Auxiliary contact assembly, relay and method for mounting an auxiliary contact assembly

Abstract

The application provides an auxiliary contact assembly, a relay and a mounting method of the auxiliary contact assembly, and relates to the technical field of electric power. The auxiliary contact assembly comprises an auxiliary static contact lead-out end and an auxiliary moving spring piece, the auxiliary moving spring piece is in contact or separation with the auxiliary static contact lead-out end; wherein the auxiliary static contact lead-out end is a bending structure, so that the auxiliary static contact lead-out end and the auxiliary moving spring piece are configured to be able to convert between a normally open structure and a normally closed structure. By using a group of auxiliary moving spring pieces and the auxiliary static contact lead-out end, the application of two modes can be realized, and the production cost is saved.

Description

Technical Field

[0001] This invention generally relates to the field of power technology, and more specifically, to an auxiliary contact assembly, a relay, and a method for installing the auxiliary contact assembly. Background Technology

[0002] A relay is an electronic control device commonly used in automatic control circuits. A relay consists of a control system and a controlled system; the control system is also called the input circuit, and the controlled system is also called the output circuit. Essentially, a relay is an "automatic switch" that uses a small current to control a larger current, playing roles such as automatic adjustment, safety protection, and circuit switching in a circuit. High-voltage DC relays are relays capable of handling high power. Even under harsh conditions such as high voltage and high current, they possess reliability and long service life unmatched by conventional relays, and are widely used in fields such as new energy vehicles.

[0003] With the development of new energy vehicles, auxiliary contacts are used to monitor and record the closed and open states of relay main contacts to improve relay reliability. However, existing high-voltage DC relays have complex auxiliary contact structures, large sizes, and are difficult to manufacture. They also experience high contact stress, affecting the reliability of on-board relays and potentially causing serious accidents due to relay failure during vehicle operation. Furthermore, the short lifespan of these relays and frequent replacements negatively impact user experience. Additionally, they cannot be configured separately for normally open and normally closed relays, hindering flexible switching between the two modes and resulting in high production costs. Summary of the Invention

[0004] This invention provides an auxiliary contact assembly, a relay, and an installation method for the auxiliary contact assembly, enabling flexible switching between normally open and normally closed modes and reducing production costs.

[0005] According to a first aspect of the present invention, an auxiliary contact assembly is provided, comprising:

[0006] Auxiliary stationary contact lead-out end;

[0007] An auxiliary moving spring is used to contact or separate from the auxiliary stationary contact lead-out end;

[0008] The auxiliary stationary contact lead-out end has a bent structure, which allows the auxiliary stationary contact lead-out end and the auxiliary moving spring to be configured to switch between a normally open structure and a normally closed structure.

[0009] In some embodiments, the auxiliary stationary contact lead-out end includes a first fixing part and a first contact part, and the auxiliary moving spring includes a second fixing part and a second contact part. The second contact part is used to contact or separate from the first contact part, and the first fixing part and the second contact part are arranged along a first direction.

[0010] Wherein, the first direction is the direction in which the auxiliary moving spring moves relative to the auxiliary stationary contact lead-out end.

[0011] In some embodiments, the first contact portion and the second contact portion have a contact force when they come into contact, and the direction of the contact force intersects with the first direction;

[0012] In some embodiments, the first fixing portion extends along the first direction.

[0013] In some embodiments, the first contact portion is inclined relative to the first direction; and / or,

[0014] The second contact portion is inclined relative to the second direction, wherein the second direction is the length direction of the auxiliary moving spring, and the first direction and the second direction are perpendicular to each other.

[0015] In some embodiments, the first contact portion and the second contact portion are in point-to-surface contact.

[0016] In some embodiments, the first contact portion has a contact arc surface on the side facing the auxiliary moving spring, the contact arc surface being able to contact the auxiliary moving spring and slide relative to the auxiliary moving spring.

[0017] In some embodiments, the auxiliary stationary contact lead-out terminal further includes:

[0018] A bending portion is disposed between the first fixing portion and the first contact portion, and the bending portion and the first fixing portion are arranged at an angle to form the bending structure.

[0019] In some embodiments, the included angle between the bent portion and the first fixing portion is an acute angle, a right angle, or an obtuse angle.

[0020] In some embodiments, the first fixing part, the bending part, and the first contact part are integrally formed.

[0021] In some embodiments, the auxiliary stationary contact lead-out terminal includes an auxiliary normally open stationary contact lead-out terminal, the auxiliary moving spring is provided with an auxiliary moving contact, and the auxiliary normally open stationary contact lead-out terminal is provided with an auxiliary normally open stationary contact corresponding to the auxiliary moving contact; and / or,

[0022] The auxiliary stationary contact lead-out terminal includes an auxiliary normally closed stationary contact lead-out terminal, the auxiliary moving spring is provided with an auxiliary moving contact, and the auxiliary normally closed stationary contact lead-out terminal is provided with an auxiliary normally closed stationary contact corresponding to the auxiliary moving contact.

[0023] The auxiliary normally open stationary contact lead-out terminal and the auxiliary normally closed stationary contact lead-out terminal are configured to be switchable.

[0024] In some embodiments, the bent portion of the auxiliary stationary contact lead-out end is disposed on the side of the auxiliary moving spring along the first direction and away from the first fixing portion, forming the auxiliary normally open stationary contact lead-out end; and / or,

[0025] The bent portion of the auxiliary stationary contact lead-out end is disposed on one side of the auxiliary moving spring along the first direction and toward the first fixing portion, forming the auxiliary normally closed stationary contact lead-out end.

[0026] In some embodiments, the bent portion of the auxiliary stationary contact lead-out end is bent along the second direction and toward the second fixing portion to form the auxiliary normally open stationary contact lead-out end; and / or, the bent portion of the auxiliary stationary contact lead-out end is bent along the second direction and away from the auxiliary moving spring to form the auxiliary normally closed stationary contact lead-out end.

[0027] Wherein, the second direction is the length direction of the auxiliary moving spring, and the first direction and the second direction are perpendicular to each other.

[0028] In some embodiments, the distance between the central axes of the first fixing portion and the second fixing portion of the auxiliary normally open stationary contact lead-out terminal is greater than the distance between the central axes of the first fixing portion and the second fixing portion of the auxiliary normally closed stationary contact lead-out terminal.

[0029] In some embodiments, the distance between the central axes of the first and second fixing portions of the auxiliary normally open stationary contact lead-out terminal is greater than the distance between the edge of the auxiliary moving spring along the length direction of the auxiliary moving spring and the central axis of the second fixing portion; and / or,

[0030] The distance between the central axes of the first and second fixed portions of the auxiliary normally closed stationary contact lead-out terminal is less than the distance between the edge of the auxiliary moving spring along the length direction of the auxiliary moving spring and the central axis of the second fixed portion.

[0031] In some embodiments, the first fixing part and the bending part are separate structures.

[0032] In some embodiments, the first fixing part is an lead-out pin, and the bending part is a sheet structure.

[0033] In some embodiments, the bent portion of the auxiliary normally open stationary contact lead-out is a U-shaped structure, with the open end of the U-shaped structure facing the auxiliary moving spring, and the auxiliary moving spring being at least partially disposed within the U-shaped structure; and / or,

[0034] The bent portion of the auxiliary normally closed stationary contact lead-out end is a U-shaped structure, with the open end of the U-shaped structure facing away from the auxiliary moving spring, and the auxiliary moving spring being located outside the U-shaped structure.

[0035] In some embodiments, the number of auxiliary stationary contact leads is multiple, and the multiple auxiliary stationary contact leads are disposed around the auxiliary moving spring, and the multiple auxiliary stationary contact leads are respectively disposed on both sides of the auxiliary moving spring along the width direction of the moving spring; and / or,

[0036] The number of auxiliary stationary contact leads is multiple, and the multiple auxiliary stationary contact leads are arranged around the auxiliary moving spring, and the multiple auxiliary stationary contact leads are arranged on both sides of the auxiliary moving spring along the length direction of the moving spring.

[0037] In some embodiments, there are multiple auxiliary stationary contact leads, which are arranged diagonally around the auxiliary moving spring.

[0038] According to a second aspect of the invention, a relay is also provided, including the auxiliary contact assembly described above.

[0039] In some embodiments, a yoke plate and a pushing assembly are also included, wherein the auxiliary stationary contact lead-out end of the auxiliary contact assembly is disposed on the yoke plate, the auxiliary moving spring of the auxiliary contact assembly is disposed on the pushing assembly, and the pushing assembly passes through the yoke plate and is movable relative to the yoke plate.

