relay

Abstract

The application relates to a relay, comprising a shell, a contact assembly arranged in the shell, a lead-out end arranged in the shell and electrically connected with the contact assembly, one end of the lead-out end extending out of the shell, and a positioning member fixedly arranged in the shell and connected with the lead-out end to position the lead-out end, thereby positioning at least a contact gap of the contact assembly. Thus, the positioning member can position the lead-out end in the contact direction of the contact assembly, so that the positioning of the lead-out end relative to the shell is accurate, the assembly precision of the lead-out end is improved, at least the contact gap of the contact assembly is positioned, the reliability of the contact gap is improved, and the service performance of the relay is ensured.

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] case;

[0007] Contact components are disposed within the housing;

[0008] One end of the lead-out terminal is disposed within the housing and electrically connected to the contact assembly, while the other end extends through the housing; and

[0009] A positioning element is fixedly installed on the housing. The positioning element is connected to the lead-out end to position the lead-out end, thereby positioning at least the contact gap of the contact assembly.

[0010] In one embodiment of this application, the positioning member is located near the connection between the lead-out end and the contact component, and is used to position the side of the lead-out end near the contact component.

[0011] In one embodiment of this application, the positioning element is located inside the housing.

[0012] In one embodiment of this application, the relay includes at least two leads, and the positioning member connects to at least two leads to position at least two leads, thereby positioning at least the contact gap of the contact assembly.

[0013] In one embodiment of this application, at least two leads are disposed on the same side of the housing, and each positioning member is connected to at least two leads simultaneously, or each positioning member is connected to one lead.

[0014] In one embodiment of this application, at least two of the leads are disposed on opposite sides of the housing, and the positioning member connects at least two of the leads simultaneously, or at least one positioning member is used on each side to connect at least one of the leads.

[0015] In one embodiment of this application, the housing includes a bottom plate and a plurality of side plates, wherein the plurality of side plates are disposed on the bottom plate and together with the bottom plate form an installation space;

[0016] The side plate has a 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 mounting position to extend out of the side plate.

[0017] In one embodiment of this application, the base plate has a positioning component, and the positioning component positions the lead-out end within the housing by positioning assembly with the positioning component.

[0018] In one embodiment of this application, the extending direction of the contact component is referred to as the first direction, 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.

[0019] The positioning element is disposed on at least one side of the lead-out end along a third direction.

[0020] In one embodiment of this application, the positioning element includes two positioning frames, which are disposed on both sides of the lead-out end along a third direction and are positioned and connected to the lead-out end.

[0021] In one embodiment of this application, the two positioning frames are configured separately.

[0022] In one embodiment of this application, the positioning frame and the lead-out end are assembled along a third direction.

[0023] In one embodiment of this application, the positioning frame includes a positioning body and a mounting body disposed on the positioning body, the mounting body extending toward another positioning frame and connected to the mounting body of the other positioning frame;

[0024] The lead-out end is positioned and connected to the positioning body and / or the mounting body.

[0025] In one embodiment of this application, at least a portion of the edge of the positioning body protrudes from the outer peripheral surface of the mounting body, the positioning body has a first positioning portion, and the lead-out end has a second positioning portion facing the edge of the positioning body, the second positioning portion being mounted on the first positioning portion in a third direction.

[0026] In one embodiment of this application, the second positioning portion and the stationary contact of the contact component at least partially overlap in the third direction;

[0027] And / or, the second positioning part is disposed near the side plate of the housing;

[0028] And / or, the number of the second positioning parts is multiple, the multiple second positioning parts are arranged at intervals along the first direction, the number of the first positioning parts is equal to the number of the second positioning parts, and they are arranged accordingly.

[0029] In one embodiment of this application, the mounting body has a third positioning part, and the surface of the lead-out end facing the mounting body has a fourth positioning part, which is mounted on the third positioning part in a third direction.

[0030] In one embodiment of this application, at least a portion of the edge of the positioning body protrudes from the outer peripheral surface of the mounting body, and the positioning frame further includes a limiting body disposed on the edge of the mounting body. The limiting body is disposed opposite to the mounting body and forms a receiving groove with the mounting body. The receiving groove is used to receive the lead-out end.

[0031] And / or, at least a portion of the edge of the positioning body protrudes from the outer peripheral surface of the mounting body, the positioning frame further has a first guide portion, the first guide portion is disposed on the edge of the mounting body in a third direction, the housing has a second guide portion on the surface corresponding to the first guide portion, the first guide portion and the second guide portion guide and cooperate in a third direction to guide and limit the positioning frame to be installed on the housing;

[0032] And / or, the positioning frame further has a first mating part, the first mating part being disposed on the edge of the mounting body along a third direction, and the housing having a second mating part on the surface corresponding to the first mating part, the first mating part and the second mating part being mated and connected along a third direction, wherein the first mating part and the second mating part are riveted or bonded together.

[0033] In one embodiment of this application, one of the two positioning frames has a first positioning protrusion and the other has a first positioning groove opposite to the first positioning protrusion. The first positioning protrusion and the first positioning groove are positioned and engaged to position the two positioning frames.

[0034] And / or, the bottom wall of the housing has a second positioning protrusion, wherein one of the positioning frames has a second positioning groove opposite to the second positioning protrusion on the side facing the housing, the second positioning protrusion and the second positioning groove being positioned to position the positioning frame and the housing.

[0035] In one embodiment of this application, the positioning member is disposed on the side of the lead-out end away from the bottom plate of the housing, or the positioning member is disposed between the lead-out end and the bottom plate of the housing.

[0036] In one embodiment of this application, at least a portion of the bottom plate of the housing has a surface perpendicular to a third direction.

[0037] In one embodiment of this application, the lead-out end includes a connecting body and a lead-out body disposed in the connecting body. The connecting body is located in the housing and is electrically connected to the contact assembly. The lead-out body extends out through the housing.

[0038] The lead-out body is arranged in a sheet shape, or the lead-out body is arranged in a bent shape.

[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 positioning member is 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 housing 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 housing along a second direction. The stationary contact includes a stationary contact disposed in the housing 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 one embodiment of this application, the mounting body in the positioning member and the moving contact member are spaced apart along a first direction.

[0044] By adopting the above technical solution, this application has at least the following technical effects:

[0045] The relay of this application has a contact assembly housed within a housing, and a lead-out terminal housed within the housing. One end of the lead-out terminal is electrically connected to the contact assembly, while the other end extends through the housing. A positioning element connects to the lead-out terminal to position it. Thus, the positioning element can position the lead-out terminal at least in the contact direction of the contact assembly, ensuring accurate positioning of the lead-out terminal relative to the housing, improving the assembly precision of the lead-out terminal, and thereby positioning at least the contact gap of the contact assembly. This improves the reliability of the contact gap and ultimately guarantees the performance of the relay. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of a relay according to an embodiment of this application.

[0047] Figure 2 for Figure 1 The diagram shows a relay with its cover removed.

[0048] Figure 3 for Figure 2 The relay shown is shown in top view.

[0049] Figure 4 for Figure 2 The diagram shows the interaction of the contact components, leads, and positioning elements in the relay.

[0050] Figure 5 for Figure 4 The diagram shows the contact assembly mating with the lead-out terminal.

[0051] Figure 6 for Figure 2 The diagram shows a schematic of the housing in the relay.

[0052] Figure 7 for Figure 2 The diagram shows a positioning element in a relay from one perspective.

[0053] Figure 8 for Figure 7 The diagram shows the positioning element from another perspective.

[0054] Figure 9 for Figure 7 An exploded view of the positioning component is shown.

[0055] Figure 10 for Figure 2 The diagram shows a relay with the top positioning bracket removed.

[0056] Figure 11 for Figure 7 A schematic diagram of the positioning frame at the top of the positioning component shown.

[0057] Figure 12 for Figure 7 A schematic diagram of the positioning frame at the bottom of the positioning component shown.

[0058] Figure 13 for Figure 3 The relay shown is a cross-sectional view along the AA direction.

[0059] Figure 14 for Figure 3 The relay shown is a cross-sectional view along the BB direction.

[0060] Figure 15 for Figure 8 The top view of the positioning component shown.

[0061] Figure 16 for Figure 15 The locating element shown is a cross-sectional view along the CC direction.

