Contact assembly and relay

Abstract

The present application relates to the technical field of electronic control devices, in particular to a contact assembly and a relay. The contact assembly comprises: a stationary contact set and a moving spring, wherein the stationary contact set comprises two stationary contacts; two ends of the moving spring can make contact with or disengage from the corresponding stationary contacts to form two contact areas; and at least one of the stationary contact in each of the contact areas and the moving spring is provided with contact portions, and there are at least two contact portions in each of the contact areas, the contact portions being configured to realize contact and disengagement between the moving spring and the stationary contacts. In the contact assembly, the number of contact positions between the moving spring and the stationary contact set can be increased, so that the contact stability between the stationary contacts and the moving spring is ensured, and the possibility of vibration and noise between the stationary contacts and the moving spring is reduced.

Description

Contact assembly and relay

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on January 18, 2024, with application number 202420130195.0 and application name “Contact Assembly and Relay,” the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present application relates to the technical field of electronic control devices, and in particular to a contact assembly and a relay. Background Art

[0003] A relay is an electronic control device with a control system (also known as an input circuit) and a controlled system (also known as an output circuit). It is commonly used in automatic control circuits. It is essentially an "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays a role in automatic regulation, safety protection, and circuit conversion.

[0004] With the widespread adoption and development of new energy electric vehicles, noise is a growing concern for customers. The contact point between the stationary contact and the moving spring in a relay carries the power. When current flows through this contact point, it generates an electrodynamic repulsion force; varying currents generate varying electrodynamic repulsion forces. If there are only two contact points between the moving spring and the stationary contact, the varying electrodynamic repulsion forces can lead to unstable contact between the moving spring and the stationary contact, causing contact vibration and generating noise, which can impact structural performance.

[0005] Application Contents

[0006] Embodiments of the present application provide a contact assembly and a relay, which can increase the number of contact positions between a movable spring and a stationary contact group to ensure contact stability between the stationary contact and the movable spring and reduce the possibility of vibration and noise between the two.

[0007] An embodiment of the present application provides a contact assembly, comprising: a static contact group and a dynamic spring, wherein the static contact group includes two static contacts; both ends of the dynamic spring can contact or disengage with the corresponding static contacts to form two contact areas; the static contact and at least one of the dynamic springs in each of the contact areas have a contact portion, and the number of the contact portions in each of the contact areas is at least two, and the contact portion is used to achieve contact and disengagement between the dynamic spring and the static contact.

[0008] According to some embodiments of the application, the movable spring is located on one side of the static contact group, at least two contact portions in one contact area form a first size in the width direction of the movable spring, and at least two contact portions in another contact area form a second size in the width direction of the movable spring, and the first size is smaller than the second size.

[0009] According to some embodiments of the application, the dynamic spring is provided with a first protrusion in one of the contact areas, and the contact portion in the one contact area is located at the first protrusion; the dynamic spring is provided with a second protrusion in another of the contact areas, and the contact portion in the another contact area is located at the second protrusion.

[0010] According to some embodiments of the application, the first protrusion is a strip-shaped structure, and the length direction of the first protrusion is parallel to the width direction of the dynamic spring; each of the contact portions in the one contact area is located on the first protrusion;

[0011] The second convex portion is a strip-shaped structure, and the length direction of the second convex portion is parallel to the length direction of the dynamic spring; each of the contact portions in the other contact area is located on the second convex portion.

[0012] According to some embodiments of the application, the static contact is provided with a groove on the side facing the movable spring, and the groove passes through the static contact in a plane perpendicular to the arrangement direction of the static contact and the movable spring; the static contact includes two sub-parts separated by the groove, and each sub-part is used to contact or disengage with the contact part.

[0013] According to some embodiments of the application, in the static contact corresponding to the first protrusion, the arrangement direction of the two sub-parts in the static contact is parallel to the extension direction of the first protrusion;

[0014] And / or, in the static contact corresponding to the second protrusion, an arrangement direction of the two sub-portions in the static contact is parallel to an extension direction of the second protrusion.

[0015] According to some embodiments of the application, the static contact is provided with a recess on a side facing the movable spring; along the circumference of the static contact, the portion of the static contact surrounding the recess is used to contact or disengage with the contact portion.

