Efficient heat dissipation fuse and energy storage system

Abstract

The utility model discloses an efficient heat dissipation fuse and an energy storage system, and relates to the technical field of energy storage systems. The high-efficiency heat dissipation fuse comprises a fuse, a glue pouring shell and a heat dissipation branch pipe, wherein the glue pouring shell comprises a shell body and a heat conduction part, the shell body is provided with a heat dissipation cavity, the heat dissipation coil pipe assembly of the heat dissipation branch pipe is arranged in the heat dissipation cavity, the two ends of the heat dissipation coil pipe assembly extend out of the shell body, the fuse is arranged in the glue pouring shell, and the heat conduction part is filled in the heat dissipation cavity. The heat dissipation coil pipe assembly is connected with the fuse and the heat dissipation coil pipe assembly; the heat dissipation branch pipe is further provided with a liquid inlet pipe and a liquid return pipe, the liquid inlet pipe, the heat dissipation coil pipe assembly and the liquid return pipe are sequentially connected, and the free end of the liquid inlet pipe and the free end of the liquid return pipe are used for being correspondingly connected to a liquid outlet and a liquid return opening of the liquid cooling unit so as to receive and guide cooling liquid to flow. By using the high-efficiency heat dissipation fuse, the heat dissipation effect of the fuse can be ensured, and the layout difficulty of a high-voltage box can be reduced.

Description

Technical Field

[0001] This application relates to the field of energy storage system technology, and more specifically, to a high-efficiency heat dissipation fuse. Furthermore, this application also relates to an energy storage system including the aforementioned high-efficiency heat dissipation fuse. Background Technology

[0002] An energy storage system is a system that collects energy and stores it in the form of electrical energy. When in use, the electrical energy is extracted and used during peak electricity demand periods, or it is transported to areas with energy shortages for use. As the capacity of energy storage systems increases, the current carrying capacity of the components inside the high-voltage box also increases. The increase in current carrying capacity means a greater demand for heat dissipation of the components, especially fuses. The fuse is the component with the highest temperature rise in the entire high-voltage box. Currently, in order to achieve heat dissipation of fuses and ensure their stable operation, fans are commonly installed in front of the fuses for ventilation or air blowing. However, placing the fan directly in front of the fuse takes up a lot of space, which is not conducive to the layout of components in the high-voltage box.

[0003] In conclusion, how to reduce the layout difficulty of the high-voltage box while ensuring the heat dissipation effect of the fuse is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a high-efficiency heat dissipation fuse, which can reduce the layout difficulty of the high-voltage box while ensuring the heat dissipation effect of the fuse.

[0005] Another objective of this application is to provide an energy storage system including the aforementioned high-efficiency heat dissipation fuse.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A high-efficiency heat dissipation fuse includes: a fuse, a potted housing, and a heat dissipation branch pipe;

[0008] The potting housing includes an outer shell body and a heat conduction section. The outer shell body has a heat dissipation chamber. The heat dissipation branch pipe heat dissipation coil assembly is disposed in the heat dissipation chamber, and both ends of the heat dissipation coil assembly extend to the outside of the outer shell body. The fuse is disposed inside the potting housing. The heat conduction section fills the heat dissipation chamber and abuts against the fuse and the heat dissipation coil assembly.

[0009] The heat dissipation branch pipe also has an inlet pipe and a return pipe. The inlet pipe, the heat dissipation coil assembly, and the return pipe are connected in sequence, and the free ends of the inlet pipe and the return pipe are used to connect to the outlet and return port of the liquid cooler unit respectively to receive and guide the flow of coolant.

[0010] Preferably, the heat dissipation coil assembly includes a coil body, a first liquid inlet connector, and a first liquid return connector;

[0011] The first end of the coil body is connected to the outlet end of the first inlet connector, and the second end of the coil body is connected to the inlet end of the first return connector.

[0012] The inlet pipe is connected to the inlet end of the first inlet connector, and the return pipe is connected to the outlet end of the first return connector.

[0013] The outer casing has two through holes, and the heat dissipation coil assembly has a first end of the first liquid inlet connector that is sealed and fits through one of the two through holes, and the heat dissipation coil assembly has a second end of the first liquid return connector that is sealed and fits into the other of the two through holes.

[0014] Preferably, the inlet pipe includes a first inlet pipe section, a second inlet pipe section, and a second inlet connector, and the return pipe includes a first return pipe section, a second return pipe section, and a second return connector;

[0015] The first liquid inlet pipe section is connected to the liquid outlet end of the liquid cooler unit and the liquid inlet end of the second liquid inlet connector, and the second liquid inlet pipe section is connected to the liquid outlet end of the second liquid inlet connector and the liquid inlet end of the first liquid inlet connector.

[0016] The first return liquid pipe section is connected to the return liquid end of the liquid cooler unit and the outlet liquid end of the second return liquid connector, and the first return liquid pipe section is connected to the inlet liquid end of the second return liquid connector and the outlet liquid end of the second return liquid connector.

[0017] The potting housing is used to be installed in the inner cavity of the high-pressure box, and the second liquid inlet connector and the second liquid return connector are used to seal the panel of the high-pressure box.

