Photovoltaic combiner box

Abstract

The utility model relates to a photovoltaic combiner box which comprises a box body, one end of the box body is in an opening state, a bottom plate at the bottom of the box body is provided with a strip-shaped threading hole, and the bottom plate is provided with an adjusting device capable of controlling the opening degree of the strip-shaped threading hole; the box door can be rotationally buckled on the opening of the box body, one side of the box door is hinged to the box body, the box door is detachably installed on the box body, and after the box door is buckled on the opening, the hinged part is located in the box door. The utility model mainly aims to provide the photovoltaic combiner box, the box door and the box body are convenient to disassemble, so that when a maintenance worker detects and maintains electrical equipment in the photovoltaic combiner box, the box door can be disassembled, and the influence on the maintenance operation caused by the buckling phenomenon of the box door is avoided.

Description

Technical Field

[0001] This utility model relates to an electrical device, specifically a photovoltaic combiner box. Background Technology

[0002] Photovoltaic combiner boxes are typically installed outdoors and are suitable for photovoltaic string power generation systems. They are an important power protection component that connects string inverters to the power grid system.

[0003] In existing technology, when it is necessary to repair the electrical equipment inside the photovoltaic combiner box, the box door is opened before inspection and repair. However, as mentioned above, since photovoltaic combiner boxes are usually installed outdoors, the door often latches shut during maintenance due to the outdoor environment. This forces workers to block the door with their hands or even their bodies, causing them to be distracted. Utility Model Content

[0004] The main purpose of this utility model is to provide a photovoltaic combiner box with a door that is easy to disassemble from the box body. This allows maintenance personnel to remove the door when inspecting and repairing the electrical equipment inside the photovoltaic combiner box, thereby avoiding the impact of the door's latching on the maintenance work.

[0005] To achieve the above objectives, this utility model provides a photovoltaic combiner box, comprising:

[0006] The box body has an open end and a strip-shaped wire hole on the bottom plate. The bottom plate is equipped with an adjustment device that can control the opening of the strip-shaped wire hole.

[0007] The door can be rotated and fastened to the opening of the box. One side of the door is hinged to the box, and the door can be detachably installed with the box. When the door is fastened to the opening, the hinged part is located inside the door.

[0008] Preferably, the adjusting device includes an adjusting plate with arc-shaped adjusting holes. The number and position of the adjusting holes are matched with the number of threading holes, and the adjusting plate is slidably connected to the base plate.

[0009] In a further preferred embodiment, the adjusting plate has strip-shaped holes on both sides, and a threaded post is fixed on the base plate. The top of the threaded post passes through the strip-shaped hole and is screwed to a nut.

[0010] Preferably, the door and the body are rotatably connected by a hinge.

[0011] A further preferred embodiment is that the hinge shaft is a telescopic structure.

[0012] More preferably, the hinge shaft includes an upper pin, a guide rod, a spring, and a lower pin. The upper pin and the lower pin are used to connect the door and the body. The upper pin and the lower pin are slidably connected to both ends of the guide rod, and the spring is sleeved on the outside of the guide rod and located between the upper pin and the lower pin.

[0013] In a further preferred embodiment, the upper pin and the lower pin are respectively provided with insertion holes at their opposite ends, and the guide rod is slidably connected to the upper pin and the lower pin through the insertion holes respectively.

[0014] The beneficial effects of using this information are:

[0015] 1. The detachable door design avoids interference with the latches.

[0016] The cabinet door and body are connected by a hinge and can be detached for installation, allowing the door to be disassembled entirely for maintenance. Compared to traditional fixed doors that require manual or physical intervention to close, this design eliminates the interference of automatic door closure, allowing staff to focus on repairs, improving efficiency and reducing safety hazards.

[0017] 2. The hinges are hidden inside the door.

[0018] After the door is closed, the hinge structure is located inside the cabinet, preventing external environment (such as rainwater and dust) from directly corroding the hinge components, extending the service life of the hinge structure, and preventing the door from being opened through the connection end when the cabinet is not open.

[0019] 3. Adjustable opening of the strip threading hole

[0020] The strip-shaped cable threading holes on the base plate are equipped with an adjustment device, which can flexibly adjust the size of the cable threading hole opening according to the number and diameter of the cables. This avoids the cable falling out if the cable threading hole is too large after it is passed into the box, or the cable sheath being worn if the cable threading hole is too small. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a three-dimensional structural diagram of the photovoltaic combiner box of this utility model;

[0023] Figure 2 This is a three-dimensional structural schematic diagram of the photovoltaic combiner box of this utility model from another angle;

[0024] Figure 3 This is a schematic diagram showing the position of the hinge shaft of the photovoltaic combiner box of this utility model;

[0025] Figure 4 yes Figure 3 Enlarged view of section A;

[0026] Figure 5 This is a schematic diagram of the structure of the photovoltaic combiner box of this utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the base plate of the photovoltaic combiner box of this utility model;

[0028] Figure 7 This is a schematic diagram of the hinge shaft of the photovoltaic combiner box of this utility model.

