Energy storage power supply

Abstract

The utility model relates to an energy storage power supply, which comprises a battery module; the interface assembly comprises a circuit substrate, a first parallel operation connecting seat, a second parallel operation connecting seat and an electric connecting part, the first parallel operation connecting seat and the second parallel operation connecting seat are connected with the circuit substrate, the circuit substrate is located on the side, away from the first parallel operation connecting seat and / or the second parallel operation connecting seat, of the electric connecting part, and the circuit substrate is connected with the battery module; wherein the first parallel operation connecting seat and the second parallel operation connecting seat are connected with the battery module through the electric connecting part, the first parallel operation connecting seat is used for being connected with the capacity expansion battery pack, and the second parallel operation connecting seat is used for being connected with the generator; the electric connecting part comprises a first metal connecting plate and a second metal connecting plate, the two ends of the first metal connecting plate are connected with one end of the first parallel operation connecting base and one end of the second parallel operation connecting base respectively, and the two ends of the second metal connecting plate are connected with the other end of the first parallel operation connecting base and the other end of the second parallel operation connecting base respectively.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage devices, in particular to an energy storage power supply. BACKGROUND

[0002] Global energy transformation and renewable energy application drive the growth of energy storage technology demand. Energy storage products diversify functions, especially expand pack and oil engine parallel functions to improve system flexibility and reliability. The expand pack parallel function increases energy storage capacity or power by adding an expand pack, and the oil engine parallel function combines a fuel generator as a backup power supply. Both are often used simultaneously, especially in places with high energy stability requirements. However, currently, these two functions are developed independently, resulting in redundant structural components, increased costs, and wasted space. Therefore, achieving high integration is a key issue in the research and development of energy storage technology. SUMMARY

[0003] The present application provides an energy storage power supply that can effectively reduce the redundancy and cost waste of structural components and improve the integration of energy storage devices.

[0004] To achieve the above purpose, the present application provides the following technical scheme:

[0005] An energy storage power supply, comprising:

[0006] a battery module; and

[0007] an interface assembly comprising a circuit substrate, a first parallel connection seat, a second parallel connection seat, and an electrical connection portion, the first parallel connection seat and the second parallel connection seat being connected to the circuit substrate, the circuit substrate being located on the side of the electrical connection portion away from the first parallel connection seat and / or the second parallel connection seat, and the circuit substrate being connected to the battery module;

[0008] wherein the first parallel connection seat and the second parallel connection seat are connected to the battery module through the electrical connection portion, the first parallel connection seat is used to connect an expandable battery pack, and the second parallel connection seat is used to connect a generator;

[0009] The electrical connection portion comprises a first metal connecting plate and a second metal connecting plate, both ends of the first metal connecting plate being connected to one end of the first parallel connection seat and one end of the second parallel connection seat, respectively, and both ends of the second metal connecting plate being connected to the other end of the first parallel connection seat and the other end of the second parallel connection seat, respectively.

[0010] In a possible implementation, the first parallel connection seat has a first positive terminal and a first negative terminal, and the second parallel connection seat has a second positive terminal and a second negative terminal, the first positive terminal and the second positive terminal are connected with the first metal connecting plate respectively, and the first negative terminal and the second negative terminal are connected with the second metal connecting plate respectively.

[0011] In a possible implementation, the first parallel connection seat and the second parallel connection seat are arranged side by side along a first direction, the first positive terminal and the second negative terminal are arranged adjacent to each other, the first negative terminal is arranged on a side of the first positive terminal away from the second positive terminal, and the second positive terminal is arranged on a side of the second negative terminal away from the first positive terminal, the first direction is parallel to a horizontal direction when the energy storage power supply is placed.

[0012] In a possible implementation, the first parallel connection seat and the second parallel connection seat are arranged side by side along a first direction, the first positive terminal and the second negative terminal are arranged adjacent to each other, the first negative terminal is arranged on a side of the first positive terminal away from the second positive terminal, and the second positive terminal is arranged on a side of the second negative terminal away from the first positive terminal, the first direction is parallel to a horizontal direction when the energy storage power supply is placed.

[0013] In a possible implementation, the first metal connecting plate comprises a first connecting portion, a first intermediate portion and a second connecting portion connected in sequence and coplanar, the first connecting portion is connected with the first positive terminal, the second connecting portion is connected with the second positive terminal, two ends of the first intermediate portion are connected with the first connecting portion and the second connecting portion respectively, the extension direction of the first connecting portion is the same as the extension direction of the second connecting portion, and the extension direction of the first intermediate portion intersects with the first connecting portion or the second connecting portion;

[0014] The second metal connecting plate comprises a third connecting portion, a second intermediate portion and a fourth connecting portion connected in sequence and coplanar, the third connecting portion is connected with the first negative terminal, the fourth connecting portion is connected with the second negative terminal, two ends of the second intermediate portion are connected with the third connecting portion and the fourth connecting portion respectively, the extension direction of the third connecting portion is the same as the extension direction of the fourth connecting portion, and the extension direction of the second intermediate portion intersects with the third connecting portion or the fourth connecting portion;

[0015] The first intermediate portion and the second intermediate portion are arranged away from each other.

[0016] In a possible implementation, the first parallel connection seat and the second parallel connection seat are arranged side by side along a second direction, and the first positive electrode end and the second positive electrode end are arranged on the same side, the first negative electrode end and the second negative electrode end are arranged on the same side, and the first metal connecting plate and the second metal connecting plate are arranged between the first parallel connection seat and the second parallel connection seat respectively, and the second direction is perpendicular to the horizontal direction when the energy storage power supply is placed.

[0017] In a possible implementation, the first metal connecting plate vertically extends along the second direction, one end of the first metal connecting plate is connected with the first positive electrode end, and the other end of the first metal connecting plate is connected with the second positive electrode end.

[0018] The second metal connecting plate vertically extends along the second direction, one end of the second metal connecting plate is connected with the first negative electrode end, and the other end of the second metal connecting plate is connected with the second negative electrode end.

[0019] In a possible implementation, the first parallel connection seat comprises at least one first connecting column and at least one second connecting column; the first connecting column has a first free end and a first connecting end, the first free end is arranged to be electrically connected with the capacity expansion battery pack, and the first connecting end is riveted with the first metal connecting plate; the second connecting column has a second free end and a second connecting end, the second free end is arranged to be electrically connected with the capacity expansion battery pack, and the second connecting end is riveted with the second metal connecting plate; wherein the first connecting column is configured as the first positive electrode end, and the second connecting column is configured as the first negative electrode end.

[0020] The second parallel connection seat comprises at least one third connecting column and at least one fourth connecting column; the third connecting column has a third free end and a third connecting end, the third free end is arranged to be connected with the generator, and the third connecting end is riveted with the first metal connecting plate; the fourth connecting column has a fourth free end and a fourth connecting end, the fourth free end is arranged to be connected with the generator, and the fourth connecting end is riveted with the second metal connecting plate; wherein the third connecting column is configured as the second positive electrode end, and the fourth connecting column is configured as the second negative electrode end.

