A plug-in resistant blade terminal

Abstract

The application discloses a plug-resistant plug-in terminal, comprising a male end and a female end, the female end comprising a female conductor connecting area and an elastic opening contact area, the opening contact area comprising a female first contact area and a female second contact area, the female first contact area being one or more protruding parts on the female second contact area, the female second contact area being a conductive contact area, the male end comprising a male first contact area, a male second contact area and a male conductor connecting area arranged in sequence from front to back, and the male second contact area being provided with an avoiding part on both sides or a middle part for avoiding the female first contact area. The reliable design of the male end and the female end contact pair effectively reduces the abrasion of the male second contact area and the female second contact area, and high current and high plug-in life are obtained; meanwhile, the multiple design ensures a lower resistance after plugging, and improves the contact stability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of terminal, in particular to a plug-resistant blade terminal. BACKGROUND

[0002] In order to ensure firm contact between the male terminal and the female terminal, the existing blade terminal design usually has a female terminal with a large elastic element to elastically act on the male blade to ensure the contact area and contact force. For example, the invention disclosed in Chinese Patent Publication No. CN108074778A has an elastic sheet and an elastic plane provided in the insertion part, which simultaneously elastically act on the male terminal to ensure the mating area of the male terminal and the female terminal and increase the stability after insertion. However, this setting method will cause high wear on the contact part of the male blade and the elastic contact area due to the large elastic pressure during long-term insertion and removal, thereby shortening the service life of the product. SUMMARY

[0003] The purpose of the present application is to provide a plug-resistant blade terminal to solve the above technical problems.

[0004] Technical solution: The plug-resistant blade terminal provided by the present application comprises a male terminal and a female terminal. The female terminal comprises a female terminal conductor connection area and an elastic open contact area. The open contact area comprises a female terminal first contact area and a female terminal second contact area. The female terminal first contact area is one or more protruding parts located on the female terminal second contact area, forming two contact areas with a height difference. The female terminal second contact area is a conductive contact area. The male terminal comprises a male terminal first contact area, a male terminal second contact area and a male terminal conductor connection area arranged in sequence from front to back. The male terminal second contact area is provided with a relief part on both sides or in the middle for avoiding the female terminal first contact area.

[0005] Further, an auxiliary holding structure is provided inside the elastic open contact area for clamping the male terminal after insertion.

[0006] Further, the auxiliary holding structure is provided inside the female terminal at the bottom, which is an open elastic element for pressing the elastic open contact area.

[0007] Further, an outer shell is provided, and a rib is provided on the upper end of the outer shell to provide a holding force for the female terminal elastic open contact area.

[0008] Further, the female terminal first contact area is symmetrically arranged on the upper and lower ends of the elastic open contact area.

[0009] Further, the male terminal first contact area is provided with a chamfer at the front end.

[0010] Further, the female terminal is an elastic sleeve integrally formed by a mold.

[0011] Further, the male second contact area has a thickness of 0.1-5mm and a width of 0.1-50mm, and the contact surface is 0-10mm lower than the contact surface of the male first contact area.

[0012] Advantages: Compared with the prior art, the application has the following advantages:

[0013] (1) By reliable design of the male and female contact pairs, the wear of the male second contact area and the female second contact area is effectively reduced, and high current and high plugging life are obtained.

[0014] (2) By the matching design of the male first contact area and the female first contact area, the falling off after insertion is effectively prevented.

[0015] (3) By the design of the clamping structure, the male end after insertion is further tightened, and the falling off is effectively prevented.

[0016] (4) The chamfer is provided at the front end of the male first contact area, which can prevent the live plugging caused by the sudden change of the step during plugging and unplugging.

[0017] (5) By the design of the shell, the male and female ends are effectively protected, the service life is improved, and the rib for providing the clamping force for the female elastic opening contact area is provided on the shell, and the contact stability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the application;

[0019] Figure 2 is a schematic diagram of the structure of the first embodiment of the application;

[0020] Figure 3 is a schematic diagram of the internal structure of the second embodiment of the application;

[0021] Figure 4 is a schematic diagram of the first structure of the male end of the application;

[0022] Figure 5 is a schematic diagram of the second structure of the male end of the application;

[0023] Figure 6 is a schematic diagram of the structure of the female end of the application;

[0024] Figure 7 is a schematic diagram of the structure of the female end of the second embodiment of the application. DETAILED DESCRIPTION

[0025] The application will be further described below in conjunction with the drawings and specific embodiments.

[0026] Embodiment 1

[0027] The present invention provides a plug-in resistant terminal block, such as... Figures 1-2 As shown, it includes a male end 1, a female end 2, and a housing 24. The female end 2 is an elastic sleeve integrally formed by a mold. The female end 2 includes a female end conductor connection area 21 and an elastic open contact area 22. The open contact area 22 includes a female end first contact area 221 and a female end second contact area 222. The female end first contact area 221 is a protrusion located on the female end second contact area 222. The female end second contact area 222 is a conductive contact area. The male end 1 includes a male end first contact area 11 and a male end second contact area 222 arranged sequentially from front to back. The male end second contact area 12 and the male end conductor connection area 13 are provided with avoidance parts 121 on both sides of the male end second contact area 12 to avoid the female end first contact area 221. The top of the outer shell 24 is provided with ribs 241 to provide clamping force for the female end elastic opening contact area 22. The outer shell 24 is made of high strength metal parts. When the male end 1 and the female end 2 are inserted, the interference between the male end first contact area 11 and the female end first contact area 221 is greater than the interference between the male end second contact area 12 and the female end second contact area 222.

