relay

Abstract

This application relates to a relay, comprising: a first housing; a second housing covering the first housing and forming an installation space therewith; a contact component disposed in the installation space, extending along a first direction within the installation space; and a lead-out terminal, one end of which is disposed in the installation space and electrically connected to the contact component, and the other end extending through the first housing and / or the second housing along the first direction; wherein the first housing and / or the second housing has a first positioning structure, the first positioning structure being connected to the lead-out terminal to position the lead-out terminal, thereby positioning at least the contact gap of the contact component. This allows for accurate positioning of the lead-out terminal relative to the first and second housings, thereby improving the assembly accuracy of the lead-out terminal and positioning at least the contact gap of the contact component, thus improving the reliability of the contact gap and ensuring the performance of the relay.

Description

Technical Field

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

[0002] A relay is an electronic control device that has a control system (also known as an input circuit) and a controlled system (also known as an output circuit), and is commonly used in automatic control circuits. Essentially, a relay is an "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays a role in automatic adjustment, safety protection, and circuit switching in circuits.

[0003] Typically, one end of a relay lead is internally connected to the contacts within the housing, while the other end extends through the housing to connect to an external wire. However, with increasing demands for current carrying capacity, relay products are often made larger, making it difficult to guarantee the stability of the lead. This can affect the contact gap and consequently impact product performance. Utility Model Content

[0004] Therefore, it is necessary to address the problem that the stability of the leads in current relays is difficult to guarantee, which affects product performance. A new type of relay should be provided that can improve the positioning accuracy of the leads, thereby ensuring the assembly accuracy of the leads and ultimately guaranteeing the performance of the relay.

[0005] A relay, comprising:

[0006] First shell;

[0007] The second housing covers the first housing and together with the first housing forms an installation space;

[0008] A contact component, disposed in the mounting space, the contact component extending along a first direction in the mounting space; and

[0009] One end of the lead-out end is disposed in the installation space and electrically connected to the contact component, and the other end extends through the first housing and / or the second housing in a first direction;

[0010] The first housing and / or the second housing have a first positioning structure, which is connected to the lead-out end to position the lead-out end, thereby positioning at least the contact gap of the contact assembly.

[0011] In one embodiment of this application, the second housing includes a bottom plate and a plurality of side plates, wherein the plurality of side plates are disposed on the bottom plate;

[0012] The side plate has a first mounting position, which is an open groove on the side of the side plate away from the bottom plate. The lead-out end is perpendicular to the bottom plate and is installed through the first mounting position to extend out of the side plate.

[0013] In one embodiment of this application, a first positioning structure is provided on the surface of the first housing facing the second housing, and a first positioning structure is also provided on the surface of the second housing facing the first housing. The two first positioning structures are arranged opposite to each other and are simultaneously connected to the lead-out end.

[0014] In one embodiment of this application, the lead-out end further includes a connecting body and a lead-out body, the connecting body being located in the installation space, and the lead-out body extending out through the first housing and / or the second housing;

[0015] The lead-out body extends along the first direction, or the lead-out body has a bent portion that bends along the second direction.

[0016] In one embodiment of this application, the relay further includes a second positioning structure, wherein one of the first housing and the second housing has the first positioning structure, and the other housing is provided with the second positioning structure between itself and the lead-out terminal, and the first positioning structure and the second positioning structure are simultaneously connected to the lead-out terminal.

[0017] In one embodiment of this application, the second positioning structure is located in the installation space and is positioned opposite to the first positioning structure, or the second positioning structure is located outside the installation space.

[0018] In one embodiment of this application, the relay includes at least two leads, and the first positioning structure and the second positioning structure are connected to the at least two leads to position the at least two leads;

[0019] Wherein, at least two of the leads extend through the first housing and / or the second housing on the same side, or at least two of the leads extend through the first housing and / or the second housing on opposite sides.

[0020] In one embodiment of this application, the contact direction of the contact component is referred to as the second direction, and the direction perpendicular to the first direction and the second direction is referred to as the third direction;

[0021] The first positioning structure and the second positioning structure are disposed on both sides of the lead-out end along a third direction and are positioned and connected to the lead-out end.

[0022] In one embodiment of this application, the first positioning structure and the second positioning structure are assembled with the lead-out end along a third direction;

[0023] And / or, the second positioning structure is fixedly connected to the first housing or the second housing.

[0024] In one embodiment of this application, the number of the second positioning structures is one, and one second positioning structure is connected to at least two of the leads simultaneously; or, the number of the second positioning structures is at least two, and each second positioning structure is connected to at least one of the leads.

[0025] In one embodiment of this application, the number of the first positioning structures is equal to the number of the leads, and each of the first positioning structures positions one of the leads.

[0026] In one embodiment of this application, the first positioning structure includes a first mounting member, and the second positioning structure includes a support body and a second mounting member. The first mounting member forms a first mounting groove, and the second mounting member is disposed on the support body and forms a second mounting groove.

[0027] The lead-out end has a first mating protrusion and a second mating protrusion on its two sides along the third direction, respectively. The first mating protrusion is installed in the first mounting groove, and the second mating protrusion is installed in the second mounting groove.

[0028] In one embodiment of this application, the first mating protrusion and / or the second mating protrusion at least partially overlap with the stationary contact of the contact component in a third direction;

[0029] And / or, the first mating protrusion and the second mating protrusion extend in opposite directions along a third direction;

[0030] And / or, the number of the first mating protrusions is one or more, and multiple first mating protrusions are mounted in one first mounting groove or are respectively mounted in one first mounting groove;

[0031] And / or, the number of the second mating protrusions is one or more, and multiple second mating protrusions are mounted in a second mounting groove or are respectively mounted in a second mounting groove.

[0032] In one embodiment of this application, the first housing and / or the second housing have a first mounting position, and the second positioning structure further includes a support baffle. The support baffle is located at the edge of the support body and extends along a third direction. The support baffle has a second mounting position, and the lead-out end extends through the first mounting position and the second mounting position along a first direction.

[0033] In one embodiment of this application, the first positioning structure further includes a first positioning part, the second positioning structure further includes a second positioning part, and the surface of the lead-out end facing the second direction has a third positioning part and a fourth positioning part;

[0034] The third positioning part is disposed corresponding to the first positioning part and is positioned and installed in the first positioning part; the fourth positioning part is disposed corresponding to the second positioning part and is installed in the second positioning part.

[0035] In one embodiment of this application, the first positioning structure further includes a snap-fit ​​protrusion, and the edge of the lead-out end also has a recessed portion recessed along a third direction. The snap-fit ​​protrusion is correspondingly disposed with the recessed portion and is snapped into the recessed portion.

[0036] In one embodiment of this application, the first positioning structure further includes a first positioning element, and the second positioning structure further includes a second positioning element disposed on the support body. The second positioning element is disposed corresponding to the first positioning element and is positioned and connected.

[0037] And / or, the first positioning structure further includes a first fixing part, and the second positioning structure further includes a second fixing part disposed on the support body. The first fixing part and the second fixing part are disposed correspondingly. The relay further includes a fastener. The fastener connects the first fixing part and the second fixing part. The fastener connects the first fixing part and the second fixing part by means of threaded connection, riveting or adhesive connection.

[0038] In one embodiment of this application, the support body further has a plurality of hollowed-out portions, which are connected to the mounting space to expose the contact portion of the contact component in the mounting space.

[0039] In one embodiment of this application, the contact assembly includes a moving contact and a stationary contact, the lead-out end is connected to the moving contact and / or the stationary contact, and the first positioning structure and the second positioning structure are capable of supporting the lead-out end in the contact direction between the moving contact and the stationary contact.

[0040] In one embodiment of this application, the contact assembly includes a plurality of moving contacts and a plurality of stationary contacts. The plurality of moving contacts are spaced apart in the mounting space along a second direction. Each stationary contact is arranged opposite to a corresponding moving contact. The moving contact moves along the second direction to close or open with the corresponding stationary contact.

[0041] In one embodiment of this application, the moving contact includes a moving spring and a moving contact disposed on the moving spring. The moving spring is movably disposed in the mounting space along a second direction. The stationary contact includes a stationary contact disposed in the mounting space and opposite to the moving contact. The moving spring moves along the second direction to close or open the moving contact with the stationary contact.

[0042] In one embodiment of this application, the moving spring includes a fixed body and a plurality of flow guiding branches. The plurality of flow guiding branches are spaced apart on the fixed body along a third direction and extend along a first direction. The number of moving contacts and stationary contacts are both multiple and are correspondingly arranged. Each flow guiding branch is provided with one moving contact.

[0043] In the relay of this application, a second housing covers the first housing and together they form an installation space. A lead-out terminal is disposed within this installation space and extends through the first and / or second housings. Furthermore, the first and / or second housings have a first positioning structure that can connect to the lead-out terminal to position it accurately relative to the first and second housings. This improves the assembly precision of the lead-out terminal and, at least, positions the contact gap in the contact components, thereby enhancing the reliability of the contact gap and ensuring the relay's performance. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of a relay according to an embodiment of this application.

