Construction equipment power supply box with MPPT charging and discharging controller

Abstract

The utility model discloses a construction equipment power supply box with an MPPT (maximum power point tracking) charging and discharging controller, which comprises a box body and a solar charging and discharging controller fixedly mounted in the box body, a cable is connected to a bottom interface of the solar charging and discharging controller, a cable management frame is fixedly mounted on the inner wall of the box body, the cable management frame is positioned below the cable management frame, and the solar charging and discharging controller is connected with the cable management frame. The surface of the cable management frame is provided with an upper row of cable management ports and a lower row of cable management ports, protection pieces can be inserted into the cable management ports, each protection piece comprises an insertion ring and limiting rings fixed to the upper end and the lower end of the insertion ring, the limiting rings are located on the outer sides of the insertion rings, the inner walls of the limiting rings are fixedly connected with rubber strips, the rubber strips make direct contact with cables, and abrasion can be reduced. According to the utility model, the rubber strip on the surface of the insertion ring is in direct contact with the cable, the rubber has elasticity and flexibility, when the cable generates displacement due to vibration, the rubber strip absorbs vibration energy through deformation, rigid friction between the cable and the metal cable arrangement frame is converted into flexible contact, and the abrasion strength is greatly reduced.

Description

Construction equipment power supply box with MPPT charge / discharge controller Technical Field

[0001] This utility model relates to the field of power supply box technology, specifically a power supply box for construction equipment with an MPPT charge and discharge controller. Background Technology

[0002] The MPPT (Maximum Power Point Tracking) charge / discharge controller is the core component of the power supply box, responsible for maximum power point tracking, charge / discharge control, and communication and coordination with other components. It typically has multiple input / output interfaces for connecting devices such as solar panels, batteries, and loads. A construction equipment power supply box with an MPPT charge / discharge controller is a device used to provide power to construction equipment. It combines MPPT technology and charge / discharge control functions, effectively utilizing renewable energy sources such as solar energy to power the construction equipment.

[0003] Construction sites are equipped with various construction equipment, which often vibrate during operation (such as excavators and cranes). This vibration causes the cables of the charge / discharge controller to rub against the inner wall of the cable management rack. The edges of the metal cable management rack are relatively sharp, and long-term friction will gradually thin the cable insulation layer (such as PVC, rubber, etc.), resulting in exposed internal conductors. After the insulation layer fails, the cable may short-circuit due to contact with the metal rack, or leak current due to moisture or dust intrusion. Ultimately, this will cause the charge / discharge controller to be unable to accurately monitor parameters such as voltage and current, or even damage the equipment. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a power supply box for construction equipment with an MPPT charge / discharge controller, thus solving the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a power supply box for construction equipment with an MPPT charge / discharge controller, comprising a box body and a solar charge / discharge controller fixedly installed inside the box body. A cable is connected to the bottom interface of the solar charge / discharge controller. A cable management rack is fixedly installed on the inner wall of the box body. The cable management rack is located below the cable management rack. The surface of the cable management rack has two rows of cable management openings, and a protective component can be inserted into the cable management opening. The protective component includes a plug ring and a limiting ring fixed to the upper and lower ends of the plug ring. The limiting ring is located outside the plug ring. A rubber strip is fixedly connected to the inner wall of the limiting ring. The rubber strip directly contacts the cable, which can reduce wear.

[0008] Preferably, both ends of the cable management rack are fixedly connected to sleeves, and a cover plate is provided on the front side of the cable management rack. A pin is fixedly connected to the side of the cover plate near the cable management rack. When installing the cover plate, the end of the pin is inserted into the sleeve.

[0009] Preferably, a base plate is fixedly connected to the inner wall of the box, a rubber pad is fixedly connected to the surface of the base plate, the solar charge and discharge controller is fixedly installed to the base plate by bolts, and the rear side of the solar charge and discharge controller is in contact with the rubber pad.

[0010] Preferably, the cable management port, the limiting ring, and the insertion ring are all U-shaped.

[0011] Preferably, an inverter is fixedly installed on the inner wall of the enclosure, and the inverter is located above the cable management rack.

[0012] Preferably, the front side wall of the box is fitted with a door via a hinge.

