CN223182535U - Heat dissipation device for inverter-boost integrated machine and inverter-boost integrated machine - Google Patents

Abstract

The present invention provides a heat dissipation device for an inverter-boost integrated machine and an inverter-boost integrated machine. The heat dissipation device for the inverter-boost integrated machine includes: a transformer box, including an oil tank and a plate-dispersed structure connected to the oil tank, the plate-dispersed structure having an oil channel connected to the inside of the oil tank, the oil channel and the inside of the oil tank are both constructed to be able to pass transformer oil, and the oil tank is used to accommodate a winding structure; a power conversion box, used to accommodate semiconductor power devices; a power mechanism, used to drive a cooling airflow into the power conversion box to dissipate heat for the power conversion box; wherein, at least part of the plate-dispersed structure is located on the flow path of the cooling airflow of the power conversion box. The inverter-boost integrated machine of the technical solution of the present invention can not only reduce the cost and power consumption of heat dissipation of the inverter-boost integrated machine while increasing the heat dissipation effect of the oil transformer, but also reduce the noise of the inverter-boost integrated machine.

Description

Heat abstractor and contravariant boost all-in-one for all-in-one

Technical Field

The utility model relates to the technical field of inversion and boosting integrated machines, in particular to a heat dissipation device for an inversion and boosting integrated machine and the inversion and boosting integrated machine.

Background

The existing inversion and boosting integrated machine comprises a power converter 1 (PCS), an oil transformer 2 and the like, as shown in fig. 1. The power converter 1 cools and dissipates heat to the semiconductor power device in an air cooling, liquid cooling or thermosiphon (phase change) mode, and the oil immersed in the transformer oil in the oil tank changes into a high-low voltage winding and an iron core, so that the heat is transferred to the transformer oil, and the transformer oil is naturally cooled in the sheet dispersion structure 3, and finally the high-low voltage winding and the iron core are cooled.

In actual operation, the oil transformer 2 is naturally cooled in the scattered structure 3 through transformer oil, the cooling effect is limited, the risk of overtemperature of windings or iron cores is easy to occur, in order to enhance the cooling effect, the scattered structure 3 can be directly blown by the fan 4 (the position of the fan 4 is not fixed, and the fan can be arranged above or below the scattered structure 3, etc.), so that transformer oil in the scattered structure 3 is changed from original natural cooling to forced convection cooling, the scheme is favorable for oil to heat dissipation, but the cost and the power consumption can be increased due to the additional arrangement of the fan 4, and the noise of the whole inversion boosting all-in-one machine is also increased due to the increase of the fan.

Disclosure of utility model

The utility model mainly aims to provide a heat dissipation device for an inversion and boosting integrated machine and the inversion and boosting integrated machine, wherein the inversion and boosting integrated machine can reduce the heat dissipation cost and power consumption of the inversion and boosting integrated machine and reduce the noise of the inversion and boosting integrated machine while increasing the heat dissipation effect of an oil transformer.

The utility model provides a heat dissipation device for an inversion boosting all-in-one machine, which comprises a transformation box, a power conversion box and a power mechanism, wherein the transformation box comprises an oil tank and a sheet scattering structure connected to the oil tank, the sheet scattering structure is provided with an oil liquid channel communicated with the inside of the oil tank, the oil liquid channel and the inside of the oil tank are both configured to be capable of being filled with transformer oil, the oil tank is used for accommodating a winding structure, the power conversion box is used for accommodating a semiconductor power device, the power mechanism is used for driving cooling air flow to flow into the power conversion box to dissipate heat of the power conversion box, and at least part of sheet scattering structure is positioned on a flow path of the cooling air flow of the power conversion box.

Further, the heat dissipating device for the inversion boosting integrated machine further comprises an air channel shell for cooling air flow, the air channel shell is provided with an air inlet and an air outlet, one of the air inlet and the air outlet is communicated with the inside of the power conversion box, and the other of the air inlet and the air outlet is arranged towards the scattered structure.

Further, the heat dissipating device for the inversion and boost integrated machine further comprises a heat sink positioned in the power conversion box, and the heat sink is configured to dissipate heat of the semiconductor power device.

Further, the power conversion box is provided with a ventilation opening, and the ventilation opening and the air duct shell are positioned on two sides of the radiator.

Further, the power conversion box comprises a first box body and a second box body, wherein a condenser is arranged in the first box body, an evaporator used for radiating the semiconductor power device is arranged in the second box body, and the first box body and the second box body are communicated with the air duct shell.

Further, the first box body is provided with a first inlet and a first outlet, the second box body is provided with a second inlet and a second outlet, the first outlet of the first box body and the second outlet of the second box body are communicated with the air inlet of the air duct shell, the air outlet faces the scattered structure, or the first inlet of the first box body and the second inlet of the second box body are communicated with the air outlet of the air duct shell, and the air inlet of the air duct shell faces the scattered structure.

