CMC common mode network filter convenient to replace

Abstract

The utility model provides a CMC common mode network filter convenient to replace, and relates to the technical field of filters, the CMC common mode network filter comprises a circuit board and a filter, two sides of the filter are both provided with a plurality of pins, the upper surface of the circuit board is provided with a plurality of conductive holes, each pin is respectively matched with the corresponding conductive hole in a penetrating manner, and the circuit board is connected with the circuit board. The two sides of the filter are respectively provided with a first connecting assembly. When a worker needs to replace the filter, the worker pulls the movable plate to enable the insertion rod to be separated from the insertion hole, and then the worker pulls the filter upwards to enable the right-angle frame to be separated from the position between the corresponding supporting frame and the movable plate and enable the pin to be separated from the conductive hole. And then a worker places a new right-angle frame of the filter between the supporting frame and the movable plate, then the worker resets the movable plate, the insertion rods are inserted into new insertion holes, new pins are inserted into conductive holes, the maintenance time is short, and the maintenance efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, and more specifically, to a CMC common-mode network filter that can be conveniently replaced. Background Technique

[0002] The CMC common-mode network filter, also known as a common-mode filter, is an electronic filter mainly used to filter out common-mode interference signals in a signal. The common-mode interference signals are usually generated through common sources such as power lines, ground wires, or other interconnected devices. If not filtered, they may affect the normal operation of electronic circuits. In the existing CMC common-mode network filters, the circuit board and the filter are fixed by welding. However, when the filter is damaged, the staff needs to spend a lot of time and effort to replace the damaged filter, which greatly reduces the maintenance efficiency and prolongs the time required for maintenance. Summary of the Utility Model

[0003] The main purpose of the utility model is to provide a CMC common-mode network filter that can be conveniently replaced, which can effectively solve the problem that in the CMC common-mode network filter in the background technique, the circuit board and the filter are fixed by welding, but when the filter is damaged, the staff needs to spend a lot of time and effort to replace the damaged filter, which greatly reduces the maintenance efficiency and prolongs the time required for maintenance.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A CMC common-mode network filter that can be conveniently replaced, including a circuit board and a filter. A plurality of pins are provided on both sides of the filter, and a plurality of conductive holes are opened on the upper surface of the circuit board. Each pin is respectively inserted and matched with a corresponding conductive hole;

[0006] First connection components are provided on both sides of the filter, and second connection components are provided on both sides of the upper surface of the circuit board. The filter and the circuit board are connected through the first connection components and the second connection components.

[0007] Preferably, the first connection component includes a right-angle frame, which is fixedly installed on the corresponding side of the upper surface of the filter, and two insertion holes are penetrated through one side of the inner wall of the right-angle frame.

[0008] Preferably, the second connection component includes a support frame, which is fixedly installed on the corresponding side of the upper surface of the circuit board. Support plates are fixedly installed on both sides of the support frame. A moving plate is movably arranged between the two support plates. Two insertion rods are fixedly installed on one side of the moving plate. Each insertion rod is respectively inserted and matched with a corresponding insertion hole.

[0009] Preferably, sliding grooves are formed in the opposite surfaces of adjacent support plates, sliders are slidably arranged in each sliding groove, and the opposite sides of adjacent sliders are fixedly connected to corresponding moving plates together.

[0010] Preferably, sliding rods are fixedly installed between both sides of the inner wall of each sliding groove, and each slider is slidably arranged on one side of the rod body of the corresponding sliding rod;

[0011] A spring is sleeved on one side of the rod body of each sliding rod.

