Shorting element and energy storage inverter device

Abstract

The application relates to a short-circuit element and an energy storage converter. The short-circuit element is used for being inserted into a power distribution terminal, the insertion direction of the short-circuit element is recorded as a first direction, and the first direction, a second direction and a third direction are perpendicular to each other in pairs, the short-circuit element comprises: a switching unit, which comprises a switching part and a pressing part, the switching part is protrudingly arranged on the pressing part along the first direction, and the size of the pressing part is greater than that of the switching part along the second direction; a mounting unit, which is multiple in number, multiple mounting units are arranged on the switching part along the third direction at intervals, and the multiple mounting units are connected in conduction. In this way, the dismounting efficiency and precision of the short-circuit element can be improved.

Description

Technical Field

[0001] This application relates to the field of new energy technology, and in particular to a short-circuit element and an energy storage converter. Background Technology

[0002] The power distribution terminals of the energy storage converter can supply three-phase power. When three-phase power is required, a shorting element can be inserted into the three shorting holes in the power distribution terminal, which can be L1, L2, and L3 in sequence. This allows the power distribution terminal to supply single-phase power through the shorting element, thus achieving the switching and unification between three-phase and single-phase power for the energy storage converter. However, traditional shorting elements are typically time-consuming and laborious to install and remove from the power distribution terminal, affecting the efficiency and accuracy of the installation and removal process. Utility Model Content

[0003] One of the technical problems addressed by this application is how to improve the efficiency and accuracy of assembling and disassembling shorting components.

[0004] A shorting element is used for insertion into a power distribution terminal. The insertion direction of the shorting element is designated as a first direction, and the first direction, a second direction, and a third direction are mutually perpendicular. The shorting element comprises:

[0005] The adapter unit includes an adapter portion and a pressing portion. The adapter portion protrudes from the pressing portion along a first direction, and the size of the pressing portion along the second direction is larger than the size of the adapter portion.

[0006] Multiple installation units are provided, and these installation units are spaced apart along the third direction on the adapter. The multiple installation units are electrically connected to each other.

[0007] In one embodiment, the distance between the transition portion and the end of the pressing portion along the second direction is 2 mm to 3 mm.

[0008] In one embodiment, the adapter portion is recessed near the pressing portion to form a groove.

[0009] In one embodiment, the two ends of the groove are respectively spaced a certain distance from the edge of the transition portion; and / or, the width of the groove is 1.5 mm to 2.5 mm.

[0010] In one embodiment, the adapter unit is an insulator, the mounting unit is a conductor, and / or;

[0011] The multiple mounting units are connected by a conductive structure.

[0012] In one embodiment, the mounting unit includes a support portion and two edge springs. The support portion is inserted into the adapter portion, and the edge springs protrude from the support portion along the first direction, with the two edge springs spaced apart along the second direction.

[0013] In one embodiment, the mounting unit includes an intermediate spring and two edge springs, the intermediate spring being spaced apart between the two edge springs, and the intermediate spring and the two edge springs being connected at one end near the adapter unit.

[0014] In one embodiment, the outer surface of the edge spring in the second direction includes a first connecting segment and a second connecting segment whose ends are connected to each other. The second connecting segment is connected to the end face of the free end of the edge spring perpendicular to the first direction. The distance from the first connecting segment to the intermediate spring is greater than the distance from the second connecting segment to the intermediate spring. Along the first direction from the adapter unit to the mounting unit, the distance from the first connecting segment to the intermediate spring is equal, and the distance from the second connecting segment to the intermediate spring is reduced.

[0015] In one embodiment, the outer surface further includes a third connecting segment, the first connecting segment being connected between the third connecting segment and the second connecting segment, the distance from the first connecting segment to the intermediate spring being greater than the distance from the third connecting segment to the intermediate spring, and the distance from the third connecting segment to the intermediate spring increasing along the first direction from the adapter unit to the mounting unit.

[0016] In one embodiment, both the intermediate spring and the edge spring have through holes, which penetrate the intermediate spring and the edge spring along the second direction.

[0017] An energy storage converter includes a power distribution terminal and a shorting element as described above. The outer surface of the power distribution terminal is recessed to form a plurality of shorting holes. A plurality of the mounting units are respectively inserted into different shorting holes. The pressing part abuts against the outer surface of the power distribution terminal.

