High-voltage distribution box and industrial and commercial energy storage device

Abstract

The invention discloses a high-voltage distribution box and an industrial and commercial energy storage device, and relates to the technical field of energy storage. The high-voltage distribution box comprises an L-shaped box body, a confluence module and a high-voltage module, the L-shaped box body is provided with an inner cavity, the confluence module and the high-voltage module are both installed in the inner cavity of the L-shaped box body, and a first interval is formed between the confluence module and the high-voltage module. The high-voltage distribution box disclosed by the invention is compact in structure, simple in wiring, low in manufacturing cost, and smaller in occupied arrangement space when being applied to industrial and commercial energy storage devices.

Description

Technical Field

[0001] The present application relates to the field of energy storage technology, and in particular to a high-voltage distribution box and an industrial and commercial energy storage device. Background Art

[0002] The high-voltage distribution box is an important device in the high-voltage power system, which is mainly used to receive high-voltage electric energy and distribute it to various conversion stations or load centers. In the related technology, the high-voltage distribution box is assembled from two parts: the high-voltage box and the distribution box. The high-voltage box and the distribution box are designed and assembled separately, and then connected together with electrical connecting wires.

[0003] However, the high-voltage distribution box products in the related art are large in size and have high manufacturing costs. In addition, since additional wiring is required between the two chassis, the assembly process is complicated and the wiring is easily disordered. Summary of the invention

[0004] In view of this, the present application provides a high-voltage distribution box and an industrial and commercial energy storage device, which has a compact structure, simple wiring, and reduced manufacturing cost, and occupies a smaller layout space when applied to industrial and commercial energy storage devices. The present application specifically adopts the following technical solutions:

[0005] A first aspect of an embodiment of the present application provides a high-voltage distribution box, including an L-shaped box body, a busbar module and a high-voltage module;

[0006] The L-shaped box has an inner cavity, the confluence module and the high-voltage module are both installed in the inner cavity of the L-shaped box, and a first interval is provided between the confluence module and the high-voltage module.

[0007] Optionally, along the length direction of the L-shaped box, the inner cavity of the L-shaped box includes a first chamber and a second chamber that are connected, and the height of the first chamber is greater than the height of the second chamber;

[0008] The confluence module is located in the first chamber, and the high-voltage module is located in the second chamber.

[0009] Optionally, the high-voltage distribution box includes a switching power supply, and the bus module and the high-voltage module share the same switching power supply.

[0010] Optionally, the switching power supply is located in the second chamber.

[0011] Optionally, the L-shaped box body comprises a first L-shaped box plate and a second L-shaped box plate spaced opposite to each other in a width direction, and a bottom plate and a top plate spaced opposite to each other in a height direction, wherein the bottom plate is a straight plate and the top plate is a Z-shaped plate;

[0012] The two sides of the bottom plate are respectively connected to the same side edges of the first L-shaped box plate and the second L-shaped box plate, and the two sides of the top plate are respectively connected to the other side edges of the first L-shaped box plate and the second L-shaped box plate.

[0013] Optionally, the busbar module includes a first input terminal assembly, a busbar switch, a first conductive bar, and at least one of an electric meter, a socket, and a functional switch assembly;

[0014] The first input terminal assembly is mounted on the first L-shaped box plate;

[0015] The busbar switch is mounted on the bottom plate, and the first conductive bar is located on a side of the busbar switch away from the first input terminal assembly and is connected to the busbar switch;

[0016] The electric meter, the socket and the functional switch assembly are mounted on the second L-shaped box plate.

[0017] Optionally, the high-voltage module includes a second input terminal assembly, an output terminal assembly, a high-voltage control switch, a circuit board, a second conductive bar, a first high-voltage protection unit, a pre-charging circuit unit and a battery control unit;

[0018] The second input terminal group is mounted on the first L-shaped box plate;

[0019] The output terminal group is mounted on the second L-shaped box plate;

[0020] The high-voltage control switch and the circuit board are mounted on the bottom plate, and a second interval is provided between the high-voltage control switch and the circuit board, and the first high-voltage protection unit, the pre-charging circuit unit and the battery control unit are all mounted on the circuit board;

[0021] The second conductive bar is connected to the high-voltage control switch, the first high-voltage protection unit and the output terminal assembly;

[0022] The pre-charging circuit unit is located at a side of the high-voltage control switch away from the output terminal assembly;

[0023] The battery control unit is located at a side of the pre-charging circuit unit away from the high-voltage control switch.

