Transmission assembly, parallel transmission mechanism and relay thereof

Abstract

The application provides a transmission assembly, a parallel transmission mechanism and a relay thereof. The contact sleeve has a sleeve inner cavity penetrating in the axial direction. The contact sleeve is sleeved and assembled on the outside of the iron core based on the sleeve inner cavity. The outer wall of the contact sleeve is provided with a plurality of contact protrusions. The contact sleeve is configured to be movably assembled on the coil assembly through the contact protrusions. The pushing arm is connected with the contact sleeve. The pushing arm is configured to be connected with the contact system driver. Compared with the assembly contact between the iron core or the contact sleeve and the coil assembly, if the plurality of contact protrusions are in assembly contact with the coil assembly, the contact mode is changed to point contact or line contact, instead of the surface contact between the iron core or the contact sleeve and the coil assembly. Therefore, the contact area is reduced, the frictional resistance in the movement process is reduced, the action speed of the magnetic circuit action mechanism under a large stroke is improved, and the requirement of fast response is met.

Description

Technical Field

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

[0002] Relays, as control components, are driving devices that use small currents to control large currents, and are widely used in aerospace, automotive, home appliances, and industrial control 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 source upon receiving a control signal, minimizing losses due to the failure. Therefore, the switching time of the relay must be sufficiently short.

[0003] To achieve rapid switching, the magnetic circuit actuation mechanism of the relay must operate quickly under long stroke conditions. However, the switching action of relays in related technologies is not timely enough, which can easily cause power supply failures. Therefore, improving the operating speed of the magnetic circuit actuation mechanism under long stroke conditions has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] Therefore, it is necessary to provide a transmission component, a parallel transmission mechanism, and a relay thereof to address the aforementioned technical problems.

[0005] This application provides a transmission assembly configured for use with a relay, the transmission assembly comprising:

[0006] Iron core;

[0007] A contact sleeve having an axially penetrating inner cavity, the contact sleeve being fitted onto the outside of the iron core based on the inner cavity; wherein the contact sleeve is configured for movably fitting into a coil assembly; 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;

[0008] A push arm connected to the contact sleeve, the push arm being configured for connection to a contact system drive.

[0009] In one embodiment, the outer wall of the contact sleeve and the inner wall of the coil assembly are engaged with each other through point contact or line contact via a plurality of the contact protrusions; and / or,

[0010] A plurality of the aforementioned contact protrusions are disposed on the outer wall of the contact sleeve, and the contact protrusions are configured for point contact engagement or line contact engagement with the coil assembly; and / or,

[0011] The axial length of the contact sleeve is less than the axial length of the iron core, and both ends of the iron core are exposed outside the contact sleeve; and / or,

[0012] The push arm is indirectly assembled to the contact sleeve through a structural reinforcement.

[0013] In one embodiment, the contact protrusion is configured as a linear protrusion disposed along the axial direction of the contact sleeve, the contact protrusion being configured to make line contact with the coil assembly along the axial direction of the contact sleeve; and / or,

[0014] The surface of the contact protrusion is configured as a curved surface; and / or,

[0015] A retaining ring is fitted around the outside of the contact sleeve, and the structural reinforcement is indirectly assembled to the contact sleeve through the retaining ring.

[0016] In one embodiment, each of the contact protrusions includes a first constant protrusion segment, a second constant protrusion segment, a first gradient protrusion segment, and a second gradient protrusion segment; the retaining ring is sleeved at the center of the contact sleeve, the first gradient protrusion segment and the second gradient protrusion segment are respectively located at both ends of the contact sleeve, the first constant protrusion segment is located between the retaining ring and the first gradient protrusion segment, and the second constant protrusion segment is located between the retaining ring and the second gradient protrusion segment; and / or,

[0017] The plurality of contact protrusions are parallel to each other, and are distributed along the circumferential direction of the contact sleeve on the outer wall of the contact sleeve. The circumferential spacing between adjacent contact protrusions is the same; and / or,

[0018] The width of the fixing ring is greater than the width of the push arm, and the width of the structural reinforcement gradually increases from the fixing ring to the push arm. The maximum width of the structural reinforcement is less than or equal to the width of the fixing ring, and the minimum width of the structural reinforcement is less than or equal to the width of the push arm.

[0019] In one embodiment, the first constant protrusion segment and the second constant protrusion segment are respectively connected to both ends of the fixing ring; and / or,

[0020] In the direction from the center position to both ends of the contact sleeve, at least one of the first and second gradually tapered protrusions gradually decreases in height on the surface of the contact sleeve; and / or,

[0021] The first gradient protrusion is connected to the end of the first constant protrusion away from the fixing ring, and the second gradient protrusion is connected to the end of the second constant protrusion away from the fixing ring; and / or,

[0022] The length of the first constant protrusion segment is at least three times greater than the length of the first gradient protrusion segment, and the length of the second constant protrusion segment is at least three times greater than the length of the second gradient protrusion segment; and / or,

[0023] From the fixing ring to the push arm, the thickness of the structural reinforcement gradually increases, and the minimum thickness of the structural reinforcement is less than or equal to the thickness of the push arm; and / or,

[0024] The contact sleeve, the contact protrusion, the push arm, the structural reinforcement, and the fixing ring are configured as an integrally formed structure.

