Cabinet structure of active power filter

Abstract

The utility model relates to an active power filter cabinet structure which comprises a cabinet body and a plurality of active filters, a plurality of connecting frames are arranged in the cabinet body, a plurality of mounting plates are arranged among the connecting frames, and a plurality of threaded holes and a plurality of clamping plates are arranged on the surfaces of the mounting plates in a penetrating mode. A plurality of through holes are formed in the surfaces of the clamping plates in a penetrating mode, the clamping plates and the mounting plate are connected through the fixing bolts, the active filter is arranged between the connecting frames and is close to the mounting plate, and the clamping effect on the active filter is achieved through cooperation of the clamping plates and the fixing bolts. Compared with the prior art, a traditional connection mode between the active filter and the mounting plate is improved, so that a worker can more simply and conveniently carry out connection limitation between the plurality of active filters and the mounting plate without using too many fixing bolts to carry out connection operation, and connection and installation between the active filter and the cabinet body are more facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of active filter cabinets, in particular to an active power filter cabinet structure. Background Art

[0002] Active power filter (APF) is a new type of power electronic device used to dynamically suppress harmonics and compensate reactive power. It can compensate for harmonics of varying magnitude and frequency as well as varying reactive power. The active filter is called active because, as the name suggests, the device needs to provide power (to compensate for the harmonics of the main circuit). Its application can overcome the shortcomings of traditional harmonic suppression and reactive power compensation methods such as LC filters, realize dynamic tracking compensation, and can compensate for both harmonics and reactive power.

[0003] In order to be used in different environments, the existing active filter needs to be installed inside the corresponding cabinet. During the installation process, multiple filter modules need to be installed between the cabinet first, and then the module wiring operation is performed. However, when assembling the modules and the cabinet, since the existing modules and the cabinet are always connected and fixed with multiple bolts, the staff needs to repeatedly perform multiple bolt knob operations during the module assembly process, which makes the connection between the multiple modules and the cabinet too cumbersome and inconvenient to use. Utility Model Content

[0004] Based on the above description, the utility model provides an active power filter cabinet structure to solve the problem that the connection between the module and the cabinet is too complicated and causes inconvenience.

[0005] The utility model solves the above-mentioned technical problem with the following technical solutions: an active power filter cabinet structure, comprising a cabinet and a plurality of active filters, wherein a plurality of connecting frames are arranged in the cabinet, a plurality of mounting plates are arranged between the plurality of connecting frames, a plurality of threaded holes are penetrated through the surface of the mounting plates, a plurality of clamping plates, a plurality of through openings are penetrated through the surface of the plurality of clamping plates, and the clamping plates are connected to the mounting plates by a plurality of fixing bolts.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the clamping plate includes an upper clamping plate and a lower clamping plate, and the upper clamping plate and the lower clamping plate are close to each other and connected by a hinge.

[0008] Furthermore, a rubber ring is provided on the surface of the clamping plate near the opening, and the surface of the fixing bolt is in close contact with the surface of the rubber ring.

[0009] Furthermore, a groove is provided on the surface of the lower clamping plate, a rubber pad is provided in the groove, and a convex block protruding into the groove is provided on the surface of the upper clamping plate.

[0010] Furthermore, the surfaces of the upper clamping plate and the lower clamping plate are both provided with limit frames, and the limit frames are designed as "U"-shaped structures and are respectively sleeved on the outer sides of the upper clamping plate and the lower clamping plate.

[0011] Furthermore, the surfaces of the upper clamping plate and the lower clamping plate are both provided with convex plates close to each other.

[0012] Furthermore, the surface of the limiting frame is set to be a smooth surface.

[0013] Furthermore, the surface of the convex plate is engraved with anti-slip patterns.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0015] 1. By placing the active filter between several connecting frames, making it close to the mounting plate, and using the cooperation of the clamping plate and the fixing bolts to achieve the clamping effect of the active filter, the traditional connection method between the active filter and the mounting plate is improved, making it easier and more convenient for the staff to connect several active filters with the mounting plate, without using too many fixing bolts for connection operations, which is more conducive to the connection and installation between the active filter and the cabinet.

