Relay

Abstract

The invention provides a relay, a base is internally provided with a contact cavity, the contact cavity is internally provided with an inner cover plate fixing part, a static spring fixing part and a movable spring assembling part, a contact system comprises a moving part, the moving part is movably assembled on the movable spring assembling part of the contact cavity along a preset moving direction, and the moving part is configured to be used for installing a movable contact assembly. The inner cover plate is installed on the inner cover plate fixing part, the inner cover plate makes limiting contact with the moving part, and the inner cover plate is configured to be used for limiting the moving part to move in the direction away from the contact cavity. The inner cover plate is in limiting contact with the moving part, so that the moving part can be limited to move in the direction far away from the contact cavity, the moving contact assembly is further limited to move in the direction far away from the contact cavity, and therefore it is guaranteed that the moving contact of the moving contact assembly does not move unexpectedly. Therefore, the relative position relation between the movable contact of the movable contact assembly and the static contact of the static contact assembly is always in a preset design state, and accurate detection of related parameters is facilitated.

Description

Technical Field

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

[0002] Relays, as control components, are driving devices that use small current to control large current, and are widely used in aerospace, automotive, home appliances, industrial control, and other fields. With the rapid development of the Internet, Internet data centers are crucial for supporting Internet services. Magnetic latching relays are typically used in their power supply circuits for power switching control, ensuring that in the event of a main power failure, the relay can quickly switch to a backup power supply upon receiving a control signal, thus minimizing losses due to the failure.

[0003] To ensure the operational quality of relays, it is necessary to test the assembly parameters of relay components during the production process. This is especially true for certain double-switching relays, where the specific structural design makes it difficult to incorporate a test window structure within the relay, thus hindering the monitoring of relevant parameters during production. Furthermore, parameter consistency is often crucial for different types of relays. These parameters include, for example, the spacing between contacts. Therefore, how to conveniently monitor these key parameters during production has become a pressing technical problem for those skilled in the art. Summary of the Invention

[0004] Therefore, it is necessary to provide a relay to address the aforementioned technical problems.

[0005] This application provides a relay, the relay comprising:

[0006] The base has a contact cavity inside, and the contact cavity is provided with an inner cover plate fixing part, a static spring fixing part and a dynamic spring assembly part;

[0007] A contact system, the contact system including a movable member movably mounted in a spring assembly of the contact cavity along a predetermined direction of movement, the movable member being configured for mounting a dynamic contact assembly;

[0008] An inner cover plate is mounted on the inner cover plate fixing part and makes limiting contact with the moving member. The inner cover plate is configured to restrict the movement of the moving member in a direction away from the contact cavity.

[0009] In one embodiment, the base has an X-axis direction, a Y-axis direction, and a Z-axis direction, the plane containing the X-axis direction and the Y-axis direction is parallel to the bottom surface of the contact cavity, and the Z-axis direction is perpendicular to the plane containing the X-axis direction and the Y-axis direction;

[0010] The movable member is movably assembled in the contact cavity along the Y-axis direction to a dynamic spring assembly, and the inner cover plate is configured to restrict the movement of the movable member in the Z-axis direction.

[0011] In one embodiment, the stationary spring fixing portion is configured as a fixing groove disposed in the contact cavity; and / or,

[0012] The number of the stationary spring fixing parts is configured to be a plurality, and each of the stationary spring fixing parts is configured to mount a stationary contact assembly; and / or,

[0013] The movable spring assembly is configured as a sliding groove in the contact cavity, and the moving member is slidably assembled in the sliding groove; and / or

[0014] The inner cover plate avoids at least one of the stationary spring fixing portion and the dynamic spring assembly portion in the Z-axis direction; and / or

[0015] The inner cover plate includes a connected central plate area and at least one extension plate area, and the width of the extension plate area is smaller than the width of the central plate area; wherein, in the mating state of the inner cover plate relative to the base, its dimension in the X-axis direction is its width, and its dimension in the Y-axis direction is its length, and the central plate area and the extension plate area are distributed relative to each other in the Y-axis direction.

[0016] In one embodiment, the movable member has a connected main body segment and at least one mounting segment, the mounting segment having a movable spring mounting cavity configured for mounting a movable contact assembly; the inner cover plate makes limiting contact with the main body segment of the movable member; and / or,

[0017] The inner cover plate includes a central plate area and two extension plate areas. The two extension plate areas are disposed at both ends of the length direction of the central plate area in the Y-axis direction. The width of the central plate area is greater than the width of the sliding groove, and the width of the extension plate areas is less than the width of the sliding groove.

[0018] In one embodiment, a sliding track is provided in the contact cavity, and the moving member is slidably assembled in the sliding groove along the sliding track; the moving member is provided with a sliding protrusion, and the moving member is slidably assembled with the sliding track through the sliding protrusion; and / or,

[0019] The movable component has a connected main body segment and two mounting segments, the two mounting segments being respectively disposed at both ends of the main body segment along the Y-axis direction, and the length of the main body segment in the Y-axis direction being greater than the length of any other main body segment in the Y-axis direction; and / or,

[0020] The main body segment has at least one lateral protrusion on each side in the X-axis direction, and the main body segment slides and engages with the inner walls of the sliding groove on both sides through the lateral protrusions on both sides.

