CN220776354U

CN220776354U - Power equipment

Info

Publication number: CN220776354U
Application number: CN202322329369.4U
Authority: CN
Inventors: 李辉; 黄彭发; 魏世民; 汪晓刚
Original assignee: Sungrow Power Supply Co Ltd
Current assignee: Sungrow Power Supply Co Ltd
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2024-04-12
Anticipated expiration: 2033-08-28

Abstract

The present application discloses a power device, which belongs to the field of heat dissipation technology of electrical equipment. In the power device: the cabinet defines a first compartment and a second compartment separated, the protection level of the first compartment is lower than that of the second compartment, the side wall of the first compartment is provided with an air inlet and an air outlet, and the air inlet and the air outlet are located on the opposite side of the cabinet; the first condenser and the second condenser are installed in the first compartment, the distance between the first condenser and the second condenser gradually increases or decreases along the direction from the liquid outlet to the air inlet, and the air ducts of the first condenser and the second condenser are arranged horizontally; the evaporator is installed in the second compartment, the air outlet of the evaporator is connected to the air inlet of the first condenser and the second condenser through an air pipe, and the liquid inlet of the evaporator is connected to the liquid outlet of the first condenser and the second condenser through a liquid pipe. By setting the air inlet and outlet on the opposite side and the V-shaped design of the condenser, the heat dissipation effect is optimized, the power density is improved, and the cabinet processing difficulty and manufacturing cost are reduced.

Description

Power equipment

Technical Field

The application belongs to the technical field of electric equipment heat dissipation, and particularly relates to power equipment.

Background

The power module is used as a core part of the power equipment, the stable operation of the power module is a necessary condition for the normal operation of the equipment, and the heat dissipation is a difficulty in designing the power module.

The natural cooling is generally applied to occasions with smaller power consumption, the power equipment with compact size is used less, the liquid cooling equipment is mostly applied to occasions with high protection level and large power consumption, the liquid cooling heat dissipation also needs to be additionally provided with a liquid cooling unit, the probability of leakage or blockage of a liquid cooling plate and a pipeline is greatly increased along with the increase of the service life of the liquid cooling equipment, the investment requirement on the maintenance of a later product is higher, the risk of leakage of the liquid cooling equipment is avoided in air cooling heat dissipation, but a heat dissipation runner usually adopts a direct cooling mode and a mode of increasing the area of a radiator, so that the size of a power module is larger and the protection level of a cabinet is lower.

In the related art, a scheme of phase change cooling between liquid cooling and air cooling is proposed, heat of a power module is brought out by utilizing physical phenomena of medium evaporation heat absorption and condensation heat dissipation, a reasonable sealing cavity structure is matched, the medium is enabled to be continuously circulated in the cavity, the heat of the power module is guaranteed to be continuously emitted, but for the existing scheme of phase change heat dissipation power module, the defects of complex design of a heat dissipation air duct of a complete machine, larger device performance redundancy and larger interface differentiation of the existing power equipment exist due to unreasonable placement mode of a condenser.

Disclosure of Invention

The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the power equipment reduces air duct resistance, optimizes heat dissipation effect, improves heat dissipation power density in unit volume to the greatest extent, increases the utilization rate of the condenser, and reduces the complexity of cabinet processing and the manufacturing cost of the power equipment.

In a first aspect, the present application provides a power device comprising:

the cabinet body is provided with a first cabin and a second cabin which are separated, the protection level of the first cabin is lower than that of the second cabin, an air inlet and an air outlet are formed in the side wall of the first cabin, and the air inlet and the air outlet are located on the opposite sides of the cabinet body;

the first condenser and the second condenser are arranged in the first bin, the distance between the first condenser and the second condenser is gradually increased or gradually decreased along the direction from a liquid outlet to an air inlet between the first condenser and the second condenser, and the air channels of the first condenser and the second condenser are horizontally arranged;

the evaporator is arranged in the second bin, the air outlets of the evaporator are respectively communicated with the air inlets of the first condenser and the second condenser through air pipes, and the liquid inlets of the evaporator are respectively communicated with the liquid outlets of the first condenser and the second condenser through liquid pipes.

