An armature reed assembly and a vacuum relay

Abstract

The present application discloses an armature reed assembly and a vacuum relay, belonging to the field of vacuum relays. The armature reed assembly includes a connecting bracket including a first connecting bracket and a second connecting bracket connected to each other, and the connection between the first connecting bracket and the second connecting bracket has a first bending portion; the armature has a mounting surface and a supporting surface arranged opposite to each other along a first direction. The extension direction of the first connecting bracket intersects with the mounting surface, and the second connecting bracket includes a connected mounting plate and a limiting bracket, and the connection between the mounting plate and the limiting bracket has a second bending portion, and the bending angle of the second bending portion and the angle of the first angle are both obtuse angles, and the mounting plate is fixedly connected to the first plane, and the second bending portion is pressed between the first plane and the second plane, and the limiting bracket has a limiting cavity, and at least part of the armature is located in the limiting cavity. In this way, the second bending portion allows the connecting bracket to deform, reducing the rigidity of the connecting bracket, thereby reducing the operating voltage of the vacuum relay.

Description

Technical Field

[0001] The present application belongs to the field of vacuum relays, and specifically relates to an armature reed assembly and a vacuum relay. Background Art

[0002] In the electrical engineering industry, relays are widely used as a control device. They have a control system (also known as an input circuit) and a controlled system (also known as an output circuit), and are usually used in automatic control circuits. Relays are actually an "automatic switch" that uses a smaller current to control a larger current. Therefore, they play the role of automatic regulation, safety protection, and circuit conversion in the circuit.

[0003] In the related art, the support frame in the vacuum relay is connected to the armature, and the support frame can drive the armature to move. However, in the related art, the convex bump at the tail of the support frame is too rigid and not easy to deform, resulting in a large operating voltage of the vacuum relay. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide an armature reed assembly and a vacuum relay, which at least solves the problem that the convex bump at the rear of the support frame is too rigid and not easily deformed, resulting in a large operating voltage of the vacuum relay.

[0005] In a first aspect, an embodiment of the present application provides an armature reed assembly, the armature reed assembly comprising: an armature and a connecting bracket;

[0006] The connecting bracket comprises a first connecting frame and a second connecting frame connected to each other, and a connecting portion between the first connecting frame and the second connecting frame has a first bending portion;

[0007] The armature has a mounting surface and a supporting surface which are 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 which are connected, a first included angle is formed between the second sub-surface and the first sub-surface, an orthographic projection of the first sub-surface on the mounting surface along the first direction overlaps with the first plane, and an orthographic projection of the second sub-surface on the mounting surface along the first direction overlaps with the second plane, wherein the first direction is a thickness direction of the armature and is a direction in which the supporting surface points 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 bending portion, the bending angle of the second bending portion and the angle of the first angle are both 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, the limiting bracket has a limiting cavity, and at least part 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 connecting portion between the connecting arm and the limiting bracket constitutes the second bending portion;

[0011] A dimension of the connecting arm in the second direction is smaller than a dimension of the mounting plate in the second direction, wherein the second direction intersects with the first direction, and the second direction intersects with an extending direction of the connecting arm.

[0012] Optionally, the limit bracket is a frame-shaped structure, and the limit bracket includes at least a first limit surface, a second limit surface and a third limit surface, and the first limit surface, the second limit surface and the third limit surface form the limit cavity, wherein the first limit surface intersects with the first direction, the second limit surface, the third limit surface and the second direction intersect, 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 arranged at the first end of the limiting plate, the second side plate is arranged at the second end of the limiting plate, the plane where the first side plate is located intersects with the plane where the limiting plate is located, and the plane where the second side plate is located intersects with the plane where the limiting plate is located, wherein 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 surround the limiting cavity.

[0016] Optionally, the limiting plate is arranged to be 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 side wall and a second side wall, and the first side wall and the second side wall are two side walls of the armature that are opposite to each other in the second direction;

[0018] The first side wall and the first side plate are arranged opposite to each other, and a clearance fit is formed between the first side wall and the first side plate; the second side wall and the second side plate are arranged opposite to each other, and a clearance fit is formed between the second side wall 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 where the first support plate is located intersects with the plane where the first side plate is located;

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

[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 bending portion is equal to the first angle.

