Household high-voltage energy storage device

Abstract

The utility model relates to the technical field of battery energy storage, in particular to a household high-voltage energy storage device which comprises a base (1) and a box cover (2). A high-voltage electrical junction box (3) and a high-voltage battery box (4) are respectively arranged between the base (1) and the box cover (2); a mounting bracket (201) is arranged between the box cover (2) and the high-voltage electrical junction box (3); a first waterproof structure is arranged on the high-voltage electrical junction box (3); a second waterproof structure is arranged on the high-voltage battery box (4); the high-voltage electrical junction box (3) is connected with the high-voltage battery box (4); the device is stably fixed to a wall surface or other installation bodies through the installation support, and outdoor installation can be achieved; the first waterproof structure and the second waterproof structure prevent the direct-current circuit breaker from being short-circuited due to water inflow or dampness, and can improve the reliability of electrical connection. And meanwhile, the wires can be prevented from being exposed outside, and the safety and attractiveness of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery energy storage, and more specifically, the utility model relates to a household high-voltage energy storage device. Background Art

[0002] With the large-scale application and development of photovoltaic power generation systems and battery energy storage systems, household energy storage systems have gradually become popular. The household high-voltage energy storage system mainly includes a high-voltage electrical junction box and a high-voltage battery PACK box. The high-voltage electrical junction box is an important structure of the photovoltaic energy storage system.

[0003] Since the current energy storage high-voltage battery box and high-voltage electrical junction box adopt a design that is not waterproof and cannot be installed outdoors, the existing structure design of the electrical junction box is not reasonable enough. The wire harnesses are often exposed outside, the wire harnesses required for connection are long, the connection and installation complexity is high, the structure is not beautiful, and the protection measures are insufficient, there are safety risks.

[0004] The applicant found through retrieval that a Chinese patent document with the publication number of 203026863U disclosed a wiring structure of a DC junction box on June 26, 2013. It includes a box body, a DC circuit breaker, a fixed connector and a waterproof connector. The DC circuit breaker is installed inside the box body, and several fixed connectors are installed at the bottom of the box body. The DC circuit breaker is provided with wiring terminals. One end of the wiring terminal is connected to the fixed connector through a cable, and the other end of the fixed connector is connected to the waterproof connector through a cable. The length of the cable between the fixed connector and the waterproof connector is greater than the straight-line distance between the fixed connector and the waterproof connector. The wire harnesses of this device are exposed outside, with low safety and an unattractive structure.

[0005] Therefore, in order to improve or solve at least one of the above problems, it is necessary to optimize the existing high-voltage energy storage device. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a household high-voltage energy storage device with good safety performance, which can avoid wire harness exposure and can be installed outdoors.

[0007] To solve the above technical problems, the technical solution adopted by the utility model is: a household high-voltage energy storage device, including a base and a box cover; a high-voltage electrical junction box and a high-voltage battery box are respectively arranged between the base and the box cover; an installation bracket is arranged between the box cover and the high-voltage electrical junction box; a first waterproof structure is arranged on the high-voltage electrical junction box; a second waterproof structure is arranged on the high-voltage battery box; the high-voltage electrical junction box is connected to the high-voltage battery box.

[0008] The high-voltage battery box is respectively connected to the base and the high-voltage electrical junction box; the box cover is arranged on the side of the high-voltage electrical junction box away from the high-voltage battery box.

[0009] A first positioning structure is provided between adjacent high-voltage battery boxes; a second positioning structure is provided between the high-voltage battery box and the base; a third connection structure is provided between the high-voltage battery box and the high-voltage electrical connection box.

[0010] The first positioning structure includes a first positioning pin and a first positioning hole that mates with the first positioning pin; the first positioning pin and the first positioning hole are respectively provided at the top and bottom of the high-voltage battery box;

[0011] The second positioning structure includes a second positioning pin and a second positioning hole that mates with the second positioning pin; the second positioning pin is provided on the top surface of the base; the second positioning hole is provided on the side of the high-voltage battery box close to the base;

[0012] The third connection structure includes a third positioning pin and a third positioning hole that mates with the third positioning pin; the third positioning hole is provided on the bottom surface of the high-voltage electrical connection box; the third positioning pin is provided on the side of the high-voltage battery box close to the high-voltage electrical connection box.

[0013] The first waterproof structure includes a side cover of the connection box; the side cover of the connection box is connected to the end of the high-voltage electrical connection box; a DC terminal, a start switch, an RJ45 communication terminal, a first positive and negative communication integrated terminal, and a DC circuit breaker are respectively provided on the end surface of the high-voltage electrical connection box connected with the side cover of the connection box.

