High-voltage control box and energy storage system

Abstract

The utility model relates to a high-voltage control box and an energy storage system. A box body in the high-voltage control box is provided with an accommodating cavity and a first opening; the first bracket is arranged in the accommodating cavity and is used for mounting a component group; the cooling piece is arranged at the first opening; the heat conduction assembly is arranged between the cooling piece and the first support in an attached mode, and the heat dissipation efficiency of the component set in the high-voltage control box is improved. The first support is arranged in the box body, the component set is installed through the first support, installation and fixation of the component set are achieved, the heat conduction assembly is arranged between the first support and the cooling piece, and then heat generated by the component set on the first support is transmitted to the cooling piece through the heat conduction assembly. Cooling and heat dissipation of the component group on the first support are achieved, the heat dissipation effect in the high-voltage control box is improved, the internal temperature rise of the high-voltage control box is reduced, the operation condition in the box is stable, the service life of components is prolonged, and system faults are reduced.

Description

Technical Field

[0001] 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

[0002] The high-voltage control box is also called a high-voltage box or a high-voltage control box. The high-voltage control box is an important component for the management of the high-voltage power circuit of the energy storage system. It is an intermediate unit connecting the battery cluster and the energy storage inverter. The high-voltage control box has the functions of battery cluster voltage, battery cluster current collection, battery cluster circuit contactor control and protection.

[0003] As the requirements for battery product operating conditions (charge and discharge rates, ambient temperature, operating temperature, etc.) become higher and higher, 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 increase. If the high-voltage control box cannot conduct the internal heat out in time, the internal environment and component temperatures of the high-voltage control box will be higher. Excessive temperature rise of the high-voltage box will not only affect the service life of the components themselves, but also cause system high-temperature failures, system safety risk failures, etc.

[0004] In the related art, the high-voltage control box usually adopts 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 the components inside the high-voltage control box. Utility Model Content

[0005] Based on this, it is necessary to provide a high-voltage control box and energy storage system that can improve the heat dissipation effect, effectively reduce the internal temperature rise of the high-voltage control box, stabilize the operating conditions inside the box, extend the service life of components, and reduce system failures in response to the problems existing in the above-mentioned existing high-voltage control boxes.

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

[0007] A box body, wherein the box body is provided with a containing cavity and a first opening;

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

[0009] A cooling member, the cooling member is arranged at the first opening;

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

[0011] In one of the embodiments, the first bracket is provided with a mounting cavity group, and the component group is arranged in the mounting cavity group.

[0012] In one of the embodiments, the high voltage control box further includes a first heat sink, and the first heat sink is disposed between the first bracket and the heat conducting component.

[0013] In one of the embodiments, 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 conducting assembly.

[0014] In one embodiment, 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;

[0015] The first installation cavity is provided with a second opening, the second installation cavity is provided with a third opening, 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 and the fuse group, and the second side of the first heat sink is attached to the heat conductive component.

[0016] In one embodiment, 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 sub-cavity, and the negative fuse is arranged in the fifth mounting sub-cavity;

[0017] 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;

[0018] 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;

[0019] The first heat sink is filled into the fourth mounting sub-cavity through the fourth through hole so that the first heat sink is attached between the positive pole fuse and the heat conductive 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 pole fuse and the heat conductive component.

[0020] In one embodiment, the component group further includes a shunt and a pre-charge resistor;

[0021] 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;

[0022] 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 a 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.

[0023] In one of the embodiments, the component group further includes an electrical connector;

[0024] The installation cavity group further includes a fifth installation cavity; the electrical connection member is arranged in the fifth installation cavity;

[0025] The fifth installation cavity is provided with a sixth opening, and the sixth opening is filled with a first heat sink, and 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.

[0026] In one of the embodiments, the heat conducting assembly includes a heat conducting plate and a second heat dissipating member;

[0027] The heat conducting plate is arranged on the first bracket; the second heat dissipating element is arranged between the cooling element and the heat conducting plate.

