CN220476189U - Converter and electrical equipment - Google Patents

Abstract

The application discloses a converter and electrical equipment belongs to energy storage technical field. The converter comprises a shell, a first liquid cooling plate, a second liquid cooling plate and at least one electronic device: the two ends of the shell are opened; the first liquid cooling plate and the second liquid cooling plate are respectively covered on the two open ends, an accommodating cavity is formed among the first liquid cooling plate, the second liquid cooling plate and the shell, and the flow channel of the first liquid cooling plate and the flow channel of the second liquid cooling plate are connected in parallel; the electronic device is arranged in the accommodating cavity, and at least one electronic device is attached to at least one of the first liquid cooling plate and the second liquid cooling plate. Through open first liquid cooling board and the second liquid cooling board that sets up in casing both ends, and the runner parallel connection of runner and the second liquid cooling board of first liquid cooling board to realize radiating respectively to all electronic device in the converter, can also adapt to the overall arrangement mode of various electronic device, prolonged the operating life of whole converter.

Description

Converter and electrical equipment

Technical Field

The application belongs to the technical field of energy storage, and particularly relates to a converter and electrical equipment.

Background

At present, in the energy storage field, an energy storage converter is used as an indispensable structure, and whether the energy storage converter can normally operate for a long time influences the working efficiency of the whole energy storage system or not, so that the heat dissipation performance of the energy storage converter is higher and higher. At present, most of traditional heat dissipation modes adopt air cooling and liquid cooling.

The air duct is arranged on the surface of the energy storage converter to realize heat exchange between the shell and the outside air, and the air conditioner is arranged in the energy storage converter to cool, so that the protection level of the energy storage converter is difficult to ensure, and the space size and the energy consumption of the energy storage converter are increased; the latter is mainly in order to realize the heat exchange at the surface laminating liquid cooling board of the great electronic device of calorific capacity in the energy storage converter, because the electronic device in the energy storage converter is not only kind complicated and the size specification all is not necessarily the same, and each electronic device installs the position in the energy storage converter also different moreover, is difficult to guarantee the heat dissipation condition of all electronic devices in the whole energy storage converter, and then influences the holistic operating life of energy storage converter and whole energy storage system.

Disclosure of Invention

The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the application provides a converter and electrical equipment, through open first liquid cooling board and the second liquid cooling board of setting up in casing both ends, and the runner parallel connection of first liquid cooling board and the runner of second liquid cooling board to realize respectively the heat dissipation to all electronic components in the converter, the overall arrangement mode of adaptation various electronic components when having guaranteed to hold the difference in temperature in everywhere in chamber not big has prolonged the operation life of whole converter.

In a first aspect, the present application provides a current transformer, comprising:

a shell with two open ends;

the first liquid cooling plate and the second liquid cooling plate are respectively covered on the two openings, an accommodating cavity is formed among the first liquid cooling plate, the second liquid cooling plate and the shell, and the flow channel of the first liquid cooling plate is connected with the flow channel of the second liquid cooling plate in parallel;

at least one electronic device is arranged in the accommodating cavity, and at least one electronic device is attached to at least one of the first liquid cooling plate and the second liquid cooling plate.

According to the converter, through setting up first liquid cooling board and second liquid cooling board respectively in the opposite both sides that hold the chamber, not only can all play certain radiating effect to all electronic device in the converter, avoid holding the great condition of the both ends difference in temperature in chamber and take place, strengthened the radiating effect, can also adapt to the overall arrangement of various electronic device, prolonged the operating life of whole converter.

According to one embodiment of the present application, further comprising:

the liquid outlet end of the liquid inlet pipe is respectively communicated with the liquid inlet end of the flow channel of the first liquid cooling plate and the liquid inlet end of the flow channel of the second liquid cooling plate, and the liquid inlet end of the liquid inlet pipe is used for being communicated with the outside;

the liquid inlet end of the liquid outlet pipe is respectively communicated with the liquid outlet end of the flow channel of the first liquid cooling plate and the liquid outlet end of the flow channel of the second liquid cooling plate, and the liquid outlet end of the liquid outlet pipe is used for being communicated with the outside.

According to one embodiment of the application, the electronic device further comprises at least one partition plate arranged in the shell and used for dividing the accommodating cavity into at least two chambers which are not communicated with each other so as to accommodate the electronic devices in a classified mode.

