Wall-mounted energy storage power supply

Abstract

The utility model provides a wall-mounted energy storage power supply, which relates to the technical field of energy storage power supplies and comprises a shell, a battery module, a thermal fusing sliding weight assembly and an electronic assembly. The back of the shell is provided with an installation structure used for wall hanging installation. The battery module is arranged in the upper area in the shell, a bottom supporting frame is arranged at the bottom of the battery module, and the bottom supporting frame is fixedly connected with the shell; the thermal fusing sliding weight assembly is arranged in the lower area in the shell and is connected with a bottom supporting frame of the battery module through at least one thermal fusing connecting piece, and the thermal fusing connecting piece is made of a low-melting-point material; and the electronic component is arranged on the thermal fusing slider component and is electrically connected with the battery module through the detachable connector. When the battery module is subjected to thermal runaway, the thermal fusing connecting piece is fused, so that the thermal fusing sliding pendant assembly moves downwards under the action of gravity, and meanwhile, the detachable connector is disconnected, so that physical separation and electrical isolation between the battery module and the electronic assembly are realized.

Description

Technical Field

[0001] This utility model relates to the field of energy storage power technology, and in particular to a wall-mounted energy storage power supply. Background Technology

[0002] With the rapid development of energy storage technology, wall-mounted energy storage power supplies have been widely used in both residential and commercial applications due to their advantages such as space saving and easy installation. Wall-mounted energy storage power supplies typically integrate key components such as battery modules, inverters, and control circuits into a single casing. However, because battery modules may experience thermal runaway under abnormal conditions, potentially leading to fire or even explosion, ensuring the safety of wall-mounted energy storage power supplies is crucial.

[0003] Existing wall-mounted energy storage systems typically use a Battery Management System (BMS) for safety control. The BMS monitors parameters such as battery voltage, current, and temperature, and cuts off the charging and discharging circuits in abnormal situations to prevent thermal runaway. However, the BMS cannot completely prevent all possible failures, especially in the event of a short circuit within the battery cell.

[0004] Existing safety measures mainly target the normal operation of the battery module, and lack effective countermeasures for serious internal malfunctions of the battery module.

[0005] Therefore, existing wall-mounted energy storage power supplies need to be improved to overcome the shortcomings of the existing technology. Summary of the Invention

[0006] To overcome the problems existing in related technologies, the purpose of this utility model is to provide a wall-mounted energy storage power supply. This power supply mounts electronic components onto a thermally fused sliding assembly, which is then connected to the bottom support frame of the battery module via at least one thermally fused connector made of a low-melting-point material. When the battery module experiences thermal runaway, the thermally fused connector melts, causing the thermally fused sliding assembly to move downwards under gravity and separate from the battery module. Simultaneously, the detachable connector disconnects, achieving electrical isolation between the battery module and the electronic components.

[0007] A wall-mounted energy storage power supply, comprising:

[0008] The outer casing has a mounting structure on its back for wall mounting.

[0009] A battery module is located in the upper part of the housing, and a bottom support frame is provided at the bottom of the battery module, which is fixedly connected to the housing.

[0010] A thermally fused slip assembly is located in the lower region inside the housing and is connected to the bottom support frame of the battery module via at least one thermally fused connector, which is made of a low-melting-point material.

[0011] Electronic components are mounted on the thermally fused slip assembly and are electrically connected to the battery module via a detachable connector.

[0012] Furthermore, the thermally fused slip-off assembly includes:

[0013] The main frame is used to mount the electronic components;

[0014] Slide rails are installed on both sides of the main frame;

[0015] The guide rails are installed on the inner walls of both sides of the housing and cooperate with the slide rails to form a sliding connection.

[0016] The thermally fused sliding assembly adopts a structure of main frame, slide rail and guide rail, which allows electronic components to slide smoothly along the guide rail after the thermally fused connector melts, avoiding jamming or tilting during the sliding process and ensuring the reliability and smoothness of sliding separation.

[0017] Furthermore, the electronic component includes:

[0018] A control circuit device, which is fixed to the main frame, includes at least one of a battery management unit, a power conversion unit, a protection unit, and a communication unit.

[0019] An electrical interface panel is provided with a DC power input port, a DC power output port, a data communication interface, a status indicator light, and an emergency circuit breaker. The electrical interface panel is located at the bottom of the housing and serves as the base plate of the housing. The electrical interface panel is fixedly connected to the main frame.

[0020] Integrating the control circuitry and electrical interface panel onto the thermally fused slip-off assembly allows all critical electronic components to detach from the battery module in the event of thermal runaway, preventing damage from a fire. Simultaneously, the electrical interface panel, serving as the base plate of the housing, simplifies the structure and facilitates wiring and operation for the user.

