CN220341150U - Frame-type circuit breaker special for photovoltaic - Google Patents

Abstract

The utility model discloses a special photovoltaic frame-type circuit breaker, which comprises a circuit breaker main body, wherein a connecting terminal is arranged at the rear side of the circuit breaker main body, an upper conducting bar and a lower conducting bar are integrally formed at one side of the connecting terminal, two through holes are formed in the upper conducting bar and the lower conducting bar, connecting rods are connected in a sliding manner in the two through holes, a pressing plate is fixedly connected to the top of the connecting rod, a contact plate is fixedly connected to the bottom of the connecting rod, second fixing holes are symmetrically formed in the upper conducting bar and the lower conducting bar, and first fixing holes corresponding to the second fixing holes are formed in the contact plate and the pressing plate.

Description

Frame-type circuit breaker special for photovoltaic

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a frame type circuit breaker special for photovoltaic.

Background

The photovoltaic is a power generation system for converting solar radiation energy into electric energy, which can not generate greenhouse gas and cause environmental pollution, can help us reduce dependence on fossil fuel, promotes energy structure to convert to clean energy, so that the development is greatly advanced in recent years, and the frame-type circuit breaker is used as main protection equipment in the photovoltaic, can cut off a circuit under the conditions of short circuit, overcurrent and the like of the output of a photovoltaic module, avoids damage or safety accidents caused by overload of the circuit, and along with the continuous development of the photovoltaic industry, the performance of controlling and protecting electric appliances in the photovoltaic is also put forward higher and higher requirements.

The existing special frame-type circuit breaker of photovoltaic is generally installed in the switch board, its connecting terminal is directly connected with the female row of electric power in the switch board, when connecting, connecting terminal is in the same place with the female row of electric power is superimposed, then use the bolt and nut to fix, in order to ensure that junction has lower temperature rise, generally need increase connecting terminal and the female area of contact who arranges of electric power, consequently can increase connecting terminal and the female length who arranges of electric power, lead to the special frame-type circuit breaker of photovoltaic's volume grow, occupy great installation space in the switch board, do not accord with people's operation requirement.

Disclosure of Invention

The utility model aims to provide a frame-type circuit breaker special for photovoltaic, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a special frame-type circuit breaker of photovoltaic, includes the circuit breaker main part, connecting terminal is installed to the rear side of circuit breaker main part, one side integrated into one piece of connecting terminal has upper conductive bar and lower conductive bar, upper conductive bar all is equipped with two through-holes with the inside of lower conductive bar, two the inside of through-hole is equal sliding connection has the connecting rod, the top fixedly connected with clamp plate of connecting rod, the bottom fixedly connected with contact plate of connecting rod, upper conductive bar all symmetry is equipped with the second fixed orifices on arranging with lower conductive bar, contact plate with the inside of clamp plate all be equipped with the corresponding first fixed orifices of second fixed orifices.

As a preferable mode of the utility model, the inner wall of the through hole is provided with a first conductive layer, and the bottom of the contact plate is provided with a second conductive layer.

As a preferable mode of the utility model, the connecting terminal, the upper conductive bar and the lower conductive bar are formed with mounting grooves, and the contact plate is positioned inside the mounting grooves.

As a preferable scheme of the utility model, the first conductive layer and the second conductive layer are made of conductive grease, and the connecting rod, the contact plate and the pressing plate are made of copper alloy.

As a preferable scheme of the utility model, a top cover is arranged at the top of the breaker main body, and heat dissipation holes distributed at equal intervals are arranged on the top cover.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the conductive area between the connecting terminal and the power busbar can be increased through the upper conductive busbar, the lower conductive busbar, the contact plate and the connecting rod, the resistance is reduced, and the effect of reducing the temperature rise is achieved, so that the temperature rise between the connecting terminal and the power busbar can be reduced without increasing the length of the connecting terminal, the circuit breaker main body is prevented from becoming large, and the contact plate can slide up and down through the connecting rod and the through hole, so that the circuit breaker is suitable for the power busbars with different thicknesses.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the rear side of the present utility model;

FIG. 3 is an enlarged view of the utility model at A in FIG. 2;

FIG. 4 is a partial right side cross-sectional view of the present utility model;

FIG. 5 is an enlarged view of the utility model at B in FIG. 4;

fig. 6 is a schematic structural view of the connection terminal of the present utility model;

fig. 7 is a schematic structural view of a contact plate according to the present utility model.

