A relay

Abstract

The present invention discloses a relay, comprising a main body, a rotating assembly, a first movable contact piece, a first stationary contact piece, and a first electromagnetic drive assembly. The rotating assembly is rotatably mounted on the main body, one end of the first movable contact piece is transmission-connected to the rotating assembly, and the other end is connected to the main body. The first stationary contact piece is mounted on the main body, and the first electromagnetic drive assembly is mounted on the main body. The first electromagnetic drive assembly and the rotating assembly are interlocked. When the first electromagnetic drive assembly is energized, it can drive the rotating assembly to rotate relative to the main body, thereby driving the first movable contact piece to move toward or away from the first stationary contact piece, thereby causing the first movable contact piece to contact or separate from the first stationary contact piece. When the first movable contact piece contacts the first stationary contact piece, the relay is in an energized state. When the first movable contact piece separates from the first stationary contact piece, the relay is in an energized state. The relay can control the energization of the relay according to the energization of the first electromagnetic drive assembly, thereby reducing power consumption.

Description

Technical Field

[0001] The present invention relates to the field of electromagnetic technology, and in particular to a relay. Background Art

[0002] A relay is an electronic control device commonly used in automatic control circuits. It effectively acts as an "automatic switch" that uses a smaller current to control a larger one, providing functions such as automatic regulation, safety protection, and circuit switching. In existing technology, an electromagnet constantly engages a moving contact with a stationary contact to keep the relay energized. However, this constant energization of the electromagnet increases power consumption. Summary of the Invention

[0003] Based on this, it is necessary to provide a relay to solve the technical problem in the prior art that the relay is in an energized state for a long time and the electromagnet is always energized, which increases power consumption.

[0004] The present invention discloses a relay, comprising:

[0005] main body;

[0006] A rotating assembly, the rotating assembly being rotatably disposed on the main body;

[0007] a first movable contact piece, one end of which is transmission-connected to the rotating assembly and the other end of which is connected to the main body;

[0008] a first stationary contact piece, the first stationary contact piece being arranged on the main body; and

[0009] A first electromagnetic drive component is provided on the main body, and the first electromagnetic drive component is linked with the rotating component. When the first electromagnetic drive component is energized, it can drive the rotating component to rotate relative to the main body, so as to drive the first movable contact piece to move toward or away from the first static contact piece, thereby making the first movable contact piece contact or separate from the first static contact piece. When the first movable contact piece is in contact with the first static contact piece, the relay is in an energized state; when the first movable contact piece is separated from the first static contact piece, the relay is in an energized state.

[0010] Furthermore, the first electromagnetic drive component includes a first coil and a first magnetic core, the first coil is arranged on the main body, and the first magnetic core is inserted into the first coil. When the first coil is energized, it can generate a magnetic field to drive the first magnetic core to move toward the direction close to the rotating component, so that the first magnetic core supports and drives the rotating component to rotate relative to the main body, and then drives the first moving contact piece to move toward or away from the first static contact piece, so that the first moving contact piece contacts or separates from the first static contact piece.

[0011] Furthermore, the relay includes a first elastic member, and the first elastic member elastically abuts against the first magnetic core.

[0012] Furthermore, the rotating component includes a rotating member and a first operating member, the rotating member is rotatably arranged on the main body, the rotating member is transmission-connected to the first moving contact piece, and the first electromagnetic drive component is linked to the first operating member to drive the first moving contact piece to move toward or away from the first static contact piece.

[0013] Furthermore, the relay includes a second electromagnetic drive component, which is arranged on the main body. The second electromagnetic drive component is linked to the rotating component. When the second electromagnetic drive component is energized, it can drive the rotating component to rotate relative to the main body, so as to drive the first moving contact piece to move toward or away from the first static contact piece, thereby making the first moving contact piece contact or separate from the first static contact piece.

