Power unit support, power unit mounting structure, and frequency converter cabinet

Abstract

The utility model embodiment provides a kind of power unit support, power unit mounting structure and frequency converter cabinet, power unit support includes: first connecting portion, support part and first limiting portion;First connecting portion, support part and first limiting portion are all flat plate structure;Support part is connected with the lower end of first connecting portion and the lower end of first limiting portion respectively, support part is perpendicular to first connecting portion and first limiting portion, and first connecting portion is parallel with first limiting portion, the first side of first connecting portion is opposite with the first side of first limiting portion;Second side of first connecting portion is structured as being connected with power unit, the first side of first connecting portion and the second side of first connecting portion are opposite.The power unit support is set in the present application, when the installation power unit mounting structure constituted by power unit support and power unit is disassembled, just by the mode of pushing and pulling power unit support, disassembly can be realized along the direction of guide rail, simple operation.

Description

Technical Field

[0001] This utility model relates to the field of industrial process automation control technology, and in particular to a power unit bracket, a power unit mounting structure, and a frequency converter cabinet. Background Technology

[0002] In existing frequency converter cabinets, the power cells are supported within the cabinet by insulators. During maintenance and repair, the phase modules can only be lifted out using specialized lifting tools, requiring specialized lifting equipment and offering only one method of disassembly and assembly. When lifting, the supporting insulators must first be loosened before the power cell can be lifted out using specialized lifting tools. Controlling the lifting position requires manual pulling and adjustment by workers, which is dangerous. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a power unit bracket, a power unit mounting structure, and a frequency converter cabinet, thereby at least solving or mitigating the problems.

[0004] According to a first aspect of the present invention, a power unit bracket is provided, comprising: a first connecting portion, a supporting portion, and a first limiting portion; the first connecting portion, the supporting portion, and the first limiting portion are all flat plate structures; the supporting portion is connected to the lower end of the first connecting portion and the lower end of the first limiting portion respectively, the supporting portion is perpendicular to the first connecting portion and the first limiting portion, and the first connecting portion is parallel to the first limiting portion, with a first side surface of the first connecting portion facing the first side surface of the first limiting portion; a second side surface of the first connecting portion is configured to connect to a power unit, with the first side surface of the first connecting portion facing the second side surface of the first connecting portion; when the power unit bracket and the power unit are connected and installed in a frequency converter cabinet, the power unit bracket is located on a support beam included in the frequency converter cabinet, the support beam supports the supporting portion, the second side surface of the first limiting portion is in contact with a guide rail disposed on the support beam, and the first side surface of the first limiting portion faces the second side surface of the first limiting portion.

[0005] Optionally, when the power unit bracket and the power unit are connected and installed in the inverter cabinet, the first limiting part abuts against the baffle included in the inverter cabinet, the baffle is connected to one end of the guide rail, and the baffle is perpendicular to the first limiting part and the support part.

[0006] Optionally, the power unit bracket further includes: a hoisting part and a second limiting part; both the hoisting part and the second limiting part are flat plate structures; the hoisting part is connected to the upper end of the first connecting part and the upper end of the second limiting part respectively, the hoisting part is perpendicular to the first connecting part and the second limiting part, and the first connecting part is parallel to the second limiting part, the first side of the first connecting part is parallel to the first side of the second limiting part; the upper end of the hoisting part is provided with at least two lifting rings, and the lifting rings are connected to the upper surface of the hoisting part.

[0007] Optionally, the distance between the first side of the first connecting portion and the first side of the second limiting portion is greater than the width of the fork, wherein the fork is a load-bearing portion of a forklift device for forking the power unit.

[0008] Optionally, the power unit bracket further includes: at least one push-pull portion, the push-pull portion being connected to a first side of the support portion, and the push-pull portion being perpendicular to the first connecting portion and the support portion.

[0009] According to a second aspect of the present invention, a power unit mounting structure is provided for use in a frequency converter cabinet, including a power unit and two power unit brackets as described in the first aspect of the present invention. The second side of the first connecting portion of the first power unit bracket is connected to the first end face of the power unit, and the second side of the first connecting portion of the second power unit bracket is connected to the second end face of the power unit. The first end face and the second end face are opposite to each other.