[0062] Wherein: 10, relay; 100, housing; 110, base plate; 120, side plate; 121, mounting position; 130, first snap-fit ​​part; 140, second guide part; 150, second mating part; 160, second positioning protrusion; 200, contact assembly; 210, moving contact; 211, moving contact; 212, moving spring; 2121, flow guide branch; 220, stationary contact; 221, stationary contact; 300, lead-out end; 310, connecting body; 320 330. Lead-out main body; 340. Second positioning part; 400. Fourth positioning part; 410. Positioning component; 411. Positioning frame; 411. Positioning main body; 4111. First positioning part; 412. Mounting main body; 4121. Third positioning part; 413. Limiting main body; 414. First guide part; 415. First mating part; 416. First positioning protrusion; 417. First positioning groove; 418. Second positioning groove; 500. Cover plate; 510. Second snap-fit ​​part. Detailed Implementation

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] For this purpose, please refer to Figures 1 to 5 This application provides a relay 10. 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 of relay 10 with cover plate 500 removed. Figure 3 for Figure 2 The top view of relay 10 shown. Figure 4 for Figure 2 The diagram shows the interaction of the contact assembly 200, lead-out terminal 300, and positioning element 400 in the relay 10. Figure 5 for Figure 4 The diagram shows the contact assembly 200 mating with the lead-out terminal 300.

[0071] The relay 10 has a lead-out terminal 300 through which external wires are connected. The relay 10 of this application can achieve accurate positioning of the lead-out terminal 300, thereby improving the assembly precision of the lead-out terminal 300, 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.

[0072] See Figures 1 to 5 In one embodiment, the relay 10 includes a housing 100, a contact assembly 200, a lead-out terminal 300, and a positioning member 400. The contact assembly 200 is disposed within the housing 100. One end of the lead-out terminal 300 is disposed within the housing 100 and electrically connected to the contact assembly 200, while the other end extends through the housing 100. The positioning member 400 is fixedly mounted to the housing 100 and is connected to the lead-out terminal 300 to position the lead-out terminal 300, thereby positioning at least the contact gap of the contact assembly 200.

[0073] The housing 100 serves as the mounting base for the relay 10. The contact assembly 200 and the lead-out terminal 300 are housed within the housing 100. The housing 100 protects the contact assembly 200 and the lead-out terminal 300 to ensure the safe use of the relay 10. The contact assembly 200 is a spring-loaded structure for the relay 10. One end of the lead-out terminal 300 is electrically connected to the contact assembly 200, and the other end of the lead-out terminal 300 extends through the housing 100, such that part of the lead-out terminal 300 is located inside the housing 100, and part is located outside the housing 100.

[0074] Thus, the end of the lead 300 outside the housing 100 can be connected to a wire to connect the relay 10 to the circuit. The contact component 200 can close or open to achieve the closing or opening of the relay 10. When the contact component 200 is closed, the relay 10 is in the closed state, thereby conducting the circuit; when the contact component 200 is open, the relay 10 is in the open state, thereby breaking the circuit.

[0075] Understandably, the lead-out terminal is directly connected to the contact assembly, and the positioning accuracy of the lead-out terminal directly affects the contact gap in the contact assembly. If the positioning reliability of the lead-out terminal is poor, it will affect the contact gap, and thus affect the closing or opening of the contacts. Therefore, the relay 10 of this application also includes a positioning element 400, which can be connected to the lead-out terminal 300. In this way, the lead-out terminal 300 can be positioned by the positioning element 400, thereby at least positioning the contact gap of the contact assembly 200 to ensure the positioning accuracy of the lead-out terminal 300.

[0076] The positioning component 400 is separately set from the housing 100, and the positioning component 400 can be fixedly installed on the housing 100. The positioning component 400 is formed and processed separately from the housing 100 so that the positioning component 400 is smaller in volume than the housing 100, fewer parts are assembled, it is easier to control the accuracy of the positioning component 400, and it can ensure the structural strength of the positioning component 400, making the positioning component 400 less prone to deformation.

[0077] In this way, the housing 100 can position the positioning member 400, and the positioning member 400 can position the lead-out end 300, so that the lead-out end 300 is accurately positioned relative to the housing 100, thereby improving the assembly accuracy of the lead-out end 300 and thus positioning at least the contact gap of the contact assembly 200. In this way, the positioning member 400 can improve the reliability of the positioning of the lead-out end 300 in the contact direction of the contact assembly 200, ensuring accurate contact gap, thereby 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 Figures 2 to 5In one embodiment, the contact assembly 200 includes a moving contact 210 and a stationary contact 220, which are disposed opposite to each other in the housing 100. The moving contact 210 is movably disposed in the housing 100, while the stationary contact 220 is fixedly disposed in the housing 100. The moving contact 210 can move toward or away from the stationary contact 220 to close or open with the stationary contact 220, thereby closing or opening the relay 10.

[0079] In one embodiment, the 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 moving contact 210, the second direction is the contact direction between the moving contact 210 and the stationary contact 220, and the third direction is the direction perpendicular to the first and second directions. The moving contact 210 can close or open with the stationary contact 220 along the second direction (the contact direction, which will not be described again below). 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.

[0080] In one embodiment, the moving contact 210 includes a moving spring 212 and a moving contact 211. The moving spring 212 is movably disposed in the housing 100 along a second direction, and the moving contact 211 is disposed on the moving spring 212. The stationary contact 220 includes a stationary contact 221, which is riveted to the housing 100 and disposed opposite to the moving contact 211. The moving spring 212 can move along the second direction to close or open the moving contact 211 and the stationary contact 221, thereby realizing the closing or opening of the moving contact 210 and the stationary contact 220, and thus realizing the closing or opening of the relay 10.

[0081] In one embodiment, the lead-out terminal 300 is connected to the moving contact 210 and / or the stationary contact 220. In this embodiment, the lead-out terminal 300 is connected to the moving contact 210 and the stationary contact 221. Of course, in other embodiments of this application, the lead-out terminal 300 may also be connected to the stationary contact 220 or to both the moving contact 210 and the stationary contact 220.

[0082] Exemplarily, the lead-out end 300 is connected to the movable spring 212 and the stationary contact 221. The movable spring 212 is riveted to the lead-out end 300, and the stationary contact 221 passes through the movable spring 212 and is riveted to the lead-out end 300. Thus, after the lead-out end 300 extends through the housing 100, it connects to a wire to connect the movable spring 212 to the circuit. Optionally, the lead-out end 300 and the movable spring 212 can be an integral structure. Of course, in other embodiments of this application, the lead-out end 300 and the movable spring 212 can also be separately configured and reliably connected by riveting or other methods. In this embodiment, the stationary contact 221 is separately riveted and fixedly connected to the lead-out end 300. Of course, in other embodiments of this application, the stationary contact 221 can also be integrally formed on the lead-out end 300.

[0083] In one embodiment, the relay 10 further includes a drive structure (not shown), which is disposed in the housing 100 and can abut against the movable spring 212. The drive structure can drive the movable spring 212 to move in a second direction, so that the movable contact 211 can close or open with the stationary contact 221. The drive structure is the power source of the relay 10, and by controlling the movement of the movable spring 212 through the drive structure, the closing or opening control of the relay 10 is realized. In other embodiments, the drive structure can indirectly push and pull the movable spring 212 through a push-pull structure.

[0084] In this embodiment, the driving structure is a magnetic circuit structure, which drives the movement of the movable spring 212 through the cooperation of the coil and the armature assembly. Of course, in other embodiments of this application, the driving structure may also be other structures capable of driving the movement of the movable spring 212, such as a motor.

[0085] It is worth noting that the focus of this application is on the positioning of the lead-out end 300 by the positioning component 400, and the cooperation between the lead-out end 300 and the positioning component 400 and the housing 100. The structure of the drive structure, the structural principle of the drive structure driving the moving spring 212, and the structure and principle of the moving contact 210 and the stationary contact 220 are not the focus of this application and will not be described in this application.

[0086] See Figures 2 to 5 In one embodiment, the positioning member 400 is located near the connection between the lead-out end 300 and the contact assembly 200, and is used to position the lead-out end 300 on the side near the contact assembly 200. That is, after the positioning member 400 is connected to the lead-out end 300, the positioning member 400 can be located near the moving contact 211 and the stationary contact 221. In this way, the positioning member 400 can position the lead-out end 300 near the moving contact 211 and the stationary contact 221, ensuring accurate clearance between the moving contact 211 and the stationary contact 221, thereby improving the reliability of the contact clearance, reducing the risk of affecting contact closure or opening, and ultimately ensuring the performance of the relay 10.

