CN117198817A - Manufacturing method and application of electromagnet release coil - Google Patents

Abstract

The invention discloses a manufacturing method and application of an electromagnet release coil with more stable performance and suitable for automated production. The technical solution adopted includes: a coil bobbin and an enameled wire wound on the coil bobbin. The head end and end of the enameled wire are respectively connected with lead wires. The two lead wires are respectively composed of the head end and the end of the enameled wire. The end of the twist-shaped wire core is wound into a twist-shaped wire core after being folded in half multiple times and an insulating sleeve is placed outside the twist-shaped wire core. The front end of the twist-shaped wire core is provided with a welding portion extending out of the insulating sleeve. , a solder layer is provided on the surface of the welding part.

Description

Manufacturing method and application of electromagnet tripper coil

Technical field

The invention belongs to the field of low-voltage electrical appliances, and in particular relates to an electromagnet release coil.

Background technique

The electromagnetic tripper is suitable for circuit protection. It will react when leakage occurs and protect the human body and circuits. The coil is the main component of the tripper. The structure of the traditional coil includes: a coil frame and an enameled wire wound on the coil frame. The head and end of the enameled wire are connected with lead wires respectively. The existing coil manufacturing method and coil performance have the following shortcomings: 1. The manufacturing method is manual and semi-automatic, which is expensive and the performance and quality consistency cannot be guaranteed; 2. It requires two weldings, and the welding points have the risk of virtual welding and desoldering. The welding tin tip can easily pierce the paint film of the main wire, which can easily cause the performance of the release to fail; 3. An external lead wire is required, which increases the cost and the quality risk caused by the lead wire itself.

Contents of the invention

The technical problem to be solved by the present invention is to provide a manufacturing method and application of an electromagnet release coil with more stable performance and suitable for automated production.

In order to solve the above problems, the technical solution adopted by the present invention includes: a coil bobbin and an enameled wire wound on the coil bobbin. The head end and end of the enameled wire are respectively connected with lead wires, and the two lead wires are respectively composed of The head end and end of the enameled wire are wound into a twist-shaped wire core after being folded several times and an insulating sleeve is placed outside the twist-shaped wire core. The front end of the twist-shaped wire core is provided with a protruding part. The welding part of the insulating sleeve is provided with a solder layer on the surface, and the manufacturing method is as follows:

Step 1: First, fold the first end of the enameled wire in half several times;

Step 2: Twist the multiple wires produced in Step 1 into a twist-shaped wire core;

Step 3: Put an insulating sleeve on the twisted wire core completed in step 2, and the front end of the twisted wire core extends out of the insulating sleeve to complete the production of the lead-out wire at the first end;

Step 4: Wind the enameled wire around the coil bobbin to complete the winding of the coil turns;

Step 5: Cut the end of the enameled wire, and then fold the end of the enameled wire in half several times;

Step 6: Twist the multiple wires completed in step 5 into a twist-shaped wire core;

Step 7: Put an insulating sleeve on the twisted wire core produced in step 6, and the front end of the twisted wire core extends out of the insulating sleeve to complete the production of the lead wire at the end;

Step 8: Wrap insulating tape around the coil frame and secure the two lead wires.

Step 9: Cut the front end of the twist-shaped wire core, and then dip it in tin to complete the production of the welding part.

The described electromagnet tripper coil manufacturing method is characterized in that: in step 1 and step 3, the insulating sleeve is a heat shrink tube or a Teflon tube or a plastic sleeve. When it is a heat shrink tube , it is necessary to heat it so that the heat shrinkable tube is tightly wrapped around the lead wire.

The described electromagnet tripper coil manufacturing method is characterized in that in step 1 and step 5, the number of folds of the head end 3 and the end of the enameled wire is 3-6 times.

The described electromagnetic release coil manufacturing method is characterized in that in step 2 and step 6, the number of times the multiple wires are twisted is 5-15 times.

The above-mentioned electromagnet tripper coil manufacturing method is characterized in that in step 8, the two lead-out wires are fixed on the same side of the coil frame through insulating tape.

An electromagnetic release, characterized in that: the electromagnetic release includes an electromagnetic release coil made by using the electromagnetic release coil manufacturing method described in any one of the above.

The advantages of the electromagnet tripper coil of the present invention are as follows: 1. A single enameled wire completes the main structure, avoiding the risk of tripper performance failure that may be caused by multiple weldings, and has better conductivity; 2. No external lead wires are needed. Reduce costs and reduce quality risks caused by leads; 3. All production processes can be completed with automated equipment, replacing manual production methods, which can greatly reduce costs (in manual production, labor costs account for approximately 35-45% of the total cost of the coil) .

The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

Description of the drawings

Figure 1 is a schematic structural diagram of the coil of the electromagnet release device of the present invention;

Figure 2 is a side view of the coil of the electromagnet release device of the present invention;

Figure 3 is a schematic diagram of the manufacturing process of the electromagnet release coil of the present invention.