[0028] In one embodiment, 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.

[0029] In a second aspect, the present application provides an energy storage system, including a battery cluster and a high-voltage control box as described above; the battery cluster is connected to the high-voltage control box.

[0030] One of the above technical solutions has the following advantages and beneficial effects:

[0031] The above-mentioned 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 receiving cavity and a first opening; the first bracket is provided in the receiving 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 provided 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 achieves the installation and fixation of the component group by providing a first bracket in the box body, installing and setting the component group through the first bracket, and achieving cooling and heat dissipation of the component group on the first bracket by providing 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 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the exploded structure of the high-voltage control box in the embodiment of the present application from a first perspective;

[0033] Figure 2 This is a schematic diagram of the exploded structure of the high-voltage control box from a second perspective in an embodiment of the present application;

[0034] Figure 3 This is a schematic diagram of the partial structure of the high-voltage control box in the embodiment of the present application;

[0035] Figure 4 This is a schematic diagram of a partially exploded structure of a high-voltage control box from a first perspective in an embodiment of the present application;

[0036] Figure 5 This is a schematic diagram of a partially exploded structure of a high-voltage control box from a second perspective in an embodiment of the present application;

[0037] Figure 6 This is a schematic cross-sectional structure diagram of a high-voltage control box in an embodiment of the present application;

[0038] Figure 7 for Figure 6 Schematic diagram of the enlarged structure at point A in the middle.

[0039] Reference numerals:

[0040] 10. Box; 110. Accommodating cavity; 120. First opening; 20. First bracket; 30. Cooling element; 310. Flow channel group; 320. Liquid inlet; 330. Liquid outlet; 40. Heat conducting component; 410. Heat conducting plate; 420. Second heat dissipating element; 610. Relay group; 612. Pre-charge relay; 614. Positive relay; 616. Negative relay; 620. Fuse group; 622. Positive fuse; 624. Negative fuse; 630. Shunt; 640. Pre-charge resistor; 650. Electrical connection Connector; 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. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0042] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover inclusions that are not listed. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0043] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0044] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0045] In addition, the term "plurality" shall mean two or more.

[0046] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0047] In one embodiment, Figures 1 to 3 As shown, a high-voltage control box is provided, including a box body 10, a first bracket 20, a cooling member 30 and a heat-conducting component 40; the box body 10 is provided with a container cavity 110 and a first opening 120; the first bracket 20 is arranged in the container cavity 110, and the first bracket 20 is used to install a component group; the cooling member 30 is arranged in the first opening 120; the heat-conducting component 40 is arranged between the cooling member 30 and the first bracket 20.

[0048] 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 enclose a container 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.

[0049] The first opening 120 is located below the side plate assembly and communicates with the container cavity 110. The cooling member 30 covers the first opening 120, so that a closed space is formed in the container cavity 110. For example, the cooling member 30 can be disposed below the side plate assembly by screwing or the like.

[0050] The first bracket 20 is disposed in the container cavity 110. The first bracket 20 can be used to install and fix the component group. For example, the first bracket 20 can be fixed to the cooling member 30 by bolts. In one example, the component group can be composed of a plurality of components that are prone to temperature rise. The component group can be set on the first bracket 20 by a clamping method. In order to further enhance the installation firmness of the component group, the component group can also be fixed to the first bracket 20 by bolts.

[0051] The heat conducting component 40 can be used to transfer the heat generated by the component group on the first bracket 20 to the cooling member 30. For example, the first side of the heat conducting component 40 is attached to the first bracket 20, and the component group on the first bracket 20 can be attached to the first side of the heat conducting component 40 directly or indirectly. For example, considering that the sizes of different components are different, a heat conducting filler can be set between the heat conducting component 40 and the component group, so that the component group can be directly or indirectly tightly attached to the first side of the heat conducting component 40, and the second side of the heat conducting component 40 is attached to the cooling member 30, so that the heat generated by the component group on the first bracket 20 can be transferred to the cooling member 30 through the heat conducting component 40, so as to achieve cooling and heat dissipation of the component group.

