Photovoltaic module wiring device for photovoltaic power generation

Abstract

The utility model discloses a photovoltaic module wiring device for photovoltaic power generation, which belongs to the technical field of photovoltaic power generation and comprises a wiring box, a wire is electrically connected onto the wiring box, an insulating cylinder is arranged at the end of the wire connected with the wiring box, a restraining device for limiting the wire is arranged on the wire, the restraining device comprises a base, and the base is arranged on the base. The device comprises a base, two symmetrically arranged semicircular fixing rings are arranged on the base, adjusting screws are in threaded connection with the side faces, away from each other, of the semicircular fixing rings, arc-shaped pressing plates are rotationally arranged at the ends, extending into the semicircular fixing rings, of the adjusting screws, a wire is arranged between the two semicircular fixing rings, and then a rotary knob is rotated to enable a bidirectional screw to rotate. The movable sleeves are driven to get close to each other to preliminarily position the wire, then the adjusting screw rod is rotated, the arc-shaped pressing plate does linear motion under the limiting of the limiting rod, rotation of the arc-shaped pressing plate is avoided, and therefore the wire is restrained, and the situation that the wire is pulled out easily due to external force factors to cause disconnection is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic power generation technical field, specifically point to a kind of photovoltaic module wiring device for photovoltaic power generation. BACKGROUND

[0002] Photovoltaic power generation is a kind of technology using the photovoltaic effect of semiconductor interface to convert light energy into electric energy, mainly consisting of solar panel, controller and inverter three parts, and the main role of photovoltaic module wiring device is to connect the DC cable between photovoltaic modules safely and reliably together, so as to transmit photovoltaic power to inverter or other system components. Photovoltaic technology has many advantages: such as no mechanical operating parts; except for sunshine, no other "fuel" is needed, and it can work under direct and oblique sunlight; and from the selection of site, it is very convenient and flexible, and city roof, open space can be applied. Solar photovoltaic effect is applied in the energy supply field of space satellite in the form of solar cell for the first time, and up to now, from small automatic parking meter power supply, roof solar panel to large solar power generation center, its application in power generation field has spread all over the world.

[0003] Photovoltaic power generation is usually installed in complex outdoor environment, and photovoltaic cable is easily affected by interference factors such as wind or bird activity to produce vibration or impact. The existing photovoltaic module wiring device for photovoltaic power generation has insufficient constraint force on wire during wiring, and under the influence of these factors, cable displacement occurs for a long time, causing connection at wiring place to be loose, leading to disconnection, thereby affecting the normal operation of photovoltaic module. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem that the existing photovoltaic module wiring device for photovoltaic power generation has insufficient constraint force on wire during wiring, and is prone to loose and disconnection, thereby affecting the normal operation of photovoltaic module.

[0005] The utility model provides a technical scheme for solving above -mentioned technical problem, photovoltaic module wiring device for photovoltaic power generation, including junction box, electric connection has the wire on the junction box, the end of wire and junction box connection is equipped with insulating cylinder, be equipped with the restraint device that the wire is limited to its own, the restraint device includes the base, be equipped with two symmetrical half circle fixed ring of setting on the base, be equipped with the moving device of moving half circle fixed ring in the base, the side of half circle fixed ring away from each other all are screw -threaded with adjusting screw rod, the one end of adjusting screw rod extension into half circle fixed ring all rotationally equipped with arc pressing plate, rotationally be equipped with the locating disc on adjusting screw rod, be equipped with two limit rods that are relative to adjusting screw rod symmetrical setting between locating disc and abutting plate, limit rod passes through half circle fixed ring and is rotationally connected with arc pressing plate, the side of arc pressing plate and half circle fixed ring opposite all are equipped with a plurality of springs.

[0006] As a further scheme of the utility model, the moving device includes a bidirectional screw rod rotationally arranged in the base, two symmetrically arranged moving sleeves are screw-connected to the bidirectional screw rod, connecting rods are arranged on the moving sleeves, a moving groove is arranged on the base to allow the connecting rods to pass through, and one end of each connecting rod extending out of the moving groove is connected to one of the two half circle fixed rings.

[0007] As a further scheme of the utility model, the junction box is provided with a reinforcing device, the reinforcing device includes two rotating rings symmetrically arranged on the junction box, the rotating rings are respectively arranged on the two sides of the wire connection end of the junction box, a fixing sleeve is arranged on the insulating cylinder, hooks matched with the rotating rings are arranged on the fixing sleeve, and tension springs are arranged between the hooks and the fixing sleeve.

[0008] As a further scheme of the utility model, the half circle fixed rings are each provided with a connecting plate at the upper end, and the connecting plates are connected by a fastening bolt and a nut.