[0024] Optionally, the high-voltage module further includes a second high-voltage protection unit, which is located on a side of the pre-charging circuit unit away from the high-voltage control switch and is connected to the second input terminal assembly and the high-voltage control switch.

[0025] Optionally, along the length direction of the L-shaped box, the distance of the first interval is 30-50 mm.

[0026] A second aspect of an embodiment of the present application provides an industrial and commercial energy storage device, which includes the high-voltage distribution box described in the first aspect.

[0027] Optionally, the industrial and commercial energy storage device comprises a cabinet, an inverter unit, a battery unit and a cooling control unit, and the high-voltage distribution box, the inverter unit, the battery unit and the cooling control unit are all installed in the cabinet;

[0028] Wherein, at least a part of the inverter unit is located in the top notch of the L-shaped box body of the high-voltage distribution box, and the top notch is formed by the height difference between the first chamber and the second chamber of the L-shaped box body.

[0029] The high-voltage distribution box provided in the embodiment of the present application integrates the converging module and the high-voltage module inside the L-shaped box. The L-shaped box shape can adapt to the overall contour shape of the converging module and the high-voltage module to meet their spatial layout requirements. Compared with the solution of separately designing and manufacturing the high-voltage box and the distribution box in the related art, the embodiment of the present application only uses one box, which improves the structural compactness of the high-voltage distribution box, reduces the space occupied by the high-voltage distribution box, and reduces the cost of box manufacturing and assembly. Moreover, inside the L-shaped box, the converging module and the high-voltage module are spaced from each other and can be connected by wire wiring. Since the wire can be located inside the box and is not exposed, the neatness of the wiring of the high-voltage distribution box is improved and the wiring complexity is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 It is a first isometric view of a high-voltage distribution box provided in an embodiment of the present application;

[0032] Figure 2 is an exploded view of an L-shaped box provided in an embodiment of the present application;

[0033] Figure 3 is a second isometric view of a high-voltage distribution box provided in an embodiment of the present application;

[0034] Figure 4 It is a structural schematic diagram of an industrial and commercial energy storage device provided in an embodiment of the present application.

[0035] Reference numerals:

[0036] 1. High-voltage distribution box; 2. Cabinet; 3. Inverter unit; 4. Battery unit; 5. Cooling control unit;

[0037] 11, L-shaped box body; 111, inner cavity; 1111, first chamber; 1112, second chamber; 112, first L-shaped box board; 113, second L-shaped box board; 114, bottom board; 115, top board;

[0038] 12. busbar module; 121. first input terminal assembly; 122. busbar switch; 123. first conductive bar; 124. electric meter; 125. socket; 126. function switch assembly;

[0039] 13. High-voltage module; 131. Second input terminal assembly; 132. Output terminal assembly; 133. High-voltage control switch; 134. Circuit board; 135. Second conductive bar; 136. First high-voltage protection unit; 137. Pre-charging circuit unit; 138. Battery control unit; 139. Second high-voltage protection unit;

[0040] 14. Switching power supply;

[0041] G1, first gap; G2, top gap.

[0042] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are 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 are within the scope of protection of this application.

[0044] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0045] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0046] The high-voltage distribution box is an important equipment in the high-voltage power system. Its main functions are jointly realized by the high-voltage module and the convergence module. The high-voltage module is used to collect the voltage of each battery cluster, manage it, and output high-voltage electric energy; the convergence module is used to connect the battery clusters in parallel and then distribute them to various conversion stations or load centers.

[0047] In the related art, since the overall appearance dimensions of the high-voltage module and the busbar module in the high-voltage distribution box are inconsistent, they are usually installed separately in two independent chassis to form a high-voltage box and a distribution box. Generally speaking, the high-voltage box is wider and shorter, while the distribution box is narrower and taller. When assembling the high-voltage distribution box, it is necessary to add wiring between the high-voltage box and the distribution box to establish an electrical connection.

