion slot 232 so as to be electrically connected to the power convertingcircuit board 23. In some embodiments, thefirst connection interface 211 and thesecond connection interface 221 are edge connectors, which are respectively disposed at edges of circuit boards (not shown) inside the firstpower supply apparatus 21 and the secondpower supply apparatus 22. At least a surface of thesystem cabinet 20 further includes plural ventilation holes 204 in the vicinity of the power convertingcircuit board 23. The airflow inhaled by the fans inside the firstpower supply apparatus 21 and the secondpower supply apparatus 22 may also remove a portion of heat from the power convertingcircuit board 23, and the heated air is exhausted through the ventilation holes 204 in order to enhance the heat-dissipating efficiency. -
FIGS. 3( a) and 3(b) are schematic assembled views of the first power supply apparatus ofFIG. 2 taken from different viewpoints. The configuration of the secondpower supply apparatus 22 is substantially identical to that of the firstpower supply apparatus 21. For clarification, only the firstpower supply apparatus 21 is described. As shown inFIGS. 2 , 3(a) and 3(b), the firstpower supply apparatus 21 principally includes acasing 210, amain circuit board 212 and afan 213. Themain circuit board 212 is disposed within thecasing 210. An edge of themain circuit board 212 has afirst connection interface 211, which is penetrated through anairflow opening 214 of thecasing 210. Especially, a perforation (not shown) is disposed in the middle region of themain circuit board 212 for receiving thefan 213 therein, so that thefan 213 is positioned on the middle region of themain circuit board 212. Afirst airflow channel 216 is cooperatively defined by the upper inner wall of thecasing 210 and the upper surface of themain circuit board 212, and asecond airflow channel 217 is cooperatively defined by the lower inner wall of thecasing 210 and the lower surface of themain circuit board 212. In some embodiments, the firstpower supply apparatus 21 further includes ahandle 218 and afastening element 219. In response to a pulling force exerted on thehandle 218, the firstpower supply apparatus 21 may be withdrawn from thesystem cabinet 20 of the redundantpower supply system 2. Moreover, after the firstpower supply apparatus 21 is placed into thefirst receptacle 202 of thesystem cabinet 20, the firstpower supply apparatus 21 is fixed in thesystem cabinet 20 via thefastening element 219 so as to avoid accidentally swapping the firstpower supply apparatus 21. Optionally, the firstpower supply apparatus 21 further includes anAC socket 29, which is disposed at an edge of themain circuit board 212. As shown inFIG. 3( b), thecasing 210 of the firstpower supply apparatus 21 further includes anotch 215 under thefirst connection interface 211 for facilitating heat dissipation. In a case that thefirst connection interface 211 is inserted into thefirst insertion slot 231 of the power convertingcircuit board 23, as is shown inFIG. 6 , the heat generated from the upper portion and the lower portion of thefirst insertion slot 231 may be removed through thefirst airflow channel 216 and thesecond airflow channel 217, respectively. It is noted that, however, those skilled in the art will readily observe that numerous modifications and alterations may be made while retaining the teachings of the invention. For example, thecasing 210 of the firstpower supply apparatus 21 may include an additional notch at the top surface thereof. -
FIGS. 4( a) and 4(b) are schematic assembled views of the power converting circuit board of the redundant power supply system ofFIG. 2 taken from different viewpoints. As shown inFIGS. 4( a) and 4(b), the power convertingcircuit board 23 includes thefirst insertion slot 231, thesecond insertion slot 232 and apower converting circuit 233. An example of thepower converting circuit 233 is a DC/DC converting circuit. By thepower converting circuit 233, the voltage outputted from thepower supply apparatus heat sink 234 is attached onto a surface of the power convertingcircuit board 23 for facilitating heat dissipation of the power convertingcircuit board 23. In some embodiments, the power convertingcircuit board 23 further includes anauxiliary circuit board 25 on a second surface of the power convertingcircuit board 23. The second surface is opposed to the first surface. Theauxiliary circuit board 25 is fixed onto the power convertingcircuit board 23 via fixingelements 26. In some embodiments, each fixingelement 26 is a screw post having an inner-threaded groove. The power convertingcircuit board 23 and theauxiliary circuit board 25 have screw holes corresponding to the fixingelements 26. Afterscrews 30 are successively penetrated through corresponding screw holes of the power convertingcircuit board 23, the inner-threaded grooves of the fixingelements 26 and the screw holes of theauxiliary circuit board 25, thescrews 30 are engaged withcorresponding screw nuts 27 such that theauxiliary circuit board 25 is fixed onto the power convertingcircuit board 23. Since the problems resulting from welding operations are avoided, theauxiliary circuit board 25 is easily fastened onto the power convertingcircuit board 23. Moreover, pluralelectronic connectors 24 are mounted on theauxiliary circuit board 25 at the surface far away from the power convertingcircuit board 23. Theelectronic connectors 24 are electrically connected to the power convertingcircuit board 23 through theauxiliary circuit board 25 and the fixingelements 26 so that the electrical current can be conveyed from the power convertingcircuit board 23 to theelectronic connectors 24. After the firstpower supply apparatus 21 is inserted into thesystem cabinet 20, theelectronic connectors 24 are protruded from the backside of thesystem cabinet 20, as is shown inFIG. 