A relay

Abstract

The present invention discloses a relay including a housing, a transmission mechanism, a first static contact piece, a second static contact piece, a first movable contact piece and a first electromagnetic drive component. The transmission mechanism is rotatably arranged on the housing, and the first movable contact piece, the first static contact piece and the second static contact piece are all arranged on the housing. The first movable contact piece is made of elastic material, and a first positioning structure and a second positioning structure are provided on the first movable contact piece. The transmission mechanism can abut against the first positioning structure or the second positioning structure. When the transmission mechanism abuts against the second positioning structure, the first movable contact piece contacts the first static contact piece. The first electromagnetic drive component is arranged on the housing and is linked to the transmission mechanism. When the first electromagnetic drive component is energized, it can drive the transmission mechanism to rotate so that the transmission mechanism abuts against the first positioning structure, thereby causing the first movable contact piece to move toward the direction close to the second static contact piece and contact the second static contact piece. The relay can achieve stable power supply.

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. In existing technology, a relay continuously energizes an electromagnet to generate a magnetic field that attracts the corresponding mechanism, closing or separating the contacts. This causes the relay to continuously consume energy. In certain operating environments, relays can be affected by high currents, high temperatures, and magnetic fields. These factors can affect the quality of the relay contacts' power-on and power-off, and in severe cases, may prevent the relay from powering off. 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 contacts cannot be kept in continuous contact or disconnected, resulting in unstable power on and power off of the relay.

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

[0005] case;

[0006] a transmission mechanism rotatably disposed on the housing;

[0007] a first stationary contact piece and a second stationary contact piece, wherein the first stationary contact piece and the second stationary contact piece are both provided on the housing;

[0008] a first movable contact piece, wherein the first movable contact piece is made of an elastic material and is disposed on the housing. The first movable contact piece is provided with a first positioning structure and a second positioning structure. The transmission mechanism can abut against the first positioning structure or the second positioning structure. When the transmission mechanism abuts against the second positioning structure, the first movable contact piece contacts the first stationary contact piece; and

[0009] A first electromagnetic drive component is arranged on the shell, and the first electromagnetic drive component is linked with the transmission mechanism. When the first electromagnetic drive component is energized, it can drive the transmission mechanism to rotate, so that the transmission mechanism moves from the second positioning structure to the first positioning structure and presses against the first positioning structure, thereby causing the first moving contact piece to move toward the direction close to the second static contact piece and contact the second static contact piece.

[0010] Furthermore, the transmission mechanism includes an elastic component and a rotating member, the rotating member is rotatably arranged on the shell and is linked to the first electromagnetic drive component, the end of the rotating member away from the first electromagnetic drive component is connected to the elastic component, and the end of the elastic component away from the rotating member can abut against the first positioning structure or the second positioning structure. When the elastic component abuts against the second positioning structure, the first moving contact piece contacts the first static contact piece by its own elasticity.

[0011] Furthermore, the elastic component includes a sleeve, a first elastic member and a rolling member, the sleeve is connected to the rotating member, the first elastic member is sleeved in the sleeve, and the first elastic member is connected to the rolling member, the rolling member is partially arranged in the sleeve, and the first elastic member is used to provide an elastic force to the rolling member toward the first positioning structure or the second positioning structure so that the rolling member presses against the first positioning structure or the second positioning structure.

[0012] Furthermore, the first positioning structure is a first groove, the second positioning structure is a second groove, and the rolling element is a steel ball.

[0013] Furthermore, an inclined surface is provided at one end of the sleeve close to the first positioning structure, and the inclined surface is inclined from the inner side wall of the sleeve to the outer side wall close to the rotating member.

[0014] Furthermore, the shell includes a main body and a cover body, the transmission mechanism, the first static contact piece, the second static contact piece, the first movable contact piece and the first electromagnetic drive component are all arranged on the main body, the cover body is covered on the main body, and a first opening is opened on the top of the main body, and the transmission mechanism is accommodated in the first opening and can rotate in the first opening.

[0015] Furthermore, the cover is provided with a second opening on a side facing the main body, the first opening and the second opening form a circular hole, and the transmission mechanism is adapted to the circular hole and rotates in the circular hole.

[0016] Furthermore, the first electromagnetic drive component includes a coil and a magnetic core, the coil is arranged on the shell, and the magnetic core is inserted into the coil. When the coil is energized, it can generate a magnetic field to drive the magnetic core to move toward the direction close to the transmission mechanism, so that the magnetic core can support and drive the transmission mechanism to move from the first positioning structure to the second positioning structure, and resist the second positioning structure.