[0024] In a second aspect, an embodiment of the present application provides a vacuum relay, the vacuum relay comprising an electromagnetic assembly and an armature reed assembly as described in any one of the first aspects above;

[0025] The electromagnetic assembly comprises an electromagnetic coil and a magnetic conductive cylinder, wherein the electromagnetic coil is arranged in the magnetic conductive cylinder;

[0026] The connecting bracket is fixedly connected to the magnetic tube. When the electromagnetic assembly is in a power-off state, the second sub-surface abuts against the end surface of the magnetic tube facing the armature, and a first preset angle is formed between the first sub-surface and the end surface of the magnetic tube facing the armature.

[0027] In the embodiment of the present application, when the armature reed assembly in the embodiment of the present application is applied to a vacuum relay, normally-open pressure can be provided through the first bending portion, normally-closed pressure can be provided through the second bending portion, and pressure can be applied to the armature at the same time to ensure the fitting surface between the armature and the magnetic tube. In addition, the armature has a mounting surface and a supporting surface which are 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 which are connected, a first angle is formed between the second sub-surface and the first sub-surface, the orthographic projection of the first sub-surface on the mounting surface along the first direction overlaps with the first plane, the orthographic projection of the second sub-surface on the mounting surface along the first direction overlaps with the second plane, the first connecting frame and the mounting surface intersect, 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 bending portion, the bending angle of the second bending portion and the angle of the first angle are both obtuse angles, so that the bending direction of the second sub-surface in contact with the magnetic cylinder body is the same as the bending direction of the second bending portion, and the bending point between the first sub-surface and the second sub-surface and the second bending portion are in relative positions in the first direction, so that the rotation axis point of the armature is at the bending point of the first sub-surface and the second sub-surface, ensuring that the rotation axis is always in contact when the armature moves. That is, the second bending portion allows the second sub-surface of the armature to fit with the magnetic tube, while stabilizing the magnetic gap between the first sub-surface and the magnetic tube, so that the connecting bracket remains stable during movement. In addition, the second bending portion can provide a normally closed pressure, and at the same time, apply pressure to the armature to ensure the fitting surface between the armature and the magnetic tube, and the second bending portion can deform the connecting bracket to reduce the rigidity of the connecting bracket, thereby reducing the operating voltage of the vacuum relay, avoiding the problem of high operating voltage of the vacuum relay, and ensuring that the operating voltage of the vacuum relay is small, saving electric energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 A schematic diagram showing the structure of an armature reed assembly provided in an embodiment of the present application;

[0030] Figure 2 A schematic diagram showing the structure of a connecting bracket included in an armature reed assembly provided in an embodiment of the present application;

[0031] Figure 3 A schematic diagram showing a cross-sectional structure of a connecting bracket included in an armature reed assembly provided in an embodiment of the present application;

[0032] Figure 4 A schematic diagram showing the structure of an armature included in an armature reed assembly provided in an embodiment of the present application;

[0033] Figure 5 A schematic diagram showing a cross-sectional structure of an armature included in an armature reed assembly provided in an embodiment of the present application;

[0034] Figure 6 A schematic diagram showing a vacuum relay provided in an embodiment of the present application;

[0035] Figure 7 One of the cross-sectional views of a vacuum relay provided in an embodiment of the present application is shown;

[0036] Figure 8 The second cross-sectional view shows a vacuum relay provided in an embodiment of the present application.

[0037] Reference numerals:

[0038] 001: normally closed contact; 002: normally open contact; 1: armature; 11: mounting surface; 111: first plane; 112: second plane; 12: supporting surface; 121: first sub-surface; 122: second sub-surface; 2: connecting bracket; 21: first connecting frame; 210: first bending portion; 22: second connecting frame; 23: mounting plate; 24: limiting bracket; 241: limiting plate; 242: first side plate; 243: second side plate; 244: first supporting plate; 245: second supporting plate; 25: second bending portion; 26: connecting arm; 100: electromagnetic assembly; 110: magnetic tube; 120: electromagnetic coil; 200: housing; 300: transmission rod; X: third direction; Y: second direction; Z: first direction. DETAILED DESCRIPTION

[0039] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0041] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] like Figures 1 to 5 As shown, the armature reed 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 to each other. A first bending portion 210 is provided at a connection point between the first connecting frame 21 and the second connecting frame 22 .

