New piercing clamp

Abstract

A piercing clamp, which is mounted on a guide rail of a photovoltaic support, comprising a conductive clamp, a sliding block, and a bolt, wherein the conductive clamp is fitted above a sliding groove of the guide rail and used for clamping a grounding wire, two sides of the conductive clamp are each provided with at least one integrally formed spike, the tip of the spike abutting downwards against the upper surface of the guide rail; the sliding block engages with the sliding groove of the guide rail by means of snap fitting; and the bolt passes through the conductive clamp and threadedly connects to the sliding block, and, when the bolt is locked, the spike fits against the upper surface of the guide rail so as to pierce an oxidation film of the guide rail. By integrally forming spikes on sides of a conductive clamp, the production process for the conductive clamp is simplified; moreover, when a bolt is locked, by allowing the spikes to pierce an oxidation film on the surface of a guide rail, the electric connection of the guide rail and the conductive clamp can be achieved, thereby achieving grounding of the guide rail once the conductive clamp clamps the wire; the forming of the spikes no longer requires a needle affixing process, saving on the labor and material costs for needle affixing.

Description

New penetration clip Technical Field

[0001] The present invention relates to the technical field of penetration clamps for photovoltaic systems, in particular to a novel penetration clamp. Background Art

[0002] A photovoltaic power generation system consists of a photovoltaic rack and several solar panels mounted on the rack. These panels are connected in series or parallel to form a photovoltaic array, generating electricity. The metal frames of the solar panels are typically in close contact with the rack, which is then connected to the ground, grounding the panels. If a lightning strike strikes the solar panels during a thunderstorm, the current is diverted to the ground through the metal frames and rack, protecting the photovoltaic array from damage.

[0003] At present, photovoltaic brackets are generally connected to the ground through wires: one end of the wire is connected to the ground, and the other end is fixedly connected to a conductive clip installed on the photovoltaic bracket. In the traditional structure, the conductive clip and the photovoltaic bracket are conductive through surface contact. When a non-conductive medium is mixed into the gap between the two or an oxide layer is generated on the metal surface due to the action of air, poor contact will occur, and even the current cannot be conducted, causing the photovoltaic system to lose its grounding function. The solution of the existing technology is to implant needles on the conductive clip made of copper or aluminum. The needles are located on the contact surface between the conductive clip and the photovoltaic bracket. When the conductive clip is installed, the needles can pierce the oxide layer of the photovoltaic bracket to achieve a conductive connection between the photovoltaic bracket and the wire. The disadvantage is that the needle implantation process is cumbersome and costly.

[0004] Summary of the Invention

[0005] The purpose of the present invention is to provide a new type of penetration clamp to solve the problems existing in the prior art. It has a simple structure, does not require a seeding needle, can be quickly formed, and improves the conductive stability between it and the guide rail of the photovoltaic bracket.

[0006] In order to achieve the above object, the solution of the present invention is:

[0007] A new type of penetration clamp is installed on the guide rail of a photovoltaic bracket, which includes a conductive clip, a slider and a bolt; the conductive clip is fitted above the slide groove of the guide rail and is used to clamp the grounded wire, and at least one spike is integrally formed on both sides of the conductive clip, and the tip of the spike is downwardly abutted against the upper surface of the guide rail; the slider is snap-fitted with the slide groove of the guide rail; the bolt passes through the conductive clip and is threadedly connected to the slider. When the bolt is tightened, the spike is tightly fitted on the upper surface of the guide rail to pierce the oxide film of the guide rail.

[0008] The conductive clip is made of conductive material.

[0009] The spikes are arranged on the side of the conductive clip along an outward and downward slanting direction.

[0010] The spikes are formed on both sides of the conductive clip by a stamping process during the forming process of the conductive clip.

[0011] Two spikes are designed on both sides of the conductive clip.

[0012] The conductive clamp comprises an upper clamping plate and a lower clamping plate of separate design. The upper clamping plate and the lower clamping plate are respectively provided with an upper through hole and a lower through hole for the bolts to pass through. The spikes are provided on both sides of the lower clamping plate.

[0013] Preferably, both ends of the lower surface of the upper clamping plate are recessed to form limiting grooves, and one end of the upper surface of the lower clamping plate is protruded to form a flange corresponding to the position of the limiting groove.

[0014] Preferably, the limiting grooves and flanges are respectively arranged along the width directions of the upper clamping plate and the lower clamping plate.

[0015] Preferably, both ends of the lower clamping plate are bent downward to form positioning edges, and both sides of the positioning edges are gap-matched with the sliding grooves of the guide rail.

[0016] Preferably, both sides of the end portion of the lower clamping plate are bent upward to form positioning protrusions, and the side edges of the upper clamping plate are clearance-matched with the inner sides of the positioning protrusions.