According to one embodiment of the present application, a flow channel is disposed in the partition board, and the flow channel of the partition board is connected in series or in parallel with one of the flow channel of the first liquid cooling plate or the flow channel of the second liquid cooling plate.

According to an embodiment of the present application, the housing includes a plurality of end to end side plates that are connected in turn, at least one be provided with the runner in the side plate, just the runner of side plate with one of the runner of first liquid cooling board or the runner of second liquid cooling board is connected in series or in parallel.

According to an embodiment of the present application, the heat dissipation device further comprises a plurality of heat dissipation portions, wherein the plurality of heat dissipation portions are arranged on the bottom surface of one of the top portions of the accommodating cavity of the first liquid cooling plate and the second liquid cooling plate at intervals.

According to one embodiment of the present application, further comprising:

and the water receiving piece is arranged below one of the tops of the accommodating cavities in the first liquid cooling plate and the second liquid cooling plate and is used for collecting condensed water.

According to one embodiment of the application, a drain opening is provided on the housing, and the bottom surface of the water receiving member is inclined to enable the collected condensed water to flow to the drain opening.

In a second aspect, the present application provides an electrical device comprising:

the liquid storage tank is internally provided with cooling liquid;

the liquid inlet end of the radiator is communicated with the liquid outlet end of the liquid storage tank;

according to the converter, two ends of the flow channel of the converter are respectively communicated with the liquid outlet end of the radiator and the liquid inlet end of the liquid storage tank;

and the driving pump is used for driving the liquid cooling medium to circularly flow.

According to the electric equipment, the first liquid cooling plate and the second liquid cooling plate are arranged at the two ends of the shell of the converter in an open mode, and the flow channels of the first liquid cooling plate and the flow channels of the second liquid cooling plate are connected in parallel, so that all electronic devices in the converter are respectively cooled, the arrangement modes of accommodating various electronic devices are guaranteed while the temperature difference of each part of the cavity is not large, and the service life of the whole converter is guaranteed.

According to one embodiment of the application, the current transformer is provided with a plurality of current transformers, and the flow channels of a plurality of current transformers are connected in parallel or in series.

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 a schematic structural diagram of a current transformer according to an embodiment of the present application;

fig. 2 is an exploded view of a current transformer provided in an embodiment of the present application;

figure 3 is a cross-sectional view of a first current transformer provided in an embodiment of the present application;

fig. 4 is a cross-sectional view of a second current transformer provided in an embodiment of the present application;

fig. 5 is a structure in which a first liquid cooling plate and a side plate provided with a flow channel are integrally formed in an embodiment of the present application;

fig. 6 is a structure in which a first liquid cooling plate, a second liquid cooling plate, and a side plate provided with a flow channel are integrally formed in an embodiment of the present application;

fig. 7 is a schematic structural diagram of a connection between a first liquid cooling plate and a heat dissipation portion according to an embodiment of the present application;

FIG. 8 is a schematic diagram of a coolant fluid flowing in an electrical device provided by an embodiment of the present application;

fig. 9 is a schematic structural diagram of an electrical apparatus according to an embodiment of the present application;

fig. 10 is a schematic diagram of a second structure of the electrical device according to the embodiment of the present application.

Reference numerals:

100. a current transformer;

110. a housing; 120. a first liquid cooling plate; 130. a second liquid cooling plate;

141. an IGBT module; 142. an energy storage module;

150. a liquid inlet pipe; 151. a liquid inlet end of the liquid inlet pipe; 160. a liquid outlet pipe; 161. a liquid outlet end of the liquid outlet pipe; 170. a partition plate; 180. a heat dissipation part; 190. a water receiving member;

200. a liquid storage tank;

300. a heat sink;

400. driving a pump;

500. a pipeline structure;

600. a box body.

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.

A current transformer 100 provided in an embodiment of the present application is described below with reference to fig. 1 to 10, where the current transformer 100 includes a housing 110, a first liquid cooling plate 120, a second liquid cooling plate 130, and at least one electronic device.

The two ends of the housing 110 are provided with openings for conveniently placing electronic devices and playing roles in dust prevention, water prevention and collision prevention of the electronic devices, and the materials of the housing 110 include, but are not limited to, stainless steel, aluminum alloy or titanium alloy. It should be noted that, the size and shape of the housing 110 may be designed according to practical requirements, which is not particularly limited in this embodiment.