[0048] However, since the high-voltage box and the distribution box are designed and manufactured independently, the cost of the chassis is high; additional wiring is required between the two chassis, the assembly process is complicated, and it is easy to cause wiring disorder and increase losses, and also increase the cost of wires and terminals. In addition, the size of the high-voltage distribution box assembled according to the above scheme is usually large, and it takes up a lot of installation space when installed in the cabinet.

[0049] In view of the above problems, the present application embodiment provides a high-voltage distribution box 1, such as Figure 1 As shown, the high-voltage distribution box 1 includes an L-shaped box body 11, a bus module 12 and a high-voltage module 13; the L-shaped box body 11 has an inner cavity 111, the bus module 12 and the high-voltage module 13 are both installed in the inner cavity 111 of the L-shaped box body 11, and there is a first gap G1 between the bus module 12 and the high-voltage module 13.

[0050] The high-voltage distribution box 1 provided in the embodiment of the present application integrates the converging module 12 and the high-voltage module 13 inside the L-shaped box 11. The L-shaped box shape can adapt to the overall appearance contour shape of the converging module 12 and the high-voltage module 13 to meet their spatial layout requirements. Compared with the solution of separately designing and manufacturing the high-voltage box and the distribution box in the related art, the embodiment of the present application only uses one box, which improves the structural compactness and simplicity of the high-voltage distribution box 1, reduces the space occupied by the high-voltage distribution box 1, and reduces the cost of box manufacturing and assembly. Moreover, inside the L-shaped box 11, the converging module 12 and the high-voltage module 13 are spaced apart from each other and connected by wire wiring. Since the wire is located inside the box and is not exposed, the neatness of the wiring of the high-voltage distribution box 1 is improved, and the wiring complexity and wiring cost are reduced, thereby improving the assembly efficiency of the high-voltage distribution box.

[0051] Optionally, the first interval G1 is 30-50 mm along the length direction of the L-shaped box 11. In this way, the electrical safety between the high-voltage module 13 and the converging module 12 can be ensured while the utilization rate of the internal space of the L-shaped box 11 can be improved as much as possible.

[0052] In some embodiments of the present application, Figure 2 As shown, along the length direction of the L-shaped box body 11 , the inner cavity 111 of the L-shaped box body 11 includes a first chamber 1111 and a second chamber 1112 that are connected, and the height of the first chamber 1111 is greater than the height of the second chamber 1112 .

[0053] See also Figure 2 It can be seen that the bottoms of the first chamber 1111 and the second chamber 1112 are at the same height and are located on the same plane, and the top of the first chamber 1111 is higher than the top of the second chamber 1112. Therefore, overall, the first chamber 1111 and the second chamber 1112 are L-shaped.

[0054] In the converging module 12 and the high-voltage module 13, the module with a higher overall appearance height is located in the first chamber 1111, and the module with a lower overall appearance height is located in the second chamber 1112. For example, Figure 1 As shown, the overall appearance height of the bus module 12 is higher than the overall appearance height of the high-voltage module 13 , so the bus module 12 is located in the first cavity 1111 , and the high-voltage module 13 is located in the second cavity 1112 .

[0055] See also Figure 2 In some embodiments of the present application, the L-shaped box 11 includes a bottom plate 114, four side plates vertically arranged on the same side of the bottom plate 114 and respectively connected to the four edges of the bottom plate 114, and a top plate 115 covering the four side plates away from the bottom plate 114.

[0056] The bottom plate 114 and the top plate 115 are spaced apart and opposite to each other along the height direction of the L-shaped box 11, wherein the bottom plate 114 is a straight plate and the top plate 115 is a Z-shaped plate. Optionally, the Z-shaped plate includes three plates connected in sequence and bent to each other, wherein the angle between the plate in the middle and the other two plates can be an acute angle, a right angle or an obtuse angle. Figure 2 In the embodiment, the three plates of the Z-shaped plate are vertically connected.