[0014] A first hinge is provided on one side of the end surface of the high-voltage electrical connection box, and the first hinge is connected to the side cover of the connection box; a first baffle is provided on the other side of the end surface of the high-voltage electrical connection box; a first clamping block is provided on the side surface of the first baffle; a first buckle is provided on the bottom surface of the side cover of the connection box; the first buckle is clamped between adjacent first clamping blocks.

[0015] The second waterproof structure includes a side cover of the battery box; the side cover of the battery box is provided at the end of the high-voltage battery box; a second positive and negative communication integrated terminal is provided on the end surface of the high-voltage battery box provided with the side cover of the battery box; a connection cable post is connected between the second positive and negative communication integrated terminal and the first positive and negative communication integrated terminal.

[0016] A second hinge is provided on one side of the end of the high-voltage battery box, and the second hinge is connected to the side cover of the battery box; a second baffle is provided on the other side of the end of the high-voltage battery box; a second clamping block is provided on the side surface of the second baffle; a second buckle is provided on the bottom of the side cover of the battery box; the second buckle is clamped between adjacent second clamping blocks.

[0017] A first side fixing plate is provided between adjacent high-voltage battery boxes; a second side fixing plate is provided between the high-voltage battery box and the high-voltage electrical connection box;

[0018] Threaded holes are provided on the side of the high-voltage electrical connection box away from the high-voltage battery box; connection bolts are provided on the box cover; the connection bolts are connected in the threaded holes.

[0019] Loose non-detachable screws are provided on both the battery box side cover and the connection box side cover; handles are provided on the top surfaces of both the high-voltage electrical connection box and the high-voltage battery box; an indicator light is provided on the high-voltage electrical connection box; waterproof glands are provided on the DC terminals, the first positive and negative communication integrated terminals, and the second positive and negative communication integrated terminals.

[0020] The beneficial effects of this application are as follows:

[0021] 1. In this application, the high-voltage electrical connection box and multiple high-voltage battery boxes are combined and connected together through the base and the box cover; while ensuring the energy storage capacity, the overall structure has good integrity; it can effectively improve the stability and safety of the device, and the structural aesthetics is good; this device is stably fixed to the wall or other installation bodies through the mounting bracket, and can be installed outdoors.

[0022] 2. The structure of the household high-voltage energy storage system in this application is reasonably designed, with high structural aesthetics and safety; the high-voltage electrical connection box and the high-voltage battery box, and between the high-voltage battery boxes are all connected through connection cable posts. A connection box side cover is provided at the end of the high-voltage electrical connection box, and a battery box side cover is provided at the end of the high-voltage battery box; the connection box side cover and the battery box side cover can prevent the DC circuit breaker and the wiring terminals from getting water or being affected by moisture and short-circuiting, which can improve the reliability of the electrical connection; at the same time, it can prevent the wire from being exposed outside, improving the safety and aesthetics of this device; waterproof glands are provided on the DC terminals, the first positive and negative communication integrated terminals, and the second positive and negative communication integrated terminals, which can further improve the waterproof effect.

[0023] 3. In this application, positioning pins and positioning holes are provided and matched between the high-voltage battery boxes, between the high-voltage battery box and the high-voltage electrical connection box, and between the high-voltage battery box and the base, which can effectively strengthen the connection stability between each component, and at the same time facilitate the positioning and installation process. Description of the Drawings

[0024] The following further details the specific implementation manners of the present utility model in conjunction with the drawings, where:

[0025] Figure 1 is a structural schematic diagram of this household high-voltage energy storage device.

[0026] Figure 2Schematic diagram of the connection structure between the high-voltage electrical junction box and the high-voltage battery box of this household high-voltage energy storage device.

[0027] Figure 3 Schematic diagram of the structure of the high-voltage electrical junction box of this household high-voltage energy storage device.

[0028] Figure 4 Schematic diagram of the structure of the high-voltage battery box of this household high-voltage energy storage device.

[0029] Figure 5 Oblique axonometric view of the open state of the side cover of the junction box and the side cover of the battery box of this household high-voltage energy storage device.

[0030] Figure 6 Top view of the open state of the side cover of the junction box and the side cover of the battery box of this household high-voltage energy storage device.

