Ventilated liquid-cooled energy storage combiner device and energy storage system

Abstract

The present application provides a ventilated liquid-cooled energy storage combiner device and an energy storage system. The ventilated liquid-cooled energy storage combiner device comprises an energy storage combiner box, a temperature measurement module, a temperature regulation module, and a BMS control module. The BMS control module can start a heat exchange device on the basis of a temperature signal detected by the temperature measurement module, so that a heat exchange medium supplied by a liquid cooling unit to the heat exchange device can exchange heat with gas in an electrical compartment.

Description

Ventilated liquid-cooled energy storage busbar device and energy storage system

[0001] The present application claims priority to the Chinese patent application No. 202421991403.2, filed on August 15, 2024, to the Chinese Patent Office, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of energy storage, in particular to a ventilated liquid-cooled energy storage busbar device and energy storage system. BACKGROUND

[0003] In the related art, the energy storage busbar device usually has a battery compartment, an electrical compartment and a thermal management compartment, wherein the electrical compartment is used to place a busbar cabinet, the busbar cabinet functions to converge, distribute and control the electrical energy of the battery cluster in the energy storage busbar device and protect the electrical energy, and the busbar cabinet is installed with electrical elements such as switches, UPS uninterruptible power supplies and busbars. SUMMARY

[0004] When the temperature of the external environment of the energy storage busbar device of the energy storage busbar cabinet is higher than 40℃, if the energy storage busbar device is in a charging and discharging state, the heat generated by the electrical elements in the busbar cabinet will cause the temperature of the electrical compartment in the energy storage busbar cabinet to rise to above 60℃, and the long-term operation of the electrical elements at a temperature of 60℃ will shorten the service life of the electrical elements, reduce the electrical performance of the electrical elements, and further increase the safety hazards of the energy storage busbar device.

[0005] When the temperature of the external environment of the energy storage busbar device of the energy storage busbar cabinet is-10℃ or below, long-term placement will easily cause the temperature of the electrical compartment in the energy storage busbar cabinet to be equal to the temperature of the external environment of the energy storage busbar cabinet, or the energy storage busbar device is in a debugging stage and will be opened, so that the inside of the energy storage busbar cabinet is in communication with the outside of the energy storage busbar cabinet, and if the energy storage busbar device is in a charging and discharging state, the electrical performance of the electrical elements in the busbar cabinet, especially the UPS uninterruptible power supply, is poor or even unable to operate under low temperature conditions, thereby causing the entire energy storage busbar device to be unable to operate normally.

[0006] The present application provides a ventilated liquid-cooled energy storage busbar device and energy storage system, which can regulate the temperature of the electrical compartment in the energy storage busbar cabinet, effectively avoiding the influence of the electrical performance of the electrical elements caused by the excessively high or low temperature.

[0007] In a first aspect, an embodiment of the present application provides a ventilated liquid-cooled energy storage busbar device, comprising:

[0008] an energy storage busbar cabinet having an electrical compartment;

[0009] a temperature detection module installed in the electrical compartment;

[0010] A temperature adjusting module, having a liquid cooling body, a conveying pipeline and a heat exchange device, the liquid cooling body is communicated with the heat exchange device through the conveying pipeline, and the heat exchange device is installed in the electrical compartment;

[0011] A BMS control module, the temperature detecting module, the liquid cooling body and the heat exchange device are electrically connected with the BMS control module;

[0012] The BMS control module can start the heat exchange device according to the temperature signal monitored by the temperature detecting module, so that the heat exchange between the heat exchange medium supplied by the liquid cooling body to the heat exchange device and the gas in the electrical compartment is realized.