[0087] See Figures 2 to 5 In one embodiment, the positioning member 400 is located inside the housing 100. That is, the positioning member 400 is fixedly installed in the housing 100, and the positioning member 400 positions the lead-out end 300 inside the housing 100 to improve the assembly accuracy of the lead-out end 300. At the same time, the positioning member 400 can also be set close to the moving contact 211 and the stationary contact 221 to ensure the accuracy of the gap between the moving contact 211 and the stationary contact 221, thereby improving the reliability of the contact gap and ensuring the performance of the relay 10.

[0088] Of course, in other embodiments of this application, the positioning member 400 may also be located on the outside of the housing 100. That is, the positioning member 400 is fixedly installed outside the housing 100, and the positioning member 400 positions the lead-out end 300 on the outside of the housing 100. In this way, the positioning member 400 can also achieve the positioning of the lead-out end 300, so as to improve the assembly accuracy of the lead-out end 300.

[0089] It is worth noting that the positioning element 400 is on the outside of the housing 100, and its structure and connection principle with the lead-out end 300 are essentially the same as those of the positioning element 400 on the inside of the housing 100. The following text will only use the positioning element 400 on the inside of the housing 100 as an example for explanation, and the positioning element 400 on the outside of the housing 100 will not be described again.

[0090] See Figure 2 , Figure 6 In one embodiment, the housing 100 includes a base plate 110 and a plurality of side plates 120. The side plates 120 are disposed on the base plate 110 and together with the base plate 110 form an installation space. Each side plate 120 has a mounting position 121, which is an open groove on the side of the side plate 120 facing away from the base plate 110. An extension end 300 is perpendicular to the base plate 110 and passes through the mounting position 121 to extend out of the side plate 120. Figure 6 for Figure 2 A schematic diagram of the housing 100 in the relay 10 shown.

[0091] The base plate 110 serves as the base of the housing 100. Multiple side plates 120 are disposed on the edges of the base plate 110, and the edges of adjacent side plates 120 are connected to form a box-like structure for the housing 100. Thus, the multiple side plates 120 and the base plate 110 can enclose an installation space. The moving contact 210, the stationary contact 220, the lead-out end 300, and the positioning member 400 are disposed in the installation space. The moving contact 210 and the stationary contact 220 close or open in the installation space. The lead-out end 300 is connected to the moving spring 212 in the installation space, and the positioning member 400 positions the lead-out end 300 in the installation space.

[0092] Furthermore, the mounting position 121 extends through the side plate 120 along a first direction and has a certain depth along a third direction, forming an open groove above the side plate 120. This mounting position 121 connects to the mounting space, linking the outer and inner mounting spaces of the housing 100. The lead-out end 300 can extend through the mounting position 121, and in this case, the lead-out end 300 can be perpendicular to the bottom plate 110. Thus, the lead-out end 300 is upright relative to the bottom plate 110, allowing it to extend vertically out of the housing 100, reducing the horizontal space occupied by the lead-out end 300. This facilitates the design of more lead-out ends 300 on the side of the housing 100 to meet the usage requirements of different working conditions. Optionally, the lead-out end 300 can also be perpendicular to both the bottom plate 110 and the side plate 120.

[0093] For large, tall relays, the housing is typically injection molded. During molding, a deep opening needs to be made in the side panel of the housing, through which the vertical leads are led out. However, due to the height of the housing and the large chamfer during demolding, the size of the opening is inaccurate. After the leads are installed into the opening, the positioning reliability of the leads is poor, which in turn affects the gap between the contacts.

[0094] Therefore, this application uses a positioning element 400 to position the lead-out end 300. The lead-out end 300 only extends through the mounting position 121 of the side plate 120, without the need for the inner wall of the mounting position 121 to position the lead-out end 300. In this way, even if the demolding chamfer at the mounting position 121 is large, it will not affect the positioning of the lead-out end 300, ensuring the assembly accuracy of the lead-out end 300, and thus ensuring the reliable gap between the moving contact 211 and the stationary contact 221. At the same time, when the housing 100 is formed, there is no need to control many dimensions, reducing the forming difficulty of the housing 100 and facilitating the forming of the housing 100.

[0095] Furthermore, for traditional large and tall relays, after the leads extend out of the housing through the opening, multiple sets of moving springs are usually riveted to the leads. When the moving contacts close or open with the stationary contacts, the leads are subjected to a significant reaction force. This reaction force acts on the side plate of the housing, providing sufficient support for the leads through the side plate. However, because the openings in the side plate are relatively deep, the side plate is prone to deformation after the leads are subjected to force, resulting in insufficient support from the side plate for the leads.

[0096] Therefore, this application employs a positioning element 400 to position the lead-out end 300 in the contact direction between the moving contact element 210 and the stationary contact element 220. The positioning element 400 is fixedly installed on the base plate 110 of the housing 100. The positioning element 400 can position the lead-out end 300, that is, the base plate 110 positions the positioning element 400, thereby positioning the lead-out end 300. When the reaction force generated when the moving contact element 210 and the stationary contact element 220 close or open acts on the lead-out end 300, the positioning element 400 provides sufficient support for the lead-out end 300 due to its positioning and the good strength and resistance to deformation of the positioning element 400.

[0097] In this way, even if the mounting position 121 on the side plate 120 is deep, the side plate 120 does not need to support the lead-out end 300, thus avoiding deformation of the side plate 120 and ensuring the structural strength of the housing 100. At the same time, the positioning member 400 can provide positioning accuracy and reliable support for the lead-out end 300 in the contact direction to achieve accurate positioning of the lead-out end 300, thereby ensuring the reliability of the contact gap.

[0098] See Figure 6 In one embodiment, the base plate 110 has a positioning component, and the positioning member 400 positions the lead-out end 300 within the housing by positioning and assembling with the positioning component. Thus, the positioning member 400 is positioned and installed on the base plate 110 of the housing 100 by the positioning component, and the positioning member 400 relies on the base plate 110 for positioning, achieving relative positioning of the lead-out end 300 within the housing 100. After the force on the lead-out end 300 is transmitted to the positioning member 400, the force on the positioning member 400 can be transmitted to the base plate 110. Since the base plate 110 is relatively strong and not easily deformed, reliable positioning of the positioning member 400 can be achieved, improving the positioning accuracy of the positioning member 400 within the housing 100, thereby improving the positioning accuracy of the lead-out end 300. Optionally, the positioning component is a protrusion or a groove, and the positioning member 400 is provided with a structure that mates with the positioning component.

[0099] See Figures 2 to 5 In one embodiment, the contact assembly 200 includes a plurality of moving contacts 210 and a plurality of stationary contacts 220. The moving contacts 210 are spaced apart within the housing 100, and each stationary contact 220 is arranged opposite to a corresponding moving contact 210. When a moving contact 210 moves, it can close or open with its corresponding stationary contact 220. The relay 10 incorporates a plurality of moving contacts 210 and a plurality of stationary contacts 220, 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 210 are spaced apart within the housing 100 and correspond one-to-one with the plurality of stationary contacts 220. Thus, each moving contact 210 can close or open with its corresponding stationary contact 220.

[0100] In one embodiment, the lead-out end 300 is connected to the moving contact 210, and the positioning member 400 can support the lead-out end 300 in the contact direction between the moving contact 210 and the stationary contact 220. The moving spring 212 can move in a second direction so that the moving contact 211 and the stationary contact 221 can close or open in the contact direction. It is understood that the lead-out end 300 and the moving spring 212 are fixedly connected, such as by riveting, to improve the structural strength of the connection between the lead-out end 300 and the moving contact 210.

