Relay coil assembly capable of preventing wire breakage

Abstract

The utility model discloses an anti-wire-breaking relay coil assembly, which relates to the technical field of relays and comprises a reel, a group of opposite connecting grooves are arranged on two sides in the reel, terminal pins are arranged in the centers of the connecting grooves, an enameled wire is wound on the outer wall of the reel and is positioned in the center of the reel, and the terminal pins are arranged in the connecting grooves. The outer walls of the two ends of the enamelled wire are respectively connected with the top ends of the outer walls of the plurality of terminal pins in a winding mode, and the plurality of terminal pins are located on the two sides inside the winding frame. The soldering tin protrusions and the tin blocking protrusions are arranged on the tops of the terminal pins at the same time, so that the situation that the enamelled wire wound on the tops of the terminal pins is covered by soldering tin due to the fact that the soldering tin is too deep can be effectively prevented; therefore, a single led-out wire can be prevented from being in a rigid state due to excessive welding, single rigid wires are reduced, and the risk that the enameled wire is broken when being pulled is reduced.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, specifically a relay coil assembly for preventing wire breakage. Background Technology

[0002] Automotive relays are widely used as key actuators in automotive switches. The vehicle environment is a dynamic usage scenario, and relays in different locations are subjected to different vibration conditions. In particular, relays installed on the engine vibrate continuously as the engine runs, and the relay needs to continuously energize the coil when it is working.

[0003] Automotive relays consume a lot of power during daily use, which causes the coil to heat up significantly. Different materials have different coefficients of thermal expansion, and over time, they are prone to loosening. Furthermore, vibration can cause the coil to rotate, pulling on the start and end wires and causing them to break, resulting in relay failure and the inability to perform the functions of electrical appliances. In view of this, we provide a relay coil assembly that prevents wire breakage. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a relay coil assembly that prevents wire breakage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a relay coil assembly for preventing wire breakage, including a winding frame, with a set of opposing connecting slots on both sides inside the winding frame, and a lead wire foot set in the center of the connecting slot. Enamelled wire is wound around the outer wall of the winding frame, and the enamelled wire is located in the center inside the winding frame. The outer walls of both ends of the enamelled wire are respectively wound and connected to the top of the outer walls of multiple lead wire feet, and the multiple lead wire feet are all located on both sides inside the winding frame.

[0006] As mentioned above, the bottom of the outer wall of the lead pin is provided with barbs, and one side of the outer wall of the lead pin is fixedly connected to the inner wall of the connecting groove through the barbs.

[0007] As described above, a solder protrusion is provided at the top of the outer wall of the lead pin, and a solder blocking protrusion is also provided at the top of the outer wall of the lead pin, with the solder protrusion located at the top of the solder blocking protrusion.

[0008] As mentioned above, one end of the enameled wire is wound around the solder bump and the solder-blocking bump, and the enameled wire is mainly composed of copper.

[0009] As mentioned above, the outer wall of the winding frame is provided with a planar step, and the planar surface of the winding frame corresponds to the enameled wire.

[0010] As described above, the enameled wire is wound around the center of the outer wall of the winding frame, and the enameled wire is in close contact with the planar step provided on the outer wall of the winding frame.

[0011] Compared with the prior art, this anti-breakage relay coil assembly has the following advantages:

[0012] I. By adding a planar step to the outer wall of the cylindrical body at the center of the winding frame, the enameled wire and the outer wall of the winding frame can form an interlocking structure after winding, so that even if deformation occurs due to thermal expansion and contraction, it is not easy to loosen.

[0013] Second, by simultaneously providing solder protrusions and solder-blocking protrusions at the top of the lead pin, this utility model can effectively prevent excessive soldering, which would cause the enameled wire wrapped around the top of the lead pin to be covered by solder. This can prevent a single lead wire from becoming rigid due to excessive soldering, thereby reducing the occurrence of single rigid wires and thus reducing the risk of the enameled wire breaking when pulled.

[0014] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the exploded three-dimensional structure of this utility model;

[0017] Figure 3 This is a partial three-dimensional structural diagram showing the multiple leads of this utility model;

[0018] Figure 4 This is a partial three-dimensional structural diagram of the winding frame and planar steps of this utility model.

[0019] In the diagram: 1. Winding frame; 101. Planar step; 2. Connecting groove; 3. Lead pin; 301. Solder protrusion; 302. Solder blocking protrusion; 4. Enamelled wire. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1-4As shown, this utility model provides a technical solution: a relay coil assembly for preventing wire breakage, including a winding frame 1. A set of opposing connecting slots 2 are provided on both sides inside the winding frame 1, and a lead wire 3 is provided in the center of the connecting slot 2. Enamelled wire 4 is wound on the outer wall of the winding frame 1, and the enamelled wire 4 is located in the center inside the winding frame 1. The outer walls of both ends of the enamelled wire 4 are respectively wound and connected to the top of the outer walls of multiple lead wires 3, and the multiple lead wires 3 are all located on both sides inside the winding frame 1.

