WO2023216279A1

WO2023216279A1 - Phase-change cooling energy storage converter

Info

Publication number: WO2023216279A1
Application number: PCT/CN2022/092950
Authority: WO
Inventors: 官二勇
Original assignee: 京清数电(北京)技术有限公司
Priority date: 2022-05-10
Filing date: 2022-05-16
Publication date: 2023-11-16
Also published as: CN114599216A; CN218679737U

Abstract

Provided in the present application is a phase-change cooling energy storage converter, comprising a cabinet, a device, a condenser, an evaporator assembly, and a phase-change working medium. The device is arranged in the cabinet, the condenser is arranged outside the cabinet, the evaporator assembly is arranged in the cabinet; and an evaporator is in communication with the condenser. The phase-change working medium can flow between the condenser and the evaporator assembly. There is a height difference between the evaporator assembly and the condenser, so that the phase-change working medium in the condenser can flow to the evaporator assembly under the action of gravity, and the phase-change working medium in the evaporator assembly can flow to the condenser. The phase-change working medium in the evaporator assembly can evaporate and absorb heat in the cabinet, and the gaseous phase-change working medium can flow to the condenser and is condensed into a liquid in the condenser. The phase-change working medium can circulate between the evaporator assembly and the condenser assembly to take away the heat emitted by the device in the cabinet during operation, thereby improving the heat dissipation efficiency of the phase-change cooling energy storage converter.

Description

Phase change cooling energy storage converter

This application claims priority to the Chinese patent application filed with the China Patent Office on May 10, 2022, with the application number "202210503254.X" and the invention name "Phase Change Cooling Energy Storage Converter", the entire content of which is incorporated by reference. incorporated in this application.

Technical field

This application relates to the technical field of energy storage converters, and specifically to a phase change cooling energy storage converter.

Background technique

Currently, in related technologies, energy storage converters in the prior art are water-cooled or air-cooled to dissipate heat from the energy storage converter. However, the use of water-cooling makes the water circuit structure complex, and the air-cooling method requires setting Pipes, etc., using this method to dissipate heat from the energy storage converter results in low heat dissipation efficiency.

Application content

This application aims to solve at least one of the technical problems existing in the prior art or related technologies.

To this end, a first aspect of the present application proposes a phase change cooling energy storage converter.

In view of this, the first aspect of this application provides a phase change cooling energy storage converter, including a cabinet, a device, a condenser, an evaporator assembly and a phase change working medium. The device is arranged inside the cabinet; the condenser is arranged outside the cabinet; the evaporator assembly is arranged inside the cabinet, and the evaporator assembly is connected with the condenser; the phase change working medium can flow between the condenser and the evaporator assembly; wherein, the evaporator There is a height difference between the component and the condenser. The phase change working fluid in the condenser can flow to the evaporator component under the action of gravity, and the phase change working fluid in the evaporator component can flow to the condenser.

In this technical solution, the phase change cooling energy storage converter includes a cabinet, devices, condenser, evaporator components and phase change working fluid. The device is installed in the cabinet to realize the installation and fixation of the device. The condenser is arranged outside the cabinet to realize the installation of the condenser. The evaporator component is installed in the cabinet to realize the installation and fixation of the evaporator component. The evaporator component is connected with the condenser, and the phase change working fluid can flow between the condenser and the evaporator component, thereby facilitating the phase change working fluid to flow. Circulate flow between the condenser and evaporator components. The evaporator assembly has a height difference with the condenser, that is, the condenser is located above the evaporator assembly, so that the height of the condenser is higher than the height of the evaporator assembly. When there is a height difference between the evaporator assembly and the condenser, the phase change working fluid in the condenser can flow to the evaporator assembly under the action of gravity. When the device dissipates heat, the phase change working fluid in the evaporator component can evaporate and absorb heat, causing the phase change working fluid to change from a liquid state to a gaseous state, absorbing heat in the cabinet, and the phase change working fluid after changing to a gaseous state can flow to the condenser. The phase change working fluid after being in gaseous state in the condenser will condense into a liquid state, thereby discharging heat to the outside world, and flowing to the evaporator component under the action of gravity, so that the phase change working fluid can pass between the evaporator component and the condenser component. Circular flow can take away the heat emitted by the devices in the cabinet during operation, thereby reducing the temperature in the cabinet and ensuring the stability of the devices during operation, thereby improving the heat dissipation efficiency of the phase change cooling energy storage converter.

Specifically, when the temperature inside the cabinet is higher than a predetermined value, that is, when the temperature inside the cabinet is higher than the boiling point of the phase change working fluid in the evaporator assembly, the liquid phase change working fluid will boil and evaporate into a gaseous phase change working fluid. During this process, the phase change working fluid will absorb the heat in the cabinet. The high-temperature gaseous phase change working fluid will flow toward the condenser under the action of capillary force, which can bring the heat in the cabinet into the condenser.

Specifically, the boiling point of the phase change working fluid can be adjusted according to needs, thereby controlling the temperature of the phase change cooling energy storage converter.

Specifically, the phase change working fluid is FC-72 fluorinated liquid.

Specifically, the phase change working fluid is liquid fluorinated refrigerant, such as HFE7000 (fluorinated ether).

Specifically, the phase change working fluid is R134a (tetrafluoroethane).

In addition, the phase change cooling energy storage converter in the above technical solution provided by this application can also have the following additional technical features:

In a technical solution of the present application, the cabinet has a first installation cavity and a second installation cavity; the device includes a power module and a filter; the power module is arranged in the first installation cavity; and the filter is located in the second installation cavity. , the first end of the filter is connected to the first end of the power module.

In this technical solution, the cabinet has a first installation cavity and a second installation cavity, so that the first installation cavity and the second installation cavity can provide installation space for the device. The power module is disposed in the first installation cavity, which can provide installation space for the power component, thereby realizing the installation of the power module. The filter is arranged in the second installation cavity, which can provide an installation space for the filter, thereby realizing the installation of the filter. The first end of the filter is connected to the first end of the power module, so that the filter can effectively suppress the harmonics generated by the power component during operation to ensure the normal operation of the phase change cooling energy storage converter.

