CN209982033U - Filter with self-protection function - Google Patents

Abstract

The utility model discloses a wave filter with self-protection function in the technical field of wave filter, including the circuit board, weld two sets of No. two coils, No. one coil, gas discharge tube, X1 electric capacity, Z1 electric capacity, earth conductor, X2 electric capacity, resistance, fuse tube, No. one input wire, Y2 electric capacity, No. one output wire, No. two output wires and No. two input wires through the electric iron on the circuit board respectively, No. one input wire and No. two input wires are located the left side of circuit board upper and lower respectively; the utility model discloses a with orderly the fixing on the circuit board of each components and parts, avoid because of the mixed and disorderly distribution of components and parts, the mutual influence between the components and parts that lead to through fuse tube and gas discharge tube connect in parallel in the circuit, can effectual protection circuit, when the electric current through the wave filter is too big or the circuit goes wrong, prevents through fuse tube protection circuit that whole wave filter from burning out, has improved the life of wave filter, reduces the unnecessary loss.

Description

Filter with self-protection function

Technical Field

The utility model relates to a wave filter technical field, concretely relates to wave filter with oneself protect function.

Background

The filter is a filter circuit consisting of a capacitor, an inductor and a resistor. The filter can effectively filter the frequency point of the specific frequency in the power line or the frequencies except the frequency point to obtain a power signal of the specific frequency or eliminate the power signal of the specific frequency. Filtering is an important concept in signal processing, and a filter circuit in a direct current stabilized power supply has the functions of reducing alternating current components in pulsating direct current voltage as much as possible, keeping the direct current components, reducing the ripple coefficient of output voltage and smoothing the waveform. The traditional filter has insufficient protection for the internal circuit of the filter, and once the current passing through the filter is too large, the circuit of the filter is easy to break down, the whole filter is often replaced, so that the resource waste is caused, and the production cost is increased. And the position is mixed and disorderly when the component of traditional wave filter is connected for produce the interact easily between each device, thereby lead to the filtering performance poor, wave filter life is short, causes unnecessary loss. Based on this, the utility model designs a wave filter with oneself protect function to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wave filter with oneself protect function to solve the current device that proposes among the above-mentioned background art and to the not enough problem of circuit protection.

In order to achieve the above object, the utility model provides a following technical scheme: a filter with a self-protection function comprises a circuit board, wherein two groups of coils, a coil, a gas discharge tube, an X1 capacitor, a Z1 capacitor, a grounding lead, an X2 capacitor, a resistor, a fuse tube, an input lead, a Y2 capacitor, an output lead and an input lead are welded on the circuit board through electric soldering irons respectively, the input lead and the input lead are located above and below the left side of the circuit board respectively, the left end parts of the input lead and the input lead are connected through a wire connector, the output lead and the output lead are located above and below the right side of the circuit board respectively, the right end parts of the output lead and the output lead are connected through the wire connector, the Z1 capacitor is located in the left center of the circuit board, the X1 capacitor is located on the right side of a Z1 capacitor, fuse tube and gas discharge tube are located the top and the below of X1 electric capacity respectively, a coil is located the right side of X1 electric capacity, the right side top and the below of a coil are equipped with two sets of No. two coils respectively, and are two sets of vertical symmetry is equipped with two sets of Y2 electric capacities between the relative inboard of No. two coils, resistance is located the right side central authorities of circuit board, X2 electric capacity is located the left side of resistance, earth conductor is located two sets of respectively the relative inboard central authorities of Y2 electric capacity and X2 electric capacity.

Preferably, one surface of the two groups of coils facing the first coil is not wound with enameled wires.

Preferably, an insulating sheet is inserted into the first coil, the insulating sheet is PA66-4306G30 in model number, and the insulating sheet separates two groups of enameled wires symmetrical to the outer surface of the first coil.

Preferably, the medium of the Z1 capacitor and the medium of the Y2 capacitor are both Y5V, the Y2 capacitor is a grounded capacitor, the positive electrode of the Y2 capacitor is connected with a circuit, and the negative electrode of the Y2 capacitor is grounded.

Preferably, the model of the fuse tube is T3.15A-250V.