[0021] In one embodiment, the sliding track includes a first track groove formed on the bottom surface of the contact cavity of the base and two first track walls disposed on both sides of the first track groove. The first track groove is configured as a straight groove, the first track walls are configured as straight walls, and the inner sides of the two first track walls are in the same plane as the inner groove walls on both sides of the first track groove.

[0022] In one embodiment, the relay includes:

[0023] An outer cover plate is provided in the contact cavity, and the outer cover plate is installed in the outer cover plate fixing part.

[0024] In one embodiment, the outer cover plate makes limiting contact with the movable member, and the outer cover plate is configured to restrict movement of the movable member in a direction away from the contact cavity; and / or

[0025] The outer cover plate has several static spring outlet holes.

[0026] In one embodiment, the outer cover plate is provided with a limiting track, and the movable component is slidably assembled along the limiting track; the movable component is provided with a limiting protrusion, and the movable component is slidably assembled with the limiting track through the limiting protrusion.

[0027] In one embodiment, the limiting track includes a second track groove formed on the surface of the outer cover plate and two second track walls disposed on both sides of the second track groove. The second track groove is configured as a straight groove, and the second track walls are configured as straight walls, with the inner surfaces of the two second track walls in the same plane as the inner groove walls on both sides of the second track groove; and / or,

[0028] The height of the limiting protrusion protruding from the moving member is greater than the height of the sliding protrusion protruding from the moving member, and the sum of the depth of the second track groove and the height of the second track wall is greater than the sum of the depth of the first track groove and the height of the first track wall.

[0029] In one embodiment, the inner cover plate fixing part is configured as an inner cover plate fixing hole disposed in the contact cavity, the inner cover plate is provided with an inner cover plate fixing post, and the inner cover plate fixing post is inserted into the inner cover plate fixing hole; and / or,

[0030] The outer cover plate fixing part is configured as an outer cover plate fixing hole in the contact cavity, and the outer cover plate is provided with an outer cover plate fixing post, which is inserted into the outer cover plate fixing hole.

[0031] In one embodiment, the inner cover plate is provided with two inner cover plate fixing posts, and the number of inner cover plate fixing parts is configured to be two and matched with the two inner cover plate fixing posts. The two inner cover plate fixing posts are located at both ends in the width direction of the central plate area of ​​the inner cover plate, and the straight-line distance between the two inner cover plate fixing posts is greater than the width of the sliding groove; and / or,

[0032] The number of the outer cover plate fixing parts is configured to be even, and they are arranged in pairs, wherein two of the outer cover plate fixing parts in a pair are aligned with two of the inner cover plate fixing posts in the X-axis direction; and / or,

[0033] The end of the inner cover plate fixing post is provided with a first guide section; and / or,

[0034] A second guide section is provided at the end of the outer cover plate fixing column.

[0035] In one embodiment, the relay further includes:

[0036] The magnetic circuit system has a magnetic circuit cavity inside the base. The magnetic circuit cavity is connected to the contact cavity through a linkage channel. The magnetic circuit system is assembled in the magnetic circuit cavity and is drivenly connected to the contact system in the contact cavity through the linkage channel.

[0037] In one embodiment, the magnetic circuit system includes a coil assembly and a transmission assembly. The transmission assembly includes an iron core, a contact sleeve, and a push arm. The contact sleeve has an axially penetrating inner cavity and is fitted onto the outside of the iron core based on the inner cavity. The push arm is connected to the contact sleeve. The contact sleeve of the transmission assembly is movably fitted into the coil assembly, and the push arm of the transmission assembly is drivenly connected to the contact system.

[0038] In one embodiment, at least one of the outer wall of the contact sleeve and the inner wall of the coil assembly is provided with a plurality of contact protrusions.

[0039] In one embodiment, the relay further includes:

[0040] Wireframe;

[0041] The first coil unit is disposed on the wall of the wire frame cylinder of the wire frame, and the first coil unit has a first coil space inside. The iron core and one end of the contact sleeve are movably assembled in the first coil space of the first coil unit.

[0042] The second coil unit is disposed on the wall of the wire frame cylinder of the wire frame, and the interior of the second coil unit has a second coil space. The other end of the iron core and the contact sleeve are movably assembled in the second coil space of the second coil unit.

[0043] The outer wall of the contact sleeve is provided with a plurality of contact protrusions, and the plurality of contact protrusions make point contact or line contact with the inner wall of the first coil space and at least one of the first coil space.

[0044] In the aforementioned relay, the parameters that need to be measured during relevant parameter testing include the distance between the moving contact of the moving contact assembly and the stationary contact of the stationary contact assembly. To ensure that the distance between the moving contact of the moving contact assembly and the stationary contact of the stationary contact assembly remains stable, this application designs a structure in the relay assembly that both exposes the moving contact of the moving contact assembly and the stationary contact of the stationary contact assembly without affecting parameter testing, and ensures that the moving contact of the moving contact assembly does not move unexpectedly. Specifically, an inner cover plate is added to the relay, which restricts the movement of the moving component in a direction away from the contact cavity.

