Power module installation device and converter

Abstract

The utility model provides a power module installation device and a converter, the power module installation device comprises a fixed beam, a fixed structure and a grounding bar, the fixed beam is arranged in a cabinet of the converter, and the fixed beam is used for being connected with one end of each of a plurality of power modules; the fixing structure is arranged on the cabinet and is used for being connected with the other end of the power module; the grounding bar is arranged in the cabinet, the grounding bar is used for being electrically connected with the power modules, and the grounding bar is used for discharging current when the power modules are short-circuited. The two ends of the power module are fixed to the cabinet through the fixing beam and the fixing structure respectively, so that the power module is installed more firmly, and the power module is not prone to displacement when encountering vibration in the working process. The grounding bar is arranged on the cabinet, the plurality of power modules share one grounding bar, and when the power modules are short-circuited, the grounding bar discharges current. Through the arrangement of the grounding bar, the grounding wires of a plurality of power modules do not need to be disassembled in the disassembly process of the power modules, so that the disassembly of the power modules is more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power converters, and in particular to a power module installation device and a converter. Background Art

[0002] The grounding of the power module uses a grounding wire connected to the main grounding bar of the converter. The power module needs to be disassembled for maintenance. The disassembly of the grounding wire is relatively complicated, making the maintenance of the power module not convenient and fast enough. The installation fixing point of the power module is small, the installation connection strength is low, and the reliability is poor, which makes the power module easy to shift during transportation and operation, which may affect the normal use of the wind power converter in serious cases. Therefore, a power module installation device that can easily and quickly disassemble the power module and has a high connection strength is needed to install the power module. Utility Model Content

[0003] The utility model provides a power module installation device and a converter to solve the problems in the prior art that the ground wire of the power module installation device is inconvenient to remove and the power module installation connection strength is low.

[0004] In order to solve the above problems, according to one aspect of the utility model, the utility model provides a power module installation device, including a fixed beam, a fixed structure and a grounding bar, the fixed beam is arranged in the cabinet of the converter, and the fixed beam is used to connect with one end of multiple power modules; the fixed structure is arranged in the cabinet, and the fixed structure is used to connect with the other end of the power module; the grounding bar is arranged in the cabinet, and the grounding bar is used to be electrically connected to multiple power modules, and the grounding bar is used to discharge current when the power module is short-circuited.

[0005] Furthermore, the power module installation device also includes a plurality of grounding plates, the grounding plates correspond to the power modules one by one, the grounding plates are arranged on a side of the power module close to the grounding bar, and the grounding plates are used to abut against the grounding bar.

[0006] Furthermore, the grounding bar and the fixed beam are arranged at intervals.

[0007] Furthermore, the grounding bar is arranged on a side of the fixed beam away from the power module, the fixed beam has a plurality of through holes, the through holes correspond to the grounding plates one by one, and the grounding plates can pass through the through holes to be electrically connected to the grounding bar.

[0008] Furthermore, the grounding bar is arranged on a side of the fixing beam close to the power module.

[0009] Furthermore, the power module mounting device also includes a first fastener, the grounding bar has a first fixing hole, there are multiple first fixing holes, the power module has a second fixing hole, and the first fastener connects a first fixing hole with the corresponding second fixing hole of the power module, so that the grounding bar is electrically connected to the power module.

[0010] Furthermore, the power module mounting device also includes a third fastener, the fixing beam has a fifth fixing hole, the power module has a sixth fixing hole, and the third fastener passes through the fifth fixing hole and the sixth fixing hole to connect the power module to the fixing beam.

[0011] Further, the fixed structure includes a plurality of guide rails, and one end of the power module close to the fixed structure has a slide groove, the slide groove and the guide rail are slidably matched, and the plurality of guide rails correspond to the plurality of power modules one by one; or,

[0012] The fixed structure has a plurality of slide grooves, one end of the power module close to the fixed structure has a guide rail, the slide groove and the guide rail are slidably matched, and the plurality of slide grooves correspond to the plurality of power modules one by one.

[0013] Furthermore, the fixing structure also includes a second fastener, the guide rail has a third fixing hole, the side wall of the slide slot has a fourth fixing hole, the third fixing hole and the fourth fixing hole are arranged correspondingly, and the second fastener passes through the third fixing hole and the fourth fixing hole to fix the guide rail in the slide slot.

[0014] Furthermore, the fixed beam includes a first fixed beam and a second fixed beam, and the first fixed beam and the second fixed beam are respectively connected to two oppositely arranged side surfaces of the power module.

