Ventilation liquid-cooled energy storage convergence device and energy storage system

Abstract

The utility model provides a ventilation liquid-cooled energy storage convergence device, comprising an energy storage convergence box provided with an electrical cabin; the temperature detection module is installed in the electrical cabin of the energy storage combiner box; the temperature adjusting module is provided with a liquid cooling machine body, a conveying pipeline and a heat exchange device, the liquid cooling machine body communicates with the heat exchange device through the conveying pipeline, and the heat exchange device is installed in the electrical bin; the BMS control module, the temperature detection module, the liquid cooling machine body and the heat exchange device are electrically connected with the BMS control module; and the BMS control module can start the heat exchange device according to a temperature signal monitored by the temperature detection module, so that the heat exchange medium supplied to the heat exchange device by the liquid cooling machine body exchanges heat with the gas in the electrical cabin. In addition, the utility model further discloses an energy storage system using the ventilation liquid-cooled energy storage convergence device, the temperature adjustment of an electrical bin in an energy storage convergence box can be realized, and the problem that the electrical performance is influenced due to the fact that the temperature of an electrical element is too high or too low is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, and in particular to a ventilated liquid-cooled energy storage confluence device and an energy storage system. Background Art

[0002] In related technologies, the energy storage junction box of the energy storage junction device usually has a battery compartment, an electrical compartment and a thermal management compartment. Among them, the electrical compartment is used to place the junction cabinet. The function of the junction cabinet is to converge the electric energy of the battery cluster in the energy storage junction box, control the power distribution and protect the electric energy. The junction cabinet is installed with electrical components such as switches, UPS uninterruptible power supplies and buses.

[0003] When the external environment temperature of the energy storage combiner box of the energy storage combiner device is higher than 40°C, since the outer shell of the energy storage combiner box is provided with thermal insulation cotton, if the energy storage combiner device is in the charging and discharging state, the electrical components inside the combiner cabinet will heat up, causing the temperature of the electrical compartment in the energy storage combiner box to rise to above 60°C. If the electrical components operate at a temperature of 60°C for a long time, the service life of the electrical components will be shortened, the electrical performance of the electrical components will be reduced, and the safety risks of the energy storage combiner device will be increased.

[0004] When the external environment temperature of the energy storage combiner box of the energy storage combiner device is -10℃ or below, long-term placement may easily cause the temperature of the electrical compartment in the energy storage combiner box to be equal to the external environment temperature of the energy storage combiner box. Alternatively, the energy storage combiner box will be opened during the debugging stage, so that the inside of the energy storage combiner box is connected to the outside of the energy storage combiner box. In this case, if the energy storage combiner device is in the charging and discharging state, the electrical components inside the combiner cabinet, especially the UPS uninterruptible power supply, will have poor electrical performance or even fail to operate under low temperature conditions, resulting in the entire energy storage combiner device being unable to operate normally. Utility Model Content

[0005] The embodiments of the present invention provide a ventilated liquid-cooled energy storage junction device and energy storage system, which can realize temperature regulation of the electrical compartment in the energy storage junction box, and effectively avoid the problem of electrical components being at too high or too low a temperature and affecting electrical performance.

[0006] In a first aspect, an embodiment of the present invention provides a ventilated liquid-cooled energy storage confluence device, comprising:

[0007] Energy storage combiner box, equipped with electrical compartment;

[0008] A temperature detection module is installed in the electrical compartment;

[0009] A temperature regulating module having a liquid cooling body, a delivery pipe, and a heat exchange device, wherein the liquid cooling body is connected to the heat exchange device through the delivery pipe, and the heat exchange device is installed in the electrical compartment;

[0010] BMS control module, the temperature detection module, the liquid cooling body and the heat exchange device are all electrically connected to the BMS control module;

[0011] The BMS control module can start the heat exchange device according to the temperature signal monitored by the temperature detection module, so that the heat exchange medium supplied to the heat exchange device by the liquid cooling body can exchange heat with the gas in the electrical compartment.

[0012] In one embodiment, the heat exchange device includes an axial flow fan and a heat exchange main unit, the heat exchange main unit includes a heat exchange shell and a heat exchange element, the heat exchange shell is provided with a heat exchange chamber and a heat exchange through hole connected to the heat exchange chamber, the heat exchange element is arranged in the heat exchange chamber, the heat exchange shell is provided with a fan port connected to the heat exchange chamber, the axial flow fan is fixedly installed at the fan port, the axial flow fan is electrically connected to the BMS control module, and the heat exchange element is connected to the liquid cooling body through the delivery pipe.

