Small high-power electromagnetic relay with quick connection function

Abstract

The utility model discloses a small-sized high-power electromagnetic relay with a quick connection function, which is good in stability, convenient to assemble and low in temperature rise. According to the technical scheme, the contact system and the electromagnetic system are arranged on the bottom plate, the shell covers the bottom plate, and the electromagnetic system comprises a framework, an iron core arranged in the framework, a yoke arranged on the side face of the framework and an armature arranged at the front end of the framework. The rear end of the yoke is connected to the iron core, the front end of the yoke is connected to the armature, the rear end of the yoke is bent to form a wiring portion close to the contact system, and a quick connection terminal extending out of the upper end face of the shell is integrally formed at the upper end of the wiring portion.

Description

Technical Field

[0001] This utility model belongs to the field of relays, and in particular relates to a small high-power electromagnetic relay. Background Technology

[0002] A small, high-power electromagnetic relay is an electronic control device primarily used in automatic control circuits to control larger currents or voltages with smaller currents and voltages. To enable faster connection and disconnection between the relay and the circuit, improving system response speed and operational efficiency, quick-connect terminals are typically provided on electromagnetic relays. Traditional quick-connect terminals are usually riveted to the yoke, which suffers from cumbersome assembly, poor stability, and high temperature rise. Furthermore, traditional small, high-power electromagnetic relays also suffer from poor contact system stability and strength. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a small, high-power electromagnetic relay with quick-connect function that has good stability, is easy to assemble, has low temperature rise.

[0004] To solve the above problems, the technical solution adopted by this utility model includes: a base plate, a contact system and an electromagnetic system disposed on the base plate, and a shell covering the base plate. The electromagnetic system includes a frame, an iron core disposed within the frame, a yoke disposed on the side of the frame, and an armature disposed at the front end of the frame. The rear end of the yoke is connected to the iron core, and the front end is connected to the armature. The yoke is characterized in that: the rear end of the yoke is bent to form a wiring portion close to the contact system, and the upper end of the wiring portion is integrally formed with a quick-connect terminal extending from the upper surface of the shell.

[0005] The contact system includes a moving spring assembly and a stationary spring assembly. The moving spring assembly includes a moving spring and a moving contact located at the front end of the moving spring. The stationary spring assembly includes a stationary spring and a stationary contact located on the stationary spring. The lower end of the stationary spring is integrally formed with a lower terminal extending out of the base plate, and the upper end is integrally formed with an upper terminal extending out of the housing.

[0006] The movable spring has a front riveting surface and a rear riveting surface at a 90° angle. The front riveting surface is riveted to the armature, and the rear riveting surface is riveted to the yoke.

[0007] The rear riveting surface has overlapping rear reinforcing surfaces. The lower end of the rear riveting surface is integrally formed with a first wiring pin extending out of the base plate. The lower end of the rear reinforcing surface is integrally formed with a second wiring pin. The side of the first wiring pin is bent to form a third wiring pin that wraps around the second wiring pin.

[0008] The front end of the front riveting face is provided with an overlapping front reinforcing surface, and the moving contact is riveted together to the front reinforcing surface and the front riveting face.

[0009] The yoke has a positioning groove at its front end and a positioning protrusion that is embedded in the positioning groove at its rear end.

[0010] The frame has flanges at both ends, and the yoke is disposed between the flanges.

[0011] The lower end of the stationary spring is provided with a positioning step and barbs. The positioning step cooperates with the positioning groove at the bottom of the frame, and the barbs are inserted into the inner wall of the frame.

[0012] The advantages of this utility model of a small high-power electromagnetic relay with quick-connect function are as follows: 1. The quick-connect terminal and the yoke are integrally formed, which has the advantages of convenient assembly, good stability and low temperature rise; 2. The contact system is set with a reinforced structure (such as: the reinforcing surface and the wiring pin are superimposed, etc.), which greatly improves its strength and stability.

[0013] The present invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the small high-power electromagnetic relay of this utility model;

[0015] Figure 2 This is a cross-sectional view of the small high-power electromagnetic relay of this utility model;

[0016] Figure 3 This is an exploded view of the small high-power electromagnetic relay of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the yoke of this utility model;

[0018] Figure 5 This is a schematic diagram of the back structure of the moving spring assembly of this utility model;

[0019] Figure 6 This is a front structural schematic diagram of the moving spring assembly of this utility model;

[0020] Figure 7 This is a schematic diagram of the static reed assembly of this utility model. Detailed Implementation

[0021] Reference Figure 1-7As shown, the present invention discloses a small, high-power electromagnetic relay with quick-connect function, comprising a base plate 1, a contact system 2 and an electromagnetic system 3 disposed on the base plate 1, and a housing 4 covering the base plate 1. The electromagnetic system 3 includes a frame 5, an iron core 6 disposed within the frame 5, a yoke 7 disposed on the side of the frame 5, and an armature 8 disposed at the front end of the frame 5. The rear end of the yoke 7 is connected to the iron core 6, and the front end of the yoke 7 is connected to the armature 8. A coil is also wound around the frame 5. The rear end of the yoke 7 is bent to form a wiring portion 9 close to the contact system 2, and a quick-connect terminal 10 extending from the upper surface of the housing 4 is integrally formed on the upper end of the wiring portion 9.

