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 moving spring and a stationary contact set, wherein two ends of the moving spring can move relative to the stationary contact set so as to make contact with or disengage from the stationary contact set; the stationary contact set comprises two stationary contacts; a recess is provided on one side of each stationary contact; in the circumferential direction of each stationary contact, the part of the stationary contact around the corresponding recess forms a contact contact area; and at least three moving spring contact portions are provided on one side of the moving spring, the at least three moving spring contact portions correspond to the contact contact areas of the two stationary contacts, and the moving spring contact portions are configured to make contact with or disengage from the contact contact areas corresponding thereto. In the contact assembly, at least three contact positions can be formed between the stationary contact set and the moving spring, so that the contact stability between the stationary contacts and the moving spring is ensured, and the possibility of vibration between the stationary contacts and the moving spring is reduced, thereby guaranteeing the structural performance of a relay.

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 202420130374.4 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 increasing popularity and development of new energy electric vehicles, noise is a growing concern for customers. Relay contacts carry the power. When current flows through the contacts, it generates electrodynamic repulsion, and varying currents produce varying electrodynamic repulsion. If the contacts form point-to-surface contact (i.e., two contact points), the varying electrodynamic repulsion can lead to unstable contact, causing vibration and, in turn, contact noise, which can affect the structural performance of the relay.

[0005] Application Contents

[0006] An embodiment of the present application provides a contact assembly and a relay, which can form at least three contact positions between the static contact group and the dynamic spring to ensure the stability of the contact between the static contact and the dynamic spring, reduce the possibility of vibration between the two, and thus ensure the structural performance of the relay.

[0007] An embodiment of the present application provides a contact assembly, comprising: a movable spring and a stationary contact group, wherein both ends of the movable spring can move relative to the stationary contact group to contact or disengage from the stationary contact group; wherein:

[0008] The static contact group includes two static contacts; a recess is provided on one side of each static contact; along the circumference of the static contact, a portion of the static contact surrounding the recess forms a contact contact area;

[0009] At least three dynamic spring contact portions are provided on one side of the dynamic spring, and the at least three dynamic spring contact portions correspond to the contact contact areas of the two static contacts, and the dynamic spring contact portions are used to contact or disengage with the corresponding contact contact areas.

[0010] According to some embodiments of the application, the movable spring is located on one side of the static contact, the recess is arranged on the side of each static contact facing the movable spring, at least three movable spring contact portions are arranged on the side of the movable spring facing the static contact, and the movable spring is provided with a first convex portion and a second convex portion on the side facing the static contact, and the second convex portion and the first convex portion are spaced apart in the length direction of the movable spring; at least two of the at least three movable spring contact portions are located on the first convex portion, and at least one movable spring contact portion is located on the second convex portion.

[0011] According to some embodiments of the application, the movable spring is provided with four movable spring contact portions on the side facing the static contact; among the four movable spring contact portions, two movable spring contact portions are located at the first convex portion, and two movable spring contact portions are located at the second convex portion.

[0012] According to some embodiments of the application, the arrangement direction of the two dynamic spring contact portions on the first protrusion is parallel to the width direction of the dynamic spring, and the arrangement direction of the two dynamic spring contact portions on the second protrusion is parallel to the length direction of the dynamic spring.

[0013] According to some embodiments of the application, the movable spring is provided with three movable spring contact portions on the side facing the static contact, two of the three movable spring contact portions are located at the first convex portion, and one movable spring contact portion is located at the second convex portion.

[0014] According to some embodiments of the application, an arrangement direction of the two dynamic spring contact portions on the first protrusion is parallel to a width direction of the dynamic spring.

[0015] 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; the second protrusion is a strip-shaped structure, and the length direction of the second protrusion is parallel to the length direction of the dynamic spring.

[0016] According to some embodiments of the application, the dynamic spring includes a main body portion and the dynamic spring contact portion, the dynamic spring contact portion is provided on the main body portion, and the main body portion is a plate-shaped structure or a columnar structure.

