Soldered magnetic latching relay movable contact and stamping die

Abstract

The utility model discloses a solder is not easy to fall off and overflow's with solder magnetic latching relay movable conducting piece and stamping die. Adopted technical scheme includes: movable conducting piece body, movable conducting piece body one end is equipped with riveting portion, and the other end is equipped with welding portion, be equipped with the soldering lug on the welding portion, the welding portion on movable conducting piece body is equipped with soldering groove, and the both sides of soldering groove are equipped with the converging groove that communicates with it, the bottom of converging groove is equipped with the recessed material pulling groove, the soldering lug is located in the soldering groove, and both ends embed in the material pulling groove.

Description

Technical Field

[0001] This utility model belongs to the field of electrical engineering, and in particular relates to a moving conductive sheet of a magnetic latching relay with solder. Background Technology

[0002] Magnetic latching relays are a new type of relay developed in recent years, and also a type of automatic switch. Like other electromagnetic relays, they automatically connect and disconnect circuits. However, unlike other electromagnetic relays, the normally closed or normally open state of a magnetic latching relay relies entirely on the action of a permanent magnet, and its switching state is triggered by a pulse signal of a certain width. During connection, the magnetic latching relay typically uses a moving conductive plate for circuit connection, with a soldering end at the end of the moving conductive plate. To facilitate soldering or achieve automated soldering, solder is usually pre-applied to the soldering end. The solder is usually made of thin tin sheet and is fixed to the surface of the connection by stamping. The disadvantages are: 1. During transportation, the moving conductive plate is susceptible to solder detachment due to impacts or vibrations; 2. After soldering, the solder may not firmly adhere to the surface of the moving conductive plate; 3. Excess liquefied solder can easily overflow, affecting the quality of the moving conductive plate. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a conductive sheet for a magnetic latching relay with solder that is not easy to fall off or overflow, and a stamping die.

[0004] To solve the above problems, the technical solution adopted by this utility model includes: a movable conductive sheet body, one end of which is provided with a riveting part and the other end with a welding part, a welding piece is provided on the welding part, a solder groove is provided on the welding part of the movable conductive sheet body, and a converging groove communicating with the solder groove is provided on both sides of the solder groove, a concave pulling groove is provided at the bottom of the converging groove, and the welding piece is disposed in the solder groove and embedded in the pulling groove at both ends.

[0005] The bottom of the solder tank has a convex surface that smoothly transitions with the manifold.

[0006] The cross-section of the manifold is V-shaped.

[0007] The riveting part of the moving conductive sheet body is provided with a set of riveting posts.

[0008] A stamping die for stamping the moving conductive sheet of the aforementioned solder-coated magnetic latching relay includes a base and a stamping core assembly disposed above the base. The top of the base has a support surface for placing the moving conductive sheet body. The stamping core assembly includes a central stamping core and side stamping cores disposed on both sides of the central stamping core. The bottom of the central stamping core has a central stamping surface adapted to the solder groove, and the bottom of the side stamping cores has a side stamping surface adapted to the manifold.

[0009] The intermediate stamping surface is concave.

[0010] The cross-section of the side stamping surface is V-shaped.

[0011] The advantages of the conductive sheet of the magnetic latching relay with solder and the stamping die of this utility model are as follows: After stamping, the solder sheet can be embedded in the pull groove of the manifold. Since the pull groove is concave inward, the adhesion of the solder sheet can be improved, thereby preventing it from falling off after installation or welding.

[0012] The present invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the moving conductive sheet of the relay of this utility model; Figure 2 This is a top view of the moving conductive piece of the relay of this utility model; Figure 3 This is a structural schematic diagram of the solder tank and manifold of this utility model; Figure 4 This is a schematic diagram showing the connection between the solder pad, the solder tank, and the manifold of this utility model; Figure 5 This is a schematic diagram of the structure of the stamping die of this utility model; Figure 6 This is a partial enlarged view of the stamping die of this utility model. Detailed Implementation Example 1:

[0014] Reference Figure 1-4 As shown, the movable conductive sheet of the solder-coated magnetic latching relay of this utility model includes a movable conductive sheet body 1. One end of the movable conductive sheet body 1 is provided with a riveting part 2, and the other end of the movable conductive sheet body 1 is provided with a welding part 3. A solder sheet 4 is provided on the welding part 3. A solder groove 5 is provided on the welding part 3 of the movable conductive sheet body 1, and a manifold 6 communicating with the solder groove 5 is provided on both sides of the solder groove 5. A concave pull groove 7 is provided at the bottom of the manifold 6. The solder sheet 4 is disposed in the solder groove 5, and both ends of the solder sheet 4 are embedded in the pull groove 7.