[0025] This application provides a parallel transmission mechanism, the parallel transmission mechanism comprising:

[0026] A magnetic circuit system, the magnetic circuit system including a coil assembly and the transmission assembly, wherein the contact sleeve of the transmission assembly is movably assembled in the coil assembly;

[0027] The contact system, wherein the push arm of the transmission assembly is drivenly connected to the contact system.

[0028] In one embodiment, the coil assembly includes:

[0029] Wireframe;

[0030] 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.

[0031] 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.

[0032] 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 at least one of the first coil space and the second coil space.

[0033] In one embodiment, the contact system includes a movable element configured for movably mounting on a base of a relay, wherein the movable element is provided with a drive docking portion, and a push arm of the transmission assembly is motive-connected to the drive docking portion of the movable element; and / or,

[0034] There is a gap between the first coil unit and the second coil unit, and the push arm is configured to be confined within the gap, reciprocating with the contact sleeve; and / or,

[0035] At least one of the first coil space and the second coil space has a guide arc surface at its spatial port, and the guide arc surface is configured to guide the movement of the contact sleeve.

[0036] In one embodiment, the drive docking portion is configured to be formed in a drive docking groove of the moving member, and the push arm of the transmission assembly is inserted into the drive docking groove of the moving member; and / or,

[0037] The movable component is provided with a plurality of contact assembly slots; and / or,

[0038] A fixing ring is fitted around the outside of the contact sleeve. The push arm is connected to the fixing ring through a structural reinforcement. The fixing ring is configured to be confined within the interval limiting distance, and the maximum diameter of the fixing ring is greater than the inner diameter of the first coil space and the second coil space. The fixing ring is configured to make limiting contact with the first coil unit and the second coil unit.

[0039] In one embodiment, the push arm of the transmission assembly is interference-fitted with the drive mating groove of the moving member; and / or,

[0040] One end of the movable component is provided with a counterweight element, and the other end of the movable component has a weight-reducing cutout; and / or,

[0041] The moving part is provided with an auxiliary contact pushing part.

[0042] In one embodiment, the contact sleeve of the transmission assembly is movably mounted in the coil assembly along the coil axis of the coil assembly;

[0043] The push arm of the transmission assembly is perpendicular to the coil axis of the coil assembly, and the push arm drives the contact system to move along a straight trajectory parallel to the coil axis.

[0044] This application provides a relay, the relay comprising:

[0045] 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; 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;

[0046] The parallel transmission mechanism; the movable part of the contact system is movably assembled in the contact cavity along the Y-axis direction, and the movable part is configured to install the moving contact assembly.

[0047] In one embodiment, a sliding track is provided in the contact cavity, and the moving member is slidably assembled in the contact cavity 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.

[0048] 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.

[0049] In one embodiment, the relay includes:

[0050] An outer cover plate is provided in the contact cavity, and the outer cover plate is installed in the outer cover plate fixing part; the outer cover plate is in limiting contact with the moving member, and the outer cover plate is configured to restrict the moving member from moving in a direction away from the contact cavity;

[0051] The outer cover plate is provided with a limiting track, and the moving part is slidably assembled along the limiting track; the moving part is provided with a limiting protrusion, and the moving part is slidably assembled with the limiting track through the limiting protrusion.

[0052] 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,

[0053] 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.

[0054] In the aforementioned transmission components, parallel transmission mechanisms, and their relays, compared to the assembly contact between the iron core or contact sleeve and the coil assembly, if several contact protrusions make assembly contact with the coil assembly, the contact method will change to point contact or line contact, rather than the surface contact between the iron core or contact sleeve and the coil assembly. Therefore, changing from surface contact to point contact or line contact will greatly reduce the contact area and decrease the frictional resistance during movement, thereby increasing the operating speed of the magnetic circuit actuation mechanism under large stroke and meeting the requirements of rapid response. Attached Figure Description

[0055] Figure 1 This is a schematic diagram of the structure of a parallel transmission mechanism provided in one embodiment of this application.

[0056] Figure 2 For example Figure 1 The side view of the parallel transmission mechanism shown.

[0057] Figure 3 This is a schematic diagram of the iron core structure provided in one embodiment of this application.

[0058] Figure 4 This is a perspective view of a transmission assembly provided in one embodiment of this application.

[0059] Figure 5 For example Figure 4 The front view of the transmission assembly is shown.

[0060] Figure 6 For example Figure 4 The side view of the transmission assembly shown.

[0061] Figure 7 This is a cross-sectional schematic diagram of a relay provided in one embodiment of this application.

[0062] Figure 8 This is an exploded view of a relay provided in one embodiment of this application.

[0063] Figure 9 This is a plan view of a movable component provided in one embodiment of this application.

[0064] Figure 10 This is a perspective view of the base provided in one embodiment of this application.

[0065] Figure 11 For example Figure 10The diagram shows a partially enlarged structural schematic of the base.

[0066] Figure 12 This is a perspective view of the outer cover plate provided in one embodiment of this application.