[0017] After adopting the above technical solution, the present invention has the following technical effects:

[0018] ① By integrally forming spikes on the side of the conductive clip, the production process of the conductive clip is simplified. At the same time, when the bolt is tightened, the spikes can pierce the oxide film on the surface of the guide rail, thereby achieving electrical connection between the guide rail and the conductive clip. When the conductive clip clamps the wire, the guide rail can be grounded.

[0019] ② The forming of the spikes no longer requires the needle-planting process, saving the labor and material costs of the needle-planting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a perspective view of a specific embodiment of the present invention;

[0021] FIG2 is an exploded view of a specific embodiment of the present invention;

[0022] FIG3 is a schematic diagram of a specific embodiment of the present invention;

[0023] FIG4 is a cross-sectional view of FIG3;

[0024] Description of Figure Numbers:

[0025] 1----guide rail; 11---slideway; 12---limiting edge;

[0026] 2----conductive clip; 21---upper clamp; 211--upper through hole; 212--limiting groove; 22---lower clamp; 221--spike; 222--lower through hole; 223--flange; 224--positioning edge; 225--positioning protrusion;

[0027] 3----Slider;

[0028] 4----bolts;

[0029] 5----Flat gasket;

[0030] 6----Spring washer.

[0031] DETAILED DESCRIPTION

[0032] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0033] 1 and 2 , the present invention discloses a novel penetrating clip, which is installed on the guide rail 1 of a photovoltaic support (the guide rail 1 forms a non-conductive oxide film on its surface after anodizing), and includes a conductive clip 2, a slider 3, and a bolt 4;

[0034] The conductive clip 2 is fitted over the slide groove 11 of the guide rail 1 and is used to clamp the grounded wire. Both sides of the conductive clip are integrally formed with at least one spike 221, with the tip of the spike 221 facing downward against the upper surface of the guide rail 1.

[0035] The slider 3 is engaged with the slide groove 11 of the guide rail 1 to prevent it from falling out from above the slide groove 11;

[0036] The bolt 4 passes through the conductive clip 2 and is threadedly connected to the slider 3 . When the bolt 4 is tightened, the spike 221 is tightly fitted on the upper surface of the guide rail 1 to pierce the oxide film of the guide rail 1 .

[0037] Specific embodiments of the present invention are shown below.

[0038] The conductive clip 2 is made of a conductive material, which may be a cheap conductive metal such as copper or aluminum.

[0039] The above-mentioned spikes 221 are arranged on the side of the conductive clip 2 in an outward and downward inclined direction. Since the spikes 221 are in an inclined state relative to the upper surface of the guide rail 1, the elasticity of the spikes 221 themselves can be utilized during the process of tightening the bolts 4 to enable the spikes 221 to penetrate the oxide film of the guide rail 1 more tightly.

[0040] The spikes 221 are formed on both sides of the conductive clip 2 by a stamping process during the molding process of the conductive clip 2 accessories, achieving the purpose of integrated connection. In this embodiment, the conductive clip 2 is designed with two spikes 221 on both sides, which can increase the contact points between the conductive clip 2 and the guide rail 1 and improve the stability of the conductive function.

[0041] The conductive clamp 2 comprises a split upper plate 21 and a lower plate 22. The upper plate 21 and the lower plate 22 are respectively provided with an upper through-hole 211 and a lower through-hole 222 for the insertion of the bolt 4. The spikes 221 are disposed on either side of the lower plate 22. The upper and lower plates 21 and 22 cooperate to clamp the conductor. During the tightening of the bolt 4, the conductive clamp 2 is not only secured to the upper surface of the guide rail 1, allowing the spikes 221 to pierce the oxide film of the guide rail 1, but the upper and lower plates 21 and 22 can also be locked to secure the conductor. This means that only a single tightening operation is required, resulting in more efficient assembly.

[0042] Furthermore, both ends of the lower surface of the upper clamping plate 21 are recessed to form a limiting groove 212, and one end of the upper surface of the lower clamping plate 22 is protruded to form a flange 223 corresponding to the position of the limiting groove 212; when the limiting groove 212 cooperates with the flat upper surface of the lower clamping plate 22, it can position and clamp wires with larger wire diameters, and when the limiting groove 212 cooperates with the flange 223, it can position and clamp wires with smaller wire diameters, thereby solving the problem that the penetration clamp of the prior art cannot be used to install wires of small and large wire diameters, and is suitable for wires of various wire diameters. In this embodiment, the limiting groove 212 and the flange 223 are respectively formed on the upper clamping plate 21 and the lower clamping plate 22 by a stamping process, so that the surfaces of the upper clamping plate 21 and the lower clamping plate 22 present a concave and convex tortuous structure; the limiting groove 212 and the flange 223 are respectively arranged along the width direction of the upper clamping plate 21 and the lower clamping plate 22.