[0018] In one embodiment, the power distribution terminal is provided with a plurality of wiring holes, which are arranged in multiple rows on the power distribution terminal. Each row includes a plurality of live wire holes and a neutral wire hole. The live wire holes are used to mate with the live wire, and the neutral wire hole is used to mate with the neutral wire.

[0019] In one embodiment, the shorting hole is located between two adjacent rows of wiring holes.

[0020] In one embodiment, the shorting holes are arranged in multiple rows, and the power distribution terminal includes a partition wall that simultaneously defines the boundaries of two adjacent shorting holes in two adjacent rows, the thickness of which is less than a set value.

[0021] In one embodiment, the power distribution terminal includes a first board interface, a second board interface, a third board interface, and a fourth board interface, wherein the first board interface, the second board interface, and the third board interface are the live wire holes, and the fourth board interface is the neutral wire hole; and / or,

[0022] The shorting hole includes a first power distribution interface, a second power distribution interface, a third power distribution interface, and a fourth power distribution interface; when the first power distribution interface, the second power distribution interface, and the third power distribution interface are shorted, the phases of the first power distribution interface, the second power distribution interface, and the third power distribution interface are consistent.

[0023] One technical advantage of one embodiment of this application is that, given the mode in which the size of the pressing part along the second direction is larger than the size of the adapter part, on the one hand, the pressing part is located outside the shorting hole and is hung on the outer surface of the power distribution terminal. This effectively avoids interference and friction between the pressing part and the inner wall of the shorting hole, thus preventing the edge from applying force to the adapter unit and ultimately improving the assembly efficiency of the shorting element. On the other hand, the relatively large size of the pressing part along the second direction, i.e., the wider pressing part, reasonably increases the force-bearing area of ​​the pressing part and improves the convenience of applying force to the pressing part, thereby improving the assembly efficiency of the shorting element. Furthermore, since the pressing part is hung on the outer surface of the power distribution terminal, the outer surface of the power distribution terminal will effectively limit the entire shorting element along the first direction, thereby accurately controlling the insertion position of the shorting element in the shorting hole, thus improving the assembly accuracy of the shorting element. On the other hand, since the pressing part will be hung on the outer surface of the power distribution terminal, during the process of removing the shorting component from the power distribution terminal to achieve disassembly, the pressing part can serve as a good force support point for disassembly tools such as bolt cutters. This makes it easier for the disassembly tool to apply force to the shorting component in the first direction, ensuring that the shorting component is smoothly removed from the shorting hole, thereby improving the disassembly efficiency of the shorting component. Attached Figure Description

[0024] Figure 1 This is a partial planar structural schematic diagram of an energy storage converter provided in one embodiment.

[0025] Figure 2 for Figure 1 A three-dimensional structural diagram of the shorting element in the energy storage converter shown.

[0026] Figure 3 for Figure 2 The diagram shows a front view of the shorting element.

[0027] Figure 4 for Figure 2 The diagram shows a side view of the shorting element.

[0028] Figure 5 This is a partial three-dimensional structural schematic diagram of an energy storage converter provided in one embodiment.

[0029] Reference numerals: Energy storage converter 10, shorting element 100, power distribution terminal 200, shorting hole 210, first power distribution interface 211, second power distribution interface 212, third power distribution interface 213, fourth power distribution interface 214, wiring hole 220, live wire hole 220a, neutral wire hole 220b, first single board interface 221, second single board interface 222, third single board interface 223, fourth single board interface 224, outer surface 230, partition wall 240, adapter unit 300, pressing part 310, adapter part 320, groove 321, mounting unit 400, support part 410, edge spring 420, first connecting section 421, second connecting section 422, third connecting section 423, intermediate spring 430, through hole 440. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0031] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0032] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0036] See Figure 1 In one embodiment of this application, a shorting element 100 is provided and inserted into a power distribution terminal 200.