[0013] In the second aspect, the embodiments of the present application provide a power storage system, comprising the ventilation liquid cooling type power storage busbar device. Advantages

[0014] In the embodiments of the present application, the ventilation liquid cooling type power storage busbar device can not only monitor the change of the actual temperature in the electrical compartment of the power storage busbar device in real time through the cooperation of the temperature detecting module, the BMS control module and the heat exchange device of the temperature adjusting module, but also can control the heat exchange device to start and adjust the temperature of the electrical compartment in the power storage busbar device in time when the monitored actual temperature exceeds the set temperature range, so as to effectively avoid the influence of the electrical performance caused by the high or low temperature of the electrical components. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a perspective view of the ventilation liquid cooling type power storage busbar device provided by the embodiments of the present application;

[0016] Fig. 2 is an exploded view of the ventilation liquid cooling type power storage busbar device provided by the embodiments of the present application;

[0017] Fig. 3 is a schematic diagram of the ventilation liquid cooling type power storage busbar device provided by the embodiments of the present application;

[0018] Fig. 4 is a first flowchart of the ventilation liquid cooling type power storage busbar device provided by the embodiments of the present application;

[0019] Fig. 5 is a second flowchart of the ventilation liquid cooling type power storage busbar device provided by the embodiments of the present application.

[0020] Explanation of reference signs:

[0021] 1, temperature detection module; 1a, first temperature detection element; 1b, second temperature detection element; 2, heat exchange device; 2a, first fan element; 2b, second fan element; 21, axial flow fan; 22, heat exchange host; 221, heat exchange through hole; 222, heat exchange element; 223, water collecting base; 224, machine base plate element; 225, fan through port; 226, water collecting chamber; 227, flow guide part; 228, flow guide through hole; 229, drainage port; 231, liquid injection port; 232, liquid outlet port; 233, first liquid conveying pipe; 234, second liquid conveying pipe; 3, BMS control module; 4, UPS uninterrupted power supply; 5, bus bar; 6, on-board relay; 61, first electric control; 62, second electric control. Embodiments of the application

[0022] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, and the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, and the horizontal height of the first feature is less than that of the second feature.

[0024] In the description of the present embodiment, the terms "up", "down", "left", "right", "front", "back" and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, which is for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used to distinguish the description and have no special meaning.

[0025] Specifically, as shown in Figure 3, the present application provides a ventilation liquid cooling type energy storage bus device, comprising:

[0026] The energy storage bus box is provided with an electrical bin;

[0027] The temperature detection module 1 is installed in the electrical compartment of the energy storage busbar box.

[0028] The temperature adjustment module has a liquid cooling body, a conveying pipeline and a heat exchange device 2. The liquid cooling body is connected with the heat exchange device 2 through the conveying pipeline. The heat exchange device 2 is installed in the electrical compartment.

[0029] The BMS (Battery Management System) control module 3 is electrically connected with the temperature detection module 1, the liquid cooling body and the heat exchange device 2.

[0030] 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 by the liquid cooling body exchanges heat with the gas in the electrical compartment.

[0031] The energy storage busbar box further has a battery compartment and a thermal management compartment. The electrical compartment is located on one side of the battery compartment. A plurality of battery clusters are installed and fixed in the battery compartment. The plurality of battery clusters are connected in series and in parallel to supply sufficient power. The liquid cooling body of the temperature adjustment module is installed in the thermal management compartment of the energy storage busbar box. The thermal management compartment is located on one side of the battery compartment. Therefore, the plurality of battery clusters in the battery compartment will generate a large amount of heat and release it into the battery compartment in the charging and discharging state. At this time, the liquid cooling body can reduce the temperature of the battery compartment and the plurality of battery clusters.

[0032] For example, the liquid cooling body can transport low-temperature heat exchange medium to the liquid cooling plate on one side of the battery pack of the plurality of battery clusters. The heat exchange medium can absorb a large amount of heat released by the plurality of battery clusters and the heat in the battery compartment, so as to achieve the purpose of heat dissipation of the battery pack of the battery cluster.

[0033] It can be understood that when the temperature of the external environment of the energy storage busbar 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 the plurality of battery clusters. The heat exchange medium can release heat to the battery compartment, so that the temperature around the battery pack of the plurality of battery clusters is raised to the optimal temperature range.