According to the power equipment of this application, through above-mentioned set up air intake and air outlet and the local high protection design of cabinet body at first storehouse contralateral side, the V type design of cooperation first condenser and second condenser for air intake and air outlet form the convection current, accelerate the speed of air flow, thereby accelerate heat transfer rate, strengthen the heat dispersion of whole radiator, the wind channel resistance is more balanced, increase heat transfer area, optimize the radiating effect, and reduce the volume of condenser, furthest promotes the heat dissipation power density in the unit volume, the utilization ratio of increase condenser, the complexity of cabinet body processing has been reduced simultaneously and power equipment's manufacturing cost.

According to one embodiment of the present application, the power device further comprises:

and the fan is arranged at the air inlet.

the condenser bounding wall, the condenser bounding wall is including the first section, second section and the third section that link to each other in order, first section install in first condenser and second condenser deviate from one side of evaporimeter, the second section install in first condenser and second condenser are close to one side of air inlet, the third section install in first condenser and second condenser are close to one side of evaporimeter, the fan install in the second section.

the front cover plate is arranged between the fan and the cabinet body;

and the sealing piece is arranged between the front cover plate and the cabinet body.

the IGBT modules are attached to the surface of the evaporator;

the connecting row is arranged among the plurality of IGBT modules;

and the composite bus is electrically connected with the plurality of IGBT modules.

and the capacitor pool assembly is arranged on the composite bus and is electrically connected with the composite bus.

the evaporator, the first condenser and the second condenser comprise a plurality of groups corresponding to each other one by one, wherein each group is provided with the capacitor pool assembly.

the third condenser and the fourth condenser are arranged in the first bin, air inlets of the third condenser and the fourth condenser are communicated with an air outlet of the evaporator, and liquid outlets of the third condenser and the fourth condenser are communicated with a liquid inlet of the evaporator.

According to one embodiment of the present application, the air inlet of the third condenser is in communication with the air inlet of the first condenser, and the air inlet of the fourth condenser is in communication with the air inlet of the second condenser.

According to one embodiment of the present application, the distance between the third condenser and the first condenser gradually increases or gradually decreases along the direction from the air inlet to the liquid outlet between the third condenser and the first condenser; the distance between the fourth condenser and the second condenser is gradually increased or gradually decreased along the direction from the air inlet to the liquid outlet.

According to one embodiment of the present application, the third condenser and the first condenser are arranged in parallel, and the fourth condenser and the second condenser are arranged in parallel.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, wherein:

fig. 1 is one of schematic structural diagrams of a power device according to an embodiment of the present application;

FIG. 2 is a second schematic diagram of a power device according to an embodiment of the present disclosure;

fig. 3 is one of schematic structural diagrams of a power module of a power device according to an embodiment of the present disclosure;

fig. 4 is an exploded schematic diagram of a power module of a power device according to an embodiment of the present disclosure;

FIG. 5 is a second schematic diagram of a power module of a power device according to an embodiment of the present disclosure;

FIG. 6 is a third schematic diagram of a power module of a power device according to an embodiment of the present disclosure;

FIG. 7 is a fourth schematic diagram of a power module of a power device according to an embodiment of the present disclosure;

FIG. 8 is a third schematic diagram of a power device according to an embodiment of the present disclosure;

FIG. 9 is a fourth schematic diagram of a power device according to an embodiment of the present disclosure;

FIG. 10 is a fifth schematic diagram of a power module of a power device according to an embodiment of the present disclosure;

FIG. 11 is a schematic diagram of a power module of a power device according to an embodiment of the present disclosure;

FIG. 12 is a schematic diagram of a power module of a power device according to an embodiment of the present disclosure;

FIG. 13 is a schematic diagram of a power module of a power device according to an embodiment of the present disclosure;

fig. 14 is a diagram illustrating a power module of a power device according to an embodiment of the present disclosure.

Reference numerals:

the power plant 100, the first condenser 120, the second condenser 130, the evaporator 140, the blower 150, the front cover plate 170, the sealing member 180, the third condenser 190, the fourth condenser 210, the air pipe 220, the liquid pipe 230;

a cabinet 110, a first bin 111, a second bin 112;

a condenser shroud 160, a first section 161, a second section 162, a third section 163;

IGBT module 240, connection row 250, composite busbar 260, capacitive pool assembly 270;

a condenser base 280, a condenser guard 290, an evaporator base 310, an evaporator guard 320, and a fan mount 330.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

The present application discloses a power device 100.

A power device 100 according to an embodiment of the present application is described below with reference to fig. 1-14.

