Leading-out end structure of magnetic latching relay

Abstract

The utility model discloses a leading-out terminal structure of a magnetic latching relay, the leading-out terminal structure of the magnetic latching relay comprises a base, and a movable spring terminal and a static spring terminal which are arranged on the base, the movable spring terminal is provided with a first leading-out terminal, the static spring terminal is provided with a second leading-out terminal, the first leading-out terminal is provided with a first bending part, and the second leading-out terminal is provided with a second bending part. And the first bending part is bent towards a direction far away from the second leading-out end and is provided with a first connecting part. According to the utility model, the fastening screw of the wiring terminal can pass through the positioning hole conveniently, the wiring terminal is fixedly connected with the first leading-out terminal and the second leading-out terminal on the premise of not damaging the first leading-out terminal and the second leading-out terminal, the supporting block is convenient to weld with a lead, and the limiting matching effect of the magnetic latching relay in the product is convenient to adjust; the electric gap between the first connecting part and the second connecting part is increased through the first bending part and the second bending part, so that the safety in use is ensured, and the product has the advantages of limiting function, good practicability, high safety and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, in particular to a lead-out terminal structure of a magnetic latching relay. Background Art

[0002] A magnetic latching relay is an electronic switch that switches a load circuit on and off. The magnetic latching relay includes a lead structure for electrically connecting to the load circuit.

[0003] The lead-out ends of the movable and static springs of the existing magnetic latching relays are usually connected to them by welding with wires, or by inserting wiring terminals on the lead-out ends of the movable and static springs to facilitate wire connection and disassembly. However, after inserting the wiring terminals, the distance between the lead-out ends of the movable and static springs will be reduced, resulting in a reduction in the electrical gap, which will cause circuit equipment to malfunction. At the same time, the wiring terminals need to be abutted against the lead-out ends of the movable and static springs by screws, which will cause damage to the plating on the surface of the lead-out ends of the movable and static springs. In the salt spray test, the salt spray will increase the resistance value of the lead-out ends of the movable and static springs, resulting in an increase in the contact resistance value between the wiring terminals and the lead-out ends of the movable and static springs, which will cause heating. Therefore, the applicant has made a beneficial design and found a solution to the above-mentioned problem. The technical solution to be introduced below is produced in this context. Summary of the invention

[0004] The purpose of the utility model is to overcome the shortcomings of the above-mentioned traditional magnetic latching relay design and provide a product with a limit function, good practicality and high safety.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A lead-out terminal structure of a magnetic holding relay comprises a base, and a movable spring terminal and a static spring terminal arranged on the base, wherein the movable spring terminal is provided with a first lead-out terminal, and the static spring terminal is provided with a second lead-out terminal, the first lead-out terminal is provided with a first bending portion, and the bending direction is away from the second lead-out terminal, the first bending portion is provided with a first connecting portion, and the side of the first connecting portion is provided with a plurality of equally spaced supporting blocks, the second lead-out terminal is provided with a second bending portion, and the bending direction is away from the first lead-out terminal, the second bending portion is provided with a second connecting portion, and the first connecting portion and the second connecting portion are provided with positioning holes.

[0007] Preferably, the dynamic spring terminal is provided with a dynamic spring piece, and the static spring terminal is provided with a static point.

[0008] Preferably, the movable spring piece is provided with a bending portion, the movable spring piece is provided with a moving point, and the movable spring piece is formed by stacking and pressing a plurality of movable spring pieces.

[0009] Preferably, the base is also provided with a coil assembly, an armature assembly, a sealing plate and a cover plate. The base is provided with a countersunk hole. The base is provided with an arc baffle plate, and is located between the armature assembly and the movable spring terminal. The arc baffle plate is provided with a blind hole. The sealing plate is provided with a through hole. The sealing plate is also provided with a convex column, and is inserted into the blind hole so that the sealing plate abuts against the coil assembly and is connected and fixed to the base. The cover plate is connected and fixed to the cover plate by a snap.

[0010] Preferably, the coil assembly includes a coil, a yoke, and an iron core. The yoke is arranged at both ends of the coil. The iron core passes through the yoke and the coil, and the yoke is connected and fixed to the coil by a riveting process.

[0011] Preferably, the armature assembly is inserted between the yokes, and convex shafts are provided on both sides of the armature assembly, one end of the convex shaft abuts the countersunk hole, and the other end of the convex shaft is inserted in the through hole. The armature assembly is provided with a push rod, which passes through the movable spring terminal and is connected to the movable spring sheet.

[0012] Preferably, the first connecting portion and the first bending portion are perpendicular to each other.