In a technical solution of the present application, the condenser includes an air inlet, a liquid discharge port, an air inlet pipe and a liquid discharge pipe. The first end of the air inlet pipe is connected to the air inlet, and the first end of the liquid discharge pipe is connected to the drain pipe. The pipes are connected; the evaporator assembly includes a first evaporator and a second evaporator; the first evaporator has a first exhaust port and a first liquid inlet, the first evaporator is located in the first installation cavity, and the first exhaust port The port is connected to the second end of the air inlet pipe, and the first liquid inlet is connected to the second end of the drain pipe; the second evaporator has a second exhaust port and a second liquid inlet, and the second evaporator is located at the In the second installation cavity, the second exhaust port is connected to the second end of the air inlet pipe, and the second liquid inlet is connected to the second end of the liquid discharge pipe.

In this technical solution, the condenser includes an air inlet, a liquid drain, an air inlet pipe, and a liquid drain pipe. The first end of the air inlet pipe is connected to the air inlet, and the first end of the liquid drain pipe is connected to the liquid drain pipe. ; The evaporator assembly includes a first evaporator and a second evaporator, so that the first evaporator and the second evaporator can evaporate and absorb heat in the first installation cavity and the second installation cavity, thereby reducing the first installation cavity and The temperature in the second installation cavity. The first evaporator has a first exhaust port and a first liquid inlet. The first evaporator is located in the first installation cavity. The first exhaust port is connected to the second end of the air inlet pipe. The first liquid inlet is connected to the exhaust port. The second end of the liquid pipe is connected so that the phase change working fluid in the first evaporator can flow into the air inlet pipe through the first exhaust port after evaporating into gas, and then enter the condenser under the action of capillary force. Condensation occurs. After condensation, the phase change working fluid in the condenser can enter the evaporator through the drain pipe under the action of gravity and evaporate and absorb heat again, thereby realizing the phase change working fluid circulating in the first evaporator and condenser. Then, the first installation cavity is continuously cooled. The second evaporator has a second exhaust port and a second liquid inlet. The second evaporator is located in the second installation cavity. The second exhaust port is connected to the second end of the air inlet pipe. The second liquid inlet is connected to the exhaust port. Connect the second end of the liquid tube. This allows the phase change working fluid in the second evaporator to flow into the air inlet pipe through the second exhaust port after evaporating into gas, and then enter the condenser for condensation under the action of capillary force. After condensation, the phase change working fluid in the condenser can enter the evaporator through the drain pipe under the action of gravity and evaporate and absorb heat again, thereby realizing the phase change working fluid circulating in the second evaporator and condenser. Then, the temperature of the second installation cavity is continuously cooled, thereby realizing heat dissipation of the second installation cavity.

In a technical solution of this application, the device also includes a DC switch and an AC switch; the DC switch is located in the first installation cavity, and the first end of the DC switch is connected to the second end of the power module; the AC switch is located in the second installation cavity. In the cavity, the first end of the AC switch is connected to the second end of the filter.

In this technical solution, the DC switch is located in the first installation cavity, so that the first installation cavity provides a certain space for the installation of the DC switch. The first end of the DC switch is connected to the second end of the power module, so that when the power module converts alternating current into direct current, the DC switch can protect the circuit to avoid damage to the battery caused by excessive current. The AC switch is located in the second installation cavity, and the first end of the AC switch is connected to the second end of the filter, thereby realizing the installation of the AC switch. The first end of the AC switch is connected to the second end of the filter, so that when the phase change cooling energy storage converter converts DC power into AC power, the AC switch can protect the circuit to avoid damage to the external power grid caused by excessive current. .

In a technical solution of the present application, the first evaporator is connected to the power module; the second evaporator is connected to the filter; the evaporator assembly also includes a third evaporator and a fourth evaporator; the third evaporator The device has a third exhaust port and a third liquid inlet. The third evaporator is located in the first installation cavity and fits the DC switch. The third exhaust port is connected to the second end of the air inlet pipe. The third liquid inlet is The fourth evaporator has a fourth exhaust port and a fourth liquid inlet. The fourth evaporator is located in the second installation cavity and fits the AC switch. The fourth exhaust port is connected to the second end of the drain pipe. The fourth liquid inlet is connected with the second end of the air inlet pipe, and the fourth liquid inlet is connected with the second end of the liquid discharge pipe.

In this technical solution, the first evaporator is coupled to the power module, so that during the evaporation and heat absorption process, the first evaporator can directly absorb the heat generated by the power module during operation. Since the power module The module is the main component that generates heat, so the power module can be cooled down accurately, which can further improve the heat dissipation efficiency of the power module. The evaporator assembly also includes a third evaporator and a fourth evaporator; the third evaporator has a third exhaust port and a third liquid inlet, and the third evaporator is located in the first installation cavity and fitted with the DC switch to The third exhaust port of the third evaporator is connected to the second end of the air inlet pipe, and the third liquid inlet is connected to the second end of the drain pipe; the third evaporator can directly respond to the energy generated by the DC switch during operation. The heat is absorbed, so that the DC switch can be cooled down, which can further improve the heat dissipation efficiency of the DC switch. The fourth evaporator has a fourth exhaust port and a fourth liquid inlet. The fourth evaporator is located in the second installation cavity and is fitted with the AC switch. The fourth exhaust port is connected to the second end of the air inlet pipe. The four liquid inlets are connected with the second end of the liquid discharge pipe. The fourth evaporator can directly absorb the heat generated by the AC switch during operation, thereby cooling the AC switch and further improving the heat dissipation efficiency of the AC switch.