[0052] The cooling element 30 may 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 then transmit it back to the cooling element 30, thereby realizing continuous transfer of cold to the cooling element 30.

[0053] In the above-mentioned embodiment, the box body 10 is provided with a container cavity 110 and a first opening 120; the first bracket 20 is provided in the container cavity 110, and the first bracket 20 is used to install the component group; the cooling member 30 is provided in the first opening 120; the heat-conducting component 40 is provided between the cooling member 30 and the first bracket 20, 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 20 in the box body 10, and installs and sets the component group through the first bracket 20, so as to achieve the installation and fixation of the component group, and arranges the heat-conducting component 40 between the first bracket 20 and the cooling member 30, so that the heat generated by the component group on the first bracket 20 is transferred to the cooling member 30 through the heat-conducting component 40, so as to achieve the cooling and heat dissipation of the component group 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.

[0054] In one embodiment, the high voltage control box further includes a first heat sink (not shown in the figure), and the first heat sink is disposed between the first bracket 20 and the heat conducting assembly 40 .

[0055] 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 component 40, the thermally conductive gel fills the space between the thermally conductive component 40 and the component group, and the thermally conductive gel fits tightly between the thermally conductive component 40 and the component group, so that the heat generated by the component group on the first bracket 20 can be transferred to the cooling element 30 through the thermally conductive gel and the thermally conductive component 40 in turn, thereby achieving better cooling and heat dissipation of the component group.

[0056] In one embodiment, the first bracket 20 is provided with an installation cavity group, and the component group is arranged in the installation cavity group; the installation cavity group is provided with an opening group, and 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 conductive assembly 40.

[0057] The mounting cavity group may be composed of a plurality of mounting cavities, and the number of mounting cavities may be determined by the number of components included in the component group. The mounting cavity group is a hollow cavity group, and the mounting cavity group is provided with an opening group, and the opening group is adjacent to the heat conducting component 40. Exemplarily, the component group may be fully or partially embedded in the mounting cavity group; in another example, the component group may also be arranged adjacent to the top of the mounting cavity group.

[0058] For example, by pouring the first heat sink into the opening group, the first heat sink fills the installation cavity group until the opening group is filled with the first heat sink, so that the first side of the first heat sink fits the component group, and the second side of the first heat sink fits the heat conductive component 40, so that the heat generated by the component group can be transferred to the cooling element 30 through the first heat sink and the heat conductive component 40 in sequence, so as to achieve cooling and heat dissipation of the component group. In addition, by setting the component group in the installation cavity group, the component group is installed and fixed, and the mutual thermal insulation between the components is achieved.

[0059] In one embodiment, Figure 3 As shown, the component group includes a relay group 610 and a fuse group 620; the installation cavity group 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 surface of the first heat sink is attached to the relay group 610 and the fuse group 620, and the second side surface of the first heat sink is attached to the heat conductive component 40.

[0060] The relay group 610 may be composed of a plurality of relays, and the fuse group 620 may be composed of a plurality of fuses. The first mounting cavity 710 may be provided with a plurality of first mounting points, and each relay is provided in a one-to-one correspondence with each first mounting point; the second mounting cavity 720 may be provided with a plurality of second mounting points, and each fuse is provided in a one-to-one correspondence with each second mounting point.

[0061] By pouring the first heat sink into the second opening, the first heat sink fills the first installation cavity 710 until the second opening is filled with the first heat sink, so that the first side of the first heat sink fits the relay group 610, and the second side of the first heat sink fits the heat conductive component 40, so that the heat generated by the relay group 610 can be transferred to the cooling member 30 through the first heat sink and the heat conductive component 40 in sequence, thereby achieving cooling and heat dissipation of the relay group 610. By pouring the first heat sink into the third opening, the first heat sink fills the second installation cavity 720 until the third opening is filled with the first heat sink, so that the first side of the first heat sink fits the fuse group 620, and the second side of the first heat sink fits the heat conductive component 40, so that the heat generated by the fuse group 620 can be transferred to the cooling member 30 through the first heat sink and the heat conductive component 40 in sequence, thereby achieving cooling and heat dissipation of the fuse group 620. In addition, by disposing 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 relay group 610 and the fuse group 620 are thermally isolated from each other.

