An industrial control filter

Abstract

This utility model discloses an industrial control filter, including a filter, an anti-slip device, and a wire clamp. The filter has connecting seats on its left and right sides, each with three wiring slots. Each wiring slot contains a connecting piece electrically connected to the filter. The anti-slip device is installed on the edge of the connecting seat. A wire is inserted into the wiring slot. The wire clamp is installed on the upper surface of the connecting seat, with the wire core contacting the connecting piece. After inserting the wire into the connecting seat, rotating the L-shaped clamping handle presses the wire onto the connecting piece through the insulating pad, thus connecting the wire to the filter. The wiring operation is convenient, eliminating the need for a wrench to tighten the nut, improving wiring efficiency. If a wiring error occurs, rotating the L-shaped clamping handle releases the wire, allowing for quick repositioning and faster completion of the wiring work. When pulling the wire, the connecting rod increases the pressure on the wire through the clamp, making it difficult for the wire to separate from the filter, ensuring a good and stable connection.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to an industrial control filter. Background Technology

[0002] A filter is a filtering circuit composed of capacitors, inductors, and resistors. A filter can effectively filter out specific frequencies or frequencies outside of those frequencies in a power supply line, making the signal clearer, more stable, and more reliable.

[0003] In related technologies, a filter (publication number CN221948148U) scheme was found, in which the filter housing has multiple electrical connection ports, and a rectangular cavity contains multiple filter elements. The filter elements include an initial filter element and at least one supplementary filter element connected in parallel with the initial filter element. At least one electrical connection port electrically connects an initial filter element and at least one supplementary filter element. The scheme ensures that the overall installation size of the initial filter element remains unchanged, while integrating multiple initial filter elements into the rectangular cavity, so that the space between adjacent initial filter elements can be well utilized, thereby allowing the supplementary filter elements to be connected in parallel with the initial filter elements, increasing the number of filter elements in the filter.

[0004] However, the filter in the above scheme uses output port and input port wiring. The output port and input port wiring is achieved by connecting the wires through screws and nuts. The exposed wires need to be wrapped around the screws and fixed with nuts. Since tightening the screws and nuts requires a certain amount of force, tools such as wrenches are needed to complete this task. These steps are relatively cumbersome and increase the wiring operation. Utility Model Content

[0005] The purpose of this invention is to provide an industrial control 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 industrial control filter, including a filter, with connecting seats on the left and right sides of the filter, the connecting seats having three wiring slots, and connecting pieces electrically connected to the filter in the wiring slots, with wires contacting the connecting pieces to achieve power connection of the filter;

[0007] An anti-slip device is installed on the edge of the connector. When the wire is inserted into the wiring groove, the anti-slip device presses on the outer sheath of the wire to prevent the wire from separating from the connector, ensuring good circuit contact and preventing poor contact.

[0008] The wire clamp is installed on the upper surface of the connector. The wire core contacts the connector plate, and the wire clamp presses on the wire core to ensure that the circuit is not broken and the filter functions stably. With the anti-slip device, it can prevent the wire from loosening. It is convenient to connect and also prevents the circuit from breaking.

[0009] Furthermore, the anti-slip device includes an elastic mechanism and a connecting rod. The connecting rod is rotatably connected to the connecting seat via a pin. The connecting rod is rotatably connected to a pressure seat. The inclined connecting rod can prevent the wire from being pulled. The wire is not easily separated from the filter when pulled by external force. The elastic mechanism ensures that the wire is stably pressed.

[0010] Furthermore, an arc-shaped rubber pad is fixedly connected to the lower surface of the pressure seat, which can protect the wire and increase the resistance to pulling the wire, thus enhancing the wire-pulling ability.

[0011] Furthermore, the wire clamping device includes an L-shaped clamping handle and an elastic retaining strip. The elastic retaining strip is fixedly connected to the connecting seat, and the L-shaped clamping handle is rotatably connected to the connecting seat. The elastic retaining strip holds the L-shaped clamping handle in place. The elastic retaining strip has an integrally formed hook that blocks the L-shaped clamping handle. Rotating the L-shaped clamping handle allows for quick wire connection, simplifying the wire connection operation.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) Insert the wire into the connector and rotate the L-shaped clamping handle to press the wire onto the connector plate through the insulating pad, thus connecting the wire to the filter. The wiring operation is convenient and does not require the use of a wrench to tighten the nut, which improves the wiring efficiency. If the wiring is incorrect, rotate the L-shaped clamping handle to release the wire and quickly change the wiring position, so that the wiring work can be completed faster.