[0015] Preferably, the bottom of the solder tank 5 has a convex surface 8 that smoothly transitions with the manifold 6. When the solder sheet 4 in the solder tank 5 is liquefied, it can flow more effectively into the manifold 6 to further prevent overflow.

[0016] Preferably, the cross-section of the manifold 6 is V-shaped. The V-shaped structure makes it easier for the mold to stamp and demold the welding piece 4.

[0017] Preferably, the riveting portion 2 of the moving conductive sheet body 1 is provided with a set of riveting posts 9. The riveting posts 9 facilitate riveting with the moving contact spring of the magnetic latching relay. Example 2:

[0018] Reference Figures 5-6 As shown, the stamping die of this utility model is used for stamping the moving conductive sheet of the solder-coated magnetic latching relay of Embodiment 1. It includes a base 10 and a stamping core assembly 11 disposed above the base 10. The base 10 is mounted on the lower template of the stamping die, and the stamping core assembly 11 is mounted on the upper template of the stamping die.

[0019] The base 10 has a support surface 12 on its top for placing the moving conductive sheet body 1. The stamped core assembly 11 includes a central stamped core 13 and side stamped cores 14 on both sides of the central stamped core 13. The bottom of the central stamped core 13 has a central stamping surface 15 adapted to the solder groove 5, and the bottom of the side stamped cores 14 has a side stamping surface 16 adapted to the manifold 6. During stamping, the solder sheet 4 is first placed on the support surface 12 of the base 10, and then the stamped core assembly 11 is pressed downward through the upper template to fix the solder sheet 4 in the solder groove 5 and the manifold 6.

[0020] Preferably, the intermediate stamping surface 15 is concave. The cross-section of the side stamping surface 16 is V-shaped.

[0021] As stated above, this is not intended to limit the present invention in any way. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed structure and technical content to create equivalent embodiments without departing from the scope of the present invention. However, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A movable conductive sheet for a solder-coated magnetic latching relay, comprising a movable conductive sheet body (1), wherein one end of the movable conductive sheet body (1) is provided with a riveting portion (2) and the other end is provided with a welding portion (3), wherein a solder sheet (4) is provided on the welding portion (3), characterized in that: The welding part (3) of the moving conductive sheet body (1) is provided with a solder groove (5), and the solder groove (5) is provided with a converging groove (6) communicating with it on both sides. The bottom of the converging groove (6) is provided with a concave pulling groove (7). The solder sheet (4) is provided in the solder groove (5) and its two ends are embedded in the pulling groove (7).

2. The moving conductive piece of the solder-coated magnetic latching relay according to claim 1, characterized in that: The bottom of the solder tank (5) is provided with a convex surface (8) that smoothly transitions with the manifold (6).

3. The moving conductive piece of the solder-coated magnetic latching relay according to claim 1, characterized in that: The cross-section of the manifold (6) is V-shaped.

4. The moving conductive piece of the solder-coated magnetic latching relay according to claim 1, characterized in that: A set of rivet posts (9) are provided on the riveting part (2) of the moving conductive sheet body (1).

5. A stamping die for stamping the moving conductive sheet of a solder-coated magnetic latching relay as described in any one of claims 1-4, characterized in that: The assembly includes a base (10) and a stamped core assembly (11) disposed above the base (10). The base (10) has a support surface (12) on its top for placing the moving conductive sheet body (1). The stamped core assembly (11) includes a middle stamped core (13) and side stamped cores (14) disposed on both sides of the middle stamped core (13). The bottom of the middle stamped core (13) is provided with a middle stamped surface (15) adapted to the solder groove (5), and the bottom of the side stamped core (14) is provided with a side stamped surface (16) adapted to the manifold (6).

6. The stamping die according to claim 5, characterized in that: The intermediate stamping surface (15) is concave.

7. The stamping die according to claim 5, characterized in that: The cross-section of the side stamping surface (16) is V-shaped.

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