WO2025214126A1 - 功率变换设备和储能设备 - Google Patents
功率变换设备和储能设备Info
- Publication number
- WO2025214126A1 WO2025214126A1 PCT/CN2025/084235 CN2025084235W WO2025214126A1 WO 2025214126 A1 WO2025214126 A1 WO 2025214126A1 CN 2025084235 W CN2025084235 W CN 2025084235W WO 2025214126 A1 WO2025214126 A1 WO 2025214126A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- channel
- sub
- partition
- air
- fan
- 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.)
- Pending
Links
Classifications
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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
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/38—Arrangements for feeding a single network from two or more generators or sources in parallel; Arrangements for feeding already energised networks from additional generators or sources in parallel
- H02J3/381—Dispersed generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- 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
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
- H05K7/20918—Forced ventilation, e.g. on heat dissipaters coupled to components the components being isolated from air flow, e.g. hollow heat sinks, wind tunnels or funnels
Definitions
- the present application relates to the technical field of heat dissipation of energy storage devices, and in particular to a power conversion device and an energy storage device.
- power conversion equipment such as string inverters utilize a split-chamber design, with higher-power electronic components located in the high-specification component area and external fans, heat exchangers, and inductors (for low-power components) located in the low-specification component area.
- the cooling system uses a single set of fans to blow refrigerant air into the chassis, with the cooling air being divided into two streams to reach the different component areas. This airflow volume is insufficient to meet current high-power and high-density demands.
- the present application provides a power conversion device and an energy storage device.
- a first channel and a second channel devices with different power and power density in the power conversion device can be partitioned, and the first channel and the second channel are set as ventilation channels connected in series.
- the cooling air entering from the air inlet can pass through the first channel and the second channel in sequence, first dissipating heat for the low-power and low-power-density devices in the first channel, and then dissipating heat for the high-power and high-power-density devices in the second channel, thereby improving the efficiency of ventilation and heat dissipation.
- the present application provides a power conversion device, comprising a housing and a first partition, wherein the housing has a first accommodating cavity therein, and the first partition divides the first accommodating cavity into a first channel and a second channel; a first component is disposed in the first channel, and a second component is disposed in the second channel;
- a first ventilation hole is provided on the first partition, and the first ventilation hole connects the first channel and the second channel.
- An air inlet and an air outlet are provided on the shell, and the air inlet, the first channel, the first ventilation hole, the second channel and the air outlet are connected in sequence to form a ventilation channel.
- This embodiment constructs two cavities, the first channel and the second channel, so that devices with different power and power density in the power conversion equipment can be divided into zones, and the first channel and the second channel are set as ventilation channels connected in series.
- the cooling air entering from the air inlet can pass through the first channel and the second channel in sequence, first dissipating heat for the low-power and low-power-density devices in the first channel, and then dissipating heat for the high-power and high-power-density devices in the second channel.
- the fans installed in the first channel and the second channel provide cooling air for the entire channel, thereby improving the efficiency of ventilation and heat dissipation.
- a second partition is provided in the first channel, the second partition divides the first channel into a first sub-channel and a second sub-channel, a second ventilation hole is provided on the second partition, the second ventilation hole connects the first sub-channel and the second sub-channel, the first ventilation hole connects the second sub-channel and the second channel, the first component is provided in at least one of the first sub-channel and the second sub-channel, the first ventilation hole and the air inlet are located on the same side in the extension direction of the first partition, and the air inlet and the air outlet are located on both sides in the extension direction of the first partition;
- the air inlet, the first sub-channel, the second ventilation hole, the second sub-channel, the first ventilation hole, the second channel and the air outlet are connected in sequence.
- the air inlet and air outlet can be located on opposite sides of the shell, with the air inlet and air outlet positions isolated to match the air outlet and air return positions of the heat exchanger on the other side, so that the heat exchanger has a larger heat exchange surface area.
- the first channel can be divided into a first sub-channel and a second sub-channel by a second partition, so that the air entering the air inlet can first circulate in the first sub-channel, then circulate from the second sub-channel to the second channel, and then circulate along the second channel to the air outlet. Similar to the first channel, the length of the second channel along the ventilation direction is greater than the width. A smaller ventilation cross-section can have a greater ventilation rate, thereby increasing the ventilation rate of the heat dissipation air to the components in the second channel.
- a first circuit board is provided in the first channel, and the first sub-channel and the second sub-channel can be stacked along the thickness direction of the first circuit board, so that when the first circuit board is located in the first sub-channel and/or the second sub-channel, the first sub-channel and the second sub-channel can form a dual-channel structure stacked along the channel height direction, and the overall size of the first channel will not be too large in any of the length, width, and height (for example, when the stacking direction of the first sub-channel and the second sub-channel is consistent with the length direction of the circuit board, the length of the first channel is twice the length of the circuit board (if the ventilation cross-sectional areas of the first sub-channel and the second sub-channel are significantly different, the ventilation rate of the two sub-channels will be reduced, and the heat dissipation efficiency will be reduced)), the length and width of the first sub-channel and the second sub-channel can be consistent with the first circuit board, and the height of the first sub-channel and the second sub-channel
- the second partition is a circuit board, or a circuit board is provided on the second partition, and a first component is provided on at least one surface of the circuit board. While separating the first channel, the second partition can also be equipped with a heat exchange device to improve space utilization within the equipment.
- a third vent is provided at one end of the first baffle extending away from the air inlet, and at least one of the first sub-channel and the second sub-channel communicates with the second channel through the third vent.
- heat dissipation demand in the second channel is low, some of the heated air in the first channel can be directly discharged through the air outlet.
- the heat dissipating air in the first channel does not need to flow entirely through the second channel, allowing a greater volume of heat dissipating air to enter the first channel, thereby increasing ventilation volume in the first channel and improving heat dissipation efficiency for components in the first channel.
- the first ventilation hole is located on the side of the first partition away from the air inlet in the extension direction, the air inlet and the air outlet are located on the same side of the extension direction of the first partition, the ventilation directions of the first channel and the second channel are opposite, and the air inlet and the air outlet can be connected to an external heat exchanger on one side of the shell.
- a fan is provided in at least one of the first channel and the second channel to input cooling air into the first channel and the second channel.
- a first fan is provided in the first channel
- a second fan is provided in the second channel
- a total air volume of the first fan is smaller than a total air volume of the second fan
- the power and power density of the second component in the second channel are greater than the power and power density of the first component in the first channel
- the number and/or the board area (the area occupied by the circuit board) of the high-power and high-power density components installed in the first channel are greater than the number and/or the board area of the low-power and low-power density components installed in the first channel
- the total air volume of the first fan is less than the total air volume of the second fan, which can meet the requirement that the heat dissipation demand in the second channel is greater than the heat dis
- a third partition is provided in the second channel, and the third partition divides the second channel into a third sub-channel and a fourth sub-channel.
- the air outlet is provided in the fourth sub-channel, and the third sub-channel is located on the side of the fourth sub-channel away from the air outlet.
- a fourth ventilation hole is provided on the third partition, and the fourth ventilation hole connects the third sub-channel and the fourth sub-channel.
- the fan in the second channel is provided in the fourth ventilation hole, and the third partition can fix the fan in the channel.
- a circuit board is installed in the second channel, and the third partition is located on at least one side of the circuit board close to the air outlet and away from the air outlet.
- a fourth partition is provided in the second channel, the fourth partition divides the second channel into a fifth sub-channel and a sixth sub-channel, and the second component is provided in the fifth sub-channel;
- the inlet ends of the fifth sub-channel and the sixth sub-channel are connected, the inlet ends of the fifth sub-channel and the sixth sub-channel are both connected to the first channel, the outflow ends of the fifth sub-channel and the sixth sub-channel are connected, and the outflow ends of the fifth sub-channel and the sixth sub-channel are both connected to the air outlet.
- the fourth partition separates the second channel into the fifth sub-channel and the sixth sub-channel
- the wind passes through the fifth sub-channel for the first time
- the wind flows from one end of the fifth sub-channel to the other end of the fifth sub-channel
- part of the wind is discharged from the first accommodating cavity from the air outlet
- the other part of the wind flows into the sixth sub-channel from the connection between the fifth sub-channel and the sixth sub-channel.
- the ventilation air volume in the fifth sub-channel can be increased, thereby improving the heat dissipation effect of the wind on the components installed in the second channel.
- a fan is provided in at least one of the fifth sub-channel and the sixth sub-channel, so that air can flow in the fifth sub-channel and the sixth sub-channel in a set wind direction.
- fans are respectively provided in the fifth sub-channel and the sixth sub-channel, and the wind direction of the fan in the fifth sub-channel is opposite to the wind direction of the fan in the sixth sub-channel, so that the fifth sub-channel and the sixth sub-channel can flow according to the set wind direction, and part of the wind in the sixth sub-channel can return to the fifth sub-channel.
- the fourth partition is a circuit board, or a circuit board is provided on the fourth partition, and the second component is provided on at least one board surface of the circuit board.
- a second component can be installed on one surface of the circuit board, and the second component can be installed in both the fifth and sixth sub-channels.
- the components in the sixth sub-channel can be mounted on the fourth partition, and the components in the fifth sub-channel can be mounted on the fourth partition or on the bottom wall of the fifth sub-channel.
- Air can flow through the fifth and sixth sub-channels, dissipating heat from the components installed in both sub-channels, thereby meeting heat dissipation requirements while improving space utilization efficiency.
- a second accommodating cavity is further provided in the shell, and the second accommodating cavity is separated from the first accommodating cavity by a fifth partition;
- a heat exchanger is disposed within the second accommodating chamber.
- the heat exchanger has an internal circulation channel that is connected to the air inlet and the air outlet, respectively.
- the heat exchanger is used to cool the medium discharged from the air outlet to provide cooling medium to the air inlet.
- the heat exchanger can be a tubular heat exchanger with fins, which cools the high-temperature medium flowing into the heat exchanger through heat exchange with the external space.
- the heat exchanger can be used in conjunction with a refrigeration device such as a compressor and a throttle valve to cool the high-temperature medium in the heat exchanger.
- the present application provides an energy storage device, comprising a battery and a power conversion device as described above, wherein the battery and the power conversion device are connected, and the power conversion device is used for power conversion of electric energy to charge and discharge the battery.
- the present application provides an energy storage device, comprising a photovoltaic panel, an AC combiner box and a power conversion device as described in any one of the above items, wherein the photovoltaic panel, the power conversion device and the AC combiner box are connected in series, and the power conversion device is used to convert the variable DC voltage of the photovoltaic panel into AC power with a mains frequency and transmit it to the AC combiner box.
- FIG1 is a schematic structural diagram of a power conversion device
- FIG2 is a top view of the internal structure of the power conversion device
- FIG3a is a schematic structural diagram of a power conversion device provided in an embodiment of the present application.
- FIG3 b is an exploded schematic diagram of a coaming, a first cover plate, and a second cover plate provided in an embodiment of the present application;
- FIG4 is a cross-sectional view of the A-A section in FIG3a;
- FIG5 is a cross-sectional view of a portion B-B in FIG3a;
- FIG6 is a cross-sectional view of a portion C-C in FIG3a;
- FIG7 is a cross-sectional view of a portion D-D in FIG3a;
- FIG8 is a schematic structural diagram of a first fan located on a side away from the air inlet provided in an embodiment of the present application;
- FIG9 is a schematic structural diagram of a second fan provided in an embodiment of the present application, located on a side away from the air outlet;
- FIG10 is a schematic structural diagram of another embodiment of the present application, wherein the first fan is located on a side away from the air inlet;
- FIG11 is a schematic structural diagram of components disposed in a second sub-channel according to an embodiment of the present application.
- FIG12 is a schematic structural diagram of an embodiment of the present application in which fans are provided in both the first channel and the second channel;
- FIG13 is a schematic structural diagram of a fifth sub-channel and a sixth sub-channel provided in an embodiment of the present application.
- FIG14 is a schematic structural diagram of components disposed in a fifth sub-channel according to an embodiment of the present application.
- FIG15 is a schematic structural diagram of a second fan located in a sixth sub-channel according to an embodiment of the present application.
- FIG16 is a schematic structural diagram of a power conversion device provided in an embodiment of the present application in which the air outlet and the air inlet are located on the same side;
- FIG17 is a schematic structural diagram of a first channel and a second channel provided in another embodiment of the present application.
- FIG18 is a schematic structural diagram of another embodiment of the present application, wherein the first fan is located on a side away from the air inlet;
- FIG19 is a schematic structural diagram of another embodiment of the present application, wherein a second fan is located on a side away from the air outlet;
- FIG20 is a schematic structural diagram of a second fan located on one side of an air outlet provided in another embodiment of the present application.
- FIG21 is a schematic structural diagram of another embodiment of the present application, wherein fans are provided in both the first channel and the second channel;
- FIG22 is a schematic structural diagram of a fifth sub-channel and a sixth sub-channel provided in another embodiment of the present application.
- FIG23 is a schematic structural diagram of a fifth sub-channel and a sixth sub-channel provided in another embodiment of the present application.
- FIG24 is a schematic structural diagram of another embodiment of the present application, wherein a second fan is located in a sixth sub-channel;
- FIG25 is a schematic diagram of the structure of the second accommodating cavity provided in an embodiment of the present application.
- FIG26 is a schematic diagram of an energy storage device provided in an embodiment of the present application.
- FIG27 is a schematic diagram of another energy storage device provided in an embodiment of the present application.
- the power equipment provided in this application may include at least one of an inverter, a power storage converter (PCS), a direct current converter (DC-DC), a charging module, an energy storage cabinet and a charging pile.
- PCS power storage converter
- DC-DC direct current converter
- An inverter is an electronic device that converts direct current (DC) power into alternating current (AC) power and is widely used in renewable energy fields such as solar and wind power generation.
- the power storage converter (PCS), direct current (DC-DC) converter, and charging module can be used as standalone devices or integrated into a storage cabinet and charging pile.
- the PCS and DC-DC converter can be installed in the storage cabinet, while the charging module can be installed in the charging pile.
- the power conversion device 10 can adopt a split-cavity design, divided into a high-specification device area 101 and a low-specification device area 102.
- the high-specification device area 101 and the low-specification device area 102 are two spaced-apart cavities, and the air supply port blows the external low-temperature heat dissipation air into the cavity.
- some inverters only supply air to the low-specification device area 102 for heat dissipation, and the high-specification device area 101 performs static heat dissipation through the cavity wall and the outside world, and the heat dissipation efficiency of the high-specification device area 101 is relatively low.
- the high-specification device area 101 and the low-specification device area 102 are two spaced-apart cavities, and the air supply port 103 blows the external low-temperature heat dissipation air into the chamber, and is divided into two parts to enter the high-specification device area 101 and the low-specification device area 102 respectively, and finally discharged through the exhaust port 104, resulting in the ventilation air volume in the high-specification device area 101 and the low-specification device area 102 being weakened, and the heat dissipation efficiency of the cooling air entering the chamber is not high, and a fan with a large air volume is required to cooperate with ventilation and heat dissipation, which is costly and correspondingly causes a large amount of heat.
- the present application provides a power conversion device 10, as shown in FIG3a, taking a string inverter structure as an example.
- the power conversion device 10 includes a housing 110 and a first partition 120.
- the housing 110 may include a panel 110a, a first cover plate 110b, and a second cover plate 110c.
- the panel 110a encloses and forms a channel extending along the Z direction.
- the first cover plate 110b can be sealed to one side of the panel 110a in the Z direction
- the second cover plate 110c can be sealed to the opposite side of the panel 110a in the Z direction.
- the panel 110a, the first cover plate 110b, and the second cover plate 110c can together enclose and form a receiving cavity.
- some structural lines are gray or dotted, indicating that these lines are inside the housing 110.
- some internal structures are shown.
- Figure 3b of this application illustrates an exploded view of a panel 110a, a first cover plate 110b, and a second cover plate 110c.
- the first cover plate 110b can be sealed to one side of the panel 110a in the Z direction, and the second cover plate 110c can be sealed to the side opposite to the Z direction.
- the first and second cover plates 110b, 110c are omitted in other figures to better illustrate the internal structure.