[0018] Preferably, the coil body includes several first guide pipe sections, several second guide pipe sections, and two connecting pipe sections;

[0019] The first guide pipe section and the connecting pipe section are both straight pipes, while the second guide pipe section is an arched pipe.

[0020] Several first guide pipe sections are arranged in parallel, and the ends of two adjacent first guide pipe sections that are close to each other are connected to the corresponding second guide pipe section to form a serpentine coil.

[0021] One end of one of the connecting pipe sections is connected to the first end of the serpentine coil, and the other end is connected to the outlet end of the first inlet connector;

[0022] One end of the other connecting pipe section is connected to the second end of the serpentine coil, and the other end is connected to the inlet end of the first return connector.

[0023] Preferably, the tail end of the first liquid inlet connector and the tail end of the first liquid return connector are both nut structures, and both ends of the heat dissipation coil assembly have threaded pipe sections.

[0024] The threaded pipe section at the first end of the heat dissipation coil assembly is threadedly inserted into the nut structure of the first liquid inlet connector, and the threaded pipe section at the second end of the heat dissipation coil assembly is threadedly inserted into the nut structure of the first liquid return connector.

[0025] Preferably, the first inlet pipe section is connected to the outlet end of the liquid chiller unit via a switching valve, and the first return pipe section is connected to the return end of the liquid chiller unit via the switching valve.

[0026] Preferably, the device further includes a temperature sensor and a controller. The temperature sensor is used to acquire the temperature of the fuse, and the controller is signal-connected to the switching valve and the temperature sensor to control the opening and closing of the switching valve according to the temperature of the fuse.

[0027] An energy storage system includes a liquid cooler unit and a high-efficiency heat dissipation fuse as described in any of the preceding claims, wherein the free end of the inlet pipe is connected to the outlet of the liquid cooler unit, and the free end of the return pipe is connected to the return port of the liquid cooler unit.

[0028] Preferably, it also includes a high-pressure box, the potting housing is disposed inside the high-pressure box, and the heat dissipation branch pipe passes through the high-pressure box.

[0029] Preferably, it also includes a battery box, a main inlet pipe, a main return pipe, branch inlet pipes, and branch outlet pipes;

[0030] The branch inlet pipe is used to connect to the liquid inlet end of the cooling component in the battery box, and the branch outlet pipe is used to connect to the liquid outlet end of the cooling component in the battery box.

[0031] The first end of the liquid inlet manifold is connected to the liquid outlet end of the liquid chiller, and the first end of the liquid return manifold is connected to the liquid return end of the liquid chiller.

[0032] The second end of the main inlet pipe is connected to the inlet pipe, and the second end of the main return pipe is connected to the return pipe;

[0033] The third end of the main inlet pipe is connected to the branch inlet pipe, and the second end of the main return pipe is connected to the branch outlet pipe.

[0034] In this application, the outer shell of the potting housing has a heat dissipation chamber and two through holes on the side wall of the outer shell. Correspondingly, the heat dissipation branch pipe includes three parts: a heat dissipation coil assembly, an inlet pipe, and a return pipe. The main structure of the heat dissipation coil assembly is set in the heat dissipation chamber, and the inlet and outlet ends of the heat dissipation coil assembly extend to the outside of the outer shell through the aforementioned through holes. The inlet end of the heat dissipation coil assembly can be connected to the inlet pipe, and the outlet end of the heat dissipation coil assembly can be connected to the return pipe. One end of the inlet pipe is connected to the inlet end of the heat dissipation coil assembly, and the other end is connected to the outlet of the liquid chiller during use. One end of the return pipe is connected to the return end of the heat dissipation coil assembly, and the other end is connected to the return port of the liquid chiller. The refrigerant output by the liquid chiller flows sequentially through the inlet pipe, the heat dissipation coil assembly, and the return pipe along a preset path, and finally flows back to the liquid chiller to achieve circulation.

[0035] The heat dissipation chamber is filled with a heat conduction section for conducting the heat generated by the fuse during operation. The heat conduction section abuts against the bottom structure of the heat dissipation coil assembly and the fuse. The heat generated by the fuse during operation can be conducted to the refrigerant flowing inside the heat dissipation coil assembly through the heat conduction section. The refrigerant carries away the heat from the heat conduction section, thereby cooling the fuse. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0037] Figure 1 A front view of the specific embodiments provided in this application;

[0038] Figure 2 This is a schematic diagram illustrating another aspect of the use of a specific embodiment provided in this application;

[0039] Figure 3 for Figure 2 Top view;

[0040] Figure 4 A front view of the potting housing and fuse provided in the specific embodiments of this application;

[0041] Figure 5 for Figure 4 Sectional view of AA;

[0042] Figure 6 A top view of the potting housing and fuse provided in the specific embodiments of this application;

[0043] Figure 7 An exploded view of the potting housing provided in the specific embodiments of this application;

[0044] Figure 8 A top view of the potting housing provided in the specific embodiments of this application;

[0045] Figure 9 A front view of the potting housing provided in the specific embodiments of this application;

[0046] Figure 10 for Figure 9 BB section view;

[0047] Figure 11 This is a top view of a partial structure of the potting housing provided in a specific embodiment of this application.