[0040] In some embodiments, the auxiliary moving spring and the pushing assembly are integrally formed.

[0041] According to a third aspect of the present invention, a method for installing an auxiliary contact assembly is also provided, the method comprising the following steps:

[0042] Fabricate an auxiliary stationary contact lead-out end with a bent section;

[0043] By adjusting the position of the bent portion relative to the auxiliary moving spring, the auxiliary contact assembly can be switched between a normally open structure and a normally closed structure.

[0044] In some embodiments, adjusting the position of the bending portion relative to the auxiliary moving spring includes the following steps:

[0045] Adjust at least one of the following: the height of the bent portion relative to the auxiliary moving spring along the first movement direction, the distance of the bent portion relative to the auxiliary moving spring along the length direction of the auxiliary moving spring, and the bending direction of the bent portion relative to the auxiliary moving spring, wherein the first direction is the direction in which the auxiliary moving spring moves relative to the auxiliary stationary contact lead-out end.

[0046] The embodiments of the present invention have the following advantages or beneficial effects:

[0047] The auxiliary contact assembly and relay provided in this invention feature a bent auxiliary stationary contact lead-out end. Through the interaction between the auxiliary moving spring and the auxiliary stationary contact lead-out end, the auxiliary stationary contact lead-out end and the auxiliary moving spring can be switched between normally open and normally closed structures. Using only one set of auxiliary moving spring and auxiliary stationary contact lead-out end, both application modes can be achieved, saving production costs.

[0048] The installation method of the auxiliary contact assembly provided in this embodiment of the invention does not require any modification to the structure of the auxiliary moving spring. It only requires adjusting the position of the bent part relative to the auxiliary moving spring to realize the conversion between the normally open and normally closed structures of the auxiliary contact assembly. The installation process is simple and reduces the cost of original materials and installation. Attached Figure Description

[0049] To better understand the present invention, reference may be made to the embodiments shown in the following drawings. Components in the drawings are not necessarily to scale, and related elements may be omitted to emphasize and clearly illustrate the technical features of the invention. Furthermore, related elements or components may have different arrangements as known in the art. Additionally, in the drawings, the same reference numerals denote the same or similar components in various figures. The above and other features and advantages of the present invention will become more apparent from a detailed description of exemplary embodiments thereof with reference to the accompanying drawings.

[0050] in:

[0051] Figure 1 The diagram shown is a schematic diagram of the normally open auxiliary contact assembly in the relay of Embodiment 1 of the present invention in the state of pushing the assembly to reset;

[0052] Figure 2 What is shown is Figure 1 Sectional view at AA;

[0053] Figure 3The diagram shown is a schematic diagram of the normally open auxiliary contact assembly in the relay of Embodiment 1 of the present invention in the disassembled state;

[0054] Figure 4 The diagram shown is a schematic diagram of the normally open auxiliary contact assembly in the relay of Embodiment 1 of the present invention in the state of pushing the assembly to operate;

[0055] Figure 5 What is shown is Figure 4 Sectional view at BB;

[0056] Figure 6 The diagram shown is a schematic diagram of the normally open auxiliary contact assembly in the relay of Embodiment 1 of the present invention in the contact state;

[0057] Figure 7 The diagram shown is a schematic diagram of the normally open auxiliary contact assembly in the relay of Embodiment 1 of the present invention;

[0058] Figure 8 The diagram shown is a schematic diagram of the normally closed auxiliary contact assembly in the relay of Embodiment 1 of the present invention in the reset state;

[0059] Figure 9 What is shown is Figure 8 Sectional view at CC;

[0060] Figure 10 The diagram shown is a schematic diagram of the normally closed auxiliary contact assembly in the relay of Embodiment 1 of the present invention in the state of pushing the assembly to reset;

[0061] Figure 11 The diagram shown is a schematic diagram of the auxiliary contact assembly of the normally closed structure in the relay of Embodiment 1 of the present invention in the contact state;

[0062] Figure 12 The diagram shown is a schematic diagram of the auxiliary contact assembly of the relay corresponding to the normally open structure in Embodiment 1 of the present invention;

[0063] Figure 13 The diagram shown is an exploded view of the auxiliary contact assembly of the relay corresponding to the normally open structure in Embodiment 1 of the present invention;

[0064] Figure 14 The diagram shown is a schematic diagram of the auxiliary contact assembly of the relay corresponding to the normally closed structure in Embodiment 1 of the present invention;

[0065] Figure 15 The diagram shown is an exploded view of the auxiliary contact assembly of the relay corresponding to the normally closed structure in Embodiment 1 of the present invention.

[0066] Figure 16The diagram shown is a structural schematic of the auxiliary contact assembly in the relay according to Embodiment 2 of the present invention. Figure 1 ;

[0067] Figure 17 The diagram shown is a structural schematic of the auxiliary contact assembly in the relay according to Embodiment 2 of the present invention. Figure 2 ;

[0068] Figure 18 The diagram shown is a structural schematic of the auxiliary contact assembly in the relay according to Embodiment 3 of the present invention. Figure 1 ;

[0069] Figure 19 The diagram shown is a structural schematic of the auxiliary contact assembly in the relay according to Embodiment 3 of the present invention. Figure 2 ;

[0070] Figure 20 The diagram shown is a partial structural schematic of the auxiliary contact assembly of the relay corresponding to the normally open structure in Embodiment 4 of the present invention;

[0071] Figure 21 The diagram shown is a cross-sectional view of the auxiliary contact assembly of the relay corresponding to the normally open structure in Embodiment 4 of the present invention;

[0072] Figure 22 The diagram shown is a schematic diagram of the normally open auxiliary contact assembly in the relay of Embodiment 4 of the present invention in the disassembled state;

[0073] Figure 23 The diagram shown is a partial structural schematic of the auxiliary contact assembly of the relay corresponding to the normally closed structure in Embodiment 4 of the present invention;

[0074] Figure 24 The diagram shown is a cross-sectional view of the auxiliary contact assembly of the relay corresponding to the normally closed structure in Embodiment 4 of the present invention;

[0075] Figure 25 The diagram shown is a schematic diagram of the auxiliary contact assembly of the normally closed structure in the relay of Embodiment 4 of the present invention in the separated state. Detailed Implementation

[0076] The technical solutions of the exemplary embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The exemplary embodiments described herein are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. Therefore, it should be understood that various modifications and changes can be made to the exemplary embodiments without departing from the scope of protection of the present invention.

[0077] In the description of this invention, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more; and the term "and / or" includes any and all combinations of one or more of the associated listed items. In particular, references to "the / described" object or "an" object are also intended to indicate one of a possible plurality of such objects.

[0078] Unless otherwise specified or stated, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0079] Furthermore, in the description of this invention, it should be understood that the directional terms such as "upper," "lower," "inner," and "outer" described in the exemplary embodiments of this invention are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the exemplary embodiments of this invention. It should also be understood that, in the context of an element or feature being connected to another element (one or more) "upper," "lower," "inner," or "outer," it can be directly connected to the other element (one or more) "upper," "lower," "inner," or "outer," or indirectly connected to the other element (one or more) "upper," "lower," "inner," or "outer" through an intermediate element.

[0080] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that the invention will be thorough and complete, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0081] Example 1

[0082] This embodiment provides an auxiliary contact assembly 5, applicable to the field of relay technology. For example... Figures 1-11 As shown, the auxiliary contact assembly 5 includes an auxiliary stationary contact lead-out end 51 and an auxiliary moving spring 52, the auxiliary moving spring 52 being used to contact or separate from the auxiliary stationary contact lead-out end 51. The auxiliary stationary contact lead-out end 51 has a bent structure, so that the auxiliary stationary contact lead-out end 51 and the auxiliary moving spring 52 are configured to switch between a normally open structure and a normally closed structure.

[0083] The auxiliary contact assembly 5 provided in this embodiment has an auxiliary stationary contact lead-out end 51 configured as a bent structure. Through the interaction between the auxiliary moving spring 52 and the auxiliary stationary contact lead-out end 51, the auxiliary stationary contact lead-out end 51 and the auxiliary moving spring 52 can be switched between normally open and normally closed structures. Using only one set of auxiliary moving spring 52 and auxiliary stationary contact lead-out end 51, both application modes can be achieved, saving production costs.

[0084] It is understandable that the auxiliary contact assembly 5 may have only a normally open structure, or only a normally closed structure, or may have both normally open and normally closed structures.

