CN2453613Y

CN2453613Y - Casing of filter

Info

Publication number: CN2453613Y
Application number: CN 00253967
Authority: CN
Inventors: 林家和
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-09-27
Filing date: 2000-09-27
Publication date: 2001-10-10
Anticipated expiration: 2010-09-27

Abstract

The utility model discloses a filter casing. An input terminal and an output terminal are arranged on both sides of the filter casing, and a grounding terminal is arranged on the side of the output terminal. A Y capacitor, an inductance coil and a resistor are arranged in the filter casing. The filter casing comprises a box body which is opened upwards and a cover body, embedding grooves are arranged on box edges on the top parts of two opposite side walls of the box body, and clamping parts are convexly arranged on the upper parts of other two side walls. Lugs are arranged on the cover body relative to the both sides of the embedding grooves, both sides of the cover body are respectively bent downwards into wing sheets, and two embedding holes are arranged on the wing sheets. The cover body can be easily covered on the box body through the embedding holes. The lugs are embedded in the embedding grooves, and the clamping parts are buckled in the embedding holes to fix the cover body. The manufacture and assembly are convenient.

Description

The filter housing

The utility model is relevant for a kind of filter housing, refers to that especially a kind of making is easy to assembly, simple and fast, can significantly reduce cost and the filter housing of fraction defective.

At present, general filter commonly used, as Fig. 1, shown in 2, its structure is mainly and is respectively equipped with two input terminals 10 and two lead-out terminals 11 in the both sides of a housing 1, and be equipped with an earth terminal 12 in lead-out terminal 11 sides, in housing 1, be provided with two Y electric capacity 20, one inductance coil 21 and two electronic building bricks 2 such as resistance 22 are for connecting input terminal 10, lead-out terminal 11 and earth terminal 12, and should be fixed in the housing 1 by some electronic building bricks 2 with fixing glue 23, with firm electronic building brick 2, make 1 of electronic building brick 2 and housing form an insulating barrier with insulation effect, this housing 1 is made up of box body 13 and a lid 14 in the form of sheets of a upward opening, wherein convex with two lugs 15 on the box edge of these box body 13 both sides, and be provided with perforation 16 in lug 15, can make screw with its screw lock in electrical appliance or other bearing, this lid 14 is arranged in the box body 13 and welds to establish at each electronic building brick 2 and is connected in input terminal 10, lead-out terminal 11, earth terminal 12 and complete fixing glue 23 after, again it is covered on box body 13 tops, and is located on the periphery seam of box body 13 fixing with scolding tin 17 envelopes.

Yet structure such as above-mentioned Frequent Filters, though extensively apply in the industry, and being commonly people habitually practises, but because of the compound mode of the housing 1 of this Frequent Filters mainly is by in the form of sheets a lid 14 is covered on box body 13 tops, and then be located on the seam with scolding tin 17 envelopes, therefore the equipment that must possess welding when assembling can be realized, so it makes comparatively trouble and difficult of assembling, and because desire entirely is fixed in its lid 14 in the form of sheets on the box body 13, make it when welding, to be difficult for moving the then real very difficult thing that belongs to, so this lid 14 is usually to lopsidedness or be convexly set in the box edge outside out-of-flatness inadequately after its welding, makes it can't entirely be locked on electrical appliance or other bearing and returned goods.Establish when lid 14 usefulness scolding tin 17 envelopes and to add man-hour; The high temperature of scolding tin 17 also can be had influence on its internal electrical components 2 by the conduction of housing and make it impaired, moreover, when scolding tin 17 envelopes are established, be easy to its tin globule that forms high temperature be fallen within the box body 13 because of the control of scolding tin 17 amounts is difficult or improper, when it is attached to Y electric capacity 20 or resistance 22, high temperature just can damage its melting, in the time of on being attached to inductance coil 21, just can make variation inductance unstable and then influence the effect of filter, then more can produce the phenomenon of short circuit as investing when it in order to time in the wiring that connects input terminal 10 lead-out terminals 11 and electronic building brick 2, moreover, even when dripping between input terminal 10 or output stomidium 11 and box body 13, power supply and box body 13 just can form the situation of a conducting, the danger situation of electric shock easily takes place when human body touches this housing 1, and it has the not good shortcoming of fraction defective height and fail safe so hence one can see that.

Main purpose of the present utility model is to provide a kind of and makes easy to assembly, simple and can significantly reduce cost fast and the filter housing of fraction defective.

The purpose of this utility model is achieved in that a kind of filter housing, be respectively equipped with two input terminals and two lead-out terminals in the housing both sides, be equipped with an earth terminal in the lead-out terminal side, be provided with some in the housing for connecting input, the electronic building brick of output and earth terminal, this housing comprises the box body and a lid of a upward opening, the top box emargination of box body two lateral walls is provided with caulking groove, the top, two side respectively convexes with two blocking parts in addition, lid is respectively established a lug with respect to the both sides of caulking groove, both sides are bent with fin respectively downwards in addition, are provided with two embedding holes in fin, and the lid gland is on box body, lug embeds in the caulking groove, and blocking part is snapped in the embedding hole.