[0034] For example, as shown in FIGS. 3, 4 and 5, when the temperature of the external environment of the energy storage busbar is higher than 40°C, and the electrical elements (such as the UPS (Uninterruptible Power Supply) 4, and the plurality of busbars 5 for switching power lines) in the electrical compartment of the energy storage busbar also generate a large amount 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 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 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.

[0035] 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 will transmit a control instruction to the heat exchange device 2 of the temperature regulation module. After receiving the control instruction, the heat exchange device 2 starts to form a flowing gas around the heat exchange device 2. Since the heat exchange medium of the liquid cooling body is supplied to the liquid cooling plate and also to the heat exchange device 2, the heat exchange medium flowing through the heat exchange device 2 will absorb the heat of the air around the heat exchange device 2, reducing the temperature of the air around the heat exchange device 2. Then, the cold air around the heat exchange device 2 forms a cold wind flowing towards the electrical compartment, achieving the cooling of the electrical elements in the electrical compartment of the energy storage busbar.

[0036] For example, as shown in FIGS. 3, 4 and 5, when the temperature of the external environment of the energy storage busbar is higher than 40°C, and the electrical elements (such as the UPS (Uninterruptible Power Supply) 4, and the plurality of busbars 5 for switching power lines) in the electrical compartment of the energy storage busbar also generate a large amount 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 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 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.

[0037] 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 will transmit a control instruction to the heat exchange device 2 of the temperature regulation module. After receiving the control instruction, the heat exchange device 2 starts to form a flowing gas around the heat exchange device 2. Since the heat exchange medium of the liquid cooling body is supplied to the liquid cooling plate and also to the heat exchange device 2, the heat exchange medium flowing through the heat exchange device 2 will absorb the heat of the air around the heat exchange device 2, reducing the temperature of the air around the heat exchange device 2. Then, the cold air around the heat exchange device 2 forms a cold wind flowing towards the electrical compartment, achieving the cooling of the electrical elements in the electrical compartment of the energy storage busbar.

[0038] Thus, by 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 are located in the electrical compartment 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.

[0039] In some embodiments, specifically as shown in FIG. 3, the temperature detection module 1 is arranged on the UPS uninterruptible power supply 4, that is, the temperature detection module 1 is fixedly installed on the UPS uninterruptible power supply 4, so that the temperature detection module 1 can more accurately and timely monitor the temperature change of the UPS uninterruptible power supply 4. The UPS uninterruptible power supply 4 is located within the coverage range of the air outlet end of the heat exchange device 2, so that the temperature of the surrounding side of the UPS uninterruptible power supply 4 is not within the optimal temperature range, and the hot / 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 side.

[0040] In some embodiments, specifically as shown in FIG. 3, the temperature detection module 1 is arranged on the busbar 5, that is, the temperature detection module 1 is fixedly installed on the busbar 5, so that the temperature detection module 1 can more accurately and timely monitor the temperature change of the busbar 5 during conduction. The busbar 5 is located within the coverage range of the air outlet end of the heat exchange device 2, so that when the temperature of the surrounding side of the busbar 5 exceeds the optimal temperature range, that is, when the heat generated by the busbar 5 is excessive, the cold air provided by the heat exchange device 2 can be supplied and act on the busbar 5, not only absorbing the heat generated by the busbar 5 in a timely manner, but also removing the hot air on the surrounding side of the busbar 5 in a timely manner, thereby achieving the purpose of more timely and rapid cooling of the busbar 5.

[0041] For example, as shown in FIGS. 1 and 2, the heat exchange device 2 includes an axial flow fan 21 and a heat exchange host 22, the heat exchange host 22 includes a heat exchange shell and a heat exchange element 222, the heat exchange shell is provided with a heat exchange cavity and a heat exchange through hole 221 communicating with the heat exchange cavity, the heat exchange element 222 is arranged in the heat exchange cavity, the heat exchange shell is provided with a fan through port 225 communicating with the heat exchange cavity, the axial flow fan 21 is fixedly installed on the fan through port 225, the axial flow fan 21 communicates with the heat exchange cavity, 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 machine body through a conveying pipeline.