The first liquid cooling plate 120 and the second liquid cooling plate 130 are respectively covered on the two open ends, and a containing cavity is formed among the first liquid cooling plate 120, the second liquid cooling plate 130 and the shell 110, and the runner of the first liquid cooling plate 120 and the runner of the second liquid cooling plate 130 are connected in parallel.

It should be noted that, on the one hand, through the first liquid cooling plate 120 and the second liquid cooling plate 130 respectively covering the two ends of the housing 110 and opening, not only can a closed accommodating cavity be formed with the housing 110 to satisfy the protection level of the whole converter 100, but also the contact area of heat exchange of the converter 100 can be increased as much as possible by using the first liquid cooling plate 120 and the second liquid cooling plate 130 disposed on two opposite sides of the accommodating cavity, and the heat dissipation effect is improved. In this embodiment, considering the conventional placement manner of the electronic devices, the first liquid cooling plate 120 covers the upper end opening of the housing 110, and the second liquid cooling plate 130 covers the lower end opening of the housing 110.

It is understood that the connection manner of the first liquid cooling plate 120 and the second liquid cooling plate 130 to the housing 110 includes, but is not limited to, a screw, a buckle, or a pin.

In addition, because the flow channels of the first liquid cooling plate 120 and the flow channels of the second liquid cooling plate 130 are connected in parallel, the flow channels are connected in parallel to ensure that the opposite sides of the accommodating cavity exchange heat independently, so that heat dissipation is more uniform and sufficient, the air temperature inside the converter 100 is greatly reduced, the heat dissipation effect is enhanced, and the service life and reliability of the converter 100 are further improved. In this embodiment, the types of the first liquid cooling plate 120 and the second liquid cooling plate 130 include, but are not limited to, a cavity type liquid cooling plate, a pressure tube type liquid cooling plate, a friction welding type liquid cooling plate, or a vacuum brazing type liquid cooling plate. It should be noted that the shape of the flow channel includes, but is not limited to, serpentine, circular and linear, which is not particularly limited in this embodiment.

In this embodiment, in order to achieve parallel connection between the flow of the first liquid cooling plate 120 and the flow channel of the second liquid cooling plate 130, the liquid inlet end of the flow channel of the first liquid cooling plate 120 is communicated with the liquid inlet end of the flow channel of the second liquid cooling plate 130, and the liquid outlet end of the flow channel of the first liquid cooling plate 120 is communicated with the liquid outlet end of the flow channel of the second liquid cooling plate 130, that is, the cooling liquid achieving heat exchange flows into the corresponding flow channel of the first liquid cooling plate 120 and the corresponding flow channel of the second liquid cooling plate 130 from the liquid inlet end of the flow channel of the first liquid cooling plate 120 and the liquid outlet end of the flow channel of the second liquid cooling plate 130, respectively, and then flows out to the outside.

The cooling liquid includes, but is not limited to, liquid fluorinated liquid, deionized water, and nonflammable oils. Wherein the fluorinated liquid may include, but is not limited to, hydrochlorofluorocarbons, hydrofluorocarbons, perfluorocarbons, or hydrofluoroethers.

The electronic device is mounted in the accommodating cavity, and at least one electronic device is attached to at least one of the first liquid cooling plate 120 and the second liquid cooling plate 130.

It should be noted that, the electronic devices include, but are not limited to, an IGBT module 141 and an energy storage module 142, where the IGBT module 141 is a power module formed by Insulated Gate Bipolar Transistors (IGBTs), and has advantages of high input impedance and low conduction voltage drop; the energy storage module 142 includes, but is not limited to, capacitors, inductors, copper bars, contactors, and circuit breakers.

Based on specifications and arrangement requirements of the IGBT module 141 and the energy storage module 142, the IGBT module 141 is attached to one of the first liquid cooling plate 120 and the second liquid cooling plate 130, and the energy storage module 142 is selectively attached to the other of the first liquid cooling plate 120 and the second liquid cooling plate 130.

