Fixing structure of frequency converter

Abstract

The utility model relates to a fixing structure of a frequency converter, comprising a cabinet, a fixing plate and a plurality of baffle plates, the fixing plate is fixedly arranged in the cabinet, the fixing plate is provided with a rectification wall, the rectification wall is provided with rectifiers arranged up and down, the plurality of baffle plates are successively connected and fixed from the top to the bottom end face and are in a step shape, and the baffle plates are arranged in the cabinet. The baffle plates cover the fixed plate, a table top is formed at the joint between the two baffle plates, a through hole is formed in the table top, a three-phase power supply input terminal is arranged on the plate surface of the baffle plate close to the lower surface, and the three-phase power supply input terminal is connected with the rectifier through the through hole. The number of the baffles can be increased or decreased according to actual requirements. When the rectifier needs to be added, only the baffle needs to be correspondingly added, and corresponding through holes and electrical connections are arranged on the newly added baffle. And the flexibility and the expandability of the frequency converter structure are improved.

Description

Technical Field

[0001] The utility model relates to the field of frequency converters, in particular to a fixing structure of a frequency converter. Background Art

[0002] As an important power conversion device, frequency converter is widely used in various industrial control systems to adjust the speed and power of motors.

[0003] As an important component of the inverter, the number and arrangement of rectifiers are often determined when designing the inverter cabinet, making it difficult to flexibly adjust them according to actual needs. Utility Model Content

[0004] In view of the above situation, it is necessary to provide a fixed structure of an inverter that solves at least one of the above problems, including a chassis, a fixed plate and multiple baffles, the fixed plate is fixed in the chassis, the fixed plate is provided with a rectifier wall, the rectifier wall is provided with rectifiers arranged upper and lower, and multiple baffles are connected and fixed in sequence along the upper to lower end surfaces in a stepped shape, the baffle covers the fixed plate, and the connection between the two baffles forms a table, the table is provided with a through hole, and the plate surface close to the baffle below is provided with a three-phase power input terminal, and the three-phase power input terminal is connected to the rectifier through a through hole.

[0005] Preferably, a connecting plate is further provided at the connection between the two baffles, the connecting plate is provided with a through hole adapted to the through hole, and both ends of the connecting plate are respectively threadedly connected to the two baffles.

[0006] Preferably, the connector between the three-phase power input terminal and the rectifier is an iron sheet with a thickness of 0.5 mm to 0.7 mm.

[0007] Preferably, a positioning column is provided on the plate surface of the baffle, and the positioning column is fixedly connected to the connecting member.

[0008] Preferably, the side panels on both sides of the chassis are provided with fixed horizontal columns arranged from top to bottom, and the fixed plate and both sides of the baffle are fixedly provided on the fixed horizontal columns.

[0009] Preferably, a water cooling plate is also provided on one side behind the fixing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] 1. Chassis; 2. Fixing plate; 21. Rectifier wall; 3. Baffle; 31. Table; 32. Through hole; 4. Rectifier; 5. Three-phase power input terminal; 6. Connecting plate; 61. Through hole; 62. Connector; 7. Positioning column; 8. Fixed horizontal column; 9. Water cooling plate.

[0011] Figure 1It is a structural schematic diagram of the chassis of an embodiment of the utility model from a first perspective.

[0012] Figure 2 It is a structural schematic diagram of the chassis of an embodiment of the utility model from a second perspective.

[0013] Figure 3 It is a structural schematic diagram of a baffle according to an embodiment of the present utility model.

[0014] Figure 4 It is a structural schematic diagram of a connecting plate according to an embodiment of the present utility model.

[0015] Figure 5 It is a structural schematic diagram of the connection of two baffles in an embodiment of the present utility model.

[0016] Figure 6 yes Figure 5 Enlarged view of point A. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the following further describes the fixing structure of the inverter of the present invention in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] In the description of the present invention, unless otherwise specified, "plurality" means two or more; the terms "center", "longitudinal", "lateral", "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0020] See Figures 1 to 6 The fixed structure of the inverter of the embodiment of the present invention includes a chassis 1, a fixed plate 2 and a plurality of baffles 3. The fixed plate 2 is fixed in the chassis 1. The fixed plate 2 is provided with a rectifier wall 21. The rectifier wall 21 is provided with rectifiers 4 arranged upper and lower. The plurality of baffles 3 are connected and fixed in sequence along the upper to lower end surfaces in a stepped shape. The baffle 3 covers the fixed plate 2. The connection between the two baffles 3 forms a table 31. The table 31 is provided with a through hole 32. The plate surface of the baffle 3 near the bottom is provided with a three-phase power input terminal 5. The three-phase power input terminal 5 is connected to the rectifier 4 through the through hole 32.

[0021] In the above embodiment, the inverter's mounting structure consists of a chassis 1, a mounting plate 2, and a series of baffles 3. The chassis 1 serves as the main frame, providing a foundation for installation and mounting. The mounting plate 2 is threadedly mounted within the chassis 1, serving as a platform for supporting and mounting other components. A rectifier wall 21 is positioned above the mounting plate 2 to accommodate and support the rectifiers 4. The rectifiers 4 are arranged vertically along the rectifier wall 21, creating a compact and orderly layout.

[0022] To protect and isolate the fixed plate 2 and the rectifier 4 thereon, multiple baffles 3 are designed. These baffles 3 are connected and fixed to the fixed plate 2 in descending order, forming a stepped structure. These baffles 3 not only cover the fixed plate 2 but also form multiple mesas 31 at their joints. Each mesas 31 is provided with a through-hole 32.