[0042] Wherein, the heat exchange element 222 here is a cooling coil. The cooling coil has a plurality of heat exchange flow channels extending in a reciprocating and winding manner or in a spiral manner, so that the heat exchange time of the heat exchange medium along the heat exchange flow channels and the air is increased, and the contact area between the heat exchange flow channels and the air is greatly increased, that is, the heat exchange area between the heat exchange medium and the air is increased, so that the heat in the air can be effectively absorbed or the heat carried by the heat exchange medium can be quickly released to the air, greatly improving the heat exchange efficiency and being beneficial to timely adjusting the temperature of the UPS uninterruptible power supply 4, the bus bar 5 and the electrical bin.

[0043] When the axial flow fan 21 is started under the control instruction of 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 in the heat exchange chamber, and then the air outside the heat exchange chamber enters the heat exchange chamber through 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 conveying pipeline, so that the air entering the heat exchange chamber exchanges 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, and finally the cold air flows from the air outlet end of the heat exchange device 2 to the UPS uninterruptible power supply 4 and / or the bus bar 5 under the action of the axial flow fan 21. The air outlet end of the heat exchange device 2 here is the air outlet end of the axial flow fan 21.

[0044] Exemplarily, in order to achieve the purpose of electrically connecting the axial flow fan 21 of the heat exchange device 2, specifically, referring to FIG. 3, the ventilation liquid cooling type energy storage bus device further comprises a relay switch, which is a relatively mature electric control device in the mechanical field. The relay switch comprises a coil element KA, a contact switch KM, and a board-mounted relay 6 arranged in the BMS control module 3, and the board-mounted relay 6 is electrically connected with the BMS control module 3. The chip in the BMS control module 3 is configured with a control program to enable the board-mounted relay 6 to attract or break. The coil element KA, the contact switch KM and the axial flow fan 21 of the heat exchange device 2 form a control circuit, and the BMS control module 3 can control the board-mounted relay 6 to attract, so that the coil element KA attracts the contact switch KM to form a closed circuit.

[0045] When the board-mounted relay 6 receives the control instruction of the BMS control module 3, the board-mounted relay 6 causes the coil element KA to be electrified and generates a magnetic field to 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 is electrified and started.

[0046] It should also be noted that it is not limited to real-time monitoring and temperature regulation of the UPS uninterruptible power supply 4 and real-time monitoring and temperature regulation of the busbar 5. Please refer to Figs. 3-5 for details. Synchronous monitoring and temperature regulation of the UPS uninterruptible power supply 4 and the busbar 5 can also be provided.

[0047] For example, the temperature detection module 1, the relay switch 6 and the heat exchange device 2 of the temperature regulation module of the ventilation liquid-cooled energy storage busbar device are configured as two, the temperature detection module 1 for monitoring the UPS uninterruptible power supply 4 is defined as the first temperature detection element 1a, and the temperature detection module 1 for monitoring the busbar 5 is defined as the second temperature detection element 1b; the heat exchange device 2 corresponding to the UPS uninterruptible power supply 4 is defined as the first fan element 2a, and the heat exchange device 2 corresponding to the busbar 5 is defined as the second fan element 2b; the on-board relay 6 for controlling the on-off of the control circuit of the first fan element 2a is defined as the first electric control element 61, the coil element KA corresponding to the first electric control element 61 is defined as the first coil KA1, and the contact switch KM corresponding to the first electric control element 61 is defined as the first contact KM1; the on-board relay 6 for controlling the on-off of the control circuit of the second fan element 2b is defined as the second electric control element 62, the coil element KA corresponding to the second electric control element 62 is defined as the second coil KA2, and the contact switch KM corresponding to the second electric control element 62 is defined as the second contact KM2.