Further, the first box body is provided with a first inlet and a first outlet, the second box body is provided with a second inlet and a second outlet, the second outlet of the second box body is communicated with the first inlet of the first box body, the first outlet of the first box body is communicated with the air inlet of the air duct shell, the air outlet is arranged towards the scattered structure, or the second inlet of the second box body is communicated with the first outlet of the first box body, the first inlet of the first box body is communicated with the air outlet of the air duct shell, and the air inlet of the air duct shell is arranged towards the scattered structure.

The first box body is provided with a first inlet and a first outlet, the second box body is provided with a second inlet and a second outlet, the two air duct shells are respectively positioned on the first side and the second side of the scattered structure, the air inlet of the air duct shell positioned on the first side is communicated with the first outlet of the first box body, the air outlet of the air duct shell positioned on the first side is arranged towards the scattered structure, the air outlet of the air duct shell positioned on the second side is communicated with the second inlet of the second box body, and the air inlet of the air duct shell positioned on the second side is arranged towards the scattered structure.

Further, the power conversion box comprises a first box body and a second box body, wherein a condenser is arranged in the first box body, an evaporator used for radiating the semiconductor power device is arranged in the second box body, one of the air inlet and the air outlet is communicated with the first box body, and the other one of the air inlet and the air outlet is arranged towards the scattered structure.

Further, the heat dissipation device for the inversion boosting integrated machine further comprises a heat dissipation structure, wherein the heat dissipation structure comprises a mounting piece and a plurality of heat dissipation pieces, the mounting piece is mounted on the air duct shell, the heat dissipation pieces are arranged on the mounting piece at intervals, one end of each heat dissipation piece stretches into the air duct shell, and the other end of each heat dissipation piece is located outside the air duct shell.

Further, the power mechanism comprises a fan, and at least one of the fan on the sheet structure, the power conversion box, the air duct shell and the air duct shell is provided with the fan.

According to another aspect of the utility model, the utility model provides an inversion and boosting integrated machine, which comprises the heat dissipation device for the inversion and boosting integrated machine, a winding structure and a semiconductor power device, wherein the winding structure is positioned in an oil tank, and the semiconductor power device is arranged in a power conversion tank.

Further, the inversion boosting integrated machine further comprises a reactor, and the reactor is positioned in the power conversion box or the oil tank.

By adopting the technical scheme, at least part of the scattered structure is positioned on the flow path of the cooling airflow of the power conversion box, the power conversion box and the oil tank share the power mechanism for heat dissipation, so that the scattered structure of the voltage transformation box is changed from natural cooling to forced convection under the condition that a fan is not additionally arranged on the inversion and boosting integrated machine, the simultaneous heat dissipation of the power conversion box and the voltage transformation box is realized, the noise of the whole inversion and boosting integrated machine is prevented from being increased due to the increase of the fan, and the heat dissipation effect of the voltage transformation box is improved, and meanwhile, the heat dissipation cost and the power consumption of the inversion and boosting integrated machine are reduced, and the noise of the inversion and boosting integrated machine is also reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows a schematic diagram of the structure of an inversion boosting integrated machine (natural cooling) in the prior art;

FIG. 2 shows a schematic diagram of the inversion boosting all-in-one machine of FIG. 1 (with additional fans to form forced convection);

Fig. 3 is a schematic structural diagram of a first embodiment of the inversion boosting integrated machine of the present utility model;

fig. 4 shows a schematic structural diagram of a second embodiment of the inversion boosting integrated machine of the present utility model;

fig. 5 shows a schematic structural diagram of a third embodiment of the inversion boosting integrated machine of the present utility model;

fig. 6 shows a schematic structural diagram of a fourth embodiment of the inversion boosting integrated machine of the present utility model;

fig. 7 is a schematic structural diagram of a fifth embodiment of the inversion boosting integrated machine of the present utility model;

fig. 8 shows another schematic structural diagram of a fifth embodiment of the inversion boosting integrated machine of the present utility model;

Fig. 9 is a schematic structural diagram showing a sixth embodiment of an inversion boosting integrated machine of the present utility model;

Fig. 10 is another schematic structural diagram of a sixth embodiment of the inversion boosting integrated machine of the present utility model;

Fig. 11 is a schematic structural view showing a seventh embodiment of the inversion boosting integrated machine of the present utility model;

fig. 12 is a schematic diagram showing the structure of an embodiment eight of the inversion boosting integrated machine of the present utility model;

fig. 13 is a schematic diagram showing the structure of a ninth embodiment of the inversion boosting integrated machine of the utility model;

fig. 14 shows a schematic structural diagram of an embodiment ten of the inversion boosting integrated machine of the utility model;

Fig. 15 shows a schematic structural diagram of an eleventh embodiment of the inversion boosting integrated machine of the present utility model;

FIG. 16 illustrates a schematic diagram of one embodiment of a heat dissipating structure of the inversion boost all-in-one machine of FIG. 3;

FIG. 17 is a schematic diagram of another embodiment of a heat dissipation structure of the inversion and boost all-in-one machine of FIG. 3;

Fig. 18 shows an assembly structure schematic diagram of a heat dissipation structure of the inversion boosting integrated machine of fig. 3.