[0062] In one example, if Figure 4 and Figure 5 As shown, 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 sub-cavity 722, 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 7 22 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.

[0063] The pre-charge relay 612 refers to a balancing relay, the positive relay 614 refers to a positive loop relay, and the negative relay 616 refers to a negative loop relay. The positive fuse 622 refers to a positive loop fuse, and the negative fuse 624 refers to a negative loop fuse.

[0064] The first mounting sub-cavity 712 is a hollow cavity, and is used to accommodate the pre-filling relay 612. For example, the bottom of the pre-filling relay 612 can be embedded in the first mounting sub-cavity 712 to achieve the limit fixation of the pre-filling 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 the limit 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 the limit 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 the position-limiting 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 the position-limiting 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.

[0065] 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 connected to the first mounting sub-cavity 712, the second through hole 820 is connected to the second mounting sub-cavity 714, and the third through hole 830 is connected to 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 filled with the first heat sink, so that the first side of the first heat sink fits the pre-charge relay 612, and the second side of the first heat sink fits the heat conductive component 40, so that the heat generated by the pre-charge relay 612 can be transferred to the cooling component 30 through the first heat sink and the heat conductive component 40 in sequence, so as to achieve cooling and heat dissipation 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 filled with the first heat sink, so that the first side of the first heat sink fits the positive relay 614, and the second side of the first heat sink fits the heat conductive component 40, so that the heat generated by the positive relay 614 can be transferred to the cooling component 30 through the first heat sink and the heat conductive component 40 in sequence, thereby achieving cooling and heat dissipation of 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 filled with the first heat sink, so that the first side of the first heat sink fits the negative relay 616, and the second side of the first heat sink fits the heat conductive component 40, so that the heat generated by the negative relay 616 can be transferred to the cooling component 30 through the first heat sink and the heat conductive component 40 in sequence, thereby achieving cooling and heat dissipation of the negative relay 616.

[0066] The third opening can be divided into a fourth through hole 840 and a fifth through hole 850, wherein the fourth through hole 840 is connected to the fourth mounting sub-cavity 722, and the fifth through hole 850 is connected to 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 filled with the first heat sink, so that the first side of the first heat sink fits the positive electrode fuse 622, and the second side of the first heat sink fits the heat conductive component 40, so that the heat generated by the positive electrode fuse 622 can be transferred to the cooling element 30 through the first heat sink and the heat conductive component 40 in turn, so as to realize cooling and heat dissipation of the positive electrode fuse 622, 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 each relay and each fuse, and reducing system failures.

[0067] In one embodiment, Figure 4 and Figure 5As shown, the component group also includes a shunt 630 and a pre-charging resistor 640; the mounting cavity group 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 a first side surface of the first heat sink is attached to the shunt 630 and the pre-charging resistor 640, and a second side surface of the first heat sink is attached to the thermal conductive component 40.

[0068] 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.

[0069] 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 filled with the first heat sink, so that the first side of the first heat sink fits the diverter 630, and the second side of the first heat sink fits the heat conductive component 40, so that the heat generated by the diverter 630 can be transferred to the cooling element 30 through the first heat sink and the heat conductive component 40 in sequence, thereby realizing cooling and heat dissipation of 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 conductive component 40, so that the heat generated by the pre-charging resistor 640 can be transferred to the cooling element 30 through the first heat sink and the heat conductive component 40 in turn, thereby realizing 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.

[0070] In one embodiment, Figure 4 and Figure 5As shown, the component group also includes an electrical connector 650; the mounting cavity group 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.