[0048] Figure label:

[0049] 1-Fuse;

[0050] 2-Potting shell; 21-Outer shell body; 211-Heat dissipation chamber; 22-Heat conduction part; 23-First liquid inlet connector; 231-Nut structure; 24-First liquid return connector;

[0051] 31-Cooling coil assembly; 311-First guide pipe section; 312-Second guide pipe section; 313-Connecting pipe section; 3131-Threaded pipe section; 3132-Positioning flange; 321-First liquid inlet pipe section; 322-Second liquid inlet pipe section; 331-First liquid return pipe section; 332-Second liquid return pipe section;

[0052] 4-Second inlet connector; 5-Second return connector; 6-Sealing ring; 7-Switch valve; 8-High pressure box; 9-Battery box; 10-Main inlet pipe; 11-Main return pipe; 12-Branch inlet pipe; 13-Branch outlet pipe. Detailed Implementation

[0053] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0054] The core of this application is to provide a high-efficiency heat-dissipating fuse, which can reduce the layout complexity of the high-voltage box 8 while ensuring the heat dissipation effect of the fuse 1. Another core aspect of this application is to provide an energy storage system that includes the aforementioned high-efficiency heat-dissipating fuse.

[0055] This application provides a high-efficiency heat dissipation fuse, including a fuse 1, a potted housing 2, and a heat dissipation branch pipe; wherein, the potted housing 2 includes an outer shell body 21 and a heat conduction part 22, the outer shell body 21 has a heat dissipation chamber 211, the heat dissipation coil assembly 31 of the heat dissipation branch pipe is disposed in the heat dissipation chamber 211, and both ends of the heat dissipation coil assembly 31 extend to the outside of the outer shell body 21, the fuse 1 is disposed inside the potted housing 2, the heat conduction part 22 fills the heat dissipation chamber 211 and abuts against the fuse 1 and the heat dissipation coil assembly 31; the heat dissipation branch pipe also has an inlet pipe and a return pipe, the inlet pipe, the heat dissipation coil assembly 31 and the return pipe are connected in sequence, and the free ends of the inlet pipe and the return pipe are used to connect to the outlet and return port of the liquid cooling unit respectively, so as to receive and guide the flow of coolant.

[0056] Specifically, such as Figures 7 to 11 As shown, in the potting housing 2, the outer shell body 21 has a heat dissipation chamber 211, and two through holes are opened on the side wall of the outer shell body 21. Correspondingly, the heat dissipation branch pipe includes three parts, namely the heat dissipation coil assembly 31, the liquid inlet pipe and the liquid return pipe, as shown. Figures 1 to 3 As shown, the main structure of the heat dissipation coil assembly 31 is set in the heat dissipation chamber 211. The liquid inlet and liquid outlet of the heat dissipation coil assembly 31 extend to the outside of the outer shell 21 through the above-mentioned through holes. The liquid inlet of the heat dissipation coil assembly 31 can be connected to the liquid inlet pipe, and the liquid outlet of the heat dissipation coil assembly 31 can be connected to the liquid return pipe. One end of the liquid inlet pipe is connected to the liquid inlet of the heat dissipation coil assembly 31, and the other end is connected to the liquid outlet of the liquid chiller during use. One end of the liquid return pipe is connected to the liquid return end of the heat dissipation coil assembly 31, and the other end is connected to the liquid return port of the liquid chiller. The refrigerant output by the liquid chiller flows along a preset path through the liquid inlet pipe, the heat dissipation coil assembly 31 and the liquid return pipe in sequence, and finally flows back to the liquid chiller to achieve circulation.

[0057] like Figures 4 to 6 As shown, the heat dissipation chamber 211 is filled with a heat conduction section 22 for conducting the heat generated by the operation of the fuse 1. The heat conduction section 22 abuts against the bottom structure of the heat dissipation coil assembly 31 and the fuse 1. The heat generated by the operation of the fuse 1 can be conducted to the refrigerant flowing inside the heat dissipation coil assembly 31 through the heat conduction section 22. The heat of the heat conduction section 22 is carried away by the refrigerant, so as to achieve cooling of the fuse 1.

[0058] It should be noted that the type of heat conduction part 22 is not limited, as long as it can achieve the function of heat conduction. For example, in some specific embodiments, the heat conduction part 22 can adopt a magnesium oxide ceramic structure, so as to conduct the heat of the fuse 1 to the coolant in the heat dissipation coil assembly 31 while avoiding the fuse 1 being affected. Preferably, in some specific embodiments, the heat conduction part 22 adopts thermally conductive adhesive that is potted into the heat dissipation chamber 211. During manufacturing, thermally conductive adhesive is poured into the heat dissipation chamber 211 of the outer shell body 21, and then the bottom structure of the fuse 1 is inserted into the thermally conductive adhesive. After the thermally conductive adhesive cures, it is ready. This setting helps to ensure the heat dissipation effect while effectively reducing the assembly difficulty.

[0059] Based on the above embodiments, the heat dissipation coil assembly 31 includes a coil body, a first liquid inlet connector 23 and a first liquid return connector 24;

[0060] The first end of the coil body is connected to the outlet end of the first inlet connector 23, and the second end of the coil body is connected to the inlet end of the first return connector 24.