Specifically, after absorbing heat and evaporating into gas, the phase change working fluid in the third evaporator can flow into the air inlet pipe through the third exhaust port, and then enter the condenser for condensation under the action of capillary force. After the gaseous phase change working fluid in the condenser releases heat and condenses into a liquid phase changing working fluid, it can enter the evaporator through the drain pipe under the action of gravity to evaporate and absorb heat again, thereby realizing the phase change working fluid in the third phase. The three evaporators and condensers circulate to continuously cool the third cavity.

Specifically, after absorbing heat and evaporating into gas, the phase change working fluid in the fourth evaporator can flow into the air inlet pipe through the fourth exhaust port, and then enter the condenser for condensation under the action of capillary force. After the gaseous phase change working fluid in the condenser releases heat and condenses into a liquid phase changing working fluid, it can enter the evaporator through the drain pipe under the action of gravity to evaporate and absorb heat again, thereby realizing the phase change working fluid in the third phase. The four evaporators and condensers circulate to continuously cool the fourth cavity.

In one technical solution of the present application, the first evaporator is coupled to the power module, and the evaporator assembly further includes a fifth evaporator. The fifth evaporator has a fifth exhaust port and a fifth liquid inlet. The evaporator is located in the first installation cavity, the fifth exhaust port is connected to the second end of the air inlet pipe, and the fifth liquid inlet is connected to the second end of the liquid discharge pipe.

In this technical solution, the first evaporator is coupled to the power module, so that during the evaporation and heat absorption process, the first evaporator can directly absorb the heat generated by the power module during operation, thereby accurately The power module is cooled down, thereby further improving the heat dissipation efficiency of the power module. The evaporator assembly also includes a fifth evaporator. The fifth evaporator has a fifth exhaust port and a fifth liquid inlet. The fifth evaporator is located in the first installation cavity, so that the fifth evaporator can control the first installation cavity. It absorbs the heat generated by other components in the first installation cavity to dissipate heat in the first installation cavity. On the basis of the first evaporator dissipating heat to the power module, it can further absorb the remaining heat in the first installation cavity, thereby reducing the second installation cavity. Once the temperature in the installation cavity is determined, the fifth exhaust port is connected to the second end of the air inlet pipe, and the fifth liquid inlet is connected to the second end of the liquid discharge pipe. The phase change working fluid in the fifth evaporator can flow into the air inlet pipe through the fifth exhaust port after absorbing heat and evaporating into a gaseous phase change working fluid, and then enters the condenser for condensation under the action of capillary force. . After the phase change working fluid in the condenser releases heat and condenses into a liquid phase change working fluid, it can enter the evaporator through the drain pipe under the action of gravity to evaporate and absorb heat again, thereby realizing the phase change working fluid in the fifth phase. The evaporator and condenser circulate and flow to continuously cool the fifth cavity.

In one technical solution of the present application, the phase change cooling energy storage converter further includes a first fan and a second fan. The first fan is located on a side of the first installation cavity away from the fifth evaporator. The first fan is connected to the first fan. The five evaporators are arranged oppositely; the second fan is located on a side of the second installation cavity away from the second evaporator, and the second fan is arranged opposite to the second evaporator.

In this technical solution, the phase change cooling energy storage converter further includes a first fan and a second fan; the first fan is located on the side of the first installation cavity away from the fifth evaporator, and the first fan is connected to the fifth evaporator. They are arranged oppositely so that the first fan can blow the heated air in the first installation cavity to the fifth evaporator, which can improve the heat exchange efficiency of the fifth evaporator. The second fan is located on a side of the second installation cavity away from the second evaporator. The second fan is opposite to the second evaporator so that the first fan can blow the heated air in the first installation cavity toward the second evaporator. evaporator, which can improve the heat exchange efficiency of the second evaporator.

Specifically, the first fan and the second fan are located at the bottom of the cabinet, and the second evaporator and the fifth evaporator are located at the top of the cabinet, so that air from the bottom of the first installation cavity and the second installation cavity can be blown toward the first installation cavity and the top of the second installation cavity so that the second evaporator and the fifth evaporator absorb heat for evaporation.

Specifically, the phase change cooling energy storage converter also includes a third fan. The third fan is arranged outside the cabinet. The third fan is arranged opposite to the condenser, which can speed up the working efficiency of the condenser. Therefore, the power of the condenser can be reduced. volume, thus reducing the cost of the condenser.

In one technical solution of the present application, the power module includes a plurality of power components; the first evaporator is attached to at least one of the plurality of power components.

In this technical solution, the power module includes a plurality of power components; the first evaporator is attached to at least one of the plurality of power components. Since the power component is working, the component that mainly generates heat is the power module. There are multiple power components in the power component. Therefore, the first evaporator is attached to at least one power component among the multiple power components, which can directly absorb heat and cool down the power component that generates heat, thereby realizing the power module. Cooling to achieve the purpose of cooling the phase change cooling energy storage converter to improve heat dissipation efficiency.

Specifically, the plurality of power components are a first power component, a second power component and a third power component, and the first evaporator is fitted with the first power component, the second power component and the third power component to achieve cooling. Purpose.

Specifically, the plurality of power components are a first power component, a second power component and a third power component, the number of first evaporators is three, and the three first evaporators are connected with the first power component, the second power component and The third power components are respectively attached to each other, so that the three first evaporators can independently dissipate heat to the first power component, the second power component and the third power component to achieve the purpose of cooling.

In one technical solution of the present application, the power module includes a plurality of power components, each power component of the plurality of power components includes a plurality of heating components; the first evaporator is connected to at least one heating component of the plurality of heating components. fit.

In this technical solution, the power module includes multiple power components, and each of the multiple power components includes multiple heating components; since heat is mainly generated by multiple heating components in each power component, the third An evaporator is fitted with at least one heating component among the plurality of heating components, thereby absorbing heat and cooling the power module more accurately to achieve the purpose of cooling the phase change cooling energy storage converter to improve heat dissipation. efficiency.

Specifically, the plurality of heating components are a first heating component, a second heating component and a third heating component. The first evaporator is attached to the first heating component, the second heating component and the third heating component to achieve cooling. Purpose.