[0037] See Figure 2With reference to a first direction, a second direction, and a third direction that are mutually perpendicular, the first direction is the insertion direction of the shorting element 100 relative to the power distribution terminal 200. The first direction can also be a vertical direction, while the second and third directions are both horizontal directions. The first, second, and third directions can be understood as the extension directions of the three coordinate axes in a spatial rectangular coordinate system, for example, the first direction is the Z-axis direction, the second direction is the Y-axis direction, and the third direction is the X-axis direction. The shorting element 100 includes a transition unit 300 and a mounting unit 400. The transition unit 300 includes a pressing part 310 and a transition part 320. The transition part 320 protrudes along the first direction and is disposed on the pressing part 310. The size of the pressing part 310 along the second direction is larger than the size of the transition part 320. There are multiple mounting units 400, which are spaced apart along the third direction and are disposed on the transition part 320. The multiple mounting units 400 are electrically connected to each other. For example, the ends of multiple mounting units 400 can be connected to a conductive structure, and the adapter unit 300 can be connected to the conductive structure by injection molding, thus achieving conductive connection between multiple mounting units 400. When the shorting element 100 is inserted into the power distribution terminal 200, given the conductive connection between the multiple mounting units 400, the shorting element 100 can convert the multi-phase power supplied by the power distribution terminal 200 into single-phase power output. For example, the shorting element 100 can convert the three-phase power supplied by the power distribution terminal 200 into single-phase power output.

[0038] See Figure 1 A shorting hole 210 is provided on the outer surface 230 of the power distribution terminal 200. The shorting hole 210 extends a certain length along the first direction. Obviously, the shorting hole 210 penetrates the outer surface 230 of the power distribution terminal 200, so the shorting hole 210 has an opening on the outer surface 230. The number of shorting holes 210 corresponds to the number of mounting units 400. The number of shorting holes 210 can be equal to the number of mounting units 400, or it can be an integer multiple of the number of mounting units 400. When the shorting element 100 is inserted into the power distribution terminal 200, different mounting units 400 will be inserted into different shorting holes 210, thus realizing that different mounting units 400 are matched with different shorting holes 210. Since the size of the pressing part 310 in the second direction is larger than the size of the adapter part 320, the pressing part 310 will abut against the outer surface 230 of the power distribution terminal 200 in the first direction. That is, the pressing part 310 cannot be inserted into the shorting hole 210 of the power distribution terminal, so that the pressing part 310 is located outside the shorting hole 210 and is hung on the outer surface 230 of the power distribution terminal 200.

[0039] If the size of the pressing part along the second direction is equal to the size of the adapter part, the adapter unit will be roughly linear. This has the following drawbacks: First, the linear adapter unit will be entirely housed in the shorting hole, meaning it is located below the outer surface of the distribution terminal. This causes interference and friction between the inner walls of the shorting hole during assembly, making it difficult to apply force to the adapter unit and thus affecting the assembly efficiency of the shorting element. Second, the pressing part of the linear adapter unit is smaller along the second direction, meaning it is narrower. During the assembly of the shorting element relative to the distribution terminal, the force-bearing area of ​​the pressing part is smaller, making it difficult to apply force to the pressing part and thus affecting the assembly efficiency of the shorting element. Third, the distribution terminal cannot limit the linear adapter unit along the first direction, making it impossible to accurately determine the insertion position of the shorting element in the shorting hole, thus affecting the assembly accuracy of the shorting element. Fourth, since the linear adapter unit is entirely housed in the shorting hole and located below the outer surface of the power distribution terminal, during the process of removing the shorting element from the power distribution terminal to achieve disassembly, disassembly tools such as bolt cutters will find it difficult to apply force along the first direction to the adapter unit, making it difficult to remove the adapter unit from the shorting hole along the first direction, thus affecting the disassembly efficiency of the shorting element.