In the case that the first liquid cooling plate 120 is covered on the upper end of the housing 110 and the second liquid cooling plate 130 is covered on the lower end of the housing 110, the arrangement modes of the electronic devices are two:

as shown in fig. 3, the IGBT module 141 is disposed on the second liquid cooling plate 130, that is, is attached to the upper surface of the second liquid cooling plate 130, and performs heat dissipation on the IGBT module 141 through single-sided attachment, where the energy storage module 142 is located between the first liquid cooling plate 120 and the second liquid cooling plate 130, and the heat generated by the energy storage module 142 moves upward to the first liquid cooling plate 120 to complete heat dissipation on the energy storage module 142;

second, as shown in fig. 4, the IGBT module 141 is disposed on the first liquid cooling plate 120, that is, is attached to the lower surface of the first liquid cooling plate 120, and heat dissipation to the IGBT module 141 is achieved through single-sided attachment, and the energy storage module 142 is disposed on the second liquid cooling plate 130, that is, attached to the upper surface of the second liquid cooling plate 130, and heat dissipation to the energy storage module 142 is achieved through single-sided attachment. When the IGBT module 141 and the energy storage module 142 are respectively attached to the corresponding first liquid cooling plate 120 and the second liquid cooling plate 130, at least one of the IGBT module 141 and the energy storage module 142 may be mounted in the accommodating cavity by a potting process.

It can be appreciated that, by arranging the first liquid cooling plate 120 and the second liquid cooling plate 130 on two opposite sides of the accommodating cavity, not only a certain heat dissipation effect can be achieved on all electronic devices in the converter 100, but also the heat dissipation effect is enhanced, the layout of various electronic devices can be adapted, and the operation life of the whole converter 100 is prolonged.

According to the converter 100 provided by the embodiment of the application, the first liquid cooling plate 120 and the second liquid cooling plate 130 are arranged at the two ends of the shell 110 in an open manner, and the flow channels of the first liquid cooling plate 120 and the flow channels of the second liquid cooling plate 130 are connected in parallel, so that all electronic devices in the converter 100 are respectively cooled, the arrangement mode of accommodating various electronic devices while ensuring that the temperature difference of each position of the accommodating cavity is not large is ensured, and the operation life of the whole converter 100 is prolonged.

In some embodiments, as shown in fig. 1, 2 and 10, the converter 100 further includes a liquid inlet pipe 150 and a liquid outlet pipe 160 disposed outside the housing 110, wherein a liquid outlet end of the liquid inlet pipe 150 is respectively communicated with a liquid inlet end of the flow channel of the first liquid cooling plate 120 and a liquid inlet end of the flow channel of the second liquid cooling plate 130, and a liquid inlet end 151 of the liquid inlet pipe is used for communication with the outside; the liquid inlet end of the liquid outlet pipe 160 is respectively communicated with the liquid outlet end of the runner of the first liquid cooling plate 120 and the liquid outlet end of the runner of the second liquid cooling plate 130, and the liquid outlet end 161 of the liquid outlet pipe is used for being communicated with the outside.

It will be appreciated that by providing the liquid inlet pipe 150 and the liquid outlet pipe 160, not only the parallel connection of the flow passage of the first liquid cooling plate 120 and the flow passage of the second liquid cooling plate 130, but also the inflow and outflow of the cooling liquid from the outside are realized.

It should be noted that, the liquid inlet pipe 150 and the liquid outlet pipe 160 are respectively communicated with the liquid inlet end and the liquid outlet end of the flow channels of the corresponding first liquid cooling plate 120 and the second liquid cooling plate 130 through connectors, and the connectors include, but are not limited to, a pagoda head, a threaded connector and a self-sealing connector.

In some embodiments, the liquid inlet pipe 150 and the water outlet pipe are disposed outside the same side of the housing 110, so as to facilitate the arrangement of the pipeline structure 500 for communication between the converter 100 and the outside, reduce the difficulty and labor cost of installing the pipeline structure 500, and improve the disassembly and assembly efficiency and the maintenance convenience.

In some embodiments, as shown in connection with fig. 3 and 4, the converter 100 further includes at least one partition 170 mounted in the housing 110 for dividing the accommodating cavity into at least two chambers not communicating with each other for accommodating the electronic devices in a classified manner.

