CN217240673U - Filter - Google Patents

Abstract

The utility model provides a filter, it includes: the shell is hollow and is provided with an upper opening to form an accommodating groove; the insulating plate is arranged in the accommodating groove; the first end of the terminal inserting sheet penetrates through the insulating plate and extends to the bottom of the accommodating groove, a plurality of pre-punched inserting holes are formed in the first end, and the second end of the terminal inserting sheet extends to the outside of the accommodating groove to be connected with an element to be connected; the filtering component is arranged on the insulating plate, and pins of the filtering component penetrate through the insulating plate and are inserted into the corresponding inserting holes; and the pouring sealant is used for encapsulating the insulation plate, the terminal insert and the filtering component in the accommodating groove. The utility model has simple structure and convenient use, realizes electrical connection by quickly pre-connecting the filtering component and the terminal insert, further realizes welding automation, improves the production efficiency and reduces the production cost; the pouring sealant seals the insulating plate, the terminal inserting piece and the filtering component in the accommodating groove, so that the working reliability of the whole filter is improved.

Description

Filter

Technical Field

The utility model belongs to the technical field of the assembly of the household electrical appliances frequency-selecting device, especially, relate to a wave filter.

Background

The drum type filters used in the household electrical appliance type filtering products are mostly drum type filters, the drum type filters are connected through leads or terminals, the terminals are difficult to connect with electronic components inside the filters, connection errors or input and output grounding errors are easy to occur, potential safety hazards are caused, and the joints are not standard, welding automation is difficult to achieve, and production efficiency is low. In addition, the box filter is made of a PCB plate, and filter components are arranged on the PCB, so that material saving is not facilitated, and cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned technical problem, a large-scale wave filter is proposed, this wave filter simple structure, convenient to use, but its filtering component and terminal inserted sheet are connected in advance fast, and then realize electric connection, and its junction is comparatively standard, can realize welding automation, has improved production efficiency, has reduced manufacturing cost.

In order to achieve the purpose, the utility model adopts the technical scheme that:

providing a filter, comprising:

the shell is hollow, and an upper opening of the shell forms an accommodating groove;

the insulating plate is arranged in the accommodating groove;

the first end of the terminal inserting sheet penetrates through the insulating plate and extends to the bottom of the accommodating groove, a plurality of pre-punched inserting holes are formed in the first end, and the second end of the terminal inserting sheet extends to the outside of the accommodating groove to be connected with an element to be connected;

the filtering component is arranged on the insulating plate, and pins of the filtering component penetrate through the insulating plate and are inserted into the corresponding inserting holes;

and the pouring sealant is used for encapsulating the insulation plate, the terminal inserting sheet and the filtering component in the accommodating groove.

According to the technical scheme, the plurality of pre-punched insertion holes are formed in the terminal insertion piece, so that the pins of the filtering component can be conveniently and quickly inserted, the electrical connection is realized, the connection position between the pins and the terminal insertion piece is standard, the automatic welding is convenient to realize, and the production efficiency is improved; the terminal insert and the insulating plate are combined for use to replace a PCB (printed circuit board) in the prior art, so that the material is saved, and the production cost is further reduced; simultaneously through the pouring sealant with insulation board, terminal inserted sheet and filtering component seals admittedly in the holding tank, has improved whole wave filter's anti-vibration, shock resistance, has improved operational reliability.

In some other embodiments of the present application, the filtering component includes a capacitor, and further includes an inductor or a resistor or a combination of the two.

In other embodiments of this application, the terminal inserted sheet with the integrative injection moulding of insulation board makes up both in advance, the grafting of the follow-up filtering subassembly of being convenient for.

In other embodiments of the present application, a partition is disposed on the insulating plate, and the partition is located between the terminal insertion piece and the filter assembly; the terminal insert is isolated and insulated from electronic components in the filter assembly by the aid of the partition plates.

In other embodiments of this application, the terminal inserted sheet includes input terminal inserted sheet and output terminal inserted sheet, the input terminal inserted sheet is used for receiving the electric signal of input, the output terminal inserted sheet is used for receiving the electric signal of output, the input terminal inserted sheet with be connected with between the output terminal inserted sheet filtering component.

In other embodiments of the present application, the number of the input terminal inserts is one or more, and the number of the output terminal inserts is one or more, which can be set according to actual needs, such as different phases or voltages.

In other embodiments of the present application, the terminal insert further comprises a ground terminal insert, and the ground terminal insert is used for electrical safety protection of the filter when in use.

In other embodiments of the present application, the pins of the filter assembly are welded and fixed in the insertion holes, and the welding manner improves the structural stability.