[0031] The markings in the above figures are all:

[0032] The markings in the figure are:

[0033] 1. Base, 101. Third positioning pin,

[0034] 2. Box cover, 201. Mounting bracket,

[0035] 3. High-voltage electrical junction box, 301. Side cover of the junction box, 302. First hinge, 303. First baffle, 304. First clamping block, 305. First buckle, 306. Threaded hole,

[0036] 4. High-voltage battery box, 401. First positioning pin, 402. Second positioning pin, 403. Side cover of the battery box, 404. Second positive and negative communication integrated terminal, 405. Connection cable post,

[0037] 5. DC terminal, 501. Start switch, 502. RJ45 communication terminal, 503. First positive and negative communication integrated terminal, 504. DC circuit breaker,

[0038] 6. Second hinge, 601. Second baffle, 602. Second clamping block, 603. Second buckle,

[0039] 7. First side fixing plate, 701. Second side fixing plate,

[0040] 8. Loctite screw, 801. Handle, 802. Indicator light. Detailed implementation manners

[0041] The following is a more detailed description of the specific implementation manners of the present utility model by describing the embodiments with reference to the accompanying drawings. The purpose is to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present utility model, and to facilitate its implementation.

[0042] Figure 1 The household high-voltage energy storage device shown includes a base 1 and a box cover 2; a high-voltage electrical junction box 3 and a high-voltage battery box 4 are respectively arranged between the base 1 and the box cover 2; an installation bracket 201 is arranged between the box cover 2 and the high-voltage electrical junction box 3; a first waterproof structure is arranged on the high-voltage electrical junction box 3; a second waterproof structure is arranged on the high-voltage battery box 4; the high-voltage electrical junction box 3 is connected to the high-voltage battery box 4.

[0043] The high-voltage electrical junction box 3 and multiple high-voltage battery boxes 4 are connected together through the base 1 and the box cover 2; while ensuring the energy storage capacity, the overall structure has good integrity; it can effectively improve the stability and safety of the device; this device is stably fixed to the wall or other installation bodies through the installation bracket 201 and can be installed outdoors; the first waterproof structure and the second waterproof structure prevent the DC circuit breaker from getting water or being affected by moisture and short-circuiting, and can improve the reliability of electrical connection; at the same time, it can prevent the wire from being exposed outside, improving the safety and aesthetics of this device;

[0044] The high-voltage battery box 4 is respectively connected to the base 1 and the high-voltage electrical junction box 3; the box cover 2 is arranged on the side of the high-voltage electrical junction box 3 away from the high-voltage battery box 4.

[0045] This device includes multiple high-voltage battery boxes 4, and the multiple high-voltage battery boxes 4 are connected in parallel; the high-voltage battery box 4 at the end of the combination is fixedly connected to the base 1, and the high-voltage battery box 4 at the head of the combination is fixedly connected to the high-voltage electrical junction box 3; the high-voltage electrical junction box 3 is fixedly connected to the box cover 2; the installation bracket 201 is an L-shaped plate; multiple installation holes are arranged on the installation bracket 201, and installation columns matching the installation holes are arranged on the top surface of the high-voltage electrical junction box 3. The installation bracket 201 is installed on the high-voltage electrical junction box 3 through the installation holes, and the other side of the installation bracket 201 is pressed by the box cover 2, so that the fixed connection of the installation bracket 201 between the high-voltage electrical junction box 3 and the box cover 2 can be realized.

[0046] A first positioning structure is arranged between adjacent high-voltage battery boxes 4; a second positioning structure is arranged between the high-voltage battery box 4 and the base 1; a third connection structure is arranged between the high-voltage battery box 4 and the high-voltage electrical junction box 3.

[0047] The first positioning structure can realize the fixed connection between adjacent high-voltage battery boxes 4; the second positioning structure can realize the fixed connection between the high-voltage battery box 4 and the base 1; the third connection structure can realize the fixed connection between the high-voltage battery box 4 and the high-voltage electrical junction box 3.

[0048] The first positioning structure includes a first positioning pin 401 and a first positioning hole matching the first positioning pin 401; the first positioning pin 401 and the first positioning hole are respectively arranged at the top and bottom of the high-voltage battery box 4;

[0049] The second positioning structure includes a second positioning pin 402 and a second positioning hole that cooperates with the second positioning pin 402; the second positioning pin 402 is provided on the top surface of the base 1; the second positioning hole is provided on one side of the high-voltage battery box 4 close to the base 1;

[0050] The third connection structure includes a third positioning pin 101 and a third positioning hole that cooperates with the third positioning pin 101; the third positioning hole is provided on the bottom surface of the high-voltage electrical connection box 3; the third positioning pin 101 is provided on one side of the high-voltage battery box 4 close to the high-voltage electrical connection box 3.