Wherein the above figures include the following reference numerals:

11. The device comprises an oil tank, 12, a sheet scattering structure, 21, a power conversion box, 211, a first box body, 212, a second box body, 22, a power mechanism, 23, a radiator, 24, a semiconductor power device, 25, a condenser, 26, an evaporator, 27, a reactor, 28, a ventilation opening, 50, an air duct shell, 51, an air inlet, 52, an air outlet, 55, a mounting piece, 56 and a radiating piece.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 3, the embodiment of the utility model provides a heat dissipation device for an inversion and boost integrated machine, which comprises a transformer tank, wherein the transformer tank comprises an oil tank 11 and a sheet dissipation structure 12 connected to the oil tank 11, the sheet dissipation structure 12 is provided with an oil liquid channel communicated with the inside of the oil tank 11, the oil liquid channel and the inside of the oil tank 11 are both configured to be capable of being filled with transformer oil, the oil tank 11 is used for accommodating a winding structure, a power conversion box 21 is used for accommodating a semiconductor power device 24, a power mechanism 22 is used for driving cooling air flow to flow into the power conversion box 21 to dissipate heat of the power conversion box 21, and at least part of the sheet dissipation structure 12 is positioned on a flow path of the cooling air flow of the power conversion box 21.

In the above technical solution, at least part of the scattered structure 12 is located on the flow path of the cooling airflow of the power conversion box 21, so that the power conversion box 21 and the oil tank 11 share the power mechanism 22 for heat dissipation, and under the condition that the fan is not additionally added to the inversion and boosting integrated machine, the scattered structure 12 of the voltage transformation box is changed from natural cooling into forced convection, so that the simultaneous heat dissipation of the power conversion box 21 and the voltage transformation box is realized, the increase of the noise of the whole inversion and boosting integrated machine due to the increase of the fan is avoided, and thus, the heat dissipation effect of the voltage transformation box is increased, and meanwhile, the heat dissipation cost and the power consumption of the inversion and boosting integrated machine are reduced, and the noise of the inversion and boosting integrated machine is also reduced.

Preferably, in an embodiment of the present utility model, the power mechanism 22 includes a fan, and at least one of the fan, on the fan structure 12, on the power conversion box 21, within the power conversion box 21, on the air duct housing 50, and within the air duct housing 50 is provided. In this way, the fan may provide a cooling air flow to simultaneously dissipate heat from the power conversion tank 21 and the oil tank 11.

As shown in fig. 3, in the embodiment of the present utility model, the heat dissipating device for an inverter and booster integrated machine further includes an air duct case 50 for passing a cooling air flow, the air duct case 50 having an air inlet 51 and an air outlet 52, one of the air inlet 51 and the air outlet 52 being in communication with the interior of the power conversion box 21, and the other of the air inlet 51 and the air outlet 52 being disposed toward the dispersing structure 12.

In the above technical solution, by additionally providing the air duct housing 50, the cooling air flow in the power conversion box 21 can be acted on the scattering structure 12 through the air inlet 51 and the air outlet 52, so that the cooling air flow dissipates the heat of the oil tank 11, and the air duct housing 50 can guide the air flow, so that the noise of the air flow can be reduced.

Specifically, in the embodiment of the present utility model, the air duct case 50 may also provide a mounting space for noise reduction accessories (i.e., a heat dissipation structure described below).

As shown in fig. 16, in the embodiment of the utility model, the heat dissipating device for the inversion and boosting integrated machine further comprises a heat dissipating structure, wherein the heat dissipating structure comprises a mounting member 55 and a plurality of heat dissipating members 56, the mounting member 55 is mounted on the air duct shell 50, the plurality of heat dissipating members 56 are arranged at intervals, one end of each heat dissipating member 56 extends into the air duct shell 50, and the other end of each heat dissipating member 56 is positioned outside the air duct shell 50. In this way, heat within the air duct housing 50 may be transferred to the external environment to effectively reduce the temperature within the air duct housing 50, thereby increasing the effect of convective heat dissipation to the fin structure 12 or reducing the temperature into the power conversion box 21.