[0067] Figure 13 For example Figure 12 The diagram shows a partially enlarged structural schematic of the outer cover plate.

[0068] Icon labels:

[0069] 100. Magnetic circuit system; 200. Contact system; 300. Base; 400. Outer cover plate;

[0070] 110. Coil assembly; 120. Transmission assembly;

[0071] 111. First coil unit; 112. Second coil unit; 113. Interval limiting distance;

[0072] 210. Moving component; 220. Moving contact assembly; 230. Static contact assembly;

[0073] 211. Drive docking part; 212. Contact assembly groove; 213. Counterweight element; 214. Weight reduction hollow part; 215. Auxiliary contact pushing part; 216. Sliding protrusion; 217. Limiting protrusion;

[0074] 301. Contact cavity; 301. Magnetic circuit cavity; 310. Inner cover plate fixing part (310); 320. Static spring fixing part; 330. Dynamic spring assembly part; 340. Sliding track; 350. Outer cover plate fixing part;

[0075] 341. First track groove; 342. First track wall;

[0076] 410. Limiting rail; 411. Second rail groove; 412. Second rail wall;

[0077] 1000, Iron core; 2000, Contact sleeve;

[0078] 2100, Contact protrusion; 2200, Push arm; 2300, Structural reinforcement; 2400, Fixing ring;

[0079] 2110, First constant raised section; 2120, Second constant raised section; 2130, First gradually changing raised section; 2140, Second gradually changing raised section. Detailed Implementation

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] See Figures 1 to 13 As shown, this application provides a relay, which includes a parallel transmission mechanism. The parallel transmission mechanism may include a magnetic circuit system 100 and a contact system 200, which are tractably assembled. The magnetic circuit system 100 and the contact system 200 can be designed according to actual needs and are not limited here. For example, the magnetic circuit system 100 may include a transmission assembly 120, the contact sleeve 2000 of which is movably assembled in the coil assembly 110, and the push arm 2200 of the transmission assembly 120 is drivenly connected to the contact system 200.

[0087] In one embodiment, see [reference] Figures 3 to 6 As shown, the transmission assembly 120 provided in this application may include components such as an iron core 1000, a contact sleeve 2000, and a push arm 2200. The contact sleeve 2000 has an axially penetrating inner cavity. Therefore, the contact sleeve 2000 can be sleeved and assembled onto the outside of the iron core 1000 based on the inner cavity, forming a relatively fixed assembly state with the iron core 1000. At this time, if the iron core 1000 is movably assembled onto the coil assembly 110, the iron core 1000 may not directly contact the coil assembly 110, but can indirectly make assembly contact with the coil assembly 110 through the contact sleeve 2000.

[0088] The outer wall of the contact sleeve 2000 is provided with a number of contact protrusions 2100. Therefore, the iron core 1000 can not only indirectly make assembly contact with the coil assembly 110 through the contact sleeve 2000, but also can be further movably assembled with the coil assembly 110 through the number of contact protrusions 2100 on the contact sleeve 2000, so that the number of contact protrusions 2100 directly make assembly contact with the coil assembly 110.

[0089] Compared to the assembly contact between the iron core 1000 or the contact sleeve 2000 and the coil assembly 110, if the contact protrusions 2100 make assembly contact with the coil assembly 110, the contact method will change to point contact or line contact. In one embodiment, the contact protrusions 2100 can be configured as linear protrusions arranged along the axial direction of the contact sleeve 2000. Therefore, the contact protrusions 2100 can be configured for line contact with the coil assembly 110 along the axial direction of the contact sleeve 2000. Furthermore, the contact protrusions 2100 can be designed to be all parallel to each other, partially parallel to each other, or not parallel to each other. The contact protrusions 2100 can be distributed along the circumferential direction of the contact sleeve 2000 on the outer wall of the contact sleeve 2000. For example, the circumferential spacing between adjacent contact protrusions 2100 may be the same in the circumferential direction of the contact sleeve 2000, or they may be distributed in other ways on the outer wall of the contact sleeve 2000; this is not limited here.

[0090] Therefore, the above design allows for point or line contact between the contact protrusions 2100 and the coil assembly 110, rather than surface contact between the core 1000 or contact sleeve 2000 and the coil assembly 110. 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 long strokes, meeting the requirement for rapid response.

[0091] It should be noted that the arrangement of the plurality of contact protrusions 2100 is not limited to the above embodiments. In other embodiments, those skilled in the art can provide a plurality of contact protrusions 2100 on at least one of the outer wall of the contact sleeve 2000 and the inner wall of the coil assembly 110 as needed. For example, a plurality of contact protrusions 2100 can also be provided in the inner wall of the coil assembly 110, so that the plurality of contact protrusions 2100 in the inner wall of the coil assembly 110 form a point contact engagement or a line contact engagement with the outer wall of the contact sleeve 2000. Alternatively, a plurality of contact protrusions 2100 can be provided in both the outer wall of the contact sleeve 2000 and the inner wall of the coil assembly 110, and they are staggered with each other, so that the outer wall of the contact sleeve 2000 and the inner wall of the coil assembly 110 can have a point contact engagement or a line contact engagement with each other through the plurality of contact protrusions 2100.

