Miniature high-power relay

Abstract

The utility model discloses a small-sized high-power relay which is good in stability and convenient to assemble. According to the technical scheme, the contact system and the electromagnetic system are arranged in the base, the shell covers the base, the electromagnetic system comprises a framework, an iron core arranged on the framework and an armature arranged at the end of the framework, the upper end of the armature is provided with a push piece used for driving the contact system to make contact or be disconnected, and the push piece is arranged on the base. The electromagnetic clutch is characterized in that a positioning groove is formed in the end of the framework, positioning guide rails are arranged on the two sides of the positioning groove, the armature is movably arranged in the positioning groove, guiding open grooves matched with the positioning guide rails are formed in the two sides of the armature, and a compressed spring is arranged in the middle of the bottom of the positioning groove.

Description

Technical Field

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

[0002] A small high-power relay is an electronic control device mainly used in automatic control circuits to control a larger current or voltage with a smaller current and voltage. Its structure includes a base, a contact system and an electromagnetic system housed within the base, and a housing enclosed in the base. The electromagnetic system includes a frame, an iron core mounted on the frame, and an armature at the end of the frame. A pusher plate at the upper end of the armature is used to engage or disengage the contact system. When the electromagnetic system is energized, the armature is attracted electromagnetically, causing the pusher plate to move, which in turn closes the contact system. The disadvantages are: poor stability of the connection between the armature, frame, and pusher plate, and cumbersome assembly. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a small, high-power relay with good stability and easy assembly.

[0004] To solve the above problems, the technical solution adopted by this utility model includes: a base, a contact system and an electromagnetic system disposed in the base, and a shell covering the base. The electromagnetic system includes a frame, an iron core disposed on the frame, and an armature disposed at the end of the frame. The upper end of the armature is provided with a pusher for driving the contact system to contact or disconnect. The feature is that: the end of the frame is provided with a positioning groove, and positioning guide rails are provided on both sides of the positioning groove. The armature is movably disposed in the positioning groove, and guide slots that cooperate with the positioning guide rails are provided on both sides. A compression spring is provided in the middle of the bottom of the positioning groove, and a spring piece is provided on the compression spring to apply pressure to the armature.

[0005] The top of the spring is bent to form a first positioning protrusion, and the bottom of the armature is provided with a positioning hole, into which the first positioning protrusion extends.

[0006] The upper end of the armature is provided with a second positioning protrusion, and the second positioning protrusion is provided with a hooking groove. The push plate is provided with a mounting groove, and a hook is provided in the mounting groove. The second positioning protrusion extends into the mounting groove, and the hook is hooked into the hooking groove.

[0007] The upper end of the iron core is provided with a first positioning step, and the push plate is provided with a second positioning step that cooperates with the first positioning step.

[0008] The upper end of the iron core is provided with a support platform that supports the bottom of the push plate.

[0009] The bottom of the compression spring is bent to form a plug-in portion, and the plug-in portion is provided with an elastic barb. The bottom of the frame is provided with a slot adapted to the plug-in portion and a hanging platform adapted to the elastic barb.

[0010] The positioning guide rail has a tapered guide surface at its front end.

[0011] The advantages of this small high-power relay are as follows: both ends of the armature are provided with positioning structures, which can greatly improve the stability of its installation, and the structure is more convenient to install.

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

[0013] Figure 1 This is a cross-sectional view of the small high-power relay of this utility model;

[0014] Figure 2 This is an exploded view of the small high-power relay of this utility model;

[0015] Figure 3 This is a schematic diagram of the compression spring of this utility model;

[0016] Figure 4 This is a schematic diagram of the skeleton of this utility model;

[0017] Figure 5 This is a schematic diagram of the armature structure of this utility model;

[0018] Figure 6 This is a schematic diagram of the pusher plate of this utility model. Detailed Implementation

[0019] Reference Figure 1-6As shown, the small high-power relay of this utility model includes a base 1, a contact system 2 and an electromagnetic system 3 disposed within the base 1, and a housing 4 covering the base 1. The electromagnetic system 3 includes a frame 5, an iron core 6 disposed on the frame 5, and an armature 7 disposed at the end of the frame 5. A coil is also wound on the iron core 6. The upper end of the armature 7 is provided with a pusher 8 for driving the contact system 2 to make or break contact. The contact system 2 includes at least a stationary contact and a moving contact. When closed, the pusher 8 drives the moving contact to make contact with the stationary contact. The end of the frame 5 is provided with a positioning groove 9, and positioning guide rails 10 are provided on both sides of the positioning groove 9. The armature 7 is movably disposed within the positioning groove 9, and guide slots 11 are provided on both sides of the armature 7 to cooperate with the positioning guide rails 10. Through the cooperation of the guide slots 11 and the positioning guide rails 10, the armature 7 can move normally while preventing it from shifting upward. A compression spring 12 is provided at the bottom center of the positioning groove 9. The compression spring 12 is provided with a spring piece 13 that applies pressure to the armature 7 for resetting and positioning the armature 7.