[0017] Furthermore, the relay further includes a second elastic member, and the second elastic member elastically abuts against the magnetic core.

[0018] Furthermore, the relay also includes a second electromagnetic drive component, which is arranged on the shell relative to the first electromagnetic drive component. The second electromagnetic drive component is linked to the transmission mechanism. When the second electromagnetic drive component is energized, it can drive the transmission mechanism to rotate relative to the shell, so as to drive the first moving contact piece to move from the first positioning structure to the second positioning structure, so that the first moving contact piece contacts the first static contact piece.

[0019] A relay provided by the present invention has a first positioning structure and a second positioning structure provided on a first movable contact piece, and a transmission mechanism can abut against the first positioning structure or the second positioning structure. When the transmission mechanism abuts against the first positioning structure, the first movable contact piece and the second static contact piece can be in continuous contact, so that the first movable contact piece and the second static contact piece are stably energized. When the transmission mechanism abuts against the second positioning structure, the first movable contact piece and the first static contact piece can be in continuous contact, so that the first movable contact piece and the first static contact piece are stably energized, thereby ensuring that the relay is stably energized. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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.

[0021] Figure 1 Schematic diagram of the structure of a relay in an embodiment of the present invention;

[0022] Figure 2 is an exploded view of a relay in an embodiment of the present invention;

[0023] Figure 3 Schematic diagram of the structure of the relay of the transmission mechanism in an embodiment of the present invention;

[0024] Figure 4 1 is another structural diagram of a relay in an embodiment of the present invention;

[0025] Figure 5 Schematic diagram of the structure of the first movable contact piece in an embodiment of the present invention;

[0026] Figure 6 Schematic diagram of the structure of the cover body in an embodiment of the present invention;

[0027] Figure 7 Schematic diagram of the structure of the first elastic member and the rolling member in an embodiment of the present invention;

[0028] Figure 8Schematic diagram of the structure of the coil, the magnetic core and the second elastic member in an embodiment of the present invention;

[0029] Figure 9 A schematic structural diagram of a relay in another embodiment of the present invention;

[0030] Figure 10 A schematic structural diagram of a rotating member and a transmission member in another embodiment of the present invention;

[0031] Figure 11 Schematic diagram of the structure of the second moving contact piece and the third moving contact piece in another embodiment of the present invention.

[0032] Main components:

[0033] 100, housing; 110, main body; 111, first opening; 120, cover; 121, second opening; 200, transmission mechanism; 210, elastic component; 211, sleeve; 2111, inclined surface; 212, first elastic member; 213, rolling member; 220, rotating member; 300, first stationary contact piece; 400, second stationary contact piece; 500, first moving contact piece; 510, first positioning structure; 520, second positioning structure; 600, first electromagnetic drive component; 610, coil; 620, magnetic core; 630, second elastic member; 640, coil bracket; 700, second electromagnetic drive component; 810, second moving contact piece; 820, third moving contact piece; 830, transmission member; 831, first protrusion; 832, second protrusion; 840, third groove; 850, fourth groove.

[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, rotation 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] like Figure 1 、 Figure 2 and Figure 5 As shown, in some embodiments, a relay includes a housing 100, a transmission mechanism 200, a first static contact piece 300, a second static contact piece 400, a first movable contact piece 500 and a first electromagnetic drive assembly 600, the transmission mechanism 200 is rotatably arranged on the housing 100, the first static contact piece 300 and the second static contact piece 400 are both arranged on the housing 100, the first movable contact piece 500 is made of elastic material, the first movable contact piece 500 is arranged on the housing 100, and the first movable contact piece 500 is provided with a first positioning structure 510 and a second positioning structure 520, and the transmission mechanism 200 can abut against the first positioning structure 510 or the second positioning structure 520. The first movable contact piece 500 is in contact with the first static contact piece 300 and the first electromagnetic drive component 600 is provided on the housing 100. The first electromagnetic drive component 600 is linked with the transmission mechanism 200. When the first electromagnetic drive component 600 is energized, it can drive the transmission mechanism 200 to rotate, so that the transmission mechanism 200 moves from the second positioning structure 520 to the first positioning structure 510 and presses against the first positioning structure 510, thereby moving the first movable contact piece 500 toward the second static contact piece 400 and contacting the second static contact piece 400.

[0039] By providing the first positioning structure 510 and the second positioning structure 520 on the first movable contact piece 500, and the transmission mechanism 200 being able to abut against the first positioning structure 510 and the second positioning structure 520, when the transmission mechanism 200 abuts against the first positioning structure 510, the first movable contact piece 500 and the second static contact piece 400 can be in continuous contact, so that the first movable contact piece 500 and the second static contact piece 400 are stably energized. When the transmission mechanism 200 abuts against the second positioning structure 520, the first movable contact piece 500 is in continuous contact with the first static contact piece 300 by virtue of its own elasticity, thereby ensuring that the relay is stably energized.

