relay

Abstract

The application relates to a relay, comprising a shell, a lead-out piece and a static contact, the shell has a mounting surface, the static contact is exposed to the mounting surface, and the lead-out piece comprises a lead-out end exposed to the mounting surface; wherein the static contact and the lead-out end are exposed to the same mounting surface, and the static contact and the lead-out end can be welded to external electrical elements. The relay of the application can simplify installation and improve installation efficiency, because the lead-out end of the lead-out piece and the static contact are both exposed to the same mounting surface, so that during relay installation, the static contact and the lead-out end can be connected to external circuits by performing a connection operation on one mounting surface of the relay.

Description

Technical Field

[0001] This application relates to the technical field of power switches, and in particular to a relay. Background Technology

[0002] In related technologies, the exposed connection terminals of relays include not only stationary contacts but also various leads, among which the stationary contacts and leads need to be connected to external circuits respectively.

[0003] In related technologies, multiple operations are often required to connect the stationary contact and the lead-out terminal to the external circuit separately. This increases the number of installation steps for the relay and affects its installation efficiency. Utility Model Content

[0004] Therefore, it is necessary to provide a relay that addresses the problem of inconvenient installation in related technologies.

[0005] This application provides a relay comprising:

[0006] A housing having a mounting surface;

[0007] A lead-out member, the lead-out member including a lead-out end exposed on the mounting surface;

[0008] A stationary contact, the stationary contact being exposed on the mounting surface;

[0009] The stationary contact and the lead-out terminal are exposed on the same mounting surface, and the stationary contact and the lead-out terminal can be soldered to external electrical components.

[0010] The aforementioned relay includes a housing, leads, and a stationary contact. The housing has a mounting surface. Since the leads and the stationary contact are both exposed on the same mounting surface, during relay installation, only one mounting surface needs to be used for connection operations such as soldering to connect the stationary contact and leads to the external circuit. Therefore, the relay of this application can simplify installation and improve installation efficiency.

[0011] In one embodiment, the welding surfaces of the lead-out terminal and the stationary contact are configured to be simultaneously surface-mounted with external electrical components.

[0012] In one embodiment, the solder surfaces of the lead-out end and the stationary contact are parallel to each other; the relay includes a plurality of the leads, and the lead-out ends of all the leads protrude from the mounting surface at the same height.

[0013] In one embodiment, the lead-out includes a signal lead-out electrically connected to the stationary contact;

[0014] And / or, the relay further includes a coil, and the lead-out includes a coil lead-out electrically connected to the coil.

[0015] In one embodiment, the relay includes four leads: two signal leads and two coil leads. The leads of the two signal leads and the leads of the two coil leads are located at the four corners of the mounting surface. The relay includes two stationary contacts located at the center of the mounting surface.

[0016] In one embodiment, the relay includes an insulating base, the housing has a built-in cavity, the insulating base is located in the cavity, and the insulating base connects to and wraps at least a portion of the lead-out to enhance the withstand voltage insulation performance of the wrapped portion of the lead-out.

[0017] In one embodiment, the lead-out member and the insulating base are integrally formed;

[0018] Alternatively, the insulating base may have a through hole, through which a portion of the lead-out component passes.

[0019] In one embodiment, the lead-out includes a signal lead-out, the signal lead-out including a contact end located in the housing cavity and electrically connected to the stationary contact.

[0020] In one embodiment, the insulating base is provided with a clearance groove, and the stationary contact passes through the clearance groove.

[0021] In one embodiment, the relay further includes a coil, and the lead-out includes a coil lead-out, one end of which is electrically connected to the coil at the cavity.

[0022] In one embodiment, the relay further includes an insulating cover, with a stationary contact of the relay mounted on top of the insulating cover, one end of the stationary contact located inside the insulating cover, and the other end passing through the insulating base in a way that avoids obstruction.

[0023] In one embodiment, the insulating base includes a main body and a support portion connected together. The main body is connected to and encloses part of the lead-out member. The main body is located above the insulating cover. The support portion is connected to the housing and / or the insulating cover and is located on the outer periphery of the insulating cover.

[0024] In one embodiment, the relay includes two stationary contacts; the mounting surface is provided with an insulating partition, the insulating partition being located between the two stationary contacts. Attached Figure Description

[0025] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is an isometric structural diagram of a relay according to one embodiment.

[0028] Figure 2 This is a cross-sectional structural diagram of a relay according to one embodiment.

[0029] Figure 3 This is a schematic diagram of the housing of a relay according to one embodiment.

[0030] Figure 4 This is a schematic diagram of the internal structure of a relay according to one embodiment.

[0031] Figure 5 This is a schematic diagram of a relay in one embodiment, where the lead-out member and the insulating base are integrated.

[0032] Figure 6 This is an isometric structural diagram of a relay according to another embodiment.

