relay

Abstract

The application relates to a relay, which comprises a shell, an outgoing piece and an insulating base, the shell is internally provided with a shell cavity, the outgoing piece comprises an outgoing end which is exposed to the outer surface of the shell, the insulating base is located in the shell cavity and is connected with and wraps part of the outgoing piece. The relay of the application connects and wraps part of the outgoing piece by the insulating base, so that the voltage insulation performance of the wrapped part of the outgoing piece is enhanced, and the reliability of the relay is improved; and the insulating base can fix the outgoing piece, so that the probability of loosening of the outgoing piece is reduced, and the reliability of the relay is further improved.

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, relays typically require leads to electrically connect the internal coil and other structures to leads on the outer surface of the housing, so that the leads can be electrically connected to external electrical components, thereby meeting the control needs of the relay in the corresponding circuit.

[0003] With the miniaturization and diversification of relay functions, the design of the leads has become increasingly challenging. Because the housing cavity (the space enclosed by the housing walls) provides limited space for leads, their placement within the cavity can lead to issues such as insufficient electrical clearance and creepage distance. These problems can affect the relay's withstand voltage and insulation performance, thus impacting its reliability. Utility Model Content

[0004] Therefore, it is necessary to provide a relay that addresses the issue of how to improve the reliability of relays.

[0005] This application provides a relay comprising:

[0006] The shell, which contains a shell cavity;

[0007] A lead-out component, the lead-out component including a lead-out end exposed on the outer surface of the housing;

[0008] An insulating base is located in the housing cavity and connects to and encloses part of the lead-out member.

[0009] The aforementioned relay includes a housing, leads, and an insulating base. The insulating base is located in the cavity of the housing and connects to and wraps a portion of the leads to enhance the withstand voltage insulation performance of the wrapped portion of the leads, thereby improving the reliability of the relay. Furthermore, the insulating base can also fix the leads in place, reducing the probability of the leads becoming loose and further improving the reliability of the relay.

[0010] In one embodiment, the lead-out member and the insulating base are integrally formed;

[0011] Alternatively, the insulating base may have a through hole, through which a portion of the lead-out component passes.

[0012] In one embodiment, the insulating base includes a first base body and a second base body, which are connected such that a portion of the lead-out member is sandwiched between the first base body and the second base body.

[0013] In one embodiment, the outer surface of the housing includes a mounting surface, the housing is provided with a slot that extends to the mounting surface, the lead-out member engages with the slot, and the lead-out end is exposed on the mounting surface.

[0014] In one embodiment, the lead-out member includes a bending portion, the bending portion including a first piece, a second piece and a third piece, the first piece and the third piece being connected to both ends of the second piece, and both being bent toward the same side relative to the second piece;

[0015] The housing is provided with slots corresponding to the positions of the first piece and the third piece. The first piece and the third piece are respectively engaged with the corresponding slots, so that the second piece is exposed on the mounting surface to form the lead-out end.

[0016] In one embodiment, the number of leads is at least two, and the lead ends of all leads protrude from the mounting surface at the same height.

[0017] 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, and the four leads can be connected to the outside by surface welding.

[0018] In one embodiment, the lead-out includes a signal lead-out, the signal lead-out including a contact end located in the housing and electrically connected directly or indirectly to the stationary contact of the relay.

[0019] In one embodiment, the insulating base is provided with a clearance groove, and the stationary contact passes through the clearance groove.

[0020] In one embodiment, at least a portion of the structure of the contact end is disposed within the clearance groove, and the contact end is in direct or indirect electrical contact with the stationary contact within 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 support includes a first support plate and a second support plate, which are spaced apart from each other, and at least a portion of the structure of the insulating cover is located between the first support plate and the second support plate.

[0025] In one embodiment, the housing includes a connected outer shell, a first stiffener, and a second stiffener, both of which are located inside the outer shell and are respectively disposed on both sides of the insulating cover;

[0026] Wherein, a first assembly space is formed between the first stiffener and the inner wall of the outer shell, at least a portion of the structure of the first support plate is installed in the first assembly space, a second assembly space is formed between the second stiffener and the inner wall of the outer shell, and at least a portion of the structure of the second support plate is installed in the second assembly space. Attached Figure Description

[0027] 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.