[0092] The surface of the contact protrusion 2100 can be configured as a curved surface. This curved design makes the contact protrusion 2100 smoother, which helps reduce friction. For example... Figure 5 As shown, each contact protrusion 2100 may include a first constant protrusion segment 2110, a second constant protrusion segment 2120, a first gradient protrusion segment 2130, and a second gradient protrusion segment 2140. The protrusion height of the first constant protrusion segment 2110 and the second constant protrusion segment 2120 is constant and is mainly used to stably slide in contact with the inner wall of the coil assembly 110. The protrusion height of the first gradient protrusion segment 2130 and the second gradient protrusion segment 2140 is variable and is mainly used to facilitate insertion into the inner wall of the coil assembly 110 through the gradient structure.

[0093] Continue reading Figure 4 and Figure 5 As shown, the retaining ring 2400 is sleeved at the center of the contact sleeve 2000, the first gradually changing protrusion 2130 and the second gradually changing protrusion 2140 are located at the two ends of the contact sleeve 2000 respectively, the first constant protrusion 2110 is located between the retaining ring 2400 and the first gradually changing protrusion 2130, and the second constant protrusion 2120 is located between the retaining ring 2400 and the second gradually changing protrusion 2140.

[0094] Furthermore, the first constant protrusion 2110 and the second constant protrusion 2120 are connected to both ends of the fixing ring 2400, forming an integrally molded structure. In the direction from the center position of the contact sleeve 2000 to both ends, at least one of the first gradual protrusion 2130 and the second gradual protrusion 2140 gradually decreases in height on the surface of the contact sleeve 2000. This gradually decreasing height forms a guiding structure at both ends of the contact sleeve 2000, facilitating the insertion and assembly of the two ends of the contact sleeve 2000 into the inner wall of the coil assembly 110.

[0095] The first gradually increasing raised section 2130 is connected to the end of the first constant raised section 2110 away from the fixing ring 2400, and the second gradually increasing raised section 2140 is connected to the end of the second constant raised section 2120 away from the fixing ring 2400. Since the raised height of the first constant raised section 2110 and the second constant raised section 2120 is constant and mainly used to stably slide in contact with the inner wall of the coil assembly 110, the lengths of the first constant raised section 2110 and the second constant raised section 2120 should be significantly longer than the lengths of the first gradually increasing raised section 2130 and the second gradually increasing raised section 2140. For example, the length of the first constant raised section 2110 is at least three times greater than the length of the first gradually increasing raised section 2130, and the length of the second constant raised section 2120 is at least three times greater than the length of the second gradually increasing raised section 2140.

[0096] The width of the fixing ring 2400 is greater than the width of the push arm 2200, and the width of the structural reinforcement 2300 gradually increases from the fixing ring 2400 to the push arm 2200. Therefore, the gradual width design of the structural reinforcement 2300 can match the width of the fixing ring 2400 and the width of the push arm 2200, so that the structural reinforcement 2300 forms a stable connection between the fixing ring 2400 and the push arm 2200 and improves the strength of the connection. Specifically, the maximum width of the structural reinforcement 2300 is less than or equal to the width of the fixing ring 2400, and the minimum width of the structural reinforcement 2300 is less than or equal to the width of the push arm 2200.

[0097] In one embodiment, the thickness of the structural reinforcement 2300 may gradually increase in the direction from the retaining ring 2400 to the push arm 2200, and the minimum thickness of the structural reinforcement 2300 may be less than or equal to the thickness of the push arm 2200. Furthermore, the contact sleeve 2000, contact protrusion 2100, push arm 2200, structural reinforcement 2300, and retaining ring 2400 are configured as a single, integrally formed structure.

[0098] Continue reading Figures 4 to 6 As shown, the push arm 2200 can be connected to the contact sleeve 2000. In this case, the push arm 2200 can be configured for driving connection with the contact system 200. The push arm 2200 can be designed as a regular or irregular structure such as a plate-like structure, column-like structure, or cylindrical structure, depending on the requirements. Those skilled in the art can design it according to actual needs, and no limitation is made here. Moreover, the push arm 2200 is indirectly assembled to the contact sleeve 2000 through the structural reinforcement 2300. The structural reinforcement 2300 can be designed as a regular or irregular structure such as a plate-like structure, column-like structure, or cylindrical structure, depending on the requirements. Those skilled in the art can design it according to actual needs, and no limitation is made here.

[0099] A retaining ring 2400 is fitted around the outside of the contact sleeve 2000, and the structural reinforcement 2300 is indirectly assembled to the contact sleeve 2000 through the retaining ring 2400. The axial length of the retaining ring 2400 can be designed according to actual needs. While ensuring the fixed connection requirements, the axial length is shortened as much as possible, thereby exposing several contact protrusions 2100 of the contact sleeve 2000 for movable assembly with the coil assembly 110, thus achieving the design purpose of the contact protrusions 2100 in this application. The axial length of the contact sleeve 2000 can be less than the axial length of the iron core 1000, thereby exposing one or both ends of the iron core 1000 outside the contact sleeve 2000.

