High-voltage control box and energy storage system

Abstract

Provided in the present application are a high-voltage control box and an energy storage system. The box body of the high-voltage control box is provided with an accommodating cavity and a first opening; a first support is arranged in the accommodating cavity, and the first support is configured to mount a component group; a cooling element is provided at the first opening; and a heat-conducting assembly is fitted between the cooling element and the first support, thereby improving the heat dissipation efficiency for the component group in the high-voltage control box. The present application improves the heat dissipation effect in the high-voltage control box, and reduces the internal temperature rise of the high-voltage control box.

Description

High-voltage control box and energy storage system

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on March 16, 2024, with application number 202420514040.7. The entire contents of the above application are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of energy storage technology, and in particular to a high-voltage control box and an energy storage system. Background Art

[0003] The high-voltage control box, also known as the high-voltage box or high-voltage control box, is an important component for managing the high-voltage power circuit of the energy storage system. It is an intermediate unit connecting the battery cluster and the energy storage converter. The high-voltage control box has functions such as battery cluster voltage and battery cluster current collection, battery cluster circuit contactor control and protection.

[0004] As the requirements for battery product operating conditions (charge and discharge rates, ambient temperature, operating temperature, etc.) become increasingly stringent, the temperature rise of components in the high-voltage control box will also increase, which will cause the internal temperature of the high-voltage control box to also increase. If the high-voltage control box cannot conduct the internal heat away in time, the internal environment and component temperatures of the high-voltage control box will become even higher. Excessive temperature rise of the high-voltage control box will not only affect the service life of the components themselves, but will also cause system high-temperature failures, system safety risk failures, etc. Technical issues

[0005] In related technologies, high-voltage control boxes usually use natural heat dissipation or air cooling, but the heat dissipation effect is poor and the temperature rise inside the box is still high, which can easily cause the high-voltage control box to overheat and affect the life of components inside the high-voltage control box. Technical Solutions

[0006] In a first aspect, the present application provides a high-voltage control box, comprising:

[0007] The box body is provided with a receiving cavity and a first opening;

[0008] A first bracket is arranged in the accommodating cavity and is used to install the component group;

[0009] a cooling member, the cooling member being arranged at the first opening;

[0010] The heat-conducting component is arranged between the cooling element and the first bracket.

[0011] In a second aspect, the present application provides an energy storage system, including a battery cluster and a high-voltage control box provided in the present application; the battery cluster is connected to the high-voltage control box. Beneficial effects

[0012] The beneficial effects of the high-voltage control box and energy storage system provided by the present application are as follows: the high-voltage control box includes a box body, a first bracket, a cooling member and a heat-conducting component, the box body is provided with a accommodating cavity and a first opening; the first bracket is provided in the accommodating cavity, and the first bracket is used to install a component group; the cooling member is provided in the first opening; the heat-conducting component is fittedly arranged between the cooling member and the first bracket, so as to improve the heat dissipation efficiency of the component group in the high-voltage control box; the present application arranges the first bracket in the box body, installs and sets the component group through the first bracket, thereby achieving the installation and fixation of the component group, and arranges the heat-conducting component between the first bracket and the cooling member, so that the heat generated by the component group is transferred to the cooling member through the heat-conducting component, thereby achieving cooling and heat dissipation of the component group on the first bracket, thereby improving the heat dissipation effect in the high-voltage control box, effectively reducing the internal temperature rise of the high-voltage control box, making the operating conditions in the box stable, extending the service life of the components, and reducing system failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] FIG1 is a schematic diagram of the exploded structure of the high-voltage control box provided in the present application from a first perspective;

[0014] FIG2 is a schematic diagram of the exploded structure of the high-voltage control box provided by the present application from a second perspective;

[0015] FIG3 is a schematic diagram of a partial structure of a high-voltage control box provided in this application;

[0016] FIG4 is a schematic diagram of a partially exploded structure of a high-voltage control box provided by the present application from a first perspective;

[0017] FIG5 is a schematic diagram of a partially exploded structure of the high-voltage control box provided by the present application from a second perspective;

[0018] FIG6 is a schematic cross-sectional view of the high-voltage control box provided in this application;

[0019] FIG7 is an enlarged structural diagram of point A in FIG6 .

