CN217361867U

CN217361867U - Filter capable of fixing contact pin quickly and reliably

Info

Publication number: CN217361867U
Application number: CN202221026665.6U
Authority: CN
Inventors: 陆怡霖; 方良; 李濛; 邓思雨; 李邦瑞
Original assignee: Chengdu Hongming Electronics Co Ltd
Current assignee: Chengdu Hongming Electronics Co Ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-09-02
Anticipated expiration: 2032-04-28

Abstract

The utility model discloses a can fix wave filter of contact pin fast and reliably, which comprises an outer shell, the contact pin, the circuit board, first insulation limiting plate and the insulating limiting plate of second, be equipped with fixing hole and first contact pin through-hole on the first insulation limiting plate, be equipped with fixed screw and second contact pin through-hole on the insulating limiting plate of second, be equipped with spacing counter bore on the insulating limiting plate of second, be equipped with the contact pin bulge loop on the contact pin, a plurality of through-holes on the bottom plate of shell are passed in proper order to the upper end of a plurality of contact pins, behind a plurality of first contact pin through-holes and a plurality of second contact pin through-holes with a plurality of welding jogged joints on the circuit board, the contact pin bulge loop is arranged in corresponding spacing counter bore, a plurality of screws are connected with a plurality of fixed screw behind a plurality of through-holes and a plurality of fixing hole on the bottom plate of shell in proper order, the apron is connected with the open end of shell. The utility model has the advantages of the contact pin steadiness is high, the anti vibration ability is strong, the fast assembly of being convenient for, has overcome the problem that traditional glass powder sintering and epoxy encapsulation exist.

Description

Filter capable of fixing contact pin quickly and reliably

Technical Field

The utility model relates to a wave filter especially relates to a can be fast reliably fix wave filter of contact pin.

Background

The basic structure of the filter comprises a shell, a filter circuit and a contact pin, the traditional filter mainly adopts two fixing modes of sintering and fixing the contact pin by glass powder and embedding and fixing epoxy resin, the fixing of the traditional filter is stable, but the processing cycle is long, generally more than one month is needed, and the processing efficiency is low; the latter can complete the encapsulation quickly, but the pins are fixed by epoxy resin, and the stability is insufficient, which may cause damage to the filter when used in a strong vibration environment.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a filter capable of fixing a pin quickly and reliably in order to solve the above-mentioned problems.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the utility model provides a can quick reliable wave filter of fixed contact pin, includes shell, contact pin and circuit board, still includes first insulation limiting plate and second insulation limiting plate, be equipped with a plurality of fixing hole that are used for the screw to pass and a plurality of being used for on the first insulation limiting plate the first contact pin through-hole that the contact pin passed, be equipped with on the second insulation limiting plate a plurality of be used for with fixed screw and a plurality of being used for of screw connection the second contact pin through-hole that the contact pin passed, one side of second insulation limiting plate is located on the surface the position of second contact pin through-hole periphery is equipped with spacing counter bore, be equipped with the contact pin bulge loop of evagination on the middle section outer wall of contact pin, the shell only has one end opening and establishes this open end as the upper end, be equipped with a plurality of through-holes on the bottom plate of shell, it is vertical a plurality of the lower extreme of contact pin is located outside the shell, it is a plurality of the upper end of contact pin passes from bottom to top in proper order a plurality of through-hole that correspond on the bottom plate of shell, It is a plurality of first contact pin through-hole and a plurality of behind the second contact pin through-hole with a plurality of welding jogged joint that correspond on the circuit board, the contact pin bulge loop is arranged in and is corresponded in the spacing counter sink and simultaneously with the upper surface contact of first insulation limiting plate, it is a plurality of the screw passes from bottom to top in proper order a plurality of through-holes and a plurality of that correspond on the bottom plate of shell behind the fixed through-hole with a plurality of that correspond the fixed screw is connected, the apron with the open end of shell is connected.

Preferably, in order to position the circuit board conveniently, an annular step is arranged at a position, corresponding to the circuit board, on the contact pin, and the outer diameter of the contact pin above the annular step is smaller than that below the annular step.

Preferably, in order to improve the penetration effect and improve the welding stability when welding the contact pin and the circuit board, a vertical drainage groove is formed in the outer wall of the contact pin and located below the annular step, and the height of the drainage groove is larger than the thickness of the circuit board.

According to actual need, the circuit board includes first circuit board and second circuit board, annular step includes first annular step and second annular step, the drainage groove includes first drainage groove and second drainage groove, first circuit board with the second circuit board is located respectively on the first annular step with on the second annular step, first drainage groove with the second drainage groove is located respectively the below of first annular step with the below of second annular step.