[0100] In one embodiment, the contact sleeve 2000 of the transmission assembly 120 is movably mounted in the coil assembly 110 along the coil axis; in this case, the push arm 2200 of the transmission assembly 120 can be approximately perpendicular to the coil axis of the coil assembly 110, for example, the angle between the trajectory of the push arm 2200 and the coil axis is between 80° and 100°. Furthermore, the push arm 2200 drives the contact system 200 to move along a straight trajectory parallel to the coil axis.

[0101] Continue reading Figure 1 and Figure 2 As shown, in one embodiment, the coil assembly 110 may include components such as a wire frame, a first coil unit 111, and a second coil unit 112. The wire frame has a wire frame cylindrical wall. The first coil unit 111 may be disposed on the wire frame cylindrical wall of the wire frame, and the interior of the first coil unit 111 has a first coil space. One end of the iron core 1000 and the contact sleeve 2000 is movably assembled in the first coil space of the first coil unit 111. The second coil unit 112 may be disposed on the wire frame cylindrical wall of the wire frame, and the interior of the second coil unit 112 has a second coil space. The other end of the iron core 1000 and the contact sleeve 2000 is movably assembled in the second coil space of the second coil unit 112.

[0102] Therefore, when the outer wall of the contact sleeve 2000 is provided with a plurality of contact protrusions 2100, the plurality of contact protrusions 2100 make point contact or line contact with the inner wall of at least one of the first coil space and the second coil space. For example, the portion of the contact protrusions 2100 in the contact sleeve 2000 that extends into the first coil space makes point contact or line contact with the inner wall of the first coil space. Similarly, the portion of the contact protrusions 2100 in the contact sleeve 2000 that extends into the second coil space makes point contact or line contact with the inner wall of the second coil space.

[0103] At least one of the first coil space and the second coil space has a guide arc surface at its spatial port, which is configured to guide the movement of the contact sleeve 2000. Therefore, the guide arc surface can also be used to enable the two ends of the contact sleeve 2000 to quickly and accurately extend into the first coil space or the second coil space.

[0104] Continue to refer to Figure 1 and Figure 7 As shown, there is a gap 113 between the first coil unit 111 and the second coil unit 112. Therefore, the push arm 2200 is configured to move within the gap 113 and cannot move out of the gap 113. So, when the contact sleeve 2000 reciprocates, the push arm 2200, which is connected to or integrally formed with the contact sleeve 2000, will also reciprocate along with the contact sleeve 2000.

[0105] At this point, the push arm 2200 is confined within the interval limiting distance 113, which in turn conversely limits the contact sleeve 2000 to move within the corresponding path range and prevents it from leaving that path range. Therefore, since the contact sleeve 2000 is fitted with a retaining ring 2400, the push arm 2200 is connected to the retaining ring 2400 through the structural reinforcement 2300, and the retaining ring 2400 is configured to be confined within the interval limiting distance 113.

[0106] Furthermore, the maximum diameter of the retaining ring 2400 can be designed to be larger than the inner diameter in the first coil space and the second coil space, thereby enabling the retaining ring 2400 to be configured to make limiting contact with the first coil unit 111 and the second coil unit 112, thereby further restricting the movement of the push arm 2200, the structural reinforcement 2300, the retaining ring 2400 and the contact sleeve 2000 as a whole within a preset path range.

[0107] Regarding the structural design of the coil assembly 110, those skilled in the art can design it according to actual needs, thereby enabling the transmission assembly 120 provided in this application to have a suitable assembly structure with the coil assembly 110, and then using the contact protrusion 2100 of this application to realize the design change from surface contact to point contact or line contact, solving the technical problems mentioned in this application, which will not be limited or elaborated here.

[0108] Regarding the contact system 200, the contact system 200 may include a movable member 210, which may be configured for movably mounting on the base of a relay. The movable member 210 is provided with a drive docking portion 211, and the push arm 2200 of the transmission assembly 120 is drivenly connected to the drive docking portion 211 of the movable member 210. In one embodiment, the drive docking portion 211 may be configured as a drive docking groove formed in the movable member 210, thereby allowing the push arm 2200 of the transmission assembly 120 to be inserted into the drive docking groove of the movable member 210, achieving power transmission through this insertion assembly. The push arm 2200 of the transmission assembly 120 may be designed to have an interference fit with the drive docking groove of the movable member 210. This interference fit design allows for a certain degree of buffering margin in force transmission, preventing structural damage due to unexpected force transmission jamming.

[0109] In addition, the movable component 210 may be provided with a plurality of contact assembly slots 212, which can be used to assemble moving contact components, which can cooperate with stationary contact components during operation. In one embodiment, a counterweight element 213 may be provided at one end of the movable component 210, and a weight-reducing hollow 214 is provided at the other end of the movable component 210. The design of the counterweight element 213 and the weight-reducing hollow 214 achieves overall gravity balance, improving stability during movement. Furthermore, the movable component 210 is provided with an auxiliary contact pushing part 215.