It should be noted that, a proper number, size and model of the heat dissipation members 56 may be selected according to the heat dissipation requirement, and the installation space of the installation member 55 may be reserved on the air duct housing 50 in advance. The manner of securing the air duct housing 50 to the heat dissipation mounting member 55 is not limited, such as a screw lock attachment.

It should be noted that, in the embodiment of the present utility model, a heat dissipation structure may be provided on the wall of the power conversion box 21 and/or the wall of the oil tank 11 to increase the heat dissipation effect.

In embodiments of the present utility model, noise reducing attachments may also be provided on the duct housing 50 to reduce airflow noise.

In the embodiment of the present utility model, the heat dissipating member 56 is a heat dissipating fin, for example, a double-sided relieved tooth structure, as shown in fig. 18, or the heat dissipating member 56 may be a heat dissipating post, as shown in fig. 17.

As shown in fig. 3, an embodiment of the present utility model provides an inversion boosting all-in-one machine. The inversion and boosting integrated machine comprises the heat dissipation device for the inversion and boosting integrated machine, a winding structure positioned in the oil tank 11, and a semiconductor power device 24 arranged in the power conversion box 21. In this way, the air flow generated by the power mechanism 22 can dissipate heat of the semiconductor power device 24, and the oil tank 11 is filled with transformer oil to conduct heat to the winding structure and dissipate heat through forced convection generated at the fin-dissipation structure 12.

In the embodiment of the present utility model, the winding structure is located in the tank 11 to form a transformer tank, and the semiconductor power device 24 is mounted in the power conversion tank 21 to form a Power Converter (PCS).

In one embodiment of the utility model, the winding structure includes an oil-change high-low voltage winding and an iron core.

As shown in fig. 3 and 4, in the embodiment of the present utility model, the inverter-boost integrated machine further includes a reactor 27, and the reactor 27 is located in the power conversion tank 21 or in the oil tank 11. In this way, the reactor 27 is located in the power conversion tank 21, and the reactor 27 may be cooled by the cooling air flow generated in the power conversion tank 21 by the power mechanism 22, or the reactor 27 may be cooled by transferring the heat generated in the reactor 27 to a flow path of the cooling air flow by a cooling liquid (i.e., the evaporator 26) described below, or the reactor 27 may be located in the oil tank 11, and the reactor 27 may be cooled by transformer oil in the oil tank 11.

Further, if the reactor 27 is moved into the oil tank 11, the space of the oil tank 11 can be fully utilized to reduce the volume of the power converter, thereby improving the power density of the whole inversion and boosting integrated machine.

Example 1

As shown in fig. 3, in the first embodiment of the present utility model, the heat dissipating device for an inverter and boost integrated machine further includes a heat sink 23 located in the power conversion box 21, and the heat sink 23 is configured to dissipate heat from the semiconductor power device 24. The air inlet 51 communicates with the interior of the power conversion box 21, the air outlet 52 is disposed toward the scattered structure 12, and the reactor 27 is located in the power conversion box 21.

Through the arrangement, under the action of the power mechanism 22, the cooling air flow in the power conversion box 21 flows through the radiator 23 and the reactor 27 and then is blown to the sheet radiating structure 12 through the air inlet 51, the air duct shell 50 and the air outlet 52, so that under the condition that a fan is not additionally added in the inversion boosting integrated machine, not only can the semiconductor power device 24 and the reactor 27 in the power conversion box 21 be radiated, but also the sheet radiating structure 12 can be radiated, and therefore the oil in the oil tank 11 is radiated to the high-low voltage winding and the iron core, and the cost and the power consumption of the inversion boosting integrated machine can be reduced while the radiating effect of the transformer box is improved, and the noise of the inversion boosting integrated machine can be reduced.

It should be noted that, in the first embodiment of the present utility model, as shown in fig. 3, the main power mechanism 22 includes a fan, the fan is located in the power conversion box 21, the cooling medium is a cooling air flow, and the fan drives the cooling air flow to the dispersing structure 12, so that the dispersing structure 12 is located in a flow path of the cooling air flow of the power conversion box 21.

As shown in fig. 3, in the first embodiment of the present utility model, the power conversion box 21 is provided with the ventilation opening 28, and the ventilation opening 28 and the air duct case 50 are located at both sides of the radiator 23. Thus, the area of the cooling air flow flowing through the radiator can be increased, thereby improving the heat radiation effect.

Specifically, in the first embodiment of the present utility model, the fan is placed at the top of the power conversion box 21, and adopts the design of the air duct with top air intake and bottom air exhaust, the reactor 27 is located below the semiconductor power device 24, the air firstly dissipates the heat of the semiconductor power device 24, then blows to the reactor 27 to dissipate the heat of the semiconductor power device, and the transformer oil in the sheet dispersion structure 12 is changed from natural cooling into forced convection by guiding the air exhaust of the power converter to the sheet dispersion structure 12, so as to increase the heat dissipation effect of the transformer box.