[0040] Specifically, the first movable contact piece 500 can be, but is not limited to, beryllium copper, which has excellent elasticity, fatigue resistance, and good conductivity. More specifically, the first stationary contact piece 300 is a normally closed contact terminal assembly, the second stationary contact piece 400 is a normally open contact terminal assembly, and the first movable contact piece 500 is a common terminal contact assembly.

[0041] Furthermore, the transmission mechanism 200 includes an elastic component 210 and a rotating member 220. The rotating member 220 is rotatably arranged on the shell 100 and is linked to the first electromagnetic drive component 600. The end of the rotating member 220 away from the first electromagnetic drive component 600 is connected to the elastic component 210. The end of the elastic component 210 away from the rotating member 220 can abut against the first positioning structure 510 or the second positioning structure 520. When the elastic component 210 abuts against the first positioning structure 520, it is used to provide an elastic force to the first moving contact piece 500 toward the second static contact piece 400.

[0042] like Figure 3 and Figure 7 As shown, further, the elastic assembly 210 includes a sleeve 211, a first elastic member 212, and a rolling member 213. The sleeve 211 is connected to the rotating member 220. The first elastic member 212 is sleeved in the sleeve 211 and connected to the rolling member 213. The rolling member 213 is partially disposed in the sleeve 211. The first elastic member 212 is used to provide an elastic force to the rolling member 213 toward the first positioning structure 510 or the second positioning structure 520, so that the rolling member 213 abuts against the first positioning structure 510 or the second positioning structure 520. Specifically, the first positioning structure 510 is located directly below the rotation axis of the transmission mechanism 200, and the distance between the first positioning structure 510 and the rotation axis of the transmission mechanism 200 is smaller than the distance between the second positioning structure 520 and the rotation axis of the transmission mechanism 200. When the rolling element 213 is located at the first positioning structure 510 , the first elastic element 212 is in a compressed state. Because the distance between the first positioning structure 510 and the rotation axis of the transmission mechanism 200 is smaller than the distance between the second positioning structure 520 and the rotation axis of the transmission mechanism 200 , the first elastic element 212 and the rolling element 213 compress the first movable contact piece 500 toward and into contact with the second stationary contact piece 400 , maintaining this state.

[0043] like Figure 2As shown, in some embodiments, one end of the first movable contact piece 500 is fixed to the housing 100, and the other end of the first movable contact piece 500 is adjacent to the first static contact piece 300 and the second static contact piece 400. The first static contact piece 300 is located above the first movable contact piece 500, and the second static contact piece 400 is located below the first movable contact piece 500. The first positioning structure 510 is located directly below the rotation axis of the transmission mechanism 200, and the second positioning structure 520 is located to the right of the first positioning structure 510. More specifically, the first positioning structure 510 is a first groove, the second positioning structure 520 is a second groove, the rolling element 213 is a steel ball, and the first elastic element 212 is a spring.

[0044] During operation, after the first electromagnetic drive component 600 is energized, the drive transmission mechanism 200 rotates relative to the housing 100, and the sleeve 211 rotates from the second groove to the first groove. The spring is sleeved in the sleeve 211, and the steel ball is partially arranged in the sleeve 211. The steel ball will follow the sleeve 211 to roll relative to the spring, and the steel ball rolls from the second groove to the first groove. The spring is in a natural state when it is in the second groove. The spring will undergo elastic deformation accordingly during the process of following the sleeve 211 to rotate from the second groove to the first groove. Since the distance between the first groove and the rotation axis of the transmission mechanism 200 is smaller than the distance between the second groove and the transmission mechanism 200, when the steel ball is in the first groove, the spring is in a compressed state. At this time, the spring A downward elastic force is provided to the first movable contact piece 500. The first movable contact piece 500 is made of elastic material. Under the driving force of the mechanism assembly 200 and the elastic force of the spring, it will approach the second static contact piece 400 and contact and energize the second static contact piece 400. The elastic force of the spring can ensure that the first movable contact piece 500 and the second static contact piece 400 are in continuous contact, so that the first movable contact piece 500 and the second static contact piece 400 are stably energized, thereby ensuring that the relay is stably energized. In addition, the steel ball rolls from the second groove to the first groove, which greatly reduces the wear on the first movable contact piece 500 compared to the sliding method, thereby increasing the service life of the first movable contact piece 500 and the service life of the relay.