[0044] The armature 1 has a mounting surface 11 and a support surface 12 which are arranged back to back 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 which are connected, a first angle being provided 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, the orthographic projection of the second sub-surface 122 along the first direction on the mounting surface 11 overlaps with the second plane 112, wherein the first direction is the thickness direction of the armature 1, and is the direction in which the support surface 12 points to the mounting surface 11.

[0045] The first connecting frame 21 intersects with the mounting surface 11, 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 bending portion 25, and the bending angle of the second bending portion 25 and the first angle are both obtuse angles. The mounting plate 23 is fixedly connected to the first plane 111, and the second bending portion 25 is pressed between 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 the embodiment of the present application, since the connecting bracket 2 includes a first connecting frame 21 and a second connecting frame 22 connected to each other, and the connection between the first connecting frame 21 and the second connecting frame 22 has a first bending portion 210, when the armature reed assembly provided in the embodiment of the present application 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, and the first bending portion 210 formed between the first connecting frame 21 and the second connecting frame 22 provides a normally open pressure, so that when the electromagnetic component 100 is energized, the electromagnetic component 100 generates magnetism so that the armature 1 rotates, and the armature 1 can drive the bracket body to move, so that 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, so that the normally open contact 002 of the vacuum relay is closed. Since the armature 1 has a mounting surface 11 and a supporting surface 12 which are arranged opposite to each other along the first direction, the mounting surface 11 includes a first plane 111 and a second plane 112, the supporting surface 12 includes a first sub-surface 121 and a second sub-surface 122 which are connected, and a first angle is formed between the second sub-surface 122 and the first sub-surface 121, the orthographic projection of the first sub-surface 121 on the mounting surface 11 along the first direction overlaps with the first plane 111, and 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 connecting frame 21 intersects with the mounting surface 11, and the second connecting frame 22 includes a first connecting frame 21 and a second connecting frame 22 which are connected to each other. The mounting plate 23 and the limiting bracket 24 are connected, and the connection between the mounting plate 23 and the limiting bracket 24 has a second bending portion 25, and the bending angle of the second bending portion 25 and the first angle are both obtuse angles, so that the bending point between the first sub-surface 121 and the second sub-surface 122 and the second bending portion 25 are in relative positions in the first direction, so that the rotation axis point of the armature 1 is at the bending point of the first sub-surface 121 and the second sub-surface 122, that is, the rotation axis point of the armature 1 and the rotation axis point of the second bending portion 25 are consistent in the first direction, ensuring that the rotation axis of the armature 1 always fits the magnetic tube 110 when the armature 1 moves. In this way, the normally closed pressure can be provided by the second bending portion 25, and pressure can be applied to the armature 1 at the same time to ensure the fitting surface between the armature 1 and the magnetic tube 110, and the second bending portion 25 can be used to deform the connecting bracket 2, reduce the rigidity of the connecting bracket 2, and then reduce the action voltage of the vacuum relay, avoid the problem of large action voltage of the vacuum relay, and then ensure that the action voltage of the vacuum relay is small, saving electric energy.

[0047] To summarize, in the armature spring assembly provided in the embodiment of the present application, normally-open pressure is provided by the first bending portion 210, normally-closed pressure is provided by the second bending portion 25, and pressure is applied to the armature 1 at the same time to ensure the fitting surface between the armature 1 and the magnetic tube 110. In addition, the bending angle of the second bending portion 25 and the first 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 tube 110 is the same as the bending direction of the second bending portion 25. Furthermore, the second bending portion 25 allows the second sub-surface 122 of the armature 1 to fit with the magnetic tube 110, while stabilizing the magnetic gap between the first sub-surface 121 and the magnetic tube 110, so that the connecting bracket 2 remains stable during movement.

[0048] In the related art, the connecting bracket 1 includes a bracket body, a U-shaped bending structure is provided in the middle of the bracket body, a connecting convex bulge is provided at the tail of the bracket body, the U-shaped bending structure is connected to the connecting convex bulge, the connecting convex bulge is used to abut against the armature 1, and a mounting hole is provided on the bracket body, and the bracket body is mounted on the armature 1 through the mounting hole. During the process of powering on and off of the electromagnetic assembly 100 in the vacuum relay, the connecting convex bulge needs to abut against the armature 1 and apply force to the armature 1, but the connecting convex bulge has high rigidity and is not easy to deform, resulting in a large pressure applied by the convex bulge to the armature 11, which in turn leads to a large deformation action pressure, resulting in a large voltage when the electromagnetic assembly 100 is powered on to provide a larger action voltage.

