CN2618411Y

CN2618411Y - Grounded elastic sheet

Info

Publication number: CN2618411Y
Application number: CN 03203483
Authority: CN
Inventors: 廖正义
Original assignee: JIAYING PRECISION ENTERPRISE CO Ltd
Current assignee: JIAYING PRECISION ENTERPRISE CO Ltd
Priority date: 2003-03-26
Filing date: 2003-03-26
Publication date: 2004-05-26
Anticipated expiration: 2013-03-26

Abstract

The utility model relates to a grounding elastic platy, which can improve the elastic platy grounding in the circuit resistance for a print circuit board, wherein, the elastic platy is a single platy part made from a whole body bending and forming, the structure is divided into a fixed bottom, an elastic section connected with the fixed bottom, a pressing top section connected with the elastic section and opposite in the same direction to the fixed bottom, a catching section extended from the pressing top section and the fixed bottom and having the mutually retaining buckles and inlaying structure and a stop section. Due to that the catching section and stop section is used as a guide for the pressing top section moving direction and the appropriate and efficient stop function, the utility model effectively prevents the deformation and keeps validly grounding.

Description

A kind of grounding elastic part

Technical field

The utility model relates to a kind of grounding elastic part, refers to a kind of grounding elastic part that improves in the impedance of printed circuit board (PCB) earth-return especially, and this shell fragment has guiding, restriction, to avoid producing deformation because of improper action makes grounding elastic part.

Background technology

In today that twenty Pius XI is recorded, the digital and electronic commodity are combined closely with our life, and for example, computer, communication product or video and audio product etc. have the status of not replacing in our life.And these products constantly promote its operating frequency for promoting quality and function, but the also serious threat flight safety of the electromagnetic pollution that high frequency produced, communication or household's safety.

And from the viewpoint of electronics, electromagnetic wave also can be regarded the noise of generation as, noise can see through ground connection (grounding), screen is kept away (shielding) and dropped to minimum with filtering (filtering) and will eliminate, so eliminating the most original notion of electromagnetic wave is exactly ground connection, as long as all is right does for ground connection, the design of event HF link today, must be in the mode of multipoint earthing, to reduce the earth-return impedance of signal flow, so, can reduce the noise jamming source of being caused, with performance and the reduction electromagnetic radiation that improves circuit design because of the earth-return impedance.

For example; the method of improving the impedance of printed circuit board (PCB) earth-return now is to use grounding elastic part more; strengthen being connected of printed circuit board (PCB) earth-return and casing ground by this grounding elastic part; to reduce the earth-return impedance; form by the simple bending of a metal lamellar body but grounding elastic part now is many; see also shown in Figure 5; because of it generally is the state of " z "; after it was equipped on the printed circuit board (PCB), printed circuit board (PCB) was when assembly is in metal shell again, if the mounting direction mistake of its assembler; or application of force direction is improper; this grounding elastic part hypomere regular meeting causes " overhead kick " effect, and grounding elastic part is badly deformed, and should form the contact-making surface of tight butt originally with metal shell; just can't effectively conflict with metal shell; its conductivity function also just reduces relatively, promptly the situation of imperfect earth can take place, and lose its effect fully.

Summary of the invention

Main purpose of the present utility model, be to provide a kind of grounding elastic part, the structure of this shell fragment has the fastening part and the limiting section of buckle mutually, with as the guiding of touching top start direction, and suitable restriction effectively, prevent that this grounding elastic part from producing deformation and the purpose that can remain valid ground connection and reach.

Description of drawings

Fig. 1 is a stereoscopic schematic diagram of the present utility model.

Fig. 2-1 is a front-view schematic diagram of the present utility model.

Fig. 2-2 is a schematic side view of the present utility model.

Fig. 2-3 is a schematic top plan view of the present utility model.

Fig. 3 is a user mode schematic diagram of the present utility model.

Fig. 4 is another embodiment schematic diagram of the present utility model.

Fig. 5 is the grounding elastic part schematic diagram of prior art.

Symbol description among the figure

1 solid bottom

11,12 reinforcement fins

2 elastic portion

3 touch the top

4 fastening parts

41 collude body

5 limiting sections

51 conduits

52 exterior faces

Embodiment

Below be relevant detailed description of the present utility model and technology contents, now be explained with regard to conjunction with figs.:

See also Fig. 1 and Fig. 2-1, Fig. 2-2, shown in Fig. 2-3, be the utility model stereoscopic and forward sight of the present utility model, side-looking, schematic top plan view, as shown in the figure: the utility model is by the member of the metal material institute one bending forming of single lamellar body, this metal material is adopted as beryllium copper, phosphor bronze, stainless steel etc., and can divide in regular turn according to its effect purpose on this member: a solid bottom 1, one in succession in the elastic portion 2 of solid bottom 1, one in succession in elastic portion 2 and relative in the same way with solid bottom 1 top 3 of touching, and touch on top 3 and the solid bottom 1 in this, be formed with the fastening part 4 and the limiting section 5 of buckle mutually, wherein, this fastening part 4 extends bending from the end of touching top 3 and forms, limiting section 5 then extends upwards by the both sides of solid bottom 1, and bending forms, and (not shown) also can be exchanged because of actual demand in the formation position of this fastening part 4 and limiting section 5, in addition, has an embedded structure (being detailed later) each other again in this fastening part 4 and limiting section 5, use preventing the two, break away from default activated position and cause because of improper external force.

