A photovoltaic multifunctional circuit breaker convenient to install

Abstract

The utility model relates to the technical field of circuit breaker discloses a photovoltaic multifunctional circuit breaker convenient to installation, including circuit breaker, the fixed hole is all set up in four corners of circuit breaker, both ends of circuit breaker are provided with mounting mechanism, and the mounting mechanism includes two positioning rods fixedly connected in the both sides of one end of circuit breaker, the same lifting plate is slidably sleeved on the circumferential surface of two positioning rods, the both ends of lifting plate are fixedly sleeved with the sliding sleeve matched with positioning rod, the middle part of lifting plate is screwed with the screw rod, and the bottom of screw rod is rotatably connected on circuit breaker, the screw rod nut matched with screw rod is fixedly sleeved on lifting plate, and the inside hexagonal nut is fixedly connected on the top of screw rod. The utility model, realize through synchronous to three electric wires and fix, replaced the fixed mode one by one, greatly reduced the operation step and time, improved the overall efficiency of circuit breaker installation.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and in particular to a photovoltaic multifunctional circuit breaker that is easy to install. Background Technology

[0002] In today's rapidly developing photovoltaic power generation field, photovoltaic circuit breakers are crucial equipment for ensuring the safe and stable operation of the system, and their importance is self-evident. Photovoltaic power generation systems rely on solar panels to convert solar energy into electrical energy, which is then converted from direct current to alternating current by an inverter for user use or grid connection. In this process, photovoltaic circuit breakers undertake important responsibilities such as short-circuit protection, overload protection, and circuit isolation, playing a decisive role in the reliable operation and equipment safety of the entire photovoltaic system.

[0003] However, existing photovoltaic circuit breakers present numerous installation challenges. Traditional installation methods often require tedious operations by workers. For instance, when connecting wires to the circuit breaker, the wires must be precisely inserted into the connection slots, then secured with screws, and tightened multiple times to ensure a secure connection. This not only demands high operational skills and concentration from workers but also consumes a significant amount of time and energy, greatly reducing installation efficiency. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an easy-to-install photovoltaic multifunctional circuit breaker.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A photovoltaic multifunctional circuit breaker that is easy to install includes a circuit breaker with fixing holes at all four corners. Both ends of the circuit breaker have mounting mechanisms, each including two positioning rods fixedly connected to both sides of one end of the circuit breaker. A common lifting plate is slidably fitted onto the circumferential surface of the two positioning rods. Sliding sleeves adapted to the positioning rods are fixedly fitted onto both ends of the lifting plate. A lead screw is screwed into the middle of the lifting plate, with its bottom rotatably connected to the circuit breaker. A lead screw nut adapted to the lead screw is fixedly fitted onto the lifting plate, and an internal hexagonal nut is fixedly connected to the top of the lead screw. As the lifting plate descends, three pressure plates synchronously move towards the conductive copper block at the bottom, facilitating the simultaneous locking of three wires.

[0007] Preferably, the installation mechanism further includes three conductive copper blocks fixedly embedded at one end of the circuit breaker, the three conductive copper blocks being evenly distributed and all three conductive copper blocks being electrically connected to the circuit breaker, a pressure plate being fixedly connected to the bottom of the lifting plate at each conductive copper block, a groove being provided in the middle of the bottom of each pressure plate, and a protrusion being provided in the middle of the top of each conductive copper block.

[0008] Preferably, the circuit breaker is further provided with a limit mechanism at both ends. The limit mechanism includes four vertical blocks that are fixedly connected at equal intervals to one end of the circuit breaker. The four vertical blocks are staggered with three conductive copper blocks. A bending groove is provided between two adjacent vertical blocks, and a bent iron sheet is installed at each bending groove.

[0009] Preferably, the limiting mechanism also includes a sliding groove on the outer side of the two outer vertical blocks, with a sliding rod fixedly connected between the two ends of the two sliding grooves. A slider is slidably fitted on the circumferential surface of the two sliding rods, and a round hole adapted to the sliding rod is opened on the two sliders. A spring is fitted on the end of the two sliding rods near the middle of the circuit breaker. The setting of the limiting mechanism makes it easy for the user to fix and connect three wires at the same time when the wire is inserted into the conductive copper block and before it is fixed.

[0010] Preferably, the limiting mechanism further includes a sliding plate fixedly connected to the top of the two sliders, and a push rod is fixedly connected to each of the sliding plates near each bent iron sheet, and the push rod is adapted to the bent iron sheet.

[0011] Preferably, a switch is provided in the middle of the circuit breaker, and a T-block is fixedly connected to the circuit breaker near the switch. A limit bolt is screwed to the outer end of the T-block, and a threaded nut that matches the limit bolt is fixedly sleeved on the T-block.