[0049] Based on the above problems, in the embodiment of the present application, by setting the connecting bracket 2 as an integrated structure, the first bending portion 210 between the first connecting frame 21 and the second connecting frame 22 provides a normally open pressure, and the second bending portion 25 provided at the connection between the mounting plate 23 and the limiting bracket 24 provides a normally closed pressure. During the movement of the armature 1, since the connection between the mounting plate 23 and the limiting bracket 24 has a second bending portion 25, the second bending portion 25 can be used to achieve the deformation of the connecting bracket 2 to solve the above problems. It should be noted that the first connecting frame 21 and the second connecting frame 22 are both frame-shaped plate structures, and the mounting plate 23 included in the second connecting frame 22 can be connected to the first plane 111 of the armature 1 by riveting, threading, clamping or welding, etc., and the embodiment of the present application does not limit this. During installation, it is necessary to make the mounting plate 23 fixedly connected to the first plane 111, so that the mounting plate 23 can be displaced with the movement of the armature 1, and in the process of displacement, the bending angle of the second bending portion 25 changes. In addition, the limiting bracket 24 may be a frame-shaped structure, and at least partially covers a portion of the armature 1 away from the first connecting frame 21 , so as to apply force to the armature 1 .

[0050] In addition, it should be noted that, in the embodiment of the present application, the support surface 12 of the armature 1 includes a first sub-surface 121 and a second sub-surface 122 connected to each other, and a first angle is formed 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 a plane provided for connecting and fixing the mounting plate 23, and the second plane 112 is a plane for mounting the limit bracket 24. In this way, since the orthographic projection of the first sub-surface 121 on the mounting surface 11 along the first direction overlaps with the first plane 111, and the orthographic projection of the second sub-surface 122 on the mounting surface 11 along the first direction overlaps with the second plane 112, it can be ensured that the bending point between the first sub-surface 121 and the second sub-surface 122 and the second bending portion 25 are in relative positions in the first direction. Afterwards, after pressure is applied to the armature 1 through the second bending portion 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 bending point between the first sub-surface 121 and the second sub-surface 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, and the connecting portion between the connecting arm 26 and the limiting bracket 24 constitutes a second bending portion 25, and 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, wherein the second direction intersects with the first direction, and the second direction intersects with the extension direction of the connecting arm 26.

[0052] In this embodiment, the connecting arm 26 is a strip plate structure. Since the connecting part of the connecting arm 26 and the limiting bracket 24 constitutes the second bending part 25, the size of the connecting arm 26 in the second direction is smaller than the size of the mounting plate 23 in the second direction, so it is not only convenient to deform the connecting part of the connecting arm 26 and the limiting bracket 24 by external force, that is, it is convenient to change the bending angle of the second bending part 25, but also the size of the connecting arm 26 in the second direction can be adjusted to change the flexibility of the second bending part 25 of the connecting part of the connecting arm 26 and the limiting bracket 24, so as to achieve the control of the force value, thereby meeting the adjustment of the normally closed pressure. In other words, when the armature reed assembly provided in the embodiment of the invention of the present invention 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 brackets 2 of different specifications and sizes, which is conducive to the mass production of vacuum relays. It should be noted that the connecting arm 26 can be one or more. In the case of multiple connecting arms 26, multiple connecting arms 26 can be arranged at intervals along the second direction, and the embodiment of the present application does not limit this.

[0053] It should be noted that the third direction in the embodiment of the present application is a 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 figure, the second direction can be Figure 1 The direction indicated by Y in the figure, the third direction can be as follows Figure 1 The direction indicated by X.

[0054] In addition, in some embodiments, the limiting bracket 24 is a frame-shaped structure, and the limiting bracket 24 includes at least 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 form a limiting cavity, wherein the first limiting surface intersects with the first direction, the second limiting surface, 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 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 surround a limiting cavity, and the first limiting surface intersects with the first direction, and the second limiting surface, the third limiting surface and the second direction are opposite, so that 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, so as to ensure that the relative position of the armature 1 is stable, so as to improve the stability of the armature spring assembly during vibration and impact.

