Energy storage facility

Abstract

To provide an energy storage facility that suppresses water from intruding therein.SOLUTION: An energy storage facility 100 includes a battery pack 10, a waterproof plug 20, and a water intrusion detection unit. The battery pack includes a housing 11 and a connection terminal 12. The housing has an opening 111, the connection terminal is located in the opening, and the waterproof plug includes an electrical connection component 21. The electrical connection component is arranged to electrically connect to the connection terminal upon the waterproof plug hermetically closing the opening and generate a first signal upon water intruding into the opening. The water intrusion detection unit is arranged to detect the first signal and determine that water has intruded into the opening. This detection of water intrusion at the opening effectively improves safety and reliability of the energy storage facility. The waterproof plug also has a small volume and a simple structure, which is advantageous for reducing production costs of the energy storage facility.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] This application relates to the field of energy storage, and more particularly to energy storage equipment. [Background technology]

[0002] Energy storage devices typically include multiple stacked battery packs. Each battery pack has a housing with an opening at the bottom, and a connecting terminal is provided in the opening. When assembled, each battery pack is connected to the battery pack below via the connecting terminal, and the lower battery pack simultaneously seals the opening of the upper battery pack. The presence of the opening makes it easy for water to seep into the battery packs, especially the bottom battery pack, which can damage the energy storage device or cause a safety hazard. Summary of the Invention [Problem to be solved by the invention]

[0003] An embodiment of the present application provides an energy storage facility.

[0004] The energy storage equipment according to the embodiment of the present application comprises: a battery pack, a waterproof plug, and a water intrusion detection unit, the battery pack including a housing and a connection terminal, an opening provided in the housing, the connection terminal provided in the opening; the waterproof plug includes an electrical connection component, the electrical connection component being electrically connected to the connection terminal when the waterproof plug seals the opening, and being arranged to generate a first signal when water enters the opening; The water intrusion detection unit is positioned to detect the first signal to determine water intrusion into the opening.

[0005] The energy storage device proposed in the implementation mode of this application is provided with a waterproof plug at the opening of the battery pack at the bottom, and the waterproof plug generates a first signal when water enters the opening. At the same time, a water intrusion detection unit detects the first signal to determine whether water is leaking into the opening, thereby realizing water intrusion detection at the opening and effectively improving the safety and reliability of the energy storage device. In addition, the waterproof plug has a small volume and a simple structure, which is advantageous for reducing the production costs of the energy storage device.

[0006] In some embodiments, the connection terminal includes a first probe base and a second probe base, the water intrusion detection unit is connected to the first probe base and the second probe base, the electrical connection part includes a first signal probe, a second signal probe, and a water intrusion detection line, the first signal probe is connected to the second signal probe via the water intrusion detection line, the water intrusion detection line is arranged to generate the first signal when water intrudes, when the waterproof plug seals the opening, the first signal probe is electrically connected to the first probe base and the second signal probe is electrically connected to the second probe base, and the water intrusion detection unit detects the first signal by detecting an electrical parameter of the water intrusion detection line via the first probe base and the second probe base.

[0007] In this way, the water intrusion detection unit can detect whether water is leaking into the opening of the battery pack through the change in the electrical parameters.

[0008] In some embodiments, the electrical parameter may be the voltage, current or resistance of the water intrusion detection line.

[0009] In this way, it is possible to select a parameter that is convenient for testing or more accurate according to the actual situation to detect the first signal.

[0010] In some embodiments, the water intrusion detection line includes a first detection line or a second detection line spaced apart, the first detection line being connected to the first signal probe and the second detection line being connected to the second signal probe.

[0011] Thus, the water intrusion detection line has a simple structure and low cost, which is advantageous for reducing the production costs of energy storage equipment.

[0012] In some embodiments, the first detection wire and the second detection wire are provided on a surface of the waterproof plug that faces away from the battery pack.

[0013] In this way, the water intrusion detection line is provided at a low position on the battery pack, and can generate the first signal earliest by coming into contact with water at the bottom of the battery pack earliest.

[0014] In some embodiments, the electrical connection component is arranged to connect with the connection terminal to generate a second signal when the waterproof plug seals the opening, and the energy storage device is and a short circuit detection unit, the short circuit detection unit being configured to detect the second signal to determine the communication address of the battery pack.

[0015] In this way, by providing a waterproof plug, the short circuit detection unit can determine the communication address of the battery pack.