[0085] In one embodiment, the auxiliary moving spring 52 has a shape similar to a long strip. The direction of movement of the auxiliary moving spring 52 relative to the auxiliary stationary contact lead-out end 51 is defined as the first direction, which is identified by D1. The length direction of the auxiliary moving spring 52 is defined as the second direction, which is identified by D2. The width direction of the auxiliary moving spring 52 is defined as the third direction, which is identified by D3. The first direction, the second direction, and the third direction are perpendicular to each other. The first direction, the second direction, and the third direction only represent spatial directions and have no substantial meaning.

[0086] In one embodiment, the auxiliary stationary contact lead-out end 51 includes a first fixing part 5111 and a first contact part 5115, and the auxiliary moving spring 52 includes a second fixing part 523 and a second contact part 524. The second contact part 524 is used to contact or separate from the first contact part 5115, and the first fixing part 5111 and the second contact part 524 are arranged along a first direction.

[0087] The position of the first fixing part 5111 is relatively fixed. The first fixing part 5111 and the second contact part 524 are arranged along the first direction and in the vertical direction. However, the first fixing part 5111 and the second contact part 524 are not in contact with each other. Instead, the first contact part 5115 and the second contact part 524 can be in contact because the auxiliary stationary contact lead-out end 51 is a bent structure.

[0088] It should be noted that there can be multiple first contact portions 5115 and second contact portions 524, or multiple contacts can be provided on the first contact portion 5115 and the second contact portion 524, or multiple contacts can be provided on one contact portion and cooperate with another contact portion to form an auxiliary multi-contact structure, where multiple means two or more.

[0089] In one embodiment, the first fixing part 5111 extends along the first direction. That is, the first fixing part 5111 is essentially a needle-shaped structure arranged in the vertical direction.

[0090] In one embodiment, the first contact portion 5115 and the second contact portion 524 have a contact force when they come into contact, and the direction of the contact force intersects with the first direction.

[0091] The contact force between the first contact portion 5115 and the second contact portion 524 can be decomposed into a component force F1 in the first direction and a component force F2 in the direction perpendicular to the first direction. This reduces the force on the auxiliary moving spring 52, prevents the second contact portion 524 of the auxiliary moving spring 52 from being damaged or severely worn, and improves the life and reliability of the auxiliary moving spring 52.

[0092] In one embodiment, the first contact portion 5115 is inclined relative to the first direction, so that the direction of the contact force intersects with the first direction.

[0093] Since the first fixing part 5111 extends along the first direction, if the first fixing part 5111 and the first contact part 5115 are collinear, then there is a point contact between the first contact part 5115 and the second contact part 524 of the auxiliary moving spring 52, and the contact force is vertically concentrated on the second contact part 524, which can easily cause contact damage. The first contact part 5115 is inclined relative to the first direction, and the first fixing part 5111 and the first contact part 5115 are not collinear, but there is a certain inclination angle between them, so that there is an angle between the first contact part 5115 and the second contact part 524. The contact force can be decomposed into a component force F1 in the first direction and a component force F2 in the direction perpendicular to the first direction, which reduces the possibility of damage or wear to the second contact part 524 of the auxiliary moving spring 52, and improves the life and reliability of the auxiliary moving spring 52.

[0094] In one embodiment, the second contact portion 524 is inclined relative to the second direction, such that the direction of the contact force intersects with the first direction.

[0095] In other words, the second contact portion 524 does not extend along a standard horizontal direction. The second contact portion 524 has a certain tilt angle relative to the second direction, which facilitates the contact between the first contact portion 5115 and the second contact portion 524.

[0096] In this configuration, the auxiliary moving spring 52 is bent at both ends along the second direction toward the auxiliary stationary contact lead-out end 51 to form an auxiliary moving contact. This method improves the contact reliability between the auxiliary moving spring 52 and the auxiliary stationary contact lead-out end 51, while also reducing the assembly steps of the auxiliary moving spring 52 and the auxiliary moving contact, thus saving production costs.

[0097] In one embodiment, the first contact portion 5115 and the second contact portion 524 are in point contact. During point contact, the contact force intersects with the first direction, and the contact force can be decomposed into a component force F1 in the first direction and a component force F2 perpendicular to the first direction. This reduces the likelihood of damage or wear to the second contact portion 524 of the auxiliary moving spring 52, further improving the lifespan and reliability of the auxiliary moving spring 52.

[0098] In one embodiment, such as Figures 2-11 As shown, the auxiliary stationary contact lead-out end 51 also includes a bending portion 5112, which is disposed between the first fixing portion 5111 and the first contact portion 5115. The bending portion 5112 and the first fixing portion 5111 are arranged at an angle to form a bent structure.

[0099] It should be noted that the angle formed between the bent portion 5112 and the first fixed portion 5111, making the auxiliary stationary contact lead-out end 51 a bent structure as a whole, does not mean that the bent portion 5112 itself has a certain bending angle.

[0100] In one embodiment, the included angle between the bent portion 5112 and the first fixing portion 5111 is an acute angle, a right angle, or an obtuse angle.

[0101] In this embodiment, the included angle between the bent portion 5112 and the first fixed portion 5111 is an acute angle. At this time, the end of the bent portion 5112 away from the first fixed portion 5111 is the free end. The area between the connection between the bent portion 5112 and the first fixed portion 5111 and the free end provides sufficient contact position for the auxiliary moving spring 52.

[0102] If the auxiliary stationary contact lead-out terminal 51 has a needle-shaped structure, when the auxiliary moving spring 52 and the auxiliary stationary contact lead-out terminal 51 just come into contact during the overtravel process, the force exerted by the auxiliary stationary contact lead-out terminal 51 on the auxiliary moving spring 52 is a vertical force along the first direction. The auxiliary moving spring 52 is subjected to force at a single point, that is, it is only subjected to local force at the position corresponding to the auxiliary stationary contact lead-out terminal 51. During the long-term use of the relay, the auxiliary moving spring 52 and the auxiliary stationary contact lead-out terminal 51 are easily damaged at this position, affecting the service life.

[0103] To address this issue, the first contact portion 5115 provided in this embodiment has a contact arc surface 5110 (e.g., ...) on the side facing the auxiliary moving spring 52. Figure 6 As shown, the contact arc surface 5110 can contact the auxiliary moving spring 52 and slide relative to the auxiliary moving spring 52.

[0104] Specifically, the contact arc surface 5110 has an arc-shaped structure and is the contact position with the auxiliary moving spring 52. The force exerted by the contact arc surface 5110 on the auxiliary moving spring 52 is not a perpendicular force along the first direction, but a force perpendicular to the tangential direction between the contact arc surface 5110 and the auxiliary moving spring 52. This force F can be divided into a first force F1 along the first direction and a second force F2 along the second direction. Since the second force F2 is a horizontal component, reducing the vertical component of the first force F1 effectively reduces the pressure on the auxiliary moving spring 52 and improves the service life of the auxiliary moving spring 52.

[0105] In addition, the contact arc surface 5110 can slide relative to the auxiliary moving spring 52, and the bent part 5112 has a certain sliding trajectory during the contact process. That is, as the pushing component 4 moves, the contact position between the auxiliary moving spring 52 and the bent part 5112 continuously slides to form a linear trajectory. The contact position between the contact arc surface 5110 and the auxiliary moving spring 52 is not the same position, which reduces the single-point force and continuous force on the auxiliary moving spring 52, disperses the force position of the auxiliary moving spring 52, reduces the failure of the auxiliary moving spring 52, and extends the service life of the auxiliary moving spring 52.

[0106] In one embodiment, such as Figures 1-11 As shown, the first fixing part 5111 and the bending part 5112 are integrally formed structures.

[0107] Specifically, the end of the first fixing part 5111 away from the yoke plate 6 is bent relative to the first fixing part 5111 to form a bent part. The manufacturing process is simple, saves the part assembly process, and the production cost is relatively low.

[0108] In one embodiment, such as Figures 1-7 As shown, the auxiliary stationary contact lead-out terminal 51 includes an auxiliary normally open stationary contact lead-out terminal 511, the auxiliary moving spring 52 is provided with an auxiliary moving contact, and the auxiliary normally open stationary contact lead-out terminal 511 is provided with an auxiliary normally open stationary contact corresponding to the auxiliary moving contact.

[0109] Among them, the auxiliary moving contact and the auxiliary normally open stationary contact form an auxiliary normally open contact group. When the driving component and other moving parts are not activated or are in a reset state, the auxiliary moving contact and the auxiliary normally open stationary contact are in a separated state; when the driving component 4 and other moving parts are activated, the auxiliary moving contact and the auxiliary normally open stationary contact come into contact.