[0056] In addition, 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 arranged at the first end of the limiting plate 241, and the second side plate 243 is arranged at the second end of the limiting plate 241, the plane where the first side plate 242 is located intersects with the plane where the limiting plate 241 is located, and the plane where the second side plate 243 is located intersects with the plane where the limiting plate 241 is located, wherein the first end and the second end are two opposite ends of the limiting plate 241 in the second direction, and 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 arranged at the first end of the limiting plate 241 and the second side plate 243 is arranged at the second end of the limiting plate 241, the plane where the first side plate 242 is located intersects with the plane where the limiting plate 241 is located, and the plane where the second side plate 243 is located intersects with 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 the 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 tilted 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 limit plate 241 is tilted relative to the second plane 112, there is a gap between the limit plate 241 and the second plane 112, so that there is a cavity between the limit plate 241 and the second plane 112, so that the cavity between the limit plate 241 and the second plane 112 can provide space for the deformation of the connection between the limit plate 241 and the mounting plate 23, and the larger deformation between the limit plate 241 and the mounting plate 23 provides a greater pressure to the armature 1, further ensuring that the contact part between the armature 1 and the magnetic tube 110 is always in contact, and the cavity between the limit plate 241 and the second plane 112 provides a space for the end of the armature 1 away from the first connecting frame 21 in the third direction during the movement, ensuring that the armature 1 moves smoothly without jamming. It should be noted that the limit plate 241 is tilted relative to the second plane 112, which can be understood as the end of the limit plate 241 away from the mounting plate 23 extends in the direction away from the mounting surface 11 of the armature 1, so that the limit plate 241 is upturned. In this way, when the limit plate 241 moves toward the direction close to the second plane 112, the bending angle of the second bending portion 25 formed between the limit plate 241 and the mounting plate 23 can be changed, that is, in the process of the vacuum relay being converted from the normally open state to the normally closed state, the rotation axis point of the armature 1 is always at the bending point of the first sub-surface 121 and the second sub-surface 122, ensuring that the rotation axis of the armature 1 always fits the magnetic tube 110 during movement, ensuring the magnetic conductivity of the magnetic tube 110. At the same time, the limit plate 241 is inclined relative to the second plane 112, which can be understood as the end of the limit plate 241 away from the mounting plate 23 extending in the direction away from the mounting surface 11 of the armature 1, so that the limit plate 241 is tilted upward, so that in the process of the vacuum relay being converted from the normally closed state to the normally open state, the cavity between the limit plate 241 and the second plane 112 provides a swing space for the end of the armature 1 away from the first connecting frame 21 in the third direction during movement, ensuring that the armature 1 moves smoothly without jamming.

[0060] In addition, in some embodiments, the armature 1 includes 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 1 opposite to each other in the second direction, the first side wall and the first side plate 242 are arranged opposite to each other, and a gap fit is formed between the first side wall and the first side plate 242, and the second side wall and the second side plate 243 are arranged opposite to each other, and a gap fit is formed between the second side wall and the second side plate 243.

[0061] In this embodiment, since the armature 1 includes a first side wall and a second side wall, the first side wall and the second side wall are two side walls opposite to each other in the second direction of the armature 1, the first side wall and the first side plate 242 are arranged opposite to each other, and the first side wall and the first side plate 242 are gap-fitted, the second side wall and the second side plate 243 are arranged opposite to each other, and the second side wall and the second side plate 243 are gap-fitted, so that 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, thereby further improving the stability of the armature spring assembly during vibration impact.

[0062] In addition, in some embodiments, 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 where the first support plate 244 is located intersects with the plane where the first side plate 242 is located, and 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 where the second support plate 245 is located intersects with the plane where the second side plate 243 is located.

[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, the plane where the first support plate 244 is located intersects with the plane where the first side plate 242 is located, and 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 where the second support plate 245 is located intersects with the plane where the second side plate 243 is located. Therefore, after the connecting bracket 2 is applied to the vacuum relay, the vacuum relay has an armature 1 and an electromagnetic assembly 100, and the armature 1 is located on the top wall of one end of the electromagnetic assembly 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 assembly 100, and under the action of the second bending portion 25, force is applied to the armature 1, so that after the electromagnetic assembly 100 of the vacuum relay is powered off, the limiting bracket 24 can ensure that the armature 1 returns to its initial position.

