Energy storage facilities

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 technical field of energy storage, and more specifically, to energy storage equipment.

Background Art

[0002] Energy storage equipment generally includes a plurality of battery packs that are stacked and provided. An opening is formed at the bottom of the housing of each battery pack, and a connection terminal is provided at the opening. During assembly, each battery pack is connected to the lower battery pack through the connection terminal, and at the same time, the lower battery pack closes the opening of the upper battery pack. Due to the existence of the opening, water is likely to penetrate into the battery pack, especially the bottom battery pack, which is likely to damage the energy storage equipment or cause a safety accident.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The embodiments of this application provide energy storage equipment.

[0004] The energy storage equipment of the embodiments of this application includes a battery pack, a waterproof plug, and a water intrusion detection unit. The battery pack includes a housing and a connection terminal. An opening is provided in the housing, and the connection terminal is provided at the opening. The waterproof plug includes an electrical connection component. When the waterproof plug closes the opening, the electrical connection component is electrically connected to the connection terminal, and is arranged to form a first signal when water penetrates into the opening. The water intrusion detection unit is arranged to detect the first signal and determine that water has penetrated into the opening.

[0005] The energy storage equipment submitted in this application provides 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. Simultaneously, a water ingress detection unit is used to detect the first signal and determine whether water is leaking into the opening, thereby effectively improving the safety and reliability of the energy storage equipment by enabling water ingress detection at the opening. Furthermore, the waterproof plug is small in volume and has a simple structure, which is advantageous in reducing the production cost of the energy storage equipment.

[0006] In some embodiments, the connection terminal includes a first probe base and a second probe base, the water ingress detection unit is connected to the first probe base and the second probe base, the electrical connection component includes a first signal probe, a second signal probe and a water ingress detection wire, the first signal probe is connected to the second signal probe via the water ingress detection wire, the water ingress detection wire is arranged to form the first signal when water ingress occurs, 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 when the waterproof plug seals the opening, and the water ingress detection unit detects the first signal by detecting the electrical parameters of the water ingress detection wire via the first probe base and the second probe base.

[0007] In this way, the water ingress detection unit can detect whether water is leaking into the battery pack opening by detecting changes in electrical parameters.

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

[0009] In this way, depending on the actual situation, parameters that are convenient or more precise for testing can be selected to detect the first signal.

[0010] In some embodiments, the water ingress detection line includes a first detection line or a second detection line provided at intervals, 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, water ingress detection lines have a simple structure, low cost, and are advantageous in reducing the production costs of energy storage equipment.

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

[0013] Thus, the water ingress detection wire is positioned low on the battery pack, allowing it to make contact with water at the bottom of the battery pack as quickly as possible, thereby generating the first signal as soon as possible.

[0014] In some embodiments, the electrical connection component is arranged to connect to the connection terminal to form a second signal when the waterproof plug seals the opening, and the energy storage equipment is The system includes a short-circuit detection unit, which is configured to detect the second signal and 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 stand is connected to a power supply terminal, the second probe stand 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 device further includes a control component, the control component includes a first switching component, a second switching component and a control device, the first switching component is provided between the water ingress detection unit and the first and second probe stands, the second switching component is provided between the power supply terminal and the first probe stand and the ground terminal and the second probe stand, and the control device controls the first switching The components and the second opening / closing components are used to control the first probe stand and the second probe stand, which are switched between a first state in which they are connected to the water ingress detection unit and a second state in which they are connected to the power supply terminal and the ground terminal. When the first probe stand and the second probe stand are in the second state, the short-circuit detection unit detects the second signal to confirm that the battery pack is at the bottom. When the first probe stand and the second probe stand are in the first state and the waterproof plug is positioned to seal the opening, the water ingress detection unit is controlled to detect the first signal to confirm that water has entered the opening.