[0016] According to some embodiments of the application, the first protrusion is a columnar structure, and the dynamic spring is provided with at least two first protrusions in one contact area, and each first protrusion is provided with one contact portion; the second protrusion is a columnar structure, and the dynamic spring is provided with at least two second protrusions in another contact area, and each second protrusion is provided with one contact portion.

[0017] According to some embodiments of the application, the dynamic spring is provided with two first protrusions in one of the contact areas, and the two first protrusions are arranged at intervals along the length direction of the dynamic spring; the dynamic spring is provided with four second protrusions in another of the contact areas, two of the four second protrusions are arranged at intervals along the length direction of the dynamic spring to form a first protrusion group, and the remaining two of the four second protrusions are arranged at intervals along the length direction of the dynamic spring to form a second protrusion group, and the second protrusion group and the first protrusion group are arranged at intervals along the width direction of the dynamic spring.

[0018] According to some embodiments of the application, the dynamic spring has a center line, and the extension direction of the center line is parallel to the length direction of the dynamic spring; the axis of the first protrusion intersects with the center line, and the first protrusion group and the second protrusion group are symmetrically arranged relative to the center line.

[0019] According to some embodiments of the application, the static contact is provided with a protruding contact convex portion on a side facing the movable spring, and the contact convex portion is provided with the contact portion.

[0020] According to some embodiments of the application, two contact portions within one contact region form a first connecting line, and the first connecting line forms an angle greater than 0 degrees with the length direction of the dynamic spring; of the two dynamic spring contact regions forming the first connecting line, one contact portion and a dynamic spring contact region within the other contact region form a second connecting line, and the other contact portion and the same dynamic spring contact region within the other contact region form a third connecting line; the third connecting line, the second connecting line, and the first connecting line form a triangular region;

[0021] The contact assembly further includes a contact spring, which presses the movable spring to a side away from the static contact group so that the movable spring contacts the static contacts; and the force application point of the contact spring is located within the triangular area.

[0022] According to some embodiments of the application, the dynamic spring includes a main body portion, and the main body portion is a plate-shaped structure or a columnar structure.

[0023] The present application also provides a relay, comprising a contact assembly provided by any of the above technical solutions.

[0024] One embodiment of the above application has at least the following advantages or beneficial effects:

[0025] The contact assembly provided by the present application has two contact areas, and there are at least two contact parts in each contact area. When the static contact and the dynamic spring contact through the contact part, a contact position can be formed. Accordingly, at least four contact positions can be formed between the dynamic spring and the static contact group in the contact assembly to ensure the probability of forming multi-position contact between the dynamic spring and the static contact group, thereby improving the reliability of the product. At the same time, the contact assembly provided by the present application can reduce the contact resistance and reduce the electric repulsion by setting at least four contact positions between the two static contacts and the dynamic spring, so as to ensure the contact stability of the static contact and the dynamic spring, reduce the possibility of contact vibration, and thus protect the structural performance of the relay. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG1 is a half-section schematic diagram of a relay provided in an embodiment of the present application;

[0027] FIG2 is a schematic structural diagram of a contact assembly provided in an embodiment of the present application;

[0028] FIG3 shows a cross-sectional view of the section AA in FIG2 ;

[0029] FIG4 is a schematic diagram showing the three-dimensional structure of the push rod assembly in FIG2 ;

[0030] FIG5 is a schematic diagram showing the three-dimensional structure of the static contact group in FIG4 ;

[0031] FIG6 shows a schematic diagram of a second three-dimensional structure of a stationary contact group in a contact assembly provided in an embodiment of the present application;

[0032] FIG7 is a half-section schematic diagram showing a contact assembly using the stationary contact group in FIG6 ;

[0033] FIG8 shows a cross-sectional view at BB in FIG7 ;

[0034] FIG9 shows a third structural schematic diagram of a contact assembly provided in an embodiment of the present application;

[0035] FIG10 shows an exploded schematic diagram of the structure in FIG9 ;

[0036] FIG11 shows a schematic plan view of the movable spring in FIG10 ;

[0037] FIG12 is a schematic structural diagram showing the structure of FIG9 at another angle;

[0038] FIG13 is a schematic diagram showing the structure of FIG9 at another angle;

[0039] FIG14 shows a plan view of a stationary contact group in a contact assembly provided in an embodiment of the present application;

[0040] FIG15 shows a force analysis diagram of the structure in FIG11 when interacting with the contact spring.