[0020] Reference numerals:

[0021] 10. Box; 110. Accommodating cavity; 120. First opening; 20. First bracket; 30. Cooling element; 310. Flow channel assembly; 320. Liquid inlet; 330. Liquid outlet; 40. Heat conducting assembly; 410. Heat conducting plate; 420. Second heat dissipation element; 60. Component assembly; 610. Relay assembly; 612. Pre-charge relay; 614. Positive relay; 616. Negative relay; 620. Fuse assembly; 622. Positive fuse; 624. Negative fuse; 630. Shunt; 640. Pre-charge resistor; 650. Electrical connection Connector; 70, mounting cavity group; 710, first mounting cavity; 712, first mounting sub-cavity; 714, second mounting sub-cavity; 716, third mounting sub-cavity; 720, second mounting cavity; 722, fourth mounting sub-cavity; 724, fifth mounting sub-cavity; 730, third mounting cavity; 740, fourth mounting cavity; 750, fifth mounting cavity; 810, first through hole; 820, second through hole; 830, third through hole; 840, fourth through hole; 850, fifth through hole; 860, fourth opening; 870, fifth opening; 880, sixth opening. Modes for Carrying Out the Invention

[0022] In one embodiment, as shown in Figures 1 to 4, a high-voltage control box is provided, including a box body 10, a first bracket 20, a cooling member 30 and a heat-conducting assembly 40; the box body 10 is provided with a accommodating cavity 110 and a first opening 120; the first bracket 20 is arranged in the accommodating cavity 110, and the first bracket 20 is used to install a component group 60; the cooling member 30 is arranged in the first opening 120; and the heat-conducting assembly 40 is fitted between the cooling member 30 and the first bracket 20.

[0023] Among them, the box body 10 can be a box body 10 made of metal material, and the shape of the box body 10 can be but not limited to a square. For example, the box body 10 can be a rectangular box body 10. The box body 10 may include an upper cover plate and a side panel assembly, and the side panel assembly can be divided into a front panel, a rear panel, a left panel and a right panel. The front panel, the rear panel, the left panel and the right panel are enclosed to form a accommodating cavity 110, and the upper cover plate is provided on the side panel assembly. Exemplarily, the upper cover plate and the side panel assembly can be connected by screwing, and the front panel, the rear panel, the left panel and the right panel can be connected by welding or screwing. Exemplarily, the front panel is provided with a switch module, a power line interface group and a communication interface group.

[0024] The first opening 120 is located below the side plate assembly and communicates with the accommodating chamber 110. The cooling member 30 covers the first opening 120, forming a sealed space within the accommodating chamber 110. For example, the cooling member 30 can be installed below the side plate assembly by screwing or other means.

[0025] The first bracket 20 is disposed within the accommodating cavity 110 and can be used to mount and secure the component assembly 60. For example, the first bracket 20 can be secured to the cooling element 30 via bolts. In one example, the component assembly 60 can be composed of multiple components that are susceptible to temperature rise. The component assembly 60 can be mounted on the first bracket 20 via a snap-fit ​​mechanism. To enhance the secure mounting of the component assembly 60, the component assembly 60 can also be secured to the first bracket 20 via bolts.

[0026] The heat conducting assembly 40 can be used to transfer heat generated by the component group 60 on the first bracket 20 to the cooling element 30. For example, the first side of the heat conducting assembly 40 is arranged in contact with the first bracket 20, and the component group 60 on the first bracket 20 can be directly or indirectly attached to the first side of the heat conducting assembly 40. For example, considering the different sizes of different components, a heat conducting filler can be provided between the heat conducting assembly 40 and the component group 60, so that the component group 60 can be directly or indirectly attached to the first side of the heat conducting assembly 40. The second side of the heat conducting assembly 40 is attached to the cooling element 30, so that the heat generated by the component group 60 on the first bracket 20 can be transferred to the cooling element 30 through the heat conducting assembly 40, thereby cooling and dissipating the heat of the component group 60.