[0110] For more information regarding the relay in this application, please refer to [link / reference needed]. Figures 7 to 13 As shown, the relay includes a base 300, which has a contact cavity 301 and a magnetic circuit cavity 302 inside. The contact cavity 301 is provided with an inner cover plate fixing part 310, a stationary spring fixing part 320, and a moving spring assembly part 330. The magnetic circuit cavity 302 and the contact cavity 301 are connected via a linkage channel. The contact system 200 is assembled in the contact cavity 301, and the magnetic circuit system 100 is assembled in the magnetic circuit cavity 302. The magnetic circuit system 100 is drivenly connected to the contact system 200 in the contact cavity 301 via the linkage channel. Those skilled in the art can design the structure of each part of the relay and the assembly relationship between them according to actual needs, which is not limited here.

[0111] See Figure 8 As shown, the base 300 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 301, and the Z-axis direction is perpendicular to the planes containing the X-axis and Y-axis directions. At this time, the moving member 210 of the contact system 2000 is movably mounted to the moving spring assembly 330 in the contact cavity 301 along the Y-axis direction. The moving member 210 is configured to mount the moving contact assembly 220, and the stationary spring fixing part 320 is used to mount the stationary contact assembly 210.

[0112] To ensure that the moving part 2100 drives the moving contact assembly 6000 to move relative to the stationary contact assembly 5000 in the base 1000 according to the expected trajectory, in one embodiment, a sliding track 340 is provided in the contact cavity 301, and the moving part 210 is slidably assembled in the contact cavity 301 along the sliding track 340; the moving part 210 is provided with a sliding protrusion 216, and the moving part 210 is slidably assembled with the sliding track 340 through the sliding protrusion 216.

[0113] The sliding track 340 may include a first track groove 341 formed on the bottom surface of the contact cavity 301 of the base 300 and two first track walls 342 disposed on both sides of the first track groove 341. The first track groove 341 is configured as a straight groove and the first track walls 342 are configured as straight walls. The inner sides of the two first track walls 342 are in the same plane as the inner groove walls on both sides of the first track groove 341.

[0114] Therefore, by setting two first track walls 342 on both sides of the first track groove 341, the space for sliding assembly of the sliding protrusion 216 can be defined by the two first track walls 342. Due to the design of the two first track walls 342, the groove depth of the first track groove 341 is further increased, which is equivalent to providing a deeper sliding space for the sliding protrusion 216. This not only improves the sliding stability of the sliding protrusion 216, but also allows the two first track walls 342 on both sides to serve as a stop structure to prevent the sliding protrusion 216 from tilting to both sides.

[0115] The relay includes an outer cover plate 400, and an outer cover plate fixing part 350 is provided in the contact cavity 301. The outer cover plate 400 is mounted on the outer cover plate fixing part 350. The outer cover plate 400 makes limiting contact with the moving member 210, and the outer cover plate 400 is configured to restrict the movement of the moving member 210 in a direction away from the contact cavity 301. The outer cover plate 400 is provided with a limiting track 410, and the moving member 210 is slidably assembled along the limiting track 410. The moving member 210 is provided with a limiting protrusion 217, and the moving member 210 is slidably assembled with the limiting track 410 through the limiting protrusion 217.

[0116] The limiting track 410 may include a second track groove 411 formed on the surface of the outer cover plate 400 and two second track walls 412 disposed on both sides of the second track groove 411. The second track groove 411 is configured as a straight groove, and the second track walls 412 are configured as straight walls. The inner sides of the two second track walls 412 are in the same plane as the inner groove walls on both sides of the second track groove 411.

[0117] Therefore, by setting two second track walls 412 on both sides of the second track groove 411, the space for sliding assembly of the limiting protrusion 217 can be defined by the two second track walls 412. Due to the design of the two second track walls 412, the groove depth of the second track groove 411 is further increased, which in turn provides a deeper sliding space for the limiting protrusion 217. This not only improves the sliding stability of the limiting protrusion 217, but also allows the two second track walls 412 on both sides to serve as a stop structure to prevent the limiting protrusion 217 from tilting to both sides.

[0118] The height of the limiting protrusion 217 protruding from the moving member 210 is greater than the height of the sliding protrusion 216 protruding from the moving member 210, and the sum of the depth of the second track groove 411 and the height of the second track wall 412 is greater than the sum of the depth of the first track groove 341 and the height of the first track wall 342. Therefore, when the moving member 210 reciprocates along a preset trajectory, the sliding protrusion 216 can mainly guide the direction of movement within the space formed by the second track groove 411 and the two second track walls 412. At the same time, the combined dimensions of the depth of the first track groove 341 and the height of the first track wall 342 are designed to be larger, mainly to provide a more stable limiting space for the limiting protrusion 217, so that the limiting protrusion 217 is stably restricted to reciprocating in the preset direction within the space formed by the second track groove 411 and the two second track walls 412, thereby improving the stability of the movement.

[0119] 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.

[0120] 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 transmission assembly (120) configured for use with a relay, characterized in that, The transmission assembly (120) includes: Iron core (1000); A contact sleeve (2000) having an axially extending sleeve cavity, the contact sleeve (2000) being sleeved and fitted onto the outside of the iron core (1000) based on the sleeve cavity; wherein the contact sleeve (2000) is configured for movably fitting into the coil assembly (110); at least one of the outer wall of the contact sleeve (2000) and the inner wall of the coil assembly (110) is provided with a plurality of contact protrusions (2100). A push arm (2200) is connected to the contact sleeve (2000) and is configured to be driven to the contact system (200).