In some embodiments, as shown in fig. 1-2 and 8-9, the power device 100 includes: the cabinet 110, the first condenser 120, the second condenser 130, and the evaporator 140.

The cabinet 110 defines a first compartment 111 and a second compartment 112 that are separated, the protection level of the first compartment 111 is lower than that of the second compartment 112, the sidewall of the first compartment 111 may be provided with an air inlet and an air outlet, and the air inlet and the air outlet are located at opposite sides of the cabinet 110.

The cabinet 110 may be used to mount the power module as a unitary frame, and the cabinet 110 may be made of a plastic material including, but not limited to, PVC (Polyvinyl chloride ), PI (Polyimide), PS (Polystyrene), PC (Polycarbonate), PA (Polyamide), etc., or a metal material including, but not limited to, aluminum alloy, aluminum magnesium alloy, or stainless steel, etc., such as, in some embodiments, the cabinet 110 is made of a plastic material.

The first condenser 120 and the second condenser 130 are installed at the first bin 111, the distance between the first condenser 120 and the second condenser 130 is gradually increased or gradually decreased along the direction from the liquid outlet to the air inlet therebetween, and the air channels of the first condenser 120 and the second condenser 130 may be horizontally arranged.

As shown in fig. 3 to 4 and 10, the combination of the first condenser 120 and the second condenser 130 may be horn-shaped, specifically, the liquid outlet of the first condenser 120 may be close to the liquid outlet of the second condenser 130, the air inlet of the first condenser 120 may be far away from the air inlet of the second condenser 130, or the liquid outlet of the first condenser 120 may be far away from the liquid outlet of the second condenser 130, and the air inlet of the first condenser 120 may be close to the air inlet of the second condenser 130.

In this embodiment, as shown in fig. 3 to 4 and 10, the openings of the first and second condensers 120 and 130 may be oriented in a horizontal direction, and the air channels of the first and second condensers 120 and 130 are oriented in a horizontal direction.

In other embodiments, the openings of the first condenser 120 and the second condenser 130 may be upward, and the air channels of the first condenser 120 and the second condenser 130 are in a vertical direction.

The evaporator 140 is mounted in the second bin 112, the air outlets of the evaporator 140 are respectively communicated with the air inlets of the first condenser 120 and the second condenser 130 through air pipes 220, and the liquid inlets of the evaporator 140 are respectively communicated with the liquid outlets of the first condenser 120 and the second condenser 130 through liquid pipes 230.

As shown in fig. 4 and 8, the inlet and outlet of the first condenser 120 and the inlet and outlet of the second condenser 130 are independently provided, in other words, the air outlet of the evaporator 140 is communicated with the air inlet of the first condenser 120 through the air pipe 220, the air outlet of the evaporator 140 is communicated with the air inlet of the second condenser 130 through the other air pipe 220, the liquid inlet of the evaporator 140 is communicated with the liquid outlet of the first condenser 120 through the liquid pipe 230, and the liquid inlet of the evaporator 140 is communicated with the liquid outlet of the second condenser 130 through the other liquid pipe 230.

As shown in fig. 3-5 and 10-11, the power device 100 further includes a condenser base 280, a condenser guard 290, an evaporator base 310, and an evaporator guard 320, the first condenser 120 and the second condenser 130 may be mounted on the condenser base 280, the condenser guard 290 may be disposed on a side of the first condenser 120 and the second condenser 130 near the liquid outlet, the evaporator 140 may be mounted on the evaporator base 310, and the evaporator guard 320 may be disposed on a side of the evaporator 140.

It will be appreciated that the evaporator 140 need not be heat exchanged with the external environment, so the evaporator 140 is processed according to a weak corrosion resistance standard, while the condenser needs to be heat exchanged with the external environment, so the condenser is processed according to a strong corrosion resistance standard, and the cabinet 110 may be designed with a local high protection, i.e. the protection level of the first compartment 111 is lower than the protection level of the second compartment 112, based on the different requirements of the processed condenser and the evaporator 140 for water resistance and dust resistance, and the first condenser 120 and the second condenser 130 may be sprayed, electrophoresis or other processing techniques to improve the environment suitability of the condenser.