[0010] According to a third aspect of the present invention, a frequency converter cabinet is provided, characterized in that it includes a cabinet body and a power unit mounting structure as described in the second aspect of the present invention; the cabinet body includes a support beam arranged in a horizontal direction, and at least two guide rails are provided on the support beam, the extension direction of the guide rails being perpendicular to the extension direction of the support beam; the power unit mounting structure is located on the support beam, and the support beam is used to support the power unit mounting structure; the second sides of the two first limiting portions included in the power unit mounting structure are abutted against different guide rails.

[0011] Optionally, the cabinet includes a plurality of support beams arranged in a vertical direction, and each support beam is provided with at least one power unit mounting structure.

[0012] Optionally, the guide rail includes a fixing part and a guiding part, and the inverter cabinet also includes a baffle; the first end of the guiding part is connected to the baffle, the second end of the guiding part is connected to the fixing part, and the fixing part is fixedly connected to the support beam; the second sides of the two first limiting parts included in the power unit mounting structure are fitted with different guide rails provided on the support beam, and the two first limiting parts included in the power unit mounting structure abut against different baffles.

[0013] Optionally, the support beam has a first sliding plate on its end face facing the power unit mounting structure, and the guide portion has a second sliding plate on its end face facing the second side of the first limiting portion included in the power unit mounting structure.

[0014] As can be seen from the above technical solution, by setting up a power unit bracket, when installing the power unit mounting structure composed of the power unit bracket and the power unit, the guide rail on the support beam limits the first limiting part, so the position of the power unit mounting structure is fixed during installation, which reduces the installation difficulty. When disassembling and installing the power unit mounting structure, the power unit mounting structure can be detached along the direction of the guide rail simply by pushing and pulling, which is simple to operate. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of a frequency converter cabinet according to an embodiment of this application;

[0017] Figure 2 This is a schematic diagram of a power unit mounting structure installed on a support beam according to an embodiment of this application;

[0018] Figure 3 This is a schematic diagram of a power unit bracket according to an embodiment of this application;

[0019] Figure 4 This is a schematic diagram of a power unit bracket according to another embodiment of this application;

[0020] Figure 5 This is a schematic diagram of a power unit bracket according to yet another embodiment of this application;

[0021] Figure 6 This is a front view of a power unit mounting structure mounted on a support beam according to an embodiment of this application.

[0022] List of reference numerals in the attached diagram:

[0023] 10: Power unit bracket; 11: First connecting part; 12: Support part

[0024] 13: First limiting part; 14: Lifting part; 15: Second limiting part

[0025] 16: Lifting ring; 17: Push-pull section; 20: Power unit mounting structure

[0026] 21: Power unit; 30: Inverter cabinet; 31: Support beam

[0027] 32: Guide rail; 33: Baffle; 34: Cabinet.

[0028] 321: Fixing part; 322: Guiding part Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions in the embodiments of this application, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art should fall within the protection scope of this utility model.

[0030] Figure 1 This is a schematic diagram of a frequency converter cabinet according to one embodiment of this application. Figure 2 This is a schematic diagram of a power unit mounting structure installed on a support beam according to one embodiment of this application. Figure 3 This is a front view of a power unit mounting structure mounted on a support beam according to an embodiment of this application, as shown below. Figure 1-2 As shown, one embodiment of this application provides a frequency converter cabinet 30, including a cabinet body 34 and at least one power unit mounting structure 20. The cabinet body 34 includes a support beam 31 arranged in a horizontal direction, and at least two guide rails 32 are provided on the support beam 31, with the extension direction of the guide rails 32 perpendicular to the extension direction of the support beam 31. The power unit mounting structure 20 is located on the support beam 31, and the support beam 31 is used to support the power unit mounting structure 20. The second sides of the two first limiting portions 13 included in the power unit mounting structure 20 are abutted against different guide rails 32.

