Armature reed assembly and vacuum relay

Abstract

The utility model discloses an armature reed assembly and a vacuum relay, and belongs to the field of vacuum relays. The connecting support of the armature reed assembly comprises a first connecting frame and a second connecting frame which are connected, and a first bending part is arranged at the joint of the first connecting frame and the second connecting frame. The armature is provided with a mounting surface and a supporting surface which are oppositely arranged along a first direction. The extension direction of the first connecting frame intersects with the mounting surface, the second connecting frame comprises a mounting plate and a limiting support which are connected, a second bending part is arranged at the joint of the mounting plate and the limiting support, the bending angle of the second bending part and the angle of the first included angle are obtuse angles, and the mounting plate is fixedly connected to the first plane; the second bending part is pressed between the first plane and the second plane in an abutting mode, the limiting support is provided with a limiting cavity, and at least part of the armature is located in the limiting cavity. Therefore, the second bending part enables the connection support to deform, the rigidity of the connection support is reduced, and the operation voltage of the vacuum relay is reduced.

Description

Technical Field

[0001] This application belongs to the field of vacuum relays, specifically relating to an armature spring assembly and a vacuum relay. Background Technology

[0002] In the electrical engineering industry, relays are widely used as control devices. They have a control system (also known as an input circuit) and a controlled system (also known as an output circuit), and are typically used in automatic control circuits. A relay is essentially an "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays a role in automatic adjustment, safety protection, and circuit switching in circuits.

[0003] In related technologies, the support frame in a vacuum relay is connected to the armature, and the support frame can drive the armature to move. However, in these technologies, the bulge at the tail of the support frame is too rigid and not easily deformed, resulting in a high operating voltage for the vacuum relay. Utility Model Content

[0004] The purpose of this application is to provide an armature spring assembly and a vacuum relay, at least to solve the problem that the bulge at the tail of the support frame is too rigid and not easy to deform, resulting in a high operating voltage of the vacuum relay.

[0005] In a first aspect, embodiments of this application provide an armature spring assembly, the armature spring assembly comprising: an armature and a connecting bracket;

[0006] The connecting bracket includes a first connecting frame and a second connecting frame connected together, and the connection between the first connecting frame and the second connecting frame has a first bend.

[0007] The armature has a mounting surface and a supporting surface arranged opposite to each other along a first direction. The mounting surface includes a first plane and a second plane. The supporting surface includes a first sub-surface and a second sub-surface connected together. There is a first included angle between the second sub-surface and the first sub-surface. The orthographic projection of the first sub-surface onto the mounting surface along the first direction overlaps with the first plane. The orthographic projection of the second sub-surface onto the mounting surface along the first direction overlaps with the second plane. The first direction is the thickness direction of the armature and is the direction from the supporting surface to the mounting surface.

[0008] The extension direction of the first connecting frame intersects with the mounting surface. The second connecting frame includes a connected mounting plate and a limiting bracket. The connection between the mounting plate and the limiting bracket has a second bend. The bending angle of the second bend and the angle of the first included angle are both obtuse angles. The mounting plate is fixedly connected to the first plane. The second bend abuts against the first plane and the second plane. The limiting bracket has a limiting cavity, and at least a portion of the armature is located in the limiting cavity.

[0009] Optionally, at least one connecting arm is provided between the mounting plate and the limiting bracket;

[0010] The connection between the connecting arm and the limiting bracket constitutes the second bent portion;

[0011] The dimension of the connecting arm in the second direction is smaller than the dimension of the mounting plate in the second direction, wherein the second direction intersects the first direction and the extension direction of the connecting arm.

[0012] Optionally, the limiting bracket is a frame structure, and the limiting bracket includes at least a first limiting surface, a second limiting surface, and a third limiting surface. The first limiting surface, the second limiting surface, and the third limiting surface form the limiting cavity. The first limiting surface intersects with the first direction, the second limiting surface and the third limiting surface intersect with the second direction, the second direction intersects with the first direction, and the second direction is consistent with the width direction of the armature.

[0013] Optionally, the limiting bracket includes a limiting plate, a first side plate, and a second side plate;

[0014] The first side plate is disposed at the first end of the limiting plate, and the second side plate is disposed at the second end of the limiting plate. The plane where the first side plate is located intersects the plane where the limiting plate is located, and the plane where the second side plate is located intersects the plane where the limiting plate is located. The first end and the second end are two opposite ends of the limiting plate in the second direction.

[0015] The limiting plate, the first side plate, and the second side plate form the limiting cavity.

[0016] Optionally, the limiting plate is inclined relative to the second plane, and there is a gap between the limiting plate and the second plane.