[0016] In some embodiments, the first probe base is connected to a power supply terminal, the second probe base is connected to a ground terminal via a first resistor, the first signal probe is connected to the second signal probe via a diode, the energy storage facility further includes a control component, the control component includes a first opening and closing component, a second opening and closing component, and a control device, the first opening and closing component is provided between the water intrusion detection unit and the first probe base and the second probe base, the second opening and closing component is provided between the power supply terminal and the first probe base and the ground terminal and the second probe base, and the control device is The first and second probe bases are connected to the water intrusion detection unit via a first signal and a second signal, respectively, to control the first and second open / close components, so that the first and second probe bases are switched between a first state in which they are connected to the water intrusion detection unit and a second state in which they are connected to the power supply terminal and the ground terminal; when the first and second probe bases are in the second state, the short circuit detection unit detects the second signal to determine that the battery pack is located at the bottom; when the first and second probe bases are in the first state and the waterproof plug is positioned to seal the opening, the water intrusion detection unit is controlled to detect the first signal to determine that water has infiltrated into the opening.

[0017] In this way, the control component controls the working states of the short circuit detection unit and the water intrusion detection unit by switching the working states of the first probe base and the second probe base, so that the short circuit detection unit and the water intrusion detection unit can work alternately.

[0018] In some embodiments, the water ingress detection unit, the short circuit detection unit and the control component are all provided in the battery pack.

[0019] As such, waterproof plugs are consumable parts that are easily damaged or lost, and by reducing the number of elements in the waterproof plug as much as possible, the production costs of the waterproof plug can be reduced, which indirectly reduces the maintenance costs of the energy storage equipment.

[0020] In some embodiments, the waterproof plug includes a sealing bottom plate, the electrical connection parts are provided on the sealing bottom plate, the electrical connection parts enter the openings and mate with the connection terminals, and the sealing bottom plate seals the openings outside the housing.

[0021] Thus, the waterproof plug has a simple structure, is easy to process, and is advantageous in reducing production costs.

[0022] In some embodiments, the connection terminal includes a first guide portion, the waterproof plug includes a second guide portion, and the waterproof plug is arranged to ensure that the electrical connection part is accurately inserted into the connection terminal by engagement between the first guide portion and the second guide portion.

[0023] In this way, the first guide portion and the second guide portion fit together to guide, which is advantageous for accurately aligning the electrical connecting component with the connecting terminal.

[0024] In some embodiments, the connection terminal includes a terminal portion, the terminal portion is columnar, the first guide portion includes an outer column surface of the terminal portion, and the second guide portion includes a guide cover, which extends upward from the sealing bottom plate and engages with the outer column surface.

[0025] In this way, the degree of freedom in the fitting between the guide cover and the outer column surface is restricted in two directions at the same time, and the fitting accuracy between the electrical connecting parts and the connecting terminals can be improved.

[0026] In some embodiments, the battery pack includes a plurality of battery packs, the battery packs are stacked, each battery pack is connected to the battery pack below via the connection terminal, and the bottom battery pack is connected to the waterproof plug.

[0027] Additional aspects and advantages of the practice of the present application will be set forth in part in the description that follows, and in part will be obvious from the description, or may be learned by the practice of the present application.

[0028] The above and / or additional aspects and advantages of the present application will become apparent and readily understood from the following description of exemplary embodiments taken in conjunction with the drawings, in which: [Brief explanation of the drawings]

[0029] [Figure 1] 1 is a perspective schematic diagram of an energy storage facility according to an embodiment of the present application; [Figure 2] FIG. 2 is a schematic partial perspective view of another aspect of the energy storage facility of the embodiment of the present application. [Figure 3] 1 is a partially exploded perspective view of an energy storage facility according to an embodiment of the present application; [Figure 4] FIG. 2 is a perspective schematic view of a waterproof plug of an energy storage facility according to an embodiment of the present application. [Figure 5] FIG. 2 is a schematic plan view of a waterproof plug of an energy storage facility according to an embodiment of the present application. [Figure 6] 1 is a schematic plan view of a battery pack connection terminal of an energy storage device according to an embodiment of the present application; [Figure 7] 1 is a schematic diagram of an electrical circuit of a battery pack according to an embodiment of the present application; [Figure 8] 1 is a schematic diagram of an electrical circuit of a waterproof plug according to an embodiment of the present application; DETAILED DESCRIPTION OF THE INVENTION