[0071] 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 .

[0072] The sixth opening 880 is connected to the fifth mounting cavity 750. The first heat sink is poured into the sixth opening 880, and the first heat sink fills the fifth mounting 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. Therefore, 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, thereby realizing cooling and heat dissipation of the electrical connector 650, effectively reducing the temperature rise of the electrical connector 650, stabilizing the operating conditions in the box, reducing heat transfer between components connecting the electrical connector 650, and reducing system failures.

[0073] In one embodiment, Figure 1 and Figure 2 As shown, the heat conduction assembly 40 includes a heat conduction plate 410 and a second heat sink 420 ; the heat conduction plate 410 is disposed in close contact with the first bracket 20 ; and the second heat sink 420 is disposed in close contact with the cooling element 30 and the heat conduction plate 410 .

[0074] The heat conducting plate 410 may be, but not limited to, an aluminum plate, and the second heat sink 420 may be, but not limited to, a heat conducting silicone pad.

[0075] 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 can be transferred to the cooling element 30 through the heat conducting plate 410 and the second heat sink 420 in sequence, so as to cool and dissipate the heat of the component group 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.

[0076] In one embodiment, Figure 1 , Figure 6 and Figure 7As shown, 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 .

[0077] The flow channel group 310 may be composed of a plurality of first flow channels, and each of the first flow channels may be connected in series and / or in parallel.

[0078] 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 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.

[0079] In one embodiment, an energy storage system is provided, comprising a battery cluster and a high-voltage control box as described above; the battery cluster is connected to the high-voltage control box.

[0080] The battery cluster can be composed of several battery packs connected in series and / or in parallel. One end of the high-voltage control box is connected to the battery cluster, and the other end of the high-voltage control box is connected to the energy storage converter, so that the high-voltage control box can realize the charge and discharge control of the battery cluster.

[0081] For the specific description of the high voltage control box, please refer to the specific description of the high voltage control box in the above embodiment, which will not be repeated here.

[0082] 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 arranged in the accommodating cavity, and the first bracket is used to install a component group; the cooling member is arranged 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.

[0083] In the above embodiment, a first bracket is provided in the box body of the high-voltage control box, and a component group is installed and set through the first bracket to achieve installation and fixation of the component group. A heat-conducting component is provided between the first bracket and the cooling element, and the heat transmitted by the component group on the first bracket is transmitted to the cooling element through the heat-conducting component, so that the component group 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, stabilizing the operating conditions in the box, extending the service life of the components, and reducing system failures.

[0084] It should be noted that the high voltage control box may also include components such as a battery cluster management unit, and the specific high voltage control box may include more components than those described in the above embodiments, or combine certain components, or have a different component arrangement.

[0085] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0086] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

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

2. The high voltage control box according to claim 1, characterized in that: 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, characterized in that: It also includes a first heat sink, which is arranged between the first bracket and the heat conduction component.

4. The high voltage control box according to claim 3, characterized in that: 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, characterized in that: 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 installation cavity is provided with a second opening, the second installation 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, characterized in that: 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 sub-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 electrode 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, characterized in that: The component group also includes a shunt and a pre-charge resistor; The installation cavity group further includes a third installation cavity and a fourth installation cavity; the shunt is arranged in the third installation cavity, and the pre-charging resistor is arranged in the fourth installation 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, characterized in that: The component group also includes an electrical connector; The installation cavity group further includes a fifth installation cavity; the electrical connection member is arranged in the fifth installation cavity; The fifth installation 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, characterized in that: The heat conduction assembly comprises a heat conduction plate and a second heat sink; The heat conducting plate is disposed in close contact with the first bracket; and the second heat dissipating element is disposed in close contact with the cooling element and the heat conducting plate.

10. The high voltage control box according to claim 1, characterized in that: 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, characterized in that: It comprises a battery cluster and a high-voltage control box as described in any one of claims 1 to 10; the battery cluster is connected to the high-voltage control box.

Images