Example two

Since the reactor 27 of the power converter has a larger wind resistance, the air volume of the air flow generated by the fan blown to the dispersing structure 12 is smaller and the wind temperature is higher. Therefore, as shown in fig. 4, the second embodiment of the present utility model is different from the first embodiment in that the reactor 27 in the power conversion tank 21 can be moved into the oil tank 11 by structural deformation, so that the heat dissipation modes of the reactor 27 and the oil-to-high/low voltage winding and the iron core are consistent, and at this time, the air output of the power converter is increased and the air temperature is reduced, thereby improving the convective heat transfer effect of the transformer oil in the sheet structure 12.

Other structures of the second embodiment are the same as those of the first embodiment, and will not be described here again.

Example III

As shown in fig. 5, the third embodiment of the present utility model is different from the first embodiment in that the air outlet 52 is communicated with the interior of the power conversion box 21, and the air inlet 51 is disposed towards the scattered structure 12, so that under the action of the power mechanism 22, air flows sequentially enter the air inlet 51, the air duct shell 50 and the air outlet 52 through the scattered structure 12, and sequentially flow through the radiator 23 and the reactor 27 through the air outlet 52 into the power conversion box 21, and then are discharged through the air vent 28, so that under the condition that no additional fan is added to the inversion boosting integrated machine, the air inlet of the power converter passes through the scattered structure 12 first, so that the transformer oil in the scattered structure 12 is changed into forced convection from natural cooling, and the heat dissipation effect of the transformer box is increased.

Other structures of the third embodiment are the same as those of the first embodiment, and will not be described here again.

Example IV

As shown in fig. 6, the fourth embodiment of the present utility model is different from the third embodiment in that the reactor 27 in the power conversion box 21 can be moved into the oil tank 11 by structural deformation, so that the heat dissipation modes of the reactor 27 and the oil-to-high-low voltage winding and the iron core are consistent, and at this time, the air output of the power converter is increased and the air temperature is reduced, thereby improving the convective heat transfer effect of the transformer oil in the sheet-dispersion structure 12.

Other structures of the fourth embodiment are the same as those of the third embodiment, and will not be described here again.

Example five

As shown in fig. 7 and 8, in the fifth embodiment of the present utility model, the power converter adopts a cooling mode of liquid cooling, thermosiphon or vapor compression refrigeration, that is, the power converter 21 is not provided with the radiator 23, the power converter 21 includes the first box 211 and the second box 212, the first box 211 is provided with the condenser 25, the second box 212 is provided with the evaporator 26 for cooling the semiconductor power device 24, the first box 211 and the second box 212 are both communicated with the air duct shell 50, the first box 211 has the first inlet and the first outlet, the second box 212 has the second inlet and the second outlet, the first outlet of the first box 211 and the second outlet of the second box 212 are both communicated with the air inlet 51 of the air duct shell 50, and the air outlet 52 is arranged towards the sheet dispersing structure 12.

Further, the reactor 27 is located in a tank provided with the evaporator 26. The power mechanism 22 comprises two fans, and fans are arranged in the first box 211 and the second box 212. The cooling medium is a cooling air flow, and the fan drives the cooling air flow to the dispersing structure 12 so that the dispersing structure 12 is located in the flow path of the cooling air flow of the power conversion box 21.

Through the arrangement, under the action of the power mechanism 22, air flows can enter the first box 211 and the second box 212 through the first inlet and the second inlet respectively, the air flows in the first box 211 and the second box 212 can enter the air duct shell 50 through the two air inlets 51 respectively to be converged and blown to the cooling structure 12 through the air outlet 52, so that cooling air flow of the second box 212 can radiate the reactor 27, air flow in the first box 211 can radiate the condenser 25, air flow blown out from the air outlet 52 can radiate the cooling structure 12, and therefore the heat radiation effect of the transformer box can be improved under the condition that the inversion and boosting integrated machine does not additionally increase a fan, and the cost and the power consumption of the inversion and boosting integrated machine are reduced.

In the fifth embodiment of the present utility model, the condenser 25 and the evaporator 26 are an evaporation end and a condensation end of the liquid cooling system, respectively.

Specifically, in the fifth embodiment of the present utility model, the semiconductor power device 24 is cooled at the evaporator 26, the heat thereof is carried away by the external wind through the condenser 25 of the first case 211, and the reactor 27 is placed in the second case 212 to be forced air-cooled by a fan.