[0015] According to another aspect of the utility model, a converter is provided, comprising a cabinet, a power module and the above-mentioned power module installation device, wherein the power module installation device is used to install the power module in the cabinet.

[0016] The technical solution of the utility model is applied to provide a power module installation device, including a fixed beam, a fixed structure and a grounding bar. The fixed beam is arranged on the cabinet of the converter, and the fixed beam is used to connect with one end of multiple power modules; the fixed structure is arranged on the cabinet, and the fixed structure is used to connect with the other end of the power module; the grounding bar is arranged on the cabinet, and the grounding bar is used to be electrically connected with multiple power modules, and the grounding bar is used to discharge current when the power module is short-circuited. With this solution, the fixed beam fixes one end of the power module to the cabinet of the converter, and the fixed structure fixes the other end of the power module to the cabinet, so that the installation of the power module is more firm and it is not easy to shift when encountering vibration during the working process. The grounding bar is arranged on the cabinet, and multiple power modules share one grounding bar. When the power module is short-circuited, the grounding bar discharges the current. Through the setting of the grounding bar, it is not necessary to remove the grounding wires of multiple power modules during the disassembly of the power module, making the disassembly of the power module more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 A schematic structural diagram of a power module installation device provided in Embodiment 1 of the present utility model is shown;

[0019] Figure 2 Shows Figure 1 A side view of a power module mounting device in FIG.

[0020] Figure 3 Shows Figure 2 A partial enlarged view of the middle A;

[0021] Figure 4 Shows Figure 1 A schematic diagram of the structure of a power module installed by the power module installation device;

[0022] Figure 5 A schematic diagram of the structure of a power module installation device provided in the second embodiment of the present utility model is shown;

[0023] Figure 6 A schematic structural diagram of a power module installation device provided in a fourth embodiment of the present utility model is shown;

[0024] Figure 7 Shows Figure 6 A local enlarged view of point B in FIG.

[0025] The above drawings include the following reference numerals:

[0026] 10. Fixed beam;

[0027] 11. A first fixed beam;

[0028] 12. Second fixed beam;

[0029] 20. Fixed structure;

[0030] 21. Guide rails;

[0031] 31. Grounding bar;

[0032] 32. Grounding plate;

[0033] 33. A first fastener;

[0034] 40. Power module;

[0035] 41. Chute;

[0036] 42. fourth fixing hole;

[0037] 50. Cabinet. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0039] like Figures 1 to 7 As shown, embodiment 1 of the utility model provides a power module installation device, including a fixed beam 10, a fixed structure 20 and a grounding bar 31, the fixed beam 10 is arranged in the cabinet of the converter, and the fixed beam 10 is used to connect with one end of multiple power modules 40; the fixed structure 20 is arranged in the cabinet, and the fixed structure 20 is used to connect with the other end of the power module 40; the grounding bar 31 is arranged in the cabinet 50, and the grounding bar 31 is used to be electrically connected to the multiple power modules 40, and the grounding bar 31 is used to discharge current when the power module 40 is short-circuited.

[0040] With this solution, the fixed beam 10 fixes one end of the power module to the cabinet of the converter, and the fixed structure 20 fixes the other end of the power module to the cabinet, so that the installation of the power module is more secure and it is not easy to shift when encountering vibration during operation. The grounding bar 31 is set on the cabinet, and multiple power modules share one grounding bar 31. When the power module is short-circuited, the grounding bar 31 discharges the current. Through the setting of the grounding bar 31, it is not necessary to remove the grounding wires of multiple power modules during the disassembly of the power module, making the disassembly of the power module more convenient and quick.

[0041] like Figure 1 As shown, the power module installation device also includes a plurality of grounding plates 32 , which correspond to the power modules 40 one by one. The grounding plates 32 are arranged on one side of the power module 40 close to the grounding bar 31 , and are used to abut against the grounding bar 31 .

[0042] With this arrangement, the grounding plate 32 abuts against the grounding bar 31 so that the grounding plate 32 and the grounding bar 31 are electrically connected. When a short circuit occurs in the power module 40 , the current of the power module 40 is guided to the grounding bar 31 through the grounding plate 32 , and the grounding bar 31 discharges the current.

[0043] like Figure 1 As shown, in the first embodiment of the present invention, the fixing beam 10 and the grounding bar 31 are arranged at intervals on the cabinet 50 .