[0021] In a possible implementation, the first parallel connection seat is formed with a first plug hole and a second plug hole, and the second parallel connection seat is formed with a third plug hole and a fourth plug hole.

[0022] The first metal connecting plate has a first bending section and a second bending section, the first bending section is connected with the first connecting part and is bent along a direction perpendicular to a plane where the first connecting part is located, the first bending section is inserted into the first insertion hole to form an interference fit, the second bending section is connected with the second connecting part and is bent along a direction perpendicular to a plane where the second connecting part is located, and the second bending section is inserted into the third insertion hole to form an interference fit; wherein the first bending section is configured as the first positive electrode end, and the second bending section is configured as the second positive electrode end.

[0023] The second metal connecting plate has a third bending section and a fourth bending section, the third bending section is connected with the third connecting part and is bent along a direction perpendicular to a plane where the third connecting part is located, the third bending section is inserted into the second insertion hole to form an interference fit, the fourth bending section is connected with the fourth connecting part and is bent along a direction perpendicular to a plane where the fourth connecting part is located, and the fourth bending section is inserted into the fourth insertion hole to form an interference fit; wherein the third bending section is configured as the first negative electrode end, and the fourth bending section is configured as the second negative electrode end.

[0024] In a possible implementation, the first parallel machine connecting seat is provided with a first signal connecting part, one end of the first signal connecting part is connected with the capacity expansion battery pack, and the other end of the first signal connecting part is inserted with the circuit substrate.

[0025] The second parallel machine connecting seat is provided with a second signal connecting part, one end of the second signal connecting part is connected with the generator, and the other end of the second signal connecting part is inserted with the circuit substrate.

[0026] The energy storage power supply provided by the utility model realizes flexible expansion of energy storage capacity and effective integration with external energy, and provides strong support for modern energy management system. By using the same first metal connecting plate and the same second metal connecting plate, electrical connection with the first parallel machine connecting seat and the second parallel machine connecting seat is established, the performance of the energy storage power supply in electrical safety is enhanced, and when the capacity expansion battery pack and the generator connection interface assembly are connected, signal transmission is realized through the same circuit substrate, the design is highly integrated, the redundancy of structural parts and the cost waste are effectively reduced, the system space layout is optimized, and the overall performance and reliability are improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the application and, together with the description, further serve to explain the principles of the application. In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings provided below only illustrate some embodiments of the present application, and for those skilled in the field, other drawings can be obtained based on these drawings without creative effort. One or more embodiments are exemplarily illustrated by the pictures in the drawings corresponding to the embodiments, and the exemplarily illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified. The drawings in the drawings do not constitute a proportional limitation.

[0028] Figure 1 A structural schematic diagram of an interface assembly according to an example embodiment;

[0029] Figure 2 A structural schematic diagram of a circuit substrate according to an example embodiment;

[0030] Figure 3 An exploded schematic diagram of an interface assembly according to an example embodiment;

[0031] Figure 4 A structural schematic diagram of an electrical connection portion according to an example embodiment;

[0032] Figure 5 A structural schematic diagram of an interface assembly according to an example embodiment;

[0033] Figure 6 A structural schematic diagram of an interface assembly according to an example embodiment;

[0034] Figure 7 A structural schematic diagram of an interface assembly according to an example embodiment;

[0035] Figure 8 A structural schematic diagram of an interface assembly according to an example embodiment;

[0036] Figure 9 A structural schematic diagram of an interface assembly according to an example embodiment.

[0037] Legend of reference signs:

[0038] 1. Interface assembly; 11. Circuit board; 111. Connector; 112. Clearance through hole; 12. First parallel connection socket; 121. First positive terminal; 122. First negative terminal; 123. First connecting post; 1231. First free end; 1232. First connecting end; 124. Second connecting post; 1241. Second free end; 1242. Second connecting end; 125. First base body; 1251. First connecting cavity; 1252. First groove; 12521. First slot; 12522. Second slot; 1253. Connecting ear; 126. First signal connection part; 1261. Signal pin; 1262. Plug; 12621. Through hole; 127. First plug hole; 128. Second plug hole; 13. Second parallel connection socket; 131. Second positive terminal; 132. Second negative terminal; Extreme; 133, Third connecting post; 1331, Third free end; 1332, Third connecting end; 134, Fourth connecting post; 1341, Fourth free end; 1342, Fourth connecting end; 135, Second seat; 1351, Second connecting cavity; 1352, Second groove; 136, Second signal connection part; 137, Third insertion hole; 138, Fourth insertion hole; 14, Electrical connection part; 141, First metal connecting plate; 1411, First bending section; 1412, Second bending section; 1413, First connecting part; 1414, First intermediate part; 1415, Second connecting part; 142, Second metal connecting plate; 1421, Third bending section; 1422, Fourth bending section; 1423, Third connecting part; 1424, Second intermediate part; 1425, Fourth connecting part; 15, Bracket. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0041] For the convenience of description, spatial relative terms can be used herein to describe the relative position relationship or movement condition of one element or feature relative to another element or feature as shown in the drawings, such as "inner", "outer", "inboard", "outboard", "under", "below", "on", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over or the posture is changed or the movement state is changed, the directional indications will also change accordingly, for example: the element described as "under" or "below" another element or feature will be oriented as "above" or "above" another element or feature. Therefore, the example term "below" can include both up and down positions. The device can be additionally oriented (rotated by 90 degrees or in other directions) and the spatial relative relationship descriptors used herein are interpreted accordingly.

[0042] In one embodiment, as shown in Figures 1-4 An energy storage power supply is used to expand the capacity of energy storage devices or increase the power output to meet the growing energy demand, especially in application scenarios that require high energy density and reliable power supply. The energy storage power supply includes a battery module (not shown in the figure) and an interface assembly 1. The battery module contains a plurality of lithium-ion battery cells or other types of energy storage units, which are monitored and protected by a precise battery management system (BMS) to ensure safe and efficient energy storage and release.

[0043] The interface assembly 1 includes a circuit board 11, a first parallel connection seat 12, a second parallel connection seat 13, and an electrical connection part 14. The first parallel connection seat 12 and the second parallel connection seat 13 are connected with the circuit board 11. The circuit board 11 is located on the side of the electrical connection part 14 away from the first parallel connection seat 12. The circuit board 11 is connected with the battery module.

[0044] It should be noted that the circuit board 11 can also be located on the side of the electrical connection part 14 away from the second parallel connection seat 13; or the circuit board 11 is located on the side of the first parallel connection seat 12 and the second parallel connection seat 13 at the same time. The circuit board 11 is used to establish a connection relationship with the first parallel connection seat 12 and the second parallel connection seat 13 and the battery module respectively. The specific setting mode is subject to the actual situation.

