Rotary armature structure with eccentric shaft

Abstract

The application discloses a rotating armature structure with eccentric rotating shaft, which comprises a shell, an electromagnetic component and a contact component installed in the shell, and a connecting piece for connecting the electromagnetic component and the contact component, the electromagnetic component is internally provided with a rotatingly installed armature, an arc extinguishing component is installed on the armature, the contact component comprises a moving spring piece, a moving contact and a stationary contact, and the moving contact and the stationary contact are in contact or disconnected, and the lower end of the connecting piece is provided with a supporting component. In the process of contact closing, the supporting block can be abutted against the lower end of the connecting piece to support the connecting piece, and the occurrence of contact rebound can be effectively avoided; in the process of contact separation, the arc blocking plate can enter between the moving contact and the stationary contact, the elongated electric arc is effectively absorbed by the arc blocking plate, the arc high-voltage breakdown is solved, the contact load and service life are ensured, the arc extinguishing effect is further improved, and the service life and safety of the relay are ensured.

Description

Technical Field

[0001] This invention relates primarily to the technical field of relays, specifically to a rotating armature structure with an eccentrically set shaft. Background Technology

[0002] A relay is an electronic control device with a control system (also known as an input circuit) and a controlled system (also known as an output circuit). It is commonly used in automatic control circuits and essentially acts as an "automatic switch" that uses a smaller current to control a larger current. Magnetic latching relays are a relatively new type of relay developed in recent years. Like other electromagnetic relays, they automatically connect and disconnect circuits. However, unlike other electromagnetic relays, the normally closed or normally open state of a magnetic latching relay relies entirely on the action of a permanent magnet, and its switching state is triggered by a pulse electrical signal of a certain width.

[0003] Traditionally, the armature component is placed upright inside the relay. However, this results in relatively small displacement of the driving component in the longitudinal direction at the same rotation angle, which is detrimental to the relay's structural design. With technological advancements, the armature component is now placed at an angle inside the relay. The axis of rotation of the rotatable armature component is positioned at the intersection of its transverse centerline and longitudinal non-centerline, which is perpendicular to the transverse direction of the rotatable armature component. This design deviates from the longitudinal centerline along the transverse direction of the rotatable armature component, resulting in relatively small displacement of the rotatable armature component in the longitudinal direction during rotation. This reduces the loss of electromagnetic force in the longitudinal direction, which is beneficial for the compact design of the driving mechanism and structure.

[0004] However, as the armature component rotates, the moving contact and stationary contact are brought into contact by pushing the component, which can easily cause springback, affecting the use of the relay. Furthermore, during arc extinguishing, the elongated arc cannot be effectively absorbed, leading to high-voltage breakdown between arcs and damage to the contacts, thus affecting the service life of the relay. Summary of the Invention

[0005] The present invention addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different solution. It primarily offers a rotating armature structure with an eccentrically positioned shaft, which solves the technical problems mentioned in the background section regarding the ease of springback when the moving and stationary contacts are in contact and the difficulty in effectively absorbing the electric arc when they separate.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: A rotating armature structure with an eccentrically mounted shaft includes a housing, an electromagnetic component and a contact component installed within the housing, and a connector for connecting the electromagnetic component and the contact component. The electromagnetic component houses a rotatably mounted armature, and an arc-extinguishing component is mounted on the armature. The arc-extinguishing component includes a first housing and a second housing connected to each other. The first housing contains a main shaft and a secondary shaft connected by a connecting belt. The main shaft is sleeved on the rotation center of the armature and rotates with the rotation of the armature. The second housing is divided into a cavity and a groove. The cavity contains a winding wheel connected to the axis of the secondary shaft, and a pull rope is wound on the winding wheel. The groove contains a slidably mounted arc-blocking plate. A compression spring is connected between one side of the arc-blocking plate and the side wall of the groove, and the pull rope is connected to one side of the arc-blocking plate. The arc-blocking plate is located on the side of the contact component. The contact assembly includes a moving spring, a moving contact, and a stationary contact, wherein the moving contact and the stationary contact are in contact or disconnected. The lower end of the connector is provided with a support assembly, which includes a support block located below the connector and a telescopic rod connected between the support block and the housing. A sliding frame is provided on the other side of the support block, and a moving block slides on the sliding frame. A connecting rod is rotatably connected between the moving block and the armature, and a push rod connected to the support block is installed on the moving block.