[0045] Figure 2 for Figure 1 The diagram shown is a schematic of the relay with the first housing removed from one viewpoint.

[0046] Figure 3 for Figure 2 The diagram shown is a schematic of the relay without the second positioning structure from one perspective.

[0047] Figure 4 for Figure 3 The diagram shows a relay from another perspective.

[0048] Figure 5 for Figure 3 The diagram shows the interaction between the contact components and the leads in the relay.

[0049] Figure 6 for Figure 3 The diagram shows a schematic of the second housing in the relay from one perspective.

[0050] Figure 7 for Figure 6The diagram shows the second housing from another perspective.

[0051] Figure 8 for Figure 2 The relay shown is shown in top view.

[0052] Figure 9 for Figure 2 The diagram shows a relay from another perspective.

[0053] Figure 10 for Figure 2 The diagram shows the second positioning structure in the relay from one perspective.

[0054] Figure 11 for Figure 10 The diagram shows the second positioning structure from another perspective.

[0055] Figure 12 for Figure 3 The relay shown is shown in top view.

[0056] Figure 13 for Figure 8 The relay shown is a cross-sectional view at point AA.

[0057] Figure 14 for Figure 8 The relay shown is a cross-sectional view at BB.

[0058] Wherein: 10, relay; 100, first housing; 110, first snap-fit ​​part; 200, second housing; 210, first positioning structure; 211, first mounting part; 2111, first mounting groove; 212, first positioning part; 213, snap-fit ​​protrusion; 214, first positioning part; 215, first fixing part; 220, second snap-fit ​​part; 230, base plate; 240, side plate; 241, first mounting position; 300, contact assembly; 310, moving contact; 311, moving spring; 3111, flow guide branch; 312, moving contact; 320, stationary contact; 321, stationary... Contact; 400, Lead-out end; 410, Connecting body; 420, Lead-out body; 421, Bending part; 430, First mating protrusion; 440, Second mating protrusion; 450, Third positioning part; 460, Fourth positioning part; 470, Recessed part; 500, Drive structure; 600, Second positioning structure; 610, Support body; 611, Hollowed-out part; 620, Second mounting part; 621, Second mounting groove; 630, Support baffle; 631, Second mounting position; 640, Second positioning part; 650, Second positioning element; 660, Second fixing part; 700, Fastener. Detailed Implementation

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] A relay is an electronic control device that plays a role in circuits, including automatic adjustment, safety protection, and circuit switching. Typically, one end of a relay's lead is internally connected to the contacts, while the other end extends through the housing to connect to an external wire. However, with increasing demands for current carrying capacity, relay products are often made larger, making it difficult to guarantee the stability of the lead. This can affect the contact gap and consequently impact product performance.

[0066] See Figures 1 to 5 This application provides a relay 10. Optionally, the relay 10 is a large-volume, tall type of relay. Figure 1 This is a schematic diagram of a relay 10 according to an embodiment of this application. Figure 2 for Figure 1 The diagram shown is a schematic of the relay 10 without the first housing 100. Figure 3 for Figure 2 The diagram shown is a schematic representation of the relay 10 without the second positioning structure 600 from one viewpoint. Figure 4 for Figure 3 The diagram shown is a schematic representation of the relay 10 from another perspective. Figure 5 for Figure 3 The diagram shows the interaction between the contact component 300 and the lead-out terminal 400 in the relay 10.

[0067] The relay 10 has a lead-out terminal 400 through which external wires are connected. The relay 10 of this application can achieve accurate positioning of the lead-out terminal 400, thereby improving the assembly precision of the lead-out terminal 400, enhancing the reliability of the contact gap, and ultimately ensuring the performance of the relay 10. The specific structures of the relay 10 in some embodiments are described below.

[0068] See Figures 1 to 5 In one embodiment, the relay 10 includes a first housing 100, a second housing 200, a contact assembly 300, and a lead-out terminal 400. The second housing 200 covers the first housing 100 and together with the first housing 100 forms an installation space (not shown). The contact assembly 300 is disposed in the installation space and extends in the installation space along a first direction. One end of the lead-out terminal 400 is disposed in the installation space and electrically connected to the contact assembly 300, and the other end extends through the first housing 100 and / or the second housing 200 along the first direction. The first housing 100 and / or the second housing 200 have a first positioning structure 210, which connects to the lead-out terminal 400 to position the lead-out terminal 400, thereby positioning at least the contact gap of the contact assembly 300.

[0069] The first housing 100 is the top cover of the relay 10, and the second housing 200 is the mounting base of the relay 10. The first housing 100 covers the second housing 200 to form the outer shell of the relay 10. The first housing 100 and the second housing 200 enclose a mounting space, in which the contact component 300 and the lead-out terminal 400 are located. The first housing 100 and the second housing 200 protect the contact component 300 and the lead-out terminal 400, ensuring the safety of the relay 10 in use. The contact component 300 is a spring-loaded structure of the relay 10. One end of the lead-out terminal 400 can be electrically connected to the contact component 300, and the other end of the lead-out terminal 400 can extend through the first housing 100 and / or the second housing 200.

[0070] In this embodiment, the other end of the lead-out end 400 can extend through the first housing 100 and the second housing 200. Of course, in other embodiments of this application, the other end of the lead-out end 400 may extend only through the first housing 100 or only through the second housing 200. For ease of description, the phrase "the other end of the lead-out end 400 can extend through the second housing 200" will be used instead of "extension through the first housing 100 and the second housing 200". After the other end of the lead-out end 400 extends through the second housing 200, the lead-out end 400 is partially located inside the second housing 200 and partially located outside the second housing 200.

[0071] Thus, the lead-out end 400 can be connected to a wire on one end outside the second housing 200 to connect the relay 10 to the circuit. The contact component 300 can close or open to achieve the closing or opening of the relay 10. When the contact component 300 is closed, the relay 10 is in the closed state, thereby conducting the circuit; when the contact component 300 is open, the relay 10 is in the open state, thereby forming an open circuit.

[0072] For ease of description, we introduce the terms "first direction," "second direction," and "third direction," meaning that relay 10 has a first direction, a second direction, and a third direction. For example... Figures 1 to 3 As shown, the first direction is the extending direction of the contact component 300, the second direction is the contact direction of the contact component 300, and the third direction is a direction perpendicular to the first and second directions. The contact component 300 can close or open along the second direction. This application only uses... Figures 1 to 3 The first direction, the second direction, and the third direction shown describe the structure of the relay 10. The relay 10 and its various components are arranged according to the first direction, the second direction, and the third direction. The first direction, the second direction, and the third direction will be used directly in the following text.

[0073] In this application, the lead-out end 400 extends through the first housing 100 and / or the second housing 200 along a first direction. At this time, the lead-out end 400 is perpendicular to the inner bottom wall of the second housing 200. Thus, the lead-out end 400 is in an upright position relative to the inner bottom wall of the second housing 200, allowing it to extend vertically out of the second housing 200. This reduces the horizontal space occupied by the lead-out end 400 and facilitates the design of more lead-out ends 400 on the side of the second housing 200 to meet the usage requirements of different working conditions.

[0074] Understandably, the lead-out terminal 400 is directly connected to the contact assembly 300. The positioning accuracy of the lead-out terminal 400 directly affects the gap between the contacts in the contact assembly 300. If the positioning reliability of the lead-out terminal 400 is poor, it will affect the contact gap, and thus affect the closing or opening of the contacts. To this end, the relay 10 of this application is provided with a first positioning structure 210 on the first housing 100 and / or the second housing 200. The first positioning structure 210 can be connected to the lead-out terminal 400. In this way, the lead-out terminal 400 can be positioned by the first positioning structure 210, thereby at least positioning the contact gap of the contact assembly 300 to ensure the positioning accuracy of the lead-out terminal 400.

[0075] This application can provide a first positioning structure 210 on the second housing 200 to position the lead-out end 400 on the second housing 200 side. Alternatively, the first positioning structure 210 can be provided on the first housing 100 to position the lead-out end 400 on the first housing 100 side. Or, the first positioning structure 210 can be provided on both the first housing 100 and the second housing 200. The first positioning structure 210 can position the lead-out end 400 on both sides, providing accuracy in positioning the lead-out end 400.

[0076] It is worth noting that the structure and positioning principle of the first positioning structure 210 on the first housing 100 are essentially the same as those of the first positioning structure 210 on the second housing 200. The following description will only use the example of the first positioning structure 210 on the second housing 200. In this application, the first positioning structure 210 and the second housing 200 are an integral structure. During the molding of the second housing 200, the first positioning structure 210 is directly molded on the second housing 200. This reduces the number of parts and simplifies the assembly process. Simultaneously, since the first positioning structure 210 is integrated into the second housing 200, the lead-out end 400 is positioned by the first positioning structure 210, eliminating the need for the second housing 200 to position the lead-out end 400.