In practical implementation, as shown in fig. 1-2 and fig. 8-9, the first bin 111 may be communicated with an external environment, the second bin 112 may be subjected to sealing treatment, the air pipe 220 and the liquid pipe 230 may be inserted between the first bin 111 and the second bin 112, when the power device 100 is in a working state, a power device in the power device 100 may release a large amount of heat, a low-temperature liquid refrigerant in the evaporator 140 may absorb the heat released by the power device, and the low-temperature low-pressure liquid refrigerant absorbs the heat and evaporates to become a high-temperature gaseous refrigerant, based on a thermosiphon principle, the high-temperature gaseous refrigerant may rise to the first condenser 120 and the second condenser 130, cold air in the external environment may enter the first bin 111 through an air inlet, the cold air may cool the high-temperature gaseous refrigerant by using a heat dissipation fin and a micro-channel, the high-temperature liquid refrigerant may be condensed into a low-temperature liquid refrigerant after heat release, the hot air may leave the first bin 111 through an air inlet and leave the first bin 111 on the opposite side, and may fall back into a complete heat dissipation loop through the low-temperature liquid refrigerant.

The power device 100 may be an electrical energy conversion device, and may specifically include, but is not limited to, a current transformer, an inverter, a transformer, a direct current converter, or the like, such as, in some embodiments, the power device 100 is a current transformer.

The power equipment 100 that this embodiment provided sets up air intake and air outlet and the local high protection design of cabinet body 110 at first storehouse 111 contralateral side through the aforesaid for air intake and air outlet form the convection current in cooperation with the V type design of first condenser 120 and second condenser 130, thereby accelerate the speed of air flow, thereby accelerate heat transfer rate, strengthen the heat dispersion of whole radiator, the wind channel is more balanced, increase heat transfer area, optimize the radiating effect, and reduce the volume of condenser, furthest promotes the heat dissipation power density in the unit volume, increase the utilization ratio of condenser, the complexity of cabinet body 110 processing has been reduced simultaneously and the manufacturing cost of power equipment 100.

In some embodiments, as shown in fig. 1-4 and 6-12, the power device 100 may further include: a blower 150.

The blower 150 may be mounted to the intake.

The blower 150 may be mounted to a side wall of the first bin 111, or the blower 150 may be mounted to a condenser, or the blower 150 may be mounted inside the first bin 111 and spaced apart from the condenser, such as, in some embodiments, the blower 150 is mounted at the flares of the first condenser 120 and the second condenser 130, as shown in fig. 1-4 and 6-12.

In actual implementation, the fan 150 can flexibly select the type according to the heat dissipation requirement, the cabinet body 110 can be provided with a shutter to realize air inlet and outlet, the fan 150 can rotate to accelerate the air flow speed, cold air in the external environment can enter the first bin 111 through the air inlet, the cold air can exchange heat with the first condenser 120 and the second condenser 130, specifically, the cold air can cool the high-temperature gaseous refrigerant by utilizing the heat dissipation fins and the micro-channels, the high-temperature gaseous refrigerant can be condensed into the low-temperature liquid refrigerant after releasing heat, and the hot air can leave the first bin 111 through the air outlet arranged opposite to the air inlet.

The power equipment 100 that this application embodiment provided, through the setting of above-mentioned fan 150, the design of cooperation air intake and air outlet contralateral arrangement for air intake and air outlet form convection current, thereby accelerate the speed of air flow, thereby accelerate the heat transfer rate, the heat dispersion of whole radiator of reinforcing, the wind channel heat dissipation around simultaneously, the runner is short, the wind channel resistance is little, thereby reduce the performance parameter requirement to fan 150, be favorable to cost control, and on the different faces of the dislocated cabinet body 110 of air inlet and outlet, the space dimension has directly been pulled open, the air barrier that increases because of avoiding the air current short circuit has been omitted.

In some embodiments, as shown in fig. 4, the power device 100 may further include: condenser shroud 160.

The condenser shroud 160 may include a first section 161, a second section 162, and a third section 163 connected in sequence, the first section 161 may be mounted on a side of the first condenser 120 and the second condenser 130 facing away from the evaporator 140, the second section 162 may be mounted on a side of the first condenser 120 and the second condenser 130 near the air inlet, the third section 163 may be mounted on a side of the first condenser 120 and the second condenser 130 near the evaporator 140, and the blower 150 may be mounted on the second section 162.