[0012] Preferably, connecting frames are fixedly installed on the upper surfaces of each support plate, and bolts are threadedly arranged through the upper surfaces of both connecting frames;

[0013] Positioning holes are formed in both sides of the upper surfaces of both moving plates.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] (1) When a staff member needs to replace the filter, the staff member pulls the moving plate, so that the insertion rod disengages from the insertion hole. Then, the staff member pulls the filter upward, so that the right-angle frame disengages from between the corresponding support frame and the moving plate, and the pin disengages from the conductive hole. Then, the staff member places the right-angle frame of the new filter between the support frame and the moving plate. Then, the staff member resets the moving plate, so that the insertion rod is inserted into the new insertion hole, and the new pin is inserted into the conductive hole. The maintenance time is short, and the maintenance efficiency is greatly improved. Description of the Drawings

[0016] Figure 1 is a schematic diagram of the overall structure of a CMC common-mode network filter with convenient replacement according to the utility model;

[0017] Figure 2 is a schematic top view structure diagram of a CMC common-mode network filter with convenient replacement according to the utility model;

[0018] Figure 3 is a schematic cross-sectional structure diagram at A-A of a CMC common-mode network filter with convenient replacement according to the utility model Figure 2 in the utility model;

[0019] Figure 4 is a schematic enlarged structure diagram at A of a CMC common-mode network filter with convenient replacement according to the utility model Figure 3 in the utility model;

[0020] Figure 5 is a schematic enlarged structure diagram at B of a CMC common-mode network filter with convenient replacement according to the utility model Figure 3 in the utility model.

[0021] In the figure: 1. Circuit board; 2. Filter; 3. Pin; 4. Conductive hole; 5. First connection component; 501. Right-angle bracket; 502. Socket; 6. Second connection component; 601. Support frame; 602. Support plate; 603. Moving plate; 604. Insertion rod; 7. Chute; 8. Slide block; 9. Slide rod; 10. Spring; 11. Connection bracket; 12. Bolt; 13. Positioning hole. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] As Figures 1-5 shown, a CMC common-mode network filter with convenient replacement includes a circuit board 1 and a filter 2. A plurality of pins 3 are provided on both sides of the filter 2, and a plurality of conductive holes 4 are opened on the upper surface of the circuit board 1. Each pin 3 is respectively inserted and matched with the corresponding conductive hole 4;

[0024] First connection components 5 are provided on both sides of the filter 2, and second connection components 6 are provided on both sides of the upper surface of the circuit board 1. The filter 2 and the circuit board 1 are connected through the first connection components 5 and the second connection components 6.

[0025] The first connection component 5 includes a right-angle bracket 501. The right-angle bracket 501 is fixedly installed on the corresponding side of the upper surface of the filter 2, and two sockets 502 are penetrated and opened on one side of the inner wall of the right-angle bracket 501.

[0026] The second connection component 6 includes a support frame 601. The support frame 601 is fixedly installed on the corresponding side of the upper surface of the circuit board 1. Support plates 602 are fixedly installed on both sides of the support frame 601. A moving plate 603 is movably arranged between the two support plates 602. Two insertion rods 604 are fixedly installed on one side of the moving plate 603. Each insertion rod 604 is respectively inserted and matched with the corresponding socket 502.

[0027] When the staff needs to replace the filter 2, the staff can pull the moving plate 603 so that the insertion rod 604 disengages from the insertion hole 502. Subsequently, the staff pulls the filter 2 upward so that the right-angle bracket 501 disengages from between the corresponding support frame 601 and the moving plate 603, and the pin 3 disengages from the conductive hole 4. Then, the staff places the right-angle bracket 501 of the new filter 2 between the support frame 601 and the moving plate 603. Subsequently, the staff resets the moving plate 603 so that the insertion rod 604 is inserted into the new insertion hole 502, and the new pin 3 is inserted into the conductive hole 4. The maintenance time is short, which greatly improves the maintenance efficiency.

[0028] In another embodiment of the present invention, sliding grooves 7 are formed on the opposite surfaces of adjacent support plates 602. A slider 8 is slidably disposed in each sliding groove 7. The opposite sides of adjacent sliders 8 are fixedly connected to the corresponding moving plate 603 together.

[0029] A sliding rod 9 is fixedly installed between the two sides of the inner wall of each sliding groove 7. Each slider 8 is slidably disposed on one side of the rod body of the corresponding sliding rod 9;

[0030] A spring 10 is sleeved on one side of the rod body of each sliding rod 9.