[0064] In addition, 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 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, the pressure applied to the first support plate 244 and the second support plate 245 can be transferred to the magnetic tube 110 in a direction away from the armature 1. In addition, the force is mutual, so that the force applied to the magnetic tube 110 by the first support plate 244 and the second support plate 245 is increased. At the same time, the welding area between the limit bracket 24 and the magnetic tube 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 tube 110.

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

[0067] In this embodiment, since the bending angle of the second bending portion 25 is equal to the first angle, the inclination angle of the second sub-surface 122 is consistent with the inclination angle of the limiting bracket 24, so that the downward pressure applied by the second bending portion 25 to the armature 1 can be maximized, and when the vacuum relay is in the normally closed state, it can ensure that the second sub-surface 122 and the surface of the magnetic tube 110 are completely in contact.

[0068] The present application also provides a vacuum relay, such as Figures 6 to 8 As shown, the vacuum relay includes an electromagnetic assembly 100 and an armature reed assembly in any of the above embodiments; the electromagnetic assembly 100 includes an electromagnetic coil 120 and a magnetic tube 110, and the electromagnetic coil 120 is arranged in the magnetic tube 110; the connecting bracket 2 and the magnetic tube 110 are fixedly connected, and when the electromagnetic assembly 100 is in a power-off state, the second sub-surface 122 and the end surface of the magnetic tube 110 facing the armature 1 are abutted, and the first sub-surface 121 and the end surface of the magnetic tube 110 facing the armature 1 have a first preset angle.

[0069] In the embodiment of the present application, since the connecting bracket 2 includes a first connecting frame 21 and a second connecting frame 22 connected to each other, and the connection between the first connecting frame 21 and the first connecting frame 21 has a first bending portion 210, when the armature reed assembly provided in the embodiment of the present application 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, and the first bending portion 210 formed between the first connecting frame 21 and the second connecting frame 22 provides a normally open pressure, so that when the electromagnetic component 100 is energized, the electromagnetic component 100 generates magnetism so that the armature 1 rotates, and the armature 1 can drive the bracket body to move, so that 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, so that the normally open contact 002 of the vacuum relay is closed. Since the armature 1 has a mounting surface 11 and a supporting surface 12 which are arranged opposite to each other along the 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 which are connected, and a first angle is formed between the second sub-surface 122 and the first sub-surface 121, and the orthographic projection of the first sub-surface 121 on the mounting surface 11 along the first direction overlaps with the first plane 111, and 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 connecting frame 21 and the mounting The first and second sub-surfaces 121 and 122 intersect with each other, 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 bending portion 25. The bending angle of the second bending portion 25 and the first angle are both obtuse angles. Therefore, the bending point between the first sub-surface 121 and the second sub-surface 122 and the second bending portion 25 are in relative positions in the first direction, so that the rotation axis point of the armature 1 is at the bending point of the first sub-surface 121 and the second sub-surface 122, ensuring that the rotation axis of the armature 1 always fits the magnetic tube 110 when the armature 1 moves. In this way, the normally closed pressure can be provided by the second bending portion 25, and pressure can be applied to the armature 1 at the same time to ensure the fitting surface between the armature 1 and the magnetic tube 110. The second bending portion 25 can deform the connecting bracket 2, reduce the rigidity of the connecting bracket 2, and then reduce the action voltage of the vacuum relay, avoid the problem of large action voltage of the vacuum relay, and then ensure that the action voltage of the vacuum relay is small, saving electric energy.

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

[0071] The vacuum relay may further include a housing 200, the normally open contact 002 and the normally closed contact 001 may be disposed in the housing 200, and the transmission rod 300 is disposed in the housing 200. The connecting bracket 2 is mounted on the mounting surface 11, and the connecting bracket 2 is connected to the transmission rod 300. Specifically in the embodiment of the present application, 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, and the first sub-surface 121 of the support surface 12 of the armature 1 abuts against the top wall of one end of the magnetic tube 110. At the same time, the transmission rod 300 moves to the normally open contact 002, so that the vacuum relay is normally open, and 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 is reset, and the second bending portion 25 at the connection between the mounting plate 23 and the limit bracket 24 presses against the armature 1, so that the second sub-surface 122 of the armature 1 abuts against the end face of the magnetic tube 110 facing the armature 1, and the transmission rod 300 moves to the normally closed contact 001, so that the vacuum relay is normally closed.