[0045] The circuit board 11 is made of high-quality circuit board material, which integrates necessary electronic components and complex circuits to achieve effective management of the battery module and communication with external devices. Among them, the circuit board 11 is provided with a connector 111 designed with standard or proprietary interface to ensure stable and high-speed data communication transmission between the battery module.

[0046] The first and second parallel machine connection seats 12 and 13 are connected to the battery module through the electrical connection part 14 to establish physical and electrical connection, ensuring that the electrical energy output by the battery module can be smoothly introduced into the interface assembly 1.

[0047] The first parallel machine connection seat 12 is used to connect the expansion battery pack (not shown in the figure), which includes at least one battery pack as a replaceable or stackable expansion unit integrated into the energy storage system. The battery pack may contain multiple lithium-ion battery cells or other types of energy storage units, and the battery pack can be monitored and protected by a precise battery management system (BMS) to ensure safe and efficient energy storage and release. The design of the expansion battery pack allows users to flexibly increase or decrease the number of battery packs according to actual needs, thereby adjusting the energy storage capacity and power output capability of the entire energy storage system. The expansion battery pack is different from the battery module and is equivalent to another energy storage power supply, effectively expanding the energy storage capacity of the energy storage system.

[0048] The second parallel machine connection seat 13 serves to connect with the generator (not shown in the figure), allowing the energy storage power supply to draw supplemental power from the external generator when necessary, enhancing the flexibility and self-sufficiency of the system.

[0049] The electrical connection part 14 is made of high-conductivity copper or other suitable materials, and its main function is to build an efficient large-current charging and discharging circuit. On the one hand, the electrical connection part 14 is closely connected with the first parallel machine connection seat 12 and the battery module, guiding the electrical energy generated by the expansion battery pack to the battery module or supplementing the electrical energy generated by the battery module to the expansion battery pack; on the other hand, it is also connected with the second parallel machine connection seat 13 and the generator, so that the energy storage power supply can obtain power from the generator when needed.

[0050] In normal working state, the battery module communicates data with the circuit board 11 through the connector 111, and the control system on the circuit board 11 intelligently adjusts the charging and discharging process of the battery module and the expansion battery pack according to the information provided by the BMS. At the same time, the electrical connection part 14 ensures that electrical energy can flow smoothly between the battery module, the interface assembly 1, the expansion battery pack, and the connected generator, forming a closed-loop energy management system. This design not only improves energy utilization efficiency, but also enhances the reliability and adaptability of the system, meeting the needs of various complex application scenarios.

[0051] The energy storage power supply of the embodiment realizes flexible expansion of energy storage capacity and effective integration with external energy through modular design and high-efficiency interface assembly 1. Through highly integrated design, not only can the redundancy of structural parts and cost waste be effectively reduced, but also the system space layout can be optimized, and the overall performance and reliability can be improved.

[0052] In one embodiment, as shown in Figures 1-4 The energy storage power supply has a first direction (refer to X-axis shown in Figure 1 a second direction (refer to Z-axis shown in Figure 1 and a third direction (refer to Y-axis shown in Figure 1 The first direction, the second direction and the third direction are perpendicular to each other, providing a clear spatial reference for the internal component layout of the energy storage power supply. Among them, the first direction is parallel to the horizontal direction when the energy storage power supply is placed, the second direction is perpendicular to the horizontal direction when the energy storage power supply is placed, and the third direction is parallel to the horizontal direction when the energy storage power supply is placed.

[0053] The electrical connection part 14 is used to connect each functional module, and the electrical connection part 14 includes, for example, a first metal connecting plate 141 and a second metal connecting plate 142, which are arranged opposite to each other along the second direction, ensuring the stability of electrical connection and avoiding mutual interference of internal components. Among them, the two ends of the first metal connecting plate 141 are respectively connected with one end of the first parallel machine connecting seat 12 and one end of the second parallel machine connecting seat 13, and the two ends of the second metal connecting plate 142 are respectively connected with the other end of the first parallel machine connecting seat 12 and the other end of the second parallel machine connecting seat 13, thereby establishing electrical connection.

[0054] Exemplarily, the first parallel machine connecting seat 12 has a first positive terminal 121 and a first negative terminal 122, and the second parallel machine connecting seat 13 has a second positive terminal 131 and a second negative terminal 132, the first positive terminal 121 and the second positive terminal 131 are respectively connected with the first metal connecting plate 141, and the first negative terminal 122 and the second negative terminal 132 are respectively connected with the second metal connecting plate 142. This connection mode ensures the effective communication between the positive and negative inside the energy storage power supply, thereby realizing stable transmission and distribution of electric energy. At the same time, since the first metal connecting plate 141 and the second metal connecting plate 142 are respectively used for positive and negative connection, this design also enhances the performance of the energy storage power supply in electrical safety.

[0055] The energy storage power supply in this embodiment realizes efficient and stable electrical connection between internal components through the electrical connection part 14, which not only improves the overall performance of the energy storage power supply, but also provides a strong guarantee for its stable operation in various application scenarios. By using the same first metal connecting plate 141 and the same second metal connecting plate 142, electrical connection with the first parallel machine connection seat 12 and the second parallel machine connection seat 13 is established, enhancing the performance of the energy storage power supply in terms of electrical safety, and when connecting the expansion battery pack and the generator connection interface component 1, signal transmission is realized through the same circuit board 11, increasing the highly integrated design, which not only effectively reduces the redundancy of structural parts and waste of cost, but also optimizes the spatial layout of the system, improves the overall performance and reliability.

[0056] In this embodiment, as shown in Figures 1-4 , the first parallel machine connection seat 12 and the second parallel machine connection seat 13 are arranged side by side along the first direction, and this layout makes the two parallel machine connection seats compact and orderly in space, facilitating electrical connection and heat dissipation management.

[0057] The first positive terminal 121 and the second negative terminal 132 are arranged adjacent to each other, which helps to reduce space occupation and makes the interface part of the energy storage power supply more compact. The first negative terminal 122 is arranged on the side of the first positive terminal 121 away from the second negative terminal 132, and the second positive terminal 131 is arranged on the side of the second negative terminal 132 away from the first positive terminal 121, which not only maintains the clarity and easy identification of the interface, but also helps to avoid confusion or errors that may occur during connection.

[0058] The first parallel machine connection seat 12 and the second parallel machine connection seat 13 have the same structure, which means they can be produced modularly. Modular production not only improves production efficiency, but also reduces production cost, making the electrical connection part 14 of the energy storage power supply more easily maintained and upgraded.