[0028] 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.

[0029] Figure 1 This is an isometric structural diagram of a relay according to one embodiment.

[0030] Figure 2 This is a cross-sectional structural diagram of a relay according to one embodiment.

[0031] Figure 3 This is a schematic diagram of the internal structure of a relay according to one embodiment.

[0032] Figure 4 for Figure 3 The diagram shows an exploded view of part of the relay structure.

[0033] Figure 5This is a schematic diagram of a relay in one embodiment, where the lead-out member and the insulating base are integrated.

[0034] Figure 6 This is a schematic diagram of the internal structure of a relay according to another embodiment.

[0035] Figure 7 This is a cross-sectional structural diagram of a relay according to another embodiment.

[0036] Figure 8 for Figure 7 The diagram shows a cross-sectional view of the relay at line II.

[0037] Figure 9 This is a schematic diagram of the structure when the electrical connector of the relay is assembled into the housing.

[0038] Explanation of reference numerals in the attached figures:

[0039] 10. Housing; 101. Mounting surface; 102. Connecting 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 part; 221. First piece; 222. Second piece; 223. Third piece; 201. Signal lead-out component; 2011. Contact end; 202. Coil lead-out component; 2021. Electrical terminal; 30. Insulating base; 301. Avoidance 31. Empty slot; 32. Main body; 32. Support part; 321. First support plate; 322. Second support plate; 40. Stationary contact; 41. First stationary contact; 42. Second stationary contact; 50. Load connection end; 60. Electrical connector; 70. Coil; 71. Wiring part; 701. Coil frame; 80. Insulating cover; 90. Moving contact; 100. Drive assembly; 1001. Push seat; 1002. Push rod; 110. Moving iron core; 120. Yoke assembly; 121. Yoke plate; 122. U-shaped yoke; 130. Return spring. Detailed Implementation

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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 an insulating base 30. The housing 10 has a cavity 12 inside, that is, the housing wall 11 of the housing 10 surrounds and forms the cavity 12.

[0047] The lead-out component 20 includes a lead-out terminal 21, which is exposed on the outer surface of the housing 10 so that the relay can be connected to an external circuit via the lead-out terminal 21.

[0048] 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 40 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 40.

[0049] Combination Figure 3 and Figure 4 As shown, for ease of understanding, the lead-out 20 used to connect the stationary contact 40 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 40 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.

[0050] The inventors discovered that in related technologies, relays are prone to problems such as poor withstand voltage insulation performance due to insufficient electrical clearance or creepage distance of the leads. For example, the portions of the signal lead 201 and the coil lead 202 within the cavity 12 of the housing 10 are easily too close together, causing electrical continuity between them and affecting the reliability of the relay. As another example, the terminals of the signal lead 201 and the coil 70 are easily too close together, causing electrical continuity between them. Furthermore, the stationary contact 40 and the coil lead 202 are easily too close together, causing electrical continuity between them.

[0051] In this embodiment, since the relay includes an insulating base 30, the insulating base 30 can be used to enhance the withstand voltage insulation performance of the lead-out. Specifically, the insulating base 30 is located in the housing cavity 12, and the insulating base 30 connects to and wraps a portion of the lead-out 20 to enhance the withstand voltage insulation performance of the wrapped portion of the lead-out 20, thereby improving the reliability of the relay.

[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 30 can be at least one of signal lead-out 201 and coil lead-out 202. For example, in some embodiments, insulating base 30 may only connect to and enclose a portion of the structure of signal lead-out 201; or, insulating base 30 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 30, with insulating base 30 enclosing a portion of the structure of signal lead-out 201 and a portion of the structure of coil lead-out 202.

[0053] Of course, the lead-out part 20 enclosed by the insulating base 30 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 30 connects to and partially encloses the lead-out member 20, the insulating base 30 and the lead-out member 20 are connected as a single unit. Thus, when the insulating base 30 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 30. Therefore, the insulating base 30 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 30'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 30 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 30.

[0057] For example, in some embodiments, the lead-out member 20 and the insulating base 30 are integrally formed. In this way, a stable connection can be achieved between the lead-out member 20 and the insulating base 30 without the need for other connecting structures. Furthermore, this integrally formed structure simplifies manufacturing.