[0014] Furthermore, the second electromagnetic drive component includes a second coil and a second magnetic core, the second coil is arranged on the main body, and the second magnetic core is inserted into the second coil. When the second coil is energized, it can generate a magnetic field to drive the second magnetic core to move toward the direction close to the rotating component, so that the second magnetic core supports and drives the rotating component to rotate relative to the main body, thereby driving the first moving contact piece to move toward or away from the first static contact piece, thereby making the first moving contact piece contact or separate from the first static contact piece.

[0015] Furthermore, the first moving contact piece is made of elastic material, and is provided with a protrusion. The rotating component is provided with a curved surface combined with the protrusion. The rotating component rotates relative to the main body so that the protrusion slides along the curved surface. The curved surface can drive the first moving contact piece to move toward or away from the first static contact piece, thereby making the first moving contact piece contact or separate from the first static contact piece under its own elastic force. At the same time, the curved surface can keep the protrusion in the position it is in at the time without changing.

[0016] Furthermore, the relay includes a second elastic member, one end of the second elastic member is connected to the rotating assembly, and the other end of the second elastic member is connected to the first movable contact piece. The rotating assembly rotates relative to the main body to drive the first movable contact piece to move toward the first static contact piece, thereby making the first movable contact piece contact with the first static contact piece and move away from the first static contact piece under the elastic force of the second elastic member. The second elastic member is used to provide an elastic force to the first movable contact piece away from the first static contact piece and to keep the position of the first movable contact piece unchanged.

[0017] Furthermore, the relay also includes a wiring terminal, one end of which is fixedly connected to the first moving contact piece, the other end of which is arranged outside the main body and connected to an external electrical appliance, and the first static contact piece is arranged outside the main body and connected to the external electrical appliance at one end away from the first moving contact piece.

[0018] Furthermore, the relay further includes a support frame, a second stationary contact piece, and a second movable contact piece. The support frame is connected to the main body and can swing relative to the main body. The second movable contact piece can be moved toward or away from the second stationary contact piece under the drive of the rotating assembly, thereby causing the second movable contact piece to contact or separate from the second stationary contact piece.

[0019] The support frame is connected to the second elastic member, the first movable contact piece and the second movable contact piece respectively. The support frame is made of insulating material to insulate the first movable contact piece and the second movable contact piece.

[0020] The present invention discloses a relay in which a rotating assembly is rotatably mounted on a main body, one end of a first moving contact piece is transmission-connected to the rotating assembly, and the other end is connected to the main body, a first static contact piece is mounted on the main body, and a first electromagnetic drive assembly is mounted on the main body. When the first electromagnetic drive assembly is energized, it can drive the rotating assembly to rotate relative to the main body, thereby driving the first moving contact piece to move toward or away from the first static contact piece, thereby causing the first moving contact piece to contact or separate from the first static contact piece. When the first moving contact piece contacts the first static contact piece, the relay is in an energized state, and when the first moving contact piece separates from the first static contact piece, the relay is in an energized state. Compared to the prior art method of constantly attracting the moving contact piece and the static contact piece by an electromagnet, causing the relay to be in an energized state for a long time, thereby increasing power consumption, the relay protected by the present invention can control the energized state of the relay according to the energized state of the first electromagnetic drive assembly, thereby reducing power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 This is an exploded view of the relay in Example 1 of the present invention;

[0023] Figure 2 For the present invention Figure 1 Cross-sectional view at AA in the middle;

[0024] Figure 3 Schematic diagram of the structure of the relay in embodiment 1 of the present invention;

[0025] Figure 4 For the present invention Figure 3 Enlarged view of point C in the middle;

[0026] Figure 5 Schematic diagram of the structure of the first elastic member and the first magnetic core in Example 1 of the present invention;

[0027] Figure 6 Schematic diagram of the structure of the relay in embodiment 2 of the present invention;

[0028] Figure 7 For the present invention Figure 6 Cross-sectional view at the middle BB;

[0029] Figure 8 2 is another structural diagram of the relay in embodiment 2 of the present invention;

[0030] Figure 9 Schematic diagram of the structure of the relay in embodiment 3 of the present invention;

[0031] Figure 10 This is another structural diagram of the relay in Example 3 of the present invention.

