Photovoltaic ground wire with ground wire nose not easy to break
By designing the collar and anti-disengagement mechanism in the photovoltaic grounding wire, the problem of easy dissection of the wiring nose and the wire core is solved, and a firmer connection and longer service life is achieved.
Patent Information
- Application Number
- CN202421797291.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-29
AI Technical Summary
The wiring nose of the existing photovoltaic grounding wire is prone to fall off and not firm during the connection process, and the use of too large a clamping tool may cause the wire core to be broken.
A photovoltaic grounding wire including cable, wire nose, anti-disassembly mechanism and ring is designed. By twisting the sleeve and nut, the sleeve clamps the outer sleeve of the cable, enhancing the connection between the wire nose and the cable; the anti-disconnection mechanism provides additional reinforcement through the fit of the nut and thread groove to prevent the wire nose from falling off.
It effectively enhances the firmness of the connection between the wire nose and the cable, prevents the wire nose from falling off, and avoids the risk of wire core clamping, and improves the service life of the grounding wire.
Smart Images
Figure CN222839121U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of photovoltaic grounding wires, in particular to a photovoltaic grounding wire with a grounding wire nose that is not easily broken. Background Art
[0002] Photovoltaic systems are usually installed outdoors, directly exposed to weather changes, and are therefore vulnerable to lightning strikes. Grounding wires can lead the huge current generated by lightning into the ground, reducing damage to photovoltaic modules and electrical equipment.
[0003] At the same time, in a photovoltaic system, if an insulation failure occurs and causes current to leak to the equipment casing or other accessible metal parts, the grounding wire can quickly direct the leakage current to the ground to prevent electric shock accidents.
[0004] When connecting the ground wire in a photovoltaic system, a wiring nose is required to facilitate the connection of the circuit.
[0005] Although the prior art has solved certain problems, it still has the following disadvantages:
[0006] (1) In the prior art, when connecting a wiring lug to a cable, the wiring lug is generally connected to the cable by soldering the copper wire core of the cable and the wiring lug. However, the wiring lug is only connected to the wire core of the cable by soldering, and the wiring lug is easy to fall off and is not firm enough.
[0007] (2) In the prior art, when connecting the wiring lug to the bottom line cable, a clamping tool is used to clamp the wiring lug and the wire core of the cable together. If the clamping force is too large, the wiring lug may easily break the wire core of the cable, thus affecting the use of the cable. Utility Model Content
[0008] The utility model aims to provide a photovoltaic grounding wire with a grounding wire nose that is not easily broken.
[0009] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:
[0010] A photovoltaic grounding wire with a grounding wire nose that is not easy to break, comprising:
[0011] A cable, the cable comprising a wire core and a ground wire sleeve, wherein the wire cores are evenly distributed and arranged together;
[0012] A wire nose, the wire nose is sleeved on both ends of the outer side of the ground wire sleeve, and a collar is fixedly connected to one end of the outer side of the wire nose close to the cable, the outer diameter of the collar decreases as it gets closer to the cable, and the inner side of the collar is a uniform cylindrical shape;
[0013] An anti-slip mechanism is provided between the wire nose and the cable, and comprises a thread groove, a movable slot hole and a nut. The thread groove is provided on the outer side wall of the collar, and a number of movable slot holes are evenly distributed and provided on the outer side of the collar away from the end of the wire nose. The nut is sleeved on the outer side of the collar, the nut is threadably connected to the thread groove, and the outer side of the collar is adapted to the inner side of the nut.
[0014] Furthermore, the ground wire sleeve is sleeved on the outside of the wire core.
[0015] Furthermore, the wire nose is electrically connected to the wire core via solder.
[0016] Furthermore, the interior of the nut is also gradually reduced in the same direction as the exterior of the collar.
[0017] Furthermore, the ground wire sleeve is made of polyethylene.
[0018] The utility model provides a photovoltaic grounding wire whose grounding wire nose is not easy to break, and has the following beneficial effects:
[0019] (1) The ferrule is tightened by twisting the nut, and the ferrule clamps the outer wire sleeve of the cable to strengthen the connection between the wire nose and the cable. In addition to soldering the wire nose on the outside of the cable to connect it to the wire core of the cable, it is also reinforced by the ferrule and the wire sleeve of the cable to prevent the wire nose and the cable from detaching.
[0020] (2) The two ends of the cable are clamped by the ring between the ring and the nut to reinforce the connection between the wire nose and the cable. The wire nose does not need to clamp the wire core inside the cable, and the wire nose is not easy to damage the wire core. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.
[0022] Figure 1 The utility model is a three-dimensional photovoltaic grounding wire with a grounding wire nose that is not easy to break. Figure 1 .
[0023] Figure 2 The utility model is a three-dimensional photovoltaic grounding wire with a grounding wire nose that is not easy to break. Figure 2 .
