Inverter cable wiring device
By designing an inverter cable connection device that uses a housing and sheath mechanism to clamp the cable, the protection problem at the inverter connection point is solved, achieving both protection and heat dissipation effects, and reducing operation and maintenance risks and power generation losses.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-03-10
AI Technical Summary
In existing photovoltaic projects, the connection points of inverters lack protective equipment, making DC cables susceptible to being chewed by snakes, insects, and rats, which may cause short circuits and fires, affecting operation and maintenance and power generation.
Design an inverter cable wiring device, including a housing and a sheathing mechanism. The housing is fixed below the inverter, and the sheathing mechanism consists of a first sheathing clamp, a second sheathing clamp, and an elastic component, used to clamp the cable and provide protection and heat dissipation functions.
It effectively prevents external organisms from gnawing on the cables, improves heat dissipation performance, reduces operation and maintenance risks, and avoids fires and power generation losses.
Smart Images
Figure CN223986758U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to inverter cable wiring technical field, especially inverter cable wiring device. BACKGROUND
[0002] The core equipment of the existing photovoltaic project is inverter, and the inverter is generally arranged on the roof, ground or water surface, at present, there is no protection equipment at the connecting position of the direct current cable and the inverter, so that the position is extremely easy to be bitten by snakes, insects and mice, thereby causing the short circuit of the direct current side of the photovoltaic power station, and the fire is even caused seriously, which greatly influences the future operation and maintenance, and the power generation loss is caused by the maintenance power failure. CONTENT OF THE UTILITY MODEL
[0003] The utility model aims at solving one of the technical problems in the prior art at least, for this purpose, the utility model provides an inverter cable wiring device, which can protect the connecting position of the cable and the inverter.
[0004] The inverter cable wiring device according to the embodiment of the utility model comprises:
[0005] The shell is fixedly connected below the inverter, the shell has a cavity, the upper end of the shell has an opening communicating with the cavity, and the bottom wall of the shell is provided with a threading hole communicating the cavity with the outside of the shell.
[0006] The sheath mechanism is located in the cavity, the sheath mechanism comprises a first sheath clamp, a second sheath clamp and an elastic component, the first sheath clamp and the second sheath clamp are movably arranged at the threading hole, the elastic component is used for providing elastic force for clamping the first sheath clamp and the second sheath clamp, and the first sheath clamp and the second sheath clamp are used for clamping and covering the cable passing through the threading hole.
[0007] The inverter cable wiring device according to the embodiment of the utility model has at least the following beneficial effects: the shell can provide a protective effect on the wiring position of the cable and the inverter by being arranged, the cable is not easy to be bitten by external organisms, and the first sheath clamp and the second sheath clamp of the sheath mechanism are clamped and covered on the outer periphery of the cable, which also protects the cable, the sheath mechanism can be opened when the cable is installed, then the cable is threaded into the threading hole from bottom to top, and the sheath mechanism is released, under the action of the elastic component, the first sheath clamp and the second sheath clamp are clamped and covered on the outer periphery of the cable, and the operation is relatively convenient.
[0008] According to some embodiments of the utility model, the sheath mechanism further includes a square frame, the bottom of the first sheath clamp is provided with a horizontally arranged first bottom plate, the bottom of the second sheath clamp is provided with a horizontally arranged second bottom plate, the first bottom plate and the second bottom plate are respectively slidably connected with the square frame, the first bottom plate and the second bottom plate can approach or move away from each other along the horizontal direction, the first bottom plate and the second bottom plate partially cover the threading port, the elastic component includes a first spring and a second spring, the first spring is located between the square frame and the first bottom plate to provide a reset force to the first bottom plate, the second spring is located between the square frame and the second bottom plate to provide a reset force to the second bottom plate.
[0009] According to some embodiments of the utility model, the first bottom plate and the second bottom plate are heat dissipation grid plates.
[0010] According to some embodiments of the utility model, the bottom wall of the shell is provided with an annular boss extending along the circumference of the threading port, and the square frame is buckle-connected to the top of the annular boss.
[0011] According to some embodiments of the utility model, the first sheath clamp and the second sheath clamp are C-shaped in cross section.
[0012] According to some embodiments of the utility model, the first sheath clamp and the second sheath clamp are made of fireproof material.
[0013] According to some embodiments of the utility model, the shell is provided with a switch door for opening or closing the cavity.
[0014] According to some embodiments of the utility model, the bottom wall of the shell is provided with a plurality of heat dissipation holes for connecting the cavity with the outside of the shell.
[0015] According to some embodiments of the utility model, the shell is made of stainless steel.