In this embodiment, as shown in fig. 4, the condenser shroud 160 may be blocked between the first condenser 120 and the second condenser 130, the first section 161 and the third section 163 may be bent with respect to the second section 162, the second section 162 may be installed at the flared portions of the first condenser 120 and the second condenser 130, the second section 162 may be fixed to the fan 150 by a bolt connection or other connection manner, the second section 162 may be provided with an opening so as to facilitate air intake or air outtake, the fan 150 may face either one of the air intake or the air outtake, that is, the fan 150 may be provided as an air intake surface of the condenser, the heat dissipating fins of the first condenser 120 and the second condenser 130 may be provided as an air outtake surface of the condenser, or the fan 150 may be provided as an air intake surface of the condenser, and the heat dissipating fins of the first condenser 120 and the second condenser 130 may be provided as an air intake surface of the condenser, without limitation herein.

According to the power equipment 100 provided by the embodiment of the application, through the arrangement of the condenser coaming 160, the fan 150 is fixedly installed, so that the sum of distances from any positions on the first condenser 120 and the second condenser 130 to the air inlet surface and the air outlet surface is similar, the flow resistance is similar, the flow is more balanced, compared with the traditional unilateral air inlet and bilateral air inlet, the utilization rate of the condenser is greatly improved, the design redundancy of the condenser is reduced, the manufacturing cost is reduced, the integration level of the whole machine is improved, the installation and the maintenance are convenient, the appearance interface of the existing power equipment 100 is inherited, and the externally hung accessory is not required to be increased.

In some embodiments, as shown in fig. 3-4 and 10, the power device 100 may further include: a front cover plate 170 and a seal 180.

The front cover 170 may be installed between the blower 150 and the cabinet 110; the seal 180 may be installed between the front cover 170 and the cabinet 110.

As shown in fig. 3-5 and 10-11, the power device 100 may further include a fan mount 330, where the fan mount 330 may be disposed on a side of the second section 162 facing away from the first condenser 120 and the second condenser 130, where the fan mount 330 may be provided with a circular relief opening, where the fan 150 may extend through the relief opening of the fan mount 330, where the connection between the fan 150 and the fan mount 330 may include, but is not limited to, a snap-fit connection, a threaded connection, or an adhesive connection, such as, for example, in some embodiments, a snap-fit connection between the fan 150 and the fan mount 330.

In this embodiment, as shown in fig. 1 and 8, since the fan 150 faces either the air inlet or the air outlet, the cabinet 110 may be provided with a shutter to realize air inlet and outlet, tiny particles in the external environment may be caused to enter the first bin 111 when the fan 150 is turbulent, and a gap exists between the fan 150 and the cabinet 110 without the front cover 170 and the sealing member 180, so that the front cover 170 and the sealing member 180 are provided between the shutter of the cabinet 110 and the fan 150, the sealing member 180 may be an elastic sealing ring, the front cover 170 may be used to fix the sealing member 180, and the sealing member 180 is elastically pressed between the periphery of the shutter and the front cover 170 to fill the gap between the inner wall of the cabinet 110 and the fan 150.

The power equipment 100 provided by the embodiment of the application, through the setting of the front cover plate 170 and the sealing member 180, the sealing between the inner wall of the cabinet body 110 and the fan 150 is realized, and under the condition that the first bin 111 is communicated with the external environment and performs heat exchange, the impurity of the external environment is reduced as much as possible, and the impurity enters the first bin 111, so that the protection capability of the first bin 111 is improved, and the service lives of the first condenser 120 and the second condenser 130 are prolonged.

In some embodiments, as shown in fig. 1-2 and 8-11, the power device 100 may further include: a connection row 250, a composite busbar 260 and a plurality of IGBT modules 240 (insulated gate bipolar transistors).

The plurality of IGBT modules 240 may be attached to the surface of the evaporator 140; the connection row 250 may be disposed between the plurality of IGBT modules 240; composite busbar 260 may be electrically connected with a plurality of IGBT modules 240; the capacitive cell assembly 270 may be mounted to the composite busbar 260, and the capacitive cell assembly 270 may be electrically connected to the composite busbar 260.