[0045] After the inner cover plate is fixedly assembled relative to the base via the inner cover plate fixing part, the inner cover plate can make limiting contact with the moving part, so that the inner cover plate can be configured to restrict the movement of the moving part in a direction away from the contact cavity, thereby restricting the movement of the moving contact assembly in a direction away from the contact cavity. This ensures that the moving contact of the moving contact assembly does not move unexpectedly, and that the relative positional relationship between the moving contact of the moving contact assembly and the stationary contact of the stationary contact assembly is always in the preset design state, which facilitates the accurate detection of relevant parameters. Attached Figure Description

[0046] Figure 1 This is a cross-sectional view of the contact system assembly of a relay provided in one embodiment of this application.

[0047] Figure 2 For example Figure 1 The diagram shows an exploded 3D view of the relay's contact system assembly.

[0048] Figure 3 For example Figure 1 The diagram shows a three-dimensional structure of the relay base.

[0049] Figure 4 For example Figure 1The diagram shows a three-dimensional structure of the static contact assembly mounted on the base.

[0050] Figure 5 For example Figure 1 The diagram shows a three-dimensional structure of the moving contact assembly assembled on the moving part.

[0051] Figure 6 For example Figure 5 The diagram shows a planar structure of the moving contact assembly assembled on the moving part.

[0052] Figure 7 For example Figure 1 The diagram shows the inner cover structure of the relay.

[0053] Figure 8 For example Figure 1 The diagram shows the structure of the outer cover plate of the relay.

[0054] Figure 9 For example Figure 3 A partially enlarged schematic diagram of the base shown.

[0055] Figure 10 For example Figure 8 A partially enlarged schematic diagram of the base shown.

[0056] Figure 11 This is a cross-sectional schematic diagram of a relay provided in one embodiment of this application.

[0057] Figure 12 This is a plan view of the inner cover plate and the base provided in one embodiment of this application.

[0058] Figure 13 This is a perspective view of the inner cover plate and the base provided in one embodiment of this application.

[0059] Figure 14 This is a schematic diagram of the planar fit between the contact system and the magnetic circuit system provided in one embodiment of this application.

[0060] Figure 15 This is a schematic diagram of the structure of the iron core, contact sleeve, push arm, and contact protrusion provided in one embodiment of this application.

[0061] Icon labels:

[0062] 1000, Base; 2000, Contact System; 3000, Inner Cover Plate; 4000, Outer Cover Plate; 5000, Static Contact Assembly; 6000, Dynamic Contact Assembly; 7000, Magnetic Circuit System;

[0063] 1001. Contact cavity; 1002. Magnetic circuit cavity; 1003. Linkage channel;

[0064] 1100 Inner cover plate fixing part; 1200 Static spring fixing part; 1300 Dynamic spring assembly part; 1400 Sliding rail; 1500 Outer cover plate fixing part;

[0065] 1410. First track groove; 1420. First track wall;

[0066] 2100. Moving part; 2110. Main body section; 2120. Mounting section; 2121. Moving spring mounting cavity; 2101. Sliding protrusion; 2102. Limiting protrusion; 2103. Lateral protrusion;

[0067] 3100, Inner cover plate fixing post; 3200, Central plate area; 3300, Extension plate area;

[0068] 3110. First guide section;

[0069] 4001, Static spring lead-out hole; 4100, Limiting rail; 4200, Outer cover plate fixing post;

[0070] 4110, Second track groove; 4120, Second track wall;

[0071] 4210. Second guide section;

[0072] 7100, Coil Assembly; 7200, Transmission Assembly;

[0073] 7110, First coil unit; 7120, Second coil unit;

[0074] 7210, Iron core; 7220, Contact sleeve; 7300, Push arm; 7221, Contact protrusion. Detailed Implementation

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] See Figures 1 to 15 As shown, this application provides a relay, which includes a base 1000, a contact system 2000, an inner cover plate 3000, and a magnetic circuit system 7000. The base 1000 has a contact cavity 1001 and a magnetic circuit cavity 1002 inside, which are connected via a linkage channel 1003. The contact system 2000 is assembled in the contact cavity 1001, and the magnetic circuit system 7000 is assembled in the magnetic circuit cavity 1002. The magnetic circuit system 7000 is drivenly connected to the contact system 2000 in the contact cavity 1001 via the linkage channel 1003. Those skilled in the art can design the structure of each part of the relay and their assembly relationships according to actual needs, which are not limited here.

[0082] In one embodiment, a stationary spring fixing part 1200 and a movable spring mounting part 1300 are provided in the contact cavity 1001. The stationary spring fixing part 1200 is mainly used to fix and assemble a stationary contact assembly 5000 in the contact cavity 1001 of the base 1000, while the movable spring mounting part 1300 is mainly used to movably assemble a movable contact assembly 6000 in the contact cavity 1001 of the base 1000. In one embodiment, the stationary spring fixing part 1200 may be configured as a fixing groove in the contact cavity 1001, and the number of stationary spring fixing parts 1200 is configured to be several, with each stationary spring fixing part 1200 configured to install one stationary contact assembly 5000. The movable spring mounting part 1300 may be configured as a sliding groove in the contact cavity 1001, and the moving member 2100 is slidably assembled in the sliding groove.