[0032] Main components:

[0033] 100, main body; 200, rotating component; 210, first operating member; 220, second operating member; 230, rotating member; 240, curved surface; 310, first moving contact piece; 311, raised portion; 320, second moving contact piece; 410, first static contact piece; 420, second static contact piece; 500, first electromagnetic drive component; 510, first coil; 520, second coil; 600, second electromagnetic drive component; 610, first magnetic core; 620, second magnetic core; 710, first elastic member; 720, second elastic member; 730, third elastic member; 810, first coil skeleton; 820: second coil skeleton; 910, support frame; 920, terminal.

[0034] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] Example 1

[0039] like Figures 1 to 3 A relay includes a main body 100, a rotating assembly 200, a first movable contact piece 310, a first stationary contact piece 410 and a first electromagnetic drive assembly 500. The rotating assembly 200 is rotatably arranged on the main body 100, one end of the first movable contact piece 310 is transmission-connected to the rotating assembly 200, and the other end is connected to the main body 100. The first stationary contact piece 410 is arranged on the main body 100. The first electromagnetic drive assembly 500 is arranged on the main body 100. The first electromagnetic drive assembly 500 is linked to the rotating assembly 200. When the first electromagnetic drive assembly 500 is energized, it can drive the rotating assembly 200 to rotate relative to the main body 100, thereby driving the first movable contact piece 310 to move toward or away from the first stationary contact piece 410, thereby causing the first movable contact piece 310 to contact or separate with the first stationary contact piece 410. When the first movable contact piece 310 is in contact with the first stationary contact piece 410, the relay is in an energized state. When the first movable contact piece 310 is separated from the first stationary contact piece 410, the relay is in an energized state.

[0040] Compared to the prior art method of constantly energizing an electromagnet to draw the movable contact into contact with the stationary contact, thus keeping the relay in a permanently energized state and increasing power consumption, the relay protected by the present invention, when the first electromagnetic drive assembly 500 is energized, the first movable contact 310 contacts the first stationary contact 410, energizing the relay. When no current flows through the first electromagnetic drive assembly 500, the first movable contact 310 separates from the first stationary contact 410, de-energizing the relay. The energized state of the relay is controlled based on the energized state of the first electromagnetic drive assembly 500, reducing power consumption.

[0041] Specifically, if Figure 2 and Figure 5 As shown, the first electromagnetic drive assembly 500 includes a first coil 510, a first magnetic core 610, a first elastic member 710, and a first coil bobbin 810. The first electromagnetic drive assembly 500 is disposed on the main body 100, and the first magnetic core 610 is disposed within the first coil 510. When energized, the first coil 510 generates a magnetic field to drive the first magnetic core 610 to move toward the rotating assembly 200, so that the first magnetic core 610 abuts against and drives the rotating assembly 200 to rotate relative to the main body 100, thereby driving the first movable contact piece 310 to move toward or away from the first stationary contact piece 410, thereby causing the first movable contact piece 310 to contact or separate from the first stationary contact piece 410.

[0042] More specifically, if Figure 1 As shown, the rotating assembly 200 includes a rotating member 230 and a first operating member 210. The rotating member 230 is rotatably mounted on the main body 100. Specifically, the rotating member 230 is rotatable relative to the main body 100. The rotating member 230 is in transmission connection with the first movable contact piece 310. The first operating member 210 is mounted on the rotating member 230. The first electromagnetic drive assembly 500 is in interlocking relationship with the first operating member 210. More specifically, the first magnetic core 610 is configured to abut against the first operating member 210.

[0043] In this embodiment, if Figure 1 and Figure 2 As shown, the relay includes a second electromagnetic drive component 600, which is arranged on the main body 100. The second electromagnetic drive component 600 is linked to the rotating component 200. When the second electromagnetic drive component 600 is energized, it can drive the rotating component 200 to rotate relative to the main body 100, so as to drive the first movable contact piece 310 to move toward or away from the first static contact piece 410, thereby making the first movable contact piece 310 contact or separate from the first static contact piece 410.