[0030] The following describes in detail the embodiments of the present invention. Examples of the described embodiments are shown in the drawings, where the same or similar reference numerals throughout indicate the same or similar elements or elements with the same or similar functions. The embodiments described with reference to the following drawings are exemplary and are used only for the purpose of explaining the present invention and should not be understood as limiting the present invention. In the description of the present invention, the orientations or positional relationships indicated by terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" are orientations or positional relationships shown based on the drawings and are intended only to facilitate and simplify the description of the present invention. They do not indicate or imply that the indicated devices or elements have a specific orientation or should be configured and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In the description of the present invention, the term "plurality" means two or more than two, unless otherwise clearly and specifically limited.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "attached," "connected," and "connected" should be interpreted broadly, and may refer to, for example, a fixed connection, a detachable connection, or an integral connection; a mechanical connection, or an electrical connection; a direct connection, an indirect connection via an intermediate medium, an internal communication between two elements, or an interactive relationship between two elements. Those skilled in the art can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include direct contact between the first and second features, or may include contact between the first and second features via another feature between them, rather than direct contact. Furthermore, a first feature being "above," "above," or "on the upper surface" of a second feature may include being directly above or diagonally above the second feature, or may simply indicate that the first feature is at a higher horizontal height than the second feature. A first feature being "below," "below," or "on the lower surface" of a second feature may include being directly below or diagonally below the second feature, or may simply indicate that the first feature is at a lower horizontal height than the second feature.

[0033] The present disclosure provides different implementations or examples for realizing different structures of the present invention. To simplify the disclosure of the present invention, specific example components and installations are described herein. These are merely examples and are not intended to limit the present invention. Furthermore, the present invention may use repeated numerals and / or letters in different examples; such repetition is for simplicity and clarity and does not in itself dictate a relationship between the various implementations and / or installations discussed. Furthermore, while the present invention provides examples of various specific processes or materials, those skilled in the art may recognize the application of other processes and / or the use of other materials.

[0034] Energy storage devices typically include multiple stacked battery packs. Each battery pack has a housing with an opening at the bottom, and a connecting terminal is provided in the opening. When assembled, each battery pack is connected to the battery pack below via the connecting terminal, and the lower battery pack simultaneously seals the opening of the upper battery pack. The presence of the opening makes it easy for water to seep into the battery packs, especially the bottom battery pack, which can damage the energy storage device or cause a safety hazard.

[0035] In some embodiments, as shown in FIG. 1 , the energy storage device 100 provided in the present application may be a balcony photovoltaic energy storage device, which is relatively small, easy to carry or move, and can be moved to a different location depending on the user's power consumption needs, for example, from a balcony location to a garage or outdoors.

[0036] 1 to 3, an energy storage device 100 according to an embodiment of the present application includes a battery pack 10, a waterproof plug 20, and a water intrusion detection unit 30. The battery pack 10 includes a housing 11 and a connection terminal 12. The housing 11 is provided with an opening 111, and the connection terminal 12 is provided in the opening 111. The waterproof plug 20 includes an electrical connection part 21. The electrical connection part 21 is electrically connected to the connection terminal 12 when the waterproof plug 20 seals the opening 111, and is arranged to generate a first signal when water infiltrates the opening 111. The water intrusion detection unit 30 is arranged to detect the first signal and determine that water has infiltrated the opening 111.

[0037] The energy storage device 100 proposed in the implementation mode of this application is provided with a waterproof plug 20 at the opening 111 of the battery pack 10 at the bottom, and the waterproof plug 20 generates a first signal when water enters the opening 111. At the same time, a water intrusion detection unit 30 is used to detect the first signal to determine whether water is leaking into the opening 111, thereby realizing water intrusion detection at the opening 111 and effectively improving the safety and reliability of the energy storage device 100. In addition, the waterproof plug 20 has a small volume and a simple structure, which is advantageous for reducing the production costs of the energy storage device 100.

[0038] Specifically, the energy storage device 100 is a device that stores electrical energy or other forms of energy and releases it when needed to supply it to a power grid or other devices for use. In the embodiments of the present application, the energy storage device 100 refers to a household portable energy storage device 100, and the energy storage device 100 generally includes a functional module and a plurality of battery packs 10, and the plurality of battery packs 10 are stacked. Here, the plurality of battery packs may specifically include an integrated energy storage device and at least one power pack, and the integrated energy storage device mainly includes an inverter and a battery module, and the power pack mainly includes a battery module. As shown in FIG. 1 , the integrated energy storage device has at least one power pack stacked on top of each other, and their connection terminals are connected to achieve electrical conduction and signal conduction between the integrated device and the power pack, thereby enabling the battery capacity of the energy storage device 100 to be expanded.

[0039] The functional module is used to monitor, manage, and control parameters such as the battery state, current, and voltage of the battery pack 10. The functional module generally includes an inverter and power components, etc. Furthermore, by introducing advanced technologies such as artificial intelligence and big data, the operating strategy of the energy storage device 100 can be optimized to improve energy utilization efficiency and system stability.

[0040] The battery pack 10 is the core of the energy storage device 100 and is used to store and release electrical energy. To improve the storage capacity of electrical energy, the number of battery packs 10 is generally multiple, and each battery pack 10 generally includes components such as a battery management system (BMS).