[0022] Preferably, the contact system 2 includes a moving spring assembly 11 and a stationary spring assembly 12. The moving spring assembly 11 includes a moving spring 13 and a moving contact 14 disposed at the front end of the moving spring 13. The stationary spring assembly 12 includes a stationary spring 15 and a stationary contact 16 disposed on the stationary spring 15. The lower end of the stationary spring 15 is integrally formed with a lower terminal 17 extending out of the base plate 1, and the upper end of the stationary spring 15 is integrally formed with an upper terminal 18 extending out of the housing 4. Quick wiring is achieved through the upper terminal 18 and the lower terminal 17, and it also has advantages such as convenient assembly, good stability, and low temperature rise.

[0023] Preferably, the movable spring 13 has a front riveting surface 19 and a rear riveting surface 20 at a 90° angle. The front riveting surface 19 is riveted to the armature 8, and the rear riveting surface 20 is riveted to the yoke 7. The movable spring 13 is used to fix and reset the armature 8, which has the advantages of good stability and quick reset.

[0024] Preferably, the rear riveting surface 20 is provided with an overlapping rear reinforcing surface 21. The lower end of the rear riveting surface 20 is integrally formed with a first wiring pin 22 extending out of the base plate 1, and the lower end of the rear reinforcing surface 21 is integrally formed with a second wiring pin 23. The side of the first wiring pin 22 is bent to form a third wiring pin 24 that wraps around the second wiring pin 23. This improves the strength of the moving spring 13 and the wiring pins.

[0025] Preferably, the front end of the front riveting surface 19 is provided with an overlapping front reinforcing surface 25, and the moving contact 14 is riveted together to the front reinforcing surface 25 and the front riveting surface 19. This improves the strength of the moving spring 13 and the stability of the moving contact 14 during installation.

[0026] Preferably, the yoke 7 has a positioning groove 26 at its front end and the armature 8 has a positioning protrusion 27 that is embedded in the positioning groove 26 at its rear end. This improves the stability of the armature 8 assembly.

[0027] Preferably, the frame 5 has flanges 28 at both ends, and the yoke 7 is disposed between the flanges 28 to improve the stability of the yoke 7 assembly.

[0028] Preferably, the lower end of the stationary spring 15 is provided with a positioning step 29 and a barb 30. The positioning step 29 cooperates with the positioning groove 31 at the bottom of the frame 5, and the barb 30 pierces into the inner wall of the frame 5. This improves the stability of the assembly of the stationary spring 15.

[0029] The foregoing 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 small high-power electromagnetic relay with quick-connect function, comprising a base plate (1), a contact system (2) and an electromagnetic system (3) disposed on the base plate (1), and a housing (4) covering the base plate (1), wherein the electromagnetic system (3) comprises a frame (5), an iron core (6) disposed within the frame (5), a yoke (7) disposed on the side of the frame (5), and an armature (8) disposed at the front end of the frame (5), wherein the rear end of the yoke (7) is connected to the iron core (6) and the front end is connected to the armature (8), characterized in that: The rear end of the yoke (7) is bent to form a wiring portion (9) close to the contact system (2), and the upper end of the wiring portion (9) is integrally formed with a quick-connect terminal (10) extending from the upper surface of the housing (4).

2. The miniature high-power electromagnetic relay with quick-connect function according to claim 1, characterized in that: The contact system (2) includes a moving spring assembly (11) and a stationary spring assembly (12). The moving spring assembly (11) includes a moving spring (13) and a moving contact (14) located at the front end of the moving spring (13). The stationary spring assembly (12) includes a stationary spring (15) and a stationary contact (16) located on the stationary spring (15). The lower end of the stationary spring (15) is integrally formed with a lower terminal (17) extending out of the base plate (1) and the upper end is integrally formed with an upper terminal (18) extending out of the outer shell (4).

3. The small high-power electromagnetic relay with quick-connect function according to claim 2, characterized in that: The movable spring (13) has a front riveting surface (19) and a rear riveting surface (20) at a 90° angle. The front riveting surface (19) is riveted to the armature (8), and the rear riveting surface (20) is riveted to the yoke (7).

4. The miniature high-power electromagnetic relay with quick-connect function according to claim 3, characterized in that: The rear riveting surface (20) is provided with an overlapping rear reinforcing surface (21). The lower end of the rear riveting surface (20) is integrally formed with a first wiring pin (22) extending out of the base plate (1). The lower end of the rear reinforcing surface (21) is integrally formed with a second wiring pin (23). The side of the first wiring pin (22) is formed by bending to form a third wiring pin (24) that wraps around the second wiring pin (23).

5. The small high-power electromagnetic relay with quick-connect function according to claim 3, characterized in that: The front end of the front riveting surface (19) is provided with an overlapping front reinforcing surface (25), and the moving contact (14) is riveted together to the front reinforcing surface (25) and the front riveting surface (19).

6. The miniature high-power electromagnetic relay with quick-connect function according to claim 1, characterized in that: The yoke (7) has a positioning groove (26) at its front end and the armature (8) has a positioning protrusion (27) at its rear end that is embedded in the positioning groove (26).

7. The small high-power electromagnetic relay with quick-connect function according to claim 1, characterized in that: The frame (5) has flanges (28) at both ends, and the yoke (7) is located between the flanges (28).

8. The small high-power electromagnetic relay with quick-connect function according to claim 2, characterized in that: The lower end of the static spring (15) is provided with a positioning step (29) and a barb (30). The positioning step (29) cooperates with the positioning groove (31) at the bottom of the skeleton (5), and the barb (30) pierces into the inner wall of the skeleton (5).

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