[0016] Additional aspects and advantages of the utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0017] The utility model will be further described below in combination with the drawings and embodiments, wherein:
[0018] Figure 1 It is the schematic diagram of inverter cable wiring device and inverter of some embodiments of the utility model;
[0019] Figure 2 It is the schematic diagram of inverter cable wiring device of some embodiments of the utility model;
[0020] Figure 3 This is a top view of the sheath mechanism of the inverter cable wiring device according to some embodiments of the present invention.
[0021] Figure label:
[0022] Inverter 100;
[0023] Inverter cable connection device 200;
[0024] Housing 300, cavity 301, opening 302, wire hole 303, door opening and closing 304, heat dissipation hole 305, hinge 306, door latch 307, fixing bolt 308;
[0025] Sheath mechanism 400, first sheath clip 401, first base plate 402, second sheath clip 403, second base plate 404, first spring 405, second spring 406, square frame 407, annular boss 408. Detailed Implementation
[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0027] Reference Figure 1 and Figure 2 As shown, the inverter cable wiring device 200 of this embodiment includes a housing 300 and a sheath mechanism 400.
[0028] Reference Figure 1 and Figure 2 As shown, the housing 300 has a box-shaped structure and includes a cavity 301. The upper end of the housing 300 has an opening 302 communicating with the cavity 301. The bottom wall of the housing 300 has a cable pass-through port 303, which connects the cavity 301 to the outside of the housing 300. The housing 300 can be fixedly connected to the bottom of the inverter 100 using fixing bolts 308. The housing 300 can be made of stainless steel, which provides rust prevention and good thermal conductivity.
[0029] The sheathing mechanism 400 is mainly used to protect cables, see reference. Figure 1 and Figure 2As shown, the sheath mechanism 400 is located inside the cavity 301. The sheath mechanism 400 includes a first sheath clamp 401, a second sheath clamp 403, and an elastic component. The first sheath clamp 401 and the second sheath clamp 403 are movably disposed at the cable insertion port 303. The elastic component is used to provide the elastic force to clamp the first sheath clamp 401 and the second sheath clamp 403. The elastic component can be a spring or a sheet. The first sheath clamp 401 and the second sheath clamp 403 are used to clamp and cover the cable passing through the cable insertion port 303.
[0030] In this embodiment, a housing 300 is provided to protect the connection points between the cable and the inverter 100, making the cable less susceptible to being chewed by external organisms. A sheathing mechanism 400 is also provided, with a first sheath clamp 401 and a second sheath clamp 403 clamping and covering the outer periphery of the cable, further protecting it. When installing the cable, the sheathing mechanism 400 can be opened, and the cable can be inserted from bottom to top into the cable entry port 303. Then, the sheathing mechanism 400 can be released, and under the action of the elastic component, the first sheath clamp 401 and the second sheath clamp 403 clamp and cover the outer periphery of the cable, making the operation relatively convenient.
[0031] In addition, since this embodiment has a wire hole 303 at the bottom of the housing 300, the position of the wire hole 303 is conducive to airflow for the inverter 100 which dissipates heat from the bottom through exhaust and ventilation, and can improve the heat dissipation effect.
[0032] Reference Figure 2 and Figure 3 As shown, according to some embodiments of the present invention, the sheath mechanism 400 further includes a square frame 407. The bottom of the first sheath clip 401 is provided with a horizontally arranged first base plate 402, and the bottom of the second sheath clip 403 is provided with a horizontally arranged second base plate 404. The first base plate 402 and the second base plate 404 are slidably connected to the square frame 407. The first base plate 402 and the second base plate 404 can move closer to or further away from each other in the horizontal direction. The first base plate 402 and the second base plate 404 partially cover the threading opening 303, thereby sealing the sheath mechanism 400 from the threading opening 303. The gap between the wire openings 303 makes it difficult for external organisms to enter the cavity 301 through the wire openings 303, thus providing a protective function. The elastic components include a first spring 405 and a second spring 406. The first spring 405 is located between the square frame 407 and the first base plate 402, and the second spring 406 is located between the square frame 407 and the second base plate 404. Under the elastic force of the first spring 405 and the second spring 406, the first base plate 402 and the second base plate 404 move closer to each other, so that the first sheath clamp 401 and the second sheath clamp 403 keep clamping the cable.
[0033] Since current flowing through a cable will cause the cable to heat up, according to some embodiments of this utility model, referring to... Figure 2 andFigure 3 As shown, the first base plate 402 and the second base plate 404 are heat dissipation grid plates. The heat dissipation grid plates have multiple small mesh holes, which allows the airflow inside the cavity 301 to flow to the outside through the wire holes, which can smoothly carry away the heat of the cable, thereby improving the heat dissipation performance and preventing external organisms from entering the cavity through the mesh holes.
