Contact and button switch
By setting the welding and positioning structure between the boss and the contact in the contact, the problem of the contact bridge and the contact gap in the prior art is solved, the quality and reliability of the contact are improved, and more reliable connection and contact are achieved. .
Patent Information
- Application Number
- CN202323552885.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-25
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-25
AI Technical Summary
The quality of existing contacts is not high, and there are easily gaps between the contact bridge and the contact during the riveting process, resulting in unreliable connection.
By setting up a boss and contact welding on the contact bridge, the welding structure and positioning structure improve the connection reliability between the contact bridge and contact, increase the solder filling area and positioning accuracy, and ensure the quality of the contacts.
Effectively fill the gap, improve the reliable connection between the contact bridge and the contacts, enhance the overall quality and reliability of the contacts, avoid misalignment, and improve contact area and reliability.
Smart Images
Figure CN222190491U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of power distribution equipment, and in particular to a contact and a push button switch. Background Art
[0002] Contacts are essential components in power distribution equipment (e.g., circuit breakers, contactors, or push button switches). Power distribution equipment achieves connection based on contact of contacts and disconnection based on separation of contacts.
[0003] Based on the structure of existing contacts, when processing existing contacts, it is usually necessary to connect the contact point and the contact bridge together through a riveting process. However, the quality of the contacts processed through the riveting process is difficult to guarantee. Utility Model Content
[0004] The present application provides a contact and a push button switch to solve the problem of low quality of existing contacts and improve the quality of the contacts.
[0005] In a first aspect, the present application provides a contact. The contact includes a contact point and a contact bridge. The contact bridge includes a contact bridge body and a boss, the boss is connected to the contact bridge body, and the contact point is connected to the boss.
[0006] Taking into account the technical problem of a gap between the contact bridge body and the contact after they are riveted in the existing contacts, in the contacts of the embodiments of the present application, the contact bridge is configured to include a contact bridge body and a boss, so that the contact bridge can be connected to the contact based on the welding of the boss and the contact. Compared with the contact bridge in the prior art that only includes the contact bridge body and the contact bridge body is riveted to the contact, the solder used in welding will be filled between the boss and the contact, filling the gap between the boss and the contact, so that the contact bridge and the contact are reliably connected, thereby improving the quality of the contact.
[0007] In a possible design, the contact further includes a welding structure. The welding structure is arranged on the surface of the boss close to the contact point. Alternatively, the welding structure is arranged on the surface of the contact point close to the boss; or the welding structure is arranged on the surface of the boss close to the contact point and the surface of the contact point close to the boss.
[0008] When the welding structure is arranged on the surface of the boss close to the contact, the area of the surface of the boss close to the contact will increase. When the welding structure is arranged on the surface of the contact close to the boss, the area of the surface of the contact close to the boss will increase. When the welding structure is arranged on the surface of the boss close to the contact and the surface of the contact close to the boss, the area of the surface of the convex strip close to the contact and the area of the surface of the contact close to the boss will both increase. In this way, when welding the boss and the contact, more solder can be arranged between the boss and the contact to ensure reliable connection between the boss and the contact.
[0009] In one possible design, the welding structure is configured as a convex strip.
[0010] Through the above scheme, when the convex strip is set on the boss, the welding surface of the boss and the contact will be converted from the area on the boss connected to the side of the convex strip to the two side surfaces where the convex strip is not connected to the boss. Since the sum of the areas of the two side surfaces where the convex strip is not connected to the boss is greater than the area of the area on the boss connected to the side surface of the convex strip, the solder distributed on the two side surfaces where the convex strip is not connected to the boss will be more than the solder distributed on the area where the convex strip is connected to the side surface of the convex strip, and the solder can connect the boss to the contact more reliably. Similarly, when the convex strip is set on the contact, or the convex strip is set on the boss and the contact, the solder can also connect the boss to the contact more reliably.
[0011] In a possible design, the extension directions of the convex strips are substantially parallel; or, an angle is provided between the extension directions of the convex strips.
[0012] When the extension directions of the convex strips are substantially parallel, the convex strips can be arranged neatly on the boss, and the solder will be located between two adjacent convex strips to connect the convex strips with the contacts. When a non-zero angle is provided between the extension directions of the convex strips, the convex strips can be interlaced on the boss, and the solder will be located in the area surrounded by the convex strips to connect the convex strips with the contacts.
