An electrical box
By using a mechanical pressure drain valve and a water collection tank in the electrical box, the problem of foreign objects entering the drain hole was solved, ensuring the normal operation of electronic components inside the electrical box and avoiding the impact of foreign objects entering.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUNGROW POWER SUPPLY CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-28
AI Technical Summary
The existing electrical box's drainage hole design allows external dust, flying insects, and other foreign objects to easily enter, affecting the normal operation of electronic components inside the electrical box.
It adopts a mechanical pressure drain valve, with the water collection tank connected to the drain valve. When the liquid in the water collection tank reaches the opening pressure, it will automatically drain and automatically close when the pressure drops, preventing foreign objects from entering.
It effectively prevents foreign objects from entering the electrical box through the drain hole, ensuring the normal operation of electronic components. Its simple structure avoids problems such as sensor detection delay and damage.
Smart Images
Figure CN224570716U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of electrical equipment, and more specifically, to an electrical box. Background Technology
[0002] During actual operation, electrical boxes inevitably experience problems such as water ingress or leakage from internal equipment. While commonly used drainage methods can effectively remove liquids, their design allows dust, insects, and other foreign objects to easily enter the box, potentially affecting the normal operation of internal electronic components.
[0003] In summary, how to solve the problem of foreign objects easily entering the electrical box through the drain hole and affecting the normal operation of related electronic components inside the electrical box has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0004] In view of this, this application provides an electrical box to solve the problem that foreign objects can easily enter the electrical box through the drain hole and affect the normal operation of related electronic components inside the electrical box.
[0005] To achieve the above objectives, this application provides the following technical solution:
[0006] An electrical box, comprising:
[0007] The chassis body has a water collection tank on the bottom wall inside the chassis body, and the water collection tank has at least one drain hole;
[0008] At least one drain valve is provided on the outer bottom of the chassis body and communicates with the drain hole;
[0009] The drain valve is a mechanical pressure drain valve.
[0010] In some embodiments of this application, the drain valve includes a pipe body and a sliding rod. The pipe body has an inlet and an outlet. The inlet is connected to the drain hole. The sliding rod is slidably disposed in the inner cavity of the pipe body. When the sliding rod is in a first sliding position, the inlet and the outlet are not connected. When the sliding rod is in a second sliding position, the inlet and the outlet are connected.
[0011] In some embodiments of this application, the drain valve further includes an elastic element disposed in the inner cavity of the pipe body and used to provide a preset elastic force to the sliding rod to maintain it in a first sliding position.
[0012] In some embodiments of this application, an adjusting rod is provided at the end of the pipe body away from the water inlet. The adjusting rod is threaded into the inner cavity of the pipe body, and the elastic element is disposed between the adjusting rod and the sliding rod.
[0013] In some embodiments of this application, an adjustment knob is also provided at the end of the adjustment rod away from the tube body.
[0014] In some embodiments of this application, the drain valve further includes a drain pipe disposed at the outlet.
[0015] In some embodiments of this application, the water collection tank is located at the edge of the bottom wall.
[0016] In some embodiments of this application, the water collection tank includes a first water tank and a second water tank, the first water tank and the second water tank are arranged opposite to each other on both sides of the bottom wall, and both the first water tank and the second water tank are provided with at least one of the drainage holes;
[0017] Wherein, the first direction and the second direction are perpendicular to each other.
[0018] In some embodiments of this application, the bottom wall has a slope that directs water into the collection trough.
[0019] In some embodiments of this application, an mounting plate is provided on the inner side wall of the main body of the chassis, corresponding to the position above the water collection tank, and a load-bearing support is provided below the mounting plate.
[0020] In some embodiments of this application, the electrical box further includes a support base disposed at the bottom of the chassis body, and the drain valve is located on the periphery of the support base.
[0021] In some embodiments of this application, the electrical box is an energy storage box.