[0014] (2) When the wire passes through the connector, it is below the pressure seat. Tighten the screw tube so that the spring presses the connecting rod. The connecting rod drives the pressure seat to press the wire. Since the connecting rod is in an inclined state, when the wire is pulled, the pressure of the connecting rod on the wire through the pressure seat increases. It is not easy to pull the wire away from the filter, and the wiring is good and stable. Attached Figure Description

[0015] Figure 1 This is a top view of the present invention;

[0016] Figure 2 This is a schematic diagram showing the connection between the connecting seat and the clamping strip of this utility model;

[0017] Figure 3 This is a schematic diagram of the connection between the insert shaft and the connecting rod of this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the connector of this utility model;

[0019] Figure 5 This is the circuit diagram of the filter of this utility model.

[0020] In the diagram: 1. Filter; 2. Mounting plate; 3. Fixing hole; 4. Connecting seat; 5. Clamping strip; 6. L-shaped clamping handle; 7. Elastic retaining strip; 8. Screw tube; 9. Connecting plate; 10. Insert shaft; 11. Connecting rod; 12. Pressure seat; 13. Insulating pad; 14. Spring; 15. Arc-shaped rubber pad; 16. Hook. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example:

[0023] Please see Figure 1-5 This utility model provides a technical solution: an industrial control filter, including a filter, the circuit diagram of which is shown below. Figure 5 As shown, rated voltage: 440 / 250VAC; operating frequency: DC~60Hz; rated current: 5~200A@40℃max; operating temperature: -40℃~70℃; grounding capacitance: 22nF; MAX leakage current <1mA;

[0024] like Figure 5 As shown, three-phase power input: The circuit first receives three-phase power input, labeled A, B, and C respectively;

[0025] Preliminary filtering: Each input terminal A, B, and C is connected to a filter capacitor Cx. The main function of these capacitors is to filter out high-frequency noise in the power supply and ensure the stable operation of subsequent circuits.

[0026] Resistance balancing and damping: There is a resistor R between phases A and B and between phases B and C. These resistors may be used to balance the current in the circuit to prevent equipment damage caused by current imbalance. At the same time, they may also act as damping resistors to reduce oscillations and interference in the circuit.

[0027] Inductor filtering: The circuit includes inductors L1 and L2, which, together with the filter capacitor Cy, form a low-pass filter. Inductors have a good filtering effect on low-frequency noise, effectively filtering out noise below a certain frequency and further purifying the power supply;

[0028] Resonant filtering: Each of the two ends of inductors L1 and L2 is connected to a filter capacitor Cy. These capacitors, together with the inductors, form a resonant circuit. The resonant circuit can filter out noise at specific frequencies, further improving the purity of the power supply.

[0029] Grounding: The other end of all filter capacitors is connected to ground, forming a complete filter circuit. Grounding is a crucial aspect of circuit design, ensuring its stability and safety.

[0030] Output terminals: After multi-stage filtering, the power supply outputs to terminals A', B', and C', providing clean power to the load. Devices connected to these output terminals will be able to operate stably and will not malfunction due to noise and interference in the power supply.

[0031] This industrial control filter effectively reduces noise and interference in the power supply through a combination of multi-stage filtering (capacitors, resistors, and inductors), providing a clean power output.

[0032] In this embodiment, the filter 1 is provided with a connecting seat 4 on the left and right sides. The connecting seat 4 is provided with three wiring slots. The wiring slots are provided with connecting pieces 9 that are electrically connected to the filter 1. The connecting pieces 9 are arc-shaped to facilitate connection with wires.

[0033] The anti-slip device is installed on the edge of the connector 4. The wire is inserted into the wiring groove and the anti-slip device presses on the outer sheath of the wire. When the wire is pulled, it can prevent the wire from separating from the filter 1. It has strong tensile strength and stable wiring.

[0034] The wire clamp is installed on the upper surface of the connector 4. The wire core contacts the connector 9. The wire clamp presses on the wire core to achieve electrical connection between the wire and the filter 1. Pressing on the wire core will prevent poor contact and ensure stable operation of the filter 1.

[0035] In this embodiment, as Figure 1 As shown, the filter 1 has mounting plates 2 on both the left and right sides. The mounting plates 2 have fixing holes 3. By using screws and nuts in conjunction with the fixing holes 3, the filter 1 can be fixed to the designated position to ensure that the filter 1 is installed stably.

[0036] In this embodiment, as Figure 4 As shown, the anti-slip device includes an elastic mechanism and a connecting rod 11. The connecting rod 11 is rotatably connected to the connecting seat 4 via a plug shaft 10. The connecting rod 11 is rotatably connected to a pressure seat 12. The connecting rod 11 is inclined. When an external force pulls the wire, the connecting rod 11 cannot rotate, which prevents the pressure seat 12, which is rotatably connected to the connecting rod 11, from moving, thus ensuring that the resistance to pulling the wire is large and preventing the wire from separating from the filter 1.

[0037] In this embodiment, as Figure 4 As shown, an arc-shaped rubber pad 15 is fixedly connected to the lower surface of the pressure base 12. The arc-shaped rubber pad 15 has a large contact area with the wire of the prototype, which can stably press the wire and prevent the pressure base 12 from damaging the wire.

