CN2129038Y - Resilient coupling pin for print circuit - Google Patents

Abstract

The utility model relates to a resilient coupling pin for print circuit. The middle part of the resilient coupling pin body is provided with a lower coupling pin which extends toward oblique left direction. The top end of the lower coupling pin is provided with an inward concave arc segment which extends toward lower right direction. An upper coupling pin which extends from the inward concave arc segment is composed of a horizontal stretched segment and a downward stretched segment. A notch which is used for inserting the circuit board is arranged between two coupling pins. The vertical downward stretched segment of the upper coupling pin is in a cantalever form. The whole resilient coupling pin is die-cut into a double-deck resilient entirety with two stretched and extended segments by a resilient plate. The symmetrical left and right top protruding fixed section on the resilient coupling pin body is inserted into symmetrical concave grooves on the lower part of a connecting socket body.

Description

Resilient coupling pin for print circuit

The utility model relates to a kind of connecting elements, particularly a kind of elastic card claw that is used for the circuit board Connection Block.

At present, the structure of the elastic card claw of employed circuit board Connection Block as depicted in figs. 1 and 2 in the computer, it is the corresponding setting of left elastic card claw of one by elastic card claw body 2 and with elastic card claw body 2, left and right sides elastic card claw epirelief height difference wherein, junior 2A generally is designed to single column, and the higher person 2B is generally the shape of curvature, as circuit daughter board B during by top or oblique insertion, rely on the elastic force of two claws that circuit daughter board B is fixed, to guarantee that elastic card claw 2A closely contacts with the contact site of circuit daughter board B with 2B, can keep channel status with the circuit that reaches between two circuit boards.

Because that designs on this road elastic card claw structure is not too reasonable, so also have the following disadvantages:

1. because the left side of above-mentioned elastic card claw commonly used, the elastic force of right elastic card claw 2A and 2B forms no any mutual association, therefore shaken by external force at circuit board or unit, or the operation process of above-mentioned elastic card claw in being inserted in jockey has artificial carelessness, when making elastic card claw that the not positive occasion of deflection be arranged in plugging groove, because its left side, the elastic force displacement of right elasticity claw stop has no connection and can't compensate mutually, therefore when suffering the external force collision vibrations, the of short duration escape that above-mentioned lower position elastic card claw contact point is often arranged, or at all when circuit board assembles, the contact point of its elastic card claw can't keep good the contact with the circuit of circuit board.The shortcoming of these of short duration escapes or loose contact is a ubiquitous problem in the similar design of all jockeys at present, has caused the program of defined effectively to control and to carry out.

2. when circuit daughter board insertion elastic card claw, and the application of force is urged to predetermined angle when location, the bounce-back elastic force for circuit daughter board of its left and right elastic card claw when the equilbrium position equates, therefore under identical elastic force condition, the elastic force displacement of the elastic card claw 2A of the lower position that single cylindrical component forms is less, even have only indivisible displacement, if meet the situation of stating the external force collision vibrations, the contact point of this elastic card claw and circuit board is easy to form of short duration escape phenomenon in this occasion.

The purpose of this utility model just is to overcome the above-mentioned shortcoming and defect of existing in prior technology, and a kind of elastic card claw that produces integral type circuit board Connection Block composite elastic, that engaging is solid and reliable is provided.

The purpose of this utility model is to realize by following technical scheme: oblique upper is extended with claw left at elastic card claw body middle part, the edge top point of claw down is extended with an indent segmental arc to the lower right, what extend mutually with the indent segmental arc is the upper clipping claw that is made of a level and test section, the breach that has power supply way plate to insert between two claws, the test vertical section of upper clipping claw is cantilever-shaped, promptly do not link to each other with the elastic card claw body, whole elastic card claw is die-cut and constitute the double-deck elasticity integral body with two spy sections of stretching by an elastic board chip, and the symmetrical epirelief canned paragraph of elastic card claw body plugs together mutually with the body bottom symmetrical grooves of Connection Block.

Therefore remarkable result of the present utility model is:

Owing to elastic card claw up and down is that an elastic board chip punching press by integral body constitutes, therefore, association is closely arranged between two claws, its elastic displacement can compensate mutually, so, both firm after the circuit daughter board inserts, be not subject to vibration again and get loose, can guarantee the reliable contact of circuit board and safety is normal uses.

In addition, because the vertical section hypomere of last elastic card claw is not connected with the elastic card claw body, make whole elastic card claw right part be cantilever position, so have bigger elastic deformation amount and the composite elastic that produces by double-decker, the circuit daughter board is in turning to position fixing process, the contact point of claw up and down and the circuit daughter board of elastic card claw can keep excellent contact all the time, have guaranteed the good channel status of circuit.

Concrete structure of the present utility model is realized by the following examples and accompanying drawing thereof:

Fig. 1 is the structure chart 1 of existing elastic card claw.

Fig. 2 is the structure chart 2 of existing elastic card claw.