[0041] The description of the accompanying drawings is as follows: 10, contact assembly; 100, static contact group; 110, static contact; 111, groove; 112, sub-part; 113, depression; 114, surrounding part; 115, contact protrusion; 200, movable spring; 210, main body; 220, first protrusion; 230, second protrusion; S, contact area; 20, insulating cover; 30, push rod assembly. Specific embodiments

[0042] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0043] As shown in FIG1 , an embodiment of the present application provides a relay, which includes a contact assembly 10 , an insulating cover 20 and a push rod assembly 30 .

[0044] It is understood that the terms "including" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to the process, method, product, or apparatus.

[0045] The contact assembly 10 is disposed within an insulating cover 20, which in this embodiment is a ceramic cover. The contact assembly 10 includes a stationary contact group 100 and a movable spring 200. The stationary contact group 100 includes two stationary contacts 110. The stationary contacts 110 are fixed relative to the insulating cover 20, with one end of the stationary contact 110 extending outside the insulating cover 20 to form an outlet. The other end of the stationary contact 110, located within the insulating cover 20, is used to contact the movable spring 200. The movable spring 200 is movably disposed within the insulating cover 20 and is used to contact or disengage with its corresponding stationary contact 110 to achieve closing or opening of the contact assembly 10.

[0046] The push rod assembly 30 is movable relative to the insulating cover 20. When the push rod assembly 30 moves back and forth, it can drive the dynamic spring 200 to move, thereby achieving the closing or opening of the contact assembly 10.

[0047] The contact assembly 10 in the relay provided in the embodiment of the present application can be the contact assembly 10 in any of the following technical solutions. Of course, the contact assembly 10 can also be configured in other ways according to needs, which will not be described in detail here.

[0048] In conjunction with the structures shown in Figures 2 to 5 , an embodiment of the present application provides a contact assembly 10. The contact assembly 10 includes a stationary contact assembly 100 and a movable spring 200. The stationary contact assembly 100 includes two stationary contacts 110. The movable spring 200 has two ends that can engage or disengage with corresponding stationary contacts 110, forming two contact regions S. Within each contact region S, at least one of the stationary contacts 110 and the movable spring 200 has a contact portion, and each contact region S has at least two contact portions. These contact portions are used to enable engagement and disengagement between the movable spring 200 and the stationary contact 110.

[0049] It is understandable that the number of contact portions formed in the two contact regions S may be the same or different. When specifically setting the number of contact portions in the two contact regions S, it is sufficient to ensure that the number of contact portions in each contact region S is at least two.

[0050] For example, the positions of the four contact portions on the dynamic spring 200 are marked with filled areas in FIG4 , and every two contact portions are located in a contact area S. It should be understood that the shape of each contact portion is not limited to that shown in FIG4 , and is only illustrated here. It is worth noting that each contact portion shown in FIG4 can form a contact position with its corresponding static contact 110. Accordingly, when the contact portion is provided on the dynamic spring 200, at least two contact portions in the contact area S can form a corresponding number of contact positions with the same static contact 110. It should be understood that more contact positions can better reduce the contact resistance and reduce the electric repulsion.

[0051] It should be noted that the contact assembly 10 provided in the embodiment of the present application has two contact regions S, each of which contains at least two contact portions. When the stationary contact 110 and the movable spring 200 come into contact through the contact portions, a single contact position is formed. Consequently, at least four contact positions can be formed between the movable spring 200 and the stationary contact assembly 100 in the contact assembly 10, ensuring the probability of multi-position contact between the movable spring 200 and the stationary contact assembly 100 and improving product reliability.

[0052] At the same time, the contact assembly 10 provided in the embodiment of the present application can reduce contact resistance and electric repulsion by setting at least four contact positions between the two static contacts 110 and the dynamic spring 200, so as to ensure the contact stability between the static contacts 110 and the dynamic spring 200, reduce the possibility of contact vibration, and thus ensure the structural performance of the relay.