In this embodiment, as shown in fig. 1-5 and 8-11, the power device 100 may include 12 IGBT modules 240, the 12 IGBT modules 240 may be divided into 4 groups, each group may include 3 IGBT modules 240, wherein interfaces of 2 IGBT modules 240 may be electrically connected to the composite bus 260, and 1 IGBT module 240 may be electrically connected to the 2 IGBT modules 240 through the connection rows 250, respectively

The plurality of IGBT modules 240 may be attached to the evaporator 140 by bolting or other connection, and the connection bars 250, the connection bars 250 may be made of copper, aluminum or other materials, which is not limited herein.

In actual implementation, when the IGBT module 240 works, heat loss is transferred to the low-temperature liquid refrigerant inside the evaporator 140, the low-temperature liquid refrigerant is heated and evaporated into the high-temperature gaseous refrigerant, the high-temperature gaseous refrigerant passes through the air pipe 220 and flows into the first condenser 120 and the second condenser 130, and fills in the sealed cavities of the first condenser 120 and the second condenser 130, the external cold air flows through the first condenser 120 and the second condenser 130 to take away heat, the high-temperature gaseous refrigerant inside the condenser releases heat and returns to the liquid state, and the low-temperature liquid refrigerant flows back to the evaporator 140 through the liquid pipe 230 under the action of gravity, so that the heat loss of the IGBT is taken away, and heat dissipation is completed.

The power equipment 100 provided by the embodiment of the application realizes the assembly of the electrical components through the arrangement of the connection row 250, the composite bus 260 and the plurality of IGBT modules 240, so that the IGBT modules 240 exchange heat with the evaporator 140 in a direct contact mode, the heat dissipation effect is optimized, and meanwhile, the electrical components and the evaporator 140 are integrated into a whole, and the volume utilization rate of the whole machine is improved.

In some embodiments, as shown in fig. 1-2 and 8-11, the power device 100 may further include: a capacitive pool assembly 270.

The capacitive cell assembly 270 may be mounted to the composite busbar 260, and the capacitive cell assembly 270 may be electrically connected to the composite busbar 260.

In this embodiment, as shown in fig. 1-5 and 8-11, the capacitive pool assembly 270 may include a plurality of capacitors, the cross-section of which may be in contact with the composite busbar 260, and the capacitive pool assembly 270 may be mounted to the composite busbar 260 by bolting or other means of connection, and when maintenance of the power module is required, the evaporator 140, the first condenser 120 and the second condenser 130 may be removed, at which time the entire capacitive pool assembly 270 is also removed together for maintenance.

According to the power equipment 100 provided by the embodiment of the application, through the arrangement of the capacitor pool assembly 270, the assembly of the capacitor pool assembly 270 is realized, so that the whole capacitor pool assembly 270 can be taken out together when a related operator maintains the power module, the working hours required when the power module is maintained are shortened, and meanwhile, the capacitor pool assembly 270, the electric assembly and the evaporator 140 are integrated into a whole, and the volume utilization rate of the whole machine is improved.

In some embodiments, as shown in fig. 9, the power device 100 may further include: a capacitive pool assembly 270.

The evaporator 140, the first condenser 120, and the second condenser 130 may include a one-to-one correspondence of multiple groups, each of which may be provided with a capacitive pool assembly 270.

The plurality of groups may be two or more, for example, in some embodiments, as shown in fig. 2 and 9, the evaporator 140, the first condenser 120, and the second condenser 130 may include 3 groups in a one-to-one correspondence

In this embodiment, as shown in fig. 9, the composite buses 260 of each group are independently arranged, the composite buses 260 can be in a U shape, each group of corresponding capacitor pool assemblies 270 can be accommodated in the notch of the U-shaped composite buses 260, and in case of maintenance, the relevant operators can separate and detach each group, and at this time, the corresponding capacitor pool assemblies 270 in each group can also be independently and jointly taken out.

According to the power equipment 100 provided by the embodiment of the application, through the dispersed arrangement of the capacitor pool assemblies 270, the capacitor pool assemblies 270 in each group are mutually independent, so that the corresponding capacitor pool assemblies 270 can be taken out together when related operators maintain the power module, the point-to-point replacement is facilitated, and the maintainability of the whole machine is improved.

In some embodiments, as shown in fig. 13-14, the power device 100 may further include: a third condenser 190 and a fourth condenser 210.

The third condenser 190 and the fourth condenser 210 may be installed in the first bin 111, air inlets of the third condenser 190 and the fourth condenser 210 may be communicated with an air outlet of the evaporator 140, and liquid outlets of the third condenser 190 and the fourth condenser 210 may be communicated with a liquid inlet of the evaporator 140.