[0051] The top and bottom of the high-voltage battery box 4 are respectively provided with a first positioning pin 401 and a first positioning hole; the first positioning pin 401 of the high-voltage battery box 4 is fixedly inserted into the first positioning hole of the adjacent high-voltage battery box 4, thereby realizing the stable connection of multiple high-voltage battery boxes 4;

[0052] The second positioning hole and the first positioning hole are the same hole; there are four second positioning pins 402 on the base 1, and multiple high-voltage battery packs 4 are combined into a battery pack module; a second positioning hole is provided on the bottom surface of the high-voltage battery pack 4 at the tail of the battery pack module, and the second positioning pin 402 is fixedly inserted into the second positioning hole, thereby realizing the stable connection between the high-voltage battery pack 4 and the base 1.

[0053] The third positioning pin 101 and the first positioning pin 401 are the same pin, and multiple high-voltage battery packs 4 are combined into a battery pack module; four third positioning pins 101 are provided on the top surface of the high-voltage battery pack 4 at the head of the battery pack module, the third positioning hole is provided on the bottom surface of the high-voltage electrical connection box 3, and the third positioning pin 101 is fixedly inserted into the third positioning hole, thereby realizing the stable connection between the high-voltage battery box 4 and the high-voltage electrical connection box 3.

[0054] The first waterproof structure includes a junction box side cover 301; the junction box side cover 301 is connected to the end of the high-voltage electrical connection box 3; the DC terminal 5, the start switch 501, the RJ45 communication terminal 502, the first positive and negative communication integrated terminal 503, and the DC circuit breaker 504 are respectively provided on the end surface of the high-voltage electrical connection box 3 connected with the junction box side cover 301.

[0055] An electrical switch box is provided on the end face of the high-voltage electrical junction box 3, and the DC circuit breaker 504 is installed in the electrical switch box; the high-voltage electrical junction box 3 includes a main power input terminal, which is the starting point of the electrical junction box and is usually connected to the main power source, such as the power grid or a generator; they are connected to the inside of the high-voltage electrical junction box 3 through cables or wires; the DC circuit breaker 504 is installed after the main power input to protect each branch circuit and equipment from overcurrent and short circuit, and is connected to the main power input terminal through cables or wires; the DC terminal 5 is used to connect the positive and negative poles of the DC power supply or circuit, and the DC terminal 5 is connected to the output end of the DC circuit breaker 504; the start switch 501 is used to control the start and stop of the system; the start switch 501 is connected to the control circuit of the DC circuit breaker 504; the RJ45 communication terminal 502 is used for data communication and is connected to the equipment or system that requires data communication through communication equipment or a controller; the first positive and negative communication integrated terminal 503 is used for a specific communication interface and is connected to the communication control equipment or interface;

[0056] The side cover 301 of the junction box is a square cover plate, which can prevent the DC circuit breaker 504 from getting water or being affected by moisture and short circuit, and can improve the reliability of electrical connection; at the same time, it can prevent the wire from being exposed outside, improving the safety and aesthetics of the device.

[0057] On one side of the end face of the high-voltage electrical junction box 3, a first hinge 302 is provided, and the first hinge 302 is connected to the side cover 301 of the junction box; on the other side of the end face of the high-voltage electrical junction box 3, a first baffle 303 is provided; on the side of the first baffle 303, a first clamping block 304 is provided; on the bottom surface of the side cover 301 of the junction box, a first buckle 305 is provided; the first buckle 305 is clamped between adjacent first clamping blocks 304.

[0058] The side cover 301 of the junction box is connected to one side of the end face of the high-voltage electrical junction box 3 through the first hinge 302, so that the side cover 301 of the junction box can rotate flexibly on the high-voltage electrical junction box 3; the first baffle 303 is provided on the side of the side cover 301 of the junction box away from the first hinge 302; two first clamping blocks 304 are provided on the side of the first baffle 303; a clamping groove is provided between the two first clamping blocks 304, and the first buckle 305 is clamped in the clamping groove, so that the side cover 301 of the junction box can be fixedly connected to the high-voltage electrical junction box 3.

[0059] The second waterproof structure includes the side cover 403 of the battery box; the side cover 403 of the battery box is provided at the end of the high-voltage battery box 4; on the end face of the high-voltage battery box 4 where the side cover 403 of the battery box is provided, a second positive and negative communication integrated terminal 404 is provided; a connection cable post 405 is connected between the second positive and negative communication integrated terminal 404 and the first positive and negative communication integrated terminal 503.