[0013] In one possible design, the welding structure is configured as a welding groove.
[0014] When the soldering groove is provided on the boss and / or the contact, the solder will be located not only on the bottom wall of the soldering groove, but also on the side wall of the soldering groove. In this way, compared with the planar area where the solder is provided on the boss and / or the contact for providing the soldering groove, the area where the solder is provided can be increased, and further, the welding area between the boss and the contact can be increased, and the reliability of the welding between the boss and the contact can be improved.
[0015] In one possible design, the contact also includes a positioning structure, which includes a matching positioning column and a positioning groove, the positioning column is connected to the side of the boss close to the contact, and the positioning groove is arranged on the side of the contact facing the boss; when the contact is connected to the boss, the positioning column can be embedded in the positioning groove to position the contact.
[0016] Through the above solution, during the welding process of the boss and the contact, the positioning column can be embedded in the positioning groove, and the peripheral wall of the positioning column can abut against the side wall of the positioning groove to prevent the contact from moving on the boss and avoid misalignment of the contact and the boss. Furthermore, on the basis that the contact and the boss are not easily misaligned, the welding quality of the boss and the contact can also be improved.
[0017] In a possible design, the contact includes a contact body and a contact ring, the contact body is connected to the boss, and the contact ring is connected to a side of the contact body facing away from the boss.
[0018] Through the above scheme, the contact will contact other contacts in a line contact manner through the contact ring. Compared with the point contact manner between contacts in the prior art, this will increase the contact area between contacts and thereby increase the reliability of contact between contacts.
[0019] In a possible design, the contact ring includes a first sub-ring, and the first sub-ring is connected to an edge portion and / or a middle portion of the contact body.
[0020] Through the above solution, the contact will contact other contacts in a line contact manner through the first sub-ring, thereby increasing the contact area between the contacts and further increasing the reliability of the contact between the contacts.
[0021] In one possible design, the contact ring further includes a second sub-ring, and a distance L1 between an end of the first sub-ring away from the contact body and the contact body, and a distance L2 between an end of the second sub-ring away from the contact body and the contact body are configured to satisfy: L1>L2, or, L1<L2.
[0022] Through the above solution, the first sub-ring and the second sub-ring can complement each other and contact with other contacts in sequence to ensure the linear contact mode and contact area between the contacts of the embodiment of the present application and other contacts.
[0023] In a second aspect, an embodiment of the present application further provides a push button switch, which includes the contact of the first aspect.
[0024] The beneficial effects provided in the above-mentioned second aspect and various possible designs of the above-mentioned second aspect can refer to the beneficial effects brought about by the above-mentioned first aspect and various possible implementation methods of the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0026] Figure 1 Schematic diagram of contacts in some embodiments of the present application.
[0027] Figure 2 This is a first schematic diagram of a welding structure in some embodiments of the present application.
[0028] Figure 3 This is a second schematic diagram of a welding structure in some embodiments of the present application.
[0029] Figure 4It is a cross-sectional view of a contact portion in some embodiments of the present application.
[0030] Figure 5 This is a schematic diagram of a second sub-ring being disposed on a first sub-ring in some embodiments of the present application.
[0031] Figure 6 This is a schematic diagram of a button switch in some embodiments of the present application.
[0032] Description of reference numerals:
[0033] 1- Contact;
[0034] 11-contact bridge; 111-contact bridge body; 112-protrusion;
[0035] 12-contact point: 121-contact point body; 122-contact ring; L-side edge of contact ring; 1221-first sub-ring; 1222-second sub-ring;
[0036] 13-welding structure; 131-convex strip; 132-welding groove;
[0037] 14-positioning structure; 141-positioning column; 142-positioning groove. DETAILED DESCRIPTION
[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover non-exclusive inclusions.
[0040] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiments" in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0041] The directional words appearing in the following description are all directions shown in the drawings, and do not limit the specific structure of the present application. For example, in the description of the present application, the directions or positional relationships indicated by the terms "bottom", "axial", "radial", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must be set in a specific direction, constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application.
[0042] In addition, the terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order, and may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise specified, the meaning of "multiple" refers to more than two (including two), and similarly, "multiple groups" refers to more than two groups (including two).
[0043] "And / or" describes the relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural. The character " / " generally indicates that the associated objects are in an "or" relationship.
