relay

Abstract

The application relates to a relay. The relay comprises a moving piece and a movable contact assembly; the moving piece is movable and has a mounting hole; the movable contact assembly is mounted on the moving piece through a locking piece; the locking piece comprises a gland and a plurality of elastic arms; the gland is located outside the moving piece and abuts against the moving piece; the elastic arms are arranged in the mounting hole and can be locked by relying on the elastic restoring force of the elastic arms to tightly hold the moving piece, so that the gland can press the movable contact assembly on the moving piece. The relay adopts the pressing mode of the locking piece to mount the movable contact assembly on the moving piece; the elastic arms of the locking piece have a certain elasticity, so that the elastic arms can be smoothly arranged in the mounting hole of the moving piece after being extruded and deformed, and finally locked by relying on the elastic restoring force to tightly hold the moving piece, so that the gland can press the movable contact assembly on the moving piece, and the pollution of the static and movable contacts due to the generation of plastic chips in the assembly process of the movable contact assembly can be effectively avoided.

Description

Technical Field

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

[0002] Relays are automatic switching elements with isolation functions, widely used in remote control, telemetry, communication, automatic control, mechatronics, and power electronic equipment, and are one of the most important control components. Plastic shavings are one of the main contaminants causing poor contact in relays. Most relays use an interference fit to secure the moving spring to the moving part, and friction inevitably generates plastic shavings during this process. Although some plastic shavings can be removed by blowing, brushing, or suction, they cannot be completely eliminated. Residual plastic shavings may migrate to the contact surface through internal equipment movement, contaminating the contacts and thus posing a risk of unreliable contact. Summary of the Invention

[0003] Therefore, it is necessary to provide a relay to address the aforementioned technical problems.

[0004] A relay, comprising:

[0005] Movable component, capable of movement and having mounting holes; and

[0006] The moving contact assembly is mounted on the moving part by a locking member, wherein the locking member includes a pressure cover and multiple elastic arms. The pressure cover is located outside the moving part and abuts against the moving part. The elastic arms pass through the mounting hole and can hold the moving part tightly by their own rebound force to lock it, so that the pressure cover can press the moving contact assembly onto the moving part.

[0007] In one embodiment, there are two elastic arms, which are tilted toward or away from each other so that they can rebound toward or away from each other.

[0008] In one embodiment, the rebound direction of the elastic arm is parallel or perpendicular to the length direction of the moving member.

[0009] In one embodiment, when the two elastic arms rebound in a direction close to each other, there are two mounting holes that correspond one-to-one with each elastic arm.

[0010] When the two elastic arms rebound in a direction away from each other, the mounting hole is set to one or two and corresponds one-to-one with the elastic arms.

[0011] In one embodiment, the end of the elastic arm away from the pressure cap is provided with a claw, which extends along the rebound direction of the elastic arm and abuts against the outer wall of the moving member.

[0012] In one embodiment, the pressure cap has a first limiting portion on the side facing the movable member, and the movable member has a second limiting portion on the side facing the pressure cap. The first limiting portion and the second limiting portion cooperate to limit the pressure cap in a direction perpendicular to the springback direction of the elastic arm.

[0013] In this configuration, one of the first limiting portion and the second limiting portion is a groove, and the other is a protrusion inserted into the groove.

[0014] In one embodiment, the elastic arm is aligned with the first limiting portion in its own rebound direction, or the elastic arm extends from the second limiting portion in a direction away from the pressure cap.

[0015] In one embodiment, there are multiple moving contact components, which are spaced apart along the length direction of the moving member;

[0016] The locking element is provided as at least one, and each locking element is provided between two adjacent moving contact components and presses the two adjacent moving contact components onto the moving element.

[0017] In one embodiment, the moving contact assembly includes a connected moving spring and a receiving member, wherein a moving contact is provided on the side of the moving spring facing away from the receiving member;

[0018] The movable component has a insertion cavity, which includes a through hole and a groove. The through hole is used for the movable spring to pass through, and the pressure cap is used to press the receiving component into the groove through the slot of the groove.