[0061] The inlet pipe is connected to the inlet end of the first inlet connector 23, and the return pipe is connected to the outlet end of the first return connector 24.

[0062] The outer casing 21 has two through holes. The heat dissipation coil assembly 31 has a first end of the first liquid inlet connector 23 that is sealed and fits through one of the two through holes. The heat dissipation coil assembly 31 has a second end of the first liquid return connector 24 that is sealed and fits into the other of the two through holes.

[0063] Specifically, such as Figures 3 to 11As shown, the two ends of the heat dissipation coil assembly 31 are respectively inserted into two through holes on the side wall of the outer casing 21. The first liquid inlet connector 23 and the first liquid return connector 24 are respectively set in the two through holes, so that the two ends of the heat dissipation coil assembly 31 can extend out of the outer casing 21 through the corresponding through holes. Specifically, the liquid inlet end of the first liquid inlet connector 23 and the liquid outlet end of the first liquid return connector 24 are both located outside the outer casing 21 to facilitate connection of the liquid inlet pipe or the liquid return pipe. One end of the coil body is connected to the liquid outlet end of the first liquid inlet connector 23, and the other end is connected to the liquid inlet end of the first liquid return connector 24. In use, the first liquid inlet connector 23 is inserted into the side wall of the outer casing 21. The inlet end of 3 is connected to one end of the inlet pipe, and the other end of the inlet pipe is connected to the outlet of the liquid cooler unit during use. The outlet end of the first return connector 24 is connected to one end of the return pipe, and the other end of the return pipe is connected to the return port of the liquid cooler unit during use, so that the coolant output by the liquid cooler unit can flow along the above-mentioned preset path to achieve heat dissipation. With this configuration, the high-efficiency heat dissipation fuse is easy to assemble. Moreover, since sealing structures, such as sealing rings or sealant, are provided between the first return connector 24 and the outer shell 21, and between the second return connector 5 and the outer shell 21, the overflow of thermally conductive adhesive when it is potted in the heat dissipation chamber 211 is effectively prevented.

[0064] Optionally, in some specific embodiments, the inlet end of the first liquid inlet connector 23 and the outlet end of the second liquid inlet connector 4 extend through corresponding through holes to the outside of the outer casing 21, while the outlet end of the first liquid inlet connector 23 and the inlet end of the second liquid inlet connector 4 are located in the heat dissipation chamber 211. In other specific embodiments, such as... Figure 7 and Figure 10 As shown, the first liquid inlet connector 23 and the first liquid return connector 24 are both located outside the outer shell body 21. The internal cavity of the first liquid inlet connector 23 and the internal cavity of the first liquid return connector 24 extend along the same center line as the corresponding through hole. Correspondingly, one end of the coil body passes through a through hole and is connected to the liquid outlet of the first liquid inlet connector 23, and the other end of the coil body passes through another through hole and is connected to the liquid inlet of the first liquid return connector 24.

[0065] It should be noted that the arrangement of the first liquid inlet connector 23 and the first liquid return connector 24 is not limited, as long as the layout requirements are met. For example, in some specific embodiments, the first liquid inlet connector 23 and the first liquid return connector 24 are arranged opposite to each other, as shown in the reference. Figure 10 As shown, the first liquid inlet connector 23 and the first liquid return connector 24 both extend vertically, and the first liquid inlet connector 23 and the first liquid return connector 24 extend along the same center line; preferably, in some other specific embodiments, the outer shell body 21 adopts a rectangular shell, and the first liquid inlet connector 23 and the first liquid return connector 24 are both arranged on the same side plate of the outer shell body 21.

[0066] Based on the above embodiments, the liquid inlet pipe includes a first liquid inlet pipe section 321, a second liquid inlet pipe section 322, and a second liquid inlet connector 4, and the liquid return pipe includes a first liquid return pipe section 331, a second liquid return pipe section 332, and a second liquid return connector 5.

[0067] The first liquid inlet pipe section 321 is connected to the liquid outlet end of the liquid cooler and the liquid inlet end of the second liquid inlet connector 4. The second liquid inlet pipe section 322 is connected to the liquid outlet end of the second liquid inlet connector 4 and the liquid inlet end of the first liquid inlet connector 23.

[0068] The first return pipe section 331 is connected to the return end of the liquid cooler and the outlet end of the second return connector 5. The first return pipe section 331 is also connected to the inlet end of the second return connector 5 and the outlet end of the second return connector 5.

[0069] The potting housing 2 is located inside the high-pressure box 8, and the second liquid inlet connector 4 and the second liquid return connector 5 are sealed on the panel of the high-pressure box 8.

[0070] Specifically, such as Figures 1 to 3 As shown, the liquid inlet pipe is divided into two parts, namely the first liquid inlet pipe section 321 and the second liquid inlet pipe section 322, and a second liquid inlet connector 4 is provided between the two parts to connect the first liquid inlet pipe section 321 and the second liquid inlet pipe section 322 together. The internal cavity of the first liquid inlet pipe section 321 and the internal cavity of the second liquid inlet pipe section 322 can be connected through the internal cavity of the second liquid inlet connector 4, so that the coolant can flow along the first liquid inlet pipe section 321, the second liquid inlet connector 4 and the second liquid inlet pipe section 322. Similarly, the return pipe is divided into two parts, namely the first return pipe section 331 and the second return pipe section 332, and a second return connector 5 is provided between these two parts to connect the first return pipe section 331 and the second return pipe section 332 together. The internal cavity of the second return connector 5 can communicate with the internal cavity of the first return pipe section 331 and the internal cavity of the second return pipe section 332, so that the coolant can flow along the first return pipe section 331, the second return connector 5 and the second return pipe section 332.