Blocking part by box body outside to inside integrated punching form, and it is convexly set in the box body inboard, is that a top is the inclined-plane and the protuberance of below projection.

Electronic building brick comprises two Y electric capacity, an inductance coil and two resistance.

The utility model is owing to be respectively equipped with two input terminals and two lead-out terminals in the both sides of housing, and be equipped with an earth terminal in the lead-out terminal side, in housing, be provided with two Y electric capacity, one inductance coil and two resistance are for connecting input, output and earth terminal, this housing comprises the box body and a lid of a upward opening, the top box emargination of box body two lateral walls is provided with caulking groove, its other two madial walls top appropriate location respectively convexes with two blocking parts, lid is then respectively established a lug with respect to the both sides of caulking groove, both sides are bent with fin respectively downwards in addition, and are provided with two embedding holes in fin.It can be easily with the lid gland on box body so that lug is embedded in the caulking groove, blocking part is snapped in the embedding hole and is fixed simultaneously, reaches to make easy to assembly, simple, quick and can significantly reduce cost and the effect of fraction defective.

Below in conjunction with concrete structure and the operation principle of accompanying drawing detailed description according to a kind of filter housing that the utility model proposes.

Fig. 1 is the three-dimensional exploded view of Frequent Filters.

Fig. 2 is the combination generalized section of Frequent Filters.

Fig. 3 is a three-dimensional exploded view of the present utility model.

Fig. 4 is a stereo appearance figure of the present utility model.

Fig. 5 is the A-A generalized section of the utility model Fig. 4.

Fig. 6 is the B-B generalized section of the utility model Fig. 4.

Please referring to shown in Fig. 3-6, be a kind of structural improvement of filter housing, its structure comprises that mainly a housing 3 and some electronic building bricks 4 members form, wherein:

Housing 3 is made up of a box body 33 and a lid 36, this box body 33 is a upward opening, be respectively equipped with two input terminals 30 and two lead-out terminals 31 in both sides wherein, lead-out terminal 31 sides are equipped with an earth terminal 12, the top appropriate location ecto-entad of this two side respectively stamps out two to projecting inward blocking part 35, these blocking part 35 tops are an inclined-plane and the shape of below protrusion, the top box emargination of two opposite side walls is provided with caulking groove 34 in addition, lid 36 is respectively established a lug 37 with respect to the both sides of caulking groove 34, lug 37 is provided with perforation 370 and can utilizes screw that it is locked on electrical appliance or bearing, be bent with fin 38 respectively downwards in relative dual-side, the position with respect to blocking part 35 on fin 38 is provided with two embedding holes 39;

Electronic building brick 4 is in housing 3, it mainly includes two Y electric capacity 40, an inductance coil 41 and two resistance 42 parts, should be fixed in the housing 3 by some electronic building bricks 4 with fixing glue 43,, make 3 of electronic building brick 4 and housings form an insulating barrier with insulation effect with firm electronic building brick 4.

Please cooperate and consult shown in Fig. 5,6, when lid 36 glands during in the top of box body 33, the lug 37 of lid 36 both sides just can embed the caulking groove 34 of box body 33, make lid 36 whole smooth sunken box body 36 opening parts that are encapsulated in, but and it is fixing in the embedding hole 39 of blocking part 35 buckles on fin 38 of box body 33 other both sides.

Because box body 33 of the present utility model is to utilize the mode of buckle with the combination of lid 36, so its need not be again equipment by other welding make its assembling comparatively simple, do not have the problems generation that the soldered ball drippage is produced, and the both sides of lid 36 are provided with fin 38, so when assembling, can be placed in the opening of box body 33 apace, and when lid 36 presses down, the following ora terminalis of its fin 38 can be made it be pressed into laborsaving and swimmingly by the ramp structure that blocking part 35 tops form, and also can embed in the embedding hole 39 after being pressed into and limit its unlikely coming off, reach convenient by the structure that blocking part 35 belows are convex, the purpose of laborsaving assembling; Moreover, when lid 36 is covered on the box body, can establish with the top of box body 33 madial walls by being embedded of lug 37 and caulking groove 34, fin 38 and lid 36, its smooth and firm envelope is located on the box body 33.

Claims

1, a kind of filter housing is respectively equipped with two input terminals and two lead-out terminals in the housing both sides, be equipped with an earth terminal in the lead-out terminal side, is provided with some electronic building bricks for connection input, output and earth terminal in the housing, it is characterized in that:

This housing comprises the box body and a lid of a upward opening, the top box emargination of box body two lateral walls is provided with caulking groove, the top, two side respectively convexes with two blocking parts in addition, lid is respectively established a lug with respect to the both sides of caulking groove, both sides are bent with fin respectively downwards in addition, are provided with two embedding holes in fin, and the lid gland is on box body, lug embeds in the caulking groove, and blocking part is snapped in the embedding hole.

2, filter housing as claimed in claim 1 is characterized in that: blocking part by box body outside to inside integrated punching form, and it is convexly set in the box body inboard, is that a top is the inclined-plane and the protuberance of below projection.

3, filter housing as claimed in claim 1 is characterized in that: electronic building brick comprises two Y electric capacity, an inductance coil and two resistance.