[0040] See Figure 1Regarding the shorting element 100 in the above embodiments, given that the size of the pressing portion 310 along the second direction is larger than the size of the adapter portion 320, the adapter unit 300 is approximately T-shaped. This has the following advantages: First, the pressing portion 310 is located outside the shorting hole 210 and is mounted on the outer surface 230 of the distribution terminal 200. This effectively avoids interference and friction between the pressing portion 310 and the inner wall of the shorting hole 210, thus facilitating the application of force to the adapter unit 300 and ultimately improving the assembly efficiency of the shorting element 100. Second, the pressing portion 310 of the T-shaped adapter unit 300 has a relatively large size along the second direction, i.e., the pressing portion 310 is wider, thereby reasonably increasing the force-bearing area of ​​the pressing portion 310 and improving the convenience of applying force to the pressing portion 310, thus improving the assembly efficiency of the shorting element 100. Thirdly, since the pressing part 310 of the T-type adapter unit 300 is attached to the outer surface 230 of the power distribution terminal 200, the outer surface 230 of the power distribution terminal 200 will effectively limit the entire shorting element 100 along the first direction, thereby accurately controlling the insertion position of the shorting element 100 in the shorting hole 210, thus improving the assembly accuracy of the shorting element 100. Fourthly, since the pressing part 310 of the T-type adapter unit 300 is attached to the outer surface 230 of the power distribution terminal 200, during the process of removing the shorting element 100 from the power distribution terminal 200 for disassembly, the pressing part 310 can serve as a good fulcrum for disassembly tools such as bolt cutters. This facilitates the application of force to the shorting element 100 by the disassembly tool along the first direction, ensuring that the shorting element 100 is smoothly removed from the shorting hole 210, thereby improving the disassembly efficiency of the shorting element 100.

[0041] See Figure 4 In some embodiments, the distance H between the end of the adapter 320 and the end of the pressing part 310 along the second direction is 2mm to 3mm. For example, the specific value of the distance H between the end of the adapter 320 and the end of the pressing part 310 can be 2mm, 2.5mm, or 3mm, etc. This ensures that the pressing part 310 has a reasonable length along the second direction to abut against the outer surface 230 of the power distribution terminal 200, thereby improving the stability and reliability of the pressing part 310 hanging on the power distribution terminal 200, and thus improving the assembly accuracy of the shorting element 100. It also ensures that the pressing part 310 has a sufficiently large force-bearing area, thereby improving the assembly efficiency of the shorting element 100.

[0042] See Figure 3In some embodiments, a groove 321 is recessed on the outer surface of the adapter 320. The groove 321 is located close to the pressing part 310, so that the groove 321 and the pressing part 310 maintain a small distance along the first direction. During the disassembly of the shorting element 100, disassembly tools such as bolt cutters can be inserted into the groove 321. The groove 321 can effectively limit the disassembly tools such as bolt cutters, making it easier to apply a force along the first direction to the shorting element 100 through the groove 321, thereby improving the disassembly efficiency of the shorting element 100.

[0043] See Figure 3 In some embodiments, the two ends of the groove 321 are spaced apart from the edge of the adapter 320 along the second direction by a set distance. This facilitates the groove 321 in limiting the bolt cutter or other disassembly tools along the second direction, ensuring that the bolt cutter or other disassembly tools are always located in the groove 321, preventing them from detaching from the groove 321, and also ensuring the disassembly efficiency of the shorting element 100. The width A of the groove 321 is 1.5mm to 2.5mm. For example, the width A of the groove 321 can be 1.5mm, 2mm, or 2.5mm, etc. The width A of the groove 321 can be understood as the dimension of the groove 321 in the first direction. This gives the groove 321 a reasonable width, ensuring that the bolt cutter or other disassembly tools can be smoothly inserted into the groove 321, thereby improving the disassembly efficiency of the shorting element 100.

[0044] See Figure 2 In some embodiments, the adapter unit 300 is an insulator to prevent leakage of the shorting element 100, thereby ensuring the safety of the shorting element 100. The mounting unit 400 is a conductor, so that multiple mounting units 400 can be electrically connected to achieve the shorting function and ensure that the shorting element 100 can smoothly convert multi-phase electricity into single-phase electricity.

[0045] See Figure 2 In some embodiments, the mounting unit 400 includes a support portion 410 and two edge springs 420. The support portion 410 is inserted into the adapter portion 320, and the edge springs 420 protrude along a first direction onto the support portion 410. The support portion 410 provides good support for the edge springs 420, and the two edge springs 420 are spaced apart along a second direction. During the insertion of the mounting unit 400 into the shorting hole 210, the distance between the two edge springs 420 can be reasonably reduced, thereby reducing assembly resistance and improving assembly efficiency. After the shorting element 100 is assembled, the two edge springs 420 with the reasonably reduced distance can generate a reasonable abutment force with the inner wall surface of the shorting hole 210, thereby improving the stability and reliability of the assembly of the shorting element 100.