[0027] The cooling element 30 can be a liquid cooling plate, which is connected to a liquid cooling module. The liquid cooling module transmits coolant to the cooling element 30. The liquid cooling module is also used to recover the coolant after use by the cooling element 30, and re-cool the used coolant and return it to the cooling element 30, thereby achieving continuous transfer of cold energy to the cooling element 30.

[0028] In this embodiment, the housing 10 is provided with a receiving cavity 110 and a first opening 120; a first bracket 20 is provided in the receiving cavity 110, and the first bracket 20 is used to install the component group 60; a cooling member 30 is provided in the first opening 120; and a heat conducting assembly 40 is provided between the cooling member 30 and the first bracket 20, thereby improving the heat dissipation efficiency of the component group 60 in the high-voltage control box. In this embodiment of the application, by providing the first bracket 20 in the housing 10, the component group 60 is installed and provided through the first bracket 20, thereby achieving the installation and fixation of the component group 60; by providing the heat conducting assembly 40 between the first bracket 20 and the cooling member 30, the heat generated by the component group 60 on the first bracket 20 is transferred to the cooling member 30 through the heat conducting assembly 40, thereby achieving the cooling and heat dissipation of the component group 60 on the first bracket 20, thereby improving the heat dissipation effect in the high-voltage control box, effectively reducing the internal temperature rise of the high-voltage control box, stabilizing the operating conditions in the box, extending the service life of the components, and reducing system failures.

[0029] In one embodiment, the high-voltage control box further includes a first heat sink (not shown in the figures), which is disposed between the first bracket 20 and the heat conducting assembly 40 .

[0030] The first heat sink may be, but is not limited to, a thermally conductive gel. For example, by pouring thermally conductive gel between the first bracket 20 and the thermally conductive assembly 40, the thermally conductive gel fills the space between the thermally conductive assembly 40 and the component group 60, and the thermally conductive gel is tightly attached between the thermally conductive assembly 40 and the component group 60. This allows heat generated by the component group 60 on the first bracket 20 to be transferred to the cooling element 30 through the thermally conductive gel and the thermally conductive assembly 40, thereby achieving better cooling and heat dissipation of the component group 60.

[0031] In one embodiment, the first bracket 20 is provided with an installation cavity group 70, and the component group 60 is provided in the installation cavity group 70; the installation cavity group 70 is provided with an opening group, and the first heat sink is filled and provided in the opening group, and the first heat sink is attached between the component group 60 and the thermal conductive assembly 40.

[0032] Mounting cavity group 70 may be comprised of multiple mounting cavities, the number of which is determined by the number of components contained in component group 60. Mounting cavity group 70 is a hollow cavity group, having an opening group disposed adjacent to thermally conductive assembly 40. For example, component group 60 may be fully or partially embedded within mounting cavity group 70. In another example, component group 60 may be disposed adjacent to and above mounting cavity group 70.

[0033] For example, by pouring a first heat sink into the opening group, the first heat sink fills the mounting cavity group 70 until the opening group is completely filled with the first heat sink, thereby making the first side of the first heat sink contact the component group 60, and the second side of the first heat sink contact the thermal conductive assembly 40. As a result, the heat generated by the component group 60 can be transferred to the cooling element 30 through the first heat sink and the thermal conductive assembly 40 in sequence, thereby cooling the component group 60. In addition, by placing the component group 60 in the mounting cavity group 70, the component group 60 is fixed and fixed, and the various components are thermally isolated from each other.

[0034] In one embodiment, as shown in Figure 3, the component group 60 includes a relay group 610 and a fuse group 620; the installation cavity group 70 includes a first installation cavity 710 and a second installation cavity 720; the relay group 610 is arranged in the first installation cavity 710, and the fuse group 620 is arranged in the second installation cavity 720; the first installation cavity 710 is provided with a second opening, and the second installation cavity 720 is provided with a third opening, and the second opening and the third opening are respectively filled with a first heat sink, and the first side of the first heat sink is attached to the relay group 610 and the fuse group 620, and the second side of the first heat sink is attached to the heat conductive component 40.