[0044] like Figure 5 As shown, in the second embodiment of the present invention, the grounding bar 31 is arranged on the side of the fixed beam 10 away from the power module 40, and the fixed beam 10 has a plurality of through holes, which correspond one to one with the grounding plates 32, and the grounding plates 32 can pass through the through holes to be electrically connected to the grounding bar 31.

[0045] In this way, when the grounding bar 31 is set on the side of the fixed beam 10 away from the power module 40, the grounding plate 32 passes through the through hole on the fixed beam 10 and abuts against the grounding bar 31, so that the grounding plate 32 is electrically connected to the grounding bar 31 to discharge the current when a short circuit occurs in the power module 40.

[0046] In the third embodiment of the present invention, the grounding bar 31 is disposed on the side of the fixed beam 10 close to the power module 40. In this way, the grounding bar 31 is disposed on the side of the fixed beam 10 close to the power module 40, and there is no need to provide a through hole in the fixed beam 10, and the grounding sheet 32 ​​can directly contact the grounding bar 31.

[0047] like Figure 6 and Figure 7 As shown, in the fourth embodiment of the present utility model, the power module mounting device also includes a first fastener 33, the grounding bar 31 has a first fixing hole, there are multiple first fixing holes, the power module 40 has a second fixing hole, and the first fastener 33 connects a first fixing hole with the corresponding second fixing hole of the power module, so that the grounding bar 31 is electrically connected to the power module 40.

[0048] In this configuration, the first fastener 33 connects a first fixing hole with a second fixing hole of the corresponding power module, so that the grounding bar 31 abuts against the power module 40, thereby realizing electrical connection between the grounding bar 31 and the power module 40. When a short circuit occurs in the power module 40, the current is discharged through the grounding bar 31.

[0049] Furthermore, the power module mounting device also includes a third fastener, the fixing beam 10 has a fifth fixing hole, the power module 40 has a sixth fixing hole, and the third fastener passes through the fifth fixing hole and the sixth fixing hole to connect the power module 40 to the fixing beam 10 .

[0050] In this way, the third fastener connects the power module 40 to the fixed beam 10 to fix the end of the power module 40 away from the guide rail 21, so that the power module 40 will not shift during the transportation or operation of the converter.

[0051] like Figure 1As shown, the fixed structure 20 includes a plurality of guide rails 21, and the end of the power module 40 close to the fixed structure 20 has a slide groove 41, the slide groove 41 slides with the guide rail 21, and the plurality of guide rails 21 correspond one-to-one to the plurality of power modules 40; or, the fixed structure 20 has a plurality of slide grooves 41, and the end of the power module 40 close to the fixed structure 20 has a guide rail 21, the slide groove 41 slides with the guide rail 21, and the plurality of slide grooves 41 correspond one-to-one to the plurality of power modules 40.

[0052] In this way, the guide rail 21 and the slide groove 41 are slidably matched to connect the power module 40 to the fixed structure 20, so that the power module 40 is fixed more firmly and is not easily displaced. The guide rail 21 can be set on the cabinet 50, and the slide groove 41 can be set on the power module 40, or the slide groove 41 can be set on the fixed structure 20, and the guide rail 21 can be set on the power module 40 to connect the power module 40 to the fixed structure 20.

[0053] Furthermore, the fixing structure 20 also includes a second fastener, the guide rail 21 has a third fixing hole, the side wall of the slide groove 41 has a fourth fixing hole 42, the third fixing hole and the fourth fixing hole 42 are arranged correspondingly, and the second fastener passes through the third fixing hole and the fourth fixing hole 42 to fix the guide rail 21 in the slide groove 41.

[0054] With such a configuration, when the guide rail 21 is connected to the slide slot 41, the third fixing hole can be connected to the fourth fixing hole through the second fastener to fix the connection between the guide rail 21 and the slide slot 41, so that the power module 40 will not shift during the operation or transportation of the inverter.

[0055] like Figure 5 As shown, the fixed beam 10 includes a beam body and a flange, the flange is arranged along the edge of the beam body, the flange has a seventh fixing hole, and the fixed beam is connected to the cabinet 50 through the seventh fixing hole.

[0056] In this way, the flange strengthens the structure of the beam body, so that the fixed beam is not easily deformed during use. At the same time, a seventh fixing hole is provided on the flange to fix the fixed beam 10 on the cabinet 50. In a specific embodiment of the utility model, the flange and the beam body are integrally formed by a sheet metal process.