Detailed ways

Example 1

As shown in Figures 1 to 3, the manufacturing method of the electromagnet release coil of the present invention. The electromagnet release coil includes a coil frame 1 and an enameled wire 2 wound on the coil frame 1. The enameled wire 2 The head end 3 and the end 4 are respectively connected with lead wires 5. The two lead-out wires 5 are respectively a twist-shaped wire core 10 wound by the first end 3 and the end 4 of the enameled wire 2 after being folded in half multiple times, and an insulating sleeve placed outside the twist-shaped wire core 10 It consists of 6 components. The front end of the twist-shaped wire core 10 is provided with a welding portion 7 extending out of the insulating sleeve 6. The surface of the welding portion 7 is provided with a solder layer 8. The manufacturing method is as follows:

Step 1: First, fold the first end of the enameled wire in half 3-5 times. The length of the folded line depends on the length of the lead wire, usually 1cm-5cm;

Step 2: Twist the multiple wires produced in step 1 to form a twist-shaped wire core. The number of twists is also determined according to actual needs. Usually, the wires are twisted 5-15 times. The more twists, the more twist-shaped wire cores will be formed. The tighter it is, but twisting it too many times will cause the wire to crack or break. The specific twisting method is: fix the two ends of the folded multiple wires, and then twist (rotate the multiple wires in the same direction) to form a multi-stranded twist-shaped wire core;

Step 3: Put an insulating sleeve on the twisted wire core completed in step 2, and the front end of the twisted wire core extends out of the insulating sleeve to complete the production of the lead-out wire at the first end;

Step 4: Wind the enameled wire around the coil bobbin to complete the winding of the coil turns;

Step 5: Cut off the end of the enameled wire, and then fold the end of the enameled wire in half the same number of times as the first end;

Step 6: Twist the multiple wires completed in step 5 into a twist-shaped wire core. The number and method of twisting are the same as in step 2;

Step 7: Put an insulating sleeve on the twisted wire core produced in step 6, and the front end of the twisted wire core extends out of the insulating sleeve to complete the production of the lead wire at the end;

Step 8: Wrap insulating tape around the coil frame and secure the two lead wires.

Step 9: Cut the front end of the twist-shaped wire core, and then dip it in tin to complete the production of the welding part.

Preferably, in step 1 and step 3, the insulating sleeve is a heat shrink tube or a Teflon tube or a plastic sleeve. When it is a heat shrink tube, it needs to be heated to make the heat shrink tube tightly wrapped. on the lead wires to achieve the best insulation and protection effect.

Preferably, in step 8, the two lead wires 5 are fixed on the same side of the coil bobbin 1 through insulating tape to facilitate wiring.

Using the above production method, all production processes can be completed with automated equipment. If the enameled wire is first wound on the coil bobbin and then the lead wire is made, the entire production process cannot be completed with automated equipment.

Example 2

As shown in Figures 1 to 2, there is an electromagnet release device of the present invention. The electromagnet release device includes an electromagnet release coil made by using the manufacturing method of the electromagnet release coil described in Embodiment 1. , the specific installation method of the electromagnet release coil on the electromagnet release is a well-known technology and will not be described again here.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention are included in the protection scope of the present invention. Inside.

Claims (7)

1. A manufacturing method of an electromagnet release coil is characterized by comprising the following steps: the electromagnetic release coil comprises a coil framework (1) and enameled wires (2) wound on the coil framework (1), lead-out wires (5) are respectively connected to the head end (3) and the tail end (4) of the enameled wires (2), the two lead-out wires (5) are respectively composed of a twist wire core (10) wound by folding the head end (3) and the tail end (4) of the enameled wires (2) for many times and an insulating sleeve (6) sleeved outside the twist wire core (10), a welding part (7) extending out of the insulating sleeve (6) is arranged at the front end of the twist wire core (10), and a soldering tin layer (8) is arranged on the surface of the welding part (7), and the manufacturing method is as follows:

step 1: folding the head end of the enameled wire for a plurality of times;

step 2: twisting and winding the plurality of wires manufactured in the step 1 into a twist-shaped wire core;

step 3: sleeving an insulating sleeve on the twist wire core manufactured in the step 2, and enabling the front end of the twist wire core to extend out of the insulating sleeve so as to finish manufacturing an outgoing line on the head end;

step 4: winding the enamelled wire on a coil framework to finish the winding of the turns of the coil;

step 5: cutting the tail end of the enameled wire, and folding the tail end of the enameled wire for multiple times;

step 6: twisting the plurality of wires manufactured in the step 5 to manufacture a twist wire core;

step 7: sleeving the twist wire core manufactured in the step 6 into an insulating sleeve, and enabling the front end of the twist wire core to extend out of the insulating sleeve so as to finish manufacturing an outgoing line at the tail end;

step 8: and winding an insulating adhesive tape outside the coil framework to fix the two outgoing lines.

2. Step 9: cutting the front end of the twist wire core, and then dipping tin to finish the manufacture of the welding part.

3. The method for manufacturing the coil of the electromagnetic release according to claim 1, wherein: in the step 1 and the step 3, the insulating sleeve is a heat shrinkage tube, a teflon tube or a plastic sleeve, and when the insulating sleeve is the heat shrinkage tube, the heat shrinkage tube needs to be heated, so that the heat shrinkage tube is tightly wrapped on the outgoing line.

4. The method for manufacturing the coil of the electromagnetic release according to claim 1, wherein: in the step 1 and the step 5, the head end (3) and the tail end (4) of the enameled wire (2) are folded for 3-6 times.

5. The method for manufacturing the coil of the electromagnetic release according to claim 1, wherein: in the step 2 and the step 6, the number of times of twisting the plurality of wires is 5-15 times.

6. The method for manufacturing the coil of the electromagnetic release according to claim 1, wherein: in step 8, two lead wires (5) are fixed on the same side of the coil bobbin (1) by an insulating tape.

7. An electromagnet release, characterized in that: the electromagnetic release comprises an electromagnetic release coil manufactured by the manufacturing method of the electromagnetic release coil according to any one of claims 1-6.