[0035] The relay group 610 may be composed of multiple relays, and the fuse group 620 may be composed of multiple fuses. The first mounting cavity 710 may be provided with multiple first mounting points, with each relay corresponding to each first mounting point; the second mounting cavity 720 may be provided with multiple second mounting points, with each fuse corresponding to each second mounting point.

[0036] By pouring the first heat sink into the second opening, the first heat sink fills the first mounting cavity 710 until the second opening is completely filled with the first heat sink, thereby causing the first side of the first heat sink to contact the relay assembly 610, and the second side of the first heat sink to contact the thermally conductive component 40. As a result, the heat generated by the relay assembly 610 can be sequentially transferred to the cooling element 30 through the first heat sink and the thermally conductive component 40, thereby cooling and dissipating the relay assembly 610. By pouring the first heat sink into the third opening, the first heat sink fills the second mounting cavity 720 until the third opening is completely filled with the first heat sink, thereby causing the first side of the first heat sink to contact the fuse assembly 620, and the second side of the first heat sink to contact the thermally conductive component 40. As a result, the heat generated by the fuse assembly 620 can be sequentially transferred to the cooling element 30 through the first heat sink and the thermally conductive component 40, thereby cooling and dissipating the fuse assembly 620. In addition, by setting the relay group 610 in the first installation cavity 710 and the fuse group 620 in the second installation cavity 720, the relay group 610 and the fuse group 620 are installed and fixed, and the mutual thermal insulation between the relay group 610 and the fuse group 620 is achieved.

[0037] In one example, as shown in Figures 4 and 5, the relay group 610 includes a pre-charge relay 612, a positive relay 614 and a negative relay 616; the fuse group 620 includes a positive fuse 622 and a negative fuse 624; the first mounting cavity 710 includes a first mounting sub-cavity 712, a second mounting sub-cavity 714 and a third mounting sub-cavity 716; the second mounting cavity 720 includes a fourth mounting sub-cavity 722 and a fifth mounting sub-cavity 724; the pre-charge relay 612 is arranged in the first mounting sub-cavity 712, the positive relay 614 is arranged in the second mounting sub-cavity 714, the negative relay 616 is arranged in the third mounting sub-cavity 716, the positive fuse 622 is arranged in the fourth mounting cavity 740, and the negative fuse 624 is arranged in the fifth mounting sub-cavity 724; the first mounting sub-cavity 712 is provided with a first through hole 810, the second mounting sub-cavity 714 is provided with a second through hole 820, the third mounting sub-cavity 716 is provided with a third through hole 830, and the fourth mounting sub-cavity 724 is provided with a third through hole 830. The fourth mounting sub-cavity 722 is provided with a fourth through hole 840, and the fifth mounting sub-cavity 724 is provided with a fifth through hole 850; the first heat sink is filled into the first mounting sub-cavity 712 through the first through hole 810, so that the first heat sink is attached between the pre-charge relay 612 and the heat-conducting component 40; the first heat sink is filled into the second mounting sub-cavity 714 through the second through hole 820, so that the first heat sink is attached between the positive relay 614 and the heat-conducting component 40; the first heat sink is filled into the third mounting sub-cavity 716 through the third through hole 830, so that the first heat sink is attached between the negative relay 616 and the heat-conducting component 40; the first heat sink is filled into the fourth mounting sub-cavity 722 through the fourth through hole 840, so that the first heat sink is attached between the positive fuse 622 and the heat-conducting component 40; the first heat sink is filled into the fifth mounting sub-cavity 724 through the fifth through hole 850, so that the first heat sink is attached between the negative fuse 624 and the heat-conducting component 40.

[0038] The pre-charge relay 612 is a balancing relay, the positive relay 614 is a positive circuit relay, the negative relay 616 is a negative circuit relay, the positive fuse 622 is a positive circuit fuse, and the negative fuse 624 is a negative circuit fuse.