[0077] In this way, the first positioning structure 210 can position the lead-out end 400, ensuring accurate positioning of the lead-out end 400 relative to the first positioning structure 210, thereby improving the assembly accuracy of the lead-out end 400 and at least positioning the contact gap of the contact assembly 300. Thus, the first positioning structure 210 can improve the reliability of the positioning of the lead-out end 400 in the contact direction of the contact assembly 300, ensuring accurate contact gap and improving the reliability of the contact gap, avoiding affecting the closing or opening of the contacts, and thus ensuring the performance of the relay 10.

[0078] See Figure 1 In one embodiment, the first housing 100 has a plurality of first snap-fit ​​portions 110, and the second housing 200 has a second snap-fit ​​portion 220. After the first housing 100 is placed over the second housing 200, the first housing 100 is snapped together with the second housing 200 via the first snap-fit ​​portions 110, thereby fixing the first housing 100 onto the second housing 200. Fixing the first housing 100 and the second housing 200 via the first snap-fit ​​portions 110 and the second snap-fit ​​portions 220 facilitates the assembly of the first housing 100 and the second housing 200 and reduces assembly difficulty.

[0079] In this embodiment, the first snap-fit ​​portion 110 is a snap fastener, and the second snap-fit ​​portion 220 is a slot. Of course, the first snap-fit ​​portion 110 can also be a snap fastener, and the second snap-fit ​​portion 220 can be a slot. In other embodiments of this application, the first housing 100 and the second housing 200 can also be connected by riveting, threaded connection, or other methods.

[0080] See Figures 3 to 5 In one embodiment, the contact assembly 300 includes a moving contact 310 and a stationary contact 320, which are disposed opposite to each other in the second housing 200. The moving contact 310 is movably disposed in the second housing 200, and the stationary contact 320 is fixedly disposed in the second housing 200. The moving contact 310 extends along a first direction, and the moving contact 310 and the stationary contact 320 contact or separate along a second direction. The moving contact 310 can move toward or away from the stationary contact 320, so that the moving contact 310 and the stationary contact 320 close or open along the second direction (the contact direction, which will not be described again below), thereby realizing the closing or opening of the relay 10.

[0081] See Figures 3 to 5 In one embodiment, the moving contact 310 includes a moving spring 311 and a moving contact 312. The moving spring 311 is movably disposed in the second housing 200 along a second direction, and the moving contact 312 is disposed on the moving spring 311. The stationary contact 320 includes a stationary contact 321, which is riveted to the second housing 200 and disposed opposite to the moving contact 312. The moving spring 311 can move along the second direction to close or open the moving contact 312 and the stationary contact 321, thereby realizing the closing or opening of the moving contact 310 and the stationary contact 320, and thus realizing the closing or opening of the relay 10.

[0082] In one embodiment, the lead-out terminal 400 is connected to the moving contact 310 and / or the stationary contact 320. In this embodiment, the lead-out terminal 400 is connected to the moving contact 310 and the stationary contact 321. Of course, in other embodiments of this application, the lead-out terminal 400 may also be connected to the stationary contact 320 or to both the moving contact 310 and the stationary contact 320.

[0083] See Figures 3 to 5For example, the lead-out end 400 is connected to the movable spring 311 and the stationary contact 321. The movable spring 311 is riveted to the lead-out end 400, and the stationary contact 321 passes through the movable spring 311 and is riveted to the lead-out end 400. Thus, after the lead-out end 400 extends through the second housing 200, a wire is connected to the lead-out end 400 to connect the movable spring 311 to the circuit. Optionally, the lead-out end 400 and the movable spring 311 can be an integral structure. Of course, in other embodiments of this application, the lead-out end 400 and the movable spring 311 can also be separately configured and reliably connected by riveting or other methods. In this embodiment, the stationary contact 321 is separately riveted and fixedly connected to the lead-out end 400. Of course, in other embodiments of this application, the stationary contact 321 can also be integrally formed on the lead-out end 400.

[0084] In one embodiment, the relay 10 further includes a drive structure 500, which is disposed in the second housing 200 and can abut against the movable spring 311. The drive structure 500 can drive the movable spring 311 to move in a second direction, so that the movable contact 312 can close or open with the stationary contact 321. The drive structure 500 is the power source of the relay 10. By controlling the movement of the movable spring 311 through the drive structure 500, the closing or opening control of the relay 10 can be achieved. In other embodiments, the drive structure 500 can indirectly push and pull the movable spring 311 through a push-pull structure. In this embodiment, the drive structure 500 is a magnetic circuit structure, and the movement of the movable spring 311 is driven by the cooperation of the coil and the armature assembly. Of course, in other embodiments of this application, the drive structure 500 can also be other structures capable of driving the movement of the movable spring 311, such as a motor.

[0085] It is worth noting that the focus of this application is on the structure and principle of positioning of the lead-out end 400. The structure of the drive structure 500, the structure and principle of the drive structure 500 driving the moving spring 311, and the structure and principle of the moving contact 310 and the stationary contact 320 are not the focus of this application and will not be described in this application.

[0086] See Figure 3 , Figure 4 and Figure 6 In one embodiment, the second housing 200 includes a base plate 230 and a plurality of side plates 240 disposed on the base plate 230. The base plate 230 has a first mounting position 241, which is an open groove on the side of the side plate 240 facing away from the base plate 230. An extension end 400 is perpendicular to the base plate 230 and passes through the first mounting position 241 to extend the side plate 240. Figure 6 for Figure 3 The diagram shown is a schematic representation of the second housing 200 in the relay 10 from one perspective. Figure 7 for Figure 6A schematic diagram of the second housing 200 from another perspective.

[0087] The base plate 230 serves as the base of the second housing 200. Multiple side plates 240 are disposed on the edges of the base plate 230, and the edges of adjacent side plates 240 are connected to form a box-like structure for the second housing 200. Thus, the multiple side plates 240 and the base plate 230 can enclose an installation space. A moving contact 310, a stationary contact 320, a lead-out end 400, and a first positioning structure 210 are disposed within the installation space. The moving contact 310 and the stationary contact 320 close or open within the installation space. The lead-out end 400 is connected to a moving spring 311 within the installation space, and the first positioning structure 210 positions the lead-out end 400 within the installation space.

[0088] Furthermore, the first mounting position 241 penetrates the side plate 240 along a first direction and has a certain depth along a third direction, forming an open groove above the side plate 240. This first mounting position 241 connects to the mounting space, thereby connecting the outer and inner mounting spaces of the second housing 200. The lead-out end 400 can extend through the first mounting position 241, and at this time, the lead-out end 400 can be perpendicular to the bottom plate 230. In this way, the lead-out end 400 is in an upright state relative to the bottom plate 230, so that the lead-out end 400 extends vertically out of the second housing 200, thereby reducing the space occupied by the lead-out end 400 in the horizontal direction and facilitating the design of more lead-out ends 400 on the side of the second housing 200 to meet the usage requirements of different working conditions. Optionally, the lead-out end 400 can also be perpendicular to the bottom plate 230 and the side plate 240.

[0089] This application employs a first positioning structure 210 to position the lead-out end 400. The lead-out end 400 extends only through the first mounting position 241 of the side plate 240, eliminating the need for the inner wall of the first mounting position 241 to position the lead-out end 400. This avoids affecting the positioning of the lead-out end 400, ensuring the assembly accuracy of the lead-out end 400, and thus guaranteeing a reliable gap between the moving contact 312 and the stationary contact 321. Simultaneously, during the molding of the second housing 200, there is less need to control numerous dimensions, reducing the molding difficulty of the second housing 200 and facilitating its molding process.

[0090] Furthermore, a first positioning structure 210 is used to position the lead-out end 400 in the contact direction between the moving contact 310 and the stationary contact 320. The first positioning structure 210 is fixedly installed on the base plate 230 of the second housing 200. The first positioning structure 210 can position the lead-out end 400, that is, the base plate 230 positions the first positioning structure 210, thereby positioning the lead-out end 400. When the reaction force generated when the moving contact 310 and the stationary contact 320 close or open is applied to the lead-out end 400, due to the positioning of the lead-out end 400 by the first positioning structure 210, the first positioning structure 210 has good strength and is not easily deformed, thus providing sufficient support for the lead-out end 400.

[0091] In this way, even if the first mounting position 241 on the side plate 240 is deep, the side plate 240 does not need to support the lead-out end 400, thus avoiding deformation of the side plate 240 and ensuring the structural strength of the second housing 200. At the same time, the first positioning structure 210 can provide positioning accuracy and reliable support for the lead-out end 400 in the contact direction, so as to achieve accurate positioning of the lead-out end 400 and thus ensure the reliability of the contact gap.

[0092] Furthermore, the first positioning structure 210 is disposed on the inner bottom wall of the second housing 200, that is, the first positioning structure 210 is disposed on the surface of the base plate 230. In this way, the second housing 200 can position the first positioning structure 210 through the base plate 230, realizing the relative positioning of the lead-out end 400 within the second housing 200. After the lead-out end 400 is subjected to force and transmitted to the first positioning structure 210, the force of the first positioning structure 210 can be transmitted to the base plate 230. Since the base plate 230 is relatively reliable in strength and not easily deformed, it can improve the positioning accuracy of the first positioning structure 210 in the second housing 200, thereby improving the positioning accuracy of the lead-out end 400.

