Power unit wind shielding structure with edge ribs and frequency converter

Abstract

The utility model provides a power unit wind shielding structure with edge ribs and a frequency converter. The power unit wind shielding structure comprises a power unit with edge ribs, a unit guide rail, a first insulating beam, a second insulating beam and a side plate. The side edges of the power units with the edge ribs are provided with wind-shielding edge ribs, the upper and lower ends of the tail parts of the power units are attached to the second insulating beam, the power units are installed side by side, and the wind-shielding edge ribs are attached to each other to form a wind-shielding structure. While the wind shielding isolation requirement is met, a wind shield is omitted, the manufacturing cost is reduced, the internal space utilization rate of the frequency converter is increased, and the assembling difficulty and the overall weight of the frequency converter are reduced.

Description

Technical Field

[0001] This utility model relates to the field of frequency converter technology, and more specifically, to a power unit windproof structure with side ribs and a frequency converter. Background Technology

[0002] Currently, in related technologies, the windbreak structure around the power unit of a frequency converter is typically constructed by combining the power unit with a wind deflector. The wind deflector has pre-set openings of the same size as the air outlet of the power unit. When installing the power unit, the openings on the power unit are aligned with the pre-set air outlets on the rear wind deflector, and they fit together to complete the windbreak structure. The traditional installation method of the power unit and wind deflector has the disadvantages of numerous parts, cumbersome assembly, and high manufacturing costs. Therefore, how to optimize the frequency converter structure, improve structural utilization, and reduce weight is a pressing problem that needs to be solved in this field. Summary of the Invention

[0003] To solve the above problems, this utility model provides a power unit windproof structure with side ribs and a frequency converter.

[0004] To achieve the above objectives, this utility model provides a windproof structure for a power unit with side ribs, comprising a power unit with side ribs, a unit guide rail, a first insulating beam, a second insulating beam, and a side plate. The unit guide rail is installed at the bottom of the power unit with side ribs; the second insulating beam and the side plate are installed at the rear of the power unit with side ribs, with the side plate installed on the back of the second insulating beam; the first insulating beam is installed at the front bottom of the unit guide rail.

[0005] Furthermore, the power unit with side ribs is provided with windproof side ribs, which are located on the left and right sides of the tail of the power unit with side ribs, perpendicular to the left and right sides and protruding outward along the left and right sides.

[0006] Furthermore, the upper surface of the unit guide rail is provided with strip-shaped limiting protrusions, which divide the upper surface of the unit guide rail into two partial surfaces. The partial surfaces are provided with mounting holes that match the bottom of the power unit with side ribs.

[0007] Furthermore, the first insulating beam is a long, narrow crossbeam with a "C"-shaped cross section, and its mounting surface has mounting holes that match the unit guide rail.

[0008] Furthermore, the second insulating beam is provided with two limiting and load-bearing protrusions extending along the first direction. The limiting and load-bearing protrusions are located on the side of the second insulating beam, protruding towards the power unit side with side ribs, and dividing the side of the second insulating beam into three partial surfaces. The upper and lower partial surfaces of the partial surfaces are provided with unit limiting pin holes and side mounting holes.

[0009] Furthermore, the power unit with side ribs has a unit limiting protrusion at the tail end. The unit limiting protrusion is cylindrical in shape and has a bevel at the top. The limiting protrusion cooperates with the unit limiting pin hole of the second insulating beam.

[0010] Furthermore, both the windshield side ribs and the unit limiting protrusions are on the power unit housing with side ribs, and the housing is integrally injection molded.

[0011] Furthermore, the limiting protrusions of the unit guide rail are integrally injection molded with insulating material.

[0012] Furthermore, both the first and second insulating beams are integrally molded from insulating materials.

[0013] This utility model also provides a frequency converter, including the windproof structure of the power unit with side ribs described above. Multiple power units with side ribs in the frequency converter are installed in a row or multiple rows in parallel. The power units with side ribs arranged in the same row along the first direction adopt a multi-stage series structure. The power units with side ribs are attached to each other through the windproof side ribs.