[0110] In one embodiment, such as Figures 8-11 The auxiliary stationary contact lead-out terminal 51 shown includes an auxiliary normally closed stationary contact lead-out terminal 510, and the auxiliary moving spring 52 is provided with an auxiliary moving contact. The auxiliary normally closed stationary contact lead-out terminal 510 is provided with an auxiliary normally closed stationary contact corresponding to the auxiliary moving contact.

[0111] The auxiliary moving contact and the auxiliary normally closed stationary contact form an auxiliary normally closed contact group. When the push component 4 is not activated or is in a reset state, the auxiliary moving contact and the auxiliary normally closed stationary contact are in contact. When the push component 4 is activated, the auxiliary moving contact and the auxiliary normally closed stationary contact are separated.

[0112] Of course, the auxiliary moving spring 52 and the auxiliary moving contact can be separately configured or integrally formed; the auxiliary normally open stationary contact lead-out end 511 and the auxiliary normally open stationary contact can be separately configured or integrally formed; the auxiliary normally closed stationary contact lead-out end 510 and the auxiliary normally closed stationary contact can be separately configured or integrally formed. Furthermore, this embodiment does not limit the specific contact form between the auxiliary moving spring 52 and the auxiliary stationary contact lead-out end 51. As long as contact or separation between the auxiliary moving spring 52 and the auxiliary stationary contact lead-out end 51 can be achieved, it is within the protection scope of this embodiment.

[0113] The auxiliary normally open stationary contact lead-out terminal 511 and the auxiliary normally closed stationary contact lead-out terminal 510 are configured to be switchable.

[0114] When the auxiliary contact assembly 5 needs to be switched from a normally open structure to a normally closed structure, it is only necessary to switch the auxiliary normally open stationary contact lead-out terminal 511 to the auxiliary normally closed stationary contact lead-out terminal 510; when the auxiliary contact assembly 5 needs to be switched from a normally closed structure to a normally open structure, it is only necessary to switch the auxiliary normally closed stationary contact lead-out terminal 510 to the auxiliary normally open stationary contact lead-out terminal 511. Using this method, the switching process is flexible and the production cost of mode switching is relatively low.

[0115] In one embodiment, such as Figures 1-7 As shown, the bent portion 5112 of the auxiliary stationary contact lead-out end 51 is disposed on the side of the auxiliary moving spring 52 along the first direction and away from the first fixed portion 5111, forming the auxiliary normally open stationary contact lead-out end 511. In other words, the bent portion 5112 of the auxiliary normally open stationary contact lead-out end 511 is disposed above the auxiliary moving spring 52 along the first direction.

[0116] In one embodiment, such as Figures 8-11 As shown, the bent portion 5112 of the auxiliary stationary contact lead-out end 51 is disposed on the side of the auxiliary moving spring 52 along the first direction and toward the first fixing portion 5111, forming the auxiliary normally closed stationary contact lead-out end 510. In other words, the bent portion 5112 of the auxiliary normally closed stationary contact lead-out end 510 is disposed below the auxiliary moving spring 52 along the first direction.

[0117] As the auxiliary moving spring 52 moves upward in the first direction, it gradually approaches the bent portion 5112 of the auxiliary normally open stationary contact lead-out end 511, causing the first contact portion 5115 and the second contact portion 524 to come into contact. As the auxiliary moving spring 52 gradually moves away from the bent portion 5112 of the auxiliary normally closed stationary contact lead-out end 510, the first contact portion 5115 and the second contact portion 524 separate.

[0118] Therefore, the switching between the auxiliary normally open stationary contact lead-out end 511 and the auxiliary normally closed stationary contact lead-out end 510 can be achieved by adjusting the height of the bent portion 5112 relative to the auxiliary moving spring 52 along the first direction. For example, by lowering the height of the bent portion 5112 of the auxiliary normally open stationary contact lead-out end 511 along the first direction, at least a portion of the auxiliary normally closed stationary contact lead-out end 510 can be obtained; by raising the height of the bent portion 5112 of the auxiliary normally closed stationary contact lead-out end 510 along the first direction, at least a portion of the auxiliary normally open stationary contact lead-out end 511 can be obtained.

[0119] In one embodiment, the bent portion 5112 of the auxiliary stationary contact lead-out end 51 is bent along the second direction and toward the second fixing portion 523 to form the auxiliary normally open stationary contact lead-out end 511. In other words, the bent portion 5112 of the auxiliary normally open stationary contact lead-out end 511 is disposed toward the auxiliary moving spring 52.

[0120] In one embodiment, the bent portion 5112 of the auxiliary stationary contact lead-out end 51 is bent along the second direction and away from the auxiliary moving spring 52 to form the auxiliary normally closed stationary contact lead-out end 510. In other words, the bent portion 5112 of the auxiliary normally closed stationary contact lead-out end 510 is disposed away from the auxiliary moving spring 52.

[0121] Therefore, the switching between the auxiliary normally open stationary contact lead-out end 511 and the auxiliary normally closed stationary contact lead-out end 510 can be achieved by adjusting the bending direction of the bending portion 5112 relative to the central axis of the second fixed portion 523. For example, by changing the bending portion 5112 of the auxiliary normally open stationary contact lead-out end 511 from a direction toward the central axis of the second fixed portion 523 to a direction away from the central axis of the second fixed portion 523, at least a partial auxiliary normally closed stationary contact lead-out end 510 can be obtained; by changing the bending portion 5112 of the auxiliary normally closed stationary contact lead-out end 510 from a direction away from the central axis of the second fixed portion 523 to a direction toward the central axis of the second fixed portion 523, at least a partial auxiliary normally open stationary contact lead-out end 511 can be obtained.

[0122] It should be noted that the bending direction of the bent portion 5112 of the auxiliary normally open stationary contact lead-out terminal 511 and the bent portion 5112 of the auxiliary normally closed stationary contact lead-out terminal 510 is different. In actual production, automatic inspection and error prevention can be carried out through design to prevent the auxiliary normally open stationary contact lead-out terminal and the auxiliary normally closed stationary contact lead-out terminal 510 from mixing, thus having a certain error prevention function.

[0123] In addition, the auxiliary normally open stationary contact lead-out terminal 511 and the auxiliary normally closed stationary contact lead-out terminal 510 are manufactured using the same mold, saving the cost of mold development. The orientation of the bent portion 5112 of the auxiliary normally open stationary contact lead-out terminal 511 and the auxiliary normally closed stationary contact lead-out terminal 510 can be adjusted by rotating the angle during installation and assembly.

[0124] In one embodiment, such as Figures 1-11 As shown, the distance between the central axes of the first fixing part 5111 and the second fixing part 523 of the auxiliary normally open stationary contact lead-out terminal 511 is greater than the distance between the central axes of the first fixing part 5111 and the second fixing part 523 of the auxiliary normally closed stationary contact lead-out terminal 510.

[0125] Therefore, the switching between the auxiliary normally open stationary contact lead-out end 511 and the auxiliary normally closed stationary contact lead-out end 510 can be achieved by adjusting the distance between the first fixing part 5111 and the central axis of the second fixing part 523. For example, by moving the first fixing part 5111 of the auxiliary normally open stationary contact lead-out end 511 closer to the central axis of the second fixing part 523, at least a partial auxiliary normally closed stationary contact lead-out end 510 can be obtained; by moving the first fixing part 5111 of the auxiliary normally closed stationary contact lead-out end 510 further away from the central axis of the second fixing part 523, at least a partial auxiliary normally open stationary contact lead-out end 511 can be obtained.

[0126] In one embodiment, such as Figures 1-7 As shown, the distance between the central axes of the first fixed part 5111 and the second fixed part 523 of the auxiliary normally open stationary contact lead-out terminal 511 is greater than the distance between the edge of the auxiliary moving spring 52 along the length direction of the auxiliary moving spring 52 and the central axis of the second fixed part 523.

[0127] In other words, the first fixing part 5111 of the auxiliary normally open stationary contact lead-out end 511 is disposed on the outer side of the auxiliary moving spring 52 along the second direction. There is a certain distance between the first fixing part 5111 of the auxiliary normally open stationary contact lead-out end 511 and the edge of the auxiliary moving spring 52 along the second direction. The first fixing part 5111 plays a role in avoiding collision. The bottom of the bent part 5112 of the auxiliary normally open stationary contact lead-out end 511 can reliably contact the auxiliary moving spring 52.