Specifically, the plurality of heating components are a first heating component, a second heating component and a third heating component. The number of first evaporators is three. The three first evaporators are connected with the first heating component, the second heating component and The third heating components are respectively attached to each other, so that the three first evaporators can independently dissipate heat to the first heating component, the second heating component and the third heating component to achieve the purpose of cooling.

Specifically, the heating component is a semiconductor module.

In one technical solution of the present application, the power module includes a plurality of power components, each power component of the plurality of power components includes a plurality of heating elements; the first evaporator is in contact with at least one heating element of the plurality of heating elements. fit.

In this technical solution, the power module includes multiple power components, and each of the multiple power components includes multiple heating elements; since the multiple heating elements are the most important components that generate heat in the entire power module, By fitting the first evaporator with at least one heating element among the plurality of heating elements, the heating element can be dissipated more accurately and the heat dissipation efficiency can be improved.

Specifically, the plurality of heating elements are a first heating element, a second heating element and a third heating element, and the first evaporator is attached to the first heating element, the second heating element and the third heating element to achieve cooling. Purpose.

Specifically, the plurality of heating elements are a first heating element, a second heating element and a third heating element, the number of first evaporators is three, and the three first evaporators are connected with the first heating element, the second heating element and The third heating elements are respectively attached together, so that the three first evaporators can independently dissipate heat to the first heating element, the second heating element and the third heating element to achieve the purpose of cooling.

Specifically, the heating element is a semiconductor wafer.

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.

Description of the drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

Figure 1 shows one of the schematic diagrams of a phase change cooling energy storage converter according to an embodiment of the present application;

Figure 2 shows the second schematic diagram of a phase change cooling energy storage converter according to an embodiment of the present application;

Figure 3 shows one of the schematic diagrams of a power module according to an embodiment of the present application;

Figure 4 shows the second schematic diagram of a power module according to an embodiment of the present application;

Figure 5 shows one of the schematic diagrams of a power component according to an embodiment of the present application;

FIG. 6 shows the second schematic diagram of a power component according to an embodiment of the present application.

Among them, the corresponding relationship between the reference signs and component names in Figures 1 to 6 is:

100 phase change cooling energy storage converter, 110 cabinet, 112 first installation cavity, 114 second installation cavity, 120 devices, 122 power module, 1222 power components, 1224 heating element, 124 filter, 126 DC switch, 128 AC switch, 130 condenser, 132 air inlet pipe, 134 liquid drain pipe, 140 evaporator assembly, 142 first evaporator, 144 second evaporator, 146 third evaporator, 148 fourth evaporator, 149 fifth evaporator device, 150 first fan, 160 second fan, 170 third fan.

Detailed ways

In order to understand the above-mentioned objects, features and advantages of the present application more clearly, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, as long as there is no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

Many specific details are set forth in the following description to fully understand the present application. However, the present application can also be implemented in other ways different from those described here. Therefore, the protection scope of the present application is not limited by the specific disclosures below. Limitations of Examples.

The phase change cooling energy storage converter 100 according to some embodiments of the present application is described below with reference to FIGS. 1 to 6 .

Example 1

As shown in Figures 1 and 2, this embodiment provides a phase change cooling energy storage converter 100, which includes a cabinet 110, a device 120, a condenser 130, an evaporator assembly 140 and a phase change working medium. The device 120 is installed inside the cabinet 110; the condenser 130 is installed outside the cabinet 110; the evaporator assembly 140 is installed inside the cabinet 110, and the evaporator assembly 140 is connected with the condenser 130; the phase change working fluid can be in the condenser 130 and the evaporator assembly 140; wherein, the evaporator assembly 140 and the condenser 130 have a height difference, and the phase change working fluid in the condenser 130 can flow to the evaporator assembly 140 under the action of gravity. The phase change working fluid can flow to the condenser 130 .

In this embodiment, the phase change cooling energy storage converter 100 includes a cabinet 110, a device 120, a condenser 130, an evaporator assembly 140 and a phase change working medium. The device 120 is arranged in the cabinet 110 to realize the installation and fixation of the device 120 . The condenser 130 is arranged outside the cabinet 110 to realize the installation of the condenser 130 . The evaporator assembly 140 is arranged in the cabinet 110 to realize the installation and fixation of the evaporator assembly 140. The evaporator assembly 140 is connected with the condenser 130, and the phase change working medium can flow between the condenser 130 and the evaporator assembly 140. , thereby facilitating the phase change working fluid to circulate between the condenser 130 and the evaporator assembly 140 . The evaporator assembly 140 and the condenser 130 have a height difference, that is, the condenser 130 is located above the evaporator assembly 140 so that the height of the condenser 130 is higher than the height of the evaporator assembly 140 . When there is a height difference between the evaporator assembly 140 and the condenser 130, the phase change working fluid in the condenser 130 can flow to the evaporator assembly 140 under the action of gravity. When the device 120 dissipates heat, the phase change working fluid in the evaporator assembly 140 can evaporate and absorb heat, causing the phase change working fluid to change from a liquid state to a gaseous state, absorbing heat in the cabinet 110, and the phase change working fluid after changing to a gaseous state can flow to Condenser 130. In the condenser 130, the gaseous phase change working fluid will be condensed into a liquid state, thereby discharging heat to the outside world, and flowing to the evaporator assembly 140 under the action of gravity, so that the phase change working fluid can be evaporated in the evaporator. The circulating flow between the component 140 and the condenser 130 component can take away the heat emitted by the device 120 in the cabinet 110 during operation, thereby reducing the temperature in the cabinet 110 and ensuring the stability of the device 120 during operation. Therefore, the heat dissipation efficiency of the phase change cooling energy storage converter 100 can be improved.

