Filtering device

Abstract

The utility model discloses a filtering device. The filtering device comprises a magnetic ring assembly; the copper bar assembly is arranged in the magnetic ring assembly in a penetrating manner; the protection cover is arranged on the magnetic ring assembly in a covering manner; the mounting plate is arranged at the bottom of the magnetic ring assembly and is fixedly connected with the protective cover; and the elastic pieces are arranged between the magnetic ring assembly and the protective cover and between the magnetic ring assembly and the mounting plate, and are arranged to be in interference fit with the magnetic ring assembly, the protective cover and the mounting plate. The filtering device can ensure that the copper bar assembly with a larger sectional area passes through the magnetic ring assembly, the EMC performance of the filtering device is improved, and the filtering device is easy to assemble. Due to the fact that the magnetic ring assembly is manufactured through the sintering technology, the boundary dimension tolerance of the magnetic ring assembly is large, gaps with uncertain sizes exist between the magnetic ring assembly and the protection cover and between the magnetic ring assembly and the installation plate, the filtering device can compensate for changes of the gaps with the uncertain sizes through elastic deformation of the elastic piece, and the purpose of guaranteeing reliable fixing of the magnetic ring assembly is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of uninterruptible power supply, and in particular relates to a filtering device. Background Art

[0002] Based on in-depth research on uninterruptible power supply (UPS) technology, we have noticed that with the significant increase in the power of UPS units and the continuous increase in power density, the functions that cabinets need to carry are increasing. This trend has put forward higher requirements for electromagnetic compatibility (EMC) design. In particular, in high current environments, it is particularly important to ensure the EMC performance of cabinets. In order to meet this challenge, we use large magnetic rings for effective electromagnetic interference filtering.

[0003] However, due to the limited space inside the cabinet and the higher requirements for EMC performance, the traditional cable magnetic ring filtering solution has been unable to meet the current technical requirements. In addition, because the magnetic ring of the filter device in the prior art adopts the sintering process, its external dimension tolerance is large, which makes the filter device difficult to assemble, and the magnetic ring is easily damaged if it is not assembled tightly. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a filtering device, which not only improves the EMC performance of the filtering device, but also improves the stability of the filtering device, thereby providing a strong guarantee for the stable operation of the system.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0006] A filtering device, comprising:

[0007] Magnetic ring assembly;

[0008] A copper busbar assembly is inserted into the magnetic ring assembly;

[0009] A protective cover, which is arranged on the magnetic ring assembly;

[0010] A mounting plate, arranged at the bottom of the magnetic ring assembly and fixedly connected to the protective cover;

[0011] The elastic member is arranged between the magnetic ring assembly and the protective cover and between the magnetic ring assembly and the mounting plate, and is arranged to be interference-fitted with the magnetic ring assembly, the protective cover and the mounting plate.

[0012] Furthermore, the elastic member is a rubber pad coated on the outer surface of the magnetic ring assembly.

[0013] Furthermore, the protective cover includes a top plate and two side plates fixedly connected together, and the two side plates are respectively arranged on both sides of the top plate and are arranged perpendicular to the top plate.

[0014] Furthermore, the elastic member includes a first elastic pad, a second elastic pad, a third elastic pad and a fourth elastic pad, the second elastic pad corresponds to the top plate, the first elastic pad and the third elastic pad correspond to the two side plates respectively; the fourth elastic pad is arranged between the magnetic ring assembly and the mounting plate.

[0015] Furthermore, the protective cover also includes a plurality of shielding plates, which are arranged perpendicularly to the top plate and the side plates, extending from the top plate and the side plates toward the first elastic pad, the second elastic pad and the third elastic pad, and covering the sides of the first elastic pad, the second elastic pad and the third elastic pad.

[0016] Furthermore, the protective cover also includes a fixing plate, which is fixedly connected to the bottom of the side plate and connected to the mounting plate.

[0017] Furthermore, the magnetic ring assembly is in the shape of a U or a ring.