[0083] The contact system 2000 includes a movable member 2100, which is movably mounted in the moving spring assembly 1300 of the contact cavity 1001 along a predetermined direction of movement. This predetermined direction of movement is the direction in which the moving contact assembly 6000 in the relay moves relative to the stationary contact assembly 5000. At this time, the movable member 2100 is configured to install the moving contact assembly 6000, thereby driving the moving contact assembly 6000 to move relative to the stationary contact assembly 5000, realizing the contact and separation between the moving contact of the moving contact assembly 6000 and the stationary contact of the stationary contact assembly 5000.

[0084] In one embodiment, the movable member 2100 may be divided into a connected main body segment 2110 and at least one mounting segment 2120. The mounting segment 2120 has a spring mounting cavity 2121, which may be configured to mount the dynamic contact assembly 6000. For example, the movable member 2100 has a connected main body segment 2110 and two mounting segments 2120, which are respectively disposed at both ends of the main body segment 2110 along the Y-axis direction. The length of the main body segment 2110 in the Y-axis direction is greater than the length of any one of the main body segments 2110 in the Y-axis direction. The main body segment 2110 has at least one lateral protrusion 2103 on both sides in the X-axis direction. Therefore, the main body segment 2110 can be used to slide and contact the inner walls of the two sides of the sliding groove through the lateral protrusions 2103 on both sides. This changes the situation where the main body segment 2110 might have needed to form a surface contact with the inner walls of the two sides of the sliding groove. Instead, the lateral protrusions 2103 on the main body segment 2110 form a line contact with the inner walls of the two sides of the sliding groove, thereby reducing friction and improving the smoothness of sliding.

[0085] When performing relevant parameter testing, the parameters that need to be tested include the distance between the moving contact of the moving contact assembly 6000 and the stationary contact of the stationary contact assembly 5000. In order to ensure that the distance between the moving contact of the moving contact assembly 6000 and the stationary contact of the stationary contact assembly 5000 remains stable, this application designs a structure in the relay assembly that can expose the moving contact of the moving contact assembly 6000 and the stationary contact of the stationary contact assembly 5000 without affecting parameter testing, and can also ensure that the moving contact of the moving contact assembly 6000 does not move unexpectedly. That is, an inner cover plate 3000 is added to the relay, and the inner cover plate 3000 is used to restrict the movement of the moving part 2100 in a direction away from the contact cavity 1001.

[0086] The contact cavity 1001 includes an inner cover plate fixing part 1100, allowing the inner cover plate 3000 to be installed within it. In one embodiment, the inner cover plate fixing part 1100 is configured as an inner cover plate 3000 fixing hole within the contact cavity 1001, and the inner cover plate 3000 is provided with an inner cover plate fixing post 3100, which engages with the inner cover plate 3000 fixing hole. Alternatively, the inner cover plate 3000 and the inner cover plate fixing part 1100 can be assembled using various methods such as snap-fit ​​or adhesive bonding, which are not limited here.

[0087] After the inner cover plate 3000 is fixedly assembled relative to the base 1000 via the inner cover plate fixing part 1100, the inner cover plate 3000 can make limited contact with the moving part 2100, so that the inner cover plate 3000 can be configured to restrict the moving part 2100 from moving in a direction away from the contact cavity 1001, thereby restricting the moving contact assembly 6000 from moving in a direction away from the contact cavity 1001. This ensures that the moving contact of the moving contact assembly 6000 does not move unexpectedly, so that the relative positional relationship between the moving contact of the moving contact assembly 6000 and the stationary contact of the stationary contact assembly 5000 is always in the preset design state.

[0088] In one embodiment, it can be as follows Figure 2 As shown, the base 1000 has X-axis, Y-axis, and Z-axis directions. The planes containing the X-axis and Y-axis directions are parallel to the bottom surface of the contact cavity 1001, and the Z-axis direction is perpendicular to the planes containing the X-axis and Y-axis directions. The moving member 2100 is movably mounted to the moving spring assembly 1300 in the contact cavity 1001 along the Y-axis direction. Therefore, the main function of the inner cover plate 3000 is to restrict the movement of the moving member 2100 in the Z-axis direction, thereby restricting the movement of the moving contact assembly 6000 in the Z-axis direction.

[0089] In order to detect the distance between the moving contact of the moving contact assembly 6000 and the stationary contact of the stationary contact assembly 5000, it is necessary to expose the moving contact of the moving contact assembly 6000 and the stationary contact of the stationary contact assembly 5000 during the test, so as not to affect the parameter detection. Therefore, the inner cover plate 3000 can avoid at least one of the stationary spring fixing part 1200 and the moving spring assembly part 1300 in the Z-axis direction.