Specifically, when the temperature inside the cabinet 110 is higher than a predetermined value, that is, when the temperature inside the cabinet 110 is higher than the boiling point of the phase change medium in the evaporator assembly 140, the liquid phase change medium will boil, evaporate and change into a gaseous state. During this process, the phase change working fluid will absorb the heat in the cabinet 110, and the high-temperature gaseous phase change working fluid will flow to the condenser 130 under the action of capillary force, and the cabinet 110 can be The heat inside is brought into the condenser 130.

Specifically, the boiling point of the phase change working fluid can be adjusted according to the demand, and thus the temperature of the phase change cooling energy storage converter 100 can be controlled.

Specifically, the phase change working fluid is FC-72 fluorinated liquid.

Specifically, the phase change working fluid is R134a (tetrafluoroethane).

As shown in FIG. 1 , the direction of the arrow on the right side of the first installation cavity 112 is the flow direction of the hot air in the first installation cavity 112 , and the direction of the arrow on the left side of the first installation cavity 112 is after heat exchange in the first installation cavity 112 . The direction of the cold air flow. The direction of the arrow on the left side of the second installation cavity 114 is the flow direction of the hot air in the second installation cavity 114 , and the direction of the arrow on the right side of the second installation cavity 114 is the flow direction of the cool air after heat exchange in the second installation cavity 114 .

Example 2

This embodiment provides a phase change cooling energy storage converter 100. In addition to the technical features of the above embodiment, this embodiment further includes the following technical features.

As shown in Figures 1 and 2, the cabinet 110 has a first installation cavity 112 and a second installation cavity 114; the device 120 includes a power module 122 and a filter 124; the power module 122 is disposed in the first installation cavity 112; The filter 124 is located in the second installation cavity 114 , and the first end of the filter 124 is connected to the first end of the power module 122 .

In this embodiment, the cabinet 110 has a first installation cavity 112 and a second installation cavity 114 so that the first installation cavity 112 and the second installation cavity 114 can provide installation space for the device 120 . The power module 122 is disposed in the first installation cavity 112, which can provide an installation space for the power component 1222, thereby realizing the installation of the power module 122. The filter 124 is disposed in the second installation cavity 114, which can provide an installation space for the filter 124, thereby realizing the installation of the filter 124. The first end of the filter 124 is connected to the first end of the power module 122, so that the filter 124 can effectively suppress the harmonics generated by the power component 1222 during operation to ensure phase change cooling of the energy storage converter 100 of normal operation. Specifically, the filter 124 includes a capacitor and a first reactor.

Specifically, the filter 124 includes a capacitor, a first reactor, and a second reactor.

Example 3

As shown in Figures 1 and 2, the condenser 130 includes an air inlet, a liquid discharge port, an air inlet pipe 132 and a liquid discharge pipe 134. The first end of the air inlet pipe 132 is connected to the air inlet, and the third end of the liquid discharge pipe 134 is connected to the air inlet. One end is connected to the drain pipe 134; the evaporator assembly 140 includes a first evaporator 142 and a second evaporator 144; the first evaporator 142 has a first exhaust port and a first liquid inlet, and the first evaporator 142 Located in the first installation cavity 112, the first exhaust port is connected to the second end of the air inlet pipe 132, the first liquid inlet is connected to the second end of the drain pipe 134; the second evaporator 144 has a second row The second evaporator 144 is located in the second installation cavity 114, the second exhaust port is connected to the second end of the air inlet pipe 132, and the second liquid inlet is connected to the second end of the discharge pipe 134. The two ends are connected.

In this embodiment, the condenser 130 includes an air inlet, a liquid drain, an air inlet pipe 132 and a liquid drain pipe 134. The first end of the air inlet pipe 132 is connected to the air inlet, and the first end of the drain pipe 134 is connected to the air inlet. The drain pipe 134 is connected; the evaporator assembly 140 includes a first evaporator 142 and a second evaporator 144 so that the first evaporator 142 and the second evaporator 144 can be installed in the first installation cavity 112 and the second installation cavity 114 Evaporation and heat absorption are performed in the first installation cavity 112 and the second installation cavity 114 to reduce the temperature. The first evaporator 142 has a first exhaust port and a first liquid inlet. The first evaporator 142 is located in the first installation cavity 112 . The first exhaust port is connected to the second end of the air inlet pipe 132 . The liquid port is connected to the second end of the liquid discharge pipe 134, so that the phase change working fluid in the first evaporator 142 can flow into the air inlet pipe 132 through the first exhaust port after being evaporated into gas, so that under the influence of capillary force It enters the condenser 130 for condensation. After condensation, the phase change working fluid in the condenser 130 can enter the evaporator through the drain pipe 134 under the action of gravity to evaporate and absorb heat again, thereby realizing the transfer of the phase change working fluid between the first evaporator 142 and the condenser 130 Circular flow is performed to continuously cool down the first installation cavity 112 . The second evaporator 144 has a second exhaust port and a second liquid inlet. The second evaporator 144 is located in the second installation cavity 114 . The second exhaust port is connected to the second end of the air inlet pipe 132 . The liquid port is connected to the second end of the drain pipe 134 . This allows the phase change working fluid in the second evaporator 144 to flow into the air inlet pipe 132 through the second exhaust port after evaporating into gas, and then enter the condenser 130 for condensation under the action of capillary force. After condensation, the phase change working fluid in the condenser 130 can enter the evaporator through the drain pipe 134 under the action of gravity to evaporate and absorb heat again, thereby realizing the transfer of the phase change working fluid in the second evaporator 144 and the condenser 130 Circular flow is performed to continuously cool down the second installation cavity 114 , thereby achieving heat dissipation in the second installation cavity 114 .

Example 4

As shown in Figures 1 and 2, the device 120 also includes a DC switch 126 and an AC switch 128; the DC switch 126 is located in the first installation cavity 112, and the first end of the DC switch 126 is connected to the second end of the power module 122. ; The AC switch 128 is located in the second installation cavity 114, and the first end of the AC switch 128 is connected to the second end of the filter 124.