[0093] See Figure 2 , Figures 8 to 11 In one embodiment of this application, the relay 10 further includes a second positioning structure 600. One of the first housing 100 and the second housing 200 has a first positioning structure 210, and the other housing has a second positioning structure 600 disposed between it and the lead-out terminal 400. The first positioning structure 210 and the second positioning structure 600 are simultaneously connected to the lead-out terminal 400. Figure 8 for Figure 2 The top view of relay 10 shown. Figure 9 for Figure 2 The diagram shown is a schematic representation of relay 10 from another perspective. Figure 10 for Figure 2 The diagram shown is a schematic representation of the second positioning structure 600 in the relay 10 from one perspective. Figure 11 for Figure 10 A schematic diagram of the second positioning structure 600 from another perspective.

[0094] The second positioning structure 600 is separately configured from the first housing 100 and the second housing 200. Understandably, after the relay 10 is assembled, the moving contact 312 and the stationary contact 321 need to be tested to ensure the performance of the relay 10. However, the first housing 100 and the second housing 200 need to ensure the relay 10 is sealed and cannot have openings for testing. Therefore, this application designs the second positioning structure 600, which, in conjunction with a first positioning structure 210, positions the lead-out terminal 400. Simultaneously, contact testing can also be performed on the second positioning structure 600. Thus, when the second positioning structure 600 covers the second housing 200, the first positioning structure 210 and the second positioning structure 600 can respectively connect to the lead-out terminal 400, achieving the positioning of the lead-out terminal 400 and ensuring the positioning accuracy of the lead-out terminal 400.

[0095] In this embodiment, the second housing 200 has a first positioning structure 210, and a second positioning structure 600 is provided on the side of the lead-out end 400 away from the second housing 200, that is, the second positioning structure 600 is located between the lead-out end 400 and the first housing 100. Alternatively, the first housing 100 may have a first positioning structure 210, and the second positioning structure 600 may be provided on the side of the lead-out end 400 away from the first housing 100, that is, the second positioning structure 600 is located between the lead-out end 400 and the second housing 200. The following description will only use the example of the second housing 200 having a first positioning structure 210 and the second positioning structure 600 being located between the lead-out end 400 and the first housing 100.

[0096] In another embodiment of this application, a first positioning structure 210 is provided on the surface of the first housing 100 facing the second housing 200, and a first positioning structure 210 is also provided on the surface of the second housing 200 facing the first housing 100. The two first positioning structures 210 are arranged opposite to each other and are simultaneously connected to the lead-out end 400. In this embodiment, a second positioning structure 600 is not provided. The first positioning structure 210 is integrated on the first housing 100 and also on the second housing 200. When the first housing 100 covers the second housing 200, the two first positioning structures 210 can simultaneously connect to the lead-out end 400, thereby achieving the positioning of the lead-out end 400 and ensuring the positioning accuracy of the lead-out end 400.

[0097] It is worth noting that the lead-out terminal 400 can be positioned using the first positioning structure 210 and the second positioning structure 600, or it can be positioned using two first positioning structures 210. The positioning principles of the two are essentially the same. Furthermore, when two first positioning structures 210 are used for positioning, the structure and principle of the two first positioning structures 210 are essentially the same. The following text will only describe the structure and principle of positioning the lead-out terminal 400 using the first positioning structure 210 and the second positioning structure 600. The structure and principle of positioning using two first positioning structures 210 will not be described again.

[0098] See Figure 2 , Figures 8 to 11 In one embodiment, the second positioning structure 600 is fixedly connected to the first housing 100 or the second housing 200. After the second positioning structure 600 and the first positioning structure 210 position the lead-out end 400, the second positioning structure 600 can be fixed to the first housing 100 or the second housing 200 to fix the position of the second positioning structure 600, ensuring the positioning effect of the second positioning structure 600 on the lead-out end 400 and preventing the position of the second positioning structure 600 from shifting. In this embodiment, the second positioning structure 600 is fixed to the second housing 200. Optionally, the second positioning structure 600 is fixed to the second housing 200 by means of threaded connection or riveting, which will be described in detail later.

[0099] See Figures 2 to 5 In one embodiment, the contact assembly 300 includes a plurality of moving contacts 310 and a plurality of stationary contacts 320. The moving contacts 310 are spaced apart in the second housing 200, and each stationary contact 320 is arranged opposite to a corresponding moving contact 310. When a moving contact 310 moves, it can close or open with its corresponding stationary contact 320. The relay 10 has a plurality of moving contacts 310 and a plurality of stationary contacts 320, which increases the current-carrying capacity of the relay 10 while reducing temperature rise, enabling the relay 10 to withstand larger currents to meet the needs of high-current electrical equipment and ensure the performance of the relay 10. The plurality of moving contacts 310 are spaced apart in the second housing 200 and correspond one-to-one with the plurality of stationary contacts 320. Thus, each moving contact 310 can close or open with its corresponding stationary contact 320.

[0100] In one embodiment, the lead-out end 400 is connected to the moving contact 310, and the first positioning structure 210 can support the lead-out end 400 in the contact direction between the moving contact 310 and the stationary contact 320. The moving spring 311 can move in a second direction so that the moving contact 312 and the stationary contact 321 can close or open in the contact direction. It is understood that the lead-out end 400 and the moving spring 311 are fixedly connected, such as by riveting, to improve the structural strength of the connection between the lead-out end 400 and the moving contact 310.

[0101] When the moving contact 312 and the stationary contact 321 are closed or open, the moving spring 311 will be subjected to a certain force. This force will cause the lead-out end 400 to wobble in the contact direction, affecting the contact gap. The first positioning structure 210 can support the lead-out end 400 in the contact direction, restrict the displacement of the lead-out end 400 in the contact direction, and can achieve positioning of the lead-out end 400 in the contact direction, improve assembly accuracy, improve the reliability of the contact gap, and thus ensure the performance of the relay 10.

[0102] In one embodiment, a plurality of moving contacts 310 are spaced apart in the second housing 200 along a second direction, and the moving contacts 310 close or open with the stationary contacts 320 along the second direction. A moving spring 311 moves along the second direction to cause a moving contact 312 to close or open with a stationary contact 321 along the second direction, and the moving contacts 310 to close or open with the stationary contacts 320 along the second direction. In other embodiments of this application, the plurality of moving contacts 310 may also be spaced apart in the second housing 200 in a third direction, with the stationary contacts 320 corresponding to the moving contacts 310. In this way, the plurality of moving contacts 310 and the plurality of stationary contacts 320 present a multi-layered structure in the second housing 200, allowing for multiple parallel structures to be implemented in multiple directions, resulting in more rational space utilization and avoiding excessive volume in any one direction.

[0103] In this embodiment, a plurality of movable contacts 310 are spaced apart along a second direction in the second housing 200, and each movable contact 310 is connected to a lead-out terminal 400. In other embodiments, the plurality of movable contacts 310 are arranged spaced apart along the second direction and a third direction, so that the plurality of movable contacts 310 have a double-layer structure. Each movable contact 310 is connected to a lead-out terminal 400, and the vertically arranged leads-out terminals 400 are connected to the circuit on the outside of the second housing 200 through a lead-out terminal 400.

[0104] See Figures 2 to 6 In this embodiment, at least a portion of the surface of the base plate 230 is perpendicular to a third direction. Thus, a plurality of moving contacts 310 are spaced apart in the second housing 200 along the second direction, and the moving contacts 310 are placed perpendicular to the base plate 230 and extend along the first direction, so that the moving contacts 310 close or open with the stationary contacts 320 along the second direction.

[0105] See Figures 2 to 5In one embodiment, the number of leads 400 is greater than or equal to the number of moving contacts 310. In this embodiment, the number of leads 400 is equal to the number of moving contacts 310. Each moving spring 311 is connected to a lead 400, and the moving spring 311 is connected to the circuit through the lead 400. Of course, in other embodiments of this application, the number of leads 400 may also be greater than the number of moving contacts 310. When multiple moving contacts 310 and multiple stationary contacts 320 present a multi-layer structure in the second housing 200, the leads 400 arranged vertically are connected to the circuit through a lead 400 on the outside of the second housing 200.

[0106] See Figure 5 In one embodiment, the movable spring 311 includes a fixed body (not shown) and multiple flow-guiding branches 3111. The multiple flow-guiding branches 3111 are spaced apart on the fixed body along a third direction and extend along a first direction. There are multiple movable contacts 312 and multiple stationary contacts 321, which are correspondingly arranged. Each flow-guiding branch 3111 is provided with one movable contact 312. In this way, each movable spring 311 is connected to multiple movable contacts 312 through multiple flow-guiding branches 3111, so that multiple movable contacts 312 can be closed or opened simultaneously with multiple stationary contacts 321, which increases the current-carrying capacity of the relay 10 and helps to reduce temperature rise.