[0034] Reference Figure 2 and Figure 3 As shown, according to some embodiments of the present invention, the bottom wall of the housing 300 is provided with an annular boss 408 extending along the periphery of the cable insertion port 303. The annular boss 408 is located inside the cavity 301 and extends upward. The annular boss 408 can be square or round. A square frame 407 is snapped to the top of the annular boss 408. The annular boss 408 surrounds the outer periphery of the cable and plays a guiding and fixing role. The annular boss 408 also plays a connecting and supporting role for the sheath mechanism 400, which can facilitate the assembly of the sheath mechanism 400.
[0035] Reference Figure 3 As shown, according to some embodiments of the present invention, the cross-section of the first sheath clip 401 and the second sheath clip 403 is C-shaped, and the first sheath clip 401 and the second sheath clip 403 can form a circular area or an elliptical area.
[0036] According to some embodiments of this utility model, the first sheath clip 401 and the second sheath clip 403 are made of fire-resistant materials, such as asbestos, polyvinyl chloride, or fire-resistant foam plastic.
[0037] Reference Figure 1 and Figure 2 As shown, according to some embodiments of the present invention, the housing 300 is provided with a switch door 304 for opening or closing the cavity 301. One side of the switch door 304 is rotatably connected to the housing 300 via a hinge 306, and the other side of the switch door 304 is snapped into the housing 300 via a fixing latch 307. After the housing 300 is installed at the bottom of the inverter 100, the sheath mechanism 400 can be exposed by opening the switch door 304, which facilitates the operation of the sheath mechanism 400 when installing cables.
[0038] Reference Figure 2 and Figure 3 As shown, according to some embodiments of the present invention, the bottom wall of the housing 300 is provided with a plurality of conductive cavities 301 and heat dissipation holes 305 on the outside of the housing 300. The diameter of the heat dissipation holes 305 is small to prevent external organisms from entering the cavities 301. The heat dissipation holes 305 can improve the airflow in the cavities 301, thereby improving the heat dissipation effect on the cable.
[0039] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0040] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0041] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0042] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An inverter cable connection device, characterized by, The application is applied to an inverter cable connection device, which comprises: a shell fixedly connected to the lower part of the inverter, the shell having a cavity, the upper end of the shell having an opening communicating with the cavity, the bottom wall of the shell being provided with a threading opening leading to the cavity and the outside of the shell; a sheath mechanism located in the cavity, the sheath mechanism comprising a first sheath clamp, a second sheath clamp and an elastic component, the first sheath clamp and the second sheath clamp being movably arranged at the threading opening, the elastic component being used to provide elastic force for clamping the first sheath clamp and the second sheath clamp, the first sheath clamp and the second sheath clamp being used to clamp and cover the cable passing through the threading opening.
2. The inverter cable lacing device of claim 1, wherein, The sheath mechanism further comprises a square frame, the bottom of the first sheath clamp being provided with a horizontally arranged first bottom plate, the bottom of the second sheath clamp being provided with a horizontally arranged second bottom plate, the first bottom plate and the second bottom plate being respectively slidably connected with the square frame, the first bottom plate and the second bottom plate being capable of moving towards or away from each other in the horizontal direction, the first bottom plate and the second bottom plate partially covering the threading opening, the elastic component comprising a first spring and a second spring, the first spring being located between the square frame and the first bottom plate to provide a reset force to the first bottom plate, the second spring being located between the square frame and the second bottom plate to provide a reset force to the second bottom plate.
3. The inverter cable lacing device of claim 2, wherein, The first bottom plate and the second bottom plate are heat dissipation grid plates.
4. The inverter cable lacing device of claim 2, wherein, The bottom wall of the shell is provided with an annular boss extending along the periphery of the threading opening, and the square frame is buckle-connected to the top of the annular boss.
5. The inverter cable lacing device of claim 1, wherein, The first sheath clamp and the second sheath clamp are C-shaped in cross section.
6. The inverter cable lacing device of claim 1, wherein, The first sheath clamp and the second sheath clamp are made of fireproof material.
7. The inverter cable lacing device of claim 1, wherein, The shell is provided with a switch door for opening or closing the cavity.
8. The inverter cable lacing device of claim 1, wherein, The bottom wall of the shell is provided with a plurality of heat dissipation holes leading to the cavity and the outside of the shell.
9. The inverter cable lacing device of claim 1, wherein, The shell is made of stainless steel.