[0012] The beneficial effects of this utility model are as follows:

[0013] By employing installation and limiting mechanisms, wires are inserted sequentially into their corresponding positions. With the two bent iron plates preventing unsecured wires from slipping out, rotating the hexagonal nut controls the descent of the lifting plate, causing the three pressure plates to descend and press against the three conductive copper blocks, thus securing the three wires simultaneously. This effectively solves the problem of low efficiency in securing wires one by one as described in the background technology. It achieves simultaneous securing of the three wires, replacing the method of individual securing, significantly reducing operation steps and time, and improving the overall efficiency of circuit breaker installation. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of a photovoltaic multifunctional circuit breaker that is easy to install, as proposed in this utility model;

[0015] Figure 2 A schematic diagram of the structure of a photovoltaic multifunctional circuit breaker installation mechanism that is easy to install, as proposed in this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of a photovoltaic multifunctional circuit breaker limiting mechanism that is easy to install, as proposed in this utility model.

[0017] Figure 4 This utility model proposes an easy-to-install photovoltaic multifunctional circuit breaker. Figure 3 An enlarged structural diagram of point A.

[0018] In the diagram: 1. Circuit breaker; 101. Fixing hole; 102. Switch; 103. T-block; 104. Limit bolt; 2. Mounting mechanism; 201. Conductive copper block; 202. Positioning rod; 203. Lifting plate; 204. Lead screw; 205. Hex socket nut; 206. Pressure plate; 3. Limiting mechanism; 301. Vertical block; 302. Bending iron sheet; 303. Sliding plate; 304. Push rod; 305. Slide groove; 306. Sliding block; 307. Slide rod; 308. Spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figures 1-4 A photovoltaic multifunctional circuit breaker that is easy to install includes a circuit breaker 1. The circuit breaker 1 has fixing holes 101 at each of its four corners. The circuit breaker 1 has a mounting mechanism 2 at both ends. The mounting mechanism 2 includes two positioning rods 202 fixedly connected to both sides of one end of the circuit breaker 1. The same lifting plate 203 is slidably sleeved on the circumferential surface of the two positioning rods 202. The lifting plate 203 has sliding sleeves that are adapted to the positioning rods 202 fixedly sleeved at both ends. A lead screw 204 is screwed to the middle of the lifting plate 203, and the bottom of the lead screw 204 is rotatably connected to the circuit breaker 1. A lead screw nut that is adapted to the lead screw 204 is fixedly sleeved on the lifting plate 203. An internal hexagonal nut 205 is fixedly connected to the top of the lead screw 204.

[0021] In this utility model, the installation mechanism 2 also includes three conductive copper blocks 201 fixedly embedded at one end of the circuit breaker 1. The three conductive copper blocks 201 are evenly distributed and are electrically connected to the circuit breaker 1. The bottom of the lifting plate 203 is fixedly connected to a pressure plate 206 at each conductive copper block 201. Each pressure plate 206 has a groove in the middle of its bottom and a protrusion in the middle of its top. The protrusion and groove are designed so that the wire will not slip when the conductive copper block 201 is pressed against the pressure plate 206.

[0022] In this utility model, the circuit breaker 1 is also provided with a limiting mechanism 3 at both ends. The limiting mechanism 3 includes four vertical blocks 301 that are fixedly connected at equal distances to one end of the circuit breaker 1. The four vertical blocks 301 and three conductive copper blocks 201 are staggered. A bending groove is provided between two adjacent vertical blocks 301, and a bent iron piece 302 is installed at each bending groove.

[0023] In this utility model, the limiting mechanism 3 also includes a sliding groove 305 opened on the outer side of the two outer vertical blocks 301. A sliding rod 307 is fixedly connected between the two ends of the two sliding grooves 305. A slider 306 is slidably sleeved on the circumferential surface of the two sliding rods 307. A round hole adapted to the sliding rod 307 is opened on the two sliders 306. A spring 308 is sleeved on one end of the two sliding rods 307 near the middle of the circuit breaker 1.

[0024] In this utility model, the limiting mechanism 3 also includes a sliding plate 303 fixedly connected to the top of the two sliders 306. A push rod 304 is fixedly connected to the sliding plate 303 near each bent iron piece 302, and the push rod 304 is adapted to the bent iron piece 302. The two sides of the wire are limited and squeezed by the bent iron piece 302, making it difficult for the wire to be pulled out. This ensures that the inserted wires are in a stable state during use, making it easy for the lifting plate 203 to descend and fix the three wires at the same time.

[0025] In this utility model, a switch 102 is provided in the middle of the circuit breaker 1, and a T-block 103 is fixedly connected to the circuit breaker 1 near the switch 102. A limit bolt 104 is screwed to the outer end of the T-block 103, and a threaded nut that matches the limit bolt 104 is fixedly sleeved on the T-block 103. By setting the T-block 103 and the limit bolt 104, the limit bolt 104 blocks the switch 102 when the user is performing maintenance, so that the switch 102 will not be accidentally pushed and cause the circuit to be energized, thus ensuring the user's safety.