[0017] According to some embodiments of the application, the recess is circular or polygonal.

[0018] An embodiment of the present application also provides a relay, comprising a contact assembly provided by any of the above technical solutions.

[0019] One embodiment of the above application has at least the following advantages or beneficial effects:

[0020] In the contact assembly provided herein, the movable spring contact portion is configured to contact the corresponding contact area on the stationary contact to form a contact position. The contact area on the stationary contact is recessed. This simplifies the molding process for the stationary contact, and there are no requirements for the orientation of the stationary contacts during assembly. When the stationary contacts are assembled in any orientation, at least three contact positions are guaranteed between the two stationary contacts and the movable spring.

[0021] Accordingly, the contact assembly provided by this application, by shaping the static contacts, can form at least three contact positions between the contact contact areas surrounding the recesses within the two static contacts and the dynamic spring, thereby ensuring the probability of multi-position contact between the two and improving product reliability. Furthermore, by providing at least three contact positions between the two static contacts and the dynamic spring, the contact assembly provided by this application can reduce contact resistance and electrokinetic repulsion, thereby ensuring the stability of contact between the static contacts and the dynamic spring and reducing the possibility of vibration between the two, thereby safeguarding the structural performance of the relay. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG1 is a schematic diagram showing the structure of a relay provided in an embodiment of the present application;

[0023] FIG2 shows a cross-sectional view of the section AA in FIG1 ;

[0024] FIG3 shows a cross-sectional view at BB in FIG2 ;

[0025] FIG4 shows a schematic structural diagram of a contact assembly provided in an embodiment of the present application;

[0026] FIG5 shows a top view of the structure in FIG4 ;

[0027] FIG6 shows a cross-sectional view of CC in FIG5 ;

[0028] FIG7 shows a cross-sectional view at DD in FIG6 ;

[0029] FIG8 shows another cross-sectional view of the contact assembly in the embodiment of the present application;

[0030] FIG9 shows a schematic diagram of the three-dimensional structure of the static contact group in FIG4 ;

[0031] FIG10 shows a second structural schematic diagram of a contact assembly provided in an embodiment of the present application;

[0032] FIG11 shows a top view of the structure in FIG10 ;

[0033] FIG12 shows a cross-sectional view of the section EE in FIG11 ;

[0034] FIG13 shows a cross-sectional view at FF in FIG12 ;

[0035] FIG14 shows a first schematic plan view of a stationary contact in a contact assembly provided by an embodiment of the present application;

[0036] FIG15 shows a second schematic plan view of a stationary contact in a contact assembly provided by an embodiment of the present application;

[0037] FIG16 shows a second schematic plan view of the static contact in the contact assembly provided in an embodiment of the present application.

[0038] The description of the reference numerals is as follows: 100, contact assembly; 110, static contact group; 111, static contact; 1111, recess; 1112, contact contact area; 120, movable spring; 121, first protrusion; 122, second protrusion; 123, main body; 200, insulating cover; 300, push rod assembly. Specific embodiments

[0039] 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.

[0040] As shown in FIG. 1 to FIG. 3 , an embodiment of the present application provides a relay, which includes a contact assembly 100 , an insulating cover 200 and a push rod assembly 300 .

[0041] 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.

[0042] The contact assembly 100 is disposed within the insulating cover 200. In this embodiment, the insulating cover 200 is a ceramic cover. The contact assembly 100 includes a static contact group 110 and a dynamic spring 120. The static contact group 110 includes two static contacts 111. The static contact 111 is fixed relative to the insulating cover 200, and one end of the static contact 111 extends to the outside of the insulating cover 200 to form a lead-out end. The other end of the static contact 111, located within the insulating cover 200, is used to contact the dynamic spring 120 to form a contact position. The dynamic spring 120 is movably disposed within the insulating cover 200, and is used to contact or disengage with its corresponding static contact 111 to achieve the closing or opening of the contact assembly 100.

