Filter

Abstract

The embodiment of the invention relates to the technical field of filters, and discloses a filter, which comprises a first conductor and a second conductor, the first conductor and the second conductor are arranged side by side, the first conductor is provided with a first bending part V, and the first bending part V is parallel to the first conductor or the second conductor; the first connecting terminal is connected with the fifth first bending part through a fuse link; the second connecting terminal is connected with the fifth first bending part through a fuse link; and the filtering module comprises a plurality of capacitor units. Wherein the capacitor unit is located at the side edge position of the first conductor and / or the second conductor. According to the invention, the problem that safety accidents are easily caused when the circuit is overloaded in the actual use process of the existing filter can be effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of filters, and in particular to a filter. Background Art

[0002] A filter is a device or circuit that processes signals. Its main function is to allow signals within a specific frequency range to pass through through a specific frequency response, while blocking or attenuating signals of other frequencies. The filter can transmit power to the device without attenuation, greatly attenuate electromagnetic interference signals transmitted through the power supply, and protect the device from damage.

[0003] At present, the X and Y capacitors used in the filter are best placed at the DC input port of the controller, so that the existing filter is prone to cause safety accidents when its circuit is overloaded during actual use. Summary of the invention

[0004] One purpose of the present application is to provide a filter to improve the problem that current filters are prone to causing safety accidents when the circuit is overloaded during use.

[0005] To achieve the above objectives, some embodiments of the present application provide a filter, which includes:

[0006] A first conductor and a second conductor, wherein the first conductor and the second conductor are arranged side by side, the first conductor is provided with a first bending portion five, and the first bending portion five is arranged parallel to the first conductor or the second conductor;

[0007] A connecting terminal 1 connected to the first bending portion 5 via a fuse;

[0008] A connecting terminal 2 connected to the first bending portion 5 via a fuse; and

[0009] A filter module, comprising a plurality of capacitor units;

[0010] Wherein, the capacitor unit is located at a side of the first conductor and / or the second conductor.

[0011] In one embodiment of the present invention, the first conductor is provided with a first bending portion 1, a first bending portion 2, a first bending portion 3 and a first bending portion 4 in sequence;

[0012] Wherein, the first bending portion five is connected to the end of the first bending portion four.

[0013] In one embodiment of the present invention, the first conductor, the first bending portion 1, the first bending portion 2, the first bending portion 3, the first bending portion 4 and the first bending portion 5 are integrally formed, and the bending angle between adjacent ones is 90 degrees.

[0014] In one embodiment of the present invention, the second conductor is provided with a second bending portion 1, a second bending portion 2, a second bending portion 3, a third bending portion 4 and a second bending portion 5 in sequence;

[0015] The second conductor, the second bending portion 1, the second bending portion 2, the second bending portion 3, the second bending portion 4 and the second bending portion 5 are integrally formed, and the bending angle between adjacent ones is 90 degrees.

[0016] In one embodiment of the present invention, a magnetic ring is disposed on one side of the first bending portion 2 and the second bending portion 3.

[0017] In one embodiment of the present invention, the first conductor and the second conductor are respectively fixedly connected with a connecting contact rod;

[0018] Wherein, two connecting contact rods are symmetrically arranged on the first conductor or the second conductor.

[0019] In one embodiment of the present invention, the fuse is a plug-in fuse, a spiral fuse, a sealed fuse, a fast fuse or a self-resetting fuse.

[0020] In one embodiment of the present invention, the plurality of capacitor units include a safety capacitor Y capacitor 1, a safety capacitor Y capacitor 2 and a safety capacitor X capacitor;

[0021] The safety capacitor Y capacitor 1 is connected to the PC substrate and is located below the first bending portion 3 and the second bending portion 4;

[0022] The safety capacitor Y capacitor 2 is located below the first conductor and the second conductor; and

[0023] The safety capacitor X capacitor is located above the first conductor and the second conductor.

[0024] In one aspect of the present invention, it further includes a ferrite core which is sleeved on the first conductor and the second conductor.

[0025] In one aspect of the present invention, a shell is further included, and the first conductor and the second conductor are respectively embedded in the shell.