[0022] By adding a flat step 101 to the outer wall of the cylindrical body at the center of the winding frame 1, the enameled wire 4 and the outer wall of the winding frame 1 can form an interlocking structure after winding. By simultaneously setting a solder protrusion 301 and a solder blocking protrusion 302 on the top of the lead pin 3, it can effectively prevent the solder from being too deep, causing the enameled wire 4 wound on the top of the lead pin 3 to be covered by solder. This can prevent a single lead wire from becoming rigid due to excessive soldering, thereby reducing the occurrence of a single rigid wire and reducing the risk of the enameled wire 4 breaking when pulled.

[0023] like Figure 3 As shown, the bottom of the outer wall of the lead pin 3 is provided with barbs, and one side of the outer wall of the lead pin 3 is fixedly connected to the inner wall of the connecting groove 2 through the barbs. By providing barbs at the bottom of the lead pin 3, the possibility of the lead pin 3 falling out of the connecting groove 2 due to vibration and other outer wall factors can be effectively reduced.

[0024] like Figure 1 and Figure 3 As shown, a solder protrusion 301 is provided at the top of the outer wall of the lead 3, and a solder blocking protrusion 302 is also provided at the top of the outer wall of the lead 3. The solder protrusion 301 is located at the top of the solder blocking protrusion 302. One end of the enameled wire 4 is wound around the solder protrusion 301 and the solder blocking protrusion 302. The enameled wire 4 is mainly composed of copper. By winding one end of the enameled wire 4 around the solder protrusion 301 and the solder blocking protrusion 302, the position of the solder winding can be defined. At the same time, it can also prevent the solder from being too deep and avoid the winding enameled wire 4 from being covered by solder.

[0025] like Figure 1 , Figure 2 and Figure 4 As shown, a planar step 101 is provided on the outer wall of the winding section of the winding frame 1, and the planar surface of the winding section of the winding frame 1 corresponds to the enameled wire 4. The enameled wire 4 is wound around the center of the outer wall of the winding frame 1, and the enameled wire 4 is tightly fitted with the planar step 101 provided on the outer wall of the winding frame 1. By adding a planar step 101 to the outer wall of the circular column in the center of the winding frame 1, the enameled wire 4 and the two ends of the winding frame 1 can form an interlocking structure after winding.

[0026] Working principle: By setting barbs at the bottom of the lead pin 3, the possibility of the lead pin 3 falling off from the inside of the connecting groove 2 due to external factors such as vibration can be effectively reduced. By wrapping one end of the enameled wire 4 around the solder protrusion 301 and the solder blocking protrusion 302, the position of the solder winding can be marked. At the same time, it can also prevent the solder from being too deep and avoid the winding enameled wire 4 from being covered by solder. By adding a flat step 101 to the outer wall of the circular column in the center of the winding frame 1, the enameled wire 4 and the winding frame 1 of this structure can form an interlocking structure after winding.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A relay coil assembly for preventing wire breakage, comprising a winding frame (1), characterized in that: The winding frame (1) has a set of opposite connecting slots (2) on both sides inside, and a lead wire foot (3) is provided in the center of the connecting slot (2). The outer wall of the winding frame (1) is wrapped with enameled wire (4), and the enameled wire (4) is located in the center of the winding frame (1). The outer walls of both ends of the enameled wire (4) are respectively wound and connected to the top of the outer walls of multiple lead wire feet (3), and the multiple lead wire feet (3) are located on both sides inside the winding frame (1).

2. The relay coil assembly for preventing wire breakage according to claim 1, characterized in that: The bottom of the outer wall of the lead pin (3) is provided with barbs, and one side of the outer wall of the lead pin (3) is fixedly connected to the inner wall of the connecting groove (2) through the barbs.

3. The relay coil assembly for preventing wire breakage according to claim 2, characterized in that: The top of the outer wall of the lead (3) is provided with a solder protrusion (301) and a solder blocking protrusion (302) is provided at the top of the outer wall of the lead (3). The solder protrusion (301) is located on top of the solder blocking protrusion (302).

4. The relay coil assembly for preventing wire breakage according to claim 3, characterized in that: One end of the enameled wire (4) is wound around the solder bump (301) and the solder blocking bump (302), and the enameled wire (4) is mainly made of copper.

5. A relay coil assembly for preventing wire breakage according to claim 1, characterized in that: The outer wall of the winding frame (1) is provided with a planar step (101), and the planar surface of the winding frame (1) corresponds to the enameled wire (4).

6. A relay coil assembly for preventing wire breakage according to claim 5, characterized in that: The enameled wire (4) is wound around the center of the outer wall of the winding frame (1), and the enameled wire (4) is closely attached to the planar step (101) provided on the outer wall of the winding frame (1).

Images