[0031] During the installation of the power unit mounting structure 20 into the inverter cabinet 30, the second sides of the two first limiting parts 13 of the power unit mounting structure 20 are aligned with different guide rails 32. Then, the power unit mounting structure 20 is pushed to stably position itself on the support beam 31, thus completing the installation of the power unit mounting structure 20. Compared to traditional hoisting methods, this installation method is simpler, and the installation position is limited by the two guide rails 32, reducing the likelihood of installation problems.

[0032] It should be noted that, Figure 1 The inverter cabinet 30 shown has three power unit mounting structures 20 installed in it, but this application does not limit the number of power unit mounting structures 20 installed in the inverter cabinet 30. The connection method of each component in the power unit mounting structure 20 installed in the inverter cabinet 30 is the same as that of each component in the inverter cabinet 30.

[0033] Specifically, the cabinet 34 includes multiple support beams 31 arranged in a vertical direction, and each support beam 31 is provided with at least one power unit mounting structure 20.

[0034] A power unit mounting structure 20 can be installed on each support beam 31, such as Figure 1 As shown in the figure, multiple power unit mounting structures 20 can also be provided on each support beam 31, and the power unit mounting structures 20 provided on the same support beam 31 are arranged sequentially along the extension direction of the support beam 31.

[0035] Specifically, such as Figure 6 As shown, the guide rail 32 includes a fixing part 321 and a guiding part 322, and the inverter cabinet 30 also includes a baffle 33. The first end of the guiding part 322 is connected to the baffle 33, and the second end of the guiding part 322 is connected to the fixing part 321. The fixing part 321 is fixedly connected to the support beam 31. The second sides of the two first limiting parts 13 of the power unit mounting structure 20 are in contact with different guide rails 32 provided on the support beam 31, and the two first limiting parts 13 of the power unit mounting structure 20 abut against different baffles 33.

[0036] During the installation of the power unit mounting structure 20 in the inverter cabinet 30, the second sides of the two first limiting parts 13 of the power unit mounting structure 20 are aligned with different guide rails 32. Then, the power unit mounting structure 20 is pushed until the two first limiting parts 13 of the power unit mounting structure 20 abut against different baffles 33, thus completing the installation of the power unit mounting structure 20. By setting baffles 33, the installation difficulty of the power unit mounting structure 20 can be further reduced.

[0037] Specifically, the support beam 31 has a first sliding plate on its end face facing the power unit mounting structure 20, and the guide portion 322 has a second sliding plate on its end face facing the second side of the first limiting portion 13 included in the power unit mounting structure 20.

[0038] Since the support beam 31 and the support portion 12 are typically made of metal or a material with high hardness, friction between the support beam 31 and the support portion 12 may cause damage when the power unit mounting structure 20 is moved on the support beam 31. Therefore, the first sliding plate can protect the support beam 31 and the support portion 12. Similarly, the first limiting portion 13 and the guide portion 322 are also typically made of metal or a material with high hardness. Therefore, friction between the first limiting portion 13 and the guide portion 322 may cause damage when the power unit mounting structure 20 is moved along the extension direction of the guide portion 322. Therefore, the second sliding plate can protect the first limiting portion 13 and the guide portion 322.

[0039] The power unit mounting structure 20 installed in the inverter cabinet 30 can be referenced. Figure 2 This application provides a power unit mounting structure 20 for use in a frequency converter cabinet 30, including a power unit 21 and two power unit brackets 10. The second side of the first connecting part 11 of the first power unit bracket 10 is connected to the first end face of the power unit 21, and the second side of the first connecting part 11 of the second power unit bracket 10 is connected to the second end face of the power unit 21. The first end face and the second end face are opposite to each other.

[0040] By setting a power unit bracket 10 on the first end face and the second end face opposite to the power unit 21, the power unit mounting structure 20 can be made symmetrical. In this way, during transportation and installation, the power unit mounting structure 20 can be more easily subjected to relatively balanced external forces, thereby protecting the power unit 21.