2. The transmission assembly (120) according to claim 1, characterized in that, The outer wall of the contact sleeve (2000) and the inner wall of the coil assembly (110) are engaged with each other through point contact or line contact via a plurality of the contact protrusions (2100); and / or, A plurality of the contact protrusions (2100) are disposed on the outer wall of the contact sleeve (2000), and the contact protrusions (2100) are configured for point contact engagement or line contact engagement with the coil assembly (110); and / or, The axial length of the contact sleeve (2000) is less than the axial length of the iron core (1000), and both ends of the iron core (1000) are exposed outside the contact sleeve (2000); and / or, The push arm (2200) is indirectly assembled to the contact sleeve (2000) through a structural reinforcement (2300).

3. The transmission assembly (120) according to claim 2, characterized in that, The contact protrusion (2100) is configured as a linear protrusion disposed along the axial direction of the contact sleeve (2000), and the contact protrusion (2100) is configured for linear contact with the coil assembly (110) along the axial direction of the contact sleeve (2000); and / or, The surface of the contact protrusion (2100) is configured as a curved surface; and / or, A retaining ring (2400) is fitted around the outside of the contact sleeve (2000), and the structural reinforcement (2300) is indirectly assembled to the contact sleeve (2000) through the retaining ring (2400).

4. The transmission assembly (120) according to claim 3, characterized in that, Each of the contact protrusions (2100) includes a first constant protrusion segment (2110), a second constant protrusion segment (2120), a first gradient protrusion segment (2130), and a second gradient protrusion segment (2140); the retaining ring (2400) is sleeved at the center of the contact sleeve (2000), the first gradient protrusion segment (2130) and the second gradient protrusion segment (2140) are respectively located at both ends of the contact sleeve (2000), the first constant protrusion segment (2110) is located between the retaining ring (2400) and the first gradient protrusion segment (2130), and the second constant protrusion segment (2120) is located between the retaining ring (2400) and the second gradient protrusion segment (2140); and / or, The plurality of contact protrusions (2100) are parallel to each other, and the plurality of contact protrusions (2100) are distributed along the circumferential direction of the contact sleeve (2000) on the outer wall of the contact sleeve (2000). In the circumferential direction of the contact sleeve (2000), the circumferential spacing between adjacent contact protrusions (2100) is the same; and / or, The width of the fixing ring (2400) is greater than the width of the push arm (2200), and the width of the structural reinforcement (2300) gradually increases from the fixing ring (2400) to the push arm (2200). The maximum width of the structural reinforcement (2300) is less than or equal to the width of the fixing ring (2400), and the minimum width of the structural reinforcement (2300) is less than or equal to the width of the push arm (2200).

5. The transmission assembly (120) according to claim 4, characterized in that, The first constant protrusion segment (2110) and the second constant protrusion segment (2120) are respectively connected to both ends of the fixing ring (2400); and / or, In the direction from the center position to both ends of the contact sleeve (2000), at least one of the first gradient protrusion (2130) and the second gradient protrusion (2140) gradually decreases in protrusion height on the surface of the contact sleeve (2000); and / or, The first gradient protrusion (2130) is connected to the end of the first constant protrusion (2110) away from the fixing ring (2400), and the second gradient protrusion (2140) is connected to the end of the second constant protrusion (2120) away from the fixing ring (2400); and / or, The length of the first constant protrusion segment (2110) is at least three times greater than the length of the first gradient protrusion segment (2130), and the length of the second constant protrusion segment (2120) is at least three times greater than the length of the second gradient protrusion segment (2140); and / or, In the direction from the fixed ring (2400) to the push arm (2200), the thickness of the structural reinforcement (2300) gradually increases, and the minimum thickness of the structural reinforcement (2300) is less than or equal to the thickness of the push arm (2200); and / or, The contact sleeve (2000), the contact protrusion (2100), the push arm (2200), the structural reinforcement (2300), and the fixing ring (2400) are configured as an integrally formed structure.

6. A parallel transmission mechanism, characterized in that, The parallel transmission mechanism includes: A magnetic circuit system (100) comprising a coil assembly (110) and a transmission assembly (120) as claimed in any one of claims 1-5, wherein a contact sleeve (2000) of the transmission assembly (120) is movably fitted into the coil assembly (110); The contact system (200) is driven to connect the push arm (2200) of the transmission assembly (120).

7. The parallel transmission mechanism according to claim 6, characterized in that, The coil assembly (110) includes: Wireframe; The first coil unit (111) is disposed on the wall of the wire frame cylinder of the wire frame. The first coil unit (111) has a first coil space inside. One end of the iron core (1000) and the contact sleeve (2000) are movably assembled in the first coil space of the first coil unit (111). The second coil unit (112) is disposed on the wall of the wire frame cylinder of the wire frame. The interior of the second coil unit (112) has a second coil space. The other end of the iron core (1000) and the contact sleeve (2000) are movably assembled in the second coil space of the second coil unit (112). The outer wall of the contact sleeve (2000) is provided with a plurality of contact protrusions (2100), and the plurality of contact protrusions (2100) are in point contact or line contact with the inner wall of at least one of the first coil space and the second coil space.