[0038] In this embodiment, as Figure 4 As shown, the elastic mechanism includes a pressing strip 5 and a screw tube 8 screwed to the pressing strip 5. A spring 14 is fixedly connected to the screw tube 8. The spring 14 presses down on the connecting rod 11. Twisting the screw tube 8 causes the spring 14 to press down on the connecting rod 11, restricting the rotation of the connecting rod 11 and preventing the pressure of the pressure seat 12 on the wire from decreasing due to vibration and other factors, thus ensuring that the wire is stably pressed down.

[0039] In this embodiment, as Figure 2 and Figure 4 As shown, the wire clamping device includes an L-shaped clamping handle 6 and an elastic retaining strip 7. The elastic retaining strip 7 is fixedly connected to the connecting seat 4 and is made of plastic. The L-shaped clamping handle 6 is rotatably connected to the connecting seat 4. The elastic retaining strip 7 holds the L-shaped clamping handle 6 in place. Rotating the L-shaped clamping handle 6 can press the wire onto the connecting piece 9. The elastic retaining strip 7 can restrict the rotation of the L-shaped clamping handle 6 and maintain the contact state between the wire and the connecting piece 9.

[0040] In this embodiment, as Figure 4 As shown, the elastic clip 7 has an integrally formed hook 16, which blocks the L-shaped clamping handle 6. By prying the elastic clip 7, the hook 16 can be separated from the L-shaped clamping handle 6, and the L-shaped clamping handle 6 can be rotated to separate from the wire, making it easier to remove the wire.

[0041] In this embodiment, as Figure 4 As shown, an insulating pad 13 is inserted into the lower end of the L-shaped clamping handle 6 to ensure electrical safety and to clamp the wire more stably.

[0042] Specifically, when using the wire, after stripping the insulation, insert it into the connector 4 and rotate the L-shaped clamping handle 6 to vertically connect the connector 4. At this time, the wire pushes against the pressure seat 12, and the pressure seat 12 pushes against the spring 14 through the connecting rod 11. During the process of inserting the wire into the connector 4, the connecting rod 11 will not jam the wire through the pressure seat 12, ensuring that the wire can smoothly contact the connector 9.

[0043] Next, rotate the L-shaped clamping handle 6. The L-shaped clamping handle 6 presses the wire onto the connecting piece 9 through the insulating pad 13. The elastic clip 7 locks the L-shaped clamping handle 6 through the hook 16, keeping the wire in contact with the connecting piece 9. The inclined connecting rod 11 presses the wire through the pressure seat 12. When the wire is pulled, the wire drives the connecting rod 11 to rotate through the pressure seat 12. The inclined connecting rod 11 is restricted by the connecting seat 4 and cannot rotate, so the wire can be clamped. The wire is not easy to slip under the pulling force, and the connection between the wire and the filter 1 is stable.

[0044] 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 industrial control filter, characterized in that, include: The filter (1) has a connecting seat (4) on its left and right sides. The connecting seat (4) has three wiring slots and a connecting piece (9) that is electrically connected to the filter (1). Anti-slip device, the anti-slip device is installed on the edge of the connector (4), the wire is inserted into the wiring groove, and the anti-slip device presses on the outer sheath of the wire; A wire crimper is installed on the upper surface of the connector (4), the wire core is in contact with the connector (9), and the wire crimper presses on the wire core.

2. The industrial control filter according to claim 1, characterized in that: The filter (1) has mounting plates (2) on both the left and right sides, and the mounting plates (2) have fixing holes (3).

3. An industrial control filter according to claim 1, characterized in that: The anti-slip device includes an elastic mechanism and a connecting rod (11). The connecting rod (11) is rotatably connected to the connecting seat (4) via a plug shaft (10). The connecting rod (11) is rotatably connected to a pressure seat (12).

4. An industrial control filter according to claim 3, characterized in that: An arc-shaped rubber pad (15) is fixedly connected to the lower surface of the pressure seat (12).

5. An industrial control filter according to claim 3, characterized in that: The elastic mechanism includes a pressing bar (5) and a screw tube (8) screwed to the pressing bar (5). A spring (14) is fixedly connected to the screw tube (8), and the spring (14) presses down the connecting rod (11).

6. An industrial control filter according to claim 1, characterized in that: The wire clamp includes an L-shaped clamping handle (6) and an elastic retaining strip (7). The elastic retaining strip (7) is fixedly connected to the connecting seat (4), and the L-shaped clamping handle (6) is rotatably connected to the connecting seat (4). The elastic retaining strip (7) clamps the L-shaped clamping handle (6).

7. An industrial control filter according to claim 6, characterized in that: The elastic clip (7) has an integrally formed hook (16) that blocks the L-shaped clamping handle (6).

8. An industrial control filter according to claim 6, characterized in that: An insulating pad (13) is inserted into the lower end of the L-shaped clamping handle (6).

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