[0026] In summary, the present invention discloses a filter that can effectively prevent overload current. When the current exceeds its rated value, the fuse will melt and cut off the circuit, thereby protecting the filter and the entire circuit system from damage caused by overload current. At the same time, since the action speed of the fuse is usually very fast, it can be melted within a few milliseconds. The fuse can quickly detect the short-circuit current and melt in a very short time to disconnect the faulty circuit from the power supply. It can avoid short-circuit current from causing serious thermal and mechanical damage to the filter and other equipment. At the same time, by cutting off the short-circuit current in time, the fuse can limit the fault range to the minimum range, prevent the fault from spreading to other parts of the circuit, and help improve the reliability and safety of the entire power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0028] Figure 1 A schematic diagram of a filter in one embodiment of the present invention;

[0029] Figure 2 It is a structural schematic diagram of a filter of the present invention from a perspective behind a hidden housing in one embodiment;

[0030] Figure 3 A schematic structural diagram of a filter according to an embodiment of the present invention, from another perspective, hidden behind a housing;

[0031] Figure 4 A schematic diagram of the structure of a first conductor and a second conductor of a filter in one embodiment of the present invention;

[0032] Figure 5 The figure is a schematic structural diagram of a first conductor of a filter in one embodiment of the present invention.

[0033] Description of Figure Numbers:

[0034] 10. Shell; 11. PC substrate; 12. Safety capacitor Y capacitor 1; 13. Safety capacitor Y capacitor 2; 14. Safety capacitor X capacitor; 15. Ferrite core;

[0035] 100, first conductor; 101, first bending portion 1; 102, first bending portion 2; 103, first bending portion 3; 104, first bending portion 4; 105, first bending portion 5; 110, connecting contact rod;

[0036] 200, connecting terminal 1; 210, connecting terminal 2;

[0037] 300, fuse;

[0038] 400, second conductor; 401, second bending portion one; 402, second bending portion two; 403, second bending portion three; 404, second bending portion four; 405, second bending portion five; 500, magnetic ring. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] First embodiment

[0041] See also Figures 1 to 5 The present invention discloses a filter, which at least includes a first conductor 100, a second conductor 400, a connection terminal 1 200, a connection terminal 210 and a filter module. The filter module is located on the current path of the first conductor 100 and the second conductor 400 to achieve filtering processing.

[0042] It should be noted that the first conductor 100 and the second conductor 400 are arranged side by side, and a first bending portion 5 105 is arranged on the first conductor 100. The first bending portion 5 105 is arranged in parallel with the first conductor 100 or the second conductor 400. The first connection terminal 200 and the second connection terminal 210 are respectively connected to the first bending portion 5 105, and the first connection terminal 200 and the second connection terminal 210 are respectively connected to the first bending portion 5 105 through the fuse 300.

[0043] By disposing the fuse 300 between the first connection terminal 200 and the first bending portion 5 105, and between the second connection terminal 210 and the first bending portion 5 105, the circuit can be protected by the fuse 300 to prevent safety accidents caused by circuit overload.

[0044] Specifically, the fuse 300 may be a plug-in fuse, a spiral fuse, a sealed fuse, a fast fuse, or a self-resetting fuse. In this embodiment, the fuse 300 is a plug-in fuse, but it is not limited thereto, and the specific type of the fuse 300 may be determined according to actual needs.

[0045] It should be noted that the filter module includes a plurality of capacitor units, and the capacitor unit is located on the side of the first conductor 100 or the second conductor 400. By arranging the capacitor unit on the side of the first conductor 100 or the second conductor 400, a compact circuit layout can be achieved, and the line length and signal transmission delay can be reduced. It is particularly important for high-speed digital circuits and radio frequency circuits, because too long lines can cause signal attenuation, distortion and interference circuits and radio frequency circuits. At the same time, it is also allowed to select capacitor units of different capacities, types and packages for combination according to specific filtering requirements. For example, multiple small-capacity ceramic capacitors can be used in parallel to improve the high-frequency filtering effect. Or a large-capacity electrolytic capacitor and a small-capacity ceramic capacitor are used in series to achieve broadband filtering. In actual operation, if the filtering effect is not ideal, the capacitor unit can be easily replaced or adjusted without large-scale changes to the entire circuit. In addition, capacitor units are usually easier to detect and diagnose faults, which is conducive to improving the reliability and maintainability of the circuit.

[0046] In some embodiments, the filtering module includes a plurality of capacitor units.

[0047] Specifically, the plurality of capacitor units may include a safety capacitor Y capacitor 12, a safety capacitor Y capacitor 2 13, and a safety capacitor X capacitor 14. The safety capacitor Y capacitor 12 is connected to the PC substrate 11 and is located below the first bending portion 3 103 and the second bending portion 404. The safety capacitor Y capacitor 2 13 is located below the first conductor 100 and the second conductor 400, and the safety capacitor X capacitor 14 is located above the first conductor 100 and the second conductor 400.