Fig. 3 is the three-dimensional combination figure of the utility model and associated components.

Fig. 4 is a structure chart of the present utility model.

Fig. 5 is the initial condition figure after circuit daughter board and the utility model plug together.

Fig. 6 be the circuit daughter board in switching process with location state diagram of the present utility model.

Fig. 7 is that the circuit daughter board is when finally locating and location state diagram of the present utility model.

Fig. 8 is the structure chart of another embodiment of the present utility model.

Be described in detail below in conjunction with accompanying drawing 3 to 8 pairs of concrete structures of the present utility model of accompanying drawing.

Shown in Figure 3 is that the utility model is applied to the use embodiment on the angle-inserting type socket 1, be provided with a plurality of grooves 12 that supply elasticity claw 2 to plug together at position, Connection Block body 1 stage casing, be provided with the slot 11 of inserting embedding with metal clip 3 mutually at body 1 two ends, there is block tongue 33 metal clip 3 inboards convex respectively, and its front end evagination has spanner 33.When circuit daughter board B when embedding Connection Block 1, the both sides of circuit daughter board B are subjected to the restriction of the block tongue 31 of metal clip 3, make circuit daughter board B be able in the angle location of setting, and the circuit of its lower end can be by elastic card claw 2 firm clampings, with the conducting of assurance circuit.

The architectural feature of elastic card claw described in the utility model sees also Fig. 4 and Fig. 8:

The utility model by Connection Block body 1 and with Connection Block body 1 on the elastic card claw 2 that plugs together mutually of the groove 12 of setting constitute, it is characterized in that: elastic card claw 2 is die-cut and become a monolithic construction by an integral, flexible metal sheet, and the body section 21 of elastic card claw 2 is

Shape, above body section 21, extend and be bent with a upper clipping claw F and claw E once, it between the claw up and down the arcuation section 24 of an indent, claw F and E constitute a continuous composite elastic body by disjunct double-deck plate up and down, upper clipping claw F or down the straight section 23 that lets droop among the claw E do not link to each other with elastic card claw body section 21, the equal epirelief of elastic card claw 2 body section, 21 left and right sides has a canned paragraph 22 that plugs together mutually with Connection Block 1 slot 13.Referring to Fig. 4 and Fig. 8

Architectural feature of the present utility model also is:

Oblique upper is extended with an oblique straight section 25 left at the middle part of the body section 21 of elastic card claw 2, upwards extend bending back formation claw E down to the lower right thereafter along oblique straight section 25 upper ends, form an indent segmental arc 24 in the lower right of the company's of passing through extension mutually with following claw E, upwards level is to the right thereafter on the summit on the indent segmental arc 24, form upper clipping claw F more vertically downward, the following top 231 of the vertical section 23 of upper clipping claw F does not link to each other with elastic card claw body section 21 and is cantilever-shaped.Referring to Fig. 4

Architectural feature of the present utility model also is:

Vertical epirelief one vertical section 25 on body section 21 right sides of elastic card claw 2, along the top of vertical section 25 left thereafter to the lower right bending, enclose to the upper left side and curve an indent segmental arc 24 again, the top of indent segmental arc 24 and first level are to the right, the vertical again vertical section 25 that connects has down constituted upper clipping claw F thereafter, the end of indent segmental arc 24 and first level are left, vertically downward vertical section 23 has constituted the following claw E of cantilever again thereafter, and the lower end 231 of vertical section 23 does not link to each other with elastic card claw body section 21.Referring to Fig. 8

Architectural feature of the present utility model also is:

The inner chamber that indent segmental arc 24 surrounds is heart shape, claw F and E all are corresponding interior convex up and down, have one to insert gap G between two claws, the oblique straight section that extends to the upper left side that links to each other with the horizontal body section 21 of elastic card claw 2 or vertical on the thickness of the vertical section 25 that prolongs greater than the thickness of other bending segment of formation elastic card claw.Referring to Fig. 4 and Fig. 8

Architectural feature of the present utility model also is:

With the outer side edges of elastic card claw horizontal body section 21 disjunct vertical test sections 23 and the gap between Connection Block 1 madial wall less than the gap between elastic card claw 2 opposite sides and Connection Block 1 madial wall.Referring to Fig. 4 and Fig. 8

Operation principle of the present utility model is:

When distance setting between the following claw E of elastic card claw 2 and the upper clipping claw F when being 45 degree oblique angles when the relative Connection Block body 1 of circuit daughter board B, then be the state of circuit daughter board B from breach G insertion indent segmental arc 24.Referring to Fig. 5

When circuit daughter board B inserts between two claws and after being positioned, then B is exerted pressure to the inclination angle direction that presets, promptly exert pressure downwards, referring to Fig. 6, at this moment, because the effect of downforce makes claw F and E formation leverage up and down, because tiltedly straight section 24 thickness are yielding greatly and not, segmental arc 24 at first is out of shape, thereby make the part of upper clipping claw F and vertical section 23 be lifted also inclined, but this moment E, spacing between F does not change, and only the orientation of its breach G changes to some extent, and this distortion of nearly section in claw E below segmental arc 24 has at present formed a kind of initial elastic force.Referring to Fig. 6