- the first cover plate 110b can be sealed to one side of the panel 110a in the Z direction, thereby forming a sealed containment cavity together with the panel 110a.
- a first accommodating cavity 130 may be provided within the housing 110.
- a circuit board may be installed within the first accommodating cavity 130, and electronic components, capacitors, inductors, and the like may be mounted on the circuit board.
- a first partition 120 divides the first accommodating cavity 130 into a first channel 131 and a second channel 132. Components are mounted in both the first channel 131 and the second channel 132. First components, such as capacitors and inductors with lower power and power density, may be mounted in the first channel 131, while second components, such as electronic components with higher power and power density, may be mounted in the second channel 132.
- a first ventilation hole 121 is provided between the first partition 120 and the shell 110.
- the first partition 120 is provided with a notch at one end in the opposite direction of the X direction close to the side in the Z direction.
- the notch can constitute the first ventilation hole 121, and the first ventilation hole 121 can connect the first channel 131 and the second channel 132.
- an air inlet 111 and an air outlet 112 are provided on the housing 110.
- the air inlet 111 can be provided on the cavity wall of the first channel 131, and the air outlet 112 can be provided on the cavity wall of the second channel 132.
- the air inlet 111 can be directly connected to the end of the first channel 131 in the opposite direction of the X direction, and the air outlet 112 can be directly connected to the end of the second channel 132 in the X direction.
- Both the air inlet 111 and the air outlet 112 can be located on the side of the first accommodating cavity 130 in the opposite direction of the Z direction.
- the air inlet 111, the first channel 131, the first ventilation hole 121, the second channel 132, and the air outlet 112 are connected in sequence to form a heat dissipation channel within the first accommodating cavity 130.
- a fan can be provided in the heat dissipation channel to increase the ventilation speed within the channel.
- a fan may be provided at one end of the first channel 131 near the air inlet 111, and two fans may be provided at one end of the second channel 132 near the first ventilation hole 121. The fans at the two locations are connected in series within the same heat dissipation channel.
- the cooling air blown in from the air inlet 111 first passes through the first channel 131 to dissipate heat for the components in the first channel 131 with relatively low power and power density.
- the temperature of the air after dissipation will increase to a certain extent, but it can still pass through the first ventilation hole 121 and enter the second channel 132 to dissipate heat for the components in the second channel 132 with relatively high power and power density.
- the hot air after dissipation can then pass through the air outlet 112.
- the embodiment of the present application can partition devices of different power and power density in the power conversion equipment by constructing two cavities, the first channel and the second channel, and set the first channel and the second channel as ventilation channels connected in series.
- the cooling air entering from the air inlet can pass through the first channel and the second channel in sequence, first dissipating heat for the low-power and low-power-density devices in the first channel, and then dissipating heat for the high-power and high-power-density devices in the second channel, thereby improving the efficiency of ventilation and heat dissipation.
- the low-specification device area 102 is matched with one fan, and the high-specification device area 101 is matched with two fans.
- the two channels are connected in parallel, and the fan only ventilates a single channel.
- the ventilation air volume in each channel (it should be noted that the ventilation air volume described in this embodiment refers to the air volume passing through per unit time, and the unit can be m3/s) is insufficient.
- a first channel and a second channel are connected in sequence. A fan can be set in the first channel corresponding to FIG2 , and two fans can be set in the second channel corresponding to FIG2 .
- the ventilation flux can be increased by the series design of the air ducts.
- the fan power or number can be reduced to reduce the heat dissipation cost; and the increase in the ventilation air volume improves the heat dissipation efficiency.
- the equipment volume of the power conversion equipment can be reduced accordingly, and the heat dissipation demand for current high-power and high-power density devices can also be met in a smaller accommodation cavity.
- the power conversion device 10 includes a housing 110 and a first partition 120 .
- the inner wall surface of the housing 110 encloses a first accommodating chamber 130 .
- the square housing shown in this embodiment is for illustration only, and this application does not limit the shape of the housing 110 .
- the shape of the housing 110 may be one or more of a sphere, a cylinder, a prism, or other irregular shapes.
- the housing 110 is provided with an air inlet 111 and an air outlet 112 .
- the air inlet 111 and the air outlet 112 may both be located on one side of the first accommodating chamber 130 in the opposite direction of the Z direction.
- the air inlet 111 and the air outlet 112 are arranged opposite to each other in the X direction.
- the air inlet 111 and the air outlet 112 are respectively located in the opposite direction of the X direction and on one side of the first accommodating chamber 130 in the X direction.
- the air inlet 111 and the air outlet 112 are located on opposite sides of the housing 110 .
- the first partition 120 is located inside the first accommodating cavity 130.
- the two ends of the first partition 120 along the X direction abut against the inner wall of the shell 110.
- the first partition 120 divides the first accommodating cavity 130 into a first channel 131 and a second channel 132 in the Y direction.
- Components are installed in the first channel 131 and the second channel 132.
- first components such as capacitors and inductors with lower power and power density can be installed in the first channel 131, and the first components in the first channel 131 generate less heat.
- Second components such as electronic devices with higher power and power density can be installed in the second channel 132, and the second components in the second channel 132 generate more heat.
- the air inlet 111 can be located at one end of the first channel 131 and connected to the first channel 131, and the air outlet 112 can be located at one end of the second channel 132 and connected to the second channel 132.
- the air inlet 111 can be located at one end of the first channel 131 in the opposite direction of X, and the air outlet 112 can be located at one end of the second channel 132 in the X direction. It should be noted that in other possible embodiments, the positions of the air inlet 111 and the air outlet 112 can be the same as or different from those in this embodiment.
- a first ventilation hole 121 is provided between the first partition 120 and the shell 110.
- the first ventilation hole 121 can be located at one end of the first partition 120 in the opposite direction of X, and a notch is provided at one end of the first partition 120 in the opposite direction of X to form the first ventilation hole 121.
- the first ventilation hole 121 connects the first channel 131 and the second channel 132.
- the first channel 131 and the second channel 132 can both be air ducts, and the first channel 131 and the second channel 132 are both used for air ventilation to dissipate heat from the components installed in the first channel 131 and the second channel 132.
- a second partition 1311 is provided within the first channel 131.
- the second partition 1311 can be laid within the first channel 131.
- the two side surfaces of the second partition 1311 along the thickness direction can be perpendicular to or inclined to the two side surfaces of the first partition 120 along the thickness direction.
- the second partition 1311 can separate the first channel 131 along the Z direction into a first sub-channel 131a and a second sub-channel 131b. At least one of the first sub-channel 131a and the second sub-channel 131b can be provided with low-heating components such as capacitor plates and auxiliary source plates.
- the first sub-channel 131a can be formed by the enclosure 110a of the housing 110 along the X direction, the first partition 120, the second partition 1311, and plate-like components such as capacitor plates and auxiliary source plates provided within the first sub-channel 131a.
- the second sub-channel 131b can be formed by the enclosure 110a of the shell 110 along the X direction, the first cover plate 110b of the shell 110 along the Z direction, the first partition plate 120, and the second partition plate 1311.
- the first sub-channel 131a and the second sub-channel 131b can also be air ducts. Referring to Figures 3a and 4, a second ventilation hole 123 is provided on one side of the second partition plate 1311.
- the second ventilation hole 123 is located between the first sub-channel 131a and the second sub-channel 131b.
- the first sub-channel 131a and the second sub-channel 131b are connected on one side of the X direction through the second ventilation hole 123.
- the air inlet 111, the first sub-channel 131a, the second ventilation hole 123, the second sub-channel 131b, the first ventilation hole 121, the second channel 132 and the air outlet 112 are connected in sequence to form a series air duct.
- a first fan 141 may be disposed within the first channel 131.
- the first fan 141 may be specifically located within the first sub-channel 131a.
- the first fan 141 may be located at any position within the first sub-channel 131a.
- the number of first fans 141 may be at least one.
- the first fan 141 may be located at one end of the first sub-channel 131a in the opposite direction of the X direction.
- the first fan 141 supplies air into the first sub-channel 131a in the X direction.
- the number of first fans 141 may be one.
- the length of the first channel 131 in the X direction is greater than the width of the first channel 131 in the Y direction.
- the first channel 131 and the second channel 132 are arranged along the Y direction, and the air inlet 111 is located on the side opposite the X direction of the first channel 131. This allows incoming air to circulate within the first channel 131 along the X direction.
- heat dissipation air can circulate within the first accommodating cavity 130 in the opposite Y direction.
- the heat dissipation air flows in both the first channel 131 and the second channel 132 in a direction parallel to the X direction. This allows the heat dissipation air to circulate through all components within the first channel 131, thereby increasing the ventilation volume and velocity within the first channel 131 and the second channel 132, and improving the heat dissipation efficiency of the components.
- the air inlet 111 and the air outlet 112 can be located on opposite sides of the housing 110 in the X-direction and the reverse X-direction, with the air inlet and air outlet positions isolated to match the outlet and return air positions of the heat exchanger on the other side.
- the first channel 131 can be divided into a first sub-channel 131a and a second sub-channel 131b along the Z-direction by a second partition 1311.
- a second accommodating chamber 170 is provided on the opposite side of the first accommodating chamber 130 in the Z direction.
- a heat exchanger 171 may be provided in the second accommodating chamber 170.
- the heat exchanger 171 has an internal circulation channel, and the ends of the internal circulation channel are respectively connected to the air inlet 111 and the air outlet 112.
- the heat exchanger 171 can dissipate heat from the hot air exhausted from the first accommodating chamber 130.
- the air inlet 111 and the air outlet 112 may be located on either side of the first accommodating chamber 130 in the X direction and the opposite X direction.
- the corresponding heat exchanger 171 may span the second accommodating chamber 170 and extend along the X direction, perpendicular to the Y direction of the air flow (see the four arrows in FIG25 ). This allows the heat exchanger 171 to have a larger heat exchange area, thereby improving the heat dissipation of the high-temperature gas within the heat exchanger 171 and the heat dissipation efficiency of the components within the first accommodating chamber 130.
- a second fan 142 may be disposed within the second channel 132.
- the second fan 142 may be located anywhere within the second channel 132, and the number of second fans 142 may be at least one.
- a third partition 150 is disposed within the second channel 132.
- the two side surfaces of the third partition 150 along the thickness direction may be perpendicular to or inclined relative to the two side surfaces of the first partition 120 along the thickness direction.
- the third partition 150 may separate the second channel 132 into a third sub-channel 1321 and a fourth sub-channel 1322 along the X-direction.
- the third sub-channel 1321 is located on a side of the fourth sub-channel 1322 facing away from the air outlet 112.
- the third sub-channel 1321 and the air outlet 112 are disposed opposite each other at opposite ends of the fourth sub-channel 1322 in the direction in which it extends.
- the second channel 132 is a third sub-channel 1321 on the side of the third partition plate 150 along the opposite direction of X
- the second channel 132 is a fourth sub-channel 1322 on the side of the third partition plate 150 along the X direction.
- the air outlet 112 is arranged in the fourth sub-channel 1322
- the third sub-channel 1321 is located on the side of the fourth sub-channel 1322 away from the air outlet 112.
- the first sub-channel 131a, the second sub-channel 131b, the third sub-channel 1321 and the fourth sub-channel 1322 are connected in sequence.
- a fourth ventilation hole 1501 is provided on the third partition plate 150.
- the fourth ventilation hole 1501 penetrates the third partition plate 150 along the thickness direction of the third partition plate 150.
- the fourth ventilation hole 1501 connects the third sub-channel 1321 and the fourth sub-channel 1322.
- the fan in the second channel 132 is arranged in the fourth ventilation hole 1501.
- the number of the fourth ventilation hole 1501 is at least one, and the second fan 142 is installed in the fourth ventilation hole 1501.
- the second fan 142 is located at one end of the second channel 132 in the opposite direction of X. There may be two second fans 142.
- the second fan 142 blows air into the second channel 132 in the X direction.
- the total air volume of the first fan 141 is less than the total air volume of the second fan 142.
- the total air volume of the first fan 141 being less than the total air volume of the second fan 142 may include various situations, for example, the wind speeds of the first fan 141 and the second fan 142 are the same, and the number of the first fans 141 is less than the number of the second fans 142; for another example, the number of the first fans 141 and the second fans 142 are the same, and the wind speed of the first fan 141 is less than the wind speed of the second fan 142; for another example, both the wind speed and the number of the first fan 141 are less than the wind speed and the number of the second fans 142, and so on.
- the spatial volume of the first channel 131 is smaller than the spatial volume of the second channel 132, the number of high-power and high-power density devices installed in the second channel 132 and/or the board area (the area occupied by the circuit board) is greater than the number of low-power and low-power density devices installed in the first channel 131 and/or the board area, and the total air volume of the first fan 141 is smaller than the total air volume of the second fan 142, which can meet the requirement that the heat dissipation demand in the second channel 132 is greater than the heat dissipation demand in the first channel 131.
- the air inlet 111 can be located at one end of the first channel 131 in the direction opposite to the X direction, and the air outlet 112 can be located at one end of the second channel 132 in the direction opposite to the X direction. All air within the first accommodating chamber 130 is discharged through the air outlet 112. Referring to Figures 3a and 4 , the air delivered by the air inlet 111 and the first fan 141 is transmitted within the first channel 131 in the direction of the solid arrows in Figure 4 .
- the air delivered by the air inlet 111 and the first fan 141 flows within the first sub-channel 131a in the X direction, flows from the connection between the first sub-channel 131a and the second sub-channel 131b to the second sub-channel 131b, and then flows within the second sub-channel 131b in the direction opposite to the X direction.
- the second sub-channel 131b flows through the first ventilation hole 121 into the second channel 132.
- the wind flowing in from the second sub-channel 131b is transmitted to the second fan 142, and flows in the second channel 132 along the X direction through the second fan 142, and can eventually flow out from the air outlet 112, thereby achieving heat dissipation for the components installed in the first channel 131 and the second channel 132.
- the air inlet 111, the first sub-channel 131a, the second sub-channel 131b, the first ventilation hole 121, the second channel 132 and the air outlet 112 are connected in sequence to form a series of air ducts. After passing through the first sub-channel 131a with low heat dissipation requirements, the wind enters the second channel 132 through the second sub-channel 131b and the first ventilation hole 121.
- This not only increases the total air volume inside the second channel 132 and improves the heat dissipation capacity, but also the wind that has undergone heat exchange with the first sub-channel 131a with low heat dissipation requirements can continue to dissipate heat for the components in the second channel 132 in the second channel 132, thereby achieving multi-level effective utilization of wind and improving heat dissipation efficiency. Furthermore, the present application also provides different air volumes according to the different heat dissipation requirements of the components in the first channel 131 and the second channel 132 , thereby reducing the heat dissipation cost.
- the air inlet 111 and the air outlet 112 can be located on both sides of the housing 110 in the positive and negative directions along the X-direction, respectively.
- the air inlet 111 is located at one end of the first sub-channel 131a in the negative direction of the X-direction
- the air outlet 112 is located at one end of the second channel 132 in the X-direction.
- the first channel 131 is divided by a second partition 1311 into a first sub-channel 131a and a second sub-channel 131b arranged in the Z-direction.
- One end of the first sub-channel 131a in the X-direction is connected to one end of the second sub-channel 131b in the X-direction.
- a first fan 141 may be provided within the first sub-channel 131a.
- the first fan 141 is located on one side of the first sub-channel 131a along the X-direction.
- the first fan 141 may cover the air outlet on the X-direction side of the first sub-channel 131a, and the first fan 141 may deliver air in the positive X-direction.
- the first fan 141 may cover the air outlet on the X-direction side of the second sub-channel 131b, and the first fan 141 may draw air in the opposite X-direction.
- the first fan 141 is located on one side of the first sub-channel 131a along the X-direction. Providing a fan at a bend in the wind direction can increase the turning rate and pressure head of the wind, and provide wind relay at the bend to increase the air circulation rate within the first sub-channel 131a.