[0060] Both ends of the connecting cable column 405 are respectively connected to the first positive and negative communication integrated terminal 503 and the second positive and negative communication integrated terminal 404, thereby realizing the communication between the high-voltage battery box 4 and the high-voltage electrical connection box 3; adjacent high-voltage battery boxes 4 are also connected through the connecting cable column 405; the battery box side cover 403 is a square cover plate, which can prevent the second positive and negative communication integrated terminal 404 from getting water or being affected by moisture and short-circuiting, and can improve the reliability of electrical connection; at the same time, it can prevent the wire from being exposed outside, enhancing the safety and aesthetics of the device.

[0061] On one side of the end of the high-voltage battery box 4, there is a second hinge 6; the second hinge 6 is connected to the battery box side cover 403; on the other side of the end of the high-voltage battery box 4, there is a second baffle 601; on the side surface of the second baffle 601, there is a second latch 602; at the bottom of the battery box side cover 403, there is a second buckle 603; the second buckle 603 is clamped between adjacent second latches 602.

[0062] The battery box side cover 403 is connected to one side of the end face of the high-voltage battery box 4 through the second hinge 6, thereby enabling the battery box side cover 403 to rotate flexibly on the high-voltage battery box 4; the second baffle 601 is arranged on the side of the battery box side cover 403 away from the second hinge 6; on the side surface of the second baffle 601, there are two second latches 602; there is a first slot between the two second latches 602, and the second buckle 603 is clamped in the first slot, thereby realizing the fixed connection of the battery box side cover 403 on the high-voltage battery box 4.

[0063] There is a first side fixing plate 7 between adjacent high-voltage battery boxes 4; there is a second side fixing plate 701 between the high-voltage battery box 4 and the high-voltage electrical connection box 3;

[0064] On the side of the high-voltage electrical connection box 3 away from the high-voltage battery box 4, there is a threaded hole 306; on the box cover 2, there is a connecting bolt; the connecting bolt is connected in the threaded hole 306.

[0065] Both the first side fixing plate 7 and the second side fixing plate 701 are square plates and are provided with screw holes; fixing bolts are connected in the screw holes and pass through the screw holes to be respectively connected to the high-voltage battery box 4 and the high-voltage electrical connection box 3; thereby realizing the fixed connection between the high-voltage electrical connection box 3 and the high-voltage battery box 4; the high-voltage battery box 4 is fixedly connected to the high-voltage battery box 4; the connecting bolt passes through the box cover 2 and is connected in the threaded hole 306, pressing the box cover 2 against the side surface of the high-voltage electrical connection box 3, thereby realizing the stable connection between the box cover 2 and the high-voltage electrical connection box 3.

[0066] Looseness-proof screws 8 are provided on both the side cover 403 of the battery box and the side cover 301 of the junction box; handles 801 are provided on the top surfaces of the high-voltage electrical junction box 3 and the high-voltage battery box 4; an indicator light 802 is provided on the high-voltage electrical junction box 3; waterproof cable glands are provided on the DC terminal 5, the first positive and negative communication integrated terminal 503, and the second positive and negative communication integrated terminal 404.

[0067] The waterproof cable gland can ensure the waterproof performance of the connection under various environmental conditions; effectively prevent moisture, humidity, and other liquids from entering the interior of the equipment, thereby protecting the electrical equipment from moisture and corrosion.

[0068] The specific working process of the present utility model is as follows:

[0069] First, install the fixed base 1, then stack the high-voltage battery box 4 in sequence, and then stack the high-voltage electrical junction box 3; connect the mounting bracket 201; finally, cover the box cover 2, open the side cover 301 of the junction box and the side cover 403 of the battery box, perform electrical and communication connections, after installing the connection cable post 405, open the DC circuit breaker 504, and finally press the start switch 501 to start running.

[0070] The present utility model has been described exemplarily in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present utility model; or without improvement, the above concept and technical solution of the present utility model are directly applied to other occasions, they are all within the protection scope of the present utility model.

Claims

1. A household high-voltage energy storage device, characterized in that: It includes a base (1) and a box cover (2); a high-voltage electrical junction box (3) and a high-voltage battery box (4) are respectively arranged between the base (1) and the box cover (2); an installation bracket (201) is arranged between the box cover (2) and the high-voltage electrical junction box (3); a first waterproof structure is arranged on the high-voltage electrical junction box (3); a second waterproof structure is arranged on the high-voltage battery box (4); the high-voltage electrical junction box (3) is connected to the high-voltage battery box (4).