[0059] In one of the embodiments, as shown in Figures 1-4 , the first metal connecting plate 141 and the second metal connecting plate 142 are arranged on both sides of the first parallel machine connection seat 12 along the first direction, which not only ensures the stability of electrical connection, but also effectively utilizes space and avoids mutual interference of internal components.

[0060] Exemplarily, the first metal connecting plate 141 comprises a first connecting portion 1413, a first intermediate portion 1414 and a second connecting portion 1415 connected in sequence and coplanar, wherein the first connecting portion 1413 is connected with the first positive electrode end 121, the second connecting portion 1415 is connected with the second positive electrode end 131, two ends of the first intermediate portion 1414 are connected with the first connecting portion 1413 and the second connecting portion 1415 respectively, the extension direction of the first connecting portion 1413 is the same as that of the second connecting portion 1415, and the extension direction of the first intermediate portion 1414 intersects with that of the first connecting portion 1413 or the second connecting portion 1415. For example, the first intermediate portion 1414 is configured in a U shape between the first connecting portion 1413 and the second connecting portion 1415, the first connecting portion 1413 can protrude beyond the edge of the first parallel machine connecting seat 12, the second connecting portion 1415 can protrude beyond the edge of the second parallel machine connecting seat 13, so that the first intermediate portion 1414 protrudes beyond the edges of the first parallel machine connecting seat 12 and the second parallel machine connecting seat 13.

[0061] The structure of the second metal connecting plate 142 is the same as or similar to that of the first metal connecting plate 141, that is, the second metal connecting plate 142 comprises a third connecting portion 1423, a second intermediate portion 1424 and a fourth connecting portion 1425 connected in sequence and coplanar. Among them, the third connecting portion 1423 is connected with the first negative electrode end 122, the fourth connecting portion 1425 is connected with the second negative electrode end 132, two ends of the second intermediate portion 1424 are connected with the third connecting portion 1423 and the fourth connecting portion 1425 respectively, the extension direction of the third connecting portion 1423 is the same as that of the fourth connecting portion 1425, and the extension direction of the second intermediate portion 1424 intersects with that of the third connecting portion 1423 or the fourth connecting portion 1425. For example, the second intermediate portion 1424 is configured in a U shape between the third connecting portion 1423 and the fourth connecting portion 1425, the third connecting portion 1423 can protrude beyond the edge of the first parallel machine connecting seat 12, the fourth connecting portion 1425 can protrude beyond the edge of the second parallel machine connecting seat 13, so that the second intermediate portion 1424 protrudes beyond the edges of the first parallel machine connecting seat 12 and the second parallel machine connecting seat 13.

[0062] The first metal connecting plate 141 and the second metal connecting plate 142 are both U-shaped, and the openings of the first metal connecting plate 141 and the second metal connecting plate 142 are oppositely arranged, so that the first intermediate part 1414 and the second intermediate part 1424 are arranged away from each other. The design of U-shaped not only increases the strength and stability of the connecting plate, but also prolongs the path of the connecting plate, so that the first metal connecting plate 141 and the second metal connecting plate 142 are away from each other in space, thereby further improving the electrical safety performance. Since the first metal connecting plate 141 and the second metal connecting plate 142 are respectively responsible for transmitting positive voltage and negative voltage of large current, if they are too close, it may cause electrical safety problems. Therefore, by prolonging the path of the connecting plate and making it away from each other, this risk can be effectively reduced. Among them, the structure form of the first metal connecting plate 141 and the structure form of the second metal connecting plate 142 can be completely the same, that is, the same mold can be used for production, thereby reducing the types and quantities of molds. This design improves production efficiency, reduces production cost, and also facilitates subsequent maintenance and replacement work.

[0063] Of course, according to actual needs, the first metal connecting plate 141 and the second metal connecting plate 142 can also be arranged on the two sides of the second parallel machine connecting seat 13, and their shapes can also be changed, such as C-shaped, etc. This flexibility allows the design of the electrical connection part 14 to be adjusted and optimized according to different application scenarios.

[0064] The energy storage power supply in the embodiment realizes efficient, stable and safe electrical connection through the layout of the electrical connection part through the parallel machine connecting seat and the metal connecting plate, and the concept of modular production. This design not only improves the overall performance of the energy storage power supply, but also provides a strong guarantee for its stable operation in various application scenarios.

[0065] In one of the embodiments, as shown in Figures 1-4 The first parallel machine connecting seat 12 includes at least one first connecting column 123 and at least one second connecting column 124, which can realize reliable connection with the expansion battery pack, for example, the first parallel machine connecting seat 12 as a female seat, using the first connecting column 123 and the second connecting column 124 to plug with the male seat of the expansion battery pack, thereby realizing electrical connection.

[0066] Among them, at least one first connecting column 123 has a first free end 1231 and a first connecting end 1232, the first free end 1231 is arranged to be connected with the positive electrode of the expansion battery pack, to ensure that the current can flow smoothly from the expansion battery pack into the first parallel machine connecting seat 12. The first connecting end 1232 is electrically connected with the first metal connecting plate 141 by riveting, which not only ensures the firmness of the connection, but also provides good electrical conductivity.

[0067] Similarly, the at least one second connecting column 124 has a second free end 1241 and a second connecting end 1242, the second free end 1241 is arranged to be connected with the negative electrode of the capacity expansion battery pack, and the second connecting end 1242 is electrically connected with the second metal connecting plate 142 by riveting. The first parallel connection seat 12 establishes reliable electrical connection with the positive and negative electrodes of the capacity expansion battery pack through the first connecting column 123 and the second connecting column 124.

[0068] Among them, the first connecting column 123 is configured as the first positive electrode end 121, and the second connecting column 124 is configured as the first negative electrode end 122, so that the first parallel connection seat 12 can clearly identify the positive and negative electrode ends, and facilitate correct wiring during parallel connection.

[0069] The design logic of the second parallel connection seat 13 is the same as that of the above-mentioned first parallel connection seat 12, except that the connection object is different. The second parallel connection seat 13 is used to connect the generator. The second parallel connection seat 13 includes at least one third connecting column 133 and at least one fourth connecting column 134.

[0070] The at least one third connecting column 133 has a third free end 1331 and a third connecting end 1332, the third free end 1331 is arranged to be connected with the positive electrode of the generator, and the third connecting end 1332 is electrically connected with the first metal connecting plate 141 by riveting. The positive current generated by the generator can flow into the second parallel connection seat 13 through the third connecting column 133, and be connected in parallel with other capacity expansion battery packs through the first metal connecting plate 141.

[0071] Similarly, the at least one fourth connecting column 134 has a fourth free end 1341 and a fourth connecting end 1342, the fourth free end 1341 is arranged to be connected with the negative electrode of the generator, and the fourth connecting end 1342 is electrically connected with the second metal connecting plate 142 by riveting. The negative current generated by the generator can flow into the second parallel connection seat 13 through the fourth connecting column 134, and be connected in parallel with other capacity expansion battery packs through the second metal connecting plate 142.