[0019] In one embodiment, the moving contact assembly further includes a compression spring and at least two spindles;

[0020] The mandrel protrudes from the receiving member, and the movable spring is disposed on the mandrel and can move along the axial direction of the mandrel;

[0021] The compression spring is connected between the moving spring and the compression spring, and can provide the moving spring with a force that moves away from the receiving member.

[0022] In one embodiment, the mandrel includes a first shaft segment, a second shaft segment, and a limiting shaft end connected in sequence, wherein the diameters of the first shaft segment and the second shaft segment are different;

[0023] The first shaft segment is movably inserted through the compression spring and is fixedly connected to the receiving member; the second shaft segment is movably inserted through the movable spring; the limiting shaft end is in limiting contact with the movable spring on the side of the movable spring opposite to the compression spring.

[0024] In one embodiment, the free end of the first shaft segment extends out of the receiving member;

[0025] The groove wall facing the through hole of the recessed portion has at least two receiving grooves, which are used to receive the free end of the corresponding mandrel.

[0026] In one embodiment, the insertion cavity is provided with a stop portion, which is located at the junction between the through hole portion and the groove portion and abuts against the receiving member.

[0027] In one embodiment, the relay further includes a base and a cover plate;

[0028] The base has a partition section that divides the inner cavity of the base into a magnetic circuit cavity and a contact cavity. The movable member is movably disposed in the contact cavity, and the cover plate is disposed at the bottom of the base to close the contact cavity.

[0029] The partition is provided with a limiting track on the side facing the movable member, and / or the cover is provided with a limiting track on the side facing the movable member, and the movable member is slidably assembled along the limiting track.

[0030] In one embodiment, the mounting hole is arranged in a direction perpendicular to the direction from the magnetic circuit cavity to the contact cavity.

[0031] Compared to the interference fit mounting method used in traditional relays for the moving contact component, this application uses a locking member pressing method to mount the moving contact component onto the moving component. The elastic arm of the locking member has a certain elasticity, allowing it to smoothly insert into the mounting hole of the moving component after being compressed and deformed. Ultimately, it relies on its own rebound force to hold the moving component and lock it in place. This allows the gland to press the moving contact component onto the moving component. This eliminates the need to apply significant installation force to the moving contact component to achieve an interference fit with the moving component, effectively preventing the moving contact component from contaminating the static and moving contacts due to plastic debris during assembly, improving the reliability of the static and moving contact, and effectively securing and limiting the moving contact component. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the moving part and moving contact assembly of the relay provided in Embodiment 1 of this application, viewed from a first angle.

[0033] Figure 2This is a schematic diagram of the moving part and moving contact assembly of the relay provided in Embodiment 1 of this application, viewed from a second angle.

[0034] Figure 3 This is a structural schematic diagram of the moving part and moving contact assembly of the relay provided in Embodiment 1 of this application, viewed from a third angle.

[0035] Figure 4 for Figure 3 A cross-sectional view of the provided moving part and dynamic contact assembly at point AA.

[0036] Figure 5 This is a structural schematic diagram of the movable component provided in Embodiment 1 of this application, viewed from a first angle.

[0037] Figure 6 This is a structural schematic diagram of the movable component provided in Embodiment 1 of this application, viewed from a second angle.

[0038] Figure 7 This is a structural schematic diagram of the locking member provided in Embodiment 1 of this application, viewed from a first angle.

[0039] Figure 8 This is a structural schematic diagram of the locking member provided in Embodiment 1 of this application, viewed from a second angle.

[0040] Figure 9 This is a cross-sectional view of the relay provided in Embodiment 1 of this application.

[0041] Figure 10 This is a schematic diagram showing the distribution of four elastic arms on the gland, provided for another embodiment of this application.

[0042] Figure 11 for Figure 1 A partially enlarged schematic diagram of the provided moving part and dynamic contact assembly at point B.

[0043] Figure 12 This is a schematic diagram of the structure of the dynamic contact assembly provided in Embodiment 1 of this application.

[0044] Figure 13 This is a schematic diagram of the compression spring of the moving contact assembly provided in Embodiment 1 of this application.

[0045] Figure 14 This is a schematic diagram of the mandrel structure of the moving contact assembly provided in Embodiment 1 of this application.

