CN210956347U - Reactor device - Google Patents

Abstract

The utility model discloses a reactor device, which comprises a box body, an insulating partition plate and a reactor body installed in the box body. Two boxes, the second box is a sealed cavity, the reactor body is installed in the first box, and the input terminals and output terminals of the reactor body extend to the second box through the insulating partition, the second box Inside the body is a charged body device accommodating cavity. In the reactor device provided in the present application, a sealed second box is separated from the box by an insulating partition, and the input terminal and output terminal of the reactor body are protruded to the second box through the insulating partition, and the Other charged body devices are installed in the second box, which can effectively prevent external impurities from entering the second box through the first box to contaminate the charged body devices, improve the protection level of the photovoltaic inverter, and prolong the service life of the photovoltaic inverter.

Description

Reactor device

This application claims the priority of the Chinese patent application with the application number 201822068660.X and the utility model name "Reactor Device" filed with the China Patent Office on December 10, 2018, some of which are incorporated into this application by reference.

technical field

The utility model relates to the technical field of reactor protection, in particular to a reactor device.

Background technique

Reactor, also known as inductor, is a necessary device in high-power photovoltaic inverters. It mainly plays the role of filtering, which can make the current passing through the device and the terminal more stable, and can maintain the stable operation of the inverter system.

During use, the traditional reactor device includes a box body and a reactor body installed in the box body. The reactor body is provided with input terminals and output terminals. The charged body device is also arranged in the box body, and the box body is provided with shutters and ventilation holes and other structures to communicate with the outside world.

However, since the environment inside the box is connected with the outside world, impurities can easily enter the inside of the box. Since the charged body device is electrically connected to the input terminal and the output terminal, and is located in the box, impurities can easily enter some charged body devices with lower protection levels. Inside the core device, causing damage to the charged body device and shortening the service life of the inverter.

Therefore, how to prolong the service life of the inverter is a technical problem to be solved urgently by those skilled in the art.

Utility model content

The purpose of the utility model is to provide a reactor device to prolong the service life of the inverter.

In order to achieve the above purpose, the present invention provides a reactor device, which includes a box body and a reactor body installed in the box body, and also includes a reactor body arranged in the box body, and is used to space the box body into the first A box body and an insulating baffle of a second box body, the second box body is a sealed cavity, the reactor body is installed in the first box body, and the input terminals and output terminals of the reactor body are The terminal extends to the second box body through the insulating partition plate, and the second box body is an accommodating cavity for the charged body device.

Preferably, the reactor body includes an iron core and a coil wound on the iron core, the coils are arranged in multiple layers perpendicular to the winding direction of the coil, and a heat dissipation space is provided in the middle of the coil.

Preferably, an insulating layer is provided on the surface of the coil and the surface of the heat dissipation space.

Preferably, the coils are integrally casted through an insulating adhesive.

Preferably, a clip is mounted on the end of the coil.

Preferably, the side wall of the first box body is provided with heat dissipation holes communicating with the outside.

Preferably, it also includes a heat dissipation device communicated with the inside of the second box body, the inner cavity of the heat dissipation device and the second box body form a closed cavity, and the heat dissipation device includes an aluminum foil air heat exchanger assembly.

Preferably, both the input terminal and the output terminal are provided with an insulating protective cover.

Preferably, the input terminals and the output terminals are equal in number and located on the same side of the reactor body, and the input terminals and the output terminals are arranged in a one-to-one correspondence.

Preferably, the input terminal and the output terminal are respectively located at the top and bottom ends of the side surface of the reactor body, and the input terminal and the output terminal are arranged in a one-to-one correspondence with each other.

In the above technical solution, the reactor device provided by the utility model includes a box body, an insulating partition plate and a reactor body installed in the box body. The second box is a sealed cavity, the reactor body is installed in the first box, and the input terminals and output terminals of the reactor body extend to the second box through the insulating partition, Inside the second box is a charged body device accommodating cavity.

It can be seen from the above description that, in the reactor device provided by the present application, a sealed second box is separated from the box by an insulating partition, and the input terminal and output terminal of the reactor body are extended to the first through the insulating partition. Two boxes, install other charged body devices in the second box, effectively prevent external impurities from entering the second box through the first box to contaminate the charged body devices, improve the protection level of the photovoltaic inverter, and prolong the photovoltaic inverter device life.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description It is only an embodiment of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained according to the provided drawings without creative efforts.

1 is a schematic structural diagram of a reactor body provided by an embodiment of the present invention;

2 is a schematic structural diagram of a reactor device provided by an embodiment of the present invention;

Fig. 3 is a top view of the reactor device shown in Fig. 2;

FIG. 4 is a schematic structural diagram of a heat dissipation device provided by an embodiment of the present invention.