[0033] Explanation of reference numerals in the attached figures:

[0034] 10. Housing; 101. Mounting surface; 10a. Outer shell; 10b. First stiffener; 10c. Second stiffener; 11. Shell wall; 12. Shell cavity; 13. Slot; 14. First assembly space; 15. Second assembly space; 20. Lead-out component; 21. Lead-out end; 22. Bending portion; 221. First sheet; 222. Second sheet; 223. Third sheet; 201. Signal lead-out component; 2011. Contact end; 202. Coil lead-out component; 2021. Electrical terminal; 30. Stationary contact; 31. First conductive component; 311. Socket; 32. Second conductive component; 321 33. Protrusion; 33. Conductive post; 331. Groove; 301. First stationary contact; 302. Second stationary contact; 40. Insulating base; 401. Clearance groove; 41. Main body; 42. Support part; 421. First support plate; 422. Second support plate; 60. Insulating partition; 70. Coil; 71. Wiring part; 701. Coil frame; 80. Insulating cover; 90. Moving contact; 100. Drive assembly; 1001. Push base; 1002. Push rod; 110. Moving iron core; 120. Yoke assembly; 121. Yoke plate; 122. U-shaped yoke; 130. Return spring. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0041] See Figure 1 and Figure 2 As shown, a relay provided in one embodiment of this application includes a housing 10, a lead-out member 20, and a stationary contact 30. The housing 10 has a mounting surface 101. The lead-out member 20 includes a lead-out end 21, which is exposed on the mounting surface 101. The stationary contact 30 and the lead-out end 21 are exposed on the same mounting surface 101, and the stationary contact 30 and the lead-out end 21 can be soldered to external electrical components.

[0042] In the relay of this application embodiment, since the lead-out terminal 21 of the lead-out member 20 and the stationary contact 30 are both exposed on the same mounting surface 101, during the relay installation process, only one mounting surface 101 of the relay needs to be welded or connected to the external circuit. Therefore, the relay of this application can simplify the installation and improve the installation efficiency.

[0043] In some embodiments, when installing the relay, the mounting surface 101 can be oriented towards the external electrical component to be connected, so that the stationary contact 30 and the lead-out terminal 21 on the mounting surface 101 correspond to the external circuit. Therefore, the stationary contact 30 and the lead-out terminal 21 can be electrically connected to the external electrical component by means of welding, plugging, or other methods. Moreover, even if the relay is installed using the welding or plugging methods of the prior art, the relay of this application, since the stationary contact 30 and the lead-out terminal 21 are exposed on the same mounting surface 101, can be electrically connected to the external electrical component in one go. Compared with the related art in which the stationary contact 30 and the lead-out terminal 21 are distributed on different side surfaces of the relay housing 10, the relay of this application simplifies installation and improves installation efficiency.

[0044] In some embodiments, the welding surfaces of the lead-out terminal 21 and the stationary contact 30 are configured to be simultaneously surface-mounted with external electrical components to further improve the installation efficiency of the relay. In the embodiments of this application, simultaneous surface-mount welding means that during the installation of the relay, the entire relay, as the structure to be installed, is electrically connected to the external electrical components in a one-time manner by surface-mount welding of the stationary contact 30 and the lead-out terminal 21.

[0045] In this embodiment, surface-to-surface welding refers to welding two components together by means of surface-to-surface contact to achieve electrical connection. Taking the welding of lead-out terminal 21 to an external electrical component as an example, the end face of lead-out terminal 21 (the side facing away from mounting surface 101) is in surface contact with the surface of the external electrical component, and electrical connection is achieved through welding.

[0046] Furthermore, the welding surfaces of the lead-out terminal 21 and the stationary contact 30 are parallel to each other, facilitating simultaneous surface mounting of the lead-out terminal 21 and the stationary contact 30 to external electrical components. The relay includes multiple leads 20, and the lead-out terminals 21 of all leads 20 protrude from the mounting surface 101 at the same height. Therefore, when connecting the lead-out terminals 21 on the mounting surface 101 of the relay to external electrical components, it is less likely that unevenness in the lead-out terminals 21 will lead to poor contact with the external electrical components.

[0047] It should be noted that a relay, as a switching device that uses a weak electrical signal to control a strong electrical load, can include electrical components such as a coil 70 that receive the weak electrical signal, or electrical components such as a stationary contact 30 and a moving contact 90 that are used to electrically connect to the strong electrical load. Therefore, in the embodiments of this application, the lead-out member 20 can be used to connect the coil 70 or to connect the stationary contact 30.