[0044] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, the "connection" or "connection" of a mechanical structure may refer to a physical connection. For example, the physical connection may be a fixed connection, such as a fixed connection through a fixing member, such as a fixed connection through a screw, bolt or other fixing member; the physical connection may also be a detachable connection, such as a mutual snap-on or snap-fit connection; the physical connection may also be an integral connection, such as a connection formed by welding, bonding or integral molding. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0045] Contacts are necessary components in some power distribution equipment. Usually, contacts include moving contacts and stationary contacts. When the moving contacts are in contact with the stationary contacts, the power distribution equipment can be connected and distribute power to the load. When the moving contacts are separated from the stationary contacts, the power distribution equipment is disconnected and the load is de-energized.
[0046] The existing contact includes a contact bridge and a contact point. The contact bridge is set as a plate-like structure, and the contact point is set as a columnar structure. When processing the contact bridge and the contact point, the contact point is usually connected to the contact bridge by a riveting process. However, in actual use, the inventor found that in the contact processed by the riveting process, there will be a gap between the contact bridge and the contact point, resulting in poor quality of the contact.
[0047] Based on this, an embodiment of the present application provides a contact, which improves the quality of the contact by welding the boss provided on the contact bridge to the contact point.
[0048] The contact provided in the embodiment of the present application may be the aforementioned moving contact or the aforementioned stationary contact, and the embodiment of the present application does not specifically limit this.
[0049] In addition, the contact provided in the embodiment of the present application can be applied to a contactor, a circuit breaker, a rotary switch or a push button switch, etc., and the embodiment of the present application does not make any special limitation on this.
[0050] To facilitate understanding of the contacts provided by the embodiments of the present application, the contacts of the embodiments of the present application are described in detail below with reference to the accompanying drawings.
[0051] like Figure 1 As shown, the contact 1 of the embodiment of the present application includes a contact point 12 and a contact bridge 11. The contact bridge 11 includes a contact bridge body 111 and a boss 112, the boss 112 is connected to the contact bridge body 111, and the contact point 12 is connected to the boss 112.
[0052] The contact 12 may be configured as a columnar structure, specifically a cylindrical structure or a prism structure, which is not specifically limited in the present embodiment of the application. The contact 12 may be made of silver.
[0053] The contact bridge body 111 may be configured as a plate-like structure. Specifically, it may be configured as a straight plate structure, or it may be configured as a bent structure formed by bending the straight plate structure, which is not specifically limited in the embodiment of the present application. The contact bridge body 111 may be made of copper.
[0054] When the boss 112 is connected to the contact bridge body 111, the boss 112 may be formed by pressing the contact bridge body 111. Exemplarily, when the boss 112 is formed by pressing the contact bridge body 111, a pressure area may be first determined on the plate surface of the contact bridge body 111, and then the pressure area may be pressed so that the pressure area protrudes from the plate surface of the contact bridge body 111 to form the boss 112.
[0055] Exemplarily, the boss 112 can be set as a centrally symmetrical truncated cone-shaped structure. After the boss 112 is connected to the contact bridge body 111, the extension direction of the boss 112 can be substantially perpendicular to the surface where the contact bridge body 111 is located. The extension direction of the boss 112 is the same as the extension direction of the central axis of the boss 112. The extension direction of the boss 112 is substantially perpendicular to the surface where the contact bridge body 111 is located, which means that the angle between the extension direction of the boss 112 and the surface where the contact bridge body 111 is located is between 85° and 95°. Specifically, in the case where the boss 112 is formed by pressing the contact bridge body 111, when pressing the pressed area, the pressed area can be pressed in a direction substantially perpendicular to the plate surface of the contact bridge body 111, so that the extension direction of the boss 112 is substantially perpendicular to the surface where the contact bridge body 111 is located.
[0056] When the boss 112 is connected to the contact 12, specifically, solder can be injected between the boss 112 and the contact 12, so as to weld the contact 12 to the boss 112 through the solder. When the contact 12 is welded to the boss 112 by the solder, the contact bridge 11 can be connected to the contact 12 based on the welding of the boss 112 and the contact 12. Compared with the prior art in which the contact bridge 11 only includes the contact bridge body 111, and the contact bridge body 111 and the contact 12 are riveted, the solder used in welding will be filled between the boss 112 and the contact 12, fill the gap between the boss 112 and the contact 12, and reliably connect the contact bridge 11 and the contact 12, thereby improving the quality of the contact 1.