[0013] In one embodiment, the heat exchange shell further includes a water collecting base and a machine base plate, the water collecting base is provided with a water collecting chamber for collecting condensed water, the machine base plate is fixedly connected to the water collecting base, and the machine base plate and the water collecting base are arranged to form the heat exchange chamber, the heat exchange through hole is provided on the machine base plate, and the axial flow fan is bolted to the machine base plate.

[0014] In one embodiment, the direction from the water collecting base toward the heat exchange element is defined as the height direction of the heat exchange host, and a guide portion is provided on the water collecting base. The guide portion is located between the heat exchange element and the water collecting base, and the guide portion is arranged along the height direction and is inclined. A guide flow hole is provided on the guide portion.

[0015] In one embodiment, the water collecting base is provided with an injection port and a liquid outlet port, the heat exchange element is provided with a liquid inlet and a liquid outlet, and the delivery pipeline includes a first infusion tube and a second infusion tube of the water collecting chamber, one end of the first infusion tube is connected to the injection port, the other end of the first infusion tube is connected to the liquid inlet, one end of the second infusion tube is connected to the liquid outlet port, and the other end of the second infusion tube is connected to the liquid outlet.

[0016] In one embodiment, the ventilated liquid-cooled energy storage confluence device also includes a relay switch component, which includes a coil element KA, a contact switch KM, and an onboard relay arranged inside the BMS control module. The onboard relay is electrically connected to the coil element KA. The coil element KA, the contact switch KM and the axial flow fan of the heat exchange device form a control circuit. The BMS control module can control the onboard relay to be attracted so that the coil element KA attracts the contact switch KM, and the control circuit forms a closed circuit.

[0017] In one embodiment, the heat exchange element is a cooling coil.

[0018] In one embodiment, the ventilated liquid-cooled energy storage junction device also includes a UPS uninterruptible power supply, which is arranged in the electrical compartment of the energy storage junction box. The temperature detection module is used to monitor the temperature of the UPS uninterruptible power supply, and the UPS uninterruptible power supply is located within the coverage range of the air outlet end of the heat exchange device.

[0019] In one embodiment, the ventilated liquid-cooled energy storage junction device also includes a bus for switching power lines, the bus is arranged in the electrical compartment of the energy storage junction box, the temperature detection module is used to monitor the temperature of the bus, and the bus is located within the coverage range of the air outlet end of the heat exchange device.

[0020] In one embodiment, the ventilated liquid-cooled energy storage busbar device further includes a UPS uninterruptible power supply and a busbar for switching power lines. The temperature detection module and the heat exchange device are both configured in pairs, wherein one temperature detection module is used to monitor the temperature of the UPS uninterruptible power supply, and the other temperature detection module is used to monitor the temperature of the busbar.

[0021] The heat exchange device corresponding to the UPS uninterruptible power supply is defined as the first fan component, and the heat exchange device corresponding to the bus is defined as the second fan component. The UPS uninterruptible power supply is located within the coverage range of the air outlet end of the first fan component, and the bus is located within the coverage range of the air outlet end of the second fan component.

[0022] In a second aspect, an embodiment of the present invention provides an energy storage system, comprising the above-mentioned ventilated liquid-cooled energy storage confluence device.

[0023] Beneficial effects of the embodiments of the present utility model:

[0024] In the embodiment of the present invention, through the cooperation of the temperature detection module, the BMS control module and the heat exchange device of the temperature adjustment module, not only can the actual temperature changes in the electrical compartment of the energy storage combiner box be monitored in real time, but also, when the monitored actual temperature exceeds the set temperature range, the BMS control module can control the start-up of the heat exchange device and timely adjust the temperature of the electrical compartment in the energy storage combiner box, effectively avoiding the problem of electrical components being at too high or too low a temperature and affecting electrical performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 This is a three-dimensional diagram of a ventilated liquid-cooled energy storage confluence device provided by an embodiment of the present utility model;

[0027] Figure 2 This is an exploded view of a ventilated liquid-cooled energy storage confluence device provided by an embodiment of the present utility model;

[0028] Figure 3 This is a schematic diagram of a ventilated liquid-cooled energy storage confluence device provided by an embodiment of the present utility model;