[0026] Working Principle: When in use, the circuit breaker 1 is fixedly installed through the fixing holes 101. When wiring is required, each wire is inserted into its corresponding conductive copper block 201. The insulation layer of the wire near the conductive copper block 201 is stripped to facilitate conductivity. Before entering the conductive copper block 201, the wire passes through two bent iron plates 302. When the two bent iron plates 302 contact the insulation layer of the wire, they act as a limiter, preventing the wire from easily detaching from the conductive copper block 201 before fixing. When multiple wires are inserted into their corresponding positions, the internal hexagonal nut 205 is rotated using a tool, causing the screw 204 to rotate and lower the lifting plate 203. When the three pressure plates 206 descend and approach the corresponding conductive copper block 201, the middle wire is pressed tightly. The groove in plate 206 and the protrusion in the middle of the conductive copper block 201 facilitate the compression and deformation of the wire, improving stability and preventing it from falling off during use. When inspecting the circuit, the switch 102 is moved downwards to break the circuit. Then, the limit bolt 104 is rotated downwards using a tool, causing the limit bolt 104 to abut against the switch 102, preventing the switch 102 from being pushed upwards directly. This ensures the safety of the staff during maintenance, as the switch 102 is not easily pushed upwards by mistake. When it is necessary to replace the wire, the internal hex nut 205 is rotated in the opposite direction to raise the lifting plate 203. Then, the sliding plate 303 is pushed, causing multiple push rods 304 to push the bent iron plate 302, causing the bent iron plate 302 to deform without restricting the wire, allowing the wire to be pulled out.

[0027] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A photovoltaic multifunctional circuit breaker that is easy to install, comprising a circuit breaker (1), characterized in that, The circuit breaker (1) has fixing holes (101) at all four corners. The circuit breaker (1) has mounting mechanisms (2) at both ends. The mounting mechanism (2) includes two positioning rods (202) fixedly connected to both sides of one end of the circuit breaker (1). The same lifting plate (203) is slidably sleeved on the circumferential surface of the two positioning rods (202). The lifting plate (203) has sliding sleeves that are compatible with the positioning rods (202) fixedly sleeved at both ends. A screw rod (204) is screwed into the middle of the lifting plate (203), and the bottom of the screw rod (204) is rotatably connected to the circuit breaker (1). A screw nut that is compatible with the screw rod (204) is fixedly sleeved on the lifting plate (203), and an internal hexagonal nut (205) is fixedly connected to the top of the screw rod (204).

2. The photovoltaic multifunctional circuit breaker that is easy to install according to claim 1, characterized in that, The installation mechanism (2) also includes three conductive copper blocks (201) fixedly embedded at one end of the circuit breaker (1), and the three conductive copper blocks (201) are evenly distributed and all three conductive copper blocks (201) are electrically connected to the circuit breaker (1). The bottom of the lifting plate (203) is fixedly connected to a pressure plate (206) at each conductive copper block (201), and a groove is provided in the middle of the bottom of each pressure plate (206), and a protrusion is provided in the middle of the top of each conductive copper block (201).

3. The photovoltaic multifunctional circuit breaker that is easy to install according to claim 1, characterized in that, The circuit breaker (1) is also provided with limit mechanisms (3) at both ends. The limit mechanism (3) includes four vertical blocks (301) that are fixedly connected at equal distances to one end of the circuit breaker (1). The four vertical blocks (301) are staggered with three conductive copper blocks (201). A bending groove is provided between two adjacent vertical blocks (301), and a bent iron piece (302) is installed at each bending groove.

4. The photovoltaic multifunctional circuit breaker that is easy to install according to claim 3, characterized in that, The limiting mechanism (3) also includes a sliding groove (305) opened on the outside of the two outer vertical blocks (301). A sliding rod (307) is fixedly connected between the two ends of the two sliding grooves (305). A slider (306) is slidably sleeved on the circumferential surface of the two sliding rods (307). A round hole adapted to the sliding rod (307) is opened on the two sliders (306). A spring (308) is sleeved on one end of the two sliding rods (307) near the middle of the circuit breaker (1).

5. A photovoltaic multifunctional circuit breaker that is easy to install according to claim 4, characterized in that, The limiting mechanism (3) also includes a sliding plate (303) fixedly connected to the top of the two sliders (306). A push rod (304) is fixedly connected to the sliding plate (303) near each bent iron piece (302), and the push rod (304) is adapted to the bent iron piece (302).

6. The photovoltaic multifunctional circuit breaker that is easy to install according to claim 1, characterized in that, A switch (102) is provided in the middle of the circuit breaker (1), and a T-block (103) is fixedly connected to the circuit breaker (1) near the switch (102). A limit bolt (104) is screwed to the outer end of the T-block (103), and a screw nut that matches the limit bolt (104) is fixedly sleeved on the T-block (103).

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