[0041] The housing 11 of the battery pack 10 is typically a plastic housing 11 made by resin injection molding. It has handles 113 on both sides along the height of the housing 11 for carrying and transporting the battery pack 10. Support legs 114 are provided at the bottom of the housing 11 to support the housing 11. When the battery pack 10 is used alone, the support legs 114 can be used to support the battery pack 10 and provide a certain level of waterproofing. The top of the housing 11 also has receiving grooves 112 for receiving the support legs 114. When multiple battery packs 10 are stacked, the support legs 114 can be placed in the receiving grooves 112, increasing the contact area between the housings 11 of adjacent battery packs 10, dispersing pressure and making the stack more solid. Furthermore, because the opening 111 is typically located at the bottom, the tight fit of the housing 11 also allows the opening 111 to be sealed. With the housing 11 thus provided, the battery packs 10 can be connected together in a building block manner, which makes it convenient for users to reduce or expand the number of battery packs 10 based on their needs.

[0042] Since the opening 111 is generally provided at the bottom and the connection terminals 12 are generally provided at the bottom of the battery pack 10, a connection plug 15 is correspondingly provided at the top of the battery pack 10. When two battery packs 10 are stacked on top of each other, the connection plug 15 of the bottom battery pack 10 can be inserted into the opening 111 of the top battery pack 10 and electrically connected to the connection terminals 12, thereby realizing communication between the two battery packs 10.

[0043] In another embodiment, the connection terminal 12 may be provided on the top of the battery pack 10, and the connection plug 15 may be provided on the bottom of the battery pack 10. In this case, the waterproof plug 20 is connected to the connection plug 15 and is used to seal the connection plug 15.

[0044] The water intrusion detection unit 30 is a device used to monitor water intrusion, and can monitor changes in water level or water leakage conditions in real time. If an abnormality is detected, it will immediately sound an alarm, thereby preventing serious accidents or property losses.

[0045] 3 to 8, in some embodiments, the connection terminal 12 includes a first probe base 121 and a second probe base 122, the water intrusion detection unit 30 is connected to the first probe base 121 and the second probe base 122, the electrical connection part 21 includes a first signal probe 211, a second signal probe 212 and a water intrusion detection line 24, the first signal probe 211 is connected to the second signal probe 212 via the water intrusion detection line 24, The ingress detection line 24 is arranged to generate a first signal when water intrudes, and when the waterproof plug 20 seals the opening 111, the first signal probe 211 is electrically connected to the first probe base 121, and the second signal probe 212 is electrically connected to the second probe base 122, and the water intrusion detection unit 30 detects the electrical parameters of the water intrusion detection line 24 via the first probe base 121 and the second probe base 122 to detect the first signal.

[0046] In this way, the water intrusion detection unit 30 can detect whether water is leaking into the opening 111 of the battery pack 10 through the change in the electrical parameters.

[0047] In some embodiments, the electrical parameter may be the voltage, current, or resistance of the water intrusion detection line 24 .

[0048] Specifically, in this embodiment, the water intrusion detection method is such that when the water intrusion detection line 24 is not immersed in water, its resistance is generally high, almost to the point of disconnection, and this value is generally greater than 1000 kilohms. When water infiltrates the bottom of the housing, the water intrusion detection line is immersed in water, and the resistance decreases, and this value becomes less than 1000 kilohms, and is generally between several tens and two hundred kilohms.

[0049] Therefore, when water intrusion occurs, the resistance of the water intrusion detection line 24 between the first probe base 121 and the second probe base 122 becomes smaller than a set value, thereby transmitting a signal that there is water at the bottom of the battery pack 10 housing.

[0050] Referring to FIG. 8, in some embodiments, the water intrusion detection line 24 includes a first detection line 241 or a second detection line 242 spaced apart, the first detection line 241 being connected to the first signal probe 211 and the second detection line 242 being connected to the second signal probe 212.

[0051] As such, the water intrusion detection line 24 has a simple structure and low cost, which is advantageous in reducing the production cost of the energy storage equipment 100.

[0052] Specifically, the first detection line 241 and the second detection line 242 are spaced apart, which corresponds to a disconnection, and the resistance is almost infinite, generally understood to be greater than 1000 kilohms. When the water level is too high, both the first detection line 241 and the second detection line 242 will be submerged in water, and at this time, water will communicate between the first detection line 241 and the second detection line 242, and the resistance value will decrease.

[0053] The distance between the first sensing line 241 and the second sensing line 242 should not be too large to avoid the first sensing line 241 and the second sensing line 242 not being able to conduct.

