A small high-power relay for smart home devices

Abstract

This utility model discloses a small high-power relay for smart home devices with improved safety and stability. The technical solution includes: a base, a contact system and an electromagnetic system disposed within the base, and a housing covering the base. The electromagnetic system includes a frame, an iron core disposed within the frame, a yoke connected to the iron core, and an armature resting on the yoke. The contact system includes a stationary contact support and a moving spring. A stationary contact is disposed on the stationary contact support, and a moving contact is disposed on the moving spring. The upper end of the armature is provided with a pushing member for driving the moving contact to contact or disconnect from the stationary contact. Isolation plates and protruding ribs abutting against the moving spring are provided on both sides of the front end of the pushing member.

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 for smart home devices is an electromagnetic switching device specifically designed to control high-power devices in smart homes (such as audio-visual equipment, lighting systems, curtain control, air conditioning control, etc.). It controls the switching of high-current loads through low-voltage signals. The 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 within the frame, a yoke connected to the iron core, and an armature attached to the yoke. The contact system includes a stationary contact support and a moving spring. A stationary contact is mounted on the stationary contact support, and a moving contact is mounted on the moving spring. A pushing element is located at the upper end of the armature to initiate contact or disconnection between the moving and stationary contacts. The disadvantages are: 1. The lack of a positioning structure between the pushing element and the moving spring results in poor stability when the moving spring is pushed; 2. The absence of arc-blocking plates on both sides of the stationary and moving contacts poses a safety hazard; 3. Overall stability is not ideal. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a small high-power relay for smart home devices with better security and stability.

[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 within the base, and a shell covering the base. The electromagnetic system includes a frame, an iron core disposed within the frame, a yoke connected to the iron core, and an armature overlapping the yoke. The contact system includes a stationary contact support and a moving spring. A stationary contact is disposed on the stationary contact support, and a moving contact is disposed on the moving spring. The upper end of the armature is provided with a pusher for driving the moving contact to contact or disconnect from the stationary contact. The front end of the pusher is provided with isolation plates on both sides and a protruding rib abutting against the moving spring. A positioning post is provided on the protruding rib, and a first positioning groove is provided on the moving spring to position and cooperate with the positioning post.

[0005] The pusher is riveted to the armature through a riveting groove at the rear end, and a positioning plate is provided at the front end of the riveting groove.

[0006] The base is provided with a positioning post, the top of the positioning post is provided with a relief groove in the middle, and the two ends of the relief groove are provided with positioning parts close to the edge of the riveting groove, and the lower end of the armature extends into the relief groove.

[0007] The positioning post has a slot on its side wall, and the yoke has a barb that connects to the slot on its side wall.

[0008] The base is provided with brackets on both sides, and the top of the brackets is provided with first slots on both sides. A reset spring is inserted through the first slot, and the reset spring is provided with a spring arm that acts on the armature.

[0009] The bracket has a second positioning groove in the middle of its front end, and the pusher has a positioning body in the middle that is positioned and cooperates with the second positioning groove.

[0010] The rear end of the riveting groove is provided with a tapered surface.

[0011] The second slots on both sides of the rear end of the bracket are into which the front end of the yoke is inserted.

[0012] The advantages of the small high-power relay for smart home devices of this utility model are as follows: 1. A positioning structure is provided between the pusher and the moving spring, which makes the moving spring stable when it is pushed; 2. Arc baffles are provided on both sides of the stationary contact and the moving contact, which makes it safer; 3. The installation of each component is realized through multiple positioning structures, which makes the stability better.

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

[0014] Figure 1 This is a cross-sectional view of the small high-power relay of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the small high-power relay of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the pusher component of this utility model;

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

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

[0019] Figure 6 This is a schematic diagram of the structure of the reset spring of this utility model. Detailed Implementation

[0020] Reference Figure 1-6As shown, the present invention discloses a small high-power relay for smart home devices, 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. The electromagnetic system 3 includes a frame 5, an iron core 6 disposed within the frame 5, a yoke 7 connected to the iron core 6, and an armature 8 mounted on the yoke 7. A coil is wound around the frame 5. Both the yoke 7 and the armature 8 are L-shaped. The contact system 2 includes a stationary contact support 9 and a moving spring 10. A stationary contact 11 is provided on the stationary contact support 9. A moving contact 12 is provided on the moving spring 10. The upper end of the armature 8 is provided with a pushing member 13 for driving the moving contact 12 to contact or disconnect from the stationary contact 11. Isolation plates 14 and protruding ribs 15 abutting against the moving spring 10 are provided on both sides of the front end of the pushing member 13, and positioning posts 16 are provided on the protruding ribs 15. A first positioning groove 17 is provided on the moving spring 10 to position and cooperate with the positioning posts 16. The positioning post 16 and the first positioning groove 17 work together to position the upper end of the moving spring 10, making the closing process more stable. The protruding rib 15 contacts the surface of the moving spring 10 to reduce friction between them, making the action more sensitive. At the same time, the isolation plate 14 can effectively isolate the moving contact 12 and the stationary contact 11 on both sides to prevent electric arc from breaking through the housing. During operation, when the electromagnetic system attracts the upper end of the armature 8, the armature 8 uses the yoke 7 as a fulcrum to push the pusher 13 forward, thereby driving the closing of the moving contact 12 and the stationary contact 11.

