CN201072848Y

CN201072848Y - Socket type power filter

Info

Publication number: CN201072848Y
Application number: CNU2007201038745U
Authority: CN
Inventors: 吴晓宁
Original assignee: BEIJING JONES Co Ltd
Current assignee: Beijing Jones Co., Ltd.
Priority date: 2007-03-19
Filing date: 2007-03-19
Publication date: 2008-06-11
Anticipated expiration: 2017-03-19

Abstract

The utility model relates to a plug type power filter, which belongs to the power filter being able to eliminate electromagnetic interference. The utility model comprises a shell, a standard port plug (1), input terminals (4), input ground terminals (3), an inner element being composed of wire to wire capacitance (11), a ground capacitance (12), an inductance (13) and a resistance (14) welded on a printed circuit board (10), right output terminals (6) and left output terminals (7). The input terminals and output terminals are connected with the inner element via the printed circuit board (10). The shell is composed of a plastic shell body (8) and a plastic shell cover (9) by clamping. A counterpoise grounding (2) separately connected with a baseplate on user side and the ground terminal of the power filter is provided. The utility model can be produced in large scale, thereby improving the reliability of the plug type power filter with high production efficiency and lowering the cost.

Description

The female type power-supply filter

Technical field

The utility model relates to a kind of female type power-supply filter, belongs to a kind of power-supply filter that can get rid of electromagnetic interference.

Background technology

The female type power-supply filter is widely used on the general electric equipment device, is used for filtering unsettled mains supply, makes device systems can obtain a stable voltage source, has avoided protruding ripple signal that electric equipment is caused damage.

Female type power-supply filter product on the market mainly comprises housing, inner member and input, lead-out terminal at present.Being in great demand of present this product, but that ubiquitous defective is a production efficiency is very low, manufacturing process is complicated, poor reliability.This is because being connected between the binding post of the element of filter inside and input and output terminal and the inner member all is the mode of employing manual welding, the socket filter element is wound on one by one on the binding post of input/output terminal and welds, operating procedure is loaded down with trivial details, rely on manual welding operator's quality and level fully, and is unfavorable for the suitability for industrialized production of product.In addition, the female type power-supply filter adopts metal shell usually, adopt insulating material to carry out the above insulation processing of 2000VAC between metal shell and the inner member, the manufacturing process complexity, in the enclosure under the situation that the installing space of portion's element is very little, reliability is relatively poor relatively, and the antirust quality of the metal shell insoluble problem of processing enterprise often.

Summary of the invention

The purpose of this utility model is to provide a kind of can carry out large-scale production, reliability and production efficiency height, the female type power-supply filter that cost is low.

In order to achieve the above object, the technical solution adopted in the utility model is:

Female type power-supply filter of the present utility model, the inner member that is arranged on enclosure, right side lead-out terminal, the left side lead-out terminal that comprise shell, standard mouth plug, input terminal, input grounding terminal, form by line capacitance, ground capacity, inductance, resistance; Wherein, inner member is welded in the printed board, and input terminal, left and right side lead-out terminal are connected with inner member by printed board.

The shell of female type power-supply filter of the present utility model is fastened by the plastics cap at the plastic casing of bottom and top to be formed.The top and the bottom of standard mouth plug are respectively equipped with projection, clamp and are connected with plastic casing, plastics cap respectively.

Between cap and standard mouth plug, be provided with the space, the space is embedded with the earth strip of drawing from enclosure, earth strip is provided with the lug that is connected with the user side substrate with being used for of matching of the lug of standard mouth plug, and its end that is positioned at housing is connected with the input grounding terminal.

Enclosure interior also is provided with the ground support, and the one end is connected with earth terminal, and middle-end is connected with printed board, and the other end reaches housing and serves as the output earth terminal outward.

Because internal structure of the present utility model adopts the modularized design of printed board, make the manufacturing process of the full manual welding of original filter, become the production technology that can use the wave-soldering unit welding, be convenient to large-scale production and processing, production efficiency and product reliability improve greatly.The ground connection copper strips that adopts is convenient to the reliability ground connection of filter on client's product substrate and is installed.Adopt the all-plastic shell mechanism, simple in structure, saved insulating material and treatment process between filter inner member and the shell, reduced material cost, improved reliability of products.

Description of drawings

Fig. 1 general shape figure of the present utility model.

Fig. 2 exploded view of the present utility model.

Fig. 3 parts explosion of the present utility model.

Fig. 4 printed board assembly exploded view of the present utility model.