[0046] See Figure 2In some embodiments, the mounting unit 400 includes a central spring 430 and two edge springs 420. The central spring 430 is spaced apart between the two edge springs 420 along a second direction. The central spring 430 and the two edge springs 420 are connected at one end near the adapter unit 300. For example, the central spring 430 and the two edge springs 420 can both protrude along a first direction on the support portion 410, thus forming a mutual connection between the central spring 430 and the two edge springs 420 at one end near the adapter unit 300 through the intermediate connection of the support portion 410. By providing the central spring 430, the structural strength of the mounting unit 400 can be reasonably improved, and the stability and reliability of the assembly of the shorting element 100 can also be improved to a certain extent.

[0047] See Figure 4 In some embodiments, the outer surface of the edge spring 420 in the second direction includes a first connecting segment 421 and a second connecting segment 422. The ends of the first connecting segment 421 and the second connecting segment 422 are connected to each other. The second connecting segment 422 is connected to the end face on the free end of the edge spring 420, which is perpendicular to the first direction. During the insertion of the shorting element 100, it can be understood that the first connecting segment 421 is located above the second connecting segment 422. Along the first direction from the adapter unit 300 to the mounting unit 400, that is, along the direction from top to bottom, the distance from the first connecting segment 421 to the intermediate spring 430 is equal, and the distance from the second connecting segment 422 to the intermediate spring 430 decreases. The distance from the first connecting segment 421 to the intermediate spring 430 is greater than the distance from the second connecting segment 422 to the intermediate spring 430. This makes the portion of the edge spring 420 located at the second connecting segment 422 approximately wedge-shaped. Therefore, during the insertion process, the wedge-shaped portion of the edge spring 420 can play a good guiding role, reducing the interference resistance of the mounting unit 400 during insertion, thereby improving the assembly efficiency of the shorting element 100. After the shorting element 100 is assembled, the edge spring 420 can move a certain distance closer to the middle spring 430, so that there is a reasonable elastic abutment force between the first connecting section 421 and the inner wall of the shorting hole 210. This reasonably improves the fit force between the shorting element 100 and the shorting hole 210, preventing the shorting element 100 from detaching from the shorting hole 210, thereby improving the stability and reliability of the assembly of the shorting element 100.

[0048] See Figure 4In some embodiments, the outer surface also includes a third connecting segment 423, with the first connecting segment 421 connected between the third connecting segment 423 and the second connecting segment 422. During the insertion of the shorting element 100, the third connecting segment 423 can be understood as being located above the first connecting segment 421. The distance from the first connecting segment 421 to the intermediate spring piece 430 is greater than the distance from the third connecting segment 423 to the intermediate spring piece 430. Along the first direction from the adapter unit 300 to the mounting unit 400, i.e., along the direction from top to bottom, the distance from the third connecting segment 423 to the intermediate spring piece 430 increases. Therefore, by providing the third connecting segment 423, the third connecting segment 423 can maintain a non-contact relationship with the inner wall of the shorting hole 210 during insertion, thus reasonably reducing the contact area between the edge spring piece 420 and the inner wall of the shorting hole 210, thereby reducing friction and assembly resistance, and thus improving the assembly efficiency of the shorting element 100.

[0049] See Figure 2 In some embodiments, a through hole 440 is provided on the edge spring 420, and the through hole 440 penetrates the edge spring 420 along the second direction. By providing the through hole 440, the weight of the edge spring 420 and the material consumption of the edge spring 420 can be reduced, thereby reducing the material cost of the edge spring 420, and consequently reducing the manufacturing cost of the shorting element 100. It can also reasonably reduce the contact area between the edge spring 420 and the inner wall of the shorting hole 210, thereby reducing assembly resistance and improving assembly efficiency. A through hole 440 can also be provided on the intermediate spring 430, and the through hole 440 penetrates the intermediate spring 430 along the second direction. This can reduce the weight of the intermediate spring 430 and the material consumption of the intermediate spring 430, thereby reducing the material cost of the intermediate spring 430, and consequently reducing the manufacturing cost of the shorting element 100.