- No fan 140 is provided in the second channel 132. After the air enters the first accommodating chamber 130 from the air inlet 111, it can flow along the X direction in the first sub-channel 131a, and then be accelerated and turned by the first fan 141. After turning, it flows to the second sub-channel 131b connected to the first sub-channel 131a, and flows in the opposite X direction in the second sub-channel 131b. Then, it passes through the first ventilation hole 121 and enters the second channel 132. It flows along the X direction in the second channel 132 to the air outlet 112 and is discharged from the first accommodating chamber 130.
- the air inlet 111 and the air outlet 112 are located on the positive and negative sides of the housing 110 along the X-direction, respectively.
- the air inlet 111 is located at one end of the first sub-channel 131a in the negative X-direction
- the air outlet 112 is located at one end of the second channel 132 in the X-direction.
- the first channel 131 is divided by a second partition 1311 into a first sub-channel 131a and a second sub-channel 131b arranged in the Z-direction.
- One end of the first sub-channel 131a in the X-direction is connected to one end of the second sub-channel 131b in the X-direction.
- the fan 140 may not be provided in the first sub-channel 131a, but two second fans 142 may be provided in the second channel 132. Both second fans 142 are located on one side of the second channel 132 in the X-direction, and the two second fans 142 can blow air in the X-direction.
- Two second fans 142 are located on one side of the second channel 132 along the X-direction, with the second fan 142 positioned near the air outlet 112.
- the second fan 142 can blow the cooling air directly out of the air outlet 112, creating a relatively negative pressure within the first accommodating chamber 130. This increases the air flow rate within the second channel 132 and improves heat dissipation.
- the air After entering the first accommodating chamber 130 through the air inlet 111, the air flows along the X-direction within the first sub-channel 131a. It then flows to the second sub-channel 131b, which is connected to the first sub-channel 131a, and flows in the opposite X-direction within the second sub-channel 131b.
- the air then passes through the first ventilation hole 121 and enters the second channel 132. Within the second channel 132, it flows along the X-direction to the air outlet 112 and exits the first accommodating chamber 130.
- the air inlet 111 and the air outlet 112 are located on the positive and negative sides of the housing 110 along the X-direction, respectively.
- the air inlet 111 is located at one end of the first sub-channel 131a in the negative X-direction
- the air outlet 112 is located at one end of the second channel 132 in the X-direction.
- the first channel 131 is divided by a second partition 1311 into a first sub-channel 131a and a second sub-channel 131b arranged in the Z-direction.
- One end of the first sub-channel 131a in the X-direction is connected to one end of the second sub-channel 131b in the X-direction.
- a first fan 141 can be provided in the first sub-channel 131a.
- the first fan 141 can be arranged horizontally.
- the air outlet direction of the first fan 141 can be set along the Z direction.
- the first sub-channel 131a and the second sub-channel 131b are arranged in a stacked manner along the Z direction.
- the air outlet direction of the first fan 141 is consistent with the distribution direction of the first sub-channel 131a and the second sub-channel 131b.
- a fan that discharges air in the Z direction is provided at the connecting bend of the first sub-channel 131a and the second sub-channel 131b, which helps to improve the circulation effect of air from the first sub-channel 131a to the second sub-channel 131b, thereby improving the heat dissipation efficiency.
- the fan 140 may not be provided in the second channel 132. After the air enters the first accommodating chamber 130 from the air inlet 111, it can flow in the first sub-channel 131a along the X direction, then flow to the second sub-channel 131b connected to the first sub-channel 131a and flow in the opposite X direction in the second sub-channel 131b, then pass through the first ventilation hole 121 into the second channel 132, flow in the second channel 132 along the X direction to the air outlet 112 and be discharged from the first accommodating chamber 130.
- the air inlet 111 and the air outlet 112 are located on the positive and negative sides of the housing 110 along the X-direction, respectively.
- the air inlet 111 is located at one end of the first sub-channel 131a in the negative X-direction
- the air outlet 112 is located at one end of the second channel 132 in the X-direction.
- the first channel 131 is divided by a second partition 1311 into a first sub-channel 131a and a second sub-channel 131b arranged in the Z-direction.
- One end of the first sub-channel 131a in the X-direction is connected to one end of the second sub-channel 131b in the X-direction.
- the second partition 1311 can be a circuit board, or a circuit board can be provided on the second partition 1311, and components can be provided on at least one surface of the circuit board.
- components can be provided on one surface of the circuit board facing the Z direction, and components can be provided in both the first sub-channel 131a and the second sub-channel 131b.
- the components in the second sub-channel 131b can be installed on the second partition 1311, and the components in the first sub-channel 131a can be installed on the side opposite to the Z direction of the second partition 1311, or on the bottom wall of the side opposite to the Z direction of the first sub-channel 131a.
- Air can flow in the first sub-channel 131a and the second sub-channel 131b, dissipating heat from the components provided in both the first sub-channel 131a and the second sub-channel 131b, thereby meeting heat dissipation requirements while improving space utilization efficiency.
- a first fan 141 may be provided in the first sub-channel 131a.
- the first fan 141 is located on one side of the first sub-channel 131a in the direction opposite to the X direction, and the first fan 141 can blow air in the direction X.
- Two second fans 142 may be provided in the second channel 132. Both second fans 142 are located on one side of the second channel 132 in the direction opposite to the X direction, and the two second fans 142 can blow air in the direction X.
- the air inlet 111 and the air outlet 112 are located on the positive and negative sides of the housing 110 along the X-direction, respectively.
- the air inlet 111 is located at the negative end of the first sub-channel 131a in the X-direction, and the air outlet 112 is located at the X-direction end of the second channel 132.
- a third ventilation hole 122 is formed between the end of the first baffle 120 facing away from the air inlet 111 and the housing 110.
- the end of the first baffle 120 along the X-direction may not abut against the enclosure 110a of the housing 110 along the X-direction to form the third ventilation hole 122.
- the end of the first baffle 120 along the X-direction may abut against the enclosure 110a of the housing 110 along the X-direction, and a through-hole is formed on the end of the first baffle 120 along the X-direction, extending through the thickness of the first baffle 120 to form the third ventilation hole 122, and so on.
- the first channel 131 is divided into a first sub-channel 131a and a second sub-channel 131b arranged in the Z direction by a second partition plate 1311.
- the third ventilation hole 122 is respectively connected to one end of the first sub-channel 131a, the second sub-channel 131b, and the second channel 132 in the X direction.
- One end of the first sub-channel 131a in the X direction is connected to one end of the second sub-channel 131b in the X direction.
- a first fan 141 may be provided in the first sub-channel 131a.
- the first fan 141 may be located on a side of the first sub-channel 131a in the direction opposite to the X direction.
- the first fan 141 may blow air in the direction X.
- Two second fans 142 may be provided in the second channel 132. Both second fans 142 may be located on a side of the second channel 132 in the direction opposite to the X direction.
- the two second fans 142 may blow air in the direction X. After the air enters the first accommodating chamber 130 from the air inlet 111, it flows in the first sub-channel 131a along the X direction.
- the air After the air reaches one end of the first sub-channel 131a along the X direction, part of the air flows to the second sub-channel 131b connected to the first sub-channel 131a and flows in the opposite X direction in the second sub-channel 131b. Then, it passes through the first ventilation hole 121 and enters the second channel 132. It flows in the second channel 132 along the X direction to the air outlet 112 and is discharged from the first accommodating chamber 130. Another part of the air flows directly from the third ventilation hole 122 to one end of the second channel 132 along the X direction and then flows to the air outlet 112 to be discharged from the first accommodating chamber 130.
- the heat dissipation demand in the second channel 132 is not high, part of the heated air in the first channel 131 can be directly discharged from the air outlet 112.
- the heat dissipation air in the first channel 131 does not need to flow through the second channel 132.
- a larger amount of heat dissipation air can enter the first channel 131 to increase the ventilation volume of the first channel 131 and improve the heat dissipation efficiency of the components in the first channel 131.
- the air inlet 111 and the air outlet 112 are located on the positive and negative sides of the housing 110 along the X-direction, respectively.
- the air inlet 111 is located at one end of the first sub-channel 131a in the negative X-direction
- the air outlet 112 is located at one end of the second channel 132 in the X-direction.
- the first channel 131 is divided by a second partition 1311 into a first sub-channel 131a and a second sub-channel 131b arranged in the Z-direction.
- One end of the first sub-channel 131a in the X-direction is connected to one end of the second sub-channel 131b in the X-direction.
- a first fan 141 may be disposed within the first sub-channel 131a.
- the first fan 141 is located on one side of the first sub-channel 131a in the negative X-direction and can deliver air in the X-direction.
- a fourth partition plate 160 is provided in the second channel 132.
- the two side surfaces of the fourth partition plate 160 along the thickness direction can be parallel to the two side surfaces of the second partition plate 1311 along the thickness direction, or can be inclined at a certain angle.
- the fourth partition plate 160 can be the same height as or different from the second partition plate 1311 in the Z direction.
- the fourth partition plate 160 separates the second channel 132 into a fifth sub-channel 1323 and a sixth sub-channel 1324 along the Z direction.
- the fifth sub-channel 1323 is located on the Z-opposite side of the sixth sub-channel 1324.
- One end of the fifth sub-channel 1323 in the X direction is connected to one end of the sixth sub-channel 1324 in the X direction, and both are connected to the air outlet 112.
- a third partition 150 may be provided in the second channel 132.
- the third partition 150 may be located at one end of the fifth sub-channel 1323 along the opposite direction of X.
- the third partition 150 may separate the fifth sub-channel 1323 into two spaces in the positive direction and the opposite direction of the X direction.
- Two fourth ventilation holes 1501 may be provided on the third partition 150.
- the two fourth ventilation holes 1501 are respectively used to install two second fans 142.
- the two second fans 142 are both located on one side of the fifth sub-channel 1323 along the opposite direction of X.
- the two second fans 142 can supply air in the X direction.
- the ends of the fifth sub-channel 1323 and the sixth sub-channel 1324 in the opposite direction of X are both connected to the first channel 131 , and the ends of the fifth sub-channel 1323 and the sixth sub-channel 1324 in the X direction are connected and are both connected to the air outlet 112 .
- the air After entering the first accommodating chamber 130 through the air inlet 111, the air flows along the X-direction within the first sub-channel 131a. It then flows to the second sub-channel 131b connected to the first sub-channel 131a and flows in the opposite X-direction within the second sub-channel 131b. It then passes through the first ventilation hole 121 and enters the fifth sub-channel 1323. A portion of the air flowing in the X-direction within the fifth sub-channel 1323 enters the sixth sub-channel 1324, flows in the opposite X-direction within the sixth sub-channel 1324, and the remaining portion of the air flows to one end of the fifth sub-channel 1323 along the X-direction before exiting the first accommodating chamber 130 through the air outlet 112.
- the structure of the power conversion device 10 in this embodiment is similar to that of the power conversion device 10 in FIG13 .
- the fourth partition 160 may be a circuit board, or a circuit board may be disposed on the fourth partition 160, with components disposed on at least one surface of the circuit board.
- the circuit board may have components disposed on a surface facing the positive Z direction. Components are disposed in both the fifth subchannel 1323 and the sixth subchannel 1324.
- the components in the sixth subchannel 1324 may be mounted on the fourth partition 160, while the components in the fifth subchannel 1323 may be mounted on the anti-Z side of the fourth partition 160 or on the bottom wall of the anti-Z side of the fifth subchannel 1323.
- Air can flow through the fifth subchannel 1323 and the sixth subchannel 1324, dissipating heat from the components disposed in both subchannels 1323 and 1324, thereby meeting heat dissipation requirements while improving space utilization efficiency.
- the structure of the power conversion device 10 in this embodiment is similar to that of the power conversion device 10 in FIG13 .
- both second fans 142 are located within the sixth sub-channel 1324 and may be located at one end of the sixth sub-channel 1324 in the direction opposite to the X direction.
- Part of the wind flowing along the X direction in the sixth sub-channel 1324 enters the fifth sub-channel 1323, flows along the opposite X direction in the fifth sub-channel 1323 and flows back to the sixth sub-channel 1324; the other part of the wind can be directly discharged from the first accommodating chamber 130 from the air outlet 112 after flowing to one end of the sixth sub-channel 1324 along the X direction.
- a power conversion device 10 includes a housing 110 and a first partition 120.
- the inner wall surface of the housing 110 encloses a first accommodating cavity 130.
- the housing 110 is provided with an air inlet 111 and an air outlet 112.
- the air inlet 111 and the air outlet 112 can both be located on one side of the first accommodating cavity 130 in the opposite Z direction, and the air inlet 111 and the air outlet 112 are located on the same side of the first accommodating cavity 130.
- the first partition 120 is located inside the first accommodating cavity 130.
- the two ends of the first partition 120 along the X direction abut against the inner wall of the shell 110.
- the first partition 120 divides the first accommodating cavity 130 into a first channel 131 and a second channel 132 in the Y direction.
- Components are installed in the first channel 131 and the second channel 132. Among them, capacitors and inductors with lower power and power density can be installed in the first channel 131, and the components in the first channel 131 generate less heat. Electronic devices with higher power and power density can be installed in the second channel 132, and the components in the second channel 132 generate more heat.
- the air inlet 111 can be located at one end of the first channel 131 and connected to the first channel 131, and the air outlet 112 can be located at one end of the second channel 132 and connected to the second channel 132.
- the air inlet 111 and the air outlet 112 may both be located at one end of the first channel 131 along the opposite direction of the X direction. It should be noted that in other possible embodiments, the positions of the air inlet 111 and the air outlet 112 may be the same as or different from those in this embodiment. For example, the air inlet 111 and the air outlet 112 may both be located at one end of the first channel 131 along the X direction.
- a first ventilation hole 121 is defined between the first partition 120 and the housing 110.
- the first ventilation hole 121 can be located at one end of the first partition 120 along the X-direction.
- a notch is provided at one end of the first partition 120 along the X-direction to form the first ventilation hole 121.
- the first ventilation hole 121 connects the first channel 131 and the second channel 132.
- the first channel 131 and the second channel 132 can both serve as air ducts, and both are used for ventilation to dissipate heat from components installed within the first channel 131 and the second channel 132.
- a first fan 141 may be disposed within the first channel 131.
- the first fan 141 may be located at any position within the first channel 131, and the number of first fans 141 may be at least one.
- the first fan 141 may be located at one end of the first channel 131 in the opposite direction of the X direction.
- the first fan 141 supplies air into the first channel 131 in the X direction.
- the number of first fans 141 may be one.
- a second fan 142 may be disposed within the second channel 132.
- the second fan 142 may be located anywhere within the second channel 132, and the number of second fans 142 may be at least one.
- a third partition 150 is disposed within the second channel 132.
- the two side surfaces of the third partition 150 along the thickness direction may be perpendicular to or inclined relative to the two side surfaces of the first partition 120 along the thickness direction.
- the third partition 150 may separate the second channel 132 into a third sub-channel 1321 and a fourth sub-channel 1322 along the X-direction.
- the air outlet 112 is disposed within the fourth sub-channel 1322.
- the third sub-channel 1321 is located on a side of the fourth sub-channel 1322 facing away from the air outlet 112.
- the third sub-channel 1321 and the air outlet 112 are disposed opposite each other at opposite ends of the fourth sub-channel 1322 in the direction in which it extends.
- the second channel 132 is provided on one side of the third partition 150 along the X-direction as a third sub-channel 1321, and on the other side of the third partition 150 along the opposite X-direction as a fourth sub-channel 1322.
- the first channel 131, third sub-channel 1321, and fourth sub-channel 1322 are sequentially connected.
- a fourth ventilation hole 1501 may be provided on the third partition 150.
- the fourth ventilation hole 1501 extends through the thickness of the third partition 150, connecting the third sub-channel 1321 and the fourth sub-channel 1322.
- a fan in the second channel 132 is located within the fourth ventilation hole 1501. There may be at least one fourth ventilation hole 1501, and a second fan 142 is installed within the fourth ventilation hole 1501.
- the second fan 142 may be located at one end of the second channel 132 along the X-direction. There may be two second fans 142.
- the second fan 142 supplies air into the second channel 132 in the opposite X-direction.
- the total air volume of the first fan 141 is less than the total air volume of the second fan 142.