[0046] Figure 15 This is a schematic diagram of the cover plate provided in Embodiment 1 of this application.

[0047] Figure 16 This is a schematic diagram of the locking component of the relay provided in Embodiment 2 of this application.

[0048] The labels in the attached diagram are explained as follows:

[0049] 10. Relay; 100. Moving part; 110. Mounting hole; 120. Second limiting part; 130. Insertion cavity; 131. Through hole; 132. Groove; 133. Stop; 140. Receiving groove; 150. Limiting protrusion; 200. Moving contact assembly; 210. Moving spring; 211. Moving contact; 220. Receiving part; 230. Spindle; 231. First shaft section; 232. Second shaft section; 233. Limiting shaft end; 240. Compression spring; 241. Center of compression spring; 241a. 242. Compression spring shaft hole; 243. Compression spring extension; 300. Bending abutment part; 310. Locking element; 311. Pressure cover; 311. First limiting part; 320. Elastic arm; 330. Claw; 400. Magnetic circuit structure; 410. Yoke; 420. Magnetic component; 421. Permanent magnet; 422. Magnetic conductor; 430. Coil assembly; 500. Driving element; 600. Base; 610. Separator; 600a. Magnetic circuit cavity; 600b. Contact cavity; 700. Cover plate; 710. Limiting track. Detailed Implementation

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] Example 1

[0057] This embodiment provides a relay 10, such as Figures 1 to 4 As shown, the relay 10 includes a movable member 100 and a moving contact assembly 200; the movable member 100 is movable and has a mounting hole 110 (see [reference]). Figure 5 and Figure 6The moving contact assembly 200 is mounted on the moving part 100 via the locking member 300, wherein, for example... Figure 7 and Figure 8 As shown, the locking member 300 includes a pressure cover 310 and a plurality of elastic arms 320. The pressure cover 310 is located outside the movable member 100 and abuts against the movable member 100. The elastic arms 320 pass through the mounting hole 110 and can lock the movable member 100 by relying on their own rebound force, so that the pressure cover 310 can press the moving contact assembly 200 onto the movable member 100.

[0058] The relay 10 can be an electromagnetic relay, a motor relay, a magnetic latching relay, etc.

[0059] As an example, such as Figure 9 As shown, the relay 10 may be a magnetic latching relay, and may also include a base 600, a cover 700, a magnetic circuit structure 400, a drive element 500, and a static contact assembly.

[0060] The base 600 has a partition 610 inside, which is used to divide the inner cavity of the base 600 into a magnetic circuit cavity 600a and a contact cavity 600b. A cover plate 700 is provided at the bottom of the base 600 to close the contact cavity 600b.

[0061] The magnetic circuit structure 400 is disposed in the magnetic circuit cavity 600a and may include a yoke 410, a magnetic component 420, and a coil assembly 430. The magnetic component 420 is disposed in the magnetic circuit space enclosed by the yoke 410 and includes two opposing permanent magnets 421 and a movable magnetic conductor 422. The coil assembly 430 is fixedly disposed relative to the yoke 410 and surrounds the outer periphery of the magnetic component 420. The coil assembly 430 is configured to drive the magnetic conductor 422 to move between the two permanent magnets 421 in response to an input signal. Optionally, the permanent magnets 421 are magnetic steel; the magnetic conductor 422 is an iron core.

[0062] The movable element 100 is movably disposed within the contact cavity 100b and is connected to the magnetic conductor 422 via the drive element 500. The static contact assembly and the moving contact assembly 200 constitute the contact system of the relay 10, and both are disposed within the contact cavity 100b. The movable element 100 is capable of driving the contact system to switch between a closed state and an open state.

[0063] This type of relay 10 has a dual-drive magnetic circuit structure, which enables rapid switching of the relay 10 contacts, making the relay 10 suitable for use in electrical appliances that require high computing power, such as AI servers.