[0017] Optionally, the armature includes a first sidewall and a second sidewall, wherein the first sidewall and the second sidewall are two sidewalls of the armature that are opposite to each other in the second direction;

[0018] The first sidewall and the first side plate are disposed opposite to each other, and there is a gap fit between the first sidewall and the first side plate. The second sidewall and the second side plate are disposed opposite to each other, and there is a gap fit between the second sidewall and the second side plate.

[0019] Optionally, the limiting bracket further includes a first support plate and a second support plate;

[0020] The first support plate is connected to the end of the first side plate away from the limiting plate, and the plane of the first support plate intersects with the plane of the first side plate;

[0021] The second support plate is connected to the end of the second side plate away from the limiting plate, and the plane of the second support plate intersects with the plane of the second side plate.

[0022] Optionally, the first support plate extends in a direction away from the first side plate, and the second support plate extends in a direction away from the second side plate.

[0023] Optionally, the bending angle of the second bend is equal to the angle of the first included angle.

[0024] In a second aspect, embodiments of this application provide a vacuum relay, the vacuum relay including an electromagnetic component and an armature reed assembly as described in any one of the first aspects above;

[0025] The electromagnetic component includes an electromagnetic coil and a magnetic cylinder, with the electromagnetic coil disposed in the magnetic cylinder;

[0026] The connecting bracket and the magnetic cylinder are fixedly connected. When the electromagnetic component is de-energized, the second sub-face and the end face of the magnetic cylinder facing the armature abut against each other, and there is a first preset angle between the first sub-face and the end face of the magnetic cylinder facing the armature.

[0027] In this embodiment of the application, when the armature spring assembly is applied to a vacuum relay, the normally open pressure can be provided through the first bending part, the normally closed pressure can be provided through the second bending part, and pressure can be applied to the armature at the same time to ensure the contact surface between the armature and the magnetic cylinder. Furthermore, the armature has a mounting surface and a support surface arranged opposite to each other along a first direction. The mounting surface includes a first plane and a second plane, and the support surface includes a first sub-surface and a second sub-surface connected together. There is a first included angle between the second sub-surface and the first sub-surface. The orthographic projection of the first sub-surface onto the mounting surface along the first direction overlaps with the first plane, and the orthographic projection of the second sub-surface onto the mounting surface along the first direction overlaps with the second plane. The first connecting frame intersects with the mounting surface, and the second connecting frame includes a connected mounting plate and a limiting bracket. The connection between the mounting plate and the limiting bracket has a second bend. The bending angle of the second bend and the angle of the first included angle are both obtuse angles. Therefore, the bending direction of the second sub-surface in contact with the magnetic cylinder is the same as the bending direction of the second bend, and the bending point and the second bend between the first sub-surface and the second bend are in relative positions in the first direction. This ensures that the pivot point of the armature is located at the bend of the first sub-surface and the second sub-surface, ensuring that the pivot point of the armature is always in contact when it moves. In other words, the second bend allows the second facet of the armature to fit against the magnetic cylinder while stabilizing the magnetic gap between the first facet and the magnetic cylinder, ensuring smooth movement of the connecting bracket. Furthermore, the second bend provides normally closed pressure and applies pressure to the armature, maintaining contact between the armature and the magnetic cylinder. The second bend also allows the connecting bracket to deform, reducing its rigidity and consequently lowering the operating voltage of the vacuum relay. This avoids the problem of high operating voltage in the vacuum relay, ensuring a lower operating voltage and saving energy. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram illustrating the structure of an armature spring assembly provided in an embodiment of this application;

[0030] Figure 2 This is a schematic diagram showing the structure of a connecting bracket included in an armature spring assembly provided in an embodiment of this application;

[0031] Figure 3 This is a schematic cross-sectional view of the connecting bracket included in an armature spring assembly provided in an embodiment of this application;

[0032] Figure 4 This is a schematic diagram showing the structure of the armature included in an armature spring assembly provided in this application embodiment;

[0033] Figure 5 This is a schematic diagram showing the cross-sectional structure of the armature included in an armature spring assembly provided in this application embodiment;

[0034] Figure 6 This diagram illustrates a vacuum relay provided in an embodiment of this application.

[0035] Figure 7 This represents one of the cross-sectional views of a vacuum relay provided in an embodiment of this application;

[0036] Figure 8 This is a second cross-sectional view of a vacuum relay provided in an embodiment of this application.