[0071] In use, the second liquid inlet connector 4 is sealed and inserted into the mounting through hole on the side wall of the high-pressure box 8, and the second liquid return connector 5 is sealed and inserted into the mounting through hole on the side wall of the high-pressure box 8. Then, the open end of the first liquid inlet pipe section 321 is connected to the liquid outlet of the liquid cooler unit, and the open end of the second liquid inlet pipe section 322 is connected to the liquid inlet end of the first liquid inlet connector 23. Similarly, the open end of the first liquid return pipe section 331 is connected to the liquid return port of the liquid cooler unit, and the open end of the second liquid return pipe section 332 is connected to the liquid outlet end of the first liquid return connector 24. This allows the coolant output by the liquid cooler unit to flow along the above-mentioned preset path to achieve heat dissipation, thus meeting the requirement of placing the high-efficiency heat dissipation fuse in the inner cavity of the high-pressure box 8, while further reducing the assembly difficulty.

[0072] Based on the above embodiments, the coil body includes several first guide pipe sections 311, several second guide pipe sections 312, and two connecting pipe sections 313.

[0073] The first diversion pipe section 311 and the connecting pipe section 313 are both straight pipes, while the second diversion pipe section 312 is an arched pipe;

[0074] Several first guide pipe sections 311 are arranged in parallel, and the ends of two adjacent first guide pipes that are close to each other are connected to the corresponding second guide pipe section 312 to form a serpentine coil.

[0075] One end of a connecting pipe section 313 is connected to the first end of the serpentine coil, and the other end is connected to the outlet end of the first liquid inlet connector 23;

[0076] One end of the other connecting pipe section 313 is connected to the second end of the serpentine coil, and the other end is connected to the inlet end of the first return connector 24.

[0077] Specifically, the first guide pipe section 311 and the connecting pipe section 313 are both straight pipes, while the second guide pipe section 312 is an arched pipe. Specifically, the first guide pipe section 311 extends along the width direction of the outer shell body 21, and several first guide pipe sections 311 are arranged sequentially along the length direction of the outer shell body 21. Along the length direction of the outer shell body 21, two first guide pipe sections 311 are connected through the second guide pipe section 312 to form a reciprocating spiral serpentine coil. The corresponding connecting pipe section 313 is connected to the two open ends of the serpentine coil. In use, one of the open ends of the two connecting pipe sections 313 is connected to the outlet end of the first liquid inlet port, and the other is connected to the inlet end of the first liquid return port.

[0078] For example, such as Figure 8 As shown, the first guide pipe section 311 extends vertically, and several first guide pipe sections 311 are arranged horizontally in sequence. From left to right, the upper ends of the first two first guide pipe sections 311 are connected by a second guide pipe section, the lower ends of the third and fourth first guide pipe sections 311 are connected by a second guide pipe section 312, and the upper ends of the fifth and sixth first guide pipe sections 311 are connected by a second guide pipe section 312. If there are more first guide pipe sections 311, the corresponding second guide pipe sections 312 are set according to the above-mentioned rule that the first to sixth sections are connected by a second guide pipe section 312. Several first guide pipe sections 311 are connected by corresponding guide pipe sections to form a serpentine coil, and a connecting pipe section 313 is connected to the lower end of the leftmost first guide pipe section 311, and another connecting pipe section 313 is connected to the lower end of the rightmost first guide pipe section 311.

[0079] With this configuration, the coil body can make full contact with the heat conduction part 22 to improve the heat dissipation efficiency of the fuse 1.

[0080] Based on the above embodiments, the tail end of the first liquid inlet connector 23 and the tail end of the first liquid return connector 24 are both nut structures 231, and both ends of the heat dissipation coil assembly 31 have threaded pipe sections 3131.

[0081] The threaded pipe section 3131 at the first end of the heat dissipation coil assembly 31 is threadedly inserted into the nut structure 231 of the first liquid inlet connector 23, and the threaded pipe section 3131 at the second end of the heat dissipation coil assembly 31 is threadedly inserted into the nut structure 231 of the first liquid return connector 24.

[0082] Specifically, such as Figure 7 As shown, the threaded pipe section 3131, which has external threads machined on the outer periphery of the two open ends of the coil body, and the corresponding internally threaded pipe section on the inner wall of the right open end of the first liquid inlet connector 23 and the first liquid return connector 24, are the aforementioned nut structure 231. In use, the coil body is placed into the heat dissipation chamber 211, and the left open end of the coil body is inserted into the left through hole of the outer shell body 21, and the right open end of the coil body is inserted into the right through hole of the outer shell body 21. Then, the right nut structure 231 of the first liquid return connector 24 is tightened on the left open end of the coil body, and the right nut structure 231 of the first liquid outlet connector is tightened on the right open end of the coil body. The installation of the heat dissipation coil assembly 31 is thus completed. This configuration, through the cooperation of the nut structure 231 and the threaded pipe section 3131, helps to reduce the installation difficulty of the heat dissipation coil assembly 31. At the same time, the cooperation between the two ends of the heat dissipation coil assembly 31 and the outer shell body 21 helps to improve the stability of the heat dissipation coil assembly 31.