[0043] The push rod assembly 300 is movable relative to the insulating cover 200. When the push rod assembly 300 reciprocates, it drives the dynamic spring 120 to move, thereby closing or opening the contact assembly 100. It should be understood that the push rod assembly 300 is generally encircled by a dotted line in Figure 2 , and the specific position may vary, which will not be detailed here.

[0044] The contact assembly 100 in the relay provided in the embodiment of the present application can be the contact assembly 100 in any of the following technical solutions. Of course, the contact assembly 100 can also be configured in other ways according to needs, which will not be described in detail here.

[0045] Referring to the structures shown in Figures 4 to 13 in conjunction with Figures 1 to 3 , an embodiment of the present application provides a contact assembly 100. The contact assembly 100 includes a stationary contact assembly 110 and a movable spring 120 , wherein both ends of the movable spring 120 are movable relative to the stationary contact assembly 110 to contact or disengage the stationary contact assembly 110 .

[0046] As shown in Figures 4 to 8 , the stationary contact assembly 110 includes two stationary contacts 111. A recess 1111 is defined on one side of each stationary contact 111. Along the circumference of each stationary contact 111, a portion of the stationary contact 111 surrounding the recess 1111 forms a contact area 1112. A movable spring 120 has at least three movable spring contact portions (shaded in Figure 4 ) defined on one side. These at least three movable spring contact portions correspond to the contact areas 1112 of the two stationary contacts 111, and are configured to engage or disengage with their corresponding contact areas 1112.

[0047] It is understood that the contact between the dynamic spring contact portion and the contact area 1112 can be any form of contact, such as surface contact, point contact, or line contact. The number of dynamic spring contact portions provided on the dynamic spring 120 can be three, four, five, or other. For example, FIG4 shows three dynamic spring contact portions as filled areas. It should be understood that the shape of each dynamic spring contact portion is not limited to that shown in FIG4 , and is merely an example.

[0048] It is worth noting that the movable spring contact portion contacts the contact area 1112 of its corresponding stationary contact 111 to form a contact position. Accordingly, at least three contact positions are formed between the multiple movable spring contact portions on the movable spring 120 and the two stationary contacts 111. It should be understood that more movable spring contact portions can further reduce contact resistance and electrokinetic repulsion.

[0049] It should be noted that in the contact assembly 100 provided in the embodiment of the present application, the contact area 1112 on the stationary contact 111 is arranged around the recess 1111. This simplifies the molding operation of the stationary contact 111, and during assembly, there are no requirements for the assembly orientation of the stationary contact 111. When the stationary contacts 111 are assembled in any orientation, at least three contact positions are ensured between the two stationary contacts 111 and the movable spring 120.

[0050] For example, a turning method may be used in the process of manufacturing the static contact 111. In this case, the contact area 1112 surrounding the recess 1111 is easier to turn, which can reduce the manufacturing difficulty, improve the manufacturing efficiency, and reduce the manufacturing cost.

[0051] In general, the contact assembly 100 provided in the embodiment of the present application can form at least three contact positions between the contact contact area 1112 surrounding the recess 1111 in the two static contacts 111 and the movable spring 120 by shaping the static contact 111, thereby ensuring the probability of forming multi-position contact between the two and improving the reliability of the product.

[0052] At the same time, the contact assembly 100 provided in the embodiment of the present application can reduce contact resistance and electric repulsion by setting at least three contact positions between the two static contacts 111 and the dynamic spring 120, so as to ensure the stability of the contact between the static contact 111 and the dynamic spring 120, reduce the possibility of vibration between the two, and thus ensure the structural performance of the relay.