[0072] Among them, the third connecting column 133 is configured as the second positive electrode end 131, and the fourth connecting column 134 is configured as the second negative electrode end 132, so that the second parallel connection seat 13 can also clearly identify the positive and negative electrode ends, and facilitate correct wiring during parallel connection.

[0073] It should be noted that the number of the first connecting column 123, the second connecting column 124, the third connecting column 133 and the fourth connecting column 134 can be designed according to actual situation, such as each being provided with two and being arranged at intervals, which can realize effective electrical connection and positioning.

[0074] It should be noted that the connecting column, when installed, can pass through the electrical connection part 14 to the circuit board 11, thereby improving the reliability of the riveting of the connecting column and the electrical connection part 14, and further providing a more stable mechanical connection. The penetration of the connecting column through the circuit board 11 also helps to improve the heat dissipation performance of the assembly, as the connecting column can serve as part of the heat conduction path. The circuit board 11 can cause a short circuit due to direct contact with the connecting column. In order to avoid this risk, the circuit board 11 is provided with a plurality of avoidance through holes 112, which are respectively corresponding to the first connecting column 123, the second connecting column 124, the third connecting column 133, and the fourth connecting column 134, and are arranged with gaps. The avoidance through holes 112 are provided to ensure that the connecting column does not directly contact any electrical circuit or element on the circuit board 11 when penetrating the circuit board 11. The avoidance through holes 112 correspond one-to-one to the connecting columns, and are provided with sufficient gaps to form a mutually avoiding space, which not only improves the electrical safety of the assembly, but also ensures the stable operation of the entire electrical system.

[0075] The electrical connection design provided by the embodiment realizes reliable parallel connection between the expansion battery pack and the generator through the parallel connection seat and the connecting column. At the same time, the riveting method used for electrical connection not only ensures the firmness of the connection, but also provides good electrical conductivity. This electrical connection design is not only suitable for the parallel connection of the energy storage system and the generator, but also can be widely applied to other occasions where multiple expansion battery packs need to be connected in parallel.

[0076] In the embodiment, as shown in Figures 1-4 The first parallel connection seat 12 includes a first seat body 125, which is recessed from the third direction towards the direction of the electrical connection part 14, so that a space is formed inside the first seat body 125, i.e. a first connecting cavity 1251 is constructed, which is arranged to accommodate the first positive terminal 121 and the first negative terminal 122. The first connecting cavity 1251 not only provides a physical accommodation space for the first positive terminal 121 and the first negative terminal 122, but also provides the necessary space for the male seat (i.e. the socket part) of the expansion battery pack, so that the first parallel connection seat 12 can be connected with the expansion battery pack through plug-in connection, ensuring the reliability and stability of the electrical connection. During the plug-in process, the male seat of the expansion battery pack can be easily inserted into the first connecting cavity 1251, and form close electrical contact with the first positive terminal 121 and the first negative terminal 122. This contact method not only ensures smooth transmission of current, but also effectively prevents electrical failure caused by poor contact.

[0077] The structure of the second parallel machine connecting seat 13 is the same as that of the first parallel machine connecting seat 12, and the difference is that the second parallel machine connecting seat 13 is connected with the generator. The second parallel machine connecting seat 13 comprises a second seat body 135, which is recessed from the third direction to the direction of the electrical connection part 14 to form a second connecting cavity 1351, which is arranged to accommodate the second positive electrode end 131 and the second negative electrode end 132. The second connecting cavity 1351 not only provides a physical accommodation space for the second positive electrode end 131 and the second negative electrode end 132, but also provides the necessary space for the male seat (i.e. the socket part) of the generator, so that the second parallel machine connecting seat 13 and the generator are connected by plugging, ensuring the reliability and stability of the electrical connection.

[0078] Through the above design, the first parallel machine connecting seat 12 and the second parallel machine connecting seat 13 not only realize effective connection with the expansion battery pack and the generator respectively, but also ensure the stability and reliability of the entire electrical system through the plugging mode. This plugging connection mode not only facilitates installation and disassembly, but also facilitates system maintenance and upgrading. When the expansion battery pack or the generator needs to be replaced or repaired, the user only needs to simply pull out the plug on the parallel machine connecting seat to easily complete the replacement or repair work.

[0079] In this embodiment, as shown in Figures 1-4 The first parallel machine connecting seat 12 is provided with a first signal connecting part 126, which can be arranged on the first seat body 125, for example. One end of the first signal connecting part 126 is connected with the expansion battery pack, and the other end of the first signal connecting part 126 is plugged through the first seat body 125 with the circuit substrate 11. The first signal connecting part 126 can be stably installed on the first seat body 125 and maintain effective connection with the expansion battery pack and the circuit substrate 11.

[0080] The first signal connecting part 126 comprises a plurality of signal pins 1261 and a plugging block 1262, which cooperate to realize stable transmission of signals. The plugging block 1262 is provided with a plurality of through holes 12621, and the signal pins 1261 correspond one-to-one with the through holes 12621. One end of the signal pin 1261 is plugged into the corresponding through hole 12621, ensuring the continuity and stability of the signal. The other end of the signal pin 1261 is interference-fitted with the circuit substrate 11, ensuring a tight electrical connection and preventing signal interference or loss during transmission. The plugging block 1262 is similar to a trapezoidal shape, which not only enhances its structural strength, but also provides an intuitive plugging direction identification function. When installing or disassembling, the user can easily determine the correct plugging direction according to the shape of the plugging block 1262, thereby avoiding damage or failure caused by incorrect plugging direction.

[0081] The second parallel machine connecting seat 13 is provided with a second signal connecting part 136. The second signal connecting part 136 is provided on the second seat body 135 for example. One end of the second signal connecting part 136 is connected with the generator, and the other end of the second signal connecting part 136 is inserted into the circuit substrate 11 through the second seat body 135. The second signal connecting part 136 is mainly used for receiving the signal generated by the generator, so that the generator can be conveniently connected with the circuit system to realize the exchange of signals. The second parallel machine connecting seat 13 is provided in the same or similar manner as the first parallel machine connecting seat 12, and details are not repeated here.

[0082] In one embodiment, as shown in Figures 1-4 The first seat body 125 is provided with two first grooves 1252 on the side away from the first connecting cavity 1251. The first grooves 1252 are used to form a corresponding relationship with the first metal connecting plate 141 and the second metal connecting plate 142 of the electric connecting part 14.

[0083] The two first grooves 1252 correspond one-to-one to the first metal connecting plate 141 and the second metal connecting plate 142, so that part of the structure of the first metal connecting plate 141 is embedded in one of the first grooves 1252, and part of the structure of the second metal connecting plate 142 is embedded in the other first groove 1252, improving the compactness and aesthetics of the overall structure.