[0083] Furthermore, such as Figure 7 and Figure 10 As shown, both open ends of the coil body have positioning flanges 3132. The positioning flanges 3132 at both ends of the coil body abut against the inner wall of the outer shell body 21, and a sealing ring 6 is sandwiched between the positioning flanges 3132 and the outer shell body 21 to ensure that the outer shell body 21 and the first liquid inlet connector 23 and the outer shell body 21 and the first liquid return connector 24 are sealed together. With this setting, the positioning flanges 3132 can be used to position the heat dissipation coil assembly 31 during assembly, and the sealing ring 6 can prevent the thermal conductive adhesive from overflowing when it is potted in the heat dissipation chamber 211.

[0084] Based on the above embodiments, the first liquid inlet pipe section 321 is connected to the liquid outlet end of the liquid chiller unit through the switching valve 7, and the first liquid return pipe section 331 is connected to the liquid return end of the liquid chiller unit through the switching valve 7.

[0085] Specifically, such as Figure 1As shown, the high-efficiency heat dissipation fuse is equipped with two switching valves 7. In use, one working end of one switching valve 7 is connected to the open end of the first liquid inlet pipe section 321, and the other working end is connected to the liquid outlet of the liquid cooler unit. One working end of the other switching valve 7 is connected to the open end of the first liquid return connector 24, and the other working end is connected to the liquid return port of the liquid cooler unit.

[0086] It should be noted that the connection to the liquid outlet and return port of the liquid chiller can be directly connected to the corresponding liquid port of the liquid chiller, or it can be indirectly connected to the corresponding liquid port of the liquid chiller through the liquid inlet main pipe 10 or the liquid return main pipe 11.

[0087] To improve the automation level of this high-efficiency heat dissipation fuse, based on the above embodiment, a temperature acquisition device and a controller are also included. The temperature acquisition device is used to acquire the temperature of the fuse 1, and the controller signal connects the switching valve 7 and the temperature acquisition device to control the opening and closing of the switching valve 7 according to the temperature of the fuse 1.

[0088] In use, the temperature sensor acquires the operating temperature of fuse 1 in real time and transmits it to the controller. The controller compares the operating temperature with the set temperature. When the operating temperature exceeds the set temperature, it controls the switch valve 7 to open or close. For example, in some specific embodiments, the set temperature is the highest threshold. When the operating temperature is greater than the set temperature, the switch valve 7 is controlled to open. Alternatively, in some specific embodiments, the set temperature is a temperature range with a minimum and a maximum limit value. When the operating temperature is greater than the maximum limit value, the switch valve 7 is controlled to open. Conversely, when the operating temperature is less than the minimum limit value, the switch valve 7 is controlled to close to reduce energy consumption.

[0089] It should be noted that the type of temperature sensor is not limited, as long as it can acquire the temperature of fuse 1. For example, in some specific embodiments, such as... Figure 3 As shown, the temperature acquisition device can be a temperature sensor, and the detection head of the temperature sensor is abutted against the conductive copper busbar of the fuse 1 or electrically connected to the copper busbar of the fuse 1, so as to directly detect the temperature of the fuse 1. Alternatively, in some specific embodiments, the temperature acquisition device can be a sub-controller connected to the main control panel of the energy storage system, so as to obtain the temperature of the fuse 1 from the main control panel.

[0090] In addition to the aforementioned high-efficiency heat dissipation fuse, this application also provides an energy storage system that includes the high-efficiency heat dissipation fuse disclosed in the above embodiments. The energy storage system further includes a liquid cooling unit. The open end of the inlet pipe is connected to the outlet of the liquid cooling unit, and the open end of the return pipe is connected to the return port of the liquid cooling unit. When the energy storage system is working, the liquid cooling unit outputs coolant to cool the battery pack. At the same time, the coolant can flow sequentially through the inlet pipe, the heat dissipation coil assembly 31, and the return pipe along a preset path, and finally flow back to the liquid cooling unit to achieve circulation, thereby achieving heat dissipation for the fuse 1.

[0091] Based on the above embodiments, a high-pressure box 8 is also included, with a potting housing 2 disposed inside the high-pressure box 8 and a heat dissipation branch pipe passing through the high-pressure box 8.

[0092] Specifically, such as Figures 1 to 3 As shown, the high-pressure box 8 is a hollow box. The aforementioned high-efficiency heat dissipation fuse is installed inside the high-pressure box 8. In order to connect the liquid cooling unit located outside the high-pressure box 8, the inlet and outlet pipes of the heat dissipation branch pipe are both passed through the panel of the high-pressure box 8.