[0054] Alternatively, the shape of the first detection line 241 may be E-shaped, S-shaped, M-shaped, H-shaped, etc., to make it easier for the first detection line 241 and the second detection line 242 to be conductive with water. Similarly, the shape of the second detection line 242 may be E-shaped, S-shaped, M-shaped, H-shaped, etc. In this embodiment, the first detection line 241 and the second detection line 242 are E-shaped and arranged opposite each other.

[0055] Referring to FIG. 5, in some embodiments, the first detection wire 241 and the second detection wire 242 are provided on the surface of the waterproof plug 20 that faces away from the battery pack 10 .

[0056] In this way, the water intrusion detection line 24 is provided at a low position on the battery pack 10, and can generate the first signal earliest by coming into contact with water at the bottom of the battery pack 10 earliest.

[0057] Specifically, since the waterproof plug 20 is located at the bottom of the battery pack 10, the surface of the waterproof plug 20 facing away from the battery pack 10 is the surface of the bottom of the battery pack 10 closest to the ground, and installing the water intrusion detection wire 24 there allows for quicker detection of rising water, thereby allowing the user to have a longer treatment time. This is advantageous for improving the reliability and service life of the energy storage equipment 100.

[0058] Referring to FIG. 7 , in some embodiments, the electrical connection part 21 is arranged to connect with the connection terminal 12 to generate a second signal when the waterproof plug 20 seals the opening 111, and the energy storage device 100

[0059] The short circuit detection unit 40 is arranged to detect the second signal to determine that the battery pack 10 is positioned at the bottom, which facilitates the battery pack to communicate with the address code.

[0060] In this way, by providing the waterproof plug 20, the short circuit detection unit 40 can determine whether the battery pack 10 is located at the bottom, which makes it convenient for the battery pack to communicate with the address code.

[0061] Specifically, the short circuit detection unit 40 is a device used to detect whether a short circuit (i.e., a short circuit) occurs in an electric circuit. It generally includes components such as a sensor, a signal processing circuit, and an alarm mechanism. The sensor is used to monitor the current, voltage, or other related parameters in the electric circuit in real time, and when an abnormal value is detected, the signal processing circuit can analyze and make a judgment.

[0062] A plurality of battery packs 10 can be stacked, and the stacked battery packs 10 can communicate with each other and be identified according to their different addresses. For example, the top battery pack 10 is the first battery pack, and the addresses increase by one from top to bottom, with the bottom battery pack being the last. The short-circuit detection unit 40 can recognize the second signal generated by connecting with the connection terminal 12 of the electrical connection part 21. If the bottom battery pack 10 is short-circuited, the battery pack 10 does not generate the second signal; it is not the bottom battery pack 10, and the number of battery packs 10 must be increased by one. When the battery pack 10 generates an identification signal, the short-circuit detection unit 40 recognizes the signal and determines that it is the last battery pack 10. At this time, the addresses do not increase by one, and the number of battery packs 10 is determined by the address of the last battery pack 10.

[0063] 7 and 8, in some embodiments, the first probe base 121 is connected to the power supply terminal 50, the second probe base 122 is connected to the ground terminal 60 via a first resistor 70, the first signal probe 211 is connected to the second signal probe 212 via a diode 25, and the energy storage facility 100 further includes a control component, which includes a first switching component 81, a second switching component 82, and a control device 80, the first switching component 81 being disposed between the water intrusion detection unit 30 and the first probe base 121 and the second probe base 122, and the second switching component 82 being disposed between the power supply terminal 50 and the first probe base 121 and the ground terminal 60 and the second probe base 122. The control device 80 is used to control the first opening / closing component 81 and the second opening / closing component 82 to switch the first probe base 121 and the second probe base 122 between a first state in which they are connected to the water intrusion detection unit 30 and a second state in which they are connected to the power supply terminal 50 and the ground terminal 60. When the first probe base 121 and the second probe base 122 are in the second state, the short circuit detection unit 40 detects a second signal to determine that the battery pack 10 is located at the bottom. When the first probe base 121 and the second probe base 122 are in the first state and the waterproof plug 20 seals the opening 111, the control device 80 is configured to control the water intrusion detection unit 30 to detect a first signal to determine that water has infiltrated into the opening 111.

[0064] In this way, the control component controls the working states of the short circuit detection unit 40 and the water intrusion detection unit 30 by switching the working states of the first probe base 121 and the second probe base 122, so that the short circuit detection unit 40 and the water intrusion detection unit 30 can work alternately.

[0065] Specifically, the second signal is a high level of the second probe base 122. In the short circuit detection method, when the waterproof plug 20 is not installed, the second probe base 122 is pulled down to the ground terminal 60 of the power supply by a resistor, and at this time, the second probe base 122 is at a low level, which means that the battery pack 10 does not have the waterproof plug 20 installed and is not at the bottom.

