Threading plate compatible with various specifications and sizes of cables

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By designing threading plates that are compatible with multiple specifications and cable sizes, and using coaxial nested double specifications and double-layer protective structures, the cable specification adaptation problem in the prior art is solved, achieving the effect of versatility and cost reduction.

CN222581985UActive Publication Date: 2025-03-07SHANGHAI CHINT POWER SYST CO LTD +1

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Patent Information

Application Number: CN202420187931.6
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-01-25
Publication Date: 2025-03-07
Estimated Expiration: 2034-01-25

AI Technical Summary

Technical Problem

The prior art is difficult to compatible with multiple cable specifications within a limited size, resulting in a single sealing solution, high cost and great adaptation challenges.

Method used

Design a threading plate compatible with multiple specifications and cable sizes, using coaxial nested double specifications and double-layer protective structures to achieve versatility through tearing edge seals.

Benefits of technology

It has achieved the adaptation to multiple cable specifications within limited sizes, reducing costs, enhancing functionality, and adapting to cable application environments in different countries.

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Abstract

The utility model belongs to the technical field of electrical control equipment, and discloses a threading plate compatible with various specifications and sizes of cables. The threading plate body is provided with a front surface and a rear surface opposite to the front surface, the front surface of the threading plate body is provided with double-specification wire holes, the rear surface of the threading plate body is provided with a first protection structure, and the first protection structure is opposite to the double-specification wire holes in position; the double-specification wire hole comprises a first single-core wire threading hole and a multi-core wire threading hole which are coaxially nested, and the diameter of the first single-core wire threading hole is smaller than that of the multi-core wire threading hole. Therefore, one threading plate can be used for threading a single-core wire and also can be used for threading a double-core wire. The multi-core wire threading device is suitable for cables of various sizes, can be used for threading multi-core wires and single-core wires, and is adaptive to application environments of different cables in different countries. One threading plate can be matched with various types of machines, the complexity of materials is integrally reduced, the space is saved, the wiring modes are diversified, the functionality is higher, and the cost is reduced.

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Description

Technical Field

[0001] The utility model belongs to the technical field of electrical control equipment, and relates to a threading plate compatible with cable sizes of various specifications, and is applied to power electronic equipment such as photovoltaic inverters, junction boxes, and distribution cabinets. Background Art

[0002] With the advancement of electronic technology and market needs, inverter equipment is adapting to more and more components, so the specifications of multi-core and single-core wires are also increasing. First, different countries and regions use different cable specifications, which leads to different sealing solutions that need to be adapted, and the cost is greatly increased. Secondly, for outdoor use of photovoltaic inverters, the equipment needs to be fully sealed, and the sealing solutions of existing cables are relatively simple, and it is impossible to reflect the application of two cable specifications on one product. Finally, the overall size of the inverter of the application product will affect the overall size of the equipment sealing solution, and there are also challenges in terms of adaptation. Utility Model Content

[0003] The utility model aims to provide a threading plate which can meet two sealing modes within a limited size and is compatible with cable sizes of multiple specifications.

[0004] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: a threading plate compatible with various cable sizes, comprising a threading plate body, the threading plate body having a front surface and a rear surface opposite to the front surface, a double-specification wire hole is arranged on the front surface of the threading plate body, a first protective structure is arranged on the rear surface of the threading plate body, and the first protective structure is opposite to the double-specification wire hole;

[0005] The double-specification wire hole includes a first single-core wire threading hole and a multi-core wire threading hole coaxially nested, and the diameter of the first single-core wire threading hole is smaller than that of the multi-core wire threading hole, so that one threading plate can be used for threading both single-core wires and double-core wires.

[0006] Preferably, the first protection structure comprises a first single-core wire protection platform and a multi-core wire protection platform coaxially nested, the first single-core wire protection platform corresponds to the position of the first single-core wire threading hole, and the multi-core wire protection platform corresponds to the position of the multi-core wire threading hole.

[0007] Preferably, the first single-core wire protection platform and the multi-core wire protection platform have the same protrusion direction and are both hollow structures.

[0008] Preferably, the surface of the first single-core wire threading hole is provided with a first tearing edge structure for sealing the threading hole, and the surface of the multi-core wire threading hole is provided with a second tearing edge structure for sealing the threading hole.

[0009] Preferably, the first tearing edge structure and the second tearing edge structure are both double-circle structures, and the first tearing edge structure and the second tearing edge structure are coaxially arranged; the first tearing edge structure comprises a first arc-shaped protrusion arranged on the inner circle and a first protective layer arranged on the outer circle; the second tearing edge structure comprises a second arc-shaped protrusion arranged on the inner circle and a second protective layer arranged on the outer circle;

[0010] The second arc-shaped protrusion and the first single-core wire protection platform are an integrated structure;

[0011] When the first single-core threading hole needs to be used, the first arc-shaped convex piece is torn off, and the single-core wire passes through the first single-core threading hole, the first single-core wire protection platform and the multi-core wire protection platform in sequence;

[0012] When the multi-core wire threading hole needs to be used, the second arc-shaped convex piece, the first arc-shaped convex piece and the first single-core wire protection platform are torn off, and the multi-core wire passes through the double-core wire threading hole and the multi-core wire protection platform in sequence.