[0023] On the surface of the baffle 3 near the bottom, three-phase power input terminals 5 are set. These input terminals are electrically connected to the rectifier 4 on the rectifying wall 21 through the through holes 32 on the table 31.

[0024] This structural design allows for the flexible addition or reduction of baffles 3 based on actual needs. When a rectifier 4 is required, only additional baffles 3 need to be added, and corresponding through-holes 32 and electrical connections provided on the newly added baffles 3. This improves the flexibility and scalability of the inverter structure.

[0025] See Figures 1 to 6 In another embodiment, a connecting plate 6 is further provided at the connection between the two baffles 3 , and the connecting plate 6 is provided with a through hole 61 adapted to the through hole 32 , and the two ends of the connecting plate 6 are respectively threadedly connected to the two baffles 3 .

[0026] In the above embodiment, in order to further enhance the stability and reliability of the connection between the two baffles 3, see Figures 1 to 6In another embodiment, a connecting plate 6 is additionally arranged at the joint between two baffles 3. The connecting plate 6 is designed to have a through hole 61 matching the through hole 32 on the table 31, so that when the three-phase power input terminal 5 is connected with the rectifier 4, it can pass through the through hole 61 and the through hole 32. The two ends of the connecting plate 6 are respectively fixed with the two adjacent baffles 3 by threaded connection, which not only ensures the firm connection between the connecting plate 6 and the baffle 3, but also makes the whole structure more stable and reliable in electrical connection.

[0027] Please refer to Figures 1 to 6 In another embodiment, the connecting piece 62 of the three-phase power input terminal 5 and the rectifier 4 is an iron sheet with a thickness of 0.5mm-0.7mm.

[0028] In the above embodiment, the thickness of the iron sheet is moderate, which can not only ensure good electrical conductivity, but also provide sufficient mechanical strength to resist vibration and impact, ensure the stability and durability of electrical connection, and improve the operation reliability of the whole frequency converter.

[0029] Please refer to Figures 1 to 6 In another embodiment, the plate surface of the baffle 3 is provided with a positioning column 7, and the positioning column 7 is fixedly connected with the connecting piece 62.

[0030] In the above embodiment, the positioning column 7 is threadedly connected with the connecting piece 62, which can guide the installation position of the connecting piece 62 and also serve as a limiting function, ensuring the accurate electrical connection between the three-phase power input terminal 5 and the rectifier 4, improving the assembly efficiency and connection reliability, and enhancing the stability and compactness of the overall structure.

[0031] Please refer to Figures 1 to 6 In another embodiment, the side plates on both sides of the cabinet 1 are arranged with fixed horizontal columns 8 from top to bottom, and the fixed plate 2 and the baffles 3 are fixedly arranged on the fixed horizontal columns 8.

[0032] In the above embodiment, the fixed horizontal columns 8 are arranged on the side plates of the cabinet 1 from top to bottom. These fixed horizontal columns 8 serve as supporting structures and provide reliable fixing points for the installation of the fixed plate 2 and the baffles 3. The two sides of the fixed plate 2 are fixedly installed on the fixed horizontal columns 8 on the side plates of the cabinet 1 by means of bolt connection or buckle fixing. Similarly, the two sides of each baffle 3 are also fixed on the corresponding fixed horizontal columns 8 by means of bolt connection or buckle fixing. Such design enables the fixed plate 2 and the baffles 3 to be stably supported inside the cabinet 1, ensuring the stability and reliability of the whole structure.

[0033] Please refer to Figures 1 to 6 In another embodiment, a water-cooled plate 9 is additionally arranged on the back side of the fixed plate 2.

[0034] In the above embodiment, the bonding method includes but is not limited to threaded connection or glue connection, which can effectively utilize the water-cooling plate 9 to dissipate heat from the fixed plate 2 and the rectifier 4 and other heating components thereon, thereby improving the heat dissipation efficiency, reducing the operating temperature of the components, and extending the service life. At the same time, it maintains the internal temperature of the inverter stable, thereby improving the overall performance and operational reliability.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A fixed structure of a frequency converter, characterized in that: It includes a chassis, a fixed plate and multiple baffles. The fixed plate is fixed in the chassis. The fixed plate is provided with a rectifier wall. The rectifier wall is provided with rectifiers arranged upper and lower. Multiple baffles are connected and fixed in sequence along the upper to lower end surfaces in a stepped shape. The baffle covers the fixed plate. The connection between the two baffles forms a table. The table is provided with a through hole. The plate surface near the baffle below is provided with a three-phase power input terminal. The three-phase power input terminal is connected to the rectifier through a through hole.

2. The fixing structure of the frequency converter according to claim 1, wherein: A connecting plate is further provided at the connection between the two baffles. The connecting plate is provided with a through hole adapted to the through hole. Both ends of the connecting plate are respectively threadedly connected to the two baffles.

3. The fixing structure of the frequency converter according to claim 1, wherein: The connecting piece between the three-phase power input terminal and the rectifier is an iron sheet with a thickness of 0.5mm to 0.7mm.

4. The fixing structure of the frequency converter according to claim 3, wherein: The plate surface of the baffle is provided with a positioning column, and the positioning column is fixedly connected to the connecting piece.

5. The fixing structure of the frequency converter according to claim 1, wherein: The side panels on both sides of the chassis are arranged from top to bottom with fixed horizontal columns, and the fixed plate and both sides of the baffle are fixedly arranged on the fixed horizontal columns.

6. The fixing structure of the frequency converter according to claim 1, wherein: A water cooling plate is also provided on one side of the rear of the fixing plate.

Images