Balcony energy storage host, balcony energy storage power-up pack and balcony photovoltaic energy storage system

Abstract

The utility model provides a balcony energy storage host, a balcony energy storage power-up pack and a balcony photovoltaic energy storage system, and relates to the technical field of energy storage devices. The first connecting terminal is arranged at the bottom of the first box body, and the first connecting terminal is used for being connected with a second connecting terminal of the balcony energy storage power-up bag; the first connecting terminal comprises a groove, and the groove wall of the groove is provided with a guide structure; the second connecting terminal comprises a shell; the groove wall of the groove and the guide structure are matched with the outer wall of the shell; the groove can be arranged on the shell in a sleeving mode so that the first connecting terminal and the second connecting terminal can be matched with each other, and the first box body abuts against the balcony energy storage power-up bag. According to the technical scheme of the utility model, the guiding structure is arranged on the groove wall of the groove, so that a guiding effect can be achieved when the shell is inserted into the groove, the first connecting terminal and the second connecting terminal are easy to align, the installation difficulty can be reduced, and the situations of collision and the like can be avoided to a great extent.

Description

Technical Field

[0001] This utility model relates to the field of energy storage device technology, specifically to a balcony energy storage host, a balcony energy storage power supply package, and a balcony photovoltaic energy storage system. Background Technology

[0002] Currently, home energy storage system products typically include an energy storage unit. However, the energy storage capacity of the energy storage unit itself is limited. In order to increase the energy storage capacity of home energy storage system products, a battery pack needs to be added to the energy storage unit.

[0003] In related technologies, balcony photovoltaic energy storage systems include a connected energy storage host and an energy storage power supply pack. To save space, the energy storage host and the energy storage power supply pack are usually stacked vertically. This arrangement makes it difficult for users to align the connectors when assembling the connection terminals between the energy storage host and the energy storage power supply pack, and can easily lead to bumps and knocks. Utility Model Content

[0004] In order to solve or improve the technical problem that the connection terminals are not easy to align with the sockets and are prone to bumping during assembly in related technologies, one purpose of this utility model is to provide a balcony energy storage host.

[0005] Another objective of this invention is to provide a balcony energy storage and power supply package.

[0006] Another objective of this invention is to provide a balcony photovoltaic energy storage system.

[0007] To achieve the above objectives, the first aspect of this utility model provides a balcony energy storage main unit, comprising: a first housing; a first connecting terminal disposed at the bottom of the first housing, the first connecting terminal being used to connect to a second connecting terminal of a balcony energy storage power supply package; the first connecting terminal including a groove, the groove wall having a guide structure; the second connecting terminal including a housing; the groove wall and the guide structure being adapted to the outer wall of the housing; the groove being able to be fitted onto the housing so that the first connecting terminal and the second connecting terminal cooperate with each other, and the first housing abutting against the balcony energy storage power supply package.

[0008] In the technical solution defined by this utility model, by setting a guide structure on the groove wall, a guiding function can be provided during the insertion of the outer shell into the groove, making it easier to align the first and second connecting terminals, which helps reduce installation difficulty and largely avoids collisions. In addition, the guide structure can also act as heat dissipation fins to a certain extent. While the groove and the outer shell are easily aligned, some of the heat generated by power supply can be dissipated from the groove in a timely manner through the guide structure, which helps to improve the heat dissipation effect.

[0009] This utility model adopts a hidden connection terminal structure (the outer shell can be inserted into the groove), which has the following advantages: First, the connection terminal is not exposed, which helps to improve safety performance and reduce safety hazards; Second, after the connection is realized, the balcony energy storage host and the balcony energy storage power supply can directly abut against each other, or two adjacent balcony energy storage power supply can directly abut against each other. This design makes the overall structure more compact.

[0010] In some technical solutions, the groove wall and guide structure can optionally be fitted with the outer wall of the housing with a clearance.

[0011] In this technical solution, a certain gap is formed between the groove wall and the outer wall of the outer shell, and a certain gap is also formed between the guide structure and the outer wall of the outer shell. This fit (gap fit) allows for a certain amount of movement between the two during the insertion of the outer shell into the groove, resulting in better guiding effect and reducing the likelihood of jamming.

[0012] In some technical solutions, optionally, there is a gap between the groove wall and the guide structure and the outer wall of the housing, the gap being 0.5 mm to 0.7 mm in size.

[0013] In this technical solution, by limiting the size range of the gap, firstly, the gap size is avoided from being too large, which would affect the guiding effect. Despite the gap, the guiding structure and the groove wall can still form a limiting constraint on the outer wall of the shell, preventing the shell from swaying radially or rotating circumferentially in the groove. Secondly, the gap size is avoided from being too small, which would affect the smoothness of the shell being inserted into the groove. A sufficiently large gap provides ample guiding error tolerance space for the shell to be inserted into the groove, making it less likely to get stuck.

[0014] In some technical solutions, the first connecting terminal may optionally include a first connector, which is disposed in the groove and has a slot; the second connecting terminal may also include a second connector, which is disposed in the housing and has a pin; the pin is used to insert into the slot to realize the electrical connection between the first connecting terminal and the second connecting terminal.

[0015] In this technical solution, when the housing of the second connecting terminal is inserted into the groove of the first connecting terminal, the guide structure acts as a "coarse guide" to ensure that the housing is aligned with the groove before insertion, and the pin of the second connector approaches the slot of the first connector under the guidance of the guide structure. After the pin is accurately inserted into the slot, the interaction between the pin and the slot achieves a "precise positioning" function, so that the first connecting terminal and the second connecting terminal can achieve a stable electrical connection.

[0016] In some technical solutions, the guide structure may optionally consist of multiple guide plates.

[0017] In this technical solution, by setting a guide plate, on the one hand, when the outer shell of the second connecting terminal is inserted into the groove of the first connecting terminal, it can play a guiding role to ensure that the outer shell is aligned with the groove before insertion; on the other hand, it can play a role in heat dissipation to a certain extent, and some of the heat generated by power supply can be discharged from the groove in time through the guide structure, which is conducive to improving the heat dissipation effect.

[0018] In some technical solutions, optionally, the guide plate has an arc transition surface on the side facing the groove opening; and / or the distance the guide plate extends gradually increases from the side closer to the groove opening to the side farther away from the groove opening.

[0019] In this technical solution, by setting an arc transition surface, the shell of the second connecting terminal can be inserted into the groove of the first connecting terminal without precise alignment. Even if there is a certain deviation between the initial position of the shell and the groove, the arc transition surface can automatically adjust the shell to the correct insertion position by its guiding effect, realizing the function of "blind insertion", which helps to reduce the difficulty of installation and operation.