[0044] Specifically, the second electromagnetic drive component 600 includes a second coil 520, a second magnetic core 620, a third elastic member 730 and a second coil skeleton 820. The second electromagnetic drive component 600 is arranged on the main body 100, and the second magnetic core 620 is passed through the second coil 520. When the second coil 520 is energized, it can generate a magnetic field to drive the second magnetic core 620 to move toward the direction close to the rotating component 200, so that the second magnetic core 620 resists and drives the rotating component 200 to rotate relative to the main body 100, thereby driving the first moving contact piece to move toward or away from the first static contact piece, thereby making the first moving contact piece contact or separate from the first static contact piece.

[0045] Furthermore, the rotating component 200 is provided with a second operating member 220, which is arranged on a side opposite to the first operating member 210. The second electromagnetic drive component 600 is arranged on the main body 100, and the second magnetic core 620 is passed through the second coil 520. When the second coil 520 is energized, it can generate a magnetic field to drive the second magnetic core 620 to move toward the direction close to the second operating member 220, so that the second magnetic core 620 resists the second operating member 220, and the second operating member 220 drives the rotating member 230 to rotate relative to the main body 100. When the first magnetic core 610 abuts against the first operating member 210, the second operating member 220 approaches the second magnetic core 620, and the rotating member 230 drives the first movable contact piece 310. When the second magnetic core 620 abuts against the second operating member 220, the first operating member 210 approaches the first magnetic core 610, and the rotating member 230 drives the first movable contact piece 310 again. In this manner, the first operating member 210 and the second operating member 220 can drive the rotating member 230 to rotate, so that the rotating member 230 can drive the first movable contact piece 310 more efficiently.

[0046] Specifically, the first operating member 210 and the second operating member 220 are symmetrically arranged relative to the rotating member 230 .

[0047] In this embodiment, if Figure 1 and Figure 2As shown, the relay includes a first elastic member 710, which elastically abuts against the first magnetic core 610. Specifically, the first coil skeleton 810 is connected to the main body 100. A through hole is formed at one end of the first coil skeleton 810. When the first coil 510 is energized, it can drive one end of the first magnetic core 610 to pass through the through hole. The first elastic member 710 is sleeved outside the first magnetic core 610, with one end of the first elastic member 710 abutting against the first coil skeleton 810 and the other end of the first elastic member 710 abutting against the first magnetic core 610. The first elastic member 710 is used to provide an elastic force to the first magnetic core 610 to move away from the rotating assembly 200. The first elastic member 710 can be, but is not limited to, a spring. Specifically, the first elastic member 710 is used to provide an elastic force to the first magnetic core 610 to move away from the first operating member 210. More specifically, the first coil 510 is used to be electrically connected to the circuit board. When the relay needs to be energized, the first coil 510 is instantly energized under the control of the circuit board, that is, the power is immediately cut off after being energized. After the first coil 510 is energized, a magnetic field is generated, driving the first magnetic core 610 to move toward the direction close to the first operating member 210. The first elastic member 710 is in a compressed state. After the first magnetic core 610 pushes away the first operating member 210, it is restored to the position before the first coil 510 was instantly energized under the action of the first elastic member 710.

[0048] Further, if Figure 3 and Figure 4 As shown, the first movable contact piece 310 is made of elastic material and has a protrusion 311. The rotating assembly 200 has a curved surface 240 that mates with and integrates with the protrusion 311. The rotating assembly 200 rotates relative to the main body 100, causing the protrusion 311 to slide along the curved surface 240. The curved surface 240 forms an angle with the vertical centerline of the protrusion 311. When the protrusion 311 slides along the curved surface 240, a force is generated in the direction toward or away from the first stationary contact piece 410, driving the first movable contact piece 310 toward or away from the first stationary contact piece 410. The elastic force of the protrusion 311, coupled with the curved surface 240, maintains the position of the first stationary contact piece 310. Specifically, when the curved surface 240 rotates, the raised portion 311 slides along the surface of the curved surface 240, forcing the first movable contact piece 310 away from the first stationary contact piece 410. The raised portion 311 elastically deforms, exerting an elastic force toward the first stationary contact piece 410, driving the first movable contact piece 310 away from the first stationary contact piece 410 and separating from the first stationary contact piece 410, thereby de-energizing the relay. At this point, the first movable contact piece 310 is in a deformed state and, under the force of the curved surface 240, separates from the first stationary contact piece 410, de-energizing the relay.