[0009] As a further scheme of the utility model, the moving sleeves are each provided with a sliding block at the lower end, and a sliding groove is arranged on the inner bottom surface of the base.

[0010] As a further scheme of the utility model, the side surfaces of the arc pressing plates, which are close to each other, are each provided with a rubber pad.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1、 by setting the constraint device, first put the wire between two semicircle fixed ring, then rotate the knob to make the bidirectional screw rod rotate, drive the moving sleeve to each other close to the wire to carry out preliminary positioning, then rotate the adjusting screw, under the limiting of the limiting rod, make the arc-shaped pressing plate do linear motion, avoid the arc-shaped pressing plate to rotate, thereby constrain the wire, make it unable to easily pull out due to external force factor and produce the disconnected condition;

[0013] 2、 by setting the reinforcing device, after the wire is connected with the junction box, the hook is stretched under the action of the tension spring and hooks the rotating ring, the insulating cylinder is reinforced and connected with the junction box, thereby improving the stability of the connection between the wire and the junction box. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a perspective view of the utility model photovoltaic power generation photovoltaic module wiring device.

[0015] Figure 2 is the A part structure amplification schematic diagram of the utility model photovoltaic power generation photovoltaic module wiring device.

[0016] Figure 3 is the base internal structure schematic diagram of the utility model photovoltaic power generation photovoltaic module wiring device.

[0017] Figure 4 is the B part structure amplification schematic diagram of the utility model photovoltaic power generation photovoltaic module wiring device.

[0018] As shown in the figure: 1, junction box; 2, wire; 3, insulating cylinder; 4, base; 5, semicircle fixed ring; 6, adjusting screw; 7, arc-shaped pressing plate; 8, positioning disc; 9, limiting rod; 10, spring; 11, bidirectional screw rod; 12, moving sleeve; 13, connecting rod; 14, moving groove; 15, knob; 16, rotating ring; 17, fixed sleeve; 18, hook; 19, tension spring; 20, connecting plate; 21, sliding block; 22, sliding slot; 23, rubber pad. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements, the specific meaning of the above terms in the utility model can be understood according to specific conditions for ordinary skilled in the art.

[0021] Combine the attached Figure 1 A kind of photovoltaic module wiring device for photovoltaic power generation, including junction box 1, wire 2 is electrically connected on the junction box 1, the end of wire 2 connected with junction box 1 is equipped with insulating cylinder 3, the wire 2 is equipped with the constraint device for its own limiting, the constraint device includes base 4, the base 4 is equipped with two symmetrical half circle fixed ring 5, the base 4 is equipped with the moving device of moving half circle fixed ring 5, the side of half circle fixed ring 5 away from each other is all screw-connected with adjusting screw 6, the end of adjusting screw 6 extending into half circle fixed ring 5 is all rotationally equipped with arc-shaped pressing plate 7, the side of arc-shaped pressing plate 7 close to each other is all equipped with rubber pad 23, can increase friction and provide anti-skid function, while the surface of wire 2 has certain protection effect.The adjusting screw 6 is rotationally connected with positioning disc 8, the positioning disc 8 and the abutting plate are equipped with two limit rods 9, which are symmetrically arranged relative to adjusting screw 6, the limit rod 9 is rotationally connected with half circle fixed ring 5 and arc-shaped pressing plate 7 and penetrates half circle fixed ring 5, the side opposite between arc-shaped pressing plate 7 and half circle fixed ring 5 is all equipped with several springs 10, under the limiting effect of limit rod 9, arc-shaped pressing plate 7 can be avoided to rotate with adjusting screw 6, so that arc-shaped pressing plate 7 moves stably, and wire 2 is clamped.

[0022] As a further scheme of the utility model, the moving device includes bidirectional screw 11 rotationally arranged in the base 4, the bidirectional screw 11 is screw-connected with two symmetrically arranged moving sleeves 12, the lower surface of moving sleeve 12 is all equipped with sliding block 21, the bottom surface of base 4 is equipped with sliding groove 22, the sliding block 21 is slidably matched with sliding groove 22, and the moving sleeve 12 is limited to avoid rotation, the upper surface of moving sleeve 12 is all equipped with connecting rod 13, the upper surface of base 4 is equipped with moving slot 14 capable of allowing connecting rod 13 to pass through, one end of connecting rod 13 extending out of moving slot 14 is connected with two half circle fixed rings 5 respectively, one end of bidirectional screw 11 extending out of base 4 is all equipped with knob 15, the upper end of half circle fixed ring 5 is all equipped with connecting plate 20, and the connecting plate 20 is connected by fastening bolt and nut.