[0018] Furthermore, the copper bar assembly includes a first copper bar, a second copper bar and a third copper bar; the second copper bar is horizontally arranged in the magnetic ring assembly, and the first copper bar and the third copper bar are vertically arranged on both sides of the second copper bar respectively.

[0019] Furthermore, the copper bar assembly includes a first copper bar, a second copper bar, a third copper bar and a fourth copper bar; the first copper bar, the second copper bar, the third copper bar and the fourth copper bar are all vertically arranged in the magnetic ring assembly.

[0020] Furthermore, it also includes a connecting piece, which is fixedly connected to the copper busbar assembly.

[0021] Beneficial effects of the utility model:

[0022] The filter device can ensure that the copper bar assembly with a larger cross-sectional area passes through the magnetic ring assembly, thereby improving the EMC performance of the filter device and being easy to assemble. Since the magnetic ring assembly is made by a sintering process, the tolerance of its external dimensions is relatively large, and there is a gap of varying sizes between the magnetic ring assembly and the protective cover and the mounting plate. The filter device can compensate for the gap change of varying sizes through the elastic deformation of the elastic member, thereby achieving the purpose of ensuring that the magnetic ring assembly is reliably fixed. The filter device can also avoid the situation where the magnetic ring assembly directly contacts the protective cover and the mounting plate during transportation, resulting in collision and fracture, by adding an elastic member. In addition, collisions between the magnetic rings inside the magnetic ring assembly, resulting in buzzing sounds or collision and fracture, can also be avoided by adding an elastic member. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 An exploded view of a filter device of the utility model in one embodiment;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the filter device of the utility model in one embodiment;

[0025] Figure 3 It is an exploded view of the filter device of the utility model in another embodiment.

[0026] Reference numerals include:

[0027] 100—magnetic ring assembly 200—protective cover 210—top plate

[0028] 220—side plate 230—fixed plate 240—shielding plate

[0029] 300—elastic member 310—first elastic pad 320—second elastic pad

[0030] 330—third elastic pad 340—fourth elastic pad 400—copper busbar assembly

[0031] 410 - first copper bar 420 - second copper bar 430 - third copper bar

[0032] 440—Fourth copper bar 500—Mounting plate 600—Connector DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below 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 used to limit the present invention.

[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0035] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the 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 operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] Please refer to Figure 1 and Figure 2 , which is a preferred embodiment of the utility model, the filtering device includes: a magnetic ring component 100; a copper busbar component 400, which is inserted into the magnetic ring component 100; a protective cover 200, which is covered on the magnetic ring component 100; a mounting plate 500, which is arranged at the bottom of the magnetic ring component 100 and is fixedly connected to the protective cover 200; an elastic member 300, which is arranged between the magnetic ring component 100 and the protective cover 200 and between the magnetic ring component 100 and the mounting plate 500, and is arranged to be interference fit with the magnetic ring component 100, the protective cover 200 and the mounting plate 500.

[0038] The filter device can ensure that the copper bar assembly 400 with a larger cross-sectional area passes through the magnetic ring assembly 100, improves the EMC performance of the filter device, and is easy to assemble. Because the magnetic ring assembly 100 is made by a sintering process, its external dimension tolerance is large, and there is a gap of varying size between the magnetic ring assembly 100 and the protective cover 200 and the mounting plate 500. The filter device can compensate for the gap change of varying size through the elastic deformation of the elastic member 300, so as to achieve the purpose of ensuring the reliable fixation of the magnetic ring assembly 100. The filter device can also avoid the situation that the magnetic ring assembly 100 directly contacts the protective cover 200 and the mounting plate 500 during transportation, resulting in collision and fracture by adding the elastic member 300. In addition, by adding the elastic member 300, it can also avoid the situation that the collision between the magnetic rings inside the magnetic ring assembly 100, the buzzing sound or the collision and fracture can be avoided.

[0039] like Figure 1 and Figure 3 As shown, the magnetic ring assembly 100 includes a plurality of magnetic rings arranged in parallel. The magnetic ring assembly 100 is annular in shape as a whole. Figure 1 As shown, in one embodiment of the present application, the magnetic ring assembly 100 is in a "hui" shape; as Figure 3 shown, in another embodiment of the present application, the magnetic ring assembly 100 is in a circular ring shape.