[0066] When the waterproof plug 20 is attached, the first probe base 121 is electrically connected to the first signal probe 211, the second probe base 122 is electrically connected to the second signal probe 212, and the power supply power terminal 50 is connected from the first signal probe 211 to the second signal probe 212 via the diode 25. At this time, the second probe base 122 is at a high level, which indicates that the waterproof plug 20 is attached to the battery pack 10 and that it is the bottommost battery pack 10.

[0067] Furthermore, when the energy storage facility 100 is used, short circuit detection and water intrusion detection are repeated according to a scheduled cycle, which is 1 second in this embodiment.

[0068] The first switching component 81 and the second switching component 82 are two interlocked switches, each of which functions as one circuit. The first switching component 81 includes a first switch and a second switch, which are interlocked, i.e., when the first switch is turned off, the second switch is synchronously turned off, and when the first switch is turned on, the second switch is synchronously turned on. Similarly, the second switching component 82 includes a third switch and a fourth switch, which are interlocked, i.e., when the third switch is turned off, the fourth switch is synchronously turned off, and when the third switch is turned on, the fourth switch is synchronously turned on. The first switch and the fourth switch are both electrically connected to the first probe base 121, and the second switch and the third switch are both electrically connected to the second probe base 122. The other ends of the first and second switches are electrically connected to the water intrusion detection unit 30, the other end of the third switch is connected to the ground terminal 60 via the first resistor 70, and the other end of the fourth switch is electrically connected to the power supply terminal 50.

[0069] In another embodiment, four uninterlocked switches may be provided.

[0070] In some embodiments, the water ingress detection unit 30, the short circuit detection unit 40 and the control components are all located in the battery pack 10.

[0071] As such, the waterproof plug 20 is a consumable part that is easily damaged or lost, and by reducing the number of elements in the waterproof plug 20 as much as possible, the production cost of the waterproof plug 20 can be reduced, which indirectly reduces the maintenance cost of the energy storage equipment 100.

[0072] Specifically, the battery pack 10 is provided with a microcontroller 80, which is a central processing unit whose frequency and specifications are appropriately reduced, and which integrates memory, counters, USB, A / D converters, peripheral interfaces such as UART, PLC, and DMA, and even LCD driving circuits into a single chip to form a chip-level computer that can perform different combinations of control for different applications. In this embodiment, the water intrusion detection unit 30, short circuit detection unit 40, and control components are all provided in the microcontroller 80.

[0073] 3 and 4, in some embodiments, the waterproof plug 20 includes a sealing bottom plate 22, the electrical connection part 21 is provided on the sealing bottom plate 22, the electrical connection part 21 enters the opening 111 and engages with the connection terminal 12, and the sealing bottom plate 22 seals the opening 111 outside the housing 11.

[0074] Thus, the waterproof plug 20 has a simple structure, is easy to process, and is advantageous in reducing production costs.

[0075] Specifically, in the embodiment of the present application, the sealing bottom plate 22 is a thin plate component, and the size of the sealing bottom plate 22 is larger than the size of the opening 111. Furthermore, when the waterproof plug 20 is attached to the housing 11, a sealing pattern can be formed on the surface of the sealing bottom plate 22 closest to the housing 11 in the area that will be bonded to the housing 11.

[0076] Furthermore, all corners of the sealing bottom plate 22 are provided with transition chamfers, which facilitates processing and prevents injuries to hands, improving the safety of producers and assemblers.

[0077] Furthermore, the seal bottom plate 22 has a track shape, and both ends of the seal bottom plate 22 in the longitudinal direction are curved in a direction away from the housing 11 to form curved portions 221. In this way, curved portions 221 are provided on both ends of the seal bottom plate 22, making it easy to attach and detach the waterproof plug 20.

[0078] Specifically, the camber 221 has a semicircular shape, and the edge where the diameter of the semicircle is located is connected to the bottom sealing plate 22. The included angle formed by the camber 221 and the housing 11 should not be too small; if the included angle is too small, it will be difficult to install and remove the waterproof plug 20. The included angle formed by the camber 221 and the housing 11 should also not be too large; if the included angle is too large, the camber 221 will extend outward a long distance, making it more susceptible to collisions. If the camber 221 is hit, it is likely to cause the waterproof plug 20 to fall off, destroying the waterproofing of the battery pack 10 and posing a safety hazard. At the same time, if the included angle is too large, the camber 221 will be more likely to break when hit, damaging the waterproof plug 20 and increasing the repair and maintenance costs of the battery pack 10. In the embodiment of the present application, the angle formed between the recurve 221 and the housing 11 is 15° to 45°, and preferably, the angle formed between the recurve 221 and the housing 11 is 30°.