[0017] In this way, the control component controls the working state of the short-circuit detection unit and the water ingress detection unit by switching the working state of the first probe stand and the second probe stand, thereby allowing the short-circuit detection unit and the water ingress detection unit to operate 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] Thus, since waterproof plugs are consumable parts that are easily damaged or lost, reducing the number of elements in a waterproof plug as much as possible can lower the production cost of the waterproof plug, thereby indirectly lowering the maintenance costs of energy storage facilities.

[0020] In some embodiments, the waterproof plug includes a sealing bottom plate, the electrical connection components are provided on the sealing bottom plate, the electrical connection components fit into the opening and engage with the connection terminals, and the sealing bottom plate seals the opening outside the housing.

[0021] Thus, waterproof plugs have a simple structure, are easy to process, and are 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 positioned such that the fitting of the first guide portion and the second guide portion ensures that the electrical connection component is accurately inserted into the connection terminal.

[0023] Thus, the first guide portion and the second guide portion fit together to guide the electrical connection components, which is advantageous for accurately aligning them with the connection terminals.

[0024] In some embodiments, the connecting terminal includes a terminal portion, the terminal portion is columnar, the first guide portion includes the outer columnar surface of the terminal portion, and the second guide portion includes a guide cover, the guide cover extending upward from the seal bottom plate and fitting with the outer columnar surface.

[0025] In this way, the fitting between the guide cover and the outer column surface simultaneously restricts the degrees of freedom in two directions, thereby improving the fitting accuracy between the electrical connection components and the connection terminals.

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

[0027] Additional aspects and advantages of the embodiments of the present application will be shown in part in the following description, become apparent in part from the following description, or be understood by implementing the embodiments of the present application.

[0028] The above and / or additional aspects and advantages of the present application will become apparent and be easily understood from the description of the embodiments in combination with the following drawings, where

Brief Description of the Drawings

[0029] [Figure 1] It is a perspective schematic view of the energy storage equipment of the embodiment of the present application. [Figure 2] It is a partial perspective schematic view of another perspective of the energy storage equipment of the embodiment of the present application. [Figure 3] It is a partial perspective exploded view of the energy storage equipment of the embodiment of the present application. [Figure 4] It is a perspective schematic view of the waterproof plug of the energy storage equipment of the embodiment of the present application. [Figure 5] It is a plan schematic view of the waterproof plug of the energy storage equipment of the embodiment of the present application. [Figure 6] It is a plan schematic view of the battery pack connection terminal of the energy storage equipment of the embodiment of the present application. [Figure 7] It is a schematic electrical circuit diagram of the battery pack of the embodiment of the present application. [Figure 8] It is a schematic electrical circuit diagram of the waterproof plug of the embodiment of the present application.

Modes for Carrying Out the Invention

[0030] The following describes in detail embodiments of the present invention, with examples of the described embodiments shown in the drawings, where the same or similar reference numerals throughout indicate the same or similar elements, or elements having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and are used solely for the purpose of illustrating the present invention and should not be understood as limiting the invention. In the description of the present invention, the directions or positional relationships indicated by terms such as "center," "vertical," "horizontal," "length," "width," "thickness," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," and "counterclockwise" are directions or positional relationships shown based on the drawings and are merely intended to facilitate and simplify the explanation 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, "multiple" means two or more unless otherwise clearly and specifically limited.

[0031] In this description of the present invention, unless otherwise explicitly stated and limited, the terms “attached,” “connected,” and “connected” should be interpreted broadly, and may include, for example, fixed connections, removable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections via an intermediary; and internal communication between two elements or interaction relationships between two elements. Those skilled in the art will be able to understand the specific meaning of these terms in the present invention depending on the specific circumstances.

[0032] In the present invention, unless otherwise explicitly stated and limited, the presence of a first feature "above" or "below" a second feature may include direct contact between the first and second features, or it may include contact via other features between them, rather than direct contact between them. Furthermore, the presence of a first feature "above," "above," or "on the top surface" of a second feature may include the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal altitude than the second feature. The presence of a first feature "below," "below," or "on the bottom surface" of a second feature may include the first feature being directly below or diagonally below the second feature, or simply indicating that the first feature is at a lower horizontal altitude than the second feature.