[0016] 2. By dividing the splint into an upper splint and a lower splint, and connecting and installing the upper splint and the lower splint with a hinge, the splint can be folded and stored when not in use, thereby effectively reducing the overall space occupied by the splint, making the overall space occupied by the splint smaller and more convenient for storage or carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the cabinet of the utility model;

[0019] Figure 3 It is a schematic diagram of a partial explosion structure of the plywood of the utility model;

[0020] Figure 4 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0021] Figure 5 For this utility model Figure 1 Enlarged structural diagram at B in the middle.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Cabinet; 11. Connecting frame; 2. Active filter; 3. Mounting plate; 31. Threaded hole; 4. Clamp; 40. Through hole; 41. Upper clamp; 411. Bump; 42. Lower clamp; 421. Groove; 5. Fixing bolt; 6. Hinge; 7. Rubber ring; 8. Convex plate; 9. Limiting frame; 10. Rubber pad. DETAILED DESCRIPTION

[0024] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0026] This embodiment provides an active power filter cabinet structure. When the cabinet structure is used, the installation operation of the filter is simpler and more convenient. Specifically, Figure 1-5 As shown, it includes a cabinet 1, a plurality of active filters 2 and two clamping plates 4. A plurality of connecting frames 11 are arranged in the cabinet 1. The plurality of active filters 2 are respectively arranged between the plurality of connecting frames 11. Two mounting plates 3 are vertically arranged between the plurality of connecting frames 11. Two threaded holes 31 are penetrated through the surface of the mounting plate 3. The plurality of active filters 2 are all located between the two mounting plates 3. Two through openings 40 are penetrated through the surfaces of the two clamping plates 4. The clamping plates 4 are connected to the mounting plates 3 by two fixing bolts 5. One side of the clamping plates 4 contacts the front sides of the plurality of active filters 2, so that the plurality of active filters 2 can be stably and effectively located between the mounting plates 3 and the clamping plates 4, and the two fixing bolts 5 between the two clamping plates 4 and the mounting plates 3 are respectively used to achieve fixed clamping. There is no need to use too many fixing bolts 5 to perform a separate connection operation between the active filter 2 and the mounting plate 3, and the fixing restriction of the active filter 2 is simpler and more convenient.

[0027] In order to facilitate the placement of the unconnected splint 4, Figure 1 and Figure 5As shown, in this embodiment, the splint 4 includes an upper splint 41 and a lower splint 42. The upper splint 41 and the lower splint 42 are close to each other and connected by a hinge 6, so that the upper splint 41 and the lower splint 42 included in the splint 4 can be folded and stored, which is more conducive to the placement and storage of the splint 4 and avoids the situation that the splint 4 occupies a large space when not in use.

[0028] In order to make the connection between the fixing bolt 5 and the mounting plate 3 more secure, Figure 3 As shown, in this embodiment, a rubber ring 7 is provided on the surface of the clamping plate 4 and near the position of the through opening 40, and the surface of the fixing bolt 5 is in close contact with the surface of the rubber ring 7, so that the friction between the fixing bolt 5 and the rubber ring 7 can be effectively utilized, so that the state of the fixing bolt 5 connected between the clamping plate 4 and the mounting plate 3 is more stable, and the fixing bolt 5 can be prevented from being easily loosened due to resonance that may exist during the operation of the filter.

[0029] In order to make the foldable splint 4 more stable after unfolding, Figure 3 As shown, a groove 421 is formed on the surface of the lower clamping plate 42 , and a rubber pad 10 is disposed in the groove 421 . A protrusion 411 protruding into the groove 421 is formed on the surface of the upper clamping plate 41 , and the protrusion 411 is in close contact with the surface of the rubber pad 10 .