[0013] Preferably, the thickness of the second arc-shaped protrusion is greater than the thickness of the first arc-shaped protrusion.

[0014] Preferably, the arc-shaped openings of the first arc-shaped protrusion and the second arc-shaped protrusion are arranged opposite to each other, so as to reduce the stress of the coaxial threading hole.

[0015] Preferably, the front surface of the threading plate body is further provided with a second single-core wire threading hole and a fine wire threading hole, which are distributed around the double-specification wire hole.

[0016] Preferably, a third tearing edge structure is provided on the second single-core wire threading hole, and the third tearing edge structure comprises a third arc-shaped protruding piece provided on the inner circle and a third protective layer provided on the outer circle thereof;

[0017] The rear surface of the threading plate body is provided with a second single-core wire protection platform which is opposite to the second single-core wire threading hole.

[0018] Preferably, the fine-wire threading hole is provided with a fourth tearing edge structure, and the fourth tearing edge structure comprises an annular convex piece arranged on the inner circle and a fourth protective layer arranged on the outer circle thereof;

[0019] The rear surface of the threading plate body is provided with a thin wire protection platform which is opposite to the position of the thin wire threading hole.

[0020] The beneficial effects brought by the utility model are: it is suitable for cables of various sizes, can pass both multi-core wires and single-core wires, and is adapted to the application environments of different cables in different countries. One threading plate can match a variety of models, which reduces the complexity of materials as a whole, saves space, and has various wiring methods, stronger functionality, and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a schematic diagram of the structure of a threading plate compatible with multiple cable sizes of the utility model;

[0022] Figure 2 This is a schematic structural diagram from another perspective of a threading plate compatible with cables of various sizes according to the utility model;

[0023] Figure 3 for Figure 1 A schematic cross-sectional structure diagram of;

[0024] Figure 4 A schematic diagram of the structure for tearing off the edge of a single-core cable;

[0025] Figure 5 A schematic diagram of the structure for tearing off the edge of a multi-core cable;

[0026] Figure 6 This is a third-view structural diagram of a threading plate compatible with multiple cable sizes of the utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the utility model applied to an inverter;

[0028] Figure 8 This is a schematic diagram of the structure of inserting a multi-core cable when the utility model is applied to an inverter;

[0029] Fig. 9 This is a structural schematic diagram of inserting a single-core cable when the utility model is applied to an inverter.

[0030] Among them, 1-threading plate body, 2-first single-core wire threading hole, 21-first single-core wire protection platform, 3-multi-core wire threading hole, 31-multi-core wire protection platform, 4-fine wire threading hole, 5-first tear edge structure, 51-first arc-shaped protrusion, 52-first protective layer, 6-second tear edge structure, 61-second arc-shaped protrusion, 62-second protective layer, 7-second single-core wire threading hole, 8-third tear edge structure, 81-third arc-shaped protrusion, 82-third protective layer, 9-fourth tear edge structure, 10-fine wire protection platform, 11-second single-core wire protection platform. DETAILED DESCRIPTION

[0031] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] The utility model provides a threading plate compatible with various cable sizes, such as Figure 1As shown, the threading plate body 1 includes a threading plate body 1, which is a hollow square plate, having a front surface and a rear surface corresponding to the front surface, and a single-core wire threading hole 2, a multi-core wire threading hole 3 and a fine wire threading hole 4 are arranged on the front surface, so that it can be suitable for cables of various sizes, thereby improving its practicality.

[0033] Specifically, Figures 1 to 3 As shown, the front surface of the threading plate body 1 is provided with a multi-core threading hole 3, and the single-core threading hole 2 and the multi-core threading hole 3 are coaxially nested to form a double-specification thread hole. Figure 3 As shown, a hollow multi-core wire protection platform 31 is provided on the opposite side of the multi-core wire threading hole 3, and a first single-core wire protection platform 21 is coaxially embedded inside the multi-core wire protection platform, and the protrusion direction of the multi-core wire protection platform 31 and the first single-core wire protection platform 21 are consistent. Preferably, a second single-core wire threading hole 7 and a fine-wire threading hole 4 are also provided on the threading plate body 1, and the second single-core wire threading hole 7 and the fine-wire threading hole 4 are distributed around the double-specification wire hole, and a second single-core wire protection platform 11 opposite to the second single-core wire threading hole 7 is provided on the rear surface of the threading plate body 1. When a single-core wire needs to be threaded, the single-core wire is passed through the second single-core wire threading hole 7, passes through the second single-core wire protection platform 11, and passes out from the rear of the threading plate body 1. When a fine wire needs to be threaded, the fine wire is passed through the fine-wire threading hole 4, passes through the fine-wire protection platform 10, and passes out from the rear of the threading plate body 1. A protective platform of corresponding size is set on the back of each threading hole, which corresponds to the threading hole on the front. The threading hole and the protective platform are combined to achieve a double-layer protection effect.