[0048] The first coil KA1, the first contact KM1 and the first fan element 2a form a first branch, the second coil KA2, the second contact KM2 and the second fan element 2b form a second branch, and the first branch and the second branch are connected in parallel, and the first electric control element 61 and the second electric control element 62 are electrically connected to the BMS control module 3.

[0049] When the actual temperature value monitored by the first temperature detection element 1a is higher than the upper limit temperature value compared by the BMS control module 3, the BMS control module 3 sends a control instruction to the first electric control element 61, the first coil KA1 is powered and generates a magnetic field, which attracts the first contact KM1 to close, and the axial fan 21 of the first fan element 2a is powered and started, achieving the purpose of cooling the UPS uninterruptible power supply 4. When the actual temperature value monitored by the first temperature detection element 1a is lower than the lower limit temperature value compared by the BMS control module 3, the BMS control module 3 sends a control instruction to the first electric control element 61, the first coil KA1 is powered and generates a magnetic field, which attracts the first contact KM1 to close, and the axial fan 21 of the first fan element 2a is powered and started, achieving the purpose of heating the UPS uninterruptible power supply 4.

[0050] When the BMS control module 3 compares the actual temperature value monitored by the second temperature detection element 1b to be higher than the reference temperature value, the BMS control module 3 will also send a control instruction to the second electric control 62 at the same time, and then the second coil KA2 is powered and generates a magnetic field, which will attract the second contact KM2 to close, so that the shaft fan 21 of the second fan element 2b will be powered and started, so as to achieve the purpose of synchronously cooling the bus bar 5.

[0051] In some embodiments, please refer to FIG. 1 and FIG. 2, the heat exchange shell further comprises a water collecting base 223 and a base plate 224, the base plate 224 comprises two side wall plates and oppositely arranged first and second plates, the first and second plates and the two side wall plates are distributed along the circumferential direction of the heat exchange main machine 22, the first and second plates and the two side wall plates in the base plate 224 are surrounded with the water collecting base 223 to form a heat exchange chamber of the heat exchange main machine 22, and the base plate 224 is fixedly connected with the water collecting base 223. The fixed connection can be welding connection, bolt connection or clamping connection. It can be understood that the first and second plates and the two side wall plates can be integrally formed.

[0052] For example, please refer to FIG. 1 and FIG. 2, the shaft fan 21 is bolted to the first plate of the base plate 224, and the first plate is provided with a fan opening 225 in communication with the shaft fan 21. The heat exchange holes 221 are arranged on the base plate 224, and the number of the heat exchange holes 221 is multiple, and the multiple heat exchange holes 221 are uniformly distributed. It can be understood that the two side wall plates can be provided with multiple heat exchange holes 221, or the second plate can be provided with multiple heat exchange holes 221, or the first plate can be provided with multiple heat exchange holes 221, and the multiple heat exchange holes 221 are distributed around the fan opening 225. Alternatively, any three of the first and second plates and the two side wall plates can be provided with multiple heat exchange holes 221.

[0053] When the heat exchange medium flowing through the heat exchange element 222 absorbs a large amount of heat in the air, the water vapor in the air will condense into small liquid beads and adhere to the outer surface of the heat exchange element 222, and finally will gather into large liquid beads and drop onto the water collecting base 223. If the heat exchange element 222 is used for a long time, a large amount of large liquid beads will form a water accumulation layer, and water will easily seep out of the heat exchange main machine 22 from the joint gap between the base plate 224 and the water collecting base 223, which will cause a risk of short circuit of the ventilation liquid cooling type energy storage bus bar device.