[0048] Combination Figure 3 As shown, for ease of understanding, the lead-out 20 used to connect the stationary contact 30 is referred to as "signal lead-out 201," and the lead-out 20 used to connect the coil 70 is referred to as "coil lead-out 202." The signal lead-out 201 is used to transmit the high-voltage signal within the stationary contact 30 to the external structure of the relay, thereby sampling the high-voltage signal (i.e., the electrical signal passing through the moving and stationary contacts, and also the electrical signal supplied to the load). The coil lead-out 202 is used to supply power to the coil 70.

[0049] In some embodiments, the relay includes four leads 20: two signal leads 201 and two coil leads 202. The leads 21 of the two signal leads 201 and the leads 21 of the two coil leads 202 are located at the four corners of the mounting surface 101. The relay includes two stationary contacts 30, which are located in the center of the mounting surface 101. Thus, when each lead 21 and stationary contact 30 is connected to an external electrical component, the distance between each lead 21 and the stationary contact 30 is large, achieving good electrical isolation performance.

[0050] It should be noted that, in combination Figure 2 and Figure 4 As shown, the housing 10 has a cavity 12 inside. Specifically, the housing wall 11 of the housing 10 surrounds and forms the cavity 12.

[0051] Because the stationary contact 30 and the lead-out terminal 21 of the relay are exposed on the same mounting surface 101, the lead-out member 20 and the stationary contact 30 will pass through the cavity 12 near the mounting surface 101. This may lead to insufficient creepage distance between the lead-out member 20 and the stationary contact 30 in the portion of the cavity 12 near the mounting surface 101. In some embodiments of this application, the relay includes an insulating base 40 located in the cavity 12. The insulating base 40 connects to and wraps at least a portion of the lead-out member 20 to enhance the withstand voltage insulation performance of the wrapped portion of the lead-out member 20, thereby improving the reliability of the relay. By providing the insulating base 40, the aforementioned problem of insufficient creepage distance between the lead-out member 20 and the stationary contact 30 in the portion of the cavity 12 near the mounting surface 101 can be effectively solved.

[0052] As mentioned above, lead-out 20 can be either signal lead-out 201 or coil lead-out 202. Therefore, the portion of lead-out 20 enclosed by insulating base 40 can be at least one of signal lead-out 201 and coil lead-out 202. For example, in some embodiments, insulating base 40 may only connect to and enclose a portion of the structure of signal lead-out 201; or, insulating base 40 may only connect to and enclose a portion of the structure of coil lead-out 202. In other embodiments, both signal lead-out 201 and coil lead-out 202 are connected to insulating base 40, insulating base 40 encloses a portion of the structure of signal lead-out 201, and insulating base 40 includes a portion of the structure of coil lead-out 202.

[0053] Of course, the lead-out part 20 enclosed by the insulating base 40 can also be other electrical components besides the signal lead-out part 201 and the coil lead-out part 202. The type of lead-out part 20 is not limited here.

[0054] Because the insulating base 40 connects to and partially encloses the lead-out member 20, the insulating base 40 and the lead-out member 20 are connected as a single unit. Thus, when the insulating base 40 is installed into the cavity 12 of the housing 10, the lead-out member 20 can be assembled into the housing 10 along with the insulating base 40. Therefore, the insulating base 40 can serve as a mounting carrier for the lead-out member 20, effectively securing it and preventing it from becoming loose, thereby improving the reliability of the relay. For example, in a car battery pack, the insulating base 40's securing effect on the lead-out member 20 prevents it from accidentally contacting other electrical components in the relay due to vibration, thus reducing the likelihood of relay malfunction and improving relay reliability.

[0055] It should be noted that in this embodiment, when the insulating base 40 is installed in the cavity 12 of the housing 10, the lead-out end 21 is exposed on the outer surface of the housing 10, thereby satisfying the need for the relay to be electrically connected to external electrical components through the lead-out end 21.

[0056] There are multiple implementations for the connection between the lead-out member 20 and the insulating base 40.

[0057] For example, in some embodiments, the lead-out member 20 and the insulating base 40 are integrally formed. In this way, a stable connection can be achieved between the lead-out member 20 and the insulating base 40 without the need for other connecting structures. Furthermore, this integrally formed structure simplifies manufacturing.

[0058] It should be noted that the insulating base 40 can be integrally molded with the lead-out component 20 via injection molding. This structural design facilitates the use of the insulating base 40 to wrap around a portion of the lead-out component 20, thereby enhancing the withstand voltage insulation performance of the wrapped portion of the lead-out component 20 and improving the reliability of the relay.

[0059] Other methods can also be used to fix the lead-out part 20 and the insulating base 40.

[0060] For example, in some embodiments, the insulating base 40 is provided with a through hole, through which a portion of the lead-out member 20 passes. In this embodiment, since a portion of the lead-out member 20 passes through the through hole, the inner wall of the insulating base 40 corresponding to the through hole will cover a portion of the lead-out member 20, thereby providing insulation protection for the lead-out member 20, improving electrical isolation performance, and thus enhancing the reliability of the relay.