In this embodiment, the DC switch 126 is located in the first installation cavity 112 so that the first installation cavity 112 provides a certain space for the installation of the DC switch 126 . The first end of the DC switch 126 is connected to the second end of the power module 122, so that when the power module 122 converts AC power into DC power, the DC switch 126 can protect the circuit to avoid damage to the battery due to excessive current. The AC switch 128 is located in the second installation cavity 114, and the first end of the AC switch 128 is connected to the second end of the filter 124, thereby realizing the installation of the AC switch 128. The first end of the AC switch 128 is connected to the second end of the filter 124, so that when the phase change cooling energy storage converter 100 converts DC power into AC power, the AC switch 128 can protect the circuit to avoid damage caused by excessive current. Damage caused by external power grid.

Example 5

As shown in FIG. 2 , the first evaporator 142 is attached to the power module 122 ; the second evaporator 144 is attached to the filter 124 ; the evaporator assembly 140 also includes a third evaporator 146 and a fourth evaporator 148 The third evaporator 146 has a third exhaust port and a third liquid inlet. The third evaporator 146 is located in the first installation cavity 112 and is in contact with the DC switch 126. The third exhaust port is connected to the third inlet of the air inlet pipe 132. The two ends are connected, and the third liquid inlet is connected to the second end of the drain pipe 134; the fourth evaporator 148 has a fourth exhaust port and a fourth liquid inlet, and the fourth evaporator 148 is located in the second installation cavity 114 is fitted with the AC switch 128, the fourth exhaust port is connected to the second end of the air inlet pipe 132, and the fourth liquid inlet is connected to the second end of the drain pipe 134.

In this embodiment, the first evaporator 142 is coupled to the power module 122 so that the first evaporator 142 can directly absorb the heat generated by the power module 122 during operation during evaporation and heat absorption. Since the power module 122 is the main component that generates heat, the power module 122 can be cooled down accurately, thereby further improving the heat dissipation efficiency of the power module 122 . The evaporator assembly 140 also includes a third evaporator 146 and a fourth evaporator 148; the third evaporator 146 has a third exhaust port and a third liquid inlet, and the third evaporator 146 is located in the first installation cavity 112 and communicates with the DC The switch 126 is fitted so that the third exhaust port of the third evaporator 146 is connected to the second end of the air inlet pipe 132, and the third liquid inlet is connected to the second end of the drain pipe 134; the third evaporator 146 can directly absorb the heat generated by the DC switch 126 during operation, thereby cooling the DC switch 126 and further improving the heat dissipation efficiency of the DC switch 126 . The fourth evaporator 148 has a fourth exhaust port and a fourth liquid inlet. The fourth evaporator 148 is located in the second installation cavity 114 and is aligned with the AC switch 128 . The fourth exhaust port is connected to the second portion of the air inlet pipe 132 . The fourth liquid inlet is connected with the second end of the liquid discharge pipe 134 . The fourth evaporator 148 can directly absorb the heat generated by the AC switch 128 during operation, thereby cooling the AC switch 128 and further improving the heat dissipation efficiency of the AC switch 128 .

Specifically, after absorbing heat and evaporating into gas, the phase change working fluid in the third evaporator 146 can flow into the air inlet pipe 132 through the third exhaust port, and then enter the condenser 130 for condensation under the action of capillary force. . After the gaseous phase change working fluid in the condenser 130 releases heat and condenses into a liquid phase change working fluid, it can enter the evaporator through the drain pipe 134 under the action of gravity and evaporate again to absorb heat, thereby realizing the phase change working fluid. Circular flow is carried out in the third evaporator 146 and the condenser 130 to continuously cool the third cavity.

Specifically, after absorbing heat and evaporating into gas, the phase change working fluid in the fourth evaporator 148 can flow into the air inlet pipe 132 through the fourth exhaust port, and then enter the condenser 130 for condensation under the action of capillary force. . After the gaseous phase change working fluid in the condenser 130 releases heat and condenses into a liquid phase change working fluid, it can enter the evaporator through the drain pipe 134 under the action of gravity and evaporate again to absorb heat, thereby realizing the phase change working fluid. Circular flow is carried out in the fourth evaporator 148 and the condenser 130 to continuously cool the fourth cavity.

Example 6

As shown in Figure 1, the first evaporator 142 is coupled with the power module 122. The evaporator assembly 140 also includes a fifth evaporator 149. The fifth evaporator 149 has a fifth exhaust port and a fifth liquid inlet. The fifth evaporator 149 is located in the first installation cavity 112 , the fifth exhaust port is connected to the second end of the air inlet pipe 132 , and the fifth liquid inlet is connected to the second end of the discharge pipe 134 .

In this embodiment, the first evaporator 142 is coupled to the power module 122 so that the first evaporator 142 can directly absorb the heat generated by the power module 122 during operation during evaporation and heat absorption. , so that the power module 122 can be cooled down accurately, and the heat dissipation efficiency of the power module 122 can be further improved. The evaporator assembly 140 also includes a fifth evaporator 149. The fifth evaporator 149 has a fifth exhaust port and a fifth liquid inlet. The fifth evaporator 149 is located in the first installation cavity 112, so that the fifth evaporator 149 The heat generated by other components in the first installation cavity 112 can be absorbed to dissipate heat in the first installation cavity 112. On the basis of the first evaporator 142 dissipating heat to the power module 122, the first installation cavity can be further dissipated. 112 to absorb the remaining heat, thereby reducing the temperature in the first installation cavity 112. The fifth exhaust port is connected to the second end of the air inlet pipe 132, and the fifth liquid inlet is connected to the second end of the drain pipe 134. connect. The phase change working fluid in the fifth evaporator 149 can flow into the air inlet pipe 132 through the fifth exhaust port after absorbing heat and evaporating into a gaseous phase change working fluid, and then enters the condenser 130 under the action of capillary force. Condensation takes place within. After the phase change working fluid in the condenser 130 releases heat and condenses into a liquid phase change working fluid, it can enter the evaporator through the drain pipe 134 under the action of gravity to evaporate and absorb heat again, thereby realizing the phase change working fluid in the condenser 130 . The fifth evaporator 149 and the condenser 130 circulate and flow to continuously cool the fifth cavity.