Wherein, above-mentioned solid bottom 1 is used for combining with the printed circuit board (PCB) (not shown) fixing, so two sides of this solid bottom 1 are formed with

reinforcement fin

11,12 again, use increase adhesion material consolidate area, with the effect of strengthening fixing; Above-mentioned elastic portion 2, compression stroke in the time of can providing the utility model compressed by external force and quantitative elastic restoring force, touch top 3 when connecting at this with the metal shell (not shown), this touches top 3 just by the elastic restoring force of this elastic portion 2, and be able to and the tight butt of metal shell, to obtain effective ground connection effect; In addition, above-mentioned limiting section 5, be formed with conduit 51 on it again, and the leading section of this fastening part 4 is arranged in the conduit 51, and can free slippage in conduit 51, in addition, above-mentioned embedded structure is, be formed with in the leading section of this fastening part 4 and collude body 41, and this end of colluding body 41 then is piercing in outside the conduit 51, and the sliding exterior face 52 that is butted on limiting section 5 colludes body 41 by this to deduct in exterior face 52, to reach the purpose of chimeric qualification, and prevent that fastening part 4 and limiting section 5 from leaving default position, in addition, conduit 51 on this limiting section 5 and fastening part 4 collude body 41, also can be formed the position (not shown) and exchange it mutually because of actual demand.

See also shown in Figure 3, be user mode schematic diagram of the present utility model, as shown in the figure: after grounding elastic part is equipped on printed circuit board (PCB), (above state is all prior art when the printed circuit board (PCB) group is gone into metal shell, so it is no not shown), this touches top 3 can be subjected to pressing of metal shell, and make the utility model form by compression a state, and then the elastic restoring force that is provided by elastic portion 2, allow touch top 3 can with the tight butt of metal shell, so that touch the contact portion driving fit more of top 3 and metal shell, and increase its conduction (leading to) property, effectively the earth-return noise source on the printed circuit board (PCB) being conducted on the metal shell, and reach the purpose that reduces electromagnetic radiation.At this moment, extend from touching fastening part 4 and the limiting section 5 of top 3 with solid bottom 1, when touching top 3 when being subjected to the downward backfin of external force, the leading section of this fastening part 4 is slippage on the conduit 51 of limiting section 5 simultaneously just, the guiding of the leading section by conduit 51 and fastening part 4, more can keep touching the directivity of top 3 downward backfins, in addition, because the leading section of fastening part 4 is the design of colluding body 41, and this colludes the exterior face 52 that body 41 end cunnings are butted on limiting section 5, can prevent that the leading section of fastening part 4 from deviating from conduit 51.

In addition, if take place under the situation of improper operation, external force improperly, occur in when reverse, just may produce the situation of overhead kick, owing to adopt this to collude the design of body 41 and conduit 51 in the utility model, when touching top 3 stressed interlocks and pull fastening part 4, when the colluding body 41 and slide onto the end of conduit 51 of fastening part 4, just can be restricted, and slippage again, therefore just have a protective of certain degree, also can prevent that the utility model from producing deformation, more can avoid touching other electronic building brick, and the situation that is short-circuited.

See also shown in Figure 4, be another embodiment schematic diagram of the present utility model, this fastening part 4 and limiting section 5 in this embodiment, extending relatively by the both sides of touching top 3 and solid bottom 1, bending forms, and the body 41 that colludes of these fastening part 4 leading sections more forms the T shape, it is except the effect that can strengthen preventing fastening part 4 and deviate from conduit 51, because conduit 51 and T shape are colluded body 41 two ends and are abutted against on the outside of limiting section 5, the effect that can have guiding, touch the directivity of top 3 downward backfins to be maintained, can avoid producing the situation of backfin of taking back or take over.

The above only is preferred embodiment of the present utility model, and when can not be in order to limit the scope that the utility model is implemented, all equalizations of being done according to the utility model claim change and modify, and all should still belong to the scope that the utility model patent contains.

Claims

1. grounding elastic part, solid memder for the one bending forming, its structure can be divided into a solid bottom, one in succession in the elastic portion of solid bottom, one in succession in elastic portion and relative in the same way with the solid bottom top of touching, this touches the top and solid bottom extends to form the fastening part and the limiting section that can limit mutually separately, it is characterized in that: this fastening part extends bending by the end of touching the top and forms, limiting section then extends upwards by the both sides of solid bottom that bending forms, and this fastening part and limiting section have embedded structure each other again.

2. a kind of grounding elastic part as claimed in claim 1 is characterized in that, this fastening part extends relative bending with limiting section by the both sides of touching top and solid bottom and forms, and the formation position of this fastening part and limiting section also can be exchanged because of actual demand.

3. a kind of grounding elastic part as claimed in claim 2 is characterized in that, have a conduit on this limiting section, and the leading section of this fastening part extends through in conduit, and can slippage on conduit.

4. a kind of grounding elastic part as claimed in claim 3, it is characterized in that, embedded structure between this fastening part and limiting section is: form one in the leading section of fastening part and collude body, and be piercing in outside the conduit, and can slide the exterior face that is butted on limiting section, conduit on this limiting section and fastening part collude body, also can be formed the position and exchange it mutually because of actual demand.

5. a kind of grounding elastic part as claimed in claim 4 is characterized in that, this colludes body is a T shape.

6. a kind of grounding elastic part as claimed in claim 1 is characterized in that the both sides of this solid bottom all are formed with the reinforcement fin.

7. a kind of grounding elastic part as claimed in claim 1 is characterized in that this grounding elastic part is made of metal material, and this metal material is beryllium copper, phosphor bronze or stainless steel.