[0021] Furthermore, the thermoplastic connector is a thermoplastic rivet, which is made of a low-melting-point alloy material;

[0022] The top of the main frame and the bottom support frame are riveted together by the hot melt rivets.

[0023] The use of thermoplastic rivets as the thermally fused connectors, along with the riveting method, results in a simple, reliable structure that is easy to manufacture and install. Furthermore, the thermoplastic rivets can rapidly melt and break in the event of thermal runaway of the battery module, ensuring the timely separation of the thermally fused slip-out assembly.

[0024] Furthermore, a protective partition is provided inside the outer casing. The protective partition is located directly below the thermoplastic rivet and has a gap between it and the bottom support frame of the battery module to receive the molten product of the thermoplastic rivet.

[0025] The protective partition can effectively catch the molten material generated after the thermoplastic rivet melts, preventing it from dripping onto the electronic components below and causing damage or short circuits, thus further improving safety.

[0026] Furthermore, the low-melting-point alloy material is one or more of bismuth-based alloys, tin-based alloys, or indium-tin alloys.

[0027] These alloy materials have the characteristics of low melting point and stable performance, which can ensure that the thermoplastic rivets melt quickly in the event of thermal runaway of the battery module and maintain sufficient connection strength at normal operating temperature.

[0028] Furthermore, support legs are fixedly installed on both sides of the bottom of the outer casing to support the wall-mounted energy storage power supply.

[0029] The electrical interface panel is provided with a through slot for the support leg to pass through. The through slot is correspondingly provided with the support leg, and the support leg extends vertically downward through the electrical interface panel.

[0030] The outriggers support the wall-mounted energy storage unit, preventing the electrical interface panel from directly contacting the ground before installation on the wall. Through slots on the electrical interface panel allow the outriggers to pass through, enabling them to be positioned near the edge of the casing. This makes the wall-mounted energy storage unit more stable, increases the flexibility of the electrical interface panel installation, and prevents it from creating resistance during a fall.

[0031] Furthermore, the detachable connector includes a first connector and a second connector;

[0032] The first connector is electrically connected to the battery module via a cable, and the second connector is electrically connected to the electronic component via a cable. The second connector is fixed to the main frame and electrically connected to the electronic component. The interface of the second connector faces upward, and the first connector and the second connector are pluggably connected.

[0033] The battery module and electronic components are connected by a detachable connector, which automatically disconnects when the thermally fused sliding assembly slides down. This makes the electrical connection and disconnection between the battery module and electronic components more convenient and reliable, avoiding sliding obstruction or electrical failure caused by pulling on the connecting cables.

[0034] Furthermore, the thermally fused slip assembly also includes a buffer spring, one end of which is connected to the housing and the other end of which is connected to the main frame or the slide rail.

[0035] By incorporating a buffer spring into the thermally fused slipper assembly, the impact force during its descent can be effectively buffered, the descent speed reduced, and electronic components prevented from being damaged by impact, thereby improving the reliability of the system.

[0036] Furthermore, a damping structure is provided between the slide rail and the guide rail, the damping structure being used to increase the friction between the slide rail and the guide rail.

[0037] By installing a damping structure between the slide rail and the guide rail, the sliding speed of the thermally fused sliding component can be controlled by increasing friction, avoiding impact damage caused by excessive sliding speed, and further improving the safety and reliability of the system.

[0038] The beneficial effects of this utility model are as follows:

[0039] This invention provides a wall-mounted energy storage power supply that employs a thermally fused sliding assembly design, separating the electronic components from the battery module vertically. The thermally fused sliding assembly is connected to the bottom support frame of the battery module via a thermally fused connector made of a low-melting-point material. Under normal operating conditions, the thermally fused connector provides a stable connection; when the battery module experiences thermal runaway, the thermally fused connector rapidly melts at high temperatures, causing the thermally fused sliding assembly to separate from the battery module under its own weight, and automatically disconnecting the electrical connection with the battery module via a detachable connector. This design enables rapid and reliable physical and electrical isolation between the battery module and the electronic components in the event of a serious battery module failure, effectively preventing the spread of fire to the electronic components and avoiding greater property damage and safety hazards, significantly improving the safety of the wall-mounted energy storage power supply. Attached Figure Description

[0040] Figure 1 This is a perspective view of the wall-mounted energy storage power supply provided in embodiment 2 of this application;

[0041] Figure 2 This is a side view of the wall-mounted energy storage power supply provided in embodiment 2 of this application;

[0042] Figure 3 This is a front view of the wall-mounted energy storage power supply provided in this application after removing the front cover.