[0049] Furthermore, the first movable contact piece 310 may be, but is not limited to, beryllium copper, which has good elasticity, fatigue resistance, and good electrical conductivity.

[0050] Example 2

[0051] like Figures 6 to 8 In this embodiment, the relay includes a second elastic member 720. One end of the second elastic member 720 is connected to the rotating assembly 200, and the other end of the second elastic member 720 is connected to the first movable contact piece 310. When the rotating assembly 200 rotates relative to the main body 100, the second elastic member 720 elastically deforms, driving the first movable contact piece 310 toward the first stationary contact piece 410. This causes the first movable contact piece 310 to contact the first stationary contact piece 410 and then move away from the first stationary contact piece 410 under the elastic force of the second elastic member 720. The second elastic member 720 is used to provide an elastic force to the first movable contact piece 310 away from the first stationary contact piece 410, thereby maintaining the position of the first movable contact piece at that time. The second elastic member 720 can be, but is not limited to, a spring. In this embodiment, the first movable contact piece 310 is connected to the rotating assembly 200 via the second elastic member 720. The first movable contact piece 310 is reset by the elastic action of the second elastic member 720, not by the elastic force of the first movable contact piece 310 itself. Resetting by the elastic action of the first movable contact piece 310 itself requires a thinner first movable contact piece 310, which limits the amount of current passing through it. In this embodiment, the thickness of the first movable contact piece 310 is not limited. Therefore, increasing the thickness of the first movable contact piece 310 increases the amount of current passing through it.

[0052] In this embodiment, the relay further includes a support frame 910, a second static contact piece 420, and a second movable contact piece 320. The support frame 910 is transmission-connected to the main body 100 and can swing relative to the main body 100. The rotating assembly 200 rotates relative to the main body 100, driving the second elastic member 720 to undergo elastic deformation, thereby driving the second movable contact piece 320 to move toward or away from the second static contact piece 420, thereby causing the second movable contact piece 320 to contact or separate from the second static contact piece 420. The support frame 910 is respectively connected to the second elastic member 720, the first movable contact piece, and the second movable contact piece. The support frame 910 is made of insulating material to insulate the first movable contact piece 310 from the second movable contact piece 320. Specifically, the rotating assembly 200 drives the first movable contact piece 310 and the second movable contact piece 320 to contact the first static contact piece 410 and the second static contact piece 420 respectively, forming two closed loops. The support frame 910 is made of insulating material to insulate the first movable contact piece 310 and the second movable contact piece 320, so that the two closed loops will not affect each other.

[0053] More specifically, the support frame 910 can be, but is not limited to, made of plastic. Furthermore, the first movable contact piece 310, the second movable contact piece 320, the first stationary contact piece 410, and the second stationary contact piece 420 are all provided with silver contacts. The silver contacts enhance the contact between the first movable contact piece 310 and the first stationary contact piece 410, as well as the second movable contact piece 320 and the second stationary contact piece 420, thereby improving electrical conductivity.

[0054] Example 3

[0055] like Figure 9 and Figure 10 As shown, the relay also includes a terminal block 920, one end of which is connected to the first movable contact 310, and the other end of the terminal block 920 is disposed outside the main body 100 and connected to an external electrical appliance. The first static contact 410 is disposed outside the main body 100 and connected to the external electrical appliance at one end away from the first movable contact 310. In the small appliance industry, conventional relays achieve power supply by depositing a thick layer of solder on a circuit board and then soldering a wire, which increases assembly and rework costs. In this embodiment, the terminal block 920 and the first static contact 410 are both disposed outside the main body 100, allowing the wires of the external electrical appliance to be quickly connected directly to the terminal block 920 and the first static contact 410, thereby significantly reducing the cost of circuit board processing, as well as the cost of assembly and rework.