[0039] The first mounting sub-cavity 712 is a hollow cavity and is used to accommodate the pre-charge relay 612. For example, the bottom of the pre-charge relay 612 can be embedded in the first mounting sub-cavity 712 to achieve positional fixation of the pre-charge relay 612. The second mounting sub-cavity 714 is a hollow cavity and is used to accommodate the positive relay 614. For example, the bottom of the positive relay 614 can be embedded in the second mounting sub-cavity 714 to achieve positional fixation of the positive relay 614. The third mounting sub-cavity 716 is a hollow cavity and is used to accommodate the negative relay 616. For example, the bottom of the negative relay 616 can be embedded in the third mounting sub-cavity 716 to achieve positional fixation of the negative relay 616. The fourth mounting sub-cavity 722 is a hollow cavity and is used to accommodate the positive electrode fuse 622. For example, the bottom of the positive electrode fuse 622 can be embedded in the fourth mounting sub-cavity 722 to achieve positional fixation of the positive electrode fuse 622. The fifth mounting sub-cavity 724 is a hollow cavity and is used to accommodate the negative electrode fuse 624. For example, the bottom of the negative electrode fuse 624 can be embedded in the fifth mounting sub-cavity 724 to achieve positional fixation of the negative electrode fuse 624. Exemplarily, the first mounting sub-cavity 712, the second mounting sub-cavity 714, the third mounting sub-cavity 716, the fourth mounting sub-cavity 722, and the fifth mounting sub-cavity 724 are spaced apart from each other.

[0040] The second opening can be divided into a first through hole 810, a second through hole 820, and a third through hole 830. The first through hole 810 is in communication with the first mounting sub-cavity 712, the second through hole 820 is in communication with the second mounting sub-cavity 714, and the third through hole 830 is in communication with the third mounting sub-cavity 716. By pouring the first heat sink into the first through hole 810, the first heat sink fills the first mounting sub-cavity 712 until the first through hole 810 is completely filled with the first heat sink, thereby causing the first side of the first heat sink to abut against the pre-charge relay 612, and the second side of the first heat sink to abut against the heat conductive component 40. As a result, the heat generated by the pre-charge relay 612 can be transferred to the cooling element 30 through the first heat sink and the heat conductive component 40 in sequence, thereby cooling and dissipating the heat of the pre-charge relay 612. By pouring the first heat sink into the second through hole 820, the first heat sink fills the second mounting sub-cavity 714 until the second through hole 820 is completely filled with the first heat sink, thereby causing the first side of the first heat sink to contact the positive relay 614, and the second side of the first heat sink to contact the thermal conductive component 40. As a result, the heat generated by the positive relay 614 can be transferred to the cooling element 30 through the first heat sink and the thermal conductive component 40 in sequence, thereby cooling and dissipating the positive relay 614. By pouring the first heat sink into the third through hole 830, the first heat sink fills the third mounting sub-cavity 716 until the third through hole 830 is completely filled with the first heat sink. As a result, the first side of the first heat sink contacts the negative relay 616, and the second side of the first heat sink contacts the thermal conductive component 40. As a result, the heat generated by the negative relay 616 can be transferred to the cooling element 30 through the first heat sink and the thermal conductive component 40 in sequence, thereby cooling and dissipating the negative relay 616.

[0041] The third opening can be divided into a fourth through hole 840 and a fifth through hole 850. The fourth through hole 840 is in communication with the fourth mounting sub-cavity 722, and the fifth through hole 850 is in communication with the fifth mounting sub-cavity 724. By pouring the first heat sink into the fourth through hole 840, the first heat sink fills the fourth mounting sub-cavity 722 until the fourth through hole 840 is completely filled with the first heat sink, thereby causing the first side of the first heat sink to abut against the positive fuse 622, and the second side of the first heat sink to abut against the heat conductive component 40. As a result, the heat generated by the positive fuse 622 can be transferred to the cooling element 30 through the first heat sink and the heat conductive component 40 in sequence, thereby cooling and dissipating the positive fuse 622. This improves the heat dissipation effect within the high-voltage control box, effectively reduces the internal temperature rise of the high-voltage control box, stabilizes the operating conditions within the box, extends the service life of each relay and each fuse, and reduces system failures.