[0054] To this end, the inventor discloses a feasible way, the water collecting base 223 is provided with a water collecting chamber 226 for collecting condensed water, so that the large liquid beads condensed and gathered can drop into the water collecting chamber 226. During long-term collection, the inner bottom of the water collecting chamber 226 will form a water accumulation layer. In this way, the amount of water in the water accumulation layer that seeps out from the joint gap between the base plate 224 and the water collecting base 223 is reduced, the risk of short circuit of the ventilation liquid-cooled energy storage busbar device is solved, and the stability of the ventilation liquid-cooled energy storage busbar device is improved.

[0055] In some embodiments, as shown in FIG. 1, the water collecting base 223 is provided with a drainage port 229, the height direction of the heat exchange host 22 is defined from the water collecting base 223 to the heat exchange element 222, the drainage port 229 is arranged below the water collecting base 223 in the height direction of the heat exchange host 22, and the drainage port 229 is communicated with the water collecting chamber 226, so that the water accumulation layer on the inner bottom of the water collecting chamber 226 is completely drained. Not only is the growth of the water accumulation layer avoided due to long-term storage, but also the risk of overflow of the water collecting base 223 due to excessive water accumulation is avoided. In addition, the water is also easily drained.

[0056] In some embodiments, as shown in FIG. 1, the water collecting base 223 is provided with a flow guide part 227, the flow guide part 227 is located between the heat exchange element 222 and the water collecting base 223, the flow guide part 227 is arranged along the height direction and is inclined, that is, the side surface of the water collecting chamber 226 perpendicular to the height direction of the heat exchange host 22 is defined as a reference surface, and the flow guide part 227 is arranged to extend obliquely to the reference surface. The flow guide part 227 is provided with a flow guide through hole 228, the number of the flow guide through hole 228 can be selected to be one, the number of the flow guide through hole 228 can be selected to be multiple, and the flow guide through hole 228 is arranged on one side of the flow guide part 227 close to the reference surface, or the flow guide through hole 228 is uniformly arranged on the flow guide part 227, so that the large liquid beads condensed by the heat exchange element 222 in the height direction of the heat exchange host 22 drop to the flow guide part 227, and then the multiple large liquid beads flow through the flow guide through hole 228 and flow into the water collecting chamber 226.

[0057] In some embodiments, as shown in FIG. 1 and FIG. 2, the water collecting base 223 is provided with a liquid injection port 231 and a liquid outlet port 232, both of which are arranged on a side wall of the water collecting base 223 close to 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 delivery pipe 233 and a second liquid delivery pipe 234 of the water collecting chamber 226. One end of the first liquid delivery pipe 233 is connected to the liquid injection port 231, and the other end of the first liquid delivery pipe 233 is connected to the liquid inlet. One end of the second liquid delivery pipe 234 is connected to the liquid outlet port 232, and the other end of the second liquid delivery pipe 234 is connected to the liquid outlet. In this way, the external pipeline for communication between the liquid cooling machine body of the temperature adjustment 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 collecting base 223, which is convenient, fast and easy for subsequent maintenance.

[0058] Based on the structure and connection relationship of the ventilation liquid cooling type energy storage busbar device, the inventor also discloses an energy storage system including the ventilation liquid cooling type energy storage busbar device.

Claims

1. A ventilated liquid-cooled energy storage bus device, comprising: an energy storage bus box provided with an electrical compartment; a temperature detection module (1) installed in the electrical compartment; a temperature regulation module having a liquid cooling body, a conveying pipeline and a heat exchange device (2), the liquid cooling body being in communication with the heat exchange device (2) through the conveying pipeline, and the heat exchange device (2) being 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) being electrically connected to the BMS control module (3); the BMS control module (3) being capable of starting the heat exchange device (2) according to the temperature signal monitored by the temperature detection module (1), so that the heat exchange medium supplied by the liquid cooling body to the heat exchange device (2) exchanges heat with the gas in the electrical compartment.