[0128] like Figures 8-11 As shown, the distance between the central axes of the first fixed part 5111 and the second fixed part 523 of the auxiliary normally closed stationary contact lead-out terminal 510 is less than the distance between the edge of the auxiliary moving spring 52 along the length direction of the auxiliary moving spring 52 and the central axis of the second fixed part 523.

[0129] In other words, the first fixing part 5111 of the auxiliary normally closed stationary contact lead-out end 510 is disposed between the two outer edges of the auxiliary moving spring 52 along the second direction, and there is a certain distance between the first fixing part 5111 of the auxiliary normally open stationary contact lead-out end 511 and the edge of the auxiliary moving spring 52 along the second direction, and the top of the bent part 5112 of the auxiliary normally open stationary contact lead-out end 511 can reliably contact the auxiliary moving spring 52.

[0130] This embodiment also provides a relay, including the auxiliary contact assembly 5 described above.

[0131] like Figure 2 , Figures 12-15 As shown, the relay also includes a yoke plate 6 and a push assembly 4. The push assembly 4 passes through the yoke plate 6 and can move relative to the yoke plate 6. The auxiliary stationary contact lead-out end 51 of the auxiliary contact assembly 5 is disposed on the yoke plate 6, and the auxiliary moving spring 52 of the auxiliary contact assembly 5 is disposed on the push assembly 4.

[0132] In this embodiment, the relay has a fixed position because the yoke plate 6 is the fixed part of the relay. The auxiliary stationary contact lead-out end 51 is mounted on the yoke plate 6. The push assembly 4 is the moving part of the relay. The auxiliary moving spring 52 is mounted on the push assembly 4. Under the drive of the push assembly 4, the auxiliary moving spring 52 moves and can move relative to the auxiliary stationary contact lead-out end 51.

[0133] In one embodiment, such as Figure 7 As shown, the auxiliary moving spring 52 has a through hole 521 in the middle. The pushing component 4 passes through the through hole 521 and can move relative to the through hole 521 in the first direction. The through hole 521 avoids the pushing component 4.

[0134] In one embodiment, the auxiliary moving spring 52 and the pushing component 4 are integrally formed.

[0135] Specifically, the auxiliary moving spring 52 is provided with multiple process holes 522, which are located on both sides of the through hole 521 along the second direction. The auxiliary moving spring 52 and the pushing assembly 4 are integrally injection molded, and the process holes 522 are used to improve the stability of the connection between the auxiliary moving spring 52 and the pushing assembly 4.

[0136] In one embodiment, such as Figure 2 , Figure 5 and Figure 9 As shown, the auxiliary contact assembly 5 also includes an insulating member 512 and a connecting member 513. The insulating member 512 is disposed inside the yoke plate 6, the first fixing part 5111 passes through the insulating member 512, and the connecting member 513 is disposed inside the yoke plate 6 and between the insulating member 512 and the yoke plate 6.

[0137] Specifically, the insulating component 512 is made of glass. It isolates the yoke plate 6 from the auxiliary stationary contact lead-out terminal 51, preventing electrical conductivity between the metal yoke plate 6 and the auxiliary stationary contact lead-out terminal 51, thus ensuring effective insulation. The connecting component 513 is a transition copper sheet, positioned between the insulating component 512 and the yoke plate 6, serving as a connection between them.

[0138] This structure offers advantages such as simplified structural parts, easy molding, and low part cost. It also effectively utilizes the 6mm thick space of the yoke plate, minimizing height occupation and facilitating relay miniaturization.

[0139] In one embodiment, such as Figure 2 , Figures 12-15 As shown, the relay also includes a contact assembly 2, which includes an active spring 22 and a main stationary contact lead-out terminal 21. The pushing assembly 4 drives the active spring 22 to move, so that the active spring 22 and the main stationary contact lead-out terminal 21 make contact or separate. The auxiliary contact assembly 5 is used to monitor the contact or separation between the active spring 22 and the main stationary contact lead-out terminal 21.

[0140] When the active reed 22 comes into contact with a pair of main stationary contact leads 21, current flows in from one main stationary contact lead 21, passes through the active reed 22, and flows out from the other main stationary contact lead 21, thus connecting the load. Since the driving component 4 can simultaneously drive the active reed 22 and the auxiliary moving reed 52, the auxiliary contact component 5 can realize the main contact monitoring function.

[0141] It should be noted that, in this embodiment, the movement direction of the active spring 22 relative to the main stationary contact lead-out end 21 is the same as the movement direction of the auxiliary moving spring 52 relative to the auxiliary stationary contact lead-out end 51. Of course, in other embodiments, the movement direction of the active spring 22 relative to the main stationary contact lead-out end 21 and the movement direction of the auxiliary moving spring 52 relative to the auxiliary stationary contact lead-out end 51 may not be in the same direction.

[0142] The active reed 22 and the main stationary contact lead-out end 21 can be in direct contact or separated. An active contact can also be provided on the side of the active reed 22 facing the main stationary contact lead-out end 21, and a main stationary contact can be provided on the side of the main stationary contact lead-out end 21 facing the active reed 22. The active contact and the main stationary contact can be in contact or separated from each other, and the active contact and the main stationary contact form a main contact group.

[0143] Of course, the active reed 22 and the active contact can be separately configured or integrally formed, and the main stationary contact lead-out end 21 and the main stationary contact can be separately configured or integrally formed. Furthermore, this embodiment does not limit the specific contact form between the active reed 22 and the main stationary contact lead-out end 21; as long as contact or separation between the active reed 22 and the main stationary contact lead-out end 21 can be achieved, it is within the protection scope of this embodiment.

[0144] The state of the auxiliary contact assembly 5 may be the same as or different from that of the contact assembly 2. For example, if the active contact and the main stationary contact are open and in the main contact separation state, then the auxiliary moving contact and the auxiliary normally open stationary contact are open and in the auxiliary normally open contact separation state, and the auxiliary moving contact and the auxiliary normally closed stationary contact are in contact state. If the active contact and the main stationary contact are closed and in the main contact contact state, then the auxiliary moving contact and the auxiliary normally open stationary contact are closed and in the auxiliary contact contact state, and the auxiliary moving contact and the auxiliary normally closed stationary contact are separated and in the auxiliary normally closed contact separation state.

[0145] In one embodiment, such as Figure 2 , Figures 12-15 As shown, the relay also includes a contact container 1, which includes an insulating cover 11 and a frame plate 12. The main stationary contact lead-out end 21 extends at least partially into the insulating cover 11. The insulating cover 11 is connected to the yoke plate 6 through the frame plate 12. The insulating cover 11 and the yoke plate 6 form a contact chamber, which provides an insulating environment for the contact between the active spring 22 and the main stationary contact lead-out end 21.

[0146] In some other embodiments, the auxiliary stationary contact lead-out end 51 of the auxiliary contact assembly 5 may also be disposed on the inner wall of the insulating cover 11. The first contact portion 5115 of the auxiliary normally open stationary contact lead-out end 511 is disposed on the side of the auxiliary moving spring 52 along the first direction and away from the yoke plate 6, and / or, the bent portion 5112 of the auxiliary normally open stationary contact lead-out end 511 is disposed away from the second fixing portion 523 of the auxiliary moving spring 52; the first contact portion 5115 of the auxiliary normally closed stationary contact lead-out end 510 is disposed on the side of the auxiliary moving spring 52 along the first direction and toward the yoke plate 6, and / or, the bent portion 5112 of the auxiliary normally closed stationary contact lead-out end 510 is disposed toward the second fixing portion 523 of the auxiliary moving spring 52.

[0147] In one embodiment, such as Figure 2 , Figures 12-15 As shown, the relay also includes a short-circuit protection component 3, which is disposed at least on the upper side of the active reed 22 along the axial direction of the main stationary contact lead-out terminal 21, and generates a suction force when the active reed 22 experiences a fault large current. The short-circuit protection component 3 is used to resist the electric repulsion force between the active reed 22 and the main stationary contact lead-out terminal 21.

[0148] The anti-short-circuit component 3 is essentially disposed on both sides of the active spring 22 along the first direction, clamping the active spring 22 inside the anti-short-circuit component 3. This is equivalent to adding a short-circuit ring structure at the active spring 22, which can magnetically shield part of the magnetic field generated by the active spring 22 to a certain extent. When a fault current occurs in the active spring 22, the anti-short-circuit component 3 can form a magnetic circuit and generate an attractive force. This attractive force can also resist the electrodynamic repulsive force generated between the active spring 22 and the main stationary contact lead-out terminal 21 due to the fault current, preventing the active spring 22 and the main stationary contact lead-out terminal 21 from detaching from each other and causing an arcing explosion, thus ensuring the reliability and safety of the contact between the active spring 22 and the main stationary contact lead-out terminal 21.