[0107] In this embodiment, there are four flow guide branches 3111, spaced apart along a third direction. There are also four moving contacts 312 and four stationary contacts 321. Each flow guide branch 3111 has one moving contact 312, and the moving contacts 312 and stationary contacts 321 are arranged in a one-to-one correspondence. Of course, in other embodiments of this application, the number of flow guide branches 3111 can be other than the number of moving contacts 312 and stationary contacts 321.

[0108] See Figures 1 to 5 In one embodiment, the lead-out end 400 further includes a connecting body 410 and a lead-out body 420. The connecting body 410 is located in the installation space, and the lead-out body 420 extends through the first housing 100 and / or the second housing 200. The lead-out body 420 extends along a first direction, or it has a bent portion 421 that bends along a second direction. The lead-out body 420 is sheet-like, or it is bent. The connecting body 410 is the main component that connects the lead-out end 400 to the movable spring 311, and the lead-out body 420 is the component through which the lead-out end 400 extends through the second housing 200. Optionally, the lead-out body 420 and the connecting body 410 are an integral structure.

[0109] The connecting body 410 is located within the second housing 200. One side of the connecting body 410 is riveted to the movable spring 311, and the other side is connected to the lead-out body 420. The lead-out body 420 extends through the side plate 240 of the second housing 200 to connect external wires. Furthermore, the height of the connecting body 410 extends along a third direction, allowing it to stand upright. The lead-out body 420 can be sheet-like, meaning its overall height extends along a third direction. Alternatively, a portion of its height can extend along a third direction, allowing it to be bent. Thus, the lead-out body 420 extends upright through the second housing 200, and bends on the outside of the second housing 200 to facilitate the connection of external wires.

[0110] See Figures 1 to 5 , Figure 8 and Figure 9 In one embodiment, the relay 10 includes at least two leads 400. A first positioning structure 210 and a second positioning structure 600 are connected to the at least two leads 400 to position them, thereby positioning at least the contact gap of the contact assembly 300. The at least two leads 400 can be positioned by the first positioning structure 210 and the second positioning structure 600 to improve the assembly accuracy of the leads 400. Simultaneously, it can reduce the relative mating position between the leads 400 and the second housing 200. Thus, the first positioning structure 210 and the second positioning structure 600 can improve the positioning reliability of the leads 400, ensure accurate contact gap, improve the reliability of the contact gap, avoid affecting the closing or opening of the contacts, and thus ensure the performance of the relay 10.

[0111] See Figures 1 to 5 , Figure 8 and Figure 9 In one embodiment of this application, the number of second positioning structures 600 is one, and one second positioning structure 600 simultaneously connects at least two leads 400. This embodiment can use a first positioning structure 210 and one second positioning structure 600 to simultaneously connect at least two leads 400. In this way, at least two leads 400 can be positioned using the same first positioning structure 210 and second positioning structure 600, thereby improving the positioning accuracy of at least two leads 400. Simultaneously, it can reduce the number of parts, improve assembly efficiency, and provide better positioning accuracy for the relative positions between at least two leads 400.

[0112] Of course, in other embodiments of this application, the number of second positioning structures 600 is at least two, and each second positioning structure 600 is connected to at least one lead-out end 400. That is, at least two second positioning structures 600 can be used to connect at least two lead-out ends 400 respectively to achieve positioning of at least two lead-out ends 400. For example, at least one second positioning structure 600 can be used on each side to connect at least one lead-out end 400.

[0113] See Figure 3 , Figure 4 , Figure 6 , Figure 7 , Figure 12 In one embodiment, the number of first positioning structures 210 is equal to the number of leads 400, and each first positioning structure 210 positions one lead 400. Figure 12 for Figure 3 The diagram shows a top view of the relay 10. A first positioning structure 210 is integrated onto the base plate 230 of the second housing 200. Each first positioning structure 210 can position one lead-out terminal 400, improving the accuracy of the lead-out terminal 400 positioning. Of course, in other embodiments of this application, the number of first positioning structures 210 can also be one. The first positioning structure 210 positions the lead-out terminal 400 through multiple first mounting members 211. The multiple first mounting members 211 are integrated into one unit via a support plate and form a single structure with the base plate 230.

[0114] See Figures 1 to 5 , Figure 8 and Figure 9 In one embodiment of this application, at least two leads 400 extend through the first housing 100 and / or the second housing 200 on opposite sides. That is, at least two leads 400 extend out of the second housing 200 on both sides in a first direction, so that at least two leads 400 are respectively located on both sides of the relay 10, providing space for connecting wires to the leads 400.

[0115] See Figures 1 to 5 , Figure 8 and Figure 9 In this embodiment, there are four leads 400, which extend through the second housing 200 along a first direction. Two leads 400 extend from the front of the second housing 200, and the other two extend from the rear. There is one second positioning structure 600, which connects all four leads 400. Thus, by cooperating with the first positioning structure 210 on the second housing 200, the two front leads 400 and the two rear leads 400 can be positioned simultaneously, ensuring the positioning accuracy of the four leads 400.

[0116] Of course, the number of second positioning structures 600 can also be two, with each second positioning structure 600 simultaneously connecting two leads 400. For example, one second positioning structure 600 connects to the two leads 400 on the front side, and the other second positioning structure 600 connects to the two leads 400 on the rear side. Alternatively, the number of second positioning structures 600 can be four, with each second positioning structure 600 connecting to one lead 400. In other embodiments of this application, the number of leads 400 can also be five, six, or other numbers. One second positioning structure 600 can connect all the leads 400, or one second positioning structure 600 can connect multiple leads 400 on the same side, or each second positioning structure 600 can connect to one lead 400.

[0117] Of course, in another embodiment of this application, at least two leads 400 extend through the first housing 100 and / or the second housing 200 on the same side. That is, at least two leads 400 extend from the same side of the second housing 200. Exemplarily, at least two leads 400 may extend through the side plate 240 on the front or rear side of the second housing 200. In this case, a second positioning structure 600 can be used to connect all or part of the leads 400 to achieve positioning of the leads 400.

[0118] See Figure 2 and Figure 7 In one embodiment, the second positioning structure 600 is located in the installation space and is positioned directly opposite the first positioning structure 210. That is, the second positioning structure 600 is fixedly installed in the second housing 200. The second positioning structure 600 positions the lead-out end 400 on the inner side of the second housing 200 to improve the assembly accuracy of the lead-out end 400. Simultaneously, the second positioning structure 600 is also positioned close to the moving contact 312 and the stationary contact 321 to ensure accurate gap between the moving contact 312 and the stationary contact 321, thereby improving the reliability of the contact gap and ensuring the performance of the relay 10.

[0119] Of course, in other embodiments of this application, the second positioning structure 600 is located outside the mounting space. That is, the second positioning structure 600 is fixedly installed outside the second housing 200, and the second positioning structure 600 positions the lead-out end 400 outside the second housing 200. In this way, the second positioning structure 600 can also achieve the positioning of the lead-out end 400, thereby improving the assembly accuracy of the lead-out end 400.

[0120] It is worth noting that the second positioning structure 600 is located on the outside of the second housing 200, and its structure and connection principle with the lead-out end 400 are essentially the same as those of the second positioning structure 600 located on the inside of the second housing 200. The following description will only take the second positioning structure 600 located on the inside of the second housing 200 as an example, and the second positioning structure 600 located on the outside of the second housing 200 will not be described again.

[0121] See Figure 2 , Figure 8 , Figure 9 , Figure 13 and Figure 14 In one embodiment, the first positioning structure 210 and the second positioning structure 600 are disposed on both sides of the lead-out end 400 along a third direction and are positioned and connected to the lead-out end 400. Figure 13 for Figure 8 The cross-sectional view of relay 10 shown at point AA. Figure 14 for Figure 8 The diagram shows a cross-sectional view of the relay 10 at point BB. A first positioning structure 210 is located below the lead-out terminal 400, and a second positioning structure 600 is located above the lead-out terminal 400. The first positioning structure 210 and the second positioning structure 600 can be connected to the lead-out terminal 400 in the vertical direction respectively to position the lead-out terminal 400 and improve the accuracy of the lead-out terminal 400 positioning. Of course, in other embodiments of this application, only the first positioning structure 210 or the second positioning structure 600 may be used to position the lead-out terminal 400.

[0122] The assembly of the first positioning structure 210, the second positioning structure 600, the lead-out end 400 and the second housing 200 is not restricted in principle. Two possible assembly methods are introduced below, but the assembly methods are not limited to the following and can also be other.

[0123] One assembly method is as follows: During assembly, the lead-out end 400 is inserted into the first positioning structure 210 on the second housing 200, and the lead-out end 400 is connected to the moving spring 311. Then, the upper second positioning structure 600 is installed onto the lower first positioning structure 210, and the second positioning structure 600 is connected to the first positioning structure 210 to fix the second positioning structure 600 to the second housing 200. In this way, the assembly of the first positioning structure 210, the second positioning structure 600, the lead-out end 400, and the second housing 200 is achieved.