[0042] In one embodiment, as shown in Figures 4 and 5, the component group 60 also includes a shunt 630 and a pre-charging resistor 640; the mounting cavity group 70 also includes a third mounting cavity 730 and a fourth mounting cavity 740; the shunt 630 is arranged in the third mounting cavity 730, and the pre-charging resistor 640 is arranged in the fourth mounting cavity 740; the third mounting cavity 730 is provided with a fourth opening 860, and the fourth mounting cavity 740 is provided with a fifth opening 870, and the fourth opening 860 and the fifth opening 870 are respectively filled with a first heat sink, and the first side of the first heat sink is attached to the shunt 630 and the pre-charging resistor 640, and the second side of the first heat sink is attached to the thermal conductive component 40.

[0043] Among them, the pre-charging resistor 640 refers to the balancing resistor. The third mounting cavity 730 is a hollow cavity, and the third mounting cavity 730 is used to accommodate the shunt 630. For example, the bottom of the shunt 630 can be embedded in the third mounting cavity 730 to achieve the limit fixation of the shunt 630. The fourth mounting cavity 740 is a hollow cavity, and the fourth mounting cavity 740 is used to accommodate the pre-charging resistor 640. For example, the bottom of the pre-charging resistor 640 can be embedded in the fourth mounting cavity 740 to achieve the limit fixation of the pre-charging resistor 640. Exemplarily, the third mounting cavity 730 and the fourth mounting cavity 740 are spaced apart from each other.

[0044] The fourth opening 860 is in communication with the third mounting cavity 730, and the fifth opening 870 is in communication with the fourth mounting cavity 740. By pouring the first heat sink into the fourth opening 860, the first heat sink fills the third mounting cavity 730 until the fourth opening 860 is completely filled with the first heat sink. This causes the first side of the first heat sink to abut against the diverter 630, and the second side of the first heat sink to abut against the heat conducting assembly 40. As a result, the heat generated by the diverter 630 can be transferred to the cooling element 30 through the first heat sink and the heat conducting assembly 40 in sequence, thereby cooling the diverter 630. By pouring the first heat sink into the fifth opening 870, the first heat sink fills the fourth installation cavity 740 until the fifth opening 870 is filled with the first heat sink, so that the first side of the first heat sink fits the pre-charging resistor 640, and the second side of the first heat sink fits the heat conducting component 40, so that the heat generated by the pre-charging resistor 640 can be transferred to the cooling component 30 through the first heat sink and the heat conducting component 40 in turn, realizing the cooling and heat dissipation of the pre-charging resistor 640, effectively reducing the temperature rise of the pre-charging resistor 640 and the shunt 630, making the operating conditions in the box stable, extending the service life of the pre-charging resistor 640 and the shunt 630, and reducing system failures.

[0045] In one embodiment, as shown in Figures 4 and 5, the component group 60 also includes an electrical connector 650; the mounting cavity group 70 also includes a fifth mounting cavity 750; the electrical connector 650 is arranged in the fifth mounting cavity 750; the fifth mounting cavity 750 is provided with a sixth opening 880, and the sixth opening 880 is filled with a first heat sink, and the first side of the first heat sink is attached to the electrical connector 650, and the second side of the first heat sink is attached to the thermal conductive component 40.

[0046] The electrical connector 650 may be, but is not limited to, a copper busbar. The fifth installation cavity 750 is a hollow cavity, and the electrical connector 650 may be disposed above the fifth installation cavity 750 .

[0047] The sixth opening 880 is connected to the fifth installation cavity 750. By pouring the first heat sink into the sixth opening 880, the first heat sink fills the fifth installation cavity 750 until the sixth opening 880 is filled with the first heat sink, so that the first side of the first heat sink fits the electrical connector 650, and the second side of the first heat sink fits the heat conductive component 40, so that the heat generated by the electrical connector 650 can be transferred to the cooling component 30 through the first heat sink and the heat conductive component 40 in turn, realizing cooling and heat dissipation of the electrical connector 650, effectively reducing the temperature rise of the electrical connector 650, making the operating conditions in the box stable, reducing the heat transfer of components connecting the electrical connector 650, and reducing system failures.

[0048] In one embodiment, as shown in Figures 1 and 2, the heat conduction assembly 40 includes a heat conduction plate 410 and a second heat sink 420; the heat conduction plate 410 is attached to the first bracket 20; the second heat sink 420 is attached between the cooling element 30 and the heat conduction plate 410.