It should be noted that, when the power of the power device 100 is too high, that is, the heat dissipation requirement is high, it is obviously insufficient to only provide the first condenser 120 and the second condenser 130, and in order to ensure that the device can operate in a normal temperature range, the third condenser 190 and the fourth condenser 210 may be additionally provided to operate in cooperation with the first condenser 120 and the second condenser 130.

In practical implementation, when the IGBT module 240 works, the IGBT module 240 may release a large amount of heat, the low-temperature liquid refrigerant in the evaporator 140 may absorb the heat released by the IGBT module 240, and evaporate to become a high-temperature gaseous refrigerant after absorbing the heat, based on the thermosiphon principle, the high-temperature gaseous refrigerant may rise to the first condenser 120, the second condenser 130, the third condenser 190 and the fourth condenser 210, the first condenser 120, the second condenser 130, the third condenser 190 and the fourth condenser 210 may cool the high-temperature gaseous refrigerant by using the heat dissipation fins, the micro-channels and the external air, the high-temperature gaseous refrigerant may condense to a low-temperature liquid refrigerant after releasing the heat, and the low-temperature liquid refrigerant may fall back into the evaporator 140 by gravity, which is a complete heat dissipation cycle.

According to the power equipment 100 provided by the embodiment of the application, through the arrangement of the third condenser 190 and the fourth condenser 210, the heat dissipation requirement of a high-power device is met, the electric components in the power equipment 100 can all work and operate at a proper temperature, and the use width of the whole power equipment 100 is increased.

In some embodiments, as shown in fig. 13-14, the air inlet of the third condenser 190 may be in communication with the air inlet of the first condenser 120, and the air inlet of the fourth condenser 210 may be in communication with the air inlet of the second condenser 130.

It will be appreciated that the first condenser 120, the second condenser 130, the third condenser 190 and the fourth condenser 210 each have an independent air inlet and an independent air outlet, and if the first condenser 120, the second condenser 130, the third condenser 190 and the fourth condenser 210 are all independently communicated with the evaporator 140, the evaporator 140 needs to be respectively communicated with the air inlets of the first condenser 120, the second condenser 130, the third condenser 190 and the fourth condenser 210 through 4 air pipes 220, and the evaporator 140 needs to be respectively communicated with the liquid outlets of the first condenser 120, the second condenser 130, the third condenser 190 and the fourth condenser 210 through 4 liquid pipes 230, which not only results in excessive space occupation of pipeline redundancy, but also is extremely disadvantageous for cost control.

In this embodiment, as shown in fig. 13 to 14, the evaporator 140 may be connected to the first condenser 120 and the third condenser 190 through 1 air pipe 220 and 1 liquid pipe 230, the evaporator 140 may be connected to the second condenser 130 and the fourth condenser 210 through 1 air pipe 220 and 1 liquid pipe 230, after the low-temperature low-pressure liquid refrigerant absorbs heat and evaporates to become a high-temperature gaseous refrigerant, a part of the high-temperature gaseous refrigerant may rise to the first condenser 120 and the third condenser 190 through the same air pipe 220, another part of the high-temperature gaseous refrigerant may rise to the second condenser 130 and the fourth condenser 210 through the same air pipe 220, the high-temperature gaseous refrigerant is condensed into a low-temperature liquid refrigerant by heat release, and the low-temperature liquid refrigerant in the first condenser 120 and the third condenser 190 may fall back into the evaporator 140 through the same liquid pipe 230, and the low-temperature liquid refrigerant in the second condenser 130 and the fourth condenser 210 may fall back into the evaporator 140 through the same liquid pipe 230.

According to the power equipment 100 provided by the embodiment of the application, through the structural design that the first condenser 120 and the third condenser 190 are in and out of the same opening, and the second condenser 130 and the fourth condenser 210 are in and out of the same opening, the excessive occupation space caused by redundant pipelines is avoided, the pipe arrangement is convenient, the space occupation ratio of the whole machine is improved, and meanwhile, the material cost and the processing cost are reduced.

In some embodiments, as shown in fig. 13, the distance between the third condenser 190 and the first condenser 120 may be gradually increased or gradually decreased in a direction from the inlet to the outlet therebetween; the distance between the fourth condenser 210 and the second condenser 130 may be gradually increased or gradually decreased in a direction from the inlet to the outlet therebetween.