[0022] To address the problem that foreign objects can easily enter the electrical box through the drain hole and affect the normal operation of related electronic components inside the electrical box, the electrical box provided in this application includes a chassis body and at least one drain valve. A water collection tank is provided on the bottom wall inside the chassis body, and the water collection tank is provided with at least one drain hole. The drain valve is located on the bottom outside of the chassis body and communicates with the drain hole. The drain valve is a mechanical pressure drain valve. In practical applications, when liquids such as water or leakage occur inside the electrical box, which are detrimental to the normal operation of the electronic components, these liquids can be collected by a water collection tank located on the bottom wall inside the main body of the box. The water collection tank has a drain hole, and a drain valve is located on the bottom outer side of the main body and connected to the drain hole. This drain valve is a mechanical pressure drain valve. When the pressure exerted by the liquid in the collection tank reaches the opening pressure of the mechanical pressure drain valve, the corresponding mechanical structure inside the valve automatically opens, draining the liquid. As the liquid drains, the pressure exerted on the mechanical pressure drain valve gradually decreases. When the pressure falls below the opening pressure of the mechanical pressure drain valve, the corresponding mechanical structure inside the valve automatically closes, sealing the drain hole. This effectively prevents foreign objects from entering the electrical box through the drain hole and affecting the normal operation of the electronic components.
[0023] The technical features mentioned above, those to be mentioned below, and those shown individually in the accompanying drawings can be combined arbitrarily, provided that the combined technical features are not contradictory. All feasible combinations of features are the technical content explicitly described herein. Any one of the multiple sub-features contained in the same statement can be applied independently, without necessarily being applied together with other sub-features. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 An isometric structural schematic diagram of an electrical box provided in an embodiment of this application from one perspective;
[0026] Figure 2 An isometric structural schematic diagram of the electrical box provided in an embodiment of this application from another perspective;
[0027] Figure 3This is a structural schematic diagram of the corresponding bottom wall inside the electrical box provided in an embodiment of this application;
[0028] Figure 4 This is a schematic diagram of the split structure of the drain valve provided in the embodiments of this application;
[0029] Figure 5 This is a cross-sectional view of the drain valve provided in an embodiment of this application.
[0030] in, Figures 1-5 middle:
[0031] 1-Chassis body;
[0032] 10-Bottom wall;
[0033] 101-Water collection tank;
[0034] 1011-First sink;
[0035] 1012-Second sink;
[0036] 102 - Drain hole;
[0037] 11-Mounting plate;
[0038] 110 - Mounting hole;
[0039] 12-Load-bearing support components;
[0040] 13-Box door;
[0041] 14-Handle;
[0042] 15 - Mounting bracket;
[0043] 2-Drain valve;
[0044] 21-tube body;
[0045] 211 - Inlet;
[0046] 212 - Outlet;
[0047] 22-Sliding rod;
[0048] 220 - Sealing ring;
[0049] 23-Elastic element;
[0050] 24 - Adjusting rod;
[0051] 241 - Adjustment knob;
[0052] 25 - Drain pipe;
[0053] 3-Support base. Detailed Implementation
[0054] The core of this application is to provide an electrical box to solve the problem that foreign objects can easily enter the electrical box through the drain hole and affect the normal operation of related electronic components inside the electrical box.
[0055] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0056] During actual operation, electrical control boxes inevitably encounter problems such as water ingress or leakage from internal equipment. For example, to improve heat dissipation efficiency, electrical control boxes often employ liquid cooling. Liquid cooling requires piping connections, and leaks are unavoidable at these connections and with the liquid cooling unit. Furthermore, liquid inevitably flows into the electrical control box during maintenance and pipe replacement. Additionally, gaps may exist inside the electrical control box due to poor welding, allowing external liquids (such as rainwater) to easily enter and potentially cause electrical short circuits.
[0057] To ensure timely drainage of water or leaks to the outside of the electrical box and prevent interference with the normal operation of electronic components inside, the commonly used drainage method involves creating drainage holes on the bottom wall of the electrical box. While this method effectively removes liquids, the design of these drainage holes allows dust, insects, and other foreign objects to easily enter the electrical box, potentially affecting the normal operation of the electronic components.