[0058] It should be noted that the insulating base 30 can be integrally molded with the lead-out component 20 via injection molding. This structural design facilitates the use of the insulating base 30 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 30.

[0060] For example, in some embodiments, the insulating base 30 is provided with a perforation, 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 perforation, the inner wall of the insulating base 30 corresponding to the perforation 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 30 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, glue connection, or heat fusion connection.

[0062] The connection method between the lead-out member 20 and the insulating base 30 is not limited here. As long as the lead-out member 20 is connected to the insulating base 30, the insulating base 30 can be used to wrap part of the structure of the lead-out member 20.

[0063] Continue to combine Figure 1 and Figure 2 As shown, for the purpose of further explaining the structure of the relay, the surface of the relay used to connect to other electrical components such as a circuit board through the lead-out terminal 21 will be referred to as the "mounting surface 101". Thus, the lead-out terminal 21 is exposed on the mounting surface 101.

[0064] 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.

[0065] 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.

[0066] 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, and the lead-out member 20 may be inserted into the insertion hole, thus exposing a portion of the structure of the lead-out member 20 from the insertion hole onto the mounting surface 101 to form a lead-out end 21.

[0067] In some embodiments, the insulating base 30 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 30 are respectively provided with corresponding protrusions or grooves 13. The mating of the corresponding protrusions and grooves 13 facilitates the assembly of the insulating base 30 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 30 relative to the housing 10. Therefore, when the insulating base 30 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.

[0068] 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 30 so as to engage with the housing 10.

[0069] 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.

[0070] The bending portion 22 includes a first sheet 221, a second sheet 222, and a third sheet 223. The first sheet 221 and the third sheet 223 are connected to both ends of the second sheet 222, and are both bent towards the same side relative to the second sheet 222. Figure 1As shown, the housing 10 has slots 13 at positions corresponding to the first piece 221 and the third piece 223. The first piece 221 and the third piece 223 respectively engage with the corresponding slots 13, and the second piece 222 is exposed on the mounting surface 101 to form a lead-out terminal 21. In this embodiment, since the first piece 221 and the third piece 223 are 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 less likely to become loose relative to the housing 10. Because 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 less likely 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 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 electrical components in 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] In some embodiments, when the number of leads 20 is two or more, that is, when the number of leads 20 is at least two, the leads 21 of all leads 20 are exposed on the mounting surface 101. Thus, when installing the relay, the mounting surface 101 can be oriented towards the external electrical component to be connected. Since the leads 21 of all leads 20 are exposed on the mounting surface 101, it is convenient to connect each lead 21 to the external electrical component. For example, when connecting the leads 21 on the mounting surface 101 to the external electrical component by soldering, only the leads 21 on the mounting surface 101 need to be soldered to the external electrical component. The fact that the leads 21 of all leads 20 are exposed on the mounting surface 101, rather than being distributed on different side surfaces of the relay housing 10, simplifies the soldering operation.

[0074] Furthermore, the leads 21 of all the leads 20 protrude from the mounting surface 101 at the same height. Therefore, when connecting the leads 21 on the mounting surface 101 of the relay to external electrical components, it is less likely that some leads 21 will be uneven and cause poor contact with the external electrical components.

[0075] It should be noted that the relay has four leads 21, corresponding to two signal leads 201 and two coil leads 202. These four leads 21 are located at the four corners of the mounting surface 101, and can be connected to external electrical components via surface-mount soldering. This design allows for stable connection to external electrical components using the leads 21 located at the four corners of the same mounting surface 101, and the large distance between the leads 21 provides good electrical isolation.

[0076] 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.

[0077] Combination Figure 3 and Figure 4 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.

[0078] It should be noted that there can be two coil leads 202, each connected to one end of the coil 70. There can also be two signal leads 201, each connected to one of the two stationary contacts 40. The two stationary contacts 40 are correspondingly positioned with the moving contact 90. When the moving contact 90 is in contact with the two stationary contacts 40, the moving contact 90 establishes an electrical path between them; conversely, when the moving contact 90 is not in contact with the two stationary contacts 40, the electrical path between them is broken.