When circuit daughter board B angle of inclination continues to change, when promptly continuing to press down, vertical section 23 lower ends are subjected to the restriction of Connection Block 1 inwall, and make 23 to produce flexural deformation, therefore and produce the second road elastic force, referring to Fig. 7, when this elastic force increases to elastic force greater than segmental arc 24, distance begins to become big and is stretched and forms the 3rd road elastic force between claw F and the E up and down, the result that the 3rd road elastic force produces diminishes the second road elastic force, and cause vertical section 23 to have recovering the trend of former plumbness, this trend to make initial elastic force and the mutual balance of the second road elastic force and form a kind of composite elastic, and this composite elastic is compound mutually with the 3rd road elastic force.When this composite elastic surpasses the elastic force of vertical or oblique straight section 25, then 25 begin distortion and form the 4th road elastic force, the 4th road elastic force will increase by 23 elastic force, make it form the composite elastic of first and second road elastic force, promptly form 25 and 23 composite elastic, spacing about making between claw F and the E continues expansion and continues to keep the balance of integral body, therefore, B is pushed into the location when the circuit daughter board, and behind block tongue 31 buckles by slot shown in Figure 3 11, circuit daughter board B goes up the set circuit and the F of claw up and down of elastic card claw 2, E closely contacts, make circuit remain on stable channel status, not the external vibration of reason and cause the of short duration escape of circuit and claw F up and down and E contact point.

As long as circuit daughter board B is deviate from block tongue 31, then 13 of circuit daughter boards are upspring automatically by positioning states under the composite elastic effect.

Shown in Figure 8 is second embodiment of the present utility model, basic and shown in Figure 4 identical of its structure, and different is its cantilever end is in the left side, and oblique straight section 25 is on the right side and be the plumbness that raises up.

Claims (5)

1, the elastic card claw of circuit board Connection Block, by Connection Block body 1 and with Connection Block body 1 on the elastic card claw 2 that plugs together mutually of the groove 12 of setting constitute, it is characterized in that: elastic card claw 2 is die-cut and become a monolithic construction by an integral, flexible metal sheet, the body section 21 of elastic card claw 2 is a shape, above body section 21, extend and be bent with a upper clipping claw F and claw E once, it between the claw up and down the arcuation section 24 of an indent, claw F and E constitute a continuous composite elastic body by disjunct double-deck plate up and down, upper clipping claw F or down the straight section 23 that lets droop among the claw E do not link to each other with elastic card claw body section 21, the equal epirelief of elastic card claw 2 body section, 21 left and right sides has a canned paragraph 22 that plugs together mutually with Connection Block 1 slot 13.

2, according to the elastic card claw of the described circuit board Connection Block of claim 1, it is characterized in that: oblique upper is extended with an oblique straight section 25 left at the middle part of the body section 21 of elastic card claw 2, upwards extend bending back formation claw E down to the lower right thereafter along oblique straight section 25 upper ends, form an indent segmental arc 24 in the lower right of the company's of passing through extension mutually with following claw E, upwards level is to the right thereafter on the summit on the indent segmental arc 24, form upper clipping claw F more vertically downward, the following top 231 of the vertical section 23 of upper clipping claw F does not link to each other with elastic card claw body section 21 and is cantilever-shaped.

3, elastic card claw according to the described circuit board Connection Block of claim 1, it is characterized in that: vertical epirelief one vertical section 25 on body section 21 right sides of elastic card claw 2, top along vertical section 25 bends to the lower right left thereafter, enclose to the upper left side again and curve an indent segmental arc 24, the top of indent segmental arc 24 and first level are to the right, thereafter the vertical again vertical section 25 that connects has down constituted upper clipping claw F, the end of indent segmental arc 24 and first level are left, thereafter vertically downward vertical section 23 has constituted the following claw E of cantilever again, and the lower end 231 of vertical section 23 does not link to each other with elastic card claw body section 21.

4, according to the elastic card claw of claim 2 or 3 described circuit board Connection Blocks, it is characterized in that: the inner chamber that indent segmental arc 24 surrounds is heart shape, claw F and E all are corresponding interior convex up and down, have one to insert gap G between two claws, the oblique straight section that extends to the upper left side that links to each other with the horizontal body section 21 of elastic card claw 2 or vertical on the thickness of the vertical section 25 that prolongs greater than the thickness of other bending segment of formation elastic card claw.

5, according to the elastic card claw of claim 2 or 3 described circuit board Connection Blocks, it is characterized in that: with the outer side edges of elastic card claw horizontal body section 21 disjunct vertical test sections 23 and the gap between Connection Block 1 madial wall less than the gap between elastic card claw 2 opposite sides and Connection Block 1 madial wall.

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