It can be appreciated that by providing the partition 170 to improve the space utilization of the whole accommodating cavity, the occupied space of the converter 100 is reduced, the heat dissipation conditions of different cavities can be conveniently controlled, and the heat dissipation effect of a single electronic device is improved. It should be noted that the material of the diaphragm 170 includes, but is not limited to, stainless steel, aluminum alloy, or titanium alloy. The diaphragm 170 is coupled to the inner wall of the housing 110 by, but not limited to, a threaded, snap-fit, or pin-fixed connection. The number and arrangement of the partition plates 170 may be limited according to practical situations, and the present embodiment is not particularly limited.

In this embodiment, the accommodating chamber is divided into two chambers which are not communicated with each other by providing a partition 170 for accommodating the IGBT module 141 and the energy storage module 142, respectively.

In some embodiments, a flow channel is disposed within the diaphragm 170, the flow channel of the diaphragm 170 being connected in series or parallel with one of the flow channel of the first liquid cooling plate 120 or the flow channel of the second liquid cooling plate 130.

It can be appreciated that the flow channels are arranged in the partition plate 170, so that the partition plate 170 further has the effect of a liquid cooling plate, and the heat dissipation effect of each chamber is further improved. The flow channels of the separator 170 may be connected in series with the flow channels of the first liquid cooling plate 120 and simultaneously connected in parallel with the flow channels of the second liquid cooling plate 130, may be connected in series with the flow channels of the second liquid cooling plate 130 and simultaneously connected in parallel with the flow channels of the first liquid cooling plate 120, and may be connected in parallel with the flow channels of the first liquid cooling plate 120 and the flow channels of the second liquid cooling plate 130, respectively.

In some embodiments, it is contemplated that the energy storage module 142 further includes a circuit board, and other energy storage modules 142 such as capacitors, inductors, etc. may be disposed on and electrically connected to the circuit board, so that the overall structure of the current transformer 100 can be made more compact by replacing the separator 170 with the circuit board. It will be appreciated that in the case where the separator 170 is a circuit board, the separator 170 is provided without a flow path in consideration of the function and the specification of the circuit board.

In some embodiments, as shown in fig. 2, 6 and 7, the housing 110 includes a plurality of side plates connected end to end, at least one side plate has a flow channel disposed therein, and the flow channel of the side plate is connected in series or parallel with one of the flow channel of the first liquid cooling plate 120 or the flow channel of the second liquid cooling plate 130.

It is understood that the diaphragm 170 may be coupled to the inner wall of the housing 110 by, but not limited to, a threaded, snap-fit, or pin-fixed connection. The number and placement of the partition plates 170 may be limited according to practical situations, and the present embodiment is not limited thereto.

It should be noted that, through setting up the runner in at least one curb plate, make corresponding runner still possess the efficiency of liquid cooling board, further improved the radiating effect of whole holding chamber. It can be understood that the flow channels of the side plates may be connected in series with the flow channels of the first liquid cooling plate 120 and connected in parallel with the flow channels of the second liquid cooling plate 130, or may be connected in series with the flow channels of the second liquid cooling plate 130 and connected in parallel with the flow channels of the first liquid cooling plate 120, or may be connected in parallel with the flow channels of the first liquid cooling plate 120 and the flow channels of the second liquid cooling plate 130, respectively, which is not particularly limited in this embodiment.

In this embodiment, in order to enhance the heat dissipation effect as much as possible, the side plates are provided with four sides so that the housing 110 has a rectangular structure, and the other side plates of the four side plates except the side plates near the side of the liquid inlet pipe 150 and the liquid outlet pipe 160 are all provided with flow channels.

In order to facilitate reducing the disassembly and assembly steps of the converter 100, as shown in fig. 5, in some embodiments, the side plate provided with the flow channel and one of the first liquid cooling plate 120 and the second liquid cooling plate 130 are integrally formed; as shown in fig. 6, the side plate provided with the flow channel, the first liquid cooling plate 120, and the second liquid cooling plate 130 may be integrally formed.

In some embodiments, as shown in connection with fig. 7, when the IGBT module 141 is disposed at the bottom of the accommodating chamber, the converter 100 further includes a plurality of heat dissipating parts 180, and the plurality of heat dissipating parts 180 are disposed at intervals at the bottom surface of one of the first and second liquid cooling plates 120 and 130 located at the top of the accommodating chamber.