Specifically, as shown in fig. 7 and 8, in the fifth embodiment of the present utility model, the air duct housing 50 includes a first housing section and a second housing section that are communicated and disposed at an included angle to form an L-shaped air duct housing 50, where the first housing section and the second housing section are respectively communicated with the first box 211 and the second box 212, and an outlet of the first housing section is disposed toward the dispersing structure 12, and in one embodiment, the air duct housing 50 may also be V-shaped.

In the fifth embodiment of the present utility model, as shown in fig. 7, the air outlet 52 may be located above the scattered structure 12, or may be located below the scattered structure 12 as shown in fig. 8.

Example six

As shown in fig. 9 and 10, the difference between the sixth embodiment of the present utility model and the fifth embodiment is that the first inlet of the first box 211 and the second inlet of the second box 212 are both communicated with the air outlet 52 of the air duct housing 50, and the air inlet 51 of the air duct housing 50 is disposed towards the scattering structure.

Through the arrangement, under the action of the power mechanism, cooling air flows through the sheet dispersing structure 12, enters the air duct shell 50 from the air inlet 51, then enters the first box 211 and the second box 212 through the air outlet 52 respectively and is discharged from the first outlet and the second outlet respectively, so that the air flow in the second box 212 can radiate the reactor 27, the cooling air flowing through the sheet dispersing structure 12 can radiate the sheet dispersing structure 12, and thus the oil in the oil tank 11 becomes high-low voltage winding and the iron core to radiate, and the radiating effect of the transformer box can be increased under the condition that the inversion boosting integrated machine does not additionally increase a fan, so that the radiating cost and the power consumption of the inversion boosting integrated machine are reduced.

In the sixth embodiment of the present utility model, as shown in fig. 9, the air inlet 51 may be located above the scattering structure 12, or may be located below the scattering structure 12 as shown in fig. 10.

Other structures of the sixth embodiment are the same as those of the fifth embodiment, and will not be described here again.

Example seven

As shown in fig. 11, the seventh embodiment of the present utility model is different from the fifth embodiment in that the first housing 211 has a first inlet and a first outlet, the second housing 212 has a second inlet and a second outlet, the two air duct shells 50 are respectively located at a first side and a second side of the dispersing structure 12, the air inlet 51 of the air duct shell 50 located at the first side is communicated with the first outlet of the first housing 211, the air outlet 52 of the air duct shell 50 located at the first side is disposed toward the dispersing structure 12, and the air outlet 52 of the air duct shell 50 located at the second side is communicated with the second inlet of the second housing 212, and the air inlet 51 of the air duct shell 50 located at the second side is disposed toward the dispersing structure 12.

Through the arrangement, under the action of the power mechanism 22, the cooling air flows through the first inlet and enters the first box 211, then enters the air duct shell 50 on the first side through the first outlet, and is blown to the scattered structure 12 from the air outlet 52 of the air duct shell 50 on the first side, so as to radiate the scattered structure 12, the air flowing through the scattered structure 12 flows into the second box 212 through the air duct shell 50 on the second side, and can radiate the second box 212 and the reactor 27 therein, thus, under the condition that the inversion boosting integrated machine does not additionally increase a fan, the radiating effect of the voltage transformation box can be increased, and the radiating cost and the power consumption of the inversion boosting integrated machine are reduced.

Further, external wind is forced to convect with transformer oil in the scattered structure 12, then enters the second box 212 provided with the reactor to finish air cooling and heat dissipation of the reactor 27, and the air outlet provided with the condenser 25 is synchronously led to the scattered structure 12, so that the heat dissipation effect of the transformer box is further improved.

Other structures of the seventh embodiment are the same as those of the fifth embodiment, and will not be described here again.

Example eight

As shown in fig. 12, the eighth embodiment of the present utility model is different from the fifth embodiment in that the second outlet of the second box 212 is communicated with the first inlet of the first box 211, the first outlet of the first box 211 is communicated with the air inlet 51 of the air duct housing 50, and the air outlet 52 is disposed toward the dispersing structure 12.

Through the arrangement, under the action of the power mechanism 22, the air flow enters the first box body 211 through the second box body 212, then enters the air duct shell 50 through the first outlet of the first box body 211 and the air inlet 51, and the air flow in the air duct shell 50 is guided to the scattered structure 12 through the air outlet 52, so that the heat dissipation of the reactor 27 and the oil tank 11 is completed. In this way, the first case 211 and the second case 212 are connected in series, so that the cooling air flow and the evaporator 26 can simultaneously dissipate heat of the semiconductor power device 24 in the second case 212, thereby improving the heat dissipation effect.

Other structures of the eighth embodiment are the same as those of the fifth embodiment, and will not be described here again.