[0084] In order to further enhance the positioning effect, each first groove 1252 includes a first groove body 12521 and a second groove body 12522, which are connected and communicated. The first groove body 12521 is rectangular in shape, providing a stable support and positioning basis, and the second groove body 12522 is arc-shaped, ensuring that the electric connecting part 14 can be firmly embedded in the first groove 1252 and avoiding falling off under vibration or external force.

[0085] During installation, the first metal connecting plate 141 and the second metal connecting plate 142 are respectively embedded into the corresponding first grooves 1252. As the installation proceeds, the first groove body 12521 provides preliminary linear guidance and positioning, and the second groove body 12522 further locks the electric connecting part 14 in the first groove 1252 by virtue of its arc-shaped design, achieving stable limiting installation.

[0086] The second seat body 135 is provided with two second grooves 1352 on the side away from the second connecting cavity 1351, and the two second grooves 1352 are respectively embedded with part of the structure of the first metal connecting plate 141 and part of the structure of the second metal connecting plate 142. The arrangement mode of the second seat body 135 is the same as or similar to that of the first seat body 125, and here, it will not be repeated. The design logic of the second groove 1352 can be similar to that of the first groove 1252, but the specific shape or size can be adjusted according to the specific structure and size of the second metal connecting plate 142.

[0087] Through the above design, the first seat body 125 and the second seat body 135 not only realize effective connection and limiting installation with the electrical connection part 14 respectively, but also have compact and beautiful structure, and are easy to install and maintain.

[0088] In one embodiment, as shown in Figures 1-4 The interface assembly 1 further comprises a plurality of fasteners (not shown in the figure) and a bracket 15, and the first seat body 125 and the second seat body 135 are respectively connected with the bracket 15 through the fasteners.

[0089] One end of the fastener needs to be reliably connected with the first seat body 125 or the second seat body 135, and the other end is tightly combined with the bracket 15, so as to ensure the stability of the whole assembly. The specific form of the fastener can be a screw, a screw, a bolt, etc. These fasteners are widely used because of their good fastening effect and easy operation characteristics.

[0090] For example, the first seat body 125 is further illustrated. The first seat body 125 is provided with two connecting ears 1253, which are symmetrically arranged at both ends of the first seat body 125 along the second direction, which not only enhances the structural strength of the first seat body 125, but also provides ideal positioning points for the installation of the fastener.

[0091] During installation, one end of the fastener will pass through the reserved hole of the connecting ear 1253 and be screwed with the corresponding screw hole on the bracket 15. This connection method is not only simple and efficient, but also can ensure the firm connection between the first seat body 125 and the bracket 15, and can maintain the stability of the structure even under vibration or external force.

[0092] Here, it should be noted that the connection mode between the second seat body 135 and the bracket 15 is the same as that between the first seat body 125 and the bracket 15, and here, it will not be repeated.

[0093] By adopting the above connection mode, the first seat body 125 and the second seat body 135 in the interface assembly 1 are firmly fixed on the bracket 15, forming a stable and easy-to-assemble overall structure. This design not only improves the mechanical strength of the assembly, but also greatly simplifies the assembly process and reduces production costs. At the same time, since the bracket 15 is made of plastic material, it also has a certain buffering and shock absorption effect, which can further improve the reliability and service life of the entire assembly.

[0094] In one of the embodiments, as shown in Figures 1-4 The energy storage power supply further includes a housing (not shown in the figure), which forms a containing space for containing the battery module and the interface assembly 1, and the housing is provided with two holes communicating with the containing space. Among them, the first parallel connection seat 12 and the second parallel connection seat 13 are respectively protruded on the housing through the two holes, so as to be exposed, so as to be connected with the expansion battery pack and the generator respectively.

[0095] The energy storage power supply provided in the embodiment integrates the circuit board 11, the first parallel connection seat 12, the second parallel connection seat 13 and the electrical connection part 14 into an integrated structure, which significantly improves the overall performance and manufacturing efficiency of the energy storage product. The design of the integrated structure makes the energy storage power supply easily adapt to the needs of various energy storage products, without the need to design each product separately, thereby accelerating the standardization and platformization process. This not only simplifies the production process, but also improves the compatibility and scalability of the product.

[0096] By highly integrating the above components, the redundant and repetitive functional design is effectively reduced, making the overall structure of the energy storage power supply more compact and efficient. This design not only reduces the overall weight and volume, but also improves the reliability and stability of the product.

[0097] In one of the embodiments, an energy storage power supply is provided, including a battery module (not shown in the figure), an interface assembly 1 and a housing (not shown in the figure), which has the same or similar structure as the energy storage power supply provided in the foregoing embodiments Figures 1-4 As shown in the embodiment, the difference is that, as shown in Figures 5-6 The positive and negative terminal setting rules in the embodiment are different from the positive and negative terminal setting rules in the above-mentioned embodiments.

[0098] In the embodiment, the first parallel connection seat 12 and the second parallel connection seat 13 are arranged side by side along the first direction, and the first positive electrode end 121 and the second positive electrode end 131 are arranged adjacent to each other, facilitating the connection and transmission of positive voltage. The first negative electrode end 122 is arranged on the side of the first positive electrode end 121 away from the second positive electrode end 131, and the second negative electrode end 132 is arranged on the side of the second positive electrode end 131 away from the first positive electrode end 121. The above layout ensures the electrical isolation between positive and negative voltages, improving the electrical safety performance.

[0099] The first parallel connection seat 12 and the second parallel connection seat 13 are kept arranged side by side along the first direction, which helps to maintain the overall aesthetics and structural compactness of the energy storage power supply. Among them, Figures 1-4 The second parallel connection seat 13 in the embodiment shown can be rotated by 180°, i.e. the scheme in the embodiment, so that the first positive electrode end 121 and the second positive electrode end 131 are arranged adjacent to each other, thereby further meeting the specific interface arrangement requirements.

[0100] And the structure of the second metal connecting plate 142 in the embodiment, the structure of the first metal connecting plate 141 Figures 1-4 The structure of the second metal connecting plate 142 in the embodiment shown is similar to that of the first metal connecting plate 141, both of which are U-shaped, but due to the influence of the positive electrode end and the negative electrode end, the structure of the second metal connecting plate 142 is different from that of the first metal connecting plate 141, i.e. the lengths of the first intermediate part 1414 and the second intermediate part 1424 are different, and the length of the first intermediate part 1414 is smaller than that of the second intermediate part 1424.

[0101] It can be understood that the design concept of the first intermediate part 1414 and the second intermediate part 1424 moving away from each other is the same, and the only difference is that the U-shaped width is slightly different. Therefore, the functions that can be achieved by the second metal connecting plate 142 and the first metal connecting plate 141 will not be repeated.