[0049] The heat conducting plate 410 may be, but is not limited to, an aluminum plate, and the second heat dissipating element 420 may be, but is not limited to, a heat conducting silicone pad.

[0050] By fitting the second heat sink 420 between the cooling element 30 and the heat conducting plate 410, the second heat sink 420 is in full contact with the cooling element 30 and the heat conducting plate 410 respectively, and the heat of the component group 60 can be transferred to the cooling element 30 through the heat conducting plate 410 and the second heat sink 420 in turn, thereby cooling and dissipating the component group 60 on the first bracket 20, thereby improving the heat dissipation effect in the high-voltage control box, effectively reducing the internal temperature rise of the high-voltage control box, making the operating conditions in the box stable, extending the service life of the components, and reducing system failures.

[0051] In one embodiment, as shown in FIG. 1 , FIG. 6 and FIG. 7 , the cooling element 30 is provided with a flow channel group 310 , a liquid inlet 320 and a liquid outlet 330 ; the flow channel group 310 is connected between the liquid inlet 320 and the liquid outlet 330 .

[0052] The flow channel group 310 may be composed of a plurality of first flow channels, and each first flow channel may be connected in series and / or in parallel.

[0053] Exemplarily, the liquid inlet 320 is connected to the output end of the liquid cooling module, and the liquid outlet 330 is connected to the input end of the liquid cooling module. When the liquid cooling module is powered on, the liquid cooling module transmits coolant to the cooling element 30, so that the coolant flows in the flow channel group 310, and takes away the heat transferred from the component group 60 and then returns to the liquid cooling module. After the recovered coolant is cooled by the liquid cooling module, it is re-transmitted to the cooling element 30, thereby realizing continuous transmission of cold to the cooling element 30.

[0054] An embodiment of the present application further provides an energy storage system, including a battery cluster and a high-voltage control box provided in an embodiment of the present application; the battery cluster is connected to the high-voltage control box.

[0055] The battery cluster can be composed of multiple battery packs connected in series and / or parallel. One end of the high-voltage control box is connected to the battery cluster, and the other end is connected to the energy storage converter, thereby enabling the high-voltage control box to control the charging and discharging of the battery cluster.

[0056] For the specific description of the high-voltage control box, please refer to the specific description of the high-voltage control box in the embodiments of the present application, which will not be repeated here.

[0057] The high-voltage control box includes a box body, a first bracket, a cooling member and a heat-conducting component. The box body is provided with a accommodating cavity and a first opening; the first bracket is provided in the accommodating cavity, and the first bracket is used to install the component group 60; the cooling member is provided in the first opening; the heat-conducting component is fitted between the cooling member and the first bracket, so as to improve the heat dissipation efficiency of the component group 60 in the high-voltage control box.

[0058] In this embodiment, a first bracket is provided in the box body of the high-voltage control box, and the component group 60 is installed and provided through the first bracket, so that the component group 60 is installed and fixed. By providing a heat-conducting component between the first bracket and the cooling member, the heat transmitted by the component group 60 on the first bracket is transmitted to the cooling member through the heat-conducting component, so that the component group 60 on the first bracket is cooled and dissipated, thereby improving the heat dissipation effect in the high-voltage control box, effectively reducing the internal temperature rise of the high-voltage control box, making the operating conditions in the box stable, extending the service life of the components, and reducing system failures.

[0059] It should be noted that the high-voltage control box may also include components such as a battery cluster management unit. The specific high-voltage control box may include more components than those described in the embodiments of the present application, or combine certain components, or have a different component arrangement.

Claims

1. A high-voltage control box, comprising: a box body, wherein the box body is provided with a receiving cavity and a first opening; a first bracket, the first bracket being arranged in the accommodating cavity and being used for mounting a component group; a cooling member, the cooling member being disposed at the first opening; A heat-conducting component is arranged between the cooling element and the first bracket.

2. The high voltage control box according to claim 1, wherein: The first bracket is provided with a mounting cavity group, and the component group is arranged in the mounting cavity group. 3 . The high-voltage control box according to claim 2 , further comprising a first heat sink, wherein the first heat sink is disposed between the first bracket and the heat conducting assembly.