[0079] In some embodiments, the signal lead-out 201 includes a contact end 2011 located in the housing cavity 12 and electrically connected directly or indirectly to the stationary contact 40 of the relay. In this embodiment, an insulating base 30 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.

[0080] Combination Figure 5 As shown, the insulating base 30 is provided with a clearance groove 301, and the stationary contact 40 passes through the clearance groove 301. Therefore, the insulating base 30 and the stationary contact 40 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 30 and the stationary contact 40, avoiding the superposition of the thicknesses of the insulating base 30 and the stationary contact 40. Therefore, this structural design is beneficial to the miniaturization of the relay.

[0081] Furthermore, since the stationary contact 40 passes through the recessed groove 301, the stationary contact 40 can be exposed from the recessed groove 301 to facilitate the electrical connection between the signal lead-out member 201 and the stationary contact 40.

[0082] 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 301, and the contact end 2011 is in direct or indirect electrical contact with the stationary contact 40 within the clearance groove 301.

[0083] In the above embodiments, direct electrical contact refers to the electrical connection between two structural components through direct contact, such as contact end 2011 directly contacting stationary contact 40 to achieve electrical connection between them. Indirect electrical contact refers to the electrical connection between two indirect components through indirect contact. For example, combining... Figure 6 As shown, the relay includes an electrical connector 60, which is connected to the stationary contact 40. The contact end 2011 is in contact with the electrical connector 60. Thus, the electrical connector 60 is used to electrically connect the stationary contact 40 and the contact end 2011, and then the contact end 2011 is in electrical contact with the stationary contact 40.

[0084] In some embodiments, the relay also includes an insulating cover 80, on the top of which a stationary contact 40 is mounted, with one end of the stationary contact 40 located inside the insulating cover 80 and the other end passing through the insulating base 30 in a way that avoids direct contact. Thus, a portion of the structure of the stationary contact 40 can be exposed from the insulating base 30 to facilitate electrical connection with electrical components such as signal lead-out 201.

[0085] Combination Figure 4 and Figure 7 As shown, in some embodiments, the insulating base 30 includes a main body 31 and a support 32 connected together. The main body 31 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 40, located outside the insulating cover 80, passes through the main body 31 to facilitate electrical connection with electrical components such as the signal lead-out member 201. Furthermore, a clearance groove 301 extends through the main body 31, allowing the stationary contact 40 to pass through the main body 31 from the clearance groove 301.

[0086] The support portion 32 is connected to the housing 10 and / or the insulating cover 80, and the support portion 32 is located on the outer periphery of the insulating cover 80. In this way, the support portion 32 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 32 is connected to at least one of the housing 10 and the insulating cover 80, a stable connection is achieved between the insulating base 30 and the housing 10.

[0087] It should be noted that the support portion 32 can be directly or indirectly connected to at least one of the housing 10 and the insulating cover 80. Taking the connection of the support portion 32 to the housing 10 as an example, the support portion 32 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 32 can also be indirectly connected to the housing 10 through other structures. For example, the support portion 32 is connected to at least one lead-out member 20, and the support portion 32 is connected to the housing 10 through the lead-out member 20 connected to it, thereby achieving an indirect connection between the support portion 32 and the housing 10. For the support portion 32, 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 32 within the cavity 12 of the housing 10 is fixed to limit and support the main body 31, the installation stability of the insulating base 30 within the cavity 12 can be maintained, thereby further improving the reliability of the relay.

[0088] Furthermore, the support portion 32 includes a first support plate 321 and a second support plate 322, 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 321 and the second support plate 322. Thus, the insulating cover 80 does not interfere with the first support plate 321 and the second support plate 322, and the first support plate 321 and the second support plate 322 can limit and support both sides of the main body portion 31, thereby improving the stability of the insulating seat 30 within the cavity 12 of the housing 10.

[0089] Combination Figure 7 and Figure 9As shown, the housing 10 includes an outer shell 10a, a first stiffener 10b, and a second stiffener 10c connected to each other. The first stiffener 10b and the second stiffener 10c are both 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 321 is installed in the first assembly space 14, thereby achieving stable installation of the first support plate 321. At least a portion of the structure of the second support plate 322 is installed in the second assembly space 15, thereby achieving stable installation of the second support plate 322. 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 321 and the second support plate 322, thereby improving the installation stability of the insulating base 30. 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.