[0020] The guide plate adopts a gradually changing size (referring to the extension distance) structure to ensure that the guiding force of the guide plate on the outer wall of the outer shell gradually increases as the outer shell is inserted into the groove, which is beneficial to improving the guiding effect.

[0021] In some technical solutions, the guide plate is optionally formed by extending inward from the groove wall of the groove.

[0022] In this technical solution, the guide plate and the groove of the first connecting terminal are an integral structure. Compared with the post-processing method, it has better mechanical properties, higher connection strength, and is conducive to reducing the number of parts, improving assembly efficiency, and also improving heat dissipation.

[0023] In some technical solutions, a buffer layer may optionally be provided on the guide plate.

[0024] In this technical solution, by setting a buffer layer, it can deform when subjected to external pressure, thereby absorbing and dispersing the impact force, effectively improving the impact and wear of the guide plate by the outer shell, and helping to improve the service life of the guide plate.

[0025] The second aspect of this utility model provides a balcony energy storage and power supply package, comprising: a second housing; a first connecting terminal disposed at the bottom of the second housing, the first connecting terminal being used to connect to a second connecting terminal of another balcony energy storage and power supply package; a second connecting terminal disposed at the top of the second housing, the second connecting terminal being used to connect to a first connecting terminal of a balcony energy storage main unit, or to connect to a first connecting terminal of another balcony energy storage and power supply package; the first connecting terminal includes a groove, the groove wall of which is provided with a guide structure; the second connecting terminal includes a housing, the outer wall of which is adapted to the groove wall and the guide structure; the housing is used to be inserted into the groove so that the first connecting terminal and the second connecting terminal cooperate with each other, the balcony energy storage and power supply package abuts against the balcony energy storage main unit, or two adjacent balcony energy storage and power supply packages abut against each other.

[0026] In the technical solution defined by this utility model, by setting a guide structure on the groove wall, a guiding function can be provided during the insertion of the outer shell into the groove, making it easier to align the first and second connecting terminals, which helps reduce installation difficulty and largely avoids collisions. In addition, the guide structure can also act as heat dissipation fins to a certain extent. While the groove and the outer shell are easily aligned, some of the heat generated by power supply can be dissipated from the groove in a timely manner through the guide structure, which helps to improve the heat dissipation effect.

[0027] The third aspect of this utility model provides a balcony photovoltaic energy storage system, including: a balcony energy storage host in any of the above technical solutions; or, a balcony energy storage host in any of the above technical solutions and at least one balcony energy storage power supply package in the above technical solutions.

[0028] Since the balcony photovoltaic energy storage system includes any of the balcony energy storage main units in the first aspect or the balcony energy storage power supply package in the second aspect, it has the beneficial effects of any of the above technical solutions, which will not be elaborated here.

[0029] Additional aspects and advantages of the present invention will become apparent in the following description or may be learned by practice of the present invention. Attached Figure Description

[0030] Figure 1 A schematic diagram of a balcony energy storage unit according to an embodiment of the present invention is shown;

[0031] Figure 2 A schematic diagram of the connection structure of the first connecting terminal and the second connecting terminal according to an embodiment of the present invention is shown;

[0032] Figure 3 A schematic diagram of the connection structure of the first connecting terminal and the second connecting terminal according to another embodiment of the present invention is shown;

[0033] Figure 4 A schematic diagram of a balcony energy storage and power supply package according to an embodiment of the present invention is shown;

[0034] Figure 5 A schematic diagram of a balcony energy storage and power supply package according to another embodiment of the present invention is shown;

[0035] Figure 6 A schematic diagram of a balcony photovoltaic energy storage system according to an embodiment of the present invention is shown;

[0036] Figure 7 A cross-sectional view of a balcony photovoltaic energy storage system according to an embodiment of the present invention is shown.

[0037] in, Figures 1 to 7 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0038] 100: Balcony energy storage main unit; 110: First connecting terminal; 111: Groove; 1111: Slot; 112: First connector; 1121: Slot; 130: Guide structure; 131: Guide plate; 1311: First guide plate; 1312: Second guide plate; 1313: Third guide plate; 132: Arc transition surface; 133: Buffer layer; 140: First housing; 200: Balcony energy storage power supply pack; 220: Second connecting terminal; 221: Housing; 222: Second connector; 2221: Pin; 240: Second housing; 300: Balcony photovoltaic energy storage system; G: Gap; H1: Distance by which the first guide plate extends away from the groove wall; H2: Distance by which the second guide plate extends away from the groove wall; H3: Distance by which the third guide plate extends away from the groove wall. Detailed Implementation

[0039] To better understand the above-mentioned objectives, features, and advantages of the embodiments of this utility model, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features thereof can be combined with each other.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, embodiments of the present invention may be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0041] The following reference Figures 1 to 7 This invention describes a balcony energy storage host, a balcony energy storage power supply package, and a balcony photovoltaic energy storage system according to some embodiments of the present invention.

[0042] In one embodiment according to the present invention, such as Figure 1 As shown, the balcony energy storage unit 100 includes a first housing 140 and a first connection terminal 110. The first connection terminal 110 is located at the bottom of the first housing 140 and is used to connect to the second connection terminal 220 of the balcony energy storage power supply unit 200.

[0043] It should be noted that the first connection terminal 110 of the balcony energy storage host 100 is connected to the second connection terminal 220 of the balcony energy storage power supply 200 to realize power transmission and signal interaction between the balcony energy storage host 100 and the balcony energy storage power supply 200.

[0044] Optionally, the balcony energy storage unit 100 also includes a battery module, a BMS (Battery Management System) module, an EMS (Energy Management System) module, and an inverter. The battery module, BMS module, EMS module, and inverter are all housed within the first enclosure 140.

[0045] The battery module, as the core energy storage unit of the balcony energy storage host 100, is installed inside the first enclosure 140. The battery module and the BMS module are electrically connected via electrical connection cables.

[0046] The BMS module is used to monitor various parameters of the battery module in real time, including voltage, current, and temperature. The BMS module can manage charging and discharging, control equalization, and diagnose faults in the battery module, ensuring its safe and efficient operation.

[0047] The BMS module and EMS module establish a connection through a communication line. The BMS module is also used to upload the status information of the battery module to the EMS module.

[0048] The EMS module, serving as the energy dispatch center for the entire energy storage system, is located within the first enclosure 140. The EMS module receives status information from the battery modules transmitted by the BMS module. It also communicates with external power grids, photovoltaic power generation equipment, and other energy sources, coordinating and controlling the operational status of battery modules, inverters, and other devices based on preset strategies or real-time energy demands.