[0093] In some specific embodiments, when the energy storage system uses a high-efficiency heat dissipation fuse equipped with a first liquid inlet connector 23, a first liquid return connector 24, a second liquid inlet connector 4, and a second liquid return connector 5, the second liquid inlet connector 4 and the second liquid return connector 5 are both installed on the panel of the high-pressure box 8. The second liquid inlet pipe section 322 is connected to the liquid outlet end of the second liquid inlet connector 4, the first liquid inlet pipe section 321 is connected to the liquid inlet end of the second liquid inlet connector 4, the second liquid return pipe section 332 is connected to the liquid inlet end of the second liquid return connector 5, and the first liquid return pipe section 331 is connected to the liquid outlet end of the second liquid return connector 5. When the fuse 1 is cooled by the coolant, the coolant will flow sequentially through the first liquid inlet pipe section 321, the second liquid inlet connector 4, the second liquid inlet pipe section 322, the first liquid inlet connector 23, the coil body, the first liquid return connector 24, the second liquid return pipe section 332, the second liquid return connector 5, and the first liquid return pipe section 331, and finally flow back to the liquid cooling unit.

[0094] Based on the above embodiments, it also includes a battery box 9, an inlet main pipe 10, an outlet main pipe 11, a branch inlet pipe 12, and a branch outlet pipe 13;

[0095] Branch inlet pipe 12 is used to connect to the liquid inlet end of the cooling component in the battery box 9, and branch outlet pipe 13 is used to connect to the liquid outlet end of the cooling component in the battery box 9.

[0096] The first end of the liquid inlet manifold 10 is connected to the liquid outlet end of the liquid chiller, and the first end of the liquid return manifold 11 is connected to the liquid return end of the liquid chiller.

[0097] The second end of the inlet manifold 10 is connected to the inlet pipe, and the second end of the return manifold 11 is connected to the return pipe;

[0098] The third end of the main inlet pipe 10 is connected to the branch inlet pipe 12, and the second end of the main return pipe 11 is connected to the branch outlet pipe 13.

[0099] Specifically, such as Figure 1 As shown, the energy storage system is equipped with a support frame, a high-voltage box 8, and several battery boxes 9. The support frame has several vertical installation spaces. The battery boxes 9 are arranged sequentially from top to bottom, with the high-voltage box 8 installed in the lowest installation space. To dissipate heat from the battery packs in the battery boxes 9 and the fuses 1 in the high-voltage box 8, both the inlet manifold 10 and the return manifold 11 extend vertically, with the inlet manifold located on the left and the return manifold 11 located on the right. Correspondingly, one end of the branch inlet pipe 12 is connected to the inlet manifold 10, and the other end passes through the side wall of the battery box 9 and connects to the inlet end of the cooling component in the battery box 9. Similarly, one end of the branch outlet pipe 13 is located inside the battery box 9 and connects to the outlet of the cooling component in the battery box 9. One end extends through the side wall of the battery box 9 to the outside and is connected to the return main pipe 11. The coolant can then flow through the inlet main pipe 10, the branch inlet pipe 12, the cooling assembly, the branch outlet pipe 13, and the return main pipe 11, and finally flow back to the liquid cooling assembly to cool the battery pack. At the same time, the section of the inlet pipe extending out of the high-voltage box 8 extends to the upper left and is connected to the lower opening end of the inlet main pipe 10. The section of the return pipe extending out of the high-voltage box 8 extends to the upper right and is connected to the lower opening end of the return main pipe 11. The coolant can then flow sequentially through the inlet main pipe 10, the inlet pipe, the heat dissipation coil assembly 31, the return pipe, and the return main pipe 11, and finally flow back to the liquid cooling assembly to cool the fuse 1.

[0100] It should be noted that the relational terms such as "first" and "second" mentioned above are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities; the terms "top" and "bottom" and the directional terms "up," "down," "left," and "right" mentioned above are defined based on the accompanying drawings in the specification.

[0101] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0102] The high-efficiency heat dissipation fuse and energy storage system provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of this application.

Claims

1. A high efficiency heat sink fuse characterized by, The application relates to a high-voltage fuse (1) and a glue-filled shell (2) and a heat dissipation branch pipe. The glue-filled shell (2) comprises a shell body (21) and a heat conduction part (22), the shell body (21) is provided with a heat dissipation cavity (211), a heat dissipation coil assembly (31) of the heat dissipation branch pipe is arranged in the heat dissipation cavity (211), both ends of the heat dissipation coil assembly (31) extend to the outside of the shell body (21), the high-voltage fuse (1) is arranged in the inside of the glue-filled shell (2), the heat conduction part (22) is filled in the heat dissipation cavity (211) and abuts against the high-voltage fuse (1) and the heat dissipation coil assembly (31). The heat dissipation branch pipe is further provided with a liquid inlet pipe and a liquid return pipe, the liquid inlet pipe, the heat dissipation coil assembly (31) and the liquid return pipe are sequentially connected, and the free ends of the liquid inlet pipe and the liquid return pipe are used for being correspondingly connected to liquid outlets and liquid return ports of a liquid cooling unit so as to receive and guide the flow of cooling liquid. The heat dissipation coil assembly (31) comprises a coil body, a first liquid inlet joint (23) and a first liquid return joint (24).