[0048] Specifically, the safety capacitor X capacitor 14 is mainly used to bridge between the two lines (LN) of the power line to suppress differential mode interference. It can be understood that in this embodiment, the first conductor 100 and the second conductor 400 are respectively connected to the two lines of the power line. Usually, the safety capacitor X capacitor 14 can withstand a higher pulse voltage, such as in a power filter, which can effectively filter out high-frequency interference signals in the power grid and make the power output more stable. In some embodiments, the safety capacitor X capacitor generally uses metallized polypropylene film as a dielectric material, with a higher withstand voltage value and a smaller capacity. Its capacity is usually below the microfarad level, and common ones are 0.1μF, 0.22μF, 0.33μF, etc.

[0049] Furthermore, the safety capacitor Y capacitor 1 12 and the safety capacitor Y capacitor 2 13 are respectively connected between the power line and the ground line (LG / NG) to suppress common mode interference. The safety capacitor Y capacitor 1 12 and the safety capacitor Y capacitor 2 13 can effectively bypass the common mode interference signal to the ground, preventing the interference signal from propagating to other devices through the power line, thereby improving the electromagnetic compatibility of the electronic equipment.

[0050] In some embodiments, a ferrite core 15 is sleeved on the first conductor 100 and the second conductor 400. By sleeved on the first conductor 100 and the second conductor 400, electromagnetic interference can be effectively suppressed and electromagnetic radiation can be prevented.

[0051] Specifically, in the process of transmitting electric energy, the power line may generate various high-frequency noises, such as high-frequency pulses of switching power supplies, clock signals of digital circuits, etc. These high-frequency noises will be radiated into the surrounding environment through the power line, causing interference to other electronic devices. The ferrite core 15 has a high impedance to high-frequency signals, which can effectively suppress the propagation of these high-frequency noises and reduce the impact of electromagnetic interference. At the same time, the ferrite core 15 can absorb the electromagnetic radiation energy on the power line and reduce radiation interference. Especially in some occasions with high requirements for electromagnetic compatibility, such as medical equipment, communication equipment, etc., the installation of the ferrite core 15 can effectively reduce the electromagnetic radiation of the power line and improve the anti-interference ability of the equipment.

[0052] In some embodiments, it is allowed that the first bending portion 101, the first bending portion 102, the first bending portion 103, and the first bending portion 104 are sequentially arranged on the first conductor 100. Among them, the first bending portion 105 is connected to the end of the first bending portion 104. At the same time, the first conductor 100, the first bending portion 101, the first bending portion 102, the first bending portion 103, the first bending portion 104, and the first bending portion 105 are integrally formed, and the bending angles between adjacent ones are 90 degrees.

[0053] It can be understood that the second conductor 400 may be provided with a second bending portion 1 401, a second bending portion 2 402, a second bending portion 3 403, a third bending portion 4 and a second bending portion 5 405 in sequence. The second conductor 400, the second bending portion 1 401, the second bending portion 2 402, the second bending portion 3 403, the second bending portion 404 and the second bending portion 5 405 are integrally formed, and the bending angles between adjacent ones are 90 degrees.

[0054] However, it is not limited thereto, and in order to improve the compactness of the circuit layout of the filter during actual use, it can be determined according to actual needs.

[0055] Among them, a magnetic ring 500 is arranged on one side of the first bending portion 2 102 and the second bending portion 3 403. By setting the magnetic ring 500, the magnetic ring 500 can form a high impedance to the high-frequency electromagnetic interference signal, preventing these noises from propagating in the circuit. When there is high-frequency noise in the line, the magnetic ring 500 can reflect it back to the noise source or guide it to the ground, thereby reducing interference with other circuit parts. For example, by setting the magnetic ring 500 in the power line or signal line of the electronic device, the high-frequency noise from the external environment or the internal circuit can be effectively suppressed, and the anti-interference ability of the device can be improved. At the same time, the signal quality can also be improved.

[0056] Specifically, by suppressing electromagnetic interference, the magnetic ring 500 can improve the integrity of the signal. Reducing noise and interference can make the signal clearer and more stable, reducing the bit error rate and the possibility of data loss. In high-speed digital circuits and communication systems, improving signal quality is crucial to ensure accurate data transmission.

[0057] In some embodiments, the filter disclosed in the present invention further includes a housing 10, and the first conductor 100 and the second conductor 400 are embedded in the housing 10. The housing 10 may be made of engineering plastics, such as polycarbonate (PC), nylon, etc. Engineering plastics have good insulation properties, chemical corrosion resistance and mechanical strength. The plastic housing 10 is light in weight and easy to install and carry. At the same time, engineering plastics can be made into complex shapes through processes such as injection molding to meet different design requirements.

[0058] It should be noted that a connecting contact rod 110 is also embedded in the housing 10, and the connecting contact rod 110 is fixedly connected to the first conductor 100 and the second conductor 400. Specifically, two connecting contact rods 110 are symmetrically arranged on the first conductor 100 or the second conductor 400. The connecting contact rod 110 allows a stable signal reference potential to be provided for the internal circuit of the filter. In electronic circuits, the reference potential of the signal is crucial for correct signal processing and transmission. The contacts on the filter housing 10 can be used as signal reference points to ensure that the potential of each circuit node inside the filter is relatively stable, thereby improving the quality and reliability of the signal.