[0079] Referring to Figures 3 and 5, in some embodiments, the connection terminal 12 includes a first guide portion 13, and the waterproof plug 20 includes a second guide portion 23, and the waterproof plug 20 is arranged to ensure that the electrical connection part 21 is accurately inserted into the connection terminal 12 by the engagement between the first guide portion 13 and the second guide portion 23.

[0080] In this way, the first guide portion 13 and the second guide portion 23 fit together and guide, which is advantageous for accurately aligning the electrical connecting part 21 with the connecting terminal 12 .

[0081] Specifically, the first guide portion 13 and the connection terminal 12 are integrally molded into an integral structure, and the second guide portion 23 and the waterproof plug 20 are also integrally molded into an integral structure.

[0082] In some embodiments, the connection terminal 12 includes a terminal portion 14, the terminal portion 14 is columnar, the first guide portion 13 includes an outer column surface 141 of the terminal portion 14, and the second guide portion 23 includes a guide cover 231, which extends upward from the sealing bottom plate 22 and engages with the outer column surface 141.

[0083] In this way, the degree of freedom in the fitting between the guide cover 231 and the outer column surface 141 is restricted in two directions at the same time, and the fitting accuracy between the electrical connecting parts 21 and the connecting terminals 12 can be improved.

[0084] Specifically, the terminal portion 14 is semi-cylindrical, the outer cylindrical surface 141 is an outer cylindrical surface, and the surface of the guide cover 231 that fits with the outer cylindrical surface 141 is an inner cylindrical surface. Furthermore, the number of terminal portions 14 is two, and the two guide covers 231 are provided at both ends of the first guide portion 13, respectively, and the number of guide covers 231 is two, and the two guide covers 231 are provided at both ends of the second guide portion 23, respectively.

[0085] Furthermore, the first guide portion 13 further includes a guide hole 131 formed on the end surface of the terminal portion 14, and the second guide portion 23 includes a guide pillar 232, which extends upward from the sealing bottom plate 22 and engages with the guide hole 131, and the height of the guide pillar 232 is greater than the height of the guide cover 231.

[0086] In this way, the fitting of the guide post 232 with the guide hole 131 is advantageous in further improving the fitting accuracy between the electrical connection part 21 and the connection terminal 12. Furthermore, since the height of the guide post 232 is greater than the height of the guide cover 231, the guide post 232 first fits into and guides the guide hole 131, making it easier to fit the subsequent guide structure.

[0087] Specifically, there are multiple guide columns 232, and the guide columns 232 are arranged in one-to-one correspondence with the guide holes 131. In the embodiment of the present application, the number of guide columns 232 is three, and the shapes and sizes of the three guide columns 232 are exactly the same, and the electrical connection part 21 is arranged between two guide columns 232.

[0088] Furthermore, a fillet is formed at the connection point between the outer column surface 141 and the end face of the terminal portion 14. In this way, the fillet serves to guide and correct the position, making it easier to fit and guide the guide cover 231 and the outer column surface 141 together.

[0089] Specifically, the fillet is formed as a quarter outer sphere, and the radius of the outer sphere and the radius of the outer cylindrical surface 141 are the same.

[0090] In some embodiments, the battery packs 10 are stacked one on top of the other, with each battery pack 10 connected to the battery pack 10 below via a connection terminal 12, and the bottom battery pack 10 being connected to a waterproof plug 20.

[0091] Specifically, the number of battery packs 10 can be determined based on actual needs, and a waterproof plug 20 is provided at the bottom opening 111 of the bottommost battery pack 10 .

[0092] In the description herein, reference to the reference terms "certain embodiments," "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in the described embodiment or example are included in at least one embodiment or example of the present application. In this description, the exemplary use of the term does 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 any one or more embodiments or examples.

[0093] Additionally, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to specify the number of technical features being indicated. Thus, a feature qualified as "first" or "second" may indicate or imply the inclusion of at least one of said feature. In the description of this application, "plurality" means at least two, e.g., two or three, unless otherwise clearly and specifically limited.

[0094] Although the above has already shown and explained examples of the present application, the above examples are merely illustrative and should not be construed as limitations on the present application. Those skilled in the art may make changes, modifications, substitutions and variations to the above examples within the scope of the present application, and the scope of the present application is limited by the claims and their equivalents. [Explanation of symbols]