[0057] Among the four side panels, the two side panels opposite to each other along the length direction of the L-shaped box body 11 are both rectangular panels, and the area of ​​one of the rectangular panels is greater than the area of ​​the other rectangular panel. The two side panels opposite to each other along the width direction of the L-shaped box body 11 are L-shaped panels, and the areas of the two L-shaped panels are equal. In the embodiment of the present application, in order to facilitate the distinction between the two L-shaped panels, the two L-shaped panels are named as the first L-shaped box panel 112 and the second L-shaped box panel 113, respectively.

[0058] Optionally, the four side panels are fixedly connected to the bottom panel 114 to form the bottom box of the L-shaped box 11 , and the top panel 115 is detachably connected to the four side panels to facilitate installation of the confluence module 12 and the high-voltage module 13 inside the L-shaped box 11 .

[0059] It should be noted that in the related art, since the bus module 12 and the high-voltage module 13 are respectively installed in two independent boxes, there is a switching power supply 14 in the high-voltage box and the distribution box respectively, which is used to realize power supply and power off of electrical components in the high-voltage box and the distribution box.

[0060] However, in the embodiment of the present application, since the bus module 12 and the high-voltage module 13 are integrated in the same L-shaped box 11, the bus module 12 and the high-voltage module 13 share the same switch power supply 14 in the high-voltage distribution box 1. In this way, one switch power supply 14 is saved, which is beneficial to the miniaturization and rationality of the layout of the high-voltage distribution box 1 on the one hand, and also reduces the cost of the high-voltage distribution box 1 on the other hand.

[0061] In order to make the technical solutions and advantages of the present application clearer, the types and arrangements of electrical components inside the high-voltage distribution box 1 provided in the embodiment of the present application are further introduced and illustrated below in conjunction with the accompanying drawings.

[0062] like Figure 3 As shown, the bus module 12 includes a first input terminal assembly 121, a bus switch 122, a first conductive bar 123, and also includes an electric meter 124, a socket 125, a functional switch assembly 126, a dehumidifier and at least one of a first fan.

[0063] The first input terminal assembly 121 is installed on the first L-shaped box plate 112 of the L-shaped box body 11, and serves as a signal input interface of the high-voltage distribution box 1. Optionally, the signal input through the first input terminal assembly 121 includes at least one of a power signal and a communication signal. In one example, Figure 3 As shown, the first input terminal assembly 121 includes at least one of a PCS (Power Conversion System, energy storage converter) power terminal, a dehumidifier power terminal, and a first fan power terminal, wherein the PCS power terminal is used to realize the electrical connection between the high-voltage distribution box 1 and the PCS.

[0064] The busbar switch 122 is mounted on the bottom plate 114 of the L-shaped box 11 and is used to control whether the busbar module 12 is powered. The busbar switch 122 is connected to a first conductive bar 123, which is located on a side of the busbar switch 122 away from the first input terminal assembly 121. The first conductive bar 123 is used to facilitate electrical connection between other electrical components in the high-voltage distribution box 1 and the busbar switch 122. Optionally, as Figure 3 As shown, the number of the first conductive bars 123 included in the bus module 12 is multiple, so that the wiring harness connection points between other electrical components and the bus switch 122 can be dispersed, avoiding wiring confusion caused by excessive concentration of connection points, and improving wiring neatness and rationality of wiring harness layout.

[0065] The electric meter 124, the socket 125 and the functional switch assembly 126 are installed on the second L-shaped box plate 113 of the L-shaped box body 11. Among them, the electric meter 124 is used to measure parameters such as voltage, current and power in order to accurately record the power consumption. Optionally, a current transformer can be provided on at least one first conductive bar 123 to achieve accurate measurement of electric energy. The socket 125 is used to provide a power supply interface to connect external devices or perform charging operations. The functional switch assembly 126 is a switch assembly of various functional devices in the high-voltage distribution box 1. For example, the functional switch assembly 126 may include at least one of a liquid cooling unit switch, an AC power switch, a DC power switch, a fan power switch, and a lightning arrester switch.

[0066] In some embodiments of the present application, Figure 3 As shown, the high-voltage module 13 includes a second input terminal assembly 131, an output terminal assembly 132, a high-voltage control switch 133, a circuit board 134, a second conductive bar 135, a first high-voltage protection unit 136, a pre-charging circuit unit 137 and a battery control unit 138.