[0043] Figure 4 yes Figure 3 AA cross-section view;

[0044] Figure 5This is a cross-sectional view of the bottom support frame, protective partition and detachable connector provided in this application;

[0045] Figure label:

[0046] 100. Outer shell; 110. Mounting structure; 120. Support legs; 130. Handle; 150. Human-computer interaction area;

[0047] 200. Battery module; 210. Bottom support frame;

[0048] 300. Hot melt slip assembly; 310. Hot melt disconnect connector; 320. Main frame; 330. Slide rail; 340. Guide rail; 350. Protective partition;

[0049] 400. Electronic components; 410. Control circuit devices; 420. Electrical interface panels;

[0050] 500. Detachable connector. Detailed Implementation

[0051] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0052] Example 1

[0053] like Figures 1 to 5 As shown, this embodiment provides a wall-mounted energy storage power supply, which includes a housing 100, a battery module 200, a thermally fused slip-off assembly, and electronic components 400.

[0054] The housing 100 is made of metal, providing good strength and heat dissipation. A mounting structure 110 is located on the back of the housing 100 for fixing the energy storage power source to a wall.

[0055] The battery module 200 is located in the upper part of the housing 100 and consists of multiple lithium iron phosphate battery cells and connecting pieces. A metal bottom support frame 210 is provided at the bottom of the battery module 200. The bottom support frame 210 is fixedly connected to the housing 100 by bolts to ensure that the battery module 200 is securely installed inside the housing 100.

[0056] The thermoplastic sliding assembly is located in the lower part of the housing 100 and mainly includes a main frame 320, a slide rail 330, a guide rail 340, and thermoplastic rivets. The main frame 320 is made of aluminum alloy and is used to mount the electronic component 400. The slide rail 330 is mounted on both sides of the main frame 320, and the guide rail 340 is mounted on the inner walls of both sides of the housing 100. The slide rail 330 and the guide rail 340 cooperate to form a sliding connection. The thermoplastic rivets are made of bismuth-based low-melting-point alloy material and pass through the through-hole at the top of the main frame 320 and the hole in the bottom support frame 210 of the battery module 200, fixing the main frame 320 to the bottom support frame 210 by riveting.

[0057] Electronic components 400 are mounted on the main frame 320 and include control circuitry 410 and an electrical interface panel 420. Control circuitry 410 includes a battery management unit, a power conversion unit, a protection unit, and a communication unit. The electrical interface panel 420 is equipped with a DC power input port, a DC power output port, an RS485 communication interface, status indicator lights, and an emergency circuit breaker. The electrical interface panel 420 forms the base plate of the housing 100.

[0058] The battery module 200 is electrically connected to the electronic component 400 via cables and a detachable connector 500. The detachable connector 500 includes a first connector and a second connector. The first connector is electrically connected to the battery module 200 via a cable, and the second connector is electrically connected to the electronic component 400 via a cable. The second connector is fixed to the main frame 320 with its interface facing upwards, and the first connector and the second connector are detachably mated together.

[0059] Support legs 120 are fixedly installed on both sides of the bottom of the outer casing 100 to support the energy storage power supply before wall mounting. The electrical interface panel 420 is provided with a through groove, which is located inside the support legs 120, and the support legs 120 extend vertically downward through the electrical interface panel 420.

[0060] The main frame 320 is also equipped with a protective partition 350, which is located directly below the hot melt rivet and has a gap between it and the bottom support frame 210 of the battery module 200.

[0061] The thermally fused drop assembly also includes a buffer spring, one end of which is connected to the bottom of the housing 100, and the other end to the main frame 320. More specifically, one end of the spring is connected to the top of the slide rail 330 on the main frame 320, and the other end is connected near the middle of the slide rail 330. This provides a downward pull at the front of the thermally fused drop assembly, increasing the falling force and ensuring the first and second connectors of the detachable connector 500 disconnect. It also provides an upward pull at the front of the thermally fused drop assembly to prevent...

[0062] Working principle:

[0063] Under normal operating conditions, thermoplastic rivets secure the thermoplastic sliding component to the bottom support frame 210 of the battery module 200, and the electronic component 400 is electrically connected to the battery module 200 via a detachable connector 500. When the battery module 200 experiences thermal runaway, the temperature rises, and heat is transferred to the thermoplastic rivets. When the temperature reaches the melting point of the bismuth-based alloy, the thermoplastic rivets melt, the main frame 320 loses its support, and slides downwards along the guide rail 340 under the influence of gravity and the elastic force of the buffer spring. During this downward movement, the first and second connectors of the detachable connector 500 disconnect, achieving electrical isolation between the battery module 200 and the electronic component 400. After the main frame 320 slides to the bottom, the buffer spring acts as a buffer, protecting the electronic component 400 from impact damage. The protective partition 350 catches the molten bismuth-based alloy, preventing it from dripping onto the electronic component 400 and causing damage.