[0041] The following is a detailed description of the power unit bracket 10 in the power unit mounting structure 20.

[0042] The power unit bracket 10 in the power unit mounting structure 20 can be referred to Figure 3One embodiment of this application provides a power unit bracket 10, including: a first connecting portion 11, a supporting portion 12, and a first limiting portion 13. The first connecting portion 11, the supporting portion 12, and the first limiting portion 13 are all flat plate structures. The supporting portion 12 is connected to the lower end of the first connecting portion 11 and the lower end of the first limiting portion 13, respectively. The supporting portion 12 is perpendicular to the first connecting portion 11 and the first limiting portion 13, and the first connecting portion 11 is parallel to the first limiting portion 13. The first side surface of the first connecting portion 11 is opposite to the first side surface of the first limiting portion 13. The second side surface of the first connecting portion 11 is configured to connect to the power unit 21, and the first side surface of the first connecting portion 11 and the second side surface of the first connecting portion 11 are opposite to each other. When the power unit bracket 10 and the power unit 21 are connected and installed in the inverter cabinet 30, the power unit bracket 10 is located on the support beam 31 included in the inverter cabinet 30, and the support beam 31 supports the support part 12. The second side of the first limiting part 13 is in contact with the guide rail 32 provided on the support beam 31, and the first side of the first limiting part 13 and the second side of the first limiting part 13 are opposite to each other.

[0043] Specifically, when the power unit bracket 10 and the power unit 21 are connected and installed in the inverter cabinet 30, the first limiting part 13 abuts against the baffle 33 included in the inverter cabinet 30. The baffle 33 is connected to one end of the guide rail 32, and the baffle 33 is perpendicular to the first limiting part 13 and the support part 12.

[0044] During the installation of the power unit mounting structure 20 in the inverter cabinet 30, the second sides of the two first limiting parts 13 of the power unit mounting structure 20 are aligned with different guide rails 32. Then, the power unit mounting structure 20 is pushed until the two first limiting parts 13 of the power unit mounting structure 20 abut against different baffles 33, thus completing the installation of the power unit mounting structure 20. By setting baffles 33, the installation difficulty of the power unit mounting structure 20 can be further reduced.

[0045] In this embodiment, by setting the power unit bracket 10, when installing the power unit mounting structure composed of the power unit bracket and the power unit, the guide rail 32 on the support beam 31 limits the first limiting part 13. Therefore, the position of the power unit mounting structure 20 is fixed during installation, which reduces the installation difficulty. When disassembling the power unit mounting structure 20, it is only necessary to push and pull to make the power unit mounting structure 20 detach along the direction of the guide rail 32, which is simple to operate.

[0046] In one possible implementation, such as Figure 4As shown, the power unit bracket 10 further includes a hoisting part 14 and a second limiting part 15. Both the hoisting part 14 and the second limiting part 15 are flat plate structures. The hoisting part 14 is connected to the upper end of the first connecting part 11 and the upper end of the second limiting part 15, respectively. The hoisting part 14 is perpendicular to the first connecting part 11 and the second limiting part 15, and the first connecting part 11 is parallel to the second limiting part 15. The first side of the first connecting part 11 is parallel to the first side of the second limiting part 15. At least two lifting rings 16 are provided at the upper end of the hoisting part 14, and the lifting rings 16 are connected to the upper surface of the hoisting part 14.

[0047] Specifically, the distance between the first side of the first connecting part 11 and the first side of the second limiting part 15 is greater than the width of the fork, wherein the fork is the bearing part of the fork-loading device for the fork-loading power unit 21.

[0048] The second limiting part 15 enables the power unit bracket 10 to be forked. When installing the power unit mounting structure 20, it can be forked into the inverter cabinet 30 using a forklift or similar device. During forklifting, the forks of the forklift or similar device extend between the first side of the first connecting part 11 and the first side of the second limiting part 15. Then, the forklift or similar device raises the height of the forks so that the forks contact the lower end of the lifting part 14. By continuing to raise the height of the forks, the forks can drive the power unit mounting structure 20 to move.