[0056] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A relay, characterized in that: include: main body; A rotating assembly, the rotating assembly being rotatably disposed on the main body; a first movable contact piece, one end of which is transmission-connected to the rotating assembly and the other end of which is connected to the main body; a first static contact piece, wherein the first static contact piece is provided on the main body; and a first electromagnetic drive component, the first electromagnetic drive component being disposed on the main body and being linked to the rotating component. When energized, the first electromagnetic drive component can drive the rotating component to rotate relative to the main body, thereby driving the first movable contact piece to move toward or away from the first stationary contact piece, thereby causing the first movable contact piece to contact or separate from the first stationary contact piece. When the first movable contact piece is in contact with the first stationary contact piece, the relay is in an energized state, and when the first movable contact piece is separated from the first stationary contact piece, the relay is in an energized state; The second elastic member is further included, one end of the second elastic member is connected to the rotating assembly, and the other end of the second elastic member is connected to the first movable contact piece. The rotating assembly rotates relative to the main body to drive the first movable contact piece to move toward the first static contact piece, thereby making the first movable contact piece contact the first static contact piece and always contact the first static contact piece under the elastic force of the second elastic member. The second elastic member is used to provide an elastic force to the first movable contact piece to contact or move away from the first static contact piece, and can keep the position of the first movable contact piece at that time unchanged.

2. The relay according to claim 1, wherein: The first electromagnetic drive component includes a first coil and a first magnetic core. The first coil is arranged on the main body, and the first magnetic core is inserted into the first coil. When the first coil is energized, it can generate a magnetic field to drive the first magnetic core to move toward the direction close to the rotating component, so that the first magnetic core supports and drives the rotating component to rotate relative to the main body, thereby driving the first moving contact piece to move toward or away from the first static contact piece, thereby making the first moving contact piece contact or separate from the first static contact piece.

3. The relay according to claim 2, characterized in that The relay includes a first elastic member, and the first elastic member elastically abuts against the first magnetic core.

4. The relay according to claim 1, wherein: The rotating component includes a rotating member and a first operating member. The rotating member is rotatably arranged on the main body. The rotating member is transmission-connected to the first moving contact piece. The first electromagnetic drive component is linked to the first operating member to drive the first moving contact piece to move toward or away from the first static contact piece.

5. The relay according to claim 1, wherein: The relay includes a second electromagnetic drive component, which is arranged on the main body and is linked to the rotating component. When the second electromagnetic drive component is energized, it can drive the rotating component to rotate relative to the main body, so as to drive the first movable contact piece to move toward or away from the first static contact piece, thereby causing the first movable contact piece to contact or separate from the first static contact piece.

6. The relay according to claim 5, characterized in that The second electromagnetic drive component includes a second coil and a second magnetic core. The second coil is arranged on the main body, and the second magnetic core is inserted into the second coil. When the second coil is energized, it can generate a magnetic field to drive the second magnetic core to move toward the direction close to the rotating component, so that the second magnetic core supports and drives the rotating component to rotate relative to the main body, thereby driving the first moving contact piece to move toward or away from the first static contact piece, thereby making the first moving contact piece contact or separate from the first static contact piece.

7. The relay according to claim 1, wherein: The relay also includes a wiring terminal, one end of which is connected to the first moving contact piece, the other end of which is arranged outside the main body and connected to an external electrical appliance, and the first static contact piece is arranged outside the main body and connected to the external electrical appliance at one end away from the first moving contact piece.

8. The relay according to claim 1, wherein: The relay further includes a support frame, a second stationary contact piece, and a second movable contact piece. The support frame is connected to the main body and can swing relative to the main body. The second movable contact piece can be moved toward or away from the second stationary contact piece under the drive of the rotating assembly, thereby causing the second movable contact piece to contact or separate from the second stationary contact piece. The support frame is connected to the second elastic member, the first movable contact piece and the second movable contact piece respectively. The support frame is made of insulating material to insulate the first movable contact piece and the second movable contact piece.

Images