[0061] For example, in some embodiments, the insulating base 40 includes a first base body and a second base body. The first base body and the second base body are connected, such that a portion of the lead-out member 20 is sandwiched between the first base body and the second base body. Because a portion of the lead-out member 20 is sandwiched between the first base body and the second base body, the lead-out member 20 is less likely to become loose; moreover, with this structural arrangement, the portion of the lead-out member 20 sandwiched between the first base body and the second base body is enclosed by the first base body and the second base body, thereby increasing the creepage distance between the lead-out members 20. Therefore, the lead-out member 20 is less likely to have poor electrical isolation from other lead-out members 20, thereby improving the reliability of the relay. It should be noted that the first base body and the second base body can be connected by a snap-fit ​​connection, or by adhesive or heat fusion connection.

[0062] The connection method between the lead-out member 20 and the insulating base 40 is not limited here. As long as the lead-out member 20 is connected to the insulating base 40, the insulating base 40 can be used to wrap part of the structure of the lead-out member 20.

[0063] Combination Figures 2 to 4 As shown, the housing 10 is provided with a slot 13 that extends to the mounting surface 101. The lead-out member 20 engages with the slot 13, so that the lead-out end 21 is exposed on the mounting surface 101.

[0064] In this embodiment, the stability of the lead-out piece is improved because the lead-out piece 20 engages with the slot 13. Thus, when the lead-out end 21 of the lead-out piece is connected to an external electrical component, the position of the lead-out end 21 can remain stable relative to the housing 10, thereby improving connection stability.

[0065] It should be noted that the mounting surface 101 of the housing 10 is not limited to engaging with the lead-out member 20 via a slot 13. In some embodiments, the lead-out member 20 may also be inserted into the housing 10. For example, the mounting surface 101 of the housing 10 may have an insertion hole 311, and the lead-out member 20 may be inserted into the insertion hole 311, thus exposing a portion of the structure of the lead-out member 20 from the insertion hole 311 onto the mounting surface 101 to form a lead-out end 21.

[0066] In some embodiments, the insulating base 40 can be plugged into or snapped into the housing 10. For example, the sidewalls of the housing 10 and the sidewalls of the insulating base 40 are provided with corresponding protrusions or grooves 13. The mating of the corresponding protrusions and grooves 13 facilitates the assembly of the insulating base 40 into the housing 10, improving assembly convenience. The extending direction of the protrusions and grooves 13 can be parallel to the mounting surface 101. The mating direction of the lead-out piece 20 with the groove 13 is parallel to the mounting surface 101, and the mating direction of the lead-out piece 20 relative to the housing 10 is consistent with the mating direction of the insulating base 40 relative to the housing 10. Therefore, when the insulating base 40 is assembled into the housing 10 in a direction parallel to the mounting surface 101, the lead-out piece can mate with the corresponding groove 13.

[0067] Combination Figure 2 and Figure 3 As shown, in some embodiments, the lead-out member 20 includes a bend 22 that is exposed outside the insulating base 40 so as to engage with the housing 10.

[0068] It should be noted that when the bent portion 22 is engaged with the housing 10, part of the structure of the bent portion 22 is exposed on the mounting surface 101. Thus, the part of the bent portion 22 exposed from the mounting surface 101 can serve as a lead-out end 21 to meet the needs of electrical connection with external electrical components.

[0069] The bending portion 22 includes a first piece 221, a second piece 222, and a third piece 223. The first piece 221 and the third piece 223 are connected to both ends of the second piece 222 and are bent toward the same side relative to the second piece 222. The housing 10 is provided with slots 13 corresponding to the positions of the first piece 221 and the third piece 223. The first piece 221 and the third piece 223 are respectively engaged with the corresponding slots 13, so that the second piece 222 is exposed on the mounting surface 101 to form a lead-out end 21. In this embodiment, since the first piece 221 and the third piece 223 are respectively engaged with the corresponding slots 13 on the housing 10, the second piece 222 connected between the first piece 221 and the third piece 223 is not easy to loosen relative to the housing 10.

[0070] Since the second piece 222 is exposed on the mounting surface 101 to form the lead-out terminal 21, in this embodiment, the lead-out terminal 21 is not easy to become loose relative to the housing 10, so that when the relay is connected to an external electrical component through the lead-out terminal 21, the lead-out terminal 21 can remain stable, thereby improving the connection reliability.

[0071] It should be noted that the lead-out terminal 21 can be electrically connected to an external electrical component through abutment contact, or it can be mechanically and electrically connected to an external electrical component through welding. Regardless of the method used to achieve the electrical connection between the lead-out terminal 21 and the external electrical component, the above-described embodiment, by engaging the lead-out member 20 with the housing 10, helps maintain the assembly stability between the lead-out terminal 21 and the housing 10, thereby improving the reliability of the electrical connection between the lead-out terminal 21 and the external electrical component.