[0013] (III) Beneficial Effects

[0014] This utility model provides a power supply box for construction equipment with an MPPT charge / discharge controller, which has the following advantages:

[0015] 1. In this utility model, a protective component is installed inside the cable management opening of the cable management rack. The rubber strip on the surface of the insertion ring directly contacts the cable. Rubber has elasticity and flexibility. When the cable is displaced due to vibration, the rubber strip absorbs the vibration energy through deformation, transforming the rigid friction between the cable and the metal cable management rack into flexible contact, which greatly reduces the wear force. The rubber strip can increase the contact area with the cable, disperse local pressure, and avoid single-point concentrated wear (such as the edge cutting effect of traditional metal cable management openings). Ultimately, it can improve the service life of the cable and ensure the normal operation of the solar charge and discharge controller.

[0016] 2. In this invention, the capacitors, resistors, chips, and other components on the internal circuit board of the controller are fixed by solder joints. Long-term high-intensity vibration may cause fatigue fracture of the solder joints (especially high-power electrolytic capacitors). Adding rubber vibration damping between the solar charge / discharge controller and the substrate can reduce the vibration experienced by the components and reduce the risk of fracture. Attached Figure Description

[0017] Figure 1 is a front-view perspective view of the power supply box for the construction equipment with an MPPT charge / discharge controller proposed in this utility model.

[0018] Figure 2 is a structural diagram of the cover plate of the power supply box of the construction equipment with MPPT charge and discharge controller proposed in this utility model in the disassembled state.

[0019] Figure 3 is a partial structural diagram of the power supply box for the construction equipment with MPPT charge and discharge controller proposed in this utility model;

[0020] Figure 4 is an enlarged structural view of point A in Figure 1;

[0021] Figure 5 is an enlarged structural diagram of section B in Figure 2.

[0022] In the diagram: 1. Cabinet; 2. Solar charge / discharge controller; 3. Base plate; 4. Rubber pad; 5. Cable management rack; 501. Cable management port; 6. Limiting ring; 7. Insert ring; 8. Rubber strip; 9. Pin; 10. Insert sleeve; 11. Cabinet door; 12. Cover plate; 13. Cable; 14. Inverter. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please refer to Figures 2, 3, and 5. This utility model provides a technical solution: a power supply box for construction equipment with an MPPT charge / discharge controller, including a box body 1 and a solar charge / discharge controller 2 fixedly installed inside the box body 1. A cable 13 is connected to the bottom interface of the solar charge / discharge controller 2. A cable management rack 5 is fixedly installed on the inner wall of the box body 1. The cable management rack 5 is located below the cable management rack 5. The surface of the cable management rack 5 has two rows of cable management ports 501. A protective component can be inserted into the cable management port 501. The protective component includes a plug ring 7 and a limiting ring 6 fixed to the upper and lower ends of the plug ring 7. The limiting ring 6 is located outside the plug ring 7. A rubber strip 8 is fixedly connected to the inner wall of the limiting ring 6. The rubber strip 8 directly contacts the cable 13, which can reduce wear.

[0025] A protective component is installed inside the cable management opening 501 of the cable management rack 5. The rubber strip 8 on the surface of the insertion ring 7 directly contacts the cable 13. Rubber has elasticity and flexibility. When the cable 13 is displaced due to vibration, the rubber strip 8 absorbs the vibration energy through deformation, transforming the rigid friction between the cable 13 and the metal cable management rack 5 into flexible contact, which greatly reduces the wear force. The rubber strip 8 can increase the contact area with the cable 13, disperse local pressure, and avoid single-point concentrated wear (such as the edge cutting effect of the traditional metal cable management opening 501). Ultimately, it can improve the service life of the cable 13 and ensure the normal operation of the solar charge and discharge controller 2.

[0026] Furthermore, the aforementioned protective components are detachable, making them flexible and convenient to use. When the rubber strip 8 is damaged, there is no need to disassemble the entire cable bundle 13 or the cable management rack 5; the protective component can be removed and replaced individually.

[0027] Referring to Figure 3, both ends of the cable management rack 5 are fixedly connected to the sleeves 10. A cover plate 12 is provided on the front side of the cable management rack 5. A pin 9 is fixedly connected to the side of the cover plate 12 near the cable management rack 5. When installing the cover plate 12, the end of the pin 9 is inserted into the sleeve 10.

[0028] To protect the cable 13 and prevent it from falling out of the cable management port 501, the pin 9 is aligned with the sleeve 10, thus achieving the purpose of assembling the cover plate 12 and the cable management frame 5. That is, the cover plate 12 prevents the cable 13 from falling out of the cable management port 501. Similarly, a rubber layer can also be provided on the surface of the cover plate 12 to reduce wear.

[0029] The pin 9 and the sleeve 10 are in a transition fit to improve the stability of the connection and prevent it from falling off.