[0049] The inverter is located within the first enclosure 140. The inverter is electrically connected to the battery module and also to the EMS module. The inverter converts the DC power output from the battery module into AC power that meets the needs of the electrical equipment, supplying power to the household load. Simultaneously, the inverter receives commands from the EMS module, adjusting its output power and operating mode to achieve rational energy distribution and efficient utilization.

[0050] The first connection terminal 110 is connected to the battery module and the inverter via an electrical connection wire.

[0051] like Figure 2 As shown, the first connecting terminal 110 includes a groove 111, and the groove wall of the groove 111 is provided with a guide structure 130. The second connecting terminal 220 includes a housing 221. The groove wall of the groove 111 and the guide structure 130 are adapted to the outer wall of the housing 221. The groove 111 can be fitted onto the housing 221 so that the first connecting terminal 110 and the second connecting terminal 220 cooperate with each other, and the first housing 140 abuts against the balcony energy storage and charging package 200.

[0052] Optionally, the contours of the groove wall of the groove 111 and the contours of the guide structure 130 are adapted to the contours of the outer wall of the housing 221.

[0053] During the process of connecting the first connection terminal 110 of the balcony energy storage host 100 with the second connection terminal 220 of the balcony energy storage power supply package 200, the groove 111 can smoothly fit onto the outside of the outer shell 221 along the direction indicated by the guide structure 130.

[0054] In one specific embodiment, the groove 111 has a quadrilateral cross-sectional shape. The quadrilateral groove 111 includes four groove walls and four first arc surfaces. Two adjacent groove walls are connected by a first arc surface. In other words, the corners of the groove 111 are provided with first arc surfaces.

[0055] The outer casing 221 has a quadrilateral cross-sectional shape. The quadrilateral groove 111 includes four outer walls and four second arc surfaces. Two adjacent outer walls are connected by a second arc surface. In other words, the outer casing 221 has a second arc surface at its corner.

[0056] By rounding the corners of the groove 111 and the outer shell 221, collisions between the edges can be effectively avoided, which can play a guiding role to a certain extent and facilitate the quick alignment of the groove 111 and the outer shell 221.

[0057] In one specific embodiment, when the cross-sectional shape of the groove 111 is quadrilateral, a guide structure 130 is provided on at least one side wall of the groove 111.

[0058] It should be noted that the guide structure 130 may be provided only on one side of the groove wall of the groove 111; or, the guide structure 130 may be provided on both sides of the groove 111; or, the guide structure 130 may be provided on three sides of the groove 111; or, the guide structure 130 may be provided on each side of the groove 111. Considering the guiding effect and other factors, the position of the guide structure 130 may be flexibly set according to actual needs.

[0059] In the technical solution defined by this utility model, by providing a guide structure 130 on the groove wall of the groove 111, a guiding function is provided during the insertion of the outer shell 221 into the groove 111. This facilitates the alignment of the first connecting terminal 110 and the second connecting terminal 220, reducing installation difficulty and largely preventing collisions. Furthermore, the guide structure 130 can also function as a heat dissipation fin to some extent. While the groove 111 and the outer shell 221 are easily aligned, some of the heat generated by power supply can be dissipated from the groove 111 through the guide structure 130 in a timely manner, thus improving heat dissipation.

[0060] This utility model adopts a hidden connection terminal structure (the outer shell 221 can be inserted into the groove 111), which has the following advantages: First, the connection terminal is not exposed, which helps to improve safety performance and reduce safety hazards; Second, after the connection is realized, the balcony energy storage host 100 and the balcony energy storage power supply 200 can directly abut against each other, or two adjacent balcony energy storage power supply 200s can directly abut against each other. This design makes the overall structure more compact.

[0061] In some embodiments, the groove wall of the groove 111 and the guide structure 130 are optionally clearance-fitted with the outer wall of the housing 221.

[0062] Clearance fit refers to a fit between two mating parts (an enclosing part and an enclosed part) where, after assembly, the actual size of the enclosing part is always larger than the actual size of the enclosed part, thus creating a certain clearance G between them (i.e., the size of the enclosing part minus the size of the enclosed part is a positive value). This fit allows the two parts to move relative to each other or have a certain amount of room to move after assembly. The size of the clearance G is controlled through tolerance design to meet specific functional requirements. In this invention, this specific functional requirement is the guiding requirement.

[0063] Taking a hole and a shaft as an example (explaining "clearance fit" when the enclosing part is a hole and the enclosed part is a shaft): the actual size of the hole is larger than the actual size of the shaft, thus forming a certain clearance G between the two.

[0064] In this invention, the groove 111 serves as an enclosing element, and the outer shell 221 serves as the enclosed element. The clearance fit between the groove wall of the groove 111 and the outer wall of the guide structure 130 and the outer wall of the outer shell 221 means that a certain gap G is formed between the groove wall of the groove 111 and the outer wall of the outer shell 221, and a certain gap G is also formed between the guide structure 130 and the outer wall of the outer shell 221. This fit (clearance fit) allows for a certain amount of movement between the outer shell 221 and the groove 111 during insertion, resulting in better guidance and reducing the likelihood of jamming.

[0065] The clearance fit design significantly reduces the alignment difficulty between the first connecting terminal 110 and the second connecting terminal 220. Users can quickly insert the housing 221 into the groove 111 via the guide structure 130 without precise alignment, which greatly improves assembly efficiency. Even when operating in low light or confined spaces, blind insertion can be achieved through the "error tolerance space" reserved by the clearance G, which helps improve the user's operating experience.

[0066] In addition, this design method, compared to the interference fit method, is beneficial to reduce wear and can also adapt to different machining precisions, thus improving compatibility.

[0067] It should be noted that, despite the existence of gap G (a certain gap G is formed between the groove wall of the groove 111 and the outer wall of the outer shell 221, and a certain gap G is formed between the guide structure 130 and the outer wall of the outer shell 221), the guide structure 130 and the groove wall of the groove 111 can still form a limiting constraint on the outer wall of the outer shell 221, preventing the outer shell 221 from radially shaking or circumferentially rotating within the groove 111.

[0068] In some embodiments, optionally, such as Figure 3 As shown, there is a gap G between the groove wall of the groove 111 and the guide structure 130 and the outer wall of the housing 221, and the size of the gap G is 0.5 mm to 0.7 mm.

[0069] There is a gap G between the groove wall of the groove 111 and the outer wall of the housing 221, and there is also a gap G between the guide structure 130 and the outer wall of the housing 221. The size of the gap G is 0.5 mm to 0.7 mm.