[0034] The multi-core wire protection platform 31, the first single-core wire protection platform 21, the second single-core wire protection platform 11 and the thin wire protection platform 10 are all hollow structures, and their frames are made of rigid materials to ensure the rigidity and sealing when screwed. The locking method is screw locking, and the threading plate is screwed to the outer surface of the cabinet or shell, which can make the equipment have an IP66 (INGRESS PROTECTION) protection level. Each threading hole is sealed by tearing the edge, and the tearing edge corresponding to the threading hole can be torn open when using it.

[0035] Furthermore, if Figure 2 As shown, a blind hole is also provided on the rear surface of the threading plate body 1, and the shape of the blind hole can be circular, square or other shapes, which is selected according to the surface area of the threading plate body 1. The blind hole is provided to reduce the stress between the upper and lower middle circles, so that the cable can be better passed through.

[0036] Specifically, regarding the double-gauge wire holes, such as Figure 1 , 4As shown in Figures 5 and 6, the surface of the first single-core wire threading hole 2 is provided with a first tearing edge structure for sealing the threading hole, and the surface of the multi-core wire threading hole 3 is provided with a second tearing edge structure for sealing the threading hole. The first tearing edge structure and the second tearing edge structure are both double-circle structures, and the first tearing edge structure and the second tearing edge structure are coaxially arranged. The first tearing edge structure includes a first arc-shaped protrusion 51 arranged on the inner circle and a first protective layer 52 arranged on its outer circle; the second tearing edge structure includes a second arc-shaped protrusion 61 arranged on the inner circle and a second protective layer 62 arranged on its outer circle; the second arc-shaped protrusion 62 is an integral structure with the first single-core wire protection platform 21. The first protective layer 52 and the second protective layer 62 are both annular structures with a certain thickness, and are arranged on the edges of their respective corresponding threading holes. The first protective layer 52 and the second protective layer 62 are provided to better protect the integrity of the corresponding threading holes. After the arc-shaped protrusion is torn off, there is still a thicker protective layer on the outer circle, which can provide better wrapping and avoid damage to the threading holes during the tearing off of the arc-shaped protrusion. The protective layer and the protective platform form a double-layer protective structure to protect the cables.

[0037] In this embodiment, see Figure 7 , is the structure of the threading plate of this embodiment applied to the photovoltaic inverter, Figure 8-9 The multi-core threading and single-core threading of the threading board of this embodiment are illustrated respectively. When the multi-core threading hole needs to be used, the second arc-shaped protrusion 62 is torn off, together with the first arc-shaped protrusion 51 and the first single-core wire protection platform 21, and the multi-core wire passes through the multi-core threading hole 3 and the multi-core wire protection platform 31 in sequence. When the first single-core threading hole 2 needs to be used, the first arc-shaped protrusion 51 is torn off, and the single-core wire passes through the first single-core threading hole 2, the first single-core wire protection platform 21 and the multi-core wire protection platform 31 in sequence. Preferably, the thickness of the second arc-shaped protrusion 61 is greater than the thickness of the first arc-shaped protrusion 51. When tearing off the second arc-shaped protrusion 61, the first arc-shaped protrusion 51 and the first single-core threading hole 2 should be torn off together, and the required tearing force should be greater. The second arc-shaped protrusion 61 has a larger thickness, which is easier to tear and not easy to tear off. In order to adapt to the requirements of photovoltaic inverters of different models or sizes and cables used in different countries, the first single-core threading hole 2 and the multi-core threading hole 3 are in the coaxial direction, and both must have double-layer protection, that is, a double-layer structure consisting of a protective layer and a protective platform, and both coaxial threading methods must be able to meet the requirements of tearing edge threading.

[0038] Furthermore, in this embodiment, the arc openings of the first arc-shaped protrusion 51 and the second arc-shaped protrusion 61 are arranged opposite to each other. The purpose of such arrangement is to reduce the stress of the coaxial threading hole. Specifically, the surface of the threading plate is made of plastic material, and the frame around it is made of rigid material, and the frame has a certain width. The surface of the threading plate and the frame are integrally formed, so that it can be installed in one step without complicated installation steps. The plastic material has a certain elasticity and can expand within a certain range, so as to ensure that the outer diameter of the cable within a certain range can be protected.