[0007] Preferably, the electromagnetic component includes a mounting frame, a coil arranged around the mounting frame, two yokes respectively connected to both ends of the mounting frame, and an armature for driving the contact component to move.

[0008] Preferably, the contact assembly includes a first output terminal, a second output terminal, and a moving spring. One end of the moving spring is connected to the first output terminal, and the other end of the moving spring is in contact with or disconnected from the second output terminal. The moving contact is disposed on the moving spring, and the stationary contact is disposed on the second output terminal.

[0009] Preferably, when the moving contact and the stationary contact are in contact, the arc-blocking plate is located on one side of the moving contact and the stationary contact; when the moving contact and the stationary contact are separated, the arc-blocking plate is located between the moving contact and the stationary contact.

[0010] Preferably, one end of the connector is mounted on the armature, and the other end is connected to the moving spring. The connector moves upward as the armature rotates and pushes the moving spring, so that the moving contact and the stationary contact come into contact.

[0011] Preferably, the sliding frame is mounted on the yoke, and when the moving contact and the stationary contact are in contact, the support block is located directly below the lifting part of the connector and in contact with the connector.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) In the process of contact closure, the armature rotates and drives the moving block to move on the sliding frame through the connecting rod, so that the telescopic rod is stretched until the moving contact contacts the stationary contact. The support block abuts against the lower end of the connector to support the connector, which can effectively prevent the contact from rebounding and ensure the effective use and safety of the relay. (2) During the contact separation process, the armature rotates and the main shaft rotates with the armature, which drives the winding wheel to rotate and lengthens the pull rope. Therefore, under the push of the compression spring, the arc baffle is pushed out and enters between the moving contact and the stationary contact, separating the moving contact and the stationary contact. The arc baffle effectively absorbs the elongated arc, solves the problem of high voltage breakdown between arcs and ensures the contact load and lifespan, further improves the arc extinguishing effect, and ensures the service life and safety of the relay.

[0013] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the arc extinguishing component structure of the present invention; Figure 3 For the present invention Figure 1 Enlarged view of point A in the middle; Figure 4 For the present invention Figure 1 Enlarged view of section B in the middle.

[0015] Figure Descriptions: 1. Housing; 21. First output terminal; 22. Second output terminal; 23. Moving spring; 24. Moving contact; 25. Stationary contact; 31. Mounting frame; 32. Coil; 33. Yoke; 34. Armature; 41. First housing; 42. Second housing; 43. Main shaft; 44. Sub-shaft; 45. Winding reel; 46. Pull rope; 47. Arc baffle; 48. Compression spring; 5. Connecting piece; 51. Support block; 52. Telescopic rod; 53. Sliding frame; 54. Moving block; 55. Connecting rod; 56. Push rod. Detailed Implementation

[0016] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the present invention. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. Rather, these embodiments are provided to make the disclosure of the present invention more thorough and complete.

[0017] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] Please refer to the appendix carefully. Figure 1 The present invention provides a technical solution: a rotating armature structure with an eccentrically arranged rotating shaft, including a housing 1, an electromagnetic component and a contact component installed in the housing 1, and a connector 5 for connecting the electromagnetic component and the contact component; The electromagnetic component has a built-in rotatably mounted armature 34. The electromagnetic component includes a mounting frame 31, a coil 32 arranged around the mounting frame 31, two yokes 33 respectively connected to both ends of the mounting frame 31, and an armature 34 for driving the contact component to move. The contact assembly includes a movable spring 23, a movable contact 24, and a stationary contact 25, wherein the movable contact 24 and the stationary contact 25 are in contact or disconnected; the contact assembly includes a first output terminal 21, a second output terminal 22, and a movable spring 23, wherein one end of the movable spring 23 is connected to the first output terminal 21, and the other end of the movable spring 23 is in contact or disconnected from the second output terminal 22; the movable contact 24 is disposed on the movable spring 23, and the stationary contact 25 is disposed on the second output terminal 22; One end of the connector 5 is mounted on the armature 34, and the other end is connected to the moving spring 23. The connector 5 moves upward as the armature 34 rotates and pushes the moving spring 23, so that the moving contact 24 and the stationary contact 25 come into contact.