[0070] By limiting the size range of the gap G, firstly, it avoids the gap G being too large, thus affecting the guiding effect. Despite the existence of the gap G, the guide structure 130 and the groove wall of the groove 111 can still form a limiting constraint on the outer wall of the outer shell 221, preventing the outer shell 221 from radially shaking or circumferentially rotating within the groove 111. Secondly, it avoids the gap G being too small, thus affecting the smoothness of the outer shell 221 inserting into the groove 111. A sufficiently large gap G provides ample guiding error tolerance space for the outer shell 221 to insert into the groove 111, making it less likely to get stuck.

[0071] It is important to emphasize that the 0.5mm to 0.7mm gap G significantly reduces the difficulty of aligning the first connecting terminal 110 and the second connecting terminal 220. Users can quickly insert the housing 221 into the groove 111 via the guide structure 130 without precise alignment, which greatly improves assembly efficiency. Even when operating in low light or confined spaces, blind insertion can be achieved through the "error tolerance space" reserved by the gap G, which helps improve the user experience.

[0072] In one specific embodiment, the size of the gap G is 0.5 mm.

[0073] In one specific embodiment, the size of the gap G is 0.55 mm.

[0074] In one specific embodiment, the size of the gap G is 0.65 mm.

[0075] In one specific embodiment, the size of the gap G is 0.7 mm.

[0076] It should be noted that "mm" stands for millimeter.

[0077] In some embodiments, the groove depth of the groove 111 (the dimension from the opening 1111 of the groove 111 to the bottom of the groove) is optionally 4 cm to 5 cm.

[0078] By limiting the size range of the groove depth, firstly, the groove depth is avoided from being too large, which effectively improves assembly efficiency and reduces the possibility of collisions during the assembly of the first connecting terminal 110 and the second connecting terminal 220; secondly, the groove depth is avoided from being too small, which ensures the connection strength between the first connecting terminal 110 and the second connecting terminal 220.

[0079] In one specific embodiment, the groove depth of the groove 111 is 4 cm.

[0080] In one specific embodiment, the groove depth of the groove 111 is 4.2 cm.

[0081] In one specific embodiment, the groove depth of the groove 111 is 4.8 cm.

[0082] In one specific embodiment, the groove depth of the groove 111 is 5 cm.

[0083] It should be noted that "cm" stands for centimeter.

[0084] In some embodiments, optionally, such as Figure 1 and Figure 2 As shown, the first connecting terminal 110 further includes a first connector 112, which is disposed within the groove 111 and has a slot 1121; Figure 4 As shown, the second connection terminal 220 also includes a second connector 222, which is disposed inside the housing 221. The second connector 222 has a pin 2221. The pin 2221 is used to insert into the slot 1121 to realize the electrical connection between the first connection terminal 110 and the second connection terminal 220.

[0085] The first connector 112 is integrated inside the groove 111 of the first connector terminal 110, located on the bottom or side wall of the groove 111. It is made of a high-strength conductive material (such as copper alloy) and has an anti-oxidation layer plated on its surface to reduce contact resistance. The first connector 112 has a slot 1121, the shape of which is adapted to the pin 2221 of the second connector terminal 220. The depth of the slot 1121 matches the length of the pin 2221, ensuring a tight surface contact after the pin 2221 is inserted.

[0086] Optionally, the inner wall of the slot 1121 is provided with elastic contact pieces. These contact pieces are made of elastic conductive material and their shape is adapted to the pin 2221 of the second connection terminal 220.

[0087] Optionally, pin 2221 is a pin (a conductive metal needle-like structure with a specific geometry), which typically refers to a long, thin conductive component used to transmit current or signals.

[0088] When the housing 221 of the second connecting terminal 220 is inserted into the groove 111 of the first connecting terminal 110, the guide structure 130 acts as a "coarse guide" to ensure that the housing 221 is aligned with the groove 111 before insertion. Under the guidance of the guide structure 130, the pin 2221 of the second connecting head 222 approaches the slot 1121 of the first connecting head 112. During the insertion of the pin 2221 into the slot 1121, the slot 1121 and the guide structure 130 act as guides. After the pin 2221 is precisely inserted into the slot 1121, the interaction between the pin 2221 and the slot 1121 achieves a "precise positioning" function, ensuring a stable electrical connection between the first connecting terminal 110 and the second connecting terminal 220.

[0089] In one specific embodiment, both the slot 1121 and the pin 2221 are cylindrical.

[0090] In one specific embodiment, the number of pins 2221 is two or more, and the number of slots 1121 is two or more.

[0091] In some embodiments, optionally, such as Figure 1 , Figure 2 and Figure 3 As shown, the guide structure 130 consists of multiple guide plates 131.

[0092] By setting the guide plate 131, on the one hand, when the outer shell 221 of the second connecting terminal 220 is inserted into the groove 111 of the first connecting terminal 110, it can play a guiding role to ensure that the outer shell 221 is aligned with the groove 111 before insertion; on the other hand, it can play a role in heat dissipation to a certain extent, and some of the heat generated by power supply can be discharged from the groove 111 in a timely manner through the guide structure 130, which is conducive to improving the heat dissipation effect.

[0093] Optionally, the guide plate 131 is a heat dissipation fin, which can transfer heat and dissipate some of the heat from the groove 111.

[0094] In one specific embodiment, guide plates 131 are provided on the three side walls (groove walls) of the groove 111. The size of the guide plate 131 on each side wall can be different and can be adjusted according to actual needs.

[0095] Optionally, multiple guide plates 131 located on the same sidewall are distributed at equal intervals. This design helps to ensure both guiding and heat dissipation effects.

[0096] In some embodiments, optionally, such as Figure 1 As shown, the guide plate 131 has an arc transition surface 132 on the side facing the groove 1111 of the groove 111.

[0097] By setting the arc transition surface 132, precise alignment is not required when the outer shell 221 of the second connecting terminal 220 is inserted into the groove 111 of the first connecting terminal 110. Even if there is a certain deviation between the initial position of the outer shell 221 and the groove 111, the arc transition surface 132 can automatically adjust the outer shell 221 to the correct insertion position by its guiding effect, realizing the function of "blind insertion". This helps to reduce the difficulty of installation and operation. Even in environments with insufficient light or limited space, users can easily complete the connection (through "blind insertion"), which helps to improve the convenience of use and enhance the user's operating experience.

[0098] Through the coordinated action of the arc transition surface 132 and the guide plate 131, the housing 221 of the second connection terminal 220 can be accurately inserted into the groove 111, so that the pin 2221 and the slot 1121 can be precisely connected to achieve a stable electrical connection.