[0029] Figure 4 This is a first flow chart of a ventilated liquid-cooled energy storage confluence device provided by an embodiment of the present utility model;

[0030] Figure 5 This is a second flow chart of a ventilated liquid-cooled energy storage confluence device provided by an embodiment of the present utility model;

[0031] Icons: 1-temperature detection module, 1a-first temperature detection component, 1b-second temperature detection component, 2-heat exchange device, 2a-first fan component, 2b-second fan component, 21-axial flow fan, 22-heat exchange host, 221-heat exchange through hole, 222-heat exchange element, 223-water collection base, 224-base plate, 225-fan outlet, 226-water collection chamber, 227-guide part, 228-guide hole, 229-drainage port, 231-liquid injection port, 232-liquid outlet port, 233-first liquid infusion pipe, 234-second liquid infusion pipe, 3-BMS control module, 4-UPS uninterruptible power supply, 5-bus, 6-onboard relay, 61-first electrical control unit, 62-second electrical control unit. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. In the present invention, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device.

[0033] Please refer to the specific Figure 3 As shown, the utility model provides a ventilation liquid-cooled energy storage confluence device, comprising:

[0034] Energy storage combiner box, equipped with electrical compartment;

[0035] Temperature detection module 1, installed in the electrical compartment of the energy storage combiner box;

[0036] The temperature adjustment module has a liquid cooling body, a delivery pipe and a heat exchange device 2. The liquid cooling body is connected to the heat exchange device 2 through the delivery pipe. The heat exchange device 2 is installed in the electrical compartment.

[0037] The BMS control module 3, the temperature detection module 1, the liquid cooling body and the heat exchange device 2 are all electrically connected to the BMS control module 3;

[0038] The BMS control module 3 can start the heat exchange device 2 according to the temperature signal monitored by the temperature detection module 1, so that the heat exchange medium supplied to the heat exchange device 2 by the liquid cooling body can exchange heat with the gas in the electrical compartment.

[0039] In this embodiment, the energy storage combiner box further comprises a battery compartment and a thermal management compartment. The electrical compartment is located to one side of the battery compartment, and multiple battery clusters are mounted and fixed in the battery compartment. These battery clusters are connected in series and parallel to provide sufficient power. The liquid cooling element of the temperature regulation module is installed in the thermal management compartment of the energy storage combiner box. The thermal management compartment is located to one side of the battery compartment. During charging and discharging, the multiple battery clusters in the battery compartment generate a large amount of heat, which is released into the battery compartment. During this process, the liquid cooling element can reduce the temperature of the battery compartment and the multiple battery clusters.

[0040] For example, the liquid cooling body delivers low-temperature heat exchange medium to the liquid cooling plate on one side of the battery pack of multiple battery clusters. The heat exchange medium will be able to absorb a large amount of heat released by the multiple battery clusters and the heat in the battery compartment, thereby achieving the purpose of dissipating heat from the battery pack of the battery cluster.

[0041] It can be understood that when the temperature of the external environment of the energy storage junction box is -10℃ or below, the battery compartment will be in a low temperature state. The liquid cooling body can also transport high-temperature heat exchange medium to the liquid cooling plate on one side of the battery pack of multiple battery clusters. The heat exchange medium will be able to release heat to the battery compartment, so that the temperature around the battery packs of multiple battery clusters is raised to the optimal temperature range.

[0042] For example, please refer to Figure 3 、 Figure 4 and Figure 5 As shown, when the temperature of the external environment of the energy storage combiner box is higher than 40°C, and the electrical components in the electrical compartment of the energy storage combiner box (such as UPS uninterruptible power supply 4, multiple buses 5 for transferring power lines) will also generate a lot of heat and release it into the electrical compartment in the operating state, which will also cause the temperature of the electrical compartment to rise to above 60°C. At this time, the temperature detection module 1 will monitor the temperature of the battery compartment in real time and generate a temperature signal to transmit to the BMS control module 3. The BMS control module 3 receives and analyzes the temperature signal, and then compares the actual temperature value of the temperature signal with the reference temperature value set by the BMS control module 3.

