SUMMERY OF THE UTILITY MODEL
Based on aforementioned prior art defect, the embodiment of the utility model provides a power electronic transformer's power cabinet, but the above-mentioned problem of solution of preferred.
In order to achieve the above object, the present invention provides the following technical solutions.
A power cabinet for a power electronic transformer, comprising:
the front side of the first cabinet body, which is back to the second cabinet body, is provided with a first door which can be opened and closed, and the front side of the second cabinet body, which is back to the first cabinet body, is provided with a second door which can be opened and closed;
the first high-frequency transformer and the first inductor are arranged at the bottom of the first cabinet body;
the second high-frequency transformer and the second inductor are arranged at the bottom of the second cabinet body;
the air duct is arranged between the first cabinet body and the second cabinet body and is communicated with the inner spaces of the first cabinet body and the second cabinet body;
the heat dissipation fans are arranged at the tops of the first cabinet body and the second cabinet body and are communicated with the air channel;
the first high-frequency transformer and the second high-frequency transformer and the first inductor are connected with the second inductor through a copper bar, and the copper bar comprises an internal connecting section and an external connecting section, wherein the internal connecting section is located at the back of the first cabinet body and the back of the second cabinet body, and the external connecting section is connected with the internal connecting section and located at the top of the first cabinet body and the top of the second cabinet body.
Preferably, the central parts of the first cabinet door and the second cabinet door are provided with transparent panels.
Preferably, the number of the first high-frequency transformers and the first inductors is plural, a plurality of the first high-frequency transformers are arranged in a row, and a plurality of the first inductors are arranged in a row; and the plurality of first high frequency transformers and the plurality of first inductors are arranged in a front-rear direction.
Preferably, a first power module is arranged in the first cabinet body, and the first power module is located above the first high-frequency transformer and the first inductor.
Preferably, at least one first horizontal supporting beam extending in the left-right direction is arranged in the first cabinet body, the first horizontal supporting beam is located above the first high-frequency transformer and the first inductor, and the first power module is arranged on the first horizontal supporting beam.
Preferably, the first horizontal support beam is provided with a plurality of first mounting stations arranged along the left-right direction, and each first mounting station comprises two first limiting plates extending along the front-back direction; the first power module is clamped on the first installation station, and the first limiting plates abut against two sides of the first power module and are used for horizontally limiting the first power module.
Preferably, a second power module is arranged in the second cabinet body, and the second power module is located above the second high-frequency transformer and the second inductor.
Preferably, the second cabinet body is provided with at least a second horizontal support beam extending in the left-right direction, the second horizontal support beam is located above the second high-frequency transformer and the second inductor, and the second power module is arranged on the second horizontal support beam.
Preferably, the second horizontal support beam is provided with a plurality of second mounting stations which are arranged along the left-right direction, and each second mounting station comprises two second limiting plates which extend along the front-back direction; the second power module is clamped on the second mounting station, and the second limiting plates abut against two sides of the second power module and are used for horizontally limiting the second power module.
The utility model discloses power cabinet through adopting two cabinet bodies to set up back to back, makes two cabinet body sharing wind channel and cooling fan to adopt reasonable winding displacement design to the copper bar of connecting the electric device in two cabinet bodies, make power cabinet overall structure reasonable in design, be convenient for maintain. Moreover, the purposes of facilitating module installation and disassembly, ensuring insulation distance, keeping the appearance neat and beautiful, and saving cost to the maximum extent on the basis of ensuring safety and reliability are achieved through reasonable design layout, and the requirements of long-term operation stability and reliability of the power cabinet are further met.
Detailed Description
As shown in fig. 1 to 4, an embodiment of the present invention provides a power cabinet of a power electronic transformer, which includes a first cabinet body 1 and a second cabinet body 2 that are arranged back to back. Wherein, the front of the first cabinet body 1 back to the second cabinet body 2 is provided with a first door which can be opened and closed, and the front of the second cabinet body 2 back to the first cabinet body 1 is provided with a second door 202 which can be opened and closed. The transparent panel 201 is arranged at the central part of the first cabinet door and the second cabinet door 202, so that the internal condition of the power tube can be conveniently observed. Windows may be opened on the first and second doors 202, and the transparent panel 201 may be glass embedded in the windows.
The power cabinet comprises a high-frequency transformer 3 and an inductor (not shown) which are heavy, and in order to improve the posture stability of the power cabinet, the high-frequency transformer 3 and the inductor can be arranged at the bottom of the power cabinet so as to reduce the key points of the power cabinet and improve the stability of the power cabinet. Specifically, as shown in fig. 4, a first high-frequency transformer and a first inductor are disposed at the bottom of the first cabinet 1, and a second high-frequency transformer and a second inductor are disposed at the bottom of the second cabinet 2. In this embodiment, the first high-frequency transformer and the second high-frequency transformer, the first inductor and the second inductor may have the same structure, and the use of "the first" and "the second" is only used to distinguish the high-frequency transformer 3 and the inductor which are disposed in different cabinets, and does not mean that there is a structural difference between the high-frequency transformer 3 and the inductor which are housed in the two cabinets.
In the present embodiment, the "high frequency transformer" refers to a power transformer having an operating frequency exceeding an intermediate frequency (10 kHz). Thus, the term "high frequency" means an operating frequency in excess of 10 kHz.