[0064] Example 2

[0065] like Figures 1 to 5 As shown, this embodiment provides a wall-mounted energy storage power supply, which includes a housing 100, a battery module 200, a thermally fused slip-off assembly, and electronic components 400.

[0066] The outer casing 100 is made of metal, providing good strength and heat dissipation. A mounting structure 110 is located on the back of the outer casing 100 for fixing the energy storage power source to a wall. The mounting structure 110 is a hanging assembly, including a mounting base fixed to the wall and a hanging bracket fixed to the back of the outer casing 100. The interior of the outer casing 100 is divided into upper and lower sections by a partition; the upper section is used to install the battery module 200, and the lower section is used to install the thermally fused sliding assembly. Guide rails 340 are installed on the inner walls of both sides of the outer casing 100. Handles 130 are provided on the outer walls of both sides of the outer casing 100, and a human-machine interface area 150, including a display screen and control buttons, is located on the upper part of the front of the outer casing 100.

[0067] The battery module 200 is located in the upper part of the housing 100 and consists of multiple lithium iron phosphate battery cells, connecting pieces, and a battery frame. The bottom of the battery module 200 is provided with a metal bottom support frame 210, which is fixedly connected to the housing 100 by bolts to ensure that the battery module 200 is securely installed inside the housing 100.

[0068] The thermoplastic break-off slip assembly is located in the lower part of the housing 100 and mainly includes a main frame 320, slide rails 330, guide rails 340, and thermoplastic bolts. The main frame 320 is made of aluminum alloy and is used to mount the electronic component 400. Threaded holes are provided at the top of the main frame 320. The slide rails 330 are mounted on both sides of the main frame 320 and cooperate with the guide rails 340 on the inner walls of both sides of the housing 100 to form a sliding connection. The slide rails 330 and guide rails 340 use a dovetail joint. The guide rails 340 are mounted on the inner walls of both sides of the housing 100 and cooperate with the slide rails 330 to form a sliding connection.

[0069] In this embodiment, a thermoplastic bolt is used as the thermoplastic connector 310. The thermoplastic bolt is made of tin-based low-melting-point alloy material. The bolt shank passes through the through hole on the bottom support frame 210 of the battery module 200 and the threaded hole on the top of the main frame 320, and the main frame 320 is fixed to the bottom support frame 210 by a nut.

[0070] Electronic components 400 are mounted on the main frame 320 and include control circuitry 410 and an electrical interface panel 420. Control circuitry 410 includes a battery management unit, a power conversion unit, a protection unit, and a communication unit. Control circuitry 410 is fixed to the main frame 320. The electrical interface panel 420 integrates a DC power input port, a DC power output port, a CAN bus communication interface, LED status indicators, and an emergency stop knob. The electrical interface panel 420 forms the base plate of the housing 100.

[0071] The detachable connector 500 includes a first connector and a second connector. The first connector is electrically connected to the battery module 200 via a cable, and the second connector is electrically connected to the electronic component 400 via a cable. The second connector is fixed to the main frame 320 with its interface facing upwards, and the first connector and the second connector are detachably mated together.

[0072] In this embodiment, multiple permanent magnets and a metal plate are arranged between the slide rail 330 and the guide rail 340, and magnetic damping is used to control the downward sliding speed. Specifically, the permanent magnets are mounted on the slide rail 330, and the metal plate (e.g., a copper plate) is mounted on the guide rail 340, or the permanent magnets are mounted on the guide rail 340, and the metal plate is mounted on the slide rail 330. When the slide rail 330 slides relative to the guide rail 340, the metal plate cuts the magnetic field lines generated by the permanent magnets, generating eddy currents, which in turn generate damping force to prevent sliding.

[0073] In this embodiment, the bottom of the outer casing 100 is not provided with support legs 120.

[0074] In this embodiment, a small metal box is provided below the hot-melt bolt. The small metal box is fixed to the main frame 320 by screws and is used to collect molten tin-based metal.