In this embodiment, as shown in fig. 13, the liquid outlet of the first condenser 120 may be close to the liquid outlet of the third condenser 190, the air inlet of the first condenser 120 may be distant from the air inlet of the third condenser 190, or the liquid outlet of the first condenser 120 may be distant from the liquid outlet of the third condenser 190, and the air inlet of the first condenser 120 may be close to the air inlet of the third condenser 190; the liquid outlet of the second condenser 130 may be close to the liquid outlet of the fourth condenser 210, the air inlet of the second condenser 130 may be far away from the air inlet of the fourth condenser 210, or the liquid outlet of the second condenser 130 may be far away from the liquid outlet of the fourth condenser 210, and the air inlet of the second condenser 130 may be close to the air inlet of the fourth condenser 210.

The third condenser 190 and the first condenser 120 are arranged in a V shape, the first condenser 120 and the second condenser 130 are also arranged in a V shape, the second condenser 130 and the fourth condenser 210 are also arranged in a V shape, the whole of the first condenser 120, the second condenser 130, the third condenser 190 and the fourth condenser 210 is arranged in an M shape, the surfaces of the first condenser 120, the second condenser 130, the third condenser 190 and the fourth condenser 210 can be radiating surfaces, a certain distance is reserved between adjacent radiating surfaces, the difference between the flow resistance of each radiating surface is small, and the flow is uniform.

The power equipment 100 that this application embodiment provided is M type setting through above-mentioned condenser, has effectively increased the heat transfer area of condenser, utilizes reasonable structural design to make flow resistance and flow more balanced, improves the utilization ratio of condenser greatly, reduces the design redundancy of condenser, has increased the use width of whole power equipment 100 simultaneously.

In some embodiments, as shown in fig. 14, the third condenser 190 and the first condenser 120 may be arranged in parallel, and the fourth condenser 210 and the second condenser 130 may be arranged in parallel.

In this embodiment, as shown in fig. 14, the third condenser 190 and the fourth condenser 210 are located outside the first condenser 120 and the second condenser 130, respectively, the first condenser 120, the second condenser 130, the third condenser 190 and the fourth condenser 210 are integrally provided in a double V-shape, the first condenser 120 and the third condenser 190 may be disposed directly opposite to each other or slightly staggered, the distance between the first condenser 120 and the third condenser 190 is small, the second condenser 130 and the fourth condenser 210 may be disposed directly opposite to each other or slightly staggered, and the distance between the second condenser 130 and the fourth condenser 210 is small.

The power equipment 100 provided by the embodiment of the application is arranged in a double-V shape through the above-mentioned condenser, and under the premise of guaranteeing the heat dissipation effect, the occupied space of the third condenser 190 and the fourth condenser 210 is maximally reduced, and the depth space of the cabinet body 110 is directly saved, so that the power density of the whole power equipment 100 is improved, and the miniaturization and the light-weight design of the power equipment 100 are realized.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

In the description of the present application, "a first feature", "a second feature" may include one or more of the features.

In the description of the present application, the meaning of "plurality" is two or more.

In the description of this application, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact by another feature therebetween.

In the description of this application, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A power device, comprising:

2. The power device of claim 1, further comprising:

and the fan is arranged at the air inlet.

3. The power device of claim 2, further comprising:

4. The power device of claim 2, further comprising:

the front cover plate is arranged between the fan and the cabinet body;

5. The power device of claim 1, further comprising:

the IGBT modules are attached to the surface of the evaporator;

the connecting row is arranged among the plurality of IGBT modules;

6. The power device of claim 5, further comprising:

7. The power device of claim 5, further comprising:

8. The power device of any of claims 1-7, further comprising:

9. The power plant of claim 8, wherein the air inlet of the third condenser is in communication with the air inlet of the first condenser and the air inlet of the fourth condenser is in communication with the air inlet of the second condenser.

10. The power plant of claim 8, wherein the distance between the third condenser and the first condenser increases or decreases gradually in a direction from the inlet to the outlet between the two; the distance between the fourth condenser and the second condenser is gradually increased or gradually decreased along the direction from the air inlet to the liquid outlet.

11. The power plant of claim 8, wherein the third condenser and the first condenser are arranged in parallel and the fourth condenser and the second condenser are arranged in parallel.