- the total air volume of the first fan 141 being less than the total air volume of the second fan 142 may include various situations, for example, the wind speeds of the first fan 141 and the second fan 142 are the same, and the number of the first fans 141 is less than the number of the second fans 142; for another example, the number of the first fans 141 and the second fans 142 are the same, and the wind speed of the first fan 141 is less than the wind speed of the second fan 142; for another example, both the wind speed and the number of the first fan 141 are less than the wind speed and the number of the second fans 142, and so on.
- the air inlet 111 and the air outlet 112 can both be located at one end of the first channel 131 in the opposite direction of X, and the air in the first accommodating chamber 130 is discharged from the air outlet 112.
- the air sent out by the air inlet 111 and the first fan 141 is transmitted in the first channel 131 in the direction of the solid arrow in FIG16 .
- the air sent out by the air inlet 111 and the first fan 141 flows in the first channel 131 in the X direction, and is transmitted to the second fan 142 through the first ventilation hole 121.
- the air flows in the second channel 132 in the opposite direction of X through the second fan 142, and finally flows out from the air outlet 112, thereby achieving heat dissipation for the components installed in the first channel 131 and the second channel 132.
- the air inlet 111, the first channel 131, the first ventilation hole 121, the second channel 132, and the air outlet 112 are sequentially connected to form a series of air ducts. After passing through the first channel 131 with a low heat dissipation requirement, the air enters the second channel 132 through the first ventilation hole 121.
- This not only increases the total air volume within the second channel 132 and improves the heat dissipation capacity, but also the air that has undergone heat exchange with the first channel 131 with a low heat dissipation requirement can continue to dissipate heat for the components within the second channel 132 within the second channel 132, thus achieving multi-level effective utilization of air and improving heat dissipation efficiency.
- the present application also provides different air volumes based on the different heat dissipation requirements of the components within the first channel 131 and the second channel 132, thereby reducing heat dissipation costs.
- the air inlet 111 and the air outlet 112 can be located on the same side of the housing 110 in the direction opposite to X.
- a first fan 141 can be disposed within the first channel 131 and can be located on a side of the first channel 131 in the direction opposite to X.
- the first fan 141 can cover the air inlet opening on the side of the first channel 131 in the direction opposite to X, and the first fan 141 can deliver air in the direction X.
- the fan 140 may not be provided in the second channel 132. After the air enters the first accommodating chamber 130 from the air inlet 111, it can flow along the X direction in the first channel 131, turn around, pass through the first ventilation hole 121 and enter the second channel 132, and then flow in the opposite X direction in the second channel 132 to the air outlet 112 and be discharged from the first accommodating chamber 130.
- the air inlet 111 and the air outlet 112 can be located on the same side of the housing 110 in the opposite direction of the X direction.
- a first fan 141 can be disposed within the first channel 131 and can be located on one side of the first channel 131 in the X direction. In one embodiment, the first fan 141 can cover the air outlet opening on one side of the first channel 131 in the X direction. The first fan 141 can deliver air in the X direction. Providing a fan at a bend in the wind direction can increase the wind's turning rate, thereby increasing the air circulation rate within the first accommodating chamber 130.
- the fan 140 may not be provided in the second channel 132. After the air enters the first accommodating chamber 130 from the air inlet 111, it can flow along the X direction in the first channel 131, turn around, pass through the first ventilation hole 121 and enter the second channel 132, and then flow in the opposite X direction in the second channel 132 to the air outlet 112 and be discharged from the first accommodating chamber 130.
- the air inlet 111 and the air outlet 112 can be located on the same side of the housing 110 in the opposite direction X, and the first fan 141 can be omitted from the first channel 131.
- a second fan 142 can be provided in the second channel 132.
- Two second fans 142 can be connected in parallel within the second channel 132, and the second fan 142 can be located on one side of the second channel 132 in the direction X.
- the first fan 141 can deliver air in the opposite direction X.
- the second fan 142 is provided at the wind direction bend where the first channel 131 connects to the second channel 132. This can increase the wind's turning speed, thereby increasing the air circulation rate within the first accommodating chamber 130.
- the air After the air enters the first accommodating chamber 130 from the air inlet 111, it can flow along the X direction in the first channel 131, turn and enter the second channel 132 through the first ventilation hole 121, and flow in the opposite X direction in the second channel 132 to the air outlet 112 and discharge from the first accommodating chamber 130.
- the air inlet 111 and the air outlet 112 can be located on the same side of the housing 110 in the direction opposite to the X direction, and the first fan 141 can be omitted from the first channel 131.
- a second fan 142 can be provided in the second channel 132. Two second fans 142 can be connected in parallel within the second channel 132. The second fan 142 can be located on one side of the second channel 132 in the direction opposite to the X direction. In one embodiment, the second fan 142 can deliver air in the direction opposite to the X direction.
- the air After the air enters the first accommodating chamber 130 from the air inlet 111, it can flow along the X direction in the first channel 131, turn and enter the second channel 132 through the first ventilation hole 121, and flow in the opposite X direction in the second channel 132 to the air outlet 112 and discharge from the first accommodating chamber 130.
- the air inlet 111 and the air outlet 112 can be located on the same side of the housing 110 in the direction opposite to X.
- a first fan 141 can be disposed within the first channel 131 and can be located on a side of the first channel 131 in the direction opposite to X.
- the first fan 141 can cover the air inlet opening on the side of the first channel 131 in the direction opposite to X, and the first fan 141 can deliver air in the direction X.
- a second fan 142 may be disposed within the second channel 132. Two second fans 142 may be connected in parallel within the second channel 132. The second fan 142 may be located on one side of the second channel 132 along the X-direction. In one embodiment, the second fan 142 may deliver air in the opposite X-direction. The second fan 142 is disposed at the wind direction bend where the first channel 131 connects to the second channel 132. This, combined with the first fan 141 delivering air into the first accommodating chamber 130 at the air inlet 111, can increase the wind's turning rate, thereby increasing the air circulation rate within the first accommodating chamber 130.
- the air After the air enters the first accommodating chamber 130 from the air inlet 111, it can flow along the X direction in the first channel 131, turn and enter the second channel 132 through the first ventilation hole 121, and flow in the opposite X direction in the second channel 132 to the air outlet 112 and discharge from the first accommodating chamber 130.
- the air inlet 111 and the air outlet 112 can be located on the same side of the housing 110 in the direction opposite to X.
- a first fan 141 can be disposed within the first channel 131 and can be located on a side of the first channel 131 in the direction opposite to X.
- the first fan 141 can cover the air inlet opening on the side of the first channel 131 in the direction opposite to X, and the first fan 141 can deliver air in the direction X.
- a second fan 142 may be disposed within the second channel 132. Two second fans 142 may be connected in parallel within the second channel 132. The second fan 142 may be located on one side of the second channel 132 along the X-direction. In one embodiment, the second fan 142 may deliver air in the opposite X-direction. The second fan 142 is disposed at the wind direction bend where the first channel 131 connects to the second channel 132. This, combined with the first fan 141 delivering air into the first accommodating chamber 130 at the air inlet 111, can increase the wind's turning rate, thereby increasing the air circulation rate within the first accommodating chamber 130.
- a fourth partition 160 is disposed within the second channel 132.
- the two side surfaces of the fourth partition 160 along the thickness direction can be parallel to or inclined at a certain angle to the two side surfaces of the second partition 1311 along the thickness direction.
- the fourth partition 160 divides the second channel 132 into a fifth sub-channel 1323 and a sixth sub-channel 1324 along the Z direction.
- the fifth sub-channel 1323 is located on the opposite Z side of the sixth sub-channel 1324.
- One end of the fifth sub-channel 1323 in the X direction is connected to one end of the sixth sub-channel 1324 in the X direction, and both are connected to the air outlet 112.
- a third partition 150 may be provided in the second channel 132.
- the third partition 150 may be located at one end of the fifth sub-channel 1323 along the X direction.
- the third partition 150 may separate the fifth sub-channel 1323 into two spaces in the positive direction and the reverse direction of the X direction.
- Two fourth ventilation holes 1501 may be provided on the third partition 150.
- the two fourth ventilation holes 1501 are respectively used to install two second fans 142.
- the two second fans 142 are both located on one side of the fifth sub-channel 1323 along the X direction.
- the two second fans 142 can supply air in the reverse direction of the X direction.
- One end of the fifth sub-channel 1323 and the sixth sub-channel 1324 in the X direction is connected to the first channel 131 ; one end of the fifth sub-channel 1323 and the sixth sub-channel 1324 in the opposite X direction is connected and is connected to the air outlet 112 .
- the air After entering the first accommodating chamber 130 through the air inlet 111, the air flows along the X-direction within the first channel 131, then passes through the first ventilation hole 121 and enters the fifth sub-channel 1323. A portion of the air flowing in the opposite X-direction within the fifth sub-channel 1323 turns and enters the sixth sub-channel 1324, where it flows along the X-direction. The remaining portion of the air flows to one end of the fifth sub-channel 1323 in the opposite X-direction and then exits the first accommodating chamber 130 through the air outlet 112.
- the structure of the power conversion device 10 in this embodiment is similar to that of the power conversion device 10 in FIG22 .
- the fourth partition 160 may be a circuit board, or a circuit board may be disposed on the fourth partition 160, with components disposed on at least one surface of the circuit board.
- the circuit board may have components disposed on a surface facing the positive Z direction. Components are disposed in both the fifth subchannel 1323 and the sixth subchannel 1324.
- the components in the sixth subchannel 1324 may be mounted on the fourth partition 160, while the components in the fifth subchannel 1323 may be mounted on the negative Z direction side of the fourth partition 160 or on the bottom wall of the negative Z direction side of the fifth subchannel 1323.
- Air can flow through the fifth and sixth subchannels 1323, 1324, dissipating heat from the components disposed in both subchannels 1323 and 1324, thereby meeting heat dissipation requirements while improving space utilization efficiency.
- both second fans 142 are located within the sixth sub-channel 1324, and may be located at one end of the sixth sub-channel 1324 along the X-direction. After entering the first accommodating chamber 130 through the air inlet 111, air flows along the X-direction within the first channel 131, then passes through the first ventilation holes 121 and enters the sixth sub-channel 1324.
- a portion of the air flowing in the opposite X-direction within the sixth sub-channel 1324 bends in the opposite Z-direction and enters the fifth sub-channel 1323, where it flows along the X-direction and returns to the sixth sub-channel 1324.
- the remaining portion, after reaching the opposite X-direction end of the sixth sub-channel 1324, can be directly discharged from the first accommodating chamber 130 through the air outlet 112.
- the housing 110 has a second accommodating cavity 170 on the side opposite to the Z direction.
- the second accommodating cavity 170 may be located on the side opposite to the Z direction of the first accommodating cavity 130.
- the first accommodating cavity 130 and the second accommodating cavity 170 may be separated by a fifth partition 172 .
- the fifth partition 172 extends along the XY plane to separate the accommodating cavity within the housing 110 into the first accommodating cavity 130 and the second accommodating cavity 170.
- the air inlet 111 and the air outlet 112 of the first accommodating chamber 130 can both be located on the fifth partition 172, and both the air inlet 111 and the air outlet 112 can be connected to the second accommodating chamber 170.
- the second accommodating chamber 170 can be a ventilation duct, with a third fan 173 disposed on the side opposite to the Y direction.
- the number of third fans 173 can be at least one, and four third fans 173 are used as an example in this embodiment.
- the third fan 173 can blow air into the second accommodating chamber 170.
- a heat exchanger 171 can be disposed within the second accommodating chamber 170.
- the heat exchanger 171 can have an internal circulation channel, and the circulation channel is connected to the air inlet 111 and the air outlet 112, respectively.
- the hot air discharged from the air outlet 112 can enter the internal channel of the heat exchanger 171, exchange heat with the external space through the heat exchanger 171, and the cooled gas can return to the first accommodating chamber 130 through the air inlet 111.
- the internal channel of the heat exchanger 171 and the first accommodating chamber 130 are interconnected.
- the first accommodating chamber 130 can be a relatively sealed chamber to protect the components installed therein.
- Figure 25 illustrates only one structure of the second accommodating chamber 170 corresponding to Figure 3a.
- the air inlet 111 and the air outlet 112 can be located on either side of the first accommodating chamber 130 in the X direction and the anti-X direction.
- the heat exchanger 171 can span the second accommodating chamber 170 and extend along the X direction, which is perpendicular to the Y direction of the air flow (see the four arrows in Figure 25). This allows the heat exchanger 171 to have a larger heat exchange area, improve the heat dissipation of the high-temperature gas in the heat exchanger 171, and enhance the heat dissipation efficiency of the components in the first accommodating chamber 130.
- the present application also provides an energy storage device, including the power conversion device 10 provided in any of the above embodiments, as shown in Figure 26, and can also include a photovoltaic panel 21, an AC junction box 22 and a string inverter 25.
- the string inverter 25 can be the power conversion device 10 described in any of the above embodiments, connected between the photovoltaic panel 21 and the AC junction box 22.
- the string inverter can convert the variable DC voltage of the photovoltaic panel 21 into AC power at the mains frequency, and transmit it to the AC junction box 22, and then transmit it to the power grid 24 through the box transformer 23, thereby realizing the conversion of light energy into usable electrical energy.
- the converted AC power can also be fed back to the commercial power transmission system.
- the string inverter 25 is one of the important system balances (BOS) in the photovoltaic array system and can be used in conjunction with general AC-powered equipment.
- BOS system balances
- the string inverter, the AC combiner box 22, the box transformer 23 and the power grid 24 are connected in series, and the string inverter 25, the AC combiner box 22 and the box transformer 23 can be connected through an AC cable.
- the power conversion device 10 can also be used for power conversion of electrical energy to charge and discharge a battery, and the battery and the power conversion device 10 are connected.
- the energy storage device can be an energy storage cabinet, and the energy storage converter (PCS), direct current converter (DC-DC) and charging module can be independent devices or integrated in the energy storage cabinet and charging pile.
- the energy storage converter (PCS) and direct current converter (DC-DC) can be set in the energy storage cabinet, and the charging module can be set in the charging pile.
- the battery can be a battery pack.
- the energy storage cabinet 30 includes a cabinet body 310, a battery pack 320 and an energy storage converter 330.
- the energy storage converter can be the power conversion device described in any of the above embodiments. It is a bidirectional current controllable conversion device connecting the energy storage battery and the power grid (or load). It can control the charging and discharging process of the battery, perform AC-DC conversion, and accurately and quickly adjust the voltage, frequency and power between the power grid and the energy storage system to achieve constant power and constant current charging and discharging and smooth fluctuating power output.
- the cabinet 310 has a storage space, and the battery pack 320 and the energy storage converter 330 are both located in the cabinet 310.
- a DC converter and a power distribution module may also be provided in the energy storage cabinet, and these devices may also constitute the power conversion equipment in the energy storage cabinet.
