Electric control box structure of vertical energy storage liquid cooling air conditioner

Abstract

The utility model relates to the technical field of energy storage liquid cooling air conditioners, and discloses an electric control box structure of a vertical energy storage liquid cooling air conditioner, which comprises a case, an electric control box arranged in the case, a switching power supply arranged in the electric control box, a control board, a driving board, a miniature circuit breaker and an alternating current contactor, the electric control box is provided with an upper opening, the upper opening is in butt joint with the top face of the machine box, cable via holes are formed in the electric control box, and each cable via hole is provided with a sealing waterproof cable connector. The driving plate is arranged on the inner bottom face of the electric control box, a shelf located on the periphery of the driving plate is arranged on the inner bottom face of the electric control box, and the control plate is installed on the shelf so that the control plate can be located over the driving plate. The electric control box structure provided by the utility model has relatively high sealing and waterproof performance, the reliable control of equipment is ensured, the control board and the driving board are arranged in a layered and ordered manner and are matched with a regular internal circuit layout, and the reliability of the whole electric control system is improved.

Description

Technical Field

[0001] This utility model relates to the field of energy storage liquid-cooled air conditioning technology, and in particular to the electrical control box structure of a vertical energy storage liquid-cooled air conditioner. Background Technology

[0002] With the rapid development of energy storage systems, vertical liquid-cooled air conditioners play a crucial role in temperature control, ensuring the stable operation of energy storage equipment. However, existing air conditioner control boxes have many drawbacks: Firstly, most control boxes have poor waterproof sealing performance. In the high-humidity environment where liquid-cooled air conditioners operate, moisture can easily penetrate the box, causing internal electronic components to become damp and short-circuit, significantly reducing component lifespan and increasing equipment failure frequency and maintenance costs. Secondly, the drive boards and control boards in conventional control boxes are often haphazardly arranged and distributed, occupying a lot of space, hindering the smooth flow of heat dissipation air, causing localized overheating, and increasing the risk of signal interference due to the long and complicated wiring, seriously affecting the stability and reliability of the control system.

[0003] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an electrical control box structure for a vertical energy storage liquid-cooled air conditioner, which aims to solve one of the technical problems existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An electrical control box structure for a vertical energy storage liquid-cooled air conditioner includes a chassis, an electrical control box disposed within the chassis, a switching power supply, a control board, a drive board, a miniature circuit breaker, and an AC contactor disposed within the electrical control box. The electrical control box has an upper opening that is connected to the top of the chassis. The switching power supply provides power to the control board and the drive board. The control board is electrically connected to the miniature circuit breaker and the AC contactor. The electrical control box has cable through holes, and each cable through hole is fitted with a sealed waterproof cable connector. The drive board is disposed on the inner bottom surface of the electrical control box, and a shelf is disposed on the inner bottom surface of the electrical control box surrounding the drive board. The control board is mounted on the shelf, such that the control board is located directly above the drive board.

[0007] As a further improvement to the above technical solution, the switching power supply, miniature circuit breaker and AC contactor are disposed on the inner bottom surface of the electrical control box, and a wiring terminal group is provided on the inner bottom surface of the electrical control box.

[0008] As a further improvement to the above technical solution, the electrical control box is provided with a sealing gasket on the mating surface with the chassis.

[0009] As a further improvement to the above technical solution, a reactor is provided on the outer side of the electrical control box.

[0010] As a further improvement to the above technical solution, the bottom surface of the electrical control box is provided with heat dissipation fins behind the drive board.

[0011] As a further improvement to the above technical solution, the side of the electrical control box is provided with a threaded hole, and the chassis is provided with a mounting hole corresponding to the threaded hole. The fixing screw passes through the mounting hole and connects to the corresponding threaded hole.

[0012] The beneficial effects of this utility model are as follows: The electrical control box structure provided by this utility model, by specially installing sealed waterproof cable connectors at cable passages, blocks the path of moisture intrusion from key points where the lines pass through. In the high-humidity environment where the vertical energy storage liquid-cooled air conditioner operates, external moisture is effectively isolated outside the electrical control box, greatly reducing the risk of moisture and short circuits to internal electronic components, effectively ensuring a stable operating environment for electronic components, significantly extending the service life of components, reducing equipment failures caused by moisture, reducing maintenance frequency and costs, and improving the overall operation and maintenance efficiency and economy of the equipment.

[0013] In addition, the control board and drive board are arranged in an orderly manner in layers, with a neat internal circuit layout. Compared with the previous long and complicated circuit connection method, the circuit length is greatly shortened, unnecessary entanglement and crossing between circuits are reduced, the conditions for electromagnetic induction interference are weakened, the risk of signal interference is reduced, the signal transmission of the electronic control system is accurate and stable, the reliability of the entire electronic control system is improved, and the efficient and error-free transmission of various control commands and feedback signals of the air conditioner is guaranteed, so as to maintain the stable and efficient operation of the equipment. Attached Figure Description

[0014] Figure 1 Schematic diagram of the structure of the electrical control box provided by this utility model Figure 1 .