[0101] When the moving contact 211 and the stationary contact 221 are closed or open, the moving spring 212 will be subjected to a certain force. This force will cause the lead-out end 300 to wobble in the contact direction, affecting the contact gap. The positioning member 400 can support the lead-out end 300 in the contact direction, restrict the displacement of the lead-out end 300 in the contact direction, and can achieve positioning of the lead-out end 300 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 210 are spaced apart in the housing 100 along a second direction, and the moving contacts 210 close or open with the stationary contacts 220 along the second direction. A moving spring 212 moves along the second direction to cause a moving contact 211 to close or open with a stationary contact 221 along the second direction, and the moving contacts 210 to close or open with the stationary contacts 220 along the second direction. In other embodiments of this application, the plurality of moving contacts 210 may also be spaced apart in a third direction in the housing 100, with the stationary contacts 220 corresponding to the moving contacts 210. In this way, the plurality of moving contacts 210 and the plurality of stationary contacts 220 present a multi-layered structure in the housing 100, 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 210 are spaced apart in the housing 100 along a second direction, and each movable contact 210 is connected to a lead-out terminal 300. In other embodiments, the plurality of movable contacts 210 are arranged spaced apart along the second direction and a third direction, so that the plurality of movable contacts 210 have a double-layer structure. Each movable contact 210 is connected to a lead-out terminal 300, and the vertically arranged lead-out terminals 300 are connected to the circuit through a lead-out terminal 300 on the outside of the housing 100.

[0104] See Figures 2 to 6In this embodiment, at least a portion of the surface of the base plate 110 is perpendicular to a third direction. Thus, a plurality of moving contacts 210 are spaced apart in the housing 100 along a second direction, and the moving contacts 210 are placed perpendicular to the base plate 110 and extend along a first direction, so that the moving contacts 210 close or open with the stationary contacts 220 along the second direction.

[0105] See Figures 2 to 5 In one embodiment, the number of leads 300 is greater than or equal to the number of moving contacts 210. In this embodiment, the number of leads 300 is equal to the number of moving contacts 210. Each moving spring 212 is connected to a lead 300, and the moving spring 212 is connected to the circuit through the lead 300. Of course, in other embodiments of this application, the number of leads 300 may also be greater than the number of moving contacts 210. When multiple moving contacts 210 and multiple stationary contacts 220 present a multi-layer structure in the housing 100, the leads 300 arranged vertically are connected to the circuit through a lead 300 on the outside of the housing 100.

[0106] See Figure 5 In one embodiment, the movable spring 212 includes a fixed body and multiple flow guiding branches 2121. The multiple flow guiding branches 2121 are spaced apart on the fixed body along a third direction and extend along a first direction. There are multiple movable contacts 211 and multiple stationary contacts 221, which are correspondingly arranged. Each flow guiding branch 2121 is provided with one movable contact 211. In this way, each movable spring 212 is connected to multiple movable contacts 211 through multiple flow guiding branches 2121, so that multiple movable contacts 211 can be closed or opened simultaneously with multiple stationary contacts 221, 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 2121, which are spaced apart along a third direction. There are also four moving contacts 211 and four stationary contacts 221, with one moving contact 211 on each flow guide branch 2121. The moving contacts 211 and stationary contacts 221 are arranged in a one-to-one correspondence. Of course, in other embodiments of this application, the number of flow guide branches 2121 can be other than the number of moving contacts 211 and stationary contacts 221.

[0108] See Figure 3 In one embodiment, the mounting body 412 of the positioning member 400 (mentioned below) and the moving contact member 210 are spaced apart along a first direction. That is, there is a certain distance between the mounting body 412 of the positioning member 400 and the moving contact member 210 in the first direction (as described below). Figure 10In this way, the mounting body 412 will not obstruct the moving contact 210 in the second direction, and thus will not hinder the movement of the moving contact 210. This allows the moving contact 210 to accurately close or open with the stationary contact 220 along the second direction, thereby avoiding interference from the positioning member 400 on the movement of the moving contact 210 and ensuring the accuracy of the movement of the moving contact 210. Simultaneously, the mounting body 412 and the moving contact 210 have a certain distance in the first direction, and the two sides in the first direction can also be used as positioning features to avoid interference with the movement of the moving contact 210.

[0109] See Figures 2 to 5 In one embodiment, the relay 10 includes at least two leads 300, and a positioning member 400 connects to the at least two leads 300 to position them, thereby positioning at least the contact gap of the contact assembly 200. The at least two leads 300 can be positioned by a positioning member 400 to improve the assembly accuracy of the leads 300 and reduce the relative mating position between the leads 300 and the housing 100. Thus, the positioning member 400 improves the positioning reliability of the leads 300, ensures accurate contact gap, improves the reliability of the contact gap, avoids affecting the closing or opening of the contacts, and thus ensures the performance of the relay 10.

[0110] See Figures 2 to 5 In one embodiment, at least two leads 300 extend through the housing 100 on opposite sides, and a positioning member 400 connects both leads 300 simultaneously; alternatively, at least one positioning member 400 connects at least one lead 300 on each side. That is, at least two leads 300 can extend out of the housing 100 on both sides in the width direction. Thus, at least two leads 300 are located on opposite sides of the relay 10, providing space for connecting wires to the leads 300.

[0111] Furthermore, after at least two leads 300 extend from the housing 100 in the width direction, they can be simultaneously connected by the same positioning element 400. This allows the at least two leads 300 to be positioned using the same positioning element 400, improving their positioning accuracy and assembly efficiency, while also providing better relative positioning accuracy between the leads 300. Alternatively, after at least two leads 300 extend from the housing 100 in the width direction, at least one positioning element 400 can be used on each side to connect at least one lead 300. For example, at least one positioning element 400 can be used on the front side to connect at least one lead 300, and at least one positioning element 400 can be used on the rear side to connect at least one lead 300, thus achieving positioning of the at least two leads 300.

[0112] See Figures 2 to 4In one embodiment, the positioning members 400 on opposite sides are staggered along the second direction. That is, the two positioning members 400 are not collinear in the first direction. In this way, after the lead-out end 300 can be connected to different moving springs 212 respectively, the positioning member 400 can position the different lead-out ends 300 without interfering with the movement of the moving springs 212, so as to ensure that the moving contact 210 and the stationary contact 220 can be closed or opened normally.

[0113] See Figures 2 to 5 In this embodiment, there are four leads 300, which extend through the housing 100 along its width. Two leads 300 extend from the front of the housing 100, and the other two extend from the rear. There are two positioning members 400, one connecting to the two front leads 300 and the other connecting to the two rear positions. Thus, the two front leads 300 are positioned by one positioning member 400, and the two rear leads 300 are positioned by the other, ensuring the positioning accuracy of the four leads 300. Furthermore, since each positioning member 400 positions two leads 300, the housing 100 only needs to address the positioning and assembly of the two positioning members 400, reducing the relative mating positions between the leads 300 and the housing 100.

[0114] Of course, the number of positioning elements 400 can also be one, with one positioning element 400 simultaneously connecting the lead-out terminals 300; or, the number of positioning elements 400 can be four, with each positioning element 400 connecting one lead-out terminal 300. In other embodiments of this application, the number of lead-out terminals 300 can also be five, six, or other numbers. One positioning element 400 can connect multiple lead-out terminals 300 on the same side; or, each positioning element 400 can correspond to one lead-out terminal 300; or, one positioning element 400 can connect all lead-out terminals 300.

[0115] In one embodiment, at least two leads 300 extend through the housing 100 on the same side, and each positioning member 400 connects to at least two leads 300 simultaneously, or each positioning member 400 connects to one lead 300. That is, at least two leads 300 extend out of the housing 100 on the same side. Exemplarily, at least two leads 300 may extend out of the housing 100 through the front or rear side of the housing 100. In this case, a positioning member 400 can be used to connect all or part of the leads 300 to achieve positioning of the leads 300.

[0116] See Figures 1 to 5In one embodiment, the lead-out end 300 includes a connecting body 310 and a lead-out body 320 disposed on the connecting body 310. The connecting body 310 is located in the housing 100 and is electrically connected to the contact assembly 200. The lead-out body 320 extends through the housing 100. The lead-out body 320 is sheet-shaped or bent. The connecting body 310 is the main component that connects the lead-out end 300 to the movable spring 212, and the lead-out body 320 is the component through which the lead-out end 300 extends out of the housing 100. Optionally, the lead-out body 320 and the connecting body 310 are an integral structure.

[0117] The connecting body 310 is located within the housing 100. One side of the connecting body 310 is riveted to the movable spring 212, and the other side of the connecting body 310 is connected to the lead-out body 320. The lead-out body 320 extends through the side plate 120 of the housing 100 to connect external wires. Furthermore, the height of the connecting body 310 extends along a third direction, allowing it to stand upright. The lead-out body 320 can be sheet-like, meaning its overall height extends along a third direction. Alternatively, a portion of the lead-out body 320 can extend along a third direction, allowing it to be bent. Thus, the lead-out body 320 extends upright through the housing 100, and bends on the outside of the housing 100 to facilitate the connection of external wires.