[0040] As Figure 1-Figure 3 shown, a copper bar assembly 400 is passed through the magnetic ring assembly 100. As Figure 1 and Figure 2 shown, in one embodiment of the present application, the copper bar assembly 400 includes a first copper bar 410, a second copper bar 420, and a third copper bar 430. Among them, the second copper bar 420 is horizontally arranged inside the magnetic ring assembly 100, and the first copper bar 410 and the third copper bar 430 are respectively vertically arranged on both sides of the second copper bar 420. As Figure 3 shown, in another embodiment of the present application, the copper bar assembly 400 includes a first copper bar 410, a second copper bar 420, a third copper bar 430, and a fourth copper bar 440. Among them, the first copper bar 410, the second copper bar 420, the third copper bar 430, and the fourth copper bar 440 are all vertically arranged inside the magnetic ring assembly 100. With such a setting, the space of the magnetic ring assembly 100 can be fully utilized. Compared with cables, this filtering device can ensure that a copper bar assembly 400 with a larger cross-sectional area passes through the magnetic ring assembly 100, improving the EMC performance of this filtering device and being easy to assemble.

[0041] This filtering device further includes a plurality of connecting pieces 600, and the connecting pieces 600 are fixedly connected to the copper bar assembly 400 together. For example, in one embodiment of the present application, as Figure 1 and Figure 2 shown, a plurality of connecting pieces 600 are respectively fixedly connected to both ends of the first copper bar 410, the second copper bar 420, and the third copper bar 430. In one embodiment of the present application, as Figure 3 shown, a plurality of connecting pieces 600 are respectively fixedly connected to both ends of the first copper bar 410, the second copper bar 420, the third copper bar 430, and the fourth copper bar 440.

[0042] As Figure 1-Figure 3 shown, a mounting plate 500 is provided at the bottom of the magnetic ring assembly 100, and a protective cover 200 is covered on the top. After the protective cover 200 is covered on the magnetic ring assembly 100, the bottom is fixedly connected to the mounting plate 500, and the protective cover 200, the magnetic ring assembly 100, and the mounting plate 500 form an integral body.

[0043] Specifically, as Figure 1As shown, the protective cover 200 includes a top plate 210 and two side plates 220 fixedly connected together. The two side plates 220 are respectively arranged on both sides of the top plate 210 and are perpendicular to the top plate 210, so that the protective cover 200 as a whole is roughly in a "concave" shape.

[0044] In one embodiment of the present application, Figure 1 and Figure 2 As shown, the protective cover 200 further includes a plurality of shielding plates 240, which are arranged perpendicularly to the top plate 210 and the side plate 220, extending from the top plate 210 and the side plate 220 toward the elastic member 300, and covering the side of the elastic member 300. In another embodiment of the present application, the protective cover 200 further includes a fixing plate 230, which is fixedly connected to the bottom of the side plate 220 and connected to the mounting plate 500. Preferably, the top plate 210, the side plate 220, the fixing plate 230 and the shielding plates 240 are formed by bending a piece of sheet metal.

[0045] Since the magnetic ring assembly 100 is made by sintering process, its outer dimension tolerance is large, and there is a gap of uncertain size between the magnetic ring assembly 100 and the protective cover 200 and the mounting plate 500. The filter device compensates for the gap change of uncertain size by adding an elastic member 300 to ensure the reliable fixation of the magnetic ring assembly 100. The elastic member 300 is arranged between the magnetic ring assembly 100 and the protective cover 200 and between the magnetic ring assembly 100 and the mounting plate 500, and is arranged to have an interference fit with the magnetic ring assembly 100, the protective cover 200 and the mounting plate 500.