[0072] The number of leads 20 can be configured according to the number of connection points required for electrical connection between the internal electrical components of the relay and external electrical components. For example, in some embodiments, the number of leads 20 is at least two. In this way, the internal electrical components of the relay can be electrically connected to external electrical components through these leads 20. The number of leads 20 can be one, two, or more, and is not limited here.

[0073] Understandably, in embodiments where the lead-out member 20 includes a coil lead-out member 202, the coil lead-out member 202 is electrically connected to the coil 70 at one end of the housing 12.

[0074] Combination Figure 3 As shown, the two ends of the coil 70 can be connected to the wiring portion 71, and the coil lead 202 is provided with the corresponding power terminal 2021 provided with the wiring portion 71. The power terminal 2021 is electrically connected to the wiring portion 71, thereby realizing the electrical connection between the coil lead 202 and the coil 70.

[0075] It should be noted that there can be two coil leads 202, which are connected to the two ends of the coil 70 respectively. There can also be two signal leads 201, which are connected to the two stationary contacts 30 of the relay respectively.

[0076] In some embodiments, the signal lead-out 201 includes a contact end 2011 located in the housing 12 and electrically connected directly or indirectly to the stationary contact 30 of the relay. In this embodiment, an insulating base 40 connects to and encloses part of the signal lead-out 201, thereby fixing the signal lead-out 201 and increasing the creepage path between the signal lead-out 201 and other electrical components, thus improving electrical isolation performance and enhancing relay reliability.

[0077] Combination Figure 3 and Figure 5 As shown, the insulating base 40 is provided with a clearance groove 401, and the stationary contact 30 passes through the clearance groove 401. Therefore, the insulating base 40 and the stationary contact 30 will not interfere with each other in the cavity 12 of the housing 10, and it is beneficial to maintain a tight assembly between the insulating base 40 and the stationary contact 30, avoiding the superposition of the thickness of the insulating base 40 and the stationary contact 30. Therefore, this structural design is conducive to the miniaturization of the relay.

[0078] Furthermore, since the stationary contact 30 passes through the recess 401, the stationary contact 30 can be exposed from the recess 401 to facilitate the electrical connection between the signal lead-out member 201 and the stationary contact 30.

[0079] For example, in some embodiments, at least a portion of the contact end 2011 of the signal lead-out member 201 is disposed within the clearance groove 401, and the contact end 2011 is in direct or indirect electrical contact with the stationary contact 30 within the clearance groove 401.

[0080] In the above embodiments, direct electrical contact refers to the electrical connection between two structural components through direct contact. For example, contact end 2011 directly contacts stationary contact 30 to achieve an electrical connection between them. Indirect electrical contact refers to the electrical connection between two indirect components through indirect contact. For example, a relay includes an electrical connector that is connected to stationary contact 30, and contact end 2011 contacts the electrical connector. Thus, the electrical connector is used to electrically connect stationary contact 30 and contact end 2011, thereby achieving indirect electrical contact between contact end 2011 and stationary contact 30.

[0081] See again Figure 2 As shown, in some embodiments, the relay further includes an insulating cover 80, with the stationary contact 30 of the relay mounted on the top of the insulating cover 80. One end of the stationary contact 30 is located inside the insulating cover 80, and the other end passes through the insulating base 40 in a way that avoids direct contact. Thus, part of the structure of the stationary contact 30 can be exposed from the insulating base 40 to facilitate electrical connection with electrical components such as signal lead-out member 201.

[0082] It should be noted that the stationary contact 30 can be a single structural component or a combination of multiple structural components.

[0083] In some implementations, continue to combine Figure 2 As shown, the stationary contact 30 includes a first conductive element 31 and a second conductive element 32. The first conductive element 31 passes through the insulating cover 80, and the second conductive element 32 passes through the housing 10 and is exposed on the mounting surface 101.

[0084] The first conductive element 31 can be installed together with the insulating cover 80 into the cavity 12 of the housing 10 to be directly or indirectly electrically connected to the second conductive element 32.

[0085] In this embodiment, since the stationary contact 30 includes a first conductive element 31 and a second conductive element 32, the first conductive element 31 and the second conductive element 32 can be respectively installed in the insulating cover 80 and the housing 10 to improve the ease of relay assembly. Since the first conductive element 31 is directly or indirectly electrically connected to the second conductive element 32 when installed together with the insulating cover 80 into the cavity 12 of the housing 10, the electrical connection between the stationary contact 30 and the external circuit is ensured.

[0086] In some embodiments, the first conductive element 31 is welded to the insulating cover 80.

