Anti-interference power supply filter

Abstract

The utility model discloses an anti-interference power supply filter, which belongs to the technical field of filters, and comprises a power supply filter body, a groove is arranged above the power supply filter body, a limiting structure is connected onto the groove, a fixing plate is rotatably connected outside the limiting structure, one side of the fixing plate is connected with an arc-shaped plate, and the arc-shaped plate is connected with the power supply filter body. A clamping structure is arranged in the fixing plate, the clamping structure is connected with the arc-shaped plate, the front face of the power supply filter body is fixedly connected with an insertion opening, the limiting structure comprises a stand column and a ferrule, and the lower portion of the ferrule is fixedly connected with a clamping column. According to the utility model, the fixed plate, the arc-shaped plate and the limiting structure are arranged, so that the arc-shaped plate can perform protection treatment on the position of the plugging port, the position of the arc-shaped plate can be adjusted in the use process, the phenomenon of loss caused by adopting a plug for protection is avoided, the unnecessary processing cost is reduced, and the production efficiency is improved. And the flexibility of the power supply filter is ensured.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to an anti-interference power supply filter. Background Technology

[0002] A power filter is a filtering circuit composed of capacitors, inductors, and resistors. Its main function is to effectively filter out specific frequencies or frequencies other than those frequencies in the power line, thereby obtaining a power signal of a specific frequency or eliminating a power signal of a specific frequency. Power filters are widely used in various electronic devices to suppress electromagnetic interference on power lines and improve the stability and reliability of the equipment.

[0003] Existing technologies disclose several utility model patents in the field of filter technology. Among them, utility model patent CN218103793U discloses an anti-interference power filter, including a filter body. A splicing frame is movably connected to the bottom of the filter body, and a splicing base is movably connected to the bottom of the splicing frame. An adjustment groove is formed inside the splicing frame, and an installation groove is formed inside the splicing base. Fixed threaded rods are threadedly connected to the interior of the adjustment groove and the installation groove, respectively. A side seat is mounted on the side of the filter body, and a connecting wire is fixedly connected to the side of the side seat. An internal groove is formed at the bottom of the splicing base, and the fixed threaded rod is movably connected to the internal groove. This utility model, through the coordinated use of the splicing frame, splicing base, adjustment groove, and fixed threaded rod, avoids the inability to adjust the size as needed during use, thus preventing installation difficulties caused by unsuitable sizes.

[0004] However, the above method still has the following drawbacks in actual use: most of the power filter sockets are protected by plugs, and the plugs are prone to being lost during use, which increases unnecessary processing costs and reduces the flexibility of the power filter. Utility Model Content

[0005] The purpose of this invention is to provide an anti-interference power supply filter to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-interference power filter, comprising a power filter body, a groove formed on the upper part of the power filter body, a limiting structure connected to the groove, a fixing plate rotatably connected to the limiting structure, an arc-shaped plate connected to one side of the fixing plate, a snap-fit ​​structure provided inside the fixing plate, the snap-fit ​​structure connected to the arc-shaped plate, an insertion interface fixedly connected to the front of the power filter body, the limiting structure comprising a column and a collar, a locking post fixedly connected below the collar, a fixing disc fixedly connected to the top of the column, and a spring sleeved on the column.

[0007] As a further preferred embodiment of this technical solution, a mounting hole is provided at the bottom of the power filter body, and the column is fixedly connected to the top of the groove.

[0008] As a further preferred embodiment of this technical solution, the collar is slidably connected to the outer surface of the column, and the locking post is locked inside the fixing plate.

[0009] As a further preferred embodiment of this technical solution, the fixing plate is rotatably connected to the outside of the column, and the collar is connected to the fixing plate by a spring.

[0010] As a further preferred embodiment of this technical solution, the snap-fit ​​structure includes an L-shaped plate and a mounting plate, wherein the L-shaped plate is slidably connected within the fixed plate, and the mounting plate is fixedly connected below the arc-shaped plate.

[0011] As a further preferred embodiment of this technical solution, the fixing plate is engaged with the arc-shaped plate, and the mounting plate overlaps with the L-shaped plate.

[0012] As a further preferred embodiment of this technical solution, the L-shaped plate is provided with bolts, and the L-shaped plate is connected to the mounting plate by the bolts.

[0013] This utility model provides an anti-interference power supply filter, which has the following beneficial effects:

[0014] (1) By setting a fixed plate, an arc plate and a limiting structure, the present invention applies a pulling force to the collar. When the collar slides on the surface of the column, it will cause the spring to deform. After the fixed plate rotates around the column, the arc plate will fit the position of the plug interface. After the collar is released, it will be reset by the spring. The reset pin will engage with the groove, so that the arc plate can protect the position of the plug interface. In addition, the position of the arc plate can be adjusted during use to avoid loss due to the use of plug protection, thereby reducing unnecessary processing costs and ensuring the flexibility of the power filter.

[0015] (2) By setting a snap-fit ​​structure, the arc plate fits against the side of the power filter body, and the fixing plate snaps against the arc plate. Then the L-shaped plate is inserted into the fixing plate, and the L-shaped plate slides inside the arc plate. When the L-shaped plate fits against the mounting plate, the L-shaped plate is connected to the mounting plate by bolts, so that the arc plate and the fixing plate can be quickly assembled, and the arc plate can be easily replaced or repaired later. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the power filter body of this utility model;

[0018] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 4 This is a three-dimensional structural diagram of the snap-fit ​​structure of this utility model.