Further, because the first cabinet body 1 and the second cabinet body 2 are arranged and placed back to back, the first cabinet body 1 and the second cabinet body 2 can share one heat-dissipating air duct 5 and one heat-dissipating fan 4. Specifically, as shown in fig. 2 and 3, the air duct 5 is disposed between the first cabinet 1 and the second cabinet 2, and the air duct 5 is communicated with the inner spaces of the first cabinet 1 and the second cabinet 2. The heat radiation fan 4 is arranged at the top of the first cabinet body 1 and the second cabinet body 2 and communicated with the air duct 5. Thus, only one heat radiation fan 4 and one air duct 5 are configured, and heat radiation operation can be simultaneously carried out on the two cabinets.
As shown in fig. 4, the number of the first high-frequency transformers and the first inductors is plural, the plural first high-frequency transformers are arranged in a row, and the plural first inductors are arranged in a row. And, the plurality of first high frequency transformers and the plurality of first inductors are arranged in a front-rear direction. Specifically, the first high-frequency transformers are arranged in a row on the outside, and the first inductors are arranged in a row on the inside. Alternatively, the plurality of first high-frequency transformers are arranged inside in a row, and the plurality of first inductors are arranged outside in a row.
The power cabinet also comprises a lighter power module 6, and the lighter power module 6 can be arranged above the high-frequency transformer 3 and the inductor. Specifically, a first power module 6 is disposed in the first cabinet 1, and the first power module 6 is located above the first high-frequency transformer and the first inductor. A second power module 6 is arranged in the second cabinet body 2, and the second power module 6 is positioned above the second high-frequency transformer and the second inductor.
For supporting the power module 6, at least one first horizontal supporting beam extending along the left-right direction is arranged in the first cabinet body 1, the first horizontal supporting beam is positioned above the first high-frequency transformer and the first inductor, and the first power module 6 is arranged on the first horizontal supporting beam. Similarly, the second cabinet 2 is provided with at least a second horizontal supporting beam 7 extending in the left-right direction, the second horizontal supporting beam 7 is located above the second high-frequency transformer and the second inductor, and the second power module 6 is arranged on the second horizontal supporting beam 7.
In the present embodiment, the first horizontal support beam and the second horizontal support beam 7 are at the same level, and the number thereof is at least one, two as shown in fig. 3. Thus, the cabinet is entirely divided into at least two layers, wherein the high-frequency transformer 3 and the inductor with relatively large weight are placed on the lowest layer, and the power module 6 with relatively small weight is placed on the middle upper layer. Therefore, the overall emphasis of the power cabinet is lower, and the stability is better.
Further, in order to carry out spacingly to power module 6, prevent that power module 6 from taking place the displacement, be equipped with a plurality of first installation stations of arranging along the left and right direction on the first horizontal support beam, every first installation station includes two first limiting plates that extend along the fore-and-aft direction. First power module 6 card is established on first installation station, and first limiting plate supports and leans on first power module 6's both sides for carry out horizontal spacing to first power module 6. Similarly, the second horizontal supporting beam 7 is provided with a plurality of second mounting stations arranged in the left-right direction, and each second mounting station comprises two second limiting plates extending in the front-back direction. The second power module 6 is clamped on the second mounting station, and the second limiting plate abuts against two sides of the second power module 6 and is used for horizontally limiting the second power module 6.
Like this, power module 6 is by orderly regular and horizontal placing in bank, and every power module 6 is spacing by the limiting plate of the installation station that corresponds it, avoids power module 6 to take place the horizontal displacement of controlling.
As shown in fig. 1, 2 and 4, in the present embodiment, the first cabinet 1 and the second cabinet 2 which are arranged back to back are arranged in series in an electrical connection. Specifically, each cabinet houses 24 high power electrical devices and 24 low power electrical devices. Wherein, the electrical devices with the same power in the two cabinets (for example, the first high-frequency transformer and the second high-frequency transformer, the first inductor and the second inductor, and the first power module 6 and the second power module 6 described above) are connected by a copper bar, and the copper bar includes an internal connection section 801 located at the back of the first cabinet 1 and the second cabinet 2, and an external connection section 802 connected with the internal connection section 801 and located outside the top of the first cabinet 1 and the second cabinet 2.
That is to say, the copper bar is located the inside part of the first cabinet body 1 and the second cabinet body 2 and is arranged at the back, and the top of the first cabinet body 1 and the second cabinet body 2 of bypassing realizes two internal electric device's of cabinet series connection. Like this, the connection copper bar of two front and back cabinets is at cabinet top outside wire winding, has both guaranteed insulation distance, also provides convenience for cabinet body internal layout. Copper bar internal connection part designs at the back of the cabinet body, guarantees that the power cabinet openly is succinct pleasing to the eye, avoids cabinet body internal line to be mixed and disorderly.
The utility model discloses power cabinet through adopting two cabinet bodies to set up back to back, makes two cabinet body sharing wind channel 5 and cooling fan 4 to adopt reasonable winding displacement design to the copper bar of connecting the electric device in two cabinet bodies, make power cabinet overall structure reasonable in design, be convenient for maintain. Moreover, the purposes of facilitating module installation and disassembly, ensuring insulation distance, keeping the appearance neat and beautiful, and saving cost to the maximum extent on the basis of ensuring safety and reliability are achieved through reasonable design layout, and the requirements of long-term operation stability and reliability of the power cabinet are further met.
It should be noted that, in the description of the present invention, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no order is shown between the two, and no indication or suggestion of relative importance is understood. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The above description is only for the embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention according to the disclosure of the application document.