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A relay base structure with stable positioning and good consistency can be achieved during secondary injection molding

A secondary injection molding, consistent technology, applied in relays, electromagnetic relays, electromagnetic relay details and other directions, can solve problems such as damage to manufacturing equipment, hidden dangers in quality, improper installation, etc., to prevent longitudinal and lateral offset, overcome torsion Offset, reliable effect of core end face position

Active Publication Date: 2017-12-19
XIAMEN HONGFA ELECTROACOUSTIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The deviation of the lead-out terminal 201 will lead to the failure of automatic and efficient manufacturing in production, and may even damage the manufacturing equipment; at the same time, the skew of the lead-out terminal 201 will also affect the customer's installation and use of the relay, making the installation not in place, which will bring hidden dangers to quality

Method used

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  • A relay base structure with stable positioning and good consistency can be achieved during secondary injection molding
  • A relay base structure with stable positioning and good consistency can be achieved during secondary injection molding
  • A relay base structure with stable positioning and good consistency can be achieved during secondary injection molding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] see Figure 4 As shown, a relay base structure of the present invention that can achieve stable positioning and good consistency during secondary injection molding includes a coil frame 1 and two copper leads formed at one end of the coil frame 1 during one injection molding as coil lead-out pins. Sheet 11, the other end of the coil frame 1 is not provided with a copper lead-out sheet, but a positioning part for positioning with the injection mold during secondary injection molding is provided at the other end of the coil assembly, so that two copper wires at one end of the coil frame When the corresponding positions of the material lead-out sheet and the static spring band are positioned by laser welding, the positioning part can position the coil assembly in a preset direction. The coil assembly includes a coil frame, iron core, copper lead-out piece and copper wire. The first injection molding process is to form an integral part including the coil frame 1 through inj...

Embodiment 2

[0046] see Figure 12 to Figure 13 As shown, a relay base structure of the present invention that can achieve stable positioning and good consistency during secondary injection molding is different from Embodiment 1 in that the positioning part is formed on the other end of the coil frame after one injection molding The two positioning holes 13 on.

[0047] Wherein, the positioning hole 13 is a circular hole, that is, the cross section of the positioning hole is circular.

[0048] Certainly, the cross-section of the positioning hole may also be square, oval, triangular, or polygonal.

Embodiment 3

[0050] see Figure 14 to Figure 15 As shown, a relay base structure of the present invention that can achieve stable positioning and good consistency during secondary injection molding is different from Embodiment 1 in that the positioning part is formed on the other end of the coil frame after one injection molding A positioning hole 14 on the.

[0051] Wherein, the positioning hole 14 is a circular hole.

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Abstract

The invention discloses a relay base structure capable of realizing positioning stability and good consistency during secondary injection molding. The relay base structure includes a coil rack and two copper leading-out sheets which are formed on one end of the coil rack during primary injection molding and serve as coil leading-out pins, and the other end of the coil rack is not provided with copper leading-out sheets, but the other end of a coil component is provided with a positioning part used for realizing positioning with an injection mold during secondary injection molding, so that when corresponding positions of the two copper leading-out sheets of the one end of the coil rack and a static spring belt adopt laser welding positioning, the positioning part can enable the coil component to realize positioning in a preset direction. Through improvement of a relay base structure, internal stress generated after integral injection molding of a coil due to deformation of the static spring belt can be eliminated, leading-out terminals of a relay can be guaranteed to be straight after integral injection molding, and thus efficient automated production can be realized and performance can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of relays, in particular to a relay base structure capable of achieving stable positioning and good consistency during secondary injection molding. Background technique [0002] The base part of the existing electromagnetic relay includes: a static reed, a static contact welded on the static reed, a lead-out terminal of the static reed, a coil assembly, a coil lead-out terminal, and a plastic part wrapping and connecting this part into a whole. Among them, the coil assembly includes a coil frame, a copper wire wound on the coil frame, an iron core and a copper lead-out piece, wherein the coil frame is a plastic part that wraps and connects the iron core and the copper lead-out piece to form a whole , The coil frame is made into a skeleton shape that can be wound with copper wire. [0003] During the manufacturing process of the base part of the electromagnetic relay, two injection molding processes are requ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H50/04H01H50/44
CPCH01H50/041H01H50/44H01H2050/446
Inventor 林佳宾
Owner XIAMEN HONGFA ELECTROACOUSTIC CO LTD
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