[0064] Compared with the interference fit installation method of the moving contact component in the traditional relay, the above-mentioned relay 10 uses the locking member 300 to press the moving contact component 200 onto the moving member 100. The elastic arm 320 of the locking member 300 has a certain elasticity, so that after the elastic arm 320 is deformed by compression, it can be smoothly inserted into the mounting hole 110 of the moving member 100, and finally rely on its own rebound force to hold the moving member 100 and lock it. Thus, the cover 310 can press the moving contact component 200 onto the moving member 100. This does not require applying a large installation force to the moving contact component 200 to achieve an interference fit with the moving member 100. It can effectively avoid the moving contact component 200 from contaminating the static and moving contacts due to the generation of plastic shavings during the assembly process, improve the reliability of the static and moving contact contact, and effectively fasten and limit the moving contact component 200.

[0065] like Figure 7 and Figure 8 As shown, in this embodiment, there are two elastic arms 320, which are tilted towards each other so that they can rebound in the same direction. Tiltping the elastic arms 320 facilitates their rebound and effectively grips the moving member 100. Figure 7 The arrow in the figure represents the direction of springback of the elastic arm 320.

[0066] Of course, in some other embodiments, the number of elastic arms 320 may be greater than two, and all elastic arms 320 are arranged in a circle around the central axis of the locking cover 310, and all elastic arms 320 spring back towards the central axis of the locking cover 310. Figure 10 A schematic diagram of the distribution of the four elastic arms 320 on the locking cover 310 is given.

[0067] Regarding the tilt angle of the elastic arm 320, that is, the angle between the elastic arm 320 and the central axis of the locking member 300, this embodiment does not impose specific restrictions. As long as the elastic arm 320 can be smoothly inserted into the mounting hole 110 of the moving member 100 without failing to spring back due to excessive deformation, and also has sufficient spring force to clamp the moving member 100, for example, it can be set to 10°, 15°, 20°, etc.

[0068] In order for the two elastic arms 320 to spring back and grip the moving member 100 in a direction close to each other, such as Figures 4 to 6 As shown, there are two mounting holes 110, each corresponding to one of the elastic arms 320. The distance W2 between the two mounting holes 110 is less than the minimum distance W1 between the two elastic arms 320 in their natural state. It should be noted that the natural state of the elastic arm 320 refers to the state in which the elastic arm 320 is not under force.

[0069] Among them, such as Figure 4As shown, the diameter of the mounting hole 110 can be slightly larger than the thickness of the corresponding elastic arm 320. This design allows the elastic arm 320 to pass smoothly through the mounting hole 110, avoiding excessive compression of the inner wall of the mounting hole 110 during the process of passing through it, thereby further reducing the probability of plastic debris generation.

[0070] In this embodiment, such as Figure 4 , Figure 7 and Figure 8 As shown, the end of the elastic arm 320 away from the pressure cap 310 is provided with a claw 330. The claw 330 extends along the springback direction of the elastic arm 320 and abuts against the outer wall of the moving member 100. The claw 330 can limit the elastic arm 320 in the insertion direction of the elastic arm 320 by cooperating with the pressure cap 310, so as to prevent the elastic arm 320 from shaking (or even falling out of the mounting hole 110 of the moving member 100).

[0071] Among them, the claws 330 of the two elastic arms 320 extend in a direction close to each other.

[0072] In this embodiment, such as Figure 7 and Figure 11 As shown, the pressure cap 310 has a first limiting part 311 on the side facing the movable member 100, and the movable member 100 has a second limiting part 120 on the side facing the pressure cap 310. The first limiting part 311 and the second limiting part 120 cooperate to limit the pressure cap 310 in a direction perpendicular to the springback direction of the elastic arm 320. Through the cooperation of the first limiting part 311 and the second limiting part 120, the elastic arm 320 can be limited in a direction perpendicular to the insertion direction and the springback direction of the elastic arm 320, preventing the elastic arm 320 from shaking, thereby enabling the moving contact assembly 200 to be firmly installed on the movable member 100.