[0033] The disclosures of this application provide different embodiments or examples to realize different structures of the present invention. To simplify the disclosures of the present invention, the parts and installations of specific examples are described herein. These are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat numbers and / or letters in different examples, such repetitions are used to simplify and clarify the purpose and do not in themselves indicate relationships between the various embodiments and / or installations considered. Furthermore, while the present invention provides examples of various specific processes or materials, those skilled in the art will be aware of the application of other processes and / or the use of other materials.

[0034] Energy storage systems typically include multiple battery packs that are stacked on top of each other. Each battery pack has an opening at the bottom of its housing, and connection terminals are provided in this opening. During assembly, each battery pack connects to the battery pack below it via the connection terminals, while the lower battery pack seals the opening in the upper battery pack. The presence of these openings makes it easy for water to enter the battery packs, particularly the bottom battery pack, potentially damaging the energy storage system or leading to safety accidents.

[0035] In some embodiments, as shown in Figure 1, the energy storage equipment 100 provided in this application may be a balcony photovoltaic energy storage equipment, which is relatively compact, easy to transport or move, and can be relocated according to the user's power consumption needs, for example, from a balcony to a garage or outdoors.

[0036] Referring to Figures 1 to 3, the energy storage equipment 100 of the embodiment of the present application includes a battery pack 10, a waterproof plug 20, and a water ingress detection unit 30. The battery pack 10 includes a housing 11 and a connection terminal 12, the housing 11 having an opening 111 and the connection terminal 12 being provided in the opening 111. The waterproof plug 20 includes an electrical connection component 21, which is electrically connected to the connection terminal 12 when the waterproof plug 20 seals the opening 111 and is arranged to form a first signal when water enters the opening 111. The water ingress detection unit 30 is arranged to detect the first signal and confirm that water has entered the opening 111.

[0037] The energy storage equipment 100 submitted as an embodiment of this application is equipped with a waterproof plug 20 at the opening 111 of the battery pack 10 at the bottom, and the waterproof plug 20 forms a first signal when water enters the opening 111. At the same time, a water ingress detection unit 30 is used to detect the first signal and determine whether or not water is leaking into the opening 111, thereby effectively improving the safety and reliability of the energy storage equipment 100 by enabling water ingress detection at the opening 111. Furthermore, the waterproof plug 20 is small in volume and has a simple structure, which is advantageous in reducing the production cost of the energy storage equipment 100.

[0038] Specifically, the energy storage device 100 is a device that stores electrical energy or other forms of energy and releases them when needed to supply them to a power grid or other equipment. In the embodiment of this application, the energy storage device 100 refers to a household portable energy storage device 100, which generally includes a functional module and a plurality of battery packs 10, with the plurality of battery packs 10 stacked together, where the plurality of battery packs may specifically include an integrated energy storage device and at least one power pack, the inside of the integrated energy storage device mainly includes an inverter and battery modules, and the power pack mainly includes battery modules, and as shown in Figure 1, after stacking at least one power pack in the integrated energy storage device, electrical conduction and signal conduction can be achieved between the integrated device and the power pack by connecting their respective connection terminals, thereby enabling an expansion of the battery capacity of the energy storage device 100.

[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 inverters and power components. Furthermore, by incorporating advanced technologies such as artificial intelligence and big data, the operating strategy of the energy storage facility 100 can be optimized, improving energy utilization efficiency and system stability.

