CN2187843Y - Wiring terminal with integral wire press frame - Google Patents

Abstract

The utility model relates to a wiring terminal with a whole type wire press frame. The utility model is suitable for universal wire holders with direct current or alternating current frequency being 0-50HZ, rated alternating current voltage under 660V and rated alternating current under 120A, belonging to an industrial low-voltage electrical apparatus. The utility model comprises a wire press frame, a wire press screw, an electric conductive strip and a plastic shell. The utility model is characterized in that the perisporium of the hole of the wire press frame is in a seamless whole type metal structure. Therefore, the lamination type wire press frame can not be caused to slide tooth because of the mutual displacement of lamination. The tooth sliding can cause conducting wires be loosened. The utility model is also characterized in that the screw hole of the wire press frame of the plastic shell is an inverted conical hole which can be fastened through a universal screwdriver, which reduces cost and improves work efficiency.

Description

Wiring terminal with integral wire press frame

The utility model is applicable to direct current or a-c cycle 0-50HZ, and specified alternating voltage is below 660 volts, and the general junction block that specified alternating current 120A is following belongs to industrial low-voltage electrical apparatus.

Because electric box, screen, platform, the cabinet of industry manufacturings such as China's electromechanics, boats and ships, light textile are progressively drawn close international standard, the domestic junction block of using till today over the years, for example series such as JD, D, B, X, JX are faded in backwardness.In order to make junction block also can step into international standard thereupon, the indivedual enterprises of China have introduced West Germany WEIDMULLER electric corporation technology, have made the electrical equipment standardization junction block with leading domestic level, are fixed to the general junction block of TZ20 series.This junction block is all by the different size monolithic design, so can look actual needs lengthening or combination arbitrarily, its distinguishing feature is: the user can be under the condition that does not change former design circuit, can directly use or use instead this serial junction block instead, it is very convenient to install and use, and the electricapparatus performance is excellent, and price is also low than junction blocks such as AG, the TD of same specification, JP, JR, JC.But in introducing the process of implementing, also found the problem that some are new, one of problem is the seriously sliding tooth of pressing line frame, influenced applying of TZ20 binding post, because the pressing line frame of present known junction block is with the sheet metal punch forming, two parts end to end of thin plate are superimposed, (see figure 2) is attacked thread in the center of superimposed part with screw tap, this thread and pressing line frame screw fit, the screw in compression conducting strip, conducting strip compresses lead, to guarantee the reliable of wiring and stablizing of working, because the restriction of factors such as the complexity of technology and cost, thin plate two partly superimposedly only depends on punching press fixed-type end to end, there is no special affixed technology, therefore when the pressing line frame screw screws, because conducting strip has compressed lead, conducting strip produces reaction force to the pressing line frame screw, so the pressing line frame screw produces propulsive thrust to superimposed pressing line frame, because above-mentioned two pressing line frames do not have special affixed technology, so two thin plates produce relative displacement and loosening, cause the sliding tooth of counterpart, do not have the effect that compresses lead, and produce some fearful electrical equipment accidents thus, directly influenced this product applying in control panel.Two of problem is that the line pressing bolt hole of prior art products plastic housing is hole, cylindricality garden, a garden, the work of the screwdriver on the market partly is isosceles trapezoid, when therefore screwing the pressing line frame screw with utility screwdriver, thereby will running into the screwdriver that makes suitable for reading of pressing line frame screw hole, the big end of screwdriver can not continue backspin, do not reach the purpose that screws line ball, so have to make the full dog point socket set cutter in addition, not only time-consuming but also expensive, do not conform to the requirement of product versatility.

The purpose of this utility model just provides a kind of TZ-20 binding post that uses the integral type pressing line frame, it had both guaranteed all characteristics of original product, overcome the sliding tooth of existing product pressing line frame again, got loose, screwdriver can not be general shortcoming, reached rapidly convenient when tightening line ball, lead never gets loose, the purpose that work quality is safe and reliable.Essence of the present utility model (1) is that a seamless metal integral formula pressing line frame replaces the superimposed pressing line frame of thin plate head and the tail with perisporium, thereby the displacement between two laminations, loosening sliding tooth situation have been avoided, increased effective connection length of thread, having improved work has reliability; (2), in moulding the line pressing bolt hole 5 of shell 7, replace post hole, former garden with the garden taper hole, replaced former full dog point socket set cutter with utility screwdriver when fastening, reduced cost, improve the product versatility degree, help applying of product.

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is the binding post installation diagram

Fig. 2 a is the main pseudosection of former pressing line frame

Fig. 2 b is the end view of former pressing line frame

Fig. 3 a is the main pseudosection of present technique pressing line frame

Fig. 3 b is the end view of present technique pressing line frame

Its figure number is expressed as respectively: pressing line frame 1, line pressing bolt 2, conducting strip 3, lead 4, line pressing bolt hole 5, pressing line frame bottom 6, plastic housing 7,

The TZ20 binding post has all size models such as 10A, 20A, 60A, 143A, but their mode of connection all is the same, be that pressing line frame is inlaid in and moulds in the shell, between the bottom 6 of pressing line frame and conducting strip 3, insert lead 4, pressing line frame screw 2 is threaded with pressing line frame, when screwing the pressing line frame screw, and screw in compression conducting strip 3, so conducting strip and pressing line frame bottom are tightly with lead 4 clampings, to guarantee the operate as normal of electric equipment.This accompanying drawing embodiment is a kind of 20A specification of TZ20, it has replaced the stacked pressing line frame of original technology with integral type pressing line frame 1, replaced former garden column type screw hole with taper line pressing bolt hole 5 moulding on the shell 7, like this when work, can replace original full dog point socket set cutter with general screwdriver, saved cost, convenient use, the popularization of favourable new product.Because pressing line frame is all-in-one-piece, the mutual displacement that stacked pressing line frame can not take place causes sliding tooth, lead is got loose, the electrical equipment accident takes place, therefore this integral type pressing line frame 1 is the type that never gets loose, and he has thoroughly solved ubiquitous headachy product quality problem in the popularization TZ20 binding post process: because of sliding tooth causes lead to get loose.

Claims (2)

1, a kind of binding post that has the integral type pressing line frame comprises pressing line frame 1, line pressing bolt 2, conducting strip 3, plastic housing 7, and the perisporium that it is characterized in that the hole of pressing line frame 1 is a seamless integral type metal structure.

2, according to claim 1, the binding post of described integral type pressing line frame is characterized in that the line pressing bolt hole 5 of plastic housing 7 is a taper hole of falling the garden.

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