[0058] Based on this, this application provides an electrical box to solve the problem that foreign objects can easily enter the electrical box through the drain hole and affect the normal operation of related electronic components inside the electrical box.
[0059] Specifically, refer to Figure 1 and Figure 2 As shown, where, Figure 1 This diagram shows an axonometric view of the electrical box from above. Figure 2 The diagram illustrates an isometric view of the electrical enclosure from a lower perspective. The enclosure includes a main body 1 and a drain valve 2. The main body 1 can be assembled from multiple plate-like structures, and its interior has cavities for housing related electronic components. Its external shape can be, but is not limited to, a cuboid or cube structure. The drain valve 2 is located on the outer bottom of the main body 1 and is configured as a mechanical pressure drain valve. Its main function is to drain water or other undesirable liquids from inside the main body 1.
[0060] Reference Figure 3 In order to ensure that water or other unfavorable liquids inside the chassis body 1 can be drained more smoothly, a water collection tank 101 is provided on the bottom wall 10 inside the chassis body 1 provided in this application. The main function of the water collection tank 101 is to collect liquids (such as water or other unfavorable liquids) flowing to the bottom wall 10. The specific shape of the water collection tank 101 is not limited. The water collection tank 101 is provided with at least one drain hole 102. The number of drain holes 102 is not specifically limited. Specifically, it can be one or more. The drain valve 2 is connected to the drain hole 102.
[0061] In practical applications, when liquids such as water ingress or leakage occur inside the electrical box, which are detrimental to the normal operation of the electronic components inside, these harmful liquids can be collected by a water collection tank 101 located on the bottom wall 10 inside the main body 1 of the enclosure. The water collection tank 101 has at least one drain hole 102. A drain valve 2 is located on the outer bottom of the main body 1 and is connected to the drain hole 102. The drain valve 2 is a mechanical pressure drain valve. When the pressure exerted by the harmful liquid in the water collection tank 101 reaches the opening pressure of the mechanical pressure drain valve, the corresponding mechanical structure inside the valve automatically opens, thus draining the harmful liquid. As the harmful liquid is drained, the pressure exerted on the mechanical pressure drain valve gradually decreases. When the pressure is lower than the opening pressure of the mechanical pressure drain valve, the corresponding mechanical structure inside the valve automatically closes, and the drain hole 102 is sealed. This effectively prevents foreign objects from entering the electrical box through the drain hole 102 and affecting the normal operation of the electronic components inside.
[0062] For electrical boxes, refer again Figure 1 and 2 As shown, in order to facilitate the installation of related components inside the electrical box, or to facilitate the maintenance of related components inside the electrical box, the electrical box is generally designed with a door 13. The door 13 may be designed with a handle 14, and the handle 14 may be fixed to the door 13 by a mounting base 15, but is not limited to.
[0063] Another point worth mentioning is that the working principle of a mechanical pressure drain valve is mainly to automatically drain the liquid by sensing changes in the liquid pressure inside the valve body through an internal mechanical structure. When the liquid pressure or level reaches a preset threshold, the internal mechanism (such as a piston or diaphragm) is driven by the pressure to displace, causing the valve to open and discharge the medium; when the pressure or level decreases, the mechanism resets and the valve closes.