[0124] Another assembly method is as follows: During assembly, the lead-out end 400 is inserted into the upper second positioning structure 600, and the lead-out end 400 is connected to the moving spring 311. Subsequently, the second positioning structure 600, the moving contact 310, the stationary contact 320, and the lead-out end 400 are installed into the second housing 200, and the lead-out end 400 is positioned and installed with the first positioning structure 210. Then, the second positioning structure 600 is connected to the first positioning structure 210 to fix the second positioning structure 600 onto the second housing 200. In this way, the assembly of the first positioning structure 210, the second positioning structure 600, the lead-out end 400, and the second housing 200 is achieved.

[0125] See Figures 2 to 5 In one embodiment, the first positioning structure 210 and the second positioning structure 600 are assembled with the lead-out end 400 along a third direction. In this way, the first positioning structure 210 and the second positioning structure 600 can clamp and position the area of ​​the lead-out end 400 near the moving contact 312, improving the positioning accuracy of the lead-out end 400 and ensuring the positioning effect. Simultaneously, it also enables automated insertion of the lead-out end 400 with the first positioning structure 210 and the second positioning structure 600, facilitating assembly and improving assembly efficiency.

[0126] See Figures 2 to 11 In one embodiment, the first positioning structure 210 includes a first mounting member 211, and the second positioning structure 600 includes a support body 610 and a second mounting member 620. The first mounting member 211 forms a first mounting groove 2111, and the second mounting member 620 is disposed on the support body 610 and forms a second mounting groove 621. The lead-out end 400 has a first mating protrusion 430 and a second mating protrusion 440 on its two sides along a third direction, respectively. The first mating protrusion 430 is installed in the first mounting groove 2111, and the second mating protrusion 440 is installed in the second mounting groove 621.

[0127] The first mounting member 211 is disposed on the bottom plate 230 of the second housing 200 and protrudes along the third direction. The first mounting member 211 has a recessed first mounting groove 2111. The bottom of the lead-out end 400 along the third direction has a first mating protrusion 430. When the lead-out end 400 is installed on the first positioning structure 210, the first mating protrusion 430 is inserted into the first mounting groove 2111 along the third direction. At this time, the first mounting member 211 can position the bottom of the lead-out end 400.

[0128] The supporting body 610 is the main plate of the second positioning structure 600. The second mounting member 620 is disposed on the supporting body 610 and protrudes along the third direction. The second mounting member 620 has a recessed second mounting groove 621. The top of the lead-out end 400 along the third direction has a second mating protrusion 440. When the lead-out end 400 is installed on the second positioning structure 600, the second mating protrusion 440 can be inserted into the second mounting groove 621 along the third direction. At this time, the second mounting member 620 can position the top of the lead-out end 400.

[0129] When the lead-out end 400 engages with the first positioning structure 210 and the second positioning structure 600, the lead-out end 400 can be positioned and engaged with the first mounting member 211 through the first engaging protrusion 430, and with the second mounting member 620 through the second mounting protrusion. The first mounting member 211 and the second mounting member 620 can position the lead-out end 400 in the second direction, limiting its displacement. Simultaneously, the first mounting member 211 and the second mounting member 620 are located on the upper and lower sides of the lead-out end 400, enabling them to limit the lead-out end 400 in the third direction. Thus, the first mounting member 211 and the second mounting member 620 can position the lead-out end 400 in both the second and third directions, achieving accurate positioning of the lead-out end 400.

[0130] See Figure 10 and Figure 11 In one embodiment, there are multiple second mounting members 620, which are spaced apart, with each second mounting member 620 corresponding to one lead-out end 400. That is, the number of second mounting members 620 is equal to the number of first positioning structures 210. In this way, each second mounting member 620 is corresponding to one first positioning structure 210 to position one lead-out end 400, thereby improving the accuracy of the lead-out end 400 positioning.

[0131] See Figures 2 to 5 , Figure 12 In one embodiment, the first mating protrusion 430 and / or the second mating protrusion 440 at least partially overlap with the stationary contact 321 of the contact assembly 300 in the third direction. Thus, the first mounting member 211 and the second mounting member 620 can support the lead-out end 400 in the area where the moving contact 312 contacts the stationary contact 321, reducing the shaking of the lead-out end 400 when the moving contact 312 and the stationary contact 321 close or open, and improving the positioning accuracy of the lead-out end 400 by the first positioning structure 210 and the second positioning structure 600.

[0132] See Figure 5In one embodiment, the first mating protrusion 430 and the second mating protrusion 440 extend in opposite directions along a third direction. That is, the projections of the first mating protrusion 430 and the second mating protrusion 440 in the third direction overlap. In this way, the lead-out end 400 can be connected to the first positioning structure 210 and the second positioning structure 600 at the same position, reducing the shaking of the lead-out end 400 when the moving contact 312 and the stationary contact 321 are closed or opened, and improving the positioning accuracy of the first positioning structure 210 and the second positioning structure 600 for the lead-out end 400.

[0133] See Figure 5 In one embodiment, the number of first mating protrusions 430 is one or more, and multiple first mating protrusions 430 are installed in a first mounting groove 2111 or respectively installed in a first mounting groove 2111. In this embodiment, the number of first mating protrusions 430 is one, and one first mating protrusion 430 is installed in the first mounting groove 2111, and the lead-out end 400 is positioned by the first mounting member 211. Of course, in other embodiments of this application, the number of first mating protrusions 430 may also be multiple, and multiple first mating protrusions 430 are spaced apart along a first direction, and multiple first mating protrusions 430 are installed in a first mounting groove 2111 or respectively installed in corresponding first mounting grooves 2111, so as to achieve the positioning of the lead-out end 400 by the first mounting member 211.

[0134] See Figure 5 In one embodiment, the number of second mating protrusions 440 is one or more, and multiple second mating protrusions 440 are installed in a second mounting groove 621 or respectively installed in a second mounting groove 621. In this embodiment, the number of second mating protrusions 440 is one, and one second mating protrusion 440 is installed in the second mounting groove 621, and the positioning of the lead-out end 400 is achieved by the second mounting member 620. Of course, in other embodiments of this application, the number of second mating protrusions 440 may also be multiple, and multiple second mating protrusions 440 are spaced apart along the second direction, and multiple second mating protrusions 440 are installed in a second mounting groove 621 or respectively installed in corresponding second mounting grooves 621, so as to achieve the positioning of the lead-out end 400 by the second mounting member 620.

[0135] See Figure 2 , Figures 9 to 11 In one embodiment, the first housing 100 and / or the second housing 200 have a first mounting position 241, and the second positioning structure 600 further includes a support baffle 630. The support baffle 630 is located at the edge of the support body 610 and extends along a third direction. The support baffle 630 has a second mounting position 631, and the lead-out end 400 extends through the first mounting position 241 and the second mounting position 631 along a first direction.

[0136] A support baffle 630 is disposed on the edge of the support body 610 and protrudes in a third direction, forming a box-like structure with the support body 610. After the second positioning structure 600 is installed on the second housing 200, the support baffle 630 can abut against the side plate 240 of the second housing 200. Optionally, the support baffle 630 and the support body 610 are an integral structure. Of course, in other embodiments of this application, the support baffle 630 and the support body 610 can also be disposed separately.

[0137] The second mounting position 631 penetrates the support baffle 630 along the first direction and has a certain depth along the third direction to form an open groove on the support baffle 630, which is the second mounting position 631. After the second positioning structure 600 is installed on the second housing 200, the second mounting position 631 can communicate with the installation space to connect the outer and inner installation spaces of the second housing 200. The lead-out end 400 can extend through the first mounting position 241 and the second mounting position 631. At this time, the lead-out end 400 is perpendicular to the bottom plate 230 and the support body 610. In this embodiment, the support baffle 630 is provided on three sides of the support body 610. Of course, in other embodiments of this application, the support baffle 630 can also be provided on opposite sides of the support body 610.

[0138] See Figures 4 to 7 , Figures 10 to 14 In one embodiment, the first positioning structure 210 further includes a first positioning part 212, and the second positioning structure 600 further includes a second positioning part 640. The surface of the lead-out end 400 facing the second direction has a third positioning part 450 and a fourth positioning part 460. The third positioning part 450 is correspondingly disposed and positioned in the first positioning part 212, and the fourth positioning part 460 is correspondingly disposed and installed in the second positioning part 640.

[0139] The first positioning part 212 and the second positioning part 640 are disposed on the side facing the lead-out end 400. The side of the lead-out end 400 has a third positioning part 450 and a fourth positioning part 460. When the lead-out end 400 is inserted into the first positioning structure 210 in a third direction, the third positioning part 450 and the first positioning part 212 are positioned opposite each other, and the lead-out end 400 can move along the first positioning part 212 through the third positioning part 450 to guide and limit the assembly of the lead-out end 400 and the first positioning structure 210. When the first mating protrusion 430 of the lead-out end 400 is inserted into the first mounting groove 2111 of the first mounting member 211, the third positioning part 450 and the first positioning part 212 are positioned and engaged. Through the assembly of the third positioning part 450 and the first positioning part 212, the first positioning structure 210 can position the lead-out end 400 to limit the lead-out end 400 in the second direction and the third direction.