It can be appreciated that when the IGBT module 141 is disposed at the bottom of the accommodating portion, the energy storage module 142 is located between the first liquid cooling plate 120 and the second liquid cooling plate 130, that is, a certain gap exists between the energy storage module 142 and the bottom surface of one of the first liquid cooling plate 120 and the second liquid cooling plate 130 located at the top, and the heat dissipation area is further increased by adding the plurality of heat dissipation portions 180 disposed at intervals in the gap, so that the heat transfer efficiency is improved, and the heat dissipation effect on the energy storage module 142 is improved. In this embodiment, the plurality of heat dissipation portions 180 are disposed on the bottom surface of the first liquid cooling plate 120 at intervals along the width direction of the first liquid cooling plate 120, and the heat dissipation portions 180 are straight plates. Of course, in other embodiments, the heat dissipating portions 180 may have a sloping plate, V-shaped or corrugated structure, and the number, distribution and structure of the heat dissipating portions 180 are not particularly limited in this embodiment.

In some embodiments, as shown in connection with fig. 2, the converter 100 further includes a water receiving member 190, the water receiving member 190 being installed below one of the first and second liquid cooling plates 120 and 130 at the top of the receiving chamber for collecting condensed water.

It will be appreciated that, considering that the first liquid cooling plate 120 and the second liquid cooling plate 130 dissipate heat of the electronic device in operation, the temperature in the accommodating cavity is still far higher than the temperature outside the converter 100, so that condensed water is generated on the surfaces of the first liquid cooling plate 120 and the second liquid cooling plate 130, and although the operating temperature of the electronic device in normal operation can quickly evaporate the condensed water falling on the electronic device, the condensed water falling on the electronic device in not operation can affect the operation thereof, thereby reducing the service life of the whole converter 100.

In order to solve the above problems, the water receiving member 190 is installed under one of the first and second liquid cooling plates 120 and 130 at the top, thereby collecting condensed water generated during heat exchange thereof, and preventing the condensed water from falling down to various places of the receiving chamber under the effect of gravity. In this embodiment, since the first liquid cooling plate 120 is located at the top of the accommodating chamber, the water receiving member 190 is disposed below the first liquid cooling plate 120. It should be noted that the connection manner between the water receiving member 190 and the first liquid cooling plate 120 includes, but is not limited to, a fixed connection by threads, a buckle, or a pin.

In this embodiment, the water receiving member 190 includes a horizontal plate and two vertical plates respectively disposed at both ends of the horizontal plate, that is, the water receiving member 190 is -shaped, so that a part of condensed water directly drops on the horizontal plate, and another part of condensed water flows onto the horizontal plate after being guided by the vertical plates, that is, the condensed water is collected on the horizontal plate.

In this embodiment, considering that the amount of the condensed water that can be collected by the water receiving member 190 is limited, the case 110 is provided with a drain port, and the bottom surface (i.e., horizontal plate) of the water receiving member 190 is inclined to allow the collected condensed water to flow toward the drain port. Even if the condensed water collected in the water receiving member 190 is automatically gathered at the inner wall of the shell 110 provided with the water draining port under the action of gravity, the condensed water can automatically flow out from the water draining port when reaching a certain height, so that the use safety of the current transformer 100 can be further improved, the service life of the current transformer 100 can be prolonged, and the operation of periodically taking out the water receiving member 190 from the current transformer 100 to clean the condensed water can be avoided, so that the current transformer 100 can be maintained.

When the IGBT module 141 is attached to the first liquid cooling plate 120 or the second liquid cooling plate 130 located at the top, the upper surface of the horizontal plate is located below the IGBT module 141.

In some embodiments, the water receiving member 190 may also be directly attached to the bottom surface of the first liquid cooling plate 120, and the water receiving member 190 is made of a water absorbing material, and the condensed water is collected by directly absorbing the condensed water, so as to avoid dropping of the condensed water. The water absorbing material includes, but is not limited to, foam, sponge, or silica gel.

As shown in fig. 8 to 10, the embodiment of the present application also provides an electrical apparatus including the tank 200, the radiator 300, the driving pump 400, and the inverter 100 described above.

The liquid storage tank 200 is provided with a cooling liquid, and a liquid inlet end of the liquid storage tank 200 is communicated with one end of a flow channel of the converter 100 (namely, a liquid inlet end 151 of a liquid inlet pipe), and the liquid storage tank 200 is used for providing the cooling liquid required for cooling the converter 100.