[0064] For example, refer to Figure 4 and Figure 5The aforementioned drain valve 2 is a mechanical pressure drain valve, which specifically includes a pipe body 21 and a sliding rod 22. The pipe body 21 has an inlet 211 and an outlet 212. The inlet 211 is connected to the drain hole 102, and the outlet 212 is connected to the external environment. The sliding rod 22 is slidably disposed in the inner cavity of the pipe body 21. The sliding fit here generally needs to be designed as a sealed sliding. The sliding rod 22 can be understood as a piston component disposed in the inner cavity of the pipe body 21. The sliding fit between the sliding rod 22 and the inner cavity of the pipe body 21 can be designed as a sealed sliding. Specifically, the sealing method can be that a sealing ring 220 is provided on the sliding rod 22, and the sealing ring 220 seals the inner cavity of the pipe body 21. It has a first sliding position and a second sliding position. When the sliding rod 22 is in the first sliding position, the inlet 211 and the outlet 212 are not connected. When the sliding rod 22 is in the second sliding position, the inlet 211 and the outlet 212 are connected. By designing the drain valve 2 with the aforementioned structure, it not only achieves automatic drainage via mechanical means but also boasts a relatively simple structure and is easy to manufacture. Compared to sensor-based control of the drain valve 2's opening and closing, this eliminates the issues of delayed detection, detection errors, and sensor damage that could prevent the drain valve 2 from opening.
[0065] Further implementation plans will continue to refer to Figure 4 and Figure 5 In order to enable the sliding rod 22 of the drain valve 2 to automatically return to the first sliding position when there is no pressure or insufficient pressure, the drain valve 2 may also have an elastic element 23. The elastic element 23 can drive the sliding rod 22 to automatically return to the first sliding position when there is no pressure or insufficient pressure.
[0066] Specifically, refer to Figure 4 and Figure 5 The elastic element 23 is disposed in the inner cavity of the tube body 21 and is used to provide a preset elastic force to the sliding rod 22 to maintain it in the first sliding position. The elastic element 23 may be, but is not limited to, a spring. For example, the elastic element 23 may be a compression spring disposed at the bottom of the sliding rod 22 or a tension spring disposed at the top of the sliding rod 22.
[0067] It is understood that the above-mentioned elastic element 23 as a position restoration element is merely an example of the embodiment of this application. In actual application, it can also be designed into other structural forms of position restoration elements, and no specific limitation is made here.
[0068] In a further implementation plan, refer to Figure 4 and Figure 5As shown, an adjusting rod 24 can also be provided at the end of the pipe body 21 away from the water inlet 211. The adjusting rod 24 is threaded into the inner cavity of the pipe body 21. An elastic element 23 is disposed between the adjusting rod 24 and the sliding rod 22. By rotating the adjusting rod 24, the relative distance between the adjusting rod 24 and the sliding rod 22 can be changed, thereby changing the elastic force value of the elastic element 23 (such as a spring) located between them, that is, changing the preset elastic force provided by the elastic element 23 to the sliding rod 22 to maintain it in the first sliding position. By designing this structure, the preset elastic force can be adjusted as needed, thereby achieving drainage control of different amounts of water (the amount of water here is not limited to water, but can also be other unfavorable liquids), and automatic drainage can be performed according to the water level inside the energy storage container.
[0069] In a further implementation plan, refer to Figure 4 As shown, an adjustment knob 241 is also provided at the end of the adjustment rod 24 away from the tube body 21. The adjustment knob 241 is designed to make the rotation operation of the adjustment rod 24 more convenient.
[0070] In some other specific implementation schemes, refer to Figure 4 and Figure 5 As shown, the aforementioned drain valve 2 may further include a drain pipe 25, which is located at the outlet 212. Its main function is to discharge the medium flowing from the outlet 212 according to the desired direction. Specifically, the drain pipe 25 can be an integral part of the pipe body 21, or it can be a separate, detachable structure; no specific limitation is made here. Furthermore, the drain pipe 25 can be designed to extend away from the electrical box, so that the discharged medium does not affect the electrical box as much as possible. Alternatively, the drain pipe 25 can be designed to have a certain length to guide the discharged medium to a designated location as needed. During application, the configuration can be selected according to actual needs; no further specific limitations are made here.
[0071] In some other specific implementation schemes, refer to Figure 3 As shown, the aforementioned water collection tank 101 can be specifically located at the edge of the bottom wall 10. Designing it at the edge of the bottom wall 10 facilitates the installation and maintenance of the drain valve 2. It is understood that designing the water collection tank 101 at the edge of the bottom wall 10 is merely an example of this embodiment; in actual applications, it can be designed at other locations, as long as it can collect harmful liquids. No further specific limitations are made here.