[0090] See Figure 7 As shown, in one embodiment, the inner cover 3000 may include a connected central plate region 3200 and at least one extension plate region 3300. See also... Figure 2 Based on the orientation of the various parts in the relay in their cooperative state, the inner cover plate 3000, in its cooperative state with respect to the base 1000, has a width in the X-axis direction and a length in the Y-axis direction. The central plate area 3200 and the extension plate area 3300 are relatively distributed in the Y-axis direction. For example, the inner cover plate 3000 may include one central plate area 3200 and two extension plate areas 3300, with the two extension plate areas 3300 disposed at both ends of the length direction of the central plate area 3200 in the Y-axis direction.

[0091] At this point, the width of the extension plate area 3300 can be limited to be smaller than the width of the center plate area 3200. In one embodiment, such as Figure 12As shown, the width of the extension plate area 3300 is L1, the width of the center plate area 3200 is L2, and the width of the sliding groove is L3. Therefore, the width of the center plate area 3200 can be limited to be greater than the width of the sliding groove, so that the center plate area 3200 can span the width of the sliding groove in the width direction, and thus be fixed to the inner cover plate fixing part 1100 of the base 1000 on both sides of the width of the sliding groove. The wider design that can span the width of the sliding groove improves the fixing reliability of the center plate area 3200.

[0092] Accordingly, the inner cover plate 3000 is provided with two inner cover plate fixing posts 3100. The number of inner cover plate fixing parts 1100 is configured to be two and matched with the two inner cover plate fixing posts 3100. The two inner cover plate fixing posts 3100 are located at both ends of the width direction of the central plate area 3200 of the inner cover plate 3000, and the straight-line distance between the two inner cover plate fixing posts 3100 is greater than the width of the sliding groove and also spans the width of the sliding groove. The end of the inner cover plate fixing post 3100 is provided with a first guide section 3110. The first guide section 3110 can be configured as a conical head structure, thereby facilitating the guiding insertion.

[0093] Meanwhile, the width of the extension plate area 3300 is smaller than the width of the sliding groove, allowing the extension plate area 3300 to move within the width of the sliding groove, avoiding at least one of the stationary spring fixing part 1200 and the moving spring assembly part 1300. This facilitates the detection of the distance between the moving contact of the moving contact assembly 6000 and the stationary contact of the stationary contact assembly 5000 in the stationary spring fixing part 1200 and the moving spring assembly part 1300, or other parameters regarding the moving contact of the moving contact of the moving contact assembly 6000 and the stationary contact of the stationary contact assembly 5000.

[0094] Therefore, the inner cover plate 3000 can make limiting contact with the main body segment 2110 of the moving member 2100. Since the main body segment 2110 does not have a moving contact component 6000 and there is no interference between the static contact component 5000 and the moving contact component 5000 in the Z-axis direction, when the inner cover plate 3000 makes limiting contact with the main body segment 2110 of the moving member 2100, the inner cover plate 3000 can avoid the static spring fixing part 1200 and the moving spring assembly part 1300, exposing the moving contact of the moving contact component 6000 and the static contact of the static contact component 5000.

[0095] To ensure that the moving component 2100 drives the moving contact assembly 6000 to move relative to the stationary contact assembly 5000 within the base 1000 along a predetermined trajectory, in one embodiment, a sliding track 1400 may be provided in the contact cavity 1001, and the moving component 2100 is slidably fitted into the sliding groove along the sliding track 1400. In this case, the moving component 2100 may be provided with a sliding protrusion 2101, through which the moving component 2100 is slidably fitted with the sliding track 1400.

[0096] The sliding track 1400 includes a first track groove 1410 formed on the bottom surface of the contact cavity 1001 of the base 1000 and two first track walls 1420 disposed on both sides of the first track groove 1410. The first track groove 1410 is configured as a straight groove and the first track walls 1420 are configured as straight walls. The inner surfaces of the two first track walls 1420 are in the same plane as the inner groove walls on both sides of the first track groove 1410.

[0097] Therefore, by providing two first track walls 1420 on both sides of the first track groove 1410, the two first track walls 1420 can simultaneously define the space for sliding assembly of the sliding protrusion 2101. Due to the design of the two first track walls 1420, the groove depth of the first track groove 1410 is further increased, which in turn provides a deeper sliding space for the sliding protrusion 2101. This not only improves the sliding stability of the sliding protrusion 2101, but also allows the two first track walls 1420 on both sides to serve as a stop structure to prevent the sliding protrusion 2101 from tilting to both sides.

[0098] Continue reading Figure 1 and Figure 2 As shown, in one embodiment, the relay may further include an outer cover plate 4000, and an outer cover plate fixing part 1500 is provided in the contact cavity 1001, with the outer cover plate 4000 mounted on the outer cover plate fixing part 1500. In one embodiment, the outer cover plate fixing part 1500 may be configured as an outer cover plate 4000 fixing hole provided in the contact cavity 1001, and the outer cover plate 4000 is provided with an outer cover plate fixing post 4200, which is inserted into the outer cover plate 4000 fixing hole.