[0037] Figure label:

[0038] 001: Normally closed contact; 002: Normally open contact; 1: Armature; 11: Mounting surface; 111: First plane; 112: Second plane; 12: Support surface; 121: First sub-surface; 122: Second sub-surface; 2: Connecting bracket; 21: First connecting frame; 210: First bending part; 22: Second connecting frame; 23: Mounting plate; 24: Limiting bracket; 241: Limiting plate; 242: First side plate; 243: Second side plate; 244: First support plate; 245: Second support plate; 25: Second bending part; 26: Connecting arm; 100: Electromagnetic assembly; 110: Magnetic cylinder; 120: Electromagnetic coil; 200: Housing; 300: Transmission rod; X: Third direction; Y: Second direction; Z: First direction. Detailed Implementation

[0039] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0040] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0041] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] like Figures 1 to 5 As shown, the armature spring assembly includes: an armature 1 and a connecting bracket 2;

[0043] The connecting bracket 2 includes a first connecting frame 21 and a second connecting frame 22 connected together, and the connection between the first connecting frame 21 and the second connecting frame 22 has a first bend 210.

[0044] The armature 1 has a mounting surface 11 and a support surface 12 disposed opposite to each other along a first direction. The mounting surface 11 includes a first plane 111 and a second plane 112. The support surface 12 includes a first sub-surface 121 and a second sub-surface 122 connected together. The second sub-surface 122 and the first sub-surface 121 have a first included angle. The orthographic projection of the first sub-surface 121 on the mounting surface 11 along the first direction overlaps with the first plane 111. The orthographic projection of the second sub-surface 122 on the mounting surface 11 along the first direction overlaps with the second plane 112. The first direction is the thickness direction of the armature 1 and is the direction from the support surface 12 to the mounting surface 11.

[0045] The first connecting frame 21 intersects with the mounting surface 11. The second connecting frame 22 includes a connected mounting plate 23 and a limiting bracket 24. The connection between the mounting plate 23 and the limiting bracket 24 has a second bend 25. The bending angle of the second bend 25 and the angle of the first included angle are both obtuse angles. The mounting plate 23 is fixedly connected to the first plane 111. The second bend 25 abuts against the first plane 111 and the second plane 112. The limiting bracket 24 has a limiting cavity, and at least part of the armature 1 is located in the limiting cavity.

[0046] In this embodiment, since the connecting bracket 2 includes a first connecting frame 21 and a second connecting frame 22 connected together, and the connection between the first connecting frame 21 and the second connecting frame 22 has a first bend 210, when the armature spring assembly provided in this embodiment is applied to a vacuum relay, the first connecting frame 21 can be connected to the transmission rod 300 of the vacuum relay, and the armature 1 can be abutted against the electromagnetic component 100 of the vacuum relay. The first bend 210 formed between the first connecting frame 21 and the second connecting frame 22 provides normally open pressure, so that when the electromagnetic component 100 is energized, the electromagnetic component 100 generates magnetism, thereby causing the armature 1 to rotate. The armature 1 can then drive the bracket body to move, thereby the bracket body drives the first connecting frame 21 and the second connecting frame 22 to move, so that the first connecting frame 21 and the second connecting frame 22 drive the transmission rod 300 to move, thereby closing the normally open contact 002 of the vacuum relay. Furthermore, since the armature 1 has a mounting surface 11 and a supporting surface 12 arranged opposite to each other along a first direction, the mounting surface 11 includes a first plane 111 and a second plane 112, and the supporting surface 12 includes a first sub-surface 121 and a second sub-surface 122 connected together, with a first included angle between the second sub-surface 122 and the first sub-surface 121, the orthographic projection of the first sub-surface 121 along the first direction on the mounting surface 11 overlaps with the first plane 111, and the orthographic projection of the second sub-surface 122 along the first direction on the mounting surface 11 overlaps with the second plane 112, the first connecting frame 21 intersects with the mounting surface 11, and the second connecting frame 22 includes a first sub-surface 121 and a second sub-surface 122 connected together along the first direction. The mounting plate 23 and the limiting bracket 24 are connected. The connection between the mounting plate 23 and the limiting bracket 24 has a second bend 25. The bending angle of the second bend 25 and the angle of the first included angle are both obtuse angles. Therefore, the bending point between the first sub-surface 121 and the second sub-surface 122 and the second bend 25 are in a relative position in the first direction. This ensures that the pivot point of the armature 1 is located at the bend of the first sub-surface 121 and the second sub-surface 122, that is, the pivot point of the armature 1 and the pivot point of the second bend 25 are consistent in the first direction, ensuring that the pivot point of the armature 1 is always in contact with the magnetic cylinder 110 when it moves. In this way, the normally closed pressure can be provided by the second bend 25, and pressure can be applied to the armature 1 to ensure the contact surface between the armature 1 and the magnetic cylinder 110. The second bend 25 allows the connecting bracket 2 to deform, reducing the rigidity of the connecting bracket 2, thereby reducing the operating voltage of the vacuum relay and avoiding the problem of high operating voltage of the vacuum relay. This ensures that the operating voltage of the vacuum relay is low and saves energy.