[0099] In some embodiments, the distance the guide plate 131 extends can be interpreted as the distance the guide plate 131 extends in a direction away from the groove wall of the groove 111.

[0100] For example, the guide plate 131 includes a first guide plate 1311, a second guide plate 1312, and a third guide plate 1313. The first guide plate 1311, the second guide plate 1312, and the third guide plate 1313 are respectively disposed on different groove walls of the groove 111 and extend therefrom.

[0101] Figure 3 In the middle, H1 represents the distance that the first guide plate 1311 extends away from the groove wall of the groove 111. Figure 3 H2 represents the distance that the second guide plate 1312 extends away from the groove wall of the groove 111. Figure 3 H3 represents the distance that the third guide plate 1313 extends away from the groove wall of the groove 111.

[0102] It should be noted that H1, H2, and H3 can be exactly the same, not exactly the same, or completely different, depending on the actual needs.

[0103] In one specific embodiment, the guide plates 131 located on different tank walls extend by different distances. The guide plates 131 located on the same tank wall extend by the same distance.

[0104] In some embodiments, optionally, the distance by which the guide plate 131 extends (as described above) gradually increases from the side closer to the slot 1111 to the side farther away from the slot 1111.

[0105] For example, the guide plate 131 extends a first distance on the side closer to the slot 1111. On the side farther from the slot 1111, the guide plate 131 extends a second distance. The second distance is greater than the first distance. The distance the guide plate 131 extends gradually changes from the first distance to the second distance.

[0106] The guide plate 131 adopts a gradually changing structure in terms of size (referring to the distance of extension). The trend of the extension distance of the guide plate 131 is either linearly increasing or smoothly transitioning by a curve, ensuring that the guiding force of the guide plate 131 on the outer wall of the outer shell 221 gradually increases as the outer shell 221 is inserted into the groove 111, which is beneficial to improving the guiding effect. As the outer shell 221 is gradually inserted into the groove 111, the guide plate 131 changes from "coarse guidance" to "fine guidance" (position calibration) and finally to "preliminary positioning" of the outer shell 221.

[0107] It should be noted that during the process of the outer shell 221 being gradually inserted into the groove 111, the outer shell 221 first contacts the arc transition surface 132. The arc transition surface 132 is responsible for "capturing" the outer shell 221 and initially aligning it, reducing the impact of collisions in the initial stage of insertion. Afterwards, the guide plate 131 with gradually changing size (referring to the extended distance) is responsible for "calibrating" the movement path of the outer shell 221 and finally positioning it, ensuring that the mechanical connection and electrical connection (the insertion of the pin 2221 into the slot 1121) are completed synchronously and accurately.

[0108] In some embodiments, the guide plate 131 is optionally formed by the groove wall of the groove 111 extending inward.

[0109] The guide plate 131 and the groove 111 of the first connecting terminal 110 are an integral structure. Compared with the post-processing method, it has better mechanical properties, higher connection strength, and is conducive to reducing the number of parts, improving assembly efficiency, and also improving heat dissipation.

[0110] It should be emphasized that, since the guide plate 131 and the groove 111 of the first connecting terminal 110 are an integral structure, there are no weak connection points between the guide plate 131 and the groove wall of the groove 111, which can largely avoid cracking and deformation of the guide plate 131. The integrated molding process helps to reduce the separate processing and assembly steps of the guide plate 131, and effectively avoids assembly errors between the guide plate 131 and the groove 111.

[0111] In some embodiments, optionally, such as Figure 1 As shown, a buffer layer 133 is provided on the guide plate 131.

[0112] Optionally, the buffer layer 133 is a rubber layer with a certain degree of flexibility and resilience.

[0113] By setting a buffer layer 133, it can deform when subjected to external pressure, thereby absorbing and dispersing the impact force, effectively improving the impact and wear of the guide plate 131 on the outer shell 221, and helping to improve the service life of the guide plate 131.

[0114] When the housing 221 contacts the guide plate 131, the buffer layer 133 undergoes elastic deformation, dispersing the impact force over a larger area. This prevents the guide plate 131 and housing 221 from being damaged by excessive instantaneous impact, such as scratches, wear, or deformation. This design helps extend the service life of the first connecting terminal 110 and the second connecting terminal 220, reducing equipment maintenance costs and replacement frequency.

[0115] Optionally, the thickness of the buffer layer 133 is 0.5mm to 1.5mm, and the thickness of the buffer layer 133 can be flexibly set according to actual needs.

[0116] In one embodiment according to the present invention, such as Figure 4 and Figure 5 As shown, the balcony energy storage and power supply package 200 includes a second housing 240, a first connecting terminal 110, and a second connecting terminal 220. The first connecting terminal 110 is located at the bottom of the second housing 240 and is used to connect to the second connecting terminal 220 of another balcony energy storage and power supply package 200. The second connecting terminal 220 is located at the top of the second housing 240 and is used to connect to the first connecting terminal 110 of the balcony energy storage main unit 100, or to the first connecting terminal 110 of another balcony energy storage and power supply package 200.

[0117] It should be noted that the first connection terminal 110 of the balcony energy storage host 100 is connected to the second connection terminal 220 of the balcony energy storage power supply 200 to realize power transmission and signal interaction between the balcony energy storage host 100 and the balcony energy storage power supply 200. In two adjacent balcony energy storage power supply 200s, the first connection terminal 110 of one balcony energy storage power supply 200 is connected to the second connection terminal 220 of the other balcony energy storage power supply 200 to realize power transmission and signal interaction between the two adjacent balcony energy storage power supply 200s.

[0118] Optionally, the balcony energy storage and charging pack 200 also includes a battery module and a BMS (Battery Management System) module. Both the battery module and the BMS module are located within the second enclosure 240.

[0119] The battery module, as the core energy storage unit of the balcony energy storage and power pack 200, is installed inside the second enclosure 240. The battery module and the BMS module are electrically connected via electrical connection cables.

[0120] The BMS module is used to monitor various parameters of the battery module in real time, including voltage, current, and temperature. The BMS module can manage charging and discharging, control equalization, and diagnose faults in the battery module, ensuring its safe and efficient operation.

[0121] Both the first connection terminal 110 and the second connection terminal 220 are connected to the battery module via electrical connection lines.