2. The vented liquid-cooled energy storage busbar of claim 1, wherein, the heat exchange device (2) comprising an axial flow fan (21) and a heat exchange host (22), the heat exchange host (22) comprising a heat exchange shell and a heat exchange element (222), the heat exchange shell being provided with a heat exchange cavity and a heat exchange through hole (221) in communication with the heat exchange cavity, the heat exchange element (222) being arranged in the heat exchange cavity, the heat exchange shell being provided with a fan through port (225) in communication with the heat exchange cavity, the axial flow fan (21) being fixedly installed in the fan through port (225), the axial flow fan (21) being electrically connected to the BMS control module (3), and the heat exchange element (222) being in communication with the liquid cooling body through the conveying pipeline.

3. The vented liquid-cooled energy storage busbar of claim 2, wherein, the heat exchange shell further comprising a water collecting base (223) and a base plate (224), the water collecting base (223) being provided with a water collecting cavity (226) arranged to collect condensed water, the base plate (224) being fixedly connected to the water collecting base (223), and the base plate (224) and the water collecting base (223) surrounding the heat exchange cavity, the heat exchange through hole (221) being arranged in the base plate (224), and the axial flow fan (21) being bolted to the base plate (224).

4. The vented liquid-cooled energy storage busbar of claim 3, wherein, a height direction of the heat exchange host (22) being defined from the water collecting base (223) to the heat exchange element (222), the water collecting base (223) being provided with a flow guide portion (227) located between the heat exchange element (222) and the water collecting base (223), the flow guide portion (227) being arranged along and inclined to the height direction, and the flow guide portion (227) being provided with a flow guide through hole (228).

5. The vented liquid-cooled energy storage busbar of claim 3 or 4, wherein, 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 conveying pipeline comprises a first liquid conveying pipe (233) and a second liquid conveying pipe (234) of the water collecting chamber (226), one end of the first liquid conveying pipe (233) is connected to the liquid injection port (231), the other end of the first liquid conveying pipe (233) is connected to the liquid inlet, one end of the second liquid conveying pipe (234) is connected to the liquid outlet port (232), and the other end of the second liquid conveying pipe (234) is connected to the liquid outlet.

6. The vented liquid-cooled energy storage busbar of claim 2, wherein, Further comprising a relay switch part, the relay switch part comprises a coil element KA, a contact switch KM, and an on-board relay (6) arranged inside the BMS control module (3), the on-board relay (6) is electrically connected with 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 on-board 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 vented liquid-cooled energy storage busbar of claim 2, wherein, The heat exchange element (222) is a cooling coil.

8. The ventilated liquid-cooled energy storage busbar device according to claim 1 or 2 or 6, further comprising a UPS (4), the UPS (4) is arranged in the electrical compartment of the energy storage busbar box, the temperature detection module (1) is arranged to monitor the temperature of the UPS (4), and the UPS (4) is located in the coverage range of the air outlet end of the heat exchange device (2).

9. The ventilated liquid-cooled energy storage busbar device according to claim 1 or 2 or 6, further comprising a busbar (5) arranged to relay a power line, the busbar (5) is arranged in the electrical compartment of the energy storage busbar box, the temperature detection module (1) is arranged to monitor the temperature of the busbar (5), and the busbar (5) is located in the coverage range of the air outlet end of the heat exchange device (2).

10. The ventilated liquid-cooled energy storage busbar device according to claim 1 or 2 or 6, further comprising a UPS (4) and a busbar (5) arranged to relay a power line, and the temperature detection module (1) and the heat exchange device (2) are both arranged in two, one of the temperature detection modules (1) is arranged to monitor the temperature of the UPS (4), and the other temperature detection module (1) is arranged to monitor the temperature of the busbar (5). The heat exchange device (2) corresponding to the UPS (4) is defined as a first fan part (2a), and the heat exchange device (2) corresponding to the busbar (5) is defined as a second fan part (2b), the UPS (4) is located in the coverage range of the air outlet end of the first fan part (2a), and the busbar (5) is located in the coverage range of the air outlet end of the second fan part (2b).

11. An energy storage system comprising the vented liquid-cooled energy storage busbar of any one of claims 1 to 10.

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