CN201673175U

CN201673175U - Improved structure of wiring terminal for testing electrical appliance

Info

Publication number: CN201673175U
Application number: CN2010201478427U
Authority: CN
Inventors: 黄孝明
Original assignee: SHENZHEN CITY XINSONG TECHNOLOGY Co Ltd
Current assignee: SHENZHEN CITY XINSONG TECHNOLOGY Co Ltd
Priority date: 2010-04-01
Filing date: 2010-04-01
Publication date: 2010-12-15
Anticipated expiration: 2020-04-01

Abstract

The utility model relates to an improved structure of a wiring terminal for testing an electrical appliance, comprising a wiring terminal, wherein the end surface of a contact head of the wiring terminal is V-shaped. The improved structure of the wiring terminal for testing the electrical appliance is characterized in that the part from the bottom of the V-shaped end surface to the middle of the wiring terminal is provided with a through groove dividing the upper part of the wiring terminal into two parts. The middle of the wiring terminal is provided with a through hole communicated with the through groove, and the diameter of the through hole is larger than the width of the through groove. The outside of the wiring terminal is provided with a chamfer angle. The improved structure of the wiring terminal for testing the electrical appliance has the advantages of simple structure, capability of achieving the purpose of surface-to-surface contact by slightly improving the structure of the existing wiring terminal, good contact performance, avoidance of phenomenon of heating of a contact point, guarantee of the normal execution of detection, ensured safety of detection equipment and products, reduced link of heat inspection and cost saving.

Description

Electric test binding post structural improvement

Technical field

The utility model relates to the binding post on a kind of electric test equipment

Background technology

After all kinds of electronic apparatuss, instrument are produced, often need detect, avoid substandard product to flow out market it.Ammeter for example usually when test, inserts the binding post of tester in the connection terminal of ammeter, and jack in the middle of connection terminal comprises and the screw in the jack, the contact head of binding post contact realization and electrically contact with screw.Can imagine that its contact realizes that by the threaded line and the contact head end face of screw surface of contact is quite little fully, high electric current by the time can generate heat, heating can cause product to be burnt out.For fear of burning out, need the temperature of corresponding apparatus butt contact to measure again, when temperature is too high, remove, test again after waiting to lower the temperature.In order to strengthen contact area, generally be that the contact head end face is designed to cancave cambered surface, V-shaped, even if but like this, screw also is that line contacts with contact head, contact area is still very little, the generation of inevitable high-temperature condition.

The utility model content

The utility model is will solve above technical matters and structure improved binding post that the contact area of a kind of effective increasing binding post and connection terminal is provided.

In order to reach the utility model purpose, this electric test binding post structural improvement that the utility model provides comprises binding post, and the contact head end face of binding post is V-shaped, it is characterized in that: described V-arrangement end face bottom to binding post middle part is provided with groove, with binding post top separated into two parts.Continue the application of force prop up the screw of connection terminal at contact stud after, binding post can open and effectively contacts with the connection terminal inwall to both sides, reaches the purpose that increases contact area.

The binding post middle part is provided with through hole, and through hole is communicated with groove, and through-hole diameter is greater than the groove width.This design can reduce to open the required acting force of binding post.

The outside, binding post end is provided with chamfering.Utilize this chamfering, after binding post opened, fillet surface contacted with the face of connection terminal inwall, has increased effective surface of contact.

The utility model is simple in structure; just the existing rod structure that connects is improved a little; promptly reach the purpose of face face contact; contact is good; can not come in contact the phenomenon of a heating, guarantee normally carrying out of detection, protect the safety of checkout equipment and product; reduce the link that heating is checked, saved cost.

Description of drawings

Fig. 1 is the utility model binding post structural representation.

Fig. 2 is the utility model binding post stereographic map.

Fig. 3 is that the utility model binding post acts on the connection terminal view.

Embodiment

Below with reference to accompanying drawing and use embodiment, the utility model is described.

As shown in Figure 1 and Figure 2, the present embodiment electric test is identical with existing binding post with binding post, comprise binding post 1, the contact head end face 2 of binding post is V-shaped, institute's difference is: V-arrangement end face 2 bottoms to binding post middle part is provided with groove 3, this groove 3 is with binding post top separated into two parts, and groove 3 bottoms are diameter through holes 4 greater than the groove width.The purpose of this design is conveniently binding post two parts to be strutted.Again as shown in Figure 3, when binding post 1 firmly props up screw 7 in the connection terminal 6 of product to be tested, 7 pairs of V-type end faces 2 of screw have applied the acting force to both sides, so binding post 1 two parts are strutted, the thickness that also can see binding post through hole 4 positions among the figure is less, is beneficial to separately to be unlikely to damage binding post.Because the inwall 8 of connection terminal 6 is parallel to each other, so be provided with chamfering 5 in the outside, binding post 1 end, the chamfering 5 that is strutted Y-shaped binding post upper end contacts with connection terminal inwall 8, has realized the area maximization of face face contact.Efficiently solve when test binding post and problem of cause generate heat high temperature little with the interior contact area of connection terminal.

Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, its framework form is flexible and changeable, can the subseries product.Just make some simple deduction or replace, all should be considered as belonging to the scope of patent protection that the utility model is determined by claims of being submitted to.

Claims

1. an electric test binding post structural improvement comprises binding post, and the contact head end face of binding post is V-shaped, it is characterized in that: described V-arrangement end face bottom to binding post middle part is provided with groove, with binding post top separated into two parts.

2. electric test binding post structural improvement according to claim 1 is characterized in that: the binding post middle part is provided with through hole, and through hole is communicated with groove, and through-hole diameter is greater than the groove width.

3. electric test binding post structural improvement according to claim 1 is characterized in that: the outside, binding post end is provided with chamfering.