7 . Meanwhile, the AC input voltage is converted by the power convertingcircuit board 23 and the converted voltage is transmitted to electronic appliances through theelectronic connectors 24 on theauxiliary circuit board 25. In other words, the redundantpower supply system 2 is electrically connected to the electronic appliances via theelectronic connectors 24. Exemplary electronic appliances include personal computers, industrial computers, servers, communication products or network products. As previously described in the prior art, since the power cable is extended from the outer surface of the backside plate, the conventional redundant power supply system can be applied to specified electronic appliances. According to the present invention, depending on the types of theelectronic connectors 24, the power cable (not shown) for interconnecting theelectronic connectors 24 of the redundantpower supply system 2 and the electronic appliances are varied. As a consequence, the redundantpower supply system 2 may be applied to more electronic appliances as required. - A further embodiment of the power converting
circuit board 23 is illustrated inFIG. 5 . The power convertingcircuit board 23 further includes ametallic frame 28 on the first surface thereof. The region of the first surface of the power convertingcircuit board 23 excluding thefirst insertion slot 231 and thesecond insertion slot 232 is sheltered by themetallic frame 28, thereby preventing from electromagnetic interference (EMI). Furthermore, since themetallic frame 28 is made of high thermally-conductive material, themetallic frame 28 may also facilitate heat dissipation of the power convertingcircuit board 23 during operations of the firstpower supply apparatus 21 and the secondpower supply apparatus 22. In a case that one of thepower supply apparatuses power supply apparatuses metallic frame 28 to perform heat dissipation and temperature homogenization, thereby enhancing the heat-dissipating efficiency of the whole system. - Referring to
FIG. 6 , thefirst connection interface 211 of the firstpower supply apparatus 21 is inserted into thefirst insertion slot 231 of the power convertingcircuit board 23. Please refer toFIG. 3( a),FIG. 3( b) and alsoFIG. 6 . Since thenotch 215 is disposed at the bottom edge of thecasing 210 of the firstpower supply apparatus 21, the airflow driven by thefan 213 inside thecasing 210 may be guided to the upper portion and the lower portion of thefirst insertion slot 231 through thefirst airflow channel 216 and thesecond airflow channel 217, respectively. Even if the secondpower supply apparatus 22 has a breakdown, the airflow driven by thefan 213 may be guided in the vicinity of thesecond insertion slot 232 of the power convertingcircuit board 23 through thesecond airflow channel 217 and thenotch 215, thereby enhancing the heat-dissipating efficiency. - In the above embodiments, the first
power supply apparatus 21 and the secondpower supply apparatus 22 are mounted on the power convertingcircuit board 23 within the redundantpower supply system 2. Since the power convertingcircuit board 23 is substantially perpendicular to the length directions of thepower supply apparatuses power supply apparatuses power supply system 2. Moreover, since the power convertingcircuit board 23 is disposed on the inner surface of the backside of thesystem cabinet 20, the power convertingcircuit board 23 may cooperate with the ventilation holes 204 of thesystem cabinet 20 and thenotch 215 of thecasing 210 to provide a path for allowing airflow to remove heat of the power convertingcircuit board 23 even if one of thepower supply apparatuses - While the invention has been described in terms of what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention needs not be limited to the disclosed embodiment. On the contrary, it is intended to cover various modifications and similar arrangements included within the spirit and scope of the appended claims which are to be accorded with the broadest interpretation so as to encompass all such modifications and similar structures.
Claims (16)
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TW096115174 | 2007-04-27 | ||
TW096115174A TWI330437B (en) | 2007-04-27 | 2007-04-27 | Redundant power supply system |
Publications (2)
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US20080266791A1 true US20080266791A1 (en) | 2008-10-30 |
US7450383B1 US7450383B1 (en) | 2008-11-11 |
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US11/764,346 Active 2027-07-23 US7450383B1 (en) | 2007-04-27 | 2007-06-18 | Redundant power supply system |
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Also Published As
Publication number | Publication date |
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TWI330437B (en) | 2010-09-11 |
TW200843289A (en) | 2008-11-01 |
US7450383B1 (en) | 2008-11-11 |
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