[0014] The beneficial effects of this utility model are as follows: the power unit housing with side ribs is injection molded from an integrated insulating material, which has a simple structure, high strength, and excellent electrical insulation performance; the power unit with side ribs has added windproof side ribs and unit limiting protrusions, which effectively reduces the installation gap of the power unit with side ribs; the power units with side ribs are installed close to each other, which not only meets the windproof isolation requirements, but also eliminates the need for a windproof plate, reducing manufacturing costs, increasing the internal space utilization of the frequency converter, and reducing the assembly difficulty and overall weight of the frequency converter. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the windbreak structure of the power unit with side ribs proposed in this utility model;

[0016] Figure 2 This is a three-dimensional schematic diagram of the power unit with side ribs proposed in this utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of the unit guide rail proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the first insulating beam proposed in this utility model;

[0019] Figure 5 This is a schematic diagram of the second insulating beam proposed in this utility model;

[0020] Figure 6 This is a schematic diagram of the limiting pin hole structure proposed in this utility model;

[0021] Figure 7This is a cross-sectional view of the limiting pin hole fit proposed in this utility model;

[0022] Figure 8 This is a schematic diagram of the overall assembly of the windbreak structure with side ribs for the power unit proposed in this utility model. Detailed Implementation

[0023] Figure 1 This is a three-dimensional schematic diagram of a power unit windbreak structure with side ribs proposed in this utility model, as shown below. Figure 1 As shown, a windproof structure for a power unit with side ribs includes: a power unit 1 with side ribs, a unit guide rail 2, a first insulating beam 3, a second insulating beam 4, and a side plate 5. The unit guide rail 2 is installed at the bottom of the power unit 1 with side ribs, the second insulating beam 4 and the side plate 5 are located at the tail of the power unit 1 with side ribs, the side plate 5 is installed on the back of the second insulating beam 4, and the first insulating beam 3 is installed at the front bottom of the unit guide rail 2.

[0024] Figure 2 This is a three-dimensional schematic diagram of the power unit with side ribs proposed in this utility model, as shown below. Figure 2 As shown, in a further embodiment, the power unit 1 with side ribs is provided with windproof side ribs 101. The windproof side ribs 101 are located on the left and right sides of the rear of the power unit 1 with side ribs, perpendicular to the left and right sides and protruding outwards along the left and right sides. The length of the windproof side ribs 101 is consistent with the height of the side sides of the power unit 1 with side ribs, and the side surface of the windproof side ribs 101 is on the same plane as the rear plane of the power unit 1 with side ribs. The windproof side ribs 101 and the power unit shell are made of insulating material and are integrally injection molded, which has the advantages of simple structure and reliable strength.

[0025] Figure 3 This is a three-dimensional schematic diagram of the unit guide rail 2 proposed in this utility model, as shown below. Figure 3 As shown, in a further implementation, the upper surface of the unit guide rail 2 is provided with a strip-shaped limiting protrusion 201, which divides the upper surface of the unit guide rail 2 into two partial surfaces, namely partial surface 203 and partial surface 204. Partial surface 203 and partial surface 204 are provided with mounting holes that match the bottom of the power unit 1 with side ribs.

[0026] Figure 4 This is a schematic diagram of the first insulating beam 3 proposed in this utility model, as shown below. Figure 4 As shown, in a further implementation, the first insulating beam 3 is a long strip-shaped crossbeam with a "C"-shaped cross section. The upper mounting plane 301 at its upper end contacts the bottom surface of the unit guide rail 2, and the upper mounting plane 301 is provided with mounting holes that match the unit guide rail 2.

[0027] Figure 5 This is a schematic diagram of the second insulating beam 4 proposed in this utility model, as shown below. Figure 5As shown, the second insulating beam 4 has two limiting and load-bearing protrusions extending along the first direction on its side, namely limiting and load-bearing protrusion 401 and limiting and load-bearing protrusion 402. The limiting and load-bearing protrusions divide the side of the second insulating beam 4 into three partial surfaces: upper partial surface 403, middle partial surface 404, and lower partial surface 405. The upper partial surface 403 and lower partial surface 405 are provided with unit limiting pin holes and side mounting holes. During assembly, the upper side surface 4011 of the limiting and load-bearing protrusion 401 is fitted to the bottom surface of the unit guide rail 2, and the upper side surface 4011 is provided with mounting holes that match the unit guide rail 2.

[0028] During assembly, the side plate 5 cooperates with the mounting holes corresponding to the upper partial surface 403 and lower partial surface 405 of the second insulating beam 4 to jointly block the wind from the side of the power unit 1 with side ribs.

[0029] Figure 6 , Figure 7 The schematic diagram and cross-sectional view of the limiting pin hole structure proposed in this utility model show that the rear end of the outer shell of the power unit 1 with side ribs is designed with a unit limiting protrusion 102. The unit limiting protrusion 102 is cylindrical in shape and has a bevel at its top. The upper partial surface 403 of the second insulating beam 4 is provided with a unit limiting pin hole 4031 that matches the unit limiting protrusion 102. The unit limiting pin hole 4031 has a countersunk screw hole on the side near the power unit, and the bevel at the entrance of the unit limiting pin hole 4031 is consistent with the bevel of the unit limiting protrusion 102. When the power unit 1 with side ribs is pushed into the unit guide rail 2, the power unit is limited by the interaction between the unit limiting protrusion 102 and the unit limiting pin hole 4031, so as to achieve the limiting position requirement of the power unit 1 with side ribs.