[0053] Taking the example of a dynamic spring 120 with three dynamic spring contact portions, as shown in Figures 4 and 7 , it can be seen that the three contact locations formed by the dynamic spring 120 and the two static contacts 111 cover a roughly triangular area, making the contact more stable. Accordingly, the contact assembly 100 provided in the embodiment of the present application can better accommodate contact stability, making the dynamic spring 120 less likely to deflect, thereby avoiding unstable contact due to the changing electrodynamic repulsive force, which can cause vibration and further contact noise.

[0054] To provide a clearer understanding of the contact assembly 100 provided in the embodiments of the present application, the arrangement direction of the two stationary contacts 111 is exemplarily defined as the X-direction, and the arrangement direction of the movable spring 120 and the stationary contact assembly 110 is defined as the Z-direction, i.e., the direction of motion of the movable spring 120. 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 120 is parallel to the X-direction, and the width direction of the movable spring 120 is parallel to the Y-direction.

[0055] In one embodiment, as shown in Figures 4 to 7, the movable spring 120 is located on one side of the static contact 111, the recess 1111 is provided on the side of each static contact 111 facing the movable spring 120, at least three movable spring contact portions are provided on the side of the movable spring 120 facing the static contact 111, and the movable spring 120 is provided with a first convex portion 121 and a second convex portion 122 on the side facing the static contact 111, and the second convex portion 122 is spaced apart from the first convex portion 121 in the length direction (i.e., the X direction) of the movable spring 120; at least two of the at least three movable spring contact portions are located on the first convex portion 121, and at least one movable spring contact portion is located on the second convex portion 122.

[0056] It is understood that since the stationary contact 111 is fixed to the insulating cover 200, the position of the stationary contact 111 is relatively fixed. If the movable spring 120 has a certain amount of string movement along its length, since the movable spring 120 is long enough, the contact portion between the stationary contact 111 and the movable spring 120 is relatively fixed, thereby ensuring effective contact between the stationary contact 111 and the movable spring 120, thereby improving the consistency of multi-position contact.

[0057] Continuing with the structure shown in Figures 4 to 7 , at least two dynamic spring contact portions are provided on a complete first protrusion 121. Compared to the structure shown in Figures 4 to 7 , the first protrusion 121 can also be configured to include at least two sub-portions, each of which is provided with a dynamic spring contact portion, which contacts the corresponding contact area 1112 to form a contact position. In this case, compared to the structure shown in Figure 6 , the multiple sub-portions are spaced apart and discontinuous. It should be understood that each sub-portion can be a strip-shaped or cylindrical structure, and the details will not be repeated here.

[0058] It is understood that there may be at least two dynamic spring contact portions on the first protrusion 121, and one or at least two dynamic spring contact portions on the second protrusion 122. When there are at least two dynamic spring contact portions on the second protrusion 122, the second protrusion 122 may also include at least two sub-portions, each sub-portion having a dynamic spring contact portion, which is configured to contact the corresponding contact area 1112 to form a contact position.

[0059] Furthermore, it's worth noting that the number of first protrusions 121 on the dynamic spring 120 is not limited to one. For example, referring to the structure shown in FIG8 , the dynamic spring 120 is provided with two first protrusions 121 , each of which is provided with two dynamic spring contact portions. Thus, the two first protrusions 121 are provided with a total of four dynamic spring contact portions. It should be understood that the number of dynamic spring contact portions on each first protrusion 121 is not limited to two, and may be other numbers. The details will not be elaborated here.

[0060] Similarly, the number of second protrusions 122 on the dynamic spring 120 is not limited to one. For example, referring again to the structure shown in FIG8 , the dynamic spring 120 is provided with two second protrusions 122 , each of which is provided with a dynamic spring contact portion. Thus, the two second protrusions 122 are provided with a total of two dynamic spring contact portions. It should be understood that the number of dynamic spring contact portions on a second protrusion 122 is not limited to one and may be other. The details will not be elaborated here.

[0061] In one embodiment, referring to the structures shown in FIG. 4 to FIG. 7 , the arrangement direction of the two dynamic spring contact portions on the first protrusion 121 is parallel to the width direction of the dynamic spring 120 .