Among them in Figure 1-4: 1. Ground foot assembly; 2. Coil; 3. Iron core; 4. Clip; 5. Input terminal; 6. Output terminal; 7. Insulation baffle; 8. The first box 9. The second box;

10-1, sheet metal; 10-2, the first fan; 10-3, heat exchanger; 10-4, the second fan.

Detailed ways

The core of the utility model is to provide a reactor device to prolong the service life of the inverter.

In order to make those skilled in the art better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

Please refer to Figure 1 to Figure 4.

In a specific embodiment, the reactor device provided by the specific embodiment of the present invention includes a box body, an insulating partition 7 and a reactor body installed in the box. The insulating partition 7 is arranged in the box and is used for connecting The interval inside the box is the first box 8 and the second box 9, and the second box 9 is the accommodating cavity of the charged body device. Of course, in the specific use process, other cavity structures can also be isolated in the box, according to the actual situation. as needed. Specifically, the side wall of the first box body 8 is provided with heat dissipation holes communicating with the outside world. Specifically, shutters may be provided. Of course, in order to facilitate the installation of other electrical structures, the side wall of the first box body 8 is provided with a door body.

In order to facilitate the installation of the reactor body, preferably, the bottom end of the reactor body is installed on the bottom of the first box body 8 through the foot assembly 1 . Specifically, the foot assembly 1 can be installed on the first box body 8 through bolts.

The insulating baffle 7 can be made of insulating material. In order to facilitate the maintenance of the reactor body, preferably, the insulating baffle 7 is detachably connected to the side of the box.

The second box body 9 is a sealed cavity, the reactor body is installed in the first box body 8 , and the input terminal 5 and the output terminal 6 of the reactor body protrude to the second box body 9 through the insulating partition 7 , the second box 9 is a highly protective cavity. In order to improve the conduction stability, preferably, the input terminal 5 and the output terminal 6 are copper bar terminals, and other charged body structures electrically connected to the input terminal 5 and the output terminal 6 are placed in the second box 9, and the reactor The input terminal 5 and the output terminal 6 of the main body protrude to the second box body 9 through the insulating partition 7, and the first box body 8 is formed into a non-charged box body, and the second box body 9 is a live box body, so as to ensure the second box body. The sealing of the box 9 improves the protection level, usually ensuring that the protection level is above IP65.

It can be seen from the above description that in the reactor device provided by the specific embodiment of the present application, a sealed second box 9 is separated from the box by the insulating partition 7 , and the reactor body is placed in the first box 8 , effectively avoid the pollution of the reactor body by external impurities, effectively improve the dustproof and anti-fouling grade of the devices in the second box 9, ensure the cavity sealing of the second box 9, and the input terminals and output of the reactor body. The terminals protrude to the second box through the insulating baffle, and other charged components are installed in the second box, which can effectively prevent external impurities from entering the second box through the first box to contaminate the charged components, and improve the photovoltaic reverse performance. The protection level of the inverter extends the service life of the photovoltaic inverter.

Specifically, the reactor body includes an iron core 3 and a coil 2 wound on the iron core 3. Preferably, the iron core 3 is a rectangular iron core, and the coils 2 are arranged in multiple layers along the winding direction perpendicular to the coil 2. cooling space. Preferably, the heat dissipation space is communicated with the inner space of the first box body 8 up and down, so as to improve the overall heat dissipation performance of the reactor body. In order to improve the winding stability of the coil 2, preferably, the coil 2 is cast into one body through an insulating adhesive.

In order to improve the dustproof and waterproof performance of the coil 2, preferably, an insulating layer is provided on the surface of the coil 2 and the surface of the heat dissipation space. Of course, an insulating layer may be provided on the entire outer surface of the reactor body.

Specifically, the insulating layer is an insulating paint layer, and the worker can directly coat the insulating paint on the surface to form an insulating layer.

In order to improve the installation stability of the coil 2 , preferably, the reactor device further includes a clip 4 installed at the end of the coil 2 .

Preferably, the reactor device further includes a heat dissipation device communicating with the inside of the second box body 9 , and the inner cavity of the heat dissipation device and the inside of the second box body 9 form a closed cavity.

The heat dissipation device includes a heat exchanger 10-3, a first fan 10-2 and a second fan 10-4, wherein the heat exchanger 10-3 may be an aluminum foil air heat exchanger assembly. Specifically, when the ambient temperature outside is lower than the ambient temperature in the cavity of the second box 9, the first fan 10-2 outside the heat exchanger 10-3 inhales the outside cold air A1, and the second fan inside the heat exchanger 10-3 sucks the cold air A1 from the outside. 10-4 The hot air B1 sucked into the cavity of the second box body 9 is exchanged through the finned aluminum foil in the heat exchanger 10-3, and the gas in the second box body 9 that is extracted and cooled becomes cold air B2 and enters the second box body again. Inside the box 9, the outside air becomes hot air A2 and is discharged into the outside air to realize the exchange of cold and heat in the second box 9 with high protection. Specifically, the first fan 10-2 can be arranged on the reactor device casing, or on the overall casing of the system, and blows the cold air directly onto the finned aluminum foil of the heat exchanger 10-3. At the same time, the inner fan 10-4 blows the cavity The hot air in the body is sucked into the aluminum foil, and the heat and cold are exchanged through the heat exchanger aluminum foil.