Example 7

As shown in Figure 1, the phase change cooling energy storage converter 100 also includes a first fan 150 and a second fan 160; the first fan 150 is located on the side of the first installation cavity 112 away from the fifth evaporator 149. The fan 150 is arranged opposite to the fifth evaporator 149 . The second fan 160 is located on a side of the second installation cavity 114 away from the second evaporator 144 . The second fan 160 is arranged opposite to the second evaporator 144 .

In this embodiment, the phase change cooling energy storage converter 100 also includes a first fan 150 and a second fan 160; the first fan 150 is located on a side of the first installation cavity 112 away from the fifth evaporator 149. The fan 150 is arranged opposite to the fifth evaporator 149, so that the first fan 150 can blow the heated air in the first installation cavity 112 to the fifth evaporator 149, which can improve the heat exchange efficiency of the fifth evaporator 149. The second fan 160 is located on a side of the second installation cavity 114 away from the second evaporator 144 . The second fan 160 is opposite to the second evaporator 144 so that the first fan 150 can heat the inside of the first installation cavity 112 . The air is blown to the second evaporator 144, which can improve the heat exchange efficiency of the second evaporator 144.

Specifically, the first fan 150 and the second fan 160 are located at the bottom of the cabinet 110 , and the second evaporator 144 and the fifth evaporator 149 are located at the top of the cabinet 110 , so that the first installation cavity 112 and the second installation cavity 114 can be The air at the bottom is blown to the top of the first installation cavity 112 and the second installation cavity 114, so that the second evaporator 144 and the fifth evaporator 149 evaporate and absorb heat.

Specifically, the phase change cooling energy storage converter 100 also includes a third fan 170. The third fan 170 is disposed outside the cabinet 110. The third fan 170 is disposed opposite the condenser 130, thereby speeding up the working efficiency of the condenser 130. Therefore, the volume of the condenser 130 can be reduced, and thus the cost of the condenser 130 can be reduced.

Example 8

As shown in FIGS. 3 and 4 , the power module 122 includes a plurality of power components 1222 ; the first evaporator 142 is coupled with at least one power component 1222 of the plurality of power components 1222 .

In this embodiment, the power module 122 includes a plurality of power components 1222; the first evaporator 142 is attached to at least one power component 1222 of the plurality of power components 1222, because the power component 1222 mainly generates heat when working. The components are a plurality of power components 1222 in the power module 122. Therefore, the first evaporator 142 and at least one power component 1222 of the plurality of power components 1222 can be directly connected to the power component 1222 that generates heat. Heat absorption and cooling are performed to achieve cooling of the power module 122 to achieve the purpose of cooling the phase change cooling energy storage converter 100 to improve heat dissipation efficiency.

Specifically, as shown in FIG. 3 , the plurality of power components 1222 are first power components, second power components, and third power components, and the first evaporator 142 is connected with the first power component, the first power component, and the first power component. fit together to achieve the purpose of cooling.

Specifically, the plurality of power components 1222 are a first power component, a second power component and a third power component. The number of the first evaporators 142 is three. The three first evaporators 142 are connected with the first power component, the second power component. The power component and the third power component are respectively attached together, so that the three first evaporators 142 can independently dissipate heat from the first power component, the second power component and the third power component to achieve the purpose of cooling.

Specifically, in Figures 3 and 4, A is the AC output of the first power component, B is the AC output of the second power component, and C is the AC output of the third power component.

Specifically, as shown in Figure 4, the first evaporator is coupled with the first power component.

Example 9

As shown in FIGS. 4 and 5 , the power module 122 includes a plurality of power components 1222 , and each power component 1222 of the plurality of power components 1222 includes a plurality of heating components; the first evaporator 142 and one of the plurality of heating components At least one heating component is in contact with each other.

In this embodiment, the power module 122 includes multiple power components 1222, and each power component 1222 of the multiple power components 1222 includes multiple heating components; since each power component 1222 is mainly composed of multiple heating components Heat is generated, and the first evaporator 142 is coupled with at least one heating component among the plurality of heating components, so that the power module 122 can be more accurately absorbed and cooled to achieve phase change cooling of the energy storage converter 100 The purpose of cooling is to improve heat dissipation efficiency.

Specifically, the plurality of heating components are a first heating component, a second heating component and a third heating component, and the first evaporator 142 is attached to the first heating component, the second heating component and the third heating component to achieve cooling. the goal of.

Specifically, the plurality of heating components are a first heating component, a second heating component and a third heating component. The number of the first evaporators 142 is three. The three first evaporators 142 are connected with the first heating component, the second heating component. The components and the third heating component are respectively attached together, so that the three first evaporators 142 can independently dissipate heat to the first heating component, the second heating component and the third heating component to achieve the purpose of cooling.

Specifically, as shown in FIG. 5 , the first evaporator 142 is coupled with a heating component.

Specifically, A in Figure 5 is the AC output of the first power component.

Specifically, the heating component is a semiconductor module.

Example 10

As shown in FIGS. 5 and 6 , the power module 122 includes a plurality of power components 1222 , and each power component 1222 of the plurality of power components 1222 includes a plurality of heating elements 1224 ; the first evaporator 142 and the plurality of heating elements 1224 At least one heating element 1224 is in contact with each other.

In this embodiment, the power module 122 includes multiple power components 1222 , and each power component 1222 of the multiple power components 1222 includes multiple heating elements 1224 ; since the multiple heating elements 1224 are the largest components in the entire power module 122 The main heat-generating element is to fit the first evaporator 142 to at least one heating element 1224 among the plurality of heating elements 1224, so that the heating element 1224 can be dissipated more accurately and the heat dissipation efficiency can be improved. Specifically, A in Figure 6 is the AC output of the first power component.