4. The high voltage control box according to claim 3, wherein: The installation cavity group is provided with an opening group, the first heat sink is filled and arranged in the opening group, and the first heat sink is attached between the component group and the heat conduction assembly.

5. The high voltage control box according to claim 4, wherein: The component group includes a relay group and a fuse group; the installation cavity group includes a first installation cavity and a second installation cavity; the relay group is arranged in the first installation cavity, and the fuse group is arranged in the second installation cavity; The first mounting cavity is provided with a second opening, the second mounting cavity is provided with a third opening, the second opening and the third opening are respectively filled with the first heat sink, and the first side surface of the first heat sink is attached to the relay group and the fuse group, and the second side surface of the first heat sink is attached to the heat conductive component.

6. The high voltage control box according to claim 5, wherein: The relay group includes a pre-charge relay, a positive relay and a negative relay; the fuse group includes a positive fuse and a negative fuse; the first mounting cavity includes a first mounting sub-cavity, a second mounting sub-cavity and a third mounting sub-cavity; the second mounting cavity includes a fourth mounting sub-cavity and a fifth mounting sub-cavity; the pre-charge relay is arranged in the first mounting sub-cavity, the positive relay is arranged in the second mounting sub-cavity, the negative relay is arranged in the third mounting sub-cavity, the positive fuse is arranged in the fourth mounting cavity, and the negative fuse is arranged in the fifth mounting sub-cavity; The first mounting sub-cavity is provided with a first through hole, the second mounting sub-cavity is provided with a second through hole, the third mounting sub-cavity is provided with a third through hole, the fourth mounting sub-cavity is provided with a fourth through hole, and the fifth mounting sub-cavity is provided with a fifth through hole; Fill the first heat sink into the first mounting sub-cavity through the first through-hole so that the first heat sink fits between the pre-charge relay and the heat-conducting component; fill the first heat sink into the second mounting sub-cavity through the second through-hole so that the first heat sink fits between the positive relay and the heat-conducting component; fill the first heat sink into the third mounting sub-cavity through the third through-hole so that the first heat sink fits between the negative relay and the heat-conducting component; Filling the first heat sink into the fourth mounting sub-cavity through the fourth through hole so that the first heat sink is attached between the positive fuse and the heat conducting component; The first heat sink is filled into the fifth mounting sub-cavity through the fifth through hole, so that the first heat sink is attached between the negative electrode fuse and the heat conducting component.

7. The high voltage control box according to claim 4, wherein: The component group also includes a shunt and a pre-charge resistor; The mounting cavity group further includes a third mounting cavity and a fourth mounting cavity; the shunt is arranged in the third mounting cavity, and the pre-charging resistor is arranged in the fourth mounting cavity; The third mounting cavity is provided with a fourth opening, the fourth mounting cavity is provided with a fifth opening, the fourth opening and the fifth opening are respectively filled with the first heat sink, and the first side surface of the first heat sink is attached to the shunt and the pre-charging resistor, and the second side surface of the first heat sink is attached to the thermal conductive component.

8. The high voltage control box according to claim 4, wherein: The component group further includes an electrical connector; The installation cavity group further includes a fifth installation cavity; the electrical connector is arranged in the fifth installation cavity; The fifth mounting cavity is provided with a sixth opening, the sixth opening is filled with the first heat sink, a first side surface of the first heat sink is attached to the electrical connector, and a second side surface of the first heat sink is attached to the heat conducting component.

9. The high voltage control box according to any one of claims 1 to 8, wherein: The heat conduction assembly includes a heat conduction plate and a second heat sink; The heat conducting plate is attached to the first bracket; the second heat dissipating element is attached to between the cooling element and the heat conducting plate.

10. The high voltage control box according to claim 1, wherein: The cooling element is provided with a flow channel group, a liquid inlet and a liquid outlet; the flow channel group is connected between the liquid inlet and the liquid outlet.

11. An energy storage system comprising a battery cluster and a high-voltage control box according to any one of claims 1 to 10; the battery cluster is connected to the high-voltage control box.

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