The liquid inlet end of the radiator 300 is communicated with the liquid outlet end of the liquid storage tank 200, and the liquid outlet end of the radiator 300 is communicated with the other end of the flow channel of the converter 100 (namely, the liquid outlet end 161 of the liquid outlet pipe). It will be appreciated that the heat sink 300 is used to reduce the temperature of the coolant, thereby ensuring that the temperature of the coolant flowing into the flow channels of the current transformer 100 can be exchanged with the electronic device, and ensuring the heat dissipation effect. It should be noted that the type of the radiator 300 includes, but is not limited to, an air-cooled radiator 300, a heat pipe radiator 300, or a liquid-cooled radiator 300. In this embodiment, the radiator 300 includes a fan and a condenser connected to each other, that is, the condenser cools down the flowing coolant, and releases the heat generated in the process to the air through the fan.

It will be appreciated that the cooling liquid flowing out of the flow channel of the converter 100 flows back into the liquid storage tank 200, and at this time, the cooling liquid just exchanges heat with the electronic device to cause a higher temperature, so that the cooling liquid flows out of the liquid storage tank 200 and enters the radiator 300 through the inlet end of the radiator 300, the temperature of the cooling liquid is reduced by utilizing the heat exchange with the radiator 300, and the cooled cooling liquid is ensured to leave the radiator 300 through the liquid outlet end of the radiator 300 and flow into the flow channel of the converter 100 (i.e. at least the flow channel including the first liquid cooling plate 120 and the flow channel including the second liquid cooling plate 130) through the liquid inlet end 151 of the liquid inlet pipe, so as to correspondingly absorb the heat generated during the operation of the IGBT module 141 and the energy storage module 142.

The driving pump 400 is used to drive the liquid cooling medium to circulate.

It will be appreciated that the radiator 300, the flow path of the converter 100, the tank 200 and the drive pump 400 may be connected end to form a closed loop through which a cooling fluid may flow to meet the heat dissipation requirements of the electronics within the converter 100.

In actual implementation, as shown in fig. 8, the cyclic heat dissipation process of the electrical device may be implemented as follows: the driving pump 400 can drive the cooling liquid to circulate, the cooling liquid firstly passes through the flow channel of the converter 100 to absorb heat generated during the operation of the electronic device, then sequentially passes through the liquid storage tank 200 and the radiator 300, and the radiator 300 cools the cooling liquid and then returns to the flow channel of the converter 100 again, so that the next heat dissipation cycle is entered.

According to the electrical equipment provided by the embodiment of the application, the first liquid cooling plate 120 and the second liquid cooling plate 130 are arranged at the two ends of the shell 110 of the converter 100 in an open mode, and the flow channels of the first liquid cooling plate 120 and the flow channels of the second liquid cooling plate 130 are connected in parallel, so that all electronic devices in the converter 100 are respectively cooled, the arrangement mode of adapting to various electronic devices while the temperature difference of each position of the accommodating cavity is not large is ensured, and the operation life of the whole converter 100 is prolonged.

In some embodiments, the current transformer 100 is provided in plurality, and the flow channels of the current transformers 100 are connected in parallel or in series to improve the operation performance of the whole electrical apparatus.

It can be understood that, as shown in fig. 10, the flow channels of the plurality of current transformers 100 are connected in parallel, that is, the liquid inlet ends 151 of the liquid inlet pipes of the plurality of current transformers 100 are connected through the pipeline structure 500, and the liquid outlet ends 161 of the liquid outlet pipes of the plurality of current transformers 100 are connected through the pipeline structure 500, so that the cooling liquid flowing out from the liquid outlet ends of the heat sinks 300 is uniformly distributed into the flow channels corresponding to the plurality of current transformers 100 through the liquid inlet ends 151 of the plurality of liquid inlet pipes, and heat dissipation can be performed on the electronic devices of the plurality of current transformers 100 at the same time. The number of the converters 100 is not particularly limited, and is 2 or more.