[0149] Specifically, such as Figure 2 , Figures 12-15 As shown, the short-circuit protection component 3 includes an upper magnetic conductor 31 and a lower magnetic conductor 32. The upper magnetic conductor 31 is disposed on the side of the active reed 22 near the main stationary contact lead-out end 21, and the lower magnetic conductor 32 is disposed on the side of the active reed 22 away from the main stationary contact lead-out end 21. A magnetic circuit is formed between the upper magnetic conductor 31 and the lower magnetic conductor 32 to generate an attractive force when a fault current occurs in the active reed 22, which is used to resist the electrodynamic repulsive force between the active reed 22 and the main stationary contact lead-out end 21. The upper magnetic conductor 31 and the lower magnetic conductor 32 can be made of materials such as iron, cobalt, nickel, and their alloys.

[0150] The lower magnetic conductor 32 is fixed below the active spring 22. The lower magnetic conductor 32 can move together with the active spring 22 toward the main stationary contact lead-out end 21, so that a magnetic circuit can be formed between the upper magnetic conductor 31 and the lower magnetic conductor 32. When the active spring 22 experiences a fault current, since the upper magnetic conductor 31 is located above the active spring 22 and the lower magnetic conductor 32 is located below the active spring 22, it is equivalent to the active spring 22 being sandwiched between the two magnets, the upper magnetic conductor 31 and the lower magnetic conductor 32. When the upper magnetic conductor 31 generates an attractive force on the lower magnetic conductor 32, this attractive force is used to resist the electrodynamic repulsive force generated between the active spring 22 and the main stationary contact lead-out end 21 due to the fault current, thus preventing the active spring 22 and the main stationary contact lead-out end 21 from detaching from each other and causing an arcing explosion, ensuring the reliability and safety of the contact between the active spring 22 and the main stationary contact lead-out end 21.

[0151] In some other embodiments, the upper magnetic conductor 31 may be a straight-line structure, positioned between the two moving contacts of the active spring 22. The upper magnetic conductor 31 may extend along the width of the active spring 22 for matching and corresponding with the lower magnetic conductor 32. The lower magnetic conductor 32 has a U-shaped structure, with its opening facing the active spring 22, allowing its two side arms to extend towards the upper magnetic conductor 31. This allows the two side arms of the lower magnetic conductor 32 to approach or contact the two ends of the upper magnetic conductor 31, forming a surrounding magnetic ring along the width of the active spring 22. Since the two ends of the active reed 22 along its length are moving contacts, the surrounding magnetic ring formed along the width of the active reed 22 will not interfere. When the active reed 22 experiences a fault current, an electromagnetic attraction force is generated in the direction of the moving contact pressure to resist the electric repulsion force generated by the fault current between the active reed 22 and the main stationary contact lead-out terminal 21.

[0152] In one embodiment, such as Figure 2 , Figures 12-15 As shown, the actuating assembly 4 includes a push rod 411, a base 412, an elastic element 43, and a U-shaped bracket 42. The upper part of the base 412 and the push rod 411 can be integrally injection molded to form a push rod unit 41. The bottom of the U-shaped bracket 42 is fixedly connected to the base 412, and the U-shaped bracket 42 and the base 412 form a frame structure. The active spring 22 and the elastic element 43 are installed in the frame structure formed by the U-shaped bracket 42 and the base 412. One end of the elastic element 43 abuts against the base 412, and the other end abuts against the active spring 22. The elastic element 43 can provide elastic force, so that the active spring 22 tends to move away from the base 412 and closer to the main stationary contact lead-out end 21.

[0153] In one embodiment, the relay further includes an electromagnet unit 44, which is disposed on the side of the yoke plate 6 opposite to the insulating cover 11. A push rod unit 41 is drivenly connected to the electromagnet unit 44. The push rod unit 41 is movably disposed within the electromagnet unit 44 and passes through a through hole in the yoke plate 6 to connect with the active spring 22. When the electromagnet unit 44 is energized, it can drive the push rod unit 41 to move, thereby causing the active spring 22 to move, so as to contact or separate from the main stationary contact lead-out terminal 21.

[0154] The electromagnet unit 44 includes a coil frame (not shown), a coil (not shown), a stationary iron core 444, and a moving iron core 443. The coil frame is a hollow cylindrical shape and is made of insulating material. A metal cover 45 is installed inside the coil frame, and the coil surrounds the coil frame. The stationary iron core 444 is fixedly installed inside the metal cover 45, and a portion of the stationary iron core 444 extends into a through hole. The stationary iron core 444 has a first through hole, which is positioned corresponding to the through hole, for the push rod unit 41 to pass through. The moving iron core 443 is movably installed inside the metal cover 45 and is positioned opposite to the stationary iron core 444. The moving iron core 443 is connected to the push rod unit 41 and is attracted by the stationary iron core 444 when the coil is energized. The moving iron core 443 and the push rod unit 41 can be connected by screwing, riveting, welding, or other methods.

[0155] The relay operation process provided in this embodiment is as follows:

[0156] When the coil is energized, the moving iron core 443 moves upward, and the moving iron core 443 drives the push rod unit 41 to move upward. Under the pushing action of the push rod unit 41, the active contact of the active spring 22 contacts the main stationary contact of the main stationary contact lead-out terminal 21, the auxiliary moving contact of the auxiliary moving spring 52 contacts the auxiliary normally open stationary contact of the auxiliary normally open stationary contact lead-out terminal 511, and the auxiliary moving contact of the auxiliary moving spring 52 separates from the auxiliary normally closed stationary contact of the auxiliary normally closed stationary contact lead-out terminal 510.

[0157] When the coil disconnects the current, the moving iron core 443 drives the push rod unit 41 to move downward, causing the moving contact of the active spring 22 to separate from the main stationary contact lead-out end 21, the auxiliary moving contact of the auxiliary moving spring 52 to separate from the auxiliary normally open stationary contact lead-out end 511, and the auxiliary moving contact of the auxiliary moving spring 52 to contact the auxiliary normally closed stationary contact lead-out end 510.

[0158] This embodiment also provides an installation method for an auxiliary contact assembly, used to install the aforementioned auxiliary contact assembly 5. The installation method for the auxiliary contact assembly includes the following steps: fabricating an auxiliary stationary contact lead-out end 51 with a bent portion 5112; and adjusting the position of the bent portion 5112 relative to the auxiliary moving spring 52 to achieve the conversion between a normally open structure and a normally closed structure for the auxiliary contact assembly 5.

[0159] The installation method of the auxiliary contact assembly 5 provided in this embodiment does not require any modification to the structure of the auxiliary moving spring 52. It only requires adjusting the position of the bent part 5112 relative to the auxiliary moving spring 52 to realize the conversion between the normally open and normally closed structures of the auxiliary contact assembly 5. The installation process is simple and reduces the cost of original materials and installation.

[0160] In one embodiment, adjusting the position of the bent portion 5112 relative to the auxiliary movable spring 52 includes the following steps:

[0161] Adjust at least one of the following: the height of the bent portion 5112 relative to the auxiliary moving spring 52 in the first direction, the distance of the bent portion 5112 relative to the auxiliary moving spring 52 in the length direction of the auxiliary moving spring 52, and the bending direction of the bent portion 5112 relative to the auxiliary moving spring 52.

[0162] Specifically, by adjusting the height of the bent portion 5112 along the first direction and adjusting the position of the bent portion 5112 relative to the auxiliary moving spring 52 along the second direction, the position adjustment of the bent portion 5112 in the two linear degrees of freedom in the first and second directions is achieved; by adjusting the rotation angle of the first fixed portion 5111 relative to the yoke plate 6, the bending direction of the bent portion 5112 relative to the auxiliary moving spring 52 is adjusted, thereby achieving the position adjustment of the bent portion 5112 in the rotational degree of freedom.

[0163] Example 2

[0164] This embodiment is similar to Embodiment 1, except that the angle between the bent portion 5112 and the first fixing portion 5111 is different.

[0165] like Figures 16-17 As shown, the included angle between the bent portion 5112 and the first fixing portion 5111 provided in this embodiment is a right angle or an obtuse angle.