[0053] In one embodiment, referring to the structures shown in Figures 2 to 13 , the movable spring 200 is located on one side of the static contact assembly 100 . At least two contact portions within one contact region S form a first dimension in the width direction of the movable spring 200 , while at least two contact portions within another contact region S form a second dimension in the width direction of the movable spring 200 , where the first dimension is smaller than the second dimension. It should be understood that in this embodiment, the arrangement of the at least two contact portions within one contact region S can be understood as a vertical arrangement, while the arrangement of the at least two contact portions within the other contact region S can be understood as a horizontal arrangement. In general, the arrangement of the contact portions within the two contact regions S can be understood as one horizontal and one vertical.

[0054] For example, as shown in FIG. 4 , two contact portions in one contact region S are spaced apart along the width direction of the dynamic spring 200 , and two contact portions in another contact region S are spaced apart along the length direction of the dynamic spring 200 .

[0055] It should be noted that in the contact assembly 10 provided in the embodiment of the present application, the multiple contact portions are arranged in a horizontal and vertical arrangement. This arrangement ensures effective multi-position contact between the stationary contact assembly 100 and the dynamic spring 200. It is also worth noting that the coverage area of ​​the multiple contact positions between the stationary contact assembly 100 and the dynamic spring 200 forms a triangular region, which ensures more stable contact between the two, better compatible contact stability, and prevents the dynamic spring 200 from deflecting.

[0056] It is worth noting that, under the same contact pressure, the resistance of the parallel contacts is smaller than that of a single contact. Therefore, multi-position contacts can reduce the total contact resistance within the relay. As a result, the relay generates less heat and has higher reliability.

[0057] Furthermore, the aforementioned horizontal and vertical design within the contact assembly 10 provided in the embodiments of the present application also enables current diversion. It is understood that electrodynamic repulsion is proportional to the square of the current flowing through it. Multiple points of electrodynamic repulsion reduce the total electrodynamic repulsion, which helps improve the product's short-circuit resistance and enhances the reliability of the relay.

[0058] When the contact assembly 10 is specifically provided, the contact portion may be provided on the movable spring 200 ; or, the contact portion may be provided on the stationary contact 110 .

[0059] As shown in Figures 4 and 10, the dynamic spring 200 is provided with a first protrusion 220 in one contact area S, and the contact portion in the contact area S is located at the first protrusion 220; the dynamic spring 200 is provided with a second protrusion 230 in another contact area S, and the contact portion in the contact area S is located at the second protrusion 230.

[0060] It should be noted that, in this embodiment, the contact portions are provided on the first convex portion 220 and the second convex portion 230 , which can facilitate the contact operation between the movable spring 200 and the static contact 110 , thereby improving the contact stability between the two.

[0061] It is worth noting that when arranging the contact portion on the surface of the dynamic spring 200, there are various possible configurations of the contact portion on the surface of the dynamic spring 200. In this case, in conjunction with the various structural configurations of the surface of the static contact 110, the contact assembly 10 provided in the embodiment of the present application has various possible configurations, including at least one of the following configurations.

[0062] To provide a clearer understanding of the contact assembly 10 provided in the embodiments of the present application, the arrangement direction of the two stationary contacts 110 is exemplarily defined as the X-direction, and the arrangement direction of the movable spring 200 and the stationary contact assembly 100 is defined as the Z-direction, i.e., the direction of motion of the movable spring 200. The Z-direction is perpendicular to the X-direction. Furthermore, as shown in FIG4 , there is also a Y-direction, which is perpendicular to both the X-direction and the Z-direction. It is noteworthy that the length direction of the movable spring 200 is parallel to the X-direction, and the width direction of the movable spring 200 is parallel to the Y-direction.

[0063] In Example 1, as shown in FIG4 , the first protrusion 220 is a strip-shaped structure, the length of which is parallel to the width of the dynamic spring 200; all contact portions within one contact region S are located on the first protrusion 220; the second protrusion 230 is a strip-shaped structure, the length of which is parallel to the length of the dynamic spring 200; and all contact portions within another contact region S are located on the second protrusion 230. For example, the first protrusion 220 is provided with two contact portions, as shown in FIG4 , and the second protrusion 230 is provided with two contact portions, as shown in FIG4 .