[0029] Explanation of reference numerals in the attached figures

[0030] 100. Box body;

[0031] 110. Base plate; 111. Strip-shaped threading hole; 112. First rubber sleeve;

[0032] 113. Threaded post; 114. Nut;

[0033] 120. Adjusting plate; 121. Adjusting hole; 122. Second rubber sleeve;

[0034] 123. Slotted hole;

[0035] 200. Box door; 300. Hinge pivot;

[0036] 310. Upper pin; 320. Lower pin; 330. Guide rod; 340. Spring. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] like Figure 1 As shown, this embodiment provides a photovoltaic combiner box, including a box body 100 and a box door 200. The box door 200 is detachably fastened to the opening of the box body 100. An mounting plate is installed on the back of the box body 100, and various necessary electrical components, including surge protectors, relays and other equipment, are installed on the mounting plate.

[0039] Specifically, in this embodiment, such as Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, a strip-shaped threading hole 111 is provided on the bottom plate 110 at the bottom of the housing 100. A first rubber sleeve 112 is fitted onto the strip-shaped threading hole 111. The opening and closing degree of the strip-shaped threading hole 111 is controlled by an adjusting device provided on the bottom plate 110. Preferably, in this embodiment, the adjusting device includes an adjusting plate 120. An arc-shaped adjusting hole 121 is provided at the end of the adjusting plate 120. A second rubber sleeve 122 is fitted onto the edge of the adjusting hole 121. The number and position of the adjusting holes 121 are matched with the number of threading holes. The adjusting plate 120 is slidably connected to the bottom plate 110. Specifically, strip-shaped holes 123 are provided on both sides of the adjusting plate 120. A threaded post 113 is fixed on the bottom plate 110. The top end of the threaded post 113 passes through the strip-shaped hole 123 and is screwed onto a nut 114. In this way, by moving the adjusting plate 120, the opening of the strip-shaped wire hole 111 can be increased or decreased as the adjusting plate 120 moves away from or closer to the opening.

[0040] In this embodiment, as Figures 2 to 4 , Figure 7 As shown, the door 200 can be rotatably fastened to the opening of the box body 100. One side of the door 200 is hinged to the box body 100, and the door 200 is detachably installed with the box body 100. When the door 200 is fastened to the opening, the hinged part is located inside the door 200. This allows the hinged part between the door 200 and the box body 100 to be hidden, preventing the door 200 from being opened by disassembling the hinged part when the door 200 is not open.

[0041] Specifically, in this embodiment, the door 200 and the body 100 are rotatably connected via a hinge shaft 300. Preferably, the hinge shaft 300 is a telescopic structure. Specifically, the hinge shaft 300 includes an upper pin 310, a guide rod 330, a spring 340, and a lower pin 320. The upper pin 310 and the lower pin 320 are used to connect the door 200 and the body 100. The upper pin 310 and the lower pin 320 are slidably connected to both ends of the guide rod 330, and the spring 340 is sleeved on the outside of the guide rod 330, and the spring 340 is located between the upper pin 310 and the lower pin 320. Insertion holes are provided at the opposite ends of the upper pin 310 and the lower pin 320, and the guide rod 330 is slidably connected to the upper pin 310 and the lower pin 320 through the insertion holes. Thus, when the door 200 needs to be disassembled, the upper pin 310 and the lower pin 320 move relative to each other along the guide rod 330 until the upper pin 310 and the lower pin 320 disengage from the connection between the door 200 and the box body 100, thereby completing the separation of the door 200 from the box body 100. The function of the spring 340 is to facilitate the reset of the upper pin 310 and the lower pin 320, and at the same time prevent the upper pin 310 and the lower pin 320 from moving relative to each other during operation.

[0042] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A photovoltaic combiner box, characterized in that, include: The box body has an open end and a strip-shaped wire hole on the bottom plate. The bottom plate is equipped with an adjustment device that can control the opening degree of the strip-shaped wire hole. The box door is rotatably fastened to the opening of the box body. One side of the box door is hinged to the box body, and the box door is detachably installed to the box body. When the box door is fastened to the opening, the hinged part is located inside the box door.

2. A photovoltaic combiner box according to claim 1, characterized in that, The adjusting device includes an adjusting plate with arc-shaped adjusting holes. The number and position of the adjusting holes are matched with the number of threading holes. The adjusting plate is slidably connected to the base plate.

3. A photovoltaic combiner box according to claim 2, characterized in that, The adjusting plate has strip-shaped holes on both sides, and a threaded post is fixed on the base plate. The top of the threaded post passes through the strip-shaped hole and is screwed to a nut.

4. A photovoltaic combiner box according to claim 1, characterized in that, The door and the box body are rotatably connected by a hinge shaft.

5. A photovoltaic combiner box according to claim 4, characterized in that, The hinge shaft is a telescopic structure.

6. A photovoltaic combiner box according to claim 5, characterized in that, The hinge shaft includes an upper pin, a guide rod, a spring, and a lower pin. The upper pin and the lower pin are used to connect the door and the box body. The upper pin and the lower pin are slidably connected to both ends of the guide rod. The spring is sleeved on the outside of the guide rod and is located between the upper pin and the lower pin.

7. A photovoltaic combiner box according to claim 6, characterized in that, The upper pin and the lower pin are respectively provided with insertion holes at their opposite ends, and the guide rod is slidably connected to the upper pin and the lower pin through the insertion holes.

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