In other embodiments of the present application, the housing is a rectangular parallelepiped.

Other features and advantages of the present invention will become apparent from the following detailed description of the preferred embodiments, which is to be read in connection with the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of a filter according to an embodiment of the present invention;

fig. 2 is a schematic circuit diagram of a filter according to an embodiment of the present invention.

In the above figures: a filter 100; a housing 1; a housing tank 11; an insulating plate 2; a through hole 21; a partition plate 22; an input terminal insertion piece 31; an output terminal insert 32; a ground terminal insert 33; a first end 34; a second end 35; a filtering component 4; a common mode inductor 41; a magnetic core 411; a first coil 412; a second coil 413; pouring a sealant 5; and (6) inserting holes.

Detailed Description

The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features.

For better understanding of the above technical solutions, the following detailed descriptions are provided with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, in an exemplary embodiment of a filter 100 of the present invention, the filter 100 includes a housing 1, an insulating plate 2, a terminal insert, a filter assembly 4, and a potting adhesive 5. The shell 1 is hollow and is opened at the upper part to form an accommodating groove 11, and the shell 1 is preferably a cuboid; the insulating plate 2 is arranged in the accommodating groove 11, the first end 34 of the terminal insert penetrates through the insulating plate 2 and extends to the bottom of the accommodating groove 11, the first end 34 is provided with a plurality of pre-punched inserting holes 6, and the second end 35 of the terminal insert extends to the outside of the accommodating groove 11 to be connected with a component to be connected; the filter component 4 is arranged on the insulating plate 2, pins of the filter component 4 penetrate through the insulating plate 2 and are inserted into the corresponding insertion holes 6, and the pins of the filter component 4 are welded and fixed in the insertion holes 6; insulating board 2, terminal inserted sheet and filtering component 4 are encapsulated in holding tank 11 with casting glue 5. In this embodiment, the filter assembly 4 and the insertion hole 6 are connected by soldering.

In the filter 100 provided by the embodiment, the plurality of pre-punched insertion holes 6 are formed in the terminal insertion piece, so that the pins of the electronic component in the filter assembly 4 can be conveniently and quickly inserted, the electrical connection is realized, the connection position between the terminal insertion piece and the pins is standard, the automatic welding is convenient to realize, and the production efficiency is improved; the terminal insert and the insulating plate 2 are combined for use to replace a PCB (printed circuit board) in the prior art, so that the material is saved, and the production cost is further reduced; simultaneously through casting glue 5 with insulation board 2, terminal inserted sheet and filtering component 4 seals admittedly in holding tank 11, has improved whole wave filter 100's anti-vibration, shock resistance, has improved operational reliability.

In the above embodiment, the terminal insert and the insulating plate 2 are integrally injection molded, and the terminal insert and the insulating plate 2 can be combined in advance when in use, so that the whole filter 100 can be assembled conveniently, and the insulating plate 2 can be made of any insulating material, and the shape and the size of the insulating plate can be set according to actual needs; the insulating plate 2 is provided with a plurality of through holes 21 through which the respective leads of the electronic components of the filter module 4 are inserted. Preferably, the insulating plate 2 in this embodiment is provided with a partition 22, and the partition 22 is located between the terminal insertion piece and the filter assembly 4, and plays a role in isolating and insulating electronic components in the terminal insertion piece and the filter assembly 4. In this embodiment, the number of the terminal insertion pieces connected to the insulating plate 2 is plural, the angle is any angle, the first end 34 of the terminal insertion piece is used for being connected with the filter component 4, and the second end 35 is used for external wiring. It should be noted that the shape of the second end 35 of the terminal insert is determined by a user, the shape and the size of the first end 34 can be set according to actual needs, the hole shape of the insertion hole 6 can be any shape, the insertion hole only needs to be matched with each pin of the filter component 4, and the number and the size of the insertion holes 6 can be designed according to actual needs.

Referring to fig. 1, the terminal insert sheet includes an input terminal insert sheet 31, an output terminal insert sheet 32 and a ground terminal insert sheet 33, the input terminal insert sheet 31 is used for receiving an input electrical signal, the output terminal insert sheet 32 is used for receiving an output electrical signal, the ground terminal insert sheet 33 performs electrical safety protection on the filter 100 when in use, and a filtering component 4 is connected between the input terminal insert sheet 31 and the output terminal insert sheet 32 to achieve the purpose of filtering. It should be noted that one or more input terminal insertion pieces 31 and one or more output terminal insertion pieces 32 are provided, and the specific number thereof may be set according to actual needs, such as different phases or voltages.