[0013] Beneficial effects:

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model facilitates the fastening screws of the wiring terminal to pass through the positioning hole, so that the wiring terminal is connected and fixed thereto without damaging the first lead-out end and the second lead-out end; the support block not only facilitates welding with the wire, but also plays a role in that when the magnetic holding relay is installed inside the product, the positioning hole is accurately coincident with the threaded hole of the electrical equipment inside the product through the mutual cooperation between the support block and the inside of the product, thereby improving the connection speed between the first connection part, the second connection part and the electrical equipment, and facilitating manufacturing and production; the electrical gap between the first connection and the second connection part is increased through the first bending part and the second bending part, thereby ensuring safety during use, so that the product has the advantages of limiting function, good practicality, high safety, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the lead-out terminal of a magnetic latching relay of the utility model;

[0017] Figure 2 It is a side cross-sectional structural diagram of a lead-out terminal structure of a magnetic latching relay of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the lead-out terminal structure of a magnetic latching relay of the utility model;

[0019] Figure 4It is a schematic diagram of the combined structure of a coil assembly and an armature assembly of a lead-out structure of a magnetic latching relay of the utility model;

[0020] Figure 5 This is a structural schematic diagram of a sealing plate of a lead-out terminal structure of a magnetic latching relay according to the utility model;

[0021] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0022] Reference numerals: 1, base; 2, dynamic spring terminal; 3, static spring terminal; 4, positioning hole; 5, coil assembly; 6, armature assembly; 7, sealing plate; 8, cover plate;

[0023] 11. Countersunk hole; 12. Arc baffle; 13. Blind hole;

[0024] 21. first lead-out terminal; 22. first bending portion; 23. first connecting portion; 24. supporting block; 25. movable spring;

[0025] 251, bending part; 252, moving point;

[0026] 31. second lead-out end; 32. second bending portion; 33. second connecting portion; 34. static point;

[0027] 51. coil; 52. yoke iron; 53. iron core;

[0028] 61. cam shaft; 62. push rod;

[0029] 71. Perforation; 72. Boss. DETAILED DESCRIPTION

[0030] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0032] Reference example Figures 1 to 5A lead-out terminal structure of a magnetic latching relay comprises a base 1, and a movable spring terminal 2 and a static spring terminal 3 arranged on the base 1, wherein the movable spring terminal 2 is provided with a first lead-out terminal 21, and the static spring terminal 3 is provided with a second lead-out terminal 31, characterized in that: the first lead-out terminal 21 is provided with a first bending portion 22, and the bending direction is away from the second lead-out terminal 31, the first bending portion 22 is provided with a first connecting portion 23, and the side of the first connecting portion 23 is provided with a plurality of equally spaced supporting blocks 24, the second lead-out terminal 31 is provided with a second bending portion 32, and the bending direction is away from the first lead-out terminal 21, the second bending portion 32 is provided with a second connecting portion 33, and the first connecting portion 23 and the second connecting portion 33 are provided with positioning holes 4, The positioning hole 4 facilitates the fastening screw of the terminal to pass through, and the terminal is connected and fixed thereto without damaging the first lead-out end 21 and the second lead-out end 31; the support block 24 not only facilitates welding with the wire, but also plays a role in that when the magnetic latching relay is installed inside the product, the positioning hole 4 accurately coincides with the threaded hole of the electrical equipment inside the product through the mutual cooperation between the support block 24 and the inside of the product, thereby improving the connection speed between the first connection part 23, the second connection part 33 and the electrical equipment, and facilitating manufacturing and production; the electrical gap between the first connection part 23 and the second connection part 33 is increased through the first bending part 22 and the second bending part 32, thereby ensuring safety during use;

[0033] It is worth mentioning that the movable spring terminal 2 is provided with a movable spring piece 25, and the static spring terminal 3 is provided with a static point 34. The movable spring piece 25 is used in conjunction with the push rod 62, and the static point 34 transmits the function of current;

[0034] It is worth mentioning that the moving spring 25 is provided with a bending portion 251, and the moving spring 25 is provided with a moving point 252. The moving spring 25 is formed by stacking and pressing a plurality of moving springs 25. The moving point 252 transmits the function of current. When the moving spring 25 is pushed forward by the push rod 62, the bending portion 251 stores energy. When the pushing force of the push rod 62 disappears, the elastic force is released to separate the moving point 252 from the static point 34. At the same time, when the moving point 252 and the static point 34 are seriously heated and sintered together, the energy storage capacity of the bending portion 251 is greatly increased by stacking a plurality of moving springs 25, and the moving point 252 is separated from the static point 34 to ensure the safety of the circuit.

[0035] It is worth mentioning that the base 1 is also provided with a coil assembly 5, an armature assembly 6, a sealing plate 7, and a cover plate 8. The base 1 is provided with a countersunk hole 11. The base 1 is provided with an arc baffle 12, and is located between the armature assembly 6 and the movable spring terminal 2. The arc baffle 12 is provided with a blind hole 13. The sealing plate 7 is provided with a through hole 71. The sealing plate 7 is also provided with a convex column 72, and is inserted into the blind hole 13, so that the sealing plate 7 abuts against the coil assembly 5 and is connected and fixed to the base 1. The cover plate 8 is connected and fixed to the cover plate 8 by a buckle. An arc is generated at the moment when the moving point 252 and the static point 34 are disconnected. High-temperature burning particles are sprayed at the moment when the arc is generated. The arc baffle 12 prevents the high-temperature burning particles from splashing to the armature assembly 6 and the coil assembly 5, causing the insulation layer of the coil 51 to be damaged and cause fracture. The armature assembly 6 rotates around the axis of the countersunk hole 11 and the through hole 71. The blind hole 13 connects and fixes the sealing plate 7 to the base 1. The cover plate 8 protects the components in the base 1.