[0015] Figure 2 This is a cross-sectional view of the electrical control box provided by this utility model.

[0016] Figure 3 A schematic diagram of the electrical control box provided by this utility model installed on the chassis.

[0017] Explanation of main component symbols: 1-Electrical control box, 10-Cable through hole, 11-Switching power supply, 12-Control board, 13-Drive board, 14-Miniature circuit breaker, 15-AC contactor, 16-Terminal block, 17-Reactor, 18-Threaded hole, 19-Fixing screw, 2-Shelf, 3-Sealing gasket, 4-Heat sink, 5-Chassis. Detailed Implementation

[0018] This utility model provides an electrical control box structure for a vertical energy storage liquid-cooled air conditioner. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit the scope of protection of this utility model.

[0019] Please see Figures 1 to 3 This utility model provides an electrical control box structure for a vertical energy storage liquid-cooled air conditioner, including a chassis 5, an electrical control box 1 disposed within the chassis 5, a switching power supply 11, a control board 12, a drive board 13, a miniature circuit breaker 14, and an AC contactor 15 disposed within the electrical control box 1. The electrical control box 1 has an upper opening that is connected to the top of the chassis 5. The switching power supply 11 supplies power to the control board 12 and the drive board 13. The control board 12 is electrically connected to the miniature circuit breaker 14 and the AC contactor 15. The electrical control box 1 has cable through holes 10, and each cable through hole 10 is fitted with a sealed waterproof cable connector. The drive board 13 is disposed on the inner bottom surface of the electrical control box 1. A shelf 2 is disposed on the inner bottom surface of the electrical control box 1, located around the drive board 13. The control board 12 is mounted on the shelf 2, such that the control board 12 is located directly above the drive board 13.

[0020] The electrical control box structure provided by this utility model, by specially installing a sealed and waterproof cable connector at the cable through-hole 10, blocks the path of moisture intrusion from the key point where the line passes through. In the high-humidity environment where the vertical energy storage liquid-cooled air conditioner is located, external moisture is effectively isolated from the electrical control box 1, which greatly reduces the risk of moisture and short circuits to the internal electronic components, effectively ensures the stable operating environment of the electronic components, significantly extends the service life of the components, reduces equipment failures caused by moisture, reduces maintenance frequency and maintenance costs, and improves the overall operation and maintenance efficiency and economy of the equipment.

[0021] In addition, the control board 12 and drive board 13 are arranged in an orderly manner in layers, with a neat internal circuit layout. Compared with the previous long and complicated circuit connection method, the circuit length is greatly shortened, unnecessary entanglement and crossing between circuits are reduced, the conditions for electromagnetic induction interference are weakened, the risk of signal interference is reduced, the signal transmission of the electronic control system is accurate and stable, the reliability of the entire electronic control system is improved, and the efficient and error-free transmission of various control commands and feedback signals of the air conditioner is guaranteed, so as to maintain the stable and efficient operation of the equipment.

[0022] In practical operation, the control board 12 and the drive board 13 are connected via signal lines to send control commands. The drive board 13 then drives the relevant equipment according to the commands from the control board 12. The control board 12 also connects to components such as the miniature circuit breaker 14 and the AC contactor 15 to monitor and control the circuit's on / off state. The control board 12 is connected to the control coil terminal of the AC contactor 15 via control signal lines. When it is necessary to control the circuit's on / off state, the control board 12 sends a signal to the control coil of the AC contactor 15, causing the main contacts of the AC contactor 15 to close or open, thereby controlling the main circuit (e.g., the power supply circuit for high-power equipment such as compressors). The miniature circuit breaker 14 is installed at the input terminal of the main circuit to provide overload and short-circuit protection for the entire circuit. One end of it is connected to the external AC power input, and the other end is connected to the main contact input terminal of the AC contactor 15.

[0023] Furthermore, the switching power supply 11, miniature circuit breaker 14, and AC contactor 15 are disposed on the inner bottom surface of the electrical control box 1, and a terminal block assembly 16 is provided on the inner bottom surface of the electrical control box 1. The terminal block assembly 16 on the inner bottom surface provides a unified and orderly wiring area for the wiring connections between various components. The switching power supply 11 supplies power to the control board 12 and drive board 13, and the miniature circuit breaker 14 and AC contactor 15 also need to be precisely electrically connected to the control board 12. The terminal block assembly 16 brings together the complex wiring, making wiring operations more convenient and efficient for electricians, preventing wires from being randomly pulled or tangled within the electrical control box 1. During subsequent troubleshooting, maintenance, and upgrades, the wiring path is clearly visible, greatly saving maintenance time and labor costs.

