Compact high-voltage box

Abstract

The utility model discloses a compact high-voltage box, which comprises an outer box and further comprises a device assembly arranged in the outer box, and the device assembly comprises an electromagnetic valve support, a plurality of groups of component assemblies and a plurality of circuit breaker supports. The electromagnetic valve bracket is integrally arranged and is close to one side in the outer box, and the electromagnetic valve bracket is used for mounting an electromagnetic valve; the multiple sets of component assemblies are arranged adjacent to the electromagnetic valve support, each component assembly comprises multiple components, and the multiple components are arranged in rows; the plurality of circuit breaker supports are arranged close to the other side of the component assembly, the plurality of circuit breaker supports are arranged in parallel, and each circuit breaker support is used for installing a circuit breaker; the limit value of the insulation distance of the components, the electromagnetic valve and the circuit breaker is X, the distance between the adjacent components is Z, and Z is larger than or equal to X and smaller than or equal to 1.1 X. The distance between the components is minimized while the safety distance between the components is achieved, and therefore space is saved to the maximum extent.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage distribution box technology, and more specifically, to a compact high-voltage box. Background Technology

[0002] A high-voltage distribution box is a device that integrates high and low voltage connector interfaces, copper busbars, high-voltage fuses, high-voltage contactors, and other components.

[0003] In recent years, the new energy storage industry has developed rapidly. Energy storage battery compartments typically operate under high-power full-compartment power, with high voltage and high current, which poses a huge challenge to the design of high-voltage power distribution systems and the layout of high-voltage zero modules. Considering the complexity of the overall compartment space, overall structure and cost, the industry has widely adopted a centralized high-voltage electrical system architecture for power distribution. The high-voltage power supply directly enters the high-voltage distribution box and is then distributed to the high-voltage electrical products of the system according to the needs of the system.

[0004] As an indispensable and important component of the battery energy storage system, the high-voltage box can not only control the charging and discharging of the battery system and provide overvoltage and overcurrent protection to ensure the power transmission of the energy storage system, but also detect circuit faults in the entire battery cluster at any time, monitor the temperature of the cells in the entire battery cluster in real time, and control the battery switching.

[0005] The high-voltage box integrates various components. Most existing high-voltage boxes are of the plug-in frame structure, consisting of an outer casing, internal structural components, and related parts. A high-voltage box is connected to multiple battery packs, thus requiring high functionality. At the same time, to increase the single-compartment capacity of the energy storage prefabricated module, the structural volume of the high-voltage box is also required to be large. Currently, most high-voltage boxes are not fully functional and are large in size, resulting in low space utilization. Utility Model Content

[0006] This utility model provides a compact high-voltage box with a reasonable layout of internal components, enabling one high-voltage box to perform the functions of multiple high-voltage boxes, thereby saving space.

[0007] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0008] A compact high-voltage box includes an outer casing and a component assembly disposed within the outer casing, the component assembly comprising:

[0009] A solenoid valve bracket, which is integrally formed and located on one side close to the inner side of the outer casing, is used to mount a solenoid valve.

[0010] Multiple sets of component assemblies are arranged adjacent to the solenoid valve bracket, and each component assembly includes multiple components, which are arranged in a row.

[0011] Multiple circuit breaker brackets are disposed near the other side of the component assembly, and the multiple circuit breaker brackets are disposed side by side, each of the circuit breaker brackets being used to mount a circuit breaker;

[0012] The limit value of the insulation distance between the components, solenoid valves and circuit breakers is X, and the distance between adjacent components is Z, and X≤Z≤1.1X.

[0013] In this scheme, in order to save space, the time interval Z between components, solenoid valves and circuit breakers in different directions (up, down, left and right) is X≤Z≤1.1X. This achieves a safe distance between each component while minimizing the distance between them, thereby maximizing the saving of space occupied by components such as components, solenoid valves and circuit breakers.

[0014] As a further improvement, a base plate is installed at the bottom of the outer enclosure, and the solenoid valve bracket, component assembly, and circuit breaker bracket are detachably mounted on the base plate. By mounting the solenoid valve bracket, component assembly, and circuit breaker bracket on the base plate, in some cases, components such as the solenoid valve bracket, component assembly, circuit breaker bracket, solenoid valve, and circuit breaker can be pre-assembled outside the outer enclosure, facilitating the assembly of the high-voltage box. Furthermore, when a fault occurs in the high-voltage box, all components can be removed as a whole through the base plate for fault detection.

[0015] As a further improvement, a panel assembly is provided on the outside of the outer casing, and the panel assembly is connected to the multiple sets of component assemblies.

[0016] As a further improvement, the panel assembly includes a first docking plug and a second docking plug, the first docking plug being used to connect to a control circuit and the second docking plug being used to connect to a power circuit.

[0017] As a further improvement, insulating plates are installed on both sides of the multiple circuit breaker brackets and on the inner wall of the outer casing. Some circuits placed there are experiencing leakage current between themselves and the outer casing.