Preferably, the gas discharge tube is RA 302V-07B.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) through fixing each components and parts on the circuit board orderly for work that can be better between each components and parts of wave filter, the shared space of effectual reduction wave filter in equipment avoids because of the mixed and disorderly distribution of components and parts, the interact between the components and parts that lead to, thereby more effective protection wave filter.

(2) The inductance of the filter is improved by adding two second coils to be matched with the first coil, so that the filtering effect is enhanced, and meanwhile, the second coil can continue to work under the condition that the first coil is damaged and cannot work normally, so that the normal work of the filter is guaranteed.

(3) Through fuse tube and gas discharge tube parallelly connected in the circuit, can effectual protection circuit, when the electric current through the wave filter is too big or the circuit goes wrong, thereby gas discharge tube can unusual scintillation play the alarm suggestion, fuse tube can be the preferred fusing simultaneously, only need change the fuse tube like this and need not change whole wave filter, and then protection circuit prevents that whole wave filter from burning out, has improved the life of wave filter, reduces the unnecessary loss.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a schematic diagram of the circuit structure of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

the circuit comprises a 1-second coil, a 2-first coil, a 3-gas discharge tube, a 4-X1 capacitor, a 5-Z1 capacitor, a 6-circuit board, a 7-grounding lead, an 8-X2 capacitor, a 9-resistor, a 10-fuse tube, a 11-first input lead, a 12-Y2 capacitor, a 13-first output lead, a 14-second output lead and a 15-second input lead.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a filter with a self-protection function comprises a circuit board 6, wherein two groups of second coils 1, first coils 2, a gas discharge tube 3, an X1 capacitor 4, a Z1 capacitor 5, a grounding lead 7, an X2 capacitor 8, a resistor 9, a fuse tube 10, a first input lead 11, a Y2 capacitor 12, a first output lead 13, a second output lead 14 and a second input lead 15 are welded on the circuit board 6 through electric soldering irons respectively, the first input lead 11 and the second input lead 15 are positioned above and below the left side of the circuit board 6 respectively, the left end parts of the first input lead 11 and the second input lead 15 are connected through a wire connector, the first output lead 13 and the second output lead 14 are positioned above and below the right side of the circuit board 6 respectively, the right end parts of the first output lead 13 and the second output lead 14 are connected through a wire connector, the Z1 capacitor 5 is positioned in the center of the left side of the circuit board 6, x1 electric capacity 4 is located the right side of Z1 electric capacity 5, fuse tube 10 and gas discharge tube 3 are located the top and the below of X1 electric capacity 4 respectively, No. 2 coil is located the right side of X1 electric capacity 4, No. 2 coil is equipped with two sets of No. 1 coils respectively above and below the right side, two sets of No. 1 coils of two coils of 1 coils of relative inboard vertical symmetry is equipped with two sets of Y2 electric capacity 12, resistance 9 is located the right side center of circuit board 6, X2 electric capacity 8 is located the left side of resistance 9, earth conductor 7 is located the relative inboard center of two sets of Y2 electric capacity 12 and X2 electric capacity 8 respectively.

Wherein, two sets of No. two coils 1 do not twine the enameled wire towards the one side of No. one coil 2.

The insulating sheet is inserted into the first coil 2, the insulating sheet is PA66-4306G30 in the type, the insulating sheet separates two groups of enameled wires of the first coil 2 with symmetrical outer surface, and the insulating sheet is inserted into the first coil 2 to separate two groups of enameled wires of the first coil 2 with symmetrical outer surface, so that mutual interference of the two groups of enameled wires in working is avoided, and circuits are protected.

The medium of the Z1 capacitor 5 and the medium of the Y2 capacitor 12 are Y5V, the capacitor has larger capacitance and lower price, and has higher cost performance in equipment with small temperature change, the Y2 capacitor 12 is a grounded capacitor, the positive electrode of the capacitor is connected with a circuit, the negative electrode of the capacitor is grounded, and the capacitor can play a role of cutting off direct current through alternating current.

The fuse tube 10 is model number T3.15A-250V.

The gas discharge tube 3 is of the type RA 302V-07B.