[0087] The second conductive element 32 is integrally formed with the housing 10. The housing 10 may be a partial structure that wraps around the second conductive element 32 during the injection molding process, thereby making the housing 10 and the second conductive element integrally connected.

[0088] In some embodiments, the first conductive element 31 and the second conductive element 32 can be electrically connected to each other by direct contact.

[0089] In another embodiment, the first conductive element 31 and the second conductive element 32 can be electrically connected through an intermediate connector. For example, the first conductive element 31 is provided with a socket 311 for inserting a conductive post 33, and the second conductive element 32 cooperates with the conductive post 33, and the second conductive element 32 is electrically connected to the first conductive element 31 through the conductive post 33.

[0090] The engagement between the conductive post 33 and the second conductive element 32 can be either a plug-in engagement or a threaded engagement.

[0091] Continue to combine Figure 2 As shown, in some embodiments, the end of the conductive post 33 furthest from the first conductive element 31 is provided with a groove 331, and the end of the second conductive element 32 near the first conductive element 31 is provided with a protrusion 321, with the protrusion 321 engaging with the groove 331. This engagement of the protrusion 321 and the groove 331 not only improves the stability of the conductive post 33 between the first conductive element 31 and the second conductive element 32, making it less prone to loosening and causing poor electrical contact, but also provides sufficient contact area between the conductive post 33 and the second conductive element 32, thereby reducing contact resistance and decreasing the likelihood of overheating at the stationary contact 30 during relay operation.

[0092] Combination Figure 2 and Figure 5As shown, in some embodiments, the insulating base 40 includes a main body 41 and a support 42 connected together. The main body 41 connects to and encloses part of the lead-out member 20, and is located above the insulating cover 80. In this embodiment, one end of the stationary contact 30, located outside the insulating cover 80, passes through the main body 41 in a way that avoids direct contact with electrical components such as the signal lead-out member 201. Furthermore, a clearance groove 401 extends through the main body 41, allowing the stationary contact 30 to pass through the main body 41 from the clearance groove 401.

[0093] The support portion 42 is connected to the housing 10 and / or the insulating cover 80, and the support portion 42 is located on the outer periphery of the insulating cover 80. In this way, the support portion 42 can utilize the installation space on the outer periphery of the insulating cover 80 without interfering with the insulating cover 80. Since the support portion 42 is connected to at least one of the housing 10 and the insulating cover 80, a stable connection is achieved between the insulating base 40 and the housing 10.

[0094] It should be noted that the support portion 42 can be directly or indirectly connected to at least one of the housing 10 and the insulating cover 80. Taking the support portion 42 being connected to the housing 10 as an example, the support portion 42 can be directly engaged with the housing 10 through a connection structure such as a snap-fit ​​or screw. In some embodiments, the support portion 42 can also be indirectly connected to the housing 10 through other structures. For example, the support portion 42 is connected to at least one lead-out member 20, and the support portion 42 is connected to the housing 10 through the lead-out member 20 connected to it, thereby achieving an indirect connection between the support portion 42 and the housing 10. For the support portion 42, whether it is directly or indirectly connected to at least one of the housing 10 and the insulating cover 80, as long as the position of the support portion 42 within the cavity 12 of the housing 10 is fixed to limit and support the main body portion 41, the installation stability of the insulating base 40 within the cavity 12 can be maintained, thereby further improving the reliability of the relay.

[0095] Furthermore, the support portion 42 includes a first support plate 421 and a second support plate 422, which are spaced apart from each other. At least a portion of the structure of the insulating cover 80 is located between the first support plate 421 and the second support plate 422. Thus, the insulating cover 80 does not interfere with the first support plate 421 and the second support plate 422, and the first support plate 421 and the second support plate 422 can limit and support both sides of the main body portion 41, thereby improving the stability of the insulating seat 40 within the cavity 12 of the housing 10.

[0096] Combination Figure 2 and Figure 4As shown, the housing 10 includes an outer shell 10a, a first stiffener 10b, and a second stiffener 10c connected to each other. Both the first stiffener 10b and the second stiffener 10c are located within the outer shell 10a and are respectively disposed on both sides of the insulating cover 80. A first assembly space 14 is formed between the first stiffener 10b and the inner wall of the outer shell 10a, and a second assembly space 15 is formed between the second stiffener 10c and the inner wall of the outer shell 10a. In this embodiment, at least a portion of the structure of the first support plate 421 is installed in the first assembly space 14, thereby achieving stable installation of the first support plate 421. At least a portion of the structure of the second support plate 422 is installed in the second assembly space 15, thereby achieving stable installation of the second support plate 422. In this embodiment, the first stiffener 10b and the second stiffener 10c separate the first assembly space 14 and the second assembly space 15 within the outer shell 10a to stably clamp the first support plate 421 and the second support plate 422, thereby improving the installation stability of the insulating base 40. The first stiffener 10b and the second stiffener 10c can be integrally formed on the outer shell 10a, or they can be connected to the outer shell 10a by means of snap-fit ​​or hot-melt connection.