[0073] As an example, the second limiting portion 120 is a groove, and the first limiting portion 311 is a protrusion inserted into the groove. In this example, as... Figure 7 As shown, the elastic arm 320 extends from the second limiting portion 120 in a direction away from the pressure cover 310. This arrangement allows the elastic arm 320 to connect to the second limiting portion 120 without connecting to the pressure cover 310, giving the pressure cover 310 a larger area to press the actuating contact assembly 200, and also reducing the size of the pressure cover 310, resulting in a more compact structure. See also... Figure 7 The second limiting part 120 can extend from one end of the pressure cover 310 to the other end along the springback direction of the elastic arm 320.

[0074] As another example, the first limiting part 311 is a groove, and the second limiting part 120 is a protrusion inserted into the groove. Figure 4As shown, in this example, the elastic arm 320 is aligned with the first limiting part 311 in the rebound direction. This arrangement does not affect the cooperation between the first limiting part 311 and the second limiting part 120, and also allows the pressure cap 310 to have a larger area in the direction perpendicular to the insertion direction and the rebound direction of the elastic arm 320 to press the movable contact assembly 200.

[0075] In this embodiment, such as Figures 1 to 3 As shown, multiple moving contact components 200 are provided, and these multiple moving contact components 200 are spaced apart along the length direction of the moving member 100. Providing multiple moving contact components 200 increases the current-carrying area, making the relay 10 suitable for high-current electrical appliances, such as high-computing-power AI servers. Optionally, as... Figure 12 As shown, the moving contact assembly 200 has a moving contact 211 at each end along the width direction of the moving member 100.

[0076] See also Figures 1 to 3 At least one locking element 300 is provided, and each locking element 300 is located between two adjacent moving contact components 200, pressing the two adjacent moving contact components 200 onto the moving component 100. During installation, the two adjacent moving contact components 200 are first inserted into the moving component 100, and then the locking element 300 is inserted into the corresponding mounting hole 110 on the moving component 100. This achieves locking of the two adjacent moving contact components 200, which simplifies the disassembly and assembly steps of the moving contact components 200 and reduces the number of locking elements 300. In addition, this arrangement of locking elements 300 and moving contact components 200, i.e., one locking element 300 corresponds to two moving contact components 200, facilitates switching and can also meet the requirements for large gaps.

[0077] Optionally, the two moving contact components 200 share a single locking element 300. For example, such as... Figures 1 to 3 As shown, there are four moving contact assemblies 200 along the length of the moving member 100. The two moving contact assemblies 200 on the left share a locking member 300, and the two moving contact assemblies 200 on the right share a locking member 300.

[0078] Optionally, the first limiting part 311 is provided in the middle of the pressure cover 310, and the two ends of the pressure cover 310 along the length direction of the moving member 100 are press-fitted with two adjacent moving contact components 200.

[0079] In this embodiment, the length direction of the movable member 100 is perpendicular to the rebound direction of the elastic arm 320, that is, the two elastic arms 320 are arranged at intervals along the width direction of the movable member 100. This arrangement not only allows the two elastic arms 320 to be spaced apart at the middle of the pressure cover 310 along the width direction of the movable member 100, so that the two ends of the pressure cover 310 along the length direction of the movable member 100 have sufficient area to press the moving contact assembly 200, but also allows the elastic arms 320 to have a large rebound space, which can effectively hold the movable member 100.

[0080] Of course, in some other embodiments, the length direction of the moving member 100 may also be parallel to the springback direction of the elastic arm 320, that is, the two elastic arms 320 are arranged at intervals along the length direction of the moving member 100.

[0081] In this embodiment, such as Figure 11 As shown, the moving contact assembly 200 includes a connected moving spring 210 and a receiving member 220. A plurality of moving contacts 211 are provided on the side of the moving spring 210 facing away from the receiving member 220; see also... Figure 5 and Figure 6 The movable member 100 has a insertion cavity 130, which includes a through hole 131 and a groove 132. The through hole 131 is used for the movable spring 210 to pass through, and the pressure cap 310 is used to press the receiving member 220 into the groove 132 through the groove opening. During installation, the movable spring 210 and the receiving member 220 of the movable contact assembly 200 can be inserted into the through hole 131 and the groove 132 respectively on the groove opening side of the groove 132. After the pressure cap 310 abuts against the bottom of the groove 132, the pressure cap 310 is then fastened onto the movable member 100, thereby pressing the movable contact assembly 200 onto the movable member 100.