[0024] Figure 3 The utility model is a three-dimensional magnification of the partial structure of a photovoltaic grounding wire whose grounding wire nose is not easy to break. Figure 1 .
[0025] Figure 4 The utility model is a three-dimensional magnification of the partial structure of a photovoltaic grounding wire whose grounding wire nose is not easy to break. Figure 2 .
[0026] Figure 5 The utility model is a three-dimensional magnification of the partial structure of a photovoltaic grounding wire whose grounding wire nose is not easy to break. Figure 3 .
[0027] Figure 6 The utility model is a three-dimensional magnification of the partial structure of a photovoltaic grounding wire whose grounding wire nose is not easy to break. Figure 4 .
[0028] Markings in the figure: 1, cable; 101, wire core; 102, ground wire sleeve; 2, wire nose; 3, anti-slip mechanism; 301, thread groove; 302, movable slot hole; 303, nut; 4, ring. DETAILED DESCRIPTION
[0029] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.
[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] Embodiment 1:
[0032] like Figures 1 to 6 As shown, this embodiment provides a photovoltaic grounding wire with a grounding wire nose that is not easy to break, including a cable 1, a wire nose 2, an anti-slip mechanism 3 and a ring 4.
[0033] Among them, cable 1 is used as the photovoltaic grounding wire. Cable 1 is composed of several evenly distributed copper cores 101 evenly distributed and arranged in a cylindrical shape. These cores 101 are wrapped by a ground wire sleeve 102 made of polyethylene material on the outside to form a photovoltaic grounding cable 1. Wire noses 2 are sleeved on both ends of the outside of the cable 1. The wire noses 2 are sleeved on both ends of the cable 1, and the wire cores 101 and the wire noses 2 are connected by soldering, so that the circuit between the cable 1 and the wire noses 2 can be connected.
[0034] A ring 4 is fixedly connected to the end of the wire nose 2 that is sleeved on both ends of the cable 1, and the outer diameter of the ring 4 becomes smaller as it is closer to the cable 1. A nut 303 is sleeved on the outside of the ring 4, and the inner diameter of the nut 303 also changes with the change of the outer diameter of the ring 4, and the inner diameter becomes smaller as it is closer to the cable 1. A thread groove 301 is opened on the outside of the ring 4, and the nut 303 and the thread groove 301 are threadedly connected together. By rotating the nut 303, the nut 303 rotates toward the direction of the wire nose 2 in cooperation with the thread groove 301. At the same time, since the outer diameter of the ring 4 is variable, the ring 4 will be tightened when the nut 303 rotates.
[0035] However, when the ferrule 4 is tightened by the nut 303, in order to offset the extrusion deformation of the ferrule 4, a number of evenly distributed movable slots 302 are opened at the end of the ferrule 4 away from the wire nose 2, providing space for the deformation of the ferrule 4, allowing the ferrule 4 to shrink and clamp the outside of the ground wire sleeve 102, thereby reinforcing the wire nose 2 on the outside of the cable 1 and preventing the wire nose 2 from falling off from both ends of the cable 1.
[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A photovoltaic grounding wire with a grounding wire nose that is not easy to break, characterized by: include: A cable (1), the cable (1) comprising a wire core (101) and a ground wire sleeve (102), wherein a plurality of the wire cores (101) are evenly distributed and arranged together; A wire nose (2), the wire nose (2) being sleeved on both ends of the outside of the ground wire sleeve (102), the end of the outside of the wire nose (2) close to the cable (1) being fixedly connected to a collar (4), the outer diameter of the collar (4) decreasing as it approaches the cable (1), and the inside of the collar (4) being a uniform cylindrical shape; An anti-slip mechanism (3) is provided between the cable nose (2) and the cable (1), and comprises a thread groove (301), a movable slot hole (302) and a nut (303). The thread groove (301) is provided on the outer side wall of the collar (4), and a plurality of movable slot holes (302) are evenly distributed and provided on the outer side of the collar (4) away from the end of the cable nose (2). The nut (303) is sleeved on the outer side of the collar (4), the nut (303) is threadedly connected to the thread groove (301), and the outer side of the collar (4) is adapted to the inner side of the nut (303).
2. A photovoltaic grounding wire with a grounding wire nose that is not easy to break according to claim 1, characterized in that: The ground wire sleeve (102) is sleeved on the outside of the wire core (101).
3. A photovoltaic grounding wire with a grounding wire nose that is not easy to break according to claim 1, characterized in that: The wire nose (2) is electrically connected to the wire core (101) via solder.
4. The photovoltaic grounding wire with a grounding wire nose that is not easy to break according to claim 1, characterized in that: The interior of the nut (303) is also gradually reduced in size in the same direction as the exterior of the collar (4).
5. The photovoltaic grounding wire with a grounding wire nose that is not easy to break according to claim 1, characterized in that: The ground wire sleeve (102) is made of polyethylene.