[0059] In summary, the present invention discloses a filter that can effectively prevent overload current. When the current exceeds its rated value, the fuse 300 will melt and cut off the circuit, thereby protecting the filter and the entire circuit system from damage caused by the overload current. At the same time, since the action speed of the fuse 300 is usually very fast, it can be melted within a few milliseconds. The fuse 300 can quickly detect the short-circuit current and melt in a very short time to disconnect the faulty circuit from the power supply. It can avoid the short-circuit current from causing serious thermal and mechanical damage to the filter and other equipment. At the same time, by cutting off the short-circuit current in time, the fuse 300 can limit the fault range to a minimum range, prevent the fault from spreading to other parts of the circuit, and help improve the reliability and safety of the entire power system.

[0060] The flow chart or block diagram in the accompanying drawings shows the possible architecture, function and operation of the equipment, method and computer program product according to various embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented with a dedicated system for hardware that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0061] The scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present application. Any figure mark in the claims should not be regarded as limiting the claims involved. In addition, it is clear that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. Multiple units or devices stated in the device claim may also be implemented by one unit or device through software or hardware. The words "first", "second", etc. are only used to distinguish the description, and do not indicate any particular order, nor can they be understood as indicating or implying relative importance.

[0062] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily mention changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims, and the above embodiments should be regarded as exemplary and non-restrictive.

Claims

1. A filter, characterized in that: include: A first conductor (100) and a second conductor (400), wherein the first conductor (100) and the second conductor (400) are arranged side by side, and a first bending portion five (105) is arranged on the first conductor (100), and the first bending portion five (105) is arranged in parallel with the first conductor (100) or the second conductor (400); The connection terminal 1 (200) is connected to the first bending portion 5 (105) via a fuse (300); The second connecting terminal (210) is connected to the first bending portion (105) via a fuse (300); as well as A filter module, comprising a plurality of capacitor units; Wherein, the capacitor unit is located on the side of the first conductor (100) and / or the second conductor (400).

2. The filter according to claim 1, characterized in that The first conductor (100) is provided with a first bending portion 1 (101), a first bending portion 2 (102), a first bending portion 3 (103) and a first bending portion 4 (104) in sequence; Wherein, the first bending portion five (105) is connected to the end of the first bending portion four (104).

3. The filter according to claim 1, characterized in that The first conductor (100), the first bending portion one (101), the first bending portion two (102), the first bending portion three (103), the first bending portion four (104) and the first bending portion five (105) are integrally formed, and the bending angle between adjacent ones is 90 degrees.

4. The filter according to claim 3, characterized in that The second conductor (400) is provided with a second bending portion 1 (401), a second bending portion 2 (402), a second bending portion 3 (403), a third bending portion 4 and a second bending portion 5 (405) in sequence; Among them, the second conductor (400), the second bending portion one (401), the second bending portion two (402), the second bending portion three (403), the second bending portion four (404) and the second bending portion five (405) are integrally formed, and the bending angle between adjacent ones is 90 degrees.

5. The filter according to claim 4, characterized in that The plurality of capacitor units include a safety capacitor Y capacitor 1 (12), a safety capacitor Y capacitor 2 (13) and a safety capacitor X capacitor (14); The safety capacitor Y capacitor 1 (12) is connected to the PC substrate (11) and is located below the first bending portion 3 (103) and the second bending portion 4 (404); The safety capacitor Y capacitor 2 (13) is located below the first conductor (100) and the second conductor (400); and The safety capacitor X capacitor (14) is located above the first conductor (100) and the second conductor (400).

6. The filter according to claim 4, characterized in that A magnetic ring (500) is provided on one side of the first bending portion 2 (102) and the second bending portion 3 (403).

7. The filter according to claim 1, characterized in that The first conductor (100) and the second conductor (400) are respectively fixedly connected with a connecting contact rod (110); Wherein, two connecting contact rods (110) are symmetrically arranged on the first conductor (100) or the second conductor (400).

8. The filter according to claim 1, characterized in that The fuse (300) is one of an insertable fuse, a spiral fuse, a closed fuse, a fast fuse or a self-resetting fuse.

9. The filter according to claim 1, characterized in that It also includes a ferrite core (15) which is sleeved on the first conductor (100) and the second conductor (400).

10. The filter according to claim 1, characterized in that It also includes a shell (10), wherein the first conductor (100) and the second conductor (400) are respectively embedded in the shell (10).

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