[0047] In summary, in the armature spring assembly provided in this application embodiment, the first bending portion 210 provides normally open pressure, and the second bending portion 25 provides normally closed pressure, while simultaneously applying pressure to the armature 1 to ensure the contact surface between the armature 1 and the magnetic cylinder 110. In addition, the bending angle of the second bending portion 25 and the first included angle between the first sub-surface 121 and the second sub-surface 122 are both obtuse angles. Therefore, the bending direction of the second sub-surface 122 in contact with the magnetic cylinder 110 is the same as the bending direction of the second bending portion 25. Thus, the second bending portion 25 allows the second sub-surface 122 of the armature 1 to contact the magnetic cylinder 110 while stabilizing the magnetic gap between the first sub-surface 121 and the magnetic cylinder 110, so that the connecting bracket 2 remains stable during movement.

[0048] In related technologies, the connecting bracket 1 includes a bracket body with a U-shaped bending structure in the middle and a connecting protrusion at the tail. The U-shaped bending structure connects to the connecting protrusion, which abuts against the armature 1. The bracket body has mounting holes through which it is mounted on the armature 1. During the energization and de-energization of the electromagnetic component 100 in the vacuum relay, the connecting protrusion needs to abut against the armature 1 and exert force on it. However, the connecting protrusion is rigid and not easily deformed, resulting in a large pressure exerted by the protrusion on the armature 11. This leads to a large deformation pressure, resulting in a larger voltage required to energize the electromagnetic component 100 to provide a greater operating voltage.

[0049] Based on the above problems, in this embodiment, the connecting bracket 2 is configured as an integral structure. The first bend 210 between the first connecting bracket 21 and the second connecting bracket 22 provides normally open pressure, and the second bend 25 at the connection between the mounting plate 23 and the limiting bracket 24 provides normally closed pressure. During the movement of the armature 1, the second bend 25 at the connection between the mounting plate 23 and the limiting bracket 24 allows for deformation of the connecting bracket 2, thus solving the above problems. It should be noted that both the first connecting bracket 21 and the second connecting bracket 22 are frame-shaped plate structures. The mounting plate 23 included in the second connecting bracket 22 can be connected to the first plane 111 of the armature 1 by riveting, threaded connection, snap-fitting, or welding. This embodiment does not limit this. During installation, the mounting plate 23 needs to be fixedly connected to the first plane 111, allowing the mounting plate 23 to move with the armature 1. During this displacement, the bending angle of the second bend 25 changes. In addition, the limiting bracket 24 can be a frame structure, which can at least partially cover the part of the armature 1 away from the first connecting frame 21 so that force can be applied to the armature 1.

[0050] Furthermore, it should be noted that in this embodiment, the support surface 12 of the armature 1 includes a first sub-surface 121 and a second sub-surface 122 connected together, with a first included angle between the first sub-surface 121 and the second sub-surface 122. The first sub-surface 121 is parallel to the first plane 111, and the second sub-surface 122 intersects with the second plane 112. The first plane 111 is the plane provided for connecting and fixing the mounting plate 23, and the second plane 112 is the plane for mounting the limiting bracket 24. Thus, since the orthographic projection of the first sub-surface 121 along the first direction on the mounting surface 11 overlaps with the first plane 111, and the orthographic projection of the second sub-surface 122 along the first direction on the mounting surface 11 overlaps with the second plane 112, it can be ensured that the bending point and the second bending portion 25 between the first sub-surface 121 and the second sub-surface 122 are in relative positions in the first direction. Afterwards, by applying pressure to the armature 1 through the second bend 25 formed between the limiting bracket 24 and the mounting plate 23, it can be ensured that the pivot point of the armature 1 is located at the bend of the first sub-face 121 and the second sub-face 122.

[0051] In addition, in some embodiments, at least one connecting arm 26 is provided between the mounting plate 23 and the limiting bracket 24. The connection portion of the connecting arm 26 and the limiting bracket 24 forms a second bending portion 25. The dimension of the connecting arm 26 in the second direction is smaller than the dimension of the mounting plate 23 in the second direction. The second direction intersects with the first direction and the extension direction of the connecting arm 26.