[0082] In this embodiment, such as Figure 12 As shown, the moving contact assembly 200 also includes a compression spring 240 and at least two spindles 230. The spindles 230 protrude from the receiving member 220. The moving spring 210 is disposed on the spindle 230 and is capable of moving along the axial direction of the spindle 230. The compression spring 240 connects the moving spring 210 and the receiving member 220 and is capable of providing a force to the moving spring 210 that moves away from the receiving member 220. As an example, there are two spindles 230 along the width direction of the moving spring 210 or two along the length direction of the moving spring 210.

[0083] With the above configuration, firstly, there are at least two spindles 230, instead of using only one spindle 230 to assemble the pressure spring 240 and the moving spring 210 relative to each other. Therefore, the two or more spindles 230 between the moving spring 210 and the pressure spring 240 prevent the moving contact assembly 200 from rotating on a fixed axis based on the fixed axis of rotation provided by one spindle 230. Instead, two or more spindles 230 are used to resist the circumferential rotation of the moving contact assembly 200, thereby ensuring that the moving contact 211 of the contact assembly and the stationary contact of the stationary contact assembly can form a precise alignment contact, improving the stability of the contact. Secondly, when the moving contact assembly 200 moves closer to or further away from the stationary contact assembly 200, and when the moving contact assembly 200 contacts or separates from the stationary contact assembly, both the moving spring 210 and the pressure spring 240 can slide relative to the spindle 230 in the axial direction after being subjected to force, thereby forming a buffer and adaptive adjustment, improving motion stability and safety.

[0084] In one embodiment, such as Figure 13 As shown, the compression spring 240 may include a compression spring center portion 241 and two compression spring extension portions 242 located on both sides of the compression spring center portion 241. The compression spring center portion 241 has a compression spring shaft hole 241a through which the mandrel 230 passes. The receiving member 220 elastically abuts against the compression spring center portion 241 of the compression spring 240. The compression spring center portion 241 may be designed as a quadrilateral region, and the compression spring extension portions 242 may be configured as elongated plate structures, with the width of the compression spring extension portions 242 gradually decreasing in the direction away from the compression spring center portion 241. Simultaneously, a bent abutment portion 243 is provided at the outer end of the compression spring extension portions 242, and the bent abutment portion 243 elastically abuts against the movable spring 210.

[0085] In one embodiment, such as Figure 14 As shown, the mandrel 230 includes a first shaft segment 231, a second shaft segment 232, and a limiting shaft end 233 connected in sequence. The diameters of the first shaft segment 231 and the second shaft segment 232 are different. Therefore, the diameters of the first shaft segment 231 and the second shaft segment 232 can be designed to match based on the dimensions of the compression spring shaft hole 241a and the moving spring shaft hole (i.e., the through hole on the moving spring 210 for the mandrel 230 to pass through), for example, with an appropriate clearance fit. In one embodiment, the diameter of the first shaft segment 231 is smaller than the diameter of the second shaft segment 232.

[0086] At this time, the first shaft segment 231 is movably inserted through the spring shaft hole 241a of the spring plate 240, and the first shaft segment 231 is fixedly connected to the receiving member 220. The second shaft segment 232 is movably inserted through the spring shaft hole of the movable spring plate 210. The limiting shaft end 233 has a larger structural size, so that the limiting shaft end 233 can make limiting contact with the movable spring plate 210 on the side of the movable spring plate 210 away from the spring plate 240, preventing the movable spring plate 210 and the spring plate 240 from detaching from the spindle 230 and ensuring the assembly stability of the component.

[0087] The first shaft segment 231 extends out of the receiving member 220 and is riveted to the receiving member 220. Optionally, as follows... Figure 6 As shown, the groove wall of the recess 132 facing the through hole 131 has at least two receiving grooves 140, which are used to receive the free end of the corresponding first shaft segment 231 (i.e., the end of the first shaft segment 231 away from the limiting shaft end 233). The recess 132 can avoid the free end of the first shaft segment 231, so that the receiving member 220 can abut against the groove wall of the recess 132, which can prevent the moving contact assembly 200 from shaking in the length direction of the moving member 100 and ensure the secure installation of the moving contact assembly 200 on the moving member 100.