[0018] As a further improvement, several heat dissipation holes are provided on the side of the outer casing near the solenoid valve bracket to facilitate timely heat dissipation from the interior of the casing.

[0019] As a further improvement, an arc-shaped cover is provided on the upper side of each of the heat dissipation holes, and the cover is connected to the outer side of the outer casing. The arc-shaped cover on the upper side of the heat dissipation hole serves two purposes: firstly, the arc shape guides heat and enhances the heat dissipation effect; secondly, the cover being located on the upper side of the heat dissipation hole prevents debris from entering the heat dissipation hole.

[0020] As a further improvement, the heat dissipation holes are angled, and the end of the heat dissipation hole closer to the outside of the outer casing is closer to the bottom of the outer casing than the end closer to the inside. This angled arrangement allows any debris located inside the holes to fall off automatically, thus preventing blockage and ensuring effective heat dissipation.

[0021] Other technical problems that the compact high-voltage box of this utility model can solve, other technical features contained in the technical solution, and the advantages brought by these technical features will be further explained in detail with reference to the accompanying drawings. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the high-voltage box structure;

[0023] Figure 2 This is a top view of the high-voltage box structure.

[0024] Figure 3 This is a schematic diagram of the exploded structure of the high-pressure box;

[0025] Figure 4 A schematic diagram showing the ventilation holes on the outer casing.

[0026] Label Explanation:

[0027] 1. Outer casing; 11. Heat dissipation holes; 2. Component assembly; 21. Base plate; 22. Solenoid valve bracket; 23. Circuit breaker bracket; 24. Component assembly; 3. Panel assembly; 31. First mating plug; 32. Second mating plug; 4. Cover; 5. Insulation board. Detailed Implementation

[0028] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0029] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0030] Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and not intended to limit the scope of implementation. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this utility model. In addition to indicating orientation or positional relationships, some of the aforementioned terms may also have other meanings; for example, the term "upper" may, in certain circumstances, indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate for the embodiments of this application described herein.

[0032] Combination Figure 1 , Figure 2 and Figure 3 As shown, this embodiment provides a compact high-voltage box, including an outer box 1, and a component assembly 2 disposed inside the outer box 1. The component assembly 2 includes a solenoid valve bracket 22, multiple sets of component assemblies 24, and multiple circuit breaker brackets 23.

[0033] The solenoid valve bracket 22 is an integral part of the outer casing 1 and is located on the side closest to the inside of the outer casing 1. The solenoid valve is mounted on the solenoid valve bracket 22. It should be noted that when the solenoid valve bracket 22 is located on the side closest to the inside of the outer casing 1, there is still a certain gap between the solenoid valve bracket 22 and the inside of the outer casing 1, which allows for easier heat flow and timely heat dissipation.

[0034] Multiple component assemblies 24 are arranged adjacent to the solenoid valve bracket 22. Each component assembly 24 includes multiple components arranged in a row. The components can be the same or different. The specific components can be selected according to the design of the high-voltage box. For example, the components can be fuses, BMS, DC contactors, and resistors.

[0035] Multiple circuit breaker brackets 23 are disposed near the other side of the component assembly 24, and the multiple circuit breaker brackets 23 are arranged side by side. Each circuit breaker bracket 23 is used to mount a circuit breaker.

[0036] The limit value of the insulation distance of the components, solenoid valves and circuit breakers mentioned above is X, and the distance between adjacent components is Z, and X≤Z≤1.1X.

[0037] This solution uses a compact three-in-one high-voltage box as an example. In the three-in-one high-voltage box, three solenoid valves are mounted on the solenoid valve bracket 22, three sets of identical component assemblies 24 are arranged, and three circuit breakers are mounted on the circuit breaker bracket 23. To save space, the time interval Z between adjacent components, solenoid valves, and circuit breakers in different directions (up, down, left, right) is X≤Z≤1.1X (combined with...). Figure 2 (As explained in the view direction), while achieving safe spacing between various components, the spacing between them is minimized, thereby maximizing the saving of space occupied by components such as solenoid valves and circuit breakers.

[0038] For example, the three-in-one high-voltage box in this solution can perform the functions of three high-voltage boxes, such as current collection, monitoring, control, communication, and protection of three battery clusters. The high-voltage box in this solution has a rational internal layout, resulting in higher space utilization. By integrating three high-voltage boxes into one, the volume of this single high-voltage box is less than half the volume of the three individual boxes, significantly increasing space utilization.

[0039] As a further improvement, a base plate 21 is installed at the bottom of the outer casing 1, and the solenoid valve bracket 22, component assembly 24, and circuit breaker bracket 23 are detachably mounted on the base plate 21. By mounting the solenoid valve bracket 22, component assembly 24, and circuit breaker bracket 23 on the base plate 21, in some cases, the solenoid valve bracket 22, component assembly 24, circuit breaker bracket 23, solenoid valve, and circuit breaker can be pre-assembled outside the outer casing 1, facilitating the assembly of the high-voltage box. Furthermore, when a fault occurs in the high-voltage box, all components can be removed as a whole through the base plate 21 for fault detection.