[0057] In some embodiments, see Figure 2 and Figure 3 The contact 1 further comprises a welding structure 13. The welding structure 13 is arranged on the surface of the boss 112 close to the contact 12. Alternatively, the welding structure 13 is arranged on the surface of the contact 12 close to the boss 112. Alternatively, the welding structure 13 is arranged on the surface of the boss 112 close to the contact 12 and the surface of the contact 12 close to the boss 112.
[0058] The welding structure 13 is used to increase the welding area between the boss 112 and the contact 12. Specifically, the welding structure 13 is used to increase the area of the surface of the boss 112 close to the contact 12. Alternatively, the welding structure 13 is used to increase the area of the surface of the contact 12 close to the boss 112. Alternatively, the welding structure 13 is used to increase the area of the surface of the boss 112 close to the contact 12, and the area of the surface of the contact 12 close to the boss 112.
[0059] When the area of the surface of the boss 112 close to the contact 12 increases, or the area of the surface of the contact 12 close to the boss 112 increases, or the area of the surface of the protrusion 131 close to the contact 12 and the area of the surface of the contact 12 close to the boss 112 both increase, more solder can be provided between the boss 112 and the contact 12 to ensure a reliable connection between the boss 112 and the contact 12.
[0060] In the above embodiment, the welding structure 13 can be set in various forms. For ease of understanding, the following is combined with Figure 2 and Figure 3 Possible forms of the welding structure 13 are exemplified.
[0061] For some examples, see Figure 2 , the welding structure 13 is configured as a convex strip 131.
[0062] The convex strip 131 can be set to a prismatic structure or a semi-cylindrical structure. Among them, when the convex strip 131 is set to a prismatic structure, the convex strip 131 can be specifically set to a triangular prism, a quadrangular prism or a pentagonal prism, etc., and the embodiment of the present application does not specifically limit this. The convex strip 131 is set to a semi-cylindrical structure, which means that the cross-section of the convex strip 131 is semicircular. When the convex strip 131 is set to a semi-cylindrical structure, the plane on the convex strip 131 opposite to the curved surface can be connected to the boss 112, and the curved surface of the convex strip 131 can be set toward the contact 12.
[0063] In the case where the prismatic convex strip 131 is provided on the boss 112, assuming that one side of the convex strip 131 is connected to the boss 112, then, relative to the case where the convex strip 131 is not provided on the boss 112, the welding surface of the boss 112 and the contact 12 will be converted from the area on the boss 112 connected to the side of the convex strip 131 to the two side surfaces of the convex strip 131 not connected to the boss 112. Since the sum of the areas of the two side surfaces of the convex strip 131 not connected to the boss 112 is greater than the area of the area on the boss 112 connected to the side surface of the convex strip 131, the solder distributed on the two side surfaces of the convex strip 131 not connected to the boss 112 will be more than the solder distributed on the area on the boss 112 connected to the side surface of the convex strip 131, and the solder can connect the boss 112 and the contact 12 more reliably.
[0064] Similarly, when a prismatic protrusion 131 is provided on the contact 12, the solder distributed on the two sides where the protrusion 131 is not connected to the contact 12 will be more than the solder distributed in the area on the contact 12 connected to the side of the protrusion 131, and the solder can connect the boss 112 to the contact 12 more reliably.
[0065] Similarly, when the protrusion 131 is provided on both the boss 112 and the contact 12, the solder distributed on the two side surfaces where the protrusion 131 is not connected to the boss 112 will be more than the solder distributed in the area on the boss 112 connected to the side surfaces of the protrusion 131; and, the solder distributed on the two side surfaces where the protrusion 131 is not connected to the contact 12 will be more than the solder distributed in the area on the contact 12 connected to the side surfaces of the protrusion 131, and the solder can connect the boss 112 and the contact 12 more reliably.
[0066] In the case where the cylindrical convex strip 131 is provided on the boss 112, similar to the case where the prismatic convex strip 131 is provided on the boss 112, the welding surface between the boss 112 and the contact 12 is converted from the plane area on the boss 112 connected to the side of the convex strip 131 to the curved surface where the convex strip 131 is not connected to the boss 112. Since the area of the curved surface where the convex strip 131 is not connected to the boss 112 is larger than the area of the plane area on the boss 112 connected to the side of the convex strip 131, the solder distributed on the curved surface where the convex strip 131 is not connected to the boss 112 is more than the solder distributed on the plane area on the boss 112 connected to the side of the convex strip 131, and the solder can connect the boss 112 to the contact 12 more reliably.