[0122] like Figure 2 , Figure 3 and Figure 5 As shown, the first connecting terminal 110 includes a groove 111, and the groove wall of the groove 111 is provided with a guide structure 130. For example... Figure 2 , Figure 3 and Figure 4As shown, the second connection terminal 220 includes a housing 221, the outer wall of which is adapted to the groove wall of the groove 111 and the guide structure 130. The housing 221 can be inserted into the groove 111 (i.e., the groove 111 can be fitted onto the housing 221) so that the first connection terminal 110 and the second connection terminal 220 cooperate with each other, and the balcony energy storage power supply 200 abuts against the balcony energy storage host 100, or two adjacent balcony energy storage power supply 200 abut against each other.

[0123] Optionally, the contours of the groove wall of the groove 111 and the contours of the guide structure 130 are adapted to the contours of the outer wall of the housing 221.

[0124] During the process of connecting the first connection terminal 110 of the balcony energy storage host 100 with the second connection terminal 220 of the balcony energy storage power supply package 200, the groove 111 can smoothly fit onto the outside of the outer shell 221 along the direction indicated by the guide structure 130.

[0125] In one specific embodiment, the groove 111 has a quadrilateral cross-sectional shape. The quadrilateral groove 111 includes four groove walls and four first arc surfaces. Two adjacent groove walls are connected by a first arc surface. In other words, the corners of the groove 111 are provided with first arc surfaces.

[0126] The outer casing 221 has a quadrilateral cross-sectional shape. The quadrilateral groove 111 includes four outer walls and four second arc surfaces. Two adjacent outer walls are connected by a second arc surface. In other words, the outer casing 221 has a second arc surface at its corner.

[0127] By rounding the corners of the groove 111 and the outer shell 221, collisions between the edges can be effectively avoided, which can play a guiding role to a certain extent and facilitate the quick alignment of the groove 111 and the outer shell 221.

[0128] In one specific embodiment, when the cross-sectional shape of the groove 111 is quadrilateral, a guide structure 130 is provided on at least one side wall of the groove 111.

[0129] It should be noted that the guide structure 130 may be provided only on one side of the groove wall of the groove 111; or, the guide structure 130 may be provided on both sides of the groove 111; or, the guide structure 130 may be provided on three sides of the groove 111; or, the guide structure 130 may be provided on each side of the groove 111. Considering the guiding effect and other factors, the position of the guide structure 130 may be flexibly set according to actual needs.

[0130] In the technical solution defined by this utility model, by providing a guide structure 130 on the groove wall of the groove 111, a guiding function is provided during the insertion of the outer shell 221 into the groove 111. This facilitates the alignment of the first connecting terminal 110 and the second connecting terminal 220, reducing installation difficulty and largely preventing collisions. Furthermore, the guide structure 130 can also function as a heat dissipation fin to some extent. While the groove 111 and the outer shell 221 are easily aligned, some of the heat generated by power supply can be dissipated from the groove 111 through the guide structure 130 in a timely manner, thus improving heat dissipation.

[0131] This utility model adopts a hidden connection terminal structure (the outer shell 221 can be inserted into the groove 111), which has the following advantages: First, the connection terminal is not exposed, which helps to improve safety performance and reduce safety hazards; Second, after the connection is realized, the balcony energy storage host 100 and the balcony energy storage power supply 200 can directly abut against each other, or two adjacent balcony energy storage power supply 200s can directly abut against each other. This design makes the overall structure more compact.

[0132] In some embodiments, the groove wall of the groove 111 and the guide structure 130 are optionally clearance-fitted with the outer wall of the housing 221.

[0133] Clearance fit refers to a fit between two mating parts (an enclosing part and an enclosed part) where, after assembly, the actual size of the enclosing part is always larger than the actual size of the enclosed part, thus creating a certain clearance G between them (i.e., the size of the enclosing part minus the size of the enclosed part is a positive value). This fit allows the two parts to move relative to each other or have a certain amount of room to move after assembly. The size of the clearance G is controlled through tolerance design to meet specific functional requirements. In this invention, this specific functional requirement is the guiding requirement.

[0134] In this invention, the groove 111 serves as an enclosing element, and the outer shell 221 serves as the enclosed element. The clearance fit between the groove wall of the groove 111 and the outer wall of the guide structure 130 and the outer wall of the outer shell 221 means that a certain gap G is formed between the groove wall of the groove 111 and the outer wall of the outer shell 221, and a certain gap G is also formed between the guide structure 130 and the outer wall of the outer shell 221. This fit (clearance fit) allows for a certain amount of movement between the outer shell 221 and the groove 111 during insertion, resulting in better guidance and reducing the likelihood of jamming.

[0135] The clearance fit design significantly reduces the alignment difficulty between the first connecting terminal 110 and the second connecting terminal 220. Users can quickly insert the housing 221 into the groove 111 via the guide structure 130 without precise alignment, which greatly improves assembly efficiency. Even when operating in low light or confined spaces, blind insertion can be achieved through the "error tolerance space" reserved by the clearance G, which helps improve the user's operating experience.

[0136] In addition, this design method, compared to the interference fit method, is beneficial to reduce wear and can also adapt to different machining precisions, thus improving compatibility.

[0137] In some embodiments, optionally, such as Figure 3 As shown, there is a gap G between the groove wall of the groove 111 and the guide structure 130 and the outer wall of the housing 221, and the size of the gap G is 0.5 mm to 0.7 mm.

[0138] There is a gap G between the groove wall of the groove 111 and the outer wall of the housing 221, and there is also a gap G between the guide structure 130 and the outer wall of the housing 221. The size of the gap G is 0.5 mm to 0.7 mm.

[0139] By limiting the size range of the gap G, firstly, it avoids the gap G being too large, thus affecting the guiding effect. Despite the existence of the gap G, the guide structure 130 and the groove wall of the groove 111 can still form a limiting constraint on the outer wall of the outer shell 221, preventing the outer shell 221 from radially shaking or circumferentially rotating within the groove 111. Secondly, it avoids the gap G being too small, thus affecting the smoothness of the outer shell 221 inserting into the groove 111. A sufficiently large gap G provides ample guiding error tolerance space for the outer shell 221 to insert into the groove 111, making it less likely to get stuck.

[0140] It is important to emphasize that the 0.5mm to 0.7mm gap G significantly reduces the difficulty of aligning the first connecting terminal 110 and the second connecting terminal 220. Users can quickly insert the housing 221 into the groove 111 via the guide structure 130 without precise alignment, which greatly improves assembly efficiency. Even when operating in low light or confined spaces, blind insertion can be achieved through the "error tolerance space" reserved by the gap G, which helps improve the user experience.