Example nine

As shown in fig. 13, the difference between the ninth embodiment of the present utility model and the eighth embodiment is that the second inlet of the second housing 212 is communicated with the first outlet of the first housing 211, the first inlet of the first housing 211 is communicated with the air outlet 52 of the air duct housing 50, and the air inlet 51 of the air duct housing 50 is disposed toward the scattered structure. In this way, the cooling air flow can flow through the fin-scattering structure 12 first, then flows into the second box 212 through the air duct shell 50 and the first box 211, and the cooling air flow and the evaporator 26 can also radiate the heat of the semiconductor power device 24 in the second box 212 at the same time, so as to improve the heat radiation effect.

Other structures of the ninth embodiment are the same as those of the eighth embodiment, and will not be described here again.

Examples ten

As shown in fig. 14, in the tenth embodiment of the present utility model, the power converter adopts a heat dissipation mode of liquid cooling, thermosiphon or vapor compression refrigeration, the power conversion box 21 includes a first box 211 and a second box 212, the first box 211 is provided with a condenser 25, the second box 212 is provided with an evaporator 26 for dissipating heat of the semiconductor power device 24, the air inlet 51 is communicated with the first box 211, and the air outlet 52 is arranged towards the sheet dissipation structure 12. Wherein, a fan is arranged in the first box 211, and the reactor 27 is positioned in the oil tank 11.

Through the arrangement, under the action of the power mechanism 22, the cooling air flow enters the first box 211 to radiate heat of the condenser 25, then enters the air duct shell 50 through the air inlet 51, the air flow in the air duct shell 50 is led to the scattered structure 12 through the air outlet 52, and the transformer oil in the scattered structure 12 is changed from natural cooling into forced convection, so that the heat radiation of the transformer box and the reactor 27 is completed.

Specifically, in the tenth embodiment of the present utility model, the reactor 27 is located in the oil tank 11, so that the heat dissipation pattern of the reactor 27 and the oil-to-high-low voltage winding and the iron core is identical.

Specifically, in the tenth embodiment of the present utility model, the semiconductor power device 24 completes cooling at the evaporator 26, and its heat is taken away by the cooling air flow through the condenser 25 placed in the first case 211.

In the tenth embodiment of the present utility model, the condenser 25 and the evaporator 26 are an evaporation end and a condensation end of the liquid cooling system, respectively.

The cooling medium is a cooling air flow, and the fan drives the cooling air flow to the dispersing structure 12 so that the dispersing structure 12 is located in the flow path of the cooling air flow of the power conversion box 21.

Example eleven

As shown in fig. 15, the eleventh embodiment of the present utility model is different from the tenth embodiment in that the air outlet 52 communicates with the inside of the first case 211, and the air inlet 51 is disposed toward the dispersing structure 12.

Through the above arrangement, under the action of the power mechanism 22, the cooling air flows through the fin-and-fin structure 12 and enters the air duct shell 50 from the air inlet 51, and then the cooling air in the air duct shell 50 flows through the air outlet 52 and enters the first box 211, so that the transformer oil in the fin-and-fin structure 12 is changed from natural cooling into forced convection, and the heat dissipation of the transformer box and the reactor 27 is completed.

Other structures of the eleventh embodiment are the same as those of the tenth embodiment, and will not be described here again. It should be noted that all the above schemes are applicable to the case of combining a plurality of Power Converters (PCS) with one oil transformer. And by additionally arranging the air duct shell 50, the air outlet (or air inlet) of the Power Converter (PCS) is led to the scattered structure 12, so that the mutual influence between the air outlets when the power converter PCS is in multiple parallel operation is avoided.

From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects that by locating at least part of the scattered structure on the flow path of the cooling airflow of the power conversion box, the power conversion box and the oil tank can share the power mechanism for heat dissipation, so that under the condition that the inversion and boosting integrated machine does not additionally increase a fan, the scattered structure of the voltage transformation box is changed from natural cooling into forced convection, thereby achieving simultaneous heat dissipation of the power conversion box and the voltage transformation box, and avoiding the increase of noise of the whole inversion and boosting integrated machine due to the increase of the fan.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (13)

1. The utility model provides an contravariant heat abstractor for boost all-in-one which characterized in that includes:

the transformer tank comprises an oil tank (11) and a sheet dispersion structure (12) connected to the oil tank (11), wherein the sheet dispersion structure (12) is provided with an oil liquid channel communicated with the interior of the oil tank (11), the oil liquid channel and the interior of the oil tank (11) are both configured to be capable of being filled with transformer oil, and the oil tank (11) is used for accommodating a winding structure;

A power conversion box (21) for accommodating a semiconductor power device (24);

A power mechanism (22) for driving a cooling air flow to flow into the power conversion box (21) to dissipate heat from the power conversion box (21);

Wherein at least part of the diffusing structure (12) is located in the flow path of the cooling air flow of the power conversion box (21).