[0067] Similarly, when a cylindrical protrusion 131 is provided on the contact 12, the solder distributed on the curved surface where the protrusion 131 is not connected to the contact 12 will be more than the solder distributed on the planar area on the contact 12 connected to the side of the protrusion 131, and the solder can connect the boss 112 to the contact 12 more reliably.
[0068] Similarly, when a cylindrical protrusion 131 is provided on both the boss 112 and the contact 12, the solder distributed on the curved surface where the protrusion 131 is not connected to the boss 112 will be more than the solder distributed on the planar area on the boss 112 connected to the side of the protrusion 131; and, the solder distributed on the curved surface where the protrusion 131 is not connected to the contact 12 will be more than the solder distributed on the planar area on the contact 12 connected to the side of the protrusion 131, and the solder can connect the boss 112 and the contact 12 more reliably.
[0069] In the above embodiment, the extension directions of the convex strips 131 are substantially parallel. Alternatively, a non-zero angle is provided between the extension directions of the convex strips 131 .
[0070] The extending directions of the convex strips 131 are substantially parallel, which means that the angles between the extending directions of the convex strips 131 are all set between 0° and 5°. The non-zero angles between the convex strips 131 are all set to be not 0°.
[0071] In this example, when the extension directions of the convex strips 131 are substantially parallel, the convex strips 131 can be neatly arranged on the boss 112, and the solder will be located between two adjacent convex strips 131 to connect the convex strips 131 with the contact 12. When a non-zero angle is provided between the extension directions of the convex strips 131, the convex strips 131 can be interlaced on the boss 112, and the solder will be located in the area surrounded by the plurality of convex strips 131 to connect the convex strips 131 with the contact 12.
[0072] For other examples, see Figure 3 , the welding structure 13 is configured as a welding groove 132.
[0073] The welding groove 132 can be configured as a prismatic groove, a cylindrical groove or a hemispherical groove. The embodiment of the present application does not specifically limit the specific shape of the welding groove 132.
[0074] In this example, when the welding groove 132 is provided on the boss 112, or the welding groove 132 is provided on the contact 12, or the welding groove 132 is provided on the boss 112 and the contact 12, the solder will be located not only on the bottom wall of the welding groove 132, but also on the side wall of the welding groove 132. In this way, compared with the solder being located on the plane area of the boss 112 for providing the welding groove 132 and the plane area of the contact 12 for providing the welding groove 132, the area where the solder is provided can be increased, and thus, the welding area between the boss 112 and the contact 12 can be increased, and the reliability of welding between the boss 112 and the contact 12 can be improved.
[0075] In some embodiments, see Figure 4 The contact 1 also includes a positioning structure 14, which includes a matching positioning column 141 and a positioning groove 142, the positioning column 141 is connected to the side of the boss 112 close to the contact 12, and the positioning groove 142 is arranged on the side of the contact 12 facing the boss 112; the positioning column 141 is connected to the side of the boss 112 close to the contact 12; the positioning groove 142 is arranged on the side of the contact 12 facing the boss 112; when the contact 12 is connected to the boss 112, the positioning column 141 can be embedded in the positioning groove 142 to position the contact 12.
[0076] The positioning post 141 can be set to a cylindrical, prism-shaped or truncated cone shape, and the shape of the positioning groove 142 can be set to correspond to the positioning post 141. Specifically, when the positioning post 141 is set to a cylindrical shape, the positioning groove 142 can be set to a cylindrical groove; when the positioning post 141 is set to a prism shape, the positioning groove 142 can be set to a prism-shaped groove; when the positioning post 141 is set to a truncated cone shape, the positioning groove 142 can be set to a truncated cone groove. The specific structural form of the positioning post 141 and the positioning groove 142 is not particularly limited in the embodiment of the present application.
[0077] In this embodiment, during the welding process of the boss 112 and the contact 12, the positioning column 141 can be embedded in the positioning groove 142, and the peripheral wall of the positioning column 141 can abut against the side wall of the positioning groove 142 to prevent the contact 12 from moving on the boss 112 and avoid the misalignment of the contact 12 and the boss 112. Furthermore, on the basis that the contact 12 and the boss 112 are not easily misaligned, the welding quality of the boss 112 and the contact 12 can also be improved.