[0062] It should be noted that this structural setting can ensure the contact effect between the two dynamic spring contact parts and the corresponding contact contact areas 1112, improve the success probability of multi-position contact between the dynamic spring 120 and the static contact group 110, and improve the stability of the contact, so that the dynamic spring 120 is not easy to deflect, thereby avoiding the unstable contact due to the changing electric repulsive force, thereby avoiding vibration and contact noise.

[0063] There are many possibilities for specifically setting the number of the dynamic spring contact portions on the dynamic spring 120 , at least one of the following examples.

[0064] In Example 1, referring again to the structures shown in Figures 4 to 7 and 10 to 13 , the movable spring 120 has three movable spring contact portions on the side facing the stationary contact 111. Two of the three movable spring contact portions are located on the first protrusion 121, and one is located on the second protrusion 122. As shown in Figures 4 to 7 , in this example, the movable spring contact portion can be provided on the outer side of the second protrusion 122 in the X direction; alternatively, as shown in Figures 10 to 13 , the movable spring contact portion can be provided on the inner side of the second protrusion 122 in the X direction. It should be understood that the outer side in the X direction refers to the side farther from the first protrusion 121 in the X direction, and correspondingly, the inner side in the X direction refers to the side closer to the first protrusion 121 in the X direction.

[0065] Specifically, as shown in Figures 4, 7, and 9, the two movable spring contact portions on the first protrusion 121 are each configured to contact the annular contact area 1112 on one stationary contact 111, thereby forming two contact positions. The movable spring contact portion on the second protrusion 122 is configured to contact the annular contact area 1112 on the other stationary contact 111, thereby forming a single contact position. This structural arrangement allows for the formation of three contact positions between the movable spring 120 and the contact area 1112 surrounding the recess 1111 within the two stationary contacts 111, thereby ensuring the probability of multi-position contact and improving product reliability.

[0066] In addition, it should be noted that the positions of the first convex portion 121 and the second convex portion 122 are not limited to those shown in Figures 4 to 13. For example, the positions of the first convex portion 121 and the second convex portion 122 in the X direction in Figure 4 can be swapped, and the details are not repeated here.

[0067] In one embodiment of this first example, as shown in Figures 4 to 7 and 10 to 13 , the two dynamic spring contact portions on the first protrusion 121 are arranged parallel to the width of the dynamic spring 120, such that the two dynamic spring contact portions on the first protrusion 121 are aligned along the Y direction; the second protrusion 122 and the first protrusion 121 are aligned along the X direction. This structural arrangement ensures effective contact between the two dynamic spring contact portions and the contact contact area 1112, improving contact stability and preventing deflection of the dynamic spring 120. This prevents contact instability caused by varying electrodynamic repulsive forces, which can lead to vibration and contact noise.

[0068] In this first embodiment, referring to the structures shown in Figures 4 to 7 and 10 to 13 , the first protrusion 121 is a strip-shaped structure, and the length direction of the first protrusion 121 is parallel to the width direction of the dynamic spring 120; the second protrusion 122 is a strip-shaped structure, and the length direction of the second protrusion 122 is parallel to the length direction of the dynamic spring 120. It should be understood that in this embodiment, the first protrusion 121 extends along the Y direction, and the second protrusion 122 extends along the X direction. In this case, the arrangement of the first protrusion 121 and the second protrusion 122 can be understood as one horizontal and one vertical.

[0069] It should be noted that in the contact assembly 100 provided in the embodiment of the present application, the recess 1111 on the static contact 111 contacts one horizontal and one vertical protrusion on the movable spring 120, at least ensuring that the first protrusion 121 in contact with the contact contact area 1112 is divided into two to achieve multi-position contact.

[0070] It is worth noting that under the same contact pressure, because the parallel contact resistance is smaller than the contact resistance of a single dynamic spring contact, multi-position contact can reduce the total contact resistance between the relay contacts, reduce the heat generated by the relay, and improve reliability.