[0040] The battery pack 10 is the central part of the energy storage facility 100 and is used for storing and releasing electrical energy. To improve the amount of electrical energy stored, there are generally multiple battery packs 10, 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 generally a resin injection-molded plastic housing 11, and handles 113 are provided on both sides along the height direction of the housing 11 for transporting and moving the battery pack 10, and support legs 114 are provided at the bottom of the housing 11 to support the housing 11, and when the battery pack 10 is used individually, the support legs 114 can be used to support the battery pack 10 and provide a certain degree of waterproofing. Correspondingly, there is a housing groove 112 at the top of the housing 11 used to accommodate the support legs 114, and when multiple battery packs 10 are stacked, the support legs 114 can be placed in the housing groove 112, which increases the contact area of ​​the housings 11 of adjacent battery packs 10, distributes the pressure and makes the stack more solid. In addition, since the opening 111 is generally provided at the bottom, the tight bonding of the housings 11 can also achieve a seal of the opening 111. With the housing 11 installed in this manner, the multiple battery packs 10 are connected to each other in a manner similar to building blocks, and the user can conveniently reduce or increase the number of battery packs 10 based on their needs.

[0042] Since the opening 111 is generally located at the bottom and the connection terminal 12 is generally located at the bottom of the battery pack 10, a connection plug 15 is correspondingly located 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 is inserted into the opening 111 of the top battery pack 10 and electrically connected to the connection terminal 12, enabling communication between the two battery packs 10.

[0043] In other embodiments, the connection terminal 12 may be provided at the top of the battery pack 10, and the connection plug 15 may be provided at 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. It can monitor changes in water level or water leakage in real time, and if an abnormality is detected, it can immediately issue an alarm, thereby preventing serious accidents or property losses.

[0045] Referring to Figures 3 to 8, in some embodiments, the connection terminal 12 includes a first probe base 121 and a second probe base 122, the water ingress detection unit 30 is connected to the first probe base 121 and the second probe base 122, the electrical connection component 21 includes a first signal probe 211, a second signal probe 212 and a water ingress detection line 24, the first signal probe 211 is connected to the second signal probe 212 via the water ingress detection line 24, and water ingress The water ingress detection wire 24 is positioned to form a first signal when water enters. 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. The water ingress detection unit 30 detects the first signal by sensing the electrical parameters of the water ingress detection wire 24 via the first probe base 121 and the second probe base 122.

[0046] In this way, the water ingress detection unit 30 can detect whether water is leaking into the opening 111 of the battery pack 10 by changing electrical parameters.

[0047] In some embodiments, the electrical parameters may be the voltage, current, or resistance of the water ingress detection wire 24.

[0048] Specifically, in this embodiment, when the water ingress detection wire 24 is not immersed in water, its resistance is generally high, almost like a complete disconnection, and its value is generally greater than 1000 kilohms. When water enters the bottom of the housing, the water ingress detection wire is immersed in water, the resistance decreases, and its value becomes less than 1000 kilohms, generally between tens and 200 kilohms.

[0049] Therefore, when water ingress occurs, the resistance of the water ingress detection wire 24 between the first probe stand 121 and the second probe stand 122 becomes less than the set value, which signals that there is water at the bottom of the battery pack 10 housing.

[0050] Referring to Figure 8, in some embodiments, the water ingress detection line 24 includes a first detection line 241 or a second detection line 242 provided at intervals, the first detection line 241 being connected to a first signal probe 211, and the second detection line 242 being connected to a second signal probe 212.

[0051] Thus, the water ingress detection wire 24 has a simple structure, low cost, and is advantageous in reducing the production cost of the energy storage equipment 100.

[0052] Specifically, the first detection wire 241 and the second detection wire 242 are provided at an interval, which corresponds to a disconnection, and the resistance is almost infinite, generally understood to be greater than 1000 kilohms. If the water level is too high, both the first detection wire 241 and the second detection wire 242 will be submerged in water, and at this time, the first detection wire 241 and the second detection wire 242 will be connected by water, and the resistance value can be reduced.

[0053] The distance between the first detection line 241 and the second detection line 242 must not be too large, so as to prevent the first detection line 241 and the second detection line 242 from being unable to conduct electricity.

[0054] Selectively, the shape of the first detection wire 241 can be arranged as an E-shape, S-shape, M-shape, H-shape, etc., to facilitate the conduction of the first detection wire 241 and the second detection wire 242 by water. Similarly, the shape of the second detection wire 242 can be arranged as an E-shape, S-shape, M-shape, H-shape, etc. In this embodiment, the first detection wire 241 and the second detection wire 242 are arranged opposite each other in an E-shape.

