Three-electrode power plug inner frame with grounding elastic sheet

Abstract

The invention relates to a three-electrode power plug inner frame with a grounding elastic sheet, wherein the inner frame comprises a frame body which is provided with a positive electrode terminal, a negative electrode terminal and the grounding elastic sheet respectively; the grounding elastic sheet passes through a ground wire hole, is formed by kinking and is assembled by embedding the end part of the grounding elastic sheet and the frame body; and one side part of the grounding elastic sheet extends out to form a hollow upright cylindrical wire-placing cylinder. The three-electrode powerplug inner frame is characterized in that a frame base is extended from one side wall of the frame body and is provided with a hollow hole base of which the inner edge has a convergent shape from theoutside to the inside, and the hollow part of the hollow hole base is communicated with the wire-placing cylinder. With the three-dimensional design of the frame base, the rigidity and the strength of the three-electrode power plug inner frame are improved; and with the three-dimensional firmness characteristic of the frame base, the stability of a built-in core wire is improved, the dislocation deviation is reduced, and the product quality is improved.

Description

technical field [0001] The invention relates to an inner frame of a three-pole power supply plug with grounding elastic pieces, in particular to a plug inner frame with grounding elastic pieces. Background technique [0002] Generally, for the use of electrical appliances or electrical appliances in daily life and industrial operation, the power source of the alternating current is mainly connected with a socket through a wire plug, and conducts current to the electrical appliances or electrical appliances. Generally, the operation method of plug injection molding is to put the terminal into an inner frame body after the crimping operation is completed, and then put it into the mold of the plug shell for integral injection molding (molding). [0003] In addition, there is a three-pole power plug in the plug. This type of plug is widely used in general electrical appliances because it is safer to use than the aforementioned general plug, and it is also a safety standard in so...

AI Technical Summary

Problems solved by technology

Yet the problem of described background technology 1 is that it must additionally be provided with an L-shaped protruding piece (15) at frame body (11), but because described L-shaped protruding piece (15) only forms support on one side, Stress concentration is easy to occur, and in the case of insufficient strength, it is easy to break and cause serious quality defects

Moreover, the other end is suspended without support, so it is easy to cause deformation, so that the tapered hole (151) is not easy to align with the wire setting barrel (142) (that is, misalignment occurs), which affects the accuracy of the wire setting and quality

[0005] Background technology 2 as shown in Figure 2 in addition, as EP0332034B2 patent case, although described case inner frame (2) is provided with a protruding piece (22), described protruding piece (22) is to design one end by frame body ( 21) extension, and the other end is supported by a supporting cantilever (23). Therefore, although the strength of the two ends is relatively average, it still belongs to the flat state, but relatively consumes materials and is still insufficient in rigidity and strength.

[0006] And by Fig. 2 28, described lug (22) bottom is provided with a groove (221), can allow a wire barrel (24) to take in, but because the cross-section of usually described wire barrel (24) It is circular (with the transverse direction of the drawing as the cross-section), and the cross-section of the groove (221) is also circular, and after the wire placement is completed, the wire placement barrel (24) must be Clamped by riveting, and at this time the circle is deformed due to clamping, making it difficult to accommodate the circular groove of the lug (22), that is, the clamping deformation of the wire setting barrel (24) state will interfere with the circular groove (221), causing damage to the tab (22)

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