[0090] 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 no limitation is made here.

[0091] Continue to combine Figure 6 and Figure 7 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 40 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 40, causing the moving contact 90 to contact or separate from the stationary contact 40. When the moving contact 90 contacts the stationary contact 40, the moving contact 90 is electrically connected to the contacting stationary contact 40; correspondingly, when the moving contact 90 separates from the stationary contact 40, the moving contact 90 disconnects the electrical connection with the stationary contact 40.

[0092] There can be two stationary contacts 40, namely a first stationary contact 41 and a second stationary contact 42. The two ends of the moving contact 90 correspond to the two stationary contacts 40 (i.e., the first stationary contact 41 and the second stationary contact 42). The moving contact 90 can move closer to or further away from the two stationary contacts 40 under the action of the driving assembly 100. When the moving contact 90 approaches and contacts the two stationary contacts 40, that is, when the moving contact 90 contacts the first stationary contact 41 and the second stationary contact 42, the first stationary contact 41 is electrically connected to the second stationary contact 42 through the moving contact 90. Correspondingly, when the moving contact 90 separates from the two stationary contacts 40, the moving contact 90 disconnects the electrical connection between the first stationary contact 41 and the second stationary contact 42.

[0093] The number of stationary contacts 40 can also be more than two; there is no limit to the number of stationary contacts 40 here.

[0094] 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 40, so that the moving contact 90 on the push base 1001 comes into contact with or separates from the stationary contact 40, thereby achieving the purpose of electrically connecting or disconnecting the moving contact 90 from the stationary contact 40, so as to meet the need to connect or disconnect the automatic control circuit connected to the relay.

[0095] 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.

[0096] Combination Figure 2 and Figure 3 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.

[0097] 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 40.

[0098] 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 40, thereby bringing the moving contact 90 into contact with the stationary contact 40.

[0099] 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.

[0100] 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 40, causing the moving contact 90 on the push seat 1001 to contact the two stationary contacts 40, thus establishing an electrical connection between the two stationary contacts 40 using the moving contact 90.

[0101] 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 40 via the push rod 1002, so that the moving contact 90 is separated from the two stationary contacts 40, thereby breaking the electrical contact.

[0102] 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.

[0103] In embodiments where the relay includes an electrical connector 60, the electrical connector 60 can electrically connect the stationary contact 40 to other terminals of the relay. For example, in conjunction with Figure 7 and Figure 8As shown, the outer surface of the housing 10 includes a connecting surface 102 disposed opposite to the mounting surface 101. The relay includes a load connection terminal 50 for electrical connection to an external load. The load connection terminal 50 is exposed on the connecting surface 102 and is electrically connected to the stationary contact 40 via an electrical connector 60. In this embodiment, the electrical connector 60 electrically connects the stationary contact 40 to the load connection terminal 50 located on the side of the housing 10 away from the stationary contact 40 (i.e., the side where the connecting surface 102 is located). Based on this, when the load connection terminal 50 is electrically connected to an external load, the moving contact 90 of the relay is relatively far from the stationary contact 40 under the action of gravity, thereby reducing the probability of accidental contact with the stationary contact 40 due to vibration and improving safety in use.

[0104] The number of load connection terminals 50 can be two, and the number of electrical connectors 60 can be two, so that the two stationary contacts 40 can be electrically connected to the two load connection terminals 50 respectively using the two electrical connectors 60. The electrical connectors 60 and the housing 10 are integrally formed, so the electrical connectors 60 are not easy to loosen. In addition, with this structure, the electrical connectors 60 do not occupy the space of the housing cavity 12 of the housing 10, which is conducive to the miniaturization of the relay. Since the housing 10 of the relay is made of insulating material, when the electrical connectors 60 and the housing 10 are integrally formed, the housing 10 can cover part of the structure of the electrical connectors 60, thereby increasing the creepage distance between the electrical connectors 60 and other electrical components of the relay, thereby improving the electrical isolation performance of the relay.