[0064] It should be understood that in this embodiment, the first convex portion 220 extends along the Y direction and the second convex portion 230 extends along the X direction. At this time, the arrangement of the first convex portion 220 and the second convex portion 230 can be understood as one horizontal and one vertical.

[0065] It should be noted that, in the contact assembly 10 provided in the embodiment of the present application, the static contact 110 can contact one horizontal and one vertical protrusion on the dynamic spring 200, ensuring that each static contact 110 effectively achieves multi-position contact with the corresponding protrusion.

[0066] It is worth noting that the number of first protrusions 220 in the contact area S is not limited to the one shown in Figure 4. Similarly, the number of second protrusions 230 in another contact area S is not limited to the one shown in Figure 4 and can be set according to needs, which will not be repeated here.

[0067] In a specific embodiment of this example, as shown in FIG5 , the static contact 110 has a groove 111 on the side facing the movable spring 200. The groove 111 extends through the static contact 110 in a plane perpendicular to the arrangement direction of the static contact 110 and the movable spring 200 (i.e., in a plane formed by the X-direction and the Y-direction). For example, the groove 111 separates each static contact 110 into two sub-portions 112, each of which is used to contact or disengage with a corresponding contact portion.

[0068] It is understood that in this specific implementation, taking the example of two contact portions on the first protrusion 220, each sub-portion 112 of the static contact 110 separated by the groove 111 is used to make contact with or disengage from a contact portion on the first protrusion 220. When each sub-portion 112 contacts a contact portion, a contact position exists between the two.

[0069] It is worth noting that when the groove 111 is provided on the static contact 110, the arrangement direction of the two sub-portions 112 in the static contact 110 is preferably consistent with the extension direction of the corresponding first protrusion 220 or second protrusion 230 to ensure the contact reliability between the static contact 110 and the contact portion. Accordingly, it can be specifically configured that: in the static contact 110 corresponding to the first protrusion 220, the arrangement direction of the two sub-portions 112 is parallel to the extension direction of the first protrusion 220, that is, the arrangement direction of the two sub-portions 112 on the static contact 110 is parallel to the Y direction; and / or, in the static contact 110 corresponding to the second protrusion 230, the arrangement direction of the two sub-portions 112 is parallel to the extension direction of the second protrusion 230, that is, the arrangement direction of the two sub-portions 112 on the static contact 110 is parallel to the X direction.

[0070] In another specific embodiment of this example 1, as shown in Figures 6 to 8, the static contact 110 is provided with a recess 113 on the side facing the movable spring 200; along the circumference of the static contact 110, part of the static contact 110 surrounding the recess 113 is used to contact or disengage with the corresponding contact portion.

[0071] It will be understood that in this specific embodiment, the portion of the static contact 110 surrounding the recess 113 is used to contact or disengage with the contact portion on the dynamic spring 200. For example, the portion of the static contact 110 surrounding the recess 113 is defined as the surrounding portion 114. As shown in Figures 7 and 8, taking the example of two contact portions on the first protrusion 220, as shown in Figure 6, the surrounding portion 114 on one static contact 110 is used to contact or disengage with the two contact portions on the first protrusion 220.

[0072] It should be noted that in the contact assembly 10 provided in the embodiment of the present application, the surrounding portion 114 of the static contact 110 is a continuous annular structure, which simplifies the molding operation of the static contact 110 and does not require the assembly direction of the static contact 110 during assembly. When the static contact 110 is assembled in any orientation, at least two contact positions are guaranteed between each static contact 110 and the dynamic spring 200, thereby ensuring the probability of multi-position contact and improving product reliability.

[0073] For example, a turning method may be used in the process of manufacturing the static contact 110. In this case, the static contact 110 is easier to turn, which can reduce the manufacturing difficulty, improve the manufacturing efficiency, and reduce the manufacturing cost.

[0074] It is worth noting that when the recess 113 is specifically provided, the structure of the recess 113 can be circular or polygonal. The polygon can be a quadrilateral, a pentagon or a hexagon. Of course, the number of sides of the polygon can also be a polygon of other numbers, which will not be described in detail.

[0075] It can be understood that when the recess 113 is circular, the surrounding portion 114 is an annular structure; when the recess 113 is polygonal, along the radial direction of the static contact 110, the outer edge of the surrounding portion 114 is circular, and the inner edge is a polygon corresponding to the recess 113.

