CN104638400A

CN104638400A - Circuit board electric connecting elastic sheet and fixing device

Info

Publication number: CN104638400A
Application number: CN201510055917.6A
Authority: CN
Inventors: 不公告发明人
Original assignee: Qingdao Topscomm Communication Co Ltd
Current assignee: Qingdao Topscomm Communication Co Ltd
Priority date: 2015-02-04
Filing date: 2015-02-04
Publication date: 2015-05-20

Abstract

The invention relates to a circuit board electric connecting elastic sheet and a fixing device. The circuit board electric connecting elastic sheet comprises an upper elastic sheet, a lower elastic sheet and a fixing bracket, wherein the upper elastic sheet is directly and forwards extended and bent from the fixing part to form an elastic arm, the front part of the elastic arm is narrow, the back part of the elastic arm is wide, the unfolding shape is a right-angled trapezoid shape, the connecting part of the upper elastic sheet and a middle buckle is in a sawtooth shape, and the fixing part and the lower elastic sheet are in pluggable type double-surface contact in a fork way. The circuit board electric connecting elastic sheet has the advantages that under the condition of circuit boards with the same size, a wiring terminal of a base has larger wiring space, the elastic range is large, the contact resistance is small, and the production and installation are convenient; the fixing bracket consists of a support arm and an oblique arm, and the oblique arm is outwards inclined at smaller angle, so the installation of the circuit board is firmer and more reliable.

Description

Wiring board is electrically connected shell fragment and fixture

Technical field

The present invention relates to a kind of wiring board and be electrically connected shell fragment and fixture.

Background technology

The base binding post of many electric equipments be contacted with shell fragment by a conducting end, shell fragment contacts with wiring board, realize conducting function, because traditional shell fragment is all be bent to form elastic arm backward, the distance of bottom up and down between the terminal of both sides is very near, the wiring space stayed is very limited, cause difficulty to wiring work, greatly reduce operating efficiency; In wiring board installation process, oppress shell fragment under pressure, upper shell fragment in the market, have fixing insecure, easily deviate from, cause contact lost efficacy; Some elastic ranges are little, easily reach its yield strength, cause positive force inadequate, contact was lost efficacy; Some elastic strengths are too high, and shell fragment is large to wiring board active force, and long duration of action easily makes wiring board be out of shape, and causes loose contact.

Meanwhile, a lot of product is perfect not for the fixed structure of wiring board:

1, the location structure of horizontal direction is only had, only compress by the structure of upper parts perpendicular to wiring board direction, during such assembling, wiring board easily moves or comes off, if and upper parts structure is plus tolerance, wiring board is stressed larger, yielding, if upper parts structure is negative common difference, wiring board easily rocks.

2, during fixing circuit board, one end adopts fixing hook, one end employing elasticity hook, but its elasticity hook intensity is low, after wiring board assembling, power is passed to elasticity hook by wiring board by shell fragment, elasticity hook is yielding or fracture, cause the easily movement of wiring board position, injuring part during assembling, because dysfunction appears in part dislocation in use procedure.

Summary of the invention

In order to the wiring space solving base binding post is not enough, shell fragment easily comes off, elasticity is not enough or positive force is large, wiring board installs the problems such as insecure, the invention provides a kind of wiring board and be electrically connected shell fragment and fixture, comprise shell fragment, lower shell fragment and fixed support, it is characterized in that: described upper shell fragment is bent to form elastic arm directly to front extension by fixed part, elastic arm is beloid, expansion shape is right-angled trapezium, before and after fixed part, both sides mid portion extends downwardly through the penetrating mouth of middle button is fork shape and the lower shell fragment double contact be fixed on base, upper shell fragment with in link and connect, coupling part is zigzag, described fixed support is made up of support arm and oblique arm, and oblique arm is outward-dipping with smaller angle.

Described upper shell fragment takes the mode directly to front extension is bending to form elastic arm by fixed part.

Described upper shell fragment and lower shell fragment coupling part are fork shape, and connected mode is grafting, are zigzag with middle button coupling part.

Described upper shell fragment elastic arm is beloid, and expansion shape is right-angled trapezium, and shell fragment material selection phosphor bronze.

Fixed support oblique arm is outward-dipping with smaller angle, and wiring board is assemblied between fixed support and upper shell fragment.