[0052] In this embodiment, the connecting arm 26 is a strip-shaped plate structure. Since the connection between the connecting arm 26 and the limiting bracket 24 forms a second bend 25, and the dimension of the connecting arm 26 in the second direction is smaller than that of the mounting plate 23 in the second direction, it is not only easy to deform the connection between the connecting arm 26 and the limiting bracket 24 by external force, that is, to easily change the bending angle of the second bend 25, but also to change the flexibility of the second bend 25 at the connection between the connecting arm 26 and the limiting bracket 24 by adjusting the dimension of the connecting arm 26 in the second direction, thereby controlling the force value and thus satisfying the adjustment of the normally closed pressure. In other words, when the armature spring assembly provided in this embodiment is applied to different types of vacuum relays, the design requirements of the normally closed pressure of different types of vacuum relays can be met by replacing the connecting bracket 2 of different specifications and sizes, which is beneficial for the mass production of vacuum relays. It should be noted that there can be one or more connecting arms 26. When there are multiple connecting arms 26, they can be spaced apart along the second direction; this embodiment does not limit this.

[0053] It should be noted that, in this embodiment, the third direction is the direction that intersects both the first direction and the second direction, and is consistent with the extension direction of the mounting plate 23. The first direction can be as follows: Figure 1 The direction shown by Z in the diagram, the second direction can be as follows: Figure 1 The direction shown by Y in the figure can be a third direction such as Figure 1 The direction indicated by X in the middle.

[0054] In addition, in some embodiments, the limiting bracket 24 is a frame structure, and the limiting bracket 24 includes at least a first limiting surface, a second limiting surface and a third limiting surface. The first limiting surface, the second limiting surface and the third limiting surface form a limiting cavity. The first limiting surface intersects with a first direction, the second limiting surface and the third limiting surface intersect with a second direction, the second direction intersects with the first direction, and the second direction is consistent with the width direction of the armature 1.

[0055] In this embodiment, since the pressure bracket includes a frame-shaped structure, the limiting bracket 24 includes at least a first limiting surface, a second limiting surface, and a third limiting surface. The first limiting surface, the second limiting surface, and the third limiting surface form a limiting cavity. Furthermore, the first limiting surface intersects with a first direction, and the second and third limiting surfaces intersect with a second direction. Therefore, at least three surfaces of the armature 1 can be limited by the first limiting surface, the second limiting surface, and the third limiting surface, respectively, to ensure the relative position of the armature 1 remains stable, thereby improving the stability of the armature spring assembly during vibration and impact.

[0056] In some embodiments, the limiting bracket 24 includes a limiting plate 241, a first side plate 242, and a second side plate 243. The first side plate 242 is disposed at the first end of the limiting plate 241, and the second side plate 243 is disposed at the second end of the limiting plate 241. The plane of the first side plate 242 intersects the plane of the limiting plate 241, and the plane of the second side plate 243 intersects the plane of the limiting plate 241. The first end and the second end are two opposite ends of the limiting plate 241 in the second direction. The limiting plate 241, the first side plate 242, and the second side plate 243 form a limiting cavity.

[0057] In this embodiment, since the first side plate 242 is disposed at the first end of the limiting plate 241 and the second side plate 243 is disposed at the second end of the limiting plate 241, the plane where the first side plate 242 is located intersects the plane where the limiting plate 241 is located, and the plane where the second side plate 243 is located intersects the plane where the limiting plate 241 is located. Therefore, the limiting plate 241, the first side plate 242 and the second side plate 243 can at least cover the outer surface of the end of the armature 1 away from the first connecting frame 21, so that the end of the armature 1 away from the first connecting frame 21 in a third direction is covered by the frame-shaped structure formed by the limiting plate 241, the first side plate 242 and the second side plate 243, so as to increase the limiting area of ​​the armature 1 by the limiting plate 241, the first side plate 242 and the second side plate 243.

[0058] In addition, in some embodiments, the limiting plate 241 is inclined relative to the second plane 112, and there is a gap between the limiting plate 241 and the second plane 112.

[0059] In this embodiment, since the limiting plate 241 is inclined relative to the second plane 112, there is a gap between the limiting plate 241 and the second plane 112, thus creating a cavity between the limiting plate 241 and the second plane 112. This cavity provides space for deformation at the connection between the limiting plate 241 and the mounting plate 23. The larger deformation between the limiting plate 241 and the mounting plate 23 provides greater pressure to the armature 1, further ensuring that the contact area between the armature 1 and the magnetic cylinder 110 remains in close contact. The cavity between the limiting plate 241 and the second plane 112 also provides movement space for the end of the armature 1 that is away from the first connecting frame 21 in a third direction during movement, ensuring smooth movement of the armature 1 without jamming. It should be noted that the inclined setting of the limiting plate 241 relative to the second plane 112 can be understood as the end of the limiting plate 241 away from the mounting plate 23 extending towards the mounting surface 11 away from the armature 1, causing the limiting plate 241 to tilt upwards. In this way, when the limiting plate 241 moves towards the second plane 112, the bending angle of the second bend 25 formed between the limiting plate 241 and the mounting plate 23 changes. That is, during the process of the vacuum relay changing from the normally open state to the normally closed state, the pivot point of the armature 1 is always located at the bend of the first sub-plane 121 and the second sub-plane 122, ensuring that the pivot of the armature 1 is always in contact with the magnetic cylinder 110 during movement, thus ensuring the magnetic conductivity of the magnetic cylinder 110. At the same time, the limiting plate 241 is inclined relative to the second plane 112. This can be understood as the end of the limiting plate 241 away from the mounting plate 23 extending towards the mounting surface 11 away from the armature 1, causing the limiting plate 241 to tilt upwards. Thus, during the process of the vacuum relay changing from the normally closed state to the normally open state, the cavity between the limiting plate 241 and the second plane 112 provides swing space for the end of the armature 1 away from the first connecting frame 21 in the third direction during movement, ensuring smooth movement of the armature 1 and preventing jamming.