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Abstract
功率变换设备和储能设备,涉及储能设备散热技术领域,包括壳体和第一隔板,壳体内具有第一容纳腔,第一隔板将第一容纳腔分隔成第一通道和第二通道;第一通道内设置有第一元器件,第二通道内设置有第二元器件;第一隔板上设置有第一通风孔,第一通风孔连通第一通道和第二通道,壳体上设置有进风口和出风口,进风口、第一通道、第一通风孔、第二通道和出风口依次连通,以形成通风通道。本申请通过构造第一通道和第二通道两个腔体,可以将功率变换设备中不同功率以及功率密度的器件进行分区,并将第一通道和第二通道设置成串联的通风通道,依次为第一通道和第二通道内的元器件进行散热,提高了通风散热的效率。
Description
本申请要求在2024年04月07日提交中国国家知识产权局、申请号为202410411679.7、发明名称为“功率变换设备和储能设备”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及储能设备散热技术领域,特别涉及一种功率变换设备和储能设备。
随着新能源行业的发展,功率转换等设备的功率不断提升,其内部器件的功耗也不断增大。随着逆变器的功率和功率密度等越来越大,逆变器机箱内部在板器件、单板通流和线缆等发热量和热耗密度也越来越大,而电解电容等热敏感器件都在机箱内部,机箱内部温升直接决定着这些器件寿命,从而影响逆变器的寿命和失效率。
目前,组串式逆变器等功率变换设备可采用分腔设计,功率较高的电子器件位于高规格器件区域,外部风扇、换热器和电感(低功率器件)等位于低规格器件区域。而散热系统是同一组风扇向机箱内吹入冷媒风,冷却风分成两部分以分别进入到不同规格的器件区域,散热风量难以满足目前高功率和高功率密度的需求。
本申请提供一种功率变换设备和储能设备,通过构造第一通道和第二通道两个腔体,可以将功率变换设备中不同功率以及功率密度的器件进行分区,并将第一通道和第二通道设置成串联的通风通道,从进风口进入的冷却风可以依次经过第一通道和第二通道,先为第一通道内低功率和低功率密度的器件进行散热,再为第二通道内高功率和高功率密度的器件进行散热,提高了通风散热的效率。
第一方面,本申请提供一种功率变换设备,包括壳体和第一隔板,所述壳体内具有第一容纳腔,所述第一隔板将所述第一容纳腔分隔成第一通道和第二通道;所述第一通道内设置有第一元器件,所述第二通道内设置有第二元器件;
所述第一隔板上设置有第一通风孔,所述第一通风孔连通所述第一通道和所述第二通道,所述壳体上设置有进风口和出风口,所述进风口、所述第一通道、所述第一通风孔、所述第二通道和所述出风口依次连通,以形成通风通道。
本实施例通过构造第一通道和第二通道两个腔体,可以将功率变换设备中不同功率以及功率密度的器件进行分区,并将第一通道和第二通道设置成串联的通风通道,从进风口进入的冷却风可以依次经过第一通道和第二通道,先为第一通道内低功率和低功率密度的器件进行散热,再为第二通道内高功率和高功率密度的器件进行散热,第一通道和第二通道内安装的风扇均为整个通道提供冷却风,提高了通风散热的效率。
一种可能的实现方式中,所述第一通道内设置有第二隔板,所述第二隔板将所述第一通道分隔为第一子通道和第二子通道,所述第二隔板上设置有第二通风孔,所述第二通风孔连通所述第一子通道和第二子通道,所述第一通风孔连接所述第二子通道和所述第二通道,所述第一元器件设置在所述第一子通道和所述第二子通道中的至少一个通道内,所述第一通风孔和所述进风口位于所述第一隔板延伸方向上的同一侧,所述进风口和所述出风口位于所述第一隔板延伸方向上的两侧;
所述进风口、所述第一子通道、所述第二通风孔、所述第二子通道、所述第一通风孔、所述第二通道和所述出风口依次连通。
本实施例中,进风口和出风口可以位于壳体的相背两侧,进风位置和出风位置相隔离,以匹配另一侧换热器的出气和回气位置,以使得换热器具有较大的换热表面积。并且,在该实施例中,通过第二隔板可以将第一通道分隔为第一子通道和第二子通道,使得进风口进入的风可以先在第一子通道中流通,再从第二子通道流通至第二通道,并沿第二通道流通至出风口中排出。与第一通道相类似,第二通道沿通风方向的长度要大于宽度,更小的通风截面能够具有更大的通风速率,提高散热风对第二通道内器件的通风速率。
一种可能的实现方式中,第一通道内设置有第一电路板,第一子通道和第二子通道可以延第一电路板的厚度方向层叠,以使得第一电路板位于第一子通道和/或第二子通道内时,第一子通道和第二子通道可以形成沿通道高度方向层叠的双通道结构,第一通道的整体尺寸不会出现长宽高中某一尺寸过大(例如第一子通道和第二子通道的层叠方向和电路板的长度方向一致时,第一通道的长度为电路板长度的两倍(若第一子通道和第二子通道的通风截面积有明显差异,则会造成两个子通道的通风速率降低,散热效率降低)),第一子通道和第二子通道的长度和宽度均可以和第一电路板相一致,第一子通道和第二子通道的高度和第一电路板上安装器件的高度相关,不会造成第一子通道和第二子通道形成较大的高度,以形成长宽高较为均衡的第一通道。
一种可能的实现方式中,所述第二隔板为电路板,或者所述第二隔板上设置有电路板,所述电路板的至少一个板面上设置有第一元器件,第二隔板在分隔第一通道的同时,还能够装配带换热器件,提高设备内的空间利用率。
一种可能的实现方式中,所述第一隔板在延伸方向上背离所述进风口的一端设置有第三通风孔,所述第一子通道和所述第二子通道中的至少一个通过所述第三通风孔与所述第二通道连通。在第二通道内散热需求不高时,第一通道升温后的风可以部分从出风口直接排出,第一通道内的散热风不需要全部流通第二通道,第一通道可以进入更大风量的散热风,以提高第一通道的通风风量,提高对第一通道内器件的散热效率。
一种可能的实现方式中,所述第一通风孔位于所述第一隔板在延伸方向上背离所述进风口的一侧,所述进风口和所述出风口位于所述第一隔板延伸方向上的同侧,所述第一通道和所述第二通道的通风方向相反,进风口和出风口可以在壳体的一侧连接外部的换热器。
一种可能的实现方式中,所述第一通道和所述第二通道中的至少一个内设置有风扇,以向第一通道和第二通道内输入冷却风。
一种可能的实现方式中,所述第一通道内设置有第一风扇,所述第二通道内设置有第二风扇,所述第一风扇的总风量小于所述第二风扇的总风量。
本实施例中,在第一通道的空间体积小于第二通道的空间体积时,和/或在第二通道中器件散热需求量高于第一通道中器件散热需求量较大程度时(第一通道和第二通道在相同的通风截面和通风速率下,可满足第一通道内第一元器件的散热需求而不满足第二通道内第二元器件的散热需求),比如第二通道中第二元器件的功率和功率密度大于第一通道中第一元器件的功率和功率密度,第一通道中安装的高功率和高功率密度器件的数量和/或占板面积(占据电路板的面积)大于第一通道中安装的低功率和低功率密度器件的数量和/或占板面积,第一风扇的总风量小于第二风扇的总风量,能够满足第二通道内散热需求量大于第一通道内散热需求量的要求,并满足第二通道内较高的散热需求量。
一种可能的实现方式中,所述第二通道内设置有第三隔板,所述第三隔板将所述第二通道分隔为第三子通道和第四子通道,所述出风口设置于所述第四子通道内,所述第三子通道位于所述第四子通道背离所述出风口的一侧,所述第三隔板上设置有第四通风孔,所述第四通风孔连通所述第三子通道和所述第四子通道,所述第二通道中的风扇设置在所述第四通风孔内,第三隔板可以将风扇固定在通道内。
一种可能的实现方式中,所述第二通道中安装有电路板,所述第三隔板位于所述电路板靠近所述出风口和远离所述出风口中的至少一侧。
一种可能的实现方式中,所述第二通道内设置有第四隔板,所述第四隔板将所述第二通道分隔为第五子通道和第六子通道,所述第二元器件设置于所述第五子通道内;
所述第五子通道和所述第六子通道的入流端相连通,所述第五子通道和所述第六子通道的入流端均和所述第一通道连通,所述第五子通道和所述第六子通道的出流端相连通,所述第五子通道的出流端和所述第六子通道的出流端均和所述出风口相连通。
本实施例中,当风流动到第二通道的一侧时,由于第四隔板将第二通道分隔为第五子通道和第六子通道,在风第一次经过第五子通道时,风从第五子通道的一端流动到第五子通道的另一端时,一部分风从出风口排出第一容纳腔,另一部分风从第五子通道与第六子通道的连通处流入第六子通道,风再次经过第五子通道时可以增加第五子通道内的通风风量,从而提高了风对第二通道内安装的元器件的散热效果。
一种可能的实现方式中,所述第五子通道和所述第六子通道中的至少一个通道内设置有风扇,以使得第五子通道和第六子通道内可以按照设定的风向流动。
一种可能的实现方式中,所述第五子通道和所述第六子通道内分别设置有风扇,所述第五子通道内风扇的风向和所述第六子通道内风扇的风向相反,以使得第五子通道和第六子通道内可以按照设定的风向流动,第六子通道的部分风可以返回到第五子通道。
一种可能的实现方式中,所述第四隔板为电路板,或者所述第四隔板上设置有电路板,所述电路板的至少一个板面上设置有所述第二元器件。
本实施例中,电路板可以在其中一个板面上设置有第二元器件,第五子通道和第六子通道内可以都设有第二元器件,第六子通道内的元器件可以安装在第四隔板上,第五子通道内的元器件可以安装在第四隔板上,也可以安装在第五子通道的底壁上。风可以在第五子通道和第六子通道内流动,对第五子通道和第六子通道内设置元器件均散热,能够在满足散热需求的同时,提高空间利用效率。
一种可能的实现方式中,所述壳体内还设置有第二容纳腔,所述第二容纳腔和所述第一容纳腔之间通过第五隔板相分隔;
所述第二容纳腔内设置有换热器,所述换热器具有内部循环通道,内部循环通道分别与所述进风口和所述出风口连通,所述换热器用于对所述出风口排出的介质进行降温,以向所述进风口提供冷却介质。其中,换热器可以为具有散热翅片的管式换热器,通过和外部空间的热交换,将流通至换热器的高温介质进行降温;或者,换热器也可以配合压缩机和节流阀等制冷装置将换热器的高温介质进行降温。
第二方面,本申请提供一种储能设备,包括电池和上述任一项所述的功率变换设备,所述电池和所述功率变换设备连接,所述功率变换设备用于电能的功率转换,以对所述电池进行充放电。
第三方面,本申请提供一种储能设备,包括光伏板、交流汇流箱和上述任一项所述的功率变换设备,所述光伏板、所述功率变换设备和所述交流汇流箱串联,所述功率变换设备用于将所述光伏板的可变直流电压转变为市电频率交流电,并传输至所述交流汇流箱。
图1是功率变换设备的结构示意图;
图2是功率变换设备内部结构的俯视图;
图3a是本申请实施方式提供的功率变换设备的结构示意图;
图3b是本申请实施方式提供的一种围板、第一盖板和第二盖板的爆炸示意图;
图4是图3a中A-A处的剖视图;
图5是图3a中B-B处的剖视图;
图6是图3a中C-C处的剖视图;
图7是图3a中D-D处的剖视图;
图8是本申请实施方式提供的第一风扇位于背离进风口一侧的结构示意图;
图9是本申请实施方式提供的第二风扇位于背离出风口一侧的结构示意图;
图10是本申请另一种实施方式提供的第一风扇位于背离进风口一侧的结构示意图;
图11是本申请实施方式提供的第二子通道内设置元器件的结构示意图;
图12是本申请实施方式提供的第一通道和第二通道均设置风扇的结构示意图;
图13是本申请实施方式提供的第五子通道和第六子通道的结构示意图;
图14是本申请实施方式提供的第五子通道内设置元器件的结构示意图;
图15是本申请实施方式提供的第二风扇位于第六子通道的结构示意图;
图16是本申请实施方式提供的出风口与进风口位于同一侧的功率变换设备的结构示意图;
图17是本申请另一种实施方式提供的第一通道和第二通道结构示意图;
图18是本申请另一种实施方式提供的第一风扇位于背离进风口一侧的结构示意图;
图19是本申请另一种实施方式提供的第二风扇位于背离出风口一侧的结构示意图;
图20是本申请另一种实施方式提供的第二风扇位于出风口一侧的结构示意图;
图21是本申请另一种实施方式提供的第一通道和第二通道均设置风扇的结构示意图;
图22是本申请另一种实施方式提供的第五子通道和第六子通道的结构示意图;
图23是本申请另一种实施方式提供的第五子通道和第六子通道的结构示意图;
图24是本申请另一种实施方式提供的第二风扇位于第六子通道内的结构示意图;
图25是本申请实施方式提供的第二容纳腔内的结构示意图;
图26是本申请实施方式提供的一种储能设备的示意图;
图27是本申请实施方式提供的另一种储能设备的示意图。
附图标记
10-功率变换设备;110-壳体;110a-围板;110b-第一盖板;110c-第二盖板;111-进风口;112-出风
口;120-第一隔板;121-第一通风孔;122-第三通风孔;130-第一容纳腔;131-第一通道;131a-第一子通道;131b-第二子通道;1311-第二隔板;132-第二通道;1321-第三子通道;1322-第四子通道;1323-第五子通道;1324-第六子通道;140-风扇;141-第一风扇;142-第二风扇;150-第三隔板;1501-第四通风孔;160-第四隔板;170-第二容纳腔;171-换热器;
21-光伏板;22-交流汇流箱;23-箱变;24-电网;25-组串式逆变器;
30-储能柜;310-柜体;320-电池组;330-储能变流器。
10-功率变换设备;110-壳体;110a-围板;110b-第一盖板;110c-第二盖板;111-进风口;112-出风
口;120-第一隔板;121-第一通风孔;122-第三通风孔;130-第一容纳腔;131-第一通道;131a-第一子通道;131b-第二子通道;1311-第二隔板;132-第二通道;1321-第三子通道;1322-第四子通道;1323-第五子通道;1324-第六子通道;140-风扇;141-第一风扇;142-第二风扇;150-第三隔板;1501-第四通风孔;160-第四隔板;170-第二容纳腔;171-换热器;
21-光伏板;22-交流汇流箱;23-箱变;24-电网;25-组串式逆变器;
30-储能柜;310-柜体;320-电池组;330-储能变流器。
下面结合本申请实施例中的附图对本申请实施例进行描述。
为方便理解,下面先对本申请实施例所涉及的英文简写和有关技术术语进行解释和描述。
应当明确,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例,都属于本申请保护的范围。
在本申请实施例中使用的术语是仅仅出于描述特定实施例的目的,而非旨在限制本申请。在本申请实施例和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式,除非上下文清楚地表示其他含义。
应当理解,本文中使用的术语“和/或”仅仅是一种描述关联对象的相同的字段,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
取决于语境,如在此所使用的词语“如果”可以被解释成为“在......时”或“当......时”或“响应于确定”或“响应于检测”。类似地,取决于语境,短语“如果确定”或“如果检测(陈述的条件或事件)”可以被解释成为“当确定时”或“响应于确定”或“当检测(陈述的条件或事件)时”或“响应于检测(陈述的条件或事件)”。
应理解,本申请中使用的“第一”、“第二”等仅用于区分描述的目的,而不能理解为指示或暗示相对重要性,也不能理解为指示或暗示顺序。
在本申请的描述中,术语“中心”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本申请和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本申请的限制。
本申请使用的“在...范围内”,除单独指出了不包含端值的情况下,默认包含该范围的两端端值,例如在1至5范围内,包含1和5两个数值。
在本申请的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如可以是固定连接,也可以是可拆卸连接,还可以是抵触连接或一体的连接;对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本申请中的具体含义。
本申请所提供的功率设备,可以包括逆变器、储能变流器(PCS)、直流变换器(DC-DC)、充电模块、储能柜和充电桩的至少一种。
其中,逆变器是一种将直流(DC)电源转换为交流(AC)电源的电子设备,它被广泛应用于太阳能发电和风力发电等可再生能源领域。储能变流器(PCS)、直流变换器(DC-DC)和充电模块可以作为独立设备,也可以集成在储能柜和充电桩中,储能柜中可以设置储能变流器(PCS)和直流变换器(DC-DC),充电桩内可以设置充电模块。