[0040] Combination Figure 3 As shown, to connect the internal circuitry of the high-voltage box to the external circuitry, a panel assembly 3 is installed on the outer side of the outer casing 1. The panel assembly 3 is connected to multiple component assemblies 24. The panel assembly 3 includes a first connector 31 and a second connector 32. The first connector 31 is used to connect to the control circuit, and the second connector 32 is used to connect to the power circuit. Specifically, the first connector 31 connects to components with corresponding functions for power supply, communication, and control; the second connector 32 also connects to corresponding components for controlling the operation of components on the power line. Connectors can be plugged into the first connector 31 and the second connector 32, thereby achieving the connection between the internal circuitry of the high-voltage box and the external circuitry.

[0041] Preferably, insulating plates 5 are installed on both sides of the multiple circuit breaker brackets 23 and on the inner wall of the outer casing 1. In this design, since the panel assembly 3 is connected to the component assembly 24 via copper busbars, and the copper busbars pass through the location of the circuit breaker brackets 23, the insulating plates 5 are installed close to the side where the circuit breaker brackets 23 are located. The insulating plates 5 are installed to prevent leakage between the copper busbars and the outer casing 1, thereby improving the safety of the high-voltage box.

[0042] To facilitate heat dissipation, several heat dissipation holes 11 are formed on the side of the outer casing 1 near the solenoid valve bracket 22. The heat dissipation holes 11 can be square or circular, etc. In one case, an arc-shaped cover plate with an opening on the bottom is provided on the upper side of each heat dissipation hole 11, and the cover plate is connected to the outer side of the outer casing 1. Heat inside the outer casing 1 is discharged to the outside through the heat dissipation holes 11 and guided by the cover plate. The cover plate on the upper side of the heat dissipation holes 11 can prevent debris from entering the heat dissipation holes and affecting heat dissipation. In another case, the heat dissipation holes 11 are set at an angle, and the end of the heat dissipation hole 11 closer to the outside of the outer casing 1 is closer to the bottom of the outer casing 1 than the end closer to the inside of the outer casing 1. The angled setting of the heat dissipation holes 11 can cause some debris located in the heat dissipation holes to fall off automatically.

[0043] A cover 4 is installed at the opening of the outer casing 1, so that the high-voltage box cover is a whole.

[0044] The terms “installation,” “setup,” “equipped with,” and “connection” used herein should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0045] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A compact high-voltage box, comprising an outer casing (1), characterized in that, It also includes a component assembly (2) disposed within the outer casing (1), the component assembly (2) comprising: Solenoid valve bracket (22), the solenoid valve bracket (22) is integrally set and is located on one side close to the outer casing (1), the solenoid valve bracket (22) is used to install solenoid valves; Multiple component assemblies (24) are arranged adjacent to the solenoid valve bracket (22). Each component assembly (24) includes multiple components, which are arranged in a row. Multiple circuit breaker brackets (23) are arranged near the other side of the component assembly (24), and the multiple circuit breaker brackets (23) are arranged side by side, each of the circuit breaker brackets (23) is used to install a circuit breaker; The limit value of the insulation distance between the components, solenoid valves and circuit breakers is X, and the distance between adjacent components is Z, and X≤Z≤1.1X.

2. The compact high-voltage box according to claim 1, characterized in that: The bottom of the outer casing (1) is mounted on a base plate (21), and the solenoid valve bracket (22), component assembly (24) and circuit breaker bracket (23) are detachably mounted on the base plate (21).

3. The compact high-voltage box according to claim 1, characterized in that: A panel assembly (3) is provided on the outside of the outer casing (1), and the panel assembly (3) is connected to the multiple sets of component assemblies (24).

4. The compact high-voltage box according to claim 3, characterized in that: The panel assembly (3) includes a first docking plug (31) and a second docking plug (32), the first docking plug (31) being used to connect to the control circuit and the second docking plug (32) being used to connect to the power circuit.

5. The compact high-voltage box according to any one of claims 1-4, characterized in that: Insulating plates (5) are provided on both sides of the plurality of circuit breaker brackets (23) and on the inner side wall of the outer casing (1).

6. The compact high-voltage box according to claim 5, characterized in that: Several heat dissipation holes (11) are provided on the side of the outer casing (1) near the solenoid valve bracket (22).

7. The compact high-voltage box according to claim 6, characterized in that: Each of the heat dissipation holes (11) is provided with an arc-shaped cover plate on its upper side, and the cover plate is connected to the outer side of the outer casing (1).

8. The compact high-voltage box according to claim 6, characterized in that: The heat dissipation hole (11) is inclined, and the end of the heat dissipation hole (11) near the outside of the outer box (1) is closer to the bottom of the outer box (1) than the end near the inside of the outer box (1).

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