[0067] The second input terminal assembly 131 is installed on the first L-shaped box plate 112 of the L-shaped box body 11, and serves as another signal input interface of the high-voltage distribution box 1. Optionally, the signal input through the second input terminal assembly 131 includes at least one of a power signal and a communication signal. In one example, Figure 3 As shown, the second input terminal assembly 131 includes at least one of a liquid cooling unit power supply terminal, a 24V power supply terminal, a digital input interface, a digital output interface, and a local area network interface. Among them, the liquid cooling unit power supply terminal is used to realize the electrical connection between the high-voltage distribution box 1 and the liquid cooling unit. The 24V power supply terminal is used to provide a DC power supply for various electrical components. The digital input / output interface is used to receive / output the switch quantity or digital signal of various electrical components. The local area network interface is used to realize the data exchange between the high-voltage distribution box 1 and other devices.

[0068] The output terminal assembly 132 is mounted on the second L-shaped box plate 113 of the L-shaped box body 11, and serves as a signal output interface of the high-voltage distribution box 1. Optionally, the signal outputted by the output terminal assembly 132 includes at least one of a power signal and a communication signal. In one example, Figure 3 As shown, the output terminal assembly 132 includes at least one of a DC high voltage output terminal, a DC low voltage output terminal, a master-slave communication interface, and a debugging port. The DC high voltage output terminal and the DC low voltage output terminal are used to output a DC high voltage electrical signal and a DC low voltage electrical signal, respectively. The master-slave communication interface is used to achieve communication with external devices. The debugging port is used to connect and detect the electrical performance of the high voltage distribution box 1.

[0069] The high-voltage control switch 133 and the circuit board 134 are both mounted on the bottom plate 114 of the L-shaped box 11, and the first high-voltage protection unit 136, the pre-charging circuit unit 137 and the battery control unit 138 are all mounted on the circuit board 134. The high-voltage control switch 133 is used to control whether the high-voltage module 13 is powered on or not, that is, to achieve the distribution and control of electric energy. The circuit board 134 is used to achieve the integration of the first high-voltage protection unit 136, the pre-charging circuit unit 137 and the battery control unit 138. Optionally, there is a second interval between the high-voltage control switch 133 and the circuit board 134 to ensure electrical safety.

[0070] The second conductive bar 135 is used to realize the electrical connection between the high-voltage control switch 133, the first high-voltage protection unit 136 and the output terminal assembly 132. The first high-voltage protection unit 136 includes a fuse, a main positive contactor, a main negative contactor and a Hall sensor, wherein the DC low-voltage output terminal, the main negative contactor and the high-voltage control switch 133 are connected through a second conductive bar 135 to form a first loop, and the Hall sensor is sleeved on the second conductive bar 135; the DC high-voltage output terminal, the fuse, the main positive contactor and the high-voltage control switch 133 are connected through another second conductive bar 135 to form a second loop.

[0071] The pre-charging circuit unit 137 is located on the side of the high-voltage control switch 133 away from the output terminal assembly 132, and is used to form a pre-charging circuit. Optionally, the pre-charging circuit unit 137 includes a pre-charging resistor and a pre-charging contactor. The pre-charging circuit reduces spark arcing and impact by slowly charging, thereby improving the safety and stability of the high-voltage module 13.

[0072] The battery control unit (BCU) 138 is located on the side of the pre-charging circuit unit 137 away from the high-voltage control switch 133. It is used to monitor the battery status, control the charging and discharging process, diagnose faults and exchange information with other systems to ensure efficient, safe and reliable operation of the battery system.

[0073] In some embodiments of the present application, the high-voltage module 13 also includes a second high-voltage protection unit 139, which is located on a side of the pre-charging circuit unit 137 away from the high-voltage control switch 133 and is connected to the second input terminal assembly 131 and the high-voltage control switch 133.