[0078] In some embodiments, please see Figure 4 The contact 12 includes a contact body 121 and a contact ring 122 . The contact body 121 is connected to the boss 112 , and the contact ring 122 is connected to a side of the contact body 121 facing away from the boss 112 .
[0079] When the contact body 121 is connected to the boss 112, the surface of the contact body 121 facing the boss 112 may be provided with the aforementioned welding structure 13 and / or positioning groove 142, so as to facilitate reliable connection between the contact body 121 and the boss 112. The contact body 121 may be provided as a cylindrical structure, and the top surface or the bottom surface of the contact body 121 may be connected to the boss 112.
[0080] When the contact ring 122 is connected to the contact body 121, it can be integrally connected with the contact body 121. Specifically, the contact body 121 and the contact ring 122 can be integrally formed.
[0081] The contact ring 122 can be configured as a polygonal ring or a circular ring, etc., and the cross-sectional shape of the contact ring 122 can be configured as a semicircular ring or a triangle, etc. When the cross-sectional shape of the contact ring 122 is configured as a triangle, see Figure 4 One of the side edges L of the contact ring 122 can be set to an arc structure, and the arc structure can be set away from the contact body 121 to reduce the probability of the contact ring 122 scratching other contacts or components.
[0082] When the contact 1 of the embodiment of the present application is a moving contact, the contact ring 122 is used to contact with an existing stationary contact. When the contact 1 of the embodiment of the present application is a stationary contact, the contact ring 122 is used to contact with an existing moving contact.
[0083] For example, when the contact 1 of the embodiment of the present application is a moving contact, when the moving contact contacts the existing contact through the contact ring 122, the contact area between the moving contact and the existing static contact will increase, and the contact efficiency will be improved. This is because, when the moving contact is not provided with the contact ring 122, the contact body of the moving contact will contact the contact body of the existing static contact. However, because it is usually difficult to process the plane where the two contact bodies are in contact to an ideal flat state, therefore, in actual contact, the shape of the contact part of the two contact bodies may be a point, that is, the contact mode between the two contacts is point contact. Therefore, the contact area of the two contacts is small.
[0084] Based on this, when the moving contact is provided with the contact ring 122, when the moving contact contacts the existing stationary contact, the contact ring 122 will contact the contact point body of the existing stationary contact. In this way, the shape of the contact part between the moving contact and the existing stationary contact will be a circular line. Since the area of the circular line is greater than the area of the point, when the moving contact is provided with the contact ring 122, the contact area between the moving contact and the existing stationary contact will increase.
[0085] In the above embodiment, one or more contact rings 122 may be provided, and based on the number of contact rings 122 provided, there may be multiple ways of providing the contact rings 122 on the contact body 121. For ease of understanding, the following is an exemplary description of possible ways of providing the contact rings 122 on the contact body 121.
[0086] For some examples, see Figure 4 The contact ring 122 includes a first sub-ring 1221 , and the first sub-ring 1221 is connected to an edge portion and / or a middle portion of the contact body 121 .
[0087] Specifically, when one first sub-ring 1221 is provided, the first sub-ring 1221 may be provided at the edge or the middle of the contact body 121. When multiple first sub-rings 1221 are provided, the multiple first sub-rings 1221 may be distributed at the edge and the middle of the contact body 121.
[0088] The middle portion of the contact body 121 refers to other portions except the edge portions.
[0089] In this example, assuming that contact 1 is a moving contact, then when the first sub-ring 1221 is set at the edge of the contact body 121, the edge of the contact 12 can be in contact with the existing static contact line; when the first sub-ring 1221 is set at the middle of the contact body 121, the middle of the contact 12 can be in contact with the existing static contact line; when the first sub-ring 1221 is set at the edge and middle of the contact body 121, both the edge and middle of the contact 12 can be in contact with the existing static contact line.
[0090] For other examples, see Figure 4 and Figure 5 The contact ring 122 also includes a second sub-ring 1222, and a distance L1 between one end of the first sub-ring 1221 away from the contact body 121 and the contact body 121, and a distance L2 between one end of the second sub-ring 1222 away from the contact body 121 and the contact body 121 are configured to satisfy: L1>L2, or, L1<L2.