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

[0056] In this way, the water ingress detection wire 24 is located at a low position on the battery pack 10, and by making contact with the water at the bottom of the battery pack 10 as quickly as possible, it can generate the first signal as quickly as possible.

[0057] Specifically, since the waterproof plug 20 is located at the bottom of the battery pack 10, the surface of the waterproof plug 20 that is separated from the battery pack 10 is the surface of the bottom of the battery pack 10 that is closest to the ground. By placing the water ingress detection line 24 here, rising water can be detected more quickly, allowing the user a longer processing time. This is advantageous in improving the reliability and service life of the energy storage equipment 100.

[0058] Referring to Figure 7, in some embodiments, the electrical connection component 21 is arranged to connect to the connection terminal 12 to form a second signal when the waterproof plug 20 seals the opening 111, and the energy storage equipment 100 is

[0059] The system includes a short-circuit detection unit 40, which is positioned to detect a second signal and determine that the battery pack 10 is in the bottom position, making it convenient for the battery pack to perform communication address coding.

[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 is convenient for the battery pack to perform communication address coding.

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

[0062] Multiple battery packs 10 can be stacked, and the stacked battery packs 10 can communicate with each other and be recognized according to different addresses. For example, the top battery pack 10 is the first, and the addresses increase by 1 sequentially from top to bottom, with the bottommost one being the last. The short-circuit detection unit 40 can recognize the second signal generated when connected to the connection terminal 12 of the electrical connection component 21. If the bottommost battery pack 10 is short-circuited and does not generate the second signal, it is not the bottommost battery pack 10, and the addresses continue to increase by 1 sequentially. When a battery pack 10 generates a recognition signal, the short-circuit detection unit 40 recognizes the signal and determines that it is the last battery pack 10. At this point, the addresses do not continue to increase, and the number of battery packs 10 is determined by the address of the last battery pack 10.

[0063] Referring to Figures 7 and 8, in some embodiments, a first probe stand 121 is connected to a power supply terminal 50, a second probe stand 122 is connected to a ground terminal 60 via a first resistor 70, a first signal probe 211 is connected to a second signal probe 212 via a diode 25, the energy storage equipment 100 further includes a control component, the control component includes a first switching component 81, a second switching component 82 and a control device 80, the first switching component 81 is provided between the water ingress detection unit 30 and the first probe stand 121 and the second probe stand 122, the second switching component 82 is provided between the power supply terminal 50 and the first probe stand 121 and the ground terminal 60 and the second probe stand 122 The control device 80 is used to control the first switching component 81 and the second switching component 82, thereby switching the first probe stand 121 and the second probe stand 122 between a first state in which they are connected to the water ingress 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 stand 121 and the second probe stand 122 are in the second state, the short-circuit detection unit 40 detects a second signal to confirm that the battery pack 10 is at the bottom. When the first probe stand 121 and the second probe stand 122 are in the first state and the waterproof plug 20 is sealing the opening 111, the water ingress detection unit 30 is controlled to detect a first signal to confirm that water is entering the opening 111.

[0064] In this way, the control component controls the working states of the short-circuit detection unit 40 and the water ingress detection unit 30 by switching the working states of the first probe stand 121 and the second probe stand 122, thereby allowing the short-circuit detection unit 40 and the water ingress detection unit 30 to operate alternately.

[0065] Specifically, the second signal is a high level at the second probe base 122. The short-circuit detection method works as follows: if the waterproof plug 20 is not installed, the second probe base 122 is pulled down to the power supply's ground terminal 60 via a resistor. At this time, the second probe base 122 is at a low level, and it can be recognized that the battery pack 10 does not have the waterproof plug 20 installed and is not located at the bottom.

[0066] When the waterproof plug 20 is installed, the first probe base 121 is connected to the first signal probe 211, the second probe base 122 is connected to the second signal probe 212, and the power supply terminal 50 goes 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, the waterproof plug 20 is installed on the battery pack 10, and it can be recognized that this is the bottommost battery pack 10.