Preferably, in this embodiment, the second end 35 of the terminal insert piece is disposed perpendicular to the insulating plate 2. The terminal insert sheets preferably include two input terminal insert sheets 31, two output terminal insert sheets 32 and one ground terminal insert sheet 33. During the use, the second end 35 of two input terminal inserted sheets 31 inserts live wire and zero line respectively, and the second end 35 of ground wire terminal inserted sheet 33 inserts the ground wire, and the second end 35 of output terminal inserted sheet 32 connects the output lead.

Further, referring to fig. 2, the filter assembly 4 includes a capacitor, and further includes an inductor or a resistor or a combination thereof. In this embodiment, the filter assembly 4 preferably includes a common mode inductor 41, capacitors C1, C2, C3, and C4, and resistors R1 and R2. The common mode inductor 41 is arranged between the input terminal insertion sheet 31 and the output terminal insertion sheet 32 and is electrically connected to the two input terminal insertion sheets 31 and the two output terminal insertion sheets 32; after the resistor R1 and the capacitor C1 are connected in parallel, pins at two ends of the resistor R1 and the capacitor C1 are respectively inserted into and electrically connected with the insertion holes 6 of the two input terminal insertion sheets 31, two ends of the capacitor C2 and the resistor R2 are respectively inserted into and electrically connected with the insertion holes 6 of the two output terminal insertion sheets 32, and after the capacitors C3 and C4 are connected in series, pins at two ends of the capacitor C3 and the capacitor C3538 are inserted into and electrically connected with the insertion holes 6 of the two output terminal insertion sheets 32.

More specifically, the common mode inductor 41 includes a magnetic core 411 and a first coil 412 and a second coil 413 wound around the magnetic core 411, two ends of the first coil 412 are respectively inserted into the insertion hole 6 to electrically connect with one input terminal insertion piece 31 and one output terminal insertion piece 32, and two ends of the second coil 413 are respectively inserted into the insertion hole 6 to electrically connect with the other input terminal insertion piece 31 and the other output terminal insertion piece 32. In this embodiment, the capacitor C1 is connected in parallel with the resistor R1, the capacitors C3 and C4 are connected in parallel with the capacitor C2 and the resistor R2, and RCL resonance is formed between each capacitor and the resistor and the common mode inductor 41. The capacitor C1 forms the front stage filter, and the capacitors C2, C3 and C4 form the rear stage filter, so that the whole structure has the filtering function, and the common mode inductor 41 can suppress the common mode current. In other embodiments, the filtering component 4 may have other configurations.

Referring to fig. 2, in the present embodiment, the insulating plate 2, the terminal insert and the filter assembly 4 are encapsulated in the accommodating groove 11 by the potting adhesive 5. It should be noted that the amount of the pouring sealant 5 is adjusted according to the selection of the actual situation and the specific requirement.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may apply the equivalent embodiments modified or modified by the above technical contents disclosed as equivalent variations to other fields, but any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims (9)

1. A filter, comprising:

the shell is hollow and is provided with an upper opening to form an accommodating groove;

the insulating plate is arranged in the accommodating groove;

the first end of the terminal insertion piece penetrates through the insulating plate and extends to the bottom of the accommodating groove, a plurality of pre-punched insertion holes are formed in the first end, and the second end of the terminal insertion piece extends to the outside of the accommodating groove to be connected with an element to be connected;

the filtering component is arranged on the insulating plate, and pins of the filtering component penetrate through the insulating plate and are inserted into the corresponding inserting holes;

and the pouring sealant is used for encapsulating the insulation plate, the terminal inserting sheet and the filtering component in the accommodating groove.

2. The filter of claim 1, wherein the filtering component comprises a capacitor, and further comprises an inductor or a resistor or a combination thereof.

3. The filter of claim 1, wherein the terminal insert is injection molded integrally with the insulator plate.

4. The filter of claim 1, wherein a spacer is disposed on the insulating plate, the spacer being located between the terminal insert and the filter assembly.

5. The filter of claim 1, wherein the terminal insert sheets comprise an input terminal insert sheet and an output terminal insert sheet, the input terminal insert sheet is used for receiving input electric signals, the output terminal insert sheet is used for receiving output electric signals, and the filter assembly is connected between the input terminal insert sheet and the output terminal insert sheet.

6. The filter of claim 5, wherein the input terminal blades are provided with one or more and the output terminal blades are provided with one or more.

7. The filter of claim 5, wherein the terminal insert further comprises a ground terminal insert.

8. The filter of claim 1, wherein the pins of the filter assembly are soldered into the receptacles.

9. The filter of claim 1, wherein the housing is a cuboid.

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