[0046] In one embodiment of the present application, the elastic member 300 is a rubber pad covering the outer surface of the magnetic ring assembly 100. Figure 1 and Figure 3 As shown, the elastic member 300 includes a first elastic pad 310, a second elastic pad 320, a third elastic pad 330 and a fourth elastic pad 340, wherein the second elastic pad 320 corresponds to the top plate 210, the first elastic pad 310 and the third elastic pad 330 correspond to the two side plates 220 respectively, and the fourth elastic pad 340 is arranged between the magnetic ring assembly 100 and the mounting plate 500. A plurality of shielding plates 240 extend from the top plate 210 and the side plates 220 toward the first elastic pad 310, the second elastic pad 320 and the third elastic pad 330, and cover the side surfaces of the first elastic pad 310, the second elastic pad 320 and the third elastic pad 330.

[0047] According to the concept of the present invention, many changes can be made in the specific implementation mode and the scope of application. As long as these changes do not deviate from the concept of the present invention, they all belong to the protection scope of the present invention.

Claims

1. A filtering device, characterized in that: include: Magnetic ring assembly (100); A copper busbar assembly (400) is inserted into the magnetic ring assembly (100); A protective cover (200) is arranged on the magnetic ring assembly (100); A mounting plate (500) is arranged at the bottom of the magnetic ring assembly (100) and is fixedly connected to the protective cover (200); The elastic member (300) is arranged between the magnetic ring assembly (100) and the protective cover (200) and between the magnetic ring assembly (100) and the mounting plate (500), and is arranged to be interference fit with the magnetic ring assembly (100), the protective cover (200) and the mounting plate (500).

2. The filtering device according to claim 1, characterized in that The elastic member (300) is a rubber pad covering the outer surface of the magnetic ring assembly (100).

3. The filtering device according to claim 1, characterized in that The protective cover (200) comprises a top plate (210) and two side plates (220) which are fixedly connected together, and the two side plates (220) are respectively arranged on both sides of the top plate (210) and are arranged perpendicular to the top plate (210).

4. The filtering device according to claim 3, characterized in that: The elastic member (300) comprises a first elastic pad (310), a second elastic pad (320), a third elastic pad (330) and a fourth elastic pad (340), wherein the second elastic pad (320) corresponds to the top plate (210), and the first elastic pad (310) and the third elastic pad (330) correspond to the two side plates (220) respectively; the fourth elastic pad (340) is arranged between the magnetic ring assembly (100) and the mounting plate (500).

5. The filtering device according to claim 4, characterized in that: The protective cover (200) further comprises a plurality of shielding plates (240), wherein the plurality of shielding plates (240) are arranged perpendicularly to the top plate (210) and the side plate (220), and extend from the top plate (210) and the side plate (220) toward the first elastic pad (310), the second elastic pad (320) and the third elastic pad (330), so as to cover the side surfaces of the first elastic pad (310), the second elastic pad (320) and the third elastic pad (330).

6. The filtering device according to claim 5, characterized in that: The protective cover (200) further comprises a fixing plate (230), wherein the fixing plate (230) is fixedly connected to the bottom of the side plate (220) and is connected to the mounting plate (500).

7. The filtering device according to any one of claims 1 to 6, characterized in that: The magnetic ring assembly (100) is in the shape of a Chinese character “U” or a circular ring.

8. The filtering device according to claim 7, characterized in that: The copper bar assembly (400) comprises a first copper bar (410), a second copper bar (420) and a third copper bar (430); the second copper bar (420) is horizontally arranged in the magnetic ring assembly (100), and the first copper bar (410) and the third copper bar (430) are respectively vertically arranged on both sides of the second copper bar (420).

9. The filtering device according to claim 8, characterized in that: The copper bar assembly (400) comprises a first copper bar (410), a second copper bar (420), a third copper bar (430) and a fourth copper bar (440); the first copper bar (410), the second copper bar (420), the third copper bar (430) and the fourth copper bar (440) are all vertically arranged in the magnetic ring assembly (100).

10. The filtering device according to claim 1, characterized in that: It also includes a connecting piece (600), wherein the connecting piece (600) is fixedly connected to the copper busbar assembly (400).

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