[0045] like Figure 3 As shown, further, an inclined surface 2111 is provided at one end of the sleeve 211 close to the first positioning structure 510, and the inclined surface 2111 is inclined from the inner wall of the sleeve 211 to the outer wall close to the rotating member 220. The inclined surface 2111 can better adapt to the process of the steel ball from the first groove to the second groove.

[0046] like Figure 2 and Figure 6As shown, in some embodiments, the housing 100 includes a main body 110 and a cover 120. The transmission mechanism 200, the first static contact piece 300, the second static contact piece 400, the first movable contact piece 500, and the first electromagnetic drive assembly 600 are all disposed on the main body 110. The cover 120 is disposed on the main body 110. A first opening 111 is defined at the top of the main body 110. The transmission mechanism 200 is accommodated in the first opening 111 and is rotatable within the first opening 111. A second opening 121 is defined on a side of the cover 120 facing the main body 110. The first opening 111 and the second opening 121 form a circular hole. The transmission mechanism 200 fits within the circular hole and rotates within the circular hole to prevent the transmission mechanism 200 from separating from the housing 100 during rotation.

[0047] like Figure 2 、 Figure 4 and Figure 8 As shown, in some embodiments, the first electromagnetic drive assembly 600 includes a coil 610 and a magnetic core 620. The coil 610 is disposed on the housing 100, and the magnetic core 620 is disposed within the coil 610. When energized, the coil 610 generates a magnetic field to drive the magnetic core 620 to move toward the transmission mechanism 200, so that the magnetic core 620 abuts and drives the transmission mechanism 200 to move from the second positioning structure 520 to the first positioning structure 510, and abuts the first positioning structure 510. The relay also includes a second elastic member 630, which elastically abuts the magnetic core 620. Specifically, the relay also includes a coil support 640, which is mounted on the housing 100. One end of the coil support 640 defines a through-hole. When the coil 610 is energized, it drives one end of the magnetic core 620 through the through-hole. A second elastic member 630 is sleeved around the magnetic core 620, with one end of the second elastic member 630 abutting the coil support 640 and the other end abutting the magnetic core 620. The second elastic member 630 is configured to provide an elastic force to the magnetic core 620, causing it to move away from the transmission mechanism 200. The second elastic member 630 is a spring. Specifically, the coil 610 is electrically connected to the circuit board. When the coil 610 is energized under the control of the circuit board, it generates a magnetic field that drives the magnetic core 620 toward the transmission mechanism 200. The second elastic member 630 is compressed. When the coil 610 is no longer energized, the magnetic core 620 returns to its original position under the action of the second elastic member 630.

[0048] The relay also includes a second electromagnetic drive assembly 700, which is disposed on the housing 100 opposite the first electromagnetic drive assembly 600. The second electromagnetic drive assembly 700 is linked to the transmission mechanism 200. When energized, the second electromagnetic drive assembly 700 drives the transmission mechanism 200 to rotate relative to the housing 100, thereby moving the first movable contact piece 500 from the first positioning structure 510 to the second positioning structure 520, thereby bringing the first movable contact piece 500 into contact with the first stationary contact piece 300. The structure of the second electromagnetic drive assembly 700 is identical to that of the first electromagnetic drive assembly 600 and will not be further described here.

[0049] like Figures 9 to 11 As shown, in another embodiment, a relay further includes a housing 100, a rotating member 220, a transmission member 830, a second moving contact piece 810, a third moving contact piece 820 and a first electromagnetic drive assembly 600, the rotating member 220 is rotatably arranged on the housing 100, the rotating member 220 is connected to the transmission member 830, the second moving contact piece 810 and the third moving contact piece 820 are both arranged on the housing 100, and the transmission member 830 is arranged between the second moving contact piece 810 and the third moving contact piece 820, the first electromagnetic drive assembly 600 is arranged on the housing 10 0, the first electromagnetic drive assembly 600 is linked to the rotating member 220. When the first electromagnetic drive assembly 600 is powered off, the second movable contact piece 810 contacts the third movable contact piece 820. When the first electromagnetic drive assembly 600 is powered on, the first electromagnetic drive assembly 600 can drive the rotating member 220 to rotate, causing the rotating member 220 to drive the transmission member 830 to rotate. In turn, the transmission member 830 drives the second movable contact piece 810 and the third movable contact piece 820 to move away from each other, separating the second movable contact piece 810 from the third movable contact piece 820. In this embodiment, the transmission member 830 replaces the elastic assembly 210 of the previous embodiment. The transmission member 830 is used to achieve switching between contact and separation of the second movable contact piece 810 and the third movable contact piece 820. The other structures are the same as the previous embodiment.