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

[0068] The first switching component 81 and the second switching component 82 are both interlocking switches, and the two interlocking switches each serve as one circuit. Furthermore, the first switching component 81 includes a first switch and a second switch, which are interlocking; that is, when the first switch is turned off, the second switch is turned off synchronously, and when the first switch is turned on, the second switch is turned on synchronously. Similarly, the second switching component 82 includes a third switch and a fourth switch, which are interlocking; that is, when the third switch is turned off, the fourth switch is turned off synchronously, and when the third switch is turned on, the fourth switch is turned on synchronously. Both the first switch and the fourth switch are electrically connected to the first probe base 121, and both the second switch and the third switch are electrically connected to the second probe base 122. The other end of the first switch and the second switch are electrically connected to the water ingress detection unit 30, the other end of the third switch is connected to the grounding 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 other embodiments, four non-interlocking 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 provided on the battery pack 10.

[0071] Thus, 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 lowered, which indirectly reduces the maintenance cost of the energy storage equipment 100.

[0072] Specifically, the battery pack 10 is equipped with a microcontroller 80. The microcontroller 80 is a central processing unit with appropriately reduced frequency and specifications, and integrates peripheral interfaces such as memory, counters, USB, A / D converter, UART, PLC, DMA, and LCD driving electrical circuitry into a single chip, forming a chip-level computer that controls different combinations for different applications. In this embodiment, the water ingress detection unit 30, short-circuit detection unit 40, and control components are all provided on the microcontroller 80.

[0073] Referring to Figures 3 and 4, in some embodiments, the waterproof plug 20 includes a sealing bottom plate 22, the electrical connection component 21 is provided on the sealing bottom plate 22, the electrical connection component 21 fits into 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 this application, the seal bottom plate 22 is a thin plate component, the size of the seal bottom plate 22 is larger than the size of the opening 111, and furthermore, when the waterproof plug 20 is attached to the housing 11, a seal pattern can be provided on the area of ​​the surface of the seal bottom plate 22 that is close to the housing 11 and adheres to the housing 11.

[0076] Furthermore, transitional chamfers are provided on all corners of the seal base plate 22, which makes processing convenient and also prevents injuries to hands, thereby improving the safety of producers and assembly workers.

[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 away from the housing 11, forming a curved section 221. In this way, the curved sections 221 are provided at both ends of the seal bottom plate 22, making it convenient to attach and detach the waterproof plug 20.

[0078] Specifically, the curved portion 221 has a semicircular shape, and the edge where the diameter of the semicircle is located is connected to the seal bottom plate 22. The angle formed between the curved portion 221 and the housing 11 must not be too small; if the angle is too small, sufficient convenience cannot be obtained when attaching or removing the waterproof plug 20. The angle formed between the curved portion 221 and the housing 11 must not be too large; if the angle is too large, the curved portion 221 can be extended outward over a long distance, making it easier to subject the curved portion to collisions. If a collision occurs with the curved portion 221, it is likely to cause the waterproof plug 20 to fall off, destroying the waterproofing of the battery pack 10 and creating a safety problem. At the same time, if the angle is too large, the curved portion 221 is prone to breaking when subjected to a collision, damaging the waterproof plug 20 and increasing the cost of repairing and maintaining the battery pack 10. In the embodiments of this application, the angle formed between the curved portion 221 and the housing 11 is 15° to 45°, preferably 30°.

[0079] Referring to Figures 3 and 5, in some embodiments, the connection terminal 12 includes a first guide portion 13, the waterproof plug 20 includes a second guide portion 23, and the waterproof plug 20 is positioned such that the fitting of the first guide portion 13 and the second guide portion 23 ensures that the electrical connection component 21 is accurately inserted into the connection terminal 12.

[0080] Thus, the first guide portion 13 and the second guide portion 23 fit together and guide, which is advantageous for accurately aligning the electrical connection component 21 with the connection terminal 12.