[0088] See also Figure 6 The insertion cavity 130 is provided with a stop portion 133, which is located at the junction between the through hole portion 131 and the groove portion 132 and abuts against the receiving member 220. The stop portion 133 can limit the receiving member 220 of the moving contact assembly 200 to be located in the groove portion 132, preventing the moving contact assembly 200 from shaking in the length direction of the moving member 100.

[0089] As described above, the movable member 100 is capable of moving within the contact cavity 100b, thereby driving the contact system to switch between a closed state and an open state. In one embodiment, as... Figure 15 As shown, the cover plate 700 has a limiting track 710 on the side facing the moving member 100, and the moving member 100 is slidably assembled along the limiting track 710. This arrangement allows the moving member 100 to drive the moving contact assembly 200 to move relative to the stationary contact assembly within the base 600 along a predetermined trajectory. Simultaneously, as... Figure 4 , Figure 6 and Figure 9 As shown, a limiting protrusion 150 may also be provided on the side of the movable part 100 facing the cover plate 700, so that the movable part 100 can be slidably assembled with the limiting rail 710 through the limiting protrusion 150.

[0090] Of course, a limiting rail can also be provided on the side of the partition 610 of the base 600 facing the moving part 100, and the moving part 100 can be slidably assembled along the limiting rail.

[0091] Based on the feature that the movable part 100 has a limiting protrusion 150, this application adopts Figure 6 The locking member 300 is installed using a side-insertion method, i.e., the mounting hole 110 is perpendicular to the direction from the magnetic circuit cavity 600a to the contact cavity 600b (i.e., Figure 6 (Up and down direction) setting. If using... Figure 6 To insert the locking member 300 in the vertical direction, it is necessary to open the mounting hole 110 on the side of the movable member 100 facing the cover plate 700 or the side facing the partition 610. It is also necessary to have sufficient space on the side of the movable member 100 facing the cover plate 700 or the side facing the partition 610 to place the locking cover 310 of the locking member 300. This is not conducive to setting the limiting protrusion 150 that cooperates with the limiting track on the side of the movable member 100 facing the cover plate 700 or the side facing the partition 610. Therefore, this application adopts the side insertion method to insert the locking member 300 onto the movable member 100.

[0092] Example 2

[0093] This embodiment provides a relay 10, such as Figure 11 As shown, unlike the relay 10 provided in Embodiment 1, the two elastic arms 320 of this embodiment are tilted in a direction away from each other so that the two elastic arms 320 can rebound in a direction away from each other.

[0094] As an example, the mounting hole 110 may be a single hole, the width of which is less than the maximum spacing between the two elastic arms 320 in their natural state.

[0095] As another example, there may also be two mounting holes 110, with the distance between the two mounting holes 110 being less than the maximum spacing between the two elastic arms 320 in their natural state.

[0096] In this embodiment, the claws 330 of the two elastic arms 320 extend in a direction away from each other.

[0097] Compared with the interference fit installation method of the moving contact component in the relay 10, this embodiment uses the locking member 300 to press the moving contact component 200 onto the moving member 100. The elastic arm 320 of the locking member 300 has a certain elasticity, so that after the elastic arm 320 is deformed by compression, it can be smoothly inserted into the mounting hole 110 of the moving member 100, and finally rely on its own rebound force to hold the moving member 100 and lock it. Thus, the cover 310 can press the moving contact component 200 onto the moving member 100 without applying a large installation force to the moving contact component 200 to achieve an interference fit with the moving member 100. This can effectively avoid the moving contact component 200 from contaminating the static and moving contacts due to the generation of plastic shavings during the assembly process, improve the reliability of the static and moving contact, and effectively fasten and limit the moving contact component 200.

[0098] 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.

[0099] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A relay, characterized in that, include: The movable component is designed to move and has mounting holes. as well as The moving contact assembly is mounted on the moving part by a locking member, wherein the locking member includes a pressure cover and multiple elastic arms. The pressure cover is located outside the moving part and abuts against the moving part. The elastic arms pass through the mounting hole and can hold the moving part tightly by their own rebound force to lock it, so that the pressure cover can press the moving contact assembly onto the moving part.