[0020] When the positive DC pulse voltage excitation coil 32 is used, the yoke 33 is attracted to the magnetic plate of the armature 34 with opposite magnetism, thereby causing the armature 34 to rotate. At this time, the moving spring 23 is in a compressed state, and under the push of the connector 5, the driving moving contact 231 closes with the stationary contact 221. When the reverse DC pulse voltage excitation coil 32 is used, the yoke 33 is attracted to the magnetic plate of the other armature 34, and the armature 34 rotates in the opposite direction. Under the push of the connector 5, the driving moving contact 231 separates from the stationary contact 221.

[0021] Please refer to the appendix carefully. Figure 1-3 An arc-extinguishing assembly is installed on the armature 34. The arc-extinguishing assembly includes a first housing 41 and a second housing 42 connected to each other. The first housing 41 has a main shaft 43 and a secondary shaft 44 connected by a connecting belt inside. The main shaft 43 is sleeved on the rotation center of the armature 34 and rotates with the rotation of the armature 34. The second housing 42 is divided into a cavity and a groove. A winding wheel 45 connected to the axis of the secondary shaft 44 is installed in the cavity, and a pull rope is wound on the winding wheel 45. 46. ​​A slidingly mounted baffle plate 47 is provided inside the tank. A compression spring 48 is connected between one side of the baffle plate 47 and the side wall of the tank. A pull rope 46 is connected to one side of the baffle plate 47. The baffle plate 47 is located on one side of the contact assembly. When the moving contact 24 and the stationary contact 25 are in contact, the baffle plate 47 is located on one side of the moving contact 24 and the stationary contact 25. When the moving contact 24 and the stationary contact 25 are separated, the baffle plate 47 is located between the moving contact 24 and the stationary contact 25.

[0022] When the armature 34 rotates and the moving contact 231 separates from the stationary contact 221, the main shaft 43 rotates with the armature 34, causing the secondary shaft 44 to drive the winding wheel 45 to rotate, thus lengthening the pull rope 46. Therefore, under the push of the compression spring 48, the arc baffle 47 is pushed out and enters between the moving contact 231 and the stationary contact 221, separating the moving contact 231 and the stationary contact 221. The arc baffle 47 effectively absorbs the elongated arc, solving the problem of high-voltage breakdown between arcs and ensuring the contact load and lifespan, further improving the arc extinguishing effect, and ensuring the service life and safety of the relay. When the armature 34 rotates and the moving contact 231 approaches the stationary contact 221, the arc baffle 47 moves away from between the moving contact 231 and the stationary contact 221 to avoid affecting the contact between the moving contact 231 and the stationary contact 221.

[0023] Please refer to the appendix carefully. Figure 1 and 4 The lower end of the connector 5 is provided with a support assembly, which includes a support block 51 located below the connector 5. A telescopic rod 52 is connected between the support block 51 and the housing 1. A sliding frame 53 is provided on the other side of the support block 51. A moving block 54 slides on the sliding frame 53. A connecting rod 55 is rotatably connected between the moving block 54 and the armature 34. A push rod 56 connected to the support block 51 is installed on the moving block 54. The sliding frame 53 is installed on the yoke 33. When the moving contact 24 and the stationary contact 25 are in contact, the support block 51 is located directly below the lifting part of the connector 5 and is in contact with the connector 5.

[0024] When the armature 34 rotates and the moving contact 231 approaches the stationary contact 221, the armature 34 drives the moving block 54 to move on the sliding frame 53 via the connecting rod 55, causing the telescopic rod 52 to be stretched until the moving contact 231 contacts the stationary contact 221. The support block 51 abuts against the lower end of the connector 5, providing support for the connector 5 and preventing contact rebound, thus ensuring the effective use and safety of the relay. When the armature 34 rotates and the moving contact 231 separates from the stationary contact 221, the support block 51 moves away from the lower end of the connector 5, preventing it from affecting the separation of the moving contact 231 and the stationary contact 221.