[0099] The number of outer cover plate fixing parts 1500 is configured in even numbers and forms a group of two. Two outer cover plate fixing parts 1500 in one group are aligned with two inner cover plate fixing posts 3100 in the X-axis direction. Therefore, when the outer cover plate 4000 is fixed to the base 1000 by two of the group's outer cover plate fixing parts 1500, the area where the outer cover plate 4000 and the base 1000 are connected is a relatively secure area. This securely fixed area also corresponds to the area where the inner cover plate 3000 is fixed to the base 1000 by the inner cover plate fixing posts 3100. Therefore, the inner cover plate 3000 can be pressed down by this securely fixed area, improving the stability of the inner cover plate 3000. A second guide section 4210 is provided at the end of the outer cover plate fixing post 4200. The second guide section 4210 can be configured as a tapered head structure, thereby facilitating guiding insertion.

[0100] In addition, the outer cover plate 4000 and the outer cover plate fixing part 1500 can also be assembled with each other by various methods such as snap-fit ​​and adhesive, which are not limited here.

[0101] At this time, the outer cover plate 4000 can make limiting contact with the movable member 2100. In addition to the inner cover plate 3000, the outer cover plate 4000 can also be configured to restrict the movement of the movable member 2100 in a direction away from the contact cavity 1001, such as restricting the movement of the movable member 2100 in the Z-axis direction, thereby restricting the movement of the moving contact assembly 6000 in the Z-axis direction. The outer cover plate 4000 is provided with several static spring lead-out holes 4001, which can be used to lead out part of the structure of the static contact assembly 5000, facilitating the connection of other structures.

[0102] To ensure that the moving component 2100 drives the moving contact assembly 6000 to move relative to the stationary contact assembly 5000 within the base 1000 along a predetermined trajectory, in one embodiment, the outer cover plate 4000 may also be provided with a limiting track 4100, along which the moving component 2100 slides. In this case, the limiting track 4100 can cooperate with the sliding track 1400 to correct the movement trajectory of the moving component 2100. Simultaneously, the moving component 2100 may also be provided with a limiting protrusion 2102, allowing it to slide against the limiting track 4100 via the limiting protrusion 2102.

[0103] The limiting track 4100 includes a second track groove 4110 formed on the surface of the outer cover plate 4000 and two second track walls 4120 disposed on both sides of the second track groove 4110. The second track groove 4110 is configured as a straight groove, and the second track walls 4120 are configured as straight walls. The inner sides of the two second track walls 4120 are in the same plane as the inner groove walls on both sides of the second track groove 4110.

[0104] Therefore, by setting two second track walls 4120 on both sides of the second track groove 4110, the space for sliding assembly limiting protrusion 2102 can be defined by the two second track walls 4120. Due to the design of the two second track walls 4120, the groove depth of the second track groove 4110 is further increased, which in turn provides a deeper sliding space for the limiting protrusion 2102. This not only improves the sliding stability of the limiting protrusion 2102, but also allows the two second track walls 4120 on both sides to serve as a stop structure to prevent the limiting protrusion 2102 from tilting to both sides.

[0105] In one embodiment, the height of the limiting protrusion 2102 protruding from the moving member 2100 is greater than the height of the sliding protrusion 2101 protruding from the moving member 2100, and the sum of the depth of the second track groove 4110 and the height of the second track wall 4120 is greater than the sum of the depth of the first track groove 1410 and the height of the first track wall 1420.

[0106] Therefore, when the moving part 2100 reciprocates along the preset trajectory, the sliding protrusion 2101 can mainly guide the direction of movement within the space formed by the second track groove 4110 and the two second track walls 4120. At the same time, the combined depth of the first track groove 1410 and the height of the first track wall 1420 is designed to be larger, mainly to provide a more stable limiting space for the limiting protrusion 2102, so that the limiting protrusion 2102 is stably restricted to reciprocate in the preset direction within the space formed by the second track groove 4110 and the two second track walls 4120, thereby improving the stability of the movement.

[0107] Continue reading Figures 11 to 15 As shown, the magnetic circuit system 7000 includes a coil assembly 7100 and a transmission assembly 7200. The transmission assembly 7200 includes an iron core 7210, a contact sleeve 7220, and a push arm 7300. The contact sleeve 7220 has an axially penetrating inner cavity. The contact sleeve 7220 is fitted onto the outside of the iron core 7210 based on the inner cavity. The push arm 7300 is connected to the contact sleeve 7220. The contact sleeve 7220 of the transmission assembly 7200 is movably fitted into the coil assembly 7100. The push arm 7300 of the transmission assembly 7200 is drivenly connected to the contact system 2000.

[0108] At least one of the outer wall of the contact sleeve 7220 and the inner wall of the coil assembly 7100 may be provided with a plurality of contact protrusions 7221. For example, the relay also includes a wire frame, a first coil unit 7110 and a second coil unit 7120. The first coil unit 7110 is disposed on the wire frame cylinder wall of the wire frame, and the interior of the first coil unit 7110 has a first coil space. One end of the iron core 7210 and the contact sleeve 7220 are movably assembled in the first coil space of the first coil unit 7110. The second coil unit 7120 is disposed on the wire frame cylinder wall of the wire frame, and the interior of the second coil unit 7120 has a second coil space. The other end of the iron core 7210 and the contact sleeve 7220 are movably assembled in the second coil space of the second coil unit 7120.