[0095] 100 Energy Storage Facilities 10 Battery pack 11. Housing 111 Aperture 112 Storage groove 113 Pull Handle 114 Support legs 12 Connection terminal 121 First probe stand 122 Second probe stand 13 First guide part 131 Guide hole 14 Terminal section 141 External column surface 15 Connection plug 20 Waterproof plug 21 Electrical connection parts 211 First Signal Probe 212 Second Signal Probe 22 Seal bottom plate 221 Curvature 23 Second guide part 231 Guide cover 232 Guide Pillar 24 Water intrusion detection wire 241 First Detection Line 242 Second Detection Line 25 Diode 30 Water intrusion detection unit 40 Short circuit detection unit 50 Power supply terminal 60 Ground terminal 70 First Resistance 80 Control device 81 First Opening and Closing Component 82 Second Opening and Closing Component

Claims

1. An energy storage facility comprising: a battery pack, a waterproof plug, and a water intrusion detection unit, the battery pack including a housing and a connection terminal, an opening provided in the housing, the connection terminal provided in the opening; the waterproof plug includes an electrical connection component, the electrical connection component being electrically connected to the connection terminal when the waterproof plug seals the opening, and being arranged to generate a first signal when water enters the opening; 10. The energy storage facility, wherein the water intrusion detection unit is positioned to detect the first signal and determine that water has intruded into the opening.

2. 2. The energy storage facility of claim 1, wherein the connection terminal includes a first probe base and a second probe base, the water intrusion detection unit is connected to the first probe base and the second probe base, the electrical connection parts include a first signal probe, a second signal probe, and a water intrusion detection line, the first signal probe is connected to the second signal probe via the water intrusion detection line, and the water intrusion detection line is arranged to generate the first signal when water intrudes, and when the waterproof plug seals the opening, the first signal probe is electrically connected to the first probe base and the second signal probe is electrically connected to the second probe base, and the water intrusion detection unit detects the first signal by detecting an electrical parameter of the water intrusion detection line via the first probe base and the second probe base.

3. The energy storage facility according to claim 2 , wherein the electrical parameter may be a voltage, a current, or a resistance value of the water intrusion detection line.

4. 3. The energy storage facility according to claim 2, wherein the water intrusion detection line includes a first detection line and a second detection line spaced apart, the first detection line being connected to the first signal probe, and the second detection line being connected to the second signal probe.

5. The energy storage facility according to claim 4 , wherein the first detection wire and the second detection wire are provided on a surface of the waterproof plug that is away from the battery pack.

6. The electrical connection part is arranged to connect with the connection terminal to generate a second signal when the waterproof plug seals the opening, and the energy storage device is 3. The energy storage facility according to claim 2, further comprising a short circuit detection unit, the short circuit detection unit being positioned to detect the second signal to determine that the battery pack is located at the bottom.

7. The first probe base is connected to a power supply terminal, the second probe base is connected to a ground terminal via a first resistor, the first signal probe is connected to the second signal probe via a diode, the energy storage facility further includes a control component, the control component includes a first opening / closing component, a second opening / closing component and a control device, the first opening / closing component is provided between the water intrusion detection unit and the first probe base and the second probe base, the second opening / closing component is provided between the power supply terminal and the first probe base and the ground terminal and the second probe base, and the control device controls the first opening / closing component and the second opening / closing component.

7. The energy storage facility of claim 6, wherein the short circuit detection unit is used to control a switch between a first state in which the first probe base and the second probe base are connected to the water intrusion detection unit and a second state in which they are connected to the power supply terminal and the ground terminal; when the first probe base and the second probe base are in the second state, the short circuit detection unit detects the second signal to determine that the battery pack is located at the bottom; and when the first probe base and the second probe base are in the first state and the waterproof plug is positioned to seal the opening, the water intrusion detection unit is controlled to detect the first signal to determine that water has infiltrated into the opening.

8. The energy storage facility according to claim 7 , wherein the water intrusion detection unit, the short circuit detection unit and the control component are all provided in the battery pack.

9. 2. The energy storage facility according to claim 1, wherein the waterproof plug includes a sealing bottom plate, the electrical connection parts are provided on the sealing bottom plate, the electrical connection parts enter the openings and mate with the connection terminals, and the sealing bottom plate seals the openings outside the housing.

10. 10. The energy storage facility according to claim 9, wherein the connection terminal includes a first guide portion, the waterproof plug includes a second guide portion, and the waterproof plug is arranged to ensure that the electrical connection part is accurately inserted into the connection terminal by engagement between the first guide portion and the second guide portion.

11. 11. The energy storage facility according to claim 10, wherein the connection terminal includes a terminal portion, the terminal portion having a columnar shape, the first guide portion includes an outer column surface of the terminal portion, and the second guide portion includes a guide cover, the guide cover extending upward from the sealing bottom plate and engaging with the outer column surface.

12. 2. The energy storage facility according to claim 1, wherein the battery pack includes a plurality of battery packs, the battery packs are stacked, each battery pack is connected to the battery pack below it via the connection terminal, and the battery pack at the bottom is connected to the waterproof plug.

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