[0060] In addition, in some embodiments, the armature 1 includes a first sidewall and a second sidewall, which are two sidewalls of the armature 1 opposite to each other in a second direction. The first sidewall and the first side plate 242 are disposed opposite to each other and are fitted with a gap. The second sidewall and the second side plate 243 are disposed opposite to each other and are fitted with a gap.

[0061] In this embodiment, since the armature 1 includes a first sidewall and a second sidewall, the first sidewall and the second sidewall are two opposite sidewalls of the armature 1 in the second direction. The first sidewall and the first side plate 242 are arranged opposite each other and are fitted with a gap. The second sidewall and the second side plate 243 are arranged opposite each other and are fitted with a gap. Therefore, the armature 1 is limited between the first side plate 242 and the second side plate 243, so that the relative position of the armature 1 in the first direction is limited by the first side plate 242 and the second side plate 243, which further improves the stability of the armature spring assembly during vibration and impact.

[0062] In some embodiments, the limiting bracket 24 further includes a first support plate 244 and a second support plate 245. The first support plate 244 is connected to the end of the first side plate 242 away from the limiting plate 241, and the plane of the first support plate 244 intersects the plane of the first side plate 242. The second support plate 245 is connected to the end of the second side plate 243 away from the limiting plate 241, and the plane of the second support plate 245 intersects the plane of the second side plate 243.

[0063] Since the limiting bracket 24 also includes a first support plate 244 and a second support plate 245, the first support plate 244 is connected to the end of the first side plate 242 away from the limiting plate 241, and the plane of the first support plate 244 intersects the plane of the first side plate 242. The second support plate 245 is connected to the end of the second side plate 243 away from the limiting plate 241, and the plane of the second support plate 245 intersects the plane of the second side plate 243. Therefore, after the connecting bracket 2 is applied to the vacuum relay, the vacuum relay has an armature 1 and an electromagnetic component 100. The armature 1 is located on the top wall of one end of the electromagnetic component 100. After the connecting bracket 2 is installed on the armature 1, the first support plate 244 and the second support plate 245 can be fixedly connected to the top wall of one end of the electromagnetic component 100. Under the action of the second bending portion 25, force is applied to the armature 1, so that after the electromagnetic component 100 of the vacuum relay is de-energized, the limiting bracket 24 can ensure that the armature 1 returns to its initial position.

[0064] In some embodiments, the first support plate 244 extends in a direction away from the first side plate 242, and the second support plate 245 extends in a direction away from the second side plate 243.

[0065] In this embodiment, since the first support plate 244 extends away from the first side plate 242 and the second support plate 245 extends away from the second side plate 243, the pressure applied to the first support plate 244 and the second support plate 245 can be transferred to the magnetic cylinder 110 away from the armature 1. Since the forces are mutual, the force applied to the magnetic cylinder 110 by the first support plate 244 and the second support plate 245 is increased. At the same time, the welding area between the limiting bracket 24 and the magnetic cylinder 110 can be increased by the first support plate 244 and the second support plate 245, thereby increasing the stability between the connecting bracket 2 and the magnetic cylinder 110.

[0066] In addition, in some embodiments, the bending angle of the second bending portion 25 is equal to the angle of the first included angle.

[0067] In this embodiment, since the bending angle of the second bending portion 25 is equal to the angle of the first included angle, the tilt angle of the second sub-face 122 is consistent with the tilt angle of the limiting bracket 24. This maximizes the force applied by the second bending portion 25 to the armature 1, and ensures that the surfaces of the second sub-face 122 and the magnetic cylinder 110 are completely in contact when the vacuum relay is in the normally closed state.