[0140] When the second positioning structure 600 is inserted into the lead-out end 400 along a third direction, the second positioning part 640 and the fourth positioning part 460 are positioned opposite each other, and the second positioning structure 600 can move along the fourth positioning part 460 via the second positioning part 640 to guide and limit the assembly of the lead-out end 400 and the second positioning structure 600. When the second mating protrusion 440 of the lead-out end 400 is inserted into the second mounting groove 621 of the second mounting member 620, the second positioning part 640 and the fourth positioning part 460 are positioned and engaged. Through the assembly of the second positioning part 640 and the fourth positioning part 460, the second positioning structure 600 can position the lead-out end 400 to limit the lead-out end 400 in the second direction and the third direction.

[0141] In this embodiment, the first positioning part 212 is disposed on the side plate 240 of the second housing 200 and located on the inner wall of the first mounting position 241, and the second positioning part 640 is disposed on the support baffle 630 and located on the inner wall of the second mounting position 631. Thus, the first positioning part 212 and the second positioning part 640 can be positioned towards the side of the lead-out end 400. Of course, in other embodiments of this application, the first positioning part 212 may also be disposed on the inner wall of the first mounting member 211, and the second positioning part 640 may also be disposed on the inner wall of the second mounting member 620.

[0142] In this embodiment, the first positioning part 212 and the second positioning part 640 are positioning grooves, and the third positioning part 450 and the fourth positioning part 460 are positioning protrusions. That is, positioning protrusions are provided on the side of the lead-out end 400, and positioning grooves are provided on the inner walls of the first mounting position 241 and the second mounting position 631. When the lead-out end 400 is assembled with the first positioning structure 210 and the second positioning structure 600 along a third direction, the positioning protrusions of the lead-out end 400 can respectively cooperate with the positioning grooves of the second housing 200 and the second positioning structure 600 to achieve positioning of the lead-out end 400. Of course, in other embodiments of this application, the first positioning part 212 and the second positioning part 640 can also be positioning protrusions, and the third positioning part 450 and the fourth positioning part 460 can be positioning grooves. Optionally, the first positioning part 212 and the third positioning part 450 are interference fits, and the second positioning part 640 and the fourth positioning part 460 are interference fits.

[0143] See Figures 5 to 7 , Figure 13In one embodiment, the first positioning structure 210 further includes a snap-fit ​​protrusion 213, and the edge of the lead-out end 400 also has a recessed portion 470 recessed along a third direction. The snap-fit ​​protrusion 213 is correspondingly disposed with the recessed portion 470 and is snapped into the recessed portion 470. The snap-fit ​​protrusion 213 is disposed on the bottom plate 230 of the second housing 200 and protrudes along a third direction. The side of the lead-out end 400 facing the bottom plate 230 has a recessed portion 470. After the lead-out end 400 is installed into the first positioning structure 210 along the third direction, the recessed portion 470 of the lead-out end 400 can be snapped into the snap-fit ​​protrusion 213, and the snap-fit ​​protrusion 213 can limit the lead-out end 400 along the first direction. In this embodiment, the snap-fit ​​protrusion 213 is disposed on the bottom wall of the first mounting position 241. Of course, in other embodiments of this application, the snap-fit ​​protrusion 213 may also have a preset distance from the second mounting position 631.

[0144] See Figure 6 , Figure 7 , Figure 10 and Figure 11 In one embodiment, the first positioning structure 210 further includes a first positioning member 214, and the second positioning structure 600 further includes a second positioning member 650 disposed on the support body 610. The second positioning member 650 is correspondingly disposed and positioned to the first positioning member 214. The first positioning member 214 is disposed on the surface of the base plate 230 facing the second positioning structure 600, and the second positioning member 650 is disposed on the surface of the support body 610 facing the base plate 230. Furthermore, the first positioning member 214 and the second positioning member 650 are correspondingly disposed.

[0145] When the second positioning structure 600 is installed on the second housing 200, the second positioning member 650 corresponds to the first positioning member 214, so that the second mounting member 620 corresponds to the second mating protrusion 440 of the lead-out end 400, and the fourth positioning part 460 corresponds to the second positioning part 640. When the second positioning structure 600 is installed on the second housing 200 along a third direction, the second positioning member 650 is gradually inserted into the first positioning member 214, so that the second mounting member 620 is accurately inserted into the second mating protrusion 440, and the fourth positioning part 460 is accurately positioned and engaged with the second positioning part 640. In this way, through the engagement of the first positioning member 214 and the second positioning member 650, the second positioning structure 600 can be accurately positioned and assembled with the lead-out end 400, improving the positioning accuracy of the lead-out end 400.

[0146] In this embodiment, the first positioning member 214 is a positioning post with a positioning hole, and the second positioning member 650 is a positioning post with a positioning protrusion. When the second positioning structure 600 is installed on the first positioning protrusion, the positioning post with the positioning protrusion can be inserted into the positioning post with the positioning hole to achieve accurate positioning. Of course, in other embodiments of this application, the first positioning member 214 can also be a positioning post with a positioning protrusion, and the second positioning member 650 can be a positioning post with a positioning hole. Optionally, there can be multiple first positioning members 214 and multiple second positioning members 650. By using multiple first positioning members 214 and multiple second positioning members 650, accurate positioning of the second positioning structure 600 and the second housing 200 can be achieved, thereby improving the positioning accuracy of the lead-out end 400.

[0147] See Figure 6 , Figure 7 , Figure 10 and Figure 11 In one embodiment, the first positioning structure 210 further includes a first fixing part 215, and the second positioning structure 600 further includes a second fixing part 660 disposed on the support body 610. The first fixing part 215 and the second fixing part 660 are correspondingly disposed. The relay 10 further includes a fastener 700, which connects the first fixing part 215 and the second fixing part 660. The fastener 700 connects the first fixing part 215 and the second fixing part 660 by means of threaded connection, riveting or adhesive connection.

[0148] The first fixing part 215 is disposed on the surface of the base plate 230 facing the second positioning structure 600, and the second fixing part 660 is disposed on the surface of the support body 610 facing the base plate 230. The first fixing part 215 and the second fixing part 660 are correspondingly disposed. After the second positioning structure 600 and the second housing 200 are assembled with the second positioning member 214, the first fixing part 215 and the second fixing part 660 are correspondingly disposed. The fastener 700 passes through the second fixing part 660 and is installed into the first fixing part 215, and fixes the first fixing part 215 and the second fixing part 660, thereby realizing the reliable fixing of the second positioning structure 600 to the second housing 200, so that the second positioning structure 600 accurately positions the lead-out end 400.

[0149] In this embodiment, both the first fixing part 215 and the second fixing part 660 are fixing posts with fixing holes, and the fastener 700 is a rivet. After the fastener 700 is installed on the fixing post with the fixing hole, it can rivet the two fixing posts together, thereby fixing the second positioning structure 600 and the second housing 200. Of course, in other embodiments of this application, the fastener 700 can also be a screw, using screw threads to connect the two fixing posts, or injecting adhesive into the fixing hole to bond the fixing post and the fastener 700 together, thereby fixing the two fixing posts. Optionally, there are multiple first fixing parts 215 and multiple second fixing parts 660. By using multiple first fixing parts 215 and multiple second fixing parts 660, the second positioning structure 600 and the second housing 200 can be reliably fixed, thereby improving the positioning accuracy of the lead-out end 400.

[0150] See 2. Figure 8 and Figure 9 In one embodiment, the support body 610 further has multiple cutouts 611 that connect to the mounting space to expose the contact portions of the contact components 300 within the mounting space. The cutouts 611 penetrate the support body 610 along a third direction and are positioned corresponding to the moving contact 312 and the stationary contact 321. After the second positioning structure 600 is installed on the second housing 200 and, together with the first positioning structure 210, positions the lead-out end 400, contact detection can be performed on the moving contact 312 and the stationary contact 321 through the cutouts 611 without removing the second positioning structure 600. Thus, the second positioning structure 600 can achieve positioning of the lead-out end 400 while also facilitating contact detection.

[0151] The relay 10 of this application has a first positioning structure 210 in the first housing 100 and / or the second housing 200. The first positioning structure 210 can be connected to the lead-out terminal 400 to position the lead-out terminal 400, so that the lead-out terminal 400 is accurately positioned relative to the first housing 100 and the second housing 200, thereby improving the assembly accuracy of the lead-out terminal 400, thereby at least positioning the contact gap in the contact assembly 300, improving the reliability of the contact gap, and thus ensuring the performance of the relay 10.