[0076] In addition, it is worth noting that the recess 113 can also be other irregular shapes, which can be specifically set according to needs and will not be described in detail here.

[0077] When specifically arranging the static contacts 110, the recesses 113 on the two static contacts 110 may be of the same or different shapes. Of course, when the recesses 113 on the two static contacts 110 are of the same shape, the assembly difficulty can be reduced to improve the assembly efficiency.

[0078] In Example 2, as shown in Figures 9 to 14, the first protrusion 220 is a columnar structure, and the dynamic spring 200 is provided with at least two first protrusions 220 in one contact area S, and each first protrusion 220 is provided with a contact portion; the second protrusion 230 is a columnar structure, and the dynamic spring 200 is provided with at least two second protrusions 230 in another contact area S, and each second protrusion 230 is provided with a contact portion.

[0079] In a specific embodiment of this second example, as shown in Figures 10 to 13 , the movable spring 200 is provided with two first protrusions 220 in one contact region S, the two first protrusions 220 being spaced apart along the length of the movable spring 200. The movable spring 200 is also provided with four second protrusions 230 in another contact region S. Two of the four second protrusions 230 are spaced apart along the length of the movable spring 200, forming a first protrusion group. The remaining two of the four second protrusions 230 are spaced apart along the length of the movable spring 200, forming a second protrusion group. This second protrusion group and the first protrusion group are spaced apart along the width of the movable spring 200. The second protrusion group and the first protrusion group are schematically indicated by dashed lines in Figure 10 .

[0080] It is understandable that the number of the first protrusions 220 in each contact area S can also be set to other values ​​as long as the number is greater than 2, and the details will not be repeated.

[0081] It should be understood that in this embodiment, as shown in Figure 11, the two first protrusions 220 are arranged at intervals along the X direction. At this time, the two first protrusions 220 are smaller in size in the Y direction, forming a structure similar to a "horizontal" structure; the first protrusion group and the second protrusion group formed by the four second protrusions 230 are arranged at intervals along the Y direction. At this time, the four second protrusions 230 are larger in size in the Y direction, forming a structure similar to a "vertical" structure.

[0082] It should be noted that, in the contact assembly 10 provided in the embodiment of the present application, the static contact 110 contacts one horizontal and one vertical protrusion on the dynamic spring 200 , ensuring effective multi-position contact between each static contact 110 and the corresponding protrusion.

[0083] Continuing with the structure shown in Figure 11, in one embodiment, the movable spring 200 has a centerline extending parallel to the X-direction. The axis of the first protrusion 220 intersects the centerline, and the second protrusion group and the first protrusion group are arranged symmetrically with respect to the centerline. It will be appreciated that this structural arrangement in this embodiment can increase the probability of multi-position contact between the stationary contact assembly 100 and the movable spring 200, thereby improving product reliability.

[0084] In another embodiment, the stationary contact 110 is provided with a protruding contact protrusion on the side facing the movable spring 200, and the contact protrusion forms the contact portion. It is worth noting that in this embodiment, the contact portion is provided on the stationary contact 110 rather than the movable spring 200. As shown in FIG14 , a contact protrusion 115 can be provided on the stationary contact 110, and the contact protrusion 115 has a contact portion for contacting or disengaging with the movable spring 200.

[0085] It should be understood that the shape and number of the contact protrusions 115 on the static contact 110 can be set according to needs. For example, the contact protrusions 115 can be either strip-shaped or columnar. As shown in FIG14 , taking the contact protrusions 115 as a columnar structure as an example, one static contact 110 can be provided with two contact protrusions 115, and another static contact 110 can be provided with four contact protrusions 115.

[0086] In one embodiment, as shown in FIG15 , two contact portions within a contact region S form a first connecting line a. This first connecting line forms an angle greater than 0 degrees with the length direction (i.e., the X direction) of the dynamic spring 200 , meaning that the two contact portions forming the first connecting line a cannot be located on the same straight line along the X direction.

[0087] Continuing with FIG15 , of the two contact portions forming the first connection line a, one contact portion forms a second connection line b with a contact portion within the other contact region S, and the other contact portion forms a third connection line c with the same contact portion within the other contact region S. The third connection line a, the second connection line b, and the first connection line c form a triangular region. It will be appreciated that FIG15 illustrates the contact portion being provided on the movable spring 200. Of course, when the contact portion 15 is provided on the stationary contact 110, the first connection line a, the second connection line b, and the third connection line c can also be formed. The details will not be repeated here.