[0109] The outer wall of the contact sleeve 7220 is provided with a plurality of contact protrusions 7221, which engage with the inner wall of the first coil space or at least one of the first coil space through point contact or line contact. This design allows the contact protrusions 7221 to directly engage with the coil assembly 7100 through point or line contact, rather than through surface contact between the iron core 7210 or the contact sleeve 7220 and the coil assembly 7100. Therefore, changing from surface contact to point or line contact significantly reduces the contact area, decreases frictional resistance during movement, and thereby increases the operating speed of the magnetic circuit mechanism under large strokes, meeting the requirements for rapid response.

[0110] 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.

[0111] 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, The relay includes: The base (1000) has a contact cavity (1001) inside, and the contact cavity (1001) is provided with an inner cover plate fixing part (1100), a static spring fixing part (1200) and a dynamic spring assembly part (1300). A contact system (2000) includes a movable element (2100) movably mounted in a spring assembly (1300) of a contact cavity (1001) along a predetermined direction of movement, the movable element (2100) being configured to mount a movable contact assembly (6000). An inner cover plate (3000) is mounted on the inner cover plate fixing part (1100), the inner cover plate (3000) is in limiting contact with the moving part (2100), and the inner cover plate (3000) is configured to restrict the moving part (2100) from moving in a direction away from the contact cavity (1001).

2. The relay according to claim 1, characterized in that, The base (1000) has an X-axis direction, a Y-axis direction and a Z-axis direction. The plane containing the X-axis direction and the Y-axis direction is parallel to the bottom surface of the contact cavity (1001), and the Z-axis direction is perpendicular to the plane containing the X-axis direction and the Y-axis direction. The movable member (2100) is movably mounted in the contact cavity (1001) of the spring assembly (1300) along the Y-axis direction, and the inner cover plate (3000) is configured to restrict the movement of the movable member (2100) in the Z-axis direction.

3. The relay according to claim 2, characterized in that, The stationary spring fixing part (1200) is configured as a fixing groove provided in the contact cavity (1001); and / or, The number of the stationary spring fixing parts (1200) is configured to be a plurality, and each of the stationary spring fixing parts (1200) is configured to mount a stationary contact assembly (5000); and / or, The moving spring assembly (1300) is configured as a sliding groove in the contact cavity (1001), and the moving member (2100) is slidably assembled in the sliding groove; and / or, The inner cover plate (3000) avoids at least one of the stationary spring fixing part (1200) and the moving spring assembly part (1300) in the Z-axis direction; and / or, The inner cover plate (3000) includes a connected central plate area (3200) and at least one extension plate area (3300), and the width of the extension plate area (3300) is smaller than the width of the central plate area (3200); wherein, in the mating state of the inner cover plate (3000) relative to the base (1000), its dimension in the X-axis direction is its width, and its dimension in the Y-axis direction is its length, and the central plate area (3200) and the extension plate area (3300) are relatively distributed in the Y-axis direction.

4. The relay according to claim 3, characterized in that, The movable member (2100) has a connected main body segment (2110) and at least one mounting segment (2120), the mounting segment (2120) having a movable spring mounting cavity (2121) configured for mounting a movable contact assembly (6000); the inner cover plate (3000) makes limiting contact with the main body segment (2110) of the movable member (2100); and / or, The inner cover plate (3000) includes a central plate area (3200) and two extension plate areas (3300). The two extension plate areas (3300) are disposed at both ends of the length direction of the central plate area (3200) in the Y-axis direction. The width of the central plate area (3200) is greater than the width of the sliding groove, and the width of the extension plate areas (3300) is less than the width of the sliding groove.

5. The relay according to claim 4, characterized in that, A sliding track (1400) is provided in the contact cavity (1001), and the moving part (2100) is slidably assembled in the sliding groove along the sliding track (1400); the moving part (2100) is provided with a sliding protrusion (2101), and the moving part (2100) is slidably assembled with the sliding track (1400) through the sliding protrusion (2101); and / or, The movable component (2100) has a connected main body segment (2110) and two mounting segments (2120), the two mounting segments (2120) being respectively disposed at both ends of the main body segment (2110) along the Y-axis direction, the length of the main body segment (2110) in the Y-axis direction being greater than the length of any one of the main body segments (2110) in the Y-axis direction; and / or, The main body segment (2110) has at least one lateral protrusion (2103) on both sides in the X-axis direction. The main body segment (2110) slides and contacts the inner walls of the sliding groove on both sides through the lateral protrusions (2103) on both sides.

6. The relay according to claim 5, characterized in that, The sliding track (1400) includes a first track groove (1410) formed on the bottom surface of the contact cavity (1001) of the base (1000) and two first track walls (1420) disposed on both sides of the first track groove (1410). The first track groove (1410) is configured as a straight groove, and the first track walls (1420) are configured as straight walls. The inner surfaces of the two first track walls (1420) are in the same plane as the inner groove walls on both sides of the first track groove (1410).