[0050] Specifically, the transmission member 830 is provided with a first protrusion 831 and a second protrusion 832, the second movable contact piece 810 is provided with a third groove 840, and the third movable contact piece 820 is provided with a fourth groove 850. During the rotation process, the transmission member 830 drives the second movable contact piece 810 and the third movable contact piece 820 to move away from each other. The first protrusion 831 is clamped in the third groove 840, and the second protrusion 832 is clamped in the fourth groove 850, so that the second movable contact piece 810 and the third movable contact piece 820 maintain the current state (power-off state).

[0051] 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: case; a transmission mechanism rotatably disposed on the housing; a first stationary contact piece and a second stationary contact piece, wherein the first stationary contact piece and the second stationary contact piece are both provided on the housing; a first movable contact piece, the first movable contact piece being arranged horizontally, the first movable contact piece being made of elastic material, being arranged on the housing, and being provided with a first positioning structure and a second positioning structure, the transmission mechanism being capable of abutting against the first positioning structure or the second positioning structure, and when the transmission mechanism abuts against the second positioning structure, the first movable contact piece contacts the first stationary contact piece; and a first electromagnetic drive assembly, the first electromagnetic drive assembly being disposed on the housing and being linked to the transmission mechanism. When energized, the first electromagnetic drive assembly can drive the transmission mechanism to rotate, so that the transmission mechanism moves from the second positioning structure to the first positioning structure and abuts against the first positioning structure, thereby causing the first movable contact piece to move toward the second static contact piece and contact the second static contact piece; The transmission mechanism includes an elastic component and a rotating member, wherein the rotating member is rotatably disposed on the housing and is linked to the first electromagnetic drive component, and one end of the rotating member away from the first electromagnetic drive component is connected to the elastic component; The elastic component includes a sleeve, a first elastic member and a rolling member. The sleeve is connected to the rotating member. The axis of the sleeve is perpendicular to the axis of the rotating member. The end of the sleeve away from the rotating member abuts the first moving contact piece downward. The first elastic member is sleeved in the sleeve, and the first elastic member is connected to the rolling member. The rolling member is partially arranged in the sleeve, and the rolling member is rollingly connected to the first moving contact piece.

2. The relay according to claim 1, wherein: One end of the elastic component away from the rotating member can abut against the first positioning structure or the second positioning structure. When abutting against the first positioning structure, the elastic component is used to provide an elastic force to the first movable contact piece toward the second stationary contact piece.

3. The relay according to claim 2, characterized in that The first elastic member is used to provide an elastic force on the rolling member toward the first positioning structure or the second positioning structure, so that the rolling member presses against the first positioning structure or the second positioning structure.

4. The relay according to claim 3, characterized in that The first positioning structure is a first groove, the second positioning structure is a second groove, and the rolling element is a steel ball.

5. The relay according to claim 3, characterized in that An inclined surface is provided at one end of the sleeve close to the first positioning structure, and the inclined surface is inclined from the inner side wall of the sleeve to the outer side wall close to the rotating member.

6. The relay according to claim 1, wherein: The shell includes a main body and a cover body, the transmission mechanism, the first static contact piece, the second static contact piece, the first movable contact piece and the first electromagnetic drive component are all arranged on the main body, the cover body is covered on the main body, and a first opening is opened on the top of the main body, and the transmission mechanism is accommodated in the first opening and can rotate in the first opening.

7. The relay according to claim 6, characterized in that The cover is provided with a second opening on one side facing the main body. The first opening and the second opening form a circular hole. The transmission mechanism is adapted to the circular hole and rotates in the circular hole.

8. The relay according to claim 1, wherein: The first electromagnetic drive component includes a coil and a magnetic core. The coil is arranged on the shell, and the magnetic core is inserted into the coil. When the coil is energized, it can generate a magnetic field to drive the magnetic core to move toward the direction close to the transmission mechanism, so that the magnetic core can support and drive the transmission mechanism to move from the first positioning structure to the second positioning structure and resist the second positioning structure.

9. The relay according to claim 8, characterized in that The relay further includes a second elastic member, and the second elastic member elastically abuts against the magnetic core.

10. The relay according to claim 1, wherein: The relay also includes a second electromagnetic drive component, which is arranged on the housing opposite to the first electromagnetic drive component. The second electromagnetic drive component is linked to the transmission mechanism. When the second electromagnetic drive component is energized, it can drive the transmission mechanism to rotate relative to the housing, thereby driving the first moving contact piece to move from the first positioning structure to the second positioning structure, so that the first moving contact piece contacts the first static contact piece.

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