[0071] In addition, in the contact assembly 100 provided in the embodiment of the present application, the design of the recess 1111 on the static contact 111 and the vertical arrangement on the movable spring 120 can also achieve current diversion.

[0072] It can be understood that the electromotive repulsion is proportional to the square of the current flowing through it. The electromotive repulsion at multiple points reduces the total electromotive repulsion, which is beneficial to improving the product's short-circuit resistance and enhancing the reliability of the relay.

[0073] In Example 2, the movable spring 120 is provided with four movable spring contact portions on the side facing the static contact 111; among the four movable spring contact portions, two movable spring contact portions are located on the first convex portion 121, and two movable spring contact portions are located on the second convex portion 122. It is worth noting that the number of movable spring contact portions in this example is four. Specifically, the difference between the structural setting in this Example 2 and the structural setting in the above-mentioned Example 1 is that there are two movable spring contact portions on the second convex portion 122. More movable spring contact portions can better reduce the contact resistance and reduce the electric repulsion. At the same time, more movable spring contact portions can ensure the probability of forming multi-position contact between the movable spring 120 and the static contact group 110, thereby improving the reliability of the product.

[0074] In this second example, the arrangement direction of the two dynamic spring contact portions on the first protrusion 121 is parallel to the Y direction, and the arrangement direction of the two dynamic spring contact portions on the second protrusion 122 is parallel to the X direction.

[0075] It should be noted that in the contact assembly 100 provided in the embodiment of the present application, the recess 1111 on the static contact 111 contacts the horizontal and vertical protrusions on the movable spring 120, which can ensure that the first protrusion 121 in contact with the contact contact area 1112 is divided into two, and ensure that the second protrusion 122 in contact with the other contact contact area 1112 is divided into two, thereby effectively realizing multi-position contact.

[0076] It is worth noting that in this example 2, it can also be set as follows: the first protrusion 121 is a strip structure, and the length direction of the first protrusion 121 is parallel to the width direction of the dynamic spring 120; the second protrusion 122 is a strip structure, and the length direction of the second protrusion 122 is parallel to the length direction of the dynamic spring 120. The details are not repeated here.

[0077] In one embodiment, the dynamic spring 120 includes a main body portion 123 . The main body portion 123 is a plate-shaped structure or a columnar structure. The specific configuration can be determined according to actual needs and will not be described in detail herein.

[0078] In a specific embodiment, please continue to refer to the structures shown in Figures 4 to 13. The first protrusion 121 and the second protrusion 122 are arranged on one side surface of the main body 123 facing the static contact group 110, and protrude from the main body 123 toward the static contact group 110. The dynamic spring contact portion is arranged on the main body 123 through the first protrusion 121 or the second protrusion 122.

[0079] It is understood that, as shown in Figures 4 and 10, in the embodiment of the present disclosure, the first protrusion 121 and the second protrusion 122 are structures that originally protrude from the surface of the main body 123. For example, the first protrusion 121 and the second protrusion 122 can be formed on the surface of the main body 123 simultaneously when the main body 123 is cast; or, the first protrusion 121 and the second protrusion 122 can be formed by stretching a local area of ​​the main body 123 along the Z direction; or, the first protrusion 121 and the second protrusion 122 can be separately prepared or installed on the surface of the main body 123.

[0080] It should be noted that the structural arrangement in the embodiment of the present disclosure can reduce the difficulty of manufacturing, improve the efficiency of manufacturing, and reduce the manufacturing cost. At the same time, the structural arrangement can ensure the structural strength of the dynamic spring 120 to ensure the stability and service life of the relay.

[0081] In another specific embodiment, the raw material of the main body 123 of the movable spring 120 is cut to form a first protrusion 121 and a second protrusion 122 on the surface of the main body 123. The movable spring contact portion is provided on the main body 123 through the first protrusion 121 or the second protrusion 122.

