Wiring sheet and coil framework provided with wiring sheet

Abstract

The invention relates to a wiring sheet. The wiring sheet comprises a locating part (11) and a fastening part (12), the locating part (11) is used for being connected with a coil framework, and the fastening part (12) is used for being connected with a locking mechanism; the wiring sheet is characterized in that a bending unit (111) is arranged at one side of the locating part (11) and is used forbeing slidably connected with a slide groove in the coil framework. Compared with the prior art, the bending unit is arranged at one side of the locating part of the wiring sheet and is used for being slidably connected with the slide groove in the coil framework, the bending technological requirement is low, by increasing the bending height, the contact area can be increased, thus the torque bearing capacity of the wiring sheet is improved, when a screwdriver screws on a screw, displacement is not easily generated, it is avoided that when an enameled wire is damaged and broken, a product isinvalid since the tail of the wiring sheet is screwed off, and a plastic block is prevented from shedding when the coil framework is broken.

Description

technical field [0001] The invention relates to an electromagnetic coil frame, in particular to a connecting piece and a coil frame with the connecting piece. Background technique [0002] The electromagnetic coil is usually wound on the coil frame, and the coil frame includes a support frame and a winding disk, and one side of the support frame is connected with a lug. [0003] The current common lug structure is as follows: figure 1 As shown, the fixing method of the lug and the coil frame is as follows figure 2 As shown in the figure, after the interference fit between the lug and the coil frame, the lug is clamped and fixed by the boss and the positioning hole. But this structure obviously has the following defects: [0004] 1. The fixing method of the lug and the coil frame is unreliable. The lug is only limited by a convex hull and a small area of ​​the coil bobbin, which cannot bear the torque in the screw tightening direction. ,Such as image 3 As shown in the ...

AI Technical Summary

Problems solved by technology

[0004] 1. The fixing method of the lug and the coil frame is unreliable. The lug is only limited by a convex hull and a small area of ​​the coil bobbin, which cannot bear the torque in the screw tightening direction. ,like image 3 As shown in the figure, the arrow in the figure indicates the screw tightening direction, and the enameled wire will be pulled when the lug is unscrewed, which will seriously cause the enameled wire to break; severe enough to affect the use of the product

[0005] 2. The lug and the coil frame are interference fit, and the convex hull on the lug should not be too high, and due to technological problems, the boss of the convex hull cannot make obvious steps, and it is impossible to ensure that the boss and the positioning hole of the bobbin are effectively fixed. ; Unreliable fixation, falling out of the fixing groove, causing the enameled wire to break, and the contactor cannot be closed

This will lead to suction noise or movement stagnation, which will cause serious failures such as coil burnout or contact burnout

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