[0028] When the male terminal 1 and the female terminal 2 need to be engaged, the first contact area 11 of the male terminal is inserted into the female terminal housing 24 to the open contact area 22, and contacts the first contact area 221 of the female terminal. At this time, the second contact area 12 of the male terminal does not contact or makes slight contact with the second contact area 222 of the female terminal. The insertion and extraction force is small and the wear is small. When the first contact area 11 of the male terminal continues to be inserted inward until it is engaged and disengaged from the first contact area 221 of the female terminal, the first contact area 221 of the female terminal falls into the male terminal relief part 121. At this time, the second contact area 12 of the male terminal and the second contact area 222 of the female terminal begin to make normal contact and obtain normal contact resistance. At the same time, the inwardly pressing rib 241 provided at the upper end of the housing abuts against the elastic open contact area 22, providing a certain clamping force to ensure that the contact parts reduce the tendency to loosen and enhance the contact stability between the second contact area 12 of the male terminal and the second contact area 222 of the female terminal.

[0029] Example 2

[0030] The present invention provides a plug-in resistant terminal block, such as... Figure 3As shown, it comprises a male end 1, a female end 2, an auxiliary holding structure 23, and a shell 24. The female end 2 is an elastic sleeve integrally formed by a mold. The female end 2 comprises a female end conductor connecting area 21 and an elastic opening contact area 22. The opening contact area 22 comprises a female end first contact area 221 and a female end second contact area 222. The female end first contact area 221 is a protruding part on the female end second contact area 222. The female end second contact area 222 is a conductive contact area. The male end 1 comprises a male end first contact area 11, a male end second contact area 12, and a male end conductor connecting area 13 arranged in sequence from front to back. The male end second contact area 12 is provided with an avoiding part 121 on both sides for avoiding the female end first contact area 221. When the male end 1 is inserted into the female end 2, the interference amount of the male end first contact area 11 with the female end first contact area 221 is greater than that of the male end second contact area 12 with the female end second contact area 222. The auxiliary holding structure 23 is arranged inside the elastic opening contact area 22, specifically at the bottom inside the female end 2, for clamping the male end first contact area 11 of the male end 1 after insertion. The elastic opening contact area 22 is an opening elastic part pressed towards the elastic opening contact area 22. The shell 24 is made of a metal part with high strength. The shell 24 is provided with a rib 241 at the upper end for providing holding force for the female end elastic opening contact area 22.

[0031] When the male end 1 and the female end 2 need to be inserted, the male end first contact area 11 is inserted into the female end shell 24 to the opening contact area 22 and contacts the female end first contact area 221. At this time, the male end second contact area 12 does not contact or has micro-contact with the female end second contact area 222, the insertion and extraction force is small, and the wear is small. When the male end first contact area 11 continues to be inserted inwardly until it is separated from the female end first contact area 221, the male end first contact area 11 is clamped into the opening of the auxiliary holding structure 23. The auxiliary holding structure 23 holds the male end first contact area 11, and the female end first contact area 221 falls into the male end avoiding part 121. At this time, the male end second contact area 12 starts to normally contact the female end second contact area 222 to obtain normal contact resistance. Meanwhile, the rib 241 provided at the opening of the upper end of the shell is pressed against the elastic opening contact area 22 to provide a certain compression elastic force, which ensures the contact part to reduce the tendency of relaxation and enhances the contact stability of the male end second contact area 12 and the female end second contact area 222.

Claims

1. A pluggable terminal block, comprising a male terminal (1) and a female terminal (2), characterized in that, The female end (2) includes a female end conductor connection area (21) and an elastic opening contact area (22). The opening contact area (22) includes a female end first contact area (221) and a female end second contact area (222). The female end first contact area (221) is one or more protrusions located on the female end second contact area (222). The female end second contact area (222) is a conductive contact area. The male end (1) includes a male end first contact area (11), a male end second contact area (12) and a male end conductor connection area (13) arranged sequentially from front to back. The male end second contact area (12) has avoidance parts (121) on both sides or in the middle for avoiding the female end first contact area (221). It also includes an auxiliary clamping structure (23) disposed inside the elastic opening contact area (22) for fastening the male end (1) after insertion; the auxiliary clamping structure (23) is disposed at the bottom inside the female end (2) and is an opening elastic element that presses against the elastic opening contact area (22); When the male end (1) and the female end (2) are inserted, the interference between the first contact area (11) of the male end and the first contact area (221) of the female end is greater than the interference between the second contact area (12) of the male end and the second contact area (222) of the female end.

2. The insertion and removal resistant prong terminal according to claim 1, characterized in that, The first contact area (221) of the female end is symmetrically arranged at the upper and lower ends of the elastic opening contact area (22).

3. The insertion and removal resistant prong terminal according to claim 1, characterized in that, The front end of the first contact area (11) of the male end is chamfered.

4. A plug-in resistant terminal block according to any one of claims 1-3, characterized in that, It also includes a housing (24), the upper end of which is provided with ribs (241) for providing a clamping force to the elastic opening contact area (22) of the female end.

5. A plug-in resistant terminal block according to claim 1, characterized in that, The male end first contact area (11) is provided with a protrusion corresponding to the female end first contact area (221).

6. A plug-in resistant terminal block according to claim 1, characterized in that, The female end (2) is an elastic sleeve integrally formed by a mold.

7. A plug-in resistant terminal block according to claim 1, characterized in that, The thickness of the second contact area (12) of the male end is 0.1~5mm, the width is 0.1~50mm, and the contact surface is 0~10mm lower than the contact surface of the first contact area (11) of the male end.

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