[0097] Combination Figure 6 As shown, in an embodiment where the relay includes two stationary contacts 30, an insulating partition 60 is provided on the mounting surface 101, and the insulating partition 60 is located between the two stationary contacts 30. Thus, the insulating partition 60 increases the creepage distance between the two stationary contacts 30, thereby increasing the withstand voltage insulation performance of the stationary contacts 30 and further improving the reliability of the relay.

[0098] It should be noted that the parts of the relay not covered can be the same as or can be implemented using existing technology, and are not limited here.

[0099] Continue to combine Figure 2 As shown, the relay also includes a moving contact 90 and a drive assembly 100. An insulating cover 80 is disposed within the cavity 12 of the housing 10, a stationary contact 30 is mounted on the insulating cover 80, and the moving contact 90 is disposed within the insulating cover 80. The drive assembly 100 is connected to the moving contact 90 and is used to drive the moving contact 90 to move relative to the stationary contact 30, causing the moving contact 90 to contact or separate from the stationary contact 30. When the moving contact 90 contacts the stationary contact 30, the moving contact 90 is electrically connected to the contacting stationary contact 30; correspondingly, when the moving contact 90 separates from the stationary contact 30, the moving contact 90 disconnects the electrical connection with the stationary contact 30.

[0100] There can be two stationary contacts 30, namely a first stationary contact 301 and a second stationary contact 302. The two ends of the moving contact 90 correspond to the two stationary contacts 30 (i.e., the first stationary contact 301 and the second stationary contact 302). The moving contact 90 can move closer to or further away from the two stationary contacts 30 under the action of the driving assembly 100. When the moving contact 90 approaches and contacts the two stationary contacts 30, that is, when the moving contact 90 contacts the first stationary contact 301 and the second stationary contact 302, the first stationary contact 301 is electrically connected to the second stationary contact 302 through the moving contact 90. Correspondingly, when the moving contact 90 separates from the two stationary contacts 30, the moving contact 90 disconnects the electrical connection between the first stationary contact 301 and the second stationary contact 302.

[0101] The number of stationary contacts 30 can also be more than two; there is no limit to the number of stationary contacts 30 here.

[0102] For example, in some implementations, it is combined again. Figure 2 As shown, the drive assembly 100 includes a push base 1001 and a push rod 1002 connected to each other. A moving contact 90 is disposed on the push base 1001. The push rod 1002 is used to move the push base 1001 closer to or away from the stationary contact 30, so that the moving contact 90 on the push base 1001 comes into contact with or separates from the stationary contact 30, thereby achieving the purpose of electrically connecting or disconnecting the moving contact 90 from the stationary contact 30, so as to meet the need to connect or disconnect the automatic control circuit connected to the relay.

[0103] It should be noted that the moving contact 90 and the push base 1001 can be connected indirectly or directly, and no limitation is made here.

[0104] Combination Figure 2 As shown, the relay also includes a moving iron core 110 and a yoke assembly 120. The yoke assembly 120 may include a yoke plate 121 and a U-shaped yoke 122. The yoke plate 121 is connected to both ends of the U-shaped yoke 122 to enclose and form a mounting space. The relay coil 70 is located within this mounting space. In this embodiment, the push base 1001 is located on the side of the yoke plate 121 facing away from the moving iron core 110. The end of the push rod 1002 away from the moving contact 90 passes through the yoke plate 121 and is connected to the moving iron core 110.

[0105] The moving contact 90 and the push base 1001 are connected, and both are housed within the insulating cover 80. The yoke plate 121 has a through hole through which the push rod 1002 can pass. Specifically, one end of the push rod 1002 is connected to the push base 1001, and the other end passes through the through hole into the yoke plate 121 to connect with the moving iron core 110. In this embodiment, the push rod 1002 passes through the through hole in the yoke plate 121, and the push base 1001 and the moving iron core 110, which are connected to both ends of the push rod 1002, are located on both sides of the yoke plate 121. Thus, the push rod 1002 can transmit the power of the moving iron core 110 to the push base 1001, causing the push base 1001, with the moving contact 90, to contact or separate from the two stationary contacts 30.

[0106] In some embodiments, the relay includes a coil frame 701, on which a coil 70 is wound. The coil 70 generates an electromagnetic field when energized. The coil frame 701 has a mounting hole, in which a moving iron core 110 is disposed and connected to the end of the push rod 1002 away from the push seat 1001. In the electromagnetic field generated by the energized coil 70, the moving iron core 110 is attracted to the yoke plate 121, thereby enabling the moving iron core 110 to move within the mounting hole in a direction close to the yoke plate 121. Consequently, the moving iron core 110, via the push rod 1002, drives the push seat 1001 closer to the stationary contact 30, thereby bringing the moving contact 90 into contact with the stationary contact 30.