本申请以功率变换设备10为逆变器为例,参阅图1和图2所示,功率变换设备10可以采用分腔设计,分成高规格器件区域101和低规格器件区域102。在一种实施例中,其中高规格器件区域101和低规格器件区域102为相间隔的两个腔体,送风口将外部的低温散热风吹入腔室内。在一些逆变器中,参阅图1所示,部分逆变器只对低规格器件区域102送风散热,高规格器件区域101通过腔壁面和外界进行静态散热,高规格器件区域101的散热效率较低。在一些逆变器中,参阅图2所示,高规格器件区域101和低规格器件区域102为相间隔的两个腔体,送风口103将外部的低温散热风吹入腔室内,并分为两部分以分别进入到高规格器件区域101和低规格器件区域102中,并最终通过排风口104排出,导致高规格器件区域101和低规格器件区域102中的通风风量减弱,进入腔室的冷却风散热效率不高,需要大风量的风扇以配合通风散热,成本高,相应的造成也较大。
为了解决上述问题,本申请提供一种功率变换设备10,参阅图3a所示,以组串式逆变器结构为例。功率变换设备10包括壳体110和第一隔板120。参阅图3b所示,壳体110可以包括围板110a、第一盖板110b和第二盖板110c。围板110a围合形成一沿Z方向贯穿的通道,第一盖板110b可以密封连接在围板110a的Z方向一侧,第二盖板110c可以密封连接在围板110a的Z反方向一侧,围板110a、第一盖板110b和第二盖板110c可以共同围合形成一容纳腔。需要说明的是,诸如图3a等附图中,部分结构线条为灰色或虚线,表示该部分线条处于壳体110的内部,为了更清楚的显示壳体110内通道、开口和隔板等结构以显示出了部分内部结构。
需要说明的是,本申请中附图3b示例了一种围板110a、第一盖板110b和第二盖板110c的爆炸示意图,第一盖板110b可以密封连接在围板110a的Z方向一侧,第二盖板110c可以密封连接在围板110a的Z反方向一侧。在其他附图中为了更好的体现内部结构,省略了第一盖板110b和第二盖板110c。第一盖板110b可以密封连接在围板110a的Z方向一侧以和围板110a共同围合形成一密闭容纳腔。
在一种实施例中,参阅图3a、图5、图6、图7和图8所示,壳体110内可以设置有第一容纳腔130,第一容纳腔130内可以安装电路板,电路板上可以安装电子器件、电容和电感等器件。第一隔板120将第一容纳腔130分隔成第一通道131和第二通道132,第一通道131和第二通道132内均安装有元器件;其中,第一通道131内可以安装功率和功率密度更低的电容和电感等第一元器件,第二通道132内可以安装功率和功率密度更高的电子器件等第二元器件。
在一种实施例中,第一隔板120和壳体110之间具有第一通风孔121,参阅图3a和图5所示,第一隔板120在X反方向的一端靠近Z方向一侧设置有一缺口,该缺口可以构成第一通风孔121,第一通风孔121可以连通第一通道131和第二通道132。
在一种实施例中,壳体110上设置有进风口111和出风口112。参阅图3a所示,进风口111可以设置在第一通道131的腔壁上,出风口112可以设置在第二通道132的腔壁上。进风口111可以和第一通道131的X反方向一端直接连通,出风口112可以和第二通道132的X方向一端直接连通,进风口111和出风口112均可以位于第一容纳腔130的Z反方向一侧。进风口111、第一通道131、第一通风孔121、第二通道132和出风口112依次连通,以形成第一容纳腔130内的散热通道。在一种实施例中,该散热通道内可以设置风扇以提高通道内的通风速度。在一种实施例中,第一通道131在靠近进风口111的一端可以设置一个风扇,第二通道132在靠近第一通风孔121的一端可以设置两个风扇,两个位置的风扇串联在同一个散热通道内。进风口111吹入的冷却风先经过第一通道131,为第一通道131内功率和功率密度相对不高的器件进行散热,散热后的风温度会有一定程度的上升,但依旧能够穿过第一通风孔121进入到第二通道132内,为第二通道132内功率和功率密度相对较高的器件进行散热,散热后的热风可通过出风口112。
本申请实施例通过构造第一通道和第二通道两个腔体,可以将功率变换设备中不同功率以及功率密度的器件进行分区,并将第一通道和第二通道设置成串联的通风通道,从进风口进入的冷却风可以依次经过第一通道和第二通道,先为第一通道内低功率和低功率密度的器件进行散热,再为第二通道内高功率和高功率密度的器件进行散热,提高了通风散热的效率。
图2所示的通风结构,低规格器件区域102匹配1个风扇,高规格器件区域101匹配2个风扇,两个通道采用并联的方式,风扇只为单个通道通风,每个通道内的通风风量(需要说明的是,本实施例所述的通风风量是指在单位时间内通过的风量,单位可以为m3/s)不足。本申请实施例通过设置依次连通的第一通道和第二通道,第一通道内可以对应图2设置一个风扇,第二通道内可以对应图2设置两个风扇,三个风扇同时为串联的第一通道和第二通道散热,提高了每个通道内的通风风量。想比于如图2等散热结构,通过风道的串联设计可以提高通风通量,在满足散热需求时可以减小风扇功率或数量,以降低散热成本;以及,通风风量的增大提高了散热效率,在满足散热需求时可以相应减小功率变换设备的设备体积,在更小的容纳腔内也可以满足对目前高功率和高功率密度器件散热的需求。
在一种实施例中,参阅图3a所示,功率变换设备10包括壳体110和第一隔板120,壳体110的内壁面围合形成第一容纳腔130。可以理解的,本实施例中示出的方形壳体仅为示意,本申请并不对壳体110的形状做出限定,在一些其他的实施例中,壳体110的形状还可以是球形、圆柱体和棱柱体等中的一种或多种,也可以是其他非规则的形状。壳体110上设置有进风口111和出风口112,进风口111和出风口112可以均位于第一容纳腔130沿Z反方向的一侧,进风口111和出风口112在X方向上相对设置,进风口111和出风口112分别位于第一容纳腔130的X反方向和X方向一侧,进风口111和出风口112位于壳体110的相对两侧。
第一隔板120位于第一容纳腔130内部,第一隔板120沿X方向的两端与壳体110的内壁相抵接,第一隔板120将第一容纳腔130在Y方向上分隔为第一通道131和第二通道132。第一通道131和第二通道132内均安装有元器件,其中,第一通道131内可以安装功率和功率密度更低的电容和电感等第一元器件,第一通道131内的第一元器件发热量较低。第二通道132内可以安装功率和功率密度更高的电子器件等第二元器件,第二通道132内的第二元器件发热量较高。进风口111可以位于第一通道131的一端并与第一通道131相连通,出风口112可以位于第二通道132的一端并与第二通道132相连通。
在本实施例中,进风口111可以位于第一通道131沿X反方向的一端,出风口112可以位于第二通道132沿X方向的一端。需要说明的是,在其他的可能的实施例中,进风口111和出风口112的位置可以与本实施例相同也可以与本实施例不同。第一隔板120和壳体110之间具有第一通风孔121,第一通风孔121可以位于第一隔板120沿X反方向的一端,在第一隔板120沿X反方向的一端设置缺口以形成第一通风孔121。第一通风孔121连通第一通道131和第二通道132。第一通道131和第二通道132可以均为风道,第一通道131和第二通道132均用于流通风,以对第一通道131和第二通道132内安装的元器件进行散热。
第一通道131内设置有第二隔板1311,第二隔板1311可以铺设在第一通道131内部,第二隔板1311沿厚度方向(与图3a中的Z方向一致)的两个侧面与第一隔板120沿厚度方向的两个侧面可以相垂直,也可以相倾斜。第二隔板1311可以将第一通道131沿Z方向分隔为第一子通道131a和第二子通道131b,第一子通道131a和第二子通道131b中的至少一个内部可以设置有电容板和辅源板等发热量较低的元器件,第一子通道131a可以由壳体110沿X方向的围板110a、第一隔板120、第二隔板1311和第一子通道131a内设置的电容板和辅源板等板状器件围合形成。第二子通道131b可以由壳体110沿X方向的围板110a、壳体110沿Z方向的第一盖板110b、第一隔板120和第二隔板1311围合形成。第一子通道131a和第二子通道131b也可以均为风道。参阅图3a和图4所示,第二隔板1311的一侧设置有第二通风孔123,第二通风孔123位于第一子通道131a和第二子通道131b之间,第一子通道131a和第二子通道131b在X方向的一侧通过第二通风孔123连通,进风口111、第一子通道131a、第二通风孔123、第二子通道131b、第一通风孔121、第二通道132和出风口112依次连通形成串联风道。
第一通道131内可以设置有第一风扇141,第一风扇141可以具体位于第一子通道131a内,第一风扇141可以位于第一子通道131a内的任意位置,第一风扇141的数量可以为至少一个。本实施例中,第一风扇141可以位于第一子通道131a沿X反方向的一端,第一风扇141朝向X方向为第一子通道131a内送风,第一风扇141的数量可以为一个。
在一种实施例中,参阅图3a所示,第一通道131在X方向的长度要大于第一通道131在Y方向的宽度,第一通道131和第二通道132沿Y方向排布,而进风口111位于第一通道131的X方向的反方向一侧,进入的风可以在第一通道131内沿X方向流通。相较于在第一通道131的Y方向一侧设置进风口111,并在第一隔板120的中部位置设置通孔以向第二通道132中出风,甚至于在第二通道132的Y反方向一侧设置出风口112,散热风可以在第一容纳腔130中沿Y反方向流通的散热方案中;本实施例散热风在第一通道131和第二通道132中的流通方向均与X方向相平行,散热风可以流通第一通道131内的全部器件,并能够提高第一通道131和第二通道132内的通风风量和通风速率,提高对器件的散热效率。
在一种实施例中,进风口111和出风口112可以位于壳体110的X方向和X反方向的相背两侧,进风位置和出风位置相隔离,以匹配另一侧换热器的出气和回气位置。并且,在该实施例中,通过第二隔板1311可以将第一通道131沿Z方向分隔为第一子通道131a和第二子通道131b,使得进风口111进入的风可以先在第一子通道131a中沿X方向流通,再从第二子通道131b中沿X反方向流通至第二通道132的X反方向一侧,并沿第二通道132的X方向流通至出风口112中排出。与第一通道131相类似,第二通道132的X方向长度要大于Y方向的宽度,更小的通风截面能够具有更大的通风速率,提高散热风对第二通道132内器件的通风速率。并且,参阅图25所示,第一容纳腔130的Z方向的反方向一侧具有第二容纳腔170,第二容纳腔170可以设置换热器171,换热器171具有内部循环通道,并且该内部循环通道的两端分别与进风口111和出风口112连通,换热器171可以为第一容纳腔130排出的热风进行散热。参阅图3a和图25所示,进风口111和出风口112可以位于第一容纳腔130的X方向和X反方向的两侧,对应的换热器171可以横跨在第二容纳腔170内,并沿X方向沿伸,这与Y方向的吹风(参阅图25中的四条箭头线条指向)方向相垂直,以使得换热器171具有较大的换热面积,提高对换热器171内高温气体的散热,提高对第一容纳腔130内器件的散热效率。
第二通道132内可以设置有第二风扇142,第二风扇142可以位于第二通道132内的任意位置,第二风扇142的数量可以为至少一个。本实施例中,第二通道132内设置有第三隔板150,第三隔板150沿厚度方向的两个侧面可以与第一隔板120沿厚度方向的两个侧面相垂直或相倾斜,第三隔板150可以将第二通道132分隔为沿X方向的第三子通道1321和第四子通道1322,第三子通道1321位于第四子通道1322背离出风口112的一侧,第三子通道1321和出风口112分别在第四子通道1322延伸方向的两端相对设置。本实施例中,第二通道132在第三隔板150沿X反方向的一侧为第三子通道1321,第二通道132在第三隔板150沿X方向的一侧为第四子通道1322,出风口112设置于第四子通道1322内,第三子通道1321位于第四子通道1322背离出风口112的一侧,第一子通道131a、第二子通道131b、第三子通道1321和第四子通道1322依次连通,第三隔板150上设置有第四通风孔1501,第四通风孔1501沿第三隔板150的厚度方向贯穿第三隔板150,第四通风孔1501连通第三子通道1321和第四子通道1322,第二通道132中的风扇设置在第四通风孔1501内,第四通风孔1501的数量为至少一个,第四通风孔1501内安装有第二风扇142。第二风扇142位于第二通道132沿X反方向一端,第二风扇142的数量可以为两个。第二风扇142朝向X方向为第二通道132内送风。
在一种实施例中,第一风扇141的总风量小于第二风扇142的总风量。第一风扇141的总风量小于第二风扇142的总风量可以包含多种情况,例如,第一风扇141和第二风扇142的风速相同,第一风扇141的数量小于第二风扇142的数量;又如,第一风扇141的数量和第二风扇142的数量相同,第一风扇141的风速小于第二风扇142的风速;再如,第一风扇141的风速和数量均小于第二风扇142的风速和数量,等等。在一种实施例中,第一通道131的空间体积要小于第二通道132的空间体积,第二通道132中安装的高功率和高功率密度器件的数量和/或占板面积(占据电路板的面积)要大于第一通道131中安装的低功率和低功率密度器件的数量和/或占板面积,第一风扇141的总风量小于第二风扇142的总风量,能够满足第二通道132内散热需求量大于第一通道131内散热需求量的要求。
进风口111可以位于第一通道131沿X反方向的一端,出风口112可以位于第二通道132沿X方向的一端,第一容纳腔130内的风均从出风口112排出。参阅图3a和图4所示,进风口111和第一风扇141送出的风在第一通道131内沿图4中的实线箭头方向传输,具体地,进风口111和第一风扇141送出的风在第一子通道131a内沿X方向流动,由第一子通道131a和第二子通道131b的连通处流向第二子通道131b并在第二子通道131b内沿X反方向流动。第二子通道131b在X反方向一侧通过第一通风孔121流入第二通道132内。由第二子通道131b流入的风传输至第二风扇142处,并通过第二风扇142在第二通道132内沿X方向流动,最终可以从出风口112流出,以此实现对第一通道131和第二通道132内安装的元器件的散热。本申请中,进风口111、第一子通道131a、第二子通道131b、第一通风孔121、第二通道132和出风口112依次连通形成串联的风道,风经过低散热需求的第一子通道131a后通过第二子通道131b和第一通风孔121进入第二通道132,不仅提高了第二通道132内部的总风量,提升了散热能力,而且与低散热需求的第一子通道131a进行热交换的风在第二通道132内能够继续为第二通道132内的元器件进行散热,实现了风的多级有效利用,提高了散热效率。并且,本申请还依据第一通道131和第二通道132内元器件的不同散热需求提供不同的风量,降低了散热成本。
在一种实施例中,参阅图8所示,进风口111和出风口112可以分别位于壳体110沿X方向的正方向和反方向两侧,进风口111位于第一子通道131a在X反方向的一端,出风口112位于第二通道132在X方向的一端。第一通道131被第二隔板1311分隔为在Z方向上排布的第一子通道131a和第二子通道131b,第一子通道131a沿X方向的一端和第二子通道131b沿X方向的一端相连通。
第一子通道131a内可以设置有一个第一风扇141,第一风扇141位于第一子通道131a沿X方向的一侧。在一种实施例中,第一风扇141可以覆盖第一子通道131a在X方向一侧的出风口,第一风扇141可以朝向X方向正方向送风;在一种实施例中,第一风扇141可以覆盖在第二子通道131b在X方向一侧的出风口,第一风扇141可以朝X反方向一侧抽风。第一风扇141位于第一子通道131a沿X方向的一侧,在风向拐弯处设置风扇,可以提高风的拐弯速率和压头,在转弯处进行风力接力,以提高风在第一子通道131a内的流通速率。
第二通道132内不设置风扇140,风从进风口111进入第一容纳腔130内后可以在第一子通道131a内沿X方向流动,然后通过第一风扇141加速以转向,转向后流向与第一子通道131a连通的第二子通道131b,并在第二子通道131b内沿X反方向流动,接着经过第一通风孔121进入第二通道132内,在第二通道132内沿X方向流动至出风口112排出第一容纳腔130。