[0030] Referring to Figure 4, a base plate 3 is fixedly connected to the inner wall of the housing 1, and a rubber pad 4 is fixedly connected to the surface of the base plate 3. The solar charge and discharge controller 2 is fixedly installed to the base plate 3 by bolts, and the rear side of the solar charge and discharge controller 2 is in contact with the rubber pad 4.

[0031] The capacitors, resistors, chips, and other components on the internal circuit board of the solar charge / discharge controller 2 are fixed by solder joints. Long-term high-intensity vibration may cause fatigue fracture of the solder joints (especially high-power electrolytic capacitors). Rubber shock absorbers are installed between the solar charge / discharge controller 2 and the substrate 3. The rubber pads 4 can buffer and reduce the vibration experienced by the components, reducing the risk of breakage.

[0032] Referring to Figures 3 and 5, the cable management port 501, the limiting ring 6, and the insertion ring 7 are all U-shaped.

[0033] The upper and lower rows of cable management slots 501 provide a regular path for the cables 13 to pass through, preventing the cables 13 from becoming tangled and facilitating construction, wiring, and subsequent maintenance. The main frame, which serves as a protective component, is typically made of rigid materials (such as plastic or metal). After being inserted into the cable management slots 501, it forms a stable inner lining. The rubber strip 8 is located inside the limiting ring 6 and directly contacts the cables 13, reducing wear. The insertion rings 7 serve as a limit and are distributed on the upper and lower sides of the cable management slots 501, preventing the entire protective component from falling off. The opening direction of the U-shaped structure (facing outwards from the cable management frame 5) allows the cables 13 to slide in from the side, significantly improving construction efficiency.

[0034] Referring to Figure 1, an inverter 14 is fixedly installed on the inner wall of the enclosure 1. The inverter 14 is located above the cable management rack 5. The main function of the inverter 14 is to realize the conversion of electrical energy. A circuit breaker is also provided as a circuit switch to facilitate power cut-off during maintenance or normal start-up and shutdown of the equipment. The above components are existing structures and are not the direction of improvement of this application, so they will not be described in detail.

[0035] Referring to Figure 1, the front side wall of the box 1 is fitted with a door 11 via a hinge. When the door 11 is closed, it effectively blocks dust, rainwater and oil from entering the construction environment. The door 11 serves as a physical barrier and can also be fitted with a lock to prevent unauthorized personnel from operating or damaging it.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A power supply box for construction equipment with an MPPT charge / discharge controller, characterized in that: The device includes a housing (1) and a solar charge / discharge controller (2) fixedly installed inside the housing (1). A cable (13) is connected to the bottom interface of the solar charge / discharge controller (2). A cable management rack (5) is fixedly installed on the inner wall of the housing (1). The cable management rack (5) is located below the cable management rack (5). The surface of the cable management rack (5) has two rows of cable management ports (501). A protective component can be inserted into the cable management port (501). The protective component includes a plug ring (7) and a limiting ring (6) fixed at the upper and lower ends of the plug ring (7). The limiting ring (6) is located outside the plug ring (7). A rubber strip (8) is fixedly connected to the inner wall of the limiting ring (6). The rubber strip (8) is in direct contact with the cable (13) to reduce wear.

2. The power supply box for construction equipment with MPPT charge / discharge controller according to claim 1, characterized in that: Both ends of the cable management rack (5) are fixedly connected to the sleeves (10). A cover plate (12) is provided on the front side of the cable management rack (5). A pin (9) is fixedly connected to the side of the cover plate (12) near the cable management rack (5). When installing the cover plate (12), the end of the pin (9) is inserted into the sleeve (10).

3. The power supply box for construction equipment with MPPT charge / discharge controller according to claim 1, characterized in that: The inner wall of the housing (1) is fixedly connected to a base plate (3), and a rubber pad (4) is fixedly connected to the surface of the base plate (3). The solar charge and discharge controller (2) is fixedly installed to the base plate (3) by bolts, and the rear side of the solar charge and discharge controller (2) is in contact with the rubber pad (4).

4. The power supply box for construction equipment with MPPT charge / discharge controller according to claim 1, characterized in that: The cable management port (501), the limiting ring (6), and the insertion ring (7) are all U-shaped.

5. The power supply box for construction equipment with MPPT charge / discharge controller according to claim 1, characterized in that: An inverter (14) is fixedly installed on the inner wall of the enclosure (1), and the inverter (14) is located above the cable management rack (5).

6. The power supply box for construction equipment with MPPT charge / discharge controller according to claim 1, characterized in that: The front side wall of the box (1) is fitted with a door (11) via a hinge.

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