The invention has the beneficial effects as follows: compared with conventional elastic piece, when wiring board size is identical, base binding post has larger wiring space, simultaneously easy for installation, firm, reliable and stable between each parts.

Accompanying drawing explanation

Fig. 1 is that wiring board is electrically connected spiral-lock figure in shell fragment and fixture.

Fig. 2 is that wiring board is electrically connected in shell fragment and fixture and detains A-A face cutaway view.

Fig. 3 is that wiring board is electrically connected shell fragment and fixture base installation diagram.

Fig. 4 is that wiring board is electrically connected shell fragment front view in shell fragment and fixture.

Fig. 5 is that wiring board is electrically connected shell fragment left view in shell fragment and fixture.

Fig. 6 is that wiring board is electrically connected shell fragment vertical view in shell fragment and fixture.

In figure, button in 1., 2. goes up shell fragment, 3. fixed support, detains penetrating mouth, 5. support arm, 6. oblique arm, 7. descend shell fragment 4., 8. go up shell fragment fixed part, 9. go up shell fragment elastic arm, 10. Sawtooth connection place, 11. fork shape junctions

Embodiment

Below in conjunction with drawings and Examples, the invention will be further described.

As shown in figures 1 and 3, the present invention is that wiring board is electrically connected shell fragment and fixture, and this device comprises shell fragment (2), lower shell fragment (7) and fixed support (3).

Described upper shell fragment takes the mode directly to front extension is bending to form elastic arm (9) by fixed part (8), bend backward compared to traditional, when wiring board size is identical, the wiring space of base binding post is larger, or when requiring identical wiring space, the wiring board area that this device is installed is less, greatly facilitates wiring process, improves operating efficiency; Elastic arm (9) is beloid, and expansion shape is right-angled trapezium, and material therefor selects phosphor bronze, and the elastic range of upper shell fragment (2) is larger, and contact resistance is less, and simplifies manufacturing process; Upper shell fragment (2) is connected with middle button (1), and make connection more firm by zigzag fashion, under realizing applying 40N power, shell fragment does not come off; Before and after fixed part, both sides mid portion is fork shape by the penetrating mouth of middle button (4) and lower shell fragment (7) double contact on base to downward-extension, easy for installation, reliability is high;

Described fixed support (3) is made up of support arm (5) and oblique arm (6), oblique arm (6) is outward-dipping with smaller angle (0 ~ 5 °), after wiring board is installed, oblique arm (6) vertically makes wiring board bouncing displacement upwards less, change less with the positive force of shell fragment, contact resistance is more stable, and wiring board is assemblied between fixed support (3) and upper shell fragment (2) accurately by firm.

Based on embodiments of the invention, those of ordinary skill in the art are not making under creativity work prerequisite, and the every other embodiment obtained, all belongs to scope.

Claims

1. a wiring board is electrically connected shell fragment and fixture, comprise shell fragment, lower shell fragment and fixed support, it is characterized in that: described upper shell fragment is bent to form elastic arm directly to front extension by fixed part, elastic arm is beloid, expansion shape is right-angled trapezium, before and after fixed part, both sides mid portion extends downwardly through the penetrating mouth of middle button is fork shape and the lower shell fragment double contact be fixed on base, upper shell fragment with in link and connect, coupling part is zigzag; Described fixed support is made up of support arm and oblique arm, and oblique arm is outward-dipping with smaller angle.

2. wiring board according to claim 1 is electrically connected shell fragment and fixture, it is characterized in that: described upper shell fragment takes the mode directly to front extension is bending to form elastic arm by fixed part.

3. wiring board according to claim 1 is electrically connected shell fragment and fixture, it is characterized in that: described upper shell fragment and lower shell fragment coupling part are fork shape, and connected mode is grafting, are zigzag with middle button coupling part.

4. wiring board according to claim 1 is electrically connected shell fragment and fixture, it is characterized in that: described upper shell fragment elastic arm is beloid, and expansion shape is right-angled trapezium, and shell fragment material selection phosphor bronze.

5. wiring board according to claim 1 is electrically connected shell fragment and fixture, and it is characterized in that: fixed support oblique arm is outward-dipping with smaller angle, wiring board is assemblied between fixed support and upper shell fragment.