[0043] If the actual temperature value of the temperature signal is higher than the reference temperature value set by the BMS control module 3, the BMS control module 3 transmits the control instruction to the heat exchange device 2 of the temperature regulating module. After receiving the control instruction, the heat exchange device 2 starts to form a flowing gas in the air around the heat exchange device 2. Since the heat exchange medium of the liquid-cooled body is supplied to the heat exchange device 2 at the same time as the liquid cooling plate, the heat exchange medium flowing through the heat exchange device 2 will absorb the heat of the air around the heat exchange device 2, thereby reducing the temperature around the heat exchange device 2. The cold air around the heat exchange device 2 forms cold wind flowing toward the electrical compartment, thereby cooling the electrical components in the electrical compartment of the energy storage junction box.

[0044] For example, please refer to Figure 3 、 Figure 4 and Figure 5 As shown, when the temperature of the energy storage combiner box's external environment is -10°C or below, long-term storage can easily cause the temperature of the electrical compartment in the energy storage combiner box to equal the temperature of the external environment. Alternatively, during the commissioning phase, the energy storage combiner box will be opened, allowing the interior of the energy storage combiner box to communicate with the outside of the energy storage combiner box. At this time, the temperature detection module 1 will monitor the temperature of the battery compartment in real time and generate a temperature signal that is transmitted to the BMS control module 3. The BMS control module 3 receives and analyzes the temperature signal and then compares the actual temperature value of the temperature signal with the reference temperature value set by the BMS control module 3.

[0045] If the actual temperature value of the temperature signal is lower than the reference temperature value set by the BMS control module 3, the BMS control module 3 transmits the control instruction to the heat exchange device 2 of the temperature regulating module. After receiving the control instruction, the heat exchange device 2 starts to form a flowing gas in the air around the heat exchange device 2. Since the heat exchange medium of the liquid-cooled body is supplied to the heat exchange device 2 at the same time as the liquid cooling plate, a large amount of heat carried by the heat exchange medium flowing through the heat exchange device 2 is released to the air around the heat exchange device 2, thereby increasing the temperature around the heat exchange device 2. The hot air around the heat exchange device 2 forms hot air flowing toward the electrical compartment, thereby heating the electrical components in the electrical compartment of the energy storage junction box.

[0046] In this way, through the cooperation of the temperature detection module 1, the temperature adjustment module and the BMS control module 3, the temperature of the environment in which the electrical components in the electrical compartment are located can be effectively adjusted, so that the electrical components can always operate within the optimal temperature range, thereby ensuring that the electrical components maintain optimal performance.

[0047] In some embodiments, please refer to Figure 3 As shown, the temperature detection module 1 is provided in the UPS uninterruptible power supply 4. That is, the temperature detection module 1 is fixedly mounted on the UPS uninterruptible power supply 4, so that the temperature detection module 1 can more accurately and timely monitor the temperature changes of the UPS uninterruptible power supply 4. If the UPS uninterruptible power supply 4 is located within the coverage area of ​​the air outlet of the heat exchange device 2, then the temperature around the UPS uninterruptible power supply 4 is not within the optimal temperature range. The hot air / cold air provided by the heat exchange device 2 can act on the UPS uninterruptible power supply 4 in a timely manner, thereby achieving the purpose of more timely and targeted adjustment of the temperature of the UPS uninterruptible power supply 4 and its surrounding areas.

[0048] In some embodiments, please refer to Figure 3 As shown, the temperature detection module 1 is provided on the bus 5, that is, the temperature detection module 1 is installed and fixed to the bus 5, so that the temperature detection module 1 can more accurately and timely monitor the temperature changes of the bus 5 during the conductive process. The bus 5 is located within the coverage range of the air outlet end of the heat exchange device 2. When the temperature around the bus 5 exceeds the optimal temperature range, that is, when the heat generated by the bus 5 is too much, the cold air provided by the heat exchange device 2 can be supplied and acted on the bus 5, which can not only absorb the heat generated by the bus 5 in a timely manner, but also promptly remove the hot air around the bus 5, thereby achieving the purpose of cooling the bus 5 more promptly and quickly.

[0049] For example, please refer to Figure 1 and Figure 2As shown, the above-mentioned heat exchange device 2 includes an axial flow fan 21 and a heat exchange main unit 22. The heat exchange main unit 22 includes a heat exchange shell and a heat exchange element 222. The heat exchange shell is provided with a heat exchange chamber and a heat exchange through hole 221 connected to the heat exchange chamber. The heat exchange element 222 is arranged in the heat exchange chamber. The heat exchange shell is provided with a fan port 225 connected to the heat exchange chamber. The axial flow fan 21 is fixedly installed at the fan port 225. The axial flow fan 21 is connected to the heat exchange chamber. The axial flow fan 21 is electrically connected to the BMS control module 3. The heat exchange element 222 is connected to the liquid cooling body through a delivery pipe.