2. The high efficient heat dissipating fuse according to claim 1, wherein, The first end of the coil body is connected to the liquid outlet end of the first liquid inlet joint (23), and the second end of the coil body is connected to the liquid inlet end of the first liquid return joint (24). The liquid inlet pipe is connected to the liquid inlet end of the first liquid inlet joint (23), and the liquid return pipe is connected to the liquid outlet end of the first liquid return joint (24). The shell body (21) is provided with two through holes, the heat dissipation coil assembly (31) is provided with the first end of the first liquid inlet joint (23) which is sealingly matched with one of the two through holes, and the heat dissipation coil assembly (31) is provided with the second end of the first liquid return joint (24) which is inserted into the other one of the two through holes. The liquid inlet pipe comprises a first liquid inlet pipe section (321), a second liquid inlet pipe section (322) and a second liquid inlet joint (4), and the liquid return pipe comprises a first liquid return pipe section (331), a second liquid return pipe section (332) and a second liquid return joint (5).

3. The high efficiency heat sinking fuse of claim 2 wherein, The first liquid inlet pipe section (321) is connected to the liquid outlet end of the liquid cooling unit and the liquid inlet end of the second liquid inlet joint (4), and the second liquid inlet pipe section (322) is connected to the liquid outlet end of the second liquid inlet joint (4) and the liquid inlet end of the first liquid inlet joint (23). The first liquid return pipe section (331) is connected to the liquid return end of the liquid cooling unit and the liquid outlet end of the second liquid return joint (5), and the first liquid return pipe section (331) is connected to the liquid inlet end of the second liquid return joint (5) and the liquid outlet end of the second liquid return joint (5). The glue-filled shell (2) is arranged in the inner cavity of a high-voltage box (8), and the second liquid inlet joint (4) and the second liquid return joint (5) are sealingly arranged on the panel of the high-voltage box (8). The coil body comprises a plurality of first flow guide pipe sections (311), a plurality of second flow guide pipe sections (312) and two connecting pipe sections (313).

4. The high efficiency heat sinking fuse of claim 3 wherein, ​ The first flow guide pipe section (311) and the connecting pipe section (313) are straight pipes, and the second flow guide pipe section (312) is an arch pipe; The first flow guide pipe sections (311) are arranged in parallel, and the end portions of adjacent two first flow guide pipes are connected to the corresponding second flow guide pipe sections (312) to form a serpentine coil pipe; One end of one connecting pipe section (313) is connected to a first end of the serpentine coil pipe, and the other end is connected to a liquid outlet end of the first liquid inlet connector (23); One end of another connecting pipe section (313) is connected to a second end of the serpentine coil pipe, and the other end is connected to a liquid inlet end of the first liquid return connector (24).

5. The high efficiency heat sinking fuse of claim 4 wherein, The tail end of the first liquid inlet connector (23) and the tail end of the first liquid return connector (24) are both nut structures (231), and both ends of the heat dissipation coil pipe assembly (31) have threaded pipe sections (3131); The threaded pipe section (3131) at the first end of the heat dissipation coil pipe assembly (31) is inserted into the nut structure (231) of the first liquid inlet connector (23) in threaded cooperation, and the threaded pipe section (3131) at the second end of the heat dissipation coil pipe assembly (31) is inserted into the nut structure (231) of the first liquid return connector (24) in threaded cooperation.

6. The high efficiency heat sinking fuse of claim 3 wherein, The first liquid inlet pipe section (321) is connected to a liquid outlet end of the liquid cooling unit through a switch valve (7), and the first liquid return pipe section (331) is connected to a liquid return end of the liquid cooling unit through the switch valve (7).

7. The high efficiency heat sinking fuse of claim 6 wherein, Further comprising a temperature acquirer for acquiring the temperature of the fuse (1), and a controller signal connected to the switch valve (7) and the temperature acquirer to control the opening and closing of the switch valve (7) according to the temperature of the fuse (1).

8. An energy storage system comprising a liquid-cooled unit, characterized in that, Further comprising the high-efficiency heat dissipation fuse of any one of claims 1-7, wherein a free end of the liquid inlet pipe is connected to a liquid outlet of the liquid cooling unit, and a free end of the liquid return pipe is connected to a liquid return of the liquid cooling unit.

9. The energy storage system of claim 8, wherein, Further comprising a high-voltage box (8), wherein the glue-filled shell (2) is arranged inside the high-voltage box (8), and the heat dissipation branch pipe passes through the high-voltage box (8).

10. The energy storage system of claim 9, wherein, Further comprising a battery box (9), a liquid inlet main pipe (10), a liquid return main pipe (11), a branch liquid inlet pipe (12), and a branch liquid return pipe (13); The branch liquid inlet pipe (12) is used to be connected to a liquid inlet end of a cooling assembly in the battery box (9), and the branch liquid return pipe (13) is used to be connected to a liquid outlet end of the cooling assembly in the battery box (9); A first end of the liquid inlet main pipe (10) is connected to a liquid outlet end of the liquid cooling unit, and a first end of the liquid return main pipe (11) is connected to a liquid return end of the liquid cooling unit; A second end of the liquid inlet main pipe (10) is connected to the liquid inlet pipe, and a second end of the liquid return main pipe (11) is connected to the liquid return pipe; A third end of the liquid inlet main pipe (10) is connected to the branch liquid inlet pipe (12), and a second end of the liquid return main pipe (11) is connected to the branch liquid return pipe (13).

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