[0152] Furthermore, the relay 10 can use a combination of a first positioning structure 210 and a second positioning structure 600 to position the lead-out terminal 400. The first positioning structure 210 and the second positioning structure 600 are located at both ends of the lead-out terminal 400. The first positioning structure 210 is integrated into the base plate 230 of the second housing 200, making the lead-out terminal 400 accurately positioned relative to the first housing 100 and the second housing 200, thereby improving the assembly accuracy of the lead-out terminal 400. This at least positions the contact gap of the contact assembly 300, improving the reliability of the contact gap and ensuring the performance of the relay 10. Simultaneously, after the lead-out terminal 400 is positioned using the first positioning structure 210 and the second positioning structure 600, the lead-out terminal 400 only extends through the first mounting position 241 of the side plate 240, eliminating the need for the inner wall of the first mounting position 241 to position the lead-out terminal 400. In this way, even if the demolding chamfer at the first mounting position 241 is large, it will not affect the positioning of the lead-out end 400, thus ensuring the assembly accuracy of the lead-out end 400 and ensuring the reliable gap between the moving contact 312 and the stationary contact 321.

[0153] Furthermore, the first positioning structure 210 and the second positioning structure 600 can provide positioning support for the lead-out end 400 in the contact direction between the moving contact 310 and the stationary contact 320. When the reaction force generated when the moving contact 310 and the stationary contact 320 close or open acts on the lead-out end 400, due to the positioning of the lead-out end 400 by the first positioning structure 210 and the second positioning structure 600, and the positioning of the first positioning structure 210 and the second positioning structure 600 by the second housing 200 through the base plate 230, the second housing 200 can provide sufficient support for the first positioning structure 210 and the second positioning structure 600, thereby providing sufficient support for the lead-out end 400. In this way, even if the first mounting position 241 on the side plate 240 is deep, the side plate 240 does not need to support the lead-out end 400, thus avoiding deformation of the side plate 240 and ensuring the structural strength of the second housing 200. Furthermore, the first positioning structure 210 and the second positioning structure 600 can provide positioning accuracy and reliable support for the lead-out end 400 in the contact direction, thereby achieving accurate positioning of the lead-out end 400 and ensuring the reliability of the contact gap.

[0154] 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.

[0155] 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: First shell; The second housing covers the first housing and together with the first housing forms an installation space; A contact component is disposed in the mounting space, and the contact component extends in the mounting space along a first direction; as well as One end of the lead-out end is disposed in the installation space and electrically connected to the contact component, and the other end extends through the first housing and / or the second housing in a first direction; The first housing and / or the second housing have a first positioning structure, which is connected to the lead-out end to position the lead-out end, thereby positioning at least the contact gap of the contact assembly.

2. The relay according to claim 1, characterized in that, The second housing includes a bottom plate and a plurality of side plates, wherein the plurality of side plates are disposed on the bottom plate; The side plate has a first mounting position, which is an open groove on the side of the side plate away from the bottom plate. The lead-out end is perpendicular to the bottom plate and is installed through the first mounting position to extend out of the side plate.

3. The relay according to claim 1, characterized in that, The first housing has a first positioning structure on its surface facing the second housing, and the second housing also has a first positioning structure on its surface facing the first housing. The two first positioning structures are arranged opposite to each other and are simultaneously connected to the lead-out end.

4. The relay according to claim 1, characterized in that, The lead-out end further includes a connecting body and a lead-out body, the connecting body being located in the installation space, and the lead-out body extending through the first housing and / or the second housing; The lead-out body extends along the first direction, or the lead-out body has a bent portion that bends along the second direction.

5. The relay according to claim 1, characterized in that, The relay further includes a second positioning structure, wherein one of the first housing and the second housing has the first positioning structure, and the other housing is provided with the second positioning structure between itself and the lead-out terminal, and the first positioning structure and the second positioning structure are simultaneously connected to the lead-out terminal.

6. The relay according to claim 5, characterized in that, The second positioning structure is located in the installation space and is positioned opposite the first positioning structure, or the second positioning structure is located outside the installation space.

7. The relay according to claim 5, characterized in that, The relay includes at least two leads, and the first positioning structure and the second positioning structure are connected to the at least two leads to position the at least two leads; Wherein, at least two of the leads extend through the first housing and / or the second housing on the same side, or at least two of the leads extend through the first housing and / or the second housing on opposite sides.

8. The relay according to claim 5, characterized in that, The contact direction of the contact component is denoted as the second direction, and the direction perpendicular to the first and second directions is denoted as the third direction. The first positioning structure and the second positioning structure are disposed on both sides of the lead-out end along a third direction and are positioned and connected to the lead-out end.

9. The relay according to claim 5, characterized in that, The first positioning structure and the second positioning structure are assembled with the lead-out end along a third direction; And / or, the second positioning structure is fixedly connected to the first housing or the second housing.

10. The relay according to claim 5, characterized in that, The number of the second positioning structure is one, and one second positioning structure is connected to at least two of the leads at the same time; or, the number of the second positioning structure is at least two, and each second positioning structure is connected to at least one of the leads.

11. The relay according to claim 5, characterized in that, The number of the first positioning structures is equal to the number of the leads, and each first positioning structure positions one of the leads.

12. The relay according to any one of claims 5 to 11, characterized in that, The first positioning structure includes a first mounting component, and the second positioning structure includes a support body and a second mounting component. The first mounting component forms a first mounting groove, and the second mounting component is disposed on the support body and forms a second mounting groove. The lead-out end has a first mating protrusion and a second mating protrusion on its two sides along the third direction, respectively. The first mating protrusion is installed in the first mounting groove, and the second mating protrusion is installed in the second mounting groove.

13. The relay according to claim 12, characterized in that, The first mating protrusion and / or the second mating protrusion at least partially overlap with the stationary contact of the contact component in the third direction; And / or, the first mating protrusion and the second mating protrusion extend in opposite directions along a third direction; And / or, the number of the first mating protrusions is one or more, and multiple first mating protrusions are mounted in one first mounting groove or are respectively mounted in one first mounting groove; And / or, the number of the second mating protrusions is one or more, and multiple second mating protrusions are mounted in a second mounting groove or are respectively mounted in a second mounting groove.

14. The relay of claim 12, wherein, The first housing and / or the second housing have a first mounting position, and the second positioning structure further includes a support baffle located at the edge of the support body and extending in a third direction. The support baffle has a second mounting position, and the lead-out end extends through the first mounting position and the second mounting position in a first direction.

15. The relay according to claim 12, characterized in that, The first positioning structure further includes a first positioning part, the second positioning structure further includes a second positioning part, and the surface of the lead-out end facing the second direction has a third positioning part and a fourth positioning part; The third positioning part is disposed corresponding to the first positioning part and is positioned and installed in the first positioning part; the fourth positioning part is disposed corresponding to the second positioning part and is installed in the second positioning part.

16. The relay of claim 12, wherein, The first positioning structure further includes a snap-fit ​​protrusion, and the edge of the lead-out end also has a recessed portion recessed along a third direction. The snap-fit ​​protrusion is correspondingly provided with the recessed portion and is snapped into the recessed portion.

17. The relay of claim 12, wherein, The first positioning structure further includes a first positioning element, and the second positioning structure further includes a second positioning element disposed on the support body. The second positioning element is disposed corresponding to the first positioning element and is positioned and connected. And / or, the first positioning structure further includes a first fixing part, and the second positioning structure further includes a second fixing part disposed on the support body. The first fixing part and the second fixing part are disposed correspondingly. The relay further includes a fastener. The fastener connects the first fixing part and the second fixing part. The fastener connects the first fixing part and the second fixing part by means of threaded connection, riveting or adhesive connection.

18. The relay of claim 12, wherein, The supporting body also has multiple hollowed-out sections that connect to the installation space to expose the contact parts of the contact components in the installation space.

19. The relay according to any one of claims 5 to 11, characterized in that, The contact assembly includes a moving contact and a stationary contact. The lead-out end is connected to the moving contact and / or the stationary contact. The first positioning structure and the second positioning structure can support the lead-out end in the contact direction between the moving contact and the stationary contact.

20. The relay of claim 19, wherein, The contact assembly includes multiple moving contacts and multiple stationary contacts. The multiple moving contacts are spaced apart in the installation space along a second direction. Each stationary contact is arranged opposite to a corresponding moving contact. The moving contact moves along the second direction to close or open with the corresponding stationary contact.

21. The relay of claim 20, wherein, The moving contact includes a moving spring and a moving contact disposed on the moving spring. The moving spring is movably disposed in the mounting space along a second direction. The stationary contact includes a stationary contact disposed in the mounting space and opposite to the moving contact. The moving spring moves along the second direction to close or open the moving contact with the stationary contact.

22. The relay of claim 21, wherein, The moving spring includes a fixed body and multiple flow guide branches. The multiple flow guide branches are spaced apart on the fixed body along a third direction and extend along a first direction. There are multiple moving contacts and multiple stationary contacts, and they are arranged accordingly. Each flow guide branch is provided with one moving contact.

Images