[0105] Combination Figure 8 As shown, in some embodiments, a portion of the electrical connector 60 is embedded in the shell wall 11 of the housing 10. With this structural arrangement, the shell wall 11 of the housing 10 can effectively enclose a portion of the electrical connector 60, thereby improving the stability of the electrical connector 60 and enhancing the electrical isolation performance between the electrical connector 60 and other electrical components.

[0106] Combination Figure 8 As shown, in some embodiments, the electrical connector 60 is arranged in a "U" shape to avoid structures such as the coil 70, yoke assembly 120, drive assembly 100, or insulating cover 80 in the relay. In other words, at least a portion of the structures such as the coil 70, insulating cover 80, drive assembly 100, or yoke assembly 120 are housed within the space enclosed by the electrical connector 60, thereby maintaining the compactness of the components in the relay and facilitating the miniaturization of the relay.

[0107] 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.

[0108] 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 in that, include: The shell (10) has a cavity (12) inside it; Lead-out member (20), the lead-out member (20) includes a lead-out end (21), the lead-out end (21) being exposed on the outer surface of the housing (10); An insulating seat (30) is located in the cavity (12) and the insulating seat (30) connects to and encloses part of the lead-out member (20). The relay also includes a stationary contact (40) and an insulating cover (80). One end of the stationary contact (40) is located inside the insulating cover (80), and the other end passes through the insulating base (30) in a way that avoids obstruction. The insulating base (30) includes a main body (31) and a support (32) connected to each other. The main body (31) is connected to and encloses part of the lead-out member (20). The main body (31) is located above the insulating cover (80), and the support (32) is connected to the housing (10) and / or the insulating cover (80).

2. The relay according to claim 1, characterized in that, The lead-out member (20) and the insulating base (30) are integrally formed; Alternatively, the insulating base (30) may be provided with a perforation, through which a portion of the lead-out member (20) passes.

3. The relay according to claim 1, characterized in that, The insulating base (30) includes a first base body and a second base body, which are connected to each other, such that a portion of the structure of the lead-out member (20) is sandwiched between the first base body and the second base body.

4. The relay according to claim 1, characterized in that, The outer surface of the housing (10) includes a mounting surface (101). 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) and exposes the lead-out end (21) on the mounting surface (101).

5. The relay according to claim 4, characterized in that, The lead-out member (20) includes a bending portion (22), which 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) at the positions corresponding to 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), and the second piece (222) is exposed on the mounting surface (101) to form the lead-out end (21).

6. The relay according to claim 4, characterized in that, The number of the lead-out members (20) is at least two, and the lead-out ends (21) of all the lead-out members (20) protrude from the mounting surface (101) at the same height.

7. The relay according to claim 6, characterized in that, 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), and the four leads (21) can be connected to external electrical components by surface welding.

8. The relay according to claim 1, characterized in that, 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 directly or indirectly to the stationary contact (40).

9. The relay according to claim 8, characterized in that, The insulating base (30) is provided with a clearance groove (301), and the stationary contact (40) passes through the clearance groove (301).

10. The relay according to claim 9, characterized in that, At least a portion of the structure of the contact end (2011) is disposed within the clearance groove (301), and the contact end (2011) is in direct or indirect electrical contact with the stationary contact (40) within the clearance groove (301).

11. The relay according to claim 1 or 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).

12. The relay according to claim 1, characterized in that, The stationary contact (40) is mounted on the top of the insulating cover (80).

13. The relay according to claim 1, characterized in that, The support (32) is located on the outer periphery of the insulating cover (80).

14. The relay according to claim 13, characterized in that, The support portion (32) includes a first support plate (321) and a second support plate (322), the first support plate (321) and the second support plate (322) being spaced apart from each other, and at least a portion of the structure of the insulating cover (80) being located between the first support plate (321) and the second support plate (322).

15. The relay according to claim 14, characterized in that, The housing (10) includes a shell (10a), a first stiffener (10b), and a second stiffener (10c) connected to each other. The first stiffener (10b) and the second stiffener (10c) are both located inside the 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), at least a portion of the structure of the first support plate (321) is installed in the first assembly space (14), a second assembly space (15) is formed between the second stiffener (10c) and the inner wall of the outer shell (10a), and at least a portion of the structure of the second support plate (322) is installed in the second assembly space (15).

Images