Preferably, in order to enable a certain gap to be formed between the first insulation limiting plate and the bottom plate of the housing, so as to improve the connection stability, a plurality of supporting columns protruding downwards are arranged below the first insulation limiting plate and at positions corresponding to the plurality of first pin through holes, and the first pin through holes penetrate through the corresponding supporting columns.

Preferably, in order to prevent the nuts of the screws from being exposed out of the bottom surface of the housing, the through holes of the bottom plate of the housing corresponding to the screws are flared holes, the nuts of the screws are placed in the flared holes, and the nuts of the screws are flush with the outer surface of the bottom plate of the housing.

According to actual needs, the number of the contact pins is four, the number of the first insulation limiting plates and the number of the second insulation limiting plates are two, each first insulation limiting plate is provided with two fixing through holes and two first contact pin through holes, and each second insulation limiting plate is provided with two fixing screw holes and two second contact pin through holes.

The beneficial effects of the utility model reside in that:

the utility model discloses an insulating limiting plate of first insulating limiting plate and second carries out axial and radial positioning to the contact pin, fix first insulating limiting plate and the insulating limiting plate of second on the bottom plate of shell through the screw to the realization is to the high steadiness mechanical fixation of contact pin, and it is high to have the contact pin steadiness, the anti vibration ability is strong, the fast assembly's of being convenient for advantage, has both overcome the fixed problem of the processing cycle length that exists of traditional glass powder sintering, has overcome the not enough problem of steadiness that traditional epoxy encapsulation exists again.

Drawings

Fig. 1 is a perspective view of the filter capable of fixing the contact pin quickly and reliably according to the present invention before assembly;

fig. 2 is a perspective view of a first insulating limiting plate of the filter capable of fixing the contact pin quickly and reliably according to the present invention;

fig. 3 is a perspective view of a second insulation limiting plate of the filter capable of fixing the contact pin quickly and reliably according to the present invention;

fig. 4 is a perspective view of a pin of the filter capable of fixing the pin quickly and reliably according to the present invention;

fig. 5 is a front view of the assembled filter capable of fixing the contact pin quickly and reliably according to the present invention;

fig. 6 is a bottom view of the assembled filter capable of fixing the contact pin quickly and reliably.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1-6, the filter capable of fixing pins quickly and reliably according to the present invention includes a housing 7, pins 3, a circuit board, a first insulation limiting plate 6 and a second insulation limiting plate 5, the first insulation limiting plate 6 is provided with a plurality of fixing through holes 61 for screws 8 to pass through and a plurality of first pin through holes 63 for pins 3 to pass through, the second insulation limiting plate 5 is provided with a plurality of fixing screw holes 51 for connecting with screws 8 and a plurality of second pin through holes 52 for pins 3 to pass through, a position on one side surface of the second insulation limiting plate 5 at the periphery of the second pin through holes 52 is provided with a limiting counter bore 53, a convex pin convex ring 35 is provided on the outer wall of the middle section of the pins 3, the housing 7 has only one end open and the open end is provided as the upper end, a plurality of through holes (not marked in the figure) are provided on the bottom plate of the housing 7, the lower ends of the plurality of the vertical pins 3 are located outside the housing 7, the upper end of a plurality of contact pins 3 from bottom to top pass in proper order on the bottom plate of shell 7 correspond behind a plurality of through-holes, a plurality of first contact pin through-holes 63 and a plurality of second contact pin through-holes 52 with a plurality of welding jogged joint that correspond on the circuit board, contact pin bulge loop 35 arrange in corresponding spacing counter bore 53 in and simultaneously with the last surface contact of first insulation limiting plate 6, a plurality of screws 8 pass in proper order from bottom to top on the bottom plate of shell 7 correspond behind a plurality of through-holes and a plurality of fixed through-holes 61 be connected with a plurality of fixed screw 51 that correspond, apron 1 and shell 7's open end flush seal welded joint.

Preferably, an annular step is arranged at a position, corresponding to the circuit board, on the contact pin 3, and the outer diameter of the contact pin above the annular step is smaller than that below the annular step; a vertical drainage groove is formed in the outer wall of the contact pin 3 and is positioned below the annular step, and the height of the drainage groove is larger than the thickness of the circuit board; the circuit boards comprise a first circuit board 2 and a second circuit board 4, the annular steps comprise a first annular step 31 and a second annular step 33, the drainage grooves comprise a first drainage groove 32 and a second drainage groove 34, the first circuit board 2 and the second circuit board 4 are respectively positioned on the first annular step 31 and the second annular step 33, and the first drainage groove 32 and the second drainage groove 34 are respectively positioned below the first annular step 31 and the second annular step 33; a plurality of supporting columns 62 protruding downwards are arranged below the first insulating limiting plate 6 at positions corresponding to the plurality of first pin through holes 63, and the first pin through holes 63 penetrate through the corresponding supporting columns 62; a plurality of through holes corresponding to the plurality of screws 8 on the bottom plate of the shell 7 are flared holes, nuts of the screws 8 are arranged in the flared holes, and the nuts of the screws 8 are flush with the outer surface of the bottom plate of the shell 7; the number of the contact pins 3 is four, the first insulation limiting plate 6 and the second insulation limiting plate 5 are two, each first insulation limiting plate 6 is provided with two fixing through holes 61 and two first contact pin through holes 63, and each second insulation limiting plate 5 is provided with two fixing screw holes 51 and two second contact pin through holes 52.