[0082] It should be noted that the structural design in the embodiments of the present disclosure simplifies the preparation process, improves preparation efficiency and reduces preparation cost.

[0083] In one embodiment, as shown in Figures 14 to 16, the recess 1111 is a circle or polygon as shown in Figure 14. The polygon can be a hexagon as shown in Figure 15, a quadrilateral as shown in Figure 16, and of course, the polygon can be a pentagon or other number of polygons, which will not be described in detail.

[0084] It can be understood that when the recess 1111 is circular, the contact contact area 1112 is an annular structure; when the recess 1111 is polygonal, along the radial direction of the static contact 111, the outer edge of the contact contact area 1112 is circular, and the inner edge is a polygon corresponding to the recess 1111.

[0085] In addition, it is worth noting that the recess 1111 can also be other irregular shapes, which can be specifically set according to needs and will not be described in detail here.

[0086] When the static contacts 111 are specifically arranged, the recesses 1111 on the two static contacts 111 may be arranged to have the same or different shapes. Of course, when the recesses 1111 on the two static contacts 111 are arranged to have the same shape, the assembly difficulty can be reduced to improve the assembly efficiency.

[0087] 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.

[0088] In the application embodiments, 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 be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the application embodiments can be understood according to the specific circumstances. It is worth noting that "three or four" in the above examples are only used for description, and there are other possibilities for the number, which will not be described in detail.

[0089] 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.

[0090] 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.

[0091] 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 moving contact spring and a static contact set, and both ends of the moving contact spring can move relative to the static contact set to contact or disengage from the static contact set; wherein: The static contact set includes two static contacts; a recess is provided on one side of each static contact; along the circumferential direction of the static contact, a part of the static contact surrounding the recess forms a contact area of the contact; At least three moving contact parts are provided on one side of the moving contact spring, the at least three moving contact parts correspond to the contact areas of the two static contacts, and the moving contact parts are used to contact or disengage from the corresponding contact areas of the contacts.

2. The contact component according to claim 1, characterized in that, The moving contact spring is located on one side of the static contact, the recess is provided on one side of each static contact facing the moving contact spring, at least three moving contact parts are provided on one side of the moving contact spring facing the static contact, and a first convex part and a second convex part are further provided on the side of the moving contact spring facing the static contact, and the second convex part and the first convex part are arranged at intervals in the length direction of the moving contact spring; at least two of the at least three moving contact parts are located on the first convex part, and at least one moving contact part is located on the second convex part.

3. The contact assembly according to claim 2, characterized in that, The arrangement direction of the two moving contact parts on the first convex part is parallel to the width direction of the moving contact spring.

4. The contact component according to claim 2, characterized in that, Four moving contact parts are provided on the side of the moving contact spring facing the static contact; among the four moving contact parts, two moving contact parts are located on the first convex part, and two moving contact parts are located on the second convex part.

5. The contact assembly according to claim 4, wherein The arrangement direction of the two moving contact parts on the first convex part is parallel to the width direction of the moving contact spring, and the arrangement direction of the two moving contact parts on the second convex part is parallel to the length direction of the moving contact spring.

6. The contact component according to claim 2, characterized in that, Three moving contact parts are provided on the side of the moving contact spring facing the static contact, two of the three moving contact parts are located on the first convex part, and one moving contact part is located on the second convex part.

7. The contact component according to claim 6, characterized in that The arrangement direction of the two moving contact parts on the first convex part is parallel to the width direction of the moving contact spring.

8. The contact component according to any one of claims 2-7, 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 contact spring; 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 contact spring.

9. The contact component according to any one of claims 1-7, characterized in that The moving contact spring includes a body part, and the body part is a plate-shaped structure or a columnar structure.

10. The contact component according to any one of claims 1-7, characterized in that, The recess is circular or polygonal.

11. A relay, characterized in that, Comprising the contact assembly according to any one of claims 1-10.

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