[0107] Continue reading Figure 2 As shown, in some embodiments, the relay further includes a reset spring 130, which is disposed between the yoke plate 121 and the moving iron core 110.

[0108] In this embodiment, when the coil 70 is energized, the moving iron core 110 attracts the yoke plate 121 in the electromagnetic field generated by the coil 70, thereby overcoming the elastic force of the return spring 130 and moving towards the yoke plate 121. In this way, the push rod 1002 drives the push seat 1001 to move towards the stationary contact 30, causing the moving contact 90 on the push seat 1001 to contact the two stationary contacts 30, thus establishing an electrical connection between the two stationary contacts 30 using the moving contact 90.

[0109] When the coil 70 is de-energized, the moving iron core 110 moves away from the yoke plate 121 under the drive of the return spring 130. In this way, the moving iron core 110 moves the push seat 1001 away from the stationary contact 30 via the push rod 1002, so that the moving contact 90 is separated from the two stationary contacts 30, thereby breaking the electrical contact.

[0110] Thus, the opening and closing of the relay can be controlled by energizing the coil 70, so as to enable the relay to conduct or disconnect the automatic control circuit it is connected to. In other words, the relay plays the role of a "switch" in the automatic control circuit.

[0111] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0112] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A relay characterized by comprising: include: The housing (10) has a mounting surface (101). Lead-out member (20), the lead-out member (20) includes a lead-out end (21) exposed on the mounting surface (101); A stationary contact (30) is exposed on the mounting surface (101). The stationary contact (30) and the lead-out end are exposed on the same mounting surface (101), and the stationary contact (30) and the lead-out end (21) can be soldered to external electrical components.

2. The relay according to claim 1, characterized in that, The welding surfaces of the lead-out end (21) and the stationary contact (30) are configured to be able to be simultaneously surface-mounted with external electrical components.

3. The relay according to claim 2, characterized in that The welding surfaces of the lead-out end (21) and the stationary contact (30) are parallel to each other; the relay includes a plurality of the lead-out members (20), and the lead-out ends (21) of all the lead-out members (20) protrude from the mounting surface (101) at the same height.

4. The relay of claim 1, wherein The lead-out member (20) includes a signal lead-out member (201), which is electrically connected to the stationary contact (30). And / or, the relay further includes a coil (70), and the lead (20) includes a coil lead (202) electrically connected to the coil (70).

5. The relay of claim 1, wherein The relay includes four leads (20), namely two signal leads (201) and two coil leads (202). The leads (21) of the two signal leads (201) and the leads (21) of the two coil leads (202) are located at the four corners of the mounting surface (101). The relay includes two stationary contacts (30), which are located in the middle of the mounting surface (101).

6. The relay according to claim 1, characterized in that, The relay includes an insulating base (40), the housing (10) has a cavity (12) inside, the insulating base (40) is located in the cavity (12), and the insulating base (40) connects to and wraps at least part of the lead (20) to enhance the pressure resistance insulation performance of the wrapped part of the lead (20).

7. The relay according to claim 6, characterized in that The lead-out member (20) and the insulating base (40) are integrally formed; Alternatively, the insulating base (40) may be provided with a perforation, through which a portion of the lead-out member (20) passes.

8. The relay of claim 6, wherein The lead-out member (20) includes a signal lead-out member (201), which includes a contact end (2011) located in the cavity (12) and electrically connected to the stationary contact (30).

9. The relay according to claim 8, characterized in that, The insulating base (40) is provided with a clearance groove (401), and the stationary contact (30) passes through the clearance groove (401).

10. The relay according to claim 6, characterized in that, The relay also includes a coil (70), and the lead-out member (20) includes a coil lead-out member (202), one end of which is electrically connected to the coil (70) in the cavity (12).

11. The relay of claim 6, wherein The relay also includes an insulating cover (80), the stationary contact (30) of the relay is mounted on the top of the insulating cover (80), and one end of the stationary contact (30) is located inside the insulating cover (80), while the other end passes through the insulating base (40) in a way that avoids obstruction.

12. The relay of claim 11, wherein, The insulating base (40) includes a main body (41) and a support (42) connected to each other. The main body (41) is connected to and covers part of the lead-out member (20). The main body (41) is located above the insulating cover (80). The support (42) is connected to the housing (10) and / or the insulating cover (80). The support (42) is located on the outer periphery of the insulating cover (80).

13. The relay according to any one of claims 1-12, characterized in that, The relay includes two stationary contacts (30); the mounting surface (101) is provided with an insulating partition (60) located between the two stationary contacts (30).

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