[0024] Understandably, compared to a distributed layout, the centralized placement on the inner bottom surface makes full use of the bottom plane space of the control box 1, leaving more free space above for the control board 12 and drive board 13 to be rationally layered and arranged, avoiding the space being squeezed between components, and facilitating the planning of air circulation and heat dissipation channels. This aligns with the compact and efficient design concept of the control box 1, making the overall structure layout of the control box more scientific and reasonable, which is conducive to miniaturization and adapts to the small installation space requirements of energy storage air conditioners of different specifications.

[0025] In the operating environment of liquid-cooled air conditioners, high humidity is common, and the air contains a large amount of water vapor. To further improve the waterproof sealing performance of the electrical control box 1, a sealing gasket 3 is provided on the mating surface between the electrical control box 1 and the chassis 5. The sealing gasket 3 can fill the tiny gaps between the mating surfaces of the electrical control box 1 and the chassis 5, forming a continuous waterproof barrier, effectively preventing external water vapor from entering the interior of the electrical control box 1 through the mating gaps.

[0026] A reactor 17 is provided on the outer side of the electrical control box 1. The reactor 17 is electrically connected to the AC contactor 15. The main contact output terminal of the AC contactor 15 is connected to the reactor 17. The reactor 17 is mainly used to suppress harmonics and surge currents in the circuit. The output terminal of the reactor 17 is then connected to the power input terminal of the main load equipment of the air conditioner (such as compressor, fan motor, etc.) to provide processed AC power to these devices.

[0027] As a key component in the control box 1, the driver board 13 continuously generates heat during operation. Therefore, heat dissipation fins 4 are provided on the outer bottom surface of the control box 1 behind the driver board 13. After the heat from the driver board 13 is transferred to the control box 1, it is quickly conducted from the control box 1 to the heat dissipation fins 4. The heat dissipation fins 4 have a large surface area, allowing for greater contact with the surrounding air compared to a planar structure, significantly increasing the heat dissipation area. Airflow can carry away more heat, effectively reducing the temperature of the driver board 13 and maintaining it within a suitable operating temperature range. This prevents problems such as performance degradation, shortened lifespan, or even burnout of electronic components caused by overheating.

[0028] During the actual installation of the electrical control box 1, a threaded hole 18 is provided on the side of the electrical control box 1, and a mounting hole corresponding to the threaded hole 18 is provided on the chassis 5. The fixing screw 19 passes through the mounting hole and connects to the corresponding threaded hole 18. The corresponding setting of the threaded hole 18 and the mounting hole enables the electrical control box 1 to be accurately positioned when installed in the chassis 5. The fixing screw 19 passes through the mounting hole and screws into the threaded hole 18, firmly fixing the electrical control box 1 in a specific position in the chassis 5, ensuring that the two are tightly connected. During the operation of the equipment, even if subjected to external forces such as vibration and shaking, the electrical control box 1 will not easily shift or loosen, maintaining the stability of the entire structure and ensuring the reliability of the connection between the various components of the electrical control system.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. An electrical control box structure for a vertical energy storage liquid-cooled air conditioner, characterized in that, The device includes a chassis, an electrical control box housed within the chassis, a switching power supply, a control board, a drive board, a miniature circuit breaker, and an AC contactor housed within the electrical control box. The electrical control box has an upper opening that is flush with the top of the chassis. The switching power supply provides power to the control board and the drive board, and the control board is electrically connected to the miniature circuit breaker and the AC contactor. The electrical control box has cable access holes, each with a sealed waterproof cable connector. The drive board is located on the inner bottom surface of the electrical control box, and a shelf is located on the inner bottom surface of the electrical control box surrounding the drive board. The control board is mounted on the shelf, positioned directly above the drive board.

2. The electrical control box structure of the vertical energy storage liquid-cooled air conditioner according to claim 1, characterized in that, The switching power supply, miniature circuit breaker, and AC contactor are located on the inner bottom surface of the electrical control box, and a terminal block assembly is provided on the inner bottom surface of the electrical control box.

3. The electrical control box structure of the vertical energy storage liquid-cooled air conditioner according to claim 1, characterized in that, The electrical control box has a sealing gasket on the mating surface with the chassis.

4. The electrical control box structure of the vertical energy storage liquid-cooled air conditioner according to claim 1, characterized in that, A reactor is provided on the outer side of the electrical control box.

5. The electrical control box structure of the vertical energy storage liquid-cooled air conditioner according to claim 1, characterized in that, The bottom surface of the electrical control box has heat dissipation fins located behind the drive board.

6. The electrical control box structure of the vertical energy storage liquid-cooled air conditioner according to claim 1, characterized in that, The side of the electrical control box has a threaded hole, and the chassis has a mounting hole corresponding to the threaded hole. The fixing screw passes through the mounting hole and connects to the corresponding threaded hole.

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