[0050] The heat exchange element 222 is a cooling coil. The cooling coil has multiple heat exchange channels, which extend in a reciprocating or spiral manner. This increases the duration of heat exchange between the heat exchange medium and the air along the heat exchange channels and significantly increases the contact area between the heat exchange channels and the air. This increases the heat exchange area between the heat exchange medium and the air, effectively absorbing heat from the air or rapidly releasing heat carried by the heat exchange medium into the air. This significantly improves heat exchange efficiency and facilitates timely adjustment of the temperature of the UPS 4, bus 5, and electrical compartment.

[0051] When the axial flow fan 21 is started after receiving the control instruction from the BMS control module 3, the fan blades of the axial flow fan 21 rotate at a high speed, so that a negative pressure is formed inside the heat exchange chamber, and the air outside the heat exchange chamber will enter the heat exchange chamber from the heat exchange through hole 221. At this time, the liquid cooling body supplies the heat exchange medium to the heat exchange element 222 of the heat exchange device 2 through the delivery pipe, and the air entering the heat exchange chamber will exchange heat with the heat exchange medium flowing through the heat exchange element 222, that is, the heat in the air is absorbed by the heat exchange medium to form cold air. Finally, under the action of the axial flow fan 21, cold air is formed and flows from the air outlet end of the heat exchange device 2 toward the UPS uninterruptible power supply 4 and / or bus 5. Here, the air outlet end of the heat exchange device 2 is the air outlet end of the axial flow fan 21.

[0052] For example, in order to realize the purpose of electrical connection of the axial flow fan 21 of the heat exchange device 2, please refer to Figure 3 As shown, the ventilated liquid-cooled energy storage converging device also includes a relay switch component, a relatively mature electrical control device in the mechanical field. The relay switch component includes a coil element KA, a contact switch KM, and an onboard relay 6 disposed within the BMS control module 3. The onboard relay 6 is electrically connected to the BMS control module 3. The chip within the BMS control module 3 is configured with a control program that can activate or deactivate the onboard relay 6. The coil element KA, the contact switch KM, and the axial flow fan 21 of the heat exchange device 2 form a control circuit. The BMS control module 3 can control the onboard relay 6 to activate, causing the coil element KA to activate the contact switch KM, thus forming a closed circuit.

[0053] When the onboard relay 6 receives the control instruction from the BMS control module 3, the onboard relay 6 causes the coil element KA to be energized and generates a magnetic field, which will attract the contact switch KM of the relay switch 6 to close. At this time, the coil element KA, the contact switch KM and the axial flow fan 21 of the heat exchange device 2 form a closed loop, so that the axial flow fan 21 will be energized and started.

[0054] It should also be noted that the present invention is not limited to the above-mentioned real-time monitoring and temperature adjustment of the UPS uninterruptible power supply 4 and the above-mentioned real-time monitoring and temperature adjustment of the bus 5. Figures 3 to 5 As shown, the UPS uninterruptible power supply 4 and the busbar 5 can also be monitored and the temperature adjusted synchronously.

[0055] For example, the temperature detection module 1, relay switch component 6 and heat exchange device 2 of the temperature regulation module of the ventilation liquid-cooled energy storage bus device are all configured in two, and the temperature detection module 1 used to monitor the UPS uninterruptible power supply 4 is defined as the first temperature detection component 1a, and the temperature detection module 1 used to monitor the bus 5 is the second temperature detection component 1b; the heat exchange device 2 used to be set corresponding to the UPS uninterruptible power supply 4 is the first fan component 2a, and the heat exchange device 2 used to be set corresponding to the bus 5 is the second fan component 2b; the on-board relay 6 used to control the on-off of the control circuit where the first fan component 2a is located is the first electrical component 61, and the coil element KA corresponding to the first electrical component 61 is the first coil KA1, and the contact switch KM corresponding to the first electrical component 61 is the first contact KM1; the on-board relay 6 used to control the on-off of the control circuit where the second fan component 2b is located is the second electrical component 62, and the coil element KA corresponding to the second electrical component 62 is the second coil KA2, and the contact switch KM corresponding to the second electrical component 62 is the second contact KM2.