[0025] The specific operation process of this invention is as follows: When the coil 32 is excited by a positive DC pulse voltage, the yoke 33 attracts the magnetic plate of the armature 34, which has a different magnetic field, causing the armature 34 to rotate. At this time, the moving spring 23 is in a compressed state. Under the push of the connector 5, the moving contact 231 and the stationary contact 221 are closed. During the closing process, the arc-blocking plate 47 moves away from the moving contact 231 and the stationary contact 221. The armature 34 drives the moving block 54 to move on the sliding frame 53 through the connecting rod 55, so that the telescopic rod 52 is stretched until the moving contact 231 contacts the stationary contact 221. The support block 51 abuts against the lower end of the connector 5, providing support for the connector 5 and preventing the contact from rebounding. When the reverse DC pulse voltage excitation coil 32 is used, the yoke 33 is attracted to the magnetic plate of another armature 34, and the armature 34 rotates in the opposite direction. Under the push of the connector 5, the driving moving contact 231 is separated from the stationary contact 221. During the separation process, the support block 51 leaves the lower end of the connector 5, and the main shaft 43 rotates with the armature 34, so that the secondary shaft 44 drives the winding wheel 45 to rotate, and the pull rope 46 is lengthened. Therefore, under the push of the compression spring 48, the arc baffle 47 is pushed out and enters between the moving contact 231 and the stationary contact 221, separating the moving contact 231 and the stationary contact 221. The arc baffle 47 effectively absorbs the elongated arc.

[0026] The present invention has been described by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A rotating armature structure with an eccentrically arranged shaft, comprising a housing (1), an electromagnetic component and a contact component installed within the housing (1), and a connector (5) for connecting the electromagnetic component and the contact component, characterized in that: The electromagnetic component has a rotating armature (34) built in, and an arc extinguishing component is installed on the armature (34). The arc extinguishing component includes a first box (41) and a second box (42) connected to each other. The first box (41) is provided with a main shaft (43) and a secondary shaft (44) connected by a connecting belt. The main shaft (43) is sleeved on the rotation center of the armature (34) and rotates with the rotation of the armature (34). The second box (42) is divided into a cavity and a groove. The cavity is provided with a winding wheel (45) connected to the axis of the secondary shaft (44), and a pull rope (46) is wound on the winding wheel (45). The groove is provided with a sliding arc baffle (47). A compression spring (48) is connected between one side of the arc baffle (47) and the side wall of the groove. The pull rope (46) is connected to one side of the arc baffle (47). The arc baffle (47) is located on the side of the contact component. The contact assembly includes a moving spring (23), a moving contact (24), and a stationary contact (25), and the moving contact (24) and the stationary contact (25) are in contact or disconnected; The lower end of the connector (5) is provided with a support assembly, which includes a support block (51) located below the connector (5), and a telescopic rod (52) is connected between the support block (51) and the housing (1). A sliding frame (53) is provided on the other side of the support block (51), and a moving block (54) slides on the sliding frame (53). A connecting rod (55) is rotatably connected between the moving block (54) and the armature (34), and a push rod (56) connected to the support block (51) is installed on the moving block (54).

2. The rotating armature structure with an eccentrically arranged shaft according to claim 1, characterized in that: The electromagnetic assembly includes a mounting frame (31), a coil (32) arranged around the mounting frame (31), two yokes (33) respectively connected to both ends of the mounting frame (31), and an armature (34) for driving the contact assembly to move.

3. The rotating armature structure with an eccentrically arranged shaft according to claim 1, characterized in that: The contact assembly includes a first output terminal (21), a second output terminal (22), and a moving spring (23). One end of the moving spring (23) is connected to the first output terminal (21), and the other end of the moving spring (23) is in contact with or disconnected from the second output terminal (22). The moving contact (24) is disposed on the moving spring (23), and the stationary contact (25) is disposed on the second output terminal (22).

4. The rotating armature structure with an eccentrically arranged shaft according to claim 1, characterized in that: When the moving contact (24) and the stationary contact (25) are in contact, the arc-blocking plate (47) is located on one side of the moving contact (24) and the stationary contact (25). When the moving contact (24) and the stationary contact (25) are separated, the arc-blocking plate (47) is located between the moving contact (24) and the stationary contact (25).

5. A rotating armature structure with an eccentrically arranged shaft according to claim 1, characterized in that: One end of the connector (5) is mounted on the armature (34), and the other end is connected to the moving spring (23). The connector (5) moves upward as the armature (34) rotates and pushes the moving spring (23) so that the moving contact (24) and the stationary contact (25) come into contact.

6. A rotating armature structure with an eccentrically arranged shaft according to claim 2, characterized in that: The sliding frame (53) is mounted on the yoke (33). When the moving contact (24) and the stationary contact (25) are in contact, the support block (51) is located directly below the lifting part of the connector (5) and in contact with the connector (5).

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