[0118] See Figure 1 In one embodiment, the relay 10 further includes a cover plate 500, which covers the housing 100, and the cover plate 500 and the housing 100 together form the outer shell of the relay 10. The cover plate 500 is equivalent to the top cover of the housing 100. After the cover plate 500 is placed on the top of the housing 100, the cover plate 500 is connected to the housing 100, which can seal the top of the housing 100 and make the relay 10 form a hexahedral structure to ensure the performance of the relay 10.

[0119] In one embodiment, the housing 100 has a plurality of first snap-fit ​​portions 130, and the cover plate 500 has a second snap-fit ​​portion 510. After the cover plate 500 is placed on the housing 100, the cover plate 500 is snapped into the first snap-fit ​​portions 130 of the housing 100 through the second snap-fit ​​portion 510, thereby fixing the cover plate 500 to the housing 100. Fixing the cover plate 500 to the housing 100 through the first snap-fit ​​portions 130 and the second snap-fit ​​portion 510 facilitates the assembly of the cover plate 500 and the housing 100 and reduces assembly difficulty.

[0120] In this embodiment, the first snap-fit ​​portion 130 is a buckle, and the second snap-fit ​​portion 510 is a slot. Of course, the first snap-fit ​​portion 130 can also be a buckle, and the second snap-fit ​​portion 510 can be a slot. In other embodiments of this application, the housing 100 and the cover plate 500 can also be connected by riveting or other means.

[0121] See Figures 1 to 5 In one embodiment, a positioning member 400 is disposed on at least one side of the lead-out end 300 along a third direction. The positioning member 400 extends along the third direction and connects to the lead-out end 300, and the positioning member 400 positions the lead-out end 300 on at least one side along the third direction. That is, the positioning member 400 can connect to the lead-out end 300 from above, from below, or simultaneously from both above and below, to achieve positioning of the lead-out end 300 and ensure the positioning accuracy of the lead-out end 300.

[0122] In this embodiment, the positioning member 400 can position the lead-out end 300 along a third direction, that is, the positioning member 400 connects the lead-out end 300 above and below to position the lead-out end 300. Of course, in other embodiments of this application, the positioning member 400 is disposed on the side of the lead-out end 300 away from the bottom plate 110 of the housing 100, that is, the positioning member 400 connects the lead-out end 300 above, or the positioning member 400 is disposed between the lead-out end 300 and the bottom plate 110 of the housing 100, that is, the positioning member 400 connects the lead-out end 300 below, to achieve positioning of the lead-out end 300.

[0123] It is worth noting that the positioning of the positioning component 400 above and below the lead-out end 300 is largely the same in structure and principle as the positioning of the positioning component 400 above or below the lead-out end 300. The following text will only use the positioning of the positioning component 400 above and below the lead-out end 300 as an example for explanation.

[0124] See Figures 2 to 5 , Figures 7 to 9 In one embodiment, the positioning member 400 includes two positioning frames 410, which are disposed on both sides of the lead-out end 300 along a third direction and are positioned and connected to the lead-out end 300. Figure 7 for Figure 2 The diagram shown is a schematic representation of the positioning element 400 in the relay 10 from one viewpoint. Figure 8 for Figure 7 The diagram shown is a schematic representation of the positioning element 400 from another perspective. Figure 9 for Figure 7 An exploded view of the positioning element 400 shown.

[0125] Two positioning frames 410 are arranged along a third direction, with one positioning frame 410 located above and the other below. The two positioning frames 410 are arranged symmetrically from top to bottom and are connected to each other. The lower positioning frame 410 is set on the bottom plate 110 of the housing 100, and the upper positioning frame 410 is installed on the side plate 120 of the housing 100. After the lead-out end 300 is connected to the two positioning frames 410, the positioning frame 410 can limit the lead-out end 300 along the first direction and the second direction. At the same time, since the lead-out end 300 is located between the two positioning frames 410, the positioning frame 410 can also position the lead-out end 300 along a third direction.

[0126] Thus, after the two positioning brackets 410 are connected to the lead-out terminals 300 on both sides of the third direction, the lead-out terminals 300 can be positioned in the third direction, the first direction, and the second direction, so that the lead-out terminals 300 are reliably fixed in the housing 100, improving the positioning accuracy and positioning efficiency of the lead-out terminals 300, thereby improving the assembly accuracy of the lead-out terminals 300, ensuring the reliability of the contact gap, and thus ensuring the performance of the relay 10.

[0127] See Figure 3 , Figures 7 to 9 In one embodiment, the two positioning frames 410 are separately configured. That is, the positioning member 400 has a separate structural design to facilitate the assembly of the positioning frame 410 with the lead-out end 300. The assembly of the positioning member 400, the lead-out end 300 and the housing 100 is not limited in principle. Two possible assembly methods are described below, but the assembly methods are not limited to the following and other methods may also be used.

[0128] One assembly method is as follows: During assembly, the lead-out end 300 is inserted into the lower positioning frame 410 and connected to the movable spring 212. Then, the upper positioning frame 410 is installed onto the lower positioning frame 410. Subsequently, the two positioning frames 410, the movable contact 210, the stationary contact 220, and the lead-out end 300 are installed into the housing 100, and the upper positioning frame 410 is connected to the side plate 120 of the housing 100. In this way, the positioning member 400, the lead-out end 300, and the housing 100 are assembled.

[0129] Another assembly method is as follows: During assembly, the lower positioning bracket 410 is installed onto the base plate 110 of the housing 100. Then, the lead-out end 300 is inserted into the lower positioning bracket 410 and connected to the movable spring 212. After that, the upper positioning bracket 410 is installed onto the lower positioning bracket 410 and connected to the side plate 120 of the housing 100. In this way, the positioning component 400, the lead-out end 300, and the housing 100 are assembled.

[0130] See Figures 2 to 5In one embodiment, the positioning frame 410 and the lead-out end 300 are assembled along a third direction. In this way, the positioning frame 410 can clamp and position the area of ​​the lead-out end 300 near the moving contact 211, improve the positioning accuracy of the positioning frame 410 for the lead-out end 300, ensure the positioning effect of the lead-out end 300, and at the same time, realize the automated insertion of the lead-out end 300 and the positioning frame 410, facilitate the assembly of the lead-out end 300 and the positioning frame 410, and improve assembly efficiency.

[0131] Of course, in other embodiments of this application, the two positioning frames 410 are an integral structure. That is, the two positioning frames 410 can also be integrated. During assembly, the positioning member 400 is directly installed into the housing 100 as a whole, and then the lead-out end 300 is inserted into the positioning member 400 from the side. In this way, the assembly of the lead-out end 300 and the positioning member 400 can also be achieved, and the lead-out end 300 can also be reliably positioned by the positioning member 400.

[0132] Optionally, the two positioning frames 410 in the positioning member 400 have slight structural differences. This explanation focuses on the structure of one positioning frame 410 and explains the differences between the two. Furthermore, the structures and principles of the two positioning frames 410 in the positioning member 400, whether integral or separate, are essentially the same. This explanation focuses on the separate design. Additionally, in this application, the positioning member 400 simultaneously positions two leads 300, and the structure of the positioning member 400 and the two leads 300 achieving positioning engagement is essentially the same. This explanation focuses on the positioning engagement between the positioning member 400 and one lead 300.

[0133] See Figures 2 to 12 In one embodiment, the positioning frame 410 includes a positioning body 411 and a mounting body 412 disposed on the positioning body 411. The mounting body 412 extends toward another positioning frame 410 and is connected to the mounting body 412 of the other positioning frame 410. The lead-out end 300 is positioned and connected to the positioning body 411 and / or the mounting body 412. Figure 10 for Figure 2 The diagram shown is a schematic of the relay 10 without the upper positioning bracket 410. Figure 11 for Figure 7 A schematic diagram of the positioning bracket 410 above the positioning component 400 shown. Figure 12 for Figure 7 A schematic diagram of the positioning bracket 410 at the bottom of the positioning component 400 shown.

[0134] The mounting body 412 extends along a third direction, and the positioning body 411 is located in the horizontal plane formed by the first and second directions. The mounting body 412 is disposed on one surface of the positioning body 411. When the positioning frame 410 is assembled with the lead-out end 300, the positioning body 411 and the lead-out end 300 are arranged along a third direction, and the mounting body 412 and the lead-out end 300 are arranged along the first direction. Taking the positioning frame 410 above as an example, the positioning body 411 is located above the lead-out end 300, and the mounting body 412 is located to the left or right of the lead-out end 300.