[0081] Specifically, the first guide portion 13 and the connecting terminal 12 are integrally molded and integrated, and the second guide portion 23 and the waterproof plug 20 are also integrally molded and integrated.

[0082] In some embodiments, the connecting terminal 12 includes a terminal portion 14, the terminal portion 14 being columnar, the first guide portion 13 including the outer columnar surface 141 of the terminal portion 14, and the second guide portion 23 including a guide cover 231, the guide cover 231 extending upward from the seal bottom plate 22 and fitting with the outer columnar surface 141.

[0083] In this way, the fitting of the guide cover 231 and the outer column surface 141 simultaneously restricts the degrees of freedom in two directions, thereby improving the fitting accuracy between the electrical connection component 21 and the connection terminal 12.

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

[0085] Furthermore, the first guide portion 13 further includes a guide hole 131 formed on the end face of the terminal portion 14, and the second guide portion 23 includes a guide column 232, the guide column 232 extending upward from the seal bottom plate 22 and engaging with the guide hole 131, and the height of the guide column 232 is greater than the height of the guide cover 231.

[0086] Thus, the fitting of the guide column 232 and the guide hole 131 is advantageous in further improving the fitting accuracy between the electrical connection component 21 and the connection terminal 12. Also, since the height of the guide column 232 is greater than the height of the guide cover 231, the guide column 232 fits into the guide hole 131 first and guides it, making the fitting of subsequent guide structures easier.

[0087] Specifically, there are multiple guide columns 232, and each guide column 232 is provided in one-to-one correspondence with a guide hole 131. In the embodiment of this application, there are three guide columns 232, and the shape and size of the three guide columns 232 are exactly the same, and the electrical connection component 21 is provided 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 plays a role in guiding and correcting the position, making it easier to achieve fitting and guiding between the guide cover 231 and the outer column surface 141.

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

[0090] In some embodiments, the system includes multiple battery packs 10, which are stacked on top of each other. Each battery pack 10 is connected to the battery pack below it via a connection terminal 12, and the bottom battery pack 10 is connected to a waterproof plug 20.

[0091] Specifically, the number of battery packs 10 is provided according to actual demand, and a waterproof plug 20 is provided at the bottom opening 111 of the bottommost battery pack 10.

[0092] In this specification, any reference to the terms “some embodiments,” “one embodiment,” “several embodiments,” “exemplary embodiments,” “examples,” “specific examples,” or “several examples” means that the specific features, structures, materials, or properties described in the described embodiments or examples are included in at least one of the embodiments or examples of this application. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or properties described may be combined in an appropriate manner in any one or more embodiments or examples.

[0093] Furthermore, the terms “first” and “second” are used solely for descriptive purposes and should not be understood as indicating or suggesting relative importance or specifying the number of technical features being referred to. For this reason, features designated as “first” or “second” may be explicitly or implicitly defined as including at least one of the aforementioned features. In the description of this application, “multiple” means at least two, for example, two or three, unless otherwise clearly and specifically defined.

[0094] Even though the above has already been explained by illustrating embodiments of this application, these embodiments are illustrative and cannot be understood as limitations on this application. Those skilled in the art can modify, alter, substitute, and transform these embodiments within the scope of this application, and the scope of this application is limited by the claims and their equivalents. [Explanation of symbols]

[0095] 100 Energy storage facilities 10 battery packs 11 Housing 111 Aperture 112 Retaining groove 113 Pull handle 114 Support legs 12 Connection terminals 121 First probe stand 122 Second probe platform 13. First Guide Section 131 Guide hole 14 Terminal section 141 External column surface 15 connection plugs 20 Waterproof plugs 21 Electrical connection components 211 First signal probe 212 Second signal probe 22 Seal base plate 221 Curvature 23 Second Guide Section 231 Guide Cover 232 Guidepost 24 Water Ingress Detection Lines 241 First detection line 242 Second detection line 25 Bypass 30 Water Intrusion Detection Unit 40 Short-circuit detection unit 50 Power supply terminal 60 Ground terminal 70 The First Resistance 80 Control device 81 First opening / closing component 82 Second opening / closing component