One specific application of this embodiment is: by engraving areas with marks on the circuit board 6 and arranging slotted holes matched with pins of each electronic element in the areas, so that the electronic element can be more conveniently and efficiently inserted into the circuit board 6, the production efficiency of workers is improved, two groups of coils 1, 2, gas discharge tubes 3, X1 capacitors 4, Z1 capacitors 5, grounding leads 7, X2 capacitors 8, resistors 9, fuse tubes 10, I input leads 11, Y2 capacitors 12, I output leads 13, II output leads 14 and II input leads 15 are fixed on a circuit board 6 in order, the filter has the advantages that the filter can work better among all components, the occupied space of the filter in equipment is effectively reduced, the mutual influence among the components caused by the disordered distribution of the components is avoided, and the filter is protected more effectively.

Through increasing two No. 1 coils, the inductance value that has improved the wave filter with No. 2 coil cooperations and then has strengthened the filtering effect, appear damaging and under the unable normal condition of working in No. 2 coil simultaneously, No. 1 coil also can continue the normal work of work assurance wave filter, No. 1 coil of installing on circuit board 6 does not twine the enameled wire towards the one side of No. 2 coil, and then avoid No. 1 coil and No. 2 coil to produce mutual effect at the during operation, thereby influence the work of wave filter, disturb the filtering effect.

Through fuse tube 10 and gas discharge tube 3 parallelly connected in the circuit, can effectual protection circuit, when the electric current through the wave filter is too big or the circuit goes wrong, thereby gas discharge tube 3 can unusual scintillation play the alarm suggestion, fuse tube 10 can be preferentially fused simultaneously, only need change fuse tube 10 like this and need not change whole wave filter, and then protection circuit prevents that whole wave filter from burning out, the life of wave filter has been improved, reduce unnecessary loss.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (6)

1. A filter with self-protection function, comprising a circuit board (6), characterized in that: two groups of second coils (1), first coils (2), a gas discharge tube (3), an X1 capacitor (4), a Z1 capacitor (5), a grounding lead (7), an X2 capacitor (8), a resistor (9), a fuse tube (10), a first input lead (11), a Y2 capacitor (12), a first output lead (13), a second output lead (14) and a second input lead (15) are welded on the circuit board (6) through electric soldering irons respectively, the first input lead (11) and the second input lead (15) are located above and below the left side of the circuit board (6) respectively, the left end portions of the first input lead (11) and the second input lead (15) are connected through wire connectors, the first output lead (13) and the second output lead (14) are located above and below the right side of the circuit board (6) respectively, and the right end portions of the first output lead (13) and the second output lead (14) are connected through wire connectors, z1 electric capacity (5) are located the left side central authorities of circuit board (6), X1 electric capacity (4) are located the right side of Z1 electric capacity (5), fuse tube (10) and gas discharge tube (3) are located the top and the below of X1 electric capacity (4) respectively, No. one coil (2) are located the right side of X1 electric capacity (4), the right side top and the below of No. one coil (2) are equipped with two sets of No. two coils (1) respectively, and are two sets of vertical symmetry is equipped with two sets of Y2 electric capacity (12) between the relative inboard of No. two coils (1), resistance (9) are located the right side central authorities of circuit board (6), X2 electric capacity (8) are located the left side of resistance (9), earth conductor (7) are located two sets of Y2 electric capacity (12) and the relative inboard central authorities of X2 electric capacity (8) respectively.

2. The filter with self-protection function according to claim 1, wherein: one surface of the two groups of second coils (1) facing the first coil (2) is not wound with enameled wires.

3. The filter with self-protection function according to claim 1, wherein: insert the insulating piece in No. one coil (2), and the model of insulating piece is PA66-4306G30, the insulating piece cuts off two sets of enameled wires of No. one coil (2) surface symmetry.

4. The filter with self-protection function according to claim 1, wherein: the medium of the Z1 capacitor (5) and the medium of the Y2 capacitor (12) are both Y5V, the Y2 capacitor (12) is a grounded capacitor, the positive electrode of the Y2 capacitor is connected with a circuit, and the negative electrode of the Y2 capacitor is grounded.

5. The filter with self-protection function according to claim 1, wherein: the model of the fuse tube (10) is T3.15A-250V.

6. The filter with self-protection function according to claim 1, wherein: the type of the gas discharge tube (3) is RA 302V-07B.

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