[0141] In some embodiments, optionally, such as Figure 2 and Figure 5 As shown, the first connecting terminal 110 further includes a first connector 112, which is disposed within the groove 111 and has a slot 1121; Figure 4As shown, the second connection terminal 220 also includes a second connector 222, which is disposed inside the housing 221. The second connector 222 has a pin 2221. The pin 2221 is used to insert into the slot 1121 to realize the electrical connection between the first connection terminal 110 and the second connection terminal 220.

[0142] The first connector 112 is integrated inside the groove 111 of the first connector terminal 110, located on the bottom or side wall of the groove 111. It is made of a high-strength conductive material (such as copper alloy) and has an anti-oxidation layer plated on its surface to reduce contact resistance. The first connector 112 has a slot 1121, the shape of which is adapted to the pin 2221 of the second connector terminal 220. The depth of the slot 1121 matches the length of the pin 2221, ensuring a tight surface contact after the pin 2221 is inserted.

[0143] When the housing 221 of the second connecting terminal 220 is inserted into the groove 111 of the first connecting terminal 110, the guide structure 130 acts as a "coarse guide" to ensure that the housing 221 is aligned with the groove 111 before insertion. Under the guidance of the guide structure 130, the pin 2221 of the second connecting head 222 approaches the slot 1121 of the first connecting head 112. During the insertion of the pin 2221 into the slot 1121, the slot 1121 and the guide structure 130 act as guides. After the pin 2221 is precisely inserted into the slot 1121, the interaction between the pin 2221 and the slot 1121 achieves a "precise positioning" function, ensuring a stable electrical connection between the first connecting terminal 110 and the second connecting terminal 220.

[0144] In some embodiments, optionally, such as Figure 5 As shown, the guide structure 130 consists of multiple guide plates 131.

[0145] By setting the guide plate 131, on the one hand, when the outer shell 221 of the second connecting terminal 220 is inserted into the groove 111 of the first connecting terminal 110, it can play a guiding role to ensure that the outer shell 221 is aligned with the groove 111 before insertion; on the other hand, it can play a role in heat dissipation to a certain extent, and some of the heat generated by power supply can be discharged from the groove 111 in a timely manner through the guide structure 130, which is conducive to improving the heat dissipation effect.

[0146] Optionally, the guide plate 131 is a heat dissipation fin, which can transfer heat and dissipate some of the heat from the groove 111.

[0147] In one specific embodiment, guide plates 131 are provided on the three side walls (groove walls) of the groove 111. The size of the guide plate 131 on each side wall can be different and can be adjusted according to actual needs.

[0148] Optionally, multiple guide plates 131 located on the same sidewall are distributed at equal intervals. This design helps to ensure both guiding and heat dissipation effects.

[0149] In some embodiments, the guide plate 131 may optionally have an arc transition surface 132 on the side facing the slot 1111 of the groove 111.

[0150] By setting the arc transition surface 132, precise alignment is not required when the outer shell 221 of the second connecting terminal 220 is inserted into the groove 111 of the first connecting terminal 110. Even if there is a certain deviation between the initial position of the outer shell 221 and the groove 111, the arc transition surface 132 can automatically adjust the outer shell 221 to the correct insertion position by its guiding effect, realizing the function of "blind insertion". This helps to reduce the difficulty of installation and operation. Even in environments with insufficient light or limited space, users can easily complete the connection (through "blind insertion"), which helps to improve the convenience of use and enhance the user's operating experience.

[0151] Through the coordinated action of the arc transition surface 132 and the guide plate 131, the housing 221 of the second connection terminal 220 can be accurately inserted into the groove 111, so that the pin 2221 and the slot 1121 can be precisely connected to achieve a stable electrical connection.

[0152] In some embodiments, the distance the guide plate 131 extends can be interpreted as the distance the guide plate 131 extends in a direction away from the groove wall of the groove 111.

[0153] For example, the guide plate 131 includes a first guide plate 1311, a second guide plate 1312, and a third guide plate 1313. The first guide plate 1311, the second guide plate 1312, and the third guide plate 1313 are respectively disposed on different groove walls of the groove 111 and extend therefrom.

[0154] Figure 3 H1 represents the distance that the first guide plate 1311 extends away from the groove wall of the groove 111. Figure 3 H2 represents the distance that the second guide plate 1312 extends away from the groove wall of the groove 111. Figure 3 H3 represents the distance that the third guide plate 1313 extends away from the groove wall of the groove 111.

[0155] It should be noted that H1, H2, and H3 can be exactly the same, not exactly the same, or completely different, depending on the actual needs.

[0156] In one specific embodiment, the guide plates 131 located on different tank walls extend by different distances. The guide plates 131 located on the same tank wall extend by the same distance.

[0157] In some embodiments, optionally, the distance by which the guide plate 131 extends (as described above) gradually increases from the side closer to the slot 1111 to the side farther away from the slot 1111.

[0158] For example, the guide plate 131 extends a first distance on the side closer to the slot 1111. On the side farther from the slot 1111, the guide plate 131 extends a second distance. The second distance is greater than the first distance. The distance the guide plate 131 extends gradually changes from the first distance to the second distance.

[0159] The guide plate 131 adopts a gradually changing structure in terms of size (referring to the distance of extension). The trend of the extension distance of the guide plate 131 is either linearly increasing or smoothly transitioning by a curve, ensuring that the guiding force of the guide plate 131 on the outer wall of the outer shell 221 gradually increases as the outer shell 221 is inserted into the groove 111, which is beneficial to improving the guiding effect. As the outer shell 221 is gradually inserted into the groove 111, the guide plate 131 changes from "coarse guidance" to "fine guidance" (position calibration) and finally to "preliminary positioning" of the outer shell 221.

[0160] It should be noted that during the process of the outer shell 221 being gradually inserted into the groove 111, the outer shell 221 first contacts the arc transition surface 132. The arc transition surface 132 is responsible for "capturing" the outer shell 221 and initially aligning it, reducing the impact of collisions in the initial stage of insertion. Afterwards, the guide plate 131 with gradually changing size (referring to the extended distance) is responsible for "calibrating" the movement path of the outer shell 221 and finally positioning it, ensuring that the mechanical connection and electrical connection (the insertion of the pin 2221 into the slot 1121) are completed synchronously and accurately.

[0161] In some embodiments, the guide plate 131 is optionally formed by the groove wall of the groove 111 extending inward.

[0162] The guide plate 131 and the groove 111 of the first connecting terminal 110 are an integral structure. Compared with the post-processing method, it has better mechanical properties, higher connection strength, and is conducive to reducing the number of parts, improving assembly efficiency, and also improving heat dissipation.