2. The household high-voltage energy storage device according to claim 1, characterized in that: The high-voltage battery box (4) is respectively connected to the base (1) and the high-voltage electrical junction box (3); the box cover (2) is arranged on the side of the high-voltage electrical junction box (3) away from the high-voltage battery box (4).

3. The household high-voltage energy storage device according to claim 2, characterized in that: A first positioning structure is arranged between adjacent high-voltage battery boxes (4); a second positioning structure is arranged between the high-voltage battery box (4) and the base (1); a third connection structure is arranged between the high-voltage battery box (4) and the high-voltage electrical junction box (3).

4. A household high-voltage energy storage device according to claim 3, characterized in that: The first positioning structure includes a first positioning pin (401) and a first positioning hole that mates with the first positioning pin (401); the first positioning pin (401) and the first positioning hole are respectively arranged on the top and bottom of the high-voltage battery box (4). The second positioning structure includes a second positioning pin (402) and a second positioning hole that mates with the second positioning pin (402); the second positioning pin (402) is arranged on the top surface of the base (1); the second positioning hole is arranged on the side of the high-voltage battery box (4) close to the base (1). The third connection structure includes a third positioning pin (101) and a third positioning hole that mates with the third positioning pin (101); the third positioning hole is arranged on the bottom surface of the high-voltage electrical junction box (3); the third positioning pin (101) is arranged on the side of the high-voltage battery box (4) close to the high-voltage electrical junction box (3).

5. A household high-voltage energy storage device according to any one of claims 2-4, characterized in that: The first waterproof structure includes a junction box side cover (301); the junction box side cover (301) is connected to the end of the high-voltage electrical junction box (3); a DC terminal (5), a start switch (501), an RJ45 communication terminal (502), a first positive and negative communication integrated terminal (503), and a DC circuit breaker (504) are respectively arranged on the end surface of the high-voltage electrical junction box (3) connected to the junction box side cover (301).

6. A household high-voltage energy storage device according to claim 5, characterized in that: A first hinge (302) is arranged on one side of the end surface of the high-voltage electrical junction box (3), and the first hinge (302) is connected to the junction box side cover (301); a first baffle (303) is arranged on the other side of the end surface of the high-voltage electrical junction box (3); a first clamping block (304) is arranged on the side surface of the first baffle (303); a first buckle (305) is arranged on the bottom surface of the junction box side cover (301); the first buckle (305) is clamped between adjacent first clamping blocks (304).

7. The household high-voltage energy storage device according to claim 6, wherein: The second waterproof structure includes a battery box side cover (403); the battery box side cover (403) is provided at the end of the high-voltage battery box (4); a second positive and negative communication integrated terminal (404) is provided on the end face of the high-voltage battery box (4) connected to the battery box side cover (403); a connection cable post (405) is connected between the second positive and negative communication integrated terminal (404) and the first positive and negative communication integrated terminal (503).

8. A household high-voltage energy storage device according to claim 7, characterized in that: A second hinge (6) is provided on one side of the end of the high-voltage battery box (4); the second hinge (6) is connected to the battery box side cover (403); a second baffle (601) is provided on the other side of the end of the high-voltage battery box (4); a second latch (602) is provided on the side face of the second baffle (601); a second buckle (603) is provided at the bottom of the battery box side cover (403); the second buckle (603) is clamped between adjacent second latches (602).

9. A household high-voltage energy storage device according to any one of claims 7-8, characterized in that: A first side fixing plate (7) is provided between adjacent high-voltage battery boxes (4); a second side fixing plate (701) is provided between the high-voltage battery box (4) and the high-voltage electrical connection box (3). A threaded hole (306) is provided on the side of the high-voltage electrical connection box (3) away from the high-voltage battery box (4); a connecting bolt is provided on the box cover (2); the connecting bolt is connected in the threaded hole (306).

10. A household high-voltage energy storage device according to claim 9, characterized in that: Loose non-detachable screws (8) are provided on both the battery box side cover (403) and the connection box side cover (301); handles (801) are provided on the top surfaces of both the high-voltage electrical connection box (3) and the high-voltage battery box (4); an indicator light (802) is provided on the high-voltage electrical connection box (3); waterproof gland heads are provided on the DC terminal (5), the first positive and negative communication integrated terminal (503), and the second positive and negative communication integrated terminal (404).

Images