The fixing of the first fan 10-2 and the second fan 10-4 and the sealing of the heat exchanger 10-3 are realized by the sheet metal assembly 10-1. It should be noted that the direction of the internal and external forced air cooling channels can be changed, not only limited to the internal bottom in and top out and the external top in and bottom out, but also the internal top in and bottom out, and the external bottom in and top out.

The heat dissipation of the high-protection second box 9 is only exchanged through the heat exchanger on one side, and the gas in the box does not circulate with the outside world, so that the internal air flow and heat exchange are realized, and the low-protection level power devices are prevented from directly contacting the harsh environment, thereby avoiding The polluted cold air will damage the low-protection-level power devices, and the high-protection second box 9 can effectively protect the low-protection-level power devices in it, thereby improving the overall protection level of the reactor device and prolonging the life of the inverter. .

Of course, in order to further improve heat dissipation, the first box body 8 is provided with an external circulation heat dissipation device that communicates with the outside world. Specifically, a fan can be used to transport gas into the first box body 8 to cool the internal devices.

In order to further improve the use safety of the reactor device and improve the protection level, preferably, the input terminal 5 and the output terminal 6 of the reactor device are provided with insulating protective sleeves.

In order to facilitate the connection of the reactor, preferably, the input terminals 5 and the output terminals 6 are equal in number and located on the same side of the reactor body, and the input terminals 5 and the output terminals 6 are arranged in one-to-one correspondence.

More preferably, the input terminal 5 and the output terminal 6 are respectively located at the top and bottom of the side of the reactor body, and the input terminal 5 and the output terminal 6 are arranged in a one-to-one correspondence.

In the present application, only the sealed second box 9 is separated by the insulating partition plate 7, so that the overall structure of the reactor device is simple, easy to install, and has the advantages of simple subsequent maintenance and the like. Specifically, in order to facilitate the disassembly and assembly of the insulating spacer 7, the insulating spacer 7 may be processed into a split structure. In order to facilitate the disassembly and assembly of other electrified body structures installed in the second box body 9 , preferably, a door body is provided on the side wall of the second box body 9 .

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other.

The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A reactor device, comprising a box body and a reactor body installed in the box body, characterized in that it also includes a reactor body arranged in the box body, and is used to space the box body into a first box body (8) and the insulating partition (7) of the second box body (9), the second box body (9) is a sealed cavity, and the reactor body is installed in the first box body (8) inside, and the input terminal (5) and output terminal (6) of the reactor body protrude to the second box (9) through the insulating partition (7), and the second box (9) Inside is the charged body device accommodating cavity. 2. The reactor device according to claim 1, wherein the reactor body comprises an iron core (3) and a coil (2) wound on the iron core (3), the coil (2) ) are arranged in layers perpendicular to the winding direction of the coil (2), and a heat dissipation space is provided in the middle of the coil (2). 3 . The reactor device according to claim 2 , wherein an insulating layer is provided on the surface of the coil ( 2 ) and the surface of the heat dissipation space. 4 . 4 . The reactor device according to claim 2 , wherein the coil ( 2 ) is integrally cast with an insulating adhesive. 5 . 5. The reactor device according to claim 2, characterized in that it further comprises a clip (4) mounted on the end of the coil (2). 6. The reactor device according to claim 1, characterized in that, the side wall of the first box body (8) is provided with a heat dissipation hole communicating with the outside. 7. The reactor device according to claim 1, characterized in that it further comprises a heat dissipation device communicating with the inside of the second box body (9), and the inner cavity of the heat dissipation device is connected to the second box body (9). 9) A closed cavity is formed inside, and the heat dissipation device includes an aluminum foil type air heat exchanger assembly. 8. The reactor device according to any one of claims 1-7, characterized in that both the input terminal (5) and the output terminal (6) are provided with an insulating protective cover. 9 . The reactor device according to claim 8 , wherein the input terminals ( 5 ) and the output terminals ( 6 ) are of equal number, and are located on the same side of the reactor body, so the The input terminals (5) and the output terminals (6) are arranged in one-to-one correspondence. 10. The reactor device according to claim 9, characterized in that, the input terminal (5) and the output terminal (6) are respectively located at the top and bottom of the side surface of the reactor body, and the The input terminals (5) and the output terminals (6) are arranged in one-to-one correspondence.

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