[0163] It should be emphasized that, since the guide plate 131 and the groove 111 of the first connecting terminal 110 are an integral structure, there are no weak connection points between the guide plate 131 and the groove wall of the groove 111, which can largely avoid cracking and deformation of the guide plate 131. The integrated molding process helps to reduce the separate processing and assembly steps of the guide plate 131, and effectively avoids assembly errors between the guide plate 131 and the groove 111.

[0164] In some embodiments, the guide plate 131 may optionally be provided with a buffer layer 133.

[0165] Optionally, the buffer layer 133 is a rubber layer with a certain degree of flexibility and resilience.

[0166] By setting a buffer layer 133, it can deform when subjected to external pressure, thereby absorbing and dispersing the impact force, effectively improving the impact and wear of the guide plate 131 on the outer shell 221, and helping to improve the service life of the guide plate 131.

[0167] When the housing 221 contacts the guide plate 131, the buffer layer 133 undergoes elastic deformation, dispersing the impact force over a larger area. This prevents the guide plate 131 and housing 221 from being damaged by excessive instantaneous impact, such as scratches, wear, or deformation. This design helps extend the service life of the first connecting terminal 110 and the second connecting terminal 220, reducing equipment maintenance costs and replacement frequency.

[0168] In one embodiment according to the present invention, such as Figure 6 and Figure 7 As shown, the balcony photovoltaic energy storage system 300 includes the balcony energy storage host 100 in any of the above embodiments. Alternatively, the balcony photovoltaic energy storage system 300 includes the balcony energy storage host 100 in any of the above embodiments and at least one balcony energy storage power supply pack 200 in any of the above embodiments.

[0169] The balcony photovoltaic energy storage system 300 has the beneficial effects of any of the above embodiments, which will not be repeated here.

[0170] It should be noted that the balcony photovoltaic energy storage system 300 may only include the balcony energy storage host 100, which supplies power to the household load to meet electricity demand.

[0171] If the balcony energy storage host 100 cannot meet the power demand, the balcony photovoltaic energy storage system 300 also includes a balcony energy storage power supply package 200. The first connection terminal 110 of the balcony energy storage host 100 is connected to the second connection terminal 220 of the balcony energy storage power supply package 200 to realize power transmission and signal interaction between the balcony energy storage host 100 and the balcony energy storage power supply package 200.

[0172] In the balcony energy storage unit 100, the first connection terminal 110 is located at the bottom of the first housing 140; in the balcony energy storage power supply unit 200, the second connection terminal 220 is located at the top of the second housing 240. Therefore, when stacking the balcony energy storage unit 100 and the balcony energy storage power supply unit 200, the balcony energy storage unit 100 needs to be placed on the balcony energy storage power supply unit 200 so that the first housing 140 and the second housing 240 abut against each other.

[0173] It should be noted that the number of balcony energy storage and power supply packs 200 is at least one, that is, there can be one, two or more balcony energy storage and power supply packs 200, and the number of balcony energy storage and power supply packs 200 can be flexibly set according to actual needs.

[0174] In the balcony energy storage power supply pack 200, the first connection terminal 110 is located at the bottom of the second housing 240, and the second connection terminal 220 is located at the top of the second housing 240. Therefore, when there are two or more balcony energy storage power supply packs 200, at least two balcony energy storage power supply packs 200 are also stacked vertically so that two adjacent second housings 240 abut against each other.

[0175] This utility model adopts a hidden connection terminal structure (the outer shell 221 can be inserted into the groove 111), which has the following advantages: First, the connection terminal is not exposed, which helps to improve safety performance and reduce safety hazards; Second, after the connection is realized, the balcony energy storage host 100 and the balcony energy storage power supply 200 can directly abut against each other, or two adjacent balcony energy storage power supply 200s can directly abut against each other. This design makes the overall structure more compact.

[0176] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0177] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0178] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0179] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A balcony energy storage unit, characterized in that, include: First box; The first connection terminal is located at the bottom of the first housing and is used to connect to the second connection terminal of the balcony energy storage power supply package. The first connecting terminal includes a groove, and the groove wall is provided with a guide structure; the second connecting terminal includes a housing; The groove wall and the guide structure are adapted to the outer wall of the housing; the groove can be fitted onto the housing so that the first connecting terminal and the second connecting terminal cooperate with each other, and the first box body abuts against the balcony energy storage and power supply package.

2. The balcony energy storage unit according to claim 1, characterized in that, The groove wall and the guide structure are fitted with the outer wall of the outer shell with a clearance.

3. The balcony energy storage unit according to claim 2, characterized in that, The groove wall and the guide structure have a gap with the outer wall of the housing, the gap being 0.5 mm to 0.7 mm in size.

4. The balcony energy storage unit according to any one of claims 1 to 3, characterized in that, The first connection terminal further includes a first connector, which is disposed in the groove and has a slot; The second connection terminal further includes a second connector, which is disposed inside the housing and has pins; The pin is used to insert into the slot to achieve an electrical connection between the first connection terminal and the second connection terminal.

5. The balcony energy storage unit according to any one of claims 1 to 3, characterized in that, The guiding structure consists of multiple guide plates.

6. The balcony energy storage unit according to claim 5, characterized in that, The guide plate has a rounded transition surface on the side facing the groove opening; and / or The distance the guide plate extends gradually increases from the side closer to the slot to the side farther away from the slot.

7. The balcony energy storage unit according to claim 5, characterized in that, The guide plate is formed by extending inward from the groove wall of the groove.

8. The balcony energy storage unit according to claim 5, characterized in that, The guide plate is provided with a buffer layer.

9. A balcony energy storage and power supply package, characterized in that, include: Second box; A first connection terminal is located at the bottom of the second housing, and the first connection terminal is used to connect to the second connection terminal of another balcony energy storage and power supply package; The second connection terminal is located on the top of the second housing. The second connection terminal is used to connect to the first connection terminal of the balcony energy storage host, or to connect to the first connection terminal of another balcony energy storage power supply package. The first connecting terminal includes a groove, and the groove wall is provided with a guide structure; The second connection terminal includes a housing, the outer wall of which is adapted to the groove wall of the groove and the guide structure; the housing is used to insert into the groove so that the first connection terminal and the second connection terminal cooperate with each other, the balcony energy storage power supply unit abuts against the balcony energy storage host, or two adjacent balcony energy storage power supply units abut against each other.

10. A balcony photovoltaic energy storage system, characterized in that, include: Balcony energy storage unit as described in any one of claims 1 to 8; or, The balcony energy storage host as described in any one of claims 1 to 8 and at least one balcony energy storage power supply pack as described in claim 9.

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