[0135] When the lead-out end 300 is engaged with the upper positioning frame 410 and the lower positioning frame 410, the upper and lower sides of the lead-out end 300 are respectively positioned and connected to the positioning body 411. At this time, the positioning bodies 411 on the upper and lower sides can limit the lead-out end 300 in a third direction relative to the end caps on the upper and lower sides of the lead-out end 300. At the same time, after the lead-out end 300 is connected to the positioning body 411, the positioning body 411 can also position the lead-out end 300 in the first direction and the second direction to improve the positioning accuracy of the lead-out end 300.

[0136] Furthermore, after the lead-out end 300 is connected to the mounting body 412, the mounting body 412 can limit the lead-out end 300 in the first and second directions, further improving the positioning accuracy of the lead-out end 300. It is understandable that in some embodiments, the lead-out end 300 may also be positioned solely by the mounting body 412, that is, the lead-out end 300 and the side wall of the mounting body 412 are interference-fitted to limit the lead-out end 300 in the first and second directions; of course, the lead-out end 300 may also be positioned solely by the positioning body 411, with the upper and lower sides of the lead-out end 300 connected to the positioning body 411 respectively, to limit the lead-out end 300 in the third, first, and second directions.

[0137] Thus, the relay 10 of this application uses a positioning element 400 to simultaneously position the lead-out terminal 300 in multiple directions. The lead-out terminal 300 is connected to the positioning body 411 and the mounting body 412 respectively. The positioning body 411 and the mounting body 412 position the lead-out terminal 300 in a third direction, a first direction, and a second direction, so as to reliably support the lead-out terminal 300, improve the positioning accuracy and efficiency of the lead-out terminal 300, and thus improve the reliability of the contact gap.

[0138] In one embodiment, at least a portion of the edge of the positioning body 411 protrudes from the outer peripheral surface of the mounting body 412. That is, at least a portion of the edge of the positioning body 411 protrudes from the side wall of the mounting body 412 to facilitate the connection between the lead-out end 300 and the positioning body 411, so that the positioning body 411 can position the lead-out end 300 in a first direction and a second direction, thereby improving the positioning accuracy of the lead-out end 300.

[0139] In one embodiment, the positioning body 411 is a mounting plate, and the mounting body 412 is a mounting column. That is, the positioning body 411 is plate-shaped, and the mounting body 412 is column-shaped. Optionally, the positioning body 411 and the mounting body 412 are an integral structure to improve the structural strength of the positioning frame 410. Of course, in other embodiments of this application, the positioning body 411 and the mounting body 412 can also have other shapes, as long as reliable positioning of the lead-out end 300 can be achieved.

[0140] See Figures 2 to 5 , Figures 7 to 16 In one embodiment, the positioning body 411 has a first positioning part 4111, and the lead-out end 300 has a second positioning part 330 at the edge of the positioning body 411. The second positioning part 330 is installed on the first positioning part 4111 along a third direction. Figure 13 for Figure 3 The cross-sectional view of relay 10 shown is along the AA direction. Figure 14 for Figure 3 The sectional view of relay 10 shown along the BB direction. Figure 15 for Figure 8 The top view of the positioning component 400 shown. Figure 16 for Figure 15 The locating element 400 shown is a cross-sectional view along the CC direction.

[0141] A first positioning part 4111 is provided on the surface of the positioning body 411 facing the lead-out end 300, and second positioning parts 330 are respectively provided on the upper and lower sides of the lead-out end 300. When the lead-out end 300 is assembled with the positioning frame 410 along a third direction, the second positioning part 330 of the lead-out end 300 can be installed into the first positioning part 4111 of the positioning body 411 in the positioning frame 410 along the third direction. The positioning of the lead-out end 300 is achieved through the cooperation of the second positioning part 330 and the first positioning part 4111, so as to position the lead-out end 300 in the third direction, the first direction, and the second direction.

[0142] In this embodiment, the first positioning part 4111 is a positioning groove, and the second positioning part 330 is a positioning protrusion. That is, positioning protrusions are provided on the upper and lower sides of the lead-out end 300, and positioning grooves are provided on the positioning body 411. When the lead-out end 300 is assembled with the positioning frame 410, the positioning protrusions of the lead-out end 300 can be inserted into the positioning grooves of the positioning frame 410 along a third direction to achieve positioning of the lead-out end 300. Of course, in other embodiments of this application, the first positioning part 4111 may be a positioning protrusion, and the second positioning part 330 may be a positioning groove.

[0143] See Figures 2 to 5 , Figures 7 to 16In one embodiment, there are multiple second positioning parts 330, which are spaced apart along a first direction. The number of first positioning parts 4111 is equal to the number of second positioning parts 330, and they are correspondingly arranged. In this way, through the cooperation of multiple first positioning parts 4111 and multiple second positioning parts 330, the positioning frame 410 and the lead-out end 300 are positioned at multiple points in the first direction, thereby improving the positioning accuracy and stability of the lead-out end 300.

[0144] In this embodiment, there are two second positioning parts 330, which are spaced apart along the first direction at the lead-out end 300. The number of first positioning parts 4111 on the positioning body 411 corresponds to the number of second positioning parts 330. Thus, the positioning body 411 can position the lead-out end 300 through the cooperation of the two first positioning parts 4111 and the two second positioning parts 330, improving the positioning accuracy of the lead-out end 300. (See reference...) Figures 9 to 12 It is worth noting that one positioning frame 410 of this application is connected to two leads 300 at the same time, so four first positioning parts 4111 are provided on one positioning frame 410.

[0145] Optionally, the two second positioning portions 330 may have the same or different dimensions along the first direction. Of course, in other embodiments of this application, the number of second positioning portions 330 may be one or other, and the first positioning portion 4111 may be adapted to the second positioning portion 330.

[0146] See Figures 2 to 5 , Figures 7 to 16 In one embodiment, the second positioning part 330 and the stationary contact 221 at least partially overlap in the third direction. In this way, the positioning frame 410 can support the lead-out end 300 in the area where the moving contact 211 and the stationary contact 221 are in contact, reduce the shaking of the lead-out end 300 when the moving contact 211 and the stationary contact 221 are closed or opened, and improve the positioning accuracy of the positioning frame 410 for the lead-out end 300.

[0147] See Figures 2 to 5 , Figures 7 to 16 In one embodiment, the second positioning part 330 is disposed near the side plate 120. In this way, the connection between the positioning frame 410 and the lead-out end 300 can be close to the side plate 120, thereby improving the positioning accuracy of the lead-out end 300 near the side plate 120, improving the fitting accuracy between the lead-out end 300 and the side plate 120, reducing the assembly stress caused by dimensional deviations, and at the same time, ensuring that the positional accuracy of the lead-out end 300 and external external components (such as copper strip welding, riveting and other electrical connection fixation) is relatively accurate, reducing the assembly stress caused by installation position deviations.

[0148] Optionally, the number of second positioning parts 330 is at least two, one of which overlaps at least partially with the stationary contact 221 in a third direction, and the other is disposed near the side plate 120. Of course, in other embodiments of this application, the number of second positioning parts 330 may be only one, with the second positioning part 330 overlapping at least partially with the stationary contact 221 in a third direction, or the second positioning part 330 disposed near the side plate 120.

[0149] See Figures 2 to 5 , Figures 7 to 16 In one embodiment, the mounting body 412 has a third positioning portion 4121, and the surface of the lead-out end 300 facing the mounting body 412 has a fourth positioning portion 340, which is mounted in the third positioning portion 4121 along a third direction. The third positioning portion 4121 is disposed on the side wall of the mounting body 412 and is disposed facing the side of the lead-out end 300, and the fourth positioning portion 340 is disposed on the surface of the lead-out end 300 opposite to the mounting body 412 and is disposed corresponding to the third positioning portion 4121.

[0150] When the lead-out end 300 is assembled with the positioning frame 410 along a third direction, and the lead-out end 300 is inserted into the positioning frame 410 along the third direction, the third positioning part 4121 and the fourth positioning part 340 are positioned opposite each other, and the lead-out end 300 can move along the third positioning part 4121 through the fourth positioning part 340 to guide and limit the assembly of the lead-out end 300 with the positioning frame 410. When the lead-out end 300 is connected to the positioning body 411, the third positioning part 4121 and the fourth positioning part 340 are positioned and engaged, and the lead-out end 300 is positioned in the first direction and the second direction through the engagement of the third positioning part 4121 and the fourth positioning part 340.