[0072] It should be noted that the normally open pressure in the embodiment of the present application is the pressure that can close the normally open contact 002 and maintain the contact closed state, and the normally closed pressure in the embodiment of the present application is the pressure that can close the normally closed contact 001 and maintain the contact closed state.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

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

Claims

1. An armature spring assembly, characterized in that: The armature reed assembly comprises: an armature and a connecting bracket; The connecting bracket comprises a first connecting frame and a second connecting frame connected to each other, and a connecting portion between the first connecting frame and the second connecting frame has a first bending portion; The armature has a mounting surface and a supporting surface which are 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 which are connected, a first included angle is formed between the second sub-surface and the first sub-surface, an orthographic projection of the first sub-surface on the mounting surface along the first direction overlaps with the first plane, and an orthographic projection of the second sub-surface on the mounting surface along the first direction overlaps with the second plane, wherein the first direction is a thickness direction of the armature and is a direction in which the supporting surface points to the mounting surface; 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 bending portion, the bending angle of the second bending portion and the angle of the first angle are both 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, the limiting bracket has a limiting cavity, and at least part of the armature is located in the limiting cavity.

2. The armature reed assembly according to claim 1, characterized in that: At least one connecting arm is provided between the mounting plate and the limiting bracket; The connecting portion between the connecting arm and the limiting bracket constitutes the second bending portion; A dimension of the connecting arm in the second direction is smaller than a dimension of the mounting plate in the second direction, wherein the second direction intersects with the first direction, and the second direction intersects with an extending direction of the connecting arm.

3. The armature reed assembly according to claim 1, characterized in that: The limiting bracket is a frame-shaped structure, and the limiting bracket includes at least 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 form the limiting cavity, wherein the first limiting surface intersects with the first direction, the second limiting surface, 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.

4. The armature reed assembly according to claim 3, characterized in that: The limiting bracket includes a limiting plate, a first side plate and a second side plate; The first side plate is arranged at the first end of the limiting plate, the second side plate is arranged at the second end of the limiting plate, the plane where the first side plate is located intersects with the plane where the limiting plate is located, and the plane where the second side plate is located intersects with the plane where the limiting plate is located, wherein the first end and the second end are two opposite ends of the limiting plate in the second direction; The limiting plate, the first side plate and the second side plate surround the limiting cavity.

5. The armature reed assembly according to claim 4, characterized in that: The limiting plate is arranged to be inclined relative to the second plane, and there is a gap between the limiting plate and the second plane.

6. The armature reed assembly according to claim 4, characterized in that: The armature comprises a first side wall and a second side wall, wherein 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 arranged opposite to each other, and a clearance fit is formed between the first side wall and the first side plate; the second side wall and the second side plate are arranged opposite to each other, and a clearance fit is formed between the second side wall and the second side plate.

7. The armature reed assembly according to claim 4, characterized in that: The limiting bracket also includes 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 where the first support plate is located intersects with the plane where the first side plate is located; The second supporting plate is connected to the end of the second side plate away from the limiting plate, and the plane where the second supporting plate is located intersects with the plane where the second side plate is located.

8. The armature reed assembly according to claim 7, characterized in that: 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.

9. The armature reed assembly according to claim 1, characterized in that: The bending angle of the second bending portion is equal to the first angle.

10. A vacuum relay, characterized in that: The vacuum relay comprises an electromagnetic assembly and an armature reed assembly as claimed in any one of claims 1 to 9; The electromagnetic assembly comprises an electromagnetic coil and a magnetic conductive cylinder, wherein the electromagnetic coil is arranged in the magnetic conductive cylinder; The connecting bracket is fixedly connected to the magnetic tube. When the electromagnetic assembly is in a power-off state, the second sub-surface abuts against the end surface of the magnetic tube facing the armature, and a first preset angle is formed between the first sub-surface and the end surface of the magnetic tube facing the armature.

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