As shown in fig. 1-6, during assembly, the four pins 3, the first insulation limiting plate 6 and the second insulation limiting plate 5 are assembled, the four pins 3 penetrate through the bottom plate of the housing 7 from inside to outside, the first insulation limiting plate 6 and the second insulation limiting plate 5 are fixed on the bottom plate of the housing 7 by using four screws 8, the second circuit board 4 is mounted on the second annular step 33 of the four pins 3 from top to bottom, the second circuit board 4 is welded with the four pins 3, the first circuit board 2 is mounted on the first annular step 31 of the four pins 3 from top to bottom, the first circuit board 2 is welded with the four pins 3, and the cover plate 1 is welded at the opening end of the housing 7, so that the assembly of the whole filter is completed.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.

Claims

1. The utility model provides a can fix filter of contact pin fast and reliably, includes shell, contact pin and circuit board, its characterized in that: still include first insulation limiting plate and second insulation limiting plate, be equipped with a plurality of fixed through hole and a plurality of being used for that the screw passes on the first insulation limiting plate the first contact pin through-hole that the contact pin passed, be equipped with on the second insulation limiting plate a plurality of be used for with screw connection's fixed screw and a plurality of being used for the second contact pin through-hole that the contact pin passed, one side of second insulation limiting plate is located on the surface the position of second contact pin through-hole periphery is equipped with spacing counter bore, be equipped with the contact pin bulge loop of evagination on the middle section outer wall of contact pin, the shell only one end opening just establishes this open end and is the upper end, be equipped with a plurality of through-holes on the bottom plate of shell, it is vertical a plurality of the lower extreme of contact pin is located outside the shell, it is a plurality of the upper end of contact pin passes from bottom to top in proper order correspond on the bottom plate of shell a plurality of through-hole, a plurality of first contact pin through-hole and a plurality of behind the second contact pin through-hole with the circuit board many contact pins that correspond A plurality of welding jogged joint, the contact pin bulge loop is arranged in and is corresponded in the spacing counter bore and simultaneously with the upper surface contact of first insulation limiting plate, it is a plurality of the screw passes from bottom to top in proper order a plurality of through-holes and a plurality of that correspond on the bottom plate of shell behind the fixed through-hole with a plurality of that correspond fixed screw connects, the apron with the open end of shell is connected.

2. The filter capable of fixing pins according to claim 1, wherein: and the position of the contact pin corresponding to the circuit board is provided with an annular step, and the outer diameter of the contact pin above the annular step is smaller than that below the annular step.

3. The filter capable of fixing pins according to claim 2, wherein: and the outer wall of the contact pin is provided with a vertical drainage groove at a position below the annular step, and the height of the drainage groove is greater than the thickness of the circuit board.

4. The filter capable of fixing pins according to claim 3, wherein: the circuit board includes first circuit board and second circuit board, annular step includes first annular step and second annular step, the drainage groove includes first drainage groove and second drainage groove, first circuit board with the second circuit board is located respectively on the first annular step with on the second annular step, first drainage groove with the second drainage groove is located respectively the below of first annular step with the below of second annular step.

5. The filter capable of fixing pins according to claim 1, wherein: the position below the first insulation limiting plate that corresponds with a plurality of first contact pin through-hole is equipped with a plurality of support columns of downward arch, first contact pin through-hole link up the correspondence the support column.

6. The filter capable of fixing pins according to claim 1, wherein: the bottom plate of the shell is provided with a plurality of through holes corresponding to the plurality of screws, the through holes are flared holes, nuts of the screws are arranged in the flared holes, and the nuts of the screws are flush with the outer surface of the bottom plate of the shell.

7. A filter capable of quickly and reliably fixing pins according to any one of claims 1 to 5, characterized in that: the contact pin is four, first insulation limiting plate with the second insulation limiting plate is two, every be equipped with two on the first insulation limiting plate fixed through hole and two first contact pin through-hole, every be equipped with two on the second insulation limiting plate fixed screw and two the second contact pin through-hole.