[0049] In this embodiment of the application, by setting up a lifting part 14 and at least two lifting rings 16 at the upper end of the lifting part 14, the power unit bracket 10 can be lifted. When lifting the power unit installation structure 20, it is only necessary to pass the lifting tool through the lifting rings 16 and fix it to achieve the lifting of the power unit installation structure 20. The lifting tool is easy to assemble and disassemble, and the lifting position is fixed, which is convenient for operation.

[0050] In one possible implementation, such as Figure 5 As shown, the power unit bracket 10 further includes at least one push-pull portion 17, which is connected to the first side of the support portion 12 and is perpendicular to the first connecting portion 11 and the support portion 12.

[0051] When disassembling or installing the power unit mounting structure 20, the operator can apply external force to the power unit bracket 10 by pushing and pulling the push-pull part 17 to control the displacement of the power unit mounting structure 20 along the direction of the guide rail 32, thereby realizing the disassembly or installation of the power unit mounting structure 20.

[0052] Figure 5 The power unit mounting structure 20, formed by the combination of the power unit bracket 10 and the power unit 21, is shown in the front view on the support beam 31. Figure 6 As shown, it can be seen that in Figure 6 In this installation, the power unit mounting structure 20 is installed along the guide rail 32 from back to front. When the operator installs the power unit mounting structure 20, it is first transported to a position where the second sides of the two first limiting portions 13 of the power unit mounting structure 20 are aligned with different guide rails 32. Then, the operator applies a force along the guide rail 32 from back to front to the push-pull portion 17, causing the power unit mounting structure 20 to move from back to front along the guide rail 32 until the two first limiting portions 13 of the power unit mounting structure 20 abut against different baffles 33, thus completing the installation of the power unit mounting structure 20.

[0053] In this embodiment of the application, by providing the push-pull part 17, it is convenient for the staff to push and pull the power unit bracket 10 when disassembling or installing the power unit mounting structure 20, thereby further reducing the difficulty of operation for the staff.

[0054] It should be noted that not all steps and modules in the above processes and system structure diagrams are mandatory; some steps or modules can be omitted as needed. The execution order of each step is not fixed and can be adjusted as required. The system structure described in the above embodiments can be a physical structure or a logical structure; that is, some modules may be implemented by the same physical entity, or some modules may be implemented by multiple physical entities, or they may be jointly implemented by certain components in multiple independent devices.

[0055] In this patent application, nouns and pronouns relating to people are not limited to specific genders.

[0056] In the above embodiments, the hardware modules can be implemented mechanically or electrically. For example, a hardware module may include permanent dedicated circuitry or logic (such as a dedicated processor, FPGA, or ASIC) to perform the corresponding operations. The hardware module may also include programmable logic or circuitry (such as a general-purpose processor or other programmable processor), which can be temporarily configured by software to perform the corresponding operations. The specific implementation method (mechanical, dedicated permanent circuitry, or temporarily configured circuitry) can be determined based on cost and time considerations.

[0057] The present application has been shown and described in detail above with reference to the accompanying drawings and preferred embodiments. However, the present application is not limited to these disclosed embodiments. Based on the above multiple embodiments, those skilled in the art will know that more embodiments of the present application can be obtained by combining the code review methods in the different embodiments above. These embodiments are also within the protection scope of the present application.

Claims

1. A power unit holder (10) characterized by, include: The first connecting part (11), the supporting part (12), and the first limiting part (13); The first connecting part (11), the supporting part (12) and the first limiting part (13) are all flat plate structures; The support part (12) is connected to the lower end of the first connecting part (11) and the lower end of the first limiting part (13) respectively. The support part (12) is perpendicular to the first connecting part (11) and the first limiting part (13), and the first connecting part (11) is parallel to the first limiting part (13). The first side of the first connecting part (11) is opposite to the first side of the first limiting part (13). The second side of the first connecting part (11) is configured to be connected to the power unit (21), and the first side of the first connecting part (11) and the second side of the first connecting part (11) are opposite to each other; When the power unit bracket (10) and the power unit (21) are connected and installed in the inverter cabinet (30), the power unit bracket (10) is located on the support beam (31) included in the inverter cabinet (30), and the support part (12) is supported by the support beam (31). The second side of the first limiting part (13) is in contact with the guide rail (32) provided on the support beam (31), and the first side of the first limiting part (13) and the second side of the first limiting part (13) are opposite to each other.

