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A high temperature resistant relay and its production method

A production method and relay technology, applied in relays, electromagnetic relays, detailed information of electromagnetic relays, etc., can solve problems such as substandard sealing performance, and achieve the effects of improving safety in use, improving anti-adhesion ability, and prolonging service life.

Active Publication Date: 2020-08-25
XIAMEN HONGFA ELECTRIC POWER CONTROLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, the applicant has carried out experimental tests on various alloy materials, and found that the hardness of the anti-adhesive copper alloy is almost unchanged after high temperature, which can ensure the same torque before and after high temperature, but the sealing performance of the anti-adhesive copper alloy directly brazed on the ceramic cover but not up to standard

Method used

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  • A high temperature resistant relay and its production method
  • A high temperature resistant relay and its production method
  • A high temperature resistant relay and its production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1 , figure 2 A high temperature resistant relay is shown, which includes a magnetic circuit system (not shown in the figure) and a contact system; the contact system includes a ceramic cover assembly 1 and a contact assembly 2; the ceramic cover assembly 1 includes a frame piece 10 And the ceramic cover 11; the contact assembly 2 includes a moving contact part and a static contact part 21, and the static contact part 21 includes a static contact lead-out end 210 and a transition lead-out end 211.

[0039] The magnetic circuit system can convert electrical energy into mechanical energy to drive the part to move, so that the movable contact in the contact system is in contact with or separated from the static contact lead-out end 210, so as to achieve the function of opening or closing.

[0040] The transition lead-out 211 is provided with a through hole 2110 in the vertical direction of its mounting surface; one end of the static contact lead-out 210 ma...

Embodiment 2

[0056] A production method of a high temperature resistant relay, which comprises the following steps:

[0057] 1) Use machining or powder metallurgy to press the terminal of the static contact through the mold;

[0058] 2) Using machining or powder metallurgy to press the transition lead-out end through the mold;

[0059] 3) Assemble the static contact lead-out on the transition lead-out, and add solder on the axial contact surface of the transition lead-out and the static contact lead-out;

[0060] 4) Weld the transition lead-out end to the ceramic cover;

[0061] 5) Install a frame on the mouth of the ceramic cover to form a closed space in the ceramic cover;

[0062] 6) Take the static contact lead-out end, transition lead-out end, ceramic cover and frame piece as a whole, and put the whole body into a high-temperature furnace for brazing until the solder completely covers the contact corresponding to the static contact lead-out end and transition lead-out end surface, ...

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Abstract

The invention provides a high temperature-resistant relay and a production method and belongs to the circuit control equipment field. The high temperature-resistant relay includes a fixed contact lead-out end, a transition lead-out end and a ceramic cover; the fixed contact lead-out end is adopted as the static contact of the relay; the transition lead-out end is arranged between the fixed contact lead-out end and the ceramic cover; the fixed contact lead-out end is made of anti-sticking copper alloys, and therefore, the anti-sticking performance of the product can be improved, the hardness of the anti-sticking copper alloy material is almost unchanged after the anti-sticking copper alloy material is subjected to high-temperature brazing, and the consistency of the torque of the anti-sticking copper alloy material before and after the high-temperature brazing can be guaranteed; and the transition lead-out end is made of an iron-copper alloy material, and therefore, the qualified rate of the welding of the transition lead-out end and the ceramic cover can be ensured. With the high temperature-resistant relay and the production method provided by the technical schemes of the invention adopted, the sealing of ceramic brazing can be ensured, the air tightness and stability of the matching of the fixed contact lead-out end which has been subjected to the high-temperature brazing with an external connection component can be also improved, and thus, the use safety of the relay can be improved, and the service life of the relay can be prolonged.

Description

technical field [0001] The invention mainly relates to a direct current relay, and in particular, relates to a static assembly using a ceramic cover in the relay. Background technique [0002] DC relays are mainly used in the field of DC input and output represented by new energy vehicles, photovoltaic / wind power generation, etc. In the field of new energy vehicles, even if the user encounters abnormal working conditions (leading to a large current in the circuit) during use, it is necessary to avoid relay contact bonding as much as possible, so higher requirements are placed on the anti-sticking ability of the product. However, the lead-out materials of traditional DC relays are mostly iron-copper alloys. Iron-copper alloy materials have poor welding resistance. When a large current occurs in the circuit system, it is easy to cause contact bonding, resulting in system abnormalities and even affecting the personal safety of passengers. . [0003] Taking a relay sealed by c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H50/02H01H50/14H01H49/00
CPCH01H49/00H01H50/023H01H50/14
Inventor 张青年施生圣李星群
Owner XIAMEN HONGFA ELECTRIC POWER CONTROLS
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