[0039] The advantage of the utility model is that it can pass both multi-core wires and single-core wires, and is suitable for different cable application environments in different countries. At the same time, in order to adapt to on-site applications, each threading hole is provided with a tearing edge structure, which is convenient and quick, and does not require secondary operation. For cables with different outer diameters, the tearing edge structure is a layer of protection, and the protective platform provided on the rear surface of the threading plate body 1 is another layer of protection.

[0040] In this embodiment, the single-core wire threading hole 2 can be used not only for a plurality of single-core wires, but also for multi-core wires whose wire diameters are within the diameter range of the single-core cable hole 2 .

[0041] The utility model can be applied to various types of photovoltaic inverters. Figure 7 The figure shows one of the example inverter models. Using this wire guide plate, the cable specifications of various inverter models can range from 70mm to 2 -400 mm 2 The threading protection of single-core cables and multi-core cables. One threading plate can match a variety of models, which reduces the complexity of materials and saves space. It also has various wiring methods, stronger functionality and reduces costs.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A threading plate compatible with various cable sizes, comprising a threading plate body, characterized in that: The threading plate body has a front surface and a rear surface opposite to the front surface. A double-specification wire hole is arranged on the front surface of the threading plate body, and a first protective structure is arranged on the rear surface of the threading plate body. The first protective structure is opposite to the double-specification wire hole; the double-specification wire hole includes a first single-core wire threading hole and a multi-core wire threading hole coaxially nested, and the diameter of the first single-core wire threading hole is smaller than that of the multi-core wire threading hole.

2. A threading plate compatible with various cable sizes as claimed in claim 1, characterized in that: The first protection structure includes a first single-core wire protection platform and a multi-core wire protection platform coaxially nested, the first single-core wire protection platform corresponds to the position of the first single-core wire threading hole, and the multi-core wire protection platform corresponds to the position of the multi-core wire threading hole.

3. A threading plate compatible with various cable sizes as claimed in claim 2, characterized in that: The protrusion directions of the first single-core wire protection platform and the multi-core wire protection platform are consistent and both are hollow structures.

4. A threading plate compatible with various cable sizes as claimed in claim 2, characterized in that: The surface of the first single-core wire threading hole is provided with a first tearing edge structure for sealing the threading hole, and the surface of the multi-core wire threading hole is provided with a second tearing edge structure for sealing the threading hole.

5. A threading plate compatible with various cable sizes as claimed in claim 4, characterized in that: The first tearing edge structure and the second tearing edge structure are both double-circle structures, and the first tearing edge structure and the second tearing edge structure are coaxially arranged; the first tearing edge structure includes a first arc-shaped protrusion arranged on the inner circle and a first protective layer arranged on the outer circle; the second tearing edge structure includes a second arc-shaped protrusion arranged on the inner circle and a second protective layer arranged on the outer circle; The second arc-shaped protrusion and the first single-core wire protection platform are an integrated structure; When the first single-core threading hole needs to be used, the first arc-shaped convex piece is torn off, and the single-core wire passes through the first single-core threading hole, the first single-core wire protection platform and the multi-core wire protection platform in sequence; When the multi-core wire threading hole needs to be used, the second arc-shaped convex piece, the first arc-shaped convex piece and the first single-core wire protection platform are torn off, and the multi-core wire passes through the multi-core wire threading hole and the multi-core wire protection platform in sequence.

6. A threading plate compatible with various cable sizes as claimed in claim 5, characterized in that: The thickness of the second arc-shaped protrusion is greater than the thickness of the first arc-shaped protrusion.

7. A threading plate compatible with various cable sizes as claimed in claim 6, characterized in that: The arc-shaped openings of the first arc-shaped protrusion and the second arc-shaped protrusion are arranged opposite to each other.

8. A threading plate compatible with various cable sizes as claimed in claim 1, characterized in that: The front surface of the threading plate body is also provided with a second single-core wire threading hole and a fine wire threading hole, which are distributed around the double-specification wire hole.

9. A threading plate compatible with various cable sizes as claimed in claim 8, characterized in that: The second single-core wire threading hole is provided with a third tearing edge structure, and the third tearing edge structure includes a third arc-shaped protruding piece arranged on the inner circle and a third protective layer arranged on the outer circle thereof; The rear surface of the threading plate body is provided with a second single-core wire protection platform which is opposite to the second single-core wire threading hole.

10. A threading plate compatible with various cable sizes as claimed in claim 8, characterized in that: The fine-wire threading hole is provided with a fourth tearing edge structure, and the fourth tearing edge structure comprises an annular convex piece arranged on the inner circle and a fourth protective layer arranged on the outer circle thereof; The rear surface of the threading plate body is provided with a thin wire protection platform which is opposite to the position of the thin wire threading hole.