[0056] Furthermore, the first branch formed by the first coil KA1, the first contact KM1 and the axial flow fan 21 of the first fan component 2a, and the second branch formed by the second coil KA2, the second contact KM2 and the axial flow fan 21 of the second fan component 2b, the first branch and the second branch are connected in parallel, and the first electrical control component 61 and the second electrical control component 62 are both electrically connected to the BMS control module 3.

[0057] When the BMS control module 3 compares the actual temperature value monitored by the first temperature detection component 1a to be higher than the upper temperature limit, the BMS control module 3 sends a control instruction to the first electrical component 61, and the first coil KA1 is energized and generates a magnetic field, which will attract the first contact KM1 to close, and the axial flow fan 21 of the first fan component 2a will be energized and started, achieving the purpose of cooling the UPS uninterruptible power supply 4. When the BMS control module 3 compares the actual temperature value monitored by the first temperature detection component 1a to be lower than the lower temperature limit, the BMS control module 3 sends a control instruction to the first electrical component 61, and the first coil KA1 is energized and generates a magnetic field, which will attract the first contact KM1 to close, and the axial flow fan 21 of the first fan component 2a will be energized and started, achieving the purpose of heating the UPS uninterruptible power supply 4.

[0058] When the BMS control module 3 compares the actual temperature value monitored by the second temperature detection component 1b and finds that it is higher than the reference temperature value, the BMS control module 3 will also simultaneously send a control instruction to the second electric component 62, then the second coil KA2 will be energized and generate a magnetic field, which will attract the second contact KM2 to close, and the axial flow fan 21 of the second fan component 2b will be energized and started, thereby achieving the purpose of synchronously cooling the bus 5.

[0059] In some embodiments, please refer to Figure 1 and Figure 2 As shown, the heat exchange shell further includes a water collecting base 223 and a base plate 224. The base plate 224 includes two side wall panels and a first plate and a second plate arranged opposite each other. The first plate, the second plate, and the two side wall panels can all be distributed along the circumference of the heat exchange main unit 22. The first plate, the second plate, and the two side wall panels in the base plate 224 are all arranged together with the water collecting base 223 to form a heat exchange chamber of the heat exchange main unit 22. The base plate 224 is fixedly connected to the water collecting base 223. The fixed connection here can be welded, bolted, or clamped. It is understandable that the first plate, the second plate, and the two side wall panels can be integrally formed.

[0060] For example, please refer to Figure 1 and Figure 2As shown, the axial fan 21 is bolted to the first plate of the base plate 224, and the first plate is provided with the above-mentioned fan opening 225 connected to the axial fan 21. The heat exchange through-holes 221 are provided on the base plate 224, and the number of heat exchange through-holes 221 is configured to be multiple, and the multiple heat exchange through-holes 221 are evenly distributed. It is understandable that both side wall plates can be provided with multiple heat exchange through-holes 221, and multiple heat exchange through-holes 221 can be provided on the second plate. It is also possible to provide multiple heat exchange through-holes 221 on the first plate, and the multiple heat exchange through-holes 221 are distributed around the fan opening 225. Alternatively, any three of the first plate, the second plate, and the two side wall plates can be provided with multiple heat exchange through-holes 221.

[0061] As the heat exchange medium flowing through the heat exchange element 222 absorbs a large amount of heat from the air, it causes water vapor in the air to condense into small droplets that adhere to the outer surface of the heat exchange element 222. These droplets eventually aggregate into large droplets that drip onto the water collection base 223. If the heat exchange element 222 is used for an extended period, these large droplets will accumulate and form a water layer. This water can easily seep out of the heat exchange main unit 22 through the joint between the base plate 224 and the water collection base 223, potentially putting the ventilated liquid-cooled energy storage confluence device at risk of short-circuiting.

[0062] To address the above-mentioned issues, the inventors have disclosed a feasible solution. A water collection chamber 226 is provided on the water collection base 223 for collecting condensed water, allowing large droplets of condensed liquid to drip into the water collection chamber 226. Over time, a water layer forms at the inner bottom of the water collection chamber 226. This prevents the water in the water layer from leaking out of the joint between the base plate 224 and the water collection base 223, thereby eliminating the risk of short circuits in the ventilated liquid-cooled energy storage confluence device and improving its stability.