2. The power unit holder (10) according to claim 1, characterized in that When the power unit bracket (10) and the power unit (21) are connected and installed in the inverter cabinet (30), the first limiting part (13) abuts against the baffle (33) included in the inverter cabinet (30), the baffle (33) is connected to one end of the guide rail (32), and the baffle (33) is perpendicular to the first limiting part (13) and the support part (12).

3. The power unit holder (10) according to claim 1, characterized in that The power unit bracket (10) further includes: a hoisting part (14) and a second limiting part (15); Both the hoisting part (14) and the second limiting part (15) are flat plate structures; The hoisting part (14) is connected to the upper end of the first connecting part (11) and the upper end of the second limiting part (15) respectively. The hoisting part (14) is perpendicular to the first connecting part (11) and the second limiting part (15), and the first connecting part (11) is parallel to the second limiting part (15). The first side of the first connecting part (11) is parallel to the first side of the second limiting part (15). The upper end of the hoisting part (14) is provided with at least two lifting rings (16), and the lifting rings (16) are connected to the upper surface of the hoisting part (14).

4. The power unit holder (10) according to claim 3, characterized in that The distance between the first side of the first connecting part (11) and the first side of the second limiting part (15) is greater than the width of the fork, wherein the fork is a bearing part of a fork-mounting device for mounting the power unit (21).

5. The power unit holder (10) according to claim 4, characterized in that The power unit bracket (10) further includes at least one push-pull portion (17), which is connected to a first side of the support portion (12) and is perpendicular to the first connecting portion (11) and the support portion (12).

6. A power unit mounting structure (20) applied to an inverter cabinet (30), characterized by, The device includes a power unit (21) and two power unit brackets (10) as described in any one of claims 1-5. The second side of the first connecting portion (11) of the first power unit bracket (10) is connected to the first end face of the power unit (21), and the second side of the first connecting portion (11) of the second power unit bracket (10) is connected to the second end face of the power unit (21). The first end face is opposite to the second end face.

7. A frequency converter cabinet (30), characterized in that The cabinet (34) and the power unit mounting structure (20) as described in claim 6; The cabinet (34) includes a support beam (31) arranged in a horizontal direction, and at least two guide rails (32) are provided on the support beam (31), the extension direction of the guide rails (32) being perpendicular to the extension direction of the support beam (31); The power unit mounting structure (20) is located on the support beam (31), and the support beam (31) is used to support the power unit mounting structure (20); The second sides of the two first limiting portions (13) of the power unit mounting structure (20) are fitted with different guide rails (32).

8. The frequency changer cabinet (30) according to claim 7, characterized in that The cabinet (34) includes a plurality of support beams (31) arranged in a vertical direction, and each support beam (31) is provided with at least one power unit mounting structure (20).

9. The frequency changer cabinet (30) of claim 7, characterized in that The guide rail (32) includes a fixing part (321) and a guiding part (322), and the inverter cabinet (30) also includes a baffle (33); The first end of the guide part (322) is connected to the baffle (33), the second end of the guide part (322) is connected to the fixing part (321), and the fixing part (321) is fixedly connected to the support beam (31); The second side of the two first limiting parts (13) of the power unit mounting structure (20) is in contact with different guide rails (32) provided on the support beam (31), and the two first limiting parts (13) of the power unit mounting structure (20) abut against different baffles (33).

10. The frequency changer cabinet (30) of claim 9, characterized in that The support beam (31) includes a first sliding plate on its end face facing the power unit mounting structure (20), and the guide portion (322) includes a second sliding plate on its end face facing the second side of the first limiting portion (13) included in the power unit mounting structure (20).

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