[0088] Taking the structure of Example 2 shown in Figure 10 as an example, as shown in Figure 15 , any two contact portions aligned along the width of the dynamic spring 200 within the contact region S where the second protrusion 230 is provided along the X-direction form a first connecting line a. Simultaneously, starting from the two contact portions forming this first connecting line a, connecting the same contact portions within another contact region S can form different second connecting lines b and third connecting lines c. Figure 15 exemplifies the triangular area formed by the first connecting line a, the second connecting line b, and the third connecting line c using three line types.

[0089] It can be understood that the first connection line a connects the center positions of the two contact portions. Similarly, the second connection line b connects the center positions of the two contact portions. The third connection line c connects the center positions of the two contact portions.

[0090] The contact assembly 10 provided in the present application also includes a contact spring. The contact spring presses the movable spring 200 on the side facing away from the stationary contact assembly 100, so that the movable spring 200 contacts the stationary contact 110, and the contact spring's force application point is located within the triangular region. When arranging the contact spring, the contact spring is placed along the Z direction on the side of the movable spring 200 facing away from the stationary contact assembly 100. Specifically, one end of the contact spring along the Z direction contacts the surface of the side of the movable spring 200 facing away from the stationary contact 110, so that the contact spring presses the movable spring 200 toward the stationary contact 110. For example, the contact spring's force application point is located at the position shown in FIG. 15 .

[0091] For example, the force application point of the contact spring is schematically shown in Figure 15. When the force application point of the contact spring is located in the triangular area, the contact stability of multiple points can be guaranteed, and the movable spring 200 is not easy to deflect with better compatible contact stability, thereby avoiding the unstable contact due to the changing electric repulsive force, the generation of contact vibration, and the occurrence of contact noise.

[0092] In one specific embodiment, the contact spring is formed by a coil spring. It will be appreciated that the contact spring's supporting force is an annular force, with the point of application equivalently located at the center of the annular shape. In this specific embodiment, since the compression spring is a coil spring, the intersection of the contact spring's axis (the contact spring's force application line) and the dynamic spring 200 serves as the contact spring's force application point.

[0093] In one embodiment, as shown in FIG. 4 , the dynamic spring 200 includes a main body 210 . The main body 210 is a plate-shaped structure or a columnar structure, which can be specifically configured according to needs.

[0094] In a specific embodiment, as shown in Figures 4 and 10, the first protrusion 220 and the second protrusion 230 can be simultaneously formed on the surface of the main body 210 when the main body 210 is cast; or, the first protrusion 220 and the second protrusion 230 can be formed by stretching a local area of ​​the main body 210 along the Z direction; or, the first protrusion 220 and the second protrusion 230 can be components that are prepared separately or installed on the surface of the main body 210.

[0095] It should be noted that the structural arrangement in the embodiment of the present disclosure can reduce the difficulty of manufacturing, improve the manufacturing efficiency, and thus reduce the manufacturing cost. At the same time, this structural arrangement can ensure the structural strength of the dynamic spring 200, thereby ensuring the stability and service life of the relay.

[0096] In another specific embodiment, the raw material of the main body 210 of the dynamic spring 200 is cut to form a first protrusion 220 and a second protrusion 230 on the surface of the main body 210. It should be noted that the structural design of the embodiment of the present disclosure simplifies the manufacturing process, improves manufacturing efficiency, and reduces manufacturing costs.

[0097] Finally, it should be noted that: it is understandable that the various embodiments / implementations provided in this application can be combined with each other without causing any contradiction, and they will not be illustrated one by one here.

[0098] In the application examples, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. Terms such as "installed", "connected", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the application examples can be understood according to the specific circumstances.

[0099] In the description of the application embodiments, it should be understood that the terms "up", "down", "left", "right", "front", "back", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the application embodiments and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the application embodiments.