7. The relay according to claim 6, characterized in that, The relay includes: The outer cover plate (4000) has an outer cover plate fixing part (1500) provided in the contact cavity (1001), and the outer cover plate (4000) is installed in the outer cover plate fixing part (1500).

8. The relay according to claim 7, characterized in that, The outer cover plate (4000) makes limiting contact with the movable member (2100), and the outer cover plate (4000) is configured to restrict movement of the movable member (2100) in a direction away from the contact cavity (1001); and / or, The outer cover plate (4000) has several static spring lead-out holes (4001).

9. The relay according to claim 8, characterized in that, The outer cover plate (4000) is provided with a limiting track (4100), and the moving part (2100) is slidably assembled along the limiting track (4100); the moving part (2100) is provided with a limiting protrusion (2102), and the moving part (2100) is slidably assembled with the limiting track (4100) through the limiting protrusion (2102).

10. The relay according to claim 9, characterized in that, The limiting track (4100) includes a second track groove (4110) formed on the surface of the outer cover plate (4000) and two second track walls (4120) disposed on both sides of the second track groove (4110). The second track groove (4110) is configured as a straight groove, and the second track walls (4120) are configured as straight walls. The inner surfaces of the two second track walls (4120) are in the same plane as the inner groove walls on both sides of the second track groove (4110); and / or, The height of the limiting protrusion (2102) protruding from the moving member (2100) is greater than the height of the sliding protrusion (2101) protruding from the moving member (2100), and the sum of the depth of the second track groove (4110) and the height of the second track wall (4120) is greater than the sum of the depth of the first track groove (1410) and the height of the first track wall (1420).

11. The relay according to claim 10, characterized in that, The inner cover plate fixing part (1100) is configured as an inner cover plate fixing hole in the contact cavity (1001), and the inner cover plate (3000) is provided with an inner cover plate fixing post (3100), which is inserted into the inner cover plate fixing hole; and / or, The outer cover plate fixing part (1500) is configured as an outer cover plate fixing hole in the contact cavity (1001), and the outer cover plate (4000) is provided with an outer cover plate fixing post (4200), which is inserted into the outer cover plate fixing hole.

12. The relay according to claim 11, characterized in that, The inner cover plate (3000) is provided with two inner cover plate fixing posts (3100), and the number of inner cover plate fixing parts (1100) is configured to be two and matched with the two inner cover plate fixing posts (3100). The two inner cover plate fixing posts (3100) are located at both ends of the width direction of the central plate area (3200) of the inner cover plate (3000), and the straight-line distance between the two inner cover plate fixing posts (3100) is greater than the width of the sliding groove; and / or, The number of the outer cover plate fixing parts (1500) is configured to be even and they form a group of two, wherein two of the outer cover plate fixing parts (1500) in a group are aligned with two of the inner cover plate fixing posts (3100) in the X-axis direction; and / or, The end of the inner cover plate fixing post (3100) is provided with a first guide section (3110); and / or, The end of the outer cover plate fixing post (4200) is provided with a second guide section (4210).

13. The relay according to any one of claims 1-12, characterized in that, The relay also includes: The magnetic circuit system (7000) has a magnetic circuit cavity (1002) inside the base (1000). The magnetic circuit cavity (1002) is connected to the contact cavity (1001) through a linkage channel (1003). The magnetic circuit system (7000) is assembled in the magnetic circuit cavity (1002), and the magnetic circuit system (7000) is driven to be connected to the contact system (2000) in the contact cavity (1001) through the linkage channel (1003).

14. The relay according to claim 13, characterized in that, The magnetic circuit system (7000) includes a coil assembly (7100) and a transmission assembly (7200). The transmission assembly (7200) includes an iron core (7210), a contact sleeve (7220), and a push arm (7300). The contact sleeve (7220) has an axially penetrating inner cavity. The contact sleeve (7220) is fitted onto the outside of the iron core (7210) based on the inner cavity. The push arm (7300) is connected to the contact sleeve (7220). The contact sleeve (7220) of the transmission assembly (7200) is movably fitted into the coil assembly (7100). The push arm (7300) of the transmission assembly (7200) is drivenly connected to the contact system (2000).

15. The relay according to claim 14, characterized in that, At least one of the outer wall of the contact sleeve (7220) and the inner wall of the coil assembly (7100) is provided with a plurality of contact protrusions (7221).

16. The relay according to claim 15, characterized in that, The relay also includes: Wireframe; The first coil unit (7110) is disposed on the wall of the wire frame cylinder of the wire frame. The first coil unit (7110) has a first coil space inside. One end of the iron core (7210) and the contact sleeve (7220) are movably assembled in the first coil space of the first coil unit (7110). The second coil unit (7120) is disposed on the wall of the wire frame cylinder of the wire frame. The interior of the second coil unit (7120) has a second coil space. The other end of the iron core (7210) and the contact sleeve (7220) are movably assembled in the second coil space of the second coil unit (7120). The outer wall of the contact sleeve (7220) is provided with a plurality of contact protrusions (7221), and the plurality of contact protrusions (7221) are in point contact or line contact with the inner wall of the first coil space and at least one of the first coil space.

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