[0166] like Figure 16 As shown, when the angle between the bent portion 5112 and the first fixed portion 5111 is a right angle, the bent portion 5112 is arranged parallel to the auxiliary moving spring 52, and the entire bent portion 5112 can contact the auxiliary moving spring 52. The contact area between the auxiliary stationary contact lead-out end 51 and the auxiliary moving spring 52 is relatively large, and the pressure on the auxiliary moving spring 52 can be effectively reduced. Figure 17 As shown, when the included angle between the bent portion 5112 and the first fixed portion 5111 is an obtuse angle, the bent portion 5112 is arranged facing upward relative to the auxiliary moving spring 52, which can effectively reduce the pressure on the auxiliary spring and improve the service life of the auxiliary moving spring 52.

[0167] It should be noted that if the force on the auxiliary spring is reduced, it will affect the reliability of the contact between the auxiliary stationary contact lead-out end 51 and the auxiliary spring. Therefore, the included angle between the bent part 5112 and the first fixed part 5111 can be adjusted according to the actual situation to achieve the purpose of adjusting the relative angle between the bent part 5112 and the auxiliary moving spring 52.

[0168] Example 3

[0169] This embodiment is similar to Embodiment 1, except that the number and layout of the auxiliary stationary contact lead-out terminals 51 are different.

[0170] In this embodiment, there are multiple auxiliary stationary contact leads 51, which are disposed around the auxiliary moving spring 52, and are respectively disposed on both sides of the auxiliary moving spring 52 along the width direction of the moving spring; and / or, there are multiple auxiliary stationary contact leads 51, which are disposed around the auxiliary moving spring 52, and are disposed on both sides of the auxiliary moving spring 52 along the length direction of the moving spring.

[0171] For example: there are two auxiliary stationary contact leads 51, and the two auxiliary stationary contact leads 51 are arranged on both sides of the auxiliary moving spring 52 along the second direction; there are two auxiliary stationary contact leads 51, and the two auxiliary stationary contact leads 51 are arranged on both sides of the auxiliary moving spring 52 along the third direction; for example Figure 18 As shown, there are four auxiliary stationary contact leads 51. Two auxiliary stationary contact leads 51 are provided on each side of the auxiliary moving spring 52 along the second direction, and two auxiliary stationary contact leads 51 are provided on each side of the auxiliary moving spring 52 along the third direction. The four auxiliary stationary contact leads 51 are arranged around the auxiliary moving spring 52, and the four auxiliary stationary contact leads 51 can be respectively set at the four corners of the auxiliary moving spring 52.

[0172] The number of auxiliary stationary contact leads 51 is set to multiple, that is, the single auxiliary contact contact is increased to two or more auxiliary contact contacts. This prevents the auxiliary moving spring 52 from moving and causing the auxiliary moving spring 52 and the auxiliary stationary contact lead 51 to not be able to contact each other, which would lead to the failure of the auxiliary contact assembly 5 and further improve the reliability of the contact of the auxiliary contact assembly 5.

[0173] In one embodiment, such as Figure 19 As shown, multiple auxiliary stationary contact leads 51 can also be arranged diagonally around the auxiliary moving spring 52.

[0174] According to structural requirements, multiple auxiliary stationary contact leads 51 are adjusted to be placed diagonally opposite the auxiliary moving spring 52. Even if the auxiliary contact assembly 5 has a single-sided inclined structure, the contact reliability between the auxiliary stationary contact leads 51 and the auxiliary moving spring 52 can be guaranteed.

[0175] Example 4

[0176] This embodiment is similar to Embodiment 1, except that the specific structure of the auxiliary stationary contact lead-out end 51 is different.

[0177] like Figures 20-25As shown, the first fixing part 5111 of the auxiliary stationary contact lead-out end 51 provided in this embodiment is a lead-out pin 5113, and the bending part 5112 is a sheet structure.

[0178] The lead-out pin 5113 is disposed on the yoke plate 6, and the bent portion 5112 of the plate structure is specifically an auxiliary stationary spring 5114. The auxiliary stationary spring 5114 is connected to the lead-out pin 5113, and the auxiliary stationary spring 5114 is in contact with or separate from the auxiliary moving spring 52. The combination structure of the lead-out pin 5113 and the auxiliary stationary spring 5114 improves the ease of assembly of the auxiliary stationary contact lead-out end 51.

[0179] In one embodiment, the first fixing part 5111 and the bending part 5112 are separate structures.

[0180] Since the lead-out pin 5113 and the auxiliary stationary spring 5114 have different functions, they are designed as separate structures. The lead-out pin 5113 can be made of a material with good structural strength, while the auxiliary stationary spring 5114 can be made of a wear-resistant material that is more suitable for the contact. The lead-out pin 5113 and the auxiliary stationary spring 5114 can each be made of the materials they need, thereby improving the overall reliability of the stationary contact lead-out end.

[0181] In one embodiment, such as Figures 20-22 As shown, the bent portion 5112 of the auxiliary normally open stationary contact lead-out terminal 511 is a U-shaped structure, with the open end of the U-shaped structure facing the auxiliary moving spring 52, and the auxiliary moving spring 52 is at least partially disposed within the U-shaped structure; and / or, as Figures 23-25 As shown, the auxiliary stationary spring 5114 of the auxiliary normally closed stationary contact lead-out terminal 510 has a U-shaped structure. The open end of the U-shaped structure is set away from the auxiliary moving spring 52, and the auxiliary moving spring 52 is set outside the U-shaped structure.

[0182] Therefore, the switching between the auxiliary normally open stationary contact lead-out end 511 and the auxiliary normally closed stationary contact lead-out end 510 can be achieved by adjusting the opening direction of the auxiliary stationary reed 5114. For example, by changing the opening end of the auxiliary stationary reed 5114 in the auxiliary normally open stationary contact lead-out end 511 from the direction toward the central axis of the second fixing part 523 to the direction away from the central axis of the second fixing part 523, at least a partial auxiliary normally closed stationary contact lead-out end 510 can be obtained; by changing the opening end of the auxiliary stationary reed 5114 in the auxiliary normally closed stationary contact lead-out end 510 from the direction away from the central axis of the second fixing part 523 to the direction toward the central axis of the second fixing part 523, at least a partial auxiliary normally open stationary contact lead-out end 511 can be obtained.

[0183] In one embodiment, such as Figures 20-22As shown, the contact portion between the auxiliary stationary spring 5114 and the auxiliary moving spring 52 of the auxiliary normally open stationary contact lead-out terminal 511 is disposed on the inner wall of the auxiliary stationary spring 5114.

[0184] Since the open end of the auxiliary stationary spring 5114 in the auxiliary normally open stationary contact lead-out terminal 511 faces the central axis of the push assembly 4, the auxiliary moving spring 52 can extend into the interior of the auxiliary stationary spring 5114. At this time, the contact portion between the auxiliary stationary spring 5114 and the auxiliary moving spring 52 is set on the inner wall of the auxiliary stationary spring 5114, which increases the contact reliability between the auxiliary moving spring 52 and the auxiliary stationary spring 5114.

[0185] In one embodiment, such as Figures 23-25 As shown, the contact portion between the auxiliary stationary spring 5114 and the auxiliary moving spring 52 of the auxiliary normally open stationary contact lead-out terminal 511 is located on the inner outer wall of the auxiliary stationary spring 5114.

[0186] Since the auxiliary stationary spring 5114 of the auxiliary normally closed stationary contact lead-out terminal 510 is located outside the auxiliary moving spring 52, the contact portion between the auxiliary stationary spring 5114 and the auxiliary moving spring 52 is located on the outer wall of the auxiliary stationary spring 5114, thereby increasing the contact reliability between the auxiliary moving spring 52 and the auxiliary stationary spring 5114.

[0187] In one embodiment, such as Figures 20-25 As shown, the auxiliary contact assembly 5 also includes a mounting base 514. The yoke plate 6 is provided with a mounting groove on the side facing the auxiliary moving spring 52. The mounting base 514 is disposed in the mounting groove, and the lead-out needle 5113 passes through the mounting base 514.

[0188] The mounting groove of the yoke plate 6 provides a location for the mounting base 514 to accommodate and install. The lead-out pin 5113 passes through the mounting base 514, and the mounting base 514 fixes the lead-out pin 5113, thereby ensuring the fixing effect of the static contact lead-out end.

[0189] Understandably, the mounting base 514 is made of insulating materials such as ceramics to isolate the lead-out pin 5113 from the yoke plate 6, thus preventing electrical conduction between the metal yoke plate 6 and the lead-out pin 5113.