[0072] In a further implementation plan, refer to Figure 3As shown, the aforementioned water collection tank 101 may specifically include a first water tank 1011 and a second water tank 1012, which are arranged opposite to each other on both sides of the bottom wall 10. In some specific embodiments, the first water tank 1011 and the second water tank 1012 are arranged opposite to each other in a first direction, which may specifically refer to the width direction of the electrical box. In other specific embodiments, the first water tank 1011 and the second water tank 1012 are arranged opposite to each other in a second direction, which may specifically refer to the length direction of the electrical box. Although this embodiment does not provide corresponding drawings, it is based on... Figure 3 The arrangement of the first and second water tanks, which are arranged opposite each other in the first direction, should be understandable to those skilled in the art.
[0073] Both the first water tank 1011 and the second water tank 1012 are provided with at least one drain hole 102. That is, the first water tank 1011 is provided with at least one drain hole 102, and the second water tank 1012 is provided with at least one drain hole 102. By designing this structure, the water collection tank 101 and the drain holes 102 designed on it can be arranged on both opposite sides of the electrical box, and the corresponding drain valves 2 are also arranged on both opposite sides of the electrical box, ensuring that both opposite sides of the electrical box have the ability to drain harmful liquids, which helps to improve the drainage effect. For example, the drain holes 102 designed on the first water tank 1011 can be symmetrically distributed with the drain holes 102 designed on the second water tank 1012, which can improve the consistency of drainage on both sides.
[0074] In other specific embodiments, the bottom wall 10 may have a slope that leads to the water collection tank 101, or in other words, the bottom wall 10 may be specifically constructed as a slope structure that leads to the water collection tank 101. By designing the slope structure, it is more conducive to the water collection tank 101 collecting undesirable liquids. For example, when the water collection tank 101 includes a first water tank 1011 and a second water tank 1012 arranged opposite to each other along a first direction, the slope structure may be specifically designed such that the bottom wall 10 gradually slopes downward from the middle to both sides in the first direction. Specifically, it may be a straight slope or a curved slope, without specific limitations.
[0075] In some specific implementation plans, refer to Figure 3As shown, a mounting plate 11 can be provided on the inner wall of the main chassis 1 above the water collection tank 101, and a load-bearing support 12 is provided below the mounting plate 11. The main function of the mounting plate 11 is to install and fix related electronic devices or related mounting structures of electronic devices. Specifically, mounting holes 110 can be designed on the mounting plate 11, and related devices can be installed on the mounting plate 11 by fasteners. The main function of the load-bearing support 12 is to strengthen the support of the mounting plate 11 to improve the support capacity of the mounting plate 11. The shape of the load-bearing support 12 is not limited, for example, it can be designed as a triangular support. The mounting plate 11 and the main chassis 1, the load-bearing support 12 and the main chassis 1, and the mounting plate 11 and the load-bearing support 12 can be connected and fixed by welding, but not limited to welding. By designing the mounting plate 11, the electronic devices can be kept at a certain distance from the water collection tank 101 as much as possible, reducing the impact of water or leakage on the normal operation of the electronic devices.
[0076] In some specific implementation plans, refer to Figure 1 and Figure 2 The electrical box also includes a support base 3 located at the bottom of the main body 1 of the chassis, combined with... Figure 3 As shown, the drain valve 2 is located on the bottom wall of the main body 1 and on the periphery of the support base 3. By designing it in this way, the support base 3 can maintain a certain distance between the main body 1 and the installation site. This provides a certain installation space for the drain valve 2, allowing it to be installed directly below the bottom wall of the water collection tank 101, for example, by directly connecting it to the drain hole 102. This eliminates the need for intermediate pipes or flow channels, making the structure simpler.