[0091] The second sub-ring 1222 may be connected to the contact body 121 or to the first sub-ring 1221, and this embodiment of the present application does not specifically limit this. Figure 4 As shown, when the second sub-ring 1222 is connected to the contact body 121, the projection of the second sub-ring 1222 on the contact body 121 may not overlap with the projection of the first sub-ring 1221 on the contact body 121. Figure 5 As shown, when the second sub-ring 1222 is connected to the first sub-ring 1221 , the second sub-ring 1222 can be connected between an end of the first sub-ring 1221 close to the contact body 121 and an end of the first sub-ring 1221 away from the contact body 121 .
[0092] Assuming that contact 1 in this example is a moving contact, when the moving contact contacts the existing stationary contact, the second sub-ring 1222 and the first sub-ring 1221 can complement each other and contact the existing stationary contact in sequence to ensure the contact area between the moving contact and the existing stationary contact.
[0093] Specifically, when the distance L1 between the end of the first sub-ring 1221 away from the contact body 121 and the contact body 121, and the distance L2 between the end of the second sub-ring 1222 away from the contact body 121 and the contact body 121 are configured to satisfy L1>L2, the first sub-ring 1221 can first contact the existing static contact. When the first sub-ring 1221 is worn to the point where the distance L1 between the end of the first sub-ring 1221 away from the contact body 121 and the contact body 121 is less than or equal to the distance L2 between the end of the second sub-ring 1222 away from the contact body 121 and the contact body 121, the second sub-ring 1222 can replace the first sub-ring 1221 to contact the existing static contact. In other words, the second sub-ring 1222 can serve as a substitute for the first sub-ring 1221 to ensure the contact area between the moving contact and the existing static contact.
[0094] Alternatively, when the distance L1 between the end of the first sub-ring 1221 away from the contact body 121 and the contact body 121, and the distance L2 between the end of the second sub-ring 1222 away from the contact body 121 and the contact body 121 are configured to satisfy L1<L2, the second sub-ring 1222 can first contact the existing static contact. When the second sub-ring 1222 is worn to the point where the distance L2 between the end of the first sub-ring 1221 away from the contact body 121 and the contact body 121 is less than or equal to the distance L1 between the end of the first sub-ring 1221 away from the contact body 121 and the contact body 121, the first sub-ring 1221 can replace the second sub-ring 1222 to contact the existing static contact. In other words, the first sub-ring 1221 can serve as a substitute for the second sub-ring 1222 to ensure the contact area between the moving contact and the existing static contact.
[0095] See also Figure 6 The embodiment of the present application also provides a push button switch, which includes the aforementioned contact 1.
[0096] On the basis that the quality of the contact 1 can be improved, the quality of the push button switch can also be improved.
[0097] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A contact, characterized in that: include: Contacts; and The contact bridge comprises a contact bridge body and a boss, wherein the boss is connected to the contact bridge body and the contact point is connected to the boss.
2. The contact according to claim 1, characterized in that: It also includes welded structures; The welding structure is arranged on the surface of the boss close to the contact point; or, The welding structure is arranged on the surface of the contact point close to the boss; or, The welding structure is arranged on a surface of the boss close to the contact point and a surface of the contact point close to the boss.
3. The contact according to claim 2, characterized in that: The welding structure is configured as a convex strip.
4. The contact according to claim 3, characterized in that: The extension directions of the convex strips are substantially parallel; or, an angle is provided between the extension directions of the convex strips.
5. The contact according to claim 2, characterized in that: The weld structure is configured as a weld groove.
6. The contact according to any one of claims 1 to 5, characterized in that: The contact also includes a positioning structure, which includes a matching positioning column and a positioning groove, the positioning column is connected to a side of the boss close to the contact, and the positioning groove is arranged on a side of the contact facing the boss; When the contact is connected to the boss, the positioning column can be embedded in the positioning groove to position the contact.
7. The contact according to any one of claims 1 to 5, characterized in that: The contact comprises a contact body and a contact ring. The contact body is connected to the boss, and the contact ring is connected to a side of the contact body facing away from the boss.
8. The contact according to claim 7, characterized in that: The contact ring includes a first sub-ring, and the first sub-ring is connected to an edge portion and / or a middle portion of the contact body.
9. The contact according to claim 8, characterized in that: The contact ring further comprises a second sub-ring, A distance L1 between one end of the first sub-ring away from the contact body and the contact body, and a distance L2 between one end of the second sub-ring away from the contact body and the contact body are configured to satisfy: L1>L2, or L1<L2.
10. A push button switch, characterized in that: The push button switch comprises the contact according to any one of claims 1 to 9.