[0102] The energy storage power supply provided in the embodiment not only provides greater flexibility to adapt to different energy storage product interface layouts, but also helps to improve user experience. For example, in some application scenarios, users may need to connect the energy storage power supply with a device that has a specific interface arrangement. By rotating the second parallel connection seat 13, users can easily match the interface of the energy storage power supply with the interface of the device, thereby simplifying the connection process.

[0103] In one embodiment, an energy storage power supply is provided, comprising a battery module (not shown in the figure), an interface assembly 1 and a housing (not shown in the figure), which has the same or similar structure as the foregoing energy storage power supply provided Figures 1-4 The difference between the embodiment shown is that, referring toFigures 7-8 As shown, the arrangement of the parallel machine connection seat in the embodiment is different from that shown in the first embodiment. Figures 1-4 As shown, the arrangement of the parallel machine connection seat in the embodiment is different from that shown in the first embodiment.

[0104] In the embodiment, the first parallel machine connection seat 12 and the second parallel machine connection seat 13 in the interface assembly 1 are arranged side by side along the second direction, and the first positive electrode end 121 and the second positive electrode end 131 are arranged on the same side, and the first negative electrode end 122 and the second negative electrode end 132 are arranged on the same side, which helps to simplify the connection process of the energy storage power supply and external equipment and reduce the possibility of connection errors.

[0105] The first metal connecting plate 141 and the second metal connecting plate 142 are arranged between the first parallel machine connection seat 12 and the second parallel machine connection seat 13, respectively, which not only helps to enhance the connection stability between the parallel machine connection seats, but also helps to improve the integration of the energy storage power supply. The first metal connecting plate 141 and the second metal connecting plate 142 have the same structure, for example, both are strip-shaped. That is, the first metal connecting plate 141 extends vertically along the second direction, one end of the first metal connecting plate 141 is connected to the first positive electrode end 121, and the other end of the first metal connecting plate 141 is connected to the second positive electrode end 131. The second metal connecting plate 142 extends vertically along the second direction, one end of the second metal connecting plate 142 is connected to the first negative electrode end 122, and the other end of the second metal connecting plate 142 is connected to the second negative electrode end 132.

[0106] This design not only helps to reduce the number of materials and reduce production costs, but also helps to reduce the mold cost of the metal connecting plate, further reducing costs. Since the first metal connecting plate 141 and the second metal connecting plate 142 have the same structure and size, batch production and unified management can be realized, thereby improving production efficiency and quality stability.

[0107] The energy storage power supply proposed in the embodiment effectively reduces the number of materials and reduces the mold cost of the metal connecting plate by designing the first metal connecting plate 141 and the second metal connecting plate 142 with the same structure and size, which helps to reduce production costs and improve economic benefits. The first parallel machine connection seat 12 and the second parallel machine connection seat 13 are arranged side by side along the second direction, and the metal connecting plate is located between the two, which improves the tightness between the parallel machine connection seats, thereby improving the integration of the energy storage power supply. And the first positive electrode end 121 and the second positive electrode end 131 are arranged on the same side, and the first negative electrode end 122 and the second negative electrode end 132 are arranged on the same side, which simplifies the connection process of the energy storage power supply and external equipment. Users can easily select the corresponding positive and negative electrodes for connection according to actual needs, reducing the possibility of connection errors.

[0108] In one of the embodiments, a power storage device is provided, which comprises a battery module (not shown in the figure), an interface assembly 1 and a housing (not shown in the figure), and the structure of the power storage device is the same as or similar to that provided in the foregoing embodiments, and the same parts can be referred to Figures 1-4 The difference between the embodiments shown in the figures is that, as shown in Figure 9 The difference between the embodiments shown in the figures is that, as shown in Figures 1-4 The difference between the embodiments shown in the figures is that, as shown in

[0109] In one of the embodiments, the first parallel connection seat 12 is formed with a first insertion hole 127 and a second insertion hole 128, and the second parallel connection seat 13 is formed with a third insertion hole 137 and a fourth insertion hole 138, and the design of the insertion holes provides convenience for the fixation of the metal connecting plates.

[0110] The first metal connecting plate 141 has a first bending section 1411 and a second bending section 1412, and the first bending section 1411 is connected with the first connecting section 1413, and the first bending section 1411 is bent along a direction perpendicular to the plane where the first connecting section 1413 is located, i.e., extends along the third direction. The first bending section 1411 is inserted into the first insertion hole 127 to form a firm connection through interference fit. This connection method not only simplifies the manufacturing process, but also helps to improve the stability and reliability of the connection. The second bending section 1412 is inserted into the third insertion hole 137 to form an interference fit, and the second bending section 1412 is connected with the second connecting section 1415, and the second bending section 1412 is bent along a direction perpendicular to the plane where the second connecting section 1415 is located, i.e., extends along the third direction, protruding from the plane where the second connecting section 1415 is located, so as to realize the insertion with the third insertion hole 137.

[0111] The first bending section 1411 is configured as the first positive electrode terminal 121, and the second bending section 1412 is configured as the second positive electrode terminal 131, thereby realizing the effective connection of the positive electrode terminals.

[0112] The second metal connecting plate 142 has a third bending section 1421 and a fourth bending section 1422, and the third bending section 1421 is connected with the third connecting section 1423, and the third bending section 1421 is bent along a direction perpendicular to the plane where the third connecting section 1423 is located, i.e., extends along the third direction. The third bending section 1421 is inserted into the second insertion hole 128 to form an interference fit. The fourth bending section 1422 is inserted into the fourth insertion hole 138 to form an interference fit, and the fourth bending section 1422 is connected with the fourth connecting section 1425, and the fourth bending section 1422 is bent along a direction perpendicular to the plane where the fourth connecting section 1425 is located, i.e., extends along the third direction. This connection method helps to reduce the riveting and other complex processes in the manufacturing process, thereby reducing the production cost.

[0113] The third bend segment 1421 is constructed as the first negative pole 122, and the fourth bend segment 1422 is constructed as the second negative pole 132, thereby achieving an effective connection of the negative poles.

[0114] and Figures 1-4 Compared to the integrated interface component 1 in the illustrated embodiment, the interface component 1 in this embodiment provides a robust connection by using an interference fit connection method, eliminating the need for riveting structures. This not only reduces the weight of the energy storage power supply but also simplifies the manufacturing process, lowers production costs, and improves production efficiency, while maintaining the stability and reliability of the connection.

[0115] It should be noted that the energy storage power supply provided by this utility model can be used in the field of energy storage equipment technology or other fields. Other fields refer to any field other than the field of energy storage equipment technology. The above is merely an example and does not limit the application areas of the energy storage power supply provided by this utility model.

[0116] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0117] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0118] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described above.