[0020] In the diagram: 1. Power filter body; 2. Plug interface; 3. Groove; 4. Fixing plate; 5. Arc plate; 6. Limiting structure; 601. Column; 602. Fixing plate; 603. Ring; 604. Clip; 605. Spring; 7. Snap-fit ​​structure; 701. L-shaped plate; 702. Mounting plate; 703. Bolt; 8. Mounting hole. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figure 1 and Figure 4 As shown, in this embodiment, an anti-interference power filter includes a power filter body 1. A groove 3 is provided on the upper part of the power filter body 1. A limiting structure 6 is connected to the groove 3. A fixing plate 4 is rotatably connected to the limiting structure 6. An arc plate 5 is connected to one side of the fixing plate 4. A snap-fit ​​structure 7 is provided inside the fixing plate 4 and is connected to the arc plate 5. An insertion interface 2 is fixedly connected to the front of the power filter body 1. The limiting structure 6 includes a column 601 and a collar 603. A locking post 604 is fixedly connected to the lower part of the collar 603. A fixing plate 602 is fixedly connected to the top of the column 601. A spring 605 is sleeved on the column 601.

[0023] like Figure 1 and Figure 3As shown, a mounting hole 8 is provided at the bottom of the power filter body 1, the column 601 is fixedly connected to the top of the groove 3, the collar 603 is slidably connected to the outer surface of the column 601, the locking post 604 is locked in the fixed plate 4, the fixed plate 4 is rotatably connected to the outside of the column 601, and the collar 603 is connected to the fixed plate 602 through the spring 605.

[0024] By setting spring 605, when it is necessary to protect the plug interface 2 of the power filter, by applying tension to the collar 603, the collar 603 will cause the spring 605 to deform when sliding on the surface of the column 601, so that the spring 605 provides a certain support for the movement of the collar 603. When the collar 603 loses resistance, it will be reset by the spring 605, so as to avoid the collar 603 from bumping during movement.

[0025] like Figure 4 As shown, the snap-fit ​​structure 7 includes an L-shaped plate 701 and a mounting plate 702. The L-shaped plate 701 is slidably connected inside the fixed plate 4, and the mounting plate 702 is fixedly connected below the arc-shaped plate 5. The fixed plate 4 and the arc-shaped plate 5 are snap-fitted together, and the mounting plate 702 overlaps with the L-shaped plate 701. The L-shaped plate 701 is provided with bolts 703, and the L-shaped plate 701 is connected to the mounting plate 702 through the bolts 703.

[0026] By setting the fixing plate 4, the arc plate 5 is attached to the side of the power filter body 1, and the fixing plate 4 will be snapped into the arc plate 5. Then, the L-shaped plate 701 is inserted into the fixing plate 4, so that the fixing plate 4 plays a certain positioning role in fixing the arc plate 5 and preventing the arc plate 5 from shifting its position when it is fixed.

[0027] This utility model provides an anti-interference power supply filter, the specific working principle of which is as follows:

[0028] When the power filter is in operation, the arc-shaped plate 5 is attached to the side of the power filter body 1, and the fixing plate 4 is engaged with the arc-shaped plate 5. Then, the L-shaped plate 701 is inserted into the fixing plate 4, and the L-shaped plate 701 slides within the arc-shaped plate 5. When the L-shaped plate 701 is in contact with the mounting plate 702, the L-shaped plate 701 is connected to the mounting plate 702 by bolts 703. When it is necessary to protect the plug interface 2 of the power filter, a tension is applied to the collar 603. When the collar 603 slides on the surface of the column 601, it will cause the spring 605 to deform, causing the fixing plate 4 to rotate around the column 601. The arc-shaped plate 5 will then be in contact with the plug interface 2. After the collar 603 is released, it will be reset by the spring 605. The reset locking post 604 will then engage with the groove 3.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-interference power supply filter, comprising a power supply filter body (1), characterized in that: The power filter body (1) has a groove (3) on its upper part. A limiting structure (6) is connected to the groove (3). A fixing plate (4) is rotatably connected to the limiting structure (6). An arc plate (5) is connected to one side of the fixing plate (4). A snap-fit ​​structure (7) is provided inside the fixing plate (4). The snap-fit ​​structure (7) is connected to the arc plate (5). An insertion interface (2) is fixedly connected to the front of the power filter body (1). The limiting structure (6) includes a column (601) and a collar (603). A locking post (604) is fixedly connected to the lower part of the collar (603). A fixing plate (602) is fixedly connected to the top of the column (601). A spring (605) is fitted over the column (601).

2. The anti-interference power supply filter according to claim 1, characterized in that: The power filter body (1) has an installation hole (8) at its bottom, and the column (601) is fixedly connected to the top of the groove (3).

3. The anti-interference power supply filter according to claim 1, characterized in that: The collar (603) is slidably connected to the outer surface of the column (601), and the locking post (604) is locked inside the fixing plate (4).

4. The anti-interference power supply filter according to claim 3, characterized in that: The fixing plate (4) is rotatably connected to the outside of the column (601), and the collar (603) is connected to the fixing plate (602) through the spring (605).

5. The anti-interference power supply filter according to claim 1, characterized in that: The snap-fit ​​structure (7) includes an L-shaped plate (701) and a mounting plate (702). The L-shaped plate (701) is slidably connected inside the fixed plate (4), and the mounting plate (702) is fixedly connected below the arc-shaped plate (5).

6. The anti-interference power supply filter according to claim 5, characterized in that: The fixing plate (4) is snapped into the arc plate (5), and the mounting plate (702) overlaps with the L-shaped plate (701).

7. An anti-interference power supply filter according to claim 6, characterized in that: The L-shaped plate (701) is provided with bolts (703), and the L-shaped plate (701) is connected to the mounting plate (702) by bolts (703).

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