8. The parallel transmission mechanism according to claim 7, characterized in that, The contact system (200) includes a movable element (210) configured for movably mounting on a base of a relay, wherein the movable element (210) is provided with a drive docking portion (211), and the push arm (2200) of the transmission assembly (120) is drivably connected to the drive docking portion (211) of the movable element (210); and / or, A limiting gap (113) exists between the first coil unit (111) and the second coil unit (112), and the push arm (2200) is configured to be confined within the limiting gap (113) as the contact sleeve (2000) reciprocates; and / or, At least one of the first coil space and the second coil space has a guide arc surface at its spatial port, which is configured to guide the movement of the contact sleeve (2000).

9. The parallel transmission mechanism according to claim 8, characterized in that, The drive docking part (211) is configured to be formed in the drive docking groove of the moving member (210), and the push arm (2200) of the transmission assembly (120) is inserted into the drive docking groove of the moving member (210); and / or, The movable component (210) is provided with a plurality of contact mounting slots (212); and / or, A retaining ring (2400) is fitted around the outside of the contact sleeve (2000). The push arm (2200) is connected to the retaining ring (2400) through a structural reinforcement (2300). The retaining ring (2400) is configured to be confined within the interval limiting distance (113). The maximum diameter of the retaining ring (2400) is greater than the inner diameter in the first coil space and the second coil space. The retaining ring (2400) is configured to make limiting contact with the first coil unit (111) and the second coil unit (112).

10. The parallel transmission mechanism according to claim 8, characterized in that, The push arm (2200) of the transmission assembly (120) is interference-fitted with the drive mating groove of the moving part (210); and / or, One end of the movable component (210) is provided with a counterweight element (213), and the other end of the movable component (210) has a weight-reducing cutout (214); and / or, The movable part (210) is provided with an auxiliary contact pushing part (215).

11. The parallel transmission mechanism according to claim 6, characterized in that, The contact sleeve (2000) of the transmission assembly (120) is movably mounted in the coil assembly (110) along the coil axis of the coil assembly (110); The push arm (2200) of the transmission assembly (120) is perpendicular to the coil axis of the coil assembly (110), and the push arm (2200) drives the contact system (200) to move along a straight trajectory parallel to the coil axis.

12. A relay, characterized in that, The relay includes: The base (300) has a contact cavity (301) inside, and the contact cavity (301) is provided with an inner cover plate fixing part (310), a static spring fixing part (320) and a dynamic spring assembly part (330); the base (300) 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 (301), and the Z-axis direction is perpendicular to the plane containing the X-axis direction and the Y-axis direction; The parallel transmission mechanism as described in any one of claims 6 to 11; the movable part (210) of the contact system (2000) is movably mounted in the contact cavity (301) along the Y-axis direction to the moving spring assembly (330), the movable part (210) being configured to mount the moving contact assembly (220).

13. The relay according to claim 12, characterized in that, A sliding track (340) is provided in the contact cavity (301), and the moving part (210) is slidably assembled in the contact cavity (301) along the sliding track (340); the moving part (210) is provided with a sliding protrusion (216), and the moving part (210) is slidably assembled with the sliding track (340) through the sliding protrusion (216).

14. The relay according to claim 13, characterized in that, The sliding track (340) includes a first track groove (341) formed on the bottom surface of the contact cavity (301) of the base (300) and two first track walls (342) disposed on both sides of the first track groove (341). The first track groove (341) is configured as a straight groove, the first track wall (342) is configured as a straight wall, and the inner sides of the two first track walls (342) are in the same plane as the inner groove walls on both sides of the first track groove (341).

15. The relay according to claim 14, characterized in that, The relay includes: An outer cover plate (400) is provided in the contact cavity (301) and an outer cover plate fixing part (350) is provided therein. The outer cover plate (400) is installed in the outer cover plate fixing part (350). The outer cover plate (400) makes limiting contact with the moving member (210) and the outer cover plate (400) is configured to restrict the moving member (210) from moving in a direction away from the contact cavity (301). The outer cover plate (400) is provided with a limiting track (410), and the moving part (210) is slidably assembled along the limiting track (410); the moving part (210) is provided with a limiting protrusion (217), and the moving part (210) is slidably assembled with the limiting track (410) through the limiting protrusion (217).

16. The relay according to claim 15, characterized in that, The limiting track (410) includes a second track groove (411) formed on the surface of the outer cover plate (400) and two second track walls (412) disposed on both sides of the second track groove (411). The second track groove (411) is configured as a straight groove, and the second track walls (412) are configured as straight walls. The inner surfaces of the two second track walls (412) are in the same plane as the inner groove walls on both sides of the second track groove (411); and / or, The height of the limiting protrusion (217) protruding from the moving member (210) is greater than the height of the sliding protrusion (216) protruding from the moving member (210), and the sum of the depth of the second track groove (411) and the height of the second track wall (412) is greater than the sum of the depth of the first track groove (341) and the height of the first track wall (342).

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