[0057] like Figure 1 As shown, the fixing beam 10 includes a first fixing beam 11 and a second fixing beam 12 , and the first fixing beam 11 and the second fixing beam 12 are respectively connected to two oppositely disposed side surfaces of the power module 40 .

[0058] In this configuration, the first fixing beam 11 and the second fixing beam 12 are respectively connected to two oppositely disposed side surfaces of the power module 40 , so that both sides of the power module 40 are fixed to the cabinet 50 , so that the power module 40 will not shift.

[0059] According to another aspect of the present invention, a converter is provided, including a cabinet 50 , a power module 40 and the above-mentioned power module installation device, wherein the power module installation device is used to install the power module 40 on the cabinet 50 .

[0060] In this way, the power module installation device installs the power module 40 on the cabinet 50 .

[0061] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0062] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0063] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0064] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0065] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0066] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

Claims

1. A power module installation device, characterized in that: include: A fixed beam (10), the fixed beam (10) being arranged in a cabinet (50) of the converter, the fixed beam (10) being used to be connected to one end of a plurality of power modules (40); a fixed structure (20), the fixed structure (20) being arranged on the cabinet (50), and the fixed structure (20) being used to be connected to the other end of the power module (40); A grounding bar (31), the grounding bar (31) being arranged on the cabinet (50), the grounding bar (31) being used for being electrically connected to a plurality of the power modules (40), and the grounding bar (31) being used for discharging current when the power modules (40) are short-circuited.

2. The power module installation device according to claim 1, characterized in that: The power module installation device further comprises a plurality of grounding plates (32), wherein the grounding plates (32) correspond to the power modules (40) one by one, and the grounding plates (32) are arranged on a side of the power module (40) close to the grounding bar (31), and the grounding plates (32) are used to abut against the grounding bar (31).

3. The power module installation device according to claim 2, characterized in that: The grounding bar (31) and the fixed beam (10) are arranged at intervals.

4. The power module installation device according to claim 2, characterized in that: The grounding bar (31) is arranged on a side of the fixed beam (10) away from the power module (40), the fixed beam (10) has a plurality of through holes, the through holes correspond to the grounding plates (32) one by one, and the grounding plates (32) can pass through the through holes to be electrically connected to the grounding bar (31).

5. The power module installation device according to claim 2, characterized in that: The grounding bar (31) is arranged on a side of the fixed beam (10) close to the power module (40).

6. The power module installation device according to claim 1, characterized in that: The power module installation device further comprises a first fastener (33), the grounding bar (31) has a first fixing hole, the first fixing holes are multiple, the power module (40) has a second fixing hole, and the first fastener (33) connects one of the first fixing holes to the corresponding second fixing hole of the power module, so that the grounding bar (31) is electrically connected to the power module (40).

7. The power module installation device according to claim 1, characterized in that: The power module mounting device further comprises a third fastener, the fixing beam (10) has a fifth fixing hole, the power module (40) has a sixth fixing hole, and the third fastener passes through the fifth fixing hole and the sixth fixing hole to connect the power module (40) to the fixing beam (10).

8. The power module installation device according to claim 1, characterized in that: The fixed structure (20) comprises a plurality of guide rails (21), one end of the power module (40) close to the fixed structure (20) comprises a slide groove (41), the slide groove (41) and the guide rail (21) are slidably matched, and the plurality of guide rails (21) correspond to the plurality of power modules (40) in a one-to-one manner; or, The fixed structure (20) has a plurality of slide grooves (41), one end of the power module (40) close to the fixed structure (20) has a guide rail (21), the slide groove (41) is slidably matched with the guide rail (21), and the plurality of slide grooves (41) correspond one-to-one to the plurality of power modules (40).

9. The power module installation device according to claim 8, characterized in that: The fixing structure (20) further comprises a second fastener, the guide rail (21) has a third fixing hole, the side wall of the slide groove (41) has a fourth fixing hole (42), the third fixing hole and the fourth fixing hole (42) are arranged correspondingly, and the second fastener passes through the third fixing hole and the fourth fixing hole (42) to fix the guide rail (21) in the slide groove (41).

10. The power module installation device according to claim 1, characterized in that: The fixed beam (10) comprises a first fixed beam (11) and a second fixed beam (12); the first fixed beam (11) and the second fixed beam (12) are respectively connected to two oppositely arranged side surfaces of the power module (40).

11. A converter, characterized in that: It comprises a cabinet (50), a power module (40) and a power module mounting device according to any one of claims 1 to 10, wherein the power module mounting device is used to mount the power module (40) on the cabinet (50).

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