在一种实施例中,参阅图9所示,进风口111和出风口112分别位于壳体110沿X方向的正方向和反方向两侧,进风口111位于第一子通道131a在X反方向的一端,出风口112位于第二通道132在X方向的一端。第一通道131被第二隔板1311分隔为在Z方向上排布的第一子通道131a和第二子通道131b,第一子通道131a沿X方向的一端和第二子通道131b沿X方向的一端相连通。第一子通道131a内可以不设置风扇140,第二通道132内可以设置有两个第二风扇142,两个第二风扇142均位于第二通道132沿X方向的一侧,两个第二风扇142可以朝向X方向送风。
两个第二风扇142均位于第二通道132沿X方向的一侧,在靠近出风口112的位置第二风扇142,第二风扇142可以直接将散热风吹出出风口112,第一容纳腔130内可以处于较大的负压状态,以提高风在第二通道132内的流通速率,提高散热能力。风从进风口111进入第一容纳腔130内后在第一子通道131a内沿X方向流动,然后流向与第一子通道131a连通的第二子通道131b并在第二子通道131b内沿X反方向流动,接着经过第一通风孔121进入第二通道132内,在第二通道132内沿X方向流动至出风口112排出第一容纳腔130。
在一种实施例中,参阅图10所示,进风口111和出风口112分别位于壳体110沿X方向的正方向和反方向两侧,进风口111位于第一子通道131a在X反方向的一端,出风口112位于第二通道132在X方向的一端。第一通道131被第二隔板1311分隔为在Z方向上排布的第一子通道131a和第二子通道131b,第一子通道131a沿X方向的一端和第二子通道131b沿X方向的一端相连通。
第一子通道131a内可以设置有一个第一风扇141,第一风扇141可以水平设置,第一风扇141的出风方向可以沿Z方向设置,第一子通道131a和第二子通道131b沿Z方向层叠排布设置,第一风扇141的出风方向与第一子通道131a和第二子通道131b的分布方向保持一致,在第一子通道131a和第二子通道131b的连通拐弯处设置向Z方向出风的风扇,有助于提高风从第一子通道131a向第二子通道131b的流通效果,从而提高散热效率。
第二通道132内可以不设置风扇140,风从进风口111进入第一容纳腔130内后可以在第一子通道131a内沿X方向流动,然后流向与第一子通道131a连通的第二子通道131b并在第二子通道131b内沿X反方向流动,接着经过第一通风孔121进入第二通道132内,在第二通道132内沿X方向流动至出风口112排出第一容纳腔130。
在一种实施例中,参阅图11所示,进风口111和出风口112分别位于壳体110沿X方向的正方向和反方向两侧,进风口111位于第一子通道131a在X反方向的一端,出风口112位于第二通道132在X方向的一端。第一通道131被第二隔板1311分隔为在Z方向上排布的第一子通道131a和第二子通道131b,第一子通道131a沿X方向的一端和第二子通道131b沿X方向的一端相连通。
第二隔板1311可以为电路板,或者第二隔板1311上设置有电路板,电路板的至少一个板面上设置有元器件。本实施例中,该电路板朝向Z方向的一个板面上设置有元器件,第一子通道131a和第二子通道131b内均设有元器件,第二子通道131b中的元器件可以安装在第二隔板1311上,第一子通道131a中的元器件可以安装在第二隔板1311的Z反方向一侧上,也可以安装在第一子通道131a的Z反方向一侧的底壁上。风可以在第一子通道131a和第二子通道131b内流动,对第一子通道131a和第二子通道131b内设置元器件均散热,能够在满足散热需求的同时,提高空间利用效率。
第一子通道131a内可以设置有一个第一风扇141,第一风扇141位于第一子通道131a沿X反方向的一侧,第一风扇141可以朝向X方向送风。第二通道132内可以设置有两个第二风扇142,两个第二风扇142均位于第二通道132沿X反方向的一侧,两个第二风扇142可以朝向X方向送风。风从进风口111进入第一容纳腔130内后在第一子通道131a内沿X方向流动,然后流向与第一子通道131a连通的第二子通道131b并在第二子通道131b内沿X反方向流动,接着经过第一通风孔121进入第二通道132内,在第二通道132内沿X方向流动至出风口112排出第一容纳腔130。
在一种实施例中,参阅图12所示,进风口111和出风口112分别位于壳体110沿X方向的正方向和反方向两侧,进风口111位于第一子通道131a在X反方向的一端,出风口112位于第二通道132在X方向的一端。第一隔板120在背离进风口111的一端和壳体110之间形成第三通风孔122,本实施例中,第一隔板120在沿X方向的一端可以不与壳体110在X方向一侧的围板110a相抵接以形成第三通风孔122,可以理解的,在其他一些可能的实施例中,第一隔板120在沿X方向的一端可以与壳体110在X方向一侧的围板110a相抵接,第一隔板120在沿X方向的一端上开设有沿第一隔板120厚度方向贯穿的通孔以形成第三通风孔122,等等。
第一通道131被第二隔板1311分隔为在Z方向上排布的第一子通道131a和第二子通道131b,第三通风孔122分别与第一子通道131a、第二子通道131b和第二通道132在X方向的一端相连通。第一子通道131a沿X方向的一端和第二子通道131b沿X方向的一端相连通。
第一子通道131a内可以设置有一个第一风扇141,第一风扇141可以位于第一子通道131a沿X反方向的一侧,第一风扇141可以朝向X方向送风。第二通道132内可以设置有两个第二风扇142,两个第二风扇142均位于第二通道132沿X反方向的一侧,两个第二风扇142可以朝向X方向送风。风从进风口111进入第一容纳腔130内后在第一子通道131a内沿X方向流动,风到达第一子通道131a沿X方向的一端后,一部分风流向与第一子通道131a连通的第二子通道131b并在第二子通道131b内沿X反方向流动,接着经过第一通风孔121进入第二通道132内,在第二通道132内沿X方向流动至出风口112排出第一容纳腔130;另一部分风直接从第三通风孔122流向第二通道132沿X方向的一端然后流向出风口112排出第一容纳腔130。在第二通道132内散热需求不高时,第一通道131升温后的风可以部分从出风口112直接排出,第一通道131内的散热风不需要全部流通第二通道132,第一通道131可以进入更大风量的散热风,以提高第一通道131的通风风量,提高对第一通道131内器件的散热效率。
在一种实施例中,参阅图13所示,进风口111和出风口112分别位于壳体110沿X方向的正方向和反方向两侧,进风口111位于第一子通道131a在X反方向的一端,出风口112位于第二通道132在X方向的一端。第一通道131被第二隔板1311分隔为在Z方向上排布的第一子通道131a和第二子通道131b,第一子通道131a沿X方向的一端和第二子通道131b沿X方向的一端相连通。第一子通道131a内可以设置有一个第一风扇141,第一风扇141位于第一子通道131a沿X反方向的一侧,第一风扇141可以朝向X方向送风。
第二通道132内设置有第四隔板160,第四隔板160沿厚度方向(与图13中的Z方向一致)的两个侧面可以与第二隔板1311沿厚度方向的两个侧面可以相平行,或者呈一定角度的倾斜。在一种实施例中,第四隔板160可以与第二隔板1311在Z方向上的高度相同,或者不同。第四隔板160将第二通道132分隔为沿Z方向的第五子通道1323和第六子通道1324,第五子通道1323位于第六子通道1324的Z反方向一侧。第五子通道1323在X方向的一端与第六子通道1324在X方向的一端相连通,且均与出风口112相连通。
第二通道132内可以设置有第三隔板150,第三隔板150可以位于第五子通道1323沿X反方向的一端,第三隔板150可以将第五子通道1323分隔为X方向的正方向和反方向的两个空间,第三隔板150上可以设置有两个第四通风孔1501,两个第四通风孔1501分别用于安装两个第二风扇142,两个第二风扇142均位于第五子通道1323沿X反方向的一侧,两个第二风扇142可以朝向X方向送风。
第五子通道1323和第六子通道1324的X反方向一端均和第一通道131连通,第五子通道1323和第六子通道1324的X方向一端相连通,并均和出风口112相连通。
风从进风口111进入第一容纳腔130内后在第一子通道131a内沿X方向流动,然后流向与第一子通道131a连通的第二子通道131b并在第二子通道131b内沿X反方向流动,接着经过第一通风孔121进入第五子通道1323内。在第五子通道1323内沿X方向流动的风一部分进入第六子通道1324,在第六子通道1324内沿X反方向流动,另一部分风在流动至第五子通道1323沿X方向的一端后从出风口112排出第一容纳腔130。需要说明的是,当风流动到第二通道132沿X反方向的一端时,由于第四隔板160将第二通道分隔为Z方向上的第五子通道1323和第六子通道1324,在风第一次经过第五子通道1323时,风从第五子通道1323内沿X方向流动到第五子通道1323沿X方向的一端时,一部分风从出风口112排出第一容纳腔130,另一部分风从第五子通道1323与第六子通道1324的连通处流入第六子通道1324,风再次经过第五子通道1323时可以增加第五子通道1323内的通风风量,从而提高了风对第二通道132内安装的元器件的散热效果。
在一种实施例中,参阅图14所示,本实施例中的功率变换设备10的结构与图13中的功率变换设备10结构相类似。不同的是,本实施例中,第四隔板160可以为电路板,或者第四隔板160上设置有电路板,电路板的至少一个板面上设置有元器件。本实施例中,参阅图14所示,电路板可以在朝向Z方向正方向的一个板面上设置有元器件,第五子通道1323和第六子通道1324内均设有元器件,第六子通道1324内的元器件可以安装在第四隔板160上,第五子通道1323内的元器件可以安装在第四隔板160的Z反方向一侧上,也可以安装在第五子通道1323的Z反方向一侧的底壁上。风可以在第五子通道1323和第六子通道1324内流动,对第五子通道1323和第六子通道1324内设置元器件均散热,能够在满足散热需求的同时,提高空间利用效率。
在一种实施例中,参阅图15所示,本实施例中的功率变换设备10的结构与图13中的功率变换设备10结构相类似。不同的是,本实施例中,两个第二风扇142均位于第六子通道1324内,并可以位于第六子通道1324沿X反方向的一端。风从进风口111进入第一容纳腔130内后在第一子通道131a内沿X方向流动,然后流向与第一子通道131a连通的第二子通道131b并在第二子通道131b内沿X反方向流动,接着经过第一通风孔121进入第六子通道1324内。在第六子通道1324内沿X方向流动的风一部分进入第五子通道1323,在第五子通道1323内沿X反方向流动并回流至第六子通道1324中;另一部分风在流动至第六子通道1324沿X方向的一端后可以直接从出风口112排出第一容纳腔130。
需要说明的是,当风流动到第二通道132沿X反方向的一端时,由于第四隔板160将第二通道分隔为Z方向上的第五子通道1323和第六子通道1324,在风第一次经过第六子通道1324时,风从第六子通道1324内沿X方向流动到第六子通道1324沿X方向的一端时,一部分风可以直接从出风口112排出第一容纳腔130;另一部分风可以从第五子通道1323与第六子通道1324的连通处流入第五子通道1323,该部分风在回流至第六子通道1324时可以增大第六子通道1324内的通风风量,从而可以提高风对第二通道132内安装的元器件的散热效果。
在一些可能的实施方式中,参阅图16所示,功率变换设备10包括壳体110和第一隔板120,壳体110的内壁面围合形成第一容纳腔130。壳体110上设置有进风口111和出风口112,进风口111和出风口112可以均位于第一容纳腔130的Z反方向的一侧,进风口111和出风口112位于第一容纳腔130的同一侧。
第一隔板120位于第一容纳腔130内部,第一隔板120沿X方向的两端与壳体110的内壁相抵接,第一隔板120将第一容纳腔130在Y方向上分隔为第一通道131和第二通道132。第一通道131和第二通道132内均安装有元器件,其中,第一通道131内可以安装功率和功率密度更低的电容和电感等器件,第一通道131内的元器件发热量较低。第二通道132内可以安装功率和功率密度更高的电子器件等器件,第二通道132内的元器件发热量较高。进风口111可以位于第一通道131的一端并与第一通道131相连通,出风口112可以位于第二通道132的一端并与第二通道132相连通。
在本实施例中,进风口111和出风口112可以均位于第一通道131沿X反方向的一端。需要说明的是,在其他的可能的实施例中,进风口111和出风口112的位置可以与本实施例相同,也可以与本实施例不同,例如进风口111和出风口112可以均位于第一通道131沿X方向的一端。
第一隔板120和壳体110之间具有第一通风孔121,第一通风孔121可以位于第一隔板120沿X方向的一端,在第一隔板120沿X方向的一端设置缺口以形成第一通风孔121。第一通风孔121连通第一通道131和第二通道132。第一通道131和第二通道132可以均为风道,第一通道131和第二通道13均用于流通风,以对第一通道131和第二通道132内安装的元器件进行散热。
第一通道131内可以设置有第一风扇141,第一风扇141可以位于第一通道131内的任意位置,第一风扇141的数量可以为至少一个。本实施例中,第一风扇141可以位于第一通道131沿X反方向的一端,第一风扇141朝向X方向为第一通道131内送风,第一风扇141的数量可以为一个。
第二通道132内可以设置有第二风扇142,第二风扇142可以位于第二通道132内的任意位置,第二风扇142的数量可以为至少一个。本实施例中,第二通道132内设置有第三隔板150,第三隔板150沿厚度方向的两个侧面可以与第一隔板120沿厚度方向的两个侧面相垂直或相倾斜,第三隔板150可以将第二通道132分隔为沿X方向的第三子通道1321和第四子通道1322,出风口112设置于第四子通道1322内,第三子通道1321位于第四子通道1322背离出风口112的一侧,第三子通道1321和出风口112分别在第四子通道1322延伸方向的两端相对设置。
本实施例中,第二通道132在第三隔板150沿X方向的一侧为第三子通道1321,第二通道132在第三隔板150沿X反方向的一侧为第四子通道1322。第一通道131、第三子通道1321和第四子通道1322依次连通,第三隔板150上可以设置有第四通风孔1501,第四通风孔1501沿第三隔板150的厚度方向贯穿第三隔板150,第四通风孔1501连通第三子通道1321和第四子通道1322,第二通道132中的风扇设置在第四通风孔1501内,第四通风孔1501的数量为至少一个,第四通风孔1501内安装有第二风扇142。第二风扇142可以位于第二通道132沿X方向的一端,第二风扇142的数量可以为两个。第二风扇142朝向X反方向为第二通道132内送风。
在一种实施例中,第一风扇141的总风量小于第二风扇142的总风量。第一风扇141的总风量小于第二风扇142的总风量可以包含多种情况,例如,第一风扇141和第二风扇142的风速相同,第一风扇141的数量小于第二风扇142的数量;又如,第一风扇141的数量和第二风扇142的数量相同,第一风扇141的风速小于第二风扇142的风速;再如,第一风扇141的风速和数量均小于第二风扇142的风速和数量,等等。
进风口111和出风口112可以均位于第一通道131沿X反方向的一端,第一容纳腔130内的风均从出风口112排出。参阅图16所示,进风口111和第一风扇141送出的风在第一通道131内沿图16中的实线箭头方向传输,具体地,进风口111和第一风扇141送出的风在第一通道131内沿X方向流动,并通过第一通风孔121传输至第二风扇142处,并通过第二风扇142在第二通道132内沿X反方向流动,最终可以从出风口112流出,以此实现对第一通道131和第二通道132内安装的元器件的散热。本申请中,进风口111、第一通道131、第一通风孔121、第二通道132和出风口112依次连通形成串联的风道,风经过低散热需求的第一通道131后通过第一通风孔121进入第二通道132,不仅提高了第二通道132内部的总风量,提升了散热能力,而且与低散热需求的第一通道131进行热交换的风在第二通道132内能够继续为第二通道132内的元器件进行散热,实现了风的多级有效利用,提高了散热效率。并且,本申请还依据第一通道131和第二通道132内元器件的不同散热需求提供不同的风量,降低了散热成本。
在一种实施例中,参阅图17所示,进风口111和出风口112可以位于壳体110沿X反方向同一侧。第一通道131内可以设置有一个第一风扇141,第一风扇141可以位于第一通道131沿X反方向的一侧。在一种实施例中,第一风扇141可以覆盖第一通道131在X反方向一侧的进风开口,第一风扇141可以朝向X方向送风。