The flow channels of the plurality of current transformers 100 are connected in series, that is, the liquid inlet end 151 of the liquid inlet pipe of the current transformer 100 at the head end is communicated with the liquid outlet end of the radiator 300 through the pipeline structure 500, the liquid outlet end 161 of the liquid outlet pipe of the current transformer 100 at the head end is communicated with the liquid inlet end 151 of the liquid inlet pipe of the next current transformer 100, the liquid outlet end 161 of the liquid outlet pipe of the next current transformer 100 is communicated with the liquid inlet end 151 of the liquid inlet pipe of the next current transformer 100, and so on, and the liquid outlet end 161 of the liquid outlet pipe of the current transformer 100 at the tail end is communicated with the liquid inlet end of the liquid storage tank 200 through the pipeline structure 500.

In some embodiments, to further improve the integration and protection level of the electrical device, as shown in fig. 9, the electrical device further includes a box 600 for installing the current transformer 100 and the pipeline structure 500 for the current transformer 100 to communicate with the outside. It is understood that the material of the case 600 includes, but is not limited to, stainless steel, aluminum alloy, or titanium alloy, and the case 600 includes, but is not limited to, a closed structure, a semi-closed structure, and an open structure. The connection between the current transformer 100 and the case 600 and the connection between the piping structure 500 and the case 600 include, but are not limited to, a screw connection, a snap connection, or a pin connection. It should be noted that, the size and the material of the case 600 may be designed according to the number and the size of the current transformer 100 and the size of the pipeline structure 500, which is not particularly limited in this embodiment.

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 (10)

1. A current transformer, comprising:

a shell with two open ends;

the first liquid cooling plate and the second liquid cooling plate are respectively covered on the two openings, an accommodating cavity is formed among the first liquid cooling plate, the second liquid cooling plate and the shell, and the flow channel of the first liquid cooling plate is connected with the flow channel of the second liquid cooling plate in parallel;

at least one electronic device is arranged in the accommodating cavity, and at least one electronic device is attached to at least one of the first liquid cooling plate and the second liquid cooling plate.

2. The current transformer of claim 1, further comprising:

the liquid outlet end of the liquid inlet pipe is respectively communicated with the liquid inlet end of the flow channel of the first liquid cooling plate and the liquid inlet end of the flow channel of the second liquid cooling plate, and the liquid inlet end of the liquid inlet pipe is used for being communicated with the outside;

the liquid inlet end of the liquid outlet pipe is respectively communicated with the liquid outlet end of the flow channel of the first liquid cooling plate and the liquid outlet end of the flow channel of the second liquid cooling plate, and the liquid outlet end of the liquid outlet pipe is used for being communicated with the outside.

3. The current transformer of claim 1, further comprising at least one partition mounted within the housing for dividing the receiving cavity into at least two chambers that are not in communication with each other for the categorized receiving of the electronic devices.

4. A converter according to claim 3, wherein a flow passage is provided in the partition plate, and the flow passage of the partition plate is connected in series or in parallel with one of the flow passage of the first liquid cooling plate or the flow passage of the second liquid cooling plate.

5. The converter of claim 1, wherein the housing comprises a plurality of side plates connected end to end, at least one of the side plates having a flow passage disposed therein, and the flow passage of the side plate is connected in series or parallel with one of the flow passage of the first liquid cooling plate or the flow passage of the second liquid cooling plate.

6. The converter of claim 1, further comprising a plurality of heat sinks disposed at spaced intervals on a bottom surface of one of the first and second liquid cooling plates at a top of the receiving cavity.

7. The current transformer according to any one of claims 1 to 6, further comprising:

and the water receiving piece is arranged below one of the tops of the accommodating cavities in the first liquid cooling plate and the second liquid cooling plate and is used for collecting condensed water.

8. The current transformer of claim 7 wherein the housing is provided with a drain opening and the bottom surface of the water receiving member is inclined to allow the collected condensate to flow toward the drain opening.

9. An electrical device, comprising:

the liquid storage tank is internally provided with cooling liquid;

the liquid inlet end of the radiator is communicated with the liquid outlet end of the liquid storage tank;

the converter according to any one of claims 1 to 8, wherein two ends of a runner of the converter are respectively communicated with a liquid outlet end of the radiator and a liquid inlet end of the liquid storage tank;

and the driving pump is used for driving the liquid cooling medium to circularly flow.

10. An electrical device according to claim 9, characterized in that the current transformer is provided with a plurality of current transformers, the flow channels of which are connected in parallel or in series.