[0077] It is understandable that the above-mentioned design of the drain valve 2 on the bottom wall of the chassis body 1 is merely an example of the embodiment of this application. In actual application, it can also be designed on the side wall of the chassis body 1 near the bottom, and the drain hole 102 is designed on the side wall of the water collection tank 101 near the bottom, and corresponds to the inlet of the drain valve 2.
[0078] For example, the drain valve 2 and drain hole 102 can be designed to be connected in a one-to-one correspondence, or one drain valve 2 can be designed to be connected to at least two drain holes 102. In this case, the drain valve 2 and drain hole 102 can be connected through a pipe or a designed flow channel. In actual application, the configuration can be selected according to actual needs, and no more specific limitations are made here.
[0079] For example, the aforementioned electrical box may be, but is not limited to, an energy storage box, or other electrical boxes that have the need to drain undesirable liquids.
[0080] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0081] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "a," and / or "the" are not specifically singular and may include the plural. Generally, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. An element defined by the phrase "comprising an..." does not exclude the presence of other identical elements in the process, method, product, or apparatus that includes the element.
[0082] In the description of the embodiments of this application, unless otherwise stated, " / " means "or", for example, A / B can mean A or B; "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more.
[0083] It should also be noted that in the description of the embodiments of this application, the terms "first" and "second" are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.
[0084] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.
Claims
1. An electrical box, characterized in that, include: The chassis body (1) has a water collection tank (101) on the bottom wall (10) inside the chassis body (1) and at least one drain hole (102). At least one drain valve (2) is provided on the outer bottom of the chassis body (1) and communicates with the drain hole (102); The drain valve (2) is a mechanical pressure drain valve.
2. The electrical box as described in claim 1, characterized in that, The drain valve (2) includes a pipe body (21) and a sliding rod (22). The pipe body (21) has an inlet (211) and an outlet (212). The inlet (211) is connected to the drain hole (102). The sliding rod (22) is slidably disposed in the inner cavity of the pipe body (21). When the sliding rod (22) is in the first sliding position, the inlet (211) and the outlet (212) are not connected. When the sliding rod (22) is in the second sliding position, the inlet (211) and the outlet (212) are connected.
3. The electrical box as described in claim 2, characterized in that, The drain valve (2) also includes an elastic element (23), which is disposed in the inner cavity of the pipe body (21) and is used to provide a preset elastic force to the sliding rod (22) to maintain it in the first sliding position.
4. The electrical box as described in claim 3, characterized in that, An adjusting rod (24) is provided at the end of the pipe body (21) away from the water inlet (211). The adjusting rod (24) is threaded into the inner cavity of the pipe body (21). The elastic element (23) is provided between the adjusting rod (24) and the sliding rod (22).
5. The electrical box as described in claim 4, characterized in that, An adjustment knob (241) is also provided at the end of the adjustment rod (24) away from the tube body (21).
6. The electrical box as described in any one of claims 2-5, characterized in that, The drain valve (2) also includes a drain pipe (25) located at the outlet (212).
7. The electrical box as described in any one of claims 1-5, characterized in that, The water collection tank (101) is located at the edge of the bottom wall (10).
8. The electrical box as described in claim 7, characterized in that, The water collection tank (101) includes a first water tank (1011) and a second water tank (1012). The first water tank (1011) and the second water tank (1012) are arranged opposite to each other on both sides of the bottom wall (10), and both the first water tank (1011) and the second water tank (1012) are provided with at least one of the drainage holes (102).
9. The electrical box as described in claim 7, characterized in that, The bottom wall (10) has a slope that directs water into the collection tank (101).
10. The electrical box as described in claim 7, characterized in that, An installation plate (11) is provided on the inner side wall of the main body of the chassis (1) above the water collection tank (101), and a load-bearing support (12) is provided below the installation plate (11).
11. The electrical box as described in any one of claims 1-5, characterized in that, The electrical box also includes a support base (3) located at the bottom of the main body (1) of the chassis, and the drain valve (2) is located on the periphery of the support base (3).
12. The electrical box as described in any one of claims 1-5, characterized in that, The electrical box is an energy storage box.