[0068] This application also provides a vacuum relay, such as... Figures 6 to 8 As shown, the vacuum relay includes an electromagnetic component 100 and an armature reed assembly as described in any of the above embodiments; the electromagnetic component 100 includes an electromagnetic coil 120 and a magnetic cylinder 110, with the electromagnetic coil 120 disposed in the magnetic cylinder 110; the connecting bracket 2 and the magnetic cylinder 110 are fixedly connected, and when the electromagnetic component 100 is de-energized, the second sub-face 122 and the end face of the magnetic cylinder 110 facing the armature 1 abut against each other, and the first sub-face 121 and the end face of the magnetic cylinder 110 facing the armature 1 have a first preset angle between them.

[0069] In this embodiment, since the connecting bracket 2 includes a first connecting frame 21 and a second connecting frame 22 connected together, and the connection between the first connecting frame 21 and the second connecting frame 22 has a first bend 210, when the armature spring assembly provided in this embodiment is applied to a vacuum relay, the first connecting frame 21 can be connected to the transmission rod 300 of the vacuum relay, and the armature 1 can be abutted against the electromagnetic component 100 of the vacuum relay. The first bend 210 formed between the first connecting frame 21 and the second connecting frame 22 provides normally open pressure, so that when the electromagnetic component 100 is energized, the electromagnetic component 100 generates magnetism, thereby causing the armature 1 to rotate. The armature 1 can then drive the bracket body to move, thereby the bracket body drives the first connecting frame 21 and the second connecting frame 22 to move, so that the first connecting frame 21 and the second connecting frame 22 drive the transmission rod 300 to move, thereby closing the normally open contact 002 of the vacuum relay. Furthermore, since the armature 1 has a mounting surface 11 and a supporting surface 12 arranged opposite to each other along a first direction, the mounting surface 11 includes a first plane 111 and a second plane 112, and the supporting surface 12 includes a first sub-surface 121 and a second sub-surface 122 connected together, with a first included angle between the second sub-surface 122 and the first sub-surface 121, the orthographic projection of the first sub-surface 121 along the first direction on the mounting surface 11 overlaps with the first plane 111, and the orthographic projection of the second sub-surface 122 along the first direction on the mounting surface 11 overlaps with the second plane 112, the first connecting frame 21 and the mounting... The surfaces 11 intersect, and the second connecting frame 22 includes a connected mounting plate 23 and a limiting bracket 24. The connection between the mounting plate 23 and the limiting bracket 24 has a second bend 25. The bending angle of the second bend 25 and the angle of the first included angle are both obtuse angles. Therefore, the bending point between the first sub-surface 121 and the second sub-surface 122 and the second bend 25 are in a relative position in the first direction, so that the pivot point of the armature 1 is located at the bend of the first sub-surface 121 and the second sub-surface 122, ensuring that the pivot of the armature 1 is always in contact with the magnetic cylinder 110 when it moves. In this way, the normally closed pressure can be provided by the second bend 25, and pressure can be applied to the armature 1 to ensure the contact surface between the armature 1 and the magnetic cylinder 110. The second bend 25 allows the connecting bracket 2 to deform, reducing the rigidity of the connecting bracket 2, thereby reducing the operating voltage of the vacuum relay and avoiding the problem of high operating voltage of the vacuum relay. This ensures that the operating voltage of the vacuum relay is small and saves energy.

[0070] It should be noted that the vacuum relay in the above embodiments may include an electromagnetic component 100 and an armature spring assembly in any of the above embodiments. The armature spring assembly includes a connecting bracket 2. The electromagnetic component 100 includes a magnetic cylinder 110 and an electromagnetic coil 120. The electromagnetic coil 120 is disposed in the magnetic cylinder 110, and the armature 1 is disposed on the end face of the magnetic cylinder 110 facing the armature 1.

[0071] The vacuum relay may further include a housing 200, with normally open contact 002 and normally closed contact 001 disposed within the housing 200, and a transmission rod 300 disposed within the housing 200. A connecting bracket 2 is mounted on the mounting surface 11 and is connected to the transmission rod 300. Specifically, in this embodiment, the component connected to the transmission rod 300 is the first connecting frame 21. When the electromagnetic coil 120 is energized, the electromagnetic coil 120 generates magnetism, thereby causing the armature 1 to move. The first sub-surface 121 of the armature 1 support surface 12 abuts against the top wall of one end of the magnetic cylinder 110. At the same time, the transmission rod 300 moves to the normally open contact 002, making the vacuum relay normally open. As the position of the armature 1 changes, the armature 1 applies force to the second connecting frame 22. When the electromagnetic coil 120 is de-energized, the armature 1 resets. Under the pressure of the second bend 25 at the connection between the mounting plate 23 and the limiting bracket 24, the second sub-surface 122 of the armature 1 abuts against the end face of the magnetic cylinder 110 facing the armature 1. The transmission rod 300 moves to the normally closed contact 001, making the vacuum relay normally closed.