第二通道132内可以不设置风扇140,风从进风口111进入第一容纳腔130内后可以在第一通道131内沿X方向流动,转向后经过第一通风孔121进入第二通道132内,在第二通道132内沿X反方向流动至出风口112排出第一容纳腔130。
在一种实施例中,参阅图18所示,进风口111和出风口112可以位于壳体110沿X反方向同一侧。第一通道131内可以设置有一个第一风扇141,第一风扇141可以位于第一通道131沿X方向的一侧。在一种实施例中,第一风扇141可以覆盖第一通道131在X方向一侧的出风开口,第一风扇141可以朝向X方向送风,在风向拐弯处设置风扇,可以提高风的拐弯速率,以提高风在第一容纳腔130内的流通速率。
第二通道132内可以不设置风扇140,风从进风口111进入第一容纳腔130内后可以在第一通道131内沿X方向流动,转向后经过第一通风孔121进入第二通道132内,在第二通道132内沿X反方向流动至出风口112排出第一容纳腔130。
在一种实施例中,参阅图19所示,进风口111和出风口112可以位于壳体110沿X反方向同一侧,第一通道131内可以不设置第一风扇141。第二通道132内可以设置第二风扇142,第二风扇142的数量可以为两个,两个第二风扇142并联在第二通道132内,第二风扇142可以位于第二通道132沿X方向的一侧。在一种实施例中,第一风扇141可以朝向X反方向送风,在第一通道131向第二通道132连通的风向拐弯处设置第二风扇142,可以提高风的拐弯速率,以提高风在第一容纳腔130内的流通速率。
风从进风口111进入第一容纳腔130内后可以在第一通道131内沿X方向流动,转向后经过第一通风孔121进入第二通道132内,在第二通道132内沿X反方向流动至出风口112排出第一容纳腔130。
在一种实施例中,参阅图20所示,进风口111和出风口112可以位于壳体110沿X反方向同一侧,第一通道131内可以不设置第一风扇141。第二通道132内可以设置第二风扇142,第二风扇142的数量可以为两个,两个第二风扇142并联在第二通道132内,第二风扇142可以位于第二通道132沿X反方向的一侧。在一种实施例中,第二风扇142可以朝向X反方向送风。
风从进风口111进入第一容纳腔130内后可以在第一通道131内沿X方向流动,转向后经过第一通风孔121进入第二通道132内,在第二通道132内沿X反方向流动至出风口112排出第一容纳腔130。
在一种实施例中,参阅图21所示,进风口111和出风口112可以位于壳体110沿X反方向同一侧。第一通道131内可以设置有一个第一风扇141,第一风扇141可以位于第一通道131沿X反方向的一侧。在一种实施例中,第一风扇141可以覆盖第一通道131在X反方向一侧的进风开口,第一风扇141可以朝向X方向送风。
第二通道132内可以设置第二风扇142,第二风扇142的数量可以为两个,两个第二风扇142并联在第二通道132内,第二风扇142可以位于第二通道132沿X方向的一侧。在一种实施例中,第二风扇142可以朝向X反方向送风,在第一通道131向第二通道132连通的风向拐弯处设置第二风扇142,结合第一风扇141在进风口111处向第一容纳腔130内送风,可以提高风的拐弯速率,以提高风在第一容纳腔130内的流通速率。
风从进风口111进入第一容纳腔130内后可以在第一通道131内沿X方向流动,转向后经过第一通风孔121进入第二通道132内,在第二通道132内沿X反方向流动至出风口112排出第一容纳腔130。
在一种实施例中,参阅图22所示,进风口111和出风口112可以位于壳体110沿X反方向同一侧。第一通道131内可以设置有一个第一风扇141,第一风扇141可以位于第一通道131沿X反方向的一侧。在一种实施例中,第一风扇141可以覆盖第一通道131在X反方向一侧的进风开口,第一风扇141可以朝向X方向送风。
第二通道132内可以设置第二风扇142,第二风扇142的数量可以为两个,两个第二风扇142并联在第二通道132内,第二风扇142可以位于第二通道132沿X方向的一侧。在一种实施例中,第二风扇142可以朝向X反方向送风,在第一通道131向第二通道132连通的风向拐弯处设置第二风扇142,结合第一风扇141在进风口111处向第一容纳腔130内送风,可以提高风的拐弯速率,以提高风在第一容纳腔130内的流通速率。
第二通道132内设置有第四隔板160,第四隔板160沿厚度方向(与图22中的Z方向一致)的两个侧面可以与第二隔板1311沿厚度方向的两个侧面可以相平行,或者呈一定角度的倾斜。第四隔板160将第二通道132分隔为沿Z方向的第五子通道1323和第六子通道1324,第五子通道1323位于第六子通道1324的Z反方向一侧。第五子通道1323在X方向的一端与第六子通道1324在X方向的一端相连通,且均与出风口112相连通。
第二通道132内可以设置有第三隔板150,第三隔板150可以位于第五子通道1323沿X方向的一端,第三隔板150可以将第五子通道1323分隔为X方向的正方向和反方向的两个空间,第三隔板150上可以设置有两个第四通风孔1501,两个第四通风孔1501分别用于安装两个第二风扇142,两个第二风扇142均位于第五子通道1323沿X方向的一侧,两个第二风扇142可以朝向X反方向送风。
第五子通道1323和第六子通道1324的X方向的一端均和第一通道131连通;第五子通道1323和第六子通道1324的X反方向一端相连通,并均和出风口112相连通。
风从进风口111进入第一容纳腔130内后在第一通道131内沿X方向流动,然后经过第一通风孔121进入第五子通道1323内。在第五子通道1323内沿X反方向流动的风一部分转向进入第六子通道1324,在第六子通道1324内沿X方向流动;另一部分风在流动至第五子通道1323沿X反方向的一端后从出风口112排出第一容纳腔130。需要说明的是,当风流动到第二通道132沿X方向的一端时,由于第四隔板160将第二通道132分隔为Z方向上的第五子通道1323和第六子通道1324,在风第一次经过第五子通道1323时,风从第五子通道1323内沿X反方向流动到第五子通道1323沿X反方向的一端时,一部分风从出风口112排出第一容纳腔130,另一部分风从第五子通道1323与第六子通道1324的连通处流入第六子通道1324,风再次经过第五子通道1323时可以增加第五子通道1323内的通风风量,从而提高了风对第二通道132内安装的元器件的散热效果。
在一种实施例中,参阅图23所示,本实施例中的功率变换设备10的结构与图22中的功率变换设备10结构相类似。不同的是,本实施例中,第四隔板160可以为电路板,或者第四隔板160上设置有电路板,电路板的至少一个板面上设置有元器件。本实施例中,参阅图23所示,电路板可以在朝向Z方向正方向的一个板面上设置有元器件,第五子通道1323和第六子通道1324内均设有元器件,第六子通道1324内的元器件可以安装在第四隔板160上,第五子通道1323内的元器件可以安装在第四隔板160的Z反方向一侧上,也可以安装在第五子通道1323的Z反方向一侧的底壁上。风可以在第五子通道1323和第六子通道1324内流动,对第五子通道1323和第六子通道1324内设置元器件均散热,能够在满足散热需求的同时,提高空间利用效率。
在一种实施例中,参阅图24所示,本实施例中的功率变换设备10的结构与图22中的功率变换设备10结构相类似。不同的是,本实施例中,两个第二风扇142均位于第六子通道1324内,并可以位于第六子通道1324沿X方向的一端。风从进风口111进入第一容纳腔130内后在第一通道131内沿X方向流动,然后经过第一通风孔121进入第六子通道1324内。在第六子通道1324内沿X反方向流动的风一部分向Z方向的反方向弯转并进入第五子通道1323,在第五子通道1323内沿X方向流动并回流至第六子通道1324中;另一部分在流动至第六子通道1324沿X反方向的一端后可以直接从出风口112排出第一容纳腔130。
需要说明的是,当风流动到第二通道132沿X方向的一端时,由于第四隔板160将第二通道分隔为Z方向上的第五子通道1323和第六子通道1324,在风第一次经过第六子通道1324时,风从第六子通道1324内沿X反方向流动到第六子通道1324沿X反方向的一端,一部分风可以直接从出风口112排出第一容纳腔130;另一部分风可以从第五子通道1323与第六子通道1324的连通处流入第五子通道1323,该部分风在回流至第六子通道1324时可以增大第六子通道1324内的通风风量,从而可以提高风对第二通道132内安装的元器件的散热效果。
在一些可能的实施方式中,参阅图25所示,壳体110在Z反方向一侧具有第二容纳腔170,第二容纳腔170可以位于第一容纳腔130的Z反方向一侧。第一容纳腔130和第二容纳腔170之间可以通过第五隔板172分隔,第五隔板172沿XY平面延伸以将壳体110内的容纳腔分隔为第一容纳腔130和第二容纳腔170。
在一种实施例中,第一容纳腔130的进风口111和出风口112均可以位于第五隔板172上,进风口111和出风口112均可以和第二容纳腔170相连通。第二容纳腔170可以为通风风道,在Y反方向一侧设置有第三风扇173,第三风扇173的数量可以为至少一个,本实施例以四个第三风扇173为例。
第三风扇173可以向第二容纳腔170内吹风。第二容纳腔170内可以设置换热器171,换热器171可以具有内部循环通道,并且循环通道分别和进风口111和出风口112连接,出风口112排出的热风可以进入到换热器171的内部通道内,通过换热器171和外部空间进行热交换,降温后的气体可以从进风口111返回到第一容纳腔130中。本实施例中,换热器171的内部通道和第一容纳腔130相贯通,第一容纳腔130可以为相对密封的腔体,以对腔体内安装的器件进行保护。
在一种实施例中,图25仅示例了一种图3a所对应的第二容纳腔170的结构。进风口111和出风口112可以位于第一容纳腔130的X方向和X反方向的两侧,换热器171可以横跨在第二容纳腔170内,并沿X方向沿伸,这与Y方向的吹风(参阅图25中的四条箭头线条指向)方向相垂直,以使得换热器171具有较大的换热面积,提高对换热器171内高温气体的散热,提高对第一容纳腔130内器件的散热效率。
本申请还提供一种储能设备,包括上述任一实施方式提供的功率变换设备10,参阅图26所示,还可以包括光伏板21、交流汇流箱22和组串式逆变器25,组串式逆变器25可以为上述任一实施方式所述的功率变换设备10,连接在光伏板21和交流汇流箱22之间,组串式逆变器可以将光伏板21的可变直流电压转变为市电频率交流电,并传输至交流汇流箱22中,再通过箱变23传输到电网24中,实现光能向可用电能的转变。在一种实施例中,转变的交流电还可以反馈回商用输电系统。组串式逆变器25是光伏阵列系统中重要的系统平衡(BOS)之一,可以配合一般交流供电的设备使用。
在一种实施例中,组串式逆变器、交流汇流箱22、箱变23和电网24串联连接,组串式逆变器25、交流汇流箱22和箱变23之间可以通过交流电缆进行连接。
在一些可能的实施方式中,参阅图27所示,功率变换设备10还可以用于电能的功率转换,以对电池进行充放电,电池和功率变换设备10连接。
其中,储能设备可以为储能柜,储能变流器(PCS)、直流变换器(DC-DC)和充电模块可以作为独立设备,也可以集成在储能柜和充电桩中,储能柜中可以设置储能变流器(PCS)和直流变换器(DC-DC),充电桩内可以设置充电模块。
本实施例以储能柜等储能设备为例,参阅图27所示,电池可以为电池组,储能柜30包括柜体310、电池组320和储能变流器330,储能变流器可以为上述任一实施方式所述的功率变换设备,是连接储能电池和电网(或负荷)的双向电流可控转换装置,可控制蓄电池的充电和放电过程,进行交直流的变换,在电网和储能系统间精确快速的调节电压、频率和功率,实现恒功率恒流充放电以及平滑波动性电源输出。
柜体310内具有容纳空间,电池组320和储能变流器330均位于柜体310内。其中,储能柜中还可以设置直流变换器和配电模块等,直流变换器和配电模块等装置也可以构成储能柜中的功率变换设备。
以上实施例仅用以说明本申请的技术方案,而非对其限制;尽管参照前述实施例对本申请进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围,均应包含在本申请的保护范围之内。
以上实施例仅用以说明本申请的技术方案,而非对其限制;尽管参照前述实施例对本申请进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围,均应包含在本申请的保护范围之内。
Claims (13)
- 一种功率变换设备,其特征在于,包括壳体和第一隔板,所述壳体内具有第一容纳腔,所述第一隔板将所述第一容纳腔分隔成第一通道和第二通道;所述第一通道内设置有第一元器件,所述第二通道内设置有第二元器件;所述第一隔板上设置有第一通风孔,所述第一通风孔连通所述第一通道和所述第二通道,所述壳体上设置有进风口和出风口,所述进风口、所述第一通道、所述第一通风孔、所述第二通道和所述出风口依次连通,以形成通风通道。
- 根据权利要求1所述的功率变换设备,其特征在于,所述第一通道内设置有第二隔板,所述第二隔板将所述第一通道分隔为第一子通道和第二子通道,所述第二隔板上设置有第二通风孔,所述第二通风孔连通所述第一子通道和第二子通道,所述第一通风孔连接所述第二子通道和所述第二通道,所述第一元器件设置在所述第一子通道和所述第二子通道中的至少一个通道内,所述第一通风孔和所述进风口位于所述第一隔板延伸方向上的同一侧,所述进风口和所述出风口位于所述第一隔板延伸方向上的两侧;所述进风口、所述第一子通道、所述第二通风孔、所述第二子通道、所述第一通风孔、所述第二通道和所述出风口依次连通。
- 根据权利要求2所述的功率变换设备,其特征在于,所述第二隔板为电路板,或者所述第二隔板上设置有电路板。
- 根据权利要求2或3所述的功率变换设备,其特征在于,所述第一隔板在延伸方向上背离所述进风口的一端设置有第三通风孔,所述第一子通道和所述第二子通道中的至少一个通过所述第三通风孔与所述第二通道连通。
- 根据权利要求1所述的功率变换设备,其特征在于,所述第一通风孔位于所述第一隔板在延伸方向上背离所述进风口的一侧,所述进风口和所述出风口位于所述第一隔板延伸方向上的同侧。
- 根据权利要求1-5任一项所述的功率变换设备,其特征在于,所述第一通道内设置有第一风扇,所述第二通道内设置有第二风扇,所述第一风扇的总风量小于所述第二风扇的总风量。
- 根据权利要求1-6任一项所述的功率变换设备,其特征在于,所述第二通道内设置有第三隔板,所述第三隔板将所述第二通道分隔为第三子通道和第四子通道,所述出风口设置于所述第四子通道内,所述第三子通道位于所述第四子通道背离所述出风口的一侧,所述第三隔板上设置有第四通风孔,所述第四通风孔连通所述第三子通道和所述第四子通道,所述第二通道中的风扇设置在所述第四通风孔内。
- 根据权利要求1-7任一项所述的功率变换设备,其特征在于,所述第二通道内设置有第四隔板,所述第四隔板将所述第二通道分隔为第五子通道和第六子通道,所述第二元器件设置于所述第五子通道内;所述第五子通道和所述第六子通道的入流端相连通,所述第五子通道和所述第六子通道的入流端均和所述第一通道连通,所述第五子通道和所述第六子通道的出流端相连通,所述第五子通道的出流端和所述第六子通道的出流端均和所述出风口相连通。
- 根据权利要求8所述的功率变换设备,其特征在于,所述第五子通道和所述第六子通道中的至少一个通道内设置有风扇。
- 根据权利要求8所述的功率变换设备,其特征在于,所述第五子通道和所述第六子通道内分别设置有风扇,所述第五子通道内风扇的风向和所述第六子通道内风扇的风向相反。
- 根据权利要求8-10任一项所述的功率变换设备,其特征在于,所述第四隔板为电路板,或者所述第四隔板上设置有电路板。
- 根据权利要求1-11任一项所述的功率变换设备,其特征在于,所述壳体内还设置有第二容纳腔,所述第二容纳腔和所述第一容纳腔之间通过第五隔板相分隔;所述第二容纳腔内设置有换热器,所述换热器具有内部循环通道,内部循环通道分别与所述进风口和所述出风口连通,所述换热器用于对所述出风口排出的介质进行降温,以向所述进风口提供冷却介质。
- 一种储能设备,其特征在于,包括电池和上述权利要求1-12任一项所述的功率变换设备,所述电池和所述功率变换设备连接,所述功率变换设备用于电能的功率转换,以对所述电池进行充放电。
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