[0190] It should be noted that the auxiliary contact assembly shown in the accompanying drawings and described in this specification is merely one example of the application of the principles of the invention. Those skilled in the art will clearly understand that the principles of the invention are not limited to any details or components of the apparatus shown in the drawings or described in the specification.

[0191] It should be understood that the application of this invention is not limited to the detailed structure and arrangement of the components presented in this specification. The invention can have other embodiments and can be implemented and performed in various ways. The foregoing variations and modifications fall within the scope of this invention. It should be understood that the invention disclosed and defined in this specification extends to all alternative combinations of two or more individual features mentioned or apparent in the text and / or drawings. All these different combinations constitute multiple alternative aspects of the invention. The embodiments described in this specification illustrate the best known mode for carrying out the invention and will enable those skilled in the art to utilize the invention.

[0192] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and exemplary embodiments are to be considered as exemplary only, and the true scope and spirit of the invention are indicated by the appended claims.

[0193] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of protection of the present invention is limited only by the appended claims.

Claims

1. An auxiliary contact assembly, characterized in that, include: An auxiliary stationary contact lead-out end includes a first fixing part, a first contact part, and a bending part, wherein the bending part is connected between the first fixing part and the first contact part; An auxiliary moving spring is used to contact or separate from the auxiliary stationary contact lead-out end; Specifically, by adjusting at least two of the following: the height of the bent portion relative to the auxiliary moving spring in the first direction, the distance of the bent portion relative to the auxiliary moving spring along the length direction of the auxiliary moving spring, and the bending direction of the bent portion relative to the auxiliary moving spring, the auxiliary stationary contact lead-out end and the auxiliary moving spring are configured to be able to switch between a normally open structure and a normally closed structure. Wherein, the first direction is the direction in which the auxiliary moving spring moves relative to the auxiliary stationary contact lead-out end.

2. The auxiliary contact assembly according to claim 1, characterized in that, The auxiliary moving spring includes a second fixing part and a second contact part. The second contact part is used to contact or separate from the first contact part. The first fixing part and the second contact part are arranged along the first direction.

3. The auxiliary contact assembly according to claim 2, characterized in that, The first contact portion and the second contact portion have a contact force when they come into contact, and the direction of the contact force intersects with the first direction.

4. The auxiliary contact assembly according to claim 2, characterized in that, The first fixing part extends along the first direction.

5. The auxiliary contact assembly according to claim 2, characterized in that, The first contact portion is inclined relative to the first direction; and / or, The second contact portion is inclined relative to the second direction, wherein the second direction is the length direction of the auxiliary moving spring, and the first direction and the second direction are perpendicular to each other.

6. The auxiliary contact assembly according to claim 2, characterized in that, The first contact portion and the second contact portion are in point contact.

7. The auxiliary contact assembly according to claim 2, characterized in that, The first contact portion has a contact arc surface on the side facing the auxiliary moving spring, and the contact arc surface can contact the auxiliary moving spring and slide relative to the auxiliary moving spring.

8. The auxiliary contact assembly according to claim 1, characterized in that, The bent portion and the first fixing portion are arranged at an angle.

9. The auxiliary contact assembly according to claim 8, characterized in that, The included angle between the bent portion and the first fixed portion is an acute angle, a right angle, or an obtuse angle.

10. The auxiliary contact assembly according to claim 8, characterized in that, The first fixing part, the bending part, and the first contact part are integrally formed.

11. The auxiliary contact assembly according to claim 8, characterized in that, The auxiliary stationary contact lead-out terminal includes an auxiliary normally open stationary contact lead-out terminal, the auxiliary moving spring is provided with an auxiliary moving contact, and the auxiliary normally open stationary contact lead-out terminal is provided with an auxiliary normally open stationary contact corresponding to the auxiliary moving contact. And / or, The auxiliary stationary contact lead-out terminal includes an auxiliary normally closed stationary contact lead-out terminal, the auxiliary moving spring is provided with an auxiliary moving contact, and the auxiliary normally closed stationary contact lead-out terminal is provided with an auxiliary normally closed stationary contact corresponding to the auxiliary moving contact. The auxiliary normally open stationary contact lead-out terminal and the auxiliary normally closed stationary contact lead-out terminal are configured to be switchable.

12. The auxiliary contact assembly according to claim 11, characterized in that, The bent portion of the auxiliary stationary contact lead-out end is disposed on the side of the auxiliary moving spring along the first direction and away from the first fixed portion, forming the auxiliary normally open stationary contact lead-out end; And / or, The bent portion of the auxiliary stationary contact lead-out end is disposed on one side of the auxiliary moving spring along the first direction and toward the first fixing portion, forming the auxiliary normally closed stationary contact lead-out end.

13. The auxiliary contact assembly according to claim 11, characterized in that, The bent portion of the auxiliary stationary contact lead-out end is bent along the second direction and toward the second fixing portion of the auxiliary moving spring to form the auxiliary normally open stationary contact lead-out end; and / or, the bent portion of the auxiliary stationary contact lead-out end is bent along the second direction and away from the auxiliary moving spring to form the auxiliary normally closed stationary contact lead-out end. Wherein, the second direction is the length direction of the auxiliary moving spring, and the first direction and the second direction are perpendicular to each other.

14. The auxiliary contact assembly according to claim 12, characterized in that, The distance between the central axes of the first fixing part of the auxiliary normally open stationary contact lead-out terminal and the second fixing part of the auxiliary moving spring is greater than the distance between the central axes of the first fixing part and the second fixing part of the auxiliary normally closed stationary contact lead-out terminal.

15. The auxiliary contact assembly according to claim 14, characterized in that, The distance between the central axes of the first and second fixed portions of the auxiliary normally open stationary contact lead-out terminal is greater than the distance between the edge of the auxiliary moving spring along the length direction of the auxiliary moving spring and the central axis of the second fixed portion; and / or The distance between the central axes of the first and second fixed portions of the auxiliary normally closed stationary contact lead-out terminal is less than the distance between the edge of the auxiliary moving spring along the length direction of the auxiliary moving spring and the central axis of the second fixed portion.

16. The auxiliary contact assembly according to claim 8, characterized in that, The first fixing part and the bending part are separate structures.

17. The auxiliary contact assembly according to claim 16, characterized in that, The first fixing part is an lead-out pin, and the bending part is a sheet structure.

18. The auxiliary contact assembly according to claim 17, characterized in that, The bent portion of the auxiliary normally open stationary contact lead-out terminal is a U-shaped structure, with the open end of the U-shaped structure facing the auxiliary moving spring, and the auxiliary moving spring is at least partially disposed within the U-shaped structure; And / or, The bent portion of the auxiliary normally closed stationary contact lead-out terminal is a U-shaped structure, with the open end of the U-shaped structure facing away from the auxiliary moving spring, and the auxiliary moving spring being located outside the U-shaped structure.

19. The auxiliary contact assembly according to any one of claims 1-18, characterized in that, The number of auxiliary stationary contact leads is multiple, and these multiple auxiliary stationary contact leads are disposed around the auxiliary moving spring, and are respectively disposed on both sides of the auxiliary moving spring along its width direction; and / or, The number of auxiliary stationary contact leads is multiple, and the multiple auxiliary stationary contact leads are arranged around the auxiliary moving spring, and the multiple auxiliary stationary contact leads are arranged on both sides of the auxiliary moving spring along the length direction of the auxiliary moving spring.

20. The auxiliary contact assembly according to any one of claims 1-18, characterized in that, The number of auxiliary stationary contact leads is multiple, and the multiple auxiliary stationary contact leads are arranged diagonally around the auxiliary moving spring.

21. A relay, characterized in that, Includes the auxiliary contact assembly as described in any one of claims 1 to 20.

22. The relay according to claim 21, characterized in that, It also includes a yoke plate and a pushing assembly. The auxiliary stationary contact lead-out end of the auxiliary contact assembly is disposed on the yoke plate, and the auxiliary moving spring of the auxiliary contact assembly is disposed on the pushing assembly. The pushing assembly passes through the yoke plate and is able to move relative to the yoke plate.

23. The relay according to claim 22, characterized in that, The auxiliary moving spring and the pushing assembly are integrally formed.

24. A method for installing an auxiliary contact assembly, characterized in that, A method for installing an auxiliary contact assembly according to any one of claims 1 to 20, the method comprising the following steps: Fabricate an auxiliary stationary contact lead-out end with a bent section; By adjusting the position of the bent portion relative to the auxiliary moving spring, the auxiliary contact assembly can be switched between a normally open structure and a normally closed structure.

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