[0020] Preferably, the top of the spring piece 13 is bent to form a first positioning protrusion 14, and the bottom of the armature 7 is provided with a positioning hole 15, into which the first positioning protrusion 14 extends. This further improves the stability of the connection between the two.

[0021] Preferably, the upper end of the armature 7 is provided with a second positioning protrusion 16, the second positioning protrusion 16 is provided with a hooking groove 17, the push plate 8 is provided with a mounting groove 27, and a hook 18 is provided in the mounting groove 27. The second positioning protrusion 16 extends into the mounting groove 27, and the hook 18 is hooked into the hooking groove 17. During assembly, the end of the push plate 8 is simply inserted into the upper end of the armature 7 to facilitate assembly and ensure the stability of the connection between the two.

[0022] Preferably, the upper end of the iron core 6 is provided with a first positioning step 19, and the pusher plate 8 is provided with a second positioning step 20 that cooperates with the first positioning step 19. This is used for positioning the pusher plate 8 after it has moved into place, thereby improving stability.

[0023] Preferably, the upper end of the iron core 6 is provided with a support platform 21 that supports the bottom of the push plate 8, so that the movement of the push plate 8 is more stable and the resistance is less.

[0024] Preferably, the bottom of the compression spring 12 is bent to form a plug portion 22, and the plug portion 22 is provided with an elastic barb 23. The bottom of the frame 5 is provided with a slot 24 that adapts to the plug portion 22 and a mounting platform 25 that adapts to the elastic barb 23. During assembly: simply insert the plug portion 22 of the compression spring 12 into the slot 24 to facilitate assembly and prevent the compression spring 12 from falling off.

[0025] Preferably, the positioning guide rail 10 has a tapered guide surface 26 at its front end to facilitate the insertion of the armature 7.

[0026] 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 relay, comprising a base (1), a contact system (2) and an electromagnetic system (3) disposed within the base (1), and a housing (4) covering the base (1), wherein the electromagnetic system (3) comprises a frame (5), an iron core (6) disposed on the frame (5), and an armature (7) disposed at the end of the frame (5), wherein the upper end of the armature (7) is provided with a pusher (8) for driving the contact system (2) to contact or disconnect, characterized in that: The end of the frame (5) is provided with a positioning groove (9) and positioning guide rails (10) are provided on both sides of the positioning groove (9). The armature (7) is movably disposed in the positioning groove (9) and has guide slots (11) on both sides that cooperate with the positioning guide rails (10). A compression spring (12) is provided in the middle of the bottom of the positioning groove (9), and a spring piece (13) is provided on the compression spring (12) to apply pressure to the armature (7).

2. The small high-power relay according to claim 1, characterized in that: The top of the spring piece (13) is formed by bending to form a first positioning protrusion (14), and the bottom of the armature (7) is provided with a positioning hole (15), and the first positioning protrusion (14) extends into the positioning hole (15).

3. The small high-power relay according to claim 1, characterized in that: The upper end of the armature (7) is provided with a second positioning protrusion (16), and the second positioning protrusion (16) is provided with a hook groove (17). The push plate (8) is provided with a mounting groove (27), and the mounting groove (27) is provided with a hook (18). The second positioning protrusion (16) extends into the mounting groove (27), and the hook (18) is hooked onto the hook groove (17).

4. The small high-power relay according to claim 1, characterized in that: The upper end of the iron core (6) is provided with a first positioning step (19), and the push plate (8) is provided with a second positioning step (20) that is positioned and cooperates with the first positioning step (19).

5. The small high-power relay according to claim 4, characterized in that: The upper end of the iron core (6) is provided with a support platform (21) that supports the bottom of the push plate (8).

6. The small high-power relay according to claim 1, characterized in that: The bottom of the compression spring (12) is formed by bending to form a plug (22), and the plug (22) is provided with an elastic barb (23). The bottom of the frame (5) is provided with a slot (24) adapted to the plug (22) and a hanging platform (25) adapted to the elastic barb (23).

7. The small high-power relay according to claim 1, characterized in that: The positioning guide rail (10) has a tapered guide surface (26) at its front end.

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