[0100] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the claimed invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0101] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A contact component, characterized in that, Comprising: A static contact set and a moving spring. The static contact set includes two static contacts; both ends of the moving spring can contact or disengage from the corresponding static contacts to form two contact areas; at least one of the static contacts and the moving spring in each contact area has a contact part, and the number of contact parts in each contact area is at least two, and the contact parts are used to achieve the contact and disengagement between the moving spring and the static contacts.

2. The contact assembly according to claim 1, wherein The moving spring is located on one side of the static contact set. At least two contact parts in one contact area form a first dimension in the width direction of the moving spring, and at least two contact parts in the other contact area form a second dimension in the width direction of the moving spring, and the first dimension is smaller than the second dimension.

3. The contact assembly according to claim 2, wherein The moving spring is provided with a first convex part in one contact area, and the contact parts in the one contact area are located on the first convex part; the moving spring is provided with a second convex part in the other contact area, and the contact parts in the other contact area are located on the second convex part.

4. The contact assembly according to claim 3, characterized in that, The first convex part is a strip-shaped structure, and the length direction of the first convex part is parallel to the width direction of the moving spring; each of the contact parts in the one contact area is located on the first convex part; The second convex part is a strip-shaped structure, and the length direction of the second convex part is parallel to the length direction of the moving spring; each of the contact parts in the other contact area is located on the second convex part.

5. The contact component according to claim 4, wherein The static contact is provided with a groove on the side facing the moving spring, and in a plane perpendicular to the arrangement direction of the static contact and the moving spring, the groove penetrates the static contact; the static contact includes two sub-parts separated by the groove, and each sub-part is used to contact or disengage from the contact part.

6. The contact assembly according to claim 5, wherein, Among the static contacts corresponding to the first convex part, the arrangement direction of the two sub-parts in the static contact is parallel to the extension direction of the first convex part; And / or, among the static contacts corresponding to the second convex part, the arrangement direction of the two sub-parts in the static contact is parallel to the extension direction of the second convex part.

7. The contact component according to claim 4, wherein The static contact is provided with a depression on the side facing the moving spring; along the circumferential direction of the static contact, a part of the static contact surrounding the depression is used to contact or disengage from the contact part.

8. The contact component according to claim 3, wherein The first convex part is a columnar structure, the moving spring is provided with at least two first convex parts in one contact area, and each first convex part is provided with one contact part; the second convex part is a columnar structure, the moving spring is provided with at least two second convex parts in the other contact area, and each second convex part is provided with one contact part.

9. The contact component according to claim 8, wherein The movable spring is provided with two first protrusions in one of the contact areas, and the two first protrusions are arranged at intervals along the length direction of the movable spring; the movable spring is provided with four second protrusions in another of the contact areas, two of the four second protrusions are arranged at intervals along the length direction of the movable spring to form a first protrusion group, and the remaining two of the four second protrusions are arranged at intervals along the length direction of the movable spring to form a second protrusion group, and the second protrusion group and the first protrusion group are arranged at intervals along the width direction of the movable spring.

10. The contact assembly according to claim 9, wherein The movable spring has a center line, and the extension direction of the center line is parallel to the length direction of the movable spring; the axis of the first convex portion intersects with the center line, and the first convex portion group and the second convex portion group are symmetrically arranged relative to the center line.

11. The contact component according to claim 2, characterized in that, The stationary contact is provided with a protruding contact convex portion on a side facing the movable spring, and the contact convex portion is provided with the contact portion.

12. The contact component according to any one of claims 3-11, characterized in that, Two contact portions in one contact area form a first connecting line, and the first connecting line forms an angle greater than 0 degrees with the length direction of the dynamic spring; in the two dynamic spring contact areas forming the first connecting line, one contact portion and a dynamic spring contact area in the other contact area form a second connecting line, and the other contact portion and the same dynamic spring contact area in the other contact area form a third connecting line; the third connecting line, the second connecting line and the first connecting line form a triangular area; The contact assembly further comprises a contact spring, wherein the contact spring presses the movable spring to a side away from the stationary contact group so that the movable spring contacts the stationary contact; and the force application point of the contact spring is located within the triangular region.

13. The contact component according to any one of claims 1-11, characterized in that, The dynamic spring comprises a main body portion, and the main body portion is a plate-shaped structure or a columnar structure.

14. A relay, characterized in that, Comprising the contact assembly according to any one of claims 1-13.

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