[0036] It is worth mentioning that the coil assembly 5 includes a coil 51, a yoke 52, and an iron core 53. The yoke 52 is arranged at both ends of the coil 51. The iron core 53 passes through the yoke 52 and the coil 51, and the yoke 52 and the coil 51 are connected and fixed by a riveting process. The coil 51 is composed of an inner and outer coil 51. Each coil 51 has a magnetic field with opposite polarity. When one of the coils 51 is energized, it will generate a magnetic field and attract or repel the magnetism of the armature assembly 6, and push the moving spring 25 forward or backward through the push rod 62, so that the moving point 252 is separated from or in contact with the static point 34.

[0037] It is worth mentioning that the armature assembly 6 is inserted between the yokes 52, and convex shafts 61 are provided on both sides of the armature assembly 6, wherein one end of the convex shaft 61 abuts against the countersunk hole 11, and the other end of the convex shaft 61 is inserted in the through hole 71, and the armature assembly 6 is provided with a push rod 62, which passes through the movable spring terminal 2 and is connected to the movable spring piece 25, and the convex shaft 61 is used in conjunction with the through hole 71 and the countersunk hole 11. The armature assembly 6 is charged with energy so that the armature assembly 6 has a permanent magnetic force, thereby ensuring that when the coil 51 is not energized, the armature assembly 6 and the yoke 52 are attracted to each other, overcome the elastic force of the bending portion 251, and ensure the position of the movable spring piece 25 after the activity;

[0038] It is worth mentioning that the first connecting portion 23 and the first bending portion 22 are perpendicular to each other.

[0039] The above design scheme can enable the product to achieve the advantages of limiting function, good practicality and high safety.

[0040] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A lead-out terminal structure of a magnetic latching relay, comprising a base (1), and a movable spring terminal (2) and a static spring terminal (3) arranged on the base (1), wherein the movable spring terminal (2) is provided with a first lead-out terminal (21), and the static spring terminal (3) is provided with a second lead-out terminal (31), characterized in that: The first lead-out end (21) is provided with a first bending portion (22) which is bent away from the second lead-out end (31); the first bending portion (22) is provided with a first connecting portion (23); a side of the first connecting portion (23) is provided with a plurality of equally spaced supporting blocks (24); the second lead-out end (31) is provided with a second bending portion (32) which is bent away from the first lead-out end (21); the second bending portion (32) is provided with a second connecting portion (33); and the first connecting portion (23) and the second connecting portion (33) are provided with positioning holes (4).

2. The lead-out terminal structure of the magnetic latching relay according to claim 1, characterized in that: The movable spring terminal (2) is provided with a movable spring piece (25), and the static spring terminal (3) is provided with a static point (34).

3. The lead-out terminal structure of the magnetic latching relay according to claim 2, characterized in that: The movable spring piece (25) is provided with a bending portion (251), the movable spring piece (25) is provided with a moving point (252), and the movable spring piece (25) is formed by stacking and pressing a plurality of movable spring pieces (25).

4. The lead-out terminal structure of the magnetic latching relay according to claim 1, characterized in that: The base (1) is also provided with a coil assembly (5), an armature assembly (6), a sealing plate (7), and a cover plate (8); the base (1) is provided with a countersunk hole (11); the base (1) is provided with an arc-blocking plate (12) and is located between the armature assembly (6) and the movable spring terminal (2); the arc-blocking plate (12) is provided with a blind hole (13); the sealing plate (7) is provided with a through hole (71); the sealing plate (7) is also provided with a convex column (72) and is inserted into the blind hole (13) so that the sealing plate (7) abuts against the coil assembly (5) and is connected and fixed to the base (1); the cover plate (8) is connected and fixed to the cover plate (8) by a snap.

5. The lead-out terminal structure of the magnetic latching relay according to claim 4, characterized in that: The coil assembly (5) comprises a coil (51), a yoke (52), and an iron core (53); the yoke (52) is arranged at two ends of the coil (51); the iron core (53) passes through the yoke (52) and the coil (51); and the yoke (52) and the coil (51) are connected and fixed by a riveting process.

6. The lead-out terminal structure of the magnetic latching relay according to claim 5, characterized in that: The armature assembly (6) is inserted between the yokes (52), and convex shafts (61) are provided on both sides of the armature assembly (6), wherein one end of the convex shaft (61) abuts against the countersunk hole (11), and the other end of the convex shaft (61) is inserted into the through hole (71), and the armature assembly (6) is provided with a push rod (62), which passes through the movable spring terminal (2) and is connected to the movable spring sheet (25).

7. The lead-out terminal structure of the magnetic latching relay according to claim 1, characterized in that: The first connecting portion (23) is perpendicular to the first bending portion (22).

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