In the figure: 1. a breaker main body; 2. a top cover; 3. a heat radiation hole; 4. a through hole; 5. a connection terminal; 6. an upper conductive bar; 7. a lower conductive bar; 8. a first fixing hole; 9. a pressing plate; 10. a contact plate; 11. a connecting rod; 12. a second fixing hole; 13. a first conductive layer; 14. a mounting groove; 15. and a second conductive layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 7, the present utility model provides a technical solution: the utility model provides a special frame-type circuit breaker of photovoltaic, including circuit breaker main part 1, connecting terminal 5 is installed to the rear side of circuit breaker main part 1, one side integrated into one piece of connecting terminal 5 has upper conductive bar 6 and lower conductive bar 7, upper conductive bar 6 and the inside of lower conductive bar 7 all are equipped with two through-holes 4, the inside of two through-holes 4 all sliding connection has connecting rod 11, can make contact plate 10 slide from top to bottom through connecting rod 11 and through-hole 4 that set up, and then adapt to the female row of electric power of different thickness, connecting rod 11's top fixedly connected with clamp plate 9, the bolt can be through clamp plate 9 to connecting rod 11 and contact plate 10 application of force, thereby ensure that contact plate 10 pastes tight female row of electric power, connecting rod 11's bottom fixedly connected with contact plate 10, upper conductive bar 6 through setting up, lower conductive bar 7, contact plate 10 and connecting rod 11 make electric power female row can direct contact down conductive bar 7 and connecting terminal 5, and can conduct through contact plate 10 and connecting terminal 5, thereby increase the conductive area between electric power female row and the connecting terminal 5, reduce resistance, and reduce the temperature rise, and the main part can make contact plate 1 and the second fixed orifices that can be equipped with the second fixed orifices 8 and the second fixed orifices that can be fixed to the second fixed orifices 8 are fixed to the corresponding hole that can be fixed to the second is equipped with to the upper conductive plate 10.

The inner wall of the through hole 4 is provided with a first conductive layer 13, the first conductive layer 13 is used for filling a gap between the connecting rod 11 and the upper conductive row 6, so that the contact resistance between the connecting rod 11 and the upper conductive row 6 is greatly reduced, the conductive capacity of the connecting rod 11 is improved, the bottom of the contact plate 10 is provided with a second conductive layer 15, and the second conductive layer 15 is used for filling a gap between the contact plate 10 and the power busbar.

Wherein the connection terminal 5, the upper conductive bar 6 and the lower conductive bar 7 are formed with mounting grooves 14, and the contact plate 10 is positioned inside the mounting grooves 14.

The first conductive layer 13 and the second conductive layer 15 are conductive grease, the conductive grease has good conductivity, does not have corrosiveness to metal materials, has good oxidation resistance, and has long service life, and the connecting rod 11, the contact plate 10 and the pressing plate 9 are all made of copper alloy.

Wherein, top cover 2 is installed at the top of circuit breaker main part 1, is equipped with the louvre 3 that the equidistance distributes on the top cover 2, and the louvre 3 is convenient for the inside electrical component of circuit breaker main part 1 dispels the heat.

Specifically, during the use, insert the one end of electric power busbar in mounting groove 14, and be located between contact plate 10 and the lower electrically conductive row 7, and make electric power busbar and connecting terminal 5 contact, the mounting hole on the electric power busbar aligns with second fixed orifices 12 this moment, take the bolt and pass clamp plate 9 in proper order afterwards, go up electrically conductive row 6, contact plate 10, electric power busbar and lower electrically conductive row 7, screw up the nut again and screw up on the bolt, the spiral shell head of bolt exerts the thrust down to clamp plate 9, clamp plate 9 promotes contact plate 10 through connecting rod 11 and moves down, contact plate 10 compresses tightly the electric power busbar, simultaneously under the promotion of contact plate 10, electric power busbar also pastes tightly with lower electrically conductive row 7, make electric power busbar not only can direct contact connecting terminal 5 and lower electrically conductive row 7 conduct, simultaneously also accessible contact plate 10 and connecting rod 11 conduct electricity, thereby increase electric power busbar's conduction area, thereby reduce the resistance, and reach the effect of reducing the temperature rise.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," "fourth" may explicitly or implicitly include at least one such feature.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a special frame-type circuit breaker of photovoltaic, includes circuit breaker main part (1), its characterized in that: connecting terminal (5) are installed to the rear side of circuit breaker main part (1), one side integrated into one piece of connecting terminal (5) has upper conductive bar (6) and lower conductive bar (7), upper conductive bar (6) all are equipped with two through-holes (4) with the inside of lower conductive bar (7), two the inside of through-hole (4) all sliding connection has connecting rod (11), the top fixedly connected with clamp plate (9) of connecting rod (11), the bottom fixedly connected with contact plate (10) of connecting rod (11), upper conductive bar (6) all symmetry is equipped with second fixed orifices (12) on lower conductive bar (7), contact plate (10) all be equipped with the inside of clamp plate (9) first fixed orifices (8) corresponding with second fixed orifices (12).

2. The photovoltaic dedicated frame circuit breaker according to claim 1, characterized in that: the inner wall of the through hole (4) is provided with a first conductive layer (13), and the bottom of the contact plate (10) is provided with a second conductive layer (15).

3. The photovoltaic dedicated frame circuit breaker according to claim 1, characterized in that: the connecting terminal (5), the upper conducting bar (6) and the lower conducting bar (7) are provided with mounting grooves (14), and the contact plate (10) is positioned in the mounting grooves (14).

4. The photovoltaic dedicated frame circuit breaker according to claim 2, characterized in that: the first conductive layer (13) and the second conductive layer (15) are made of conductive grease, and the connecting rod (11), the contact plate (10) and the pressing plate (9) are made of copper alloy.

5. The photovoltaic dedicated frame circuit breaker according to claim 1, characterized in that: the circuit breaker is characterized in that a top cover (2) is arranged at the top of the circuit breaker main body (1), and radiating holes (3) distributed at equal intervals are formed in the top cover (2).