[0023] As a further scheme of the utility model, the junction box 1 is provided with a reinforcing device, the reinforcing device comprises two rotating rings 16 symmetrically arranged on the junction box 1, the rotating rings 16 are respectively located on the two sides of the connecting end of the wire 2 and the junction box 1, the insulating cylinder 3 is provided with a fixing sleeve 17, the fixing sleeve 17 is provided with a hook 18 matched with the rotating ring 16, the hook 18 and the fixing sleeve 17 are provided with a tension spring 19, the hook 18 is hooked on the rotating ring 16 by stretching the tension spring 19, and then the hook 18 is hooked on the rotating ring 16, so as to reinforce the connection between the wire 2 and the junction box 1.

[0024] In the specific implementation of the utility model, firstly, the wire is connected with the junction box, then the hook is stretched to hook the rotating ring under the action of the tension spring, the insulating cylinder is reinforced and connected with the junction box, so as to improve the stability of the connection between the wire and the junction box, meanwhile, the wire is arranged between the two semicircular fixing rings, then the knob is rotated, the knob drives the bidirectional screw rod to rotate, under the limitation of the sliding block and the sliding groove, the bidirectional screw rod drives the moving sleeve to approach each other and move stably, the wire is preliminarily positioned, after the two semicircular fixing rings are overlapped, the semicircular fixing rings are fixed through the connection of the connecting plate, the bolt and the nut, then a tool (such as a screwdriver) is used to rotate the adjusting screw, under the limitation of the limiting rod, the arc-shaped pressing plate is prevented from rotating, so that the arc-shaped pressing plate moves in a straight line, the wire is clamped and fixed, so that the wire is constrained and cannot be easily pulled out due to external force factors to cause disconnection.

[0025] The utility model and its implementation mode are described above, and the description is not restrictive, and the shown in the drawings is only one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if the ordinary skilled person in the art is inspired thereby, without departing from the creative purpose of the utility model, without creative design, the similar structure mode and the embodiment of the technical scheme, which should belong to the protection scope of the utility model.

Claims

1. A photovoltaic module wiring device for photovoltaic power generation, comprising a junction box (1), wherein a wire (2) is electrically connected to the junction box (1), and an insulating cylinder (3) is provided at the end of the wire (2) connected to the junction box (1), characterized in that: The lead (2) is provided with a constraint device for limiting itself, the constraint device comprises a base (4), the base (4) is provided with two symmetrical half circular fixed rings (5), the base (4) is provided with a moving device for moving the half circular fixed ring (5), the side of the half circular fixed ring (5) away from each other is screw-connected with an adjusting screw rod (6), one end of the adjusting screw rod (6) extending into the half circular fixed ring (5) is rotatably provided with an arc-shaped pressing plate (7), the adjusting screw rod (6) is rotatably connected with a positioning disc (8), the positioning disc (8) and the abutting plate are provided with two limiting rods (9) symmetrical to the adjusting screw rod (6), the limiting rod (9) penetrates the half circular fixed ring (5) and is rotatably connected with the arc-shaped pressing plate (7), and the side of the arc-shaped pressing plate (7) opposite to the half circular fixed ring (5) is provided with a plurality of springs (10).

2. The photovoltaic module wiring device for photovoltaic power generation according to claim 1, characterized by: The moving device comprises a bidirectional screw rod (11) rotatably arranged in the base (4), the bidirectional screw rod (11) is screw-connected with two symmetrical moving sleeves (12), the moving sleeve (12) is provided with a connecting rod (13), the base (4) is provided with a moving groove (14) capable of allowing the connecting rod (13) to pass through, and one end of the connecting rod (13) extending out of the moving groove (14) is connected to the two half circular fixed rings (5) respectively.

3. The photovoltaic module wiring device for photovoltaic power generation according to claim 1, characterized in that: The junction box (1) is provided with a reinforcing device, the reinforcing device comprises two rotating rings (16) symmetrically arranged on the junction box (1), the rotating ring (16) is arranged on the two sides of the lead (2) and the junction box (1) connecting end respectively, the insulating cylinder (3) is provided with a fixed sleeve (17), the fixed sleeve (17) is provided with a hook (18) matched with the rotating ring (16), and the hook (18) and the fixed sleeve (17) are provided with a tension spring (19).

4. The photovoltaic module wiring device for photovoltaic power generation according to claim 1, characterized in that: The half circular fixed ring (5) is provided with a connecting plate (20) at the upper end, and the connecting plates (20) are connected by a fastening bolt and a nut.

5. The photovoltaic module wiring device for photovoltaic power generation according to claim 2, characterized in that: The moving sleeve (12) is provided with a sliding block (21) at the lower end, and the base (4) is provided with a sliding groove (22) at the bottom surface, and the sliding block (21) and the sliding groove (22) are in sliding fit.

6. The photovoltaic module wiring device for photovoltaic power generation according to claim 1, characterized in that: The side of the arc-shaped pressing plate (7) close to each other is provided with a rubber pad (23).

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