[0030] In order to facilitate the staff to use the fixing bolts 5 to connect and fix the clamping plate 4 and the mounting plate 3, as shown in FIG. Figure 1-4 As shown, the surfaces of the upper clamping plate 41 and the lower clamping plate 42 are both provided with a limit frame 9, the limit frame 9 is designed as a "U"-shaped structure, and is respectively sleeved on the outer sides of the upper clamping plate 41 and the lower clamping plate 42, and the surface of the limit frame 9 is set to a smooth surface, so that the state of the clamping plate 4 after unfolding is more stable, avoiding the angle deviation between the through hole 40 opened in the clamping plate 4 and the threaded hole 31 to affect the installation.

[0031] like Figure 1 , Figure 3 and Figure 5 As shown, the surfaces of the upper clamping plate 41 and the lower clamping plate 42 are provided with convex plates 8 close to each other, and the surfaces of the convex plates 8 are engraved with anti-slip patterns, which are more conducive to the staff to limit the rotation angle of the upper clamping plate 41 and the lower clamping plate 42, and facilitate pushing the restricted upper clamping plate 41 and the lower clamping plate 42 into the limit frame 9.

[0032] During the use of the above-mentioned active power filter cabinet structure, if it is necessary to assemble multiple active filters 2, the multiple active filters 2 can be first placed between the multiple connecting frames 11 and close to the mounting plate 3, then the upper clamping plate 41 and the lower clamping plate 42 of the clamping plate 4 are unfolded, and the two convex plates 8 are grasped to apply pressure and push, and the clamping plate 4 is close to the multiple active filters 2 through the limit frame 9 until the back of the clamping plate 4 contacts the front of the multiple active filters 2, and finally the clamping plate 4 and the mounting plate 3 are connected and fixed by the fixing bolts 5 through the through opening 40 and the threaded hole 31, so that the clamping plate 4 is used to clamp and fix the multiple active filters 2, and the assembly operation between the active filter 2 and the cabinet 1 is simpler.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An active power filter cabinet structure, comprising a cabinet (1) and a plurality of active filters (2), wherein a plurality of connecting frames (11) are arranged in the cabinet (1), characterized in that: A plurality of mounting plates (3) are arranged between the plurality of connecting frames (11), and a plurality of threaded holes (31) are formed through the surface of the mounting plates (3); A plurality of clamping plates (4) are provided with a plurality of through openings (40) on the surfaces of the plurality of clamping plates (4), and the clamping plates (4) are connected to the mounting plate (3) via a plurality of fixing bolts (5).

2. An active power filter cabinet structure according to claim 1, characterized in that: The clamping plate (4) further comprises an upper clamping plate (41) and a lower clamping plate (42). The upper clamping plate (41) and the lower clamping plate (42) are close to each other and connected via a hinge (6).

3. The active power filter cabinet structure according to claim 1, characterized in that: A rubber ring (7) is provided on the surface of the clamping plate (4) at a position close to the opening (40), and the surface of the fixing bolt (5) is in close contact with the surface of the rubber ring (7).

4. The active power filter cabinet structure according to claim 2, characterized in that: A groove (421) is provided on the surface of the lower clamping plate (42), a rubber pad (10) is provided in the groove (421), and a protrusion (411) protruding into the groove (421) is provided on the surface of the upper clamping plate (41).

5. The active power filter cabinet structure according to claim 2, characterized in that: The surfaces of the upper clamping plate (41) and the lower clamping plate (42) are both provided with a limit frame (9), and the limit frame (9) is designed as a "U"-shaped structure and is respectively sleeved on the outer sides of the upper clamping plate (41) and the lower clamping plate (42).

6. The active power filter cabinet structure according to claim 2, characterized in that: The surfaces of the upper clamping plate (41) and the lower clamping plate (42) are both provided with convex plates (8) close to each other.

7. The active power filter cabinet structure according to claim 5, characterized in that: The surface of the limiting frame (9) is set to be a smooth surface.

8. The active power filter cabinet structure according to claim 6, characterized in that: The surface of the convex plate (8) is engraved with anti-slip patterns.

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