2. The relay according to claim 1, characterized in that, Therefore, there are two elastic arms, which are tilted in a direction that is close to or far from each other, so that the two elastic arms can rebound in a direction that is close to or far from each other.

3. The relay according to claim 2, characterized in that, The rebound direction of the elastic arm is parallel or perpendicular to the length direction of the moving part.

4. The relay according to claim 2, characterized in that, When the two elastic arms rebound in a direction close to each other, there are two mounting holes, each corresponding to one of the elastic arms. When the two elastic arms rebound in a direction away from each other, the mounting hole is set to one or two and corresponds one-to-one with the elastic arms.

5. The relay according to claim 1, characterized in that, The end of the elastic arm away from the pressure cover is provided with a claw, which extends along the rebound direction of the elastic arm and abuts against the outer wall of the moving part.

6. The relay according to claim 1, characterized in that, The pressure cap has a first limiting part on the side facing the moving member, and the moving member has a second limiting part on the side facing the pressure cap. The first limiting part and the second limiting part cooperate to limit the pressure cap in a direction perpendicular to the springback direction of the elastic arm. In this configuration, one of the first limiting portion and the second limiting portion is a groove, and the other is a protrusion inserted into the groove.

7. The relay according to claim 6, characterized in that, The elastic arm is aligned with the first limiting portion in its own rebound direction, or the elastic arm extends from the second limiting portion in a direction away from the pressure cap.

8. The relay according to any one of claims 1 to 7, characterized in that, The moving contact components are provided in multiple ways, and the multiple moving contact components are spaced apart along the length direction of the moving part; The locking element is provided as at least one, and each locking element is provided between two adjacent moving contact components and presses the two adjacent moving contact components onto the moving element.

9. The relay according to any one of claims 1 to 7, characterized in that, The moving contact assembly includes a connected moving spring and a receiving member, and the side of the moving spring facing away from the receiving member is provided with a plurality of moving contacts; The movable component has a insertion cavity, which includes a through hole and a groove. The through hole is used for the movable spring to pass through, and the pressure cap can press the receiving component into the groove through the slot of the groove.

10. The relay according to claim 9, characterized in that, The moving contact assembly also includes a compression spring and at least two spindles; The mandrel protrudes from the receiving member, and the movable spring is disposed on the mandrel and can move along the axial direction of the mandrel; The compression spring is connected between the moving spring and the compression spring, and can provide the moving spring with a force that moves away from the receiving member.

11. The relay according to claim 10, characterized in that, The mandrel includes a first shaft segment, a second shaft segment, and a limiting shaft end connected in sequence, wherein the diameter of the first shaft segment and the diameter of the second shaft segment are different; The first shaft segment is movably inserted through the compression spring and is fixedly connected to the receiving member; the second shaft segment is movably inserted through the movable spring; the limiting shaft end is in limiting contact with the movable spring on the side of the movable spring opposite to the compression spring.

12. The relay according to claim 11, characterized in that, The free end of the first shaft segment extends out of the receiving member; The groove wall facing the through hole of the groove portion has at least two receiving grooves, which are used to receive the free end of the corresponding first shaft segment.

13. The relay according to claim 9, characterized in that, The insertion cavity is provided with a stop portion, which is located at the junction between the through hole portion and the groove portion and abuts against the receiving member.

14. The relay according to any one of claims 1 to 7, characterized in that, The relay also includes a base and a cover plate; The base has a partition section that divides the inner cavity of the base into a magnetic circuit cavity and a contact cavity. The movable member is movably disposed in the contact cavity, and the cover plate is disposed at the bottom of the base to close the contact cavity. The partition is provided with a limiting track on the side facing the movable member, and / or the cover is provided with a limiting track on the side facing the movable member, and the movable member is slidably assembled along the limiting track.

15. The relay according to claim 14, characterized in that, The mounting hole is provided in a direction perpendicular to the direction from the magnetic circuit cavity to the contact cavity.

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