Claims

1. Energy storage equipment, The system includes a battery pack, a waterproof plug, and a water ingress detection unit, the battery pack including a housing and connection terminals, the housing having an opening, and the connection terminals being provided in the opening. The waterproof plug includes an electrical connection component, which is electrically connected to the connection terminal when the waterproof plug seals the opening, and is arranged to form a first signal when water enters the opening. The water intrusion detection unit is arranged to detect the first signal and determine that water has entered the opening. The connection terminal includes a first probe base and a second probe base, the water ingress detection unit is connected to the first probe base and the second probe base, the electrical connection component includes a first signal probe, a second signal probe and a water ingress detection line, the first signal probe is connected to the second signal probe via the water ingress detection line, the water ingress detection line is arranged to form the first signal when water ingress occurs, 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 when the waterproof plug seals the opening, and the water ingress detection unit detects the first signal by detecting the electrical parameters of the water ingress detection line via the first probe base and the second probe base. Energy storage equipment.

2. The energy storage device according to claim 1, characterized in that the electrical parameter may be the voltage, current, or resistance value of the water ingress detection line.

3. The energy storage facility according to claim 1, characterized in that the water ingress detection line includes a first detection line and a second detection line provided at intervals, the first detection line is connected to the first signal probe, and the second detection line is connected to the second signal probe.

4. The energy storage device according to claim 3, characterized in that the first detection line and the second detection line are provided on the surface of the waterproof plug that is away from the battery pack.

5. The electrical connection component is arranged to connect to the connection terminal to form a second signal when the waterproof plug seals the opening, and the energy storage equipment is, The energy storage device according to claim 1, comprising a short-circuit detection unit, wherein the short-circuit detection unit is positioned to detect the second signal and determine that the battery pack is located at the bottom.

6. The first probe stand is connected to a power supply terminal, the second probe stand 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 device further includes a control component, the control component includes a first switching component, a second switching component and a control device, the first switching component is provided between the water ingress detection unit and the first probe stand and the second probe stand, the second switching component is provided between the power supply terminal and the first probe stand and the ground terminal and the second probe stand, and the control device includes the first switching component and the second switching component The energy storage equipment according to claim 5, characterized in that it is used to control the first probe stand and the second probe stand to switch between a first state in which they are connected to the water ingress detection unit and a second state in which they are connected to the power supply terminal and the ground terminal, when the first probe stand and the second probe stand are in the second state, the short-circuit detection unit detects the second signal to confirm that the battery pack is located at the bottom, and when the first probe stand and the second probe stand are in the first state and the waterproof plug is positioned to seal the opening, the water ingress detection unit is controlled to detect the first signal to confirm that water has entered the opening.

7. The energy storage device according to claim 6, characterized in that the water ingress detection unit, the short-circuit detection unit, and the control component are all provided in the battery pack.

8. The energy storage apparatus according to claim 1, characterized in that the waterproof plug includes a sealing bottom plate, the electrical connection component is provided on the sealing bottom plate, the electrical connection component fits into the opening and engages with the connection terminal, and the sealing bottom plate seals the opening outside the housing.

9. The energy storage equipment according to claim 8, characterized in that the connection terminal includes a first guide portion, the waterproof plug includes a second guide portion, and the waterproof plug is arranged such that the fitting of the first guide portion and the second guide portion ensures that the electrical connection component is accurately inserted into the connection terminal.

10. The energy storage device according to claim 9, characterized in that the connection terminal includes a terminal portion, the terminal portion is columnar, the first guide portion includes the outer columnar surface of the terminal portion, the second guide portion includes a guide cover, the guide cover extends upward from the seal bottom plate and fits with the outer columnar surface.

11. The energy storage facility according to claim 1, characterized in that it 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 bottom battery pack is connected to the waterproof plug.

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