[0050] This application also provides an energy storage converter 10, which includes power distribution terminals 200 (see reference). Figure 5 ) and the aforementioned shorting element 100 (such as Figure 1 The power distribution terminal 200 has multiple shorting holes 210 on its outer surface 230. Each shorting hole 210 extends a certain length along a first direction and penetrates the outer surface 230, thus creating an opening. Multiple mounting units 400 are inserted into different shorting holes 210, with the pressing part 310 abutting against the outer surface 230 of the power distribution terminal 200. Therefore, by abutting the pressing part 310 against the outer surface 230 of the power distribution terminal 200, the assembly and disassembly efficiency between the shorting element 100 and the power distribution terminal 200 can be improved, i.e., the assembly and disassembly efficiency can be increased.

[0051] See Figure 5In some embodiments, the power distribution terminal 200 is provided with multiple wiring holes 220, which are arranged in multiple rows on the power distribution terminal 200. Each row includes multiple live wire holes 220a and one neutral wire hole 220b. The live wire holes 220a are used to connect with the live wire, and the neutral wire hole 220b is used to connect with the neutral wire. It should be noted that each row may also include a ground wire hole. This allows multiple rows of live wires to be formed on the power distribution terminal 200, thereby improving the applicability of the energy storage converter 10 to various operating conditions.

[0052] See Figure 5 In some embodiments, the shorting hole 210 is located between two adjacent rows of wiring holes 220. This makes full use of the limited installation space on the power distribution terminal 200 and improves the rationality of the layout between the shorting hole 210 and the wiring hole 220. The shorting holes 210 can be arranged in multiple rows. The power distribution terminal 200 includes a partition wall 240, which defines the boundary between two adjacent shorting holes 210 in two adjacent rows. The thickness of the partition wall 240 is less than a set value, thus making the partition wall 240 have a small thickness. By setting the partition wall 240, the partition wall 240 can abut against the edge spring 420 of the mounting unit 400 in the second direction, so that the partition wall 240 plays a good limiting role for the mounting unit 400 in the second direction, improving the stability and reliability of the assembly of the shorting element 100. For example, the shorting holes 210 can be arranged in two rows, allowing two shorting elements 100 to be installed on the power distribution terminal 200, thus reasonably increasing the number of shorting elements 100. Furthermore, when two power distribution terminals 200, each with two rows of shorting holes 210, are used simultaneously, three shorting elements 100 can be provided. The first shorting element 100 can be inserted into the shorting hole 210 of one power distribution terminal 200, the second shorting element 100 can be inserted into the shorting hole 210 of the other power distribution terminal 200, and the third shorting element 100 can be inserted into the shorting holes 210 of both power distribution terminals 200 simultaneously. This allows the multi-phase power from the two power distribution terminals 200 to be converted into single-phase power output through three shorting elements 100, thereby improving the applicability of the energy storage converter 10 to various operating conditions. In other embodiments, the shorting holes 210 can be arranged in two or more rows, further increasing the number of shorting elements 100 and the applicability of the energy storage converter 10 to various operating conditions.

[0053] See Figure 5In some embodiments, the power distribution terminal 200 includes a first single-board interface 221, a second single-board interface 222, a third single-board interface 223, and a fourth single-board interface 224. The first single-board interface 221, the second single-board interface 222, and the third single-board interface 223 are live wire holes 220a, and the fourth single-board interface 224 is a neutral wire hole 220b. It can be understood that a row of wiring holes 220 includes the first single-board interface 221, the second single-board interface 222, the third single-board interface 223, and the fourth single-board interface 224. The shorting hole 210 includes a first power distribution interface 211, a second power distribution interface 212, a third power distribution interface 213, and a fourth power distribution interface 214. When the first power distribution interface 211, the second power distribution interface 212, and the third power distribution interface 213 are shorted, the phases of the first power distribution interface 211, the second power distribution interface 212, and the third power distribution interface 213 are consistent, thus enabling the shorting element 100 to convert multiphase electricity into single-phase electricity.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0055] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A shorting element, characterized in that, For insertion into power distribution terminals, the insertion direction of the shorting element is denoted as the first direction, and the first direction, the second direction, and the third direction are mutually perpendicular. The shorting element includes: The adapter unit includes an adapter portion and a pressing portion. The adapter portion protrudes from the pressing portion along a first direction, and the size of the pressing portion along the second direction is larger than the size of the adapter portion. Multiple installation units are provided, and these installation units are spaced apart along the third direction on the adapter. The multiple installation units are electrically connected to each other.