[0031] After the staff pulls the moving plate 603, when the new right-angle bracket 501 is inserted, the staff releases the moving plate 603. Subsequently, under the elastic force generated by the reset of the spring 10, the moving plate 603 is reset. And under the pushing action of the spring 10, the insertion rod 604 is tightly inserted inside the insertion hole 502 and is not easily moved by an external force, enhancing the stability.

[0032] In another embodiment of the present invention, a connecting frame 11 is fixedly installed on the upper surface of each support plate 602. Bolts 12 are threadedly disposed through the upper surfaces of the two connecting frames 11;

[0033] Positioning holes 13 are formed on both sides of the upper surface of the two moving plates 603.

[0034] After the positioning hole 13 on the upper surface of the moving plate 603 moves below the bolt 12, the staff screws the bolt 12 so that one end of it is inserted into the positioning hole 13, enabling one staff member to complete the replacement of the filter 2.

[0035] The working principle of the CMC common-mode network filter with convenient replacement:

[0036] In use, when the staff needs to replace the filter 2, the staff can pull the moving plate 603 to disengage the insertion rod 604 from the insertion hole 502. Then, the staff pulls the filter 2 upward to disengage the right-angle bracket 501 from between the corresponding support frame 601 and the moving plate 603, and the pin 3 from the conductive hole 4. Subsequently, the staff places the right-angle bracket 501 of the new filter 2 between the support frame 601 and the moving plate 603. Then, the staff resets the moving plate 603 to insert the insertion rod 604 into the new insertion hole 502 and the new pin 3 into the conductive hole 4. The repair time is short, greatly improving the repair efficiency.

[0037] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation modes of the present invention. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is impossible to enumerate all the implementation modes here. Any obvious changes or variations derived from the technical solutions of the present invention still fall within the protection scope of the present invention.

Claims

1. A CMC common-mode network filter with convenient replacement, comprising a circuit board (1) and a filter (2), characterized in that: A number of pins (3) are provided on both sides of the filter (2), and a number of conductive holes (4) are formed on the upper surface of the circuit board (1). Each pin (3) is respectively inserted and matched with a corresponding conductive hole (4). First connection components (5) are provided on both sides of the filter (2), and second connection components (6) are provided on both sides of the upper surface of the circuit board (1). The filter (2) and the circuit board (1) are connected by the first connection components (5) and the second connection components (6).

2. The convenient replacement CMC common mode network filter according to claim 1, characterized in that: The first connection component (5) includes a right-angle bracket (501), and the right-angle bracket (501) is fixedly installed on the corresponding side of the upper surface of the filter (2). Two insertion holes (502) are formed through one side of the inner wall of the right-angle bracket (501).

3. The convenient replacement CMC common mode network filter according to claim 2, characterized in that: The second connection component (6) includes a support frame (601), and the support frame (601) is fixedly installed on the corresponding side of the upper surface of the circuit board (1). Support plates (602) are fixedly installed on both sides of the support frame (601). A moving plate (603) is movably arranged between the two support plates (602). Two insertion rods (604) are fixedly installed on one side of the moving plate (603). Each insertion rod (604) is respectively inserted and matched with a corresponding insertion hole (502).

4. The convenient replacement CMC common mode network filter according to claim 3, characterized in that: Chute grooves (7) are formed on the opposite side surfaces of adjacent support plates (602). A slider (8) is slidably arranged in each chute groove (7). The opposite sides of adjacent sliders (8) are fixedly connected to the corresponding moving plate (603) together.

5. The CMC common mode network filter that can be conveniently replaced according to claim 4, wherein: A slide bar (9) is fixedly installed between both sides of the inner wall of each chute groove (7). Each slider (8) is respectively slidably arranged on one side of the rod body of the corresponding slide bar (9). A spring (10) is sleeved on one side of the rod body of each slide bar (9).

6. The convenient replacement CMC common mode network filter according to claim 3, wherein: A connection frame (11) is fixedly installed on the upper surface of each support plate (602). Bolts (12) are threadedly arranged through the upper surfaces of the two connection frames (11). Positioning holes (13) are formed on both sides of the upper surface of the two moving plates (603).

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