Fig. 5 overall internal anatomy of the present utility model.

Among the figure, 1, standard mouth plug, 2, earth strip, 3, input grounding terminal, 4, input terminal, 5, support, 6, right side lead-out terminal, 7, the left side lead-out terminal, 8, housing, 9, cap, 10, printed board, 11, line capacitance, 12, ground capacity, 13, inductance, 14, resistance, I, jack assemblies, II, a printing version assembly.

Embodiment

Describe preferred embodiment of the present utility model in detail below in conjunction with accompanying drawing.

Female type power-supply filter of the present utility model is made of jack assemblies I, a printing version assembly II, cap 9 three parts, referring to Fig. 2.

Jack assemblies I by standard mouth plug 1, earth strip 2, two input terminals 4, right side lead-out terminal 6, left side lead-out terminal 7, input grounding terminal 3, support 5, plastic casing 8 constitute.Plastic casing 8 is made of the plastic plate of bottom and the baffle plate of output.Standard mouth plug 1 snaps together with plastic casing 8, ground support 5 is positioned at plastic casing 8, the end of input grounding terminal 3 in housing is inserted in the hole of ground support 5 one ends, the other end of ground support 5 serves as the output earth terminal, reach outside the housing by the hole on the plastic casing 8, the middle part of ground support 5 also is provided with an exit that is connected with printed board 10.Two input terminals 4 stretch out by the hole on the standard mouth plug 1, and two lead-out terminals stretch out outside the plastic casing 8, referring to Fig. 2, Fig. 3.

Print version assembly II and form, referring to Fig. 2 by inner member and printed board 10.Inner member is made up of a line capacitance 11, two ground capacities 12, inductance 13, a resistance 14, referring to Fig. 4.Be equipped with respectively in the printed board 10 and the corresponding aperture of inner member pin, inner member can be welded on above the printed board 10 by wave-soldering unit, forms to print version assembly II.

Printing version assembly II places in the interior space of jack assemblies I.The end that two input terminals 4 are positioned at housing is the boss of cuboid, in the square hole of inlay card in printed board 10; The end that two lead-out terminals 6 are positioned at housing is plugged on the hole in the printed board 10; The exit at middle part of ground support 5 also is plugged in the hole in the printed board 10, has realized being connected of input/output terminal and earth terminal and inner member, referring to Fig. 3.

Leave one section space between plastics cap 9 and the standard mouth plug 1 earth strip 2 is set, earth strip 2 is provided with the lug that matches with the lug of standard mouth plug 1, be used for being connected on the substrate of user side, the position that earth strip 2 reaches in the shell is connected with input grounding terminal 3, perhaps the junction with input grounding terminal 3 and ground support 5 joins, be grounded, earth strip 2 can adopt copper strips.Plastics cap 9 is fastened with plastic casing 8, forms whole female type power-supply filter, and its overall internal anatomy is referring to Fig. 5, and general shape figure is referring to Fig. 1.

Claims

1. female type power-supply filter, comprise shell, standard mouth plug (1), input terminal (4), input grounding terminal (3), be arranged on the line capacitance (11) of enclosure, ground capacity (12), inductance (13) and resistance (14), right side lead-out terminal (6), left side lead-out terminal (7), it is characterized in that: the described line capacitance (11) that is arranged on enclosure, ground capacity (12), inductance (13) and resistance (14) are welded in the printed board (10), input terminal (4), right side lead-out terminal (6), left side lead-out terminal (7) is by printed board (10) and the line capacitance (11) that is arranged on enclosure, ground capacity (12), inductance (13) is connected with resistance (14).

2. female type power-supply filter according to claim 1, it is characterized in that: described shell is clamped by plastic casing (8) and plastics cap (9) to be formed, the top and the bottom of standard mouth plug (1) are respectively equipped with projection, clamp and are connected with plastic casing (8), plastics cap (9) respectively.

3. female type power-supply filter according to claim 2, it is characterized in that: between cap (9) and standard mouth plug (1), be provided with the space, the space is embedded with the earth strip (2) of drawing from enclosure, earth strip (2) is provided with the lug that is connected with the user side substrate with being used for of matching of the lug of standard mouth plug (1), and its end that is positioned at housing is connected with input grounding terminal (3).

4. female type power-supply filter according to claim 3, it is characterized in that: housing (8) inside also is provided with ground support (5), the one end is connected with input grounding terminal (3), and middle-end is connected with printed board (10), and the other end reaches the outer output earth terminal that serves as of housing (8).