[0075] Working principle:

[0076] Under normal operating conditions, the thermoplastic bolts secure the thermoplastic slip assembly to the bottom support frame 210 of the battery module 200. The electronic component 400 is electrically connected to the battery module 200 via the detachable connector 500, and the energy storage power supply operates normally. When the battery module 200 experiences thermal runaway, its temperature rises rapidly. The high temperature is transferred to the thermoplastic bolts through the bottom support frame 210. When the temperature of the thermoplastic bolts reaches the melting point of the tin-based alloy, the threaded portion of the bolt melts, causing the thermoplastic slip assembly to lose its support. Under the combined action of gravity and magnetic damping, the thermoplastic slip assembly slowly slides downwards along the guide rail 340. During this downward movement, the first and second connectors of the detachable connector 500 separate, achieving electrical isolation between the battery module 200 and the electronic component 400. The molten tin-based alloy drips and eventually flows into a small metal box, preventing it from contaminating or damaging the electronic component 400. The thermally fused sliding component eventually slides to the bottom of the housing 100 and is magnetically attracted, completely separating from the battery module 200, thus protecting the electronic components 400.

[0077] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this application. Any specific values ​​in all examples shown and discussed herein should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0078] Furthermore, it should be noted that the use of terms such as "first" and "second" is merely for ease of distinction, and unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application.

[0079] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wall-mounted energy storage power supply, characterized by, The wall-mounted energy storage power supply comprises: a housing (100), the back of which is provided with a mounting structure (110) for wall mounting; a battery module (200) arranged in an upper region inside the housing (100), the bottom of the battery module (200) being provided with a bottom support frame (210) fixedly connected with the housing (100); a thermal fuse falling assembly arranged in a lower region inside the housing (100) and connected with the bottom support frame (210) of the battery module (200) through at least one thermal fuse connecting piece (310) made of low-melting-point material; an electronic assembly (400) mounted on the thermal fuse falling assembly and electrically connected with the battery module (200) through a detachable connector (500).

2. The wall-mounted energy storage power supply according to claim 1, wherein: the thermal fuse falling assembly comprises: a main frame (320) for mounting the electronic assembly (400); slide rails (330) mounted on both sides of the main frame (320); and guide rails (340) mounted on the inner walls of both sides of the housing (100) and cooperating with the slide rails (330) to form a sliding connection.

3. The wall-mounted energy storage power supply according to claim 2, wherein: the electronic assembly (400) comprises: control circuit devices (410) fixed to the main frame (320), the control circuit devices (410) comprising at least one of a battery management unit, a power conversion unit, a protection unit and a communication unit; an electrical interface panel (420) provided with DC power input, DC power output ports, data communication interfaces, status indicator lights and emergency circuit breakers, the electrical interface panel (420) being arranged at the bottom of the housing (100) as a bottom plate of the housing (100) and fixedly connected with the main frame (320).

4. The wall-mounted energy storage power supply according to claim 3, wherein: the thermal fuse connecting piece (310) is a thermal rivet made of low-melting-point alloy material; the top of the main frame (320) is rivet-fixed with the bottom support frame (210) through the thermal rivet.

5. The wall-mounted energy storage power supply according to claim 4, wherein: a protective partition (350) is further arranged in the housing (100), the protective partition (350) being located directly below the thermal rivet and leaving a gap between the protective partition (350) and the bottom support frame (210) of the battery module (200) for receiving the melting product of the thermal rivet.

6. The wall-mounted energy storage power supply according to claim 4, wherein: the low-melting-point alloy material is one or more of a bismuth-based alloy, a tin-based alloy or an indium-tin alloy.

7. The wall-mounted energy storage power supply according to claim 4, wherein: Two sides of the bottom of the shell (100) are fixedly provided with supporting legs (120) for supporting the wall-mounted energy storage power supply, The electrical interface panel (420) is provided with a through slot for passing through the supporting leg (120), the through slot is correspondingly provided with the supporting leg (120), and the supporting leg (120) vertically penetrates out of the electrical interface panel (420).

8. The wall-mounted energy storage power supply according to claim 2, characterized in that: The detachable connector (500) comprises a first connector and a second connector; The first connector is electrically connected to the battery module (200) through a cable, the second connector is electrically connected to the electronic assembly (400) through a cable, the second connector is fixed on the main frame (320) and electrically connected to the electronic assembly (400), the interface of the second connector is upwardly arranged, and the first connector and the second connector are plug-in connected.

9. The wall-mounted energy storage power supply according to claim 2, characterized in that: The thermal fuse falling assembly further comprises a buffer spring, one end of the buffer spring is connected to the shell (100), and the other end of the buffer spring is connected to the main frame (320) or the sliding rail (330).

10. The wall-mounted energy storage power supply according to claim 2, characterized in that: A damping structure is arranged between the sliding rail (330) and the guide rail (340), and the damping structure is used for increasing the friction between the sliding rail (330) and the guide rail (340).

Images