[0063] In some embodiments, please refer to Figure 1 As shown, a drainage port 229 is provided on the water collecting base 223, and the direction from the water collecting base 223 toward the heat exchange element 222 is defined as the height direction of the heat exchange main unit 22. The drainage port 229 is provided below the water collecting base 223 in the height direction of the heat exchange main unit 22. The drainage port 229 is connected to the water collecting chamber 226, so that the accumulated water layer at the inner bottom of the water collecting chamber 226 is completely discharged, which not only avoids the problem of accumulation of the accumulated water layer due to long-term storage, but also avoids the risk of overflowing the water collecting base 223 due to excessive accumulation. In addition, it is also convenient for the discharge of accumulated water.

[0064] In some embodiments, please refer to Figure 1As shown, the water collection base 223 is provided with a guide portion 227, which is located between the heat exchange element 222 and the water collection base 223. The guide portion 227 is arranged along the height direction and is inclined. That is, the side of the water collection chamber 226 perpendicular to the height direction of the heat exchange main unit 22 is defined as the reference plane, and the guide portion 227 is extended and inclined with respect to the reference plane. The guide portion 227 is provided with a flow guide hole 228. The number of the flow guide hole 228 can be configured as one or more, and the flow guide hole 228 can be arranged on the side of the flow guide portion 227 close to the reference plane. Alternatively, the flow guide holes 228 can be evenly distributed on the flow guide portion 227, so that large liquid droplets condensed on the heat exchange element 222 in the height direction of the heat exchange main unit 22 drip onto the guide portion 227. After the large liquid droplets converge, they flow through the flow guide hole 228 and into the water collection chamber 226.

[0065] In some embodiments, please refer to Figure 1 and Figure 2 As shown, the water collection base 223 is provided with a liquid injection port 231 and a liquid outlet port 232, both of which are located on a side wall of the water collection base 223 near the reference surface. The heat exchange element 222 is provided with a liquid inlet and a liquid outlet. The delivery pipeline includes a first liquid infusion tube 233 and a second liquid infusion tube 234 in the water collection chamber 226. One end of the first liquid infusion tube 233 is connected to the liquid injection port 231, and the other end of the first liquid infusion tube 233 is connected to the liquid inlet. One end of the second liquid infusion tube 234 is connected to the liquid outlet port 232, and the other end of the second liquid infusion tube 234 is connected to the liquid outlet. In this way, the external pipeline connecting the liquid cooling body of the temperature control module and the heat exchange element 222 only needs to be connected to the liquid injection port 231 and the liquid outlet port 232 on the water collection base 223, which is convenient and quick to assemble and facilitates subsequent maintenance.

[0066] Based on the structure and connection relationship of the above-mentioned ventilated liquid-cooled energy storage confluence device, the inventors also disclosed an energy storage system, which includes the above-mentioned ventilated liquid-cooled energy storage confluence device.

[0067] The above is a detailed introduction to the embodiments of the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, based on the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A ventilated liquid-cooled energy storage confluence device, characterized in that: include: Energy storage combiner box, equipped with electrical compartment; A temperature detection module (1) is installed in the electrical compartment; A temperature regulating module comprises a liquid cooling body, a delivery pipe and a heat exchange device (2), wherein the liquid cooling body is connected to the heat exchange device (2) via the delivery pipe, and the heat exchange device (2) is installed in the electrical compartment; A BMS control module (3), the temperature detection module (1), the liquid cooling body and the heat exchange device (2) are all electrically connected to the BMS control module (3); The BMS control module (3) can start the heat exchange device (2) according to the temperature signal monitored by the temperature detection module (1), so that the heat exchange medium supplied to the heat exchange device (2) by the liquid cooling body can exchange heat with the gas in the electrical compartment.

2. The ventilation liquid-cooled energy storage confluence device according to claim 1, characterized in that: The heat exchange device (2) includes an axial flow fan (21) and a heat exchange main unit (22), the heat exchange main unit (22) includes a heat exchange shell and a heat exchange element (222), the heat exchange shell is provided with a heat exchange chamber and a heat exchange through hole (221) connected to the heat exchange chamber, the heat exchange element (222) is arranged in the heat exchange chamber, the heat exchange shell is provided with a fan port (225) connected to the heat exchange chamber, the axial flow fan (21) is fixedly installed on the fan port (225), the axial flow fan (21) is electrically connected to the BMS control module (3), and the heat exchange element (222) is connected to the liquid cooling body through the delivery pipeline.