2. The shorting element according to claim 1, characterized in that, Along the second direction, the distance between the transition portion and the end of the pressing portion is 2mm to 3mm.

3. The shorting element according to claim 1, characterized in that, The adapter portion has a recessed groove near the pressure portion.

4. The shorting element according to claim 3, characterized in that, The two ends of the groove are respectively spaced at a set distance from the edge of the transition part; and / or, the width of the groove is 1.5mm to 2.5mm.

5. The shorting element according to claim 1, characterized in that, The adapter unit is an insulator, the mounting unit is a conductor, and / or; The multiple mounting units are connected by a conductive structure.

6. The shorting element according to claim 1, characterized in that, The mounting unit includes a support portion and two edge springs. The support portion is inserted into the adapter portion, and the edge springs protrude from the support portion along the first direction, with the two edge springs spaced apart along the second direction.

7. The shorting element according to claim 6, characterized in that, The mounting unit includes a central spring and two edge springs. The central spring is spaced apart between the two edge springs, and the central spring and the two edge springs are connected at one end near the adapter unit.

8. The shorting element according to claim 7, characterized in that, The outer surface of the edge spring in the second direction includes a first connecting segment and a second connecting segment whose ends are connected to each other. The second connecting segment is connected to the end face of the free end of the edge spring perpendicular to the first direction. The distance from the first connecting segment to the intermediate spring is greater than the distance from the second connecting segment to the intermediate spring. Along the first direction from the adapter unit to the mounting unit, the distance from the first connecting segment to the intermediate spring is equal, and the distance from the second connecting segment to the intermediate spring is decreasing.

9. The shorting element according to claim 8, characterized in that, The outer surface also includes a third connecting segment, and the first connecting segment is connected between the third connecting segment and the second connecting segment. The distance from the first connecting segment to the intermediate spring is greater than the distance from the third connecting segment to the intermediate spring. Along the first direction from the adapter unit to the mounting unit, the distance from the third connecting segment to the intermediate spring increases.

10. The shorting element according to claim 7, characterized in that, Both the intermediate spring and the edge spring have through holes, which penetrate the intermediate spring and the edge spring along the second direction.

11. An energy storage converter, characterized in that, The device includes a power distribution terminal and a shorting element as described in any one of claims 1 to 10. The outer surface of the power distribution terminal is recessed to form a plurality of shorting holes, and a plurality of the mounting units are respectively inserted into different shorting holes. The pressing part abuts against the outer surface of the power distribution terminal.

12. The energy storage converter according to claim 11, characterized in that, The power distribution terminal is provided with multiple wiring holes, which are arranged in multiple rows on the power distribution terminal. Each row includes multiple live wire holes and one neutral wire hole. The live wire holes are used to connect with the live wire, and the neutral wire hole is used to connect with the neutral wire.

13. The energy storage converter according to claim 12, characterized in that, The shorting hole is located between two adjacent rows of wiring holes.

14. The energy storage converter according to claim 13, characterized in that, The shorting holes are arranged in multiple rows, and the power distribution terminal includes a partition wall that simultaneously defines the boundaries of two adjacent shorting holes in two adjacent rows. The thickness of the partition wall is less than a set value.

15. The energy storage converter according to claim 12, characterized in that, The power distribution terminal includes a first board interface, a second board interface, a third board interface, and a fourth board interface. The first board interface, the second board interface, and the third board interface are the live wire holes, and the fourth board interface is the neutral wire hole; and / or, The shorting hole includes a first power distribution interface, a second power distribution interface, a third power distribution interface, and a fourth power distribution interface; when the first power distribution interface, the second power distribution interface, and the third power distribution interface are shorted, the phases of the first power distribution interface, the second power distribution interface, and the third power distribution interface are consistent.

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