Claims

1. An energy storage power supply, characterized by, The battery module comprises: a battery module; and an interface assembly comprising a circuit board, a first parallel machine connection seat, a second parallel machine connection seat and an electrical connection part, the first parallel machine connection seat and the second parallel machine connection seat are connected with the circuit board, the circuit board is located on the side of the electrical connection part away from the first parallel machine connection seat and / or the second parallel machine connection seat, and the circuit board is connected with the battery module; wherein the first parallel machine connection seat and the second parallel machine connection seat are connected with the battery module through the electrical connection part, the first parallel machine connection seat is used for connecting an expansion battery pack, and the second parallel machine connection seat is used for connecting a generator; the electrical connection part comprises a first metal connecting plate and a second metal connecting plate, two ends of the first metal connecting plate are respectively connected with one end of the first parallel machine connection seat and one end of the second parallel machine connection seat, and two ends of the second metal connecting plate are respectively connected with the other end of the first parallel machine connection seat and the other end of the second parallel machine connection seat. The first parallel machine connection seat has a first positive electrode end and a first negative electrode end, the second parallel machine connection seat has a second positive electrode end and a second negative electrode end, the first positive electrode end and the second positive electrode end are respectively connected with the first metal connecting plate, and the first negative electrode end and the second negative electrode end are respectively connected with the second metal connecting plate.

2. The energy storage power supply of claim 1, wherein, The first parallel machine connection seat and the second parallel machine connection seat are arranged side by side along a first direction, the first positive electrode end and the second positive electrode end are arranged adjacent to each other, the first negative electrode end is arranged on the side of the first positive electrode end away from the second positive electrode end, the second negative electrode end is arranged on the side of the second positive electrode end away from the first positive electrode end, and the first direction is parallel to the horizontal direction when the energy storage power supply is placed.

3. The energy storage power supply of claim 2, wherein, The first parallel machine connection seat and the second parallel machine connection seat are arranged side by side along a first direction, the first positive electrode end and the second negative electrode end are arranged adjacent to each other, the first negative electrode end is arranged on the side of the first positive electrode end away from the second negative electrode end, the second positive electrode end is arranged on the side of the second negative electrode end away from the first positive electrode end, and the first direction is parallel to the horizontal direction when the energy storage power supply is placed.

4. The energy storage power supply of claim 2, wherein, The first metal connecting plate comprises a first connecting part, a first intermediate part and a second connecting part connected in sequence and coplanar, wherein the first connecting part is connected with the first positive electrode end, the second connecting part is connected with the second positive electrode end, two ends of the first intermediate part are respectively connected with the first connecting part and the second connecting part, the extension direction of the first connecting part is the same as that of the second connecting part, and the extension direction of the first intermediate part intersects with the first connecting part or the second connecting part; 5. An energy storage power supply as claimed in claim 3 or 4, wherein, ​ The second metal connecting plate comprises a third connecting part, a second intermediate part and a fourth connecting part connected in sequence and coplanar; the third connecting part is connected with the first negative terminal, the fourth connecting part is connected with the second negative terminal, the two ends of the second intermediate part are connected with the third connecting part and the fourth connecting part respectively, the extension direction of the third connecting part is the same as that of the fourth connecting part, and the extension direction of the second intermediate part intersects with that of the third connecting part or the fourth connecting part; The first intermediate part and the second intermediate part are arranged away from each other.

6. The energy storage power supply of claim 2, wherein, The first parallel machine connecting seat and the second parallel machine connecting seat are arranged side by side along a second direction, and the first positive terminal and the second positive terminal are arranged on the same side, the first negative terminal and the second negative terminal are arranged on the same side, the first metal connecting plate and the second metal connecting plate are arranged between the first parallel machine connecting seat and the second parallel machine connecting seat respectively, and the second direction is perpendicular to the horizontal direction when the energy storage power supply is placed.

7. The energy storage power supply of claim 6, wherein, The first metal connecting plate vertically extends along the second direction, one end of the first metal connecting plate is connected with the first positive terminal, and the other end of the first metal connecting plate is connected with the second positive terminal. The second metal connecting plate vertically extends along the second direction, one end of the second metal connecting plate is connected with the first negative terminal, and the other end of the second metal connecting plate is connected with the second negative terminal.

8. The energy storage power supply according to claim 2, wherein The first parallel machine connecting seat comprises at least one first connecting column and at least one second connecting column; the first connecting column has a first free end and a first connecting end, the first free end is arranged to be electrically connected with the capacity expansion battery pack, and the first connecting end is riveted with the first metal connecting plate; the second connecting column has a second free end and a second connecting end, the second free end is arranged to be electrically connected with the capacity expansion battery pack, and the second connecting end is riveted with the second metal connecting plate; wherein the first connecting column is configured as the first positive terminal, and the second connecting column is configured as the first negative terminal; The second parallel machine connecting seat comprises at least one third connecting column and at least one fourth connecting column; the third connecting column has a third free end and a third connecting end, the third free end is arranged to be connected with the generator, and the third connecting end is riveted with the first metal connecting plate; the fourth connecting column has a fourth free end and a fourth connecting end, the fourth free end is arranged to be connected with the generator, and the fourth connecting end is riveted with the second metal connecting plate; wherein the third connecting column is configured as the second positive terminal, and the fourth connecting column is configured as the second negative terminal.

9. The energy storage power supply of claim 5, wherein, The first parallel machine connecting seat is formed with a first plug-in hole and a second plug-in hole, and the second parallel machine connecting seat is formed with a third plug-in hole and a fourth plug-in hole. The first metal connecting plate has a first bending section and a second bending section, the first bending section is connected with the first connecting part, and the first bending section is bent along a direction perpendicular to a plane where the first connecting part is located, the first bending section is inserted into the first insertion hole to form an interference fit; the second bending section is connected with the second connecting part, and the second bending section is bent along a direction perpendicular to a plane where the second connecting part is located, the second bending section is inserted into the third insertion hole to form an interference fit; wherein the first bending section is configured as the first positive electrode end, and the second bending section is configured as the second positive electrode end; The second metal connecting plate has a third bending section and a fourth bending section, the third bending section is connected with the third connecting part, and the third bending section is bent along a direction perpendicular to a plane where the third connecting part is located, the third bending section is inserted into the second insertion hole to form an interference fit; the fourth bending section is connected with the fourth connecting part, and the fourth bending section is bent along a direction perpendicular to a plane where the fourth connecting part is located, the fourth bending section is inserted into the fourth insertion hole to form an interference fit; wherein the third bending section is configured as the first negative electrode end, and the fourth bending section is configured as the second negative electrode end.

10. The energy storage power supply of claim 8 or 9, wherein, The first parallel machine connecting seat is provided with a first signal connecting part, one end of the first signal connecting part is connected with the capacity expansion battery pack, and the other end of the first signal connecting part is inserted with the circuit substrate; The second parallel machine connecting seat is provided with a second signal connecting part, one end of the second signal connecting part is connected with the generator, and the other end of the second signal connecting part is inserted with the circuit substrate.

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