[0074] The second high-voltage protection unit 139 includes at least one of a lightning arrester, a relay, and a fuse holder. The lightning arrester is used to protect the high-voltage distribution box 1 from lightning strikes or operational overvoltage strikes. The relay is used to control and regulate the power system, such as start-stop control, current and voltage regulation, etc. The fuse holder is used for overcurrent protection of the circuit. When the current in the circuit exceeds the set value, the fuse will melt, thereby cutting off the current, preventing the circuit from overload or short circuit, and protecting the entire system from damage.

[0075] Optionally, a 24V terminal is further provided on a side of the second high-voltage protection unit 139 away from the pre-charging circuit unit 137 for connecting and distributing a low-voltage control signal and power supply.

[0076] By adopting the above-mentioned arrangement, the high-voltage module 13 of the high-voltage distribution box 1 has a compact structure, high space utilization, reasonable distribution of various electrical components, and easy installation, which shortens the connection line sequence between various electrical components, reduces the power loss of the product, and can prevent wiring disorder, making the product assembly neater.

[0077] In some embodiments of the present application, the switching power supply 14 is located in the second chamber 1112 and is arranged on a side of the second high-voltage protection unit 139 away from the pre-charging circuit, and the battery control unit 138 is located on a side of the switching power supply 14 away from the bus module 12.

[0078] Since a large number of first conductive rows 123 and wiring harnesses need to be arranged in the first chamber 1111 and the space is relatively compact, the switching power supply 14 is arranged in the second chamber 1112 and integrated on the circuit board 134, thereby achieving a reasonable layout of the switching power supply 14 and improving the space utilization of the second chamber 1112.

[0079] In some embodiments of the present application, the high-voltage distribution box 1 may further include at least one of a first fan, a second fan, and an indicator light. The first fan is arranged in the first chamber 1111 to achieve heat dissipation of the confluence module 12; the second fan is arranged in the second chamber 1112 to achieve heat dissipation of the high-voltage module 13.

[0080] Exemplarily, at least one first fan is mounted on the first L-shaped box plate 112 and is disposed near the merging switch 122 to dissipate heat for the merging switch 122. At least one second fan is mounted on the circuit board 134 and is disposed near the high-voltage control switch 133 and / or the first high-voltage protection unit 136 to dissipate heat for the high-voltage control switch 133 and / or the first high-voltage protection unit 136.

[0081] The embodiment of the present application also provides an industrial and commercial energy storage device, which includes the high-voltage distribution box 1 described in the above embodiment.

[0082] Since the high-voltage distribution box 1 described in the above embodiment has the advantages of compact structure, simple wiring, low manufacturing cost, etc., when it is applied to industrial and commercial energy storage devices, it occupies a smaller layout space, which is conducive to realizing the reasonable layout of internal components of industrial and commercial energy storage devices, as well as increasing the layout space of batteries and improving battery capacity.

[0083] In some embodiments, Figure 4 As shown, the industrial and commercial energy storage device also includes a cabinet 2, an inverter unit 3, a battery unit 4 and a cooling control unit 5. The high-voltage distribution box 1, the inverter unit 3, the battery unit 4 and the cooling control unit 5 are all installed in the cabinet 2. Figure 2 and Figure 4 As shown, at least a portion of the inverter unit 3 is located in the top notch G2 of the L-shaped box 11 of the high-voltage distribution box 1 , and the top notch G2 is formed by the height difference between the first chamber 1111 and the second chamber 1112 of the L-shaped box 11 .

[0084] By placing the inverter unit 3 in the top notch G2 of the L-shaped box 11 of the high-voltage distribution box 1, full utilization of the internal space of the cabinet 2 is achieved, the rationality and integration of the layout are improved, and the product integration effect is improved.

[0085] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the present application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only.

[0086] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A high voltage distribution box, characterized in that: The high-voltage distribution box (1) comprises an L-shaped box body (11), a confluence module (12) and a high-voltage module (13); The L-shaped box (11) has an inner cavity (111), the confluence module (12) and the high-voltage module (13) are both installed in the inner cavity (111) of the L-shaped box (11), and a first gap (G1) is provided between the confluence module (12) and the high-voltage module (13).