[0151] In this embodiment, the third positioning part 4121 is a positioning groove, and the fourth positioning part 340 is a positioning protrusion. That is, a positioning protrusion is provided on the side of the lead-out end 300, and a positioning groove is provided on the mounting body 412. When the lead-out end 300 and the positioning frame 410 are assembled along a third direction, the positioning protrusion of the lead-out end 300 can be inserted into the positioning groove of the positioning frame 410 along the third direction and can slide along the positioning groove to achieve positioning of the lead-out end 300. Of course, in other embodiments of this application, the third positioning part 4121 may be a positioning protrusion, and the fourth positioning part 340 may be a positioning groove. Optionally, the third positioning part 4121 and the fourth positioning part 340 may be an interference fit.

[0152] See Figures 2 to 5 , Figures 7 to 16In one embodiment, the positioning frame 410 further includes a limiting body 413 disposed on the edge of the mounting body 412. The limiting body 413 is disposed opposite to the mounting body 412 and forms a receiving groove with the mounting body 412 to receive the lead-out end 300. The limiting body 413 is disposed on the edge of the positioning body 411 and extends in a third direction. Moreover, there is a certain distance between the limiting body 413 and the mounting body 412 in a second direction.

[0153] Thus, a certain distance exists between the limiting body 413 and the mounting body 412 to form a receiving groove. After the lead-out end 300 and the positioning frame 410 are assembled along the third direction, the lead-out end 300 is partially located in the receiving groove. The receiving groove can further limit the lead-out end 300 in the second direction, so that the limiting body 413 can further support the lead-out end 300 in the contact direction and improve the positioning accuracy of the lead-out end 300.

[0154] Optionally, a limiting body 413 is provided on both positioning frames 410. Of course, a limiting body 413 may be provided on only one of the positioning frames 410. In this embodiment, a limiting body 413 is provided on the upper positioning frame 410, while a limiting body 413 is not provided on the lower positioning frame 410. Optionally, the limiting body 413 is plate-shaped and is an integral structure with the positioning body 411 to improve structural strength.

[0155] See Figures 2 to 16 In one embodiment, the positioning frame 410 further has a first guide portion 414, which is disposed on the edge of the mounting body 412 along a third direction. The housing 100 has a second guide portion 140 on the surface corresponding to the first guide portion 414. The first guide portion 414 and the second guide portion 140 guide and cooperate along a third direction to guide and limit the positioning frame 410 to be installed on the housing 100.

[0156] The first guide portion 414 is disposed on the edge of the mounting body 412 along a third direction. Further, the first guide portion 414 may also be disposed on the side wall of the limiting body 413. The inner wall of the side plate 120 of the housing 100 has a second guide portion 140 extending along a third direction. When the positioning frame 410 is assembled with the housing 100 along a third direction, the first guide portion 414 of the positioning frame 410 is aligned with the second guide portion 140 of the housing 100, and the first guide portion 414 and the second guide portion 140 are guided and engaged. When the positioning frame 410 is installed into the housing 100 along a third direction, the guiding engagement of the first guide portion 414 and the second guide portion 140 can limit the positioning frame 410, so that the positioning frame 410 is accurately installed into the housing 100.

[0157] In this embodiment, the first guide portion 414 is a guide protrusion, and the second guide portion 140 is a guide groove. That is, the side of the positioning frame 410 is provided with a guide protrusion, and the inner wall of the side plate 120 of the housing 100 is provided with a guide groove. When the positioning frame 410 is assembled with the housing 100, the guide protrusion of the positioning frame 410 can be inserted into the guide groove of the housing 100 and can slide along the guide groove to achieve guiding and limiting of the positioning frame 410. Of course, in other embodiments of this application, the first guide portion 414 can be a guide groove, and the second guide portion 140 can be a guide protrusion. In one embodiment, the dimension of the second guide portion 140 along the third direction is the same as the dimension of the side plate 120 along the third direction. In this way, one second guide portion 140 can limit the position of two supports simultaneously.

[0158] See Figures 2 to 16 In one embodiment, the positioning frame 410 further has a first mating part 415, which is disposed on the edge of the mounting body 412 along a third direction. The housing 100 has a second mating part 150 on the surface corresponding to the first mating part 415. The first mating part 415 and the second mating part 150 are mated and connected along a third direction, wherein the first mating part 415 and the second mating part 150 are riveted or bonded.

[0159] The first mating part 415 is disposed on the edge of the mounting body 412 along a third direction. Further, the first mating part 415 can also be disposed on the side wall of the limiting body 413. The inner wall of the side plate 120 of the housing 100 has a second mating part 150 extending along a third direction. When the positioning frame 410 is assembled with the housing 100 along a third direction, the first guide part 414 of the positioning frame 410 is aligned with the second guide part 140 of the housing 100 and guided into engagement. At this time, the first mating part 415 of the positioning frame 410 also corresponds to the second mating part 150 of the housing 100. After the positioning frame 410 is installed in place on the housing 100, the first mating part 415 can engage with the second mating part 150 along a third direction. By fixing the first mating part 415 and the second mating part 150, a fixed connection between the positioning frame 410 and the housing 100 can be achieved.

[0160] Optionally, the first mating part 415 is a mating protrusion, and the second mating part 150 is a mating groove. That is, the side of the positioning frame 410 can be provided with a mating protrusion, and the inner wall of the side plate 120 of the housing 100 is provided with a mating groove. After the positioning frame 410 and the housing 100 are assembled, the mating protrusion can be located in the mating groove. At this time, alternating current is injected into the mating groove to make the mating protrusion bonded to the inner wall of the mating groove, thereby achieving the bonding and fixation of the positioning frame 410 and the housing 100. Of course, in other embodiments of this application, the first mating part 415 can also be a mating protrusion, and the second mating part 150 can be a mating groove.

[0161] Optionally, both the first mating part 415 and the second mating part 150 are hollow fixing posts, which can be fixed by threaded connection or riveting to achieve a fixed connection between the positioning frame 410 and the housing 100. Optionally, the first mating part 415 can be provided only on the upper positioning frame 410, or the first mating part 415 can be provided on both the upper and lower positioning frames 410, or only on the lower positioning frame 410. Of course, in other embodiments, the bonding or riveting position can also be set at other parts, as long as the fixed installation of the positioning frame 410 and the housing 100 can be achieved.

[0162] See Figures 2 to 5 , Figures 7 to 16 In one embodiment, one of the two positioning frames 410 has a first positioning protrusion 416, and the other has a first positioning groove 417 opposite to the first positioning protrusion 416. The first positioning protrusion 416 and the first positioning groove 417 are positioned and engaged to position the two positioning frames 410. In this embodiment, the upper positioning frame 410 has the first positioning protrusion 416, and the lower positioning frame 410 has the first positioning groove 417. When the upper positioning frame 410 and the lower positioning frame 410 are assembled, the first positioning protrusion 416 can be inserted into the first positioning groove 417 to realize the assembly of the two positioning frames 410.

[0163] Of course, in other embodiments of this application, the lower positioning frame 410 may have a first positioning protrusion 416, and the upper positioning frame 410 may have a first positioning groove 417. Optionally, the end of the first positioning protrusion 416 is pointed, and the end of the first positioning groove 417 is open, so as to facilitate the positioning engagement of the first positioning protrusion 416 and the first positioning groove 417. Optionally, the first positioning protrusion 416 and the first positioning groove 417 are located on the mounting body 412 of the positioning frame 410.

[0164] See Figures 2 to 16 In one embodiment, the bottom wall of the housing 100 has a second positioning protrusion 160, and a positioning bracket 410 has a second positioning groove 418 opposite to the second positioning protrusion 160 on the side facing the housing 100. The second positioning protrusion 160 and the second positioning groove 418 are positioned and engaged to position the positioning bracket 410 and the housing 100. In this embodiment, the second positioning protrusion 160 is provided on the bottom plate 110 of the housing 100, and the positioning bracket 410 below it has a second positioning groove 418. When the positioning bracket 410 is assembled with the housing 100, the second positioning protrusion 160 can be inserted into the second positioning groove 418 to realize the assembly of the positioning bracket 410 and the housing 100.