2. The heat dissipating device for an inversion and boost integrated machine according to claim 1, further comprising an air duct case (50) for passing the cooling air flow, the air duct case (50) having an air inlet (51) and an air outlet (52), one of the air inlet (51) and the air outlet (52) being in communication with the inside of the power conversion case (21), the other of the air inlet (51) and the air outlet (52) being disposed toward the sheet-dispersion structure (12).

3. The heat dissipating device for an inversion and boost integrated machine according to claim 2, further comprising a heat sink (23) located inside the power conversion box (21), the heat sink (23) being configured to dissipate heat of a semiconductor power device (24).

4. A heat dissipating device for an inverter and booster integrated machine according to claim 3, wherein a vent (28) is provided on the power conversion box (21), and the vent (28) and the duct case (50) are located on both sides of the heat sink (23).

5. The heat dissipating device for an inversion and boost integrated machine according to claim 2, wherein the power conversion box (21) comprises a first box (211) and a second box (212), a condenser (25) is provided in the first box (211), and an evaporator (26) for dissipating heat of the semiconductor power device (24) is provided in the second box (212);

The first box body (211) and the second box body (212) are communicated with the air duct shell (50).

6. The heat dissipating device for an inverter and booster integrated machine according to claim 5, wherein the first case (211) has a first inlet and a first outlet, and the second case (212) has a second inlet and a second outlet;

The first outlet of the first box body (211) and the second outlet of the second box body (212) are communicated with the air inlet (51) of the air duct shell (50), and the air outlet (52) is arranged towards the scattered structure (12), or

The first inlet of the first box body (211) and the second inlet of the second box body (212) are communicated with the air outlet (52) of the air duct shell (50), and the air inlet (51) of the air duct shell (50) is arranged towards the scattered structure (12).

7. The heat dissipating device for an inverter and booster integrated machine according to claim 5, wherein the first case (211) has a first inlet and a first outlet, and the second case (212) has a second inlet and a second outlet;

The second outlet of the second box body (212) is communicated with the first inlet of the first box body (211), the first outlet of the first box body (211) is communicated with the air inlet (51) of the air duct shell (50), and the air outlet (52) is arranged towards the scattered structure (12), or

The second inlet of the second box body (212) is communicated with the first outlet of the first box body (211), the first inlet of the first box body (211) is communicated with the air outlet (52) of the air duct shell (50), and the air inlet (51) of the air duct shell (50) is arranged towards the scattered structure (12).

8. The heat dissipating device for an inverter and booster integrated machine according to claim 5, wherein the first case (211) has a first inlet and a first outlet, and the second case (212) has a second inlet and a second outlet;

The number of the air duct shells (50) is two, and the two air duct shells (50) are respectively positioned on the first side and the second side of the sheet dispersing structure (12);

An air inlet (51) of the air duct shell (50) positioned at the first side is communicated with a first outlet of the first box body (211), and an air outlet (52) of the air duct shell (50) positioned at the first side is arranged towards the scattering structure (12);

An air outlet (52) of the air duct shell (50) located at the second side is communicated with a second inlet of the second box body (212), and an air inlet (51) of the air duct shell (50) located at the second side is arranged towards the scattering structure (12).

9. The heat dissipating device for an inversion and boost integrated machine according to claim 2, wherein the power conversion box (21) comprises a first box (211) and a second box (212), a condenser (25) is provided in the first box (211), and an evaporator (26) for dissipating heat of the semiconductor power device (24) is provided in the second box (212);

One of the air inlet (51) and the air outlet (52) is communicated with the first box body (211), and the other of the air inlet (51) and the air outlet (52) is arranged towards the scattered structure (12).

10. The heat dissipating device for an inversion and boost integrated machine according to any one of claims 2 to 9, further comprising a heat dissipating structure including:

a mounting member (55) mounted to the duct case (50);

The plurality of radiating pieces (56) are arranged on the mounting piece (55) at intervals, one end of each radiating piece (56) stretches into the air duct shell (50), and the other end of each radiating piece (56) is located outside the air duct shell (50).

11. The heat dissipating device for an inversion-boost integrated machine according to any one of claims 2 to 9, wherein the power mechanism (22) includes a blower provided on at least one of the sheet-scattering structure (12), the power conversion box (21), the duct case (50), and the duct case (50).

12. The utility model provides an contravariant boost all-in-one which characterized in that includes:

The heat dissipating device for an inversion boosting integrated machine according to any one of claims 1 to 11;

A winding structure located within the tank (11);

And a semiconductor power device (24) mounted in the power conversion box (21).

13. The inversion and boost integrated machine according to claim 12, further comprising a reactor (27), the reactor (27) being located in the power conversion tank (21) or in the oil tank (11).