[0072] It should be noted that the normally open pressure in this embodiment is the pressure that can close the normally open contact 002 and keep the contact closed, while the normally closed pressure in this embodiment is the pressure that can close the normally closed contact 001 and keep the contact closed.

[0073] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0074] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An armature spring assembly, characterized by The armature spring assembly comprises an armature and a connecting bracket; The connecting bracket comprises a first connecting frame and a second connecting frame connected together, and a first bending portion is formed at the connection between the first connecting frame and the second connecting frame; The armature has a mounting surface and a supporting surface arranged opposite to each other along a first direction, the mounting surface comprises a first plane and a second plane, the supporting surface comprises a first sub-surface and a second sub-surface connected together, a first included angle is formed between the second sub-surface and the first sub-surface, a projection of the first sub-surface on the mounting surface along the first direction overlaps the first plane, and a projection of the second sub-surface on the mounting surface along the first direction overlaps the second plane, wherein the first direction is a thickness direction of the armature and a direction in which the supporting surface points to the mounting surface; An extension direction of the first connecting frame intersects the mounting surface, the second connecting frame comprises a mounting plate and a limiting bracket connected together, a second bending portion is formed at the connection between the mounting plate and the limiting bracket, the bending angle of the second bending portion and the angle of the first included angle are obtuse angles, the mounting plate is fixedly connected to the first plane, the second bending portion is pressed between the first plane and the second plane, and the limiting bracket has a limiting cavity in which at least part of the armature is located.

2. The armature spring assembly of claim 1, wherein, At least one connecting arm is arranged between the mounting plate and the limiting bracket; A connecting portion of the connecting arm and the limiting bracket constitutes the second bending portion; A dimension of the connecting arm in a second direction is smaller than a dimension of the mounting plate in the second direction, wherein the second direction intersects the first direction, and the second direction intersects an extension direction of the connecting arm.

3. The armature spring assembly of claim 1, wherein, The limiting bracket has a frame-shaped structure and comprises a first limiting surface, a second limiting surface and a third limiting surface, and the first limiting surface, the second limiting surface and the third limiting surface enclose the limiting cavity, wherein the first limiting surface intersects the first direction, the second limiting surface and the third limiting surface intersect a second direction, the second direction intersects the first direction, and the second direction is consistent with a width direction of the armature.

4. The armature spring assembly of claim 3, wherein, The limiting bracket comprises a limiting plate, a first side plate and a second side plate; The first side plate is arranged at a first end of the limiting plate, the second side plate is arranged at a second end of the limiting plate, a plane in which the first side plate is arranged intersects a plane in which the limiting plate is arranged, and a plane in which the second side plate is arranged intersects the plane in which the limiting plate is arranged, wherein the first end and the second end are two ends of the limiting plate opposite to each other in the second direction; The limiting plate, the first side plate and the second side plate enclose the limiting cavity.

5. The armature spring assembly of claim 4, wherein, The limiting plate is arranged obliquely relative to the second plane, and a gap is formed between the limiting plate and the second plane.

6. The armature spring assembly of claim 4, wherein, The armature comprises a first side wall and a second side wall, and the first side wall and the second side wall are two side walls of the armature opposite to each other in the second direction; The first side wall and the first side plate are oppositely arranged and are in clearance fit, and the second side wall and the second side plate are oppositely arranged and are in clearance fit.

7. The armature spring assembly of claim 4, wherein, The limiting support further comprises a first support plate and a second support plate; The first support plate is connected to the end of the first side plate away from the limiting plate, and the plane of the first support plate intersects with the plane of the first side plate; The second support plate is connected to the end of the second side plate away from the limiting plate, and the plane of the second support plate intersects with the plane of the second side plate.

8. The armature spring assembly of claim 7, wherein, The first support plate extends away from the first side plate, and the second support plate extends away from the second side plate.

9. The armature spring assembly of claim 1, wherein, The bending angle of the second bending part is equal to the angle of the first included angle.

10. A vacuum relay, characterized by The vacuum relay comprises an electromagnetic assembly and the armature spring assembly as claimed in any one of claims 1-9; The electromagnetic assembly comprises an electromagnetic coil and a magnetic conducting cylinder, and the electromagnetic coil is arranged in the magnetic conducting cylinder; The connecting support and the magnetic conducting cylinder are fixedly connected, and when the electromagnetic assembly is in a power-off state, the second sub-face and the end face of the magnetic conducting cylinder abut against the armature, and the first sub-face and the end face of the magnetic conducting cylinder have a first preset included angle.

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