[0043] Secondly, both ends of the above-mentioned lower clamping plate 22 are bent downward to form positioning edges 224. The width of the positioning edges 224 is approximately equal to the width of the slide groove 11 of the guide rail 1, so that the two sides of the positioning edges 224 are gap-matched with the slide groove 11 of the guide rail 1. When the conductive clip 2 is installed in the guide rail 1, the lower clamping plate 22 can automatically adapt to the slide groove 11 through its positioning edges 224, avoiding the conductive clip 2 from rotating during the tightening of the bolt 4, thereby ensuring that the spikes 221 are in contact with the upper surface of the guide rail 1.

[0044] At the same time, both sides of the end of the above-mentioned lower splint 22 are bent upward to form positioning protrusions 225, and the spacing between the positioning protrusions 225 at the same end is approximately equal to the width of the upper splint 21, so that after the upper splint 21 is placed on the upper surface of the lower splint 22, the side edges of the upper splint 21 and the inner clearance of the positioning protrusions 225 can be matched, which can realize the installation limit of the upper splint 21 on the upper surface of the lower splint 22, thereby achieving the purpose of quick installation.

[0045] The slider 3 is a Z-shaped block, and the slider 3 cooperates with the limiting edge 12 of the side wall of the slide groove 11 to achieve the clamping fit between the slider 3 and the guide rail 1. The limiting edge 12 can prevent the slider 3 from falling out from the top of the slide groove 11.

[0046] The present invention also includes a flat washer 5 and a spring washer 6 that are sequentially matched on the upper surface of the conductive clip 2. The bolt 4 is sequentially passed through the spring washer 6, the flat washer 5, and the conductive clip 2 and then threadedly connected to the slider 3. The flat washer 5 and the spring washer 6 play a buffering and protective role.

[0047] Through the above scheme, the present invention simplifies the production process of the conductive clip 2 by integrally forming the spike 221 on the side of the conductive clip 2. At the same time, when the bolt 4 is tightened, the spike 221 can pierce the oxide film on the surface of the guide rail 1, thereby playing the role of electrical connection between the guide rail 1 and the conductive clip 2. Then, when the conductive clip 2 clamps the wire, the guide rail 1 can be grounded; the formation of the spike 221 no longer requires a needle planting process, saving the labor and material costs of the needle planting.

[0048] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A new type of penetration clip, installed on the rail of a photovoltaic bracket, characterized by: Including conductive clips, sliders and bolts; The conductive clip is fitted above the slide slot of the guide rail and is used to clamp the grounded wire, and at least one spike is integrally formed on both sides of the conductive clip, and the tip of the spike abuts against the upper surface of the guide rail downward; The sliding block is engaged with the sliding groove of the guide rail; The bolt passes through the conductive clip and is threadedly connected to the slider. When the bolt is tightened, the spike is tightly fitted on the upper surface of the guide rail to pierce the oxide film of the guide rail.

2. The novel penetration clip according to claim 1, characterized in that: The conductive clip is made of conductive material.

3. The novel penetration clip according to claim 1, characterized in that: The spikes are arranged on the side of the conductive clip along a direction inclined outward and downward.

4. The novel penetration clip according to claim 1, characterized in that: The spikes are formed on both sides of the conductive clip by a stamping process during the forming process of the conductive clip.

5. The novel penetration clip according to claim 1 is characterized in that: Two spikes are designed on both sides of the conductive clip.

6. The novel penetration clamp according to any one of claims 1 to 5, characterized in that: The conductive clamp comprises an upper clamping plate and a lower clamping plate of separate design, wherein the upper clamping plate and the lower clamping plate are respectively provided with an upper through hole and a lower through hole for the bolts to pass through, and the spikes are arranged on both sides of the lower clamping plate.

7. The novel penetration clip according to claim 6, characterized in that: Both ends of the lower surface of the upper clamping plate are recessed to form limiting grooves, and one end of the upper surface of the lower clamping plate is protruded to form a flange corresponding to the position of the limiting groove.

8. The novel penetration clip according to claim 7, characterized in that: The limiting grooves and flanges are respectively arranged along the width directions of the upper clamping plate and the lower clamping plate.

9. The novel penetration clip according to claim 6, characterized in that: Both ends of the lower clamping plate are bent downward to form positioning edges, and both sides of the positioning edges are gap-matched with the sliding grooves of the guide rails.

10. The novel penetration clip according to claim 6, characterized in that: Both sides of the end of the lower clamping plate are bent upward to form positioning protrusions, and the side edges of the upper clamping plate are clearance-matched with the inner sides of the positioning protrusions.

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