[0165] Of course, in other embodiments of this application, the lower positioning frame 410 may have a second positioning protrusion 160, and the bottom plate 110 of the housing 100 may have a second positioning groove 418. Optionally, the end of the second positioning protrusion 160 may be pointed, and the end of the second positioning groove 418 may be open, so as to facilitate the positioning engagement between the second positioning protrusion 160 and the second positioning groove 418. Optionally, the second positioning protrusion 160 or the second positioning groove 418 may be located on the positioning body 411 of the positioning frame 410.

[0166] The relay 10 of this application uses a positioning element 400 to position the lead-out terminal 300. In this way, the positioning of the lead-out terminal 300 by the positioning element 400 can improve the reliability of the positioning of the lead-out terminal 300, so as to make the positioning of the lead-out terminal 300 relative to the housing 100 accurate, thereby improving the assembly accuracy of the lead-out terminal 300, improving the reliability of the contact gap, and thus ensuring the performance of the relay 10.

[0167] Furthermore, after the lead-out end 300 is positioned by the positioning component 400, the lead-out end 300 only extends through the mounting position 121 of the side plate 120, without the need for the inner wall of the mounting position 121 to position the lead-out end 300. In this way, even if the demolding chamfer at the mounting position 121 is large, it will not affect the positioning of the lead-out end 300, ensuring the assembly accuracy of the lead-out end 300, thereby ensuring the reliable gap between the moving contact 211 and the stationary contact 221. In addition, when the housing 100 is formed, there is no need to control many dimensions, reducing the forming difficulty of the housing 100 and facilitating the forming of the housing 100.

[0168] Simultaneously, the positioning element 400 provides positioning support for the lead-out end 300 in the contact direction between the moving contact 210 and the stationary contact 220. When the reaction force generated when the moving contact 210 and the stationary contact 220 close or open acts on the lead-out end 300, the positioning element 400, combined with the positioning of the housing 100, provides sufficient support for the positioning element 400, which in turn provides sufficient support for the lead-out end 300. Thus, even if the mounting position 121 on the side plate 120 is deep, the side plate 120 does not need to support the lead-out end 300, preventing deformation of the side plate 120, ensuring the structural strength of the housing 100, and providing positioning accuracy and reliable support for the lead-out end 300 in the contact direction, thereby achieving accurate positioning of the lead-out end 300 and ensuring the reliability of the contact gap.

[0169] 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.

[0170] 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: case; Contact components are disposed within the housing; One end of the lead-out terminal is disposed within the housing and electrically connected to the contact assembly, while the other end extends through the housing; and A positioning element is fixedly installed on the housing. The positioning element 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 positioning element is located near the connection between the lead-out end and the contact assembly, and is used to position the lead-out end on the side closest to the contact assembly.

3. The relay according to claim 1, characterized in that, The positioning element is located inside the housing.

4. The relay according to claim 1, characterized in that, The relay includes at least two leads, and the positioning element connects to at least two leads to position at least two leads, thereby positioning at least the contact gap of the contact assembly.

5. The relay according to claim 4, characterized in that, At least two of the leads are inserted through the housing on the same side, and each of the positioning elements is connected to at least two of the leads simultaneously, or each of the positioning elements is connected to one of the leads.

6. The relay according to claim 4, characterized in that, At least two of the leads are inserted into the housing on opposite sides, and the positioning element connects at least two of the leads simultaneously, or at least one positioning element is used on each side to connect at least one of the leads.

7. The relay according to claim 1, characterized in that, The housing includes a bottom plate and multiple side plates, the multiple side plates being disposed on the bottom plate and forming an installation space with the bottom plate; The side plate has a 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 mounting position to extend out of the side plate.

8. The relay according to claim 7, characterized in that, The base plate has a positioning component, and the positioning component positions the lead-out end within the housing by positioning assembly with the positioning component.

9. The relay according to claim 1, characterized in that, The extending direction of the contact component is denoted as the first direction, the contact direction of the contact component is denoted as the second direction, and the direction perpendicular to the first direction and the second direction is denoted as the third direction. The positioning element is disposed on at least one side of the lead-out end along a third direction.

10. The relay according to claim 9, characterized in that, The positioning component includes two positioning frames, which are arranged on both sides of the lead-out end along a third direction and are positioned and connected to the lead-out end.

11. The relay according to claim 10, characterized in that, The two positioning frames are set separately.

12. The relay according to claim 10, characterized in that, The positioning frame and the lead-out end are assembled along a third direction.

13. The relay according to claim 10, characterized in that, The positioning frame includes a positioning body and a mounting body disposed on the positioning body. The mounting body extends toward another positioning frame and is connected to the mounting body of the other positioning frame. The lead-out end is positioned and connected to the positioning body and / or the mounting body.

14. The relay according to claim 13, characterized in that, At least a portion of the edge of the positioning body protrudes from the outer peripheral surface of the mounting body. The positioning body has a first positioning part, and the lead-out end has a second positioning part facing the edge of the positioning body. The second positioning part is mounted on the first positioning part in a third direction.

15. The relay according to claim 14, characterized in that, The second positioning part and the stationary contact of the contact component at least partially overlap in the third direction; And / or, the second positioning part is disposed near the side plate of the housing; And / or, the number of the second positioning parts is multiple, the multiple second positioning parts are arranged at intervals along the first direction, the number of the first positioning parts is equal to the number of the second positioning parts, and they are arranged accordingly.

16. The relay according to claim 13, characterized in that, The mounting body has a third positioning part, and the surface of the lead-out end facing the mounting body has a fourth positioning part, which is mounted on the third positioning part along a third direction.

17. The relay according to claim 13, characterized in that, At least a portion of the edge of the positioning body protrudes from the outer peripheral surface of the mounting body. The positioning frame also includes a limiting body disposed on the edge of the mounting body. The limiting body is disposed opposite to the mounting body and forms a receiving groove with the mounting body. The receiving groove is used to receive the lead-out end. And / or, at least a portion of the edge of the positioning body protrudes from the outer peripheral surface of the mounting body, the positioning frame further has a first guide portion, the first guide portion is disposed on the edge of the mounting body in a third direction, the housing has a second guide portion on the surface corresponding to the first guide portion, the first guide portion and the second guide portion guide and cooperate in a third direction to guide and limit the positioning frame to be installed on the housing; And / or, the positioning frame further has a first mating part, the first mating part being disposed on the edge of the mounting body along a third direction, and the housing having a second mating part on the surface corresponding to the first mating part, the first mating part and the second mating part being mated and connected along a third direction, wherein the first mating part and the second mating part are riveted or bonded together.

18. The relay according to claim 10, characterized in that, One of the two positioning frames has a first positioning protrusion, and the other has a first positioning groove opposite to the first positioning protrusion. The first positioning protrusion and the first positioning groove are positioned and engaged to position the two positioning frames. And / or, the bottom wall of the housing has a second positioning protrusion, wherein one of the positioning frames has a second positioning groove opposite to the second positioning protrusion on the side facing the housing, the second positioning protrusion and the second positioning groove being positioned to position the positioning frame and the housing.

19. The relay according to claim 9, characterized in that, The positioning element is disposed on the side of the lead-out end away from the bottom plate of the housing, or the positioning element is disposed between the lead-out end and the bottom plate of the housing.

20. The relay according to any one of claims 9 to 19, characterized in that, At least a portion of the base plate of the housing has its surface perpendicular to a third direction.

21. The relay according to any one of claims 1 to 19, characterized in that, The lead-out end includes a connecting body and a lead-out body disposed in the connecting body. The connecting body is located in the housing and is electrically connected to the contact assembly. The lead-out body extends out through the housing. The lead-out body is in the form of a sheet, or the lead-out body is in the form of a bend.

22. The relay according to any one of claims 1 to 19, 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 positioning member can support the lead-out end in the contact direction between the moving contact and the stationary contact.

23. The relay according to any one of claims 1 to 19, characterized in that, 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 housing 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.

24. The relay according to claim 23, characterized in that, The moving contact includes a moving spring and a moving contact disposed on the moving spring. The moving spring is movably disposed in the housing along a second direction. The stationary contact includes a stationary contact disposed in the housing 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.

25. The relay according to claim 24, characterized in that, 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.

26. The relay according to claim 24, characterized in that, The mounting body in the positioning component and the moving contact component are spaced apart along a first direction.

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