[0030] Figure 8 This is a schematic diagram of the overall assembly of the windbreak structure with side ribs for the power unit proposed in this utility model. Figure 8 As shown, during assembly, the first insulating beam 3, the second insulating beam 4, the unit guide rail 2, and the side plate 5 are installed in sequence. Then, the power unit 1 with side ribs is placed on the mounting guide rail 2 with one end of the side ribs facing inward. The power unit 1 with side ribs slides into the unit guide rail 2 under the action of the limiting protrusion 201 until it slides into the unit limiting pin hole 4031, thus completing the assembly of the power unit with side ribs.

[0031] This utility model also provides a frequency converter, including the aforementioned windproof structure for power units with side ribs. Multiple power units with side ribs within the frequency converter are installed in a row or multiple rows in parallel. The power units with side ribs arranged in the same row along the first direction are arranged in a multi-stage series configuration. The power units with side ribs are connected to each other via windproof side ribs 101 to meet the windproof requirements between units. The cooperation between the side plate 5 and the second insulating beam 4 achieves the side windproof requirement for units arranged in the same row.

[0032] This utility model proposes a windproof structure for a power unit with side ribs. By setting windproof side ribs on the outer shell of the power unit with side ribs, the windproof isolation requirements are met, while eliminating the need for a windproof plate, reducing manufacturing costs, increasing the utilization rate of the internal space of the frequency converter, and reducing the assembly difficulty and overall weight of the frequency converter.

[0033] In this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," and "fixing," etc., should be interpreted broadly. For example, "connection" can mean a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Although specific embodiments of this utility model have been described in detail with reference to the accompanying drawings, this should not be construed as limiting the scope of protection of this patent. Various modifications and variations that can be made by those skilled in the art without inventive effort within the scope described in the claims still fall within the scope of protection of this patent.

Claims

1. A power cell wind deflector structure with edge ribs, comprising: The power unit with edge ribs, unit guide rail, first insulating beam, second insulating beam and side plate are characterized in that the unit guide rail is installed at the bottom of the power unit with edge ribs; the second insulating beam and side plate are installed at the tail of the power unit with edge ribs, and the side plate is installed at the back of the second insulating beam; and the first insulating beam is installed at the front bottom of the unit guide rail.

2. A power cell wind deflector structure with edge ribs as claimed in claim 1, characterised in that, The power unit with edge ribs is provided with wind-blocking edge ribs, which are located at the left and right sides of the tail of the power unit with edge ribs, vertically to the left and right sides and protrude outward along the left and right sides.

3. The power cell wind deflector structure with edge ribs of claim 1, wherein, The upper surface of the unit guide rail is provided with strip-shaped limiting protrusions, which divide the upper surface of the unit guide rail into two local surfaces, and the local surfaces are provided with mounting holes matched with the bottom of the power unit with edge ribs.

4. The power cell wind barrier structure with edge ribs of claim 1, wherein, The first insulating beam is a long strip-shaped beam with a "C" shaped cross section, and the upper mounting surface is provided with mounting hole positions matched with the unit guide rail.

5. The power cell wind barrier structure with edge ribs of claim 1, wherein, The second insulating beam is provided with two limiting load-bearing protrusions extending in the first direction, which are located on the side surface of the second insulating beam, protrude to the side of the power unit with edge ribs, and divide the side surface of the second insulating beam into three local surfaces, and the upper and lower local surfaces of the local surfaces are provided with unit limiting pin holes and side mounting holes.

6. The power cell wind deflector structure with edge ribs of claim 2, wherein, The tail of the power unit with edge ribs is provided with a unit limiting protrusion, which is in the shape of a cylinder as a whole, and the top end is provided with an inclined surface, and the limiting protrusion is matched with the unit limiting pin hole of the second insulating beam.

7. A power cell wind deflector structure with edge ribs according to claim 6, characterised in that, The wind-blocking edge ribs and the unit limiting protrusion are both on the shell of the power unit with edge ribs, and the shell is integrally injection molded.

8. The power cell wind barrier structure with edge ribs of claim 3, wherein, The limiting protrusion of the unit guide rail and the body are integrally injection molded with insulating material.

9. The power cell wind barrier structure with edge ribs of claim 1, wherein, The first insulating beam and the second insulating beam are integrally molded with insulating material.

10. A frequency converter comprising a power cell wind deflector structure according to any one of claims 1 to 9, characterized in that Multiple power units with edge ribs are arranged in one row and multiple rows in parallel; power units with edge ribs arranged in the same row in the first direction adopt a multi-stage series structure, and the power units with edge ribs are adhered to each other through the wind-blocking edge ribs.

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