2. The high voltage distribution box according to claim 1, characterized in that: Along the length direction of the L-shaped box (11), the inner cavity (111) of the L-shaped box (11) comprises a first chamber (1111) and a second chamber (1112) which are connected to each other, and the height of the first chamber (1111) is greater than the height of the second chamber (1112); The confluence module (12) is located in the first chamber (1111), and the high-voltage module (13) is located in the second chamber (1112).

3. The high voltage distribution box according to claim 2, characterized in that: The high-voltage distribution box (1) comprises a switching power supply (14), and the current converging module (12) and the high-voltage module (13) share the same switching power supply (14).

4. The high voltage distribution box according to claim 3, characterized in that: The switching power supply (14) is located in the second chamber (1112).

5. The high voltage distribution box according to any one of claims 1 to 4, characterized in that: The L-shaped box body (11) comprises a first L-shaped box plate (112) and a second L-shaped box plate (113) spaced opposite to each other in a width direction, and a bottom plate (114) and a top plate (115) spaced opposite to each other in a height direction, wherein the bottom plate (114) is a straight plate, and the top plate (115) is a Z-shaped plate; The two sides of the bottom plate (114) are respectively connected to the same side edges of the first L-shaped box plate (112) and the second L-shaped box plate (113), and the two sides of the top plate (115) are respectively connected to the other side edges of the first L-shaped box plate (112) and the second L-shaped box plate (113).

6. The high voltage distribution box according to claim 5, characterized in that: The busbar module (12) comprises a first input terminal assembly (121), a busbar switch (122), a first conductive bar (123), and at least one of an electric meter (124), a socket (125) and a functional switch assembly (126); The first input terminal assembly (121) is mounted on the first L-shaped box plate (112); The busbar switch (122) is mounted on the bottom plate (114); the first conductive bar (123) is located on a side of the busbar switch (122) away from the first input terminal assembly (121) and is connected to the busbar switch (122); The electric meter (124), the socket (125) and the functional switch assembly (126) are installed on the second L-shaped box plate (113).

7. The high voltage distribution box according to claim 5, characterized in that: The high-voltage module (13) comprises a second input terminal assembly (131), an output terminal assembly (132), a high-voltage control switch (133), a circuit board (134), a second conductive bar (135), a first high-voltage protection unit (136), a pre-charging circuit unit (137) and a battery control unit (138); The second input terminal assembly (131) is mounted on the first L-shaped box plate (112); The output terminal assembly (132) is mounted on the second L-shaped box plate (113); The high-voltage control switch (133) and the circuit board (134) are mounted on the base plate (114); the first high-voltage protection unit (136), the pre-charging circuit unit (137) and the battery control unit (138) are all mounted on the circuit board (134); The second conductive bar (135) is connected to the high-voltage control switch (133), the first high-voltage protection unit (136) and the output terminal assembly (132); The pre-charging circuit unit (137) is located on a side of the high-voltage control switch (133) away from the output terminal assembly (132); The battery control unit (138) is located on a side of the pre-charging circuit unit (137) away from the high-voltage control switch (133).

8. The high voltage distribution box according to claim 7, characterized in that: The high-voltage module (13) further comprises a second high-voltage protection unit (139), wherein the second high-voltage protection unit (139) is located on a side of the pre-charging circuit unit (137) away from the high-voltage control switch (133), and is connected to the second input terminal assembly (131) and the high-voltage control switch (133).

9. The high voltage distribution box according to claim 1, characterized in that: Along the length direction of the L-shaped box (11), the distance of the first interval (G1) is 30-50 mm.

10. An industrial and commercial energy storage device, characterized in that: The industrial and commercial energy storage device comprises the high-voltage distribution box (1) as described in any one of claims 1 to 9.

11. The industrial and commercial energy storage device according to claim 10, characterized in that: The industrial and commercial energy storage device comprises a cabinet (2), an inverter unit (3), a battery unit (4) and a cooling control unit (5); the high-voltage distribution box (1), the inverter unit (3), the battery unit (4) and the cooling control unit (5) are all installed in the cabinet (2); Wherein, at least a portion of the inverter unit (3) is located in a top notch (G2) of an L-shaped box body (11) of the high-voltage distribution box (1), and the top notch (G2) is formed by a height difference between a first chamber (1111) and a second chamber (1112) of the L-shaped box body (11).

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