3. The ventilation liquid-cooled energy storage confluence device according to claim 2, characterized in that: The heat exchange shell further includes a water collecting base (223) and a machine base plate (224); the water collecting base (223) is provided with a water collecting chamber (226) for collecting condensed water; the machine base plate (224) is fixedly connected to the water collecting base (223); and the machine base plate (224) and the water collecting base (223) are arranged to form the heat exchange chamber; the heat exchange through hole (221) is provided on the machine base plate (224); and the axial flow fan (21) is bolted to the machine base plate (224).

4. The ventilation liquid-cooled energy storage confluence device according to claim 3, characterized in that: The direction from the water collecting base (223) toward the heat exchange element (222) is defined as the height direction of the heat exchange main unit (22); a flow guide portion (227) is provided on the water collecting base (223); the flow guide portion (227) is located between the heat exchange element (222) and the water collecting base (223); the flow guide portion (227) is provided along the height direction and is inclined; and a flow guide hole (228) is provided on the flow guide portion (227).

5. The ventilation liquid-cooled energy storage confluence device according to claim 3 or 4, characterized in that: The water collecting base (223) is provided with a liquid injection port (231) and a liquid outlet port (232); the heat exchange element (222) is provided with a liquid inlet and a liquid outlet; the delivery pipeline comprises a first liquid infusion pipe (233) and a second liquid infusion pipe (234) of the water collecting chamber (226); one end of the first liquid infusion pipe (233) is connected to the liquid injection port (231), the other end of the first liquid infusion pipe (233) is connected to the liquid inlet, one end of the second liquid infusion pipe (234) is connected to the liquid outlet port (232), and the other end of the second liquid infusion pipe (234) is connected to the liquid outlet.

6. The ventilation liquid-cooled energy storage confluence device according to claim 2, characterized in that: The device further comprises a relay switch component, the relay switch component comprising a coil element KA, a contact switch KM, and an onboard relay (6) arranged inside the BMS control module (3); the onboard relay (6) is electrically connected to the coil element KA; the coil element KA, the contact switch KM, and the axial flow fan (21) of the heat exchange device (2) form a control circuit; the BMS control module (3) can control the onboard relay (6) to be attracted, so that the coil element KA attracts the contact switch KM, and the control circuit forms a closed circuit.

7. The ventilation liquid-cooled energy storage confluence device according to claim 2, characterized in that: The heat exchange element (222) is a cooling coil.

8. The ventilation liquid-cooled energy storage confluence device according to claim 1, 2 or 6, characterized in that: It also includes a UPS uninterruptible power supply (4), which is arranged in the electrical compartment of the energy storage junction box, and the temperature detection module (1) is used to monitor the temperature of the UPS uninterruptible power supply (4), and the UPS uninterruptible power supply (4) is located within the coverage range of the air outlet end of the heat exchange device (2).

9. The ventilation liquid-cooled energy storage confluence device according to claim 1, 2 or 6, characterized in that: It also includes a busbar (5) for switching power lines, the busbar (5) being arranged in the electrical compartment of the energy storage combiner box, the temperature detection module (1) being used to monitor the temperature of the busbar (5), and the busbar (5) being located within the coverage range of the air outlet end of the heat exchange device (2).

10. The ventilation liquid-cooled energy storage confluence device according to claim 1, 2 or 6, characterized in that: It also includes a UPS uninterruptible power supply (4) and a busbar (5) for switching power lines, and the temperature detection module (1) and the heat exchange device (2) are both configured in pairs, wherein one temperature detection module (1) is used to monitor the temperature of the UPS uninterruptible power supply (4), and the other temperature detection module (1) is used to monitor the temperature of the busbar (5); The heat exchange device (2) corresponding to the UPS uninterruptible power supply (4) is defined as a first fan component (2a), and the heat exchange device (2) corresponding to the bus (5) is defined as a second fan component (2b). The UPS uninterruptible power supply (4) is located within the coverage range of the air outlet end of the first fan component (2a), and the bus (5) is located within the coverage range of the air outlet end of the second fan component (2b).

11. An energy storage system, characterized in that: It comprises the ventilation liquid-cooled energy storage confluence device according to any one of claims 1 to 10.

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