[0021] Preferably, the pusher 13 is riveted to the armature 8 via a riveting groove 18 at its rear end, and a positioning plate 19 is provided at the front end of the riveting groove 18. The positioning plate 19 is used to position the pusher 13 after it has swung into place, thereby improving stability.

[0022] Preferably, the base 1 is provided with a positioning post 16, the top center of the positioning post 16 is provided with a relief groove 20, and both ends of the relief groove 20 are provided with positioning portions 21 close to the edge of the riveting groove 18. The lower end of the armature 8 extends into the relief groove 20. The above structure provides support for the pusher 13, thereby improving its stability and preventing it from falling off the armature 8.

[0023] Preferably, the positioning post 16 has a slot 22 on its side wall, and the yoke 7 has a barb 23 on its side wall that connects to the slot 22, in order to improve the stability of the yoke 7 during installation.

[0024] Preferably, the base 1 has brackets 24 on both sides, and the top of the brackets 24 has first slots 25 on both sides. A reset spring 26 is inserted through the first slots 25. The reset spring 26 has anti-retraction teeth 32 to improve the stability of the installation. The reset spring 26 has a spring arm 27 that acts on the armature 8 to reset the armature 8.

[0025] Preferably, the support 24 has a second positioning groove 28 at the center of its front end, and the pusher 13 has a positioning body 29 in the middle that positions and cooperates with the second positioning groove 28. This further improves the stability of the pusher 13 after assembly.

[0026] Preferably, the rear end of the riveting groove 18 is provided with a tapered surface 30 to improve its strength. The second slots 31 on both sides of the rear end of the bracket 24 are into which the front end of the yoke 7 is inserted, further improving the stability of the yoke 7 assembly.

[0027] 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 for smart home devices, 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 within the frame (5), a yoke (7) connected to the iron core (6), and an armature (8) mounted on the yoke (7); wherein the contact system (2) comprises a stationary contact support (9) and a moving spring (10), wherein a stationary contact (11) is provided on the stationary contact support (9), and a moving contact (12) is provided on the moving spring (10); wherein a pusher (13) is provided at the upper end of the armature (8) for driving the moving contact (12) to contact or disconnect from the stationary contact (11), characterized in that: The pusher (13) has isolation plates (14) on both sides of its front end and protruding ribs (15) that abut against the moving spring (10), and the protruding ribs (15) have positioning posts (16), and the moving spring (10) has a first positioning groove (17) that positions and cooperates with the positioning posts (16).

2. The small high-power relay for smart home devices according to claim 1, characterized in that: The pusher (13) is riveted to the armature (8) through the riveting groove (18) at the rear end, and the front end of the riveting groove (18) is provided with a positioning plate (19).

3. The small high-power relay for smart home devices according to claim 2, characterized in that: The base (1) is provided with a positioning post (16), the top of the positioning post (16) is provided with a relief groove (20), and the two ends of the relief groove (20) are provided with positioning parts (21) close to the edge of the riveting groove (18), and the lower end of the armature (8) extends into the relief groove (20).

4. The small high-power relay for smart home devices according to claim 3, characterized in that: The positioning post (16) has a slot (22) on its side wall, and the yoke (7) has a barb (23) on its side wall that connects to the slot (22).

5. The small high-power relay for smart home devices according to claim 1, characterized in that: The base (1) has brackets (24) on both sides, and the brackets (24) have first slots (25) on both sides of the top. A reset spring (26) is inserted through the first slot (25), and the reset spring (26) has a spring arm (27) that acts on the armature (8).

6. The small high-power relay for smart home devices according to claim 5, characterized in that: The bracket (24) has a second positioning groove (28) in the middle of its front end, and the pusher (13) has a positioning body (29) in the middle that is positioned and cooperates with the second positioning groove (28).

7. The small high-power relay for smart home devices according to claim 2, characterized in that: The rear end of the riveting groove (18) is provided with a tapered surface (30).

8. The small high-power relay for smart home devices according to claim 5, characterized in that: The second slots (31) on both sides of the rear end of the bracket (24) are used to insert the front end of the yoke (7) into the second slots (31).

Images