Specifically, the plurality of heating elements 1224 are first heating elements, second heating elements and third heating elements, and the first evaporator 142 is attached to the first heating element, the second heating element and the third heating element to achieve cooling purpose.

Specifically, the plurality of heating elements 1224 are first heating elements, second heating elements and third heating elements. The number of first evaporators 142 is three. The three first evaporators 142 are connected with the first heating element, the second heating element. The heating element and the third heating element are respectively attached together, so that the three first evaporators 142 can independently dissipate heat to the first heating element, the second heating element and the third heating element to achieve the purpose of cooling. Specifically, the heating element 1224 is a semiconductor wafer.

In the claims, description and drawings of this application, the term "plurality" refers to two or more than two, unless there is additional explicit limitation, and the terms "upper", "lower", etc. indicate the orientation or position. The relationship is based on the orientation or positional relationship shown in the drawings, which is only for the purpose of describing the present application more conveniently and making the description process simpler, and is not intended to indicate or imply that the device or element referred to must have the specific orientation described. Specific orientation construction and operation, therefore these descriptions cannot be understood as limitations of the present application; the terms "connection", "installation", "fixing", etc. should be understood in a broad sense. For example, "connection" can be between multiple objects. The fixed connection can also be a detachable connection between multiple objects, or an integrated connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood based on the specific circumstances of the above data.

In the claims, description and drawings of this application, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means the specific features, structures described in connection with the embodiment or example , materials or features are included in at least one embodiment or example of the present application. In the claims, description and drawings of this application, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above descriptions are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included in the protection scope of this application.

Claims

A phase change cooling energy storage converter, which includes:

Cabinet;

Device, the device is arranged in the cabinet;

Condenser, the condenser is arranged outside the cabinet;

An evaporator assembly, the evaporator assembly is arranged in the cabinet, and the evaporator assembly is connected with the condenser;

a phase change working fluid capable of flowing between the condenser and the evaporator assembly;

Wherein, there is a height difference between the evaporator assembly and the condenser, the phase change working fluid in the condenser can flow to the evaporator assembly under the action of gravity, and the phase change fluid in the evaporator assembly can flow to the evaporator assembly under the action of gravity. The phase change working fluid can flow to the condenser.
The phase change cooling energy storage converter according to claim 1, wherein the cabinet has a first installation cavity and a second installation cavity; the device includes:

A power module, the power module is arranged in the first installation cavity;

A filter is located in the second installation cavity, and the first end of the filter is connected to the first end of the power module.
The phase change cooling energy storage converter according to claim 2, wherein the condenser includes an air inlet, a liquid discharge port, an air inlet pipe and a liquid discharge pipe, and the first end of the air inlet pipe is connected with the inlet pipe. The gas port is connected, and the first end of the liquid drain pipe is connected to the liquid drain pipe; the evaporator assembly includes:

A first evaporator. The first evaporator has a first exhaust port and a first liquid inlet. The first evaporator is located in the first installation cavity. The first exhaust port is connected to the first liquid inlet. The second end of the air pipe is connected, and the first liquid inlet is connected with the second end of the liquid discharge pipe;

A second evaporator. The second evaporator has a second exhaust port and a second liquid inlet. The second evaporator is located in the second installation cavity. The second exhaust port is connected to the inlet. The second end of the air pipe is connected, and the second liquid inlet is connected with the second end of the liquid discharge pipe.
The phase change cooling energy storage converter according to claim 3, wherein the device further includes:

A DC switch, the DC switch is located in the first installation cavity, and the first end of the DC switch is connected to the second end of the power module;

An AC switch is located in the second installation cavity, and the first end of the AC switch is connected to the second end of the filter.
The phase change cooling energy storage converter according to claim 4, wherein the first evaporator is attached to the power module; the second evaporator is attached to the filter; The evaporator assembly also includes:

A third evaporator, the third evaporator has a third exhaust port and a third liquid inlet, the third evaporator is located in the first installation cavity and fits the DC switch, and the third evaporator has a third exhaust port and a third liquid inlet. The three exhaust ports are connected to the second end of the air inlet pipe, and the third liquid inlet is connected to the second end of the liquid discharge pipe;

A fourth evaporator, the fourth evaporator has a fourth exhaust port and a fourth liquid inlet, the fourth evaporator is located in the second installation cavity and fits the AC switch, and the fourth evaporator has a fourth exhaust port and a fourth liquid inlet. Four exhaust ports are connected to the second end of the air inlet pipe, and the fourth liquid inlet is connected to the second end of the liquid discharge pipe.
The phase change cooling energy storage converter according to claim 4, wherein the first evaporator is attached to the power module, and the evaporator assembly further includes:

A fifth evaporator. The fifth evaporator has a fifth exhaust port and a fifth liquid inlet. The fifth evaporator is located in the first installation cavity. The fifth exhaust port is connected with the inlet. The second end of the air pipe is connected, and the fifth liquid inlet is connected with the second end of the liquid discharge pipe.
The phase change cooling energy storage converter according to claim 6, further comprising:

a first fan, the first fan is located on a side of the first installation cavity away from the fifth evaporator, and the first fan is arranged opposite to the fifth evaporator;

A second fan is located on a side of the second installation cavity away from the second evaporator, and is arranged opposite to the second evaporator.
The phase change cooling energy storage converter according to claim 5 or 6, wherein the power module includes a plurality of power components;

The first evaporator is in contact with at least one of the plurality of power components.
The phase change cooling energy storage converter according to claim 5 or 6, wherein the power module includes a plurality of power components, and each of the plurality of power components includes a plurality of heat-generating components. ;

The first evaporator is attached to at least one of the plurality of heating components.
The phase change cooling energy storage converter